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vibration motor

A vibration motor and mover technology, applied in the field of motors, can solve problems such as difficulty and low resonance frequency, and achieve the effect of low resonance frequency and low elastic stiffness

Active Publication Date: 2021-08-10
AAC TECH PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to simultaneously achieve a low resonance frequency f0, the stiffness of the supporting vibrator and good reliability at large strokes

Method used

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] Please refer to Figure 1-Figure 4 , the present invention provides a vibrating motor 100, comprising a casing 1, a stator installed in the casing 1 and a mover that can move relative to the stator, the mover includes a first magnet 21 and a second magnet 21 arranged side by side along the moving direction Two magnetic steels 22, the stator includes coils 3 wound outside the adjacent two ends of the first magnetic steel 21 and the second magnetic steel 22, and the vibration motor 100 also includes two opposite inner wall surfaces installed on the shell 1 and respectively connected to The opposite ends of the first magnet 21 and the second magnet 22 are opposite to each other and the third magnet 23 and the fourth magnet 24 are arranged at intervals.

[0024] The first magnet 21 and the second magnet 22 adopt symmetrical repelling magnets. The ma...

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Abstract

The invention provides a vibration motor, which includes a casing, a stator installed in the casing, and a mover that can move relative to the stator. The mover includes a first magnet and a second magnet arranged side by side along the movement direction of the mover. The stator includes coils wound around two adjacent ends of the first magnet and the second magnet. The vibration motor also includes coils that are installed on two opposite inner wall surfaces of the housing and are respectively connected to the first magnet and the second magnet. The third magnetic steel and the fourth magnetic steel are arranged at opposite ends and spaced apart from each other. The third magnetic steel and the fourth magnetic steel provide elastic restoring force for the reciprocating motion of the mover. When the coil is energized, the first magnet and the second magnet move along the axial direction of the coil, hit the third magnet or the fourth magnet and then rebound, forming a back-and-forth impact motion. Because the third magnet or the fourth magnet Magnetic steel can be made very thin, with small elastic stiffness, and can achieve a low resonance frequency f0.

Description

【Technical field】 [0001] The invention relates to the field of motors, in particular to vibration motors. 【Background technique】 [0002] The tactile feedback vibration motor of the game handle in the prior art uses a mechanical shrapnel structure as an elastic and supporting component. The existing mechanical shrapnel structure needs to obtain a low resonance frequency f0, and to achieve a large vibration amount, the vibration displacement must be large. The mechanical shrapnel structure is in There are reliability problems under large displacement. It is difficult to simultaneously achieve a lower resonance frequency f0, the stiffness of the supporting vibrator and good reliability under a large stroke. [0003] Therefore, it is necessary to provide a method to achieve a lower resonance frequency f0, the stiffness of the supporting vibrator and good reliability under a large stroke. 【Content of invention】 [0004] The purpose of the present invention is to provide a vi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K33/10H02K1/34
CPCH02K1/34H02K33/10
Inventor 李刚陈凯吴瑶
Owner AAC TECH PTE LTD
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