一种小尺寸厚度薄的线性振动马达

By employing a hemispherical and hemispherical groove snap-fit ​​mechanism and a piezoelectric thin film sensor in the linear vibration motor, the problem of loose connection between the magnetic bowl and the mass block is solved, and the pressure sensing function is integrated, making it suitable for ultra-small devices.

CN224520899UActive Publication Date: 2026-07-17JINLONG MASCH & ELECTRONICS DONGGUAN CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINLONG MASCH & ELECTRONICS DONGGUAN CO LTD
Filing Date
2025-07-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing linear vibration motors are prone to loosening due to adhesive fatigue under high-frequency vibration, resulting in unstable vibration amplitude, increased noise, and lack of pressure sensing function, making them difficult to adapt to ultra-small equipment.

Method used

The design employs a snap-fit ​​connection between a hemispherical ball and a hemispherical groove, combined with adhesive bonding, to enhance the connection strength between the magnetic bowl and the mass block. It also integrates a pressure sensing component inside the motor, achieving pressure detection through a piezoelectric thin film sensor.

Benefits of technology

It improves the connection strength between the magnetic bowl and the mass block, avoids loosening and noise during vibration, and integrates the pressure sensing function without taking up extra equipment space, making it suitable for ultra-small devices.

✦ Generated by Eureka AI based on patent content.

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Abstract

本实用新型属于线性振动马达技术领域,具体为一种小尺寸厚度薄的线性振动马达,包括机壳,所述机壳的底部设置有定子组件,所述机壳的内部安装有振子组件,所述机壳的顶部安装有压感组件,本实用新型通过半圆球与半圆槽的卡接配合,连接加固机构在胶水粘接基础上增加了机械咬合固定,大幅提升了磁碗与质量块的连接强度,结合导向条与导向槽的滑动导向,可有效避免振子组件在高频振动时的径向偏移,压感组件采用压电薄膜传感器配合橡胶垫的安装结构,橡胶垫既为传感器提供缓冲保护,又能聚焦用户按压的压力传递,同时,该结构将压力感应功能集成于马达内部,适配智能戒指等超小型设备的“按压调节振动”场景。
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