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A linear vibrating motor

A linear vibration, motor technology, applied in the motor field, can solve the problems of limited coil turns and effective length, long motor response time, small ampere force, etc., to achieve the effect of protection from damage

Active Publication Date: 2018-11-02
GOERTEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen that the reaction force of the above-mentioned Ampere's force is the only force driving the vibration of the vibrator, but limited by the space volume of the coil, the number of turns of the coil and the effective length are limited, the Ampere's force is usually small, which is why the existing motor There is an important reason for the long response time, therefore, it is very necessary to provide a motor structure that can increase the driving force provided to the vibrator

Method used

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  • A linear vibrating motor
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Embodiment Construction

[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0034] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0035] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0036] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...

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Abstract

The invention discloses a linear vibration motor, which comprises a housing and a drive device accommodated in the housing, wherein the drive device comprises a coil and a magnet assembly; the housing is provided with a magnetic conducting part, a plane in which the coil is located is parallel to a vibration direction and the magnetic conducting part and the coil are separately arranged at two sides of the magnet assembly; and the magnet assembly comprises two radial magnets and two parallel magnets, the two radial magnets are opposite in the vibration direction, magnetization directions of the two radial magnets are opposite and are vertical to the plane in which the coil is located and the magnetization directions of the two parallel magnets are opposite and are parallel to the vibration direction, wherein one parallel magnet and the two radial magnets form a first Halbach array at one side of the coil, the other parallel magnet and the two radial magnets form a second Halbach array at one side of the magnetic conducting part, the coil is located at one side of a high-intensity magnetic field of the first Halbach array and the magnetic conducting part is located at one side of a high-intensity magnetic field of the second Halbach array.

Description

technical field [0001] The present invention relates to the technical field of motors, and more specifically, the present invention relates to a linear vibration motor. Background technique [0002] With the development of communication technology, portable electronic devices, such as mobile phones, tablet computers, and multimedia entertainment devices, have become necessities in people's lives. In these electronic devices, micro linear vibration motors are usually used for system feedback, such as vibration feedback for mobile phone call notifications. [0003] A linear vibration motor usually includes a vibrator and a stator. The vibrator further includes a mass block, a magnet assembly and shrapnel, etc. The stator further includes an FPCB, a coil, etc., wherein the coil and the FPCB are fixedly connected to the shell of the linear vibration motor, and the mass block and the magnet assembly are fixed. connected together, the shrapnel is connected between the mass block ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K33/18
CPCH02K33/18
Inventor 秦小森祖峰磊
Owner GOERTEK INC
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