Circuit breaker module and switch cabinet

Abstract

The utility model provides a circuit breaker module and a switch cabinet, and relates to the technical field of low-voltage electrical appliances, the circuit breaker module comprises a shell, and a circuit breaker and a conductive plug-in which are integrated in the shell, one end of the conductive plug-in is connected with the circuit breaker, and the other end of the conductive plug-in is used for being connected with an external device. The circuit breaker and the conductive plug-in are both fixed in the shell, and the conductive plug-in and the circuit breaker are connected in an inserted mode and hidden in the shell, so that reliability and safety of power supply are improved; the circuit breaker is provided with a built-in mutual inductor, and after the circuit breaker adapts to different circuit breakers, the sizes of the formed circuit breaker modules are All components are integrally installed in the circuit breaker module and can be prefabricated in advance, so that the assembly efficiency is greatly improved, and the production cost is reduced. Only the whole circuit breaker module needs to be pulled out and a new circuit breaker module needs to be inserted for field maintenance and replacement, power failure is not needed, the replacement efficiency is greatly improved, and the operation and maintenance cost is reduced.

Description

Technical Field

[0001] This application relates to the technical field of low-voltage electrical appliances, and more specifically, to a circuit breaker module and a switchgear cabinet. Background Art

[0002] For a conventional fixed-separation type low-voltage complete switchgear cabinet, its fixed-separation unit consists of components such as plug-in circuit breakers, plug-in bases, current transformers, and copper bars, and the installation method of each component is a fixed installation. When assembling the entire unit, each component needs to be installed one by one in the switchgear cabinet, which takes a long time and has low efficiency, increasing the production cost; on the other hand, during on-site replacement and maintenance, the entire circuit needs to be powered off, and the circuit breaker needs to be replaced in the cabinet, and the plug-in base and copper bars need to be disassembled. Due to the limited space in the cabinet, the operation is inconvenient, time-consuming, and inefficient, increasing the operation and maintenance cost. Utility Model Content

[0003] The purpose of this application is to provide a circuit breaker module and a switchgear cabinet, aiming at the deficiencies in the above-mentioned prior art, to reduce the volume of the circuit breaker module and make the disassembly and assembly of the circuit breaker module and the switchgear cabinet convenient.

[0004] To achieve the above purpose, the technical solutions adopted in the embodiments of this application are as follows:

[0005] On the one hand, an embodiment of this application provides a circuit breaker module, including a housing, and a circuit breaker and a conductive plug-in integrated in the housing. One end of the conductive plug-in is connected to the circuit breaker, and the other end is used to connect an external device.

[0006] Optionally, a current transformer is also integrated in the circuit breaker. The front end of the conductive plug-in is pluggably connected to the rear end of the circuit breaker, and the rear end of the conductive plug-in is used to connect the external device. The incoming line end and the outgoing line end of the circuit breaker are both located at the rear end of the circuit breaker.

[0007] Optionally, a fixing structure is further included, and the circuit breaker is fixed in the housing through the fixing structure.

[0008] Optionally, the fixing structure includes two oppositely arranged fixing plates, the circuit breaker is clamped between the two fixing plates, and the fixing plates are fixed to the housing.

[0009] Optionally, a plurality of mounting holes for fixing to the fixing plates are provided on the housing. The fixing plates are connected to different positions of the mounting holes to adapt to circuit breakers of different sizes.

[0010] Optionally, the conductive plug-in is arranged on a connecting piece, and the conductive plug-in is fixed in the housing through the connecting piece.

[0011] Optionally, the conductive plug-ins include a first conductive plug-in and a second conductive plug-in that are arranged side by side and penetrated through the connecting member. One end of the first conductive plug-in and the second conductive plug-in is plugged into the circuit breaker, and the other end is connected to the external device.

[0012] Optionally, one end of the housing forms an opening, and the external device penetrates into the opening to be connected to the end of the conductive plug-in.

[0013] Optionally, a slide rail is further arranged on the outer side of the housing for cooperating with the guide rail of the cabinet body for installation.

[0014] On the other hand, an embodiment of the present application provides a switch cabinet, including a cabinet body and at least one of the above-mentioned circuit breaker modules. The circuit breaker module is slidably installed on the cabinet body through a slide rail; when there are multiple circuit breaker modules, the heights of the multiple circuit breaker modules are the same.

[0015] The beneficial effects of the present application include:

[0016] The present application provides a circuit breaker module and a switch cabinet. The circuit breaker and the conductive plug-ins are both fixed in the housing. The conductive plug-ins are plugged and connected to the circuit breaker and hidden inside the housing, improving the reliability and safety of power supply; all components are integrally installed in the circuit breaker module, reducing the volume of the circuit breaker module, which can be prefabricated in advance, greatly improving the assembly efficiency and reducing the production cost. For on-site maintenance and replacement, only the entire circuit breaker module needs to be pulled out and a new circuit breaker module is inserted, without power outage, greatly improving the replacement efficiency and reducing the operation and maintenance cost. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of a circuit breaker module provided by an embodiment of the present application;

[0019] Figure 2 It is an exploded structural diagram of a circuit breaker module provided by an embodiment of the present application;

[0020] Figure 3 It is an exploded structural diagram of a switch cabinet provided by an embodiment of the present application.

[0021] Icons: 10-switch cabinet; 10a-cabinet body; 10b-receiving cavity; 11-adapter module; 12-vertical row module; 100A-circuit breaker module; 100-housing; 100a-slide rail; 100b-handle; 100c-frame; 100d-upper cover; 101-circuit breaker; 102-fixing plate; 103-connector; 104-conductive plug-in; 104a-first conductive plug-in; 104b-second conductive plug-in; 105-heat dissipation hole; 106-inlet terminal; 107-outlet terminal; a-height direction. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. It should be noted that, in the absence of conflict, the various features in the embodiments of the present application can be combined with each other, and the combined embodiments are still within the scope of protection of the present application.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of the present application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0028] Generally, for a conventional fixed-separated low-voltage switchgear assembly, its fixed-separated unit consists of components such as plug-in circuit breakers, plug-in bases, current transformers, and copper bars, and the installation method of each component is a fixed installation. When assembling the entire unit, each component needs to be installed one by one inside the switchgear, which takes a long time and is inefficient, increasing the production cost. During on-site replacement and maintenance, the entire circuit needs to be powered off, and the circuit breaker needs to be replaced inside the cabinet, and the plug-in base and copper bars need to be disassembled. Due to the limited space inside the cabinet, the operation is inconvenient, time-consuming, and inefficient, increasing the operation and maintenance cost. In addition, the height of the circuit breaker compartment is affected by the magnitude of the circuit current, which is approximately: 150 mm (≤250 A), 250 mm (400 A), and 300 mm (630 A) respectively, and there are many types of materials.

[0029] In view of this, to solve the above problems, on the one hand, an embodiment of the present application provides a circuit breaker module of 100 A. Please refer to Figure 1 As shown, it includes a housing 100, and a circuit breaker 101 and a conductive plug 104 integrally provided inside the housing 100. A current transformer is also integrated inside the circuit breaker 101. One end of the conductive plug 104 is connected to the circuit breaker 101, and the other end is used to connect an external device.

[0030] The housing 100 serves as the support structure of the circuit breaker module 100 A. As Figure 2 shown, it may include a frame 100c and an upper cover 100d provided on the frame 100c. The frame 100c is an overall rectangular frame 100c, and the cross-section of the frame 100c forms a U-shaped structure, so that three ends of the frame 100c are open, and the upper end of the frame 100c is fixedly sealed by the upper cover 100d; two opposite front plates are provided at the front end of the frame 100c, and there is a spacing between the two front plates to form a front-end opening, and a handle 100b is provided on each of the two front plates to facilitate the disassembly and assembly of the circuit breaker module 100 A.

[0031] The rear-end opening of the frame 100c is used for the conductive plug 104 to connect with an external device. In the present application, the conductive plug 104 does not protrude outside the housing 100, and the external device or a wire extends into the housing 100 through the rear-end opening of the housing 100 to connect with the conductive plug 104.

[0032] Specifically, a mutual inductor is integrated within the circuit breaker 101. The front end of the conductive plug-in 104 is pluggably connected to the rear end of the circuit breaker 101, and the rear end of the conductive plug-in 104 is used to connect to external devices. The incoming line terminal 106 and the outgoing line terminal 107 of the circuit breaker 101 are both located at the rear end of the circuit breaker 101.

[0033] Exemplarily, Figure 2 on the left side is the rear end and on the right side is the front end. The front end of the conductive plug-in 104 is pluggably connected to the rear end of the circuit breaker 101. The incoming line terminal 106 and the outgoing line terminal 107 are provided at the rear end of the circuit breaker 101. That is to say, the wiring method of the circuit breaker 101 adopts the method of incoming from the rear and outgoing from the rear; the rear end of the conductive plug-in 104 is connected to external devices.

[0034] In addition, different-sized hollow holes are respectively formed on the frame 100c and the upper cover 100d for ventilation, heat dissipation, or for observing internal devices.

[0035] A circuit breaker 101 is provided within the housing 100, and a mutual inductor is integrated within the circuit breaker 101. In the prior art, the mutual inductor is placed in the circuit breaker 101 module, and the sizes of the mutual inductors required for different specifications of the circuit breaker 101 are different, resulting in different sizes of the circuit breaker 101 modules with different specifications. In this application, the mutual inductor is integrated into the interior of the circuit breaker 101. Then, for the overall circuit breaker module 100A, the space of the mutual inductor can be saved. After size adaptation, the circuit breaker modules 100A with different mutual inductors have the same size. Thus, the circuit breaker modules 100A can be prefabricated uniformly. When the current specifications are different, only the internal circuit breaker 101 needs to be replaced.

[0036] In addition, a conductive plug-in 104 is also integrated within the housing 100 of this application. As a modular structure, the conductive plug-in 104 includes a first conductive plug-in 104a and a second conductive plug-in 104b arranged side by side. The conductive plug-in 104 adopts the method of incoming from the top and outgoing from the bottom. As Figure 2 shown, both the first conductive plug-in 104a and the second conductive plug-in 104b are inserted through the connecting member 103. The first conductive plug-in 104a and the second conductive plug-in 104b respectively pass through the connecting member 103. The front ends and the rear ends of the first conductive plug-in 104a and the second conductive plug-in 104b are respectively located on both sides of the connecting member 103. The front ends passing through the connecting member 103 are used to plug into the circuit breaker 101, and the rear ends passing through the connecting member 103 are used to connect to external devices. The conductive plug-in 104 is fixed within the housing 100 through the connecting member 103.

[0037] The first conductive plug-in 104a, the second conductive plug-in 104b are pluggably connected to the circuit breaker 101 and are hidden inside the housing 100, greatly improving the reliability and safety of power supply.

[0038] For example, in the present application, there are three first conductive connectors 104a and three second conductive connectors 104b respectively. Their front ends are pluggably connected to the incoming line end 106 and the outgoing line end 107 of the circuit breaker 101, and their rear ends are used to connect external devices.

[0039] The incoming and outgoing line mode of the circuit breaker 101 is rear-in and rear-out, and the wiring mode of the circuit breaker 101 is pluggable connection. In the present application, the incoming line end 106, the outgoing line end 107 of the circuit breaker 101 and the end of the conductive connector 104 connecting the external device are located on the same side (both at the rear end), and the circuit breaker 101 is pluggably connected to the conductive connector 104.

[0040] The conductive connector 104 is modularly arranged. In the prior art, the circuit breaker 101 adopts the mode of left incoming line and right outgoing line, and the heights are also inconsistent. Therefore, in the prior art, the conductive connector 104 cannot be modularized. In the present application, the conductive connector 104 adopts the mode of upper incoming line and lower outgoing line, which enables the conductive connector 104 to be modularly arranged.

[0041] In addition, in the present application, the conductive connector 104 is located inside the housing 100, which also improves the overall reliability and safety of the circuit breaker module 100A.

[0042] It should be noted that the circuit breaker module 100A of the present application is a relatively independent and enclosed space, and its various components (especially the conductive connector 104) are all arranged inside the housing 100 and do not exceed the housing 100; the circuit breaker module 100A of the present application is pluggably connected to the cabinet as a whole.

[0043] For the circuit breaker module 100A provided in the embodiment of the present application, the circuit breaker 101 and the conductive connector 104 are both fixed inside the housing 100. The conductive connector 104 and the circuit breaker 101 are pluggably connected and hidden inside the housing 100, which improves the reliability and safety of power supply; the circuit breaker 101 is equipped with an in-built current transformer. After being adapted to different circuit breakers 101, the formed circuit breaker modules 100A have the same size; all components are integrally installed inside the circuit breaker module 100A, which reduces the volume of the circuit breaker module 100A and can be prefabricated in advance, greatly improving the assembly efficiency and reducing the production cost. For on-site maintenance and replacement, only the entire circuit breaker module 100A needs to be pulled out and a new circuit breaker module 100A needs to be inserted, without power outage, which greatly improves the replacement efficiency and reduces the operation and maintenance cost.

[0044] Furthermore, a fixing structure is further included, and the circuit breaker 101 is fixed inside the housing 100 through the fixing structure.

[0045] The circuit breaker 101 with the in-built current transformer is clamped by the fixing structure, and the fixing structure is installed on the housing 100 through fasteners.

[0046] The fixed structure includes two relatively arranged fixing plates 102. The circuit breaker 101 is clamped between the two fixing plates 102, and the fixing plates 102 are fixed to the housing 100.

[0047] The two fixing plates 102 are relatively arranged to form a clamping space. The circuit breaker 101 is clamped in the clamping space and then integrally installed in the housing 100. During installation, a plurality of mounting holes for fixing to the fixing plates 102 are provided on the housing 100. The fixing plates 102 are connected to the mounting holes at different positions to adapt to circuit breakers 101 of different sizes.

[0048] When the current specifications of the circuit breaker 101 are different, the sizes of the circuit breaker 101 are different, and the distance between the two fixing plates 102 can be adjusted to adapt to different circuit breakers 101. When the fixing plates 102 are connected to the mounting holes at different positions on the housing 100, the fixing plates 102 can be position-adjusted according to the circuit breaker 101 with different current specifications, so that when different current specification circuit breakers 101 are installed inside the module, the outer shape of the circuit breaker module 100A is consistent, the height of the module is uniformly 200 mm, and the current specification of the circuit breaker 101 ≤ 630 A, realizing the functions of reducing the types of parts and having a low material cost.

[0049] A plurality of heat dissipation holes 105 are formed in an array on the housing 100 and the fixing plates 102. When the circuit breaker 101 is clamped by the fixing plates 102 and arranged in the housing 100, the heat dissipation holes 105 are used for ventilation and heat dissipation of the circuit breaker 101 to ensure the normal working performance of the circuit breaker 101.

[0050] When applied to a switch cabinet, a slide rail 100a is further provided on the outer side of the housing 100 for mating installation with the guide rail of the cabinet body, realizing a plug-and-play assembly process and improving the assembly efficiency.

[0051] In summary, the circuit breaker module 100A provided in the embodiment of the present application, the circuit breaker 101 is fixed in the housing 100 through the fixing plate 102, the first conductive plug-in 104a and the second conductive plug-in 104b are fixed in the housing 100 through the connector 103, the first conductive plug-in 104a and the second conductive plug-in 104b are respectively plug-connected with the circuit breaker 101, and hidden inside the housing 100, which greatly improves the reliability and safety of power supply. The circuit breaker 101 has a built-in mutual inductor, all components are integrated and installed in the module, and the circuit breaker module 100A uses the slide rail 100a and the cabinet 10a rail to cooperate to realize the plug-and-play assembly process, which can be independently assembled outside the cabinet and can be prefabricated in advance, which greatly improves the assembly efficiency and reduces the production cost. On-site maintenance and replacement only requires the entire circuit breaker module 100A to be pulled out and the new circuit breaker module 100A to be inserted, without power outage, which greatly improves the replacement efficiency and reduces the operation and maintenance cost. The fixing plate 102 can be adjusted according to the position of the circuit breakers 101 of different current specifications. When the circuit breakers 101 of different current specifications are installed inside the module, the circuit breaker modules 100A have the same appearance, the module height is unified to 200mm, and the current specification of the circuit breaker 101 is ≤630A, thereby reducing the types of parts and reducing material costs.

[0052] On this basis, an embodiment of the present application further provides a switch cabinet, including a cabinet body and at least one of the above-mentioned circuit breaker modules 100A, wherein the circuit breaker module 100A is slidably installed through a slide rail 100a and a cabinet body 10a; when there are multiple circuit breaker modules 100A, the heights of the multiple circuit breaker modules 100A are the same.

[0053] A slide rail 100a is arranged outside the housing 100 of the circuit breaker module 100A, and a guide rail is arranged inside the cabinet 10a. The two cooperate to enable the circuit breaker module 100A to be slidably installed in the cabinet. The plug-and-play assembly process is adopted, which can realize independent assembly outside the cabinet, and can also be prefabricated in advance, which greatly improves the assembly efficiency and reduces the production cost; all components of the circuit breaker module 100A are integrated and installed in the module, and on-site maintenance and replacement only requires the entire circuit breaker module 100A to be pulled out and a new circuit breaker module 100A to be inserted, without power outage, which greatly improves the replacement efficiency and reduces the operation and maintenance cost. When multiple circuit breaker modules 100A are arranged in the cabinet 10a, the above-mentioned effect is more obvious.

[0054] For example, please refer to Figure 3 As shown, the switch cabinet 10 includes a cabinet body 10a having a receiving cavity 10b, and also includes a vertical row module 12, an adapter module 11 and at least one circuit breaker module 100A respectively located in the receiving cavity 10b; the circuit breaker module 100A is plugged and connected to the adapter module 11, and the adapter module 11 is plugged and connected to the vertical row module 12, and the circuit breaker module 100A is electrically connected to the vertical row module 12 through the adapter module 11.

[0055] By modularizing each component of the switchgear cabinet 10, the modular vertical row module 12 can be integrally installed in the receiving cavity 10b of the cabinet body 10a, and the modular adapter module 11 and the circuit breaker module 100A can also be received in the receiving cavity 10b of the cabinet body 10a. In this way, the overall integration of the switchgear cabinet 10 is high, the volume of the switchgear cabinet 10 can be reduced, and the assembly efficiency can be improved. In addition, in this application, the adapter module 11 is pluggably connected to the vertical row module 12, and the circuit breaker module 100A is pluggably connected to the adapter module 11. The circuit breaker module 100A can be electrically connected to the vertical row module 12 through the adapter module 11, and its connection method is simple. Thus, the vertical row module 12, the adapter module 11, and the circuit breaker module 100A can be quickly assembled to further shorten the assembly time of the switchgear cabinet 10, thereby improving the assembly efficiency.

[0056] Figure 3 In [the switchgear cabinet 10], there are multiple circuit breaker modules 100A along the height direction a, and the heights of the multiple circuit breaker modules 100A are the same and uniform.

[0057] This switchgear cabinet 10 includes the same structure and beneficial effects as the circuit breaker module 100A in the foregoing embodiment. The structure and beneficial effects of the circuit breaker module 100A have been described in detail in the foregoing embodiment and will not be elaborated here.

[0058] The foregoing is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A circuit breaker module, characterized in that, It includes a housing (100), as well as a circuit breaker (101) and a conductive plug-in (104) integrally arranged inside the housing (100). One end of the conductive plug-in (104) is connected to the circuit breaker (101), and the other end is used to connect to an external device; the front end of the conductive plug-in (104) is pluggably connected to the rear end of the circuit breaker (101), and the rear end of the conductive plug-in (104) is used to connect to the external device.

2. The circuit breaker module according to claim 1, wherein A current transformer is also integrally arranged inside the circuit breaker (101), and the incoming line terminal (106) and the outgoing line terminal (107) of the circuit breaker (101) are both located at the rear end of the circuit breaker (101).

3. The circuit breaker module according to claim 1 or 2, characterized in that It also includes a fixing structure, and the circuit breaker (101) is fixed inside the housing (100) through the fixing structure.

4. The circuit breaker module according to claim 3, wherein, The fixing structure includes two oppositely arranged fixing plates (102), the circuit breaker (101) is clamped between the two fixing plates (102), and the fixing plates (102) are fixed to the housing (100).

5. The circuit breaker module according to claim 4, characterized in that, A plurality of mounting holes for fixing to the fixing plates (102) are provided on the housing (100), and the fixing plates (102) are connected to the mounting holes at different positions to adapt to circuit breakers (101) of different sizes.

6. The circuit breaker module according to claim 1, wherein, The conductive plug-in (104) is arranged on a connecting member (103), and the conductive plug-in (104) is fixed inside the housing (100) through the connecting member (103).

7. The circuit breaker module according to claim 6, wherein The conductive plug-in (104) includes a first conductive plug-in (104a) and a second conductive plug-in (104b) arranged side by side and passing through the connecting member (103). One end of the first conductive plug-in (104a) and the second conductive plug-in (104b) is plugged into the circuit breaker (101), and the other end is connected to the external device.

8. The circuit breaker module according to claim 1, characterized in that, One end of the housing (100) forms an opening, and the external device passes through the opening to be connected to the end of the conductive plug-in (104).

9. The circuit breaker module according to claim 1, characterized in that, A slide rail (100a) is also provided on the outside of the housing (100) for mating installation with the guide rail of the cabinet body (10a).

10. A switch cabinet, characterized in that, It includes a cabinet body (10a) and at least one circuit breaker module (100A) as described in any one of claims 1 to 9. The circuit breaker module (100A) is slidably installed on the cabinet body (10a) through the slide rail (100a); when there are multiple circuit breaker modules (100A), the heights of the multiple circuit breaker modules (100A) are the same.

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