Switch module group with built-in surge absorption and circuit break structure

Abstract

A switch module group with a built-in surge absorption and circuit break structure is disclosed. The main body of the switch module group is an overcurrent protection switch, and the surge absorption and circuit break structure is built in the internal space through a fireproof and high temperature resistant housing in a delicate way. The switch module group comprises a switch zone formed by a bi-joint metallic contact reed and two touch points, a surge absorption isolation region formed by placing a pressure-sensitive resistor bare chip and a terminal lug in a positioning compartment groove in the housing, and a circuit break structure brake zone formed by an elastic compression assembly and a loosen element in cooperation with a temperature-sensitive binding element. When the two touch points in the switch zone are in contact connection (ON), excess surge or high voltage lightning stroke allows the temperature of the pressure-sensitive resistor to rise to a value higher than fusing value of the temperature-sensitive binding element, the temperature-sensitive binding element fuses and triggers the loosen element subjected to back pressure to displace, and the elastic compression assembly extends to push the touch points in the switch zone and allow the two touch points to form circuit break (OFF), thereby realizing the purpose of safe power consumption.

Description

technical field [0001] The invention relates to a switch module with a built-in surge absorption and circuit breaker structure, in particular to an overcurrent protection switch with a built-in surge absorber and circuit breaker protection structure. Background technique [0002] Figure 1A and Figure 1B It discloses an existing overcurrent protection switch 10 with a contact point located on the central axis, which generally includes: a housing 11, a pressure block 12 is provided at the upper end, and a first lug 12a and a second lug 12a are disposed at the bottom end. piece 12b and the third connection piece 12c, wherein the first connection piece 12a is provided with a double metal contact reed 13 with a reversely extending piece and the first contact point 131 on the extension piece, the upper part of the second connection piece 12b is opposite to The first contact point 131 is provided with a second contact point 121 that can be in contact with it; a linkage body 14, ...

AI Technical Summary

Problems solved by technology

[0006] Therefore, in addition to the difficulty in ensuring the quality of the existing switch structure disclosed above, the risk of high temperature outside the parts, and the slow response, all of them have the limitations of too large volume and too complicated components, so more space and assembly processes are needed, so it can only be used It is implemented in an external way independent of the outside of the switch, and cannot be built into the switch, so there is still room for improvement

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