CN221613813U - Leakage detection device for circuit breaker assembly and circuit breaker assembly - Google Patents

Abstract

The embodiment of the present disclosure provides a leakage detection device for a circuit breaker assembly, the circuit breaker assembly includes a plurality of circuit breakers that set up side by side, and every circuit breaker includes binding post and is connected to binding post's wiring hole, and leakage detection device includes: a zero sequence transformer arranged adjacent to one side of the plurality of circuit breakers where the wiring holes are arranged, the zero sequence transformer covering at least one circuit breaker wiring hole in a neutral position such that the wiring hole of the at least one circuit breaker is adapted to connect a corresponding wiring through the zero sequence transformer; a first connection member having one end connected to a connection terminal of the circuit breaker at a first edge position and the other end adapted to be electrically connected to a connection corresponding to the circuit breaker, the first connection member passing through the zero sequence transformer; and a second connection member having one end connected to a connection terminal of the circuit breaker located at a second edge position opposite to the first edge position and the other end adapted to be electrically connected to a connection corresponding to the circuit breaker, the second connection member passing through the zero sequence transformer.

Description

Leakage detection device for circuit breaker assembly and circuit breaker assembly

Technical Field

Embodiments of the present disclosure relate to the field of electrical devices, and more particularly, to an electrical leakage detection apparatus for a circuit breaker assembly and a circuit breaker assembly including the same.

Background

The conventional assembly type residual current circuit breaker is wide in width and occupies more space. In addition, the distance between the wiring terminal and the zero sequence transformer in the residual current circuit breaker is larger, so that the wiring length of the residual current circuit breaker is longer, and the problems of unnecessary power consumption increase, inconvenient installation and the like are caused. Therefore, an optimal design is required.

Disclosure of utility model

It is an object of the present disclosure to provide an electrical leakage detection device for a circuit breaker assembly and a circuit breaker assembly comprising the same, to at least partially solve the above-mentioned problems.

In a first aspect of the present disclosure, there is provided an electrical leakage detection device for a circuit breaker assembly including a plurality of circuit breakers arranged side by side, each of the plurality of circuit breakers including a wiring terminal and a wiring hole connected to the wiring terminal, characterized in that the electrical leakage detection device includes: a zero sequence transformer disposed adjacent to a side of the plurality of circuit breakers where the wiring holes are disposed, the zero sequence transformer covering at least one of the wiring holes of the plurality of circuit breakers in an intermediate position such that the wiring holes of the at least one circuit breaker are adapted to connect respective wires passing through the zero sequence transformer; a first connection member having one end connected to the connection terminal of a circuit breaker located at a first edge position among the plurality of circuit breakers and the other end adapted to be electrically connected to a connection corresponding to the circuit breaker, the first connection member passing through the zero sequence transformer; and a second connecting piece, one end of which is connected to the wiring terminal of a circuit breaker located at a second edge position opposite to the first edge position in the plurality of circuit breakers, and the other end of which is suitable for being electrically connected to a wiring corresponding to the circuit breaker, the second connecting piece passing through the zero sequence transformer.

According to the leakage detection device of the embodiment of the disclosure, the zero sequence transformer is arranged adjacent to one side of the plurality of circuit breakers, on which the wiring holes are arranged, so that the wiring holes of at least one circuit breaker are suitable for connecting corresponding wiring passing through the zero sequence transformer, one end of the first connecting piece is connected to the wiring terminal of the circuit breaker positioned at the first edge position and the other end of the first connecting piece is suitable for being electrically connected to the wiring corresponding to the circuit breaker, one end of the second connecting piece is connected to the wiring terminal of the circuit breaker positioned at the second edge position and the other end of the second connecting piece is suitable for being electrically connected to the wiring corresponding to the circuit breaker, the wiring length is greatly reduced, the power consumption is reduced, and the wiring difficulty is reduced.

In some embodiments, the leakage detection device further comprises a triggering mechanism, wherein the triggering mechanism is arranged on one side, away from other circuit breakers, of the circuit breakers located at the second edge position, of the plurality of circuit breakers, and the triggering mechanism is electrically connected with the zero sequence transformer so as to trigger a preset action when the zero sequence transformer detects a leakage current.

In some embodiments, the first connector comprises: the first main body part passes through the zero sequence transformer; a first connection portion provided at one end of the first main body portion and extending in a direction away from the first main body portion, the first connection portion being connectable to the connection terminal of one of the plurality of circuit breakers located at the first edge position; and a first overlap portion provided at one end of the first main body portion facing away from the first connection portion and extending in a direction approaching the first connection portion.

In some embodiments, the second connector comprises: the second main body part passes through the zero sequence transformer; a second connection portion provided at one end of the second main body portion and extending in a direction away from the second main body portion, the second connection portion being connectable to the connection terminal of another one of the plurality of circuit breakers located at the second edge position; and a second overlap portion provided at one end of the second main body portion facing away from the second connection portion and extending in a direction approaching the second connection portion.

In some embodiments, the electrical leakage detection device further comprises a pair of socket members, one of the pair of socket members being disposed adjacent to the first connector and having an inner side of one end thereof abutting the first overlap, and the other of the pair of socket members being disposed adjacent to the second connector and having an inner side of one end thereof abutting the second overlap.

In some embodiments, each of the pair of jack members is provided with a jack for electrically connecting a plug wire of a corresponding circuit breaker.

In some embodiments, the electrical leakage detection device further comprises a pair of fasteners, one of the pair of fasteners being disposed adjacent to the first connector and having one end thereof abutting the receptacle member disposed adjacent to the first connector, the other of the pair of fasteners being disposed adjacent to the second connector and having one end thereof abutting the receptacle member disposed adjacent to the second connector.

In some embodiments, the leakage detection device further includes a housing coupled to a housing face of one end of the plurality of circuit breakers where the wiring holes are disposed.

In some embodiments, a positioning portion is formed on a position of the housing corresponding to one end of the zero sequence transformer, the positioning portion abutting against the zero sequence transformer to limit the zero sequence transformer to a predetermined position.

In some embodiments, the housing includes an open support portion provided at an inner side of the zero sequence transformer, one end of the open support portion abutting against the inner side of the zero sequence transformer and the other end of the first and second connection members to restrict the zero sequence transformer, the first connection member, and the second connection member to predetermined positions.

In some embodiments, a blocking member is provided on the inside of the open support portion, one end of the blocking member being connected to an end of the open support portion adjacent to the positioning portion, and the other end being connected to an end of the open support portion facing away from the positioning portion.

In some embodiments, the leakage detection device further includes a housing coupled to a housing face of one end of the plurality of circuit breakers provided with the wiring holes, and a wire insertion port provided in a position of the housing corresponding to each of the pair of jack members, the wire insertion port being in communication with a corresponding jack for insertion of a wire insertion of the corresponding circuit breaker.

In some embodiments, the leakage detecting device further includes a housing coupled to a housing face of one end of the plurality of circuit breakers where the wiring holes are provided, and an operation hole is provided in a position of the housing corresponding to each of the pair of fasteners, the operation hole being for the operation member to be inserted.

In a second aspect of the present disclosure, there is provided a circuit breaker assembly comprising the leakage detection device according to the first aspect of the present disclosure.

It should be understood that what is described in this section of content is not intended to limit key features or essential features of the embodiments of the present disclosure nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

The above and other features, advantages and aspects of embodiments of the present disclosure will become more apparent by reference to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, wherein like or similar reference numerals denote like or similar elements, in which:

Fig. 1 illustrates an isometric view of a circuit breaker assembly and an electrical leakage detection device according to one embodiment of the present disclosure;

Fig. 2 illustrates a cross-sectional view of a circuit breaker assembly and an electrical leakage detection device according to one embodiment of the present disclosure;

Fig. 3 is a schematic view showing a partial structure of a circuit breaker assembly and a leakage detection device according to an embodiment of the present disclosure;

FIG. 4 illustrates a schematic structural view of a first connector according to one embodiment of the present disclosure;

FIG. 5 illustrates a schematic structural view of a second connector according to one embodiment of the present disclosure;

fig. 6 shows a schematic structural diagram of an electrical leakage detection device according to one embodiment of the present disclosure;

Fig. 7 illustrates an isometric view of a circuit breaker assembly and an electrical leakage detection device according to another embodiment of the present disclosure; and

Fig. 8 illustrates a schematic structural view of a trigger mechanism according to one embodiment of the present disclosure.

Detailed Description

Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present disclosure are illustrated in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The term "comprising" and variations thereof as used herein means open ended, i.e., "including but not limited to. The term "or" means "and/or" unless specifically stated otherwise. The term "based on" means "based at least in part on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment. The term "another embodiment" means "at least one additional embodiment". The terms "first," "second," and the like, may refer to different or the same object.

As described above, the conventional split type earth leakage breaker has a wide width, taking up much space. In addition, the distance between the wiring terminal and the zero sequence transformer in the residual current circuit breaker is larger, so that the wiring length of the residual current circuit breaker is longer, and the problems of unnecessary power consumption increase, inconvenient installation and the like are caused.

Embodiments of the present disclosure provide a leakage detection apparatus for a circuit breaker assembly, in which a zero sequence transformer is disposed adjacent to one side of a plurality of circuit breakers where a wiring hole is disposed, one end of a first connection member is connected to a wiring terminal of the circuit breaker located at a first edge position and the other end is adapted to be electrically connected to a wiring corresponding to the circuit breaker, one end of a second connection member is connected to a wiring terminal of the circuit breaker located at a second edge position and the other end is adapted to be electrically connected to a wiring corresponding to the circuit breaker, such that a wiring length is greatly reduced, thereby reducing power consumption and wiring difficulty. Hereinafter, the principles of the present disclosure will be described with reference to fig. 1 to 8.

Fig. 1 illustrates an isometric view of a circuit breaker assembly and an electrical leakage detection device according to one embodiment of the present disclosure. Fig. 2 illustrates a cross-sectional view of a circuit breaker assembly and an electrical leakage detection device according to one embodiment of the present disclosure. Fig. 3 shows a partial schematic diagram of a circuit breaker assembly and a leakage detection device according to one embodiment of the present disclosure. As shown in fig. 1 to 3, the circuit breaker assembly described herein includes a plurality of circuit breakers 1 arranged side by side. Each of the plurality of circuit breakers 1 includes a wiring terminal 10 and a wiring hole 11 connected to the wiring terminal 10. The leakage detection device 2 generally comprises a zero sequence transformer 223, a first connection 221 and a second connection 222. The zero sequence transformer 223 is arranged adjacent to the side of the plurality of circuit breakers 1 where the wiring holes 11 are arranged. The zero sequence transformer 223 covers at least one wiring hole 11 of the circuit breaker 1 in an intermediate position among the plurality of circuit breakers 1 such that the wiring hole 11 of the at least one circuit breaker 1 is adapted to connect a corresponding wiring passing through the zero sequence transformer 223. One end of the first connection member 221 is connected to the connection terminal 10 of the circuit breaker 1 located at the first edge position among the plurality of circuit breakers 1, and the other end is adapted to be electrically connected to a connection corresponding to the circuit breaker 1. The first connection 221 passes through the zero sequence transformer 223. One end of the second connection member 222 is connected to the connection terminal 10 of the circuit breaker 1 located at the second edge position opposite to the first edge position among the plurality of circuit breakers 1, and the other end is adapted to be electrically connected to the connection corresponding to the circuit breaker 1. The second connection 222 passes through the zero sequence transformer 223.

In one embodiment, as shown in fig. 1, the leakage detection device 2 may further include a trigger mechanism 3. The triggering mechanism 3 is arranged on a side of one of the circuit breakers 1 located at the second edge position, which side is away from the other circuit breakers 1. The triggering mechanism 3 is electrically connected with the zero sequence transformer 223 to trigger a predetermined action in case the zero sequence transformer 223 detects a leakage current. The trigger mechanism 3 is located on the right side of the circuit breaker assembly as shown in fig. 1, although the trigger mechanism 3 can also be located on the left side of the circuit breaker assembly.

With continued reference to fig. 1, each circuit breaker 1 of the plurality of circuit breakers 1 is identical in structure and each circuit breaker 1 operates independently. For example, the number of circuit breakers 1 may comprise 2, 3 or 4. Hereinafter, the principle of the present disclosure will be mainly exemplified in a case where the number of the circuit breakers 1 includes 4, but is similar to a case where the number of the circuit breakers 1 includes 2 or 3, and will not be described again here.

Fig. 4 illustrates a structural schematic diagram of a first connector according to one embodiment of the present disclosure. Fig. 5 illustrates a structural schematic diagram of a second connector according to one embodiment of the present disclosure. In some embodiments, as shown in fig. 4 and 5, the first connection 221 includes a first body portion 2211, a first connection portion 2212, and a first overlap portion 2213. The first body 2211 passes through the zero sequence transformer 223. The first connection portion 2212 is provided at one end of the first body portion 2211 and extends in a direction away from the first body portion 2211. The first connection portion 2212 can be connected to one of the plurality of circuit breakers 1 located at a first edge position. The first overlap portion 2213 is provided at an end of the first main body portion 2211 facing away from the first connection portion 2212 and extends in a direction approaching the first connection portion 2212.

With continued reference to fig. 4 and 5, the second connector 222 includes a second body portion 2221, a second connection portion 2222, and a second overlap portion 2223. The second body portion 2221 passes through the zero sequence transformer 223. The second connection portion 2222 is provided at one end of the second body portion 2221 and extends in a direction away from the second body portion 2221. The second connection part 2222 can be connected to one of the plurality of circuit breakers 1 located at the second edge position. The second overlap portion 2223 is provided at an end of the first main body portion 2221 facing away from the second connection portion 2222 and extends in a direction approaching the second connection portion 2222.

In one embodiment, as shown in fig. 2 and 3, the first connection portion 2212 and the second connection portion 2222 are respectively contacted with the connection terminals 10 of different circuit breakers 1 located at the edge positions among the plurality of circuit breakers 1 to receive the leakage current of the connected circuit breakers 1.

In some embodiments, as shown in fig. 2 and 3, the electrical leakage detection device 2 may further include a pair of receptacle members 224 and a pair of fasteners 225. One socket member 224 of the pair of socket members 224 is disposed adjacent to the first connecting member 221 and an inner side of one end thereof abuts against the first overlap 2213. The other jack member 224 of the pair of jack members 224 is disposed adjacent to the second connecting member 222 and an inner side of one end thereof abuts against the second overlap portion 2223. One fastener 225 of the pair of fasteners 225 is disposed adjacent the first connector 221 and one end thereof abuts the receptacle member 224 disposed adjacent the first connector 221. The other fastener 225 of the pair of fasteners 225 is disposed adjacent the second connector 222 and has one end abutting the receptacle member 224 disposed adjacent the second connector 222. Fasteners 225 are capable of securing the corresponding socket members 224 to the first and second connectors 221, 222, respectively. Each jack member 224 is provided with a jack 2240 for electrically connecting a plug wire of a corresponding circuit breaker 1. In one embodiment, the fasteners 225 are bolts. It should be understood that based on the teachings provided in this disclosure, one of ordinary skill in the art will recognize other types of fasteners to accomplish the above-described functions, all falling within the scope of this disclosure.

Fig. 6 shows a schematic structural diagram of an electrical leakage detection device according to one embodiment of the present disclosure. In one embodiment, as shown in fig. 1 and 6, the leakage detection device 2 further includes a housing 21. The housing 21 is coupled to a housing face of the plurality of circuit breakers 1 at one end where the wiring holes 11 are provided. The housing 21 is formed with a positioning portion 210 at a position corresponding to one end of the zero sequence transformer 223. The positioning part 210 abuts against the zero sequence transformer 223 to limit the zero sequence transformer 223 to a predetermined position. The housing 21 includes an open support 211 provided inside the zero sequence transformer 223. One end of the opening support 211 abuts against the inside of the zero sequence transformer 223 and the other end of the first and second connectors 221 and 222 to restrict the zero sequence transformer 223, the first and second connectors 221 and 222 to predetermined positions. Through set up shell 21 on the shell surface of circuit breaker subassembly, not only can carry out spacingly to zero sequence transformer 223, can also prevent that outside dust from getting into and interfering zero sequence transformer 223 to leakage current's detection, greatly improved the stability of device. Further, the housing 21 is provided with an operation hole 213 at a position corresponding to each fastener 225 of the pair of fasteners 225, the operation hole 213 being provided for an operation member to be inserted to reliably fix the fastener 225.

Fig. 7 illustrates an isometric view of a circuit breaker assembly and an electrical leakage detection device according to another embodiment of the present disclosure. In one embodiment, as shown in fig. 7, a barrier 2110 is provided inside the opening support 211. One end of the barrier 2110 is connected to an end of the open support portion 211 adjacent to the positioning portion 210, and the other end is connected to an end of the open support portion 211 facing away from the positioning portion 210. The barrier 2110 can act as a layer of interruption between two circuit breakers 1 in a neutral position in the circuit breaker assembly. It should be understood that other types of barriers to achieve the above-described functionality will occur to those of ordinary skill in the art based on the teachings provided herein, and such implementations are within the scope of this disclosure.

Fig. 8 illustrates a schematic structural view of a trigger mechanism according to one embodiment of the present disclosure. In one embodiment, as shown in fig. 7 and 8, the trigger mechanism 3 includes a trigger circuit 321 and a trigger handle 322. The trigger handle 322 is adapted to be connected to the switch handle of one of the circuit breakers 1 adjacent to the trigger mechanism 3 and the switch handles of each circuit breaker 1 are interconnected. In one embodiment, as shown in fig. 2 to 6, in the case that there is leakage between the circuit breaker 1 and the connected power source at the edge position, the leakage current received by the first connection portion 2212 or the second connection portion 2222 may excite the zero sequence transformer 223 to generate the sensing current. In the case that the circuit breaker 1 and the connected power supply in the middle position have leakage, the leakage current received by the trigger coil inside the circuit breaker 1 can excite the zero sequence transformer 223 to generate sensing current. In one embodiment, as shown in fig. 6 and 8, the zero sequence transformer 223 is connected to the trigger circuit 321 by a wire (the wire is not shown in the figures). In case the zero sequence transformer 223 generates a sensing current, the triggering circuit 321 is able to trigger a predetermined action. The predetermined action includes driving the trigger handles 322 to be turned off, thereby driving the switch handles of each circuit breaker 1 to be turned off. In addition, the predetermined action may further include indicating leakage information by flashing a warning light.

The leakage detection device according to the embodiment of the present disclosure can solve the problem that the overall size is too wide due to the large space between the zero sequence transformer 223 and the connection terminal 10 in the conventional split type leakage circuit breaker, and simultaneously can reduce the number of parts required during installation and connection, and reduce power consumption.

The foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvement in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (14)

1. An electrical leakage detection device (2) for a circuit breaker assembly comprising a plurality of circuit breakers (1) arranged side by side, each circuit breaker (1) of the plurality of circuit breakers (1) comprising a connection terminal (10) and a connection hole (11) connected to the connection terminal (10), characterized in that the electrical leakage detection device (2) comprises:

-a zero sequence transformer (223), the zero sequence transformer (223) being arranged adjacent to a side of the plurality of circuit breakers (1) where the wiring holes (11) are arranged, the zero sequence transformer (223) covering at least one circuit breaker (1) of the plurality of circuit breakers (1) in an intermediate position the wiring holes (11) such that the wiring holes (11) of the at least one circuit breaker (1) are adapted to connect respective wires passing through the zero sequence transformer (223);

-a first connection (221) with one end connected to the connection terminal (10) of a circuit breaker (1) of the plurality of circuit breakers (1) located at a first edge position and the other end adapted to be electrically connected to a connection corresponding to the circuit breaker (1), the first connection (221) passing through the zero sequence transformer (223); and

-A second connection (222) with one end connected to the connection terminal (10) of a circuit breaker (1) of the plurality of circuit breakers (1) located at a second edge position opposite to the first edge position, and with the other end adapted to be electrically connected to a connection corresponding to the circuit breaker (1), the second connection (222) passing through the zero sequence transformer (223).

2. The leakage detection device (2) according to claim 1, characterized in that the leakage detection device (2) further comprises a triggering mechanism (3), the triggering mechanism (3) being arranged on a side of one circuit breaker (1) of the plurality of circuit breakers (1) located at the second edge position facing away from the other circuit breakers (1), the triggering mechanism (3) being electrically connected with the zero sequence transformer (223) for triggering a predetermined action in case the zero sequence transformer (223) detects a leakage current.

3. The electrical leakage detection device (2) according to claim 1, wherein the first connection member (221) comprises:

A first body part (2211), the first body part (2211) passing through the zero sequence transformer (223);

A first connection portion (2212), the first connection portion (2212) being provided at one end of the first main body portion (2211) and extending in a direction away from the first main body portion (2211), the first connection portion (2212) being connectable to the connection terminal (10) of one of the plurality of circuit breakers (1) located at the first edge position; and

A first overlap portion (2213), the first overlap portion (2213) being provided at an end of the first main body portion (2211) facing away from the first connection portion (2212) and extending in a direction approaching the first connection portion (2212).

4. A leakage detection device (2) according to claim 3, wherein the second connection member (222) comprises:

A second body portion (2221), the second body portion (2221) passing through the zero sequence transformer (223);

a second connection portion (2222) provided at one end of the second main body portion (2221) and extending in a direction away from the second main body portion (2221), the second connection portion (2222) being connectable to the connection terminal (10) of another circuit breaker (1) located at the second edge position among the plurality of circuit breakers (1); and

And a second overlap portion (2223), the second overlap portion (2223) being provided at an end of the second main body portion (2221) facing away from the second connection portion (2222) and extending in a direction approaching the second connection portion (2222).

5. The electrical leakage detection device (2) according to claim 4, wherein the electrical leakage detection device (2) further comprises a pair of socket members (224), one (224) of the pair of socket members (224) being disposed adjacent to the first connection member (221) and having an inner side of one end thereof abutting the first overlap portion (2213), the other (224) of the pair of socket members (224) being disposed adjacent to the second connection member (222) and having an inner side of one end thereof abutting the second overlap portion (2223).

6. The electrical leakage detection device (2) according to claim 5, wherein each jack member (224) of the pair of jack members (224) is provided with a jack (2240) for electrically connecting a plug wire of the corresponding circuit breaker (1).

7. The electrical leakage detection device (2) according to claim 6, wherein the electrical leakage detection device (2) further comprises a pair of fasteners (225), one fastener (225) of the pair of fasteners (225) being disposed adjacent to the first connector (221) and having one end thereof abutting the receptacle member (224) disposed adjacent to the first connector (221), the other fastener (225) of the pair of fasteners (225) being disposed adjacent to the second connector (222) and having one end thereof abutting the receptacle member (224) disposed adjacent to the second connector (222).

8. The leakage detection device (2) according to any one of claims 1 to 7, wherein the leakage detection device (2) further comprises a housing (21), the housing (21) being coupled to a housing face of an end of the plurality of circuit breakers (1) provided with the wiring aperture (11).

9. The leakage detecting device (2) according to claim 8, wherein a positioning portion (210) is formed on a position of the housing (21) corresponding to one end of the zero sequence transformer (223), the positioning portion (210) abutting against the zero sequence transformer (223) to restrict the zero sequence transformer (223) to a predetermined position.

10. The leakage detection device (2) according to claim 9, characterized in that the housing (21) comprises an open support (211) arranged inside the zero sequence transformer (223), one end of the open support (211) abutting against the inside of the zero sequence transformer (223) and the other end of the first connection piece (221) and the second connection piece (222) to limit the zero sequence transformer (223), the first connection piece (221) and the second connection piece (222) to a predetermined position.

11. The leakage detection device (2) according to claim 10, characterized in that a blocking member (2110) is provided inside the open support portion (211), one end of the blocking member (2110) being connected to an end of the open support portion (211) adjacent to the positioning portion (210), the other end being connected to an end of the open support portion (211) facing away from the positioning portion (210).

12. The electrical leakage detection device (2) according to any one of claims 5 to 7, wherein the electrical leakage detection device (2) further comprises a housing (21), the housing (21) being coupled to a housing face of the plurality of circuit breakers (1) at one end provided with the wiring holes (11), a plug wire port (212) being provided in a position of the housing (21) corresponding to each of the pair of plug wire members (224), the plug wire port (212) being in communication with a corresponding plug wire (2240) for insertion of a plug wire of the corresponding circuit breaker (1).

13. The leakage detection device (2) according to claim 7, wherein the leakage detection device (2) further comprises a housing (21), the housing (21) being coupled to a housing face of the plurality of circuit breakers (1) at one end provided with the wiring holes (11), an operation hole (213) being provided in the housing (21) at a position corresponding to each fastener (225) of the pair of fasteners (225), the operation hole (213) being for an operation piece to extend into.

14. A circuit breaker assembly, characterized by comprising a leakage detection device (2) according to any one of claims 1 to 13.