Conductive connection structure and integrated bus bar

Abstract

The conductive connection structure comprises a bus conductor, a lug plate, a bolt, a nut and the like, the bus conductor and the lug plate are strip-shaped and are fixedly connected through the bolt and the nut, and conductive grease is arranged on the contact surface of the bus conductor and the lug plate, so that the conductivity of the bus conductor and the lug plate is enhanced. An annular conducting strip is innovatively added between a bus conductor and a lug plate, the inner side wall of the annular conducting strip is provided with a groove, a linkage part and other structures which are linked with a bolt, and the annular conducting strip is provided with a breaking assisting groove and a guiding groove. The conducting strip is provided with a slot and a coating strip, so that conductive grease can be uniformly coated on the contact surface when the bolt is screwed, and an anti-loose structure can be formed. In addition, each component is provided with a containing hole to improve the grease carrying capacity, the open groove and the coating sheet are matched to prevent overlying, the whole sheet structure is integrally made of conductive materials, the stability and reliability of conductive connection are improved, and the connector is widely applied to the field of electrical equipment connection.

Description

Technical Field

[0001] The present invention relates to the technical field of busbars for electrical connection, and particularly to a conductive connection structure and an integrated busbar. Background Art

[0002] With the continuous development and improvement of the power system, busbars play a crucial role in the power distribution and transmission of various electrical equipment. It can collect and distribute multiple currents, ensuring the stable and efficient operation of the power system.

[0003] In the prior art, as disclosed in a busbar power connection structure of a patent with the patent application number CN202323505976.8, it has certain structural characteristics. The structure includes a seat body, a busbar conductor is arranged along the length direction of the seat body, and a connection piece is arranged in the width direction of the seat body. Connection holes are opened at both ends of the connection piece to connect the busbar conductor with other electrical equipment, thereby achieving the current conduction path and meeting the basic electrical connection requirements.

[0004] However, this structure faces a key problem in practical applications, that is, the electrical connection reliability and connection efficiency between the connection piece and the busbar conductor. Currently, in order to enhance the electrical conductivity between the connection piece and the busbar conductor, a commonly used method in the industry is to set conductive grease between the two. However, during the actual assembly process of the busbar, the number of connection pieces and busbar conductors is large. When it is necessary to coat the conductive grease between each connection piece and the corresponding busbar conductor, the operation is extremely cumbersome. An appropriate amount of conductive grease needs to be accurately coated on each contact surface, which not only consumes a large amount of labor time, but also the coating process is prone to unevenness, affecting the consistency of the conductive effect. In addition, the speed of manually coating the conductive grease is very slow, which is difficult to meet the requirements of large-scale production for assembly efficiency, greatly limiting the production efficiency of the busbar and its popularization and application in the market. There is an urgent need for a new solution to overcome this problem. Summary of the Invention

[0005] In view of the problems pointed out in the background art, the present invention proposes a conductive connection structure and an integrated busbar to solve the above technical problems.

[0006] The technical solution of the present invention is realized as follows: A conductive connection structure includes a busbar conductor, a connection piece, a bolt, and a nut. Connection holes for the bolt to pass through are provided on the busbar conductor and the connection piece. The bolt passes through the connection hole and is tightly connected with the nut. An annular conductive sheet is provided between the busbar conductor and the connection piece, and conductive grease is coated on the conductive sheet.

[0007] The present invention is further configured such that a groove is provided on the inner side wall of the conductive sheet, a protruding linkage portion is provided on the side wall of the groove, and a connecting groove for the linkage portion to extend into is provided on the outer side wall of the bolt along its axial direction.

[0008] The present invention is further configured such that the linkage portion is connected to the middle position of the inner wall of the groove, both sides of the connection end of the linkage portion and the conductive sheet are cut off to form a breaking-aiding groove, and both sides of the opening end of the groove are cut off to form a guiding groove.

[0009] The present invention is further configured such that the conductive sheet is provided with grooves penetrating both sides and the outer side thereof in the thickness direction, a plurality of grooves are provided and are spaced apart in the circumferential direction of the conductive sheet, a coating sheet is provided in the groove, in the axial direction of the conductive sheet, the coating sheet and the conductive sheet are spaced apart, the coating sheet and the conductive sheet are arranged parallel, a connecting sheet connected to the conductive sheet extends from one end of the coating sheet, and the connecting sheet is connected to the middle position of the inner side wall of the groove.

[0010] The present invention is further configured such that the coating sheet and the conductive sheet are respectively provided with accommodating holes.

[0011] The present invention is further configured such that, in the circumferential direction of the conductive sheet, the width of the slot is greater than the width of the coating sheet.

[0012] The present invention is further configured such that at least one linkage part is provided.

[0013] The present invention is further configured such that the conductive sheet, linkage part, coating sheet and connecting sheet are integrally arranged, and thickened portions are provided on both sides of one end of the linkage part away from the conductive sheet; in the axial direction of the bolt, the length of the end of the linkage part away from the conductive sheet is greater than the width of the connecting groove.

[0014] An integrated busbar busbar comprises a base, a busbar conductor is arranged on the base along its length direction, a wiring piece is arranged on the base along its width direction, and the wiring piece and the busbar conductor are electrically connected through the above-mentioned conductive connection structure.

[0015] By adopting the above technical solution, the beneficial effects of the present invention are as follows: Conductive grease is applied to the conductive sheet and then assembled between the terminal lug and the busbar conductor. This eliminates the need to manually apply the conductive grease to the terminal lug and the busbar conductor, thereby improving the efficiency of applying the conductive grease between the terminal lug and the busbar conductor.

[0016] Through the linkage part, the bolt can drive the conductive sheet to rotate, so that when the bolt is tightened, the conductive sheet and the coating sheet are in contact with the terminal sheet and the bus conductor respectively. As the conductive sheet rotates, the conductive grease can be applied to the terminal sheet and the bus conductor, so that the conductive grease is in full contact with the terminal sheet and the bus conductor, and as the bolt is tightened, the raised coating sheet is gradually flattened and pressed between the terminal sheet and the bus conductor along with the conductive sheet.

[0017] On both sides of the linkage part, there are break - assisting grooves. During the process of gradually flattening and pressing the coating sheet, when the frictional force between the conductive sheet and the connection sheet and the busbar conductor is large enough, the tightened bolt will break the linkage part. The linkage part breaks at the position of the break - assisting groove, and as the bolt rotates, the broken linkage part enters between the bolt and the connection hole wall of the connection sheet or the busbar conductor through the guiding groove, and undergoes extrusion deformation to form a loosening - prevention structure, preventing the bolt from loosening possibly caused by contamination with conductive grease. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following - described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of the busbar body and the connection sheet of the present invention.

[0020] Figure 2 It is an exploded schematic diagram of the busbar body and the connection sheet of the present invention.

[0021] Figure 3 It is a front view of the busbar body and the connection sheet of the present invention.

[0022] Figure 4 For the present invention Figure 3 B - B cross - section Figure 1 .

[0023] Figure 5 For the present invention Figure 3 B - B cross - section Figure 2 .

[0024] Figure 6 For the present invention Figure 3 A - A cross - sectional view.

[0025] Figure 7 It is a schematic structural diagram of the connection between the conductive sheet and the bolt of the present invention.

[0026] Figure 8 It is a schematic structural diagram of the conductive sheet of the present invention Figure 1 .

[0027] Figure 9 It is a schematic structural diagram of the conductive sheet of the present invention Figure 2 .

[0028] Figure 10 For the present invention Figure 9 Enlarged view of part A.

[0029] Figure 11 This is a schematic structural diagram of the busbar of the present invention.

[0030] Figure 12 This is a schematic structural diagram inside the busbar of the present invention.

[0031] Figure 13 This is a schematic structural diagram of the bottom of the busbar of the present invention.

[0032] Explanation of reference numerals in the drawings: busbar conductor 1, connection piece 2, bolt 3, nut 4, connection hole 5, conductive grease 6, conductive sheet 7, groove 8, linkage part 9, connection groove 10, breaking aid groove 11, guiding groove 12, slotted opening 13, coating piece 14, connection piece 15, receiving hole 16, thickened part 17, base 18, first installation groove 20, second installation groove 21, outer cover 22, incoming line box 23, power connection bar 24. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0034] Reference is made as follows Figures 1 - 13 to illustrate the present invention: Embodiment: A conductive connection structure includes a busbar conductor 1, a connection piece 2, a bolt 3, and a nut 4. Connection holes 5 for the bolt 3 to pass through are provided on the busbar conductor 1 and the connection piece 2. The size of the connection hole 5 is closely adapted to the diameter of the bolt 3, which should not only ensure that the bolt 3 can pass through smoothly, but also enable the busbar conductor 1 and the connection piece 2 to maintain a relatively stable positional relationship during subsequent tightening. The bolt 3 passes through the connection hole 5 and is tightly connected to the nut 4. By rotating the nut 4, the bolt 3 is gradually tightened, applying pressure to the busbar conductor 1 and the connection piece 2, prompting the two to be closely attached to each other, and thus achieving a stable electrical connection state.

[0035] Conductive grease 6 is provided between the busbar conductor 1 and the connection piece 2.

[0036] An annular conductive sheet 7 is provided between the busbar conductor 1 and the terminal lug 2, the bolt 3 passes through the conductive sheet 7, and the conductive grease 6 is covered on the conductive sheet 7. In the optimized design of the conductive connection structure, a key component, the annular conductive sheet 7, is introduced. The conductive sheet 7 is cleverly placed between the busbar conductor 1 and the terminal lug 2, and its layout has clear functional considerations. From the geometric structure, the conductive sheet 7 is annular, and this shape is adapted to the bolt 3. The bolt 3 passes precisely through the center hole of the conductive sheet 7, and the inner diameter of the conductive sheet 7 is designed to be exactly equal to the diameter of the bolt 3. Such a tight fit can not only ensure the stability of the bolt 3 during the tightening process, but also enable the conductive sheet 7 to maintain a fixed relative position between the busbar conductor 1 and the terminal lug 2, and will not be displaced due to slight external forces during assembly or subsequent use. This precise size matching is the basic guarantee for the reliability and stability of the entire connection structure, and avoids the problem of abnormal conduction or loose mechanical connection caused by shaking or misalignment of the conductive sheet 7.

[0037] When it comes to setting the conductive grease 6 between the busbar conductor 1 and the terminal lug 2, the traditional manual coating method exposes significant efficiency shortcomings. On the one hand, the number of busbar conductors 1 and terminal lugs 2 is usually large, which means that more coating operations are required. During manual operation, the operator needs to evenly apply the conductive grease 6 to each fitting surface very carefully, which consumes a lot of time and energy.

[0038] In order to break through the above-mentioned manual coating dilemma, the conductive sheet 7 is innovatively used to optimize the setting process of the conductive grease 6. First, the conductive sheet 7 is used as a carrier of the conductive grease 6. During operation, the conductive sheet 7 only needs to be immersed in the conductive grease 6. Thanks to the annular structure of the conductive sheet 7, its surface can quickly and evenly absorb the conductive grease 6. After the immersion, the conductive sheet 7 is taken out, and the conductive grease 6 is covered on the conductive sheet 7 to form a layer of conductive grease. Subsequently, the conductive sheet 7 carrying the conductive grease 6 is placed between the bus conductor 1 and the terminal lug 2 according to the established assembly process. During the tightening process of the bolt 3, the conductive grease 6 on the conductive sheet 7 will naturally fill between the bus conductor 1 and the terminal lug 2, and at the same time, a continuous and uniform conductive medium layer is formed on the contact surface between the two. Through this process, the cumbersome, inefficient and error-prone manual coating method is completely abandoned, and the efficiency of setting the conductive grease 6 between the terminal lug 2 and the bus conductor 1 is greatly improved, ensuring that the entire conductive connection structure has stable and efficient conductive performance, meeting the stringent requirements of modern electrical systems for connection reliability and efficiency.

[0039] A groove 8 is provided on the inner side wall of the annular conductive sheet 7 , a protruding linkage portion 9 is provided on the side wall of the groove 8 , and a connecting groove 10 for the linkage portion 9 to extend into is provided on the outer side wall of the bolt 3 along its axial direction.

[0040] The linkage part 9 is connected to the middle position of the inner wall of the groove 8. The two sides of the connection end of the linkage part 9 and the conductive sheet 7 are cut off to form a breaking groove 11, and the two sides of the open end of the groove 8 are cut off to form a guide groove 12. The connection groove 10 passes through the end of the bolt 3. During actual assembly, when the bolt 3 is inserted into the connection hole 5 of the busbar conductor 1 and the terminal 2, the linkage part 9 can accurately correspond to the connection groove 10, thereby establishing a mechanical linkage relationship between the bolt 3 and the conductive sheet 7. The two sides of the connection end of the linkage part 9 and the conductive sheet 7 are cut off to form the breaking groove 11. This design lays the groundwork for the subsequent anti-loosening mechanism. At the same time, the two sides of the open end of the groove 8 are cut off to form a guide groove 12, whose function is to guide the broken linkage part 9 to move smoothly to the predetermined position under certain circumstances.

[0041] The conductive sheet 7 is provided with slots 13 that penetrate through both sides and the outer side in the thickness direction. There are multiple slots 13 and they are spaced apart in the circumferential direction of the conductive sheet 7. A coating sheet 14 is provided in the slot 13. In the axial direction of the conductive sheet 7, the coating sheet 14 is spaced apart from the conductive sheet 7. The coating sheet 14 is arranged parallel to the conductive sheet 7. A connecting sheet 15 connected to the conductive sheet 7 extends from one end of the coating sheet 14. The connecting sheet 15 is connected to the middle position of the inner side wall of the slot 13. The spaced coating sheets 14 and the connecting sheets 15 change the original single planar structure of the conductive sheet 7, enhance the three-dimensional layering of the conductive sheet 7, and thus can adhere to a sufficient amount of conductive grease 6.

[0042] The coating process of the conductive grease 6: In the initial stage of tightening the rotating bolt 3, due to the cooperation between the linkage part 9 and the connecting groove 10, the bolt 3 can drive the conductive sheet 7 to rotate synchronously. During this process, the conductive sheet 7 and the coating sheet 14 are in contact with the terminal lug 2 and the bus conductor 1 respectively. As the conductive sheet 7 rotates, the conductive grease 6 attached to its surface and the coating sheet 14 is evenly coated on the terminal lug 2 and the bus conductor 1 to ensure that the conductive grease 6 is in full contact with both. Compared with the traditional manual coating method, this process not only greatly improves the efficiency, but also can achieve a more uniform and comprehensive coating effect. Because driven by the mechanical rotational force, the conductive grease 6 can be better coated between the terminal lug 2 and the bus conductor 1 to optimize the conductive path and reduce the contact resistance.

[0043] Flattening and pressing process of coating sheet 14: As bolt 3 is further tightened, the raised coating sheet 14 is gradually flattened. Due to the stable connection of connecting sheet 15, coating sheet 14 will not be displaced or broken during the flattening process. Finally, coating sheet 14 is flattened and pressed between terminal piece 2 and busbar conductor 1 together with conductive sheet 7, forming a tight conductive connection structure. At this time, coating sheet 14 not only plays the role of coating conductive grease 6, but also becomes a part of the conductive connection.

[0044] Fracture trigger condition of the linkage part 9: As the bolt 3 is tightened, the conductive sheet 7 and the coating sheet 14 are gradually flattened and deformed. The rotational friction resistance between the conductive sheet 7, the coating sheet 14, the connection piece 2, and the busbar conductor 1 gradually increases. When the friction resistance between the conductive sheet 7 and the connection piece 2 and the busbar conductor 1 is large enough, further tightening the bolt 3 will cause the linkage part 9 to bear a large shear force. The two sides of the linkage part 9 are provided with fracture-assisting grooves 11, and the material strength at the fracture-assisting grooves 11 is relatively low. Under the action of this large shear force, the rotating bolt 3 will cause the linkage part 9 to fracture here. The fractured linkage part 9 continues to rotate with the bolt 3 until the conductive sheet 7 and the coating sheet 14 are completely flattened and tightened, forming a firm connection state.

[0045] Formation and function of the anti-loosening structure: After the linkage part 9 fractures, it enters between the bolt 3 and the wall of the connection hole 5 of the connection piece 2 or the busbar conductor 1 through the guiding groove 12, moves together with the rotating bolt 3, and undergoes extrusion deformation. The linkage part 9 after this extrusion deformation is like a wedge, wedged between the wall of the connection hole 5 and the bolt 3, forming an effective anti-loosening structure. It can prevent the bolt 3 from loosening due to the possible contamination of conductive grease 6, ensuring that the connection between the busbar conductor 1 and the connection piece 2 remains stable and reliable during long-term use, maintaining the safety and continuity of the electrical connection, and meeting the strict requirements for connection stability in complex electrical environments.

[0046] When considering the construction of the anti-loosening structure, after the linkage part 9 fractures, since it is connected from the middle position of the inner wall of the groove 8, the length after its fracture is ingeniously designed to be greater than the distance between the wall of the connection hole 5 and the bottom of the connection groove 10. This means that as the bolt 3 continues to be tightened, the friction force between the conductive sheet 7, the connection piece 2, and the busbar conductor 1 gradually increases until it reaches a critical value, causing the linkage part 9 to be unable to withstand the shear force and fracture. Since the length of the fractured linkage part 9 exceeds the distance between the wall of the connection hole 5 and the bottom of the connection groove 10, the excess part will inevitably enter the narrow space between the bolt 3 and the wall of the connection hole 5.

[0047] Once the protruding part of the linkage part 9 enters between the bolt 3 and the wall of the connection hole 5, due to the extremely limited space, this part will be subjected to a strong squeezing force from the outer wall of the bolt 3 and the wall of the connection hole 5. Under the action of this squeezing force, the material of the linkage part 9, which originally has a certain rigidity, begins to be squeezed and deformed, gradually filling the gap between the bolt 3 and the wall of the connection hole 5, and finally forming a state similar to a wedge embedded. In this way, if the bolt 3 wants to loosen, it must overcome the huge resistance generated by the deformed linkage part 9, which effectively prevents the bolt 3 from loosening due to contamination with conductive grease 6 or other external factors (such as vibration, temperature change, etc.), ensuring that the connection between the busbar conductor 1 and the terminal 2 always remains highly stable during long-term operation, laying a solid foundation for the reliable power supply of the electrical system.

[0048] The coating sheet 14 and the conductive sheet 7 are respectively provided with a receiving hole 16. In terms of the principle of physical adsorption, when the coating sheet 14 and the conductive sheet 7 are immersed in the conductive grease 6, the receiving hole 16 can absorb the conductive grease 6 quickly and in large quantities under the surface tension of the liquid and the capillary action by virtue of its internal spatial structure. Compared with the case where the receiving hole 16 is not provided, this structure greatly increases the attachment sites of the conductive grease 6. After the coating sheet 14 and the conductive sheet 7 are taken out, the conductive grease 6 stored in the receiving hole 16 will slowly seep out, continuously providing sufficient conductive medium for the conductive path between the terminal 2 and the busbar conductor 1, ensuring that during long-term use, even if part of the conductive grease 6 is lost due to various factors, there is still enough grease to maintain a low-resistance conductive state, effectively reducing the contact resistance and improving the conductive efficiency.

[0049] The conductive grease 6 includes silicone oil-based conductive grease, carbon-based conductive grease, metal-based conductive grease, and mineral oil-based conductive grease.

[0050] In the circumferential direction of the conductive sheet 7, the width of the slot 13 is greater than the width of the coating sheet 14. When the conductive sheet 7 and the coating sheet 14 are gradually flattened as the bolt 3 is tightened, the coating sheet 14 can smoothly enter the inner space of the slot 13 due to the wider slot 13. In this way, the coating sheet 14 and the conductive sheet 7 are prevented from overlapping each other in the compressed state.

[0051] At least one linkage part 9 is provided. Providing at least one linkage part 9 can ensure that during the tightening process of the bolt 3, the conductive sheet 7 can stably rotate with the bolt 3, and realize the function of evenly applying the conductive grease 6 to the terminal piece 2 and the busbar conductor 1. Without the linkage part 9, an effective mechanical connection cannot be established between the conductive sheet 7 and the bolt 3, and the entire mechanism of applying the conductive grease 6 cannot be realized.

[0052] The conductive sheet 7, the linkage part 9, the coating sheet 14, and the connecting sheet 15 are integrally provided, with an overall thin sheet-like structure and made of conductive materials, such as copper. The thickness of the conductive sheet 7 is 0.3 mm or 0.5 mm or 1 mm.

[0053] On both sides of one end of the linkage part 9 far from the conductive sheet 7, there are thickening parts 17; in the axial direction of the bolt 3, the length of one end of the linkage part 9 far from the conductive sheet 7 is greater than the width of the connecting groove 10. When the linkage part 9 breaks, the above structural design plays a role in preventing the linkage part 9 from rotating in the connecting groove 10. The thickening parts 17 increase the mass and rigidity of the end of the linkage part 9, making it less likely to rotate in the connecting groove 10 due to external micro disturbances (such as vibrations, current shocks, etc.). At the same time, since the length of the broken end of the linkage part 9 is greater than the width of the connecting groove 10, its two ends will extend beyond the boundary of the connecting groove 10 and be restricted by the walls of the connecting groove 10, further ensuring that the broken linkage part 9 will not rotate randomly in the connecting groove 10. This anti-rotation design is crucial because once the linkage part 9 rotates in the connecting groove 10, it may affect the formation of the anti-loosening structure.

[0054] An integrated busbar includes a long strip-shaped base 18. On the rear side of the base 18, there is a first installation groove 20, and the first installation groove 20 is arranged along the length direction of the base 18. There are three first installation grooves 20, and the three first installation grooves 20 are arranged at intervals in the width direction of the base 18. On the front side of the base 18, there is a second installation groove 21, and the second installation groove 21 is arranged along the length direction of the base 18. There is one second installation groove 21 and it is located at the middle position of the base 18.

[0055] Busbar conductors 1 are installed in both the first installation groove 20 and the second installation groove 21. On the base 18, there are connection tabs 2 arranged along its width direction. Both ends of the connection tabs 2 extend out from both ends in the width direction of the base 18. There are multiple connection tabs 2 and they are arranged at intervals in the length direction of the base 18.

[0056] On the front side of the base 18, there is an outer cover 22, and the outer cover 22 covers the connection tabs 2 inside it.

[0057] The connection tabs 2 and the busbar conductors 1 are electrically connected through the above conductive connection structure.

[0058] One end in the length direction of the base 18 is connected with an incoming line box 23, and all four busbar conductors 1 extend into the incoming line box 23. It also includes connection bars 24 extending into the incoming line box 23 and respectively connected to the four busbar conductors 1.

[0059] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A conductive connection structure, comprising a busbar conductor, a terminal lug, a bolt, and a nut, wherein the busbar conductor and the terminal lug are provided with connection holes for the bolts to pass through, the bolts pass through the connection holes and are fastened to the nuts, characterized in that: An annular conductive sheet is arranged between the busbar conductor and the connecting piece, and conductive grease is covered on the conductive sheet.

2. A conductive connection structure according to claim 1, characterized in that: A groove is arranged on the inner side wall of the conductive sheet, a protruding linkage part is arranged on the side wall of the groove, and a connecting groove for the linkage part to extend into is arranged on the outer side wall of the bolt along its axial direction.

3. A conductive connection structure according to claim 2, characterized in that: The linkage part is connected to the middle position of the inner wall of the groove, the two sides of the connection end of the linkage part and the conductive sheet are cut off to form a breaking groove, and the two sides of the opening end of the groove are cut off to form a guide groove.

4. A conductive connection structure according to any one of claims 1 to 3, characterized in that: The conductive sheet is provided with grooves running through both sides and the outer side in the thickness direction. There are multiple grooves and they are spaced apart in the circumferential direction of the conductive sheet. A coating sheet is provided in the groove. In the axial direction of the conductive sheet, the coating sheet and the conductive sheet are spaced apart and arranged parallel to the conductive sheet. A connecting sheet connected to the conductive sheet extends from one end of the coating sheet, and the connecting sheet is connected to the middle position of the inner wall of the groove.

5. A conductive connection structure according to claim 4, characterized in that: The coating sheet and the conductive sheet are respectively provided with accommodating holes.

6. A conductive connection structure according to claim 5, characterized in that: In the circumferential direction of the conductive sheet, the width of the slot is greater than the width of the coating sheet.

7. A conductive connection structure according to claim 5, characterized in that: At least one linkage unit is provided.

8. A conductive connection structure according to claim 5, characterized in that: The conductive sheet, linkage part, coating sheet and connecting sheet are integrally arranged, and thickened parts are arranged on both sides of the end of the linkage part away from the conductive sheet; in the axial direction of the bolt, the length of the end of the linkage part away from the conductive sheet is greater than the width of the connecting groove.

9. An integrated busbar busbar comprises a base, a busbar conductor is arranged on the base along its length direction, and a terminal piece is arranged on the base along its width direction, characterized in that: The terminal piece and the busbar conductor are electrically connected via the conductive connection structure as described in any one of claims 1 to 8.

Images