Novel surge protector

Abstract

The invention discloses a novel surge protector. The novel surge protector comprises a first electrode, a second electrode and a shell, wherein the shell is of a hollow structure, the first electrode and the second electrode are respectively and detachably connected with two ends of the shell, the first electrode comprises a connection part and a conduction part which are integratedly formed, the conduction part extends into the shell and is connected with the second electrode by a piezoresistor fixedly connected with the bottom, the conductive part comprises an extension electrode, a low-temperature hot melting fuse post and a diversion electrode, one end of the low-temperature hot melting fuse post is connected to the bottom of the extension electrode in a clamping way, and the other end of the low-temperature hot melting fuse post is connected with the diversion electrode in a clamping way. The novel surge protector is simple in structure and is convenient to use, the low-temperature hot melting fuse post is molten when a system exceeds a working temperature due to a fault of the piezoresistor of the surge protector, so that the extension electrode and the piezoresistor are disconnected to cause open circuit of the system, and the purpose of separating the device from the system is achieved.

Description

technical field [0001] The invention relates to the field of lightning protection, in particular to a novel surge protector Background technique [0002] Surge protector, also known as lightning arrester or surge protector, referred to as (SPD) is suitable for AC 50 / 60HZ, rated voltage to 380V power supply system or communication system, under normal circumstances, it is in a high impedance state, while Once the line surges due to lightning strikes or other reasons, it will be turned on in a very short time, and the lightning current or overvoltage will be introduced into the earth through the grounding line to protect the equipment on the line; the existing surge protection The device junction mostly adopts a low-temperature tripping structure. The traditional surge protector of this structure has a mechanical tripping mechanism with a spring connected in series between the electrode and the varistor. The tolerance deviation of the mechanical structure causes the inability...

AI Technical Summary

Problems solved by technology

[0002] Surge protector, also known as lightning arrester or surge protector, referred to as (SPD) is suitable for AC 50 / 60HZ, rated voltage up to 380V power supply system or communication system, under normal circumstances, it is in a high impedance state, while Once the line surges due to lightning strikes or other reasons, it will be turned on in a very short time, and the lightning current or overvoltage will be introduced into the earth through the grounding line to protect the equipment on the line; the existing surge protection The device junction mostly adopts a low-temperature tripping structure. The traditional surge protector of this structure has a mechanical tripping mechanism with a spring connected in series between the electrode and the varistor. The tolerance deviation of the mechanical structure makes it impossible to trip, which brings inconvenience to the user

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