Switch with arc discharge protection

A switch and tube bending technology, which is applied in the field of switches with arc protection, can solve the problems of reducing the reliability of work, affecting the life of devices, and wear between contacts, so as to achieve long service life, high safety and normal operation of the switch. Effect

Inactive Publication Date: 2021-01-05
杭州欣禾工程管理咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the life of the device is affected by the wear and material erosion between the contacts caused by arcing during the switching process of the electrical switch, and the reliability of the work is greatly reduced, the present invention adopts the following technical solution

Method used

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  • Switch with arc discharge protection
  • Switch with arc discharge protection
  • Switch with arc discharge protection

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Embodiment Construction

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application. The accompanying drawings in the embodiments of the present application: the different types of section lines in the drawings are not marked according to the national standard, and the material of the components is not required, but the cross-sectional views of the components in the drawings are distinguished.

[0028] see Figure 1-3 A switch with arc protection is shown, which is a switch with arc protection for protecting the switch from being damaged by arc. ...

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Abstract

The invention belongs to the technical field of electrical switches, and relates to a switch with arc discharge protection. The switch is characterized by comprising a base, a W-shaped bent pipe, a waterproof breathable film and an air pump; the W-shaped bent pipe is a hollow bent pipe with two wave troughs and one wave crest and comprises a first end and a second end; a vent hole is formed in thewave crest of the W-shaped bent pipe; the waterproof breathable film is fixedly connected with the inner wall of the vent hole and completely covers the vent hole; pistons are respectively connectedto the inner walls of the first end and the second end of the W-shaped bent pipe and can slide up and down along the inner walls of the first end and the second end; the wave trough end of the W-shaped bent pipe is fixedly connected with the upper end face of the base; the first end and the second end of the W-shaped bent pipe are connected with the air pump through air pipes respectively. The switch is simple in structure, convenient to use, long in service life and high in safety. The on-off of a circuit is controlled through on-off of liquid metal, so that direct on-off between contacts isavoided, arc discharge can only be formed between the liquid metal, and the contacts of the switch are protected against damage caused by the influence of the arc discharge.

Description

technical field [0001] The invention belongs to the technical field of electrical switches, and in particular relates to a switch with arc protection. Background technique [0002] With the expansion of industrial and agricultural production, various types of high-power equipment are used in production, some inductive loads (such as motor units, compressors, pumps, transformers, etc.), capacitive loads (such as compensation capacitors), their power It can range from thousands of watts to tens of kilowatts or even higher. Due to its own voltage and current characteristics, the short-term current when it is started and disconnected can reach several times the current during normal operation. Knife switches often have obvious arc discharge. When a general switch is arc-discharged, the surface temperature of the arc is three to four thousand degrees Celsius, and the center temperature can reach tens of thousands of degrees Celsius. Burnt electrical insulation near the arc. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H29/28H01H29/04
CPCH01H29/04H01H29/28
Inventor 李杰
Owner 杭州欣禾工程管理咨询有限公司
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