CN220172036U - Leakage protection device and plug-in circuit breaker - Google Patents

Abstract

The utility model provides a leakage protection device and a plug-in circuit breaker, and relates to the technical field of circuit protection. The utility model provides a leakage protection device, which comprises a leakage execution module and a leakage detection module; the electric leakage executing module comprises a first shell, a tripping mechanism and a testing mechanism; the test mechanism comprises a test loop and a leakage test button; the electric leakage detection module comprises a second shell, a mutual inductor, a first wiring assembly and a second wiring assembly; the first wiring assembly comprises a first connecting wire penetrating through the transformer, a first wiring terminal connected with the first connecting wire and a first wire plug row, and the second wiring assembly comprises a second wiring terminal, a second connecting wire and a second wire plug row which are sequentially connected; the first plug wire row and the second plug wire row are used for being connected with an in-out wire connecting terminal of the circuit breaker body. The leakage protection device obtained by the design can be matched with a rear incoming line and a rear outgoing line breaker for use while meeting the leakage protection function.

Description

Leakage protection device and plug-in circuit breaker

Technical Field

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

Background

At present, the residual current circuit breaker is equipment which is necessary for ensuring electricity safety and carrying out circuit switching, and can protect electrical equipment and personal safety. When the leakage current reaches the rated value, the current signal is detected and amplified by the electronic circuit, the movable contact and the static contact are tripped by the tripping device, and then the tripped state is self-locked to keep the circuit safe.

However, current 1U post-line-in post-line outgoing circuit breakers have no matched leakage modules, which can lead to a lack of safety in the use of the circuit of such circuit breakers. Therefore, there is a need for an earth leakage protection device capable of cooperating with such a circuit breaker to solve the above-mentioned problems.

Disclosure of Invention

The utility model provides a leakage protection device and a plug-in circuit breaker, and aims to solve the problem that the existing 1U post-incoming-line post-outgoing-line circuit breaker provided in the prior art is not provided with a matched leakage module.

Embodiments of the present utility model are implemented as follows:

in one aspect of the embodiment of the utility model, a leakage protection device is provided, which comprises a leakage execution module and a leakage detection module; the electric leakage executing module comprises a first shell, a tripping mechanism and a testing mechanism, wherein the tripping mechanism and the testing mechanism are respectively arranged in the first shell; the test mechanism comprises a test loop and a leakage test button; the electric leakage detection module comprises a second shell, a mutual inductor arranged in the second shell, a first wiring assembly and a second wiring assembly; the first wiring assembly comprises a first connecting wire penetrating through the transformer, a first wiring terminal and a first wire plug row, wherein the first wiring terminal and the first wire plug row are respectively connected with the two opposite ends of the first connecting wire; the first plug wire row and the second plug wire row are respectively used for being connected with the wire inlet and outlet wiring terminals of the circuit breaker body.

Optionally, a circuit board is arranged in the first shell, the tripping mechanism comprises a tripper and a rotating piece in transmission connection with the tripper, one end of the rotating piece is positioned in the breaker body, the other end of the rotating piece is positioned in the first shell, and the rotating piece is in transmission connection with an operating mechanism of the breaker body; the tripping device and the mutual inductor are respectively and electrically connected with the circuit board, the mutual inductor is used for detecting circuit faults, and the tripping device is used for driving the rotating piece to rotate so as to trip the operating mechanism of the circuit breaker.

Optionally, the rotating piece comprises a body and a trip bar arranged on the body, and the trip bar is arranged on one side of the body, which is close to the breaker body; the release is driven and can enable the body to rotate, and the body drives the release rod to rotate, so that the release rod drives the breaker body to release.

Optionally, the body is provided with an action part, and the electric leakage executing module further comprises a reset part; the reset piece is driven to move towards the direction of the acting piece, and can drive the body to rotate so as to reset the tripping rod.

Optionally, a slot is formed in the acting piece, one end of the resetting piece is arranged in the slot, and the other end extends out of the first shell along the arrangement direction of the resetting piece.

Optionally, one side of the first casing near the circuit breaker is provided with a kidney-shaped hole, and the kidney-shaped hole is used for penetrating the trip bar and limiting the trip bar.

Optionally, a communication interface is arranged on the first shell; one surface of the first shell, which is away from the communication interface, is provided with an energizing indicator lamp and a leakage fault indicator lamp; the communication interface, the power-on indicator lamp and the leakage fault indicator lamp are respectively and electrically connected with the circuit board.

Optionally, the first casing still is equipped with the electric leakage value adjustable knob and the electric leakage delay release adjustable knob that are connected with the circuit board electricity respectively facing away from communication interface.

In another aspect of the embodiment of the present utility model, there is provided a plug-in circuit breaker including the above-mentioned earth leakage protection device, the plug-in circuit breaker including a housing and a circuit breaker body disposed in the housing, the housing having one end provided with a terminal and the other end provided with an operation end; the leakage detection module of the leakage protection device is attached to the wiring terminal, and the first plug wire row and the second plug wire row of the leakage detection module are in one-to-one corresponding plug connection with the inlet and outlet wiring terminal of the circuit breaker body; and the shell is spliced with a leakage execution module at one side adjacent to the wiring terminal and the operation terminal respectively.

Optionally, the breaker body further includes a locking member connected to a handle sleeve of the breaker body and a baffle connected to a housing of the breaker body, the locking member being capable of moving relative to the housing of the breaker body to limit a moving minimum closing stroke of the handle sleeve, the handle sleeve being used for controlling opening and closing of the breaker body;

the baffle is internally provided with an accommodating space, and part of the locking piece is positioned in the accommodating space; the locking piece is also provided with an elastic piece, and when the breaker body is in a brake-separating state, the elastic piece is abutted with the baffle through self elastic force so as to limit the locking piece in the baffle; when the breaker body is in a closing state, the locking piece can overcome the elastic force of the elastic piece to reset the locking piece.

The beneficial effects of the embodiment of the utility model include: the leakage protection device provided by the embodiment of the utility model comprises a leakage execution module and a leakage detection module; the electric leakage executing module comprises a first shell, a tripping mechanism and a testing mechanism, wherein the tripping mechanism and the testing mechanism are respectively arranged in the first shell; the test mechanism comprises a test loop and a leakage test button; the electric leakage detection module comprises a second shell, a mutual inductor arranged in the second shell, a first wiring assembly and a second wiring assembly; the first wiring assembly comprises a first connecting wire penetrating through the transformer, a first wiring terminal and a first wire plug row, wherein the first wiring terminal and the first wire plug row are respectively connected with the two opposite ends of the first connecting wire; the first plug wire row and the second plug wire row are respectively connected with the wire inlet and outlet wiring terminals of the circuit breaker body, and through the connection mode, the leakage protection module and the circuit breaker body can be detachably connected, so that the leakage protection device is convenient to disassemble and assemble with the circuit breaker body, and meanwhile, the leakage protection device can be matched with a back-in back-out circuit breaker. The leakage protection device that above-mentioned design obtained can be through the position setting of its first plug wire row and second plug wire row, when satisfying leakage protection function, also can cooperate the supporting use of wire outgoing type circuit breaker behind the inlet wire.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a plug-in circuit breaker according to an embodiment of the present utility model;

FIG. 2 is an enlarged view at A provided by an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a leakage protection device according to an embodiment of the present utility model;

FIG. 4 is an enlarged view of point B provided by an embodiment of the present utility model;

FIG. 5 is a second schematic diagram of a leakage protection device according to an embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a trip mechanism according to an embodiment of the present utility model;

FIG. 7 is a second schematic structural diagram of a trip mechanism according to an embodiment of the present utility model;

FIG. 8 is a third schematic structural view of a trip mechanism according to an embodiment of the present utility model;

fig. 9 is a schematic diagram of an internal structure of a leakage detection module according to an embodiment of the present utility model;

FIG. 10 is a schematic diagram illustrating a second internal structure of the leakage detection module according to the embodiment of the present utility model;

fig. 11 is a schematic structural diagram of a breaker body according to an embodiment of the present utility model.

Icon: 100-leakage protection device; 110-an electric leakage execution module; 111-a first housing; 1111-a communication interface; 1112-a leakage test button; 1113-kidney-shaped aperture; 1114-power on indicator lamp; 1115-leakage fault indicator; 1116-leakage value adjustable knob; 1117-leakage delay tripping adjustable knob; 112-a trip mechanism; 1121—a release; 113-a circuit board; 114-a rotating member; 1141-trip bar; 1142-an action member; 115-a reset element; 120-an electric leakage detection module; 121-a second housing; 1211-a transformer; 122-a first wiring assembly; 1221-first connecting wires; 1222-a first connection terminal; 1223-a first wire row; 123-a second wiring assembly; 1231-a second connecting wire; 1232-a second connection terminal; 1233-second wire row; 200-plug-in circuit breaker; 210-a housing; 211-an operation end; 212-a terminal; 220-a circuit breaker body; 221-locking member; 2211-an elastic sheet; 222-baffle.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some, but not all, embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

In the description of the present utility model, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1 and 3, in one aspect of the embodiment of the present utility model, a leakage protection device 100 is provided, including a leakage executing module 110 and a leakage detecting module 120; the leakage execution module 110 comprises a first shell 111, a tripping mechanism 112 and a testing mechanism, wherein the tripping mechanism 112 and the testing mechanism are respectively arranged in the first shell 111; the test mechanism includes a test loop and a leakage test button 1112; the leakage detection module 120 includes a second housing 121, a transformer 1211 disposed in the second housing 121, a first wiring assembly 122, and a second wiring assembly 123; the first wire connection assembly 122 includes a first connection wire 1221 penetrating through the transformer 1211, a first connection terminal 1222 and a first wire plug row 1223 connected to opposite ends of the first connection wire 1221, respectively, and the second wire connection assembly 123 includes a second connection terminal 1232, a second connection wire 1231 and a second wire plug row 1233 connected in sequence; the first wire row 1223 and the second wire row 1233 are respectively used for connection with the in-out wire terminals 212 of the circuit breaker body 220.

Specifically, the leakage protection device 100 has a leakage execution module 110 and a leakage detection module 120, where the leakage execution module 110 and the leakage detection module 120 are mutually matched and vertically arranged; the leakage executing module 110 has a first casing 111, a tripping mechanism 112 is arranged in the first casing 111, the leakage detecting module 120 of the testing mechanism has a second casing 121, a transformer 1211 is connected with the circuit board 113 and assembled in the casing, the transformer 1211 is used for acquiring a current signal and feeding back the current signal to a microcontroller connected on the circuit board 113, and the microcontroller judges whether fault current exists according to the current signal; when the leakage fault occurs, the microcontroller outputs a control signal to drive the tripping mechanism 112 to act; the testing mechanism comprises a testing loop, a circuit board 113, a mutual inductor 1211 and a leakage testing button 1112, wherein the testing loop and the mutual inductor 1211 are respectively connected with the circuit board 113, and break points of the testing loop can be connected or disconnected through the leakage testing button 1112, after the testing loop is connected, the mutual inductor 1211 detects the simulated leakage current, and a microcontroller of the circuit board 113 outputs an action signal to drive the tripping mechanism 112 to act, so that an operating mechanism inside the circuit breaker body 220 is disconnected.

As shown in fig. 9 and 10, the leakage detection module 120 has a first wiring assembly 122 and a second wiring assembly 123, where the first wiring assembly 122 includes a first wiring terminal 1222, a first connection wire 1221, and a first wire plug row 1223, and the first connection wire 1221 is disposed in the transformer 1211 in a penetrating manner, and has one end connected to the first wiring terminal 1222 and the other end connected to the first wire plug row 1223; the second connection assembly 123 includes a second connection terminal 1232, a second connection wire 1231, and a second wire plug row 1233, where opposite ends of the second connection wire 1231 are connected to the second connection terminal 1232 and the second wire plug row 1233, respectively. The first connection terminal 1222 and the second connection terminal 1232 are correspondingly arranged and are respectively used for connecting the wire inlet terminal power strip and the wire outlet terminal power strip; the first wire row 1223 and the second wire row 1233 are disposed in one-to-one correspondence with the first connection terminal 1222 and the second connection terminal 1232, and are used for connection with the in-out terminal of the circuit breaker body 220, as shown in fig. 5.

It should be noted that, first, in the embodiment of the present utility model, the leakage protection device 100 includes two mutually matched leakage detection modules 120 and a leakage execution module 110, and the structure of the two modules simplifies the complexity of the layout of the components in each module, and the size of each module can be adjusted according to the number and the volume of the internal components; and the first casing 111 and the second casing 121 adopt two mutually perpendicular planes to cooperate with the breaker body 220 together, so that the wiring assembly in the second casing 121 is more convenient to wire with the plug-in breaker 200, and the cooperation stability of the leakage protection device 100 and the breaker is improved. Meanwhile, the first shell 111 is detached from the second shell 121, so that the electric leakage protection module is convenient to splice.

Second, in the embodiment of the present utility model, the first wire plug row 1223 and the second wire plug row 1233 are respectively used for being connected with the in-out wire terminal 212 of the circuit breaker body 220, and the first wire plug row 1223 and the second wire plug row 1233 are located on the same surface of the leakage detection module 120, so that the leakage protection function can be satisfied, and the circuit breaker can also be matched with a post-incoming-line outgoing circuit breaker for use.

The leakage protection device 100 provided by the embodiment of the utility model comprises a leakage execution module 110 and a leakage detection module 120; the leakage execution module 110 includes a first housing 111, a trip mechanism 112 and a test mechanism respectively disposed in the first housing 111, so as to improve the functional diversity of the leakage protection device 100; the test mechanism includes a test loop and a leakage test button 1112; the leakage detection module 120 includes a second housing 121, a transformer 1211 disposed in the second housing 121, a first wiring assembly 122, and a second wiring assembly 123; the first wiring assembly 122 includes a first connection wire 1221 penetrating through the transformer 1211, a first connection terminal 1222 and a first wire plug row 1223 connected to opposite ends of the first connection wire 1221, and the second wiring assembly 123 includes a second connection terminal 1232, a second connection wire 1231 and a second wire plug row 1233 sequentially connected to form a good electrical circuit, so that the reliability of the circuit is improved, and the operation of the leakage protection device 100 is more reliable; the first plug wire row 1223 and the second plug wire row 1233 are respectively used for being connected with the wire inlet and outlet terminal 212 of the circuit breaker body 220, and in such a connection mode, the leakage protection module and the circuit breaker body 220 can be detachably connected, so that the leakage protection device 100 can be conveniently detached from the circuit breaker body 220, and meanwhile, the leakage protection device 100 can be matched with a back-in back-out circuit breaker. The leakage protection device 100 obtained by the design can be arranged at the positions of the first plug wire row 1223 and the second plug wire row 1233, and can be matched with a rear incoming line and a rear outgoing line circuit breaker for use while meeting the leakage protection function.

In one embodiment of the present utility model, as shown in fig. 6 and 7, a circuit board 113 is disposed in the first housing 111, the trip mechanism 112 includes a trip device 1121 and a rotating member 114 in driving connection with the trip device 1121, one end of the rotating member 114 is located in the breaker body 220 and the other end is located in the first housing 111, and the rotating member 114 is in driving connection with an operating mechanism of the breaker body 220; the trip 1121 and the transformer 1211 are electrically connected to the circuit board 113, respectively, the transformer 1211 is used for detecting a circuit fault, and the trip 1121 is used for driving the rotating member 114 to rotate so as to trip the operating mechanism of the circuit breaker body 220.

Specifically, the leakage execution module 110 includes a first housing 111, and a circuit board 113 and a tripping mechanism 112 are disposed in the first housing 111; trip mechanism 112 includes a trip unit 1121 and a rotating member 114, with rotating member 114 being in driving communication with trip unit 1121. The trip 1121 is provided with a movable iron core protruding near one end of the rotating member 114, and when a circuit fails, the movable iron core is magnetically acted inside the trip 1121 to extend toward the rotating member 114 and push the rotating member 114 to rotate, so that the operating mechanism of the circuit breaker body 220 is tripped. By such arrangement, the circuit can rapidly trip the operating mechanism in the breaker body 220 when a fault occurs, and the reliability of the earth leakage protection device 100 is improved.

Further, as shown in fig. 7, the rotating member 114 includes a body and a trip bar 1141 disposed on the body, wherein the trip bar 1141 is disposed on a side of the body close to the breaker body 220; the release 1121 is driven to rotate the body, which rotates the trip bar 1141, such that the trip bar 1141 trips the circuit breaker body 220.

Specifically, the rotating member 114 has a body and a trip bar 1141 disposed on the body. The body is rotatably disposed between the breaker body 220 and the first housing 111, and the trip bar 1141 is disposed on a side of the body near the breaker body 220. When the circuit fails, the movable iron core is acted by the magnetic field in the release 1121 to extend towards the direction of the rotating piece 114 and push the rotating piece 114 to rotate, and at the moment, the body drives the release rod 1141 to rotate, so that the release rod 1141 drives the operating mechanism in the circuit breaker to release. Through the setting of trip bar 1141, the process of tripping operation of tripping mechanism 112 on the operating mechanism in breaker body 220 can be made faster and more convenient.

In one embodiment of the present utility model, the body extends with a connecting piece, and when the movable iron core is exposed to the magnetic field in the release 1121 and extends toward the rotating member 114, the rotating member 114 can be driven to rotate by pushing the connecting piece. Of course, other arrangements besides the connecting piece may be used to enable the movable iron core to push the rotating member 114 to rotate, so long as the rotating member 114 can rotate rapidly, and the present utility model is not limited in any way.

Further, as shown in fig. 6, the body is provided with an action member 1142, and the leakage executing module 110 further includes a reset member 115; the reset element 115 is driven to move toward the acting element 1142, so as to drive the body to rotate, so as to reset the trip bar 1141.

Specifically, the body further extends with an action member 1142, and the leakage current executing module 110 further includes a reset member 115. The member is provided with a slot, one end of the reset member 115 is disposed in the slot, and the other end extends out of the first housing 111 along the disposition direction. When an electric leakage fault occurs, the microcontroller outputs a control signal to drive the tripping mechanism 112 to act, and at the moment, the movable iron core stretches out towards the direction of the rotating piece 114 under the action of the magnetic field in the tripping device 1121 so as to drive the rotating piece 114 to rotate; at this time, the reset member 115 is driven to eject the first housing 111; when the reset element 115 is pressed, the reset element 115 can be driven to move towards the direction of the acting element 1142, so as to drive the body to rotate, and reset the trip bar 1141. The trip mechanism 112 can be manually reset by the cooperation of the reset element 115 and the acting element 1142, so that the next detection and execution process can be facilitated, and the flexibility of the leakage protection device 100 is improved.

Illustratively, a kidney-shaped hole 1113 is formed in a side of the first housing 111 adjacent to the circuit breaker, and the kidney-shaped hole 1113 is used to penetrate the trip bar 1141 and limit the trip bar.

Specifically, as shown in fig. 8, a kidney-shaped hole 1113 is formed on a surface of the first housing 111, which is close to the circuit breaker, and the position of the kidney-shaped hole 1113 is adapted to the position of the trip rod 1141, and meanwhile, the trip rod 1141 is inserted into the kidney-shaped hole 1113. When the trip bar 1141 is shifted, the trip bar 1141 can be limited to a certain extent, and meanwhile, the trip bar 1141 can rapidly and conveniently perform the opening and closing operation on the operating mechanism in the breaker body 220.

In one implementation of the present utility model, as shown in fig. 3 and 4, a communication interface 1111 is further provided on the first housing 111, and a power-on indicator 1114 and an electric leakage fault indicator 1115 are provided on a side of the first housing 111 facing away from the communication interface 1111; the communication interface 1111, the energization indicator lamp 1114 and the leakage fault indicator lamp 1115 are electrically connected to the circuit board 113, respectively.

Specifically, the first housing 111 is provided with a communication interface 1111 electrically connected to the circuit board 113, and the communication interface 1111 can connect the leakage protection device 100 to an external communication device; by the provision of the communication interface 1111, the functional diversity of the earth leakage protection device 100 can be improved; the first housing 111 is provided with a power-on indicator 1114 and a leakage fault indicator 1115 on a surface facing away from the communication interface 1111, and the power-on indicator 1114 and the leakage fault indicator 1115 are electrically connected with the circuit board 113 respectively. When the breaker body 220 suffers from a leakage fault, the transformer 1211 acquires a current signal and feeds the current signal back to a microcontroller connected to the circuit board 113, and the microcontroller drives the leakage fault indicator 1115 to light up; when the breaker body 220 is closed, the energizing indicator 1114 will also light up. With such an arrangement, it is possible to effectively determine whether the circuit has failed and whether the breaker body 220 is in the open or closed state, improving the reliability of the leakage protection device 100.

In one implementation manner of the embodiment of the present utility model, as shown in fig. 3 and fig. 4, a leakage value adjustable knob 1116 and a leakage delay trip adjustable knob 1117, which are respectively electrically connected with the circuit board 113, are further disposed on a surface of the first housing 111 facing away from the communication interface 1111.

Specifically, the side of the first housing 111 facing away from the communication interface 1111 is further provided with a leakage value adjustable knob 1116 and a leakage delay tripping adjustable knob 1117 electrically connected with the circuit board 113, the threshold value of the leakage value can be adjusted by adjusting the leakage value and the leakage delay tripping adjustable knob 1117, and the delay tripping process can be reliably adjusted by adjusting the leakage delay tripping adjustable knob 1117, so that the flexibility and the adaptability of the leakage protection device 100 are improved.

In another aspect of the present embodiment, as shown in fig. 1, a plug-in circuit breaker 200 is provided, including the above-mentioned leakage protection device 100, where the plug-in circuit breaker 200 includes a housing 210 and a circuit breaker body 220 disposed in the housing 210, and the housing 210 has a terminal 212 and an operation end 211 that are disposed opposite to each other; the leakage detection module 120 of the leakage protection device 100 is attached to the wiring terminal 212, and the first plug wire row 1223 and the second plug wire row 1233 of the leakage detection module 120 are plugged with the in-out wiring terminal of the circuit breaker body 220 in a one-to-one correspondence manner; the leakage executing module 110 is spliced on one side of the housing 210 adjacent to the terminal 212 and the operation end 211, respectively.

Specifically, the utility model also provides the plug-in circuit breaker 200. Which includes the earth leakage protection device 100, the housing 210, and the circuit breaker body 220 described above. The circuit breaker body 220 is disposed in the housing 210, and two opposite ends of the housing 210 are provided with a terminal 212 and an operating end 211, the terminal 212 is used for being attached to a leakage detection end of the leakage protection module, and the leakage execution module 110 is spliced and disposed on one side of the housing 210 perpendicular to the terminal 212, as shown in fig. 11. The first wire plug row 1223 and the second wire plug row 1233 of the leakage detection module 120 are plugged in a one-to-one correspondence with the wire inlet and outlet terminals of the circuit breaker body 220, respectively.

The first plug wire row 1223 and the second plug wire row 1233 of the leakage protection device 100 are respectively connected with the wire inlet and outlet terminal 212 of the circuit breaker body 220, and the first plug wire row 1223 and the second plug wire row 1233 are located on the same surface of the leakage detection module 120, so that the leakage protection function is met, the matched use of the wire outlet circuit breaker after the wire inlet is matched, the matching stability of the leakage protection device 100 and the circuit breaker is improved, meanwhile, the leakage protection device 100 is provided with a communication interface 1111, and the functional diversity is further improved. The specific structure and the beneficial effects of the leakage protection device 100 are described in detail above, and are not repeated here.

In one implementation of the embodiment of the present utility model, the breaker body 220 further includes a locking member 221 connected to a handle sleeve of the breaker body 220 and a baffle 222 connected to the housing 210 of the breaker body 220, wherein the locking member 221 is capable of moving relative to the housing 210 of the breaker body 220 to limit a movement minimum closing stroke of the handle sleeve, and the handle sleeve is used for controlling an opening and closing brake of the breaker body 220;

the baffle 222 is provided with an accommodating space, and a part of the locking piece 221 is positioned in the accommodating space; the locking piece 221 is further provided with an elastic piece 2211, when the breaker body 220 is in a breaking state, the elastic piece 2211 is abutted with the baffle 222 through self elastic force so as to limit the locking piece 221 in the baffle 222; when the circuit breaker body 220 is in the closing state, the locking member 221 can overcome the elastic force of the elastic piece 2211 to reset the locking member 221.

Specifically, as shown in fig. 1 and 2, a handle sleeve of the breaker body 220 is disposed at the operation end 211 of the housing 210. The handle sleeve is connected with a locking piece 221, correspondingly, a baffle 222 is arranged on the shell 210, and the locking piece 221 can move relative to the shell 210 of the breaker body 220; when the breaker body 220 is in a breaking state, the locking piece 221 is clamped in the accommodating space in the baffle 222, and the elastic piece 2211 can be mutually abutted with the baffle 222 through self elastic force, so that the locking piece 221 and the baffle 222 are relatively fixed, and the locking piece 221 is limited. When the breaker body 220 processes the closing state, the locking member 221 is pushed to move, and part of the locking member 221 compresses the elastic sheet 2211 and resets the locking member 221. Through the arrangement of the elastic sheet 2211, the locking process of the locking piece 221 and the baffle 222 can be more reliable and stable.

The above description is only an example of the present utility model and is not intended to limit the scope of the present utility model, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The leakage protection device is characterized by comprising a leakage execution module (110) and a leakage detection module (120); the electric leakage executing module (110) comprises a first shell (111), a tripping mechanism (112) and a testing mechanism, wherein the tripping mechanism (112) and the testing mechanism are respectively arranged in the first shell (111); the test mechanism includes a test loop and a leakage test button (1112); the electric leakage detection module (120) comprises a second shell (121), a mutual inductor (1211) arranged in the second shell (121), a first wiring assembly (122) and a second wiring assembly (123); the first wiring assembly (122) comprises a first connecting wire (1221) penetrating through the transformer (1211), a first wiring terminal (1222) and a first wire plug row (1223) which are respectively connected with two opposite ends of the first connecting wire (1221), and the second wiring assembly (123) comprises a second wiring terminal (1232), a second connecting wire (1231) and a second wire plug row (1233) which are sequentially connected; the first plug wire row (1223) and the second plug wire row (1233) are respectively used for being connected with an in-out wire connecting terminal of the breaker body (220).

2. The leakage protection device according to claim 1, wherein a circuit board (113) is disposed in the first housing (111), the trip mechanism (112) includes a trip unit (1121) and a rotating member (114) in driving connection with the trip unit (1121), one end of the rotating member (114) is disposed in the circuit breaker body (220) and the other end is disposed in the first housing (111), and the rotating member (114) is in driving connection with an operating mechanism of the circuit breaker body (220); the release (1121) and the transformer (1211) are respectively and electrically connected with the circuit board (113), the transformer (1211) is used for detecting a circuit fault, and the release (1121) is used for driving the rotating piece (114) to rotate so as to release an operating mechanism of the circuit breaker body (220).

3. The earth leakage protection device of claim 2, wherein the rotating member (114) comprises a body and a trip bar (1141) disposed on the body, the trip bar (1141) being disposed on a side of the body proximate to the circuit breaker body (220); the release (1121) is driven to rotate the body, and the body drives the release rod (1141) to rotate, so that the release rod (1141) drives the circuit breaker body (220) to release.

4. A leakage protection device according to claim 3, wherein the body is provided with an action member (1142), and the leakage executing module (110) further comprises a reset member (115); the reset piece (115) is driven to move towards the direction of the acting piece (1142) and can drive the body to rotate so as to reset the tripping rod (1141).

5. The leakage protection device according to claim 4, wherein the action member (1142) is provided with a slot, one end of the reset member (115) is disposed in the slot, and the other end extends out of the first housing (111) along the direction in which the reset member is disposed.

6. A leakage protection device according to claim 3, wherein a kidney-shaped hole (1113) is provided on a surface of the first housing (111) close to the circuit breaker body (220), and the kidney-shaped hole (1113) is used for penetrating and limiting the trip bar (1141).

7. The leakage protection device according to claim 2, wherein the first housing (111) is further provided with a communication interface (1111), and a power-on indicator lamp (1114) and a leakage fault indicator lamp (1115) are further arranged on a surface of the first housing (111) facing away from the communication interface (1111); the communication interface (1111), the energizing indicator lamp (1114) and the leakage fault indicator lamp (1115) are respectively and electrically connected with the circuit board (113).

8. The leakage protection device according to claim 7, wherein a side of the first housing (111) facing away from the communication interface (1111) is further provided with a leakage value adjustable knob (1116) and a leakage delay trip adjustable knob (1117) electrically connected with the circuit board (113), respectively.

9. A plug-in circuit breaker, characterized by comprising a leakage protection device according to any one of claims 1-8, said plug-in circuit breaker comprising a housing (210) and a circuit breaker body (220) arranged in said housing (210), one end of said housing (210) being provided with a terminal (212) and the other end being provided with an operating end (211); the leakage detection module (120) of the leakage protection device (100) is attached to the wiring terminal, and the first plug wire row (1223) and the second plug wire row (1233) of the leakage detection module (120) are in one-to-one corresponding plug connection with the wire inlet and outlet terminals of the circuit breaker body (220); the leakage execution module (110) of the leakage protection device (100) is spliced on one side of the shell (210) adjacent to the wiring terminal (212) and the operation end (211) respectively.

10. The plug-in circuit breaker according to claim 9, wherein the circuit breaker body (220) further comprises a locking member (221) connected to a handle sleeve of the circuit breaker body (220) and a shutter (222) connected to a housing (210) of the circuit breaker body (220), the locking member (221) being movable relative to the housing (210) of the circuit breaker body (220) to limit a movement minimum closing stroke of the handle sleeve for controlling opening and closing of the circuit breaker body (220);

an accommodating space is formed in the baffle plate (222), and part of the locking piece (221) is positioned in the accommodating space; the locking piece (221) is further provided with an elastic piece (2211), and when the breaker body (220) is in a breaking state, the elastic piece (2211) is abutted with the baffle plate (222) through self elastic force so as to limit the locking piece (221) in the baffle plate (222); when the breaker body (220) is in a closing state, the locking piece (221) can overcome the elastic force of the elastic piece (2211) so as to reset the locking piece (221).