VCM motor, camera and mobile terminal device

Abstract

The invention relates to a VCM motor, a camera and a mobile terminal device.The VCM motor comprises a shell, a base buckled with the shell, a carrier connected with the shell through an upper spring and magnets driving the carrier to act, a lens is installed on the carrier, and protruding structures are arranged in the areas, close to the four corners, of the upper surface of the shell. The protruding direction of the protruding structure faces the inner side of the shell, and the upper spring and the magnet are fixedly installed at the position of the protruding structure. According to the VCM motor provided by the invention, the corresponding convex structures are punched on the shell to form the inwards convex bearing surfaces, the bearing surfaces can accurately position and fix the magnets and the springs, the use of gaskets can be reduced, the difficulty of a production process is reduced, and meanwhile, the convex structures can resist a relatively large external force without deformation, so that the reliability is good.

Description

technical field [0001] The present invention relates to the field of VCM motors, in particular, to a VCM motor, a camera and a mobile terminal device. Background technique [0002] With the development of mobile phones, people have higher and higher requirements for the imaging quality of mobile phone cameras, and the aperture is getting larger and larger, leaving less and less internal space for the voice coil motor. How to solve the precise positioning of the driving magnet in the limited space of the iron shell has become a problem that must be solved. [0003] At present, there are two commonly used solutions: 1 is to add a gasket, and 2 is to use a side punch structure to make the shell protrude inward with a small platform structure. For the first solution, the upper surface of the housing can be made into a complete plane without any grooves, and additional built-in gaskets are added for the VCM spring and magnet bearing, which complicates the VCM motor process and c...

AI Technical Summary

Problems solved by technology

For the first solution, the upper surface of the housing can be made into a complete plane without any grooves, and additional built-in gaskets are added for the support of the VCM spring and magnet, which makes the VCM motor process complicated and costly. Increased height; for the second option, although the use of side impact structure also meets the requirement that the shell is in a flat state, the side convex structure is small, the strength is weak, it is easy to deform and fail, and the structural strength is insufficient, which restricts the performance of the product. It is not conducive to the assembly of magnets and springs; it needs to be improved urgently

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