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Vibration motor

A technology of vibrating motors and vibrators, applied in electrical components, electromechanical devices, etc.

Inactive Publication Date: 2016-07-06
AAC MICROTECH CHANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there is only one resonance frequency when the coil-driven vibration motor vibrates, so when the vibration motor needs multiple resonance frequencies to adapt to different working conditions, the existing vibration motor cannot meet the demand

Method used

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] Please also see figure 1 with figure 2 ,in figure 1 It is a three-dimensional exploded view of an embodiment of the vibration motor provided by the present invention. figure 2 yes figure 1 A schematic diagram of the partially assembled structure of the vibration motor shown. The vibration motor 100 includes a housing 1 with a bottom wall and side walls vertical to the bottom wall, a bottom plate 2 , a vibrating component 3 , a coil unit 4 , an elastic support unit 5 and a pole piece 6 . The casing 1 and the bottom plate 2 are assembled to form a receiving space, and the vibrating component 3 , the elastic support unit 5 and the pole pieces 6 are stored in the receiving space. The elastic support unit 5 suspends the vibrating component 3 in the accommodation space, the coil unit 4 is located on the bottom wall of the casing 1, and the pole ...

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Abstract

The invention provides a vibration motor, which comprises a shell, a vibrator, an elastic support unit and a coil unit, wherein the shell is provided with a bottom wall and lateral walls; the lateral walls are arranged vertically to the bottom wall; the vibrator is accommodated into the shell; the vibrator is suspended in the elastic support unit; the coil unit is arranged on the bottom wall and arranged oppositely to the vibrator at an interval; the vibrator comprises a mass block, a first magnetic steel assembly and a second magnetic steel assembly; the first magnetic steel assembly and the second magnetic steel assembly are embedded into the mass block; the magnetic steel assemblies and the coil unit are arranged at an interval; the second magnetic steel assembly is arranged vertically to the direction in which the first magnetic steel assembly is arranged; the coil unit comprises a first coil and a second coil, which correspond to the first magnetic steel assembly and the second magnetic steel assembly respectively; the first coil can drive the first magnetic steel assembly to carry out round-trip vibration along a first direction, parallel to the coil unit, of the first magnetic steel assembly; the second coil can drive the second magnetic steel assembly to carry out round-trip vibration along a second direction parallel to the coil unit; and the first direction is vertical to the second direction. The vibration motor provided by the invention has multiple resonant frequencies.

Description

technical field [0001] The invention relates to a vibration motor, in particular to a vibration motor used in portable consumer electronic products. Background technique [0002] With the development of electronic technology, portable consumer electronic products are more and more sought after by people, 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. [0003] Due to the trend of thinner and lighter consumer electronic products, it is required that the size of the vibration motor in the above electronic products should be reduced. The vibrating motor related to the present invention mainly includes a housing provided with an accommodating space, a coil accommodated in the housing, an elastic support connected to the housing, an...

Claims

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Application Information

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