Voice coil motor and camera device applying same

Abstract

The invention discloses a voice coil motor. The voice coil motor comprises a carrying base, at least two coils, magnets and a current control apparatus for adjusting the coil current; each coil is connected with the current control apparatus separately; the coils are mounted on the carrying base; and the magnets are arranged on the outer side of the carrying base, and the magnets and the coils arearranged oppositely in one-to-one manner. The voice coil motor provided by the invention comprises at least two coils; the current value of each coil is adjusted through the current control apparatusaccording to needs, and then the magnetic field corresponding to each coil is further adjusted so as to realize position adjustment of the carrying base; and compared with a condition that the inclined angle position of the carrying base after the voice coil motor is assembled cannot be adjusted, the voice coil motor provided by the invention effectively improves the production percent of pass ofthe voice coil motor. The invention also discloses a camera device comprising the voice coil motor.

Description

technical field [0001] The invention relates to the field of micro-electromechanical technology, in particular to a voice coil motor. The present invention also relates to an imaging device comprising the above-mentioned voice coil motor. Background technique [0002] A voice coil motor is a device that converts electrical energy into mechanical energy, while enabling linear or limited angular motion. Usually voice coil motors are used in cameras for focusing. [0003] A traditional voice coil motor includes a carrier and a coil wound outside the carrier. When assembling the module, the voice coil motor, lens and other devices are assembled. Due to the inclination angle of the central axis of the carrier in the voice coil motor relative to the central axis of the motor base After assembly, the position is fixed, and the inclination and direction of the carrier are difficult to control. If the inclination and direction of the carrier exceed the preset range value, the voice...

AI Technical Summary

Problems solved by technology

[0003] The traditional voice coil motor includes a carrier and a coil wound outside the carrier. When assembling the module, the voice coil motor, lens and other devices are assembled. Due to the inclination angle of the central axis of the carrier in the voice coil motor relative to the central axis of the motor base After assembly, the position is fixed, and the inclination and direction of the carrier are difficult to control. If the inclination and direction of the carrier exceed the preset range, the voice coil motor will be scrapped, which will lead to a decrease in the production qualification rate of the voice coil motor.

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