Self-recovery type circuit protection fuse

A circuit protection and self-recovery technology, applied in the direction of air switch components, etc., can solve problems such as line influence, achieve the effects of reducing damage, realizing quick disconnection, and realizing recovery

Active Publication Date: 2021-07-02
诸暨市东白电力安装工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that ordinary fuses in the prior art need to be

Method used

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  • Self-recovery type circuit protection fuse
  • Self-recovery type circuit protection fuse
  • Self-recovery type circuit protection fuse

Examples

Experimental program
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Embodiment

[0023] refer to Figure 1-4 , a self-recovery fuse for circuit protection, comprising a protection box 1, the inner wall of the protection box 1 is insulated, the inner wall of the protection box 1 is sealed and slidably connected to a power connection plate 2, and the power connection plate 2 and the inner wall of the protection box 1 are reset through multiple resets. The spring 3 is connected, the side wall of the power connection plate 2 is provided with the first power connection block 4, the left wall of the power connection plate 2 connects the first power connection block 4 and the second power connection block 6, and the other parts of the power connection plate 2 All are insulated, and the top of the protection box 1 is provided with a sliding cavity 5, and the inner walls of the two ends of the sliding cavity 5 are respectively slidably connected with the second connecting block 6 and the bump 7, and the second connecting block 6 is in contact with the connecting pla...

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PUM

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Abstract

A self-recovery type circuit protection fuse disclosed by the present invention comprises a protection box; the inner wall of the protection box is in sealed sliding connection with a power connection plate, the power connection plate is connected with the inner wall of the protection box through a plurality of reset springs, the side wall of the power connection plate is provided with a first power connection block, and the top in the protection box is provided with a sliding cavity. The inner walls of the two ends of the sliding cavity are slidably connected with a second power connection block and a protruding block correspondingly, the second power connection block abuts against the power connection plate, the second power connection block is connected with the protruding block through a connecting plate, and a plurality of guide columns are welded to the inner wall of the sliding cavity and are slidably connected with the connecting plate in a penetrating mode. The fuse has the advantages that when current in a circuit is too large, the magnetic sliding plate jacks up the convex block, so the second power connection block can be separated from the power connection plate, the fuse is in a disconnected state, the circuit can be protected, the fuse can be disconnected without heat, and damage to the circuit caused by the heat can be reduced.

Description

technical field [0001] The invention relates to the technical field of fuses, in particular to a self-restoring fuse for circuit protection. Background technique [0002] Fuse refers to an electrical appliance that fuses the melt and disconnects the circuit with the heat generated by itself when the current exceeds the specified value. Fuse is widely used in high and low voltage power distribution systems, control systems and electrical equipment as a short circuit and overcurrent protectors are one of the most commonly used protection devices; [0003] Ordinary fuses in modern life are controlled by fuses, so they need to be replaced manually after the fuses are disconnected. In order to prevent electric shock, fuses are generally placed at a higher position, which causes greater trouble in replacement. Most of the existing self-recovery fuses use the heat generated by themselves to disconnect them, and then recover after the heat is dissipated. Using the heat generated by...

Claims

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Application Information

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IPC IPC(8): H01H31/02
CPCH01H31/02
Inventor 程志
Owner 诸暨市东白电力安装工程有限公司
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