Joint structure of plug-in type bus duct

Abstract

The utility model relates to power equipment, in particular to a connector structure of a plug-in type bus duct, which comprises a plurality of insulating parts arranged between two adjacent busbars and two side plates arranged on two sides of a lap joint of two bus duct main bodies, and the insulating parts are positioned between the two side plates; and the thickness adjusting part is located in the insulating part, the thickness adjusting part is connected with an adjusting driving part, the adjusting driving part is arranged on one of the side plates, and the thickness adjusting part is driven to act when the adjusting driving part acts. The thickness of the insulating part can be accurately controlled through the thickness adjusting part and the adjusting driving part matched with the thickness adjusting part, so that the thickness of the insulating part can be dynamically increased or decreased; according to the design of realizing thickness change through an adjusting mechanism, the thickness of the insulating part can be flexibly adjusted according to actual requirements, and the problem of poor contact possibly caused by size difference between the busbars can be effectively solved.

Description

Technical Field

[0001] This utility model relates to a power equipment, specifically a connector structure for a plug-in busbar trunking. Background Technology

[0002] Plug-in busbars are power transmission devices used in power systems. They consist of a series of metal conductors (usually aluminum or copper) and insulating materials, used to distribute power from the power source to different electrical devices. The main feature of plug-in busbars is that their joints can be connected to other parts by plugging or unplugging, thus providing greater flexibility and making installation and maintenance more convenient. The joint structure of plug-in busbars is a crucial part of their design, determining the connection performance, safety, and stability of the busbar. The main function of the joint is to connect different sections of the busbar modules together to achieve power transmission.

[0003] When connecting two busbars in a plug-in busbar trunking system, multiple insulating intermediate plates are typically used to ensure insulation and stability between adjacent busbars. However, due to differences in thickness and spacing between different busbar models, a fixed-thickness insulating intermediate plate may not always guarantee optimal contact pressure during installation. This is especially true when the gap between busbars is large or the busbars are thin, as the insulating intermediate plate may not provide sufficient contact pressure. This insufficient pressure can lead to poor contact, thus affecting the efficiency and stability of power transmission.

[0004] Specifically, the insulating plate at the joint serves not only to provide insulation, but more importantly, to ensure good electrical contact through appropriate pressure. When the gap between busbars is large, the fixed thickness of the insulating plate may not be able to completely fill the large gap, resulting in insufficient contact between the contact surfaces, which in turn leads to increased contact resistance and poor current transmission. Conversely, when the busbars are thin, the reduced thickness of the busbars themselves may prevent the pressure of the insulating plate from achieving a sufficient locking effect, thus failing to effectively secure the connection between the busbars and further affecting the stable transmission of power. Utility Model Content

[0005] The purpose of this utility model is to provide a connector structure for a plug-in busbar trunking to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A connector structure for plug-in busbar trunking, used for insulating and locking connection between the lap joints of busbars at opposite ends of two busbar trunking bodies, comprising:

[0008] Multiple insulating components are disposed between two adjacent busbars, and two side plates are disposed on both sides of the overlap of the two busbar trunking bodies, with the multiple insulating components located between the two side plates;

[0009] A thickness adjustment component is located inside the insulating component. The thickness adjustment component is connected to an adjustment drive component. The adjustment drive component is disposed on one of the side plates. When the adjustment drive component is activated, it drives the thickness adjustment component to move, thereby increasing or decreasing the thickness of the insulating component.

[0010] The connector structure of a plug-in busbar trunking as described above: the insulating component consists of two symmetrically arranged middle plates, and conductive plates are provided on the opposite sides of the two middle plates. Two insulating sheets are symmetrically arranged at the center line of the conductive plates. Plug-in frames that are staggered and plugged into each other are provided on the opposite surfaces of the two middle plates. Sliding grooves are symmetrically opened inside the middle plates, and guide blocks are provided at the sliding grooves.

[0011] The connector structure of a plug-in busbar trunking as described above: the thickness adjustment component includes two first gears that rotate inside the middle plate, two racks that mesh in parallel and staggered on the upper and lower sides of the first gears, an inclined block disposed at one end of the racks, and a first spring symmetrically disposed on the side of the inclined block away from the racks, and a hexagonal hole is provided in the center of the first gear.

[0012] The two inclined blocks have notches that fit with the racks. The inclined blocks abut against the sliding inclined grooves. The inclined blocks have guide grooves that slide on the guide blocks. One end of the first spring is disposed on the middle plate, and the other end is disposed on the inner wall of the inclined blocks.

[0013] The connector structure of a plug-in busbar trunking as described above: the adjusting drive component includes an abutment plate attached to one of the side plates, a locking rotation mechanism disposed at the center of the abutment plate, and a transmission mechanism located on the upper and lower sides of the locking rotation mechanism and connected thereto.

[0014] The contact plate has a locking groove, and a rotating seat is provided on the contact plate at the center of the locking groove.

[0015] The connector structure of a plug-in busbar trunking as described above: the transmission mechanism includes a drive rod that rotates on the contact plate, a fixing ring that engages with one end of the drive rod, a limiting plate disposed at the other end of the drive rod, a second spring sleeved on the drive rod, and a second gear sleeved on the drive rod.

[0016] The drive rod is inserted into the hexagonal hole, and one end of the second spring abuts against the limiting plate, while the other end abuts against the second gear.

[0017] The connector structure of a plug-in busbar trunking as described above: the locking rotation mechanism includes a locking component disposed in the engaging groove, an engaging component connected to the locking component, and an unlocking component inserted into the engaging component and abutting against the locking component;

[0018] The locking component includes a fixing piece disposed in the engagement groove, a boss disposed around the fixing piece, a plurality of positioning cones arranged in a ring on the fixing piece, and a spring disposed at the boss. One end of the spring is fixed to the boss, and the other end is disposed on the inner wall of the engagement groove.

[0019] The connector structure of a plug-in busbar trunking as described above: the meshing component includes a third gear sleeved on the rotating seat, a plurality of positioning grooves arranged in a ring array on the third gear, and an embedding groove arranged on the third gear along the periphery of the plurality of positioning grooves.

[0020] The positioning groove is engaged with and inserted into the plurality of positioning cones.

[0021] As described above, a connector structure for a plug-in busbar trunking includes an unlocking ring embedded in the embedding groove and a knob connected to the unlocking ring via four plug-in pins. The unlocking ring abuts against the fixing plates surrounding the plurality of positioning cones, and the four plug-in pins are slidably inserted into the third gear.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] The thickness of the insulation component can be precisely controlled by the thickness adjustment component and the corresponding adjustment drive component, thereby realizing the dynamic increase or decrease of its thickness. This design, which achieves thickness change through adjustment mechanism, allows the thickness of the insulation component to be flexibly adjusted according to actual needs, and can effectively solve the problem of poor contact that may be caused by the size difference between busbars.

[0024] Specifically, due to the differences in the actual thickness and gap of different busbars, conventional designs may not meet the needs of every installation situation, resulting in poor contact and affecting electrical performance. However, by designing the insulation to have an adjustable thickness, it is possible to adjust in real time according to the size differences of different busbars to ensure that sufficient and appropriate contact pressure is provided in every situation.

[0025] This design can dynamically adjust according to the actual thickness of different busbars, installation gaps, and changes in the working environment to ensure that the optimal contact pressure is achieved for each contact. By precisely controlling the contact pressure, problems such as poor contact or unstable electrical connection due to insufficient pressure can be avoided, while unnecessary wear or damage caused by excessive pressure can also be prevented. This maintains a good electrical connection between busbars, reduces contact resistance, and thus significantly improves the stability and efficiency of power transmission. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the connector of a plug-in busbar trunking.

[0027] Figure 2 This is a schematic diagram of the connector structure in a plug-in busbar trunking system.

[0028] Figure 3 This is a schematic diagram of the joint structure from another angle in the joint structure of a plug-in busbar trunking.

[0029] Figure 4 This is a schematic diagram of the adjusting drive component in the connector structure of a plug-in busbar trunking.

[0030] Figure 5 This is a schematic diagram of the insulating components in the connector structure of a plug-in busbar trunking.

[0031] Figure 6 This is a schematic diagram of the middle plate in the connector structure of a plug-in busbar trunking.

[0032] Figure 7 This is a schematic diagram of the thickness adjustment component in the connector structure of a plug-in busbar trunking.

[0033] Figure 8 This is a schematic diagram showing the disassembled structure of the adjustment drive component in the connector structure of a plug-in busbar trunking.

[0034] Figure 9 This is a schematic diagram of the transmission components in the connector structure of a plug-in busbar trunking.

[0035] Figure 10 This is a schematic diagram of the engaging and locking components in the connector structure of a plug-in busbar trunking.

[0036] In the diagram: 1. Busbar trunking body; 2. Busbar; 3. Side plate; 4. Middle plate; 5. Conductive plate; 6. Insulating sheet; 7. Plug-in frame; 8. Guide block; 9. Inclined block; 10. Rack; 11. First spring; 12. First gear; 13. Hexagonal hole; 14. Contact plate; 15. Engaging groove; 16. Rotating seat; 17. Drive rod; 18. Fixing ring; 19. Limiting plate; 20. Second spring; 21. Second gear; 22. Fixing piece; 23. Boss; 24. Positioning cone; 25. Spring; 26. Third gear; 27. Positioning groove; 28. Embedding groove; 29. ​​Unlocking ring; 30. Knob. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0038] Please see Figures 1-3 In this embodiment of the utility model, a connector structure for a plug-in busbar trunking is provided for insulating and locking connections between the overlapping portions of busbars 2 located at opposite ends of two busbar trunking bodies 1, comprising:

[0039] Multiple insulating components are disposed between two adjacent busbars 2, and two side plates 3 are disposed on both sides of the overlap of the two busbar trunking bodies 1, with the multiple insulating components located between the two side plates 3;

[0040] A thickness adjustment component is located inside the insulating component. The thickness adjustment component is connected to an adjustment drive component. The adjustment drive component is disposed on one of the side plates 3. When the adjustment drive component is activated, it drives the thickness adjustment component to move, so as to change the thickness of the insulating component.

[0041] In this embodiment, when the driving component is adjusted, it drives the thickness adjustment component to move inside the insulating component. Through the cooperation between the thickness adjustment component and the insulating component, the thickness of the insulating component can be increased or decreased when the thickness adjustment component is in motion. Especially when insulating and locking the connection at the overlap of busbars 2 with different thicknesses, or when insulating and locking the connection between gaps between different busbars 2, the thickness of the insulating component is dynamically adjusted by increasing or decreasing the thickness of the insulating component, thereby providing sufficient contact pressure when insulating and locking the connection between gaps between different busbars 2 or busbars 2 with different thicknesses.

[0042] Of course, the existing joint structure can minimize the spacing between multiple insulating components when insulating and locking busbars 2 of different thicknesses or gaps between different busbars 2. This provides sufficient resistance pressure when insulating and locking busbars 2 of different thicknesses or gaps between different busbars 2. However, this method will reduce the original gap between busbars 2, resulting in deformation of busbars 2. At the same time, the reduction in the gap between busbars 2 will cause changes in the safety distance between busbars 2. Under power supply conditions, the reduction in the safety distance may lead to electric arcs, affecting power safety.

[0043] Please see Figure 5 , Figure 6 As a further embodiment of this utility model, the insulating component is composed of two symmetrically arranged middle plates 4. A conductive plate 5 is provided on the opposite sides of the two middle plates 4. Two insulating sheets 6 are symmetrically arranged at the center line of the conductive plate 5. An interlocking frame 7 is provided on the opposite surfaces of the two middle plates 4. A sliding groove is symmetrically opened inside the middle plate 4, and a guide block 8 is provided at the sliding groove.

[0044] In this embodiment, the conductive plate 5 contacts the busbar 2, enabling conduction between the two busbar sections 2 when the connector structure is insulated and locked to the busbar 2. When the thickness of the insulating component changes, the distance between the two intermediate plates 4 changes simultaneously. Through the interlocking and fitting plug-in frames 7 arranged on the opposite sides of the two intermediate plates 4, when the distance between the two intermediate plates 4 changes, the two interlocking plug-in frames 7 can act within the gap between the two intermediate plates 4, preventing the components inside the two intermediate plates 4 from being exposed and improving the insulation effect.

[0045] Please see Figure 5 , Figure 7 As a further embodiment of this utility model, the thickness adjustment component includes two first gears 12 that rotate inside the middle plate 4, two racks 10 that are parallel and misaligned and meshed on the upper and lower sides of the first gears 12, an inclined block 9 disposed at one end of the racks 10, and a first spring 11 symmetrically disposed on the side of the inclined block 9 away from the racks 10. A hexagonal hole 13 is provided in the center of the first gear 12.

[0046] The two inclined blocks 9 are provided with notches that fit the rack 10. The inclined blocks 9 are in contact with the sliding inclined groove. The inclined blocks 9 are provided with guide grooves that slide on the guide block 8. One end of the first spring 11 is provided on the middle plate 4, and the other end is provided on the inner wall of the inclined block 9.

[0047] In this embodiment, the two sides of the inclined block 9 have different thicknesses, with the side facing the first gear 12 being thinner and the side away from the first gear 12 being thicker. The sliding groove is adapted to the inclined block 9, and the guide block 8 has the same inclination angle as the sliding groove. The inclined block 9 is provided with a guide groove adapted to the guide block 8. When the first gear 12 rotates, the meshing racks 10 on the upper and lower sides move towards or away from each other, causing the inclined blocks 9 on both sides to move closer to or away from the first gear 12. When the inclined block 9 moves closer to the first gear 12, the combined thickness of the inclined block 9 and the sliding groove increases. At this time, the distance between the two middle plates 4 increases, and the combined thickness of the two middle plates 4 becomes thicker. Conversely, the opposite is true.

[0048] When the inclined block 9 approaches the first gear 12, the first spring 11 is stretched and maintains its rebound force. Therefore, in the initial state, the distance between the two middle plates 4 is kept to a minimum. It is important to note that the inclined block 9 slides on the guide block 8, which can limit the sliding of the inclined block 9 and keep it in contact with the sliding groove. The distance change of the middle plate 4 on one side must not exceed the thickness of the first gear 12, ensuring that the first gear 12 can maintain dynamic meshing with the rack 10.

[0049] Please see Figures 8-10 As a further embodiment of this utility model, the adjustment drive component includes an abutment plate 14 attached to one of the side plates 3, a locking rotation mechanism disposed at the center of the abutment plate 14, and a transmission mechanism located on the upper and lower sides of the locking rotation mechanism and connected thereto.

[0050] The contact plate 14 is provided with a locking groove 15, and a rotating seat 16 is provided on the contact plate 14 at the center of the locking groove 15.

[0051] The transmission mechanism includes a drive rod 17 that rotates on the contact plate 14, a fixing ring 18 that engages with one end of the drive rod 17, a limiting disc 19 disposed at the other end of the drive rod 17, a second spring 20 sleeved on the drive rod 17, and a second gear 21 sleeved on the drive rod 17.

[0052] The drive rod 17 is inserted into the hexagonal hole 13, and one end of the second spring 20 abuts against the limiting plate 19, while the other end abuts against the second gear 21.

[0053] The locking rotation mechanism includes a locking component disposed in the engaging groove 15, an engaging component connected to the locking component, and an unlocking component inserted into the engaging component and abutting against the locking component.

[0054] The locking component includes a fixing piece 22 disposed in the engagement groove 15, a boss 23 disposed around the fixing piece 22, a plurality of positioning cones 24 arranged in a ring on the fixing piece 22, and a spring piece 25 disposed at the boss 23. One end of the spring piece 25 is fixed to the boss 23, and the other end is disposed on the inner wall of the engagement groove 15.

[0055] The meshing component includes a third gear 26 sleeved on the rotating seat 16, a plurality of positioning grooves 27 arranged in a ring array on the third gear 26, and an embedding groove 28 arranged on the third gear 26 along the periphery of the plurality of positioning grooves 27.

[0056] The positioning groove 27 is engaged with and inserted into the plurality of positioning cones 24.

[0057] The unlocking component includes an unlocking ring 29 embedded in the embedding groove 28 and a knob 30 connected to the unlocking ring 29 by four plug-in pins. The unlocking ring 29 abuts against the fixing pieces 22 on the periphery of the plurality of positioning cones 24, and the four plug-in pins are slidably inserted into the third gear 26.

[0058] In this embodiment, multiple insulating components between the two side plates 3 are connected by a torque bolt. One end of the torque bolt abuts against one side plate 3, and the other end is threaded to a rotating seat 16 at the center of the contact plate 14. Since the contact plate 14 abuts against the other side plate 3, when the torque bolt is tightened, the two side plates 3 can move closer to each other, thereby locking the multiple insulating components between the two side plates 3.

[0059] An insulating sheet 6 is provided at the insertion point of the drive rod 17 on the middle plate 4 to achieve insulation. The drive rod 17 is inserted into the hexagonal holes 13 opened on the multiple first gears 12. When the third gear 26 rotates, since the second gears 21 are meshed on both the upper and lower sides, the drive rods 17 on both the upper and lower sides can rotate synchronously and in the same direction, so that the first gears 12 can rotate and adjust the sliding of the rack 10 and the inclined block 9. When it is necessary to rotate the third gear 26, the unlocking ring 29 is pressed down against the edge of the fixing piece 22 by grasping the knob 30, so that the fixing piece 22 is put into the locking groove 15. At this time, the spring 25 is pressed to maintain the rebound force, and the positioning cone 24 is disengaged from the insertion of the positioning groove 27. At this time, the knob 30 can be rotated to make the third gear 26 rotate on the rotating seat 16. When the third gear 26 rotates, it drives the second gear 21 to rotate, so that the drive rod 17 can be inserted into the hexagonal hole 13 to drive the first gear 12 to adjust.

[0060] After adjustment, release the pressed knob 30. At this time, the spring 25 rebounds, allowing the positioning cone 24 to be inserted into the positioning groove 27. Since the edge of the fixing piece 22 is provided with a boss 23 that cooperates with the engaging groove 15, the fixing piece 22 can be restricted to slide within the engaging groove 15 and cannot rotate. Thus, after the positioning cone 24 is inserted into the corresponding positioning groove 27, the rotation of the third gear 26 can be restricted. When the drive rod 17 is rotated for adjustment, the drive rod 17 can be kept in its current position, and the first gear 12 will not rotate, thus meeting the adjustment requirements.

[0061] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. A connector structure for a plug-in busbar trunking, used for insulating and locking connection between the overlapping joints of busbars (2) at opposite ends of two busbar trunking bodies (1), characterized in that, include: Multiple insulating components are provided between two adjacent busbars (2), and two side plates (3) are provided on both sides of the overlap of the two busbar trunk bodies (1). The multiple insulating components are located between the two side plates (3). A thickness adjustment component is located inside the insulating component. The thickness adjustment component is connected to an adjustment drive component. The adjustment drive component is disposed on one of the side plates (3). When the adjustment drive component is activated, it drives the thickness adjustment component to move, so that the thickness of the insulating component increases or decreases.

2. The connector structure of a plug-in busbar trunking according to claim 1, characterized in that, The insulating component consists of two symmetrically arranged middle plates (4). A conductive plate (5) is provided on the opposite side of the two middle plates (4). Two insulating sheets (6) are symmetrically arranged at the center line of the conductive plate (5). A plug-in frame (7) with mutual staggered insertion is provided on the opposite surface of the two middle plates (4). A sliding groove is symmetrically opened inside the middle plate (4), and a guide block (8) is provided at the sliding groove.

3. The connector structure of a plug-in busbar trunking according to claim 2, characterized in that, The thickness adjustment component includes two first gears (12) that rotate inside the middle plate (4), two racks (10) that mesh in parallel and misaligned on the upper and lower sides of the first gears (12), a wedge (9) set at one end of the rack (10), and a first spring (11) symmetrically arranged on the side of the wedge (9) away from the rack (10). A hexagonal hole (13) is opened in the center of the first gear (12). The two inclined blocks (9) are provided with notches that fit the rack (10). The inclined blocks (9) are in contact with the sliding inclined groove. The inclined blocks (9) are provided with guide grooves that slide on the guide block (8). One end of the first spring (11) is provided on the middle plate (4), and the other end is provided on the inner wall of the inclined block (9).

4. The connector structure of a plug-in busbar trunking according to claim 3, characterized in that, The adjustment drive includes an abutment plate (14) attached to one of the side plates (3), a locking rotation mechanism disposed at the center of the abutment plate (14), and a transmission mechanism located on the upper and lower sides of the locking rotation mechanism and connected thereto. The contact plate (14) is provided with a locking groove (15), and a rotating seat (16) is provided on the contact plate (14) at the center of the locking groove (15).

5. The connector structure of a plug-in busbar trunking according to claim 4, characterized in that, The transmission mechanism includes a drive rod (17) that rotates on the contact plate (14), a fixing ring (18) that engages with one end of the drive rod (17), a limiting plate (19) that is disposed at the other end of the drive rod (17), a second spring (20) that is sleeved on the drive rod (17), and a second gear (21) that is sleeved on the drive rod (17). The drive rod (17) is inserted into the hexagonal hole (13), one end of the second spring (20) abuts against the limiting plate (19), and the other end abuts against the second gear (21).

6. The connector structure of a plug-in busbar trunking according to claim 4, characterized in that, The locking rotation mechanism includes a locking component disposed in the engaging groove (15), an engaging component connected to the locking component, and an unlocking component inserted into the engaging component and abutting against the locking component; The locking component includes a fixing piece (22) disposed in the engagement groove (15), a boss (23) disposed around the fixing piece (22), a plurality of positioning cones (24) arranged in a ring on the fixing piece (22), and a spring (25) disposed at the boss (23). One end of the spring (25) is fixed to the boss (23), and the other end is disposed on the inner wall of the engagement groove (15).

7. The connector structure of a plug-in busbar trunking according to claim 6, characterized in that, The meshing component includes a third gear (26) sleeved on the rotating seat (16), a plurality of positioning grooves (27) arranged in a ring array on the third gear (26), and an embedding groove (28) arranged on the third gear (26) along the periphery of the plurality of positioning grooves (27). The positioning groove (27) is engaged with the plurality of positioning cones (24).

8. The connector structure of a plug-in busbar trunking according to claim 7, characterized in that, The unlocking component includes an unlocking ring (29) embedded in the embedding groove (28) and a knob (30) connected to the unlocking ring (29) via four plug-in pins. The unlocking ring (29) abuts against the fixing piece (22) on the periphery of the plurality of positioning cones (24), and the four plug-in pins are slidably inserted into the third gear (26).

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