Thermal shrinkage terminal

Abstract

The invention relates to a thermal shrinkage terminal, which comprises a connecting column, a first blind hole, a second blind hole, at least two first long grooves, at least two second long grooves and a thermal shrinkage type transparent bushing, wherein the first blind hole and the second blind hole are formed in the two end faces of the connecting column respectively; the first long grooves are formed in the side wall of the connecting column, the second long grooves and the thermal shrinkage type transparent bushing are arranged on the side wall of the connecting column, the thermal shrinkage type transparent bushing comprises a first part sleeving the connecting column, and a second part and a third part which respectively extend outwards from two ends of the first part, a first thermal shrinkage ring is arranged on the inner wall of the second part, a second thermal shrinkage ring is arranged on the inner wall of the third part, and the surface of the first thermal shrinkage ring and the surface of the second thermal shrinkage ring are both coated with a wet water color-changing pigment. The thermal shrinkage terminal is used for connection of electrical circuits, can display water vapor infiltration, and provides a reference basis for maintenance or replacement.

Description

technical field [0001] The present application relates to the technical field of connection terminals, in particular to a heat-shrinkable terminal. Background technique [0002] Heat-shrinkable terminals are used for electrical circuit connections and have the functions of insulation, waterproof and stress protection. Most of the existing heat-shrinkable terminals have an integrated structure. After the connected wires are inserted into the inner metal tube from both sides, the heat-shrinkable tube wrapped outside the metal tube is heated with a heat gun or other heatable methods to make it close to the metal tube. on the wire. [0003] The heat-shrinkable tube and the wire cannot be completely bonded, and during use, as the heat-shrinkable tube ages, the gap between the two will gradually increase. After the gap increases, water vapor will enter, resulting in cracks at the connection. performance degradation or even failure. Contents of the invention [0004] In view o...

AI Technical Summary

Problems solved by technology

[0003] The heat-shrinkable tube and the wire cannot be completely bonded, and during use, as the heat-shrinkable tube ages, the gap between the two will gradually increase. After the gap increases, water vapor will enter, resulting in cracks at the connection. Reduced performance or even failure

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