On-site rapid cable connection structure

Abstract

The utility model discloses an on-site rapid cable connection structure, and relates to the technical field of electric power systems, the cable connection structure is used as a cable connection piece in an electric cabinet, the cable connection structure comprises an upper copper bar, a middle copper bar and a lower copper bar, the top end of the upper copper bar is provided with three first top connection holes which are horizontally arranged, and the middle copper bar is provided with three second top connection holes. Three first middle connecting holes are horizontally formed in the middle of the upper copper bar, four upper mounting holes are formed in the bottom ends of the first middle connecting holes, upper detection holes are formed in the two sides of the middle of each upper mounting hole, an upper connecting plate is arranged at the bottom end of the upper copper bar, the upper connecting plate is fixedly connected with the bottom end of the upper copper bar, and the upper connecting plate is inclined by 45 degrees; a first bottom connecting hole is formed in the upper connecting plate, and upper connecting bolt counterbores are formed in the top end and the bottom end of the first bottom connecting hole.

Description

Technical Field

[0001] This utility model relates to the field of power system technology, specifically a field fast cable connection structure. Background Technology

[0002] Currently, the connection methods for domestic load external / DC high current (1000A and above) loads are basically divided into two types: long-term fixed method: generally using welding or crimping, connected by bolts / nuts; and connection method that needs to be frequently disconnected: generally using quick-plug connection method, or using output copper busbar with mounting holes and copper lug connection method.

[0003] The quick-connect connectors can have poor contact issues: because the quick-connect sockets require force to insert inwards during connection, and after being fully inserted, the plug needs to be rotated forcefully to the right until it is locked in place by feel. The cable needs to be pulled outwards to confirm that the plug and socket are locked. If the force is insufficient and the locked position is not detected, coupled with the reverse twisting and springing phenomenon of the cable when the plug is inserted, the cable plug connection can easily become loose or completely detached. In this case, the cable plug needs to be reinserted and confirmed to be correct before the connection is normal. This can also easily cause loosening when tidying up cables on the ground, and when multiple cables need to be laid on site, it takes a long time. Summary of the Invention

[0004] The purpose of this invention is to provide a field-based rapid cable connection structure to solve the problems raised in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a field-based rapid cable connection structure, which serves as a cable connector in an electrical cabinet. The cable connection structure includes an upper copper busbar, a middle copper busbar, and a lower copper busbar. The top of the upper copper busbar has a first top connection hole, which has three horizontally arranged holes. The middle of the upper copper busbar has a first middle connection hole, which also has three horizontally arranged holes. The bottom of the first middle connection hole has four upper mounting holes. The middle of the upper mounting holes has upper detection holes on both sides. The bottom of the upper copper busbar has an upper connecting plate, which is fixedly connected to the bottom of the upper copper busbar. The upper connecting plate is inclined at 45° and has a first bottom connection hole. The top and bottom of the first bottom connection hole have countersunk holes for upper connecting bolts.

[0006] The upper, middle, and lower copper busbars are interconnected and installed in a trapezoidal shape, with the upper copper busbar at the top and the lower copper busbar at the bottom. The upper copper busbar has three horizontally positioned top connecting holes for connecting to the copper lug bolts, with the upper end of the hole slightly higher than the horizontal line of the contact surface at the tail end of the national standard copper lug. The middle connecting holes have three horizontally positioned holes for mates with the middle copper busbar. The upper mounting holes have the same number of top and middle connecting holes as the insulator bolts. The upper connecting plate extends from the upper copper busbar. The upper connecting plate has three horizontally positioned bottom connecting holes for connecting to the copper lug bolts. Both the top and bottom connecting holes have three holes. The upper mounting holes have four holes, divided into two groups of two, with two upper inspection holes between the two groups. The upper connecting bolt countersunk holes have four holes, also divided into two groups, for bolt connection and fixing of the plate.

[0007] Furthermore, a second top connection hole is provided at the top of the middle copper busbar, and three of the second top connection holes are horizontally arranged. A second middle connection hole is provided in the middle of the middle copper busbar, and three of the second middle connection holes are horizontally arranged. Four first middle mounting holes are provided at the bottom of the second middle connection holes. Middle detection holes are provided on both sides of the middle of the first middle mounting holes. A second middle mounting hole is provided at the bottom of the first middle mounting holes. A middle connecting plate is provided at the bottom of the middle copper busbar. The middle connecting plate is fixedly connected to the bottom of the middle copper busbar. The middle connecting plate is inclined at 45° and has a second bottom connection hole. The top and bottom of the second bottom connection hole have countersunk holes for middle connecting bolts.

[0008] Its second top connecting hole is used to connect with the copper lug bolt. The height of the upper end of the hole is slightly greater than the horizontal line of the contact surface of the tail end of the national standard copper lug. The second middle connecting hole is also used to connect with the copper lug bolt. There are four first middle mounting holes, divided into two groups, two in each group. There is a middle inspection hole between the two groups. The first middle mounting hole is used to bolt the insulator. There are two second mounting holes. Their function and hole diameter are the same as the first middle mounting holes. The middle connecting plate is fixedly connected to the bottom end of the middle copper busbar. The second bottom connecting hole is used to bolt the copper lug. The countersunk hole of the middle connecting bolt is the same as the countersunk hole of the upper connecting bolt.

[0009] Furthermore, a third top connection hole is provided at the top of the lower copper busbar. There are three horizontally arranged third top connection holes. There are four first bottom mounting holes at the bottom of the third top connection hole. There are lower detection holes on both sides of the middle of the first bottom mounting holes. There are second bottom mounting holes at the bottom of the first bottom mounting holes. There is a lower connecting plate at the bottom of the lower copper busbar. The lower connecting plate is fixedly connected to the bottom of the lower copper busbar. The middle connecting plate is inclined at 45°. There is a third bottom connection hole on the lower connecting plate. There are countersunk holes for bottom connecting bolts at the top and bottom of the third bottom connection hole.

[0010] The third top connection hole has three horizontally arranged holes for connection with the copper lug bolt. The upper end of the lower copper busbar is above the horizontal line of the contact surface of the copper lug. The first bottom mounting hole has four holes divided into two groups of two. The top of the upper row of insulators is 10mm lower than the bottom of the copper lug. The first bottom mounting hole is used for bolt connection of the insulator. The bottom of the first bottom mounting hole also has a second bottom mounting hole. The second bottom mounting hole has four holes divided into upper and lower groups. The diameter of the second bottom mounting hole is the same as that of the first bottom mounting hole. The lower connecting plate is fixedly connected to the bottom end of the lower copper busbar. The surface of the lower connecting plate has a third bottom connection hole, which is the same as the first connection hole. The countersunk hole of the bottom connecting bolt is the same as the countersunk hole of the top connecting bolt.

[0011] Furthermore, the upper connecting plate, the middle connecting plate, and the lower connecting plate are bolted together at their bottom ends to fix the plate.

[0012] The upper connecting plate is 90mm, the middle connecting plate is 105mm, and the lower connecting plate is 120mm. When the upper, middle, and lower copper busbars are connected, the ends of the upper, middle, and lower connecting plates are on the same plane and are equidistant. The upper copper lug of the lower copper busbar and the rear copper lug of the upper copper busbar directly connect and interfere with each other. Therefore, a copper busbar fixing plate 7 needs to be added to facilitate wiring. This fixing plate consists of a connecting plate, connecting bolts, and an anti-detachment cover. Figure 6 As shown, after the fixed plate is connected, the connecting bolt will be fixed at the first bottom connecting hole in the upper connecting plate. The middle connecting plate is the same as the lower connecting plate. At this time, the worker directly connects the copper lug to the connecting bolt and then tightens the nut. At this time, the bolt will not fall off, and the bolt and nut will not rotate at the same time. With the help of an electric wrench or a manual ratchet wrench, the purpose of quick wiring can be achieved. Then, the upper connecting plate, middle connecting plate and lower connecting plate are respectively placed at a 45° angle to facilitate wiring.

[0013] Furthermore, an insulator is provided on one side of the lower copper busbar.

[0014] The copper busbar is connected to the rear support frame by insulators. Besides their insulating function, these insulators primarily bear the weight of the copper busbar, the weight of the connected load cables, and the drag force generated during cable laying. Four insulators are located on one side of the lower copper busbar. The first insulator's connection end is connected to the first group of upper mounting holes, the first group of middle mounting holes, and the first group of bottom mounting holes. The second insulator's connection end is connected to the second group of upper mounting holes, the second group of middle mounting holes, and the second group of bottom mounting holes. The third insulator's connection end is connected to the second group of middle mounting holes and the first group of bottom mounting holes. The fourth insulator... The sub-connecting end is connected to the second group of the second bottom mounting holes. Then, the diameters of the first top connecting hole, the first middle connecting hole, the first bottom connecting hole, the second top connecting hole, the second middle connecting hole, the second bottom connecting hole, the third top connecting hole, and the third bottom connecting hole are all 13mm. Then, the diameters of the upper mounting hole, the first middle mounting hole, the second middle mounting hole, and the first bottom mounting hole are all 10mm. The diameter of the second bottom mounting hole is 9mm. The diameters of the upper inspection hole, the middle inspection hole, and the lower inspection hole are all 7mm. The diameters of the upper connecting bolt countersunk hole, the middle connecting bolt countersunk hole, and the bottom connecting bolt countersunk hole are all 7mm.

[0015] Furthermore, the length of the upper copper busbar is set to 441mm, the length of the middle copper busbar is set to 601mm, and the length of the lower copper busbar is set to 561mm.

[0016] The upper copper busbar, middle copper busbar and lower copper busbar are connected. The upper mounting hole of the upper copper busbar is aligned with the first mounting hole of the middle copper busbar. Then the second mounting hole of the middle copper busbar is aligned with the first bottom mounting hole. After they are installed together, the top surface of the upper copper busbar and the top surface of the middle copper busbar are on the same horizontal plane.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. When the copper busbar and copper lug are connected by bolts in this utility model, the reliability of the connection can be fully guaranteed as long as the bolts and nuts are tightened properly.

[0019] 2. When a large current load passes through, and multiple load cables are required for each phase copper busbar, this utility model adopts a multi-layer copper busbar stacking connection method to meet the current demand. After each layer of copper busbar is bent and separated, multiple load cables can be connected.

[0020] 3. To facilitate the connection between the copper busbar and the lug, this utility model adopts the following two methods: 1. The lower end of the segmented copper busbar is folded upward at a 45-degree angle on the connection surface; 2. A bolt and nut fixing plate is set at the lower part of the wiring hole of the copper busbar lug, so that one hand can hold the copper lug end of the cable and connect it to the copper busbar, and the other hand can connect the nut and the bolt, and then use an electric wrench to tighten the nut.

[0021] 4. The bolt installed at the lower part of the output copper busbar in this utility model allows it to be fixed without the need for hand or tools during use. It does not rotate with the locking nut of the copper lug. A steel plate can be added to the rear of the copper busbar. A hexagonal hole slightly larger than the nut is cut into the bolt head on the plate. A plate to prevent the bolt from falling off is welded to the rear. A tapping fixing hole is made on the plate to connect and fix it to the copper busbar. A connecting hole is made at the connection between the copper busbar and the copper lug. At the same time, four countersunk holes are made on the copper busbar to connect with the bolt fixing plate. The position of the countersunk holes should avoid the connection surface of the copper lug to avoid affecting the current carrying capacity, thereby fully meeting the requirements of high current carrying capacity. While improving reliability, it also facilitates the connection of the cable.

[0022] 5. The connecting bolts of this utility model are common and easily damaged parts that need to be replaced frequently. When replacing the bolts, simply remove the four bolt fixing screws on the copper busbar and replace them with new bolts. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the upper connecting plate of this utility model;

[0025] Figure 3 This is a schematic diagram of the upper copper busbar of this utility model;

[0026] Figure 4 This is a schematic diagram of the copper busbar in this utility model;

[0027] Figure 5 This is a schematic diagram of the lower copper busbar of this utility model;

[0028] Figure 6 This is a structural schematic diagram of the fixing plate of this utility model.

[0029] In the diagram: 1. Upper copper busbar; 11. First top connection hole; 12. First middle connection hole; 13. Upper mounting hole; 14. Upper inspection hole; 2. Upper connecting plate; 21. First bottom connection hole; 22. Upper connecting bolt countersunk hole; 3. Middle copper busbar; 31. Second top connection hole; 32. Second middle connection hole; 33. First middle mounting hole; 34. Middle inspection hole; 35. Second middle mounting hole; 4. Middle connecting plate; 41. Second bottom connection hole; 42. Middle connecting bolt countersunk hole; 5. Lower copper busbar; 51. Third top connection hole; 52. First bottom mounting hole; 53. Lower inspection hole; 54. Second bottom mounting hole; 6. Lower connecting plate; 61. Third bottom connection hole; 62. Bottom connecting bolt countersunk hole; 7. Fixing plate. Detailed Implementation

[0030] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] Example: Figures 1-6 As shown, this utility model provides a field quick cable connection structure technical solution. The field quick cable connection structure serves as a cable connector in an electrical cabinet. The cable connection structure includes an upper copper busbar 1, a middle copper busbar 3, and a lower copper busbar 5. The top of the upper copper busbar 1 has a first top connection hole 11 with three horizontally arranged holes. The middle of the upper copper busbar 1 has a first middle connection hole 12 with three horizontally arranged holes. The bottom of the first middle connection hole 12 has four upper mounting holes 13, and upper detection holes 14 are provided on both sides of the middle of the upper mounting holes 13. The bottom of the upper copper busbar 1 has an upper connecting plate 2, which is fixedly connected to the bottom of the upper copper busbar 1. The upper connecting plate 2 is inclined at 45° and has a first bottom connection hole 21. The top and bottom of the first bottom connection hole 21 have upper connecting bolt countersunk holes 22.

[0032] Specifically, the upper copper busbar 1, middle copper busbar 3, and lower copper busbar 5 are interconnected and installed in a trapezoidal shape, with the upper copper busbar 1 at the top and the lower copper busbar 5 at the bottom. The first top connecting hole 11 at the top of the upper copper busbar 1 is used to connect with the copper lug bolt, and three holes are provided horizontally. The height of the upper end of the hole is slightly greater than the horizontal line of the contact surface at the tail end of the national standard copper lug. The first middle connecting hole 12 is used to mate with the middle copper busbar 3, and three holes are provided horizontally. The upper mounting hole 13 is used to connect with the insulator bolt, and its first top connecting hole 11 and the first middle connecting hole... The number of 12 is consistent. The upper connecting plate 2 serves as the extension end of the upper copper busbar 1. The surface of the upper connecting plate 2 is provided with a first bottom connecting hole 21, which is used to connect with the copper lug bolt. There are three of them arranged horizontally. The first top connecting hole 11 and the first bottom connecting hole 21 are both provided with three. The upper mounting hole 13 is provided with four, divided into two groups, one upper and one lower. There are two upper inspection holes 14 between the two groups. The upper inspection hole 14 is provided with two. The upper connecting bolt countersunk hole 22 is provided with four, divided into two groups, for bolt connection and fixing plate 7.

[0033] like Figure 1 , Figure 2 , Figure 4As shown, the top of the middle copper busbar 3 is provided with a second top connection hole 31, and the second top connection hole 31 has three horizontally arranged holes. The middle of the middle copper busbar 3 is provided with a second middle connection hole 32, and the second middle connection hole 32 has three horizontally arranged holes. The bottom of the second middle connection hole 32 is provided with four first middle mounting holes 33. The middle mounting holes 33 have middle detection holes 34 on both sides of the middle of the first middle mounting holes 33. The bottom of the first middle mounting holes 33 is provided with a second middle mounting hole 35. The bottom of the middle copper busbar 3 is provided with a middle connecting plate 4. The middle connecting plate 4 is fixedly connected to the bottom of the middle copper busbar 3. The middle connecting plate 4 is inclined at 45°. The middle connecting plate 4 is provided with a second bottom connection hole 41. The top and bottom of the second bottom connection hole 41 are provided with countersunk holes 42 for middle connecting bolts.

[0034] Specifically, the second top connecting hole 31 is used to connect with the copper lug bolt. The height of the upper end of the hole is slightly greater than the horizontal line of the contact surface at the tail end of the national standard copper lug. The second middle connecting hole 32 is also used to connect with the copper lug bolt. There are four first middle mounting holes 33, divided into two groups, two in each group. There is a middle detection hole 34 between the two groups. The first middle mounting hole 33 is used to bolt the insulator. There are two second middle mounting holes 35. Their function and hole diameter are the same as the first middle mounting hole 33. The middle connecting plate 4 is fixedly connected to the bottom end of the middle copper busbar 3. The second bottom connecting hole 41 is used to bolt the copper lug. The countersunk hole 42 of the middle connecting bolt is the same as the countersunk hole 22 of the upper connecting bolt.

[0035] like Figure 1 , Figure 2 , Figure 5 As shown, the lower copper busbar 5 has a third top connection hole 51 at its top, and the third top connection hole 51 has three horizontally arranged holes. The bottom of the third top connection hole 51 has four first bottom mounting holes 52. The middle two sides of the first bottom mounting holes 52 have lower detection holes 53. The bottom of the first bottom mounting holes 52 has a second bottom mounting hole 54. The bottom of the lower copper busbar 5 has a lower connecting plate 6. The lower connecting plate 6 is fixedly connected to the bottom of the lower copper busbar 5. The connecting plate 4 is inclined at 45°. The lower connecting plate 6 has a third bottom connection hole 61. The top and bottom of the third bottom connection hole 61 have bottom connection bolt countersunk holes 62.

[0036] Specifically, the third top connection hole 51 has three horizontally arranged holes for connection with the copper lug bolt. The upper end of the lower copper busbar 5 is above the horizontal line of the contact surface of the copper lug. The first bottom mounting hole 52 has four holes divided into two groups of two. The top of the upper row of insulators is 10mm lower than the bottom of the copper lug. The first bottom mounting hole 52 is used for bolt connection of the insulator. The bottom of the first bottom mounting hole 52 also has a second bottom mounting hole 54. The second bottom mounting hole 54 has four holes divided into upper and lower groups. The diameter of the second bottom mounting hole 54 is the same as that of the first bottom mounting hole 52. The lower connecting plate 6 is fixedly connected to the bottom end of the lower copper busbar 5. The surface of the lower connecting plate 6 has a third bottom connection hole 61, which is the same as the first connection hole. The bottom connecting bolt countersunk hole 62 is the same as the top connecting bolt countersunk hole.

[0037] like Figure 2 As shown, the upper connecting plate 2, the middle connecting plate 4, and the lower connecting plate 6 are bolted to the bottom of the fixing plate 7.

[0038] Specifically, the upper connecting plate 2 is 90mm long, the middle connecting plate 4 is 105mm long, and the lower connecting plate 6 is 120mm long. When the upper copper busbar 1, the middle copper busbar 3, and the lower copper busbar 5 are connected, the ends of the upper connecting plate 2, the middle connecting plate 4, and the lower connecting plate 6 are on the same plane and are equidistant. The upper copper lug of the lower copper busbar 5 directly connects with the rear copper lug of the upper copper busbar 1, causing mutual interference. Therefore, a copper busbar fixing plate 7 needs to be installed to facilitate wiring. The fixing plate 7 consists of a connecting plate, connecting bolts, and an anti-detachment cover plate. Figure 6 As shown, after the fixing plate 7 is connected, the connecting bolt will be fixed at the first bottom connecting hole 21 in the upper connecting plate 2. The middle connecting plate 4 and the lower connecting plate 6 are the same. At this time, the worker directly connects the copper lug to the connecting bolt and then tightens the nut. At this time, the bolt will not fall off, and the bolt and nut will not rotate at the same time. When used with an electric wrench or a manual ratchet wrench, the purpose of quick wiring can be achieved. Then, the upper connecting plate 2, the middle connecting plate 4 and the lower connecting plate 6 are respectively placed at a 45° angle to facilitate wiring.

[0039] like Figure 2 As shown, an insulator is provided on one side of the lower copper busbar 5.

[0040] Specifically, insulators are connected to the copper busbar and the rear support frame. Besides their insulating function, these insulators primarily bear the weight of the copper busbar, the weight of the connected load cables, and the drag force generated during cable laying. Four insulators are located on one side of the lower copper busbar 5. The first insulator's connecting end is connected to the first group of upper mounting holes 13, the first group of first middle mounting holes 33, and the first group of first bottom mounting holes 52. The second insulator's connecting end is connected to the second group of upper mounting holes 13, the second group of first middle mounting holes 33, and the second group of first bottom mounting holes 52. The third insulator's connecting end is connected to the first group of second middle mounting holes 35 and second bottom mounting holes 54. The fourth insulator's connecting end is connected to the second... The second set of bottom mounting holes 54, then the diameters of its first top connecting hole 11, first middle connecting hole 12, first bottom connecting hole 21, second top connecting hole 31, second middle connecting hole 32, second bottom connecting hole 41, third top connecting hole 51 and third bottom connecting hole 61 are all 13mm. Then the diameters of the upper mounting hole 13, first middle mounting hole 33, second middle mounting hole 34 and first bottom mounting hole 52 are all 10mm. The diameter of the second bottom mounting hole 54 is 9mm. The diameters of the upper inspection hole 14, middle inspection hole 34 and lower inspection hole 53 are all 7mm. The diameters of the upper connecting bolt countersunk hole 22, middle connecting bolt countersunk hole 42 and bottom connecting bolt countersunk hole 62 are all 7mm.

[0041] like Figure 1 , Figure 2 As shown, the length of the upper copper busbar 1 is set to 441mm, the length of the middle copper busbar 3 is set to 601mm, and the length of the lower copper busbar 5 is set to 561mm.

[0042] Specifically, the upper copper busbar 1, the middle copper busbar 3, and the lower copper busbar 5 are connected. The upper mounting hole 13 of the upper copper busbar 1 is aligned with the first mounting hole of the middle copper busbar 3. Then, the second middle mounting hole 35 of the middle copper busbar 3 is aligned with the first bottom mounting hole 52. After they are installed together, the top surface of the upper copper busbar 1 and the top surface of the middle copper busbar 3 are on the same horizontal plane.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A field-mounted rapid cable connection structure, wherein the cable connection structure serves as a cable connector in an electrical cabinet, characterized in that: The cable connection structure includes an upper copper busbar (1), a middle copper busbar (3) and a lower copper busbar (5). The upper copper busbar (1) has a first top connection hole (11) at its top, and the first top connection hole (11) has three horizontally arranged holes. The upper copper busbar (1) has a first middle connection hole (12) in the middle, and the first middle connection hole (12) has three horizontally arranged holes. The bottom of the first middle connection hole (12) has four upper mounting holes (13). The upper mounting holes (13) have upper detection holes (14) on both sides in the middle. The bottom of the upper copper busbar (1) has an upper connecting plate (2). The upper connecting plate (2) is fixedly connected to the bottom of the upper copper busbar (1). The upper connecting plate (2) is inclined at 45°. The upper connecting plate (2) has a first bottom connection hole (21). The top and bottom of the first bottom connection hole (21) have upper connecting bolt countersunk holes (22).

2. The field rapid cable connection structure according to claim 1, characterized in that: The top of the copper busbar (3) is provided with a second top connection hole (31), and the second top connection hole (31) has three horizontally arranged holes. The middle of the copper busbar (3) is provided with a second middle connection hole (32), and the second middle connection hole (32) has three horizontally arranged holes. The bottom of the second middle connection hole (32) is provided with four first middle mounting holes (33). The middle two sides of the first middle mounting holes (33) are provided with middle detection holes (34). The bottom of the first middle mounting holes (33) is provided with a second middle mounting hole (35). The bottom of the copper busbar (3) is provided with a middle connecting plate (4). The middle connecting plate (4) is fixedly connected to the bottom of the copper busbar (3). The middle connecting plate (4) is inclined at 45°. The middle connecting plate (4) is provided with a second bottom connection hole (41). The top and bottom of the second bottom connection hole (41) are provided with countersunk holes (42) for middle connecting bolts.

3. The field quick cable connection structure according to claim 1, characterized in that: The lower copper busbar (5) has a third top connection hole (51) at its top end. The third top connection hole (51) has three holes arranged horizontally. The bottom end of the third top connection hole (51) has four first bottom mounting holes (52). The middle two sides of the first bottom mounting holes (52) have lower detection holes (53). The bottom end of the first bottom mounting holes (52) has a second bottom mounting hole (54). The bottom end of the lower copper busbar (5) has a lower connecting plate (6). The lower connecting plate (6) is fixedly connected to the bottom end of the lower copper busbar (5). The lower connecting plate (6) has a third bottom connection hole (61). The top and bottom ends of the third bottom connection hole (61) have countersunk holes (62) for bottom connecting bolts.

4. The field quick cable connection structure according to claim 1, characterized in that: The upper connecting plate (2), the middle connecting plate (4), and the lower connecting plate (6) are bolted to the bottom end of the fixing plate (7).

5. The field quick cable connection structure according to claim 1, characterized in that: An insulator is provided on one side of the lower copper busbar (5).

6. The field quick cable connection structure according to claim 1, characterized in that: The upper copper busbar (1) is 441 mm long, the middle copper busbar (3) is 601 mm long, and the lower copper busbar (5) is 561 mm long.

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