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Voice coil motor with anti-torsion mechanism

A voice coil motor and structural unit technology, applied in installation, optics, instruments, etc., can solve the problems of voice coil motor damage, spring stress concentration, spring deformation, etc., to improve the lack of torsion resistance, stabilize quality, and maintain quality Effect

Inactive Publication Date: 2013-10-16
YIXING GUIXIN MAGNETOELECTRIC HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing voice coil motors usually contain one or more springs, and the torque generated during the locking process will be directly absorbed by the spring. Once the deformation exceeds the maximum stress that the spring can bear, it will cause the spring to collapse. Stress concentration causes permanent deformation of the spring and makes the spring lose its original function
Even in a voice coil motor with no spring structure, excessive torque may cause damage to other structures in the voice coil motor

Method used

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  • Voice coil motor with anti-torsion mechanism
  • Voice coil motor with anti-torsion mechanism
  • Voice coil motor with anti-torsion mechanism

Examples

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Comparison scheme
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Embodiment 1

[0019] like figure 1 , figure 2 As shown, the voice coil motor with anti-torsion mechanism of the present invention includes a lens holder 1 and a base 2, wherein one or a plurality of structural units 7 can be arranged around the lens holder 1, and one or a plurality of stoppers can be arranged on the base 2. Wall structure 8, the retaining wall structure 8 corresponds to the structural unit 7, the retaining wall structure 8 is arranged on the outer periphery of the structural unit 7, when the lens holder 1 and the base 2 are combined and installed, the retaining wall structure 8 and the structural unit 7 cooperate to form an anti- twist mechanism.

[0020] Among them, the lens holder 1 and the base 2 can be made of metal or non-metal, the structural unit 7 can be straight, the retaining wall structure 8 is made of non-metal or metal material, and the retaining wall structure 8 made of metal is inserted or inserted after injection. Made by insert injection or molding.

Embodiment 2

[0022] like image 3 , Figure 4 As shown, the voice coil motor with anti-torsion mechanism of the present invention includes a lens holder 1 and a base 2, wherein one or a plurality of structural units 7 can be arranged around the lens holder 1, and one or a plurality of stoppers can be arranged on the base 2 Wall structure 8, the retaining wall structure 8 corresponds to the structural unit 7, the retaining wall structure 8 is arranged on the outer periphery of the structural unit 7, when the lens holder 1 and the base 2 are combined and installed, the retaining wall structure 8 and the structural unit 7 cooperate to form an anti- twist mechanism.

[0023] Wherein, the lens holder 1 and the base 2 can be made of metal or non-metal material, the structural unit 7 can be an irregular shape structure with non-straight sides, the retaining wall structure 8 is made of non-metal or metal material, and the retaining wall structure of metal material 8 is made by inserting or embed...

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PUM

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Abstract

The present invention discloses a voice coil motor with an anti-torsion mechanism. The motor comprises a lens seat and a base, wherein the lens seat is peripherally provided with one or a plurality of structural units; the base is provided with one or a plurality of parapet structures corresponding to the structural units and arranged around the structural units; and when the lens seat and the base are combined for installation, the parapet structures and the structural units cooperate with each other, thereby forming the anti-torsion mechanism. According to the invention, by the anti-torsion mechanism of the voice coil motor, the problem of insufficiency of anti-torsion capacity of the voice coil motor is completely improved, and the stability in quality of the voice coil is maintained while the requirements of high precision and high stability are ensured.

Description

technical field [0001] The invention relates to a voice coil motor with an anti-torsion mechanism. Background technique [0002] A voice coil motor used in an image device must be equipped with an optical lens, and the optical lens is a lens group composed of several lenses in a lens barrel with a threaded structure, and the voice coil motor contains a lens holder for the optical lens With lock, in order to meet the stability and precision of lock, there must be a lock torque in the lock condition. [0003] Existing voice coil motors usually contain one or more springs, and the torque generated during the locking process will be directly absorbed by the spring. Once the deformation exceeds the maximum stress that the spring can bear, it will cause the spring to collapse. Stress concentration causes permanent deformation of the spring and makes the spring lose its original function. Even in a voice coil motor with no spring structure, excessive torque may cause damage to ot...

Claims

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Application Information

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IPC IPC(8): G02B7/02
Inventor 邵柏芝张文嘉
Owner YIXING GUIXIN MAGNETOELECTRIC HI TECH