Vibration motor

A technology of vibrating motor and vibrator, applied in electromechanical devices, electrical components, etc., can solve the problems of affecting product performance, shell deformation, vibrator hitting fixed part and side wall, etc., to achieve the effect of improving performance

Inactive Publication Date: 2012-01-25
AAC ACOUSTIC TECH (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the product falls, the vibration amplitude of the vibrator in the vibration space will increase sharply, causing the spring to increase its own elastic deformation, and it is easy for the vibrator to hit the fixed part and the side wall, which will not only cause deformation of the shell, and damage the spring. damaged, it will also affect the performance of the product

Method used

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] Such as figure 1 As shown, the vibration motor 10 includes a base 11 , an upper cover 12 assembled with the base 11 to form an accommodation space, a vibrator 13 accommodated in the accommodation space, a spring element 14 , and a stator 15 . In this embodiment, the stator 15 is the coil.

[0020] The base 11 is provided with a bottom wall 110 and a side wall 111 surrounding the bottom wall 110, the bottom wall 110 is provided with a through hole 101, the coil 15 is fixed on the bottom wall 110 and embedded in the through hole 101, and the coil 15 passes through the through hole 101 It is electrically connected with an external circuit to obtain a driving signal.

[0021] The vibrator 13 is provided with a mass block 130 and a permanent magnet 131. The mass block 130 is provided with a central part 301 and a reinforcement part 302 extending fro...

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Abstract

The invention provides a vibration motor, which comprises a base provided with a bottom wall and a side wall, an upper cover combined with the base so as to form an accommodation space, a spring piece accommodated in the accommodation space, and a vibrator supported by the spring piece in the accommodation space, wherein the spring piece is provided with a fixed part connected with the side wall, an elastic arm which is bent and extended out of the fixed part, and a connection part which is extended out of the elastic arm and connected with the vibrator; the upper cover is provided with a main body part covered on the base and a first flange part extended out of the main body part to the bottom wall; the first flange part is positioned in a vibration direction of the vibrator and arranged between the fixed part and the connection part of the spring piece; and the flange part is opposite to the fixed part and spaced from the fixed part at a certain distance. The vibration motor can effectively prevent overlarge amplitude and overlarge displacement of the vibrator during falling so as to avoid a phenomenon, caused by impact of the vibrator on the fixed part of the spring piece and the side wall of the base, of deformation of a shell of the vibration motor or damage to the spring piece; therefore, the performance of the vibration motor can be improved.

Description

【Technical field】 [0001] The invention relates to a vibration motor, in particular to a flat 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 and long service life of the vibration motor. [0003] The vibrating motor of the related art includes a base with a side wall, an upper cover assembled with the base, a vibrator accommodated in the base and a spring supporting the vibrator and connected with the side wall of the base. The connected fixed part, the el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K33/02H02K33/18
Inventor 董乐平许洪富周仕
Owner AAC ACOUSTIC TECH (SHENZHEN) CO LTD
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