Voice coil motor and assembly process thereof

Abstract

The invention relates to a voice coil motor, and in particular relates to a voice coil motor flat spring plate for communication tools and an assembly process thereof. The voice coil motor flat spring plate comprises upper and lower flat spring plates with the same whole shape and structure, wherein the upper flat spring plate is of a monolithic structure; the lower flat spring plate is of a separated structure; both the upper and lower flat spring plates comprise inner frames, outer frames and elastic parts; and the elastic parts are equichordal wavy elastic chords. The flat spring plate can prevent deformation of the upper and lower spring plates caused by rotation of the lens mobile carrier when the lens is screwed in and has the advantages of small occupied space, convenience in assembly, labor hour conservation, use stability and the like.

Description

technical field [0001] The invention relates to a voice coil motor, in particular to a voice coil motor plate shrapnel used in communication tools and an assembly process thereof. Background technique [0002] Today, with the rapid development of economy and technology, with the rapid development of mobile communication and the popularization of electronic equipment, people increasingly hope that the electronic products they carry can effectively reduce the volume, but limited by the development of electromechanical systems, and Microelectromechanical Systems (MEMS) applications have not yet been popularized, so voice coil motors (Voice Coil Motors, VCMs) are widely used in the industry as the actuation system on electronic products; voice coil motors include metal casings, upper covers, upper shrapnel, Upper gasket, magnet, lens carrier, coil, lower gasket, lower shrapnel, fixed base, terminals and other components. When the voice coil motor is assembled into the lens, it n...

AI Technical Summary

Problems solved by technology

[0002] Today, with the rapid development of economy and technology, with the rapid development of mobile communication and the popularization of electronic equipment, people increasingly hope that the electronic products they carry can effectively reduce the volume, but limited by the development of electromechanical systems, and Microelectromechanical Systems (MEMS) applications have not yet been popularized, so voice coil motors (Voice Coil Motors, VCMs) are widely used in the industry as the actuation system on electronic products; voice coil motors include metal casings, upper covers, upper shrapnel, Upper gasket, magnet, lens carrier, coil, lower gasket, lower shrapnel, fixed base, terminals and other components. When the voice coil motor is assembled into the lens, it needs to be rotated and screwed in downward. After the coil is energized, the lens carrier drives the lens up and down. When the lens is selected into the lens carrier, the entire carrier will rotate, and the torsion of the spring will be relatively large, which will easily deform the upper and lower shrapnel, resulting in a high defect rate; in the increasingly miniaturized cameras, mobile phones, etc. Under the trend, it is obviously unable to meet the requirements

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