Low-voltage compound fuse with melt capable of being replaced without disassembly

Abstract

The invention discloses a low-voltage compound fuse with a melt capable of being replaced without disassembly. The low-voltage compound fuse comprises a shell, wherein a conducting wire is inserted into the side surface of the shell, a main melt is arranged in the conducting wire, an auxiliary melt is arranged above the main melt, the top of the auxiliary melt is fixedly connected with an air spring, the side surface of the air spring is fixedly connected with an air guide pipe, a wind baffle is inserted into the side face of the air guide pipe, a pull rod is fixedly connected to the top of the wind baffle, a torsion wheel is arranged on the side, away from a mercury pipe, of a screw rod, a stop lever is fixedly connected to the surface of the torsion wheel, a clamping block is slidably connected to the side, away from the wheel center, of the stop lever, and a scraping wheel is arranged on the side, away from the wheel center, of the clamping block. According to the low-voltage compound fuse with the melt capable of being replaced without disassembly, the mercury pipe and the bearing wheel are matched for use, so that the fuse can be automatically replaced when the melt is fused,and the fuse does not need to be disassembled to supplement a new melt.

Description

technical field [0001] The invention relates to the technical field of AC power distribution equipment, in particular to a low-voltage compound fuse that can be replaced without disassembly. Background technique [0002] AC power distribution equipment is used to connect power supply, transformer, converter equipment and other loads, and monitor and protect the power supply system. The control functions of the operation mode, such as protection, measurement, alarm and power factor compensation, etc. [0003] As a kind of power distribution equipment, fuses are used in power protection. The principle is that when the circuit is overloaded, the fuse will automatically fuse to prevent circuit overload accidents. However, after the fuse is blown, it is necessary to disassemble the fuse and add a new fuse. , resulting in a short service life of each fuse, and the disassembly is more complicated, so it is necessary to design a new type of fuse that can replace the fuse to increas...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a low-voltage compound fuse that does not need to be disassembled to replace the melt, which has the advantages of automatic replacement when the fuse is blown, so that the fuse does not need to be disassembled to replenish new melt, etc., which solves the problem of After the existing fuse is melted, the fuse needs to be disassembled and a new fuse should be added, which causes the problem that the service life of each fuse is short

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