Operating mechanism of circuit breaker

An operating mechanism and circuit breaker technology, which is applied to circuit breaker parts, protection switch operation/release mechanisms, circuit breaker contacts, etc. The effect of simplifying the structure and reducing the installation space

CN112992620APending Publication Date: 2021-06-18ZHEJIANG CHINT ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-06-18

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Abstract

The invention relates to the field of low-voltage electric appliances, in particular to an operating mechanism of a circuit breaker. The operating mechanism comprises a handle, a connecting rod, a jump fastener, a lock fastener, a moving contact piece and an arc-shaped sliding groove which are arranged in a shell of the circuit breaker. The handle is arranged on the shell in a pivoted mode, one end of the handle protrudes out of the shell to be operated by a user, and the other end of the handle is rotationally connected with the front end of the connecting rod; the rear end of the connecting rod is inserted into a kidney-shaped connecting hole formed in the jump fastener and is in sliding fit with the sliding groove; the hasp end at one end of the jump fastener is in hasp fit with the hasp table of the lock fastener, and the other end of the jump fastener is rotatably connected with one end of the moving contact piece to form a jump buckle rotating center; the lock fastener is pivotally arranged on the shell; the moving contact piece is rotatably arranged on the second rotating shaft through a kidney-shaped hole formed in the middle of the moving contact piece; and the other end of the moving contact piece is provided with a moving contact matched with the static contact. The operating mechanism of the circuit breaker is simple in structure and easy to assemble, and the assembling space is saved.
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Description

technical field

[0001] The invention relates to the field of low-voltage electrical appliances, in particular to an operating mechanism of a circuit breaker. Background technique

[0002] The existing circuit breakers have complex structures and complex processes, making it difficult to realize automatic production. Moreover, the operating mechanism of the existing circuit breaker takes up a large space, which cannot meet the needs of the development trend of intelligent and miniaturized circuit breakers; once the circuit breaker needs to add product functions, such as detection modules, communication modules, etc. The volume increases. Contents of the invention

[0003] The object of the present invention is to overcome the defects of the prior art and provide an operating mechanism for a circuit breaker, which has a simple structure, is easy to assemble, and saves assembly space.

[0004] To achieve the above object, the present invention adopts the following technical...

Examples

Embodiment Construction

[0043] The following is attached Figure 1-14 The given examples further illustrate the specific implementation of the operating mechanism of the circuit breaker of the present invention. The operating mechanism of the circuit breaker of the present invention is not limited to the description of the following embodiments.

[0044] The operating mechanism of the circuit breaker of the present invention includes a handle 1, a connecting rod 2, a jumper 3, a lock 4, a moving contact 6 and an arc-shaped chute 5 arranged in the housing H of the circuit breaker;

[0045] The handle 1 is pivotally arranged on the housing H, one end protrudes outside the housing H for user operation, and the other end is rotationally connected with the connecting rod front end 20 at one end of the connecting rod 2, and the connecting rod rear end at the other end of the connecting rod 2 is inserted into the Set in the waist-shaped connecting hole 31 on the jumper 3 and slide with the chute 5, the buc...