A copper-aluminum transition busbar

Abstract

This application relates to a copper-aluminum transition busbar, comprising a first copper-aluminum transition busbar, which includes two horizontal sections and a semi-annular section disposed between the two horizontal sections. It also includes two second copper-aluminum transition busbars, each of which is inserted into one of the two horizontal sections. Each second copper-aluminum transition busbar has a slot for sliding engagement with the horizontal sections, and a locking element for securing the horizontal sections. By sliding the horizontal sections of the first copper-aluminum transition busbar into the slots of the second copper-aluminum transition busbars, and supplementing this with the locking elements, the overall length of the conductive busbar can be adjusted, making adjustment convenient and highly adaptable.

Description

Technical Field

[0001] This utility model relates to the field of copper-aluminum transition busbar technology, and in particular to a copper-aluminum transition busbar. Background Technology

[0002] In power systems, copper-aluminum transition busbars are mainly used for the transition connection between copper busbars and aluminum busbars. Existing patent number CN211376948U discloses a power-specific copper-aluminum busbar transition busbar, comprising an aluminum substrate. The aluminum substrate includes a left section aluminum plate, a middle section aluminum plate, and a right section aluminum plate. Copper cladding plates are fixed to the upper and lower surfaces of the right section aluminum plate. The left and right sections aluminum plates are respectively provided with four first through holes and four second through holes. This busbar has a fixed length, which cannot be flexibly adjusted according to actual usage scenarios, resulting in poor adaptability and limited practicality. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a copper-aluminum transition busbar.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a copper-aluminum transition strip, including a first copper-aluminum transition strip, the first copper-aluminum transition strip including two horizontal sections and a semi-annular section disposed between the two horizontal sections, and also including two second copper-aluminum transition strips, the two second copper-aluminum transition strips being respectively inserted and engaged with the two horizontal sections, the second copper-aluminum transition strips being provided with slots for sliding engagement with the horizontal sections, and the second copper-aluminum transition strips being provided with locking members for locking the horizontal sections.

[0005] As a preferred embodiment, the upper end of the horizontal segment is provided with a first guide protrusion along its length direction, and the inner wall of the slot is provided with a first sliding groove that cooperates with the first guide protrusion.

[0006] As a preferred embodiment, the locking component includes a locking bolt, a threaded through hole that mates with the locking bolt on the second copper-aluminum transition strip, and a threaded countersunk hole that mates with the locking bolt on the first guide protrusion.

[0007] As a preferred embodiment, the lower end of the horizontal section is provided with a second guide protrusion along its length direction, and the inner wall of the slot is provided with a second sliding groove that cooperates with the second guide protrusion.

[0008] As a preferred embodiment, the horizontal segment and the semi-circular segment are manufactured as a single piece.

[0009] As a preferred embodiment, the second copper-aluminum transition strip is provided with a connecting through hole, which penetrates the second copper-aluminum transition strip along the thickness direction.

[0010] As a preferred embodiment, the upper end of the second copper-aluminum transition strip is provided with multiple first heat sinks.

[0011] As a preferred embodiment, the outer wall of the semi-annular segment is provided with a plurality of second heat sinks.

[0012] As a preferred embodiment, the first heat sink is a copper sheet or an aluminum sheet.

[0013] As a preferred embodiment, the second heat sink is a copper sheet or an aluminum sheet.

[0014] The beneficial effects of this application are as follows: 1. By sliding the horizontal section of the first copper-aluminum transition strip with the slot of the second copper-aluminum transition strip and supplementing it with a locking component, the overall length of the conductive strip can be adjusted, which is convenient and has strong applicability.

[0015] 2. The straightness of the insertion process is ensured by the cooperation of the guide protrusion and the slide groove, which guarantees the smoothness, accuracy and alignment of the sliding process, prevents misalignment and ensures good contact.

[0016] 3. The locking bolt acts directly on the threaded countersunk hole on the first guide protrusion through the thread, providing a reliable and repeatable tightening force, ensuring a stable connection and preventing vibration and loosening after adjustment.

[0017] 4. The horizontal section and the semi-circular section are made as one piece, eliminating potential weak points and contact resistance at this critical connection point, and ensuring the strength and conductivity of the main structure.

[0018] 5. A first heat sink is installed at the upper end of the second copper-aluminum transition strip, and a second heat sink is installed on the outer wall of the semi-annular section. This effectively increases the heat dissipation surface area, which helps to reduce the temperature rise during high-current operation, improve current carrying capacity and long-term operational reliability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a partial sectional view of the present invention.

[0021] Figure 3 This is a side view of the second copper-aluminum transition row in this utility model.

[0022] Figure 4 This is a top view of the second copper-aluminum transition row in this utility model.

[0023] Figure 5 This is a top view of the first copper-aluminum transition row in this utility model.

[0024] Figure 6 This is a schematic diagram of the structure of the first heat sink in this utility model.

[0025] Illustration markings: 1. First copper-aluminum transition row, 11. Semi-circular segment, 12. Horizontal segment, 121. First guide protrusion, 122. Threaded countersunk hole, 2. Second copper-aluminum transition row, 21. Slot, 22. First slide groove, 23. Second slide groove, 24. Connecting through hole, 3. Locking element, 4. First heat sink, 5. Second heat sink. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] Please see Figure 1-5 This utility model provides a copper-aluminum transition strip, including a first copper-aluminum transition strip 1. The first copper-aluminum transition strip 1 includes two horizontal sections 12 and a semi-annular section 11 disposed between the two horizontal sections 12. It also includes two second copper-aluminum transition strips 2, which are respectively inserted into the two horizontal sections 12. The second copper-aluminum transition strips 2 are provided with slots 21 that slide with the horizontal sections 12, and are also provided with locking members 3 for locking the horizontal sections 12. By setting the semi-annular section, the installation is avoided from sometimes needing to cross the cable structure due to the complex internal wiring structure, thus improving the stability of the installation structure.

[0028] The horizontal segment 12 has a first guide protrusion 121 along its length at its upper end, and a first sliding groove 22 that mates with the first guide protrusion 121 is provided on the inner wall of the slot 21. The horizontal segment 12 has a second guide protrusion along its length at its lower end, and a second sliding groove 23 that mates with the second guide protrusion is provided on the inner wall of the slot 21. It should be noted that any parts not described in detail in this application are prior art. By cooperating with the first guide protrusion 121 and the first sliding groove 22, and with the second guide protrusion and the second sliding groove 23, dual guidance is achieved, ensuring the straightness of the insertion process, guaranteeing the smoothness, accuracy, and alignment of the sliding process, preventing misalignment, and ensuring good contact.

[0029] Specifically, the locking component 3 includes a locking bolt, a threaded through hole on the second copper-aluminum transition strip 2 that mates with the locking bolt, and a threaded countersunk hole 122 on the first guide protrusion 121 that mates with the locking bolt. The locking bolt acts directly on the threaded countersunk hole 122 on the first guide protrusion 121 through its threads, providing a reliable and repeatable tightening force, ensuring stable connection and resistance to vibration and loosening after adjustment.

[0030] Furthermore, the horizontal segment 12 and the semi-circular segment 11 are integrally formed. This eliminates potential weak points and contact resistance at this critical connection point, ensuring the strength and conductivity of the main structure. The second copper-aluminum transition busbar 2 is provided with a connecting through-hole 24, which penetrates the second copper-aluminum transition busbar 2 along its thickness direction. The connecting through-hole 24 on the second copper-aluminum transition busbar 2 facilitates connection and fixation to the busbar. The connecting through-hole 24 is used to connect and fix the second copper-aluminum transition busbar 2 to the busbar via bolts.

[0031] Of course, this utility model is not limited to the embodiments described above. Several other embodiments based on the design concept of this utility model are also provided below.

[0032] For example, in other embodiments, unlike the embodiments described above, such as... Figure 6 As shown. The upper end of the second copper-aluminum transition busbar 2 is provided with multiple first heat sinks 4. The first heat sinks 4 are copper or aluminum sheets. Multiple second heat sinks 5 are provided on the outer wall of the semi-annular section 11. The second heat sinks 5 are copper or aluminum sheets. The first heat sinks 4 are welded to the second copper-aluminum transition busbar 2, and the semi-annular section 11 is welded to the second heat sinks 5. The first heat sinks 4 are provided at the upper end of the second copper-aluminum transition busbar 2, and the second heat sinks 5 are provided on the outer wall of the semi-annular section 11, effectively increasing the heat dissipation surface area, which helps to reduce the temperature rise during high-current operation, improve current carrying capacity, and enhance long-term operational reliability.

[0033] Before use, adjust the length of the entire conductive busbar according to the actual usage environment. When adjusting, slide the second copper-aluminum transition busbar 2 along the horizontal section 12 to adjust the total length. After adjusting to the appropriate length, align the threaded through hole with the target threaded countersunk hole 122, screw in the locking bolt to complete the fixation. The length adjustment of the conductive busbar is now complete.

[0034] It should be noted that the above embodiments are only used to illustrate the present utility model, but the present utility model is not limited to the above embodiments. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A copper-aluminum transition busbar, comprising a first copper-aluminum transition busbar (1), the first copper-aluminum transition busbar (1) comprising two horizontal sections (12) and a semi-annular section (11) disposed between the two horizontal sections (12), characterized in that, It also includes two second copper-aluminum transition bars (2), which are respectively inserted into two horizontal sections (12). The second copper-aluminum transition bars (2) are provided with slots (21) that slide with the horizontal sections (12). The second copper-aluminum transition bars (2) are also provided with locking parts (3) for locking the horizontal sections (12).

2. The copper-aluminum transition busbar according to claim 1, characterized in that, The upper end of the horizontal section (12) is provided with a first guide protrusion (121) along its length direction, and the inner wall of the slot (21) is provided with a first sliding groove (22) that cooperates with the first guide protrusion (121).

3. A copper-aluminum transition busbar according to claim 2, characterized in that, The locking component (3) includes a locking bolt, a threaded through hole that mates with the locking bolt on the second copper-aluminum transition row (2), and a threaded countersunk hole (122) that mates with the locking bolt on the first guide protrusion (121).

4. The copper-aluminum transition busbar according to claim 1, characterized in that, The lower end of the horizontal section (12) is provided with a second guide protrusion along its length direction, and the inner wall of the slot (21) is provided with a second sliding groove (23) that cooperates with the second guide protrusion.

5. A copper-aluminum transition busbar according to claim 1, characterized in that, The horizontal segment (12) and the semi-circular segment (11) are made as a single piece.

6. A copper-aluminum transition busbar according to claim 1, characterized in that, The second copper-aluminum transition row (2) is provided with a connecting through hole (24), which penetrates the second copper-aluminum transition row (2) along the thickness direction.

7. A copper-aluminum transition busbar according to claim 1, characterized in that, The upper end of the second copper-aluminum transition bar (2) is provided with multiple first heat sinks (4).

8. A copper-aluminum transition busbar according to claim 1, characterized in that, Multiple second heat sinks (5) are provided on the outer wall of the semi-annular segment (11).

9. A copper-aluminum transition busbar according to claim 7, characterized in that, The first heat sink (4) is a copper sheet or an aluminum sheet.

10. A copper-aluminum transition busbar according to claim 8, characterized in that, The second heat sink (5) is a copper sheet or an aluminum sheet.

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