Miniature circuit breaker

A small circuit breaker, main body technology, applied in the direction of circuit, protection switch parts, electrical components, etc., can solve the problems of inconvenient disassembly and assembly of the shell, poor heat dissipation effect, etc., achieve stable and reliable placement, improve stability, and improve heat dissipation effect Effect
CN112490080APending Publication Date: 2021-03-12BEIJING JINGSENYUAN ELECTRICAL APP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING JINGSENYUAN ELECTRICAL APP CO LTD
Publication Date
2021-03-12

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Abstract

The invention relates to the technical field of circuit breakers, and discloses a miniature circuit breaker. The circuit breaker comprises a miniature circuit breaker main body, the outer side of theminiature circuit breaker main body is covered with a shell, and one end of the shell is provided with an insertion port. A box body is arranged at the end, away from the insertion opening, in the shell, and cooling liquid is contained in the box body. A heat conduction assembly is arranged on the side, facing the insertion opening, of the box. And a shell cover is arranged on the shell. A connecting block is arranged on the side, close to the shell, of the shell cover, a connecting groove is formed in the shell, and the connecting groove and the connecting block are locked and fixed through alocking mechanism. The miniature circuit breaker is accommodated in the space formed by the shell and the shell cover, a stable environment is provided for normal operation of the miniature circuit breaker, the shell and the shell cover are connected and fixed through the connecting groove and the connecting block, and the locking mechanism is additionally arranged on the basis, so the rapid disassembly and assembly between the shell and the shell cover are realized; the heat conduction assembly and the box body are additionally arranged in the shell, so that the heat dissipation effect is improved, and a stable temperature environment is provided for normal operation.
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Description

technical field

[0001] The invention relates to the technical field of circuit breakers, in particular to a small circuit breaker. Background technique

[0002] Miniature circuit breakers, also known as miniature circuit breakers, are suitable for overload and short-circuit protection of AC 50 / 60Hz rated voltage 230 / 400V, rated current up to 63A, and can also be used for infrequent operation of the line under normal conditions. Miniature circuit breakers are mainly used in various places such as industry, commerce, high-rise buildings and residential buildings.

[0003] When the existing miniature circuit breaker is used for a long time, its internal parts will be damaged by the influence of external environmental factors, and its service life is low. At present, the existing small circuit breakers with protective casings are fixed by a large number of screws, so when disassembling, the workload of workers will be greatly increased, which is very inconvenient. At the same t...

Claims

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