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Circuit breaker drawer

A technology for drawer seats and circuit breakers, which is applied in the direction of pull-out switchgear, electrical components, switchgear, etc., and can solve the problem of high manufacturing cost of the traction plate 143, which is not conducive to the miniaturization of the circuit breaker, and cannot reduce the size of the traction plate 143, etc. problem, to meet the effect of miniaturization

Active Publication Date: 2020-03-06
CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This arrangement makes it impossible to reduce the size of the traction plate 143, which is not conducive to the miniaturization of the circuit breaker. At the same time, the large length of the traction groove 1431 also makes the manufacturing cost of the traction plate 143 relatively high.

Method used

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  • Circuit breaker drawer
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Embodiment Construction

[0036] The applicant will describe in detail the specific implementation of the present invention below in conjunction with the accompanying drawings, but the applicant's description of the embodiments is not a limitation to the technical solution, and any changes made in form but not in substance according to the concept of the present invention should be regarded as the present invention. scope of protection.

[0037] The circuit breaker involved in the present invention is specifically a drawer type circuit breaker. The circuit breaker includes a circuit breaker body and a drawer seat, and the circuit breaker body enters and exits the drawer seat. The circuit breaker and the drawer seat have several position states, namely the "connected" position, the "test" position, and the "separated" position. The above three positions are generated by the circuit breaker body moving to the specified position in the drawer seat. And when the circuit breaker body is taken out from the ...

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Abstract

A drawer seat of a circuit breaker comprises a rotatable rotating shaft assembly, and a guide plate mounted on the inner side of the drawer seat and slidable relative to the drawer seat. A circuit breaker body moves synchronously with the guide plate after placed in the drawer seat. The rotating shaft assembly includes a traction plate. Or the drawer seat of the circuit breaker comprises a rotatable rotating shaft assembly, and the rotating shaft assembly directly drives the movement of the circuit breaker body, and the rotating shaft assembly comprises a traction plate. The traction plate hasa traction groove and a pushing curve segment. The guide plate is provided with a first protruding roller and a second protruding roller synchronously moving with the guide plate. In the process thatthe circuit breaker body exits the drawer seat, the second protruding roller is first pushed by the pushing curve segment, and then the first protruding roller is moved by the traction groove. The traction plate can be made smaller to meet the trend of miniaturization of the circuit breaker.

Description

technical field [0001] The invention belongs to the technical field of low-voltage electrical appliances, and in particular relates to a drawer seat of a circuit breaker. Background technique [0002] Due to the convenience of inspection and maintenance, the withdrawable universal circuit breaker is widely used. The withdrawable universal circuit breaker is divided into two parts: the circuit breaker body and the drawer base. The drawer base is directly connected to the external power supply. The circuit breaker body can be pushed or pulled out in the drawer base. In the actual use of the withdrawable circuit breaker, the drive of the drawer seat is often advanced through the cooperation of a roller and the guide plate curve. Larger space. At the same time, in order to realize the stop of the connection position, an additional limit stop needs to be added. A series of above-mentioned problems make the structure of the existing drawer seat complex, which does not meet the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B11/127
Inventor 钱锦丰陈斌朱永清
Owner CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)
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