An insulating tube type busbar connection device
By designing an insulated tube busbar connection device, using technical means such as card blocks, connecting blocks, conductive contact layers and sealing strips, the shortcomings of existing connection devices in terms of stability, safety and maintenance convenience are solved, and efficient power transmission and safe connection in complex environments are achieved.
Patent Information
- Application Number
- CN202411997179.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-04-04
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing insulated tube busbar connection devices have shortcomings in connection stability and safety, and are prone to loosening of the connection due to thermal expansion, contraction, vibration and other factors. There is a risk of leakage in high humidity environments, which is inconvenient to install and maintain, which increases maintenance costs and time.
An insulated tube-type busbar connection device is designed, which adopts the disassembly connection method of multiple sets of card blocks and connection blocks. It realizes conductive connection through the conductive contact layer and the conductive head, and ensures electrical insulation and waterproof performance through multiple sets of sealing strips and sealing grooves. At the same time, heat dissipation fins are used to reduce the temperature, and clamp blocks and springs ensure the stability of the connection.
It effectively avoids the problem of conductive head falling off caused by external force pulling, ensures the stability and safety of the connection, especially in complex environments such as wet and high altitudes, maintains good insulation performance, reduces leakage risks, and simplifies the installation and maintenance process.
Smart Images
Figure CN119764887A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of power transmission, and in particular to an insulating tubular busbar connecting device. Background Art
[0002] In modern power systems, with the continuous increase in industrial, commercial and residential electricity consumption, the requirements for power transmission are also increasing. Insulated tubular busbars are widely used in power transmission systems in substations, power plants, industrial plants and high-rise buildings of various voltage levels due to their technical advantages such as large current carrying capacity, low heat collection effect, low temperature rise, good insulation performance, good heat dissipation and high mechanical strength. The existing insulated tubular busbar connection devices have some disadvantages. First, the traditional connection devices perform poorly in terms of connection stability. Some connection devices are prone to loose connections during long-term operation due to factors such as thermal expansion and contraction and vibration. Secondly, local overheating may occur during the transmission process, affecting the power transmission efficiency, and may also generate electric sparks, posing safety hazards. In addition, the existing connection devices are not convenient enough in terms of installation and maintenance, and it is difficult to disassemble and replace the connection devices during maintenance, which increases the maintenance cost and time. In order to solve the above problems, we propose an insulated tubular busbar connection device. Summary of the invention
[0003] The main purpose of the present invention is to provide an insulating tubular busbar connection device, which can effectively solve the problems in the background technology.
[0004] To achieve the above object, the technical solution adopted by the present invention is:
[0005] An insulating tubular busbar connection device comprises an upper cover plate, a first insulating protective layer is arranged in the middle of the inner side of the upper cover plate, a plurality of groups of card blocks are arranged in the middle of the bottom end of the first insulating protective layer, a plurality of groups of connection blocks are detachably connected to the side wall of the card block, a plurality of groups of connection blocks are arranged at one end with a protective sleeve, a conductive contact layer is arranged at one end of the inner side of the protective sleeve close to the connection block, a conductive head is arranged at one end of the conductive contact layer close to the connection block through the protective sleeve, the conductive head is located between the plurality of groups of connection blocks, a plurality of groups of sleeves are arranged at the other end of the conductive contact layer, and the plurality of groups of Multiple groups of second springs are arranged on the inner side of the sleeve, a conductive rod is arranged on the other end of the second spring, a conductive plate is fixedly connected to the other end of multiple groups of the conductive rods, connecting grooves are opened on the side walls of multiple groups of the connecting blocks, a second connecting plate is detachably connected to the inner side of the connecting groove, supporting frames are arranged on the top of multiple groups of the second connecting plates, a first connecting plate is fixedly connected between multiple groups of the supporting frames, fixing frames are arranged on the left and right sides of the bottom end of the first connecting plate, a conductive rod is fixedly connected to the side wall of the fixing frame, and both ends of the conductive rod are in close contact with one end of the conductive head.
[0006] Preferably, the second connecting plate and the side wall of the connecting block are both provided with a second threaded hole, the second threaded hole is threadedly connected with a second bolt, and multiple groups of the side walls of the connecting blocks are all provided with fixing grooves, and the clamping blocks are matched with the fixing grooves.
[0007] Preferably, a limit plate is provided on the inner side of the other end of the sleeve, a limit ring is provided on the inner wall of the conductive rod, the outer wall of the limit ring fits with the inner wall of the sleeve, the inner wall of the limit plate fits with the outer wall of the conductive rod, and the outer wall of the conductive plate fits with the inner wall of the protective sleeve.
[0008] Preferably, a busbar is detachably connected to the inner side of the protective sleeve, a conductive terminal is provided at one end of the busbar, a sealing ring is provided at one end of the inner side of the protective sleeve close to the busbar, the sealing ring fits with the outer wall of the busbar, and the other end of the conductive terminal is in close contact with the side wall of the conductive plate.
[0009] Preferably, the fixing groove is detachably connected to a lower cover plate, a second insulating protective layer is provided in the middle inner side of the lower cover plate, first sealing grooves are provided on both the front and rear sides of the top of the second insulating protective layer, first sealing strips are provided on both the top of the second insulating protective layer and the left and right sides of the bottom of the first insulating protective layer, a plurality of groups of card blocks are provided in the middle of the top of the second insulating protective layer, and the card blocks fit in the fixing grooves.
[0010] Preferably, second sealing strips are provided on both the front and rear sides of the bottom end of the first insulating protective layer, and first sealing grooves are provided on both the front and rear sides of the top end of the second insulating protective layer, and the second sealing strips are matched with the first sealing grooves.
[0011] Preferably, the outer wall of the protective sleeve is in close contact with the inner wall of the first insulating protective layer and the second insulating protective layer respectively, and first sealing strips are provided on both sides of the bottom end of the first insulating protective layer and the left and right sides of the top end of the second insulating protective layer, and multiple groups of the outer walls of the protective sleeve are provided with second sealing grooves, and multiple groups of the first sealing strips are matched with the second sealing grooves.
[0012] Preferably, upper pressure plates are provided on both sides of the outer side wall of the upper cover plate, and multiple groups of first threaded holes are provided on the top of the two groups of upper pressure plates, and first bolts are threadedly connected to the inner sides of the first threaded holes.
[0013] Preferably, the outer side walls of the upper cover plate and the lower cover plate are both provided with multiple groups of cooling fins, and lower pressure plates are provided on both sides of the outer side walls of the lower cover plate. Multiple groups of first threaded holes are opened on the top of the two groups of lower pressure plates, and the inner side of the first threaded hole is threadedly connected with the first bolt, and the top of the lower pressure plate is in close contact with the bottom of the upper pressure plate.
[0014] Preferably, multiple groups of first springs are provided at both left and right ends of the inner sides of the upper cover plate and the lower cover plate, the other ends of the first springs are fixedly connected to clamping blocks, and the outer side walls of the clamping blocks are in close contact with the outer side walls of the busbars.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] 1. The insulating tubular busbar connection device fixes the outer side wall of the busbar accordingly through a sealing ring, and fixes the second connecting plate and the connecting block through multiple sets of second bolts. At this time, the conductive rod is in contact with the conductive head, thereby avoiding the conductive head and the conductive rod connection from falling off due to external force. At this time, the upper cover plate and the lower cover plate are covered, so that the card blocks are all matched with the fixing grooves, thereby avoiding the loosening between the upper cover plate, the lower cover plate and the connecting block. At the same time, the electrical insulation is ensured by the first insulating protective layer and the second insulating protective layer, while the conductive performance of the tubular busbar is not affected. When the plurality of second sealing strips are matched with the first sealing grooves, the external environmental factors are prevented from affecting the connection parts. The plurality of first sealing strips are matched with the second sealing grooves, and the outer side walls of the protective sleeve are respectively in close contact with the first insulating protective layer and the second insulating protective layer, thereby effectively preventing the external environment from affecting the connection parts and ensuring that good insulation performance can be maintained in complex environments such as humidity and high altitudes. In a high humidity environment, the first sealing strip can prevent moisture from entering the connection parts and avoid the occurrence of leakage, while making the installation and maintenance operations simple.
[0017] 2. This insulated tubular busbar connection device fixes the upper pressure plate and the lower pressure plate together through multiple sets of first bolts for protection. At this time, multiple sets of clamping blocks are tightly fitted to the busbar surface. At this time, multiple sets of first spring compression adaptively clamp busbars of different sizes, and in the long-term operation process, even if affected by factors such as thermal expansion and contraction and vibration, it can maintain a tight connection to avoid loose connection. Through multiple sets of heat dissipation fins, the heat generated by the connection device during operation can be dissipated in time, the temperature of the connection part can be reduced, and the service life of the connection device and the power transmission efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0019] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;
[0020] Figure 3 This is a partial structural schematic diagram of the present invention;
[0021] Figure 4 The second schematic diagram of the local structure of the present invention;
[0022] Figure 5The third schematic diagram of the local structure of the present invention;
[0023] Figure 6 The fourth schematic diagram of the local structure of the present invention;
[0024] Figure 7 The fifth schematic diagram of the local structure of the present invention;
[0025] Figure 8 For the present invention Figure 7 Enlarged schematic diagram at point A in the middle.
[0026] In the figure: 1, upper cover plate; 11, upper pressure plate; 12, first bolt; 13, first threaded hole; 14, first spring; 15, clamping block; 16, first sealing strip; 17, second sealing strip; 18, clamping block; 19, first sealing groove; 2, heat dissipation fin; 21, protective cover; 22, second sealing groove; 23, conductive plate; 24, sleeve; 25, second spring; 26, conductive rod; 27, limit ring; 28, limit plate; 2 9. Conductive contact layer; 3. Connecting block; 31. Connecting groove; 32. Second bolt; 33. Fixing groove; 34. First connecting plate; 35. Support frame; 36. Second connecting plate; 37. Fixing frame; 38. Conductive rod; 39. Second threaded hole; 4. Lower cover plate; 41. Lower pressure plate; 42. First insulating protective layer; 43. Sealing ring; 44. Busbar; 45. Conductive terminal; 46. Second insulating protective layer; 47. Conductive head. DETAILED DESCRIPTION
[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.
[0028] like Figure 1-8As shown, an insulating tubular busbar connection device comprises an upper cover plate 1, a first insulating protective layer 42 is arranged in the middle of the inner side of the upper cover plate 1, a plurality of groups of card blocks 18 are arranged in the middle of the bottom end of the first insulating protective layer 42, a plurality of groups of connection blocks 3 are detachably connected to the side wall of the card block 18, a protective sleeve 21 is arranged at one end of the plurality of connection blocks 3, a conductive contact layer 29 is arranged at one end of the inner side of the protective sleeve 21 close to the connection block 3, a conductive head 47 is arranged at one end of the conductive contact layer 29 close to the connection block 3, and the conductive head 47 is located between the plurality of connection blocks 3, a plurality of sleeves 24 are arranged at the other end of the conductive contact layer 29, and the plurality of sleeves Multiple groups of second springs 25 are arranged on the inner side of the cylinder 24, and a conductive rod 26 is arranged on the other end of the second spring 25, and the other end of the multiple groups of conductive rods 26 is fixedly connected to the conductive plate 23, and the side walls of the multiple groups of connecting blocks 3 are provided with connecting grooves 31, and the inner side of the connecting grooves 31 is detachably connected to the second connecting plate 36, and the top of the multiple groups of second connecting plates 36 is provided with support frames 35, and the first connecting plates 34 are fixedly connected between the multiple groups of support frames 35, and the left and right sides of the bottom end of the first connecting plate 34 are provided with fixing frames 37, and the side walls of the fixing frames 37 are fixedly connected to the conductive rods 38, and both ends of the conductive rods 38 are in close contact with one end of the conductive head 47.
[0029] In this embodiment, the second connecting plate 36 and the side wall of the connecting block 3 are both provided with second threaded holes 39 , and the second threaded holes 39 are threadedly connected with second bolts 32 . The side walls of the multiple groups of connecting blocks 3 are all provided with fixing grooves 33 , and the clamping blocks 18 fit in the fixing grooves 33 .
[0030] Specifically, multiple groups of second connecting plates 36 are inserted into the connecting grooves 31 , and multiple groups of second bolts 32 are used to fix the second connecting plates 36 and the connecting blocks 3 .
[0031] In this embodiment, a limit plate 28 is provided on the inner side of the other end of the sleeve 24, and a limit ring 27 is provided on the inner wall of the conductive rod 26. The outer wall of the limit ring 27 fits with the inner wall of the sleeve 24, the inner wall of the limit plate 28 fits with the outer wall of the conductive rod 26, and the outer wall of the conductive plate 23 fits with the inner wall of the protective sleeve 21.
[0032] Specifically, the multiple groups of conductive rods 26 are contracted under the action of the multiple groups of second springs 25 , and conduction is performed through the conductive rods 26 and the second springs 25 , and the limiting rings 27 prevent the conductive rods 26 from being separated from the interior of the sleeve 24 .
[0033] In this embodiment, a busbar 44 is detachably connected to the inner side of the protective sleeve 21, and a conductive terminal 45 is provided at one end of the busbar 44. A sealing ring 43 is provided at one end of the inner side of the protective sleeve 21 close to the busbar 44. The sealing ring 43 fits with the outer wall of the busbar 44, and the other end of the conductive terminal 45 is in close contact with the side wall of the conductive plate 23.
[0034] Specifically, the two groups of busbars 44 are respectively inserted into the two groups of protective sleeves 21 , so that the conductive ends 45 are in contact with the side walls of the conductive plates 23 , and continue to be inserted into the protective sleeves 21 .
[0035] In this embodiment, the fixing groove 33 is detachably connected to the lower cover plate 4, a second insulating protective layer 46 is provided in the middle of the inner side of the lower cover plate 4, first sealing grooves 19 are provided on both the front and rear sides of the top of the second insulating protective layer 46, first sealing strips 16 are provided on both the top of the second insulating protective layer 46 and the left and right sides of the bottom of the first insulating protective layer 42, and a plurality of groups of card blocks 18 are provided in the middle of the top of the second insulating protective layer 46, and the card blocks 18 are matched with the fixing groove 33.
[0036] Specifically, the upper cover plate 1 and the lower cover plate 4 are covered so that the clamping blocks 18 are all fitted into the fixing grooves 33 , thereby preventing the upper cover plate 1 , the lower cover plate 4 and the connecting block 3 from loosening.
[0037] In this embodiment, second sealing strips 17 are disposed on both sides of the bottom of the first insulating protective layer 42 , and first sealing grooves 19 are formed on both sides of the top of the second insulating protective layer 46 . The second sealing strips 17 fit in with the first sealing grooves 19 .
[0038] Specifically, multiple sets of second sealing strips 17 and first sealing grooves 19 are matched with each other, thereby preventing external environmental factors such as moisture, dust, etc. from affecting the connection parts.
[0039] In this embodiment, the outer wall of the protective sleeve 21 is in close contact with the inner wall of the first insulating protective layer 42 and the second insulating protective layer 46 respectively, and the first sealing strip 16 is provided on the left and right sides of the bottom end of the first insulating protective layer 42 and the top end of the second insulating protective layer 46, and multiple groups of outer walls of the protective sleeve 21 are opened with second sealing grooves 22, and multiple groups of first sealing strips 16 are matched with the second sealing grooves 22.
[0040] Specifically, the outer wall of the protective sleeve 21 is in close contact with the first insulating protective layer 42 and the second insulating protective layer 46, respectively, thereby effectively preventing the influence of the external environment on the connection parts and ensuring that good insulation performance can be maintained in complex environments such as humidity and high altitude. In a high humidity environment, the first sealing strip 16 can prevent moisture from entering the connection parts to avoid the occurrence of leakage.
[0041] In this embodiment, upper pressing plates 11 are disposed on both sides of the outer wall of the upper cover plate 1 . Multiple groups of first threaded holes 13 are formed on the tops of the two groups of upper pressing plates 11 . The first threaded holes 13 are threadedly connected with first bolts 12 .
[0042] Specifically, the upper pressing plate 11 and the lower pressing plate 41 are fixed together by a plurality of sets of first bolts 12 for protection.
[0043] In this embodiment, the outer walls of the upper cover plate 1 and the lower cover plate 4 are both provided with multiple groups of heat dissipation fins 2, and lower pressure plates 41 are provided on both sides of the outer wall of the lower cover plate 4. Multiple groups of first threaded holes 13 are opened on the top of the two groups of lower pressure plates 41, and the inner side of the first threaded hole 13 is threadedly connected with the first bolt 12, and the top of the lower pressure plate 41 is in close contact with the bottom of the upper pressure plate 11.
[0044] Specifically, the heat generated by the connection device during operation can be promptly dissipated through the multiple groups of heat dissipation fins 2, thereby reducing the temperature of the connection part and improving the service life and power transmission efficiency of the connection device.
[0045] In this embodiment, multiple groups of first springs 14 are provided at both the left and right ends of the inner sides of the upper cover plate 1 and the lower cover plate 4. The other end of the first spring 14 is fixedly connected to a clamping block 15, and the outer wall of the clamping block 15 is in close contact with the outer wall of the busbar 44.
[0046] Specifically, multiple groups of clamping blocks 15 fit tightly against the surface of the busbar 44. At this time, multiple groups of first springs 14 compress and adaptively clamp busbars 44 of different sizes, and in the long-term operation process, they can maintain a tight connection even if affected by thermal expansion and contraction, vibration and other factors.
[0047] It should be noted that the present invention is an insulating tubular busbar connection device. The user inserts two groups of busbars 44 into two groups of protective sleeves 21 respectively, so that the conductive end 45 contacts the side wall of the conductive plate 23, and continues to insert into the protective sleeve 21, so that multiple groups of conductive rods 26 are contracted under the action of multiple groups of second springs 25, and conduct electricity through the conductive rods 26 and the second springs 25. When the busbar 44 is inserted into a suitable position, the outer side wall of the busbar 44 is fixed accordingly by the sealing ring 43. At the same time, multiple groups of second connecting plates 36 are inserted into the connecting groove 31, and the second connecting plates 36 are fixed to the connecting block 3 by multiple groups of second bolts 32. At this time, the conductive rod 38 contacts the conductive head 47, thereby avoiding the conductive head being pulled by external force. 47 and the connection between the conductive rod 38 fall off, at this time, the upper cover plate 1 and the lower cover plate 4 are covered, so that the block 18 is matched with the fixing groove 33, thereby avoiding the loosening between the upper cover plate 1 and the lower cover plate 4 and the connecting block 3. At the same time, the electrical insulation is ensured by the first insulating protective layer 42 and the second insulating protective layer 46, while the conductive performance of the tubular bus is not affected. At the same time, multiple sets of second sealing strips 17 are matched with the first sealing groove 19 to prevent the external environmental factors such as moisture, dust, etc. from affecting the connection part, and multiple sets of first sealing strips 16 are matched with the second sealing groove 22, and the outer wall of the protective sleeve 21 is in close contact with the first insulating protective layer 42 and the second insulating protective layer 46, respectively, thereby effectively preventing the external environment from affecting the connection part. The influence of the invention is ensured to maintain good insulation performance in complex environments such as humidity and high altitude. In a high humidity environment, the first sealing strip 16 can prevent moisture from entering the connection part to avoid leakage. The upper pressure plate 11 and the lower pressure plate 41 are fixed together by multiple sets of first bolts 12 for protection. At this time, multiple sets of clamping blocks 15 are tightly fitted on the surface of the busbar 44. At this time, multiple sets of first springs 14 are compressed to adaptively clamp busbars 44 of different sizes, and in the long-term operation process, even if affected by factors such as thermal expansion and contraction and vibration, a tight connection can be maintained. Multiple sets of heat dissipating fins 2 can timely dissipate the heat generated by the connection device during operation, reduce the temperature of the connection part, and improve the service life of the connection device and the power transmission efficiency.
[0048] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. An insulating tubular busbar connection device, comprising an upper cover plate (1), characterized in that: A first insulating protective layer (42) is provided at the middle of the inner side of the upper cover plate (1), a plurality of groups of card blocks (18) are provided at the middle of the bottom end of the first insulating protective layer (42), a plurality of groups of connection blocks (3) are detachably connected to the side wall of the card block (18), a protective sleeve (21) is provided at one end of the plurality of connection blocks (3), a conductive contact layer (29) is provided at one end of the inner side of the protective sleeve (21) close to the connection block (3), a conductive head (47) is provided at one end of the conductive contact layer (29) close to the connection block (3), the conductive head (47) is located between the plurality of connection blocks (3), a plurality of sleeves (24) are provided at the other end of the conductive contact layer (29), and a plurality of sleeves (24) are provided on the inner side of the plurality of sleeves (24). A second spring (25) is provided at the other end of the second spring (25), and a conductive rod (26) is fixedly connected to the other end of multiple groups of the conductive rods (26). Multiple groups of the conductive rods (26) are fixedly connected to the conductive plate (23). Multiple groups of the connecting blocks (3) are provided with connecting grooves (31) on the side walls, and a second connecting plate (36) is detachably connected to the inner side of the connecting groove (31). Multiple groups of the second connecting plates (36) are provided with support frames (35) at the top ends, and a first connecting plate (34) is fixedly connected between the multiple groups of the support frames (35). The first connecting plate (34) is fixedly connected to the left and right sides of the bottom end of the first connecting plate (34). The side walls of the fixing frame (37) are fixedly connected to a conductive rod (38), and both ends of the conductive rod (38) are in close contact with one end of the conductive head (47).
2. The insulating tubular busbar connection device according to claim 1, characterized in that: The second connecting plate (36) and the side wall of the connecting block (3) are both provided with a second threaded hole (39), the second threaded hole (39) is threadedly connected with a second bolt (32), and multiple groups of side walls of the connecting block (3) are both provided with a fixing groove (33), and the clamping block (18) fits in the fixing groove (33).
3. The insulating tubular busbar connection device according to claim 1, characterized in that: A limiting plate (28) is arranged on the inner side of the other end of the sleeve (24), a limiting ring (27) is arranged on the inner side wall of the conductive rod (26), the outer side wall of the limiting ring (27) fits with the inner side wall of the sleeve (24), the inner side wall of the limiting plate (28) fits with the outer side wall of the conductive rod (26), and the outer side wall of the conductive plate (23) fits with the inner side wall of the protective sleeve (21).
4. The insulating tubular busbar connection device according to claim 1, characterized in that: A busbar (44) is detachably connected to the inner side of the protective sleeve (21), one end of the busbar (44) is provided with a conductive terminal (45), and a sealing ring (43) is provided at one end of the inner side of the protective sleeve (21) close to the busbar (44), the sealing ring (43) is fitted with the outer side wall of the busbar (44), and the other end of the conductive terminal (45) is in close contact with the side wall of the conductive plate (23).
5. The insulating tubular busbar connection device according to claim 2, characterized in that: The fixing groove (33) is detachably connected to a lower cover plate (4); a second insulating protective layer (46) is provided in the middle of the inner side of the lower cover plate (4); first sealing grooves (19) are provided on both the front and rear sides of the top of the second insulating protective layer (46); first sealing strips (16) are provided on both the top of the second insulating protective layer (46) and the left and right sides of the bottom of the first insulating protective layer (42); a plurality of groups of card blocks (18) are provided in the middle of the top of the second insulating protective layer (46); the card blocks (18) are fitted in the fixing groove (33).
6. The insulating tubular busbar connection device according to claim 5, characterized in that: Second sealing strips (17) are provided on both the front and rear sides of the bottom end of the first insulating protective layer (42), first sealing grooves (19) are provided on both the front and rear sides of the top end of the second insulating protective layer (46), and the second sealing strip (17) fits in with the first sealing groove (19).
7. The insulating tubular busbar connection device according to claim 1, characterized in that: The outer wall of the protective sleeve (21) is in close contact with the inner wall of the first insulating protective layer (42) and the inner wall of the second insulating protective layer (46), respectively; first sealing strips (16) are provided on both the left and right sides of the bottom end of the first insulating protective layer (42) and the top end of the second insulating protective layer (46); multiple groups of the outer walls of the protective sleeve (21) are provided with second sealing grooves (22); and multiple groups of the first sealing strips (16) are matched with the second sealing grooves (22).
8. The insulating tubular busbar connection device according to claim 1, characterized in that: Upper pressure plates (11) are provided on both sides of the outer wall of the upper cover plate (1), and multiple groups of first threaded holes (13) are provided on the top of the two groups of upper pressure plates (11), and the inner sides of the first threaded holes (13) are threadedly connected with first bolts (12).
9. The insulating tubular busbar connection device according to claim 5, characterized in that: The outer walls of the upper cover plate (1) and the lower cover plate (4) are both provided with a plurality of groups of heat dissipation fins (2), and lower pressure plates (41) are both provided on both sides of the outer walls of the lower cover plate (4). The top ends of the two groups of lower pressure plates (41) are provided with a plurality of groups of first threaded holes (13), the inner sides of the first threaded holes (13) are threadedly connected to the first bolts (12), and the top end of the lower pressure plate (41) is in close contact with the bottom end of the upper pressure plate (11).
10. The insulating tubular busbar connection device according to claim 1, characterized in that: A plurality of first springs (14) are provided at both left and right ends of the inner sides of the upper cover plate (1) and the lower cover plate (4); the other ends of the first springs (14) are fixedly connected to clamping blocks (15); and the outer side walls of the clamping blocks (15) are in close contact with the outer side walls of the busbars (44).