Entries |
Document | Title | Date |
20080284258 | Chassis Component - Chassis part of a vehicle, with a magnet ( | 11-20-2008 |
20090066170 | MICROSYSTEM COMPRISING A BENDING BEAM AND PROCESS OF MANUFACTURE - A mechanical micro system comprising a flexible bending beam extending along a direction, and at least one magnetic element for creating a magnetic field. The flexible beam includes: a first circuit having a first topology for generating, in response to one current flowing through the first circuit, a force having an effect on the beam at one particular place so as to cause a first vibratory mode; a second circuit having a second topology for generating, in response to one current flowing through the second circuit, a force having an effect on the beam at one particular second position so as to cause a second vibratory mode. | 03-12-2009 |
20090096299 | ELECTROMAGNETIC EXCITER AND MANUFACTURING METHOD THEREFOR - A thin electromagnetic exciter has a flat casing including a casing body ( | 04-16-2009 |
20090243404 | Vibrator, controlling method thereof and portable terminal provided with the same - In accordance with the present invention, a vibrator including a case; an elastic member installed inside the case and made of shape memory alloy of which physical properties are varied as power is applied from an outside of the case; a vibrating body elastically installed inside the case by the elastic member; and a coil installed inside the case and vibrating the vibrating body as the power is applied from the outside. | 10-01-2009 |
20090256429 | PERMANENT MAGNET GENERATOR - A permanent magnet generator induces induction electromagnetic charge at the tip of the conductor with variable cross section using the permanent magnetic field and outputs induction electromagnetic charge current and electrical energy so as to be able to generate electricity permanently without any external energy. The permanent magnet generator includes an induction electromagnetic charge generator ( | 10-15-2009 |
20100096936 | VIBRATION MOTOR - A vibration motor includes a first resilient member and a second resilient member providing resilient forces in opposite directions; a first vibrator and a second vibrator coupled to the first resilient member and the second resilient member respectively; a magnetic body coupled to the first vibrator to create a magnetic field; and a coil applying a current of a predetermined frequency band in the region where the magnetic field is created. | 04-22-2010 |
20100127581 | VIBRATION MOTOR FOR PORTABLE TERMINAL - Disclosed is a vibration motor for a portable terminal, including a flat spring; a cylindrical magnetic substance mounted on the flat spring; an annular magnetic substance disposed around the cylindrical magnetic substance mounted on the flat spring; and a coil disposed between the cylindrical magnetic substance and the annular magnetic substance, wherein the magnetic substances perform a linear reciprocal movement by the electromagnetic force generated between the magnetic substances and the coil and by the elastic force of the flat spring as an electric current is applied to the coil. The vibration motor operates at higher resonant frequencies than those of conventional vibration motors, thereby improving the sense of an after-vibration and realizing a delicate haptic feedback function. | 05-27-2010 |
20100171376 | Electromagnetic vibrator and producing method thereof - An electromagnetic vibrator includes a vibration sheet, suspension edge, basin frame and magnetic return path system. The electromagnetic vibrator is prepared as connecting back surface of vibration sheet to voice coil being set in magnetic return path system, injecting the vibration sheet and suspension edge to be an integral unit, connecting suspension edge with basin frame by ultrasonic mode and connecting vice coil wire to terminal sheet on basin frame after the wire is connected by vibration sheet. | 07-08-2010 |
20100176664 | Electromechanical Generator for Converting Mechanical Vibrational Energy Into Electrical Energy - An electromechanical generator for converting mechanical vibrational energy into electrical energy, the electromechanical generator including a cantilever spring having a fixed end, a free end and a central portion therebetween, a mount for the cantilever spring to which the fixed end is fixed, a mass located at the free end of the cantilever spring, the mass including either a coil or at least one magnet defining a region of magnetic flux, wherein at least one of the fixed end and the free end of the cantilever spring is substantially stiffer than the central portion of the cantilever spring. | 07-15-2010 |
20100213773 | Linear Vibrator - A linear vibrator is disclosed. The linear vibrator includes a housing having a base and a cover, a number of elastic members connected to the housing, a vibrating unit suspended in the housing by the elastic members, and a coil positioned in the housing. The base has a bottom wall and a plurality of sidewalls extending vertically from the bottom wall. The vibrating unit has a magnet assembly and vibrates along a direction parallel to the bottom wall. | 08-26-2010 |
20100231060 | Linear vibration motor - A linear vibration motor according to an aspect of the invention may include: a case having a cavity to receive a mass therein; a movable part generating a magnetic field inside the case and moving in a transverse direction while being secured to the mass; a coil part generating a force, by which the mass performs a linear reciprocating motion, by interaction with the magnetic field generated from the movable part upon receiving power; and a support plate dividing the cavity in which the coil part is mounted to face the movable part. | 09-16-2010 |
20100277009 | LINEAR VIBRATOR - The present invention provides a linear vibrator which can enhance the assembly accuracy and prevent a vibration unit from coming into direct contact with a coil or a casing. The linear vibrator includes a vibration unit, a casing, a bracket and a spring member. The vibration unit includes a plate yoke which has a weight on an upper surface thereof, and an annular magnet which is provided on the plate yoke and surrounds the weight. The casing has an internal space for receiving the vibration unit therein. The bracket is coupled to the lower end of the casing. A cylindrical coil is provided on the bracket such that the vibration unit linearly vibrates in the cylindrical coil. The spring member is provided in the upper end of the casing to elastically support the vibration unit such that the vibration unit linearly vibrates. | 11-04-2010 |
20100277010 | LINEAR VIBRATOR - The present invention provides a linear vibrator comprising a weight having an auxiliary magnet which is provided in a lower end of the weight and generates magnetic force with respect to the bracket. Therefore, a magnetic attractive force between auxiliary magnet and the bracket prevents undesirable fine vibrations and prevents the vibration unit from coming into direct contact with the casing. | 11-04-2010 |
20100327672 | Electromechanical Generator for Converting Mechanical Vibrational Energy into Electrical Energy - An electromechanical generator for converting mechanical vibrational energy into electrical energy, the electromechanical generator comprising a housing, an electrically conductive coil assembly movably mounted in the housing, the coil assembly having radially inner and outer sides, and upper and lower edges, thereof, a mount for the coil assembly extending inwardly of the radially inner side for mounting the coil assembly for linear vibrational motion along an axis about, a first biasing device mounted between the housing and the mount to bias the electrically conductive coil assembly in opposed directions along the axis towards a central coil position, a magnetic core assembly movably mounted in the housing for linear vibrational motion along the axis, and a second biasing device mounted between the housing and the magnetic core assembly to bias the magnetic core assembly in opposed directions along the axis towards a central magnet position, wherein the magnetic core assembly encloses the electrically conductive coil assembly on the radially outer side and on the upper and lower edges, and on a part of the radially inner side, the magnetic core assembly having a gap on a radially inner portion thereof through which the mount extends, and the radially inner portion including two opposed magnets spaced along the axis. | 12-30-2010 |
20100327673 | LINEAR VIBRATOR - A linear vibrator is disclosed. In accordance with an embodiment of the present invention, the linear vibrator includes a base, a coil unit, which is coupled to the base, a magnet, which is coupled to the coil unit such that the magnet can move relatively with respect to the coil unit, and a leaf spring, which is interposed between the magnet and the base and includes a plurality of plate-shaped members having center portions thereof being separated from one another and both respective ends thereof being coupled to one another. Thus, the linear vibrator can increase the range of displacement in the leaf spring and increase the magnitude of vibration in the linear vibrator. | 12-30-2010 |
20110006618 | VIBRATION MOTOR - A linear vibrator is disclosed. The linear vibrator includes a base, a coil unit, which is coupled to the base, a magnet, which is coupled to the coil unit such that the magnet can move relatively, and a plurality of leaf springs, which are interposed between the magnet and the base. Here, the plurality of leaf springs face one another and are coupled to one another Thus, the linear vibrator can increase the range of vibration displacement in a structure and increase the amount of vibration in the linear vibrator. Also, even though the linear vibrator becomes thinner, the range of displacement can be increased because the weight is vibrated horizontally. | 01-13-2011 |
20110012441 | HORIZONTAL LINEAR VIBRATOR - The present invention provides a horizontal linear vibrator which can increase vibration strength while at the same time guaranteeing a sufficiently long lifetime and satisfactory responsivity. The horizontal linear vibrator includes a casing, a bracket, a vibration unit and springs. The bracket and the casing form the internal space therein. A coil is provided above the bracket such that the center axis thereof is oriented in a horizontal direction. The vibration unit is disposed through the coil and comprises a magnetic field generating unit and a weight. The magnetic field generating unit includes a magnet assembly and a yoke. The magnet assembly has magnets which are provided on opposite sides of a magnetic body core such that the similar magnetic poles of the magnets face each other. The weight is mounted to the magnetic field generating unit. The springs are coupled to the casing or the bracket and elastically support the vibration unit. | 01-20-2011 |
20110012442 | LINEAR TYPE VIBRATION MOTOR HAVING MAGNET CASING - A linear type vibration motor having a magnet casing is disclosed. The linear type vibration motor in accordance with an embodiment of the present invention includes a magnet assembly having a pair of magnets, in which same magnetic poles thereof face each other, a magnet casing, which has a hollow part formed therein and houses the magnet assembly in the hollow part, a base, which has a bobbin formed thereon and in which the magnet casing is inserted into the bobbin, a coil, which is coupled to the bobbin, a weight, which is coupled to both ends of the magnet casing, and a pair of elastic bodies, which are interposed between either end of the base and either end of the weight, respectively. Thus, the operating lifetime of the linear type vibration motor can be extended, and this arrangement can prevent the linear type vibration motor from being damaged by an external shock. | 01-20-2011 |
20110018366 | LINEAR VIBRATOR - Disclosed herein is a linear vibrator. The linear vibrator includes a casing defining an internal space. A vibratory unit is accommodated in the casing to vibrate up and down. A spring is mounted at an upper circumferential end thereof to an upper surface of the casing and secured at a lower end thereof to an upper portion of the vibratory unit, thus elastically supporting the vibratory unit. An annular locking ring has a larger outer diameter than an outer diameter of the vibratory unit and an outer diameter of the spring so that the upper circumferential end of the spring is locked to the casing through press-fitting. A bracket supports the casing and the vibratory unit, with a circuit board being mounted on the bracket. | 01-27-2011 |
20110018367 | HORIZONTAL LINEAR VIBRATOR - The present invention provides a horizontal linear vibrator which can reduce the thickness but increase vibration strength while at the same time guaranteeing a sufficiently long lifetime and satisfactory responsivity. The horizontal linear vibrator includes a casing, a bracket, a vibration unit and springs. The casing defines an internal space therein. The bracket is disposed under the casing. A cylindrical coil is provided on the bracket. The vibration unit has a magnet, a yoke and a weight. The yoke contains the magnet therein and is open on the lower end thereof. The weight is coupled to the outer surface of the yoke. The springs are coupled to sidewall plates of the casing or the bracket. The springs elastically support the vibration unit to allow the vibration unit to vibrate in the horizontal direction. | 01-27-2011 |
20110043056 | ELECTROMAGNETIC VIBRATION DEVICE AND MANUFACTURING METHOD THEREOF - An electromagnetic vibration device includes a vibrating plate, a suspending frame, upper and lower basin frames, a voice coil, and a magnetic loop system. Multiple voice coil fixing slots are uniformly distributed on the circumference of the vibrating plate corresponding to the inserting pieces of the voice coil, and the inserting pieces are passed through the voice coil fixing slots of the vibrating plate and fixed to the vibrating plate. One end of the lead of the voice coil is embedded in a groove on back of the vibrating plate and connected to the terminal of the lower basin frame. | 02-24-2011 |
20110050008 | MAGNETIC VIBRATOR - A magnetic vibrator including a first magnetic portion and a second magnetic portion is disclosed. The first magnetic portion includes an inner plate, a first magnet and a second magnet. The inner plate is disposed between the first magnet and the second magnet. The second magnetic portion includes a coil and a wrapper. The coil is disposed around the first magnetic portion and wrapped in the wrapper. The wrapper has a gap corresponding to the inner plate. An interval is configured between the first magnetic portion and the second magnetic portion. When a current is occurred in the coil, the first magnetic portion and the second magnetic portion are actuated to move axially with respect to each other. | 03-03-2011 |
20110068639 | Horizontal linear vibrator - A horizontal linear vibrator includes: a cover unit; a bracket providing an internal space between the cover unit and the bracket; a vibration unit including a mass body having an insertion part providing an accommodating space at one surface thereof, mounted in the internal space, and making a horizontal, linear movement; a magnetic field unit providing an electromagnetic force to allow the vibration unit to move horizontally; and one or more sub-mass units inserted in the insertion part in order to adjust a resonance frequency of the vibration unit. | 03-24-2011 |
20110068640 | Horizontal linear vibrator - A horizontal linear vibrator includes: a bracket providing an internal space; a vibration unit mounted in the internal space and making a horizontal, linear movement; a magnetic field unit providing an electromagnetic force to allow the vibration unit to move horizontally; and a cover unit formed to cover an upper portion of the bracket, wherein the bracket includes a support plate part so as to support the vibration unit to make a horizontal, linear movement, and the cover unit is formed to overlap with the support plate part. | 03-24-2011 |
20110068641 | Horizontal linear vibrator - A horizontal linear vibrator includes: a bracket having a coil part with a hollow; a vibration unit including a yoke part having an accommodation space for accommodating the coil part therein and a passage hole formed to pass through the accommodation space; and a magnetic field unit including a magnet disposed in the accommodation space through the passage hole and providing an electromagnetic force to allow the vibration unit to horizontally move by an interaction of the coil part and the magnet. | 03-24-2011 |
20110089772 | FLAT LINEAR VIBRATING MOTOR - A flat linear vibrating motor includes a cover, a base forming a receiving cavity together with the cover, a coil fixed on the base, an elastic member coupled to the base, a vibrator suspended in the cavity by the elastic member. The elastic member includes a mounting section couple to the base, an arm extending from the mounting section, a free end extending from the arm, and a binder. The binder includes two plates for clamping the vibrator and a coupling section coupling the two plates for positioning the free end between the vibrator and the coupling section. | 04-21-2011 |
20110089773 | LINEAR VIBRATION GENERATOR - A linear vibration generator is disclosed. The linear vibration generator in accordance with an embodiment of the present invention includes a stationary part, which has a polygonal-prism-shaped coil and in which the polygonal-prism-shaped coil induces a magnetic field by having an electric current supplied, a vibrating part, which has a polygonal-prism-shaped magnet and in which a portion of the polygonal-prism-shaped magnet is inserted into the coil, an elastic member, which is coupled to the stationary part and elastically supports the vibrating part such that the vibrating part can move linearly, and a lubricating band, which is formed on an outer circumferential surface of the magnet. | 04-21-2011 |
20110101796 | VIBRATION ACTUATOR - A vibration actuator includes a coil that extends in a vibration direction and has a flat shape and a magnet that extends in the vibration direction and has a flat shape, so that a case can be made flat or low profile. A weight portion is supported by a shaft, so that, when a drop impact is applied, the weight portion can move along the shaft and the weight portion is not freely moved in the case. A coil spring is disposed between a spring receiving portion and a weight portion. Therefore there is no unnecessary space in the case, so that space can be saved and the vibration actuator can be made compact. | 05-05-2011 |
20110127858 | Linear Vibrator - Disclosed is a linear vibrator, the linear vibrator including a substrate supplying electric power, a case including a base supporting the substrate and a cover wrapping the base, a stator fixed to either the base or the cover, a vibrator including magnets each arranged to face both sides of the stator and a weight to which the magnets are fixed, an inner spring coupled to both sides of the weight to wrap the weight, and an external spring, both end portions of which are coupled to an inner lateral surface of the case to wrap the inner spring, and a part of which is coupled to the inner spring. | 06-02-2011 |
20110133578 | LINEAR VIBRATOR - Disclosed herein is a linear vibrator. The linear vibrator includes a stationary unit which has on an upper portion thereof a magnet generating a predetermined magnetic force and a yoke, and defines an internal space. A vibratory unit includes a coil mounted to face the magnet and applying an electric current, and a mass body. A spring is secured at a lower end thereof to the stationary unit and secured at an upper end thereof to the vibratory unit, thus elastically supporting the linear motion of the vibratory unit. A lubricating part is provided between an outer circumference of each of the magnet and the yoke and the coil, thus preventing noise and abrasion when the vibratory unit moves linearly, in addition to maintaining a vibration. | 06-09-2011 |
20110156500 | LINEAR VIBRATOR - A linear vibrator is disclosed. The linear vibrator includes a cover, a base forming a hollow space together with the cover and defining a plurality of sidewalls, a pair of elastic members received in the hollow space, a weight with a plurality of laterals suspended in the hollow space by the elastic members, and a magnet assembly provided with a plurality of magnetic poles and accommodated in the weight. Each elastic member defines at least a fastening arm comprising a connecting portion, an inner arm extending from one end of the connecting portion for abutting against the lateral of the weight, and an outer arm extending from another end of the connecting portion for abutting against the sidewall of the base. The extending direction of the inner arm and the outer arm of each fastening arm is the same. The magnetic poles of magnet assembly near the coil are opposite to each other. A height of the linear vibrator with the structure can be reduced. | 06-30-2011 |
20110193426 | Vertical vibrator - There is provided a vertical vibrator according to an exemplary embodiment of the present invention. The vertical vibrator may include: a casing having an inner space of a predetermined size formed therein and a step portion protruded to be stepped from an upper edge thereof; a magnetic unit including a yoke disposed in the inner space of the casing and a magnet fixed by being magnetized on a closed inner surface of the yoke in a vertical direction; an elastic member including an outer ground portion fixed to the step portion and an inner ground portion fixed to the magnetic unit; and a coil for generating vibrations disposed on the lower portion of the magnetic unit and generating electromagnetic force by interaction with the magnetic unit when power is applied thereto. | 08-11-2011 |
20110193427 | ELECTRICAL ENERGY GENERATOR - An electrical energy generator comprising a housing having a longitudinal axis and opposite ends, an electromagnetically active mass positioned within the housing reciprocally movable along at least a portion of the longitudinal axis, an electrically conductive material within the housing, a body engaged with the electromagnetically active mass, and at least one spring positioned between at least one of an end of the housing and an end of the body, or between an end of the body and the electrically conductive material. | 08-11-2011 |
20110193428 | ELECTRICAL ENERGY GENERATOR - An electrical energy generator including a housing, an electromagnetically active mass positioned within the housing, an electrically conductive material within the housing, a body positioned within the housing wherein the body and the electromagnetically active mass move relative to each other, and at least one spring for imparting restorative forces to the electromagnetically active mass and the body. | 08-11-2011 |
20110198948 | RECIROCATING VIBRATION GENERATOR - A reciprocating vibration generator making the magnetic circuit of a permanent magnet a closed loop so as to obtain a high vibration force, specifically a vibration linear actuator having a ring-shaped weight, a reciprocating vibrator having a ring-shaped permanent magnet in a center hole of the weight, a first plate spring and a second plate spring supporting this reciprocating vibrator with respect to a recessed case and an end plate to be able to elastically displace in a thickness direction between a first end face and a second end face, a tube-shaped toroidal coil running through a center hole of the ring-shaped permanent magnet and generating a reciprocating vibration magnetic field for driving the ring-shaped permanent magnet to reciprocate in the thickness direction, and a columnar core running through the inside of this toroidal coil, wherein the ring-shaped permanent magnet is magnetized in the thickness direction, and the toroidal coil has a lower stage toroidal coil and an upper stage toroidal coil coaxial with and adjacent to the same, wound in the opposite direction, and connected in series with the same. | 08-18-2011 |
20110198949 | VIBRATION GENERATOR - A vibration generator making a closed loop of a magnetic circuit of a permanent magnet to obtain a high vibrating force while kept small in size, including a reciprocating vibrator having a ring-shaped permanent magnet in a center hole of a ring-shaped weight, a first and second plate springs supporting this reciprocating vibrator at a recessed case and end plate to be able to elastically displace in a thickness direction spanning a first and a second end faces, a tubular toroidal coil passing through a center hole of the permanent magnet and generating a reciprocating vibrating magnetic field for reciprocatingly driving the permanent magnet in the thickness direction, and a columnar core passing through this toroidal coil, the ring-shaped permanent magnet being magnetized in the thickness direction, and the toroidal coil having a lower toroidal coil and an adjoining reversely wound series connected upper toroidal coil coaxial with the same. | 08-18-2011 |
20110204732 | LINEAR MOTOR AND MOBILE DEVICE HAVING LINEAR MOTOR - A linear motor capable of attaining thinning is obtained. This linear motor ( | 08-25-2011 |
20110227426 | LINEAR VIBRATOR - Disclosed herein is a linear vibrator having a mass body which is accommodated in a casing defining an internal space and is vibrated. The linear vibrator includes a bracket supporting the linear vibrator from a lower position. The bracket has a depression in a bottom thereof such that a coil lead wire of a coil is placed in the depression, thus preventing friction between the coil lead wire and a movable unit. | 09-22-2011 |
20110227427 | LINEAR VIBRATOR - The linear vibrator includes a base forming a hollow space, a suspension fixed on the base, and an oscillating portion suspended in the hollow space by the suspension. The suspension defines a flat part, a connecting portion bent downward from the flat part, and a spring portion extended horizontally in a direction parallel to flat part from the end of the connecting portion. The suspension is directly connected with the outside component, thereby transmitting the vibration to the outside component rapidly. | 09-22-2011 |
20110241451 | Linear Vibrator - Disclosed is a linear vibrator, the vibrator including a case including a lower case and an upper case engaged with the lower case; a stator that is disposed on a bottom plate of the lower case and includes a coil block formed of coil wound in the horizontal direction to the bottom plate; a vibrator including a weight having a storage that is formed in a position corresponding to the coil block to store the coil block, a yoke to cover the storage of the weight, and first and second magnets that are disposed in the storage and on the coil block; and an elastic member that has one side fixed to external surfaces of the weight, the external surfaces facing each other, and the other side engaged with a side of the case facing the external surfaces of the weight, the other side facing the one side. | 10-06-2011 |
20110260559 | FLAT VIBRATION MOTOR - A flat vibration motor for suppressing deformation of coils even in a reflow at a high temperature, having a stator structure | 10-27-2011 |
20110260560 | LINEAR VIBRATOR HAVING BROADBAND - A linear vibrator is disclosed having a structure capable of generating a large vibratory force with a small size, outputting various types of vibrations in a wide bandwidth, and accurately coupling the magnet, the linear vibrator including: a case providing an inner space; a trembler including a yoke formed with a circular plate-shaped wing unit, a one inner lateral end-closed, cylindrical insertion unit bent from the wing unit to have a stair, an inner magnet coupled by being inserted into the insertion unit, and an external magnet coupled to one surface of the wing unit; an elastic member fixed at one end to the case and fixed at the other end to the trembler; and a stator fixed to the case to vibrate the trembler. | 10-27-2011 |
20110266892 | VIBRATION GENERATING DEVICE - A vibration generating device includes a coil wound around an outer peripheral surface of a core, a vibrator vibrating due to a magnetic field generated by the coil, a magnetic field forming unit having a pair of magnets oppositely disposed at both surfaces of the vibrator so that the same polarities face each other or one magnet disposed at one side surface of the vibrator, and an elastic support member for supporting the vibrator so that the vibrator is capable of freely vibrating, wherein a vibrating direction of the vibrator is set to be parallel to a fixed surface of the device, by means of a magnetic flux generated by the magnetic field forming unit. | 11-03-2011 |
20110278959 | LINEAR VIBRATOR - There is provided a linear vibrator including: a housing having an internal space formed therein; a magnetic field unit including a yoke disposed in the internal space and having a magnet and a magnet insertion part formed therein, and interacting with a coil to which power is applied to linearly move in the internal space, the magnet insertion part determining an insertion position of the magnet; and an elastic member disposed in a space between the housing and the magnetic field unit and elastically supporting linear movement of the magnetic field unit. | 11-17-2011 |
20110278960 | LINEAR VIBRATOR - There is provided a linear vibrator including: a housing having an internal space formed therein; a magnetic field unit including a yoke disposed in the internal space, a magnet mounted on a surface of the yoke, and a yoke plate formed on a surface opposite to a contact surface between the magnet and the yoke; a coil interacting with the magnetic field unit to allow the magnetic field unit to move linearly when power is applied thereto, and forming a movement space for the magnetic field unit; magnetic fluid provided in a clearance between the magnetic field unit and the coil and alleviating contact impact between the magnetic field unit and the coil; and a contact avoiding unit formed on at least one of the magnetic field unit and the coil and avoiding a contact between the magnetic field unit and the coil due to an external impact. | 11-17-2011 |
20110278961 | LINEAR VIBRATOR - There is provided a linear vibrator including: a housing having an internal space formed therein; a magnetic field unit including a yoke disposed in the internal space and a magnet mounted on a surface of the yoke, and interacting with a coil to which power is applied to thereby generate vibrations in the internal space; a mass body fixed to an outer surface of the yoke; and a claw part being a portion of the yoke, supporting a bottom of the mass body, and extended to a position corresponding to the center of mass of the mass body. | 11-17-2011 |
20110278962 | LINEAR VIBRATOR - There is provided a linear vibrator including: a housing having an internal space formed therein; a magnetic field unit including a yoke disposed in the internal space and a magnet mounted on one surface of the yoke, and interacting with a coil to which power is applied to thereby generate vibrations in the internal space; an elastic member configured of a housing fixing part fixed to an inner surface of the housing, a yoke fixing part surface-contacting the other surface of the yoke, and a plurality of connecting strip parts disposed such that an elastic space is formed between the housing fixing part and the yoke fixing part; and a clearance part formed between the yoke and the yoke fixing part, and preventing the connecting strip parts from contacting the yoke during the vibrations of the magnetic field unit. | 11-17-2011 |
20110291497 | Linear vibrator - There is provided a linear vibrator including a fixing unit having a magnet in an inner space of a certain size, the magnet generating magnetic force; a vibration unit including a coil disposed to face the magnet and generating electromagnetic force by interaction with the magnet, and a holder coupled with a surface of the coil and fixedly supporting a mass body which vibrates; and an elastic member coupled with the holder and the fixing unit and providing elastic force to the vibration unit. | 12-01-2011 |
20110309691 | Linear vibrator and electronic device having the same - There is provided a linear vibrator including a housing providing an internal space; a magnetic field part having a yoke disposed in the internal space and a magnet magnetized on a surface of the yoke and vibrating in the internal space by an interaction with a coil to which power is applied; an elastic member connecting the yoke and the housing and allowing the magnetic field part to be elastically supported in the internal space; and a magnetic flux collecting part collecting magnetic flux of the magnetic field part and allowing the magnetic field part to move towards the coil. | 12-22-2011 |
20110309692 | Linear Vibrator - Disclosed is a linear vibrator, the linear vibrator including: a stator including a circuit substrate formed at a bottom surface with a connection terminal and a coil block arranged at an upper surface opposite to the bottom surface and electrically connected to the connection terminal; a first cover arranged at the bottom surface of the circuit substrate and formed with an opening for exposing the connection terminal; a second cover coupled to the first cover in a bottom-opened cylindrical shape; and a vibrator including a magnet arranged inside the coil block, a yoke in which the magnet is mounted, and an elastic member coupled to the yoke and the second cover to vertically vibrate the magnet relative to the coil block. | 12-22-2011 |
20110316361 | Horizontal linear vibrator - There is provided a horizontal linear vibrator including a bracket providing an internal space; a vibration unit mounted in the internal space and including a mass body moving horizontally and linearly; and a magnetic field unit including a magnet fixed to the mass body and a coil installed within a magnetic field of the magnet and generating electromagnetic force to allow the vibration unit to move horizontally and linearly, wherein the coil includes a coil line disposed between the bracket and a printed circuit board and extending outside of the internal space of the bracket such that the coil line is connected with the printed circuit board for applying power from an external source to the coil outside of the internal space of the bracket. | 12-29-2011 |
20120032534 | LINEAR VIBRATOR - Disclosed herein is a linear vibrator, including: a stator including a coil; and a vibrator including a magnet opposite to the coil, wherein the linear vibrator is linearly vibrated due to electromagnetic induction of the coil and the magnet, the magnet is formed in a disc shape in which a cut part is formed by cutting a portion thereof, a magnetic fluid band is formed on an outer peripheral surface of the magnet, and a portion of the magnetic fluid band is in contact with the coil. According to the present invention, there is provided the linear vibrator capable of suppressing weak vibration generated at the time of external impact or movement, previously preventing noise generated as the vibrator applies an impact to the stator due to excessive vibration, and minimizing attenuation of the linear vibration quantity as the cut part that is formed by cutting a portion of the magnet to form the air gap with the coil. | 02-09-2012 |
20120032535 | Linear Vibrator - A linear vibrator is disclosed, characterized by: a housing; a stator fixed inside the housing; a vibrating unit formed with an opening for surrounding the stator and vibrating inside the housing by being interactive with the stator; and an elastic member elastically supporting the vibrator inside the housing, whereby the vibrating unit is vibrated in the width direction to enable a reduced thickness of the housing. | 02-09-2012 |
20120056499 | Electrical Energy Generator - An electrical energy generator that converts kinetic energy harvested from voluntary motor activity of a human or animal to electrical energy. The electrical energy generator includes a housing, a coil of electrically conductive material, a reciprocally movable electromagnetically active mass, springs connecting the mass to either the housing or to adjustment means engaged with said housing, and, optionally, means for constraining non-linear motion of the electromagnetically active mass, and/or means of mitigating motion retardation of the electromagnetically active mass within any existing housing atmosphere. The electrical energy generator may be associated with a carried item, such as a backpack. | 03-08-2012 |
20120074796 | LINEAR OSCILLATORY ACTUATOR - A linear oscillatory actuator includes a magnetic pole forming portion that includes an electromagnet and a base, magnetic blocks each of which includes a magnet attracted or repelled by the electromagnet to reciprocate, elastic suspensions for supporting the magnetic blocks, and at least one coupling spring portion that couples the magnetic blocks reciprocatably. Each of the elastic suspension includes upper and lower extending portions, and elastic planar portions integrally provided between the upper extending portions and the lower extending portions, respectively. Depressed portions are formed at continuous portions between the upper extending portions and the elastic planar portions, respectively, and each of the depressed portions is depressed toward the magnetic blocks. While the magnetic blocks reciprocate, Stress concentration on the continuous portions can be mitigated by the depressed portions. Therefore, the elastic planar portions can be prevented from being damaged without becoming large in size. | 03-29-2012 |
20120080959 | Linear vibrator - There is provided a linear vibrator according to an exemplary embodiment of the present invention, including: a fixing unit providing an internal space having a predetermined size; a plurality of magnets disposed in the internal space of the fixing unit and positioned to have the same poles face each other so as to generate magnetic force; a vibration unit disposed to face the magnets and including a coil generating electromagnetic force through interaction with the magnets and a vibrating mass body; and an elastic member joined to the fixing unit and the vibration unit to provide elastic force. | 04-05-2012 |
20120104874 | VIBRATING-TYPE ELECTROMAGNETIC GENERATOR - A vibrating-type electromagnetic generator includes a substrate, a metal wire, and a magnetic member. The substrate includes a vibrating arm member and an opening disposed on the vibrating arm member; the metal wire is configured on the substrate and is passed around the opening, and has a first electrode end and a second electrode end; and the magnetic member is configured in the opening, in which when the vibrating arm member receives an external force, the metal wire induces an electric energy with the magnetic member through vibration of the vibrating arm member, and outputs the electric energy through the first electrode end and the second electrode end. | 05-03-2012 |
20120104875 | Linear Vibrator - Disclosed is a linear vibrator, the linear vibrator including a stator having first and second coil blocks coupled to a bottom plate of a casing, a vibrator having a magnet disposed at a position corresponding to the first and second coil blocks, and an elastic member elastically supporting the magnet. | 05-03-2012 |
20120119595 | Linear vibrator - Disclosed is a linear vibrator including a fixing part providing an inner space of a predetermined size, at least one magnet disposed in the inner space of the fixing part to generate a magnetic force, a vibration part including a coil disposed to face the magnet to generate electromagnetic force by interacting with the magnet and a vibrating mass body, an elastic member coupled to the fixing part and the vibration part to provide an elastic force, and a substrate coupled to the vibration part and including a through hole through which the magnet passes to prevent the substrate from contacting the magnet when the vibration part is vibrated. | 05-17-2012 |
20120133219 | APPARATUS FOR GENERATING VIBRATIONS - There is provided an apparatus for generating vibrations, including: a housing forming an internal space; a flexible member disposed in the internal space of the housing and made of a soft material; a magnetic field unit disposed to be opposite to the flexible member and including a yoke having a magnet mounted therein to be moved, the magnet electromagnetically interacting with a coil; and a damper provided in the internal space of the housing to be disposed outside the coil and reducing movement sound generated due to the tilting of the yoke during upward and downward movement of the yoke. | 05-31-2012 |
20120133220 | APPARATUS FOR GENERATING VIBRATIONS - Disclosed is an apparatus for generating vibrations. The apparatus for generating vibrations includes a housing forming an internal space; a flexible member mounted in the internal space of the housing and made of a soft material, a magnetic field unit disposed to be opposite to the flexible member and including a yoke having a magnet mounted therein to be moved, the magnet electromagnetically interacting with the coil, and a damper suppressing generation of movement sound during movement of the yoke together with the flexible member. | 05-31-2012 |
20120146433 | LINEAR VIBRATOR - Disclosed herein is a linear vibrator for generating vibration in a mobile communication terminal, a portable terminal, and a photographing apparatus, including: a stator part including a bracket, coils connected to the bracket and a printed circuit board connected to the bracket and applying power to the coils; and a vibrator part configured of a magnet opposite to the coils, a yoke connected to the magnet and a weight body connected to the yoke, wherein the weight body has a cutting part formed by cutting a portion thereof. | 06-14-2012 |
20120153748 | VIBRATION GENERATOR - An elastic support member that supports a vibrator includes a first elastic deformation portion and a second elastic deformation portion that are integrally formed from a leaf spring material. When the first elastic deformation portion bending-deforms in an X direction, the vibrator vibrates in the X direction. When the second elastic deformation portion bending-deforms in a Z direction, the vibrator vibrates in the Z direction. The elastic modulus of the second elastic deformation portion is higher than the elastic modulus of the first elastic deformation portion. A magnetic core and a coil are provided in the vibrator, and a magnet is provided on the case side. Driving signals of different frequencies are applied to the coil, and the vibrator resonates at a low vibration frequency in the X direction that is a first direction and resonates at a high vibration frequency in the Z direction that is a second direction. | 06-21-2012 |
20120169148 | LINEAR VIBRATION MOTOR - Disclosed herein is a linear vibration motor, including: a fixing part, a vibrator part vibrating in a horizontal direction, and an elastic member coupled with the outer side of the vibrator part and a round-shaped bending part to elastically support the fixing part opposite to the vibrator part linearly vibrating in a horizontal direction. | 07-05-2012 |
20120169149 | LINEAR VIBRATION MOTOR - Disclosed herein is a linear vibration motor. The motor includes a stator and a vibrator. The stator includes a magnet. The vibrator includes a coil facing the magnet. A weight is coupled to the coil. A PCB is connected to the coil and the stator. An elastic member is coupled to stator and the coil. A damper is provided on the weight at a position facing the elastic member. The damper may be provided between the elastic member and the weight or between the elastic member and the inner surface of a casing. The damper can mitigate metallic high frequency noise attributable to friction between the elastic member and the weight or between the elastic member and the casing. Furthermore, the spatial utilization is increased, thereby enhancing the degree of freedom in designing the linear vibration motor. | 07-05-2012 |
20120169150 | LINEAR VIBRATION MOTOR - Disclosed herein is a linear vibration motor including: a fixing part including a magnet; and a vibrator part including a coil corresponding to the magnet and a printed circuit board coupled with the coil, wherein one end of the printed circuit board is coupled with the fixing part and the other end thereof is coupled with the coil. | 07-05-2012 |
20120169151 | LINEAR VIBRATION DEVICE - A linear vibration device is disclosed. The linear vibration device includes a housing, a plurality of elastic members received in the housing, each of the elastic member has a fastening portion connecting to the housing, an elastic arm extending from the fastening portion, and a mounting portion extending from the elastic arm, a moving unit suspended in the housing by the elastic members, a coil located below the moving unit, a supporting portion coupling to the elastic member, the supporting portion has a supporting plate covering at least a part of a top surface of the moving unit and a supporting arm extending downwardly from the supporting plate for pushing the mounting portion toward the positioning portion of the moving unit, the mounting portion has a fender defining a top part above the top surface of the moving unit for restricting the position of the supporting plate. | 07-05-2012 |
20120169152 | MULTIFUNCTIONAL ELECTROMAGNETIC TRANSDUCER - A multifunctional electromagnetic transducer includes a bracket, a vibrating unit including a magnetic circuit part receiving in the bracket, and a plurality of elastic members assembled to the bracket for sustaining the magnetic circuit part. The magnetic circuit part defines a pole plate, a first magnet disposed at a center portion of the pole plate, and a plurality of second magnets surrounding the first magnet and forming a magnetic gap corporately with the first magnet. Each of the second magnets forms a receiving gap corporately with an adjacent second magnet. Each of the receiving gap receives a weight therein. A voice coil is partially inserted into the magnetic gap. | 07-05-2012 |
20120169153 | STRUCTURE OF VIBRATION ACTUATOR - Provided is a vibration actuator the amplitude of which is increased without reducing the number and width of arms, even in a structure that supports a magnetic circuit section by a single suspension. Both increased amplitude and stabilized vibrating properties are achieved by using a structure in which the middle part of each arm of a suspension is provided with a bent portion in the planar direction, and the metal fatigue of the suspension produced when vibrating is reduced by incorporating the suspension in a state in which the suspension is deformed in advance in an expansion/contraction direction (i.e. the vibrating direction of said magnetic circuit section). Additionally, these advantages, which extend the life of the whole component, allow the component to be environmentally friendly. | 07-05-2012 |
20120187780 | APPARATUS FOR GENERATING VIBRATIONS - There is provided an apparatus for generating vibrations, the apparatus including: a lower case made of a non-magnetic material; a coil plate mounted on the lower case and made of a magnetic material so as to reduce magnetic force leakage; a coil mounted on the coil plate; and a motion element including a magnet disposed to be opposite to the coil such that an electromagnetic force is generated by interaction with the coil. | 07-26-2012 |
20120293022 | LINEAR VIBRATOR - Disclosed is a linear vibrator, the linear vibrator including: a case including a lower case and an upper case coupled to the lower case to form a space; a stator including a circuit substrate arranged on the lower case and a coil block electrically connected to the circuit substrate; a vibrator including a magnet facing the coil block and a weight secured to the magnet; and a back yoke including a back yoke unit securing the vibrator and a pair of symmetrically formed spring units integrally formed with the back yoke unit. | 11-22-2012 |
20120313459 | LINEAR VIBRATOR - A linear vibrator is disclosed. The linear vibrator includes a housing having a base and a cover, a number of elastic members connected to the housing, a vibrating unit suspended in the housing by the elastic members, and a coil positioned in the housing. The vibrating unit includes a pole plate received in a recess formed in the vibrating unit, and a damper positioned on the pole plate by magnetic flux. | 12-13-2012 |
20120319506 | LINEAR VIBRATION GENERATING APPARATUS - A linear vibration generating apparatus employed in a portable terminal is provided. The linear vibration generating apparatus includes a bracket, a coil inserted into the bracket, a stator inserted into the bracket and including a central yoke concentrically fixed to an interior space of the coil, a vibrator including a permanent magnet disposed to surround an outer periphery of the coil, and a resilient body fixed to the stator to support the vibrator. | 12-20-2012 |
20130002054 | LINEAR VIBRATION MOTOR - Disclose herein is a linear vibration motor including: a stator part including a coil having a power applied from the outside thereto to form a magnetic field; a vibrator part including a magnet facing the coil; and an elastic member having one end coupled to the stator part and the other end coupled to the vibrator part to elastically support linear vibration of the vibrator part, wherein the stator part includes: a cover member including a set fixing part extended to one side thereof to thereby be fixedly coupled to a set component and an extended plate extended to the other side thereof; an upper case coupled to an upper portion of the cover member so as to receive the vibrator part therein; a printed circuit board having the coil coupled thereto and coupled to the cover member and an upper portion of the extended plate; and a contact part fixedly coupled to an upper portion of the printed circuit board of which a portion is coupled to the extended plate. | 01-03-2013 |
20130002055 | LINEAR MOTOR FOR A SMALL ELECTRIC HANDHELD DEVICE - A handle for a small electric handheld appliance in which the handle comprises a motor assembly disposed in the handle. The motor assembly comprises a generally L-shaped magnetic yoke formed from two substantially perpendicular surfaces, such that the two substantially perpendicular surfaces define a concave receiving portion. The motor assembly also comprises an iron core and a coil winding disposed substantially in the concave receiving portion, such that the iron core and the coil winding are free from contact with one of the two substantially perpendicular surfaces when the motor is at rest. | 01-03-2013 |
20130026860 | VIBRATION-GENERATING DEVICE - Disclosed herein is a vibration-generating device. The vibration-generating device including: a stator including a case, a coil and a bracket; a vibrator including a weight body, a magnet, a yoke and a plate yoke; and an elastic member arranged at an upper portion of the vibrator, wherein the weight body includes a groove part formed in an upper portion thereof so as to be opposite to the elastic member. | 01-31-2013 |
20130033126 | LINEAR VIBRATION DEVICE - Disclosed herein is a linear vibration device including: a stator that includes magnets, a bracket, and a case having an inner space formed therein and coupled to the bracket; and a vibrator that includes a coil facing the magnets, a weight body coupled to the coil, a flexible printed circuit (FPC) coupled to a lower portion of the weight body, and an elastic member having one end coupled to the case and the other end coupled to the coil and is received in the case, wherein the magnets are disposed at a lower portion of the coil of the vibrator and include a first magnet having a magnetic fluid applied to a lower portion thereof and a second magnet facing the first magnet and coupled to an upper side of the case. | 02-07-2013 |
20130033127 | LINEAR VIBRATION DEVICE - Disclosed herein is a linear vibration device. The linear vibration device includes a stator including magnets, a bracket, and a case having an inner space formed therein and coupled with the bracket; and a vibrator including coils facing the magnets, a weight body coupled with the coil, an FPC coupled with a top portion of the weight body, and an elastic member of which the one end is coupled with the case and the other end is coupled with the coil, the vibrator being accommodated in the case, wherein the magnets include a first magnet and a second magnet facing the first magnet, coupled with a top surface of the bracket, and including a magnetic fluid applied to a bottom portion and a side portion thereof. | 02-07-2013 |
20130033128 | LINEAR VIBRATION MOTOR - Disclosed herein is a linear vibration motor including: a stator part including a coil, a printed circuit board coupled to the coil, a bracket having the printed circuit board fixedly coupled thereto, and a case having an internal space formed therein and coupled to the bracket; and a vibrator part including a main magnet positioned to face the coil, a yoke coupled to the magnet, a weight body coupled to an outer peripheral surface of the yoke, and an elastic member having one end coupled to the case and the other end coupled to the yoke, wherein the stator part further includes sub-magnets, which are magnetic damping units, the sub-magnets being disposed to face the main magnet of the vibrator part and being mounted in the stator part so that surfaces thereof facing the main magnet have the same polarities as those of the main magnet. | 02-07-2013 |
20130033129 | LINEAR VIBRATION DEVICE - Disclosed herein is a linear vibration device including: a stator assembly including a plate and a case; and a vibrator assembly including a yoke and a spring, wherein the case of the stator | 02-07-2013 |
20130057088 | LINEAR VIBRATOR - There is provided a linear vibrator, including a fixed part having an inner space of a predetermined size formed therein; at least one magnet disposed in the inner space and generating magnetic force; a vibration part including a coil disposed to face the magnet to generate electromagnetic force through interaction therewith, and a mass body; a substrate having one end connected to the vibration part to serve as a free end, and the other end connected to the fixed part to serve as a fixed end; and a connection protrusion formed on the fixed part and inserted into a connection hole formed in the substrate so as to allow the substrate to be fixed to the fixed part. | 03-07-2013 |
20130069452 | LINEAR VIBRATOR - There is provided a linear vibrator. The linear vibrator includes a fixed part providing an interior space having a predetermined size; at least one magnet disposed in the interior space and generating magnetic force; a vibration part including a coil facing the magnet and generating electromagnetic force through interaction with the magnet and a mass body; and a substrate having one end coupled to the vibration part to thereby serve as a free end, and the other end including a copper foil pattern portion coupled to the fixed part to thereby serve as a fixed end. | 03-21-2013 |
20130076162 | Suspension Member for a Vibration Actuator - A resilient suspension member for suspending a mass element of a vibration actuator. The suspension member is configured to extend elastically, providing a tensional restoring force, when the mass is displaced. The suspension member is formed of a silicone rubber. | 03-28-2013 |
20130082546 | LINEAR VIBRATION MOTOR - Disclosed herein is a linear vibration motor including: a stator part; a vibrator part received in the stator part to thereby linearly vibrate; an elastic member having one end fixedly coupled to the stator part and the other end fixedly coupled to the vibrator part, wherein the vibrator part includes a printed circuit board having one end fixedly coupled to the stator part and the other end fixedly coupled to the vibrator part to thereby linearly vibrate integrally with the vibrator part. | 04-04-2013 |
20130088100 | LINEAR VIBRATOR - There is provided a linear vibrator, including: a fixed part providing an interior space having a predetermined size; at least one magnet disposed in the interior space and generating magnetic force; a vibration part including a coil facing the magnet and generating electromagnetic force through interaction with the magnet and a mass body; and an elastic member coupled to the fixed part and the vibration part to mediate vibrations of the vibration part and having a damping increasing portion attached to a predetermined region of a surface thereof. | 04-11-2013 |
20130099602 | LINEAR VIBRATOR - A linear vibrator is disclosed, the linear vibrator including a case providing an inner space, a stator including a circuit board arranged on the case and a coil block electrically connected to the circuit board, an integral spring including a plate opposite to the circuit board and springs vibratingly fixing both distal ends of the plate to the case, a yoke arranged on the integral spring in opposition to the circuit board, and a vibrator including a weight coupled to the yoke and a magnet coupled to the weight in opposition to the coil block. | 04-25-2013 |
20130099603 | LINEAR VIBRATOR - A linear vibrator is disclosed, comprising: a case including a bottom-opened upper case and a plate-shaped bottom case coupled to the upper case to form an accommodation space; a stator including a circuit substrate arranged at an inner lateral surface of the bottom case and a cylindrical coil block arranged on the circuit substrate to receive a driving signal; and a vibrator including a first magnet arranged inside the coil block to generate a first magnetic flux to an axial direction of the coil block, a second magnet arranged outside of the coil block to generate a second magnetic flux to a direction facing the coil block, a yoke fixing the first and second magnets, and an elastic member elastically fixing the yoke to the upper case. | 04-25-2013 |
20130119787 | LINEAR VIBRATION DEVICE - The present invention provides a linear vibration device in which a PCB is coupled to a bracket having an extension piece protruding at a peripheral portion thereof to transfer an external electrical signal to a coil and a yoke of a stator is installed on an upper surface of the PCB to be coupled to the coil, in order to maximally generate an electromagnetic force in one direction. In addition, an upper plate and a lower plate are configured to concentrate a magnetic field of a magnet configured to create a magnetic field corresponding to an electromagnetic force of the yoke formed by the coil to one direction. Accordingly, a vibrating body includes a vibrator which is operated upward and downward in response to an electromagnetic force concentrated by the yoke, increasing vibration feelings due to the upward and downward movement thereof. | 05-16-2013 |
20130119788 | MOVABLE IRON CORE LINEAR ACTUATOR - There is provided a movable iron core linear actuator, which includes a magnetic circuit which causes a moving element to reciprocate. The magnetic circuit includes an iron core constituting the moving element, a stator core including a facing portion which faces the iron core, a pair of permanent magnets disposed in the facing portion along a reciprocating direction and having inverted magnetic poles at their surfaces which face the iron core, and a coil wound around the stator core. Energization to coil causes the moving element to reciprocate. When the coil is energized, the spring force of magnetic spring which changed in accordance with a relative position of the moving element with respect to the stator core is superimposed on the electromagnetic driving force produced by the energization of the coil and is applied to the moving element by the magnetic flux produced by the permanent magnets. | 05-16-2013 |
20130134804 | LINEAR VIBRATION MOTOR - Disclosed herein is a linear vibration motor including: a stator part including a magnet; a vibrator part including a coil disposed to face the magnet; and an elastic member connecting the stator part and the vibrator part to each other, wherein the elastic member includes bending parts formed in connection parts thereof connected to the stator part and the vibration part in a vibration direction of the vibrator part. | 05-30-2013 |
20130140918 | LINEAR VIBRATION MOTOR - Disclosed herein is a linear vibration motor including: a stator part including a magnet; a vibrator part including a coil facing the magnet to generate electromagnetic force and a printed circuit board having one end coupled to the stator part and the other end coupled to the coil; and an elastic member connecting the stator part and the vibrator part to each other, wherein the stator part further includes a damper facing the vibrator part. The damper is made of a rubber material having lower density in order to alleviate and absorb impact at the time of contact with the vibrator part, thereby making is possible to prevent vibration noise due to residual vibration generated at the time of contact between the vibrator part and the stator part. | 06-06-2013 |
20130154403 | VIBRATOR - There is provided a vibrator, including: a case having an inner space; a vibration generating part mounted in the case and generating vibrations by power supplied thereto; and a resonance part resonated by the vibrations generated in the vibration generating part. | 06-20-2013 |
20130169071 | OSCILLATING ACTUATOR - An oscillating actuator comprising a shaft, arranged along an axis of oscillation of a housing, having both ends fixed to end walls provided at both ends of the housing; a movable element having a magnet adapted to pass the shaft therethrough and movable in an extending direction of the shaft and a weight arranged adjacent to the magnet in the extending direction of the shaft, adapted to pass the shaft therethrough, and movable integrally with the magnet; and an elastic member, arranged between the movable element and the end wall, for urging the movable element in the oscillation axis direction; wherein the coil comprises first and second coils wound annularly about the axis of oscillation and disposed in parallel with each other in the oscillation axis direction, the first and second coils having respective current flowing directions different from each other. | 07-04-2013 |
20130193780 | ACTUATOR AND ELECTRICAL BEAUTY APPLIANCE - An actuator includes a fixed section that includes a spindle and a coil fixed to the spindle, a first movable section that includes a first magnet magnetized in an inside-outside direction and disposed to cover the outer peripheral surface of one end in an axial direction of the fixed section, that is mounted on the spindle in an elastically-maintained state, and that is movable in the axial direction, and a second movable section that includes a second magnet magnetized in the inside-outside direction and disposed to cover the outer peripheral surface of the other end in the axial direction of the fixed section, that is mounted on the spindle in an elastically-maintained state, and that is movable in the axial direction. When current flows in the coil, the first movable section and the second movable section move in the opposite directions. | 08-01-2013 |
20130200732 | VIBRATION MOTOR AND MOBILE TERMINAL HAVING THE SAME - A vibration motor includes a housing, a coil, a moving portion, an elastic member and a roller member. The housing has a top surface, a bottom surface, and first to fourth side surfaces joining the top surface to the bottom surface, the first to fourth surfaces defining an inner circumferential surface of the housing. The coil is provided in the housing. The moving portion provided in the housing and the moving portion is configured to reciprocate between the first and third sides arranged opposite to each other. The elastic member is provided between the moving portion and the housing. The roller member is provided in the housing and arranged to come into rolling contact with the top or bottom surface of the housing. | 08-08-2013 |
20130229070 | VIBRATION GENERATOR - A vibration generator includes a housing, a vibrating body arranged inside of a circumferential wall portion of the housing, and a band-like leaf spring arranged between the vibrating body and the circumferential wall portion. The leaf spring includes a connection portion connected to the vibrating body, an attachment portion attached to the circumferential wall portion of the leaf spring and an intermediate portion formed between the connection portion and the attachment portion to extend around the vibrating body. The connection portion and the attachment portion are arranged at one transverse side and the other transverse side of the vibrating body along a direction intersecting a vibration direction of the vibrating body. The intermediate portion is arranged in a vibration-direction outer region of the vibrating body and formed in a single layer to extend across the vibration direction of the vibrating body. | 09-05-2013 |
20130241321 | VIBRATION GENERATOR - A vibration generator includes a circumferential wall portion, a vibrating body arranged inside the circumferential wall portion in an opposing relationship with a coil and configured to reciprocatingly vibrate in one direction, a band-shaped leaf spring arranged between the vibrating body and the circumferential wall portion to support the vibrating body on the circumferential wall portion, and a damper member including a base portion attached to one of the vibrating body and the leaf spring and a tip end portion extending toward the other of the vibrating body and the leaf spring. The tip end portion of the damper member makes sliding contact with the leaf sprig or the vibrating body. | 09-19-2013 |
20130241322 | LINEAR VIBRATOR - A linear vibrator being used in a mobile phone is provided. The linear vibrator includes a ring-shape permanent magnet in the outside of a cylindrical coil, and the poles of the permanent magnet are divided into the inside of the permanent magnet facing the coil and the outside of the permanent magnet in a direction opposite to the inside of the permanent magnet. Accordingly, efficiency can be improved, a size can be reduced, and productivity and durability can be improved. | 09-19-2013 |
20130249325 | LINEAR VIBRATOR HAVING BROADBAND - A linear vibrator is disclosed having a structure capable of generating a large vibratory force with a small size, outputting various types of vibrations in a wide bandwidth, and accurately coupling the magnet, the linear vibrator including: a case providing an inner space; a trembler including a yoke formed with a circular plate-shaped wing unit, a one inner lateral end-closed, cylindrical insertion unit bent from the wing unit to have a stair, an inner magnet coupled by being inserted into the insertion unit, and an external magnet coupled to one surface of the wing unit; an elastic member fixed at one end to the case and fixed at the other end to the trembler; and a stator fixed to the case to vibrate the trembler. | 09-26-2013 |
20130278084 | VIBRATION GENERATOR - A vibration generator includes a coil, a vibrating body, a spring, and a shaft. The coil is arranged to generate magnetic fields. The vibrating body includes a magnet and a weight. The vibrating body is arranged to be vibrated in a thrust direction by an interaction of magnetic fields generated from the magnet and magnetic fields generated from the coil. The spring is arranged to support the vibrating body at one thrust-direction side of the vibrating body. The shaft is extended in the thrust direction through the vibrating body. The shaft is arranged to allow the vibrating body to slide along the shaft in the thrust direction. | 10-24-2013 |
20130300219 | Electromechanical Generator for Converting Mechanical Vibrational Energy into Electrical Energy - An electromechanical generator for converting mechanical vibrational energy into electrical energy. The electromechanical generator has a housing and an electrically conductive coil assembly movably mounted in the housing. The coil assembly has radially inner and outer sides, and upper and lower edges. A mount for the coil assembly extends inwardly of the radially inner side for mounting the coil assembly for linear vibrational motion along an axis. A first biasing device is mounted between the housing and the mount to bias the electrically conductive coil assembly in opposed directions along the axis towards a central coil position, a magnetic core assembly is movably mounted in the housing for linear vibrational motion along the axis, and a second biasing device is mounted between the housing and the magnetic core assembly to bias the magnetic core assembly in opposed directions along the axis towards a central magnet position. | 11-14-2013 |
20130313919 | VIBRATOR FOR PERFORMING RECIPROCATORY MOVEMENT TO GENERATE VIBRATION, AND VIBRATION GENERATOR - A vibrator includes a frame, a swing unit, and an elastic member. The swing unit is disposed within the frame and holds a magnet. The elastic member connects the swing unit and the frame. The swing unit is movable with respect to the frame while deforming the elastic member. The frame, the swing unit, and the elastic member are integrally molded with each other. | 11-28-2013 |
20130342034 | LINEAR VIBRATOR - There is provided a linear vibrator including: a fixed part including a case open at one side thereof and providing an internal space therein and a bracket coupled to the case; a vibrating part disposed in the internal space and including a magnet having a hollow part and a mass body coupled to an outer peripheral surface of the magnet; an elastic member having one end coupled to the vibrating part and the other end coupled to the fixed part; a shaft having upper and lower portions fixed to one surface of the case and the bracket, respectively, and penetrating through the hollow part of the magnet; a coil provided on an outer peripheral surface of the shaft and generating electromagnetic force; and a bush disposed on the coil and concentrating the electromagnetic force generated therein in a single direction. | 12-26-2013 |
20130342035 | LINEAR VIBRATOR - There is provided a linear vibrator, including: a housing providing an internal space; an electromagnet having one end fixed to the housing so as to be disposed in the internal space; a vibrating part including a magnet facing the electromagnet and interacting therewith; an elastic member having one end fixed to the housing and the other end fixed to the vibrating part and elastically supporting the vibrating part during vibrating thereof; and a separation prevention member interposed between the other end of the electromagnet and the housing. | 12-26-2013 |
20140001889 | LINEAR VIBRATION MOTOR | 01-02-2014 |
20140054981 | Ultrathin electromagnetic vibration device and its manufacturing method - An ultrathin electromagnetic vibrating device and its manufacturing method, wherein the ultrathin electromagnetic vibrating device includes: a base frame, a vibrating reed, a set of surrounds, a voice coil and a magnetic circuit system, wherein the surrounds include an upper surround and a lower surround, respectively connected with an upper surface and a lower surface of the vibrating reed to fixedly connecting the vibrating reed with a base of the base frame. Due to an application of the lower surround to form a combined action of the upper and lower surround, the vibrating reed is only able to keep vibrating up and down vertically, a first end of the voice coil is fixedly provided on the lower surface of the vibrating reed, similarly, while a stroke of the voice coil drives the vibrating reed to vibrate up and down vertically, the voice coil achieves an up-and-down vertical stroke. | 02-27-2014 |
20140054982 | BROADBAND LINEAR VIBRATOR AND MOBILE TERMINAL - A broadband linear vibrator that is small sized and yet capable of generating a greater vibrating force and outputting various broadband vibrations, and a mobile terminal capable of outputting various vibrations and sounds, wherein the broadband linear vibrator includes a case; a spring coupled to the case; an oscillator including a magnet for elastically supporting the spring and a stator formed inside the case for vibrating the oscillator, wherein a frequency band to a maximum use frequency that is detectable as a vibration or a sound source based on a resonant frequency is 1.2 times than a frequency band to a minimum use frequency, such that various feelings of vibrations and sounds can be advantageously provided by the broadband linear vibrator. | 02-27-2014 |
20140070633 | LINEAR VIBRATOR - There is provided a linear vibrator including: a fixed part having an internal space of a predetermined size provided therein; a magnet coupled to one surface of the internal space of the fixed part and generating magnetic force; a vibrating part including a coil disposed to face the magnet and interacting with the magnet to generate electromagnetic force and a mass body vibrated by the electromagnetic force; and a holder provided between the coil and the mass body and having one edge and the other edge extended in an inner radial direction. | 03-13-2014 |
20140084710 | VIBRATION ACTUATOR - A cylindrical magnet of an oscillating actuator includes a plurality of divided magnet portions which are magnetized in the radial direction. Since adjacent magnet portions have different poles in the direction of an oscillation axis, magnetic poles do not repel each other when adhering the magnet portions and it is thus easy to adhere the magnet portions to each other. In addition to this construction of the magnet, a coil includes a plurality of divided coil portions corresponding to the magnet portions in the direction of the oscillation axis, and adjacent coil portions are wound in opposite directions to each other. | 03-27-2014 |
20140103750 | Vibrator - A vibrator includes a substrate, a coil supported to the substrate and a vibrator member disposed in opposition to the coil and capable of vibrating along the axial direction of the coil. The vibrator member includes a weight, a magnet polarized along the axial direction of the coil, and a supporting member for supporting the magnet with allowing displacement thereof along the axial direction of the coil. | 04-17-2014 |
20140103751 | POWER GENERATOR - A power generator | 04-17-2014 |
20140117787 | LINEAR VIBRATOR - A linear vibrator including: a fixing unit having a magnet in an inner space, the magnet generating magnetic force; a vibration unit including a coil disposed to face the magnet and generating electromagnetic force by interaction with the magnet, and a holder coupled with a surface of the coil and fixedly supporting a mass body which vibrates; and an elastic member coupled with the holder and the fixing unit and providing elastic force to the vibration unit | 05-01-2014 |
20140125151 | POWER GENERATOR - A power generator | 05-08-2014 |
20140152126 | HORIZONTAL LINEAR VIBRATOR - The present invention provides a horizontal linear vibrator which can reduce the thickness but increase vibration strength while at the same time guaranteeing a sufficiently long lifetime and satisfactory responsivity. The horizontal linear vibrator includes a casing, a bracket, a vibration unit and springs. The casing defines an internal space therein. The bracket is disposed under the casing. A cylindrical coil is provided on the bracket. The vibration unit has a magnet, a yoke and a weight. The yoke contains the magnet therein and is open on the lower end thereof. The weight is coupled to the outer surface of the yoke. The springs are coupled to sidewall plates of the casing or the bracket. The springs elastically support the vibration unit to allow the vibration unit to vibrate in the horizontal direction. | 06-05-2014 |
20140232211 | LINEAR VIBRATION ACTUATOR AND MOBILE COMMUNICATION DEVICE OR GAMING DEVICE INCLUDING THE SAME - A linear vibration actuator for which the positional accuracy of coils in the casing can be easily increased. A linear vibration actuator ( | 08-21-2014 |
20140252890 | VIBRATION GENERATION DEVICE - A vibration generation device is provided. The device includes a casing configured to have a receiving space in the casing, a coil received in a receiving space of the casing and configured to have an externally supplied current flow through the coil, a vibrator received in the receiving space of the casing, configured to comprise a magnet and a yoke surrounding the magnet, and disposed over the coil so that the vibrator is vibrated under an influence of a magnetic field through an interaction with the coil, and an elastic member received in the receiving space of the casing, disposed under the vibrator, and configured to elastically support the vibrator. There are advantages in that biased vibration can be improved because the elastic member and the yoke can be fixed at several places, a sufficient space where the elastic member can be vibrated can be secured because the elastic member is configured under the magnetic circuit. | 09-11-2014 |
20140265650 | HORIZONTAL LINEAR VIBRATOR - There is provided a horizontal linear vibrator including a housing, a mass member movably mounted within the housing in a length direction thereof, a coil member mounted in the housing, a magnet member mounted in the mass member and interacting with the coil member to generate a magnetic field so as to enable movement of the mass member, an elastic member mounted in the housing and applying force in the same direction as or an opposite direction to a moving direction of the mass member, and a bearing member disposed between the mass member and the housing to enable a sliding motion of the mass member relative to the housing. | 09-18-2014 |
20140265651 | VIBRATOR AND ELECTRONIC DEVICE INCLUDING THE SAME - There are provided a vibrator and an electronic device including the same, the vibrator including a housing having an internal space; a shaft included in the internal space; a vibrating part suspended in the internal space by elastic members at both ends thereof, including a magnetic field part, and having a bearing member slidably and movably installed on the shaft; and a coil generating vibrations of the vibrating part through electromagnetic interaction with the magnetic field part and provided on an outer peripheral surface of the shaft while facing the magnetic field part. | 09-18-2014 |
20140306556 | HOUSING AND VIBRATING DEVICE INCLUDING THE SAME - There is provided a housing, including: a case formed in a longitudinal direction, having an opening on one side, and having an internal space; and a bracket coupled to the opening on the one side of the case; wherein the case has a protrusion formed at the opening and protruding in the longitudinal direction of the case. | 10-16-2014 |
20140346901 | MINIATURE LINEAR VIBROTACTILE ACTUATOR - The invention relates to a miniature linear vibrotactile actuator comprising: a first element | 11-27-2014 |
20150015091 | ACTUATOR FOR DAMPING LOW-FREQUENCY OSCILLATIONS - An actuator has an electrically conductive coil which has a longitudinal axis and windings through which a current can flow. The coil is surrounded by a highly permeable first ferromagnetic body so that the first body has projections of highly permeable ferromagnetic material above and below the coil in the longitudinal direction. The actuator has a magnet spaced apart from the coil so that a gap forms therebetween. The magnet is surrounded by a highly permeable second ferromagnetic body so that the second body has projections of highly permeable ferromagnetic material above and below the magnet in the longitudinal direction. The magnet is statically mounted with the second body and the coil is spring mounted with the first body so that the coil and first body oscillate in the longitudinal direction when an alternating current flows through the coil. The coil is outside the magnet perpendicular to the longitudinal axis. | 01-15-2015 |
20150084443 | HIGH ENERGY DENSITY VIBRATION ENERGY HARVESTING DEVICE WITH HIGH-MU MATERIAL - The present disclosure describes a vibration energy harvester with increased output power density. The vibration energy harvester has two magnetic solenoids, each with cores that include multiple layers of high permeability materials. The two magnetic solenoids are fixed at two sides of a movably supported hard magnetic core, such as a magnet pair with anti-parallel magnetization, which produces a spatially inhomogeneous bias magnetic field for switching the flux inside the solenoids during vibration of the magnetic core. An output voltage of 2.52 V and a power density 20.84 mW/cm3 at 42 Hz, with a half peak working bandwidth of 6 Hz. | 03-26-2015 |
20150108854 | ELECTRONIC DEVICE - An electronic device includes a housing having a plurality of surfaces and a plurality of vibration portions provided in the housing so as to be in contact with at least one of the plurality of surfaces. The plurality of vibration portions include a first vibration portion, which vibrates at a frequency included in a first frequency band, and a second vibration portion, which vibrates at a frequency included in a second frequency band that is different from the first frequency band. | 04-23-2015 |
20150123498 | LINEAR VIBRATOR AND PRODUCTION METHOD THEREFOR - Disclosed herein is a vibration generator which is used to embody vibration for signal reception indication or a haptic function of wireless communication devices such as mobile phones. The vibration generator includes a casing which has a space therein, a stator which is provided in the casing and is provided with a coil along which current flows, a vibrator which is provided in the casing and is horizontally moved by electromagnetic force, an elastic body which is fixed at a first end thereof to the casing and fixed at a second end thereof to the vibrator, and a residual vibration reducer which is provided between the vibrator and the casing to absorb vibration of the vibrator. Therefore, after the vibration of the vibrator is stopped, the time it takes to stop movement of the vibrator can be markedly reduced. | 05-07-2015 |
20150123499 | LINEAR VIBRATOR - A linear vibrator includes a housing providing an internal space; a fixed part including a coil fixed to the housing to be disposed in the internal space; a vibrating part including a magnet disposed to face the coil and generating electromagnetic force by interacting with the coil; and an elastic member having one end fixed to the housing and the other end fixed to the vibrating part to elastically support the vibrating part, wherein the elastic member includes a first fixed part fixed to the housing, a second fixed part fixed to the vibrating part, and a deformable part connecting the first fixed part and the second fixed part to each other and elastically deformed, and the first fixed part includes a welded part being welded and coupled to the housing at the outside of a portion of the first fixed part to which the deformable part is connected. | 05-07-2015 |
20150123500 | HAPTIC ACTUATOR - An haptic actuator includes: a base member; a hollow cylindrical coil arranged in the upper portion of the base member; a core formed in the base member and arranged so as to be inserted into the center of the coil; a cover member covering the upper portion of the base member; a vibration plate mounted on the cover member, arranged in the upper portion of the core, and moving in the vertical direction; and a vibration unit coupled to the vibration plate and spaced apart from the upper portion of the core. The vibration plate has a mounting portion fixedly mounted on the central area of the cover member and a coupling portion formed so as to extend from the mounting portion and be bent in the downward direction. The vibration unit has a permanent magnet coupled to the coupling portion and spaced apart from the core. | 05-07-2015 |
20150130297 | ENERGY HARVESTING DEVICE - An energy harvesting device comprises a semiconductor device, a first magnet core, and at least one second magnet core. The semiconductor device, disposed in a housing, includes a plurality of first sensors and a plurality of second sensors. The first magnet core, disposed over the semiconductor device, is configured to establish a magnetic field between the first sensors and move with respect to the semiconductor device. The at least one second magnet core, disposed between an inner wall of the housing and the semiconductor device, is configured to establish a magnetic field between the second sensors and move with respect to the semiconductor device. | 05-14-2015 |
20150130298 | VIBRATION POWER GENERATOR - The vibration power generator includes: a plurality of permanent magnets ( | 05-14-2015 |
20150137627 | VIBRATION ACTUATOR AND MOBILE INFORMATION TERMINAL - A vibration actuator has a stationary element including a frame, a coil, and a movable element having a magnet and a weight portion. The movable element vibrates in a vibration direction relative to the stationary element. The vibration actuator includes a sliding support member, provided within the frame, extending parallel to the vibration direction at a distance relative to the magnet. The movable element is supported slidably on the sliding support member and relative to the stationary element. | 05-21-2015 |
20150137628 | Vibration Actuator - A vibration actuator includes: a coil having a vibration space along an axial direction; an outer case that covers the coil and that extends the vibration space in the axial direction; a movable element that comprises a magnet that vibrates within the coil and a weight unit that vibrates within the outer case and that is connected to one end side, in the axial direction, of the magnet; and an elastic member that supports elastically the vibration of the movable element in the axial direction. A resin layer is secured to an outer peripheral surface of the weight unit that faces an inner surface of the outer case. An oil film is interposed between the resin layer and the inner surface of the outer case. | 05-21-2015 |
20160013710 | LINEAR VIBRATION MOTOR | 01-14-2016 |
20160094115 | LINEAR ACTUATOR, ELECTRIC BRUSH, ELECTRIC CUTTING MACHINE AND ELECTRIC AIR PUMP - A linear actuator that can achieve downsizing with a simple configuration, and can provide stable linear reciprocation while achieving improvement in assemblability and cost reduction. In the actuator, movable member | 03-31-2016 |
20160105089 | Linear Vibrator - An apparatus comprising: a resonance module located within a resonator frame, the resonance module comprising at least two integrated conductive suspension parts, the at least two integrated conductive suspension parts being configured to couple the resonance module to the frame, and further configured to provide a current through the resonance module, wherein the at least two integrated conductive suspension parts enable the resonance module to resonate. | 04-14-2016 |
20160172950 | LINEAR VIBRATION GENERATING DEVICE | 06-16-2016 |
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20180021812 | VIBRATION MOTOR | 01-25-2018 |
20180026506 | Vibration Motor | 01-25-2018 |