一种基于直线微马达的交流接触器辅助触头
By replacing the auxiliary contacts of traditional AC contactors with linear micromotors and tunnel magnetoresistive switch chips, the problem of fixed contact forms is solved, enabling flexible switching of contact types and increases or decreases in the number of contacts, and simplifying the assembly process.
CN115360062BActive Publication Date: 2026-07-17SHANGHAI HANGYI HI TECH DEV RES INST CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI HANGYI HI TECH DEV RES INST CO LTD
- Filing Date
- 2022-03-18
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
The existing auxiliary contact structure of AC contactors is not reasonable enough. The contact form is fixed, the number is limited, and the assembly is troublesome.
Method used
A linear micromotor module and a tunnel magnetoresistive switch chip are used to replace the traditional auxiliary contacts. The switching between normally open and normally closed contacts is achieved by the linear motion of the magnetic mover of the micromotor and the magnetic field change of the tunnel magnetoresistive switch chip, thereby increasing or decreasing the number of contacts.
Benefits of technology
It enables flexible switching of contact types, simplifies the assembly process, and increases the number and reliability of auxiliary contacts.
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Figure CN115360062B_ABST
Abstract
本申请公开了一种基于直线微马达的交流接触器辅助触头，其特征在于，包括直线微马达模块和隧道磁阻开关芯片；所述直线微马达模块包括微马达磁性动子和驱动微马达磁性动子移动的底线圈；所述底线圈和所述交流接触器的主触头线圈同步通断电，底线圈通电驱动微马达磁性动子向上运动，底线圈断电微马达磁性动子受重力作用回到底部，所述隧道磁阻开关芯片设于直线微马达模块的上部或下部，所述隧道磁阻开关芯片在微马达磁性动子靠近时磁场增强输出低电平，在微马达磁性动子远离时磁场减弱输出高电平。本申请可以通过调节隧道磁阻开关芯片相对直线微马达模块的安装位置进行辅助触头的常开触头和常闭触头的类型切换。
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