Symmetric linear vibrator

Abstract

The invention discloses a symmetric linear vibrator which comprises a base, a PCB which is fixed on the base, a coil, magnetic steel, a radome, a connecting plate, a supporting frame and an upper cover, wherein the supporting frame and the upper cover are fixed on the base. The coil is fixed on the PCB. The wiring end of the coil is welded on the PCB, thereby forming a stator. The magnetic steel,the radome and the connecting plate are successively connected from bottom to top, thereby forming an oscillator. An upper elastic plate and a lower elastic plate are connected between the upper end and the lower end of the connecting plate and the PCB. The vibrator, the supporting frame and the PCB form a mechanical vibrating unit with a natural oscillation frequency. According to the symmetric linear vibrator, a linear motor principle (without an electric brush) is utilized, thereby settling a service life problem. Furthermore resonance technology is utilized, thereby realizing quick starting, obtaining good response speed limiting and settling a response delaying problem. The upper elastic plate and the lower elastic plate are utilized so that smoother vibration effect of the oscillatoris realized, thereby realizing wider frequency response range of the product.

Description

technical field [0001] The invention relates to the field of vibrators, in particular to a symmetrical linear vibrator. Background technique [0002] Most of the traditional miniature vibrators used for tactile feedback are realized by the vibration generated by the rotation of the eccentric wheel driven by the DC motor. Since the DC motor adopts brush commutation, its life is limited by the brushes, and it is difficult to break through 200 hours. [0003] The micro brushless motor vibrator solves the problem of life, but due to the long start-up time, slow response speed and feedback delay phenomenon, the application is limited. Contents of the invention [0004] The purpose of the present invention is to provide a symmetrical linear vibrator, which can be used in game console handles or other handheld devices to provide tactile feedback. [0005] Technical scheme of the present invention is as follows: [0006] A symmetrical linear vibrator, including a base, a PCB bo...

AI Technical Summary

Problems solved by technology

Since the DC motor adopts brush commutation, its life is limited by the brush, and it is difficult to break through 200 hours

[0003] The micro brushless motor vibrator solves the life problem, but due to the long start-up time, slow response speed and feedback delay phenomenon, the application is limited

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