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Flat linear vibration motor

A linear vibration, flat technology, applied in electrical components, electromechanical devices, etc., can solve the problems of fatigue, failure elasticity, affecting motor performance and service life, etc., to improve performance, avoid the influence of motor performance and life, and improve magnetic utilization. rate effect

Active Publication Date: 2015-05-13
AAC MICROTECH CHANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the vibration unit of the vibration motor with this structure is prone to shaking, and the spring will also fail and elastic fatigue after long-term use, which will affect the performance and service life of the motor.
In addition, the driving coils of the vibration motor with this structure are all arranged at intervals on one side of the vibration unit. This assembly method makes the electromagnetic driving force generated by the driving coil insufficient.

Method used

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Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] Such as figure 1 , 2 As shown in and 3, it is a flat linear vibration motor 1 provided by the present invention, which includes an elongated housing 10 with an accommodating space 100 inside, a housing fixed to the housing 10 accommodated in the accommodating space 100 The first magnet 11, the vibration unit 12 suspended in the housing 10, and the second magnet 13 fixed to the housing 10, wherein the first magnet 11, the vibration unit 12 and the second magnet The steel 13 is arranged in sequence along the vibration direction X-X of the vibration unit 12 .

[0023] The casing 10 includes an upper casing 101 and a lower casing 102 that cooperates with the upper casing 101 to form the accommodation space 100 , and the lower casing 102 includes a bottom wall 1020 and a side wall 1021 extending from the bottom wall 1020 , specifically as figure 1 shown. The f...

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Abstract

The invention discloses a flat linear vibration motor. The flat linear vibration motor comprises a shell internally equipped with accommodating space, a vibration unit accommodated in the accommodating space and suspended in the shell, and a sliding pair arranged between the vibration unit and the shell; the vibration motor further comprises an annular drive coil which is annularly arranged on the periphery of the vibration unit and used for driving the vibration unit to circularly vibrate along the vibration direction, and the driving coil drives the vibration unit to circularly vibrate along the vibration direction of the vibration unit after being electrified. The flat linear vibration motor is characterized in that restoring force is provided by repulsive force relatively generated by the same poles of the magnetic steel, the vibration unit is positioned by the sliding pair, and the drive coil is configured into a ring shape and annularly arranged on the periphery of the magnetic steel to improve the magnetic utilization rate, so that performance and service life of the motor cannot be affected when spring parts of a traditional motor are ineffective and fatigue, and the performance of the vibration motor is effectively increased.

Description

【Technical field】 [0001] The invention relates to a vibration motor, in particular to a flat 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. These electronic products generally use vibration motors for system feedback. Such as mobile phone 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 in the related art includes a housing, a vibration unit accommodated in the housing and a spring member, the spring member is used to suspend the vibration unit in the housing, and the spring member is used to provide rest...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K33/18
CPCH02K33/16
Inventor 王洪兴毛路斌郭顺
Owner AAC MICROTECH CHANGZHOU
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