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Self-recovery fuse

A fuse, self-recovery technology, applied in the direction of electrical components, circuits, emergency protection devices, etc., can solve the problem of inconvenient use of fuses, and achieve the effect of good circuit, fast response, and circuit protection

Inactive Publication Date: 2020-08-07
吴军
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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 of inconvenient use of fuses in the prior art, and propose a self-resetting fuse

Method used

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Embodiment

[0019] refer to Figure 1-3 , a self-restoring fuse, including a housing 1, a reaction box 2 is fixed inside the housing 1, and two symmetrically arranged inner connection blocks 3 are fixed through the inner wall of the reaction box 2, and the two inner connection blocks 3 are far away from the reaction One side of the box 2 is fixed with a connection spring 4, and the inner wall of the shell 1 is fixed with two symmetrically arranged external connection blocks 5, and the two external connection blocks 5 are respectively offset by the two connection springs 4, and the reaction box 2 The inner wall of the lower part is fixed with an elastic membrane 6, the inner top of the housing 1 is fixed with a drip box 7, the outer wall of the lower part of the drop box 7 is fixed with a connecting spring 8, and the bottom of the connecting spring 8 is fixed with a T-shaped counterweight 9. The inner wall of the box 7 is fixed with a baffle plate 10, and the upper end of the baffle plate ...

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Abstract

The invention discloses a self-recovery fuse including a shell, a reaction box is fixed in the shell; two symmetrically arranged internal power connection blocks are fixed on an inner wall of the reaction box in a penetrating manner; and power connection springs are fixed to the sides, away from the reaction box, of the two internal power connection blocks correspondingly, two symmetrically-arranged external power connection blocks are fixed to the inner wall of the shell in a penetrating mode, the two external power connection blocks abut against the two power connection springs correspondingly, and an elastic film is fixed to an inner wall of the lower portion of the reaction box. The fuse has the advantages that through the internal power connection blocks and the external power connection blocks, when short-circuit overload occurs in an external circuit and the current is sharply increased, the power connection springs contract to a certain extent, so that the internal power connection blocks and the external power connection blocks are electrically disconnected, the external circuit is powered off, an external electric appliance and the circuit are protected, the deformation speed of the power connection springs is relatively high, and compared with existing heating power failure, the self-recovery fuse has better timeliness and can better protect the circuit.

Description

technical field [0001] The invention relates to the technical field of fuses, in particular to a self-resetting fuse. 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; device. [0003] The current fuses mainly include disposable fuses and resettable fuses; once the current disposable fuses are blown, they need to be replaced as a whole, which is very inconvenient, and artificial replacement is very inconvenient, and there are certain safety hazards; The main form of the resettable fuse is a bimetallic strip thermal relay, and its on-off parts are composed of bimetallic strips with different thermal deformation coefficients. When the current is too large and the temperature of the bimetallic strip is too high, the bimetallic strip is deformed due to deformation Disconnect the contact and connect it after cooling down; however, th...

Claims

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Application Information

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IPC IPC(8): H01H85/06H01H85/26
CPCH01H85/06H01H85/26
Inventor 吴军张琼
Owner 吴军
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