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Micro breaker having rapid closing device

A small circuit breaker and fast closing technology, applied in the direction of switchgear status indication, protection switch operation/release mechanism, etc. Contact burnout, fast closing speed, good safety effect

Active Publication Date: 2013-10-02
ZHEJIANG TENGEN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies and defects in the background technology, the present invention provides a small circuit breaker with a quick closing device, which mainly solves the problem that it is difficult to judge whether the circuit breaker is broken when the existing small circuit breaker is in use, which may mislead the operator and cause The problem of security incidents

Method used

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  • Micro breaker having rapid closing device
  • Micro breaker having rapid closing device
  • Micro breaker having rapid closing device

Examples

Experimental program
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Embodiment Construction

[0020] Embodiments of the present invention will be further described below with reference to the accompanying drawings:

[0021] As shown in the figure, the small circuit breaker with a quick closing device includes a housing 1, and the housing 1 is provided with a handle 4, a tripping mechanism, a moving contact and a static contact, and the handle 4 is connected to the tripping Mechanism linkage connection, the tripping mechanism is connected with the moving contact, the static contact is matched with the moving contact, the handle is rotated and fitted in the housing 1 through the pin shaft 8, and the handle 4 includes the same pin The toggle piece 41 and the lock piece 42 socketed on the shaft 8, the lock piece 42 is provided with a clip 5, the toggle piece 41 is provided with a notch 412 for the clip 5 to rotate, and the pin shaft 8 A limiting torsion spring 7 is sleeved on the top to promote the counterclockwise rotation of the clip 5. One end of the limiting torsion sp...

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Abstract

The invention relates to a micro breaker having a rapid closing device and mainly solves a problem that difficulty in determining whether a breaker in the prior art breaks or not during use may mislead an operator to cause a safety accident. A handle comprises a toggle member and a lock member which are in common-pin sleeve connection, the lock member is provided with a clamp, the toggle member is provided with a notch for rotation motion of the clamp, a pin is sleeved by a limit torsion spring which drives the clamp to rotate anticlockwise, a casing is internally hinged with a clamping board, one end of the clamping board is in elastic matching with the casing through an elastic member, the other end of the clamping board is clamped with the clamp, one end of the clamping board corresponding to the handle is provided with an inclined plane, the inclined plane is in pressing matching with an outer contour of the handle, and disengaging or engagement of the clamping board and the clamp are realized in a rotation process of the handle. The micro breaker having the rapid closing device has advantages of fast closing speed, good safety and long service life.

Description

technical field [0001] The invention relates to a small circuit breaker, in particular to a small circuit breaker with a quick closing device. Background technique [0002] Miniature circuit breakers are generally used in the field of circuit control equipment. When closing, the handle drives the tripping mechanism to make the moving contact contact with the static contact to achieve the purpose of closing. The closing speed is still related to the speed of manual operation. Instantaneous and fast will directly affect the service life of the contact. If the tripping mechanism is not fast enough, it will make the spark between the moving contact and the static contact last for a long time, resulting in the contact being burned out, thereby reducing the service life of the product. Contents of the invention [0003] In order to overcome the deficiencies and defects in the background technology, the present invention provides a small circuit breaker with a quick closing devi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/50H01H71/04
Inventor 邹城华任昌宾曹颖卢权胜汪泰宇
Owner ZHEJIANG TENGEN ELECTRIC
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