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Moving contact mounting structure, operating mechanism and miniature circuit breaker

A technology of installation structure and operating mechanism, applied in the direction of protective switch operation/release mechanism, circuit breaker parts, circuit breaker contacts, etc., can solve the problems of complex assembly process and high production cost, and achieve simple assembly process, simple structure, The effect of improving assembly efficiency

Pending Publication Date: 2019-11-15
浙江友路电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of complicated assembly process and high production cost of the moving contact and the contact bracket in the prior art, so as to provide a moving contact installation structure with simple assembly process and low production cost , the operating mechanism provided with the moving contact installation structure, and the small circuit breaker provided with the operating mechanism

Method used

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  • Moving contact mounting structure, operating mechanism and miniature circuit breaker
  • Moving contact mounting structure, operating mechanism and miniature circuit breaker
  • Moving contact mounting structure, operating mechanism and miniature circuit breaker

Examples

Experimental program
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Embodiment 1

[0037] This embodiment provides a moving contact installation structure, such as Figure 2-4 As shown, it includes contact bracket 1 and moving contact 2.

[0038] Contact holder 1, such as image 3 As shown, it includes a bracket body 10, and a first side plate 11 that is arranged on both sides of the bracket body 10 and is perpendicular to the bracket body 10. The limit block 13 extended by the side plate 11, the limit block 13 is surrounded by the first side plate 11 and the bracket body 10 to form a draw-in groove suitable for installing the movable contact 2, and the two sides of the bracket body 10 are also separately provided with a movable contactor. The contact 2 is matched with the abutting second side plate 12 , and there is a gap between the second side plate 12 and the first side plate 11 . The contact bracket 1 is also provided with a positioning hole 14 which is fitly connected with the positioning block 21 of the movable contact 2 .

[0039] Moving contact 2...

Embodiment 2

[0044] This embodiment provides a miniature circuit breaker, such as figure 1 , as shown in 5 and 6, includes an operating mechanism for driving the circuit breaker to open and close. and the second biasing member 5.

[0045] Such as Figure 5 As shown, the jumper 3 and the lock 4 are rotatably mounted on the contact bracket 1 , and correspondingly provided with first locking teeth 31 and second locking teeth 41 that cooperate with each other.

[0046] One end of the first biasing member abuts against the contact bracket 1, and the other end abuts against the lock 4 to apply a biasing force to the second lock tooth 41 of the lock 4 to move toward the first lock tooth 31. In this embodiment, The first biasing member is integrally formed on the elastic plastic part 42 on the buckle 4 , and the end of the elastic plastic part 42 away from the buckle 4 is against the stopper 15 provided on the contact bracket 1 .

[0047] The second biasing member 5 abuts against the positionin...

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PUM

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Abstract

The invention provides a moving contact mounting structure, an operating mechanism and a miniature circuit breaker. The moving contact mounting structure comprises a contact support and a moving contact, wherein the moving contact is fixedly connected with the contact support through a clamping structure. The mounting structure provided by the invention can meet the mounting requirement of the moving contact. Compared with the prior art, the assembling process is simple, the assembling efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of small circuit breakers, in particular to a moving contact installation structure, an operating mechanism and a small circuit breaker. Background technique [0002] Miniature circuit breakers refer to protective appliances installed on terminal distribution lines, mainly used for overload and short circuit protection of lines and electrical equipment. Miniature circuit breakers are generally composed of operating mechanism, electromagnetic tripping mechanism, thermal tripping mechanism, arc extinguishing mechanism, etc. The operating mechanism refers to the components used to open and close the circuit breaker. The operating mechanism must not only ensure the reliable closing of the circuit breaker, but also ensure the rapid opening of the circuit breaker under fault conditions. The performance of the operating mechanism directly affects the miniature circuit breaker. function. [0003] The traditional sm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H73/04H01H71/10
CPCH01H73/04H01H71/10
Inventor 周红兵倪育强
Owner 浙江友路电气有限公司