CN223140689U - A leakage circuit breaker and electrical system - Google Patents

Abstract

The present application relates to a leakage circuit breaker and an electrical system, and to the technical field of circuit breakers. The leakage circuit breaker includes a housing, an assembly frame, a mutual inductor and a wiring module. A housing is provided in the housing. The assembly frame is mounted on the housing, the assembly frame is at least partially in the housing, and the assembly frame is provided with an isolation plate. The mutual inductor is arranged in the housing, the mutual inductor is arranged on one side of the assembly frame, a detection through hole is provided on the mutual inductor, and the isolation plate extends into the detection through hole. The wiring module includes at least two conductive parts, each conductive part is respectively provided with a wiring part and a conducting part at both ends, the conductive part is partially in the detection through hole, and the isolation plate is inserted between the parts of the two conductive parts in the detection through hole. Among them, at least one conductive part is bent to form a U-shaped giving way structure. The leakage circuit breaker provided in the present application includes a structure that can simplify the assembly process of the entire device while reducing the volume of the device after assembly.

Description

Leakage circuit breaker and electrical system

Technical Field

The application relates to the technical field of circuit breakers, in particular to an electric leakage circuit breaker and an electric system.

Background

The leakage circuit breaker is a protection device commonly used in an electrical system, and can be used for breaking a switch when faults such as leakage, short circuit, overload and the like occur in a circuit system so as to realize protection of electric equipment.

In the prior art, the residual current circuit breaker is complicated in assembly process and low in assembly efficiency due to the fact that the number of structural parts is large in the production assembly process. Particularly to the assembly of mutual-inductor and the interior conductive structure of mutual-inductor, the electric leakage circuit breaker detects the electric current condition in the conductive structure and then judges circuit operating condition through setting up the mutual-inductor when using, and conductive structure needs part to wear to establish in the detection hole of mutual-inductor during the use. When the conductive structure is specifically assembled, the conductive structure is worn, and meanwhile, the two ends of the conductive structure are required to be connected and conducted with other parts.

However, when the structure is assembled, the conductive structure is more complex in order to adapt to the connection structure with the structures at two ends, so that the assembly body formed by the conductive structure and the transformer is complex in assembly process and large in volume after assembly, and further the whole space occupation of the residual current circuit breaker is large.

Disclosure of utility model

The application aims to provide an electric leakage breaker and an electric system, wherein the electric leakage breaker comprises a device which can simplify the whole assembly process of the device and reduce the volume of the device after the assembly is completed.

In order to achieve the above object, according to a first aspect of the present application, an embodiment of the present application provides an earth leakage breaker including a housing, a mounting bracket, a transformer, and a wiring module. The housing is provided with a receiving cavity therein. The assembly frame is installed in the casing, and the assembly frame is at least partly in holding the intracavity, and the assembly frame is provided with the division board. The mutual inductor sets up in holding the intracavity, and the mutual inductor sets up in one side of assembly jig, has seted up the detection through-hole on the mutual inductor, and the division board extends to in the detection through-hole. The wiring module comprises at least two conductive pieces, two ends of each conductive piece are respectively provided with a wiring part and a conducting part, the conductive piece parts are positioned in the detection through holes, and the isolation plate is inserted between the parts of the two conductive pieces positioned in the detection through holes. Wherein, at least one conductive piece is buckled and forms U-shaped abdication structure.

Based on the embodiment of the application, when the residual current circuit breaker is assembled, the axial direction of the detection through hole in the transformer faces the assembly frame at the assembly part of the transformer and the wiring module, and the transformer is assembled in the accommodating cavity and fixed in a clamping mode. And then one conductive piece provided with the abdication structure is firstly penetrated into the detection through hole along the axis direction of the detection through hole, and the arrangement of the abdication structure bent in a U shape can be used for abdication along the radial movement of the detection through hole after the transmission, so that more space is reserved for the transmission of the other conductive piece. And then the two conductive pieces are connected and conducted with other parts in the circuit through the wiring part and the conducting part after the two conductive pieces are penetrated and assembled. Meanwhile, through the isolation plate arranged on the assembly frame, the isolation plate can be inserted between the two conductive pieces in the detection through hole, so that the creepage distance between the two conductive pieces is prolonged, and the insulation effect is improved. Through the arrangement of the application, on one hand, the assembly of the mutual inductor and the wiring module part in the residual current circuit breaker is more convenient, and on the other hand, the arrangement of the abdication structure enables the whole volume of the assembly structure formed by the conductive piece and the mutual inductor to be smaller, so that the whole volume of the residual current circuit breaker is smaller, and the production and processing cost is reduced while the space occupation is reduced.

In some embodiments, one of the conductive members has a yielding structure thereon, and the yielding structure includes a first bending section, a second bending section and a third bending section, and the second bending section is connected between the first bending section and the third bending section. The second bending section is positioned in the detection through hole, and the extending direction of the second bending section is consistent with the axis direction of the detection through hole.

According to the embodiment of the application, the first bending section, the second bending section and the third bending section are matched to form the abdication structure with the approximate U-shaped structure, and the second bending section is positioned in the detection through hole during assembly, so that assembly and abdication are realized.

In some embodiments, two ends of the abdication structure are respectively connected with a first wiring part and a first conducting part, the first wiring part is connected with the first bending section, and the first conducting part is connected with the third bending section.

Based on the embodiment of the application, the arrangement of the first wiring part and the first conducting part enables the two ends of the yielding structure to be connected and conducted with other structures, so that the connection and conduction of the whole conducting circuit inside the leakage breaker are realized.

In some embodiments, the length dimension of the second bent section is greater than the thickness of the transformer.

According to the embodiment of the application, the length dimension of the second bending section is larger than the thickness of the transformer, so that the transformer can be positioned in the yielding structure during yielding, the assembly effect is improved, and the whole space occupation of an assembly body formed by assembly is reduced.

In some embodiments, the other conductive member includes a second connection portion and a second conduction portion, the second connection portion being connected to the second conduction portion. Wherein the second conducting part is positioned in the detection through hole, and the extending direction of the second conducting part is consistent with the axis direction of the detection through hole.

Based on the above embodiment of the present application, compared with the abdication structure formed on one conductive member, the second conductive portion is directly disposed on the other conductive member and inserted into the detection through hole. After the abdication structure is assembled and abducted, the second conducting part is directly inserted into the detection through hole along the axial direction of the detection through hole, so that the assembly process is simple and quick.

In some embodiments, the second bending section and the second conducting portion are disposed opposite to each other, and a direction in which the second bending section and the second conducting portion are opposite to each other corresponds to a thickness direction of the second bending section and the second conducting portion.

Based on the embodiment of the application, the second bending section is arranged into a strip-shaped plate structure, the second conducting part is also arranged into a strip-shaped plate structure, and the large faces of the second bending section and the second conducting part are arranged opposite to each other during assembly, so that the occupied space in the detection through hole after the second bending section and the second conducting part are assembled is reduced, and the whole volume after the assembly is reduced while the assembly is convenient.

In some embodiments, the isolation plate includes a first plate body and a second plate body, the first plate body is located between the second bending section and the second conducting portion, and the second plate body is connected to the first plate body and forms an L-shaped structure with the first plate body.

According to the embodiment of the application, the L-shaped structure is formed by arranging the first plate body and the second plate body, so that the creepage distance from the second bending section to the second conducting part is further prolonged, and the isolation effect of the isolation plate is further improved.

In some embodiments, the wiring module further comprises two wiring members including a fixing sleeve and a wiring post, the fixing sleeve being fixed in the accommodation chamber, the wiring post penetrating the housing and being connected to the fixing sleeve, the first wiring portion and the second wiring portion being connected to the fixing sleeve.

According to the embodiment of the application, the wiring piece formed by the fixing sleeve and the wiring post is connected with an external circuit, and the first wiring part and the second wiring part are respectively connected to the fixing sleeve to realize connection and conduction with the external circuit.

In some embodiments, the residual current circuit breaker further includes a circuit board disposed in the accommodating chamber, and the circuit board is perpendicular to the thickness direction of the case, and the transformer is electrically connected to the circuit board.

According to the embodiment of the application, the circuit board is arranged for data processing and control in the leakage circuit breaker, and the space occupation of the circuit board in the thickness direction of the leakage circuit breaker is reduced by arranging the circuit board perpendicular to the thickness direction of the shell, so that the size of the leakage circuit breaker in the thickness direction is reduced, the whole volume of the leakage circuit breaker is reduced, and the space occupation is reduced.

According to a second aspect of the present application, there is provided an electrical system including the electrical leakage breaker described above.

Based on the embodiment of the application, the electrical system provided by the application comprises the leakage breaker, and can perform switching-off protection when faults such as leakage occur in a circuit. Through the arrangement of the structure, the electric leakage circuit breaker is more convenient to assemble and overhaul, and meanwhile, the whole volume of the electric leakage circuit breaker can be reduced, and the occupation of space is reduced.

Additional features and advantages of the application will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the application, and are incorporated in and constitute a part of this specification, illustrate the application and together with the description serve to explain, without limitation, the application. In the drawings:

Fig. 1 is a schematic structural diagram of an earth leakage breaker according to an embodiment of the present application.

Fig. 2 is an internal plan view of the leakage breaker according to the embodiment of the present application.

Fig. 3 is a schematic structural diagram of a transformer and a wiring module in the leakage breaker according to the embodiment of the application.

Fig. 4 is a schematic structural diagram of a wiring module in the leakage breaker according to the embodiment of the present application.

Fig. 5 is a schematic structural diagram of a conductive member in the leakage breaker according to the embodiment of the present application.

Fig. 6 is a schematic structural diagram of an assembly frame and a wiring module in the leakage circuit breaker according to the embodiment of the application.

Fig. 7 is a schematic structural diagram of an assembly frame in an electrical leakage breaker according to an embodiment of the present application.

Fig. 8 is a schematic diagram of an internal structure of an electrical leakage breaker according to an embodiment of the present application.

Fig. 9 is a schematic diagram of an internal structure of the other side of the leakage breaker according to the embodiment of the present application.

Description of the reference numerals

1. The device comprises a shell, 11 parts of a containing cavity, 2 parts of an assembly frame, 21 parts of a separation plate, 211 parts of a first plate, 212 parts of a second plate, 3 parts of a mutual inductor, 31 parts of a detection through hole, 4 parts of a wiring module, 41 parts of a conducting piece, 42 parts of a yielding structure, 421 parts of a first bending section, 422 parts of a second bending section, 423 parts of a third bending section, 43 parts of a first wiring part, 44 parts of a first conducting part, 45 parts of a second wiring part, 46 parts of a second conducting part, 47 parts of a wiring piece, 471 parts of a fixing sleeve, 472 parts of a wiring terminal, 5 parts of a circuit board, 6 parts of a tripping structure, 7 parts of a contact structure.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

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

Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that like reference numerals and letters refer to 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 description of the present application, it should be noted that, unless otherwise indicated, the terms "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 place when the product of the application is used, and are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, or may be directly connected, or may be indirectly connected through an intermediate medium, or may be in communication with the inside of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the prior art, the residual current circuit breaker is complicated in assembly process and low in assembly efficiency due to the fact that the number of structural parts is large in the production assembly process. Particularly to the assembly of mutual-inductor and the interior conductive structure of mutual-inductor, the electric leakage circuit breaker detects the electric current condition in the conductive structure and then judges circuit operating condition through setting up the mutual-inductor when using, and conductive structure needs part to wear to establish in the detection hole of mutual-inductor during the use. When the conductive structure is specifically assembled, the conductive structure is worn, and meanwhile, the two ends of the conductive structure are required to be connected and conducted with other parts.

However, when the structure is assembled, the conductive structure is more complex in order to adapt to the connection structure with the structures at two ends, so that the assembly body formed by the conductive structure and the transformer is complex in assembly process and large in volume after assembly, and further the whole space occupation of the residual current circuit breaker is large.

Specifically, since the connection structures at the two ends of the conductive structure are complicated and have large volumes, one assembly mode is to enlarge the size of the detection hole in the transformer, but the size of the transformer is also increased by the mode, so that the overall structure of the leakage circuit breaker is increased. In another assembly mode, the length of the conductive structure can be lengthened, and meanwhile, a part for penetrating the transformer is arranged in the middle part of the conductive structure, and the whole volume of the leakage circuit breaker is increased in the same way.

In order to solve the above-described problems in the prior art, according to a first aspect of the present application, reference is made to fig. 1 to 7. The embodiment of the application provides an electric leakage breaker which comprises a shell 1, an assembly frame 2, a transformer 3 and a wiring module 4. A housing chamber 11 is provided in the housing 1. The mounting bracket 2 is mounted to the housing 1, the mounting bracket 2 being at least partially within the receiving cavity 11, the mounting bracket 2 being provided with a spacer 21. The mutual inductor 3 sets up in holding the intracavity 11, and the mutual inductor 3 sets up in one side of assembly jig 2, has seted up on the mutual inductor 3 and has detected the through-hole 31, and the division board 21 extends to in the detection through-hole 31. The wiring module 4 includes at least two conductive members 41, two ends of each conductive member 41 are respectively provided with a wiring portion and a conducting portion, a portion of each conductive member 41 is located in the detection through hole 31, and the isolation plate 21 is inserted between portions of the two conductive members 41 located in the detection through hole 31. Wherein, at least one conductive element 41 is bent and forms a U-shaped yielding structure 42.

Based on the above-described embodiment of the present application, when the earth leakage breaker is assembled, in the assembly portion of the transformer 3 and the wiring module 4, the axial direction of the detection through hole 31 in the transformer 3 is oriented toward the assembly frame 2, and the transformer 3 is assembled in the accommodating chamber 11 and fixed by means of clamping or the like. Then, one conductive piece 41 provided with the abdication structure 42 is firstly penetrated into the detection through hole 31 along the axial direction of the detection through hole 31, and the arrangement of the abdication structure 42 bent in a U shape can be abducted along the radial movement of the detection through hole 31 after penetrating, so that more space is reserved for penetrating other conductive pieces 41. And then the two conductive members 41 are connected and conducted with other components in the circuit through the wiring part and the conducting part after the assembly is completed.

Meanwhile, through the isolation plate 21 arranged on the assembly frame 2, the isolation plate 21 can be inserted between the two conductive pieces 41 in the detection through hole 31, so that the creepage distance between the two conductive pieces 41 is prolonged, and the insulation effect is improved.

Through the arrangement of the application, on one hand, the assembly of the mutual inductor 3 and the wiring module 4 in the residual current circuit breaker is more convenient, and on the other hand, the arrangement of the abdication structure 42 enables the whole volume of the assembly structure formed by the conductive piece 41 and the mutual inductor 3 to be smaller, so that the whole volume of the residual current circuit breaker is smaller, and the production and processing cost is reduced while the space occupation is reduced.

Specifically, when the earth leakage breaker is used, the conductive member 41 is connected to the circuit and partially located in the detection through hole 31, and the transformer 3 detects the passing condition of the current in the circuit by means of induced electricity, so as to determine the overall working state of the circuit.

In the present application, by the arrangement of the above-described structure, on the one hand, the size of the detection through hole 31 in the transformer 3 can be set smaller, so that the overall size of the transformer 3 is set smaller, thereby reducing the overall volume of the earth leakage breaker. On the other hand, through the setting of the above-mentioned structure 42 of stepping down, one of the conductive members 41 is stepping down through the structure 42 of stepping down after wearing to establish in the detection through hole 31 to leave more space for other conductive members 41, so that other conductive members 41 wear to establish the assembly, also leave more space for the wiring and the reason line process of conductive member 41 simultaneously.

In the present application, the relief structure 42 on the conductive element 41 is configured in a U shape, and any suitable manner may be selected for the specific configuration of the relief structure 42.

Referring to fig. 4 and 5, in one exemplary embodiment provided by the present application, the relief structure 42 may include a first bending section 421, a second bending section 422, and a third bending section 423, the second bending section 422 being connected between the first bending section 421 and the third bending section 423. The second bending section 422 is located in the detection through hole 31, and the extending direction of the second bending section 422 is consistent with the axial direction of the detection through hole 31.

According to the above embodiment of the present application, the first bending section 421, the second bending section 422 and the third bending section 423 cooperate to form the abdication structure 42 with an approximately U-shaped structure, and the second bending section 422 is located in the detection through hole 31 during assembly, so as to realize assembly and abdication.

Specifically, in the present application, the first bending section 421, the second bending section 422, and the third bending section 423 may be integrally provided, and integrally formed by punching or the like. By integrally machining and forming the yielding structure 42, on one hand, the internal impedance of the yielding structure 42 can be reduced, and on the other hand, the processing can be facilitated and simplified.

Further, in the present application, the specific structure and dimensions of the first, second and third bending sections 421, 422 and 423 may be selected to any suitable arrangement. In an exemplary embodiment provided by the present application, the first bending section 421, the second bending section 422, and the third bending section 423 are each provided in a plate-like structure of an elongated shape, and at the same time, the length dimension of the second bending section 422 is greater than the thickness of the transformer 3.

According to the embodiment of the application, the length dimension of the second bending section 422 is larger than the thickness of the transformer 3, so that the transformer 3 can be positioned in the yielding structure 42 during yielding, the assembly effect is improved, and the whole space occupation of the assembly formed by assembly is reduced. And rectangular shaped plate column structure's setting can reduce first section 421, second section 422 and the holistic space occupation of third section 423 of bending on the one hand, when being connected with wiring portion and switching on the portion simultaneously, can also remain great area of contact to guarantee sufficient overflow area, guarantee stronger overflow ability.

Meanwhile, when the length dimension of the second bending section 422 is specifically set, the length dimension of the second bending section 422 is ensured to be larger than the thickness dimension of the transformer 3, meanwhile, the dimension of the second bending section 422 cannot be excessively large, and when the dimension of the second bending section 422 is excessively large, the space occupation of the whole abdication structure 42 in the axial direction along the detection through hole 31 is relatively large, so that the whole dimension of the leakage circuit breaker is affected.

Further, referring to fig. 5, in some embodiments of the present application, the two ends of the yielding structure 42 may be respectively connected with a first connection portion 43 and a first conduction portion 44, where the first connection portion 43 is connected to the first bending section 421, and the first conduction portion 44 is connected to the third bending section 423.

Based on the above embodiment of the present application, the first connection portion 43 and the first conduction portion 44 are configured so that the two ends of the yielding structure 42 can be connected and conducted with other structures, thereby realizing connection and conduction of the overall conductive circuit inside the leakage breaker.

Specifically, one end of the relief structure 42 is connected to the first wiring portion 43, then the first wiring portion 43 is connected to an external circuit through a connection structure, and the other end of the relief structure 42 is connected to the first conducting portion 44, then the first conducting portion 44 is connected to a magnetic system coil or a static contact in the leakage breaker, so that the circulation conduction of the whole conductive line is realized.

On the basis of the above arrangement, that is, after the relief structure 42 is provided on one of the conductive members 41, referring to fig. 5, the other conductive members 41 may include a second connection portion 45 and a second conductive portion 46, and the second connection portion 45 is connected to the second conductive portion 46. For example, when two conductive members 41 are provided, one of the conductive members 41 is provided with the relief structure 42, and the other conductive member 41 is directly provided in a structure in which the second wiring portion 45 is connected to the second conduction portion 46. Wherein, the second conduction part 46 is partially positioned in the detection through hole 31, and the extending direction of the second conduction part 46 is consistent with the axial direction of the detection through hole 31.

According to the above embodiment of the present application, compared with the relief structure 42 formed on one conductive member 41, the second conductive portion 46 is directly disposed on the other conductive member 41 and inserted into the detection through hole 31. After the abdication structure 42 is assembled and abducted, the second conducting part 46 is directly inserted into the detection through hole 31 along the axial direction of the detection through hole 31, so that the assembly process is simple and quick.

Specifically, the conductive member 41 directly includes the second connection portion 45 and the second conductive portion 46, and at this time, the second conductive portion 46 is inserted into the detection through hole 31, and due to the arrangement of the abdication structure 42 on the other conductive member 41, a larger space is still left in the detection through hole 31 at this time, so that the second conductive portion 46 is inserted.

Further, in the present application, the second wiring portion 45 and the second conduction portion 46 may be provided in a long strip-like plate-like structure as well. Meanwhile, when the conductive members 41 are provided in two, after the second conductive portions 46 are penetrated, the second bending sections 422 and the second conductive portions 46 are disposed opposite to each other, and the opposite directions of the second bending sections 422 and the second conductive portions 46 correspond to the thickness directions of the two.

Based on the above embodiment of the present application, the second bending section 422 is configured as a strip-shaped plate structure, and the second conducting portion 46 is also configured as a strip-shaped plate structure, and the large faces of the second bending section 422 and the second conducting portion 46 are disposed opposite to each other during assembly, so that the space occupation in the detection through hole 31 after the assembly of the two is reduced, and the whole volume after the assembly is reduced while the assembly is convenient.

In addition, in other embodiments of the present application, when two conductive members 41 are provided, the two conductive members 41 may be simultaneously provided with the abdication structures 42, which may be specifically provided according to the specific structures of the transformer 3 and the wiring module 4, which is not specifically limited in the present application.

In still other embodiments of the present application, when three, four or more conductive members 41 are provided, at least one conductive member 41 may be provided with a relief structure 42, or a plurality of conductive members 41 may be provided with a relief structure 42 at the same time.

In the present application, the specific structure of the partition plate 21 may be selected from any suitable arrangement.

Referring to fig. 6 and 7, in an exemplary embodiment provided by the present application, when the conductive member 41 is provided in two, the separation plate 21 may include a first plate body 211 and a second plate body 212, the first plate body 211 being positioned between the second bent section 422 and the second conductive part 46, the second plate body 212 being connected to the first plate body 211 and constituting an L-shaped structure with the first plate body 211.

According to the embodiment of the application, the first plate 211 and the second plate 212 are provided to form an L-shaped structure, so that the creepage distance from the second bending section 422 to the second conducting part 46 is further prolonged, and the isolation effect of the isolation plate 21 is further improved.

Further, the first plate 211 and the second plate 212 cooperate to form an L-shaped structure, so that on one hand, the creepage distance from the second bending section 422 to the second conducting part 46 can be further prolonged, and on the other hand, the effect of supporting and positioning the conductive part 41 can be achieved to a certain extent during assembly.

In still other embodiments of the present application, the first plate 211 may be directly connected to the middle of the second plate 212, so that the first plate 211 and the second plate 212 together form a T-shaped structure, further prolonging the creepage distance between the second bending section 422 and the second conducting portion 46, and further improving the insulation protection effect.

In addition, when the conductive members 41 are provided in three, four or up to a plurality of the conductive members, the structure of the isolation plate 21 may be correspondingly provided at this time, so that the isolation plate 21 can isolate the portions of the respective conductive members 41 provided in the detection through holes 31, to lengthen the creepage distance between the adjacent two conductive members 41, and to enhance the insulation isolation effect.

Referring to fig. 4 to 6, in some embodiments of the present application, when the conductive member 41 is provided with two, the wire module 4 may further include two wire members 47, the wire members 47 including a fixing sleeve 471 and a terminal post 472, the fixing sleeve 471 being fixed in the receiving cavity 11, the terminal post 472 penetrating the housing 1 and being connected to the fixing sleeve 471, the first and second wire parts 43 and 45 being connected to the fixing sleeve 471.

According to the above-described embodiment of the present application, the first and second wire connection parts 43 and 45 are connected to the fixing sleeve 471, respectively, by connecting the wire connection 47 composed of the fixing sleeve 471 and the wire connection post 472 together with an external circuit, thereby achieving connection conduction with the external circuit.

Specifically, in the present application, the binding post 472 may be further configured as a binding screw, and the housing 1 may be provided with a through hole so that the binding screw passes through the through hole to be in threaded connection with the fixing sleeve 471, and after the first binding portion 43 and the second binding portion 45 are connected into the fixing sleeve 471, only the binding screw needs to be screwed down to enable the binding screw to abut against and fix the first binding portion 43 and the second binding portion 45, so that connection conduction between the binding member 47 and the conductive member 41 can be achieved while fixation is achieved.

Meanwhile, a through hole may be provided on the housing 1 at a position facing the fixing sleeve 471, so that an external circuit wire is connected to the fixing sleeve 471.

Further, in the present application, the number of the wire members 47 needs to be correspondingly set according to the number of the conductive members 41.

In summary, based on the above-mentioned arrangement of the present application, the assembly process of the transformer 3 and the connection module 4 in the leakage breaker provided by the present application includes that the transformer 3 is assembled in the housing 1 first, and meanwhile, a clamping structure may be disposed in the housing 1 to limit and fix the transformer 3. When two conductive members 41 are provided, first, one conductive member 41 provided with the abdication structure 42 is inserted into the detection through hole 31, and then the conductive member 41 is moved in the radial direction of the detection through hole 31 to abdy, so that a larger space is reserved in the detection through hole 31.

Then, another conductive member 41 is inserted, and when the other conductive member 41 is formed by directly connecting the second connection portion 45 and the second conduction portion 46, the second conduction portion 46 is directly inserted into the detection through hole 31. After the two conductive members 41 are assembled, the first conductive portion 44 and the second conductive portion 46 may be connected and conducted with the structure such as the magnetic system coil or the stationary contact by direct contact, and the first wiring portion 43 and the second wiring portion 45 at the other end may be connected and conducted with the wiring member 47 by tightening the wiring bolt or the like.

Subsequently, the assembly frame 2 is connected with the housing 1, and the isolation plate 21 is inserted into the detection through hole 31 and positioned between the second bending section 422 and the second conducting part 46 when the assembly frame 2 is connected, so that the creepage distance between the two is prolonged for insulation protection.

In conclusion, through the arrangement of the structure, the assembly process of the transformer 3 and the wiring module 4 in the residual current circuit breaker is simpler and quicker, and meanwhile, the whole volume of the assembled body formed after assembly is smaller, so that the whole volume of the residual current circuit breaker is reduced, the occupied space is reduced, and the cost is reduced.

In some embodiments of the present application, after the mounting frame 2 is mounted on the housing 1, in order to further strengthen the connection between the mounting frame 2 and the housing 1, the mounting frame 2 and the housing 1 may be further fixed by riveting or screwing. For example, a long screw is provided while penetrating the jig 2 and the pair of cases 1 to be fixed therebetween.

In addition, it should be noted that the earth leakage breaker in the present application is not limited to the above components, and referring to fig. 8 and 9, the earth leakage breaker may further include a plurality of structures such as a trip structure 6, a contact structure 7, and the like, and the kind and connection manner of the specific structures may be selected in any suitable arrangement manner according to the use requirement, and the present application is not particularly limited herein since it does not involve improvement of the above structures.

Referring to fig. 8, in some embodiments of the present application, the earth leakage breaker may further include a circuit board 5, the circuit board 5 being disposed in the receiving chamber 11, and the circuit board 5 being perpendicular to the thickness direction of the case 1, the transformer 3 being electrically connected to the circuit board 5.

According to the embodiment of the application, the circuit board 5 is arranged for data processing and control in the leakage breaker, and the space occupation of the circuit board 5 in the thickness direction of the leakage breaker is reduced by arranging the circuit board 5 perpendicular to the thickness direction of the shell 1, so that the size of the leakage breaker in the thickness direction is reduced, the whole volume of the leakage breaker is reduced, and the space occupation is reduced.

On the basis of the technical scheme, according to a second aspect of the application, an electrical system is provided, and the electrical system comprises the electric leakage breaker.

Based on the embodiment of the application, the electrical system provided by the application comprises the leakage breaker, and can perform switching-off protection when faults such as leakage occur in a circuit. Through the arrangement of the structure, the electric leakage circuit breaker is more convenient to assemble and overhaul, and meanwhile, the whole volume of the electric leakage circuit breaker can be reduced, and the occupation of space is reduced.

The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the scope of the technical concept of the present application, and all the simple modifications belong to the protection scope of the present application.

In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.

Moreover, any combination of the various embodiments of the application can be made without departing from the spirit of the application, which should also be considered as disclosed herein.

Claims (10)

1. An earth leakage breaker, characterized in that the earth leakage breaker comprises:

A housing provided with a receiving chamber;

The assembly frame is arranged on the shell and at least partially positioned in the accommodating cavity, and the assembly frame is provided with a separation plate;

The mutual inductor is arranged in the accommodating cavity, the mutual inductor is arranged on one side of the assembly frame, a detection through hole is formed in the mutual inductor, and the isolation plate extends into the detection through hole;

The wiring module comprises at least two conductive pieces, wherein wiring parts and conducting parts are respectively arranged at two ends of each conductive piece, the conductive pieces are partially positioned in the detection through holes, and the isolation plate is inserted between the two conductive pieces positioned in the detection through holes;

At least one conductive piece is bent and forms a U-shaped abdication structure.

2. The residual-current circuit breaker according to claim 1, wherein one of the conductive members has the relief structure thereon, the relief structure including a first bending section, a second bending section, and a third bending section, the second bending section being connected between the first bending section and the third bending section;

the second bending section is located in the detection through hole, and the extending direction of the second bending section is consistent with the axial direction of the detection through hole.

3. The residual-current circuit breaker according to claim 2, wherein the two ends of the yielding structure are respectively connected with a first wiring portion and a first conducting portion, the first wiring portion is connected to the first bending section, and the first conducting portion is connected to the third bending section.

4. The electrical leakage breaker according to claim 2, wherein a length dimension of the second bent section is greater than a thickness of the transformer.

5. A leakage breaker according to claim 3, wherein the other conductive member includes a second wiring portion and a second conduction portion, the second wiring portion being connected to the second conduction portion;

wherein the second conduction part is positioned in the detection through hole, and the extending direction of the second conduction part is consistent with the axial direction of the detection through hole.

6. The electrical leakage breaker according to claim 5, wherein the second bending section and the second conductive portion are disposed opposite to each other, and a direction in which the second bending section and the second conductive portion are opposite to each other corresponds to a thickness direction of both.

7. A leakage breaker according to any one of claims 1-6, wherein the separator comprises a first plate body and a second plate body, the first plate body being located between the second bent section and the second conducting portion, the second plate body being connected to the first plate body and constituting an L-shaped structure with the first plate body.

8. The electrical leakage breaker of claim 5, wherein the wiring module further comprises two wiring members including a fixing sleeve and a wiring post, the fixing sleeve being fixed in the receiving chamber, the wiring post penetrating the housing and being connected to the fixing sleeve, the first and second wiring portions being connected to the fixing sleeve.

9. The electrical leakage breaker according to claim 1, further comprising a circuit board disposed in the accommodation chamber, and perpendicular to the case thickness direction, the transformer being electrically connected to the circuit board.

10. An electrical system, characterized in that it comprises an earth leakage breaker according to any one of claims 1-9.