Carrier component

Abstract

The invention relates to the technical field of VCMs (voice coil motors), in particular to a carrier component which comprises a carrier and an F spring arranged at the upper end of the carrier; the carrier is of a square hole-like structure as a whole; a clamping linear slot used for accommodating a constant magnetic field generating element is arranged on a peripheral side wall of the carrier; the constant magnetic field generating element is clamped in the clamping linear slot; a Hall magnetic field sensing element receiving slot for arranging a Hall magnetic field sensing element is further arranged on the carrier; thus, according the invention, first limiting columns and second limit columns, arranged on a support table, are respectively matched with first limiting column through holes and second limiting column through holes in a B spring; the first limiting columns are first matched with the first limiting column through holes in an assembly process; the height and the cross-sectional area of each first limiting column are large, that is, the assembly is performed within a certain assembly reference range, and the second limiting columns and the second limiting column through holes are relatively high in assembly precision, so that the fast assembly is realized, the assembly precision is ensured, and the focusing precision of a voice coil motor is improved.

Description

Technical field: [0001] The present invention relates to the technical field of VCM, in particular to a carrier component. Background technique: [0002] Closed-loop motor (Voice Coil Actuator / Voice Coil Motor) is a device that converts electrical energy into mechanical energy, and realizes linear and limited swing angle motion. A device that uses the interaction between the magnetic field from the permanent magnet steel and the magnetic poles in the magnetic field generated by the energized coil conductor to produce regular motion. Because the closed-loop motor is a non-commutating power device, its positioning accuracy depends entirely on the feedback and control system, and has nothing to do with the closed-loop motor itself. With appropriate positioning feedback and sensing devices, the positioning accuracy can easily reach 10NM, and the acceleration can reach 300g (the actual acceleration also depends on the condition of the load). The camera module uses the shutter t...

AI Technical Summary

Problems solved by technology

Due to the limitation of the ball structure, the ball-type closed-loop voice coil motor has a large volume, which is not conducive to the development of end products in the direction of thinning and thinning; and in the non-photographing state, the lens will hit the motor shell and produce abnormal noise, which will affect the user's use; and The structure of the currently announced shrapnel-type closed-loop voice coil motor has a complicated production process and high production costs, which is not conducive to automated production

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