A drawer type switch cabinet

Abstract

The present invention provides a drawer-type switch cabinet, comprising a cabinet body and a drawer arranged in the cabinet body, wherein the drawer comprises: a drawer body; a molded case circuit breaker, comprising a circuit breaker body and a plurality of first conductive members arranged at one side of an incoming line end of the circuit breaker body, wherein the length extension direction of the circuit breaker body is the same as the withdrawal direction of the drawer; a plurality of plug-in assemblies, which are arranged at one side of the incoming line end of the circuit breaker body and extend out of the drawer body, wherein the plug-in assemblies are connected to the first conductive members and are suitable for plugging with an incoming line busbar. Since the circuit breaker body is installed in the drawer body in the same direction as the drawer withdrawal direction, and the incoming line end extends out of the drawer body, the width of the drawer and the cabinet body is greatly reduced, the sheet metal material used for manufacturing the drawer and the cabinet body is saved, the transfer copper busbar is reduced, and not only the temperature rise in the drawer is reduced, but also the production cost is reduced, and the floor space occupied by the power distribution room used for placing the cabinet body is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of switch cabinets, and in particular to a drawer-type switch cabinet. Background Art

[0002] The drawer-type switch cabinet is a closed shell made of steel plates. The electrical components of the incoming and outgoing line circuits are installed in withdrawable drawers. As a centralized control distribution center, the drawer-type switch cabinet has high reliability, safety and interchangeability. It is widely used in industrial and mining enterprises and high-rise buildings with high requirements for power supply reliability.

[0003] Existing drawer-type switch cabinets, such as Figure 27-29 As shown, it includes a cabinet body and a drawer that can be pulled out from the cabinet body. The drawer includes a drawer body 100, a first panel 101 and a second panel 102 respectively arranged on the front and rear sides of the drawer body 100. An operating handle 103 is provided on the first panel 101, and adapters 104 extending out of the drawer body 100 and correspondingly connected to the incoming (outgoing) line busbar are provided on the left and right sides of the second panel 102. A molded case circuit breaker 105 is arranged in the middle of the installation cavity of the drawer body 100. During assembly, an operating panel 108 where a circuit breaker handle 106 of the molded case circuit breaker 105 is located is arranged toward the first panel 101, and a plurality of wiring terminals on the left and right sides of the molded case circuit breaker are connected to the corresponding adapters 104 through adapter copper bars 107. The above scheme has the following defects: 1) Since the length direction of the circuit breaker is the same as the extension direction of the first panel 101, and the position and creepage distance of the transfer copper bars 107 at both ends of the incoming and outgoing lines need to be reserved, the length and width of the drawer body 100 will increase a lot, thereby greatly increasing the production cost of the drawer-type switch cabinet; 2) The power distribution room is generally equipped with several or even dozens of drawer-type switch cabinets, and the existing drawer-type switch cabinets will occupy a large area of ​​the power distribution room, which greatly increases the construction cost of the power distribution room; 3) Since the wiring terminals of the circuit breaker need to be connected to the adapter 104 through the transfer copper bar 107, the transfer copper bar 107 includes a plurality of copper bars along the width direction (X The first connection row 109 extends along the Y-axis direction, the second connection row 110 extends along the length direction of the drawer body (Y-axis direction), and the third connection row 111 extends along the height direction of the drawer body (Z-axis direction). The first connection row 109, the second connection row 110 and the third connection row 111 are connected in sequence. The transfer copper row 107 is relatively long, resulting in a large amount of copper consumables, which not only increases the production cost but also increases the temperature rise. The connecting terminals, the first connection row 109, the second connection row 110, the third connection row 111 and the adapter 104 are fixedly connected with bolts at two adjacent components, so there are many bolt connection points, which further increases the temperature rise in the drawer body. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the drawer-type switch cabinet in the prior art, such as large footprint, high temperature rise and high production cost, so as to provide a miniaturized drawer-type switch cabinet with small footprint, low temperature rise and low production cost.

[0005] To this end, the present invention provides a drawer-type switch cabinet, comprising a cabinet body, and a drawer arranged in the cabinet body, the drawer comprising a drawer body, a molded case circuit breaker and a plug-in assembly, the drawer body having an installation cavity suitable for installing the molded case circuit breaker; the molded case circuit breaker comprising a circuit breaker body, and a plurality of first conductive members arranged on one side of the incoming line end of the circuit breaker body, the length extension direction of the circuit breaker body being the same as the withdrawal direction of the drawer; a plurality of plug-in assemblies, arranged on one side of the incoming line end of the circuit breaker body and extending out of the drawer body, the plug-in assemblies being connected to the first conductive members and suitable for being plugged into the incoming line busbar.

[0006] The line inlet end of the circuit breaker body can extend out of the drawer body.

[0007] A plurality of the first conductive members are spaced apart along the width direction of the circuit breaker body, and the first conductive members include: a first connecting plate extending along the height direction of the circuit breaker body and suitable for being assembled with a plug-in assembly; a second connecting plate connected to one end of the first connecting plate and extending along the length direction of the circuit breaker body, and the second connecting plate is suitable for being connected to a contact plate inside the circuit breaker body.

[0008] The other end of the first connecting plate away from the second connecting plate is provided with a third connecting plate bent and connected thereto, the third connecting plate extends along the height direction of the circuit breaker body and is assembled with the plug-in assembly through a fastening assembly, and the two third connecting plates of two adjacent first conductive members are respectively located in two different vertical planes.

[0009] The circuit breaker body is provided with a first limiting structure suitable for limiting the position of the plug-in assembly when the incoming busbar is plugged in or out of the plug-in assembly, and / or a second limiting structure for limiting the position of the first conductive member.

[0010] A first opening is provided on a first panel on one side of the circuit breaker body for the first conductive member to extend out so as to be assembled with the plug-in assembly. The first limiting structure includes: at least one protrusion, which is provided on the edge of the plug-in assembly, and the protrusion is suitable for abutting against the first panel when the incoming busbar is inserted.

[0011] The first limiting structure further includes: at least one first stopper, which is arranged on a side of the first panel away from the protrusion, and the first stopper is suitable for abutting against the protrusion when the incoming busbar is pulled out.

[0012] The first stopper has a second opening adjacent to it for the protrusion to be inserted into or passed through, and the plug-in assembly has an assembly position where the protrusion abuts against the first stopper, and a disassembly position where the protrusion is separated from the first stopper and can pass through the second opening.

[0013] At least one protrusion is respectively disposed on both sides of the plug-in assembly, and the first panel is provided with the first stopper corresponding to and abutting against the protrusion.

[0014] The second limiting structure includes: at least one second stopper, which is arranged on the circuit breaker body or the first panel and can abut against a first surface of the first conductive member away from the plug-in assembly.

[0015] The second limiting structure further includes: at least one third stopper, which is arranged on the circuit breaker body or the first panel and can abut against the second surface of the first conductive member adjacent to the plug-in assembly.

[0016] The plug-in assembly includes a plug-in connector and an elastic member. The plug-in connector has a plug-in body and two fourth connecting plates connected to the plug-in body. The two fourth connecting plates relatively form a first slot for inserting an incoming busbar; the elastic member is arranged on the plug-in connector, and the elastic member applies an elastic force against the incoming busbar toward the fourth connecting plates.

[0017] A first partition plate and / or a second partition plate is provided between two adjacent plug-in components. The first partition plate extends along the height direction of the drawer body, and the second partition plate extends along the length direction of the drawer body.

[0018] The elastic member is an open ring with a notch, and elastic arms elastically abutting against the corresponding fourth connecting plate are respectively arranged on both sides of the notch of the open ring.

[0019] The technical solution of the present invention has the following advantages:

[0020] 1. In the drawer-type switch cabinet provided by the present invention, since the first conductive member at the incoming end of the circuit breaker body is directly connected to the plug-in assembly, the plug-in assembly extends out of the drawer body and is plugged with the incoming busbar, thereby eliminating the copper busbar and the adapter in the prior art, which not only reduces the cost of the copper busbar, but also reduces the temperature rise in the drawer body, and the length of the drawer body will be shortened; in addition, since the circuit breaker body is installed in the drawer body in the same direction as the drawer withdrawal direction, the width of the drawer and the cabinet is greatly reduced, and the sheet metal material used to manufacture the drawer and the cabinet is saved, which not only reduces the temperature rise in the drawer, but also reduces the production cost, and also greatly reduces the floor space of the power distribution room used to place the cabinet.

[0021] 2. In the drawer-type switch cabinet provided by the present invention, since the line inlet end of the circuit breaker body extends out of the drawer body, on the one hand, the length of the drawer body can be further shortened, reducing the production cost, and on the other hand, the temperature rise in the circuit breaker body and the drawer is reduced, thereby improving reliability.

[0022] 3. In the drawer-type switch cabinet provided by the present invention, a plurality of first conductive members are spaced apart along the width direction of the circuit breaker body, and the first conductive member has a first connecting plate extending along the height direction of the circuit breaker body, and a third connecting plate connected to the plug-in assembly, thereby greatly shortening the wiring length between the wiring terminal of the circuit breaker body and the plug-in assembly, thereby reducing the amount of copper busbars used and reducing production costs; in addition, since the first conductive member and the plug-in assembly are both installed on the side panels in the width direction of the circuit breaker body, the length extension direction of the circuit breaker body can be the same as the withdrawal direction of the drawer, thereby greatly reducing the width of the drawer and the cabinet, saving sheet metal materials used to manufacture the drawer and the cabinet, and reducing production costs.

[0023] 4. The drawer-type switch cabinet provided by the present invention has a first limiting structure on the circuit breaker body, which is suitable for limiting the position of the plug-in assembly when the incoming busbar and the plug-in assembly are plugged in and out, and / or a second limiting structure that limits the position of the first conductive member. Since the plug-in and pull-out force of the incoming busbar is relatively large, by providing the first limiting structure and the second limiting structure, the positions of the plug-in assembly and the first conductive member can be limited when the incoming busbar is plugged in and out, thereby improving the plug-in reliability.

[0024] 5. In the drawer-type switch cabinet provided by the present invention, a protrusion is provided on the edge of the plug-in component, and the protrusion is suitable for abutting against the first panel when the incoming busbar is inserted, so as to avoid the incoming busbar being unable to be inserted into the first slot of the plug-in component due to the plug-in component moving in the same direction as the incoming busbar; a first stopper is provided on the side of the first panel away from the protrusion, and the first stopper is suitable for abutting against the protrusion when the incoming busbar is pulled out, so as to avoid the incoming busbar being difficult to be pulled out of the first slot due to the plug-in component moving in the same direction as the incoming busbar; the mating protrusions and the first stopper have the advantage of simple structure.

[0025] 6. In the drawer-type switch cabinet provided by the present invention, the first stopper has a second opening disposed adjacent thereto and through which the protrusion can be inserted or passed, and the plug-in assembly has an assembly position where the protrusion abuts against the first stopper, and a disassembly position where the protrusion is separated from the first stopper and can pass through the second opening. The second opening is provided to facilitate rapid disassembly and assembly of the plug-in assembly and the circuit breaker body.

[0026] 7. The drawer-type switch cabinet provided by the present invention limits the position of the first conductive member by setting a second stopper and a third stopper on both sides of the first conductive member. Since the first conductive member and the plug-in assembly are fixed, the position of the plug-in assembly is also limited, which further improves the plug-in reliability.

[0027] 8. In the drawer-type switch cabinet provided by the present invention, the first connecting plate, the second connecting plate, the third connecting plate and the contact plate of the first conductive member are integrally bent and formed, so that the temperature rise is low and the structure is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a three-dimensional diagram of a first embodiment of a molded case circuit breaker of the present invention;

[0030] Figure 2 for Figure 1 A partially enlarged structural schematic diagram;

[0031] Figure 3 for Figure 1 A three-dimensional view of the middle cover;

[0032] Figure 4 is a three-dimensional diagram of a first embodiment of a plurality of first conductive members;

[0033] Figure 5 is a schematic structural diagram of a first conductive member;

[0034] Figure 6 is a three-dimensional diagram of a second embodiment of a plurality of first conductive members;

[0035] Figure 7 is a cross-sectional view of a second embodiment of a molded case circuit breaker of the present invention;

[0036] Figure 8 for Figure 7 The assembly cross-sectional view of the molded case circuit breaker and the plug-in assembly;

[0037] Fig. 9 It is a three-dimensional diagram of a cover plate in a third embodiment of a molded case circuit breaker of the present invention;

[0038] Fig.10 is a three-dimensional diagram of a plug-in assembly;

[0039] Fig.11 is a front view of the plug-in assembly;

[0040] Fig.12 is a side view of the plug-in assembly;

[0041] Fig.13is a perspective view of the device of the present invention;

[0042] Fig.14 It is a schematic diagram of the explosion structure of the device;

[0043] Fig.15 for Fig.13 Side view of

[0044] Fig.16 for Fig.15 A partially enlarged structural schematic diagram;

[0045] Fig.17 This is a structural diagram of a 4P molded case circuit breaker.

[0046] Fig.18 A first stereoscopic view of a first embodiment of a drawer in a drawer-type switch cabinet of the present invention;

[0047] Fig.19 A second stereoscopic view of a first embodiment of a drawer in a drawer-type switch cabinet of the present invention;

[0048] Fig. 20 for Fig.19 Explosion diagram of the middle drawer body and the molded case circuit breaker;

[0049] Fig.21 for Fig.18 The main view;

[0050] Fig. 22 It is a schematic diagram of the assembly of multiple drawer bodies and incoming busbars;

[0051] Fig.23 Another schematic diagram of assembling multiple drawer bodies and incoming busbars;

[0052] Fig.24 for Fig.23 The structural diagram after removing the incoming busbar;

[0053] Fig.25 for Fig.24 A schematic diagram of the structure after removing the second partition;

[0054] Fig.26 A perspective view of a second embodiment of a drawer in a drawer-type switch cabinet of the present invention;

[0055] Fig. 27 A three-dimensional diagram of a drawer in a drawer-type switch cabinet in the prior art;

[0056] Fig.28 It is a structural schematic diagram of a drawer in the prior art;

[0057] Fig.29 This is a three-dimensional diagram of the transfer copper busbar.

[0058] Description of reference numerals:

[0059] 1. Circuit breaker body; 2. First conductive member; 3. First connecting plate; 4. Second connecting plate; 5. Third connecting plate; 6. Contact plate; 7. First slot; 8. First panel; 9. First opening; 10. Bump; 11. First stopper; 12. Second opening; 13. Second stopper; 14. Third stopper; 15. Connector; 16. Connector body; 17. Fourth connecting plate; 19. Elastic member; 20. Elastic arm; 21. Second slot; 22. Cover plate; 30. Drawer body; 31. Mounting cavity; 32. Second panel; 33. Third panel; 34. Fourth panel; 35. Bottom plate; 36. Circuit breaker handle; 37. Operation panel; 38. Third opening; 39. First partition; 40. Second partition; 41. Incoming busbar;

[0060] 100. Drawer body; 101. First panel; 102. Second panel; 103. Operating handle; 104. Adapter; 105. Molded case circuit breaker; 106. Circuit breaker handle; 107. Transfer copper bar; 108. Operating panel; 109. First connecting bar; 110. Second connecting bar; 111. Third connecting bar. DETAILED DESCRIPTION

[0061] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0062] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0063] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0065] Example 1

[0066] This embodiment provides a molded case circuit breaker, such as Figure 1-3 As shown, the circuit breaker includes a circuit breaker body 1 , a first conductive member 2 and a cover plate 22 .

[0067] The first conductive member 2 has three parts, such as Figure 1 , 4 As shown in Figure 5, the first conductive member 2 is arranged at the terminal of the circuit breaker body 1 and is spaced apart along the width direction (X-axis direction) of the circuit breaker body. The first conductive member 2 is suitable for being fixedly connected with the plug assembly, and the plug assembly is suitable for being plugged with the busbar. The first conductive member 2 includes a first connecting plate 3, and a second connecting plate 4 and a third connecting plate 5 respectively arranged at both ends of the first connecting plate 3. The first connecting plate 3 extends along the height direction (Z-axis direction) of the circuit breaker body 1. The second connecting plate 4 (along the Y-axis direction) is suitable for being inserted into the inside of the circuit breaker body 1 and is integrally bent and connected with the contact plate 6 inside the circuit breaker body 1. The contact plate 6 is provided with a static contact. The third connecting plate 5 is integrally bent and connected with the first connecting plate 3 and extends along the height direction of the circuit breaker body 1. The two third connecting plates 5 of the two adjacent first conductive members 2 are respectively located in two different vertical planes, thereby increasing the creepage distance between the two adjacent third connecting plates 5 and the two adjacent plug assemblies. In this embodiment, the fastening assembly is a bolt, or a rivet. The first connecting plates 3 of the three first conductive members 2 are all located in the same first vertical plane, and the three third connecting plates 5 are all located in the same second vertical plane. Figure 1 As shown, the width direction of the circuit breaker body 1 extends along the X axis, the length direction extends along the Y axis, and the height direction extends along the Z axis.

[0068] As a convertible embodiment, the three third connecting plates 5 have the same height.

[0069] As a convertible implementation method, Figure 6As shown, the first conductive member 2 only includes a first connecting plate 3 and a second connecting plate 4, and the first connecting plate 3 is suitable for being assembled with a plug-in assembly.

[0070] The circuit breaker body 1 is provided with a first limiting structure suitable for limiting the position of the plug-in assembly when the busbar and the plug-in assembly are plugged in and out. A cover plate 22 is provided on one side of the circuit breaker body 1 and is snap-fitted with the cover plate 22. The cover plate 22 and the circuit breaker body 1 are enclosed to form a receiving cavity suitable for installing the first conductive member 2. The cover plate 22 is provided with a first panel 8 away from the circuit breaker body 1, through which the third connecting plate 5 is extended to be assembled with the plug-in assembly. Figure 2 , 3 As shown in Figures 1 and 16, the first limiting structure includes: four protrusions 10, which are arranged on both side edges of the plug-in assembly; two first blocks 11, which are arranged on both sides of the first opening 9, and the first blocks 11 and the first panel 8 are opposite to form a second slot 21 for the protrusion 10 to be inserted. The first block 11 has a second opening 12 arranged adjacent to it for the protrusion 10 to be inserted into or pass through, and the plug-in assembly has an assembly position where the protrusion 10 abuts against the first block 11, and a disassembly position where the protrusion 10 is separated from the first block 11 and can pass through the second opening 12. The circuit breaker body 1 is provided with three plug-in assemblies, and the three plug-in assemblies are distributed in an oblique line or a herringbone shape. It should be noted that the molded case circuit breaker can be either as follows Fig.13 The 3P circuit breaker shown can also be Fig.17 4P circuit breaker shown.

[0071] Example 2

[0072] This embodiment provides a molded case circuit breaker, such as Figure 7 and 8 As shown, the circuit breaker includes a circuit breaker body 1 , a first conductive member 2 and a cover plate 22 .

[0073] The first conductive member 2 has three parts, such as Figure 1 , 4As shown in Figure 5, the first conductive member 2 is arranged at the terminal of the circuit breaker body 1 and is spaced apart along the width direction (X-axis direction) of the circuit breaker body. The first conductive member 2 is suitable for being fixedly connected with the plug assembly, and the plug assembly is suitable for being plugged with the busbar. The first conductive member 2 includes a first connecting plate 3, and a second connecting plate 4 and a third connecting plate 5 respectively arranged at both ends of the first connecting plate 3. The first connecting plate 3 extends along the height direction (Z-axis direction) of the circuit breaker body 1. The second connecting plate 4 (along the Y-axis direction) is suitable for being inserted into the inside of the circuit breaker body 1 and is integrally bent and connected with the contact plate 6 inside the circuit breaker body 1. The contact plate 6 is provided with a static contact. The third connecting plate 5 is integrally bent and connected with the first connecting plate 3 and extends along the height direction of the circuit breaker body 1. The two third connecting plates 5 of the two adjacent first conductive members 2 are respectively located in two different vertical planes, thereby increasing the creepage distance between the two adjacent third connecting plates 5 and the two adjacent plug assemblies. In this embodiment, the fastening assembly is a bolt, or a rivet. The first connecting plates 3 of the three first conductive members 2 are all located in the same first vertical plane, and the three third connecting plates 5 are all located in the same second vertical plane. Figure 1 As shown, the width direction of the circuit breaker body 1 extends along the X axis, the length direction extends along the Y axis, and the height direction extends along the Z axis.

[0074] As a convertible embodiment, the three third connecting plates 5 have the same height.

[0075] As a convertible implementation method, Figure 6 As shown, the first conductive member 2 only includes a first connecting plate 3 and a second connecting plate 4, and the first connecting plate 3 is suitable for being assembled with a plug-in assembly.

[0076] The circuit breaker body 1 is provided with a second limiting structure suitable for limiting the position of the first conductive member 2 when the busbar and the plug assembly are plugged in and out. A cover plate 22 is provided on one side of the circuit breaker body 1 and is snap-fitted with the cover plate 22. The cover plate 22 and the circuit breaker body 1 are enclosed to form a receiving cavity suitable for installing the first conductive member 2. The cover plate 22 is provided with a first panel 8 away from the circuit breaker body 1, through which the third connecting plate 5 is extended to be assembled with the plug assembly. Figure 7 and 8 As shown, the second limiting structure includes two second stops 13 and two third stops 14, the second stops 13 and the third stops 14 are respectively arranged on both sides of the third connecting plate, the second stops 13 can abut against the first surface of the first conductive member 2 away from the plug assembly, and the third stops 14 abut against the second surface of the first conductive member 2 adjacent to the plug assembly. The circuit breaker body 1 is provided with three plug assemblies, and the three plug assemblies are distributed in an oblique line or a herringbone shape.

[0077] Example 3

[0078] This embodiment provides a molded case circuit breaker, such as Figure 1 and 9 As shown, the circuit breaker includes a circuit breaker body 1 , a first conductive member 2 and a cover plate 22 .

[0079] The first conductive member 2 has three parts, such as Figure 1 , 4 As shown in Figure 5, the first conductive member 2 is arranged at the terminal of the circuit breaker body 1 and is spaced apart along the width direction (X-axis direction) of the circuit breaker body. The first conductive member 2 is suitable for being fixedly connected with the plug assembly, and the plug assembly is suitable for being plugged with the busbar. The first conductive member 2 includes a first connecting plate 3, and a second connecting plate 4 and a third connecting plate 5 respectively arranged at both ends of the first connecting plate 3. The first connecting plate 3 extends along the height direction (Z-axis direction) of the circuit breaker body 1. The second connecting plate 4 (along the Y-axis direction) is suitable for being inserted into the inside of the circuit breaker body 1 and is integrally bent and connected with the contact plate 6 inside the circuit breaker body 1. The contact plate 6 is provided with a static contact. The third connecting plate 5 is integrally bent and connected with the first connecting plate 3 and extends along the height direction of the circuit breaker body 1. The two third connecting plates 5 of the two adjacent first conductive members 2 are respectively located in two different vertical planes, thereby increasing the creepage distance between the two adjacent third connecting plates 5 and the two adjacent plug assemblies. In this embodiment, the fastening assembly is a bolt, or a rivet. The first connecting plates 3 of the three first conductive members 2 are all located in the same first vertical plane, and the three third connecting plates 5 are all located in the same second vertical plane. Figure 1 As shown, the width direction of the circuit breaker body 1 extends along the X axis, the length direction extends along the Y axis, and the height direction extends along the Z axis.

[0080] As a convertible embodiment, the three third connecting plates 5 have the same height.

[0081] As a convertible implementation method, Figure 6 As shown, the first conductive member 2 only includes a first connecting plate 3 and a second connecting plate 4, and the first connecting plate 3 is suitable for being assembled with a plug-in assembly.

[0082] The circuit breaker body 1 is provided with a first limiting structure suitable for limiting the plug-in assembly when the busbar and the plug-in assembly are plugged in and out, and a second limiting structure for limiting the position of the first conductive member 2. A cover plate 22 is provided on one side of the circuit breaker body 1 and is snap-fitted with the cover plate 22. The cover plate 22 and the circuit breaker body 1 are enclosed to form a receiving cavity suitable for installing the first conductive member 2. The cover plate 22 is provided with a first panel 8 away from the circuit breaker body 1, and a first opening 9 is provided for the third connecting plate 5 to extend out and be assembled with the plug-in assembly. The circuit breaker body 1 is provided with three plug-in assemblies, and the three plug-in assemblies are distributed in an oblique line or a herringbone shape.

[0083] like Figure 2 , 3 As shown in Figures 16 and 17, the first limiting structure includes: four protrusions 10, which are arranged on the two side edges of the plug-in assembly; two first stoppers 11, which are arranged on the two sides of the first opening 9, and the first stoppers 11 and the first panel 8 are opposite to form a second slot 21 for inserting the protrusion 10. The first stopper 11 has a second opening 12 arranged adjacent to it, which can be used for inserting or passing through the protrusion 10, and the plug-in assembly has an assembly position where the protrusion 10 abuts against the first stopper 11, and a disassembly position where the protrusion 10 is separated from the first stopper 11 and can pass through the second opening 12.

[0084] like Figure 7 and 8 As shown, the second limiting structure includes two second stops 13 and two third stops 14. The second stops 13 and the third stops 14 are respectively arranged on both sides of the third connecting plate. The second stops 13 can abut against the first surface of the first conductive member 2 away from the plug-in assembly, and the third stops 14 abut against the second surface of the first conductive member 2 adjacent to the plug-in assembly.

[0085] Example 4

[0086] This embodiment provides a plug-in assembly suitable for assembly with a circuit breaker body 1 of a molded case circuit breaker. Figure 9-11 As shown, the plug-in assembly includes a plug-in component 15 and an elastic component 19.

[0087] The plug-in connector 15 comprises a plug-in body 16 and two fourth connecting plates 17 connected to the plug-in body 16. A through hole for the bolt to pass through is formed in the middle of the plug-in body 16, and protrusions 10 extending outward are respectively provided on both sides of the plug-in body 16. A first stopper 11 is provided on the first panel 8 of the cover plate 22, and a second slot 21 for the protrusion 10 to be inserted is formed between the first stopper 11 and the first panel 8; the two fourth connecting plates 17 relatively form a first slot 7 for the busbar to be inserted, and a through hole for the elastic member 19 to pass through is formed at the connection between the fourth connecting plate 17 and the plug-in body 16.

[0088] The elastic member 19 is provided on the plug connector 15, and the elastic member 19 applies an elastic force against the busbar toward the fourth connecting plate 17. In this embodiment, the elastic member 19 is an open ring with a notch, and both sides of the notch of the open ring are respectively provided with elastic arms 20 that elastically resist the corresponding fourth connecting plate 17. The outer side surface of the fourth connecting plate 17 is formed with a groove for inserting the end of the elastic arm 20 and limiting its moving position.

[0089] Example 5

[0090] This embodiment provides a device such as Figure 13-16 As shown, it includes a molded case circuit breaker and a plug-in component assembled with the molded case circuit breaker.

[0091] The molded case circuit breaker comprises a circuit breaker body 1 , a first conductive member 2 and a cover plate 22 .

[0092] The first conductive member 2 has three parts, such as Figure 1 , 4 As shown in Figure 5, the first conductive member 2 is arranged at the terminal of the circuit breaker body 1 and is spaced apart along the width direction (X-axis direction) of the circuit breaker body. The first conductive member 2 is suitable for being fixedly connected with the plug assembly, and the plug assembly is suitable for being plugged with the busbar. The first conductive member 2 includes a first connecting plate 3, and a second connecting plate 4 and a third connecting plate 5 respectively arranged at both ends of the first connecting plate 3. The first connecting plate 3 extends along the height direction (Z-axis direction) of the circuit breaker body 1. The second connecting plate 4 (along the Y-axis direction) is suitable for being inserted into the inside of the circuit breaker body 1 and is integrally bent and connected with the contact plate 6 inside the circuit breaker body 1. The contact plate 6 is provided with a static contact. The third connecting plate 5 is integrally bent and connected with the first connecting plate 3 and extends along the height direction of the circuit breaker body 1. The two third connecting plates 5 of the two adjacent first conductive members 2 are respectively located in two different vertical planes, thereby increasing the creepage distance between the two adjacent third connecting plates 5 and the two adjacent plug assemblies. In this embodiment, the fastening assembly is a bolt, or a rivet. The first connecting plates 3 of the three first conductive members 2 are all located in the same first vertical plane, and the three third connecting plates 5 are all located in the same second vertical plane. Figure 1 As shown, the width direction of the circuit breaker body 1 extends along the X axis, the length direction extends along the Y axis, and the height direction extends along the Z axis.

[0093] As a convertible embodiment, the three third connecting plates 5 have the same height.

[0094] As a convertible implementation method, Figure 6 As shown, the first conductive member 2 only includes a first connecting plate 3 and a second connecting plate 4, and the first connecting plate 3 is suitable for being assembled with a plug-in assembly.

[0095] The circuit breaker body 1 is provided with a first limiting structure suitable for limiting the plug-in assembly when the busbar and the plug-in assembly are plugged in and out, and a second limiting structure for limiting the position of the first conductive member 2. A cover plate 22 is provided on one side of the circuit breaker body 1 and is snap-fitted with the cover plate 22. The cover plate 22 and the circuit breaker body 1 are enclosed to form a receiving cavity suitable for installing the first conductive member 2. The cover plate 22 is provided with a first panel 8 away from the circuit breaker body 1, and a first opening 9 is provided for the third connecting plate 5 to extend out and be assembled with the plug-in assembly. The circuit breaker body 1 is provided with three plug-in assemblies, and the three plug-in assemblies are distributed in an oblique line or a herringbone shape.

[0096] like Figure 2 , 3 As shown in Figures 16 and 17, the first limiting structure includes: four protrusions 10, which are arranged on the two side edges of the plug-in assembly; two first stoppers 11, which are arranged on the two sides of the first opening 9, and the first stoppers 11 and the first panel 8 are opposite to form a second slot 21 for inserting the protrusion 10. The first stopper 11 has a second opening 12 arranged adjacent to it, which can be used for inserting or passing through the protrusion 10, and the plug-in assembly has an assembly position where the protrusion 10 abuts against the first stopper 11, and a disassembly position where the protrusion 10 is separated from the first stopper 11 and can pass through the second opening 12.

[0097] like Figure 7 and 8 As shown, the second limiting structure includes two second stops 13 and two third stops 14. The second stops 13 and the third stops 14 are respectively arranged on both sides of the third connecting plate. The second stops 13 can abut against the first surface of the first conductive member 2 away from the plug-in assembly, and the third stops 14 abut against the second surface of the first conductive member 2 adjacent to the plug-in assembly.

[0098] The plug-in assembly is suitable for assembly with the circuit breaker body 1 of the molded case circuit breaker, such as Figure 10-12 As shown, the plug-in assembly includes a plug-in component 15 and an elastic component 19.

[0099] The plug-in connector 15 comprises a plug-in body 16 and two fourth connecting plates 17 connected to the plug-in body 16. A through hole for the bolt to pass through is formed in the middle of the plug-in body 16, and protrusions 10 extending outward are respectively provided on both sides of the plug-in body 16. A first stopper 11 is provided on the first panel 8 of the cover plate 22, and a second slot 21 for the protrusion 10 to be inserted is formed between the first stopper 11 and the first panel 8; the two fourth connecting plates 17 relatively form a first slot 7 for the busbar to be inserted, and a through hole for the elastic member 19 to pass through is formed at the connection between the fourth connecting plate 17 and the plug-in body 16.

[0100] The elastic member 19 is provided on the plug connector 15, and the elastic member 19 applies an elastic force against the busbar toward the fourth connecting plate 17. In this embodiment, the elastic member 19 is an open ring with a notch, and both sides of the notch of the open ring are respectively provided with elastic arms 20 that elastically resist the corresponding fourth connecting plate 17. The outer side surface of the fourth connecting plate 17 is formed with a groove for inserting the end of the elastic arm 20 and limiting its moving position.

[0101] Example 6

[0102] This embodiment provides a drawer-type switch cabinet, comprising a cabinet body and a drawer arranged in the cabinet body, such as Figure 18-21 As shown, the drawer includes a drawer body 30, a molded case circuit breaker and a plug-in assembly.

[0103] The drawer body 30 has a mounting cavity 31 suitable for mounting a molded case circuit breaker. Fig.18 and 21 As shown, the drawer body 30 has a bottom plate 35, a second panel 32 and a third panel 33 respectively arranged on the front and rear sides of the bottom plate, and two fourth panels 34 respectively arranged on the left and right sides of the bottom plate. The second panel 32, the third panel 33 and the two fourth panels 34 enclose a mounting cavity 31. Fig.19 As shown, the third panel 33 is formed with a third opening 38 for the inlet terminal and the plug-in assembly of the circuit breaker body 1 to extend out of it. It should be noted that, in this embodiment, the width direction of the drawer body extends along the X axis, and the length direction of the drawer body extends along the Y axis, which is the same as the withdrawal direction of the drawer body.

[0104] The molded case circuit breaker comprises a circuit breaker body 1, a first conductive member 2 and a cover plate 22. The length extension direction of the circuit breaker body 1 is the same as the drawer withdrawal direction. In this embodiment, Fig.21 As shown, the circuit breaker body 1 is fixed on the bottom plate 35 on its side, and the operation panel 37 where the circuit breaker handle 36 is located is arranged toward the fourth panel 34 .

[0105] The first conductive member 2 has three parts, such as Figure 1 , 4As shown in Figure 5, the first conductive member 2 is arranged at the terminal of the circuit breaker body 1 and is spaced apart along the width direction (X-axis direction) of the circuit breaker body. The first conductive member 2 is suitable for being fixedly connected with the plug assembly, and the plug assembly is suitable for being plugged with the busbar. The first conductive member 2 includes a first connecting plate 3, and a second connecting plate 4 and a third connecting plate 5 respectively arranged at both ends of the first connecting plate 3. The first connecting plate 3 extends along the height direction (Z-axis direction) of the circuit breaker body 1. The second connecting plate 4 (along the Y-axis direction) is suitable for being inserted into the inside of the circuit breaker body 1 and is integrally bent and connected with the contact plate 6 inside the circuit breaker body 1. The contact plate 6 is provided with a static contact. The third connecting plate 5 is integrally bent and connected with the first connecting plate 3 and extends along the height direction of the circuit breaker body 1. The two third connecting plates 5 of the two adjacent first conductive members 2 are respectively located in two different vertical planes, thereby increasing the creepage distance between the two adjacent third connecting plates 5 and the two adjacent plug assemblies. In this embodiment, the fastening assembly is a bolt, or a rivet. The first connecting plates 3 of the three first conductive members 2 are all located in the same first vertical plane, and the three third connecting plates 5 are all located in the same second vertical plane. Figure 1 As shown, the width direction of the circuit breaker body 1 extends along the X axis, the length direction extends along the Y axis, and the height direction extends along the Z axis.

[0106] As a convertible embodiment, the three third connecting plates 5 have the same height.

[0107] As a convertible implementation method, Figure 6 As shown, the first conductive member 2 only includes a first connecting plate 3 and a second connecting plate 4, and the first connecting plate 3 is suitable for being assembled with a plug-in assembly.

[0108] The circuit breaker body 1 is provided with a first limiting structure suitable for limiting the plug-in assembly when the incoming busbar 41 is plugged in and out of the plug-in assembly, and a second limiting structure for limiting the position of the first conductive member 2. A cover plate 22 is provided on one side of the circuit breaker body 1 and is snap-fitted therewith. The cover plate 22 and the circuit breaker body 1 are enclosed to form a receiving cavity suitable for installing the first conductive member 2. The cover plate 22 is provided on a first panel 8 away from the circuit breaker body 1, through which the third connecting plate 5 extends to be assembled with the plug-in assembly. The circuit breaker body 1 is provided with three plug-in assemblies, which are distributed in an oblique line or a herringbone shape. A partition suitable for separating two adjacent plug-in assemblies is formed on the outer side of the first panel 8. In this embodiment, the incoming end of the circuit breaker body 1 includes the cover plate 22 and the first conductive member 2.

[0109] like Figure 2 , 3As shown in Figures 16 and 17, the first limiting structure includes: four protrusions 10, which are arranged on the two side edges of the plug-in assembly; two first stoppers 11, which are arranged on the two sides of the first opening 9, and the first stoppers 11 and the first panel 8 are opposite to form a second slot 21 for inserting the protrusion 10. The first stopper 11 has a second opening 12 arranged adjacent to it, which can be used for inserting or passing through the protrusion 10, and the plug-in assembly has an assembly position where the protrusion 10 abuts against the first stopper 11, and a disassembly position where the protrusion 10 is separated from the first stopper 11 and can pass through the second opening 12.

[0110] like Figure 7 and 8 As shown, the second limiting structure includes two second stops 13 and two third stops 14. The second stops 13 and the third stops 14 are respectively arranged on both sides of the third connecting plate. The second stops 13 can abut against the first surface of the first conductive member 2 away from the plug-in assembly, and the third stops 14 abut against the second surface of the first conductive member 2 adjacent to the plug-in assembly.

[0111] The plug-in assembly is suitable for assembly with the circuit breaker body 1 of the molded case circuit breaker, such as Figure 10-12 As shown, the plug-in assembly includes a plug-in component 15 and an elastic component 19.

[0112] The plug-in connector 15 comprises a plug-in body 16 and two fourth connecting plates 17 connected to the plug-in body 16. A through hole for a bolt to pass through is formed in the middle of the plug-in body 16, and protrusions 10 extending outward are respectively provided on both sides of the plug-in body 16. A first stopper 11 is provided on the first panel 8 of the cover plate 22, and a second slot 21 for inserting the protrusion 10 is formed between the first stopper 11 and the first panel 8; the two fourth connecting plates 17 relatively form a first slot 7 for inserting the incoming busbar 41, and a through hole for the elastic member 19 to pass through is formed at the connection between the fourth connecting plate 17 and the plug-in body 16.

[0113] The elastic member 19 is provided on the plug connector 15, and the elastic member 19 applies an elastic force to the fourth connecting plate 17 to resist the incoming busbar 41. In this embodiment, the elastic member 19 is an open ring with a notch, and both sides of the notch of the open ring are respectively provided with elastic arms 20 that elastically resist the corresponding fourth connecting plate 17. The outer side surface of the fourth connecting plate 17 is formed with a groove for inserting the end of the elastic arm 20 and limiting its moving position.

[0114] like Figure 22-24As shown in FIG. 1 , a first partition 39 and a second partition 40 are provided between two adjacent plug-in assemblies, and the first partition 39 extends along the height direction of the drawer body 30. The second partition 40 extends along the length direction of the drawer body 30. It should be noted that, in this embodiment, only the following may be provided between two adjacent plug-in assemblies: Fig.25 The first partition plate 39 is shown, or only the second partition plate 40 is provided.

[0115] Example 7

[0116] This embodiment provides a drawer-type switch cabinet, comprising a cabinet body and a drawer arranged in the cabinet body, such as Fig.26 As shown, the drawer includes a drawer body 30, a plug-in assembly and a molded case circuit breaker.

[0117] The drawer body 30 has an installation cavity 31 suitable for installing a molded case circuit breaker. The drawer body 30 has a bottom plate 35, a second panel 32 and a third panel 33 arranged on the front and rear sides of the bottom plate, and two fourth panels 34 arranged on the left and right sides of the bottom plate. The second panel 32, the third panel 33 and the two fourth panels 34 enclose the installation cavity 31, and the third panel 33 is formed with a third opening for the inlet terminal of the circuit breaker body 1 and the plug-in assembly to extend out of it. It should be noted that in this embodiment, the width direction of the drawer body extends along the X-axis, and the length direction of the drawer body extends along the Y-axis, which is the same as the withdrawal direction of the drawer body.

[0118] The molded case circuit breaker comprises a circuit breaker body 1, a first conductive member 2 and a cover plate 22. The length extension direction of the circuit breaker body 1 is the same as the drawer withdrawal direction. In this embodiment, Fig.26 As shown, the circuit breaker body 1 is upright and fixed on the bottom plate 35 , and the operation panel 37 where the circuit breaker handle 36 is located is arranged toward the top opening of the installation cavity 31 .

[0119] The first conductive member 2 has three parts, such as Figure 1 , 4As shown in Figure 5, the first conductive member 2 is arranged at the terminal of the circuit breaker body 1 and is spaced apart along the width direction (X-axis direction) of the circuit breaker body. The first conductive member 2 is suitable for being fixedly connected with the plug assembly, and the plug assembly is suitable for being plugged with the busbar. The first conductive member 2 includes a first connecting plate 3, and a second connecting plate 4 and a third connecting plate 5 respectively arranged at both ends of the first connecting plate 3. The first connecting plate 3 extends along the height direction (Z-axis direction) of the circuit breaker body 1. The second connecting plate 4 (along the Y-axis direction) is suitable for being inserted into the inside of the circuit breaker body 1 and is integrally bent and connected with the contact plate 6 inside the circuit breaker body 1. The contact plate 6 is provided with a static contact. The third connecting plate 5 is integrally bent and connected with the first connecting plate 3 and extends along the height direction of the circuit breaker body 1. The two third connecting plates 5 of the two adjacent first conductive members 2 are respectively located in two different vertical planes, thereby increasing the creepage distance between the two adjacent third connecting plates 5 and the two adjacent plug assemblies. In this embodiment, the fastening assembly is a bolt, or a rivet. The first connecting plates 3 of the three first conductive members 2 are all located in the same first vertical plane, and the three third connecting plates 5 are all located in the same second vertical plane. Figure 1 As shown, the width direction of the circuit breaker body 1 extends along the X axis, the length direction extends along the Y axis, and the height direction extends along the Z axis.

[0120] As a convertible embodiment, the three third connecting plates 5 have the same height.

[0121] As a convertible implementation method, Figure 6 As shown, the first conductive member 2 only includes a first connecting plate 3 and a second connecting plate 4, and the first connecting plate 3 is suitable for being assembled with a plug-in assembly.

[0122] The circuit breaker body 1 is provided with a first limiting structure suitable for limiting the plug-in assembly when the incoming busbar 41 is plugged in and out of the plug-in assembly, and a second limiting structure for limiting the position of the first conductive member 2. A cover plate 22 is provided on one side of the circuit breaker body 1 and is snap-fitted therewith. The cover plate 22 and the circuit breaker body 1 are enclosed to form a receiving cavity suitable for installing the first conductive member 2. The cover plate 22 is provided on a first panel 8 away from the circuit breaker body 1, through which the third connecting plate 5 extends to be assembled with the plug-in assembly. The circuit breaker body 1 is provided with three plug-in assemblies, which are distributed in an oblique line or a herringbone shape. A partition suitable for separating two adjacent plug-in assemblies is formed on the outer side of the first panel 8. In this embodiment, the incoming end of the circuit breaker body 1 includes the cover plate 22 and the first conductive member 2.

[0123] like Figure 2 , 3As shown in Figures 16 and 17, the first limiting structure includes: four protrusions 10, which are arranged on the two side edges of the plug-in assembly; two first stoppers 11, which are arranged on the two sides of the first opening 9, and the first stoppers 11 and the first panel 8 are opposite to form a second slot 21 for inserting the protrusion 10. The first stopper 11 has a second opening 12 arranged adjacent to it, which can be used for inserting or passing through the protrusion 10, and the plug-in assembly has an assembly position where the protrusion 10 abuts against the first stopper 11, and a disassembly position where the protrusion 10 is separated from the first stopper 11 and can pass through the second opening 12.

[0124] like Figure 7 and 8 As shown, the second limiting structure includes two second stops 13 and two third stops 14. The second stops 13 and the third stops 14 are respectively arranged on both sides of the third connecting plate. The second stops 13 can abut against the first surface of the first conductive member 2 away from the plug-in assembly, and the third stops 14 abut against the second surface of the first conductive member 2 adjacent to the plug-in assembly.

[0125] The plug-in assembly is suitable for assembly with the circuit breaker body 1 of the molded case circuit breaker, such as Figure 10-12 As shown, the plug-in assembly includes a plug-in component 15 and an elastic component 19.

[0126] The plug-in connector 15 comprises a plug-in body 16 and two fourth connecting plates 17 connected to the plug-in body 16. A through hole for a bolt to pass through is formed in the middle of the plug-in body 16, and protrusions 10 extending outward are respectively provided on both sides of the plug-in body 16. A first stopper 11 is provided on the first panel 8 of the cover plate 22, and a second slot 21 for inserting the protrusion 10 is formed between the first stopper 11 and the first panel 8; the two fourth connecting plates 17 relatively form a first slot 7 for inserting the incoming busbar 41, and a through hole for the elastic member 19 to pass through is formed at the connection between the fourth connecting plate 17 and the plug-in body 16.

[0127] The elastic member 19 is provided on the plug connector 15, and the elastic member 19 applies an elastic force to the fourth connecting plate 17 to resist the incoming busbar 41. In this embodiment, the elastic member 19 is an open ring with a notch, and both sides of the notch of the open ring are respectively provided with elastic arms 20 that elastically resist the corresponding fourth connecting plate 17. The outer side surface of the fourth connecting plate 17 is formed with a groove for inserting the end of the elastic arm 20 and limiting its moving position.

[0128] like Figure 22-24As shown in FIG. 1 , a first partition 39 and a second partition 40 are provided between two adjacent plug-in assemblies, and the first partition 39 extends along the height direction of the drawer body 30. The second partition 40 extends along the length direction of the drawer body 30. It should be noted that, in this embodiment, only the following may be provided between two adjacent plug-in assemblies: Fig.25 The first partition plate 39 is shown, or only the second partition plate 40 is provided.

[0129] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A drawer-type switch cabinet, comprising a cabinet body and a drawer arranged in the cabinet body, characterized in that: The drawer comprises: The drawer body (30) has a mounting cavity (31) suitable for mounting a molded case circuit breaker; A molded case circuit breaker comprises a circuit breaker body (1), and a plurality of first conductive members (2) arranged on one side of an incoming line end of the circuit breaker body (1), wherein the length extension direction of the circuit breaker body (1) is the same as the withdrawal direction of the drawer, and the incoming line end of the circuit breaker body (1) can be extended out of the drawer body (30), and the plurality of first conductive members (2) are distributed at intervals along the width direction of the circuit breaker body (1), and the first conductive members (2) comprise: a first connecting plate (3) extending along the height direction of the circuit breaker body (1) and suitable for being assembled with a plug-in assembly; a second connecting plate (4) connected to one end of the first connecting plate (3) and extending along the length direction of the circuit breaker body (1), and the second connecting plate (4) is suitable for being connected to a contact plate (6) inside the circuit breaker body (1); A plurality of plug-in assemblies are arranged on one side of the incoming line end of the circuit breaker body (1) and extend out of the drawer body (30); the plug-in assemblies are connected to the first conductive member (2) and are suitable for plugging with the incoming line busbar (41).

2. The drawer-type switch cabinet according to claim 1, characterized in that: The other end of the first connecting plate (3) away from the second connecting plate (4) is provided with a third connecting plate (5) bent and connected thereto, the third connecting plate (5) extending along the height direction of the circuit breaker body (1) and assembled with the plug-in assembly via a fastening assembly, and the two third connecting plates (5) of two adjacent first conductive members (2) are respectively located in two different vertical planes.

3. The drawer-type switch cabinet according to claim 1 or 2, characterized in that: The circuit breaker body (1) is provided with a first limiting structure suitable for limiting the position of the plug-in assembly when the incoming busbar (41) is plugged in or out of the plug-in assembly, and / or a second limiting structure for limiting the position of the first conductive member (2).

4. The drawer-type switch cabinet according to claim 3, characterized in that: A first opening (9) is provided on a first panel (8) on one side of the circuit breaker body (1) for the first conductive member (2) to extend out so as to be assembled with the plug-in assembly, and the first limiting structure comprises: At least one protrusion (10) is arranged on the edge of the plug-in assembly, and the protrusion (10) is suitable for abutting against the first panel (8) when the incoming busbar (41) is inserted.

5. The drawer-type switch cabinet according to claim 3, characterized in that: The first limiting structure also includes: At least one first stopper (11) is arranged on a side of the first panel (8) away from the protrusion (10), and the first stopper (11) is suitable for abutting against the protrusion when the incoming busbar (41) is pulled out.

6. The drawer-type switch cabinet according to claim 5, characterized in that: The first stopper (11) has a second opening (12) arranged adjacent thereto and capable of being inserted into or passed through by the protrusion (10); the plug-in assembly has an assembly position where the protrusion (10) abuts against the first stopper (11), and a disassembly position where the protrusion (10) is separated from the first stopper (11) and can be passed through the second opening (12).

7. The drawer-type switch cabinet according to claim 6, characterized in that: At least one protrusion (10) is respectively provided on both sides of the plug-in assembly, and the first panel (8) is provided with the first stopper (11) corresponding to and abutting against the protrusion (10).

8. The drawer-type switch cabinet according to claim 4, characterized in that: The second limiting structure comprises: At least one second stopper (13) is arranged on the circuit breaker body (1) or the first panel (8) and can abut against a first surface of the first conductive member (2) away from the plug-in assembly.

9. The drawer-type switch cabinet according to claim 4 or 8, characterized in that: The second limiting structure also includes: At least one third stopper (14) is arranged on the circuit breaker body (1) or the first panel (8) and can abut against the second surface of the first conductive member (2) adjacent to the plug-in assembly.

10. The drawer-type switch cabinet according to claim 1, characterized in that: A first partition (39) and / or a second partition (40) is provided between two adjacent plug-in assemblies. The first partition (39) extends along the height direction of the drawer body (30), and the second partition (40) extends along the length direction of the drawer body (30).

11. The drawer-type switch cabinet according to claim 1, characterized in that: The plug-in assembly comprises: A plug connector (15) comprising a plug body (16) and two fourth connecting plates (17) connected to the plug body (16), wherein the two fourth connecting plates (17) are opposed to each other to form a first slot (7) for inserting an incoming busbar (41); An elastic member (19) is provided on the plug connector (15), and the elastic member (19) applies an elastic force to the fourth connecting plate (17) to resist the incoming busbar (41).

12. The drawer-type switch cabinet according to claim 11, characterized in that: The elastic member (19) is an open ring with a notch, and elastic arms (20) are respectively provided on both sides of the notch of the open ring to elastically abut against the corresponding fourth connecting plate (17).

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