Circuit breaker device

A technology of circuit breakers and moving contacts, applied in circuit breaker parts, emergency protection devices, circuits, etc., can solve problems such as affecting the short-circuit breaking capacity and electrical life of circuit breakers, insufficient tripping speed, and rapid extinguishing of adverse arcs. , to achieve the effect of being conducive to rapid extinguishing, rapid and reliable breaking, and improving short-circuit breaking capacity and electrical life.

Pending Publication Date: 2021-07-23
KEDU ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the tripping speed of the electromagnetic tripping mechanism of the circuit breaker in the prior art is not fast enough, which is not conducive to the rapid extinguishment of t

Method used

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  • Circuit breaker device
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Examples

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Embodiment 1

[0043] Below in conjunction with accompanying drawing this embodiment is described in detail:

[0044] The present invention provides as Figure 1-8 A circuit breaker device shown includes a housing 1, a contact structure disposed on the housing 1, an operating structure 6, and an electromagnetic tripping mechanism. The contact structure includes a static contact 3, and along the first direction to move the moving contact part 4 that is in contact with or separated from the static contact 3; the operating structure 6 is connected to the moving contact part 4, which has the function of driving the moving contact part under the drive of the electromagnetic tripping mechanism 4 The state of tripping movement separated from the static contact 3,

[0045] The electromagnetic tripping mechanism and the contact structure are arranged on the housing 1 along the first direction, and the electromagnetic tripping mechanism has a driving structure that drives the operating structure 6 to...

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Abstract

A circuit breaker device disclosed by the present invention comprises a contact structure, an operation structure and an electromagnetic tripping mechanism which are arranged in a shell, the electromagnetic tripping mechanism and the contact structure are arranged in the shell along a first direction, and the electromagnetic tripping mechanism is provided with a driving structure which drives the operation structure to be in a tripping motion state when being triggered and a push rod which is movably arranged between the driving structure and a moving contact component; when the electromagnetic tripping mechanism with the structural design drives the moving contact component to be separated from a static contact, the operation structure is subjected to opening and tripping movement, so that the operation structure drives the moving contact component to move to an opening position in a tripping state, the opening and tripping speed of the circuit breaker is improved under the combined action of the moving contact component and the static contact, the tripping time is shortened, the instant breaking of the moving contact and the static contact is beneficial to the rapid extinguishing of the arc, the contact structure is protected, the short circuit breaking capacity of the circuit breaker is improved, and the electrical life of the circuit breaker is prolonged.

Description

technical field [0001] The invention relates to the technical field of low-voltage electrical appliances, in particular to a circuit breaker device. Background technique [0002] The miniature circuit breaker is used in the power distribution system to connect or interrupt the load and protection circuit and the low-voltage protection device of the equipment. It not only has the function of manual switch, but also can automatically perform the functions of voltage loss, undervoltage, overload, and short circuit protection, so that it can be used to distribute electric energy, start asynchronous motors infrequently, and protect power lines and motors. It can automatically cut off the circuit in case of serious overload or short circuit and undervoltage faults. [0003] The traditional miniature circuit breaker is generally composed of electromagnetic tripping system, thermal tripping system, arc extinguishing system, operating tripping mechanism and contact system. The elect...

Claims

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Application Information

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IPC IPC(8): H01H71/24H01H71/02H01H73/18
CPCH01H71/0207H01H71/24H01H71/2463H01H73/18
Inventor 郑春开李子平廖军金海勇
Owner KEDU ELECTRIC CO LTD
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