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Voice coil motor and imaging device with same

A technology of a voice coil motor and an imaging device, which is applied to the focusing device of a camera, the focusing device of a projector, an electromechanical device, etc., can solve problems such as affecting normal operation, and achieve the effect of eliminating electromagnetic interference.

Inactive Publication Date: 2009-09-30
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the electromagnetic interference generated by the voice coil motor is not eliminated, the electromagnetic interference will affect the normal operation of other electronic components in the imaging device

Method used

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  • Voice coil motor and imaging device with same
  • Voice coil motor and imaging device with same
  • Voice coil motor and imaging device with same

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Embodiment Construction

[0011] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0012] see figure 1 , is the voice coil motor 10 provided in the first embodiment of the present invention, which is assembled on a circuit board 20 through a base 40 . The voice coil motor 10 includes a body 11 , a metal casing 12 and two pole (positive and negative) terminals 13 , 14 . The two electrode terminals 13 , 14 are drawn out from the main body 11 and are in electrical contact with the circuit board 20 to provide current to the voice coil motor 10 to operate the voice coil motor 10 . The metal shell 12 is used to cover the main body 11 , and the main body 11 is used to drive the lens part (not shown) of the camera module of the imaging device to focus or zoom. The metal shell 12 is provided with a protruding structure 120 along the direction facing the circuit board 20 . The circuit board 20 has an electrical grounding point 2...

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Abstract

The invention relates to a voice coil motor comprising a body and a metal shell which coats the body, wherein the metal shell is provided with a convex structure used for electrical grounding. The convex structure of the metal shell of the voice coil motor is electrically grounded, thereby ensuring that the metal shell generates a grounded coating function to eliminate electromagnetic interference generated by the voice coil motor. The invention also relates to an imaging device with the voice coil motor.

Description

technical field [0001] The invention relates to a driving device, in particular to a voice coil motor for driving a camera module to focus or zoom and an imaging device with the voice coil motor. Background technique [0002] At present, in imaging devices, voice-coil motors (Voice-Coil Motors, VCMs) are generally used to drive the lens part of a camera module (Camera Module) for focusing or zooming. However, voice-coil motors will generate electromagnetic interference ( Electromagnetic Interference, EMI). If the electromagnetic interference generated by the voice coil motor is not eliminated, the electromagnetic interference will affect the normal operation of other electronic components in the imaging device. Contents of the invention [0003] In view of this, it is necessary to provide a voice coil motor capable of effectively eliminating electromagnetic interference and an imaging device having the voice coil motor. [0004] A voice coil motor includes a main body an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/22H02K5/02H02K11/02H02K33/00G03B13/34
CPCH02K41/0356H02K11/0005H02K11/014
Inventor 郑树仁
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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