Fuse

Abstract

The invention discloses a fuse. The fuse comprises a ceramic tube body and a fuse wire arranged in the ceramic tube. The ceramic tube body comprises an upper half tube body and a lower half tube body,a plurality of blockage blocks are arranged in the inner wall of the upper half tube body and the inner wall of the lower half tube body in a protruding mode, the fuse wire is in a curved curve shapeunder blockage of the blockage blocks, a plurality of first springs are arranged between the upper half tube body and the lower half tube body, the two ends of the ceramic tube body extends into endcovers correspondingly, limiting protrusions are arranged on the inner walls of the end caps, a limiting groove is formed in the ceramic tube body, clamping parts corresponding to the fuse wire are arranged at the two ends of ceramic tube body correspondingly, the clamping parts comprise at least two clamping plates, one ends of the clamping plates are hinged to the ceramic tube body, the other ends of the clamping plates extend in the direction away from the ceramic tube body, and pressing rings compressing the clamping parts in the axial direction of the ceramic tube body are arranged in thecaps. Replacing operation on the fuse wire is relatively easy and convenient, it can be ensured that the ceramic tube body is reused repeatedly, and waste of resources is effectively reduced.

Description

technical field [0001] The present invention relates to the technical field of safety devices, in particular to a fuse. Background technique [0002] The function of the fuse is that when the circuit fails or is abnormal, the current will continue to rise, and the rising current may damage some important components in the circuit, and may burn the circuit or even cause a fire. If the fuse is correctly placed in the circuit, the fuse will fuse itself to cut off the current when the current abnormally rises to a certain height and heat, thereby protecting the safe operation of the circuit. That is to say, when the fuse is energized, the heat converted from electric energy makes the temperature of the meltable body rise. When the normal working current or the allowable overload current passes, the heat generated passes through the fusible body, and the outer casing radiates to the surrounding environment. Through convection and conduction, the heat emitted and the heat generat...

AI Technical Summary

Problems solved by technology

[0003] Existing fuses include tube bodies, fuses, end caps, etc. This kind of fuse is a disposable structure. When the fuse in the tube is blown, the fuse is scrapped and cannot be recycled, resulting in waste of resources.

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