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Fuse

A technology of fuses and fuses, which is applied to electrical components, circuits, emergency protection devices, etc., and can solve problems such as large arcs and difficult rapid disconnection of fuses

Active Publication Date: 2020-01-10
STATE GRID QINGHAI ELECTRIC POWER CO HAINAN POWER SUPPLY CO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009]The main purpose of the present invention is to provide a fuse to solve the problem in the related art that the fuse is not easy to disconnect quickly after being blown by overcurrent and produces a large arc

Method used

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Embodiment Construction

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0048] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include...

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Abstract

The invention provides a fuse. The fuse comprises a support assembly, a fuse wire, a first connector structure and a second connector structure. The fuse wire runs through a fuse tube. The first connector structure comprises a first connector part, a first conductive part and a first elastic piece, wherein the first conductive part and the first elastic piece are arranged on the first connector part; the first connector part is movably arranged at the first end of the fuse tube; and the first elastic piece applies elastic force away from the first end of the fuse tube to the first connector part. The second connector structure comprises a second connector part and a second elastic piece arranged on the second connector part. The first end of the fuse wire is connected to the first connector part; the second end of the fuse wire is connected to the second connector part; the first end of the fuse wire and the first connector part move synchronously; and when the fuse wire is in a fusedstate, the first connector part moves upwards, the first conductive part is separated from the first end of the support assembly, and the second elastic part is separated from the fuse wire. Accordingto the technical scheme provided by the invention, the problems that the fuse wire is not easy to break quickly after overcurrent fusing and a relatively large electric arc is generated in the related technology are effectively solved.

Description

technical field [0001] The invention relates to the field of safety tools, in particular to a fuse. Background technique [0002] Drop-out fuse is an outdoor high-voltage protection device, which is generally installed on the high-voltage side of the transformer or on the branch line of the distribution line, and is used for short-circuit and overload protection of the transformer and the line, and for dividing and closing the load current. Drop-out fuse is one of the most commonly used protective components in power systems at present. Its working principle is that after the current exceeds the specified value for a period of time, the heat generated by the fuse itself will melt the melt, thereby disconnecting the circuit and protecting the electrical system. The role of the device. Features of dropout fuses: simple structure, effective, cheap, durable, easy to install, etc. [0003] In the prior art, a high-voltage drop-out fuse consists of three parts: an insulating sup...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H85/05H01H85/055
CPCH01H85/05H01H85/055
Inventor 束楠陈军强田洪滨马振刚余鑫昌张永海马俊
Owner STATE GRID QINGHAI ELECTRIC POWER CO HAINAN POWER SUPPLY CO
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