Receptacle type residual current circuit breaker
A residual current and circuit breaker technology, applied in the field of residual current circuit breakers, can solve the problems of life and production safety hazards, large leakage protection sockets, and no protective measures, etc., and achieve resource saving, simple structure, and wide application.
Active Publication Date: 2014-02-19
SUZHOU ELE MFG
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Problems solved by technology
In this way, in the process of use, if there is a leakage fault in the electrical appliance, there will be no protective measures, which will bring great hidden dangers to people's life and production safety.
[0005] Existing leakage protection sockets on the market are often complex in structure and inconvenient to use
For example, the input end of some leakage protection sockets is equipped with a 3-prong plug, which needs to be inserted into an ordinary 3-prong socket when in use; some leakage protection sockets are large in size and complex in structure, which is not easy to install
Method used
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[0060] The socket-type residual current circuit breaker (hereinafter referred to as circuit breaker) of the present invention will be described in detail below in a preferred embodiment. Figures 1a-1d The circuit breaker is illustrated from various angles, wherein the housing exterior is formed by the housing upper cover 2 and the housing base 15, and a panel 1 can be covered on the housing upper cover 2, so that the exterior of the circuit breaker The size is more suitable for domestic standard wall junction boxes. The casing upper cover 1 is provided with an opening for the reset button 6 and the test button 7 to protrude from, and a socket for inserting a plug to contact with the socket piece to form a load output.
[0061] Figure 2 to Figure 3b The structure and positional relationship of each component inside the housing are shown respectively. It should be understood that, in this embodiment, the expressions used to describe the structure and position direction of eac...
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The invention provides a receptacle type residual current circuit breaker which comprises a shell as well as a resetting assembly, a core assembly (14) and a testing assembly which are arranged in the shell, wherein the core assembly (14) comprises a circuit board (1410) as well as a magnetic ring assembly (1411) and a tripping assembly which are arranged on the circuit board; a middle layer bracket (11) in the shell is fixedly connected with a pair of receptacle pieces (9, 13); static contact arms provided with static contacts (901, 131) respectively extend out of the receptacle pieces (9, 13), and are used for corresponding to movable electrical contacts (141, 142) of a pair of input movable contact pieces (1406, 1407) arranged in the magnetic ring assembly (1411); the static contact arms are arranged to extend in the same direction; and the tripping assembly is arranged below the input movable contact pieces (1406, 1407) and cooperates with the resetting assembly to act. The circuit breaker has the advantages of simple structure and small outer volume, can be directly installed in a national standard wall junction box, and is safely and reliably suitable for various receptacles.
Description
technical field [0001] The invention relates to a residual current circuit breaker, in particular to a socket type residual current circuit breaker. Background technique [0002] The residual current circuit breaker is a relay protection device that can automatically disconnect the circuit or send an alarm signal when the residual current in the protected circuit exceeds the set value under specified conditions. The device is mainly suitable for distribution networks with AC 50Hz, rated voltage 400V, and rated current up to 800A. It is used to provide indirect contact protection for people, and it can also be used to prevent fire hazards caused by ground fault currents caused by equipment insulation damage. It can also be used to distribute electric energy and protect circuits and power supply equipment from overload and short circuit. It can also be used for infrequent switching of circuits and infrequent starting of motors. [0003] The residual current circuit breaker ma...
Claims
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IPC IPC(8): H01H83/04H01H71/24H01H73/44H01R13/713
Inventor 李成力岳国兰张晓明
Owner SUZHOU ELE MFG