Conductive module and residual current operated circuit breaker

Abstract

The conductive module comprises a mutual inductor, a plurality of separated spaces are arranged in a mutual inductor through hole, the conductive module further comprises an insulation support, the mutual inductor and the conductive structure of the multi-pole conductive system are installed on the insulation support, a plurality of insulation spaces are arranged on the insulation support and comprise at least one inner insulation space arranged in the insulation support, and the inner insulation space is arranged in the insulation support. The conductive structure of at least one conductive system is installed in the inner insulation space, one end extends out of the inner insulation space, and the other end passes through the communication hole of the insulation support and the separation space in sequence. A residual current operated circuit breaker comprises a conductive module. According to the conductive module and the residual current operated circuit breaker, the mutual inductor and the conductive structure of each pole are integrated on the insulating support to form the conductive module, the modular design facilitates automatic assembly, the insulating support plays an insulating role, and the inner insulating space is arranged in the insulating support, so that the insulating performance and reliability of a conductive system are improved; and the insulating bracket also plays a mounting and supporting role.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical appliances, specifically to a conductive module and a residual current operated circuit breaker. Background Technology

[0002] Residual current operated circuit breakers require the installation of zero-sequence current transformers, and the conductive structures of each pole's conductive system must pass through the transformer. When an electric shock or leakage fault occurs in the circuit, the secondary side of the transformer outputs a zero-sequence current, causing the equipment protection devices on the connected secondary lines to operate and protect the circuit breaker. However, in existing residual current operated circuit breakers, the transformer and the conductive structures of each pole's conductive system are mostly installed separately, making automated assembly difficult. Utility Model Content

[0003] The purpose of this utility model is to overcome at least one defect of the prior art and provide a conductive module and a residual current operated circuit breaker.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A conductive module includes a current transformer with a through-hole. The through-hole contains multiple independently arranged partitioned spaces. Each pole of the multi-pole conductive system includes a conductive structure passing through the partitioned spaces of the current transformer. The conductive module also includes an insulating support. The current transformer and the conductive structures of the multi-pole conductive system are respectively mounted on the insulating support. The insulating support has multiple insulating spaces corresponding to and communicating with the partitioned spaces of the current transformer.

[0006] The plurality of insulating spaces include at least one inner insulating space disposed inside an insulating support. The insulating support is provided with a connecting hole that connects the inner insulating space and the partition space. A conductive structure of at least one polarity conductive system is installed in the inner insulating space, with one end extending out of the inner insulating space for connection to a first terminal, and the other end passing through the connecting hole of the insulating support and the partition space of the current transformer in sequence.

[0007] Optionally, the plurality of insulating spaces may further include at least one external insulating space disposed on the outside of the insulating support and between the current transformer, wherein a conductive structure of at least one pole conductive system is installed in the external insulating space, one end of which extends out of the external insulating space for connection with the first terminal, and the other end passes through the partition space of the current transformer.

[0008] Optionally, the direction in which the conductive structure extends out of the insulating space is perpendicular to the direction in which the conductive structure passes through the current transformer.

[0009] Optionally, the insulating support includes a first insulating plate and a second insulating plate arranged at intervals opposite to each other. The first insulating plate has at least one external partition protrusion on its outer side facing away from the second insulating plate, which is connected to the current transformer. The external partition protrusion divides the space between the first insulating plate and the current transformer into at least two external insulating spaces. The first insulating plate has at least one internal partition protrusion on its inner side facing the second insulating plate, which is connected to the second insulating plate. The internal partition protrusion divides the space between the first insulating plate and the second insulating plate into at least two internal insulating spaces.

[0010] Optionally, the outer partition boss of the insulating bracket is provided with a first slot, and the transformer through hole is provided with a partition structure. The partition structure divides the transformer through hole into multiple partition spaces. The partition structure extends towards the insulating bracket and is provided with a plug-in structure that extends out of the transformer through hole and is plugged into the first slot.

[0011] Optionally, the inner partition protrusion of the first insulating plate is provided with a second slot, and the second insulating plate is provided with a plug-in plate that is inserted into the second slot.

[0012] And / or, the first insulating plate is provided with a locking hole, and the second insulating plate has a protrusion with a buckle that engages with the locking hole, the buckle's latching part passing through the locking hole and fastening to the first insulating plate.

[0013] Optionally, the multi-pole conductive system is a four-pole conductive system, namely, an A-pole conductive system, a B-pole conductive system, a C-pole conductive system, and an N-pole conductive system. The conductive structures of the A-pole conductive system, the B-pole conductive system, the C-pole conductive system, and the N-pole conductive system each include a first conductive element, namely, an A-pole first conductive element, a B-pole first conductive element, a C-pole first conductive element, and an N-pole first conductive element, respectively. The two inner insulating spaces are a first insulating space for installing the A-pole first conductive element and a second insulating space for installing the B-pole first conductive element. The two outer insulating spaces are a third insulating space for installing the C-pole first conductive element and a fourth insulating space for installing the N-pole first conductive element.

[0014] Optionally, the inner and outer partition bosses are two cross-shaped structures opposite to each other on both sides of the first insulating plate, each having four openings. The two openings on the same side of the inner and outer partition bosses each have a connecting hole penetrating the first insulating plate. The inner side of the first insulating plate has a protruding first limiting plate and a second limiting plate, respectively opposite to the two openings on that side of the inner partition boss. The first limiting plate forms the first insulating space with the opening of the opposite inner partition boss, and the second limiting plate forms the second insulating space with the opening of the opposite inner partition boss. The outer side of the first insulating plate has a protruding third limiting plate and a fourth limiting plate, respectively opposite to the two openings on the other side of the outer partition boss. The third limiting plate forms the third insulating space with the opening of the opposite outer partition boss, and the fourth limiting plate forms the fourth insulating space with the opening of the opposite outer partition boss.

[0015] Optionally, the outer side of the first insulating plate is provided with a first baffle and a second baffle. The first baffle and the second baffle are respectively arranged along the outer edges of the two connecting holes and connected to the opposite ends of the outer partition boss.

[0016] Optionally, the inner partition boss and the outer partition boss have two openings on opposite sides of the connecting hole, each with a heat dissipation hole penetrating through the first insulating plate. The inner side of the first insulating plate has a protruding third baffle, which is arranged along the edge of the heat dissipation hole and connected to the inner partition boss.

[0017] Optionally, the fourth limiting plate is a straight-line structure, and the opening of the opposite outer dividing boss is arranged along the length direction of the first insulating plate. The transformer has a straight-line fifth limiting plate protruding on the side facing the first insulating plate. The opening of the outer dividing boss opposite to the fourth limiting plate and the fifth limiting plate are arranged along the width direction of the first insulating plate.

[0018] Optionally, the conductive structure of the multi-pole conductive system includes a first conductive element and a second conductive element. The first conductive element is located on one side of the current transformer. The first end of the first conductive element is installed in the insulating space of the insulating bracket. The second end of the first conductive element, opposite to the first end, extends out of the insulating space and is connected to the first terminal. The first end of the second conductive element passes through the partition space from the other side of the current transformer and is connected to the first end of the first conductive element.

[0019] Optionally, the first conductive element is a conductive plate structure, the second conductive element is a wire structure, and the conductive structure of the single-pole conductive system in the multi-pole conductive system further includes a terminal block, which is connected to the second end of the wire opposite to the first end of the wire.

[0020] Optionally, the second ends of the first conductive elements of the multi-pole conductive system are arranged in a row and spaced apart on one side of the insulating support.

[0021] Optionally, the transformer through hole is integrally provided with a partition structure, which divides the transformer through hole into multiple partition spaces.

[0022] A residual current operated circuit breaker includes a housing and any of the conductive modules described above. Each pole of the multi-pole conductive system includes a contact system and a first terminal and a second terminal respectively disposed at both ends of the housing. The contact system includes a moving contact and a stationary contact respectively connected to the first terminal and the second terminal.

[0023] Optionally, the first terminal, the current transformer of the conductive module, the contact system, and the second terminal are arranged sequentially along the first direction, the first terminals and second terminals of multiple conductive systems are arranged respectively along the second direction, the current transformer and the insulating support of the conductive module are arranged along the third direction, and the current transformer through hole of the current transformer is arranged through the current transformer along the third direction, wherein the first direction, the second direction, and the third direction are perpendicular to each other.

[0024] Optionally, the housing is provided with multiple parallel and spaced partitions that divide the housing into multiple electrode mounting slots for installing each electrode conductive system. The two ends of the electrode mounting slots form a first wiring slot and a second wiring slot for installing a first terminal and a second terminal. The housing is provided with a module assembly slot for accommodating the conductive module. The module assembly slot is vertical and extends through the multiple electrode mounting slots. One side of the module assembly slot is connected to the first wiring slot. The insulating support and the first terminal of the conductive module are integrally installed into the module assembly slot and the first wiring slot. The outer side of the insulating support is provided with a limiting structure. The module assembly slot is provided with a matching structure that limits and cooperates with the limiting structure.

[0025] The conductive module and residual current operated circuit breaker of this utility model are integrated into an insulating bracket by means of a current transformer and each conductive structure. The modular design facilitates automated assembly. Moreover, each conductive structure passes through the partition space of the current transformer and is installed in the insulating space of the insulating bracket. The insulating bracket not only provides insulation for each conductive structure, effectively improving the insulation performance between each conductive system, but also has an internal insulating space for installing the conductive structure. This separates the conductive structure from other parts of the circuit breaker, improving the insulation performance and reliability of the conductive system. The insulating bracket also provides installation support for each conductive structure, facilitating automated assembly.

[0026] In particular, the insulating support is also provided with an external insulating space between the insulating support and the current transformer. By placing multiple conductive systems in the internal insulating space inside the insulating support and the external insulating space between the insulating support and the current transformer, the insulation and reliability between the conductive systems can be improved.

[0027] In addition, the first insulating plate and the second insulating plate are arranged at intervals to form an insulating support, and the space on the inner and outer sides of the first insulating plate is provided with dividing bosses to divide the space on the inner and outer sides of the first insulating plate into multiple insulating spaces. The insulating support has a simple structure, which not only plays an effective role in insulation, but also facilitates assembly.

[0028] In addition, the part of the conductive structure used for mounting on the insulating support adopts a rigid conductive plate, so that the insulating support can be directly constructed to limit the structure of the first conductive element. The part of the conductive structure used for passing through the current transformer adopts a flexible wire, so that the second conductive element connected to the first conductive element can pass through the current transformer, and the part of the second conductive element located outside the current transformer can be compactly arranged.

[0029] Furthermore, by horizontally mounting the current transformer on the insulating support, the other components of the circuit breaker can be arranged more compactly and rationally. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the circuit breaker of this utility model without the top cover;

[0031] Figure 2 This is a schematic diagram of the front of the conductive module of this utility model;

[0032] Figure 3 This is a schematic diagram of the conductive structure of this utility model;

[0033] Figure 4 This is a schematic diagram of the structure on the back of the conductive module of this utility model;

[0034] Figure 5 This is a schematic diagram of the structure of the back of the first insulating plate of this utility model;

[0035] Figure 6 This is a schematic diagram of the front of the first insulating plate of this utility model;

[0036] Figure 7 This is a schematic diagram of the structure of the second insulating plate of this utility model;

[0037] Figure 8 This is a schematic diagram of the structure of the current transformer of this utility model;

[0038] Figure 9 This is a structural schematic diagram of the base of this utility model.

[0039] Current transformer 100; partition space 101; partition structure 102; plug-in structure 103; fifth limiting plate 104; insulating bracket 200; first insulating plate 210; connecting hole 211; outer partition boss 212; inner partition boss 213; first slot 214; second slot 215; snap hole 216; first limiting plate 217; second limiting plate 218; third limiting plate 219; fourth limiting plate 220; first baffle 221; second baffle 222; heat dissipation hole 223; third baffle 224; limiting protrusion 225; limiting notch 226; second insulating plate 230; plug-in plate 231; buckle 232; first Insulation space 240; second insulation space 250; third insulation space 260; fourth insulation space 270; first conductive element of pole A 310; second conductive element of pole A 320; first conductive element of pole B 410; second conductive element of pole B 420; first conductive element of pole C 510; second conductive element of pole C 520; first conductive element of pole N 610; second conductive element of pole N 620; terminal block 630; first terminal 710; second terminal 720; base 800; partition 801; pole mounting groove 802; first wiring groove 803; second wiring groove 804; module assembly groove 805; limiting groove 806; limiting post 807. Detailed Implementation

[0040] The following embodiments, in conjunction with the accompanying drawings, further illustrate the specific implementation of the conductive module and residual current operated circuit breaker of this utility model. The conductive module and residual current operated circuit breaker of this utility model are not limited to the descriptions in the following embodiments.

[0041] like Figure 1 As shown, the residual current operated circuit breaker of this embodiment includes a housing, a current transformer 100 disposed within the housing, and a multi-pole conductive system. The housing typically includes a top cover and a base 800 that fit together. The current transformer 100 has a current transformer through hole, and the current transformer through hole has multiple independently arranged partitioned spaces 101. Figure 8Each pole of the multi-pole conductive system includes a conductive structure passing through the partition space 101 of the current transformer 100. Each pole also includes a contact system and a first terminal 710 and a second terminal 720 respectively disposed at both ends of the base 800 of the housing. The contact system includes a moving contact and a stationary contact respectively connected to the first terminal 710 and the second terminal 720. The moving contact is mounted on a contact support shaft, and the stationary contact is fixedly mounted inside the base 800. The moving contact and the stationary contact are arranged correspondingly. The operating mechanism of the circuit breaker drives the contact support shaft to rotate, so that the moving contact and the stationary contact contact and separate to realize the closing and opening of the circuit breaker. The first terminal 710 is connected to the contact system through a conductive structure. The current transformer 100 is located between the first terminal 710 and the contact system. The conductive structures of each pole's conductive system pass through the current transformer 100 and are connected to the contact system of the corresponding pole. The current transformer 100 is used to collect leakage current. When there is a fault current or electric shock in the circuit connected to the circuit breaker, as long as the fault current reaches the set operating current value, the output signal of the secondary winding of the current transformer is triggered, and the residual current circuit breaker is activated through the leakage current trip unit, thereby cutting off the power supply and providing fault current and electric shock protection.

[0042] like Figure 2-4As shown, the improvement of this application is that it also includes an insulating support 200. The current transformer 100 and the conductive structure of the multi-pole conductive system are respectively mounted on the insulating support 200, forming an integrated conductive module. The insulating support 200 is provided with multiple insulating spaces corresponding to and communicating with the multiple partition spaces 101 of the current transformer 100. The conductive structure of each pole conductive system is installed in the insulating space, with one end extending out of the insulating space and connected to the first terminal 710, and the other end passing through the partition space 101 of the current transformer 100. The multiple insulating spaces include at least one inner insulating space disposed inside the insulating support 200. The insulating support 200 is provided with a connecting hole 211 connecting the inner insulating space and the partition space 101, that is, the conductive structure of at least one pole conductive system is installed in the inner insulating space, with one end extending out of the inner insulating space and connected to the first terminal 710, and the other end passing through the connecting hole 211 of the insulating support 200 and the partition space 101 of the current transformer 100 in sequence. In this embodiment, the conductive module and residual current operated circuit breaker are integrated on the insulating bracket 200 through the current transformer 100 and the conductive structures of each pole to form an integral conductive module. The modular design facilitates automated assembly. Moreover, the conductive structures of each pole pass through the partition space 101 of the current transformer 100 and are installed in the insulating space of the insulating bracket 200. The insulating bracket 200 not only provides insulation for each conductive structure, effectively improving the insulation performance between each conductive system, but also has an internal insulating space for installing the conductive structure. This allows the conductive structure to be separated from other parts of the circuit breaker through the insulating bracket 200, improving the insulation performance and reliability of the conductive system. The insulating bracket 200 also provides installation support for each conductive structure, facilitating automated assembly.

[0043] Furthermore, the plurality of insulating spaces also include at least one external insulating space disposed between the outside of the insulating support 200 and the current transformer 100, that is, the conductive structure of at least one pole conductive system is installed in the external insulating space, one end of which extends out of the external insulating space and is connected to the first terminal 710, and the other end passes through the partition space 101 of the current transformer 100. For example Figure 2 The multi-pole conductive system shown is a four-pole conductive system, namely, an A-pole conductive system, a B-pole conductive system, a C-pole conductive system, and an N-pole conductive system. The insulating bracket 200 has two inner insulating spaces for mounting the conductive structures of the A-pole and B-pole conductive systems, and two outer insulating spaces for mounting the conductive structures of the C-pole and N-pole conductive systems. By distributing multiple conductive systems within the inner insulating spaces of the insulating bracket 200 and the outer insulating spaces between the insulating bracket 200 and the current transformer 100, the insulation and reliability between the conductive systems can be improved. Alternatively, in another embodiment, the insulating bracket 200 may not have outer insulating spaces, but only inner insulating spaces, where the conductive structure of each pole conductive system is installed within the inner insulating space.

[0044] Preferably, the direction in which the conductive structure extends out of the insulating space (i.e. Figure 1 The X direction in the middle) and the direction in which the conductive structure passes through the current transformer 100 (i.e., Figure 1 (The Z direction in the middle) is perpendicular to each other.

[0045] like Figure 2 As shown, the insulating support 200 in this embodiment includes a first insulating plate 210 and a second insulating plate 230 arranged at intervals opposite to each other, as... Figure 5-6 As shown, the first insulating plate 210 has at least one external partition boss 212 protruding from its outer side facing away from the second insulating plate 230, which is connected to the current transformer 100. The external partition boss 212 divides the space between the first insulating plate 210 and the current transformer 100 into at least two external insulating spaces. The first insulating plate 210 has at least one internal partition boss 213 protruding from its inner side facing the second insulating plate 230, which is connected to the second insulating plate 230. The internal partition boss 213 divides the space between the first insulating plate 210 and the second insulating plate 230 into at least two internal insulating spaces. The first insulating plate 210 and the second insulating plate 230 are arranged at intervals opposite to each other to form an insulating support 200. The first insulating plate 210 has partition bosses on its inner and outer sides, which are used to divide the space on its inner and outer sides into multiple insulating spaces. The insulating support 200 has a simple structure, which not only provides effective insulation but also facilitates assembly.

[0046] like Figure 5 and Figure 7As shown, in this embodiment, the first insulating plate 210 and the second insulating plate 230 of the insulating bracket 200 are separately arranged. One optional connection structure between the first insulating plate 210 and the second insulating plate 230 includes a second slot 215 on the inner partition boss 213 of the first insulating plate 210, and a plug-in plate 231 on the second insulating plate 230 that engages with the second slot 215. The plug-in plate 231 is inserted into the second slot 215. The engagement between the second slot 215 on the inner partition boss 213 of the first insulating plate 210 and the plug-in plate 231 on the second insulating plate 230 facilitates rapid assembly of the first insulating plate 210 and the second insulating plate 230 and also improves the insulation performance between the two inner partition spaces. Another alternative to the connection structure between the first insulating plate 210 and the second insulating plate 230 is that the first insulating plate 210 has a locking hole 216, and the second insulating plate 230 has a protruding buckle 232 that mates with the locking hole 216. The buckle 232 passes through the locking hole 216 and fastens onto the first insulating plate 210. The locking hole 216 of the first insulating plate 210 and the protruding buckle 232 of the second insulating plate 230 mate, making installation convenient and more secure. Of course, as other embodiments, the plug-in and snap-fit ​​methods can be used independently or together. Obviously, the first insulating plate 210 and the second insulating plate 230 of the insulating bracket 200 in this embodiment can also be fixedly connected or integrally connected by other methods.

[0047] Preferably, the current transformer 100 is inserted into or snapped onto the outside of the insulating bracket 200. For example... Figure 6 and Figure 8 As shown, in a preferred embodiment of the connection structure between the insulating support 200 and the current transformer 100, the outer partition boss 212 of the insulating support 200 is provided with a first slot 214, and the current transformer 100 has a partition structure 102 in its through hole, which divides the through hole into multiple partition spaces 101. The partition structure 102 extends towards the insulating support 200 and provides a plug-in structure 103 that extends out of the through hole and engages with the first slot 214. The partition structure 102 in the through hole extends directly outward to form the plug-in structure 103 for insertion into the insulating support 200, which simplifies the structure, facilitates rapid assembly of the insulating support 200 and the current transformer 100, and also improves the insulation performance between the two outer partition spaces.

[0048] like Figure 1-3As shown, another improvement of this application is to optimize the conductive structure of the multi-pole conductive system. The conductive structure of the multi-pole conductive system includes a first conductive element and a second conductive element. The first conductive element is located on one side of the current transformer 100. The first end of the first conductive element is installed in the insulating space of the insulating bracket 200. The second end of the first conductive element, opposite to the first end, extends out of the insulating space and is connected to the first terminal 710. The first end of the second conductive element passes through the partition space 101 from the other side of the current transformer 100 and is connected to the first end of the first conductive element. The second end of the second conductive element, opposite to the first end, is used to connect to the contact system.

[0049] The first conductive element is a conductive plate structure, and the second conductive element is a wire structure. In a multi-pole conductive system, the conductive structure of only one pole conductive system also includes a terminal block 630. The terminal block 630 of this pole conductive system is connected to the second end opposite to the first end of the second conductive element. The second conductive element of this pole conductive system is connected to the contact system through the terminal block 630. In this embodiment, the first and second conductive elements are separately configured, as are the terminal block 630 and the second conductive element. The first and second conductive elements, and the terminal block 630 and the second conductive element, can be connected by welding or other methods. The portion of the conductive structure used for mounting on the insulating support 200 uses a rigid conductive plate, allowing the insulating support 200 to be directly constructed to limit the structure of the first conductive element. The portion of the conductive structure used for passing through the current transformer 100 uses a flexible wire, facilitating the passage of the second conductive element connected to the first conductive element through the current transformer 100, and allowing for a compact arrangement of the portion of the second conductive element outside the current transformer 100. Obviously, in other embodiments, the second conductive element can also be implemented using a conductive plate, and the first conductive element can also be implemented using a wire.

[0050] Furthermore, the second ends of the first conductive elements of the multi-pole conductive system are arranged in a row and spaced apart on one side of the insulating bracket 200, so as to be directly connected to the row of first terminals 710 in the multi-pole conductive system.

[0051] In this embodiment, the transformer through-hole of the current transformer 100 is integrally formed with the partition structure 102, reducing the number of parts, simplifying assembly, and facilitating automated assembly. Of course, in other embodiments, the partition structure 102 can also be an insulating component that is separately formed from the current transformer 100.

[0052] like Figure 2-6As shown, the multi-pole conductive system in this embodiment is a four-pole conductive system, namely, an A-pole conductive system, a B-pole conductive system, a C-pole conductive system, and an N-pole conductive system. The conductive structures of the A-pole conductive system, the B-pole conductive system, the C-pole conductive system, and the N-pole conductive system each include a first conductive element, namely, an A-pole first conductive element 310, a B-pole first conductive element 410, a C-pole first conductive element 510, and an N-pole first conductive element 610. The conductive structures of the A-pole conductive system, the B-pole conductive system, the C-pole conductive system, and the N-pole conductive system each include a second conductive element, namely, an A-pole second conductive element 320, a B-pole second conductive element 420, a C-pole second conductive element 520, and an N-pole second conductive element 620. The N-pole conductive system also includes a terminal block 630.

[0053] In this embodiment, an inner partition boss 213 protrudes from the inner side of the first insulating plate 210, dividing the space between the first insulating plate 210 and the second insulating plate 230 into two inner insulating spaces. The two inner insulating spaces are a first insulating space 240 for installing the A-pole first conductive element 310 and a second insulating space 250 for installing the B-pole first conductive element 410. An outer partition boss 212 protrudes from the outer side of the first insulating plate 210, dividing the space between the first insulating plate 210 and the current transformer 100 into two outer insulating spaces. The two outer insulating spaces are a third insulating space 260 for installing the C-pole first conductive element 510 and a fourth insulating space 270 for installing the N-pole first conductive element 610. Correspondingly, the transformer 100 has four partition spaces 101 in its transformer through hole, namely the first partition space, the second partition space, the third partition space, and the fourth partition space, which are respectively connected to the first insulation space 240, the second insulation space 250, the third insulation space 260, and the fourth insulation space 270; and two connecting holes are provided through the first insulation plate 210, namely the first connecting hole connecting the first partition space and the first insulation space 240, and the second connecting hole connecting the second partition space and the second insulation space 250.

[0054] In this embodiment, the first end of the A-pole first conductive element 310 is installed in the first insulating space 240 and connected to the first end of the A-pole second conductive element 320, which passes through the first partition space and the first connecting hole in sequence; the first end of the B-pole first conductive element 410 is installed in the second insulating space 250 and connected to the first end of the B-pole second conductive element 420, which passes through the second partition space and the second connecting hole in sequence; the first end of the C-pole first conductive element 510 is installed in the third insulating space 260 and connected to the first end of the C-pole second conductive element 520, which passes through the third partition space. The first end of the N-pole first conductive element 610 is installed in the fourth insulating space 270 and is connected to the first end of the N-pole second conductive element 620 that passes through the fourth partition space. The second end of the N-pole second conductive element 620 is connected to the terminal block 630. The second end of the N-pole first conductive element 610 extending out of the fourth insulating space 270, the second end of the A-pole first conductive element 310 extending out of the first insulating space 240, the second end of the B-pole first conductive element 410 extending out of the second insulating space 250, and the second end of the C-pole first conductive element 510 extending out of the third insulating space 260 are arranged in sequence.

[0055] Specifically, the inner dividing boss 213 and the outer dividing boss 212 are two cross-shaped structures oppositely arranged on both sides of the first insulating plate 210, each having four openings. Specifically, the inner dividing boss 213 and the outer dividing boss 212 have opposite first ends, opposite second ends, opposite third ends, and opposite fourth ends, each having a first opening between the first and second ends, a second opening between the second and third ends, a third opening between the third and fourth ends, and a fourth opening between the fourth and first ends. The two openings on the same side of the inner dividing boss 213 and the outer dividing boss 212 respectively provide connecting holes 211 through the first insulating plate 210. Specifically, the first opening of the inner dividing boss 213 and the outer dividing boss 212 provides a first connecting hole through the first insulating plate 210, and the second opening of the inner dividing boss 213 and the outer dividing boss 212 provides a second connecting hole through the first insulating plate 210. The inner side of the first insulating plate 210 protrudes and has two openings (i.e., inner dividing holes) on the same side of the inner dividing boss 213. A first limiting plate 217 and a second limiting plate 218 are positioned opposite to the first opening and the second opening on the side of the partition boss 213. The first limiting plate 217 forms the first insulating space 240 with the opening of the opposing inner partition boss 213 (i.e., the first opening of the inner partition boss 213), and the second limiting plate 218 forms the second insulating space 250 with the opening of the opposing inner partition boss 213 (i.e., the second opening of the inner partition boss 213). The outer side of the first insulating plate 210 has protrusions with respective... A third limiting plate 219 and a fourth limiting plate 220 are positioned opposite to the two openings on the other side of the outer separating boss 212 (i.e., the third opening and the fourth opening of the outer separating boss 212). The third limiting plate 219 forms the third insulating space 260 with the opening of the opposite outer separating boss 212 (i.e., the third opening of the outer separating boss 212), and the fourth limiting plate 220 forms the fourth insulating space 270 with the opening of the opposite outer separating boss 212 (i.e., the fourth opening of the outer separating boss 212).

[0056] In this embodiment, the first slot 214 on the outer partition boss 212 is preferably a cross-shaped groove, and correspondingly, the partition structure 102 and the plug-in structure 103 of the current transformer 100 are cross-shaped structures. Of course, the first slot 214 and the plug-in structure 103 can also be straight. The second slot 215 on the inner partition boss 213 is preferably a straight groove, and correspondingly, the plug-in plate 231 is a straight structure. Of course, the second slot 215 and the plug-in plate 231 can also be cross-shaped.

[0057] Preferably, the outer side of the first insulating plate 210 is provided with a first baffle 221 and a second baffle 222. The first baffle 221 and the second baffle 222 are respectively arranged along the outer edges of the two connecting holes 211 and connected to the opposite ends of the outer separating boss 212. That is, the first baffle 221 is arranged along the outer edge of the first connecting hole and connected to the first end of the outer separating boss 212, and the second baffle 222 is arranged along the outer edge of the second connecting hole and connected to the third end of the outer separating boss 212. The arrangement of the first baffle 221 and the second baffle 222 increases the creepage distance and improves the insulation performance between the conductive systems of each pole. The first baffle 221 is preferably a straight-line structure that is perpendicularly connected to the first end of the outer separating boss 212, but it can also be an arc-shaped or other shaped structure; the second baffle 222 is preferably a straight-line structure that is perpendicularly connected to the third end of the outer separating boss 212, but it can also be an arc-shaped or other shaped structure.

[0058] Preferably, the inner partition boss 213 and the outer partition boss 212 have two openings (i.e., the third opening and the fourth opening) on ​​opposite sides of the connecting hole 211, respectively, through which the first insulating plate 210 is provided with heat dissipation holes 223. That is, one heat dissipation hole 223 is a first heat dissipation hole connecting the interior of the insulating support 200 and the third insulating space 260, so as to dissipate heat at the connection between the C pole first conductive element 510 and the C pole second conductive element 520, and the other heat dissipation hole 223 is a second heat dissipation hole connecting the interior of the insulating support 200 and the fourth insulating space 270, so as to dissipate heat at the connection between the N pole first conductive element 610 and the N pole second conductive element 62. The inner side of the first insulating plate 210 is provided with a third baffle 224, which is arranged along the edge of the heat dissipation hole 223 and connected to the inner partition boss 213, increasing the creepage distance and improving the insulation performance between the conductive systems of each pole.

[0059] Preferably, the fourth limiting plate 220 has a straight-line structure, and the opening of the opposite outer dividing boss 212 is arranged along the length direction of the first insulating plate 210. The current transformer 100 has a straight-line fifth limiting plate 104 protruding on the side facing the first insulating plate 210. The opening of the outer dividing boss 212 opposite to the fourth limiting plate 220 and the fifth limiting plate 104 are arranged along the width direction of the first insulating plate 210.

[0060] In this embodiment, the first end of the first conductive element 310 of the A pole is an L-shaped flat plate structure, and the second end of the first conductive element 310 of the A pole is a straight flat plate structure. Correspondingly, the first limiting plate 217 is an L-shaped folded plate structure with its opening facing the inner dividing boss 213. One end is perpendicularly connected to the second end of the inner dividing boss 213, so that the first end, the second end of the inner dividing boss 213 and the first limiting plate 217 form an L-shaped first insulating space 240.

[0061] The first end of the B-electrode first conductive element 410 is a U-shaped flat plate structure, and the second end of the B-electrode first conductive element 410 is a straight flat plate structure. Correspondingly, the second limiting plate 218 is an L-shaped folded plate structure with its opening facing the inner dividing boss 213, and one end is perpendicularly connected to the second end of the inner dividing boss 213. The third baffle 224 is an L-shaped folded plate structure with its opening facing the inner dividing boss 213, and one end of the third baffle 224 is perpendicularly connected to the third end of the inner dividing boss 213. Its inner side is connected to the fourth end of the inner dividing boss 213, so that the third baffle 224, the third end and the second end of the inner dividing boss 213, and the second limiting plate 218 form a U-shaped second insulating space 250.

[0062] The first end of the first conductive element 510 of the C electrode is an L-shaped flat plate structure, with one end limited in the third opening of the outer dividing boss 212, and the other end abutting against the third limiting plate 219 on the outside. The second end of the first conductive element 510 of the C electrode is an L-shaped folded plate structure, and correspondingly, the third limiting plate 219 is a straight flat plate structure.

[0063] The first end of the N-pole first conductive element 610 is an L-shaped flat plate structure. One end is limited within the fourth opening of the outer dividing boss 212 and the inner side of this end abuts against the fifth limiting plate 104 of the current transformer 100. The outer side of the other end abuts against the fourth limiting plate 220. The second end of the N-pole first conductive element 610 is an L-shaped folded plate structure. Correspondingly, the fourth limiting plate 220 is a straight flat plate structure.

[0064] like Figure 1As shown in the diagram, the layout structure of the residual current operated circuit breaker in this embodiment is as follows: the first terminal 710, the current transformer 100 of the conductive module, the contact system, and the second terminal 720 are arranged sequentially along a first direction. The first terminals 710 and second terminals 720 of multiple conductive systems are arranged along a second direction. The current transformer 100 of the conductive module and the insulating support 200 are arranged along a third direction, that is, the current transformer 100 is located above the insulating support 200. The current transformer through-hole of the current transformer 100 is arranged through the current transformer 100 along a third direction. The first direction, the second direction, and the third direction are perpendicular to each other. The first direction is the X direction in the diagram, which is the length direction of the housing; the second direction is the Y direction in the diagram, which is the width direction of the housing; and the third direction is the Z direction in the diagram, which is the height direction of the housing. The circuit breaker's operating mechanism is located above the insulating support 200 and on one side of the current transformer 100 in the second direction. The first end of the N-pole first conductive element 610 of the N-pole conductive system passes through the space between the operating mechanism and the insulating support 200 and connects to the second end of the N-pole first conductive element 610. The terminal block 630 of the N-pole conductive system, connected to the N-pole second conductive element 620, has an L-shaped folded plate structure with an opening facing the current transformer 100 at one end and an L-shaped flat plate structure at the other end, located between the operating mechanism and the first end of the N-pole first conductive element 610. There is also installation space below the insulating support 200 for installing electronic component boards. By horizontally mounting the current transformer 100 on the insulating support 200, the other mechanisms of the circuit breaker can be arranged more compactly and rationally.

[0065] like Figure 9 As shown, the base 800 of the housing is provided with a plurality of parallel and spaced partitions 801, which divide the base 800 of the housing into a plurality of pole mounting slots 802 for mounting each pole conductive system. The two ends of the pole mounting slots 802 form a first wiring slot 803 and a second wiring slot 804 for mounting the first terminal 710 and the second terminal 720. The base 800 of the housing is provided with a module assembly slot 805 for accommodating the conductive module. The module assembly slot 805 is vertical and penetrates the plurality of pole mounting slots 802. One side of the module assembly slot 805 is connected to the first wiring slot 803. The insulating support 200 of the conductive module and the first terminal 710 are integrally installed into the module assembly slot 805 and the first wiring slot 803. The outer side of the insulating support 200 is provided with a limiting structure. The module assembly slot 805 is provided with a matching structure that limits and cooperates with the limiting structure.

[0066] Specifically, the limiting structure includes a limiting protrusion 225 protruding from one side of the first insulating plate 210 of the insulating bracket 200, and two limiting notches 226 respectively provided on both sides of the other end of the first insulating plate 210 of the insulating bracket 200. The mating structure includes a limiting groove 806 that mates with the limiting protrusion 225, and two limiting posts 807 that mate with the two limiting notches 226. When the insulating bracket 200 is installed into the module assembly slot 805, the limiting protrusion 225 of the insulating bracket 200 is installed into the limiting groove 806 of the housing, and the limiting posts 807 of the housing are installed into the limiting notches 226 of the insulating bracket 200.

[0067] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used during use. They are only for ease of description and do not indicate that the device or component referred to must have a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating relative importance.

[0068] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A conductive module, comprising a current transformer (100), wherein the current transformer (100) has a current transformer through hole, and the current transformer through hole has a plurality of independently arranged partition spaces (101), each of the multi-pole conductive systems comprising a conductive structure passing through the partition spaces (101) of the current transformer (100), characterized in that: The conductive module further includes an insulating bracket (200). The current transformer (100) and the conductive structure of the multi-pole conductive system are respectively mounted on the insulating bracket (200). The insulating bracket (200) is provided with multiple insulating spaces that correspond to and communicate with the multiple partition spaces (101) of the current transformer (100). The plurality of insulating spaces include at least one inner insulating space disposed inside an insulating support (200). The insulating support (200) is provided with a connecting hole (211) connecting the inner insulating space and the partition space (101). A conductive structure of at least one polarity conductive system is installed in the inner insulating space, with one end extending out of the inner insulating space for connection to the first terminal (710), and the other end passing through the connecting hole (211) of the insulating support (200) and the partition space (101) of the transformer (100) in sequence.

2. The conductive module according to claim 1, characterized in that: The plurality of said insulating spaces also include at least one external insulating space disposed between the outside of the insulating support (200) and the current transformer (100), wherein the conductive structure of at least one pole conductive system is installed in the external insulating space, one end of which extends out of the external insulating space for connection with the first terminal (710), and the other end passes through the partition space (101) of the current transformer (100).

3. The conductive module according to claim 1, characterized in that: The direction in which the conductive structure extends out of the insulating space is perpendicular to the direction in which the conductive structure passes through the current transformer (100).

4. The conductive module according to claim 2, characterized in that: The insulating support (200) includes a first insulating plate (210) and a second insulating plate (230) arranged at intervals opposite to each other. The first insulating plate (210) has at least one outer partition boss (212) protruding on the outer side facing away from the second insulating plate (230) and connected to the current transformer (100). The outer partition boss (212) divides the space between the first insulating plate (210) and the current transformer (100) into at least two outer insulating spaces. The first insulating plate (210) has at least one inner partition boss (213) protruding on the inner side facing the second insulating plate (230) and connected to the second insulating plate (230). The inner partition boss (213) divides the space between the first insulating plate (210) and the second insulating plate (230) into at least two inner insulating spaces.

5. The conductive module according to claim 4, characterized in that: The outer partition boss (212) of the insulating bracket (200) is provided with a first slot (214). The transformer through hole is provided with a partition structure (102). The partition structure (102) divides the transformer through hole into multiple partition spaces (101). The partition structure (102) extends towards the insulating bracket (200) and is provided with a plug-in structure (103) that extends out of the transformer through hole and is plugged into the first slot (214).

6. The conductive module according to claim 4, characterized in that: The inner partition boss (213) of the first insulating plate (210) is provided with a second slot (215), and the second insulating plate (230) is provided with a plug plate (231) that is inserted into the second slot (215). The plug plate (231) is inserted into the second slot (215). And / or, the first insulating plate (210) is provided with a locking hole (216), and the second insulating plate (230) is provided with a buckle (232) that cooperates with the locking hole (216). The buckle (232) passes through the locking hole (216) and is fastened to the first insulating plate (210).

7. The conductive module according to claim 4, characterized in that: The multi-pole conductive system is a four-pole conductive system, namely, an A-pole conductive system, a B-pole conductive system, a C-pole conductive system, and an N-pole conductive system. The conductive structures of the A-pole conductive system, the B-pole conductive system, the C-pole conductive system, and the N-pole conductive system each include a first conductive element, namely, an A-pole first conductive element (310), a B-pole first conductive element (410), a C-pole first conductive element (510), and an N-pole first conductive element (610). The two inner insulating spaces are a first insulating space (240) for installing the A-pole first conductive element (310) and a second insulating space (250) for installing the B-pole first conductive element (410). The two outer insulating spaces are a third insulating space (260) for installing the C-pole first conductive element (510) and a fourth insulating space (270) for installing the N-pole first conductive element (610).

8. The conductive module according to claim 7, characterized in that: The inner dividing boss (213) and the outer dividing boss (212) are two cross-shaped structures opposite to each other on both sides of the first insulating plate (210), each having four openings. The two openings on the same side of the inner dividing boss (213) and the outer dividing boss (212) are respectively provided with connecting holes (211) penetrating the first insulating plate (210). The inner side of the first insulating plate (210) has a protruding first limiting plate (217) and a second limiting plate (218) respectively opposite to the two openings on that side of the inner dividing boss (213). The first limiting plate (217) and the opening of the opposite inner dividing boss (213) form the fourth cross-shaped structure. An insulating space (240) is formed between the second limiting plate (218) and the opening of the opposite inner partition boss (213). The outer side of the first insulating plate (210) is provided with a third limiting plate (219) and a fourth limiting plate (220) respectively opposite to two openings on the other side of the outer partition boss (212). The third limiting plate (219) and the opening of the opposite outer partition boss (212) form the third insulating space (260). The fourth limiting plate (220) and the opening of the opposite outer partition boss (212) form the fourth insulating space (270).

9. The conductive module according to claim 8, characterized in that: The outer side of the first insulating plate (210) is provided with a first baffle (221) and a second baffle (222). The first baffle (221) and the second baffle (222) are respectively arranged along the outer edges of the two connecting holes (211) and connected to the opposite ends of the outer partition boss (212).

10. The conductive module according to claim 8, characterized in that: The inner partition boss (213) and the outer partition boss (212) are provided with two openings on opposite sides of the connecting hole (211), respectively penetrating the first insulating plate (210) and providing heat dissipation holes (223). The inner side of the first insulating plate (210) is provided with a third baffle (224), which is arranged along the edge of the heat dissipation hole (223) and connected to the inner partition boss (213).

11. The conductive module according to claim 8, characterized in that: The fourth limiting plate (220) has a straight-line structure, and the opening of the opposite outer dividing boss (212) is arranged along the length direction of the first insulating plate (210). The transformer (100) has a straight-line fifth limiting plate (104) protruding on the side facing the first insulating plate (210). The opening of the outer dividing boss (212) opposite to the fourth limiting plate (220) and the fifth limiting plate (104) are arranged along the width direction of the first insulating plate (210).

12. The conductive module according to claim 1, characterized in that: The conductive structure of the multi-pole conductive system includes a first conductive element and a second conductive element. The first conductive element is located on one side of the transformer (100). The first end of the first conductive element is installed in the insulating space of the insulating bracket (200). The second end of the first conductive element, opposite to the first end, extends out of the insulating space and is connected to the first terminal (710). The first end of the second conductive element passes through the partition space (101) from the other side of the transformer (100) and is connected to the first end of the first conductive element.

13. The conductive module according to claim 12, characterized in that: The first conductive element is a conductive plate structure, the second conductive element is a wire structure, and the conductive structure of the single-pole conductive system in the multi-pole conductive system also includes a terminal block (630), which is connected to the second end of the wire opposite to the first end of the wire.

14. The conductive module according to claim 12, characterized in that: The second ends of the first conductive elements of the multi-polar conductive system are spaced apart and arranged in a row on one side of the insulating bracket (200).

15. The conductive module according to claim 1, characterized in that: The transformer through hole is integrally provided with a partition structure (102), which divides the transformer through hole into multiple partition spaces (101).

16. A residual current operated circuit breaker, characterized in that: The multi-pole conductive system includes a housing and a conductive module as described in any one of claims 1-15. Each pole of the multi-pole conductive system includes a contact system and a first terminal (710) and a second terminal (720) respectively disposed at both ends of the housing. The contact system includes a moving contact and a stationary contact respectively connected to the first terminal (710) and the second terminal (720).

17. The residual current operated circuit breaker according to claim 16, characterized in that: The first terminal (710), the current transformer (100) of the conductive module, the contact system and the second terminal (720) are arranged sequentially along the first direction. The first terminals (710) and the second terminals (720) of the multiple conductive systems are arranged along the second direction. The current transformer (100) and the insulating support (200) of the conductive module are arranged along the third direction. The current transformer through hole of the current transformer (100) is arranged through the current transformer (100) along the third direction. The first direction, the second direction and the third direction are perpendicular to each other.

18. The residual current operated circuit breaker according to claim 16, characterized in that: The housing is provided with a plurality of parallel and spaced partitions (801) that divide the housing into a plurality of pole mounting slots (802) for mounting each pole conductive system. The two ends of the pole mounting slots (802) form a first wiring slot (803) and a second wiring slot (804) for mounting a first terminal (710) and a second terminal (720). The housing is provided with a module assembly slot (805) for accommodating the conductive module. The module assembly slot (805) is vertical and penetrates the plurality of pole mounting slots (802). One side of the module assembly slot (805) is connected to the first wiring slot (803). The insulating bracket (200) of the conductive module and the first terminal (710) are integrally installed in the module assembly slot (805) and the first wiring slot (803). The outer side of the insulating bracket (200) is provided with a limiting structure. The module assembly slot (805) is provided with a matching structure that matches the limiting structure.

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