CN218939547U

CN218939547U - Leakage protection module and plug-in circuit breaker

Info

Publication number: CN218939547U
Application number: CN202222472796.3U
Authority: CN
Inventors: 罗志君; 卢科军; 周长青; 付浩
Original assignee: Shanghai Chint Intelligent Technology Co Ltd
Current assignee: Shanghai Chint Intelligent Technology Co Ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2023-04-28
Anticipated expiration: 2032-09-19

Abstract

The utility model provides a leakage protection module, which comprises a housin, the mutual-inductor, tripping device, testing mechanism and wiring subassembly, the casing includes mutually perpendicular and the first casing and the second casing of intercommunication, first casing one end is for the module operation face that is equipped with the second pilot hole, be equipped with first connection side between the both ends of first casing, first connection side is towards the second casing, and be equipped with the linkage hole on the first casing, the second casing includes first wiring side and the second wiring side parallel with the module operation face, first wiring side, first wiring mouth has been seted up respectively to the second wiring side, the second wiring mouth, wiring subassembly is including the first wiring piece that connects gradually, connecting wire and second wiring piece, first wiring piece, the second wiring piece corresponds the setting with first wiring mouth, second wiring mouth respectively. In the utility model, the first shell and the second shell are matched with the circuit breaker by adopting two mutually perpendicular planes, so that the wiring assembly positioned in the second shell is more convenient to wire with the plug-in circuit breaker.

Description

Leakage protection module and plug-in circuit breaker

Technical Field

The utility model relates to the field of piezoelectric devices, in particular to a leakage protection module and a plug-in circuit breaker.

Background

The low voltage circuit breaker can be used for distributing electric energy and protecting overload and short circuit of the circuit and the power supply equipment, and can also be used for infrequent switching of the circuit and infrequent starting of the motor. The existing circuit breakers are divided into plug-in circuit breakers, fixed circuit breakers and drawer type circuit breakers according to the installation mode, wherein the use safety of electrical equipment can be effectively improved due to the use of the plug-in circuit breakers, the assembly is convenient and quick, and the plug-in circuit breakers are widely applied to industries such as communication and the like. However, the existing circuit breaker is generally required to have a leakage protection function, but because the plug-in circuit breaker is limited by the size and the internal structure, it is difficult to arrange the leakage protection module inside, and it is also difficult to match with a proper accessory module, thereby affecting the safe use of the plug-in circuit breaker.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a leakage protection module and a plug-in circuit breaker.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the leakage protection module comprises a shell, wherein a mutual inductor, a tripping mechanism, a testing mechanism and a wiring assembly penetrating through the mutual inductor are arranged in the shell, the testing mechanism comprises a testing loop and a testing button, the shell comprises a first shell and a second shell, one end of the first shell is a module operation surface provided with a second assembly hole, the other end of the first shell is vertically connected with one end of the second shell and is communicated with the second shell,

The second assembly hole is used for installing a test button,

a first connecting side surface is arranged between two ends of the first shell, the first connecting side surface faces the second shell, a linkage hole is arranged on the first shell,

the second shell comprises a first wiring side surface and a second wiring side surface which are parallel to the module operation surface, the first wiring side surface is provided with at least one first wiring port, the second wiring side surface is provided with at least one second wiring port corresponding to the first wiring port,

the wiring assembly comprises a first wiring piece, a connecting wire and a second wiring piece which are sequentially connected, wherein the first wiring piece is correspondingly arranged with the first wiring port and is used for being connected with a wiring terminal of the plug-in circuit breaker, and the second wiring piece is correspondingly arranged with the second wiring port and is used for being connected with an external conductive piece.

Preferably, the first wiring member is a plate-shaped conductor, the first wiring member extends out of the second housing through the first wiring port for being spliced with a wiring terminal of the plug-in circuit breaker, and the second wiring member is a bus bar clamp corresponding to the second wiring port.

Preferably, the plate surface of the first wiring piece is provided with a convex anti-falling part, and the anti-falling part is used for increasing the contact surface of the first wiring piece; the middle outer side of the connecting wire is coated with an insulating layer, and the first end and the second end of the connecting wire are welded with the first wiring piece and the second wiring piece respectively.

Preferably, one end of the second shell connected with the first shell is in the length direction of the second shell, the plurality of first wiring ports are distributed on the side face of the first wiring at intervals along the length direction of the second shell, and the connecting wires are distributed along the length direction of the second shell.

Preferably, the transformer is located in the middle of the second casing, and the plurality of second wiring ports are arranged on the side face of the second wiring at intervals along the length direction of the second casing.

Preferably, the mutual inductor is located at the communication position of the first shell and the second shell, and the plurality of second wiring ports are arranged around the mutual inductor and are arranged on the side face of the second wiring in an array mode.

Preferably, the first shell is fixedly connected with the shell of the plug-in circuit breaker, and at least one group of limiting parts and limiting grooves which are in mutually limiting fit are arranged between the second shell and the shell.

Preferably, the second casing is equipped with a plurality of spacing portions that set up along its length direction interval, and every spacing portion is including protruding in the slip table of casing, and radial outside protrusion is extended by one side of slip table at least and is formed the draw-in table, and the shell is equipped with a plurality of spacing grooves that correspond complex with spacing portion, outwards enlarges the same end of forming the dismouting hole by every spacing groove, the external diameter of dismouting hole is greater than or equal to the external diameter of draw-in table, and the internal diameter of every spacing groove is less than the external diameter of draw-in table and is greater than or equal to the external diameter of slip table.

Preferably, the whole cuboid that is of first casing, the one end terminal surface that is perpendicular to first casing length direction is the module operation face, and the other end terminal surface that is opposite with the module operation face is equipped with the breach and is used for the breach butt joint with second casing one end, and the lateral wall of connection between breach and module operation face is first connection side.

Preferably, the module operation surface is further provided with a first assembly hole, and the tripping mechanism comprises an elastic indicator for indicating faults, and the elastic indicator is slidably assembled in the first assembly hole.

Preferably, the tripping mechanism comprises an elastic indicating piece, a tripping device, a circuit board and a rotating piece, wherein the rotating piece is rotationally assembled between the tripping device and the circuit board and is used for being connected with the plug-in circuit breaker in a linkage way, the tripping device and a mutual inductor are respectively connected with the circuit board, fault current is detected at the mutual inductor, and the tripping device acts to drive the rotating piece to enable the plug-in circuit breaker to trip.

Preferably, the direction from one end of the first shell provided with the module operation surface to the other end connected with the second shell is the length direction of the first shell, the tripping mechanism is arranged along the length direction of the first shell, the elastic indication piece and the test button are both arranged at one end close to the module operation surface, the circuit board is arranged at one end of the first shell close to the second shell, the release is arranged between the elastic indication piece and the circuit board, the rotating piece is rotationally assembled between the movable iron core and the elastic indication piece of the release, and the two ends of the rotating piece are respectively matched with the elastic indication piece and the movable iron core.

Preferably, an assembling structure is arranged between the first shell and the second shell, and the first shell and the second shell are assembled and disassembled along the length direction of the first shell or along the length direction of the second shell by the assembling structure;

the assembly structure comprises a sliding groove and a sliding part which are matched with each other, and/or a buckle and a clamping groove which are matched with each other.

Preferably, the tripping mechanism and the testing mechanism form a first module, the mutual inductor and the wiring assembly form a second module, the first module is assembled in the first shell, and the second module is assembled in the second shell.

The utility model also provides a plug-in circuit breaker, which comprises a shell, wherein two ends of the shell are respectively used as a wiring terminal and an operation end, a circuit breaker body is assembled in the shell between the wiring terminal and the operation end, the plug-in circuit breaker further comprises the leakage protection module which is assembled with the shell in a matched manner through a shell, the first shell is arranged along the side wall parallel to the side wall connected with the wiring terminal and the operation end, the first connecting side surface is attached to the side wall of the shell of an adjacent circuit breaker, the second shell is attached to the wiring terminal of the shell along the direction perpendicular to the first shell, the first wiring port of the first wiring side surface corresponds to the wiring terminal of the wiring terminal one by one, the second wiring side surface is opposite to the wiring terminal, and the first wiring piece of the wiring assembly is connected with the wiring terminal of the plug-in circuit breaker.

Further, the circuit breaker body includes at least one circuit breaker utmost point, first casing and circuit breaker utmost point parallel arrangement, and every circuit breaker utmost point includes handle mechanism, binding post and operating device, handle mechanism, binding post correspond respectively and set up in the operating end of shell, wiring end, handle mechanism and operating device linkage are connected, and operating device includes the universal driving axle, and test button sets up side by side with the handle mechanism of adjacent circuit breaker utmost point, and the universal driving axle of adjacent circuit breaker utmost point passes the link hole of shell lateral wall, first connection side and trip mechanism cooperation.

According to the leakage protection module and the plug-in circuit breaker, the first shell and the second shell are matched with the circuit breaker by adopting the two mutually perpendicular planes, so that the wiring assembly in the second shell is more convenient to wire with the plug-in circuit breaker, and the matching stability of the leakage protection module and the circuit breaker is improved.

In addition, the first casing is dismantled with the second casing and is connected, makes things convenient for earth leakage protection module's concatenation.

In addition, the leakage protection module is composed of two first modules and two second modules which are matched with each other, the structure of the leakage protection module dispersed in the two modules simplifies the complexity of the layout of parts in each module, and the size of each module can be adjusted according to the number and the volume of internal parts.

In addition, the leakage protection module is detachably connected with the circuit breaker, so that the leakage protection module is convenient to detach from the circuit breaker.

In addition, the layout position of the transformer is flexible, and the connecting wires are distributed along the length direction of the second shell, so that the size of the second shell is reduced.

Drawings

Fig. 1 is a schematic view of an assembly structure of a leakage protection module and a circuit breaker according to the present utility model (first embodiment);

fig. 2 is a schematic view of the structure of the earth leakage protection module and the circuit breaker when separated (first embodiment);

fig. 3 is a schematic structural view of a side of the earth leakage protection module and the circuit breaker according to the present utility model (first embodiment);

FIG. 4 is an enlarged partial schematic view of the portion A of FIG. 3 (first embodiment);

FIG. 5 is a schematic structural view of the first housing and the second housing according to the present utility model (first embodiment);

FIG. 6 is an enlarged partial schematic view of portion A of FIG. 5;

fig. 7 is a schematic diagram of a first layout structure of the transformer according to the present utility model (first embodiment);

FIG. 8 is a cross-sectional view of a transformer of the present utility model;

fig. 9 is a schematic diagram of a second layout structure of the transformer according to the present utility model (first embodiment);

fig. 10 is a schematic view of the internal structure of the first housing (first embodiment) in the present utility model;

Fig. 11 is a schematic view of the structure of the trip mechanism in the home position (first embodiment) in the present utility model;

fig. 12 is a schematic view of the structure of the trip mechanism in the present utility model (first embodiment) when the trip unit is actuated;

fig. 13 is a schematic view of a trip mechanism of the present utility model (first embodiment) for preventing erroneous closing;

FIG. 14 is a schematic view of the structure of the rotating member and the linkage shaft according to the present utility model (first embodiment);

fig. 15 is a schematic structural view of a trip unit according to the present utility model (first embodiment);

FIG. 16 is a schematic view of the structure of the rotary member of the present utility model (first embodiment);

FIG. 17 is a schematic view of the structure of the indicator of the present utility model (first embodiment);

FIG. 18 is a schematic view of the structure of the test button of the present utility model (first embodiment);

FIG. 19 is a schematic view of a second connector of the present utility model;

fig. 20 is a schematic view of the assembly of the earth leakage protection module and the circuit breaker of the present utility model (second embodiment);

fig. 21 is a schematic view of the structure of the earth leakage protection module of the present utility model when separated from the circuit breaker (second embodiment);

fig. 22 is a schematic view of the structure of the side of the earth leakage protection module and the circuit breaker of the present utility model (second embodiment);

FIG. 23 is an enlarged partial schematic view of portion A of FIG. 22;

FIG. 24 is a schematic view of the structures of the first housing and the second housing (second embodiment) in the present utility model;

fig. 25 is a schematic view of the structure of the first housing in the present utility model (second embodiment);

fig. 26 is a schematic structural view of a second housing in the present utility model (second embodiment);

fig. 27 is a schematic view of the structure of the trip mechanism and the test mechanism of the present utility model (second embodiment);

fig. 28 is a schematic structural view of the trip mechanism in the present utility model (second embodiment);

fig. 29 is a schematic view showing the structure of the rotor engaged with the coupling shaft in the present utility model (second embodiment);

fig. 30 is a schematic diagram of the layout structure of the transformer in the present utility model (second embodiment);

fig. 31 is a schematic structural view of a trip unit according to the present utility model (second embodiment);

FIG. 32 is a schematic view of the structure of the rotary member of the present utility model (second embodiment);

FIG. 33 is a schematic view of the structure of the indicator of the present utility model (second embodiment);

FIG. 34 is a schematic view of the structure of one end of the indicator of the present utility model (second embodiment);

fig. 35 is a schematic structural view of a test button in the present utility model (second embodiment).

Detailed Description

Specific embodiments of the earth leakage protection module and the plug-in circuit breaker of the present utility model are further described below with reference to the examples given in fig. 1-35. The earth leakage protection module and the plug-in circuit breaker of the present utility model are not limited to the description of the following embodiments.

As shown in fig. 1 to 19, a leakage protection module comprises a housing, a first module and a second module, wherein a wiring port is formed in the housing, the first module and the second module are assembled in the housing and are matched with each other, the first module comprises a tripping mechanism and a testing mechanism, the second module comprises a transformer 21 and a wiring assembly 22, the wiring assembly 22 is matched with a circuit breaker 3 through the wiring port, the transformer 21 acquires a current signal through the wiring assembly 22, and the tripping mechanism is triggered when the leakage current signal is detected.

Specifically, the tripping mechanism of the embodiment includes an elastic indicator, a tripper 11, a rotating member 12, a circuit board 15 and a transformer 21, wherein the elastic indicator is assembled in a shell in a sliding manner, the tripper 11 and the transformer 21 are respectively connected with the circuit board 15 and assembled in the shell, the transformer 21 is used for acquiring a current signal and feeding back the current signal to a microcontroller connected to the circuit board 15, the microcontroller judges whether fault current exists according to the current signal, the rotating member 12 is rotationally assembled between a movable iron core 114 of the tripper 11 and the elastic indicator, two ends of the rotating member 12 are respectively matched with the elastic indicator and the movable iron core 114, when an electric leakage fault occurs, the microcontroller outputs a control signal to drive the tripper 11 to act, and the movable iron core 114 of the tripper 11 drives the rotating member 12 to rotate, so that the elastic indicator is triggered to indicate the electric leakage fault; the test mechanism comprises a test loop, a circuit board 15, a mutual inductor 21 and a test button 161, wherein the test loop and the mutual inductor 21 are respectively connected with the circuit board 15 and assembled in the shell together, the test button 161 is assembled in the shell in a sliding way, the break point of the test loop can be switched on or off by operating the test button 161, after the test loop is switched on, the mutual inductor 21 detects an analog leakage current, and a microcontroller of the circuit board 15 outputs an action signal to enable the release 11 to act, wherein the release mechanism and the test mechanism preferably share the mutual inductor 21 and the circuit board 15; the wiring assembly 22 is electrically connected to the circuit breaker 3 through the wiring opening.

Preferably, as shown in fig. 1 to 6, the housing of the earth leakage protection module includes a first housing 1a and a second housing 2a, and the first module and the second module are respectively assembled in the first housing 1a and the second housing 2 a. In this embodiment, the second module formed by the transformer 21 and the wiring assembly 22 is assembled in the second housing 2a, which is beneficial to the compactness of the overall structure of the wiring and leakage protection module and the assembly with the circuit breaker. Of course, as other embodiments, the transformer 21 may also form the first module together with the tripping mechanism and the testing mechanism.

The improvement point of the application is that one end of a first shell 1a is provided with a second assembly hole 1a6, one end provided with the second assembly hole 1a6 is a module operation surface, a test button 161 is assembled in the second assembly hole 1a6 in a sliding way, the other end of the first shell 1a is vertically connected with one end of a second shell 2a and keeps communicated, the whole shell is in an L-shaped structure, a first connection side surface facing the second shell 2a is arranged between two ends of the first shell 1a, a linkage hole 1a1 is arranged on the first connection side surface, the linkage hole 1a1 is used for enabling a linkage shaft 32 of a circuit breaker 3 to extend into the shell, or the linkage shaft of a tripping mechanism extends out of the linkage hole 1a1 to be matched with the circuit breaker 3; the second housing 2a includes a first wiring side and a second wiring side, the first wiring side and the second wiring side are parallel to the module operation surface, at least one first wiring port 2a2 is provided on the first wiring side, a second wiring port 2a3 is provided on the second wiring side, the second wiring port 2a3 corresponds to the first wiring port 2a2 one by one, the wiring assembly 22 disposed between the first wiring port 2a2 and the second wiring port 2a3 includes a first wiring member 221, a second wiring member 222 and a connection wire 223, wherein the connection wire 223 is connected between the first wiring member 221 and the second wiring member 222, the first wiring member 221 corresponds to the first wiring port 2a2 to be connected with the circuit breaker, and the second wiring member 222 corresponds to the second wiring port 2a3 to be applied to be connected with an external conductive member.

The first casing adopts two mutually perpendicular's plane and circuit breaker cooperation with the second casing for the wiring subassembly 22 that is located the second casing is more convenient with plug-in circuit breaker wiring, has improved the cooperation stability of earth leakage protection module and circuit breaker. It should be noted that, in other embodiments, the first connection side may be an open side, which is not good for insulation and reliability, and the second connection port 2a3 and the first connection port 2a2 may be opposite to each other or may be offset.

Preferably, the first wiring member 221 is a plate-shaped conductor, the first wiring member 221 extends out of the second housing 2a through the first wiring port 2a2 to be plugged with the circuit breaker 3, and the second wiring member 222 is a bus bar corresponding to the second wiring port 2a3, so that the leakage protection module is more suitable for a plug-in circuit breaker, and plug-in wiring is convenient to realize.

Preferably, the first module and the second module are respectively disposed along the length direction of the first housing 1a and the length direction of the second housing 2a, the direction from one end of the first housing 1a, where the operation surface of the module is disposed, to the other end connected with the second housing 2a is the length direction of the first housing 1a, where the length direction of the first housing 1a, that is, the length direction of the circuit breaker 3 (the left-right direction in fig. 1), the direction from one end of the second housing 2a, where the connection between the second housing 2a and the first housing 1a, to the other end, is the length direction of the second housing 2a, that is, the width direction of the circuit breaker 3 (the up-down direction in fig. 1), and the height direction of the circuit breaker 3 (the front-back direction in fig. 1) are both perpendicular to the length direction of the circuit breaker 3, that is, perpendicular to the length direction of the first housing 1a and the length direction of the second housing 2a, and two different planes of the circuit breaker 3 are adopted, and the circuit breaker 3 are matched, and the structure of the two modules is dispersed in two modules is simplified, the structure of each module is simplified, the number of parts is simplified, the number of the parts is smaller than the inside the circuit breaker, and the number of the parts is more convenient to insert into the circuit breaker, and the circuit breaker is more than the circuit breaker 3, and the wiring is more convenient, and the wiring is more stable.

Preferably, the first casing 1a and the second casing 2a of the leakage protection module are detachably assembled to form a casing of the leakage protection module. The assembly structure is arranged between the first casing 1a and the second casing 2a, the assembly structure enables the first casing 1a and the second casing 2a to be assembled and disassembled along the length direction of the first casing 1a or the length direction of the second casing 2a, the detachable structure simplifies the assembly difficulty of the first module and the second module, and the assembly is convenient, wherein the assembly structure comprises a sliding groove a1 and a sliding part a2 (see fig. 6) which are matched with each other, and/or a clamping groove a4 and a clamping buckle a3 which are matched with each other, and of course, other convenient-to-detach structures (see fig. 24) can be further included.

Further, the first casing 1a is fixedly connected with the casing 3a of the circuit breaker 3, the second casing 2a is in limit fit with the casing 3a of the circuit breaker 3, that is, at least one limit part 2a1 is arranged on one side, facing the circuit breaker 3, of the second casing 2a in a protruding mode, corresponding to the limit groove 3a1 of the casing 3a of the circuit breaker 3, of the limit part 2a, the second casing 2a and the circuit breaker 3 are in limit fit, the wiring assembly 22 is conveniently matched with the wiring terminal of the circuit breaker 3, of course, the first casing 1a and the casing 3a can also be in limit fit, but the trip mechanism and the circuit breaker 3 are not beneficial to guaranteeing the stability of the fit.

In connection with fig. 1-19, an embodiment of a first earth leakage protection module is provided, the earth leakage protection module comprises a housing, a tripping mechanism and a testing mechanism, wherein the tripping mechanism and the testing mechanism are assembled in the housing, the housing is formed by vertically splicing a first housing 1a and a second housing 2a, the whole housing is in an L-shaped structure, in the embodiment, the first housing 1a is communicated with one end of the second housing 2a, preferably, the length of one side of the first housing 1a facing the second housing 2a is equal to the length of the circuit breaker 3, and the length of one side of the second housing 2a facing the first housing 1a is equal to the width of the circuit breaker 3.

As shown in fig. 1-3, 5 and 7-9, the whole of the first casing 1a and the second casing 2a presents a cuboid, the first casing 1a is preferably formed by covering a first cover 1ab and a first base 1aa, wherein the first cover 1ab is a first connection side, one end face of the first base 1aa perpendicular to the length direction of the first casing 1a is a module operation face, the first cover 1ab and the first base 1aa can form detachable connection with a clamping groove through a buckle, the second casing 2a is formed by matching a second base 2aa and a second cover 2ab covering the second base 2aa, the second cover 2ab is a first connection side, the bottom wall of the second base 2aa opposite to the second cover 2ab in parallel is a second connection side, the second cover 2ab and the second base 2aa can also form detachable connection with the clamping groove through the buckle matched with the clamping groove, one end of the first casing 1a and the second casing 2a is provided with a notch, that is, a gap is formed at one end of the first cover 1ab of the first housing 1a and one end of the second cover 2ab of the second housing 2a, the gap of the first housing 1a is located at one end far away from the module operation surface, after the first housing 1a is assembled with the second housing 2a, the gap of the first housing 1a and the gap of the second housing 2a are abutted to keep the interior communicated, a sliding groove a1 and a sliding part a2 are arranged at one end part of the first housing 1a communicated with the second housing 2a in a matched manner, that is, a sliding groove a1 and a sliding part a2 which are matched with each other are arranged at the inner side walls of the first housing 1a and the second housing 2a (that is, the inner side walls of the first base 1aa and the second base 2 aa) corresponding to the gaps, so that the first housing 1a and the second housing 2a are in a sliding fit along the length direction of the second housing 2a (the horizontal direction of the second housing 2 a) to realize the sliding and the dismounting of the first housing 1a and the second housing 2a, that is, in fig. 5, a sliding groove a1 is provided on the inner side of one end of the first housing 1a, at this time, the sliding groove a1 forms a sliding portion a2 on the side wall of the first housing 1a, a sliding groove a1 is also provided on the side of the end of the second housing 2a, a sliding portion a2 is formed on the side wall of the second housing 2a on one side of the sliding groove a1, and the sliding grooves a1 of the first housing 1a and the second housing 2a are slidably engaged with the sliding portion a2, so that the first housing 1a and the second housing 2a slide along the length direction of the second housing 2a (the horizontal direction of the second housing 2 a), and of course, the number of the sliding portions a2 and the sliding grooves a1 can be adjusted according to practical situations.

A plurality of limiting parts 2a1 are arranged on one side of the second shell 2a facing the circuit breaker 3 in a protruding way, namely a plurality of limiting parts 2a1 are arranged on the second cover body 2ab (the first wiring side face), each limiting part 2a1 is matched with a limiting groove 3a1 arranged on the shell 3a of the circuit breaker 3 (fig. 4), preferably, as shown in fig. 3-5, the plurality of limiting parts 2a1 are arranged at intervals along the length direction of the second shell 2a, each limiting part 2a1 comprises a sliding table 2a11 protruding out of the shell, and at least one side of the sliding table 2a11 protrudes outwards in the radial direction to form a clamping table 2a12; correspondingly, the plurality of limiting grooves 3a1 are arranged on the outer shell 3a at intervals along the length direction of the second shell 2a (that is, the width direction of the circuit breaker 3), each limiting groove 3a1 is preferably in a strip shape, the strip-shaped limiting grooves 3a1 extend along the length direction of the second shell 2a, the same end of each limiting groove 3a1 is outwards expanded to form a dismounting hole 3a11, the outer diameter of the dismounting hole 3a11 is larger than or equal to the outer diameter of the clamping table 2a12, the inner diameter of each limiting groove 3a1 is smaller than or equal to the outer diameter of the sliding table 2a12, so that the clamping table 2a12 can prevent the leakage protection module from being separated from the circuit breaker 3 when the sliding table 3a11 is in sliding fit with the limiting grooves 3a1, in this embodiment, each limiting part 2a1 is integrally in a T-shaped boss, the limiting grooves 3a1 are also in a T shape after the dismounting hole 3a11 is formed, and the limiting parts 2a1 and the limiting grooves 3a1 can be in other shapes.

As shown in fig. 7 to 9, a transformer 21 is provided in the middle of the second housing 2a, a plurality of pairs of first wire connection ports 2a2 (not shown in this embodiment, see fig. 26) and second wire connection ports 2a3 (not shown in this embodiment, see fig. 21) are provided on both sides of the transformer 21, the plurality of first wire connection ports 2a2 are provided on the first wire connection side (i.e., the second cover 2 ab) of the second housing 2a at intervals along the length direction of the second housing 2a, the plurality of second wire connection ports 2a3 are provided on the second housing 2a on the side opposite to the circuit breaker 3 along the length direction of the second housing 2a, i.e., the second wire connection ports 2a4 are provided on the second wire connection side (the second base 2 aa), the central connection line of each pair of the first wiring ports 2a2 and the second wiring ports 2a3 is perpendicular to the length direction of the first casing 1a and the length direction of the second casing 2a at the same time, namely, parallel to the height direction of the circuit breaker 3, the wiring assembly 22 connected between one first wiring port 2a2 and the second wiring port 2a3 comprises a first wiring member 221, a second wiring member 222 and a connecting wire 223, the first wiring member 221 and the second wiring member 222 are correspondingly matched with the first wiring port 2a2 and the second wiring port 2a3 respectively, the connecting wire 223 is distributed along the length direction of the second casing 2a and penetrates through the transformer 21, and the first end and the second end of the connecting wire 223 are connected with the first wiring member 221 and the second wiring member 222 respectively.

Providing a first layout of the transformer 21 in combination with fig. 7 and 8, the transformer 21 is disposed in the middle of the second housing 2a, the central axis of the transformer 21 is perpendicular to the length direction of the first housing 1a and the length direction of the second housing 2a, i.e. parallel to the height direction of the circuit breaker 3, four sets of wire connecting assemblies 22 are disposed in the second housing 2a, the connecting wires 223 of each set of wire connecting assemblies 22 pass through the central hole of the transformer 21, the central hole of the transformer 21 is divided into the same four parts by four connecting wires 223, preferably, the outer part of each connecting wire 223 is covered with an insulating layer 223a, a plurality of connecting wires 223 are arranged in a radial shape in the second housing 2a, and bare conductors are used for welding with the first wire connecting member 221 and the second wire connecting member 222 only at the first end and the second end of the connecting wire 223, in this embodiment, the central axis of the first wire connection port 2a2 is parallel to the length direction of the first housing 1a, the first wire connection member 221 is a plate-shaped conductor, the first wire connection member 221 passes through the first wire connection port 2a2 along the length direction of the first housing 1a and extends to the outside of the housing for plugging with the wire connection terminal of the circuit breaker 3, the surface of the first wire connection member 221 is provided with a protruding anti-falling portion 2211, the matching surface with the wire connection terminal is enlarged by the anti-falling portion 2211, so that the plugging matching between the two is enhanced, of course, the first wire connection member 221 is omitted, the first end of the connecting wire 223 directly extends to the outside of the first wire connection port 2a2 for plugging with the wire connection terminal, in addition, the second wire connection member 222 is a busbar clamp, and the second wire connection member 222 is arranged in the second wire connection port 2a3 in a matching manner for plugging with an external conductive member.

In connection with fig. 9, a layout manner of a second transformer 21 is provided, the transformer 21 is disposed in the middle of the second casing 2a, the central axis of the transformer 21 is parallel to the length direction of the first casing 1a, as in the above layout manner, a plurality of first wiring ports 2a2 and second wiring ports 2a3 disposed along the length direction of the second casing 2a are respectively disposed at two sides of the transformer 21, the central connection line of each pair of first wiring ports 2a2 and second wiring ports 2a3 is perpendicular to the length direction of the first casing 1a and the length direction of the second casing 2a, that is, parallel to the height direction of the circuit breaker 3, the connection wires 223 are disposed along the length direction of the second casing 2a and pass through the central hole of the transformer 21, and the plurality of connection wires 223 are radially disposed in the second casing 2a, and the first wiring member 221 and the second wiring member 222 are the same as described above.

In addition, in the above two structures, the connection wires 223 are rectangular wires, and the lengths of the connection wires 223 in each group of the wire connecting assemblies 22 are not completely the same, and in practical applications, the connection wires 223 are not limited to the above specifications, and the connection wires 223 may be circular wires.

As shown in fig. 10, a first assembly hole 1a5 and a second assembly hole 1a6 are formed at one end of the first casing 1a far away from the second casing 2a, that is, a first assembly hole 1a5 and a second assembly hole 1a6 are formed in a module operation surface, the module operation surface is an end surface of the first casing 1a, the end surface is located at the other end of the first casing 1a, which is opposite to one end communicated with the first casing 1a and the second casing 2a, a plurality of ribs are convexly arranged at the middle part of the first casing 1a, a plurality of ribs are mutually matched at the middle part of the first casing 1a to form a release mounting groove 1a3, as shown in fig. 10, the release mounting groove 1a3 is a rectangular frame which is not completely closed, and the release mounting groove 1a3 corresponds to the second assembly hole 1a6; the middle part of the first shell 1a is convexly provided with a first limiting rib 1a4, the first limiting rib 1a4 is positioned on one side of the release mounting groove 1a3 far away from the second assembly hole 1a6, and a gap is reserved between the first limiting rib 1a4 and the release mounting groove 1a 3.

As shown in fig. 11-14, an elastic indicator of a trip mechanism, a trip 11, a rotating member 12 and a circuit board 15 are assembled in a first housing 1a, a transformer 21 of the trip mechanism is assembled in a second housing 2a, the trip mechanism is arranged along the length direction of the first housing 1a, wherein the elastic indicator is assembled at one end of the first housing 1a far away from the second housing 2a in a sliding manner, the elastic indicator and a test button 161 are both arranged at one end close to an operation surface of a module, that is, the elastic indicator is assembled in a first assembling hole 1a5 in a sliding manner, the circuit board 15 is arranged at one end of the first housing 1a close to a second housing 2a, the trip 11 and the transformer 21 are respectively connected with the circuit board 15, the trip 11 is arranged in a trip mounting groove 1a3 between the elastic indicator and the circuit board 15, a movable iron core 114 of the trip 11 is positioned at one side opposite to the second assembling hole 1a6, the rotating member 12 is assembled between the movable iron core 114 and the elastic indicator 13 of the trip 11 in a rotating manner, two ends of the rotating member 12 are respectively matched with the elastic indicator and the movable iron core 12 in a first assembling hole 1a, the first end 12 is limited by the first end 1a and the movable iron core 114 is in a limited by the first end 1 b, and the first end 4 is in a limited by the gap between the rotating member and the movable indicator and the movable iron core 114 is in a limited by the first end 1 b, and the rotating member has a fault-stop condition that the movable indicator is mounted in the first end 4; as shown in fig. 8 and 9, the transformer 21 connected to the circuit board 15 and the wiring assembly 22 mated with the transformer 21 are assembled in the second housing 2a, and the wiring assembly 22 includes a first wiring member 221 mated with the circuit breaker 3 and a second wiring member 222 connected to an external conductive member, respectively, and the transformer 21 may be disposed at one end of the second housing 2a or at the middle of the second housing 2 a.

In this embodiment, the elastic indicator is provided with a mating portion 131, the rotating member 12 is respectively connected with the movable iron core 114 of the release 11 and the elastic indicator in a linkage manner, as shown in fig. 11-16, a first linkage groove 1211 is provided at a first end of the rotating member 12, the first end of the movable iron core 114 passes through the first linkage groove 1211 and is connected with the rotating member 12 in a linkage manner, a second linkage groove 1221 and an abutting portion 1222 are provided at a second end of the rotating member 12, when no leakage fault occurs, the mating portion 131 is in plug-in mating with the second linkage groove 1221 (see fig. 11), after the leakage fault occurs, the mating portion 131 is separated from the second linkage groove 1221 (see fig. 12), the mating portion 131 can be mated with the abutting portion 1222 (see fig. 13) to limit the rotating member 12 to rotate, preferably, the first end of the movable iron core 114 is limited in the first linkage groove 1211 and can slide along the length direction of the first linkage groove 1211, preferably one end inner diameter of the first linkage groove 1211 is increased to form a detachment hole 1212, and when the inner diameter of the first end of the first linkage groove 1211 is larger than the inner diameter of the second linkage groove 1211 is equal to the inner diameter of the first linkage groove 1211, and the outer diameter of the movable iron core 114 is larger than the outer diameter of the movable iron core 114 is equal to the outer diameter of the first linkage groove 1211, and the movable iron core 114 is smaller than the outer diameter of the first linkage hole 1211 is convenient to detach.

In combination with fig. 10-13 and 17, a specific structure of an elastic indicator is provided, the elastic indicator comprises an indicator 13 and a button spring 135, wherein the indicator 13 is slidably assembled in a first assembling hole 1a5, the indicator 13 comprises an indicator body, one end of the indicator body extends out of a first shell 1a as an indicator part 134, a containing groove 1320 for assembling the button spring 135 is arranged in the middle of the indicator body, a driving hole is arranged on the side wall of the indicator body, a driving part 1a21 arranged on the inner side wall of the first shell 1a penetrates through the driving hole to press the button spring 135, one end of the containing groove 1320 close to the indicator part 134 is in limiting abutting connection with one end of the button spring 135, a driving hole is arranged at one end of the containing groove 1320 away from the indicator part 134, or, as shown in fig. 10-13 and 17, when the containing groove 1320 penetrates through the side wall of the indicator body, one end of the containing groove 1320 away from the indicator part 134 is used as the driving hole, the other end of the button spring 135 abuts against the driving part 1a21 extending into the driving hole, the button spring 135 is pressed by the indicator 13 and the driving part 1a21 together by pressing the indicator 13, an elastic restoring force is provided for the indicator 13 by elastic deformation of the button spring 135, the other end of the indicator body is bent outwards to extend to form a bent rod-shaped matching part 131, in fig. 11 and 17, the matching part 131 comprises a straight section 1311 and a bent end 1312, the bent end 1312 is in plug-fit with the second linkage groove 1221 of the rotating member 12, the straight section 1311 is parallel to the pressing direction of the elastic indicator, preferably the straight section 1311 can slide along the side wall on one side of the release mounting groove 1a3, a guiding effect can be provided for pressing of the elastic indicator, meanwhile, when the abutting part 1222 abuts against the matching part 131, one side wall on one side of the release mounting groove 1a3 can further limit the indicator 13, the stability of the fitting of the indicator 13 and the rotating member 12 is enhanced, however, the straight section 1311 may not fit with the side wall of the release mounting groove 1a3, or the straight section 1311 may not be provided, and the indicator 13 may be limited only by the first mounting hole 1a 5. The shape of the indicator body is not limited to the above-described shape.

Referring to fig. 10-14 and 16, a specific structure of the rotating member 12 is provided in this embodiment, the rotating member 12 includes a rotating connecting portion 123, a first rotating arm 121 and a second rotating arm 122, preferably, the rotating connecting portion 123 is integrally formed with the first rotating arm 121 and the second rotating arm 122, in fig. 16, the rotating connecting portion 123 is cylindrical, the rotating connecting portion 123 is rotationally connected with the first housing 1a, the first rotating arm 121 is connected to one side of the rotating connecting portion 123 as a first end of the rotating member 12, a first linkage groove 1211 is formed in the middle of the first rotating arm 121, an inner diameter of one end of the first linkage groove 1211 is increased to form a disassembly hole 1212, the first linkage groove 1211 is formed integrally as a bar-shaped groove with a thick end and a thin end, the thicker end of the first linkage groove 1211 is far away from the rotating connecting portion 123, that is, the disassembly hole 1212 is located at one end far away from the rotating connecting portion 123, and the thinner end of the first linkage groove 1211 is close to the rotating connecting portion 123; the second rotating arm 122 is connected to the other side of the rotating connecting arm as the second end of the rotating member 12, in fig. 16, the length of the second rotating arm 122 is greater than that of the first rotating arm 121, the middle part of the second rotating arm 122 is bent to form a curved arm, a second linkage groove 1221 is formed in the middle part of the second rotating arm 122, and a side wall of the second rotating arm 122 far from the rotating connecting portion 123 is used as an abutting portion 1222.

Referring to fig. 10 to 14 and 15, there is provided a specific structure of the trip 11 according to the present embodiment, the trip 11 includes a yoke 111, a frame 112, a coil, a movable iron core 114 and a stationary iron core 113, wherein the yoke 111 is fixedly mounted at one end of the frame 112, the coil is wound around the outer side of the frame 112, the movable iron core 114 and the stationary iron core 113 are respectively mounted at two ends of the middle part of the frame 112, wherein the stationary iron core 113 is mounted at one end of the frame 112 provided with the yoke 111, the stationary iron core 113 is located at one end of the frame 112 facing the second mounting hole 1a6, the movable iron core 114 is located at one end facing away from the second mounting hole 1a6, in the drawing, a first end of the movable iron core 114 extends out of the frame 112, that is, a first end of the movable iron core 114 extends out of the right end of the frame 112 in the drawing, the diameter of the first end of the movable iron core 114 near the end part is the thinnest, the part with the thinnest outer diameter of the movable iron core 114 is smaller than or equal to the inner diameter of the first linkage groove 1211 far away from the end of the disassembly hole 1212, the inner diameter of the disassembly hole 1212 is larger than or equal to the outer diameter of the first end part of the movable iron core 114, after the first end of the movable iron core 114 passes through the first linkage groove 1211, the first end of the movable iron core 114 is in sliding fit with the area of the first linkage groove 1211 far away from the disassembly hole 1212, at the moment, the first end of the movable iron core 114 is clamped with the first linkage groove 1211 far away from the end of the disassembly hole 1212, the movable iron core 114 and the rotary piece 12 are prevented from falling off, and an iron core spring is connected between the movable iron core 114 and the static iron core 113, namely, the iron core spring is connected between the second end of the movable iron core 114 and the static iron core 113.

As shown in fig. 10, 11 and 18, a test button 161 and a test circuit are further provided in the first housing 1a, wherein the test button 161 is slidably disposed at an end of the first housing 1a away from the second housing 2a, that is, the test button 161 is assembled in the second assembly hole 1a6, and preferably, a foolproof structure is provided between the test button 161 and the second assembly hole 1a6 to ensure that the test button 161 is properly assembled in the second assembly hole 1a6, the test button 161 is used to switch on or off a break point of the test circuit, the test circuit passes through the transformer 21 and is connected with the circuit board 15, and after the test circuit is switched on, the transformer 21 obtains an analog leakage signal and outputs an action signal to actuate the release 11.

In this embodiment, the test circuit includes a first elastic conductive element 1621 and a second elastic conductive element 1622, as shown in fig. 10 and 11, where a break point of the test circuit is formed by the first end of the first elastic conductive element 1621 and the first end of the second elastic conductive element 1622 opposite to each other at intervals, a wire passing through the transformer 21 is connected between the second end of the first elastic conductive element 1621 and the second end of the second elastic conductive element 1622, preferably, the first elastic conductive element 1621 and the second elastic conductive element 1622 are torsion springs, the first elastic conductive element 1621 and the second elastic conductive element 1622 are respectively located at two sides of the test button 161, a through slot 1611 is provided in the middle of the test button 161 (see fig. 18), the first end of the first elastic conductive element 1621 passes through the through slot 1611 and forms a break point with the first end of the second elastic conductive element 1622, and in fig. 10 and 11, the second end of the first elastic conductive element 1621 abuts against the inner side of the first housing 1a, so that the first end of the first elastic conductive element 1621 can also provide a reset force for the test button, such as to the first elastic button 161 and the first elastic conductive element 1621 can be omitted, and the first elastic conductive element 161 can be further included between the first end and the first elastic conductive element 1621 and the first elastic conductive element 161 can be omitted, and the preferred structure is further tested; the second end of the second elastic conductive element 1622 abuts against the inner sidewall of the first housing 1a, and in this embodiment, the second end of the second elastic conductive element 1622 abuts against the edge of the driving portion 1a 21.

Referring to fig. 18, a specific structure of a test button 161 is provided, the test button 161 includes a button body, the button body is an oval column, one end of the button body is used as a pressing portion 1614 to extend out of a first housing 1a, a through slot 1611 is provided in the middle of the button body, a first end of a first elastic conductive element 1621 may pass through the through slot 1611, an edge of the other end of the button body extends outwards to form a limiting plate 1612, the limiting plate 1612 is in a rectangular plate structure, an edge of one side of the limiting plate 1612 protrudes outwards to form a foolproof portion 1613, and a foolproof slot matched with the foolproof portion 1613 is provided on a hole wall of a second assembly hole 1a6, so as to ensure uniqueness of a direction when the test button 161 is assembled.

As shown in fig. 1 to 4, there is provided a plug-in circuit breaker 3 which is matched with the present embodiment, the plug-in circuit breaker 3 includes a housing 3a and a circuit breaker body assembled in the housing 3a, one end of the housing 3a is used as an operation end, the other end is used as a wiring terminal, a wiring socket is provided at the wiring terminal, a side wall of the housing 3a connected between the operation end and the wiring terminal is provided along the length direction of the circuit breaker 3, the circuit breaker body is provided in the housing 3a between the operation end and the wiring terminal, and the circuit breaker body is provided with a wiring terminal matched with the wiring socket; the leakage protection module of the above embodiment is disposed on one side of the casing 3a, the first casing 1a is disposed parallel to the side wall connected to the terminal and the operation end, the second casing 2a is disposed parallel to the terminal, that is, the first casing 1a of the leakage protection module is disposed along the length direction of the circuit breaker 3, that is, the length direction of the first casing 1a (the vertical direction of the first casing 1a in the drawing), the second casing 2a of the leakage protection module is disposed along the width direction of the circuit breaker 3, that is, the length direction of the second casing 2a (the horizontal direction of the second casing 2a in the drawing), in this embodiment, the leakage protection module and the casing 3a are in limit fit with the limit groove 3a1 through the limit part 2a1, after the first terminal 221 is plugged into the connection terminal, the clamping table 2a12 is pushed to slide in the width direction of the circuit breaker 3a small extent after passing through the dismounting hole 3a11, so that the sliding table 2a11 is in the width direction of the circuit breaker 3a and the limit groove 3a1 is slidingly fit with the limit groove 1, and when the sliding table 2a1 is slidingly fitted to the sliding table 2a 3a is far from the limit groove 3a to the limit groove 3a, in addition, in this embodiment, the leakage protection module is fixed to one end is mounted to the circuit breaker 3 a.

In this embodiment, the breaker body includes at least one breaker pole, each breaker pole includes a connection terminal, a handle mechanism, an operating mechanism and a contact mechanism, wherein the connection terminal is electrically connected with a first connection piece 221 of the leakage protection module, a main line of the breaker 3 connected between the connection terminals passes through the transformer 21, a current signal of the main line is obtained by the transformer 21, the leakage protection module can take electricity from the main line of the breaker 3, at this time, a connection assembly 22 arranged in the second housing 2a is connected with the connection terminal of the breaker 3, the leakage protection module can also supply electricity alone, in the figure, the breaker pole on the side of the first housing 1a of the leakage protection module is arranged in parallel with the first connection terminal, namely the first housing 1a is arranged in parallel with the handle mechanism of the adjacent breaker pole, a first connection side is attached to a side wall of the housing 3a of the adjacent breaker pole, namely a side wall of the first cover 1ab, a coupling shaft 32 of the adjacent breaker pole passes through a coupling hole 1a1 and extends into the first housing 2a, namely the first connection terminal 2a is attached to the first connection terminal 2a, namely the side face of the first connection terminal 2a is attached to the first connection terminal 2a is arranged in the opposite direction of the first housing 2a, and the first connection terminal 2a is attached to the side face 2a corresponding connection terminal 2 a; the handle mechanism, the operating mechanism and the moving contact of the contact mechanism are sequentially connected in a linkage way, the operating mechanism comprises a lever, a jump buckle and a lock catch, the lever is rotationally assembled in the shell 3a, the jump buckle and the lock catch are respectively rotationally assembled on the lever, one end of the jump buckle is in snap connection with one end of the lock catch, preferably, the lock catch is connected with a linkage shaft 32, the linkage shaft 32 penetrates through the shell 3a and the side wall of the first shell 1a (namely, the first connecting side surface of the embodiment, namely, the first cover 1 ab) to extend into the first shell 1a to be matched with the rotating piece 12, and as shown in fig. 2, 3 and 5, a linkage hole 1a1 is arranged in the middle of the first shell 1a, namely, a linkage hole 1a1 is arranged in the middle of the first cover 1ab, and the linkage hole 1a1 is a waist-shaped hole and is positioned on the swinging track of the rotating piece 12. In addition, the casing 3a corresponding to each circuit breaker pole is provided with a wiring socket and a limiting groove 3a1, wherein the wiring socket and the limiting groove 3a1 are respectively located at two opposite sides, and correspondingly, a first wiring piece 221 and a limiting part 2a1 of the leakage protection module are respectively matched with the wiring socket and the limiting groove 3a 1.

The matching process of the leakage protection module and the breaker body is specifically as follows:

in the normal operation state of the circuit breaker body, the earth leakage protection module is kept in an original state, at this time, the tripping mechanism is in the original state, as shown in fig. 11 and 14, the first end of the movable iron core 114 is abutted against the first limit rib 1a4, the first end of the rotating member 12 is linked with the first end of the movable iron core 114 and abutted against one side of the first limit rib 1a4, the matching part 131 of the elastic indicator is in plug-in matching with the second linkage groove 1221 of the rotating member 12, and the button spring 135 stores energy; after the leakage fault occurs or the test loop is connected, the mutual inductor 21 detects a leakage current signal or an analog leakage current signal, the microcontroller outputs an action signal, the release 11 drives the first end of the movable iron core 114 to move to the bottom in the left direction in the drawing after being electrified and sucked to drive the rotating member 12 to rotate clockwise, at this time, as shown in fig. 12, the matching part 131 of the elastic indicating member is separated from the second linkage groove 1221, the indicating part 134 of the elastic indicating member pops up outside the first shell 1a to indicate the leakage fault, and meanwhile, the second end of the rotating member 12 drives the linkage shaft 32 to trip and power off the operating mechanism; after the release 11 is powered off, the movable iron core 114 moves to the right under the action of the counter force of the iron core spring to drive the rotating member 12 to rotate anticlockwise, at this time, as shown in fig. 13, the abutting part 1222 of the rotating member 12 abuts against the matching part 131 of the elastic indicator, and the second end of the rotating member 12 can be blocked on the reset path of the linkage shaft 32 while the rotating member 12 is limited to rotate, so that the breaker 3 is prevented from being switched on under the condition that the leakage fault is not removed or the test loop is not disconnected; after the leakage fault is removed or the test loop is disconnected, the elastic indicator overcomes the button spring 135, the matching part 131 of the elastic indicator slides into the second linkage groove 1221 along the abutting part 1222, and meanwhile, the iron core spring 115 drives the movable iron core 114 to reset continuously, so that the matching part 131 is in plug-in matching with the second linkage groove 1221 again, and the tripping mechanism resets.

An embodiment of a second leakage protection module is provided in connection with fig. 20-35, where the leakage protection module includes a housing, and a tripping mechanism and a testing mechanism assembled in the housing, where the housing is formed by vertically splicing a first housing 1a and a second housing 2a, so that the housing as a whole presents an approximately L-shaped structure, and one end of the first housing 1a is communicated with one end of the second housing 2a, and as in the first embodiment, preferably, the length of the side of the first housing 1a facing the second housing 2a is equal to the length of the circuit breaker 3, and the length of the side of the second housing 2a facing the first housing 1a is equal to the width of the circuit breaker 3.

In this embodiment, the whole of the first housing 1a and the second housing 2a is L-shaped, the first housing 1a includes a first base 1aa and a first cover 1ab that are mutually covered, and, as in the first embodiment, the first cover 1ab is a first connection side, preferably, the first base 1aa and the first cover 1ab form detachable connection with a clamping groove through a buckle, where one end of the first base 1aa forms a first protruding portion 1aa1 by bending along a direction deviating from the first cover 1ab, an end face of the first protruding portion 1aa1 is opened to form a first notch, an end face of the first base 1aa far away from the first notch is a module operation face, the second housing 2a includes a second base 2aa and a second cover 2ab that are mutually covered, a bottom wall of the second base 2aa opposite to the second cover 2ab is a second connection side, preferably, the second cover 2aa forms detachable connection with the second base 2aa through a buckle and a clamping groove, where the end face of the first base 1aa is opened to form a first notch, the end face of the first base 1aa is located at a lower side of the first notch, and the second base 2aa is located at a lower side of the first notch 4 a, and the side of the first base 2a side of the first base is located at a lower notch is formed at a lower side of the first notch, and the first notch is located at a lower side of the first notch 4 a side of the first notch is formed at a lower side of the first notch, and is located at a lower side of the first notch, and the first notch is located at a lower side of the second base 2aa is opposite side of the second base 2a side, and is opposite to the second notch is opposite a lower than a lower notch is opposite a lower side to the second base is opposite a lower cover a side.

In addition, in this embodiment, in fig. 24, one end of the first cover body 1ab extends downward to form a mating sidewall 1ab1, the mating sidewall 1ab1 extends beyond the end face of the first protruding portion 1aa1, correspondingly, a mating groove 2aa2 is provided on one side of the second protruding portion 2aa1 in a mating manner, the mating groove 2aa2 may be slidably mated with an edge of the mating sidewall 1ab1, and further, a buckle a3 and a slot a4 are provided on the edge of the mating groove 2aa2 and one end of the mating sidewall 1ab1 far from the first housing 1a in a mating manner, so as to facilitate improvement of mating stability. Of course, the edge of the first cover 1ab may be flush with the end surface of the first protruding portion 1aa1, and the engaging groove 2aa2 is not required to be provided on the side wall of the second protruding portion 2aa 1. In the present embodiment, screw holes and self-tapping screws fitted into the screw holes may be disposed in the first housing 1a and the second housing 2a to enhance the connection stability of the first housing 1a and the second housing 2 a.

As in the first embodiment, the same limiting portion 2a1 and the first connection port 2a2 are disposed on one side of the second housing 2a, where the limiting portion 2a1 and the first connection port 2a2 are disposed at intervals along the length direction of the second housing 2a, unlike in the first embodiment, as shown in fig. 24, the transformer 21 is located at one end of the second housing 2a, that is, the first protruding portion 1aa1 is abutted with the second protruding portion 2aa1 for accommodating the transformer 21, so that the thickness of the housing is the largest only at the position where the transformer 21 is assembled, and the remaining portions can be properly thinned or reduced according to the internal parts, and the plurality of second connection ports 2a3 are disposed around the transformer 21 and arranged in an array, that is, the plurality of second connection ports 2a3 are disposed on the side of the second base 2aa facing away from the second notch.

In addition, the central axis of the transformer 21 may be parallel to the longitudinal direction of the first housing 1a, that is, in the vertical direction (see the direction of fig. 24) parallel to the first housing 1a, and of course, the central axis of the transformer 21 may be perpendicular to both the longitudinal direction of the first housing 1a and the longitudinal direction of the second housing 2a, that is, the central axis of the transformer 21 may be perpendicular to both the vertical direction of the first housing 1a and the horizontal direction of the second housing 2a, or the transformer 21 may adjust the assembly direction according to the actual situation; in addition, as shown in fig. 24, in the present embodiment, the wiring assembly 22 is assembled in the second housing 2a to be matched with the transformer 21, and the wiring assembly 22 includes a connection wire 223 and a second wiring member 222, the first wiring member 221 is omitted, the first end of the connection wire 223 extends directly from the first wiring port 2a2 to the outside of the housing for connection with the wiring terminal of the circuit breaker 3, the first end of the connection wire 223 may be provided with a detachment prevention portion 2211 in a matched manner, the middle portion of the connection wire 223 is also coated with an insulating layer 223a, the middle portion of the connection wire 223 is arranged in parallel along the length direction of the second housing 2a, the plurality of connection wires are arranged in parallel and spaced in the second housing 2a, the second end of the connection wire 223 is welded with the second wiring member 222, and the second wiring member 22 also adopts a bus bar clip as in the first embodiment. Of course, the wiring assembly 22 of the present embodiment may be the same as the first embodiment, and includes a first wiring member 221, a connection wire 223, and a second wiring member 222.

As shown in fig. 25, a first assembly hole 1a5 and a second assembly hole 1a6 are arranged at one end of the first casing 1a far away from the second casing 2a, a plurality of ribs are arranged in a protruding manner at the middle part of the first casing 1a near the second casing 2a, the plurality of ribs are mutually matched at the middle part of the first casing 1a to form a release mounting groove 1a3, as shown in fig. 25, the release mounting groove 1a3 is a closed rectangular frame integrally, and the release mounting groove 1a3 corresponds to the second assembly hole 1a6; the middle part of the first shell 1a is convexly provided with a guide convex rib 1a20, the guide convex rib 1a20 is positioned between the release mounting groove 1a3 and the second assembly hole 1a6, two spaced grooves are formed in the middle part of the guide convex rib 1a20, the guide convex rib 1a20 is in a Chinese character 'shan' shape, the guide convex rib 1a20 and a guide groove 1321 arranged on the indicator 13 are mutually matched to form a guide structure, and the guide structure is used for providing a guide function for the indicator 13.

As shown in fig. 27 to 28, the indicator 13 of the trip mechanism, the trip 11, the rotating member 12, the energy storage member and the circuit board 15 are assembled in the first housing 1a, the transformer 21 of the trip mechanism is assembled in the second housing 2a, wherein the indicator 13 is slidingly assembled at one end of the first housing 1a far away from the second housing 2a, that is, the indicator 13 is assembled in the first assembly hole 1a5, the trip 11 is assembled in the trip mounting groove 1a3, the movable iron core 114 of the trip 11 is positioned at one side facing the second assembly hole 1a6, the circuit board 15 is stacked at one side of the test button 161 along the side wall of the first housing 1a, the circuit board 15 is preferably provided with a relief gap 152 at one side of the circuit board 15, the trip 11 and the transformer 21 are respectively connected with the circuit board 15, the rotating member 12 is rotationally assembled between the movable iron core 114 of the trip 11 and the indicator 13, the first end of the rotating member 12 is matched with the movable iron core 114, the rotating member 12 is positioned at the second relief gap 152 at the second end 12, and the rotating member 152 is positioned at the second relief gap 152 in the space provided by the rotating member 12.

In this embodiment, the indicator 13 is convexly provided with a mating portion 131, the second end of the rotating member 12 is provided with a second linkage groove 1221 and an abutting portion 1222, when no leakage fault occurs, the mating portion 131 is in plug-in limit with the second linkage groove 1221, so that the second end of the rotating member 12 and the indicator 13 form a snap fit, at this time, the energy storage member stores energy, after the leakage fault occurs, the movable iron core 114 drives the rotating member 12 to rotate, so that the mating portion 131 is separated from the second linkage groove 1221 (not shown in this embodiment, see fig. 12), and the energy storage member releases energy to enable the indicator 13 to pop out to indicate the leakage fault, wherein the mating portion 131 can be matched with the abutting portion 1222 (not shown in this embodiment, see fig. 13) to limit the rotating member 12 to prevent the circuit breaker 3 from closing when the leakage fault is not removed.

In combination with fig. 27, 33 and 34, a specific structure of the indicator 13 is provided, the indicator 13 includes an indicator body, in which the indicator body is integrally in a rectangular square column shape, one end of the indicator body is used as an indicator 134 to be matched and extend out of the first housing 1a, the middle part of the indicator body is slidably matched with the first housing 1a, a guide groove 1321 is provided in the middle part of the indicator body, three hollow bar-shaped grooves are provided in the middle part of the indicator 13 in the figure, one bar-shaped groove is used as a guide groove 1321 to be slidably matched with the guide rib 1a20, the matching of the guide rib 1a20 and the guide groove 1321 can limit the moving stroke of the indicator 13, the indicator 13 is ensured to slide along the length direction of the first housing 1a, the other end face of the indicator body is provided with a first spring fixing part 133, the first spring fixing part 133 can be in a groove structure or a boss structure, and the other end edge of the indicator body is laterally and outwardly protruded to form a hook-shaped matching part 131.

The specific structure of the rotating member 12 in this embodiment is provided in conjunction with fig. 27 to 29 and 32, the rotating member 12 includes a rotating connecting portion 123, a first rotating arm 121 and a second rotating arm 122, preferably, the rotating connecting portion 123 is integrally formed with the first rotating arm 121 and the second rotating arm 122, the rotating connecting portion 123 is cylindrical, a rotating shaft is provided in the middle of the rotating connecting portion 123 for rotating connection with the first housing 1a, the first rotating arm 121 is connected to one side of the rotating connecting portion 123 as a first end of the rotating member 12, the first rotating arm 121 is opposite to the first end of the moving core 114, and a second spring fixing portion 1213 is provided on the side of the first rotating arm 121 opposite to the moving core 114; the second rotating arm 122 is connected to the other side of the rotating connection portion 1213 as a second end of the rotating member 12, where the length of the second rotating arm 122 is greater than that of the first rotating arm 121, the second rotating arm 122 is integrally in a fan-shaped structure, a second linkage groove 1221 is formed in the middle of the second rotating arm 122, one side wall of the second linkage groove 1221 is used as an abutting portion 1222, in this embodiment, an included angle between the first rotating arm 121 and the second rotating arm 122 is an obtuse angle, the second linkage groove 1221 and the abutting portion 1222 are located on one side of the second rotating arm 122 facing the first rotating arm 121, and of course, an included angle between the first rotating arm 121 and the second rotating arm 122 may also be an acute angle.

Referring to fig. 31, a specific structure of a release 11 according to this embodiment is provided, the release 11 includes a yoke 111, a frame 112, a coil, a movable iron core 114 and a static iron core 113, where a pair of yokes 111 are respectively sleeved at two ends of the frame 112, the movable iron core 114 and the static iron core 113 are respectively assembled in the middle of the frame 112 between the pair of yokes 111, and the movable iron core 114 and the static iron core 113 are respectively located at two ends of the frame 112, through holes are respectively provided in the middle of the yokes 111 and the static iron core 113 adjacent to the static iron core 113, a first end of the movable iron core 114 passes through the through holes and extends out of the frame 112 to be matched with a first end of the rotating member 12, an iron core spring 115 is provided between the movable iron core 114 and the static iron core 113, and two ends of the iron core spring 115 are respectively abutted to the movable iron core 114 and the static iron core 113 for providing elastic restoring force for the movable iron core 114.

In this embodiment, the energy storage member may include only one energy storage spring (see fig. 27), and the same energy storage spring provides a restoring force for the rotating member 12 and the indicating member 13 respectively, and of course, the energy storage member may also be two energy storage springs that provide a restoring force for the indicating member 13 and the rotating member 12 respectively (see fig. 28), where the energy storage springs and the indicating member 13 cooperate to form an elastic indicating member slidingly assembled to the first housing 1 a.

In connection with fig. 27, a structure is provided in which the rotating member 12 and the indicating member 13 are provided with a restoring force by the same energy storage spring, wherein the energy storage spring connected between the rotating member 12 and the indicating member 13 is a first energy storage spring 141, two ends of the first energy storage spring 141 are respectively connected with the indicating member 13 and the rotating member 12, that is, one end of the first energy storage spring 141 is connected with the first spring fixing portion 133 of the indicating member 13, the other end of the first energy storage spring 141 is connected with the second spring fixing portion 1213 of the rotating member 12, when no leakage fault occurs, the first energy storage spring 141 is compressed to store energy, and after the leakage fault occurs, the release 11 pushes the first end of the rotating member 12 to enable the second end of the rotating member 12 to rotate clockwise, at this time, the matching portion 131 is separated from the second linkage groove 1221, the first energy storage spring 141 releases energy, so that the indicating portion 134 of the indicating member 13 pops up the first assembly hole 1a5 to indicate the leakage fault, and at the same time, the first energy storage spring 141 after releasing energy enables the indicating member 13 to remain in a separated state from the rotating member 12.

In combination with fig. 28, a structure is provided in which the rotating member 12 and the indicating member 13 are respectively provided with restoring force by different energy storage springs, as shown in fig. 28, the indicating member 13 is provided with restoring force by a second energy storage spring 142, the rotating member 12 is provided with elastic restoring force by a third energy storage spring 143, the second energy storage spring 142 is arranged in the middle of the indicating member 13, the second energy storage spring 142 and the indicating member 13 can cooperate to form an elastic indicating member, a guide slot 1321 preferably arranged in the middle of the indicating member body can be used as a containing slot of the second energy storage spring 142, a guide rib 1a20 cooperatively arranged in the first shell 1a can be used as a driving part to extend into the guide slot 1321 to be in butt joint with one end of the second energy storage spring 142, and the other end of the second energy storage spring 142 is in butt joint with the guide slot 1321; the third energy storage spring 143 is a torsion spring, the third energy storage spring 143 and the rotating member 12 are coaxially assembled in the first housing 1a, one end of the third energy storage spring 143 is abutted against the first housing 1a, the other end is abutted against the rotating member 12, preferably the other end of the third energy storage spring 143 is abutted against the rotating connecting portion 123 of the rotating member 12, so that the rotating member 12 always maintains a rotating moment.

As shown in fig. 27, a test button 161 and a test circuit are further disposed in the first housing 1a, wherein the test button 161 is slidably disposed at an end of the first housing 1a far from the second housing 2a, that is, the test button 161 is assembled in the second assembly hole 1a6, and typically, the test button 161 is disposed in parallel with the indicator 13, preferably, a foolproof structure is disposed between the test button 161 and the second assembly hole 1a6 to ensure that the test button 161 is properly assembled in the second assembly hole 1a6, the test button 161 is used to switch on or off a breakpoint of the test circuit, the test circuit passes through the transformer 21 and is connected with the circuit board 15, and after the test circuit is switched on, the transformer 21 obtains an analog leakage signal, an action signal is outputted to actuate the release 11.

In this embodiment, the test circuit includes a conductive post 151 and a third elastic conductive element 1623, where the conductive post 151 is connected to the circuit board 15, in fig. 27, the conductive post 151 is located at one end of the first housing 1a away from the second housing 2a, the third elastic conductive element 1623 is a torsion spring disposed in the first housing 1a, preferably, a third connecting shaft and a spring abutment 1a7 are protruding from an inner side wall of the first housing 1a, a spiral portion of the third elastic conductive element 1623 is sleeved on the third connecting shaft, a first end middle portion of the third elastic conductive element 1623 and the conductive post 151 are opposite to form a breakpoint of the test circuit, a first end of the third elastic conductive element 1623 is in plug-in fit with the test button 161 for providing an elastic restoring force for the test button 161, a second end middle portion of the third elastic conductive element 1623 is in contact with the spring abutment 1a7, in fig. 25 and 27, the spring abutment 1a7 is a boss disposed inside the first housing 1a, one side of which is an inclined slope, which is favorable for forming a break point with the second end of the third elastic conductive element middle portion 3, and the second end of the third elastic conductive element 1623 is plugged into the socket of the circuit board by the second end 16215. In addition, the test loop includes connecting wires that pass through the transformer 21.

In combination with fig. 35, a specific structure of a test button 161 is provided, the test button 161 includes a button body, the button body is a cylindrical body, one end of the button body is taken as a pressing portion 1614 to extend out of the first casing 1a, a limiting plate 1612 is arranged in the middle of the button body along a circumferential projection, the whole limiting plate 1612 is in a rectangular plate structure in the figure, one side of the limiting plate 1612 protrudes outwards to form a fool-proof portion 1613, the fool-proof portion 1613 forms an asymmetric structure for the button body, the fool-proof portion 1613 can be matched with a fool-proof slot in the second assembly hole 1a6 so as to ensure the uniqueness of the assembly position, a through slot 1611 is formed in the middle of the button body, the through slot 1611 is close to the other end of the button body, and the first end of the third elastic conductive element 1623 can be inserted into the through slot 1611, so that the third elastic conductive element 1623 provides an elastic reset force for the test button 161, and an elastic element matched with the test button 161 is omitted, so that the number of parts of the test mechanism is small, and the test mechanism has the characteristics of simple structure.

As for the embodiment of the plug-in circuit breaker 3 of the present embodiment, as in the above embodiment, the plug-in circuit breaker 3 includes a housing 3a and a circuit breaker body assembled in the housing 3a, a leakage protection module is disposed at one side of the housing 3a, a first casing 1a of the leakage protection module is disposed along a length direction of the circuit breaker 3, and a second casing 2a of the leakage protection module is disposed along a width direction of the circuit breaker 3, and preferably, the leakage protection module is formed in the same detachable connection with the circuit breaker 3 as in the first embodiment, that is, is in limit fit with the limit groove 3a1 through the limit part 2a 1; in this embodiment, the circuit breaker body is identical in structure to the first embodiment interrupt circuit breaker body.

as shown in fig. 27 to 29, in the normal operation state of the circuit breaker body, the earth leakage protection module is kept in the original state, at this time, the tripping mechanism is in the original state, the first end of the movable iron core 114 abuts against the first end of the rotating member 12, the matching portion 131 of the indicating member 13 of the rotating member 12 is in plug-in matching with the second linkage groove 1221 of the rotating member 12, and the energy storage member stores energy; after the leakage fault occurs or a test loop is connected, the transformer 21 detects a leakage current signal or an analog leakage current signal and then outputs an action signal, the release 11 drives the first end of the movable iron core 114 to move leftwards in fig. 27 and 28 after being electrified and sucked to drive the rotating member 12 to rotate clockwise, at the moment, the matching part 131 of the indicating member 13 is separated from the second linkage groove 1221, the indicating part 134 of the indicating member 13 pops up out of the first shell 1a to indicate the leakage fault, and meanwhile, the second end of the rotating member 12 drives the linkage shaft 32 to trip and cut off an operating mechanism; after the release 11 is powered off, the movable iron core 114 moves rightwards under the action of the counter force of the iron core spring to reset, at the moment, the rotating member 12 can rotate a certain angle, but the abutting part 1222 of the rotating member 12 abuts against the matching part 131 of the indicating member 13, the second end of the rotating member 12 can be blocked on the reset path of the linkage shaft 32 while the rotating member 12 is limited to rotate, and the breaker 3 is prevented from being switched on under the condition that the leakage fault is not removed or the test loop is not disconnected; after the leakage fault is removed or the test loop is disconnected, the indicator 13 is pressed to store energy for the energy storage element, the matching part 131 of the indicator 13 slides into the second linkage groove 1221 along the abutting part 1222 to be in plug-in matching again, and the tripping mechanism is reset.

It should be noted that, in the description of the present utility model, the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate an orientation or a positional relationship based on that shown in the drawings or an orientation or a positional relationship conventionally put in use, and are merely for convenience of description, and do not indicate that the apparatus or element to be referred to must have a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating relative importance.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.

Claims

1. The utility model provides a leakage protection module, includes the casing, be equipped with transformer (21), tripping device, testing mechanism and pass wiring subassembly (22) of transformer (21) in the casing, testing mechanism includes test circuit and test button (161), its characterized in that: the shell comprises a first shell (1 a) and a second shell (2 a), one end of the first shell (1 a) is a module operation surface provided with a second assembly hole (1 a 6), the other end is vertically connected with one end of the second shell (2 a) and is communicated with the other end,

The second assembly hole (1 a 6) is used for installing a test button (161),

a first connecting side surface is arranged between two ends of the first shell (1 a), the first connecting side surface faces the second shell (2 a), a linkage hole (1 a 1) is arranged on the first shell (1 a),

the second shell (2 a) comprises a first wiring side surface and a second wiring side surface which are parallel to the module operation surface, the first wiring side surface is provided with at least one first wiring port (2 a 2), the second wiring side surface is provided with at least one second wiring port (2 a 3) corresponding to the first wiring port (2 a 2),

the wiring assembly (22) comprises a first wiring piece (221), a connecting wire (223) and a second wiring piece (222) which are sequentially connected, wherein the first wiring piece (221) is correspondingly arranged with the first wiring port (2 a 2) and is used for being connected with a wiring terminal of the plug-in circuit breaker (3), and the second wiring piece (222) is correspondingly arranged with the second wiring port (2 a 3) and is used for being connected with an external conductive piece.

2. The earth leakage protection module of claim 1, wherein: the first wiring piece (221) is a plate-shaped conductor, the first wiring piece (221) penetrates through the first wiring opening (2 a 2) and stretches out of the second shell (2 a) to be used for being spliced with a wiring terminal of the plug-in circuit breaker (3), and the second wiring piece (222) is a bus bar clamp corresponding to the second wiring opening (2 a 3).

3. The earth leakage protection module of claim 2, wherein: the surface of the first wiring piece (221) is provided with a protruding anti-falling part (2211), and the anti-falling part (2211) is used for increasing the contact surface of the first wiring piece (221); the middle outer side of the connecting wire (223) is coated with an insulating layer (223 a), and the first end and the second end of the connecting wire (223) are welded with the first wiring piece (221) and the second wiring piece (222) respectively.

4. The earth leakage protection module of claim 2, wherein: one end of the second shell (2 a) connected with the first shell (1 a) is in the length direction of the second shell (2 a) to the other end, a plurality of first wiring ports (2 a 2) are distributed on the side face of the first wiring at intervals along the length direction of the second shell (2 a), and connecting wires (223) are distributed along the length direction of the second shell (2 a).

5. The earth leakage protection module of claim 4, wherein: the mutual inductor (21) is located in the middle of the second shell (2 a), and a plurality of second wiring ports (2 a 3) are distributed on the side face of the second wiring at intervals along the length direction of the second shell (2 a).

6. The earth leakage protection module of claim 4, wherein: the mutual inductor (21) is located at the communication position of the first shell (1 a) and the second shell (2 a), and a plurality of second wiring ports (2 a 3) are arranged around the mutual inductor (21) and are arranged on the side face of the second wiring in an array mode.

7. The earth leakage protection module of claim 4, wherein: the first shell (1 a) is fixedly connected with the shell (3 a) of the plug-in circuit breaker (3), and at least one group of limiting parts (2 a 1) and limiting grooves (3 a 1) which are in mutually limiting fit are arranged between the second shell (2 a) and the shell (3 a).

8. The leakage protection module of claim 7, wherein: the second casing (2 a) is provided with a plurality of spacing portions (2 a 1) which are arranged at intervals along the length direction of the second casing, each spacing portion (2 a 1) comprises a sliding table (2 a 11) protruding out of the casing, at least one side of each sliding table (2 a 11) is extended outwards in a protruding mode along the radial direction to form a clamping table (2 a 12), the casing (3 a) is provided with a plurality of spacing grooves (3 a 1) which are correspondingly matched with the spacing portions (2 a 1), the same end of each spacing groove (3 a 1) is outwards expanded to form a dismounting hole (3 a 11), and the outer diameter of each dismounting hole (3 a 11) is larger than or equal to the outer diameter of each clamping table (2 a 12), and the inner diameter of each spacing groove (3 a 1) is smaller than the outer diameter of each clamping table (2 a 12) and larger than or equal to the outer diameter of each sliding table (2 a 11).

9. The earth leakage protection module of claim 1, wherein: the first shell (1 a) is integrally cuboid, one end face perpendicular to the length direction of the first shell (1 a) is a module operation face, a notch is formed in the end face of the other end opposite to the module operation face and used for being in butt joint with a notch at one end of the second shell (2 a), and a side wall connected between the notch and the module operation face is a first connection side face.

10. The earth leakage protection module of claim 1, wherein: the module operation face is also provided with a first assembly hole (1 a 5), and the tripping mechanism comprises an elastic indicator for indicating faults, and the elastic indicator is slidably assembled in the first assembly hole (1 a 5).

11. The earth leakage protection module according to claim 1 or 10, characterized in that: the tripping mechanism comprises an elastic indicating piece, a tripping device (11), a circuit board (15) and a rotating piece (12), wherein the rotating piece (12) is rotationally assembled between the tripping device (11) and the circuit board (15) and is used for being connected with the plug-in circuit breaker (3) in a linkage manner, the tripping device (11) and a mutual inductor (21) are respectively connected with the circuit board (15), fault current is detected by the mutual inductor (21), and the tripping device (11) acts to drive the rotating piece (12) to enable the plug-in circuit breaker (3) to trip.

12. The leakage protection module of claim 11, wherein: the direction from one end of a module operation surface of the first shell (1 a) to the other end connected with the second shell (2 a) is the length direction of the first shell (1 a), the tripping mechanism is arranged along the length direction of the first shell (1 a), the elastic indication piece and the test button (161) are arranged at one end close to the module operation surface, the circuit board (15) is arranged at one end of the first shell (1 a) close to the second shell (2 a), the release (11) is arranged between the elastic indication piece and the circuit board (15), the rotating piece (12) is assembled between the movable iron core (114) and the elastic indication piece (13) of the release (11) in a rotating mode, and two ends of the rotating piece (12) are matched with the elastic indication piece and the movable iron core (114) respectively.

13. The earth leakage protection module of claim 1, wherein: an assembling structure is arranged between the first shell (1 a) and the second shell (2 a), and the first shell (1 a) and the second shell (2 a) are assembled and disassembled along the length direction of the first shell (1 a) or along the length direction of the second shell (2 a) by the assembling structure;

the assembly structure comprises a sliding groove (a 1) and a sliding part (a 2) which are matched with each other, and/or a buckle (a 3) and a clamping groove (a 4) which are matched with each other.

14. The earth leakage protection module according to claim 1 or 13, characterized in that: the tripping mechanism and the testing mechanism form a first module, the mutual inductor (21) and the wiring assembly (22) form a second module, the first module is assembled in the first shell (1 a), and the second module is assembled in the second shell (2 a).

15. The utility model provides a plug-in circuit breaker, includes shell (3 a), the both ends of shell (3 a) are wiring end and operating end respectively, in the shell (3 a) between wiring end and the operating end built-in circuit breaker body, its characterized in that: the leakage protection module according to any one of claims 1-14, wherein the leakage protection module is spliced with the outer shell (3 a) through the matching of the shell, the first shell (1 a) is arranged along the side wall parallel to the connecting end and the operating end, the first connecting side is attached to the side wall of the outer shell (3 a) of the adjacent breaker pole, the second shell (2 a) is attached to the connecting end of the outer shell (3 a) along the direction perpendicular to the first shell (1 a), the first wiring ports (2 a 2) of the first wiring side are in one-to-one correspondence with the wiring terminals of the connecting end, the second wiring side is opposite to the connecting end, and the first wiring piece (221) of the wiring assembly (22) is connected with the wiring terminal of the plug-in breaker (3).

16. The plug-in circuit breaker according to claim 15, characterized in that: the circuit breaker body includes at least one circuit breaker utmost point, first casing (1 a) and circuit breaker utmost point parallel arrangement, and every circuit breaker utmost point includes handle mechanism, binding post and operating device, handle mechanism, binding post correspond respectively and set up in the operating end of shell (3 a), the wiring end, handle mechanism and operating device linkage are connected, operating device includes universal driving shaft (32), test button (161) set up side by side with the handle mechanism of adjacent circuit breaker utmost point, and the universal driving shaft (32) of adjacent circuit breaker utmost point pass shell (3 a) lateral wall, first connection side's linkage hole (1 a 1) and trip mechanism cooperation.