Patent application number | Description | Published |
20110265106 | Motor and disk driving device equipped with motor - There are provided a motor and a disk driving device equipped with the motor. The motor may include a core on which a coil is wound, a rotor having a magnet generating an electromagnetic force through an interaction with the coil, and rotating a shaft, a sleeve housing including an inner diameter part to which a sleeve supporting the shaft is press-fitted, a core seating part extended outside in an outer diameter direction from the inner diameter part, and an outer diameter part extended to an axial lower side of the sleeve from the core seating part, and a base plate including a strength reinforcement part formed therein, the strength reinforcement part being brought into contact with the outer diameter part and at least one part of an inner surface of the core seating part. | 10-27-2011 |
20110321068 | Disk chucking device and motor apparatus using the same - There is provided a disk chucking device including a disk chucking device including a centering case to which an inner circumferential surface of a disk is fixed, chucking members received in insertion holes formed in the centering case, and an elastic member connecting the centering case and the chucking members to each other in such a manner as to elastically support the inner circumferential surface of the disk, when the disk is mounted on the centering case, the elastic member having at least two bent portions by which displacements and restoring forces have a quadratic function relationship. | 12-29-2011 |
20120017225 | Motor and optical disc drive using the same - There are provided a motor in which a coupling structure between a sleeve holder and a base plate is improved to thereby reduce manufacturing costs and manufacturing process of the motor, and to an optical disc drive using the same. The motor may include a base plate including at least one protrusion supporting part formed therein; and a sleeve holder including a cylindrical shaped body part to which a sleeve is fastened in an inside of the sleeve holder, an extension part protruded such that an outer diameter is extended along an outer circumferential surface of the body part, and a flange part vertically protruded in an outer diameter direction from a lower end portion of the extension part so as to make surface contact with an upper surface of the base plate, wherein the sleeve holder is fastened to the base plate while an outer circumferential surface of the protrusion supporting part is brought into contact with an inner circumferential surface of the extension part. | 01-19-2012 |
20120174140 | DISK CHUCKING DEVICE - There is provided a disk chucking device including: a chucking mechanism body installed on a rotor case; a chuck chip movably installed on the chucking mechanism body and fixing a disk thereto; and a spring member installed such that both ends thereof are supported by the chucking mechanism body and the chuck chip, and including a permanent deformation suppressing part provided in a bent portion thereof in order to prevent permanent deformation of the bent portion when the disk is loaded and unloaded and having a smaller pitch than that of other portions. | 07-05-2012 |
20130162092 | SINGLE PHASE INDUCTION VIBRATION MOTOR - There is provided a single phase induction vibration motor including: a bottom member including a shaft and a permanent magnet; a rotating member rotatably coupled to the shaft; a coil member disposed on a portion of the rotating member; and a mass member disposed on the coil member such that weight eccentricity of the rotating member with respect to the shaft increases. | 06-27-2013 |
20130162115 | FLAT-TYPE VIBRATION MOTOR - There is provide a flat-type vibration motor capable of significantly reducing the generation of injection burrs during an injection molding process of an injection molding material, the flat-type vibration motor according to the present invention including: a rotor including a first substrate having a circuit pattern formed on a surface thereof and a holder coupled to the first substrate by injection molding; and a shaft including the rotor rotatably coupled thereto and forming a rotational axis of the rotor, wherein the circuit pattern may include a sealing pattern formed along an outline of the holder. | 06-27-2013 |
20130187503 | SINGLE PHASE INDUCTION VIBRATION MOTOR - There is provided a single phase induction vibration motor including: a bottom member having a shaft and a permanent magnet; a rotating member rotatably coupled to the shaft; a coil member disposed on the rotating member; and a magnetic member disposed on the rotating member to determine a stationary position of the rotating member, wherein the magnetic member is disposed to partially overlap with a region in which the permanent magnet is positioned, based on a horizontal surface of the rotating member. | 07-25-2013 |
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 |
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 |