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US 9,071,123 B2Granted
Voice coil motor
AssigneeHon Hai Precision Industry Co., Ltd.
InventorTai-Hsu Chou
Life of this patent
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Abstract
A voice coil motor includes a case, a stationary module, and a movable module. The stationary module is retained within the case, and includes a housing and a number of magnets. The housing and the plurality of magnets are integrally formed. The movable module is movably retained within the case, and includes a barrel and a coil coupled to the barrel. When electric current is applied to the coil, the coil generates a magnetic field and the magnetic field repels the magnets, thereby driving the movable module to move.
Claims6
A voice coil motor comprising:
- a case;
- a stationary module retained within the case, the stationary module comprising a housing and a plurality of magnets, and the housing and the plurality of magnets being integrally formed;
- and
- a movable module movably retained within the case and received in the housing, the movable module comprising a barrel and a coil completely embedded in the barrel, wherein when electric current is applied to the coil, the coil generates a magnetic field and the magnetic field repels the magnets, thereby driving the movable module to move.
1 more element
Dependencies are inferred from the claim text.