Voice coil motor

A voice coil motor, coil assembly technology, applied in electromechanical devices, installation, optics, etc.

Inactive Publication Date: 2010-10-13
WAH HONG INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the aforementioned voice coil motor 3 needs to use a yoke to guide the leakage flux 37 to the outer edge, so as to magnetically interlink with the plurality of guiding steel shafts 341, 342, In order to achieve the effect of magnetic preloading, however, the configuration of the yoke will affect the difficulty of manufacturing, and at the same time, it also limits the configuration of other components, and it also has its bottleneck in miniaturization

Method used

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Embodiment Construction

[0037] Please refer to figure 2 , is a schematic structural diagram of the voice coil motor device according to the first embodiment of the present invention. The voice coil motor device 2 of the present invention includes: a lens assembly 21 , at least one moving guide component 22 , a fixing seat 23 , a coil assembly 25 , at least one magnet 26 and at least one linear elastic member 27 .

[0038] like figure 2 As shown, the lens assembly 21 is provided with a lens (not marked) for image taking, and the lens assembly 21 and the magnet 26 are assembled to form a moving part of the voice coil motor device 2 of the present invention. The aforementioned magnet 26 can be a guide Magnetic material replaced. After being assembled, the fixing base 23 and the coil assembly 25 constitute a fixing part of the voice coil motor device 2 of the present invention. The moving guide part 22 is fixedly arranged on the fixed part, and is arranged on the inner edge of the circular hole-shap...

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Abstract

The invention provides a voice coil motor device which comprises a fixed member, a moving member, at least one mobile guide part and at least one linear elastic part, wherein, the moving member is arranged on the fixed member; the linear elastic part is respectively provided with a fixed part and a pre-pressed part; the fixed part is connected with the fixed member; the pre-pressed part is connected with the moving member; and a lateral pre-pressing force is imposed on the moving member. The linear elastic part provides a reset elastic force for the moving member, and the mobile guide part can be arranged on the fixed member or on the moving member for guiding the movement of the moving member and providing the lateral resistance for resisting the lateral pre-pressing force.

Description

technical field [0001] The invention relates to a voice coil motor device, in particular to a voice coil motor device which can be applied to drive the lens of a miniature imaging module. Background technique [0002] In recent years, the trend of portable devices equipped with imaging modules has become increasingly common. With the market demand for better performance and smaller size of portable devices in the product market, imaging modules are facing the dual requirements of higher image quality and miniaturization. For the improvement of image quality, on the one hand, it is necessary to increase the pixels. The market trend of image capture modules for portable devices has gradually increased from VGA-level 300,000 pixels to megapixels, 2 million pixels, 3 million pixels, and even higher. Level of 4 million, 5 million pixel development. In addition to the improvement of pixels, more attention has been paid to the clarity of imaging, so the imaging module of portable...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/02H02K33/18
Inventor 郭利德赖美玲
Owner WAH HONG INDAL CORP
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