Ultrasmall type voice coil motor

A voice coil motor, voice coil technology, applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of limited application, etc., to simplify the installation process, save welding steps, and reduce the radial and axial dimensions. Effect
CN101068091AInactive Publication Date: 2007-11-07YIXING GUIXIN MAGNETOELECTRIC HI TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
YIXING GUIXIN MAGNETOELECTRIC HI TECH
Publication Date
2007-11-07
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A voice coil motor of miniaturized type is featured as applying simple design on radial size of motion-carry base and new material for front and rear spring plates, using separation design on left and right branch plates of said rear spring plate and optimum design on shape as well as distribution of permanent magnetic unit, applying convex-concave fastening design on front-back cover of shell and between front covers for realizing miniatured- size of voice coil motor.
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Description

technical field

[0001] The present application relates to a voice coil motor, in particular to an ultra-miniature voice coil motor used in an auto-focus camera module in portable electronic devices such as mobile phones and notebooks. In this application, through the design innovation of the key parts of the motor, the external dimensions of the voice coil motor are fully reduced on the premise of ensuring the functional characteristics. Background technique

[0002] Currently, autofocus camera modules for mobile phones and notebook computers generally use voice coil motors as the power unit for the displacement of their optical devices. Previously, domestic research and development and mass production of voice coil motors in this application area were blank. There are only three Asian companies in the world that can achieve industrial production, and their institutional designs are basically similar, as shown in Figures 1 and 2. The parts involved include shells 1, 2, a m...

Claims

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