Class / Patent application number | Description | Number of patent applications / Date published |
310028000 | Direct-connected | 81 |
20080272659 | Electro-Magnetic Force Driving Actuator and Circuit Breaker Using the Same - An electromagnetic force driving actuator and a circuit breaker using the same is disclosed. The actuator comprises a casing that forms two paths having a certain length in longitudinal direction, and forms a middle wall by the two paths; a main magnetic field generation element that is allocated on the both face wall of the two paths of the casing; and a moving element that, as the middle wall is located in the center, a coil, which is bound in the orthogonal direction to longitudinal direction of the paths, is in a body that its left and right sides passes through the paths and its front and back side are exposed to outside, when forward direction or reverse direction current is provided in the coil, moves forward and backward along the longitudinal direction of the paths. | 11-06-2008 |
20080284259 | Linear Actuator - A linear actuator is provided with a rotor and a stator. The rotor comprises at least two stacks of permanently magnetic rods one over another, the stacks being arranged at a predetermined distance from each other. The stator is at least partly produced from a soft magnetic material, and comprises at least two pairs of teeth with teeth opposite each other, each pair of teeth receiving one of the two stacks between them while forming an air gap. The stator has at least two magnetically conducting inner areas which are located between the two stacks and arranged at a predetermined distance from each other in the direction of motion of the rotor. The inner areas are each at least partially surrounded by a substantially hollow cylindrical coil arrangement, the central longitudinal axis of which is oriented substantially transversely to the direction of motion of the rotor. | 11-20-2008 |
20080284260 | ELECTROMAGNETIC ACTUATOR AND OPTICAL PICKUP DEVICE INCORPORATING ELECTROMAGNETIC ACTUATOR - An electromagnetic actuator has a base plate including a plurality of electric wires queued in a queued direction at an interval. Each electric wire produces a magnetic field when supplied with current. A movable portion is mounted on the base plate and is movable relative to the base plate in the queued direction. The movable portion includes a pole surface facing toward the electric wires. The movable portion is moved in the queued direction when magnetic attraction or magnetic repulsion is generated between the pole surface and the magnetic field produced by each electric wire. The pole surface is magnetically attracted by at least one of the electric wires facing toward the pole surface when the movable portion is being moved in the queued direction. | 11-20-2008 |
20090001823 | Magnet Assembly for a Linear Electromechanical Machine - A magnetic assembly for a linear electromechanical machine, the assembly comprising an annular support centered on an axis of reciprocation of the machine. A magnet assembly is attached to the annular support. The magnet assembly comprises at least one annular part which is substantially magnetic. The annular part has at least one non-conductive portion in a substantially radial plane and extending at least half of the way through the wall of the annulus. | 01-01-2009 |
20090033158 | PLANAR PULSE MOTOR, EXPOSURE APPARATUS, AND DEVICE MANUFACTURING METHOD - A planar pulse motor includes a stator and a mover which is arranged opposite to the stator and which has a plurality of coils. The planar pulse motor can drive the mover in a first direction on a horizontal plane and in a second direction orthogonal to the first direction by controlling current flowing in the plurality of coils. The stator has a plurality of raised portions, including a plurality of first raised portions composed by laminating a plurality of layers of members including magnetic materials through which magnetic flux can pass only in the first direction and a plurality of second raised portions composed by laminating a plurality of layers of members including magnetic materials through which magnetic flux can pass only in the second direction, and a plurality of recessed portions through which magnetic flux does not pass in either the first or the second direction. The plurality of raised portions are regularly arranged in a vicinity of each of recessed portions in the first and second directions. | 02-05-2009 |
20090079276 | LINEAR DRIVE DEVICE - A cup-shaped sleeve is made mainly of a resin and has an end where a plurality of pieces of a permanent magnet are insert-molded. An auxiliary ring made mainly of a resin is provided along an inner peripheral surface of the cup-shaped sleeve other than an inner peripheral surface thereof where the permanent magnet is provided. The auxiliary ring has its inner peripheral surface identical to the inner peripheral surface of the permanent magnet or located outside relative to the inner peripheral surface of the permanent magnet. When the cup-shaped sleeve is resin-molded, the resin which is a component of the cup-shaped sleeve is prevented from shrinking inward. Therefore, contact between the resin supporting the permanent magnet and the cylinder is prevented. Accordingly, a linear drive device is obtained in which the reciprocation of the piston is prevented from being hindered. | 03-26-2009 |
20090115262 | Laminated armature for fuel injector - A method of producing a laminated armature for a fuel injector provides providing a plurality of laminations ( | 05-07-2009 |
20090121559 | Vibration Device and Method of Fabricating the Same - A vibration device is provided. The vibration device includes a case, a vibrator, a coil, and a spring. The vibrator is disposed inside the case and including a magnet, a yoke, and a weight. The coil is supported by the case. The spring allows the vibrator to be elastically supported by the case. The spring includes a first coupling portion coupled to the vibrator, a second coupling portion coupled to the case, and a connecting portion connecting the first coupling portion to the second coupling portion. The second coupling portion is disposed on a concentric circle with respect to a center of the first coupling portion. A region in which the second coupling portion is disposed on the concentric circle ranges from 40% or more to less than 100% of a total region of the concentric circle. | 05-14-2009 |
20090278412 | LINEAR MOTOR ACTUATOR - Provided is a linear motor actuator which generates a sufficient thrust force and a retaining force and is remarkably smaller than conventional linear motor actuators. The linear motor actuator includes a base member ( | 11-12-2009 |
20100231061 | GIMBAL - A gimbal arrangement comprises a socket ( | 09-16-2010 |
20100289347 | Linear electric generator having an improved magnet and coil structure, and method of manufacture - Linear electric generators include stationary windings and armature magnets arranged to reciprocate axially relative to the windings, or stationary magnet structures and movable windings arranged to reciprocate relative to the stationary magnet structures. The armature magnets or stationary magnet structures are in the form of multiple pole magnets made up of a plurality of individual pole structures, each pole structure including a pair of magnets joined to each other with facing poles of like polarity. In addition, the windings may be in the form of a double winding structure including at least one first clockwise winding and at least one second counterclockwise winding arranged in a multi-layered stacked arrangement. | 11-18-2010 |
20110080061 | RESONANT ACTUATOR FOR A PERSONAL CARE APPLIANCE HAVING A PROGRAMMABLE ACTUATION CAPABILITY - The drive system for a personal care appliance, such as a toothbrush, includes a first opposing pair of permanent magnet assemblies positioned longitudinally along the length of the internal surface of a cylindrical appliance housing, each first permanent magnet assembly having one portion with a north polarity and the other portion a south polarity, and a second pair of permanent magnet assemblies which are orthogonal to the first pair of permanent magnet assemblies, one second permanent magnet assembly having a plurality of abutting first parts along the length thereof, the parts alternating between a north polarity and a south polarity, the other second permanent magnet assembly having similar parts with reversed polarity. First and second armatures are mounted on, or a portion thereof forms, a spindle element which extends along the length of and outward from the cylindrical housing. A plurality of drive windings are positioned around the armatures in such a manner that application of current to the windings, under programmable control, produces axial and/or tangential movement of the spindle and the workpiece. | 04-07-2011 |
20110115310 | Flat 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. The base further has a block located on the bottom wall. The block is located on a vibration path of the weight contacting the weight during vibration. An effective elastic displacement of the elastic member is not smaller than a distance between the block and a part contacting the block of the weight. | 05-19-2011 |
20110115311 | 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 moving unit suspended inside the housing by the elastic members, a PCB covered by the housing and a coil mounted on the PCB. The base has a bottom wall, a plurality of sidewalls extending vertically from the bottom wall and a blocking ring extending form a central portion of the bottom wall. The moving unit has a magnet assembly and at least a pair of patches and vibrates along a direction parallel to the bottom wall, the coil is located right below the magnet assembly. | 05-19-2011 |
20110156501 | RECIPROCATING POWER GENERATING MODULE - A reciprocating power generating module is disclosed, which comprises: a guide having a hollow space along the center axis thereof; an integrated magnet composed of a plurality of magnetic elements which are aligned one next to another in a manner such that poles of each of the magnetic elements are orientated to repel poles of its neighboring magnetic elements; and a coil composed of a plurality of at-least-two-phase windings which are wound around the guide and integrated one winding next to another; wherein the integrated magnet and the coil are arranged in a manner such that the coil is received in the hollow space inside the guide, and the shape of the inner surface of the guide directs the motion path of the integrated magnet. | 06-30-2011 |
20110169349 | Electromagnetic vibrator and producing method thereof - An electromagnetic vibrator is composed of 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. | 07-14-2011 |
20110181131 | FLAT VIBRATING MOTOR - A flat vibrating motor is disclosed. The flat vibrating motor includes a housing having a base and a cover, a magnet assembly suspended inside the housing, and a coil positioned right below the magnet assembly. A magnetic conductive plate is located between the coil and the base. | 07-28-2011 |
20110181132 | MINIATURIZED GENERATOR WITH OSCILLATING MAGNETS FOR THE PRODUCTION OF ELECTRIC ENERGY FROM VIBRATIONS - An electric energy generator from a vibrational field includes a body of non-ferromagnetic material, at least one pair of permanent magnets pivotally hung from the body in such a way that they are arranged therebetween. The magnets have faces of equal magnetic polarity turned to each other from opposite sides of the body, whereby a repulsive force is established between the magnets tending to keep them spread apart in an equilibrium position. A plurality of electric coils is arranged on the surface of the body so as to intercept the magnetic field generated by the magnets. The body is configured to be connectable to a vibration source, the vibration contrasting the repulsive force and causing an oscillation of the magnets about the equilibrium position, thereby generating a magnetic flux variation and thus an electric power production as an output from the electric coils. | 07-28-2011 |
20110278963 | Electrodynamic Linear Oscillating Motor - The invention relates to an electrodynamic linear oscillating motor characterised by high power densities in the magnet gap, magnetic return of the oscillating system to the centre position and a comparatively low weight of the oscillating system. The linear oscillating motor comprises a stator system, which is provided with at least one magnet ( | 11-17-2011 |
20110316363 | ELECTROMOTIVE ACTIVE DYNAMIC VIBRATION ABSORBER APPARATUS FOR VEHICLE - An electromotive active vibration absorber apparatus mounted to a vehicle to attenuate vibration of the vehicle may include elastic members mounted to an housing, an inner yoke having an upper yoke part and a lower yoke part which are fastened to the elastic members respectively, wherein an inner magnetic substance is disposed between the upper and lower yoke parts, and an outer yoke enclosing the inner yoke and having top and bottom portions dented to form inner and outer support members and a connector spoke and receive coil units therein, wherein the coil units include an upper coil unit and a lower coil unit, the upper coil unit being mounted above the connector spoke and the lower coil unit being mounted under the connector spoke respectively, between the inner and outer support members of the outer yoke, and wherein the coil units are controlled to vibrate the inner yoke when power is applied thereto. | 12-29-2011 |
20120007450 | RECIPROCATING DUAL-ACTION PISTON MAGNETIC FORCE MOTOR AND METHOD - A motor system and method thereof are provided, wherein the system includes an energy storage device, a piston assembly including a magnet, at least two end assemblies in operable communication with the piston assembly, and includes first and second end assemblies, each having an electromagnet. The motor system further includes a controller that controls a supply of electrical power to first and second electromagnets of the first and second end assemblies, such that a first polarity of the first electromagnet is opposite a second polarity of the second electromagnet, and the first and second polarities are intermittingly altered by the supply of electrical power, so the magnet of the piston assembly is attracted and repelled from the first and second end assemblies. | 01-12-2012 |
20120062049 | ELECTROMECHANICAL ENERGY CONVERTER - An electromechanical energy converter ( | 03-15-2012 |
20120104876 | Instantaneous Magnetohydrodynamic Generator - An instantaneous magnetohydrodynamic generator includes a magnetic plate and a first metallic electrode plate. The magnetic plate has at least one pair of N and S magnetic poles, wherein one magnetic pole of the pair of N and S magnetic poles has a first magnetic pole face and the other magnetic pole of the pair of N and S magnetic poles has a second magnetic pole face. The first metallic electrode plate has an electrode face and at least one metallic wire, wherein the electrode face faces the first and second magnetic pole faces. The metallic wire has a free end moving between a position beneath the first magnetic pole face and a position beneath the second magnetic pole face to induce a positive or negative tunneling current on the first metallic electrode plate. | 05-03-2012 |
20120139367 | VIBRATOR AND PORTABLE INFORMATION TERMINAL - It is possible to provide a vibrator configured so as to prevent the leakage of an adhesive out from between a frame and a diaphragm member and a portable information terminal having the vibrator. The vibrator includes: frame | 06-07-2012 |
20120235517 | High-Efficiency Linear Combustion Engine - Various embodiments of the present invention are directed toward a linear combustion engine, comprising: a cylinder having a cylinder wall and a pair of ends, the cylinder including a combustion section disposed in a center portion of the cylinder; a pair of opposed piston assemblies adapted to move linearly within the cylinder, each piston assembly disposed on one side of the combustion section opposite the other piston assembly, each piston assembly including a spring rod and a piston comprising a solid front section adjacent the combustion section and a gas section; and a pair of linear electromagnetic machines adapted to directly convert kinetic energy of the piston assembly into electrical energy, and adapted to directly convert electrical energy into kinetic energy of the piston assembly for providing compression work during the compression stroke. | 09-20-2012 |
20130106205 | VIBRATION TRANSDUCER AND ACTUATOR | 05-02-2013 |
20130313920 | SLIDING DEVICE - A covering is easily mounted and/or demounted to envelop an overall sliding device with onboard moving-magnet linear motor. The covering helps improved propulsion, high velocity and response of a table even with small in dimension, compact in construction. End blocks are installed in opposite ends of a bed and a linear motor is placed between the bed and the table. The end blocks are made in solid bodies which are tightened to the bed together with a coil board. The end blocks have butting surfaces which can come into abutment against the ends of the table to protect the table from getting out of the bed. The end blocks have locking recesses which mate with locking jaws on the covering to fasten the covering to the end blocks. | 11-28-2013 |
20130334903 | Electromagnetic Energy Conversion through Coil and Magnet Arrays - This specification describes technologies relating to converting vibration energy to electrical energy through electromagnetic transduction. According to an aspect, an apparatus to convert kinetic energy to electricity through electromagnetic transduction can include: an array of magnets arranged in a first plane; and an array of coils arranged in a second plane with respect to the first plane to form a gap between the array of magnets and the array of coils. According to another aspect, an energy harvester can include: a two dimensional array of magnets; a two dimensional array of coils; a housing configured and arranged to limit a direction of motion of either the two dimensional array of magnets or the two dimensional array of coils; and additional magnets configured and arranged to form a suspension system for either the two dimensional array of magnets or the two dimensional array of coils in the direction of motion. | 12-19-2013 |
20130342036 | VIBRATION-BASED ELECTRIC POWER GENERATOR - The present invention provides a The vibration-based electric power generator in which one of ends of a magnet holding member | 12-26-2013 |
20140054983 | LINEAR VIBRATOR - Disclosed herein is a linear vibrator including a fixing part including a housing having a certain space formed therein and a coil disposed within the housing, a vibration part including magnets disposed to face the coil such that electromagnetic force acts with the coil, weight bodies coupled to the magnets, and a moving case accommodating the magnets and the weight bodies therein, and an elastic member connecting the fixing part to the vibration part. | 02-27-2014 |
20140054984 | AUDIO RESONANCE VIBRATOR - An audio resonance vibrator includes a bracket, an elastic frame cooperatively with the bracket forming a housing having a receiving space, a magnetic circuit unit and a vibrating unit accommodated in the receiving space. The vibrating unit includes a vibrating plate and a coil assembly. The elastic frame further includes a bottom, a side wall extending vertically from the bottom, a supporting portion extending inwardly from the sidewall along a direction parallel to the bottom wall of the elastic frame, a slot formed between the bottom of the elastic frame for receiving the vibrating plate. | 02-27-2014 |
20140139051 | VIBRATION MOTOR - In a vibration motor, insulators are provided with protrusions that are positioned radially inward from extension portions, provided at an end portion of a body of a weight, and that restrict radial movement of the extension portions. In addition, in the vibration motor, the weight is supported by the protrusions of the insulators so as to prevent the weight from falling radially inward. Therefore, when using the vibration motor, the situation in which a force acting radially inward upon the weight is supported only by a weld or an adhesive is prevented from occurring, so that a gradual reduction in the securing strength of the weight does not occur. The insulators can prevent the weight from falling when assembling the vibration motor. | 05-22-2014 |
20140139052 | VIBRATION GENERATOR - The present invention provides such a vibration generator which can obtain desired power-generation efficiency even if the vibration frequency is low. A vibration generator is provided with a vibrator which includes a plurality of magnets whose same magnetic poles are arranged by being faced to one another and which vibrates by a predetermined resonant frequency; a coil spring which supports the vibrator falling toward the gravitational direction and concurrently which vibrates the vibrator by a predetermined resonant frequency; a tubular winding bobbin in the inside of which the vibrator and the coil spring vibrate; coils which are wound on the outer circumference of the winding bobbin and which are connected in series inside groups divided into two or more; and a plurality of rectification circuits, each of which rectifies the output voltages of the coils for every one of the groups. | 05-22-2014 |
20140239746 | INERTIAL DRIVE ACTUATOR - An inertial drive actuator includes a displacement unit, a vibration substrate, a first magnetic field generator which generates a magnetic field, a movable body disposed on a flat surface of the vibration substrate, and which includes a first yoke that concentrates a magnetic flux of an N-pole and an S-pole generated by the first magnetic field generator, at a predetermined position, and a second yoke which is disposed on a side of the vibration substrate, opposite to a direction facing the movable body. A movement in a direction perpendicular to a direction in which, the movable body is driven is regulated mechanically by end portions of the second yoke facing end portions of the first yoke at an outer side of the vibration substrate, and a frictional force is controlled by controlling the magnetic field, and the movable body is driven. | 08-28-2014 |
20140239747 | INERTIAL DRIVE ACTUATOR - An inertial drive actuator includes a displacement unit, a vibration substrate, a movable body, a first magnetic field generator which generates a magnetic field so that, a magnetic attractive force or a magnetic repulsive force acts in a direction opposite to the movable body, a first yoke, and which induces a magnetic flux generated by the first magnetic field generator such that, the flux generated by the first magnetic field generator is concentrated on a surface of the movable body, opposite to the vibration substrate, and second yokes and on a side of the vibration substrate, opposite to a direction facing the movable body, and the second yokes and control a frictional force acting between the movable body and the vibration substrate by controlling the magnetic field generated by the first magnetic field generator. | 08-28-2014 |
20140327328 | DEFORMATION CONTROL DEVICE FOR A RESONANT SPRING IN A LINEAR DRIVING UNIT - The present device is applied to a linear driving unit which comprises: a linear electric motor (M) formed by a motor housing (C) which is electrically excited and affixed to a fixed structure ( | 11-06-2014 |
20160084337 | ELECTROMAGNETIC ACTUATOR FOR ACTIVE VIBRATION ISOLATION SYSTEM - An electromagnetic actuator for an active vibration isolation system, the electromagnetic actuator includes: a fixed core; a movable core that is opposed to the fixed core and is joined to a vibration member; and a coil unit having coils that surround part of the fixed core and the movable core. The movable core and the vibration member are vibrated in a reciprocating manner by energization to the coils, and the coils include a main coil to which an alternating current with a waveform corresponding to vibrations of a vibration generation source is input and a sub-coil that amplifies magnetic flux generated by the main coil. | 03-24-2016 |
20160190903 | POWER GENERATION DEVICE - A power generation device of the present invention includes: a first magnet member; a second magnet member having its N-pole reversely disposed to an N-pole of the first magnet member; a center yoke capable of horizontally shifting and disposed between the first magnet member and the second magnet member; a coil disposed at the outer circumference of the center yoke; and a drive member horizontally shifting while holding the first magnet member and the second magnet member. The drive member and the center yoke horizontally shift in a first direction. After the horizontal shift of the center yoke in the first direction stops, the drive member further horizontally shifts in the first direction, and the center yoke horizontally shifts in a second direction opposite to the first direction. | 06-30-2016 |
20220140718 | VIBRATION ACTUATOR - A vibration actuator that can prevent reduction of vibration performance and durability of the vibration actuator and that can prevent occurrence of operation failure and noise when the vibration actuator had impact from the outside is provided. The vibration actuator includes a cylindrical casing having a first coil and a second coil, a movable element arranged inside the casing and having a magnet, and a first inner guide and a second inner guide arranged between the first coil and the second coil, and the movable element | 05-05-2022 |
310029000 | Pivoted or flat-spring armature | 15 |
20080278008 | 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 substantially annular high-permeability core, the core including at least one magnet therein to define a magnetic circuit, at least one rotatable bearing mounting the core to at least one bearing support, the at least one bearing permitting the core to pivot about a pivot axis, a gap provided in the core, a body of high-permeability material located in the gap, the body being spaced from respective end faces of the core by a respective spacing whereby pivoting movement of the core about the pivot axis causes relative movement between the end faces of the core and the body, and a rotationally fixed coil surrounding a length of the core coaxially with the pivot axis. | 11-13-2008 |
20080290742 | Acoustic wave generating apparatus and method - A tactile wave generating apparatus for generating amplified low frequency waves for transmission as tactile waves into a structure or a person's body. There is a housing in which is positioned a drive section that in turn comprises a magnet section that moves upwardly and downwardly as an inertial mass, two coils on opposite sides of the magnet and two flux path return plates for the coils. Each coil comprises upper and lower longitudinally aligned generally linear coil portions which drive the magnet section upwardly and downwardly. The magnet section is supported by upper and lower interconnecting sections that resiliently resist the up and down motion of the magnet section and restrain the magnet section to move up and down within close tolerances. | 11-27-2008 |
20100066182 | RECIPROCATING VIBRATOR - A reciprocating vibrator able to prevent detachment of a spindle etc. even without an outer cover, that is, a vibration linear actuator provided with a ring-shaped weight | 03-18-2010 |
20100102646 | RECIPROCATING VIBRATION GENERATOR - A reciprocating vibration generator of a structure enabling force of a reciprocating vibrating body striking a coil to be absorbed by magnetic fluid even if an external impact force is applied, that is, a reciprocating vibration generator provided in a case body | 04-29-2010 |
20110062803 | HORIZONTAL LINEAR VIBRATOR - Disclosed herein is a horizontal linear vibrator. The horizontal linear vibrator includes: a case and a bracket that are assembled with each other to form an inner space; a hollow coil that is installed in the case or the bracket; a vibrator that includes a magnetic field unit including one or more magnet disposed to penetrate through the inside of the hollow coil and a yoke formed to enclose the hollow coil and the magnets to generate magnetic field and a weight mounted in the magnetic field unit; a buffer member that is provided between the hollow coil and the yoke; and a spring member whose one end is fixed to the case or the bracket and other end is fixed to the vibrator and elastically supports the vibrator so as to horizontally move the vibrator. Thereby, there is provided the horizontal linear vibrator that has a horizontal vibration structure capable of maintaining the lifetime and response characteristics of the horizontal linear vibrator, implementing the sliminess thereof, increasing the vibration quantity thereof while controlling the motion displacement and improving the durability thereof. | 03-17-2011 |
20110074228 | VIBRATION MOTOR - A vibration motor is disclosed. In accordance with an embodiment of the present invention, the vibration motor includes a cylinder-shaped coil unit, a vibrator, which is inserted into the coil unit and includes a magnet that forms an asymmetric magnetic field in a vibration direction, and an elastic body, which elastically supports the vibrator. Thus, the vibration motor can have a nonlinear characteristic, and thus a frequency bandwidth in which a resonance occurs can be expanded. | 03-31-2011 |
20110074229 | VIBRATION MOTOR - A vibration motor is disclosed. In accordance with an embodiment of the present invention, the vibration motor includes a base, a vibrator, which reciprocates in the base, a protruding part, which is formed on at least one of the base and the vibrator, and an elastic body, which is interposed between the base and the vibrator and has a through-part formed therein and in which the protruding part is inserted into the through-part and the elastic body is coupled to the base or the vibrator by caulking or bending the protruding part which is protruded through the through-part. Thus, the vibration motor can have a uniform resonant frequency characteristic since a spring is coupled by way of caulking or bending. | 03-31-2011 |
20110101797 | VIBRATION MOTOR - A vibration motor is disclosed. In accordance with an embodiment of the present invention, the vibration motor includes a base, a vibrator, which reciprocates, a coupling part, which is protruded on at least one of the base and the vibrator, and a leaf spring, which includes a frame and an elastic part. Here, the frame is coupled to the coupling part and disposed apart from the base or the vibrator in which the coupling part is formed, and the elastic part is extended from the frame and elastically supports the vibrator. Thus, the leaf spring can be prevented from having concentrated stress and damage occurred, thereby improving the lifetime of the leaf spring. | 05-05-2011 |
20110101798 | SPRING FOR LINEAR VIBRATION MOTORS - Disclosed herein is a spring for a linear vibration motor. The spring elastically supports a vibrator to a stator of the linear vibration motor. The vibrator linearly vibrates using electromagnetic force generated by interaction between a coil and a magnet. The spring is provided between the stator and the vibrator. The spring includes a body part and an elastic part. The elastic part is coupled at a first end thereof to the body part. The elastic part extends a predetermined length such that a second end thereof is spaced apart from the body part. | 05-05-2011 |
20110234023 | SPRING ASSISTED MAGNETIC MOTOR - A permanent magnet motor having three chambers aligned end to end where each chamber has a bar magnet. The north pole of the bar magnet in the center chamber faces the north pole of the bar magnet in the chamber to its right and the south pole of the bar magnet in the center chamber faces the south pole of the bar magnet in the chamber to its left. Structure is provided to move the end magnets away from the center magnet and, by means of springs, alternately sequentially snap the end magnets toward the center magnet to drive the center magnet back and forth in its chamber. Shaft members which are connected to gears are provided to control the movement of the end magnets and to convert the back and forth motion of the center magnet to a rotary motion. | 09-29-2011 |
20120019079 | LINEAR ELECTRIC MOTOR - A linear electric motors including a housing, a first armature movable on a first essentially linear path with respect to the housing, and a second armature movable on a second essentially linear path with respect to the housing, wherein the first armature is mounted to the housing by a first mounting spring, wherein the first armature and the second armature are coupled to each other by a coupling spring, and wherein the second armature is mounted to the housing by a second mounting spring. | 01-26-2012 |
20140125152 | ELECTROMAGNETIC DRIVE MECHANISM - An electromagnetic drive mechanism ( | 05-08-2014 |
20140210283 | Operator control device - An operator control device includes: an activation element configured to provide haptic feedback to an operator, the activation element having a touch-sensitive operator control surface, and the activation element being configured to be activatable by an input member of the operator, triggering an activation signal; a pivoting axis to which the activation element is mounted so as to be pivotable about the axis between a position of rest and a switching position; a rotationally mounted magnetically influenceable element; and an electromagnetic actuator configured to be actuatable by the activation signal so as to generate a magnetic field that moves the rotationally mounted magnetically influenceable element from an initial position into a pivoting position. The movement of the magnetically influenceable element results in a torque sufficient to move the activation element out of the position of rest into the switching position being applied directly or indirectly to the activation element. | 07-31-2014 |
20140246928 | ELECTROMAGNETIC ACTUATOR HAVING ENHANCED MAGNETIC STRUCTURES - An electromagnetic actuator includes a coil that is selectively energizable by an electric current. The electromagnetic actuator further includes an armature having a outwardly extending prong. The armature is movably disposed with respect to the coil such that when the coil is energized with the electric current, the armature moves in relation to the coil and disposing thereby the prong on a first side of the coil. A flux gatherer is provided to be disposed around a second side of the coil, thereby channeling magnetic flux emanating from the coil back into the armature and prong. | 09-04-2014 |
20160006332 | RECIPROCATING DEVICE FOR ELECTRIC HAIR CUTTER - A reciprocating device used for electric hair cutter includes a housing, a magnetism transmitting unit, a coil unit, a reciprocating unit, a pivotal unit and a stationary magnet unit. After the coil unit is fitted to the magnetism transmitting unit, the former is partially surrounded by the latter. Through the pivotal unit, the reciprocating unit is pivotally fitted to the reciprocating device near the latter's rear or front end. The front or rear portion of the reciprocating unit passes through the magnetism transmitting unit. The other end of the reciprocating unit passes through the stationary magnet unit. In this manner, a portion of the reciprocating unit is housed or enclosed in the magnetism transmitting unit, allowing a reduction in the size of the prior art reciprocating device and hence the electric hair cutter in the prior art. | 01-07-2016 |
310030000 | Solenoid and core | 27 |
20080284261 | Quick-Action Bistable Polarized Electromagnetic Actuator - The invention relates to an electromagnetic actuator comprised of a mobile assembly, a fixed ferromagnetic stator assembly, at least one electric field coil, and of at least one permanent magnet, having two stable positions of equilibrium without current at its ends of travel. The invention is characterized in that the mobile assembly has two distinct ferromagnetic armatures placed on both sides of the stator assembly and each forms, together with the stator assembly, at least one magnetic circuit, and is characterized in that the permanent magnet magnetically cooperates with one of the other ferromagnetic mobile parts in a stable position of equilibrium without current at the end of travel. | 11-20-2008 |
20100084929 | LINEAR MOTOR FOR LINEAR COMPRESSOR - The present invention relates to a linear motor for a linear compressor reciprocating a moving member linearly inside a stationary member to compress refrigerant, and more particularly, to a linear motor for a linear compressor capable of decreasing an iron loss of a flux generated when a current flows in a coil and increasing an inductance. A linear motor for a linear compressor includes an inner stator formed by stacking core blocks in a circumference direction to be insulated from each other, an outer stator formed by arranging core blocks in a circumference direction at a predetermined intervals, and winding a coil around the core blocks, and a plurality of permanent magnets formed between the inner stator and the outer stator with a predetermined gap, and reciprocated linearly due to a mutual electromagnetic force. | 04-08-2010 |
20100109450 | MULTIPLE ARMATURE LINEAR MOTOR/ALTERNATOR HAVING MAGNETIC SPRING WITH NO FRINGE FIELDS AND INCREASED POWER OUTPUT - An electromagnetic, reciprocating linear motor or alternator having at least two armatures that are adjacent along an axis of reciprocation. The armatures have gaps that are linearly aligned along a gap path parallel to the axis. Field magnets reciprocate within the gap path. The field magnets include a main field magnet associated with each armature, each main field magnet having a magnetic polarization in the same direction across the gap path. A secondary magnet provides a centering spring force and is interposed between the main magnets. The secondary magnet extends in an axial direction from within a gap of one armature core to within an adjacent gap of an adjacent armature core. The secondary magnet is magnetically polarized in a direction opposite the polarization of the main magnets. | 05-06-2010 |
20100141055 | OUTER STATOR OF RECIPROCATING ENGINE AND RECIPROCATING ENGINE - An outer stator is provided in a reciprocating engine together with an inner stator and a mover, that has a cylindrical shape and is placed around the mover coaxially with an axis of the mover, and that forms a magnetic path between itself and the inner stator via a field magnet of the mover, the outer stator includes an aperture portion that is formed in an inner circumferential surface thereof that faces the mover; an internal space that opens via the aperture portion, and in which a wound wire coil is placed; and undercut portions that, in a cross section including the axis, are provided at both end positions along the axis, and that are recessed from the inner circumferential surface towards the outer side in a radial direction. | 06-10-2010 |
20100141056 | RECIPROCATING ENGINE - A reciprocating engine includes: an inner stator having an axis; a mover that has a cylindrical shape and is placed coaxially around the inner stator, and that moves reciprocatingly along the axis; and an outer stator that has a cylindrical shape and is placed coaxially around the mover, wherein the outer stator has: an aperture portion that is formed in an inner circumferential surface thereof that faces the mover; an internal space that opens via the aperture portion; and a wound wire coil that is placed inside the internal space, and wherein the mover has: a field magnet portion; and restoring magnet portions that are provided respectively at both end positions along the axis of the field magnet portion. | 06-10-2010 |
20100270871 | Electric generating system of a vehicle - An electric generating system includes a vehicle having at least two mechanical components which are capable of reciprocating movements relative to each other; and an electric generator connected to the mechanical components and including a magnet unit and a conductor winding unit. The reciprocating movements include an interaction of the conductor winding unit and magnetic flux lines of the magnet unit to generate electricity. The electricity can be produced from vibration energy induced by shock. | 10-28-2010 |
20100277012 | LINEAR GENERATOR - Provided is a linear generator which ensures efficient power generation stably while achieving a simplified structure and a reduced size and weight of the generator. The linear generator has a fluid pressure cylinder structure for reciprocating a piston ( | 11-04-2010 |
20110006619 | IMPACT GENERATOR AND IMPACT TESTING PLATFORM - An impact generator and an impact testing platform applying the impact generator are provided. The impact generator comprises a magnetic device, a coil, and an elastic device. The coil has a first receiving space for receiving the magnetic device, and the elastic device biases the magnetic device to an initial position. While a current is directed into the coil, a magnetic field is induced in the first receiving space to actuate the magnetic device to generate an impact to the ambience. While the current is blocked, the magnetic device returns to the initial position via the elastic device. | 01-13-2011 |
20110018369 | LINEAR VIBRATOR - A linear vibrator includes a casing defining an internal space of the vibrator, a bracket disposed under the casing and having a coil, to which electricity is applied to induce a magnetic field, an oscillator having a magnet received in a hollow portion of a yoke, one end of which is closed, and a cylindrical weight coupled onto the circumference of the yoke, and a spring member coupled with an upper portion of the casing to elastically support the oscillator such that the oscillator is movable in a linear motion, wherein the weight is provided with a plurality of circumferential recesses in which a rotary member is rotatably inserted while being in contact with a sidewall of the casing. | 01-27-2011 |
20110062804 | Linear vibration motor - A linear vibration motor includes: a top cover; a bracket coupled with the top cover to provide an internal space; a vibration unit having a mass body mounted at the internal space and linearly moving in a horizontal direction; an actuator having a magnet fixed to the mass body and a coil installed within a range of a magnetic field of the magnet and generating electromagnetic force to allow the vibration unit to move linearly in a horizontal direction; and a buffer member disposed in a space between the mass body and the bracket and limiting displacement of the vibration unit. | 03-17-2011 |
20110101799 | LINEAR VIBRATOR - A linear vibrator is disclosed. The linear vibrator in accordance with an embodiment of the present invention includes a base, a coil unit, which is coupled to the base, a magnet assembly, which forms a closed circuit of a magnetic force perpendicular to an electric current flowing through the coil unit and in which the magnet assembly relatively moves with respect to the coil unit, and an elastic member, which elastically supports the magnet assembly. Thus, a linear vibrator with an increased driving force can be provided by preventing the leakage of magnetic flux. | 05-05-2011 |
20110210624 | System For Providing Cyclic Motion - In one embodiment, a system for providing cyclic motion includes a magnetic drive having an electrically conductive coil defining a bore and a magnetic member movable through the bore. A control provides current to the coil and selectively reverses the direction of the current to move the magnetic member through the bore. In another embodiment, the system includes a counterbalance. The counterbalance includes a biasing member for reacting against a load applied to a support, and a lever arm coupled to the biasing member for varying a preload of the biasing member. In another embodiment, the magnetic drive and the counterbalance may be incorporated into an apparatus for reciprocating a person. | 09-01-2011 |
20120104877 | Portable Linear Generator - A portable linear generator for use as a battery charging element inside a portable powered device using multiple permanent magnets arranged linearly with each magnet constrained to repel each nearest magnet, one of the magnets fixed at one or each end of the array, one or more of the magnets free to move along the axis of the array, a guide rod extending through the magnets having a low friction or low friction and diamagnetic surface, and coaxially wound coil or coils of magnet wire arranged to electrically connect outside the device. | 05-03-2012 |
20120194008 | VIBRATION ENERGY GENERATOR - A vibration energy generator includes a case, a coil, a permanent magnet, and a shield magnet. The case is elongated in one direction and is made from a nonmagnetic material. The coil surrounds around an outer surface of the case. The permanent magnet reciprocates inside the case along the one direction. The permanent magnet is magnetized with a polarity oriented in the one direction. The shield magnet is disposed in one end portion of the permanent magnet in the one direction. Each of a surface of the one end portion and a surface of the shield magnet facing the surface of the one end portion has the same magnetic polarity. The length of the shield magnet in the one direction is less than the length of the permanent magnet in the one direction. | 08-02-2012 |
20120242175 | RECIPROCAL VIBRATION TYPE POWER GENERATOR EQUIPPED WITH INNER POST AND OUTER ANNULAR MAGNETIC MOTION BLOCK - The present invention is a novel design for the axial vibration type power generator, wherein the outer end of the location where the columnar magnet passing the annular power generation coil set is installed with an outer magnetic conductive member for reducing the magnetic resistance generated while the magnetic poles at two ends of the columnar magnet passing the annular power generation coil set, and the columnar magnet and the outer magnetic conductive member are jointly combined to a motion block assembly ( | 09-27-2012 |
20120326537 | LINEAR MOTOR WITH BACK YOKE - Provided herein is a linear motor in which a back yoke can readily be mounted onto a plurality of linear motor units. The back yoke is constituted from a back yoke assembly including a surrounding portion that entirely surrounds six linear motor units. The back yoke works to form part of respective magnetic circuits of the six linear motor units. The back yoke assembly includes first and second divided assemblies and five partition wall portions. The first and second divided assemblies are each formed by press working a magnetic plate made of silicon steel. | 12-27-2012 |
20130106206 | HIGH ENERGY DENSITY VIBRATION ENERGY HARVESTING DEVICE WITH HIGH-MU MATERIAL | 05-02-2013 |
20130221768 | VIBRATION TYPE ELECTROMAGNETIC GENERATOR - Disclosed is a vibration type electromagnetic generator provided with a first pipe ( | 08-29-2013 |
20130270929 | POSITIONAL ENCODER AND CONTROL ROD POSITION INDICATOR FOR NUCLEAR REACTOR USING SAME - A cam is immersed in water at an elevated temperature and/or pressure. A reciprocating cam follower also immersed in the water contacts a surface of the cam. The cam follower includes a permanent magnet. An electrically conductive coil is magnetically coupled with the permanent magnet such that movement of the cam follower induces an electrical signal in the electrically conductive coil. A sealed housing also immersed in the water contains the electrically conductive coil and seals it from contact with the water. Leads of the coil are electrically accessible from outside the sealed housing and from outside the water. Alternatively, the cam includes magnetic inserts, the cam follower is replaced by a sensor arm of magnetic material, and the sensor arm and/or the inserts are magnetized whereby rotation of the rotary element causes time modulation of the magnetic coupling and induces coil voltage. | 10-17-2013 |
20130300220 | SYSTEM AND METHODS FOR GENERATING ELECTRICITY - A system and methods for generating electricity through a commensal relationship between a moving object and a generation unit. A generation unit includes a generation unit magnet positioned to pass through an induction coil. In certain embodiments, a moving magnet associated with a moving object attracts the generation unit magnet and, accordingly, causes the generation unit magnet to pass through the induction coil. The passage of the generation unit magnet through the induction coil generates electricity. | 11-14-2013 |
20130342037 | VIBRATION-POWERED GENERATOR - A vibration-powered generator ( | 12-26-2013 |
20140035397 | VIBRATION ACTUATOR - A first weight portion of a vibration actuator includes an inner-side enlarged portion that protrudes from an end portion of a solid head in a direction of a vibration axis and that is inserted into an opening portion extending within a first compression coil spring along the direction of the vibration axis. An outer peripheral surface of the inner-side enlarged portion becomes continuously smaller in diameter from a base end towards a free end, with the vibration axis being the center of the diameter. That is, the inner-side enlarged portion has the shape of a truncated cone. The inner-side enlarged portion is inserted into the opening portion of the first compression coil spring and the opening portion is utilized to change the length of the inner-side enlarged portion in the direction of the vibration axis, thereby changing the mass of the first weight portion. | 02-06-2014 |
20140312719 | LINEAR GENERATOR - A linear generator having adjacent coils spaced apart no more than approximately 6 millimeters, and a magnet that moves through the coils. The magnet has a height that is greater than a combined height of at least two of the coils. Preferably, a pair of series-connected coils are spaced apart a distance that equals the magnet height. Current induced in the series-connected coils is in phase. The generator may have a second magnet that is oriented to repel the first magnet and that moves at a slower speed than the first magnet. An electric energy storage device is preferably coupled with the coil and a battery charger that receives energy from the storage device when it reaches a charging level. The storage device preferably receives energy from the coil through a rectifier when a voltage level in the coil is greater than a voltage level in the storage device. | 10-23-2014 |
20140339928 | LINEAR FARADAY INDUCTION GENERATOR FOR THE GENERATION OF ELECTRICAL POWER FROM OCEAN WAVE KINETIC ENERGY AND ARRANGEMENTS THEREOF - An energy converter system includes a rotor and a stator configured to be relatively stationary with respect to an environment. One of the rotor and the stator includes a field coil array and braking magnets, while the other of said rotor and said stator includes a permanent magnetic array that is configured to induce an electrical current in the field coil array in response to relative motion of the rotor and the stator. Magnets in the permanent magnetic array are oriented such that like poles of the magnets are disposed adjacently to concentrate a magnetic field through the field coil array. The braking magnets are oriented such that poles of the braking magnets face like poles of the closest respective magnet in the permanent magnetic array. | 11-20-2014 |
20140375149 | LINEAR POWER GENERATOR - A linear power generator includes a columnar or cylindrical center yoke made of a soft magnetic material and an outer yoke made of a soft magnetic material. In the center yoke, rod-shaped permanent magnets magnetized in a circumferential direction are arranged in the circumferential direction in an outer circumference of the center yoke such that opposed magnetic poles of the permanent magnets adjacent to each other become identical, the permanent magnets are extended in an axial direction, and the center yoke includes plural center-side projecting portions linearly arranged in the circumferential direction. The cylindrical or columnar outer yoke includes plural winding portions, plural groove portions, and an outer-side projecting portion. The winding portions are arranged in the circumferential direction about a center axis. The groove portions are arranged at positions opposed to the permanent magnets. | 12-25-2014 |
20160020682 | KINETIC ENERGY HARVESTING METHODS AND APPARATUS - A system, method, and apparatus for kinetic energy harvesting are disclosed. An example kinetic energy harvesting apparatus includes first and second magnet housings configured to each have a tubular shape. Each of the first and second magnet housing contains a central magnet and a ferrous shield connected to the respective magnet housings. One of the ferrous shields is located on a first side of the first magnet housing that is opposite of a second side facing the second magnet housing. The other of the ferrous shields is located on a first side of the second magnet housing that is opposite of a second side facing the first magnet housing. | 01-21-2016 |
20180026513 | KINETIC ENERGY HARVESTING METHODS AND APPARATUS | 01-25-2018 |