Linear Vibration Motor

Abstract

The invention provides a linear vibration motor, its housing, a vibration unit, an elastic member and a coil assembly, the vibration unit includes a mass block, and the mass block includes a first wall and a second wall oppositely arranged along the vibration direction perpendicular to the vibration unit ; The elastic member includes two and are respectively located on opposite sides of the vibration unit along its vibration direction, the elastic member includes a head end fixed to the housing, a tail end fixed to the mass block and connected between the head end and the tail end The elastic element in between, the head end and the tail end are located on the same side or different sides of the mass block; the elastic element includes at least two parts that surround the vibration unit from the side of the shell close to the first wall and extend to the side of the shell close to the second wall Each elastic arm and the connecting block connecting two adjacent elastic arms, all the elastic arms are connected end to end through the connecting block to form a serpentine arrangement. Compared with the related art, the linear vibrating motor of the present invention has a larger vibration amount and better and more reliable vibration performance.

Description

【Technical field】 [0001] The invention relates to a vibration motor, in particular to a linear vibration motor used in portable consumer electronic products. 【Background technique】 [0002] With the development of electronic technology, portable consumer electronic products are becoming more and more popular, such as mobile phones, handheld game consoles, navigation devices or handheld multimedia entertainment equipment, etc., generally use vibration motors for system feedback, such as mobile phone Incoming call prompts, information prompts, navigation prompts, vibration feedback of game consoles, etc. Such a wide range of applications requires high performance, good stability and long service life of the vibration motor. [0003] A linear vibration motor of the related art, which includes a housing with a housing space, a vibration unit placed in the housing space, an elastic member for suspending the vibration unit in the housing space, and an elastic member fixed to the ...

AI Technical Summary

Problems solved by technology

[0004] However, in the linear vibration motor of the related art, the elastic member only has an elastic arm, so that the stress on the elastic member is relatively large when it is deformed, which makes it difficult to further increase the working amplitude of the elastic member, which limits the linear vibration motor. vibration performance

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