Moving-magnetic type linear vibration motor

Abstract

The invention provides a moving-magnetic type linear vibration motor. The moving-magnetic type linear vibration motor comprises a casing with an accommodating space, two elastic elements, a mass block, two magnets and two coils, wherein the two elastic elements are connected to the side walls of the casing oppositely; the mass block and the two elastic elements are connected and suspended in the accommodating space of the casing through peripheral walls respectively; the two magnets are fixedly connected to two ends of the mass block respectively, and the center connecting lines of the magnetsand the two elastic elements form an acute angle or an obtuse angle; the two coils are fixed on the casing with the corresponding magnets at intervals, and the center connecting lines of the coils and the two elastic elements form an acute angle or an obtuse angle. Lorentz force received by the coils can be decomposed into component force in the first direction of the center connecting line of the two elastic elements and component force in the direction perpendicular to the second direction of the center connecting line of the two elastic elements, and the magnets correspondingly receive twoacting forces in opposite directions, wherein the two acting forces are equal to the two component forces of Lorentz force received by the coils. A vibrator assembly comprising the magnets and the mass block can vibrate in two mutually perpendicular directions.

Description

technical field [0001] The invention relates to the technical field of vibration motors, in particular to a moving magnet linear vibration motor. Background technique [0002] In recent years, miniature horizontal linear vibration motors have begun to be used in wearable devices, mobile phones and other fields, and have achieved good feedback from clients. This kind of motor has the advantages of clear vibration, strong vibration, fast response to various signals, and realistic scene tactile feedback. As this good experience is widely recognized, not only mobile phones, wearable device companies adopt linear motors, but also car touch screens, and portable handheld game consoles have also shown strong interest. [0003] Existing linear vibration motors generally include a shell, a stator assembly, and a vibrator assembly. Linear vibration is achieved through the reciprocating motion of the vibrator assembly. However, the existing linear vibration motors usually vibrate in o...

AI Technical Summary

Problems solved by technology

[0003] Existing linear vibration motors generally include a housing, a stator assembly, and a vibrator assembly. Linear vibration is achieved through the reciprocating motion of the vibrator assembly. However, the existing linear vibration motors usually vibrate in one direction of the vibrator assembly, which cannot meet the requirements for multi-directional vibration. need

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