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Circuit breaker-protecting housing

A technology for protective shells and circuit breakers, which is applied to circuits, electrical components, electric switches, etc., can solve problems such as the danger of metal powder and the insulating shell of circuit breakers, and the secondary occurrence of arcs, so as to achieve cooling, improve stability, and improve safety effect

Inactive Publication Date: 2013-10-23
万能亿工业科技发展(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the distribution box or some power supply circuits, when the circuit is closed, the closure of the circuit breaker will generate arc and high temperature, so that part of the metal gas will dissociate into the environment. If these metal powders cannot be removed in time, it may cause the arc. Secondary occurrence, serious may ignite the metal powder and the insulation casing of the circuit breaker, causing danger

Method used

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Embodiment Construction

[0021] Such as figure 1 As shown, the present invention includes an outer casing, a duct 6 and an exhaust fan 5, wherein the outer casing consists of the front casing 1 and the rear casing 2 through the connecting rod 4 to wrap the circuit breaker 3 in the casing, and the rear casing 2 is arranged near the contact position of the circuit breaker There is a duct 6, and the duct 6 is connected to the exhaust fan 5, and the high temperature and metal debris generated when the circuit breaker is closed are taken away by the exhaust fan 5, thereby improving circuit safety.

[0022] Such as figure 2 As shown, an operation hole 7 is also provided on the front case 1, which is suitable for manual operation of some manual circuit breakers.

[0023] Such as image 3 , the present invention also realizes its automatic work through a set of control circuit, the control circuit is powered by the low-voltage power supply of the distribution box, including a time relay, when the main swit...

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PUM

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Abstract

The invention discloses a circuit breaker-protecting housing. A circuit breaker is wrapped by a housing, moreover, a duct is arranged on the housing, gaseous metal or cooled metal powder and high temperature which are produced as the circuit breaker is closed are exhausted by an exhaust fan, and thereby fire or other situations as the result of the secondary excitation of arcs caused by metal powder not removed in time are effectively prevented.

Description

technical field [0001] The invention relates to a protective case for a circuit breaker, which belongs to the field of electric appliances. Background technique [0002] In the distribution box or some power supply circuits, when the circuit is closed, the closure of the circuit breaker will generate an arc and high temperature, so that part of the metal gas is released into the environment. If these metal powders cannot be removed in time, it may cause the arc. Secondary occurrence, serious may ignite the metal powder and the insulating shell of the circuit breaker, causing danger. Contents of the invention [0003] The present invention provides a technical solution capable of solving the above problems. [0004] The present invention is realized by following method: [0005] A protective case for a circuit breaker, the protective case includes a case, a duct, an exhaust fan and a control circuit, the case includes a front case and a rear case, and the front case and t...

Claims

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Application Information

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IPC IPC(8): H01H9/52
Inventor 李春林
Owner 万能亿工业科技发展(苏州)有限公司