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Linear vibration motor

A technology of linear vibration and vibration unit, which is applied in the direction of electrical components, electromechanical devices, etc., can solve the problems of limiting the vibration performance of linear vibration motors, large stress, and difficulty in further improving the working amplitude of elastic parts, so as to improve the vibration volume and vibration performance, Good amplitude performance, simple processing and assembly

Inactive Publication Date: 2020-05-29
AAC MICROTECH CHANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] Please also in Figure 1-5 As shown, the present invention provides a linear vibration motor 100 . The linear vibration motor 100 includes a housing 1 with a receiving space 10 , a vibration unit 2 , an elastic member 3 and a coil assembly 4 . Wherein, the coil assembly 4 is fixed on the casing 1 and drives the vibration unit 2 to vibrate.

[0030] The housing 1 has a receiving space 10 . In this embodiment, the housing 1 includes a bottom plate 11 a...

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Abstract

The invention provides a linear vibration motor which comprises a shell, a vibration unit, elastic pieces and a coil assembly. The vibration unit comprises a mass block, and the mass block comprises afirst wall and a second wall which are oppositely arranged along a vibration direction perpendicular to the vibration unit; the two elastic pieces are located on two opposite sides of the vibration unit in the vibration direction of the vibration unit respectively, each elastic piece comprises a head end fixed to the shell, a tail end fixed to the mass block and an elastic element connected between the head end and the tail end, and the head end and the tail end are located on the same side or different sides of the mass block; the elastic element comprises at least two elastic arms which surround the vibration unit from one side, close to the first wall, of the shell and extend to one side, close to the second wall, of the shell, and connecting blocks for connecting the two adjacent elastic arms; and all the elastic arms are sequentially connected end to end through the connecting blocks to form snake-shaped arrangement. Compared with the prior art, the linear vibration motor in theinvention is large in vibration quantity and better and more reliable in 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K33/02
CPCH02K33/02
Inventor 毛路斌
Owner AAC MICROTECH CHANGZHOU
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