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Plateau-type fuse

A fuse and high-altitude technology, which is applied in the direction of electrical components, circuits, emergency protection devices, etc., can solve the problems of jet-type fuses, such as the limitation of pressure resistance performance and the inability to use in high altitude areas, to achieve the effect of good voltage resistance performance

Inactive Publication Date: 2017-12-29
北京索弗电气科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a plateau type fuse to solve the problem that the existing spray type fuse cannot be used in high altitude areas due to the limitation of withstand voltage performance

Method used

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Examples

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Embodiment 1

[0023] like figure 1 As shown, the plateau type fuse includes an insulator body 8 , a fuse barrel 72 , an insulating barrel 73 , a lower electrode fixing ring 79 , an upper electrode 74 and a sealing assembly 9 . The plateau type fuse of the present invention improves the voltage resistance of the fuse by extending the overall length of the insulator body 8, the fuse cylinder 72, the insulation cylinder 73 and the fuse, and increases the creepage distance, so that it can be used in a plateau environment .

[0024] like figure 2 , 3 , 4, the fuse barrel 72 is set inside the insulator body 8, and the fuse barrel 72 includes a fuse barrel cover 1, a fuse assembly 2, an arc suppression barrel 3, a lower contact metal 4, a connecting sleeve 7, a spring 5 and the bottom sleeve 6, the fuse assembly 2 includes a fuse 21 and a metal lead 22, the fuse 21 can be blown when the line is overloaded or short-circuited, and the line is disconnected, so as to achieve the purpose of protect...

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Abstract

The present invention relates to a plateau-type fuse. The plateau-type fuse comprises an insulator body, a fuse cylinder, an insulation cylinder, a lower electrode fixing ring, an upper electrode and a seal module. The insulator body is a diameter-variable tubular structure, at least five annular umbrella skirts are arranged at the outer peripheral surface of the insulator body, a through hole is arranged at the outer peripheral surface of a position where the insulator body being close to a lower port, the fuse cylinder is arranged at the internal portion of the insulator body, and the insulator cylinder is sleeved at the upper end of the fuse cylinder; the lower electrode fixing ring is fixedly sleeved at the periphery of a contact metal arranged at the lower portion of the fuse cylinder and is clamped at the inner wall of the insulator body; the contact metal arranged at the lower portion of the fuse cylinder is connected with a lower cable in the through hole; the upper electrode is installed at the upper end of the internal portion of the insulator body and is in contact with the fuse cylinder tube cap of the fuse cylinder; and the upper electrode is connected with an upper cable, and the seal module is installed at the internal portion of the lower port of the insulator body. The plateau-type fuse is good in pressure-resistant performance and can be used in the plateau environment.

Description

technical field [0001] The invention relates to the technical field of circuit protection devices, in particular to a plateau type fuse. 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. Therefore, it is widely used in high and low voltage power distribution systems, control systems and electrical equipment, as a short circuit and overcurrent protector, and is one of the most commonly used protection devices. [0003] Among them, the high-voltage jet fuse is an outdoor high-voltage protection device and one of the important equipment in the distribution line. It is installed on the high-voltage side of the distribution transformer or on the branch line of the distribution line, and is used as short-circuit and overload protection for the transformer and the line. Splitting and combining load currents are connected in series in the pro...

Claims

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Application Information

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IPC IPC(8): H01H85/042H01H85/20H01H85/22
CPCH01H85/042H01H85/2045H01H85/22
Inventor 包泗强窦元剑
Owner 北京索弗电气科技有限公司
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