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US 2016/0079827 A1Published application
Vibration generating device
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorYong Tae KIM
Life of this patent
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Abstract
There is provided a vibration generating device including: a driving magnet of a rotor part rotated around a shaft and a coil part disposed to face the driving magnet and electromagnetically interacting with the driving magnet to rotate the rotor part, wherein the number of poles of the driving magnet and the number of coils of the coil part are the same as each other.
Claims10
A vibration generating device comprising:
- a housing having an internal space;
- a circuit board which is fixed to the housing and of which a portion is extended externally from the housing;
- a coil part including at least four coils which are installed on the circuit board;
- a rotor part rotated around a shaft and including a driving magnet which is disposed to face the coil part;
- and
- a driving control member installed on the circuit board and detecting a position of the driving magnet.
3 more elements
A vibration generating device comprising:
- a housing having an internal space;
- a circuit board which is fixed to the housing and of which a portion is extended externally from the housing;
- a coil part including at least four coils which are installed on the circuit board;
- a bearing member rotatably installed on a shaft provided in the housing;
- a yoke member fixed to an outer peripheral surface of the bearing member;
- a driving magnet fixed to a lower surface of the yoke member;
- a mass body installed on the yoke member and disposed outside of the driving magnet;
- and
- a driving control member installed on the circuit board and detecting a position of the driving magnet,
- wherein the number of poles of the driving magnet and the number of coils of the coil part are the same as each other.
7 more elements
Dependencies are inferred from the claim text.