Linear vibration motor
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorJoon Choi
Life of this patent
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Abstract
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.
Claims7
A linear vibration motor comprising:
- 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;
- a case having an internal space formed therein so as to cover the vibrator part;
- and
- a bracket coupled to a lower portion of the case and having an extension part coupled to one end of the printed circuit board, and
- wherein the magnet is coupled to an upper surface of an inner side of the case, and the damper is coupled to the bracket, on the opposite side of the magnet, and is located opposite to the vibrator part.
Dependencies are inferred from the claim text.