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A safety fuse for easy replacement of melt

A fuse and melt technology, used in emergency protection devices, circuits, electrical components, etc., can solve the problem of frequent replacement of refractory melts, achieve efficient and safe replacement of melts, avoid disassembly of fuses, and achieve reuse. Effect

Active Publication Date: 2021-11-12
国网福建省电力有限公司将乐县供电公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem in the prior art that it is difficult to frequently replace the melt in the fuse, and propose a safety fuse that is easy to replace the melt

Method used

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  • A safety fuse for easy replacement of melt
  • A safety fuse for easy replacement of melt
  • A safety fuse for easy replacement of melt

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Embodiment Construction

[0025] 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.

[0026] refer to Figure 1-6 , a safety fuse for easy replacement of the melt, including a housing 1, two brackets 2 and a vertical pipe 3 are integrally connected to the housing 1, and the corresponding sliding sleeves of the two brackets 2 are provided with a lead 5, the two Each lead 5 is connected with a lead wire 4 extending to the two ends of the shell 1, the lead 4 is an external wire, and the two lead 5 are fixedly provided with a connected temperature-sensitive plate 6 and a memory spring 7, The temperature-sensing plate 6 has good thermal conductivity, and can quickly transfer high-temperature heat caused by overload or short circuit to the memory spring 7. ...

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Abstract

The invention discloses a safety fuse which is easy to replace melt, which comprises a casing. The present invention utilizes the connected temperature-sensing plate and the memory spring in the housing to actively support the connector, and sets a vertical pipe between the two connectors that can transport the melt vertically, so that the fuse will not melt when the fuse is disconnected or overloaded. The body is melted and the leader is withdrawn to form an open circuit protection; by setting a casing connected to the standpipe at the upper end of the casing, the cover connected to the casing thread is used to conveniently install the spare melt, so that the spare melt can be used one by one after the fuse is broken. Enter into the vertical pipe; avoid dismantling the fuse as a whole; by connecting the deflectable telescopic rod on the outer wall of the vertical pipe, the horizontally movable temperature sensing plate is used to pull and push the limit rod slidingly sleeved in the vertical pipe through the telescopic rod, Therefore, it is convenient to limit or release the spare melt in the standpipe, and the spare melt can be reconnected with the two joints under the condition of access, thereby automatically restoring the circuit access state.

Description

technical field [0001] The invention relates to the technical field of circuit safety maintenance, in particular to a safety fuse which is convenient for replacing melt. Background technique [0002] A fuse is an electrical appliance that fuses the fuse with the heat generated by itself and disconnects the circuit when the current exceeds the specified value. The fuses under the traditional technology are mostly made of metal conductors as melts connected in series in the circuit. When overload or short-circuit current passes through the melts, they will be fused due to their own heating, and the current will be cut off by forming a circuit breaker structure, thus providing the overall circuit with Power failure protection. [0003] When repairing the broken circuit in the later stage, the melt in the fuse or the entire fuse is generally replaced, but no matter which method is used, it has certain disadvantages, especially for people who lack circuit knowledge. It is even ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H85/22
CPCH01H85/22
Inventor 曹欢
Owner 国网福建省电力有限公司将乐县供电公司
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