CN212517065U

CN212517065U - Thin leakage circuit breaker

Info

Publication number: CN212517065U
Application number: CN202021552630.7U
Authority: CN
Inventors: 吴伟青; 卢湛锐; 吴红光; 钟伟芬
Original assignee: Foshan Jiahua Electric Technology Co ltd
Current assignee: Foshan Jiahua Electric Technology Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-02-09
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses a slim electric leakage circuit breaker, its including the monopole circuit breaker that has the circuit breaker casing, the electric leakage release that has the release casing, be located the phase circuit in the circuit breaker casing and locate the phase utmost point switching mechanism of phase circuit, be located the zero pole circuit in the release casing and locate the zero pole switching mechanism of zero pole circuit, encircle phase circuit and zero pole circuit and stride the mutual-inductor that monopole circuit breaker and electric leakage release set up, with circuit board, the electricity of mutual-inductor extraction wire conducting connection and its feedback signal are connected the release coil of circuit board and control zero pole switching mechanism and phase utmost point switching mechanism disconnection. The phase circuit and the zero circuit are separated and are respectively arranged in the shell of the circuit breaker and the shell of the release, and the mutual inductor spans the hollow arrangement of the single-pole circuit breaker and the electric leakage release in the box body, so that the whole thin electric leakage circuit breaker can be reduced by half thickness, and less electric box space is occupied to ensure that the volume of the electric box is smaller.

Description

Thin leakage circuit breaker

Technical Field

The utility model relates to a low-voltage apparatus field especially relates to a slim residual current circuit breaker.

Background

The thickness of the existing small-sized leakage circuit breaker is large, domestic products are generally larger than 36mm, the size is large, and the small-sized leakage circuit breaker occupies more electric box space in actual use. The electric box occupies more electric room space due to larger space, is inconvenient to reduce the area of the electric room, and is equivalent to the extrusion of living space of people in turn, in particular to the tight living space in dense buildings in large cities.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a slim residual current circuit breaker of volume littleer electricity box volume.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a slim electric leakage circuit breaker, its including as the base and have the circuit breaker casing the unipolar circuit breaker, have with the electric leakage release of the release casing of circuit breaker casing cooperation butt joint, be located phase circuit in the circuit breaker casing and the phase pole switching mechanism who locates the phase circuit, be located zero pole circuit in the release casing and the zero pole switching mechanism who locates the zero pole circuit, encircle phase circuit and zero pole circuit and stride the mutual-inductor that unipolar circuit breaker and electric leakage release set up, with circuit board, the electricity connection of conductor turn-on connection and its feedback signal are drawn forth to the mutual-inductor the circuit board and the release coil of control phase pole switching mechanism and zero pole switching mechanism disconnection.

Based on the improvement provided by the technical scheme, the phase pole circuit is provided with an instantaneous coil and a bimetallic strip which are connected with the phase pole switch mechanism in series.

Based on the improvement provided by the technical scheme, a test circuit for simulating electric leakage when the phase circuit and the zero-pole circuit are closed is constructed between the phase circuit and the zero-pole circuit, and a test button is arranged to control the on-off of the test circuit.

Based on the improvement provided by the technical scheme, the test button and two electric connection points of the phase circuit and the zero-pole circuit are respectively positioned at two sides of the mutual inductor.

Based on the improvement provided by the technical scheme, the tripper coil drives the phase pole switching mechanism to be disconnected, and the phase pole switching mechanism is disconnected with the zero pole switching mechanism in a linkage manner.

The beneficial effects of the utility model reside in that: the phase circuit and the zero circuit are separated and are respectively arranged in the breaker shell of the single-pole breaker and the release shell of the electric leakage release, and the mutual inductor spans the hollow arrangement of the single-pole breaker and the electric leakage release in the box body, so that the thicknesses of the single-pole breaker and the electric leakage release can be thinned, the whole thin electric leakage breaker can be reduced by half, and the hollow space and the volume of the electric box where the electric leakage breaker is located can be reduced.

Drawings

Fig. 1 is a schematic view of a thin residual current circuit breaker according to the present invention.

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

As shown in fig. 1, the utility model relates to a thin residual current circuit breaker, its include as the base and have circuit breaker casing 101 the unipolar circuit breaker 10, have with the electric leakage release 20 of the release casing 201 of circuit breaker casing cooperation butt joint, be located phase circuit 102 in the circuit breaker casing 101 with locate phase circuit's phase switch mechanism 103, be located zero pole circuit 202 in the release casing 201 and locate zero pole circuit's zero pole switch mechanism 203, encircle phase circuit and zero pole circuit and stride unipolar circuit breaker and electric leakage release setting mutual-inductor 204, with mutual-inductor 204 draws wire on-state and receives its feedback signal's circuit board 205, electric connection the circuit board 205 and control phase switch mechanism 103 and zero pole switch mechanism 203 disconnected release coil 206. The phase circuit 102 and the zero-pole circuit 202 are separated and respectively arranged in the circuit breaker shell 101 of the single-pole circuit breaker 10 and the release shell 201 of the leakage release 20, and the mutual inductor 204 is arranged in the box body across the inner spaces of the single-pole circuit breaker 10 and the leakage release 20, so that the thicknesses of the single-pole circuit breaker 10 and the leakage release 20 are reduced, the overall thin leakage circuit breaker is reduced by half, the leakage circuit breaker with smaller volume is obtained, and less electric box space is occupied, so that the inner space of an electric box where the leakage circuit breaker is located is reduced, and the volume of the electric box is reduced.

In an alternative embodiment, the phase circuit 102 is provided with a momentary coil 104 and a bimetal strip 105 in series with the phase switching mechanism 103. A test circuit simulating electric leakage when the circuit is closed is constructed between the phase circuit 102 and the zero-pole circuit 202, and a test button 207 is arranged to control the on-off of the test circuit and is arranged on the release casing 201. And (3) constructing a simulated leakage circuit structure, and pressing the test button 207 to close and conduct the test circuit for simulating leakage so as to verify whether the leakage circuit breaker is qualified. Preferably, the two electrical connection points of the test button 207 and the phase circuit 102 and the zero-pole circuit 202 are respectively located at two sides of the transformer 204, so that the transformer 204 can sense an analog leakage signal.

In an alternative embodiment, the tripper coil 206 drives the phase switch mechanism 103 to be disconnected, and the phase switch mechanism 103 is in linkage disconnection with the zero switch mechanism 203, so that the matching structure of the driving mechanism is simplified, only one switch mechanism is driven to complete the action, and the other switch mechanism is driven to be disconnected by the linkage structure between the two switch mechanisms.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.

Claims

1. A thin residual current circuit breaker is characterized in that: including as the base and have the circuit breaker casing the unipolar circuit breaker, have with the electric leakage release of the release casing of circuit breaker casing cooperation butt joint, be located phase circuit in the circuit breaker casing and locate the phase pole switching mechanism of phase circuit, be located zero pole circuit in the release casing and locate zero pole switching mechanism of zero pole circuit, encircle phase circuit and zero pole circuit and stride the mutual-inductor that unipolar circuit breaker and electric leakage release set up, with circuit board, the electricity connection of mutual-inductor extraction wire conductive connection and its feedback signal receive circuit the circuit board and the release coil of control phase pole switching mechanism and zero pole switching mechanism disconnection.

2. A thin residual current circuit breaker according to claim 1, characterized in that: the phase pole circuit is provided with an instantaneous coil and a bimetallic strip which are connected with the phase pole switch mechanism in series.

3. A thin residual current circuit breaker according to claim 1, characterized in that: and a test circuit for simulating electric leakage when the circuit is closed is constructed between the phase circuit and the zero-pole circuit, and a test button is arranged to control the on-off of the test circuit.

4. A thin residual current circuit breaker according to claim 3, characterized in that: and the test button and two electric connection points of the phase pole circuit and the zero pole circuit are respectively positioned at two sides of the mutual inductor.

5. A thin residual current circuit breaker according to claim 1, characterized in that: and the tripper coil drives the phase pole switching mechanism to be disconnected, and the phase pole switching mechanism is in linkage disconnection with the zero pole switching mechanism.