Linear vibration motor

Abstract

The invention belongs to the field of vibration motors, and in particular discloses a linear vibration motor, which comprises a square chassis, a cover plate, a stator part and a vibrator part, wherein the stator part comprises a first coil, a second coil and a flexible circuit board; the vibrator part comprises an elastic piece, a permanent magnet, a mass block and a yoke piece, wherein the elastic piece comprises an elastic section and at least two support sections disposed at both ends of the elastic section; and the at least two support sections are respectively connected with adjacent wall faces of the square chassis. The linear vibration motor in the invention has the beneficial effects that a multi-axial vibration feedback scheme is provided, the arc-shaped elastic piece design enables simultaneous connection of the side surface of the X and Y oriented chassis and the vibrator, the damping is small, the elastic coefficient is high; meanwhile, the kinetic energy of the vibrator can be stored and converted into the X and Y kinetic energy of the chassis and the cover plate, thereby achieving quick start and stop; the brand new mass block design improves the utility rate of space and the vibration quality, the quality factor is high, and strong vibration feeling is achieved.

Description

technical field [0001] This field belongs to the field of vibration motors, specifically a linear vibration motor. Background technique [0002] Linear motors are mainly used in communication terminals such as mobile phones, tablet computers, and wearable devices, as well as game controllers, toys, and other devices. They are popular because of their fast speed, high vibration, small size, and easy installation. However, as communication terminal devices such as mobile phones and tablet computers become thinner, smaller, and lighter in weight, the requirements for the space occupied by linear motors are getting higher and higher. Generally speaking, linear motors The smaller and smaller the better. However, the available linear motors on the market can only provide vibration in one direction, such as the X-axis vibration. Vibrating large structure, but this patent application only solves the problem of vibrating in one direction of the X-axis or driving in another directio...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problem that the existing linear motor cannot vibrate in two directions at the same time, and provides a linear vibrating motor capable of vibrating at the same time in the X&Y axis

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