An insulating pressure plate for a cable branch box base

Abstract

This utility model relates to the field of cable branch box technology, specifically to an insulating pressure plate for a cable branch box base. It includes a heat dissipation plate retaining groove and multiple busbar receiving areas evenly spaced inside the heat dissipation plate retaining groove. Adjacent busbar receiving areas form a pressure plate connection area. The insulating pressure plate is connected to the base at one point in the pressure plate connection area. The busbar body is secured to the base through the busbar receiving area. The busbar receiving area includes a busbar retaining groove in the middle and support plate receiving grooves on both sides of the busbar retaining groove. An auxiliary receiving groove is also provided between the busbar retaining groove and the support plate receiving groove. The heat dissipation plate retaining groove is a blind groove structure formed on the outer wall of the insulating pressure plate, with its lower end extending to the bottom end of the insulating pressure plate and forming a lower insertion opening. The insulating pressure plate in this design facilitates the disassembly and installation of the busbar.

Description

Technical Field

[0001] This utility model relates to the field of cable branch box technology, and specifically provides an insulating pressure plate for the base of a cable branch box. Background Technology

[0002] Cable distribution boxes are enclosed devices used in power distribution lines to connect cables to each other or cables to other electrical equipment. They are characterized by full insulation, full enclosure, corrosion resistance, and maintenance-free operation. They can realize functions such as cable splitting, branching, transfer, circuit control, and protection. They can split the main trunk cable into multiple smaller cables to meet the power supply needs of different loads. They can provide transfer when the cable length is insufficient or there are too many joints, improving line safety. They can be equipped with secondary equipment such as fuses, knife switches, and indicator lights to realize overcurrent, short circuit, and grounding protection. Distribution boxes with switches or circuit breakers can also realize functions such as switching, remote control, and automation.

[0003] Busbars are metal conductors inside cable distribution boxes used to connect incoming lines, outgoing lines, and switches in various circuits. They are usually made of flat copper or aluminum and serve to transmit, distribute, and withstand short circuits. They are the core components for power system distribution, protection, and monitoring. Existing busbars are usually installed on the base using bolt connections, which has problems such as inconvenient disassembly and poor insulation. Therefore, it is necessary to design an insulating pressure plate for the base of the cable distribution box to improve the connection stability and arc insulation performance of the busbars and improve the ease of disassembly and assembly. Utility Model Content

[0004] To solve the above problems, this utility model provides an insulating pressure plate for the base of a cable branch box, which facilitates the disassembly and installation of the busbar and has good insulation performance.

[0005] The present invention provides an insulating pressure plate for a cable branch box base, comprising a heat dissipation plate retaining groove and a plurality of busbar receiving areas evenly distributed inside the heat dissipation plate retaining groove. Adjacent busbar receiving areas form a pressure plate connection area. The insulating pressure plate is connected to the base at one point in the pressure plate connection area, and the busbar body is clamped onto the base through the busbar receiving area. The busbar receiving area includes a busbar retaining groove located in the middle and support plate receiving grooves located on both sides of the busbar retaining groove. The height of the support plate receiving groove is less than the height of the busbar retaining groove.

[0006] Furthermore, an auxiliary receiving groove is provided between the busbar mounting groove and the support plate receiving groove. The height of the auxiliary receiving groove is less than the height of the busbar mounting groove but greater than the height of the support plate receiving groove.

[0007] Furthermore, the inner diameter of the busbar retaining groove is smaller than the inner diameter of the auxiliary receiving groove, and the inner diameter of the auxiliary receiving groove is smaller than the inner diameter of the support plate receiving groove; the auxiliary receiving groove and the support plate receiving groove are stepped.

[0008] Furthermore, the heat sink mounting slot is a blind slot structure opened on the outer wall of the insulating pressure plate. The lower end of the heat sink mounting slot extends to the bottom end of the insulating pressure plate and forms a lower insertion port. The inner diameter of the heat sink mounting slot gradually increases from top to bottom.

[0009] Furthermore, heat dissipation plate slot group one and heat dissipation plate slot group two are respectively provided on both sides of the insulating pressure plate along its length, and the busbar receiving area is located between heat dissipation plate slot group one and heat dissipation plate slot group two.

[0010] Furthermore, the first heat sink slot assembly includes two heat sink mounting slots evenly opened on both side walls in the width direction of the insulating pressure plate, and the second heat sink slot assembly includes two heat sink mounting slots evenly opened on both side walls in the width direction of the insulating pressure plate.

[0011] Furthermore, a weight-reducing groove 1 is provided from bottom to top in the busbar accommodating area, and a weight-reducing groove 2 is provided from bottom to top in the pressure plate connecting area 1; a support column is included between the weight-reducing groove 1 and the weight-reducing groove 2.

[0012] Furthermore, the middle part of the weight reduction groove 2 includes a connecting column 1 parallel to the support column; the connecting column 1 is matched with the base and has a connecting hole 1, the support column is matched with the base and has a connecting hole 2, and connecting bolt 1 and connecting bolt 2 are respectively provided in the connecting hole 1 and connecting hole 2.

[0013] Furthermore, the portion of the insulating pressure plate located outside the heat sink mounting groove has a weight-reducing groove three from bottom to top, and a connecting post two is included between the weight-reducing groove three and the weight-reducing groove one.

[0014] Furthermore, a heat sink mounting slot is provided on the outer wall of the connecting post two; a connecting hole three is provided in the middle of the connecting post two to match the base, and a connecting bolt three is provided in the connecting hole three.

[0015] Compared with the prior art, the present invention can achieve the following beneficial effects: the insulating pressure plate in this solution can clamp the busbar onto the base through the busbar locking groove, the support plate receiving groove can accommodate the support seat at the lower end of the busbar and cooperate with the support seat to improve the support strength, and the auxiliary receiving groove can cooperate with the busbar locking groove to realize the installation of T-type busbar, which has strong versatility and applicability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the insulating pressure plate provided according to an embodiment of the present utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the insulating pressure plate provided according to an embodiment of the present utility model. Figure 2 ; Figure 3 This is a schematic diagram of the T-type busbar structure; Figure 4This is a schematic diagram of the installation of the insulating pressure plate.

[0017] The reference numerals in the attached drawings include: 1. Busbar receiving area; 2. Pressure plate connection area 1; 3. Heat sink plate slot; 4. Busbar slot; 5. Support plate receiving slot; 6. Lower insertion port; 7. Heat sink plate slot group 1; 8. Heat sink plate slot group 2; 9. Weight reduction slot 1; 10. Weight reduction slot 2; 11. Weight reduction slot 3; 12. Support column; 13. Auxiliary receiving slot; 14. Connecting column 1; 15. Connecting column 2; 16. Connecting hole 1; 17. Connecting hole 2; 18. Connecting hole 3. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description is provided in conjunction with the appendix. Figure 1-4 The present invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and do not constitute a limitation thereof.

[0019] An insulating pressure plate for a cable branch box base includes a heat dissipation plate retaining groove 3 and multiple busbar receiving areas 1 evenly distributed inside the heat dissipation plate retaining groove 3. A pressure plate connection area 2 is formed between adjacent busbar receiving areas 1. The insulating pressure plate is connected to the base at the pressure plate connection area 2. The busbar body is clamped onto the base through the busbar receiving area 1. The busbar is clamped onto the base by the insulating pressure plate. The insulating pressure plate can be directly locked to the base. No other connection structure is needed on the busbar and other components. Disassembly is convenient and the structure is simple.

[0020] The busbar receiving area 1 includes a busbar mounting slot 4 in the middle and support plate receiving slots 5 on both sides of the busbar mounting slot 4. The height of the support plate receiving slots 5 is less than the height of the busbar mounting slot 4. An auxiliary receiving slot 13 is also provided between the busbar mounting slot 4 and the support plate receiving slots 5. The height of the auxiliary receiving slot 13 is less than the height of the busbar mounting slot 4, but greater than the height of the support plate receiving slots 5. The inner diameter of the busbar mounting slot 4 is smaller than the inner diameter of the auxiliary receiving slot 13, and the inner diameter of the auxiliary receiving slot 13 is smaller than the inner diameter of the support plate receiving slot 5. The auxiliary receiving slot 13 and the support plate receiving slot 5 are stepped. In this embodiment, a rectangular busbar is used. When using a rectangular busbar, it is simply placed in the busbar mounting slot 4. Figure 3 When the T-shaped busbar shown is used, part A of the T-shaped busbar can be accommodated in the auxiliary accommodating groove 13, and part B can be locked in the busbar locking groove 4. This insulating pressure plate structure has strong versatility. At the same time, the support plate accommodating groove 5 can cooperate with the support plate structure on the base to improve the support strength, and the auxiliary accommodating groove 13 and the support plate accommodating groove 5 facilitate ventilation and heat dissipation.

[0021] The heat sink mounting slot 3 is a blind slot structure opened on the outer wall of the insulating pressure plate. The lower end of the heat sink mounting slot 3 extends to the bottom end of the insulating pressure plate and forms a lower insertion port 6. The inner diameter of the heat sink mounting slot 3 gradually increases from top to bottom. The heat sink on the base can be inserted into the heat sink mounting slot 3 from bottom to top. The gradual increase in the inner diameter of the heat sink mounting slot 3 from top to bottom can make the heat sink connection more stable and prevent it from falling out.

[0022] The insulating pressure plate has heat dissipation plate slot group 1 (7) and heat dissipation plate slot group 2 (8) respectively on both sides along its length. The busbar receiving area 1 is located between heat dissipation plate slot group 1 (7) and heat dissipation plate slot group 2 (8). Heat dissipation plate slot group 1 (7) includes two heat dissipation plate mounting slots 3 evenly opened on both side walls along the width of the insulating pressure plate. Heat dissipation plate slot group 2 (8) includes two heat dissipation plate mounting slots 3 evenly opened on both side walls along the width of the insulating pressure plate. The arrangement of heat dissipation plate slot group 1 (7) and heat dissipation plate slot group 2 (8) improves the versatility of the heat dissipation plate, allowing the heat dissipation plate to be mounted in any set of slots by changing their positions. When heat dissipation plates are needed on both sides, heat dissipation plates can be installed in both heat dissipation plate slot group 1 (7) and heat dissipation plate slot group 2 (8). The length of the insulating pressure plate is... Figure 1 In the direction shown by M, the width direction of the insulating pressure plate is... Figure 2 The direction shown in N.

[0023] The busbar receiving area 1 has a weight reduction groove 9 from bottom to top, the pressure plate connecting area 2 has a weight reduction groove 10 from bottom to top, and the part of the insulating pressure plate located outside the heat dissipation plate mounting groove 3 has a weight reduction groove 11 from bottom to top. By using the weight reduction groove 9, weight reduction groove 10 and weight reduction groove 11, the weight of the insulating pressure plate can be reduced while ensuring the performance of the insulating pressure plate, thus saving materials.

[0024] The first weight-reducing groove 9 and the second weight-reducing groove 10 include a support column 12. The middle part of the second weight-reducing groove 10 includes a connecting column 14 parallel to the support column 12. The third weight-reducing groove 11 and the first weight-reducing groove 9 include a connecting column 2 15. The connecting column 14, the connecting column 2 15 and the support column 12 can ensure the connection strength of the insulating pressure plate while reducing weight, and facilitate ventilation and heat dissipation.

[0025] Connecting post 14 is matched with the base and has a connecting hole 16. Support post 12 is matched with the base and has a connecting hole 2 17. Connecting bolt 1 and connecting bolt 2 are respectively installed in connecting hole 16 and connecting hole 2 17. Heat sink plate slot 3 is opened on the outer wall of connecting post 2 15. Connecting post 2 15 is matched with the base and has a connecting hole 3 18. Connecting bolt 3 is installed in connecting hole 3 18. The insulating pressure plate can be stably connected to the base through connecting hole 16, connecting hole 2 17 and connecting hole 3 18, and the busbar can be clamped by the insulating pressure plate.

[0026] When using, such as Figure 4 As shown, Figure 4 A represents the busbar, B represents the insulating pressure plate, C represents the base, and D represents the support plate body. The support plate body is located on the upper end of the base, and the busbar is located in the middle of the support plate body and is parallel to the support plate body. The insulating pressure plate is perpendicular to both the busbar and the support plate body. The insulating pressure plate is pressed against the upper end of each busbar to press the busbar onto the support plate body and the base.

[0027] Although embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

[0028] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. An insulating pressure plate for a cable branch box base, characterized in that, It includes a heat sink slot (3) and multiple busbar receiving areas (1) evenly distributed inside the heat sink slot (3). A pressure plate connection area (2) is formed between adjacent busbar receiving areas (1). An insulating pressure plate is connected to the base at the pressure plate connection area (2). The busbar body is clamped to the base through the busbar receiving area (1). The busbar receiving area (1) includes a busbar slot (4) located in the middle and a support plate receiving slot (5) located on both sides of the busbar slot (4). The height of the support plate receiving slot (5) is less than the height of the busbar slot (4).

2. The insulating pressure plate of the cable branch box base according to claim 1, characterized in that, An auxiliary receiving (13) is also provided between the busbar locking groove (4) and the support plate receiving groove (5). The height of the auxiliary receiving (13) is less than the height of the busbar locking groove (4) and greater than the height of the support plate receiving groove (5).

3. The insulating pressure plate of the cable branch box base according to claim 2, characterized in that, The inner diameter of the busbar slot (4) is smaller than the inner diameter of the auxiliary container (13), and the inner diameter of the auxiliary container (13) is smaller than the inner diameter of the support plate receiving slot (5); the auxiliary container (13) and the support plate receiving slot (5) are stepped.

4. The insulating pressure plate of the cable branch box base according to claim 3, characterized in that, The heat sink mounting groove (3) is a blind groove structure opened on the outer wall of the insulating pressure plate. The lower end of the heat sink mounting groove (3) extends to the bottom end of the insulating pressure plate and forms a lower insertion port (6). The inner diameter of the heat sink mounting groove (3) gradually increases from top to bottom.

5. The insulating pressure plate of the cable branch box base according to claim 4, characterized in that, The insulating pressure plate has heat dissipation plate slot group one (7) and heat dissipation plate slot group two (8) respectively on both sides along its length. The busbar receiving area (1) is located between heat dissipation plate slot group one (7) and heat dissipation plate slot group two (8).

6. The insulating pressure plate of the cable branch box base according to claim 5, characterized in that, The first heat sink slot group (7) includes two heat sink slots (3) evenly opened on both sides of the insulating pressure plate in the width direction, and the second heat sink slot group (8) includes two heat sink slots (3) evenly opened on both sides of the insulating pressure plate in the width direction.

7. The insulating pressure plate of the cable branch box base according to claim 6, characterized in that, The busbar receiving area (1) is provided with a weight reduction groove 1 (9) from bottom to top, and the pressure plate connecting area 1 (2) is provided with a weight reduction groove 2 (10) from bottom to top; a support column (12) is included between the weight reduction groove 1 (9) and the weight reduction groove 2 (10).

8. The insulating pressure plate of the cable branch box base according to claim 7, characterized in that, The middle part of the weight reduction groove 2 (10) includes a connecting column 1 (14) parallel to the support column (12); the connecting column 1 (14) is matched with the base and has a connecting hole 1 (16), the support column (12) is matched with the base and has a connecting hole 2 (17), and connecting bolt 1 and connecting bolt 2 are respectively provided in the connecting hole 1 (16) and the connecting hole 2 (17).

9. The insulating pressure plate of the cable branch box base according to claim 8, characterized in that, The portion of the insulating pressure plate located outside the heat sink mounting groove (3) has a weight reduction groove three (11) from bottom to top, and a connecting post two (15) is included between the weight reduction groove three (11) and the weight reduction groove one (9).

10. The insulating pressure plate of the cable branch box base according to claim 9, characterized in that, The heat sink slot (3) is opened on the outer wall of the connecting column 2 (15); the middle part of the connecting column 2 (15) is matched with the base and a connecting hole 3 (18) is provided, and a connecting bolt 3 is provided in the connecting hole 3 (18).

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