A cover plate assembly of an electrical cabinet and an electrical cabinet

Abstract

The application relates to a cover plate assembly of an electrical cabinet and the electrical cabinet, wherein the cover plate assembly of the electrical cabinet comprises a cover plate, a fixing part and a connecting piece, the fixing part is used for being connected with a cabinet body of the electrical cabinet; the cover plate is provided with a first plug-in part, the first plug-in part is provided with a first guide matching surface, the fixing part is provided with a second plug-in part, the second plug-in part is provided with a second guide matching surface, the cover plate and the fixing part are relatively moved to a state where the first guide matching surface and the second guide matching surface abut, the cover plate blocks an opening of the cabinet body, the first plug-in part and the second plug-in part are plug-in connected, and the cover plate is limited to move along a first direction and a second direction relative to the fixing part; the cover plate is connected with at least one of the fixing part and the cabinet body through the connecting piece, so as to limit the cover plate to move along a third direction relative to the fixing part; the first direction, the second direction and the third direction are perpendicular to each other. The scheme can simplify the dismounting operation of the cover plate assembly, save time and effort, is high in efficiency, and is convenient for maintenance and replacement of related parts.

Description

Technical Field

[0001] This application relates to the field of electrical cabinet technology, specifically to a cover plate assembly for an electrical cabinet and an electrical cabinet. Background Technology

[0002] Electrical cabinets play a vital role in power systems. Taking distribution cabinets as an example, they are used to distribute electrical energy, control circuits, and protect electrical equipment.

[0003] The air inlet and outlet of the power distribution cabinet are equipped with cover plate assemblies. The cover plate assemblies can cover the openings and shield the power distribution cabinet. Conventional cover plate assemblies are fixed to the cabinet by multiple fasteners set along the circumference. When disassembling and assembling, each fastener needs to be disassembled and installed one by one. The operation is complicated, time-consuming, labor-intensive and inefficient, which is not conducive to maintenance and replacement of related parts. Utility Model Content

[0004] The purpose of this application is to provide a cover plate assembly and an electrical cabinet for an electrical cabinet, which can simplify the disassembly and assembly of the cover plate assembly, save time and effort, increase efficiency, and facilitate maintenance and replacement of related parts.

[0005] This application provides a cover assembly for an electrical cabinet, including a cover plate, a fixing part, and a connector. The fixing part is used to connect to the cabinet body of the electrical cabinet. The cover plate has a first insertion part with a first guide mating surface, and the fixing part has a second insertion part with a second guide mating surface. When the cover plate and the fixing part move relative to each other to abutting the first and second guide mating surfaces, the cover plate blocks the opening of the cabinet body. The first and second insertion parts are inserted and connected, restricting the cover plate from moving relative to the fixing part along a first direction and a second direction. The cover plate is connected to at least one of the fixing part and the cabinet body via the connector to restrict the cover plate from moving relative to the fixing part along a third direction. The first direction, the second direction, and the third direction are perpendicular to each other. The third direction is the insertion direction of the first and second insertion parts, and the second direction is the axial direction of the opening.

[0006] In some embodiments, the first plug-in portion is provided with a plug-in protrusion, the second plug-in portion is provided with a plug-in groove, the axial direction of the plug-in groove is arranged along the third direction, the end wall of the plug-in groove is provided with a bending structure that extends outward from the plug-in groove, the side wall of the bending structure facing the inside of the plug-in groove is provided with a second guide mating surface, and the surface of the plug-in protrusion is provided with the first guide mating surface.

[0007] Alternatively, the first insertion part is provided with an insertion groove, the second insertion part is provided with an insertion protrusion, the axial direction of the insertion groove is arranged along the third direction, the end wall of the insertion groove is provided with a bending structure that extends outward from the insertion groove, the side wall of the bending structure facing the inside of the insertion groove is provided with a first guide mating surface, and the surface of the insertion protrusion is provided with a second guide mating surface.

[0008] In some embodiments, the insertion slot is provided with a fixed groove wall; the insertion protrusion is also fixedly connected to a fixing member, wherein one of the fixed groove wall and the fixing member is connected to the cover plate, and the other is connected to the fixing part.

[0009] In some embodiments, both the first guide mating surface and the second guide mating surface are wedge-shaped surfaces.

[0010] In some embodiments, the cover plate has two ends forming first ends along a first direction, and each first end is provided with the first insertion portion.

[0011] In some embodiments, the cover plate is further provided with connecting ears, which are connected to the fixing part or the cabinet body via the connector.

[0012] In some embodiments, the connecting ear is located at the rear end of the cover plate along the third direction, or the connecting ear is located at the first end.

[0013] In some embodiments, the fixing part is a fixing plate, the fixing plate has a ventilation opening, and when the fixing plate is fixed to the cabinet, the ventilation opening is connected to the opening; the fixing plate is provided with a second insertion part.

[0014] In some embodiments, the cover plate assembly further includes a first baffle, a second baffle, and a third baffle; the first baffle is disposed on the side wall of the cover plate facing the fixing plate, and the second baffle and the third baffle are disposed on the side wall of the fixing plate facing the cover plate; the second baffle, the first baffle, and the third baffle are arranged sequentially at intervals from the side facing the vent to the side away from the vent; the first baffle and the third baffle partially overlap in a second direction, and the second baffle and the third baffle partially overlap in a second direction.

[0015] In some embodiments, the cover assembly further includes a first cotton layer disposed between the first baffle and the cover.

[0016] In some embodiments, the first baffle is further provided with a first flange structure on one side facing the cover plate, and the first cotton layer is sandwiched between the first flange structure and the cover plate.

[0017] In some embodiments, the fixing plate is provided with a second flange structure along the circumference of the vent, and the second flange structure forms the second baffle.

[0018] In some embodiments, the third baffle is further provided with a water guide groove on the side facing the fixed plate, and the water guide groove is located on the side of the third baffle facing the second baffle.

[0019] In some embodiments, the cover assembly further includes a second cotton layer disposed on the side of the third baffle away from the second baffle.

[0020] In some embodiments, the cover plate assembly further includes a filter section, the filter section including a wire mesh; the cover plate is also provided with a side plate in the circumferential direction, the side plate extending toward one side of the fixing part, the filter section is provided on the side plate, and the side plate with the filter section is also provided with filter holes.

[0021] In some embodiments, the side plate is further provided with a plug-in structure, which is a plug hole or a slot. The filter part is plugged into the plug-in structure and connected to the side plate by fasteners.

[0022] In some embodiments, the filter section further includes a frame section, which is a frame that is arranged circumferentially along the wire mesh; or, the frame section is a filter plate that is provided with louvered perforations.

[0023] This application also provides an electrical cabinet, including a cabinet body and a cover assembly as described above, wherein the cabinet body has an opening.

[0024] The cover assembly and electrical cabinet provided in this application have the following technical advantages:

[0025] The cover assembly closes to the opening of the cabinet. When it is necessary to disassemble or replace the components inside the cabinet for maintenance or other operations, the connector can be disassembled first to release the connection between the connector and the fixing part or between the cover and the cabinet. Then, the cover is moved backward relative to the fixing part in a third direction, so that the first and second plug-in parts are disengaged. At this time, there is no longer any limit between the cover and the fixing part, and the cover can be removed. After the replacement or maintenance operation is completed, the cover can be reinstalled.

[0026] The fixing part is directly fixed to the opening of the cabinet. The fixing part is located around the opening. During routine maintenance and replacement, the fixing part does not need to be disassembled. Only the cover plate needs to be removed and installed. The cover plate and the fixing part can be connected and engaged by moving them relative to each other in a third direction through the first and second plug-in parts. Therefore, during the disassembly and assembly process, only the connecting parts need to be operated to connect and disconnect the connecting parts, which can achieve quick disassembly and assembly. The operation is convenient and efficient.

[0027] Compared to the conventional method of connecting the cover plate assembly to the cabinet opening side with multiple spaced bolts, this cover plate assembly can effectively simplify disassembly and assembly, save time and effort, increase efficiency, and facilitate maintenance and replacement of related parts.

[0028] The first and second insertion parts move relative to each other in a third direction to the insertion state, and the first and second guide mating surfaces abut against each other to limit the insertion action between them at the end of the insertion stroke. This allows the cover plate to be restricted from moving forward relative to the fixed part in a third direction in the insertion state, and the cover plate can just cover the opening. After being connected by the connector, the stability of the insertion fit can be effectively improved.

[0029] The first guide mating surface and the second guide mating surface can also provide guidance for the insertion and mating of the first insertion part and the second insertion part, so that the first insertion part and the second insertion part can be inserted smoothly. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the electrical cabinet provided in the embodiments of this application;

[0031] Figure 2 This is a structural diagram of the cover plate assembly of the electrical cabinet in the state where the cover plate and the fixing part are detached;

[0032] Figure 3 This is an exploded view of the cover plate assembly;

[0033] Figure 4 This is a structural diagram of the first and second plug-in parts in the plugged-in state;

[0034] Figure 5 This is a schematic diagram of the structure of the first connector;

[0035] Figure 6 This is a schematic diagram of the structure of the second connector;

[0036] Figure 7 This is a side view of the cover plate assembly;

[0037] Figure 8 yes Figure 7 AA section view in the middle;

[0038] Figure 9 This is an exploded view of the cover plate assembly of yet another embodiment;

[0039] Figure 10 This is an exploded view of the cover plate assembly in another embodiment;

[0040] Figure 11 This is a structural schematic diagram of the fixing part;

[0041] Figure 12 This is a top view of the cover plate assembly;

[0042] Figure 13 yes Figure 12 BB section view in the middle;

[0043] Figure 14 This is an embodiment Figure 12 CC section view in the middle;

[0044] Figure 15 This is yet another embodiment. Figure 12 CC section view in the middle;

[0045] Figure 16 This is a schematic diagram of the first baffle.

[0046] Figure 17 This is a schematic diagram of the third baffle.

[0047] Appendix Figures 1-17 The reference numerals in the attached figures are explained as follows:

[0048] 10 cover plate assembly; 20 cabinet body, 210 opening;

[0049] 1 Cover plate, 11 First insertion part, 111 First wedge-shaped surface, 112 Insertion protrusion, 113 Fixing member, 12 Side plate, 121 Filter hole, 13 First end, 14 Connecting ear, 141 Connecting hole, 15 Insertion structure, 16 Connecting plate, 17 Rear end.

[0050] 2 Fixing part, 21 Second insertion part, 211 Second wedge-shaped surface, 212 Insertion groove, 213 Bending structure, 214 Fixing groove wall, 22 Fixing plate, 23 Ventilation opening, 24 Second flange structure, 25 Second end;

[0051] 3 First baffle, 31 First flange structure;

[0052] 4. Second baffle;

[0053] 5. Third baffle, 51. Water guide channel;

[0054] 6. Second cotton layer;

[0055] 7 Filter section, 71 wire mesh, 72 skeleton section, 721 frame, 722 filter plate, 723 perforated louvers;

[0056] 8 connectors;

[0057] 9. First cotton layer. Detailed Implementation

[0058] To enable those skilled in the art to better understand the technical solutions of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0059] Electrical cabinets play a crucial role in power systems. Taking distribution cabinets as an example, they are used to distribute electrical energy, control circuits, and protect electrical equipment. Distribution cabinets have cover assemblies 10 at their air inlets and outlets 210. These cover assemblies 10 allow for ventilation and provide shelter for the distribution cabinet. Conventionally, the cover assembly 10 is fixed to the cabinet body 20 by multiple fasteners arranged circumferentially. Disassembly and assembly require individual fastener removal and installation, which is complex, time-consuming, labor-intensive, and inefficient, hindering maintenance and replacement of related components.

[0060] This application provides a cover plate assembly 10 for an electrical cabinet and an electrical cabinet, wherein, as shown in the embodiments, Figure 1 and Figure 2 As shown, the electrical cabinet includes a cabinet body 20 and a cover assembly 10. The cabinet body 20 of the electrical cabinet has an opening 210, and the cover assembly 10 is located at the opening 210 to provide protection for the electrical components inside the electrical cabinet while also enabling ventilation to meet the heat dissipation requirements of the cabinet body 20.

[0061] like Figure 3 As shown, the cover assembly 10 includes a cover 1 and a fixing part 2. The fixing part 2 is used to fix it to the cabinet 20. When the cover 1 and the fixing part 2 are fixed, they can cover the opening 210 of the cabinet 20.

[0062] The cover plate 1 is provided with a first insertion part 11, and the first insertion part 11 is provided with a first guide mating surface 111. The fixing part 2 is provided with a second insertion part 21, and the second insertion part 21 is provided with a second guide mating surface 211. The cover plate 1 can move relative to the fixing part 2 in a third direction until the first guide mating surface 111 and the second guide mating surface 211 abut against each other. The cover plate 1 covers the opening 210 of the cabinet 20. At the same time, the first insertion part 11 and the second insertion part 21 reach the insertion state. The cover plate 1 is connected by the insertion of the first insertion part 11 and the second insertion part 21, and the movement of the cover plate 1 relative to the fixing part 2 in a first direction or a second direction is restricted.

[0063] The cover plate 1 is connected to the fixing part 2 via the connector 8, or the cover plate 1 is connected to the cabinet 20 via the connector 8. Alternatively, the cover plate 1 can be connected to both the fixing part 2 and the cabinet 20 via the connector 8. Since the fixing part 2 is fixed to the cabinet 20, the connector 8 can restrict the cover plate 1 from moving relative to the fixing part 2 in a third direction when connected. This third direction is perpendicular to the first and second directions mentioned above. When the cover plate 1 is connected to at least one of the fixing part 2 and the cabinet 20 via the connector 8, the cover plate assembly 10 is fixed to the cabinet 20 as a whole and covers the opening 210 with good stability.

[0064] In this embodiment, the second direction is the axial direction of the opening 210, and the third direction is the insertion direction of the first insertion part 11 and the second insertion part 21.

[0065] The cover plate assembly 10 covers the opening 210 of the cabinet 20. When it is necessary to disassemble the components inside the cabinet 20 for maintenance, replacement or other operations, the connector 8 can be disassembled first to release the connection between the cover plate 1 and the fixing part 2 or between the cover plate 1 and the cabinet 20. Then, the cover plate 1 is moved backward relative to the fixing part 2 in a third direction, so that the first insertion part 11 and the second insertion part 21 are disengaged. At this time, there is no longer any limit between the cover plate 1 and the fixing part 2, and the cover plate 1 can be removed. After the replacement or maintenance operation is completed, the cover plate 1 can be reinstalled.

[0066] The fixing part 2 is directly fixed to the opening 210 of the cabinet 20. The fixing part 2 is located on the periphery of the opening 210. During routine maintenance, replacement and other operations, the fixing part 2 does not need to be disassembled. Only the cover plate 1 needs to be removed and installed. The cover plate 1 and the fixing part 2 can be connected and engaged by moving relative to each other in a third direction through the first plug-in part 11 and the second plug-in part 21. Therefore, during the disassembly and assembly operation, only the connecting part 8 needs to be operated to connect and disconnect the connecting part 8, which can achieve quick disassembly and assembly operation. The operation is convenient and efficient.

[0067] Compared to the conventional method of connecting the cover plate assembly 10 to the cabinet 20 opening 210 side with multiple spaced bolts, the cover plate assembly 10 provided in this embodiment can effectively simplify the disassembly and assembly operation, save time and effort, increase efficiency, and facilitate maintenance and replacement of related parts.

[0068] The location of the opening 210 of the cabinet 20 is not limited. It can be located at the top of the cabinet 20, or at the upper or lower part of the side wall of the cabinet 20. The third direction can be along the front-back direction, left-right direction, or height direction of the cabinet. For example, if the third direction is the front-back direction, the first direction is the left-right direction of the cabinet 20, and the second direction is the height direction of the cabinet 20, the cover plate 1 and the fixing part 2 are arranged along the second direction. The cover plate 1 can move forward relative to the fixing part 2 along the third direction to engage with the first insertion part 11 and the second insertion part 21. The cover plate 1 can also move backward relative to the fixing part 2 to disengage from the first insertion part 11 and the second insertion part 21.

[0069] The first insertion part 11 and the second insertion part 21 move relative to each other in a third direction to the insertion state. The first guide mating surface 111 and the second guide mating surface 211 abut against each other to limit the insertion action between them at the end of the insertion stroke. In the insertion state, the cover plate 1 can be restricted from moving forward relative to the fixed part 2 in a third direction, and the cover plate 1 can just cover the opening 210. After being connected by the connector 8, the stability of the insertion fit can be effectively improved.

[0070] The first guide mating surface 111 and the second guide mating surface 211 can also provide guidance for the insertion and mating of the first insertion part 11 and the second insertion part 21, so that the first insertion part 11 and the second insertion part 21 can be smoothly inserted.

[0071] The specific structure of the first insertion part 11 and the second insertion part 21 is not limited. In this embodiment, it can be as follows: Figure 4 , Figure 5 and Figure 6 As shown, the first insertion part 11 is provided with an insertion protrusion 112, and the second insertion part 21 is provided with an insertion groove 212. The axial direction of the insertion groove 212 forms the aforementioned third direction. The insertion protrusion 112 can be inserted into the insertion groove 212 from one axial end of the insertion groove 212. The end wall 2121 of the insertion groove 212 is provided with a bending structure 213 that extends outward from the insertion groove 212. The inner wall surface of the bending structure 213 (i.e., the side wall facing the insertion groove 212) is provided with the aforementioned second guide mating surface 211, and the surface of the insertion protrusion 112 is provided with the aforementioned first guide mating surface 111.

[0072] Alternatively, the first insertion part 11 may be provided with an insertion groove 212, the second insertion part 21 may be provided with an insertion protrusion 112, the inner wall of the bending structure 213 of the insertion groove 212 may be provided with the aforementioned first guide mating surface 111, and the surface of the insertion protrusion 112 may be provided with the aforementioned second guide mating surface 211.

[0073] The insertion connection is achieved by the cooperation of the insertion protrusion 112 and the insertion slot 212, which simplifies the overall structure and facilitates the insertion operation.

[0074] Of course, in this embodiment, the two plug-in parts may also be provided with plug-in slots 212 respectively. The openings of the plug-in slots 212 of the two plug-in parts are opposite and the width direction is perpendicular. In the plug-in state, the bottom of one plug-in slot 212 can be located in the other plug-in slot 212 to achieve stable plug-in.

[0075] Of course, in the first insertion part 11 and the second insertion part 21, one is provided with an insertion protrusion 112 and the other is provided with an insertion hole. The insertion protrusion 112 can be an insertion protrusion or a shaft-like component. The end of the insertion hole is provided with a conical surface structure in the circumferential direction. The conical surface structure can form the first guide mating surface 111 and the second guide mating surface 211 mentioned above.

[0076] like Figure 5 and Figure 6 The first insertion part 11 and the second insertion part 21 shown can be formed by processing sheet metal, which helps to save costs and improve structural strength and insertion stability.

[0077] like Figure 5 and Figure 6 As shown, the insertion groove 212 is provided with a fixed groove wall 214, and the insertion protrusion 112 is also connected to a fixing member 113. Of the fixed groove wall 214 and the fixing member 113, one is connected to the cover plate 1, and the other is connected to the fixing part 2.

[0078] It can be like Figure 4 , Figure 5 and Figure 6 As shown, the first insertion part 11 is provided with a fixing member 113 and an insertion protrusion 112 that are fixed to each other. The fixing member 113 is connected to the cover plate 1. The second insertion part 21 is provided with an insertion groove 212. The fixing groove wall 214 is connected to the fixing part 2. Alternatively, the first insertion part 11 may be provided with an insertion groove 212. The fixing groove wall 214 is connected to the cover plate 1. The second insertion part 21 may be provided with a fixing member 113 and an insertion protrusion 112 that are fixed to each other. The fixing member 113 is connected to the fixing part 2.

[0079] In this embodiment, the fastener 113 can be integrally formed on the cover plate 1, or it can be fixed by bolts, welding, snap-fitting, or other methods. The fixing groove wall 214 can be integrally formed on the fixing part 2, or it can be fixed by bolts, welding, snap-fitting, or other methods.

[0080] In the plug-in engagement state, the plug-in protrusion 112 is located in the plug-in groove 212. The two side walls and the bottom wall of the plug-in groove 212 can limit the plug-in protrusion 112 in two mutually perpendicular directions, namely the first direction and the second direction. This allows the cover plate 1 and the fixing part 2 to be limited in the first and second directions. Due to the abutting action of the first guide mating surface 111 and the second guide mating surface 211, the cover plate 1 and the fixing part 2 can only move in the axial direction of the plug-in groove 212 (i.e., along the third direction) towards the direction of separation. Then, a stable fixation can be achieved by connecting the connector 8.

[0081] like Figure 5 and Figure 6 As shown, both the first guide mating surface 111 and the second guide mating surface 211 are wedge-shaped surfaces, which simplifies the machining process. Of course, the first guide mating surface 111 and the second guide mating surface 211 can also be set as conical surfaces, arc surfaces, etc.

[0082] like Figure 7 and Figure 8 As shown, the cover plate 1 forms a first end 13 at its two ends along the first direction, and each first end 13 is provided with a first insertion part 11. Correspondingly, the fixing part 2 forms a second end 25 at its two ends along the first direction, and each second end 25 is provided with a second insertion part 21. The number of first insertion parts 11 and second insertion parts 21 are the same and they are arranged accordingly.

[0083] In this embodiment, there is no limitation on the number of the first plug-in portion 11 and the second plug-in portion 21. For example, the first end portion 13 may be provided with two or more first plug-in portions 11, and each first plug-in portion 11 may be spaced apart along a third direction. Alternatively, the first end portion 13 may be provided with a first plug-in portion 11 with a relatively long length.

[0084] Each of the two first ends 13 is provided with a first insertion part 11, which can improve the insertion stability between the cover plate 1 and the fixing part 2. When the first end 13 is provided with two or more first insertion parts 11, the distance between the mutual movement of the first insertion parts 11 and the second insertion parts 21 to achieve insertion can be set to be relatively small, which facilitates the insertion operation.

[0085] Of course, in this embodiment, the cover plate 1 may also have a plug-in portion on one end along a third direction; no specific limitation is made here.

[0086] There are no restrictions on the setting of the slot opening of the insertion groove 212. Taking the first insertion part 11 having an insertion protrusion 112 and the second insertion part 21 having an insertion groove 212 as an example, the slot openings of the two insertion grooves 212 located at the two second ends 25 can be opposite in direction. In the insertion state, the insertion protrusion 112 is located in the corresponding insertion groove 212. By abutting the bottom wall of the insertion groove 212 with the insertion protrusion 112, the movement of the cover plate 1 relative to the fixing part 2 in the first direction can be restricted. By abutting the side wall of the insertion groove 212 with the insertion protrusion 112, the movement of the cover plate 1 relative to the fixing part 2 in the second direction can be restricted. The first guide mating surface 111 and the second guide mating surface 211 can improve the positional stability between the cover plate 1 and the fixing part 2.

[0087] Alternatively, the two second end slots 212 of the two end slots 25 can have the same slot direction, such as both facing away from the cover plate 1 (i.e. facing the cabinet 20). In the plugged state, the plug protrusion 112 is located in the corresponding plug slot 212. By abutting the plug protrusion 112 with the bottom wall of the plug slot 212, the cover plate 1 can be restricted from moving relative to the fixing part 2 in the second direction. By abutting the plug protrusion 112 with the side wall of the plug slot 212, the cover plate 1 can be restricted from moving relative to the fixing part 2 in the first direction. The first guide mating surface 111 and the second guide mating surface 211 can improve the positional stability between the cover plate 1 and the fixing part 2.

[0088] The cover plate 1 is also provided with a connecting ear 14, which is fixed to the fixing part 2 or the cabinet 20 by a connector 8. The connecting ear 14 is provided with a connecting hole 141, and the connector 8 can be a bolt. The connecting ear 14 can be fixed to the side wall of the cabinet 20 by passing the bolt through the connecting hole 141, which is relatively convenient. Of course, in this embodiment, there is no limitation on the connector 8. For example, the connector 8 can also be set as a latch, and the cover plate 1 and the cabinet 20 can be fixed by the latch. By providing a connecting ear 14 on the cover plate 1 and setting the connector 8 as a bolt, the overall structure and installation operation can be simplified. In addition, in the installed state, the peripheral side wall of the cover plate assembly 10 and the peripheral side wall of the cabinet 20 can be roughly aligned, with no protruding structural setting, which can reduce the space requirements for the placement of the electrical cabinet.

[0089] Of course, the cover plate 1 may not have the connecting ear 14, and the connector 8 may be a bolt that passes directly through the cover plate 1 and is fixed to the fixing part 2. When the cover plate 1 is provided with the connecting ear 14, the position of the connecting ear 14 can be set according to the actual situation, which is more flexible.

[0090] like Figure 9 In the embodiment shown, the connecting ear 14 is located at the rear end 17 of the cover plate 1 along a third direction, where "rear end 17" refers to the end facing the side where the plug-in engagement is disengaged. The connecting ear 14 extends along the edge side of the cover plate 1 and is parallel to the first direction and perpendicular to the third direction. The connecting ear 14 is provided with at least two connecting holes 141 at intervals and is fixed to the side wall of the cabinet 20 by at least two bolts.

[0091] Or, it could also be like Figure 10 In the embodiment shown, the connecting ears 14 are located at the two first ends 13 of the cover plate 1. Each first end 13 is provided with two connecting ears 14 spaced apart along a third direction. Each connecting ear 14 is provided with a connecting hole 141 and is fixed to the side wall of the cabinet 20 by two bolts.

[0092] Of course, in this embodiment, there is no limitation on the location of the connecting ear 14. For example, the connecting ear 14 can be provided at the front end and the rear end along a third direction, or the connecting ear 14 can be provided around the four sides of the cover plate 1. The size and shape of the connecting ear 14 are not limited and can be set according to the actual connection situation.

[0093] The cover assembly 10 also includes a filter 7. When the cover assembly 10 is closed on the opening 210, the filter 7 is correspondingly arranged to the opening 210 and filters the gas entering the cabinet 20 through the opening 210, effectively reducing the entry of foreign objects, dust, water droplets and the like into the cabinet 20, thereby providing protection for the electrical components inside the cabinet 20.

[0094] like Figure 3 , Figure 9 and Figure 10 As shown, the cover plate 1 is also provided with a side plate 12 along the circumference. The side plate 12 extends towards the side of the fixing part 2. The filter part 7 is provided on the side plate 12, and the side plate 12 with the filter part 7 is also provided with filter holes 121. The filter part 7 includes a wire mesh 71. The aperture of the wire mesh 71 is smaller than the aperture of the filter hole 121. The cover plate assembly 10 is provided with an air passage communicating with the opening 210. The filter hole 121 is located at the outermost end of the air passage. The filter hole 121 can perform preliminary filtration of the gas entering the air passage from the outside. The wire mesh 71 can further filter the gas entering the air passage from the inside, so as to improve the cleanliness of the gas entering the cabinet 20 through the opening 210, thereby improving the waterproof and dustproof performance of the cover plate assembly 10.

[0095] All side plates 12 can be provided with filter holes 121 and wire mesh 71, or some side plates 12 can be provided with filter holes 121 and wire mesh 71, while some side plates 12 can be without filter holes 121 and wire mesh 71. Figure 9 In the embodiment shown, when a connecting ear 14 is provided on the rear side of the cover plate 1 along a third direction, the side plate 12 located on the rear side of the cover plate 1 is not provided with filter holes 121, while the other side plates 12 are provided with filter holes 121 and filter parts 7.

[0096] The wire mesh 71 is installed on the inner wall of the side panel 12 to ensure the neatness and aesthetics of the overall external structure of the cabinet 20, thereby improving the user experience. Furthermore, due to the installation of the filter holes 121 and the wire mesh 71, the waterproof and dustproof performance requirements at the external port of the air duct can be met, eliminating the need for dustproof cotton and reducing the frequency of maintenance.

[0097] Of course, in this embodiment, the cover plate 1 may not have a side plate 12. The cover plate 1 has filter holes 121 and a wire mesh 71 is provided on the side wall facing the fixing part 2. By providing a side plate 12 to the cover plate 1 and fixing the wire mesh 71 to the inner wall of the side plate 12, the cover plate 1 can further improve the waterproof performance and reduce the probability of external water droplets entering the filter holes 121 when it covers the opening 210 at the top of the cabinet 20.

[0098] In addition, when the cover plate 1 is provided with a side plate 12, a connecting plate 16 is also provided on the side of the side plate 12 facing the fixing part 2, and the connecting plate 16 is fixed to the first insertion part 11. If the cover plate 1 is not provided with a side plate 12, the first insertion part 11 can be directly fixed to the cover plate 1.

[0099] In this embodiment, the fixing method between the filter section 7 and the side plate 12 is not limited. For example, the filter section 7 can be fixed to the side plate 12 by fasteners, or the inner wall of the side plate 12 can be provided with a plug-in structure 15. The plug-in structure 15 can be a hole or a slot. One end of the filter section 7 is inserted into the plug-in structure 15, and then the other end of the filter section 7 is fixed to the side plate 12 by fasteners. This arrangement can reduce the number of fasteners for fixing the filter section 7, reduce the use of parts, facilitate disassembly and assembly operations, and further improve the maintainability of the electrical cabinet.

[0100] For example, the inner wall of the side plate 12 can be fixed to the inner wall of the side plate 12 by means of fasteners or other means by setting a connector strip, or the connector strip can be integrally formed with the side plate 12, and a hole or slot can be formed between the connector strip and the side plate 12. Alternatively, the inner wall of the side plate 12 can be formed by raising the edge to form a slot. No specific restrictions are made here.

[0101] The filter section 7 also includes a frame section 72, to which the wire mesh 71 is fixed, thereby improving the structural strength of the filter section 7 and facilitating the installation operation between the filter section 7 and the side plate 12. The frame section 72 can be a frame 721, such as... Figure 3 The wire mesh 71 shown is fixed to the frame 721 circumferentially, resulting in a simple overall structure. Alternatively, it could be as follows: Figure 9 and Figure 10 As shown, the frame part 72 is a filter plate 722, which is provided with louvered perforations 723. The louvered perforations 723 are formed by punching the filter plate 722 with a punching device, and an arched structure is also provided at the perforation. The wire mesh 71 is fixed to the side wall of the filter plate 722 away from the arched structure. The setting of the louvered perforations 723 allows the gas to bypass the arched structure before entering the interior through the perforations. This increases the length of the air passage and increases the complexity of the gas path when passing through the air passage, which can improve the waterproof and dustproof performance while achieving good ventilation. Of course, the filter plate 722 can also be provided with other ventilation holes, and there is no specific limitation on this.

[0102] When the opening 210 is located at the top of the cabinet 20, the side panel 12 is located on the side wall of the cabinet 20. At this time, the arched structure can be located above the perforation, which can block water from entering the air passage from above and effectively improve the waterproof effect.

[0103] The frame 72 and the side plate 12 can be fixed with fasteners, which is simple in structure and easy to disassemble and assemble. Alternatively, the filter plate 722 can also be plugged into the plug-in structure 15 and fixed with fasteners.

[0104] like Figure 9 and Figure 10 As shown, when the cover plate 1 is provided with a connecting ear 14, the connecting ear 14 can be fixed to the side plate 12, or the connecting ear 14 can be formed by a partial extension of the side plate 12.

[0105] like Figure 11 As shown, the fixing part 2 is a fixing plate 22, which is fixed to the cabinet body 20 and is arranged circumferentially along the opening 210 of the cabinet body 20. The fixing plate 22 is provided with a ventilation opening 23. When the fixing plate 22 is fixed to the cabinet body 20, the ventilation opening 23 communicates with the opening 210 to achieve ventilation. The fixing plate 22 is provided with the aforementioned second insertion part 21. This arrangement can improve the fixing stability between the fixing part 2 and the cabinet body 20.

[0106] In this embodiment, the structure of the fixing part 2 is not limited. For example, the fixing part 2 can also be set as two separate fixing members 113. The fixing members 113 are fixed to the periphery of the opening 210 of the cabinet 20 and used to fix it to the cover plate 1.

[0107] There are no restrictions on the fixing method between the fixing plate 22 and the cabinet 20. For example, it can be fixed by bolts, which are arranged at intervals along the circumference. When the cover plate 1 is disassembled, it is not necessary to remove the fixing plate 22. The fixing plate 22 and the cabinet 20 can also be sealed by clamping a sealing gasket. Alternatively, the fixing plate 22 and the cabinet 20 can also be fixed by welding or other methods.

[0108] The cover plate assembly 10 also includes a first baffle 3, a second baffle 4, and a third baffle 5, wherein, as Figure 12 and Figure 13 As shown, the first baffle 3 is fixed to the side wall of the cover plate 1 facing the fixed plate 22, and the second baffle 4 and the third baffle 5 are both fixed to the side wall of the fixed plate 22 facing the cover plate 1. When the cover plate 1 and the fixed plate 22 are fixed, the second baffle 4, the first baffle 3 and the third baffle 5 are arranged in sequence from the side facing the vent 23 to the side away from the vent 23.

[0109] like Figure 13As shown, the first baffle 3 and the third baffle 5 partially overlap in the second direction, and the second baffle 4 and the third baffle 5 partially overlap in the second direction. When the top of the cabinet 20 has an opening 210, the second direction is the height direction. The cover plate 1 is located above the fixed plate 22. The bottom height of the first baffle 3 is lower than the top height of the second baffle 4, and the bottom height of the first baffle 3 is lower than the top height of the third baffle 5. Viewed from the side, as shown... Figure 14 and Figure 15 As shown, there is no gap between the first baffle 3 and the second baffle 4, nor is there a gap between the first baffle 3 and the third baffle 5.

[0110] In this way, an S-shaped labyrinthine air passage can be formed, extending from the outside of the cover assembly 10 into the cabinet 20, and passing sequentially around the third baffle 5, the first baffle 3, the second baffle 4, and the vent 23. This air passage is like... Figure 13 As shown by the dashed path, gas can enter the cabinet 20 or exit the cabinet 20 through the air passage of the S-shaped labyrinth structure. The air passage can also effectively intercept external water or dust, thereby effectively preventing external water droplets and dust from entering the cover assembly 10 along the path, achieving waterproof and dustproof effects, and providing protection for the electrical components inside the cabinet 20.

[0111] Of course, in this embodiment, the cover plate 1 may also be provided with a fourth baffle, and the fixing plate 22 is provided with a fifth baffle. The fourth baffle and the fifth baffle are sequentially provided on the side of the third baffle 5 away from the second baffle 4, so as to further extend the path of the S-shaped maze structure and improve the waterproof performance of the cover plate assembly 10.

[0112] Water droplets may form on the side of the cover plate 1 facing the fixing plate 22 due to condensation. In this embodiment, the cover plate assembly 10 also includes a first cotton layer 9, which is disposed on the side wall of the cover plate 1 facing the fixing plate 22. The first cotton layer 9 will absorb the condensed water droplets and prevent the condensed water droplets from entering the cabinet 20 through the vent 23, so as to provide protection for the electrical components inside the cabinet 20.

[0113] The first cotton layer 9 is sandwiched between the first baffle 3 and the cover plate 1, or the first cotton layer 9 can be positioned away from the third baffle 5. Sandwiching the first cotton layer 9 between the first baffle 3 and the cover plate 1 can further fix the first cotton layer 9 through the first baffle 3, thereby improving the stability of the fixation between the first cotton layer 9 and the cover plate 1.

[0114] like Figure 16As shown, the first baffle 3 has a first flange structure 31 on one edge facing the cover plate 1. The first cotton layer 9 is sandwiched between the first flange structure 31 and the cover plate 1. The first flange structure 31 can increase the contact area with the first cotton layer 9, further ensuring the stability of the first cotton layer 9 and the cover plate 1, while not affecting the water absorption performance of the first cotton layer 9. The first flange structure 31 can be fixed to the cover plate 1 with bolts, which facilitates the fixing operation between the two.

[0115] The first cotton layer 9 and the cover plate 1 can be fixed by adhesive bonding, by arranging multiple sets of spaced screws and washers, or by both adhesive bonding and screw and washer fixing. Combined with the fixing effect of the first baffle 3, the adhesion stability between the first cotton layer 9 and the cover plate 1 is better.

[0116] like Figure 11 As shown, the fixing plate 22 has a second flange structure 24 along the circumference of the ventilation opening 23. This second flange structure 24 forms the aforementioned second baffle 4. The fixing plate 22 can be formed into the second baffle 4 by stamping, thereby simplifying the overall structure and manufacturing process. Of course, in this embodiment, the specific structure of the second baffle 4 is not limited. For example, the second baffle 4 can also be set as a structure independent of the fixing plate 22, and the second baffle 4 and the fixing plate 22 can be fixed by fasteners or other means.

[0117] like Figure 13 and Figure 17 As shown, the third baffle 5 is also provided with a water guide groove 51 on the side facing the fixed plate 22. The water guide groove 51 is located on the side of the third baffle 5 facing the second baffle 4. The water flow entering the S-shaped structure air passage from the outside will collide with the first baffle 3 after passing the third baffle 5 and the second baffle 4, and then fall into the water guide groove 51. This prevents water droplets from splashing into the cabinet 20 when the water flow enters from the outside impacts the air passage. The water guide groove 51 can be connected to the outside so that water can be smoothly discharged from the water guide groove 51.

[0118] In this embodiment, there are no restrictions on the structure of the water guide channel 51. It can be formed by bending the edge of the third baffle 5 facing the fixed plate 22 to form the water guide channel 51, which has a simple overall structure. Alternatively, the water guide channel 51 can be set as a separate channel structure and the channel structure can be fixed to the third baffle 5.

[0119] like Figure 17 As shown, the cover plate assembly 10 also includes a second cotton layer 6, which is disposed on the side of the third baffle 5 away from the second baffle 4. The second cotton layer 6 can absorb moisture entering from the outside, so that when the external water flows into the air passage, it is blocked by the outer wall of the third baffle 5 and splashed up, reducing the impact of the water.

[0120] There are no restrictions on the fixing method between the second cotton layer 6 and the third baffle 5. For example, it can be fixed by adhesive bonding, or by arranging multiple sets of spaced screws and washers, or by fixing with adhesive bonding and multiple sets of spaced screws and washers at the same time to ensure the reliability of the fixing.

[0121] In this embodiment, there are no restrictions on the fixing method between the third baffle 5 and the fixing plate 22. For example, when the third baffle 5 is bent to form a water guide channel 51, the bottom of the water guide channel 51 and the fixing plate 22 can be fixed with bolts.

[0122] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0123] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0124] The above are merely preferred embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A cover plate assembly for an electrical cabinet, characterized in that, It includes a cover plate (1), a fixing part (2) and a connector (8), wherein the fixing part (2) is used to connect to the cabinet body (20) of the electrical cabinet; The cover plate (1) is provided with a first insertion part (11), the first insertion part (11) is provided with a first guide mating surface (111), the fixing part (2) is provided with a second insertion part (21), the second insertion part (21) is provided with a second guide mating surface (211), when the cover plate (1) and the fixing part (2) move relative to each other to the state where the first guide mating surface (111) and the second guide mating surface (211) abut against each other, the cover plate (1) blocks the opening (210) of the cabinet (20), the first insertion part (11) and the second insertion part (21) are inserted and connected, and the cover plate (1) is restricted from moving relative to the fixing part (2) in the first direction and the second direction; The cover plate (1) is connected to at least one of the fixing part (2) and the cabinet (20) via the connector (8) to restrict the cover plate (1) from moving relative to the fixing part (2) in a third direction; The first direction, the second direction, and the third direction are perpendicular to each other. The third direction is the insertion direction of the first insertion part (11) and the second insertion part (21), and the second direction is the axial direction of the opening (210).

2. The cover assembly of the electrical cabinet according to claim 1, characterized in that, The first plug-in part (11) is provided with a plug-in protrusion (112), and the second plug-in part (21) is provided with a plug-in groove (212). The axial direction of the plug-in groove (212) is arranged along the third direction. The end groove wall (2121) of the plug-in groove (212) is provided with a bending structure (213) arranged outward from the plug-in groove (212). The side wall of the bending structure (213) facing the inside of the plug-in groove (212) is provided with a second guide mating surface (211), and the surface of the plug-in protrusion (112) is provided with the first guide mating surface (111). Alternatively, the first plug-in part (11) is provided with a plug-in groove (212), the second plug-in part (21) is provided with a plug-in protrusion (112), the axial direction of the plug-in groove (212) is arranged along the third direction, the end groove wall (2121) of the plug-in groove (212) is provided with a bending structure (213) arranged outward of the plug-in groove (212), the side wall of the bending structure (213) facing the inside of the plug-in groove (212) is provided with the first guide mating surface (111), and the surface of the plug-in protrusion (112) is provided with the second guide mating surface (211).

3. The cover assembly of the electrical cabinet according to claim 2, characterized in that, The insertion slot (212) is provided with a fixed slot wall (214); The insertion protrusion (112) is also fixedly connected to a fixing member (113). Of the fixing groove wall (214) and the fixing member (113), one is connected to the cover plate (1) and the other is connected to the fixing part (2).

4. The cover assembly of the electrical cabinet according to any one of claims 1-3, characterized in that, Both the first guide mating surface (111) and the second guide mating surface (211) are wedge-shaped surfaces.

5. The cover assembly of the electrical cabinet according to any one of claims 1-3, characterized in that, The cover plate (1) has two ends forming first ends (13) along the first direction, and each first end (13) is provided with the first insertion part (11).

6. The cover assembly of the electrical cabinet according to claim 5, characterized in that, The cover plate (1) is also provided with a connecting ear (14), which is connected to the fixing part (2) or the cabinet (20) through the connector (8).

7. The cover assembly of the electrical cabinet according to claim 6, characterized in that, The connecting ear (14) is provided at the rear end (17) of the cover plate (1) along the third direction, or the connecting ear (14) is provided at the first end (13).

8. The cover assembly of the electrical cabinet according to any one of claims 1-3, characterized in that, The fixing part (2) is a fixing plate (22), and the fixing plate (22) has a ventilation opening (23). When the fixing plate (22) is fixed to the cabinet (20), the ventilation opening (23) is connected to the opening (210); The fixing plate (22) is provided with the second plug-in part (21).

9. The cover assembly of the electrical cabinet according to claim 8, characterized in that, The cover plate assembly also includes a first baffle (3), a second baffle (4) and a third baffle (5); The first baffle (3) is provided on the side wall of the cover plate (1) facing the fixed plate (22), and the second baffle (4) and the third baffle (5) are provided on the side wall of the fixed plate (22) facing the cover plate (1); The second baffle (4), the first baffle (3) and the third baffle (5) are arranged in sequence at intervals from the side facing the vent (23) to the side away from the vent (23); The first baffle (3) and the third baffle (5) partially overlap in the second direction, and the second baffle (4) and the third baffle (5) partially overlap in the second direction.

10. The cover assembly of the electrical cabinet according to claim 9, characterized in that, The cover plate assembly further includes a first cotton layer (9), which is disposed between the first baffle (3) and the cover plate (1).

11. The cover assembly of the electrical cabinet according to claim 10, characterized in that, The first baffle (3) is provided with a first flange structure (31) on one side facing the cover plate (1), and the first cotton layer (9) is sandwiched between the first flange structure (31) and the cover plate (1).

12. The cover assembly of the electrical cabinet according to claim 9, characterized in that, The fixing plate (22) is provided with a second flange structure (24) along the circumference of the ventilation opening (23), and the second flange structure (24) forms the second baffle (4).

13. The cover assembly of the electrical cabinet according to claim 9, characterized in that, The third baffle (5) is also provided with a water guide groove (51) on the side facing the fixed plate (22), and the water guide groove (51) is located on the side of the third baffle (5) facing the second baffle (4).

14. The cover assembly of the electrical cabinet according to claim 9, characterized in that, The cover assembly also includes a second cotton layer (6), which is disposed on the side of the third baffle (5) away from the second baffle (4).

15. The cover assembly of the electrical cabinet according to any one of claims 1-3, characterized in that, The cover assembly also includes a filter section (7), which includes a wire mesh (71). The cover plate (1) is also provided with a side plate (12) along the circumferential direction. The side plate (12) extends toward the side of the fixing part (2). The filter part (7) is provided on the side plate (12), and the side plate (12) with the filter part (7) is also provided with filter holes (121).

16. The cover assembly of the electrical cabinet according to claim 15, characterized in that, The side plate (12) is also provided with a plug-in structure (15), which is a plug hole or slot. The filter part (7) is plugged into the plug-in structure (15) and connected to the side plate (12) by fasteners.

17. The cover assembly of the electrical cabinet according to claim 15, characterized in that, The filter section (7) further includes a frame section (72), which is a frame (721) and the frame (721) is arranged along the circumference of the wire mesh (71). Alternatively, the frame section (72) is a filter plate (722) and the filter plate (722) is provided with louvered perforations (723).

18. An electrical cabinet, characterized in that, Includes a cabinet (20) and a cover assembly as described in any one of claims 1-17, wherein the cabinet (20) is provided with an opening (210).

Images