Surge protector tripping structure and surge protector

Abstract

The invention discloses a surge protector tripping structure and a surge protector and belongs to the technical field of circuit protection. When a single piezoresistor emits heat, soldering tin cannot be fully melted due to uneven heat conduction, and as a result, normal sliding fails, a release lever fails to operate normally, a hidden danger causing fire looms; a release structure is provided with multiple parts, complex in structure, consumes a lot of time in mounting, relatively high in cost and is poor in stability. The invention provides the following technical schemes: the surge protector tripping structure comprises a bottom shell; a cavity wall is arranged in the bottom shell; a piezoresistor is arranged on the left side of the cavity wall; a piezoresistor electrode is arranged on the piezoresistor; a first electrical connection pin is arranged at the top of the piezoresistor; and a separation plastic part is arranged on one side of the piezoresistor. According to the surge protector tripping structure and the surge protector of the invention, the height of the surge protector can be reduced, the number of parts is reduced, the installation difficulty is reduced, tripping, state indication and remote signaling triggering functions can be realized; the practicability of the surge protector tripping structure is improved; and the surge protector tripping structure is suitable for market promotion.

Description

technical field [0001] The invention relates to the technical field of circuit protection, in particular to a tripping structure of a surge protector and a surge protector. Background technique [0002] Surge protectors are suitable for power protection and signal protection in industries, construction, civil aviation, finance, securities, data centers, telecommunications, computer rooms, ports, rails and other systems, protecting the outside world (lightning strikes, electromagnetic radiation interference, etc.) or inside the system ( System pull-on effect, induction and capacitive load start and stop, etc.) caused by surge pulses and transient overvoltage damage to equipment. Under normal conditions, the varistor inside the surge protector is at a high resistance value, which is equivalent to an open circuit state. When a lightning strike occurs, the resistance value of the varistor decreases rapidly under the action of high voltage, similar to a short circuit state, throu...

AI Technical Summary

Problems solved by technology

[0003] A surge protector tripping structure and surge protector proposed by the present invention solve the problem that when the monolithic varistor is heated, the solder cannot be fully melted due to uneven heat conduction, the sliding cannot be normal, and the tripping rod cannot Normal operation, there is a hidden danger of fire, there are many parts in the tripping structure, the structure is complicated, the installation is time-consuming, the cost is relatively high, and the stability is poor.

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