High-voltage cabinet connecting structure
The wall panel and internal parts of the high-voltage cabinet are connected by countershot self-tapping and locking screws, which solves the problems of bolt connection interference and convex hull riveting, and realizes efficient parts fixing and replacement, reducing processing and material costs.
Patent Information
- Application Number
- CN202422699432.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-11-05
AI Technical Summary
When the high-pressure cabinet is directly connected to the bolts, it requires processing and giving way holes to increase processing volume and labor costs. The inability to disassemble the convex hull and rivet is inconvenient for parts replacement. At the same time, the convex hull processing increases the material cost.
The countershot self-tapping and locking screw is used to connect the wall panel and the internal parts, and is directly fixed through the coaxial holes of the first mounting plate and the second mounting plate to avoid processing of the give way holes and convex hulls.
It solves the interference problem when connecting high-voltage cabinets, reduces processing volume and labor costs, facilitates later parts replacement, and reduces material costs.
Smart Images
Figure CN223261095U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of high-voltage electrical equipment, and in particular to a high-voltage cabinet connection structure. Background Art
[0002] At present, the electrical distance requirements of high-voltage switchgear are much greater than those of low-voltage cabinets. In order to make full use of the space inside the cabinet, the high-voltage switchgear adopts a metal wall panel structure. During the assembly of the high-voltage switchgear, the main support of the cabinet is the top plate, bottom plate and the four large metal wall panels on the left and right. All components inside the cabinet are fixed based on the left and right wall panels.
[0003] In the related art, there are two common ways to connect high-voltage cabinets. One is to directly drill holes on the wall panels and the parts that need to be installed inside, and use bolts to directly connect the parts to the wall panels. The other is to process bulges of different sizes on the wall panels and the parts that need to be installed inside, and process suitable installation holes on the bulges, and use rivets to pass through different bulges to connect the parts to the wall panels. Direct connection of high-voltage cabinets with bolts will cause interference when adjacent cabinets are merged. Makeshift holes need to be processed at the positions of the abutting cabinets corresponding to the protruding bolts, which increases the processing volume and labor costs. The bulge riveting cannot be disassembled, which is not convenient for later parts replacement. At the same time, the bulge processing increases the processing volume and material costs.
[0004] Therefore, it is necessary to design a new high-voltage cabinet connection structure to overcome the above problems. Utility Model Content
[0005] The present application provides a high-voltage cabinet connection structure that can solve the technical problem that in the related art, high-voltage cabinets are directly connected by bolts, which will cause interference when adjacent cabinets are connected together, and it is necessary to process clearance holes at the positions where the bolts protrude corresponding to the abutting cabinets, which increases the processing volume and labor costs. The convex riveting cannot be disassembled, which is not convenient for later parts replacement. At the same time, the convex processing increases the processing volume and material costs.
[0006] In the first aspect, an embodiment of the present application provides a high-voltage cabinet connection structure, which includes: a wall panel and internal parts, the wall panel has a first mounting plate, the first mounting plate is provided with a first mounting hole; the internal parts include a main board and a second mounting plate, the second mounting plate is vertically connected to the main board, and the second mounting plate is fitted with the first mounting plate, the second mounting plate is provided with a second mounting hole coaxially arranged with the first mounting plate, and the second mounting plate is connected to the first mounting plate by countersunk self-tapping and self-locking screws passing through the first mounting hole and the second mounting hole.
[0007] In combination with the first aspect, in one embodiment, the countersunk self-tapping and self-locking screw includes a screw head, a screw body and a screw through-hole end, the screw head is configured as a frustum, the screw body is configured as a cylinder, the cross-section of the screw through-hole end is configured as a triangle, the side surface of the screw head is fitted with the inner wall of the first mounting hole, and the screw body is plugged into the second mounting hole.
[0008] In combination with the first aspect, in one embodiment, the cross-section of the screw head is configured as an isosceles trapezoid, and the end surface of the screw head is flush with the outer surface of the first mounting plate or is located in the first mounting hole.
[0009] In combination with the first aspect, in one embodiment, a cross groove is formed on the inner side of the screw head.
[0010] In combination with the first aspect, in one embodiment, the angle between the side surface of the screw through-hole end and the axis of the countersunk self-tapping and self-locking screw is set to 9-11 degrees.
[0011] In combination with the first aspect, in one embodiment, the outer diameter d2 of the screw body is equal to the inner diameter of the second mounting hole, and the outer diameter d2 of the screw body is set to 5.8 to 6.2 mm.
[0012] In combination with the first aspect, in one embodiment, the length d1 of the second mounting plate is set to 20 to 30 mm.
[0013] In combination with the first aspect, in one embodiment, the high-voltage cabinet connection structure includes multiple cabinet bodies, the wall panels are arranged around the multiple cabinet bodies, the multiple cabinet bodies are combined by bonding two adjacent wall panels, and the outer sides of the multiple cabinet bodies are fixed by sealing plates.
[0014] In combination with the first aspect, in one embodiment, cabinet doors are provided on both sides of the plurality of cabinet bodies, and each cabinet door is provided with an observation window.
[0015] In combination with the first aspect, in one embodiment, the wall panel is configured as a steel plate, and an outer surface of the wall panel is provided with an aluminum-zinc coating.
[0016] The beneficial effects of the technical solutions provided in the embodiments of the present application include:
[0017] By using countersunk self-tapping self-locking screws to connect the wall panels and internal parts, the first mounting plate located on the wall panel and the second mounting plate located on the internal parts can be directly fitted and fixed, so that adjacent wall panels do not need to be processed with clearance holes, and at the same time, the connection between the first mounting plate and the second mounting plate does not need to be processed with convex hulls, which solves the technical problem that in the related technology, high-voltage cabinets are directly connected by bolts, which will cause interference when adjacent cabinets are combined, and clearance holes need to be processed at the protruding positions of the bolts on the abutting cabinets, increasing the processing volume and labor costs. The convex hull riveting cannot be disassembled, which is not convenient for later parts replacement. At the same time, the convex hull processing increases the processing volume and material costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0019] Figure 1 A schematic diagram of the structure of the bolted connection between the wall panels and internal parts provided in an embodiment of the present application;
[0020] Figure 2 A schematic diagram of the structure of riveted wall panels and internal parts provided in an embodiment of the present application;
[0021] Figure 3 A schematic structural diagram of a high-voltage cabinet connection structure provided in an embodiment of the present application;
[0022] Figure 4 A schematic diagram of the structure of a countersunk self-tapping and self-locking screw provided in an embodiment of the present application;
[0023] Figure 5 A cross-sectional view of the screw through-hole end provided in an embodiment of the present application.
[0024] In the figure: 1', wall panel; 2', internal parts; 21', mounting plate; 1, wall panel; 11, first mounting plate; 2, internal parts; 21, main board; 22, second mounting plate; 3, countersunk self-tapping and self-locking screw; 31, screw head; 32, screw body; 33, screw through-hole end. DETAILED DESCRIPTION
[0025] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention 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 this application.
[0026] See also Figure 1 and Figure 2 As shown, the distance between the electrical appliances in the high-voltage cabinet is required to be greater than that in the low-voltage cabinet. In order to make full use of the space inside the cabinet, the high-voltage cabinet is generally supported by a metal wall panel structure, while the low-voltage cabinet is generally supported by the main columns and side beams of the cabinet frame. When the internal parts 2' of the high-voltage cabinet are connected to the wall panel 1', there will be interference between the connectors. There are two ways to connect the internal parts 2' and the wall panel. One is to directly bolt the wall panel 1' and the internal parts 2', such as Figure 1 As shown, when adjacent cabinets are connected, the bolts will interfere with each other, and clearance holes need to be processed at the positions where the bolts protrude. This connection method requires the processing of clearance holes at each connection, which greatly increases the processing volume and labor costs. A wall panel 1' and internal parts 2' are processed with convex hulls of different sizes and connected with rivets, such as Figure 2 As shown, this connection method requires processing of convex hulls, which increases the processing volume and material cost. In addition, the convex hull riveted connection cannot be disassembled, making it inconvenient to replace the cabinet body later.
[0027] An embodiment of the present application provides a high-voltage cabinet connection structure, which can solve the technical problem that when the high-voltage cabinet is directly connected by bolts, interference will occur when adjacent cabinets are connected together, and clearance holes need to be processed at the protruding positions of the bolts corresponding to the abutting cabinets, which increases the processing volume and labor costs. The convex riveting cannot be disassembled, which is not convenient for later parts replacement. At the same time, the convex processing increases the processing volume and material costs.
[0028] See also Figure 3 As shown, an embodiment of the present application provides a high-voltage cabinet connection structure, which includes: a wall panel 1 and an internal part 2, the wall panel 1 has a first mounting plate 11, and the first mounting plate 11 is provided with a first mounting hole; the internal part 2 includes a main board 21 and a second mounting plate 22, the second mounting plate 22 is vertically connected to the main board 21, and the second mounting plate 22 is in contact with the first mounting plate 11, the second mounting plate 22 is provided with a second mounting hole coaxially arranged with the first mounting plate 11, and the second mounting plate 22 is connected to the first mounting plate 11 by a countersunk self-tapping screw 3 passing through the first mounting hole and the second mounting hole.
[0029] In this embodiment, several key components need to be fixed in the high-voltage cabinet, such as the instrument room back plate, the instrument room bottom plate, the busbar room lower bend plate and the secondary protection plate bracket. Taking the internal part 2 as the busbar room lower bend plate as an example, the two sides of the busbar room lower bend plate need to be bent. Demonstratively, the internal part 2 includes the main board 21 and the second mounting plate 22. The second mounting plate 22 is vertically connected to the main board 21. The second mounting plate 22 is directly connected to the first mounting plate 11 through the countersunk self-tapping and self-locking screws 3, so that the adjacent wall panels 1 do not need to be processed with clearance holes, and at the same time, the connection between the first mounting plate 11 and the second mounting plate 22 does not need to be processed with convex bulges.
[0030] This embodiment connects the wall panel 1 and the internal part 2 by using the countersunk self-tapping self-locking screws 3, so that the first mounting plate 11 located on the wall panel 1 and the second mounting plate 22 located on the internal part 2 can be directly fitted and fixed, so that the adjacent wall panels 1 do not need to be processed with clearance holes, and at the same time, the connection between the first mounting plate 11 and the second mounting plate 22 does not need to be processed with convex humps, which solves the technical problem in the related art that high-voltage cabinets are directly connected by bolts, which will cause interference when adjacent cabinets are combined, and clearance holes need to be processed at the protruding positions of the bolts of the abutting cabinets, increasing the processing volume and labor costs. The convex hump riveting cannot be disassembled, which is not convenient for later parts replacement, and the convex hump processing increases the processing volume and material costs.
[0031] Further, see Figure 3-5 As shown, in some embodiments, the countersunk self-tapping and self-locking screw 3 includes a screw head 31, a screw body 32 and a screw through-hole end 33, the screw head 31 is configured as a frustum, the screw body 32 is configured as a cylinder, the cross-section of the screw through-hole end 33 is configured as a triangle, the side surface of the screw head 31 is fitted with the inner wall of the first mounting hole, and the screw body 32 is plugged into the second mounting hole.
[0032] In this embodiment, the cross-section of the screw through-hole end 33 can be set to a triangle, reducing the cross-sectional area of the screw through-hole end 33, so that the countersunk self-drilling and self-locking screw 3 can quickly drill through the wall panel 1 and the internal part 2 during the drilling process, and the side of the screw head 31 fits with the inner wall of the mounting hole, so that the countersunk self-drilling and self-locking screw 3 is firmly supported on the wall panel 1, and the internal part 2 is firmly fixed to the wall panel 1 through the countersunk self-drilling and self-locking screw 3.
[0033] Further, see Figure 3 and Figure 4As shown, in some embodiments, the cross section of the screw head 31 is set to be an isosceles trapezoid, and the end surface of the screw head 31 is flush with the outer surface of the first mounting plate 11 or is located in the first mounting hole.
[0034] In this embodiment, the cross-section of the screw head 31 can be set to an isosceles trapezoid, the angle θ between the two side surfaces of the screw head 31 can be set to 90°, and the end face of the screw head 31 is flush with the outer surface of the first mounting plate 11 or is located in the first mounting hole, so that the two adjacent high-voltage cabinets will not interfere with each other due to the connecting parts when the cabinets are connected, and it is convenient to replace the cabinet body later.
[0035] Further, see Figure 3 As shown, in some embodiments, a cross slot is provided on the inner side of the screw head 31 .
[0036] In this embodiment, the inner side of the screw head 31 may be provided with the cross slot or the hexagonal slot to cooperate with the electric screwdriver to stably clamp the countersunk self-tapping and self-locking screw 3.
[0037] Further, see Figure 3 and Figure 4 As shown, in some embodiments, the angle between the side surface of the screw through-hole end 33 and the axis of the countersunk self-tapping and self-locking screw 3 is set to 9-11 degrees.
[0038] In this embodiment, the angle between the side surface of the screw through-hole end 33 and the axis of the countersunk self-drilling and self-locking screw 3 can be set to 9 to 11°. Preferably, the angle between the side surface of the screw through-hole end 33 and the axis of the countersunk self-drilling and self-locking screw 3 is set to 10°, so that the countersunk self-drilling and self-locking screw 3 can quickly drill through the wall panel 1 and the internal parts 2 at the optimal inclination angle during the drilling process.
[0039] Further, see Figure 3 and Figure 4 As shown, in some embodiments, the outer diameter d2 of the screw body 32 is equal to the inner diameter of the second mounting hole, and the outer diameter d2 of the screw body 32 is set to 5.8-6.2 mm.
[0040] In this embodiment, the outer diameter d2 of the screw body 32 can be set to 5.8~6.2mm. Preferably, the outer diameter d2 of the screw body 32 is set to 6mm, and the inner diameter d3 of the screw body 32 can be set to 5.0~5.6mm. Preferably, the inner diameter d3 of the screw body 32 is set to 5.3mm. During the installation of the high-voltage cabinet, a first mounting hole with an inner diameter of 6mm can be first processed on the wall panel 1, and a second mounting hole with an initial inner diameter of 5.3mm can be processed at the corresponding position of the internal part 2. The countersunk self-tapping and self-locking screw 3 is driven into the first mounting hole and the second mounting hole using an electric screwdriver to connect the wall panel 1 and the internal part 2, so that the final inner diameter of the second mounting hole is equal to the outer diameter d2 of the screw body 32.
[0041] Further, see Figure 3 As shown, in some embodiments, the length d1 of the second mounting plate 22 is set to 20-30 mm.
[0042] In this embodiment, the length d1 of the second mounting plate 22 can be set to 20-30 mm. Preferably, the length d1 of the second mounting plate 22 is set to 25 mm. Compared with the length D1 of the mounting plate 21 of 30 mm in the direct bolting method and the length D1 of the mounting plate 21 of 50 mm in the convex riveting method, the processing time and material cost of the connection using the countersunk self-tapping and self-locking screws 3 are effectively reduced, thereby reducing the overall cost of the high-voltage cabinet.
[0043] Furthermore, in some embodiments, the high-voltage cabinet connection structure includes multiple cabinet bodies, the wall panels 1 are arranged around the multiple cabinet bodies, the multiple cabinet bodies are combined by bonding two adjacent wall panels 1, and the outer sides of the multiple cabinet bodies are fixed by sealing plates.
[0044] In this embodiment, the high-voltage cabinet can be set as a KYN28 cabinet, and multiple cabinets can be directly connected or replaced. After connecting, the outer sides of the multiple cabinets can be fixed by the sealing plate, so that the high-voltage cabinet can be adjusted to different cabinet grouping methods according to actual needs.
[0045] Furthermore, in some embodiments, cabinet doors are provided on both sides of the plurality of cabinet bodies, and each cabinet door is provided with an observation window.
[0046] In this embodiment, cabinet doors are provided on the front and rear sides of the plurality of cabinets to facilitate placement of related electrical equipment, and each cabinet door is provided with an observation window to facilitate observation of relevant display data of the electrical equipment located in the cabinet.
[0047] Further, see Figure 3As shown, in some embodiments, the wall panel 1 is configured as a steel plate, and the outer surface of the wall panel 1 is provided with an aluminum-zinc coating.
[0048] In this embodiment, the wall panel 1 can be set as a steel plate to improve the overall strength of the high-voltage cabinet, and the outer surface of the wall panel 1 can be provided with the aluminum-zinc coating to improve the corrosion resistance and service life of the high-voltage cabinet.
[0049] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. 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 an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0050] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.
[0051] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.
Claims
1. A high-voltage cabinet connection structure, characterized in that: It includes: A wall panel (1), the wall panel (1) having a first mounting plate (11), the first mounting plate (11) being provided with a first mounting hole; An internal part (2), the internal part (2) comprising a main board (21) and a second mounting plate (22), the second mounting plate (22) being vertically connected to the main board (21), and the second mounting plate (22) being in contact with the first mounting plate (11), the second mounting plate (22) being provided with a second mounting hole coaxially arranged with the first mounting plate (11), the second mounting plate (22) being connected to the first mounting plate (11) by countersunk self-tapping screws (3) passing through the first mounting hole and the second mounting hole.
2. The high-voltage cabinet connection structure according to claim 1, characterized in that: The countersunk self-tapping self-locking screw (3) comprises a screw head (31), a screw body (32) and a screw through-hole end (33); the screw head (31) is configured as a frustum, the screw body (32) is configured as a cylinder, the cross section of the screw through-hole end (33) is configured as a triangle, the side surface of the screw head (31) is fitted with the inner wall of the first mounting hole, and the screw body (32) is plugged into the second mounting hole.
3. The high-voltage cabinet connection structure according to claim 2, characterized in that: The cross section of the screw head (31) is configured as an isosceles trapezoid, and the end surface of the screw head (31) is flush with the outer surface of the first mounting plate (11) or is located in the first mounting hole.
4. The high-voltage cabinet connection structure according to claim 2, characterized in that: A cross slot is formed inside the screw head (31).
5. The high-voltage cabinet connection structure according to claim 2, characterized in that: The angle between the side surface of the screw through-hole end (33) and the axis of the countersunk self-tapping and self-locking screw (3) is set to 9-11°.
6. The high-voltage cabinet connection structure according to claim 2, characterized in that: The outer diameter d2 of the screw body (32) is equal to the inner diameter of the second mounting hole, and the outer diameter d2 of the screw body (32) is set to 5.8-6.2 mm.
7. The high-voltage cabinet connection structure according to claim 1, characterized in that: The length d1 of the second mounting plate (22) is set to 20-30 mm.
8. The high-voltage cabinet connection structure according to claim 1, characterized in that: The high-voltage cabinet connection structure comprises a plurality of cabinet bodies, the wall panels (1) are arranged around the plurality of cabinet bodies, the plurality of cabinet bodies are joined together by two adjacent wall panels (1), and the outer sides of the plurality of cabinet bodies are fixed by sealing plates.
9. The high-voltage cabinet connection structure according to claim 8, characterized in that: Both sides of the plurality of cabinet bodies are provided with cabinet doors, and each cabinet door is provided with an observation window.
10. The high-voltage cabinet connection structure according to claim 1, characterized in that: The wall panel (1) is configured as a steel plate, and the outer surface of the wall panel (1) is provided with an aluminum-zinc coating.