Conductive busbar connection structure and connection method

Abstract

The invention discloses a conductive busbar connecting structure and a connecting method. The conductive busbar connecting structure comprises a conductive bushing, and one end of the conductive bushing is provided with a riveting part; the conductive busbar is provided with a mounting hole which is used for being riveted with the conductive bushing, and the riveting part is accommodated in the mounting hole; one end of the fastener is provided with a connecting part, and the connecting part axially penetrates in from one end, provided with the riveting part, of the conductive bushing and penetrates out from the other end of the conductive bushing; and the conductive column is connected with the connecting part of the fastener and abuts against the conductive bushing, so that the conductive busbar, the conductive bushing and the conductive column can be conducted. According to the conductive busbar connection structure, the riveting part of the conductive bushing is connected with the conductive busbar and forms a reliable conductive connection structure with the conductive column, so that the stability and the reliability of current conduction are ensured, the assembly strength and the vibration resistance are improved, and looseness and poor contact of a connection part are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of conductive busbar, in particular to a conductive busbar connecting structure and a connecting method. BACKGROUND

[0002] The existing electric connection of the conductive busbar usually adopts welding, direct lapping or metal threaded connection and the like.

[0003] Although the welding can realize relatively firm fixing effect, the welding process is complex, special equipment and strict process control are needed, and if the welding heat is not properly controlled, the conductive busbar material is prone to deformation, damage or virtual welding phenomenon, thereby affecting the conductive performance and structural reliability.

[0004] And although the direct lapping of the conductive busbar has simple structure and convenient assembly, it has deficiencies in conductive performance and long-term reliability. The surface of the conductive busbar is prone to form an oxide layer, and if the oxide layer is not effectively removed at the lapping position, the contact resistance will increase and the heat will be serious, thereby affecting the system stability. In addition, the overall removal of the oxide layer of the conductive busbar requires additional chemical or mechanical treatment process, which is complicated and high in cost, and is not conducive to mass production. SUMMARY

[0005] In order to overcome the above deficiencies, the purpose of the present application is to provide a conductive busbar connecting structure and a connecting method, which connects the riveting part of the conductive bushing with the conductive busbar and forms a reliable conductive connection structure with the conductive column, thereby ensuring the stability and reliability of current conduction, improving the assembly strength and anti-vibration performance, and avoiding loosening and poor contact at the connecting position.

[0006] Technical scheme: The present application discloses a conductive busbar connecting structure, comprising: A conductive bushing has a riveting part at one end, and the conductive bushing further comprises an inner hole arranged in the axial direction; A conductive busbar has a mounting hole for riveting with the conductive bushing, and the riveting part is accommodated in the mounting hole; A fastener has a connecting part at one end, the connecting part penetrates through the inner hole from one end of the conductive bushing having the riveting part, and penetrates out from the other end of the conductive bushing; A anti-falling elastic ring is sleeved on the outside of the fastener and located in the inner hole, and the anti-falling elastic ring is in contact with the wall surface of the conductive bushing; A conductive column is connected with the connecting part of the fastener and in contact with the conductive bushing, so that the conductive busbar, the conductive bushing and the conductive column can be conductive.

[0007] Further, the fastener further comprises a rod portion and a flange portion, the flange portion and the connecting portion are located at two ends of the rod portion respectively, the flange portion is located at a side of the conductive busbar away from the conductive sleeve, the outer diameter of the flange portion is greater than the inner diameter of the mounting hole, and the end face of the flange portion towards the conductive busbar is attached to the end face of the conductive busbar.

[0008] Further, the inner hole comprises a straight section and a bevel section arranged coaxially in sequence from the direction close to one end of the riveting portion, the inner diameter of the straight section is constant, and the inner diameter of the bevel section gradually increases away from the straight section.

[0009] Further, the inner diameter of the inner hole is constant.

[0010] Further, the anti-falling elastic ring is made of an elastic material, and the inner diameter of the anti-falling elastic ring in a natural state is smaller than the outer diameter of the rod portion.

[0011] Further, the outer diameter of the anti-falling elastic ring is smaller than the maximum inner diameter of the bevel section, and greater than the inner diameter of the straight section of the inner hole.

[0012] Further, the conductive sleeve further comprises a main body portion connected with the riveting portion, the main body portion is a cylindrical structure, the outer diameter of the main body portion is greater than the outer diameter of the riveting portion, a plurality of convex rib keys are arranged on the end face of the main body portion towards the conductive busbar, and the end face of the main body portion is attached to the end face of the conductive busbar.

[0013] Further, the outer side wall of the riveting portion is arranged with a knurled tooth, and the riveting portion is in interference fit with the mounting hole.

[0014] Further, the conductive sleeve further comprises a flange portion, the flange portion is located at one end of the main body portion close to the riveting portion and extends outwardly along the radial direction of the main body portion.

[0015] Further, the conductive column has an inner threaded hole arranged coaxially with the fastener, and the connecting portion is in threaded connection with the inner threaded hole.

[0016] The application further discloses a conductive busbar connecting method, comprising the following steps: The conductive busbar and the conductive sleeve are provided, the riveting portion of the conductive sleeve is riveted in the mounting hole of the conductive busbar by using a riveting tool, and the conductive sleeve further comprises an inner hole arranged in the axial direction The fastener is provided, one end of the fastener has a connecting portion, one end of the fastener with the connecting portion is inserted from one end of the conductive sleeve with the riveting portion, passes through the inner hole, and then comes out from the conductive sleeve; The anti-falling elastic ring is sleeved on the outside of the fastener, and the anti-falling elastic ring is pushed along the length direction of the fastener until the anti-falling elastic ring is pushed into the inner hole, and the anti-falling elastic ring is in contact with the inner wall of the conductive bushing; The conductive column is connected with the connecting part of the fastener and is in contact with the conductive bushing, so that the conductive busbar, the conductive bushing and the conductive column can be conductive.

[0017] Further, the inner hole of the conductive bushing has a first inclined surface near the end of the riveting part, and the first inclined surface is gradually converging towards the direction of the riveting part; the riveting tool comprises a first riveting part and a second riveting part, the first riveting part has a supporting part capable of extending into the inner hole, and the end of the supporting part has a second inclined surface capable of being fitted with the first inclined surface, the first riveting part is in contact with the first inclined surface through the supporting part and presses the riveting part of the conductive bushing into the mounting hole of the conductive busbar; the second riveting part is a tapered shaft, the second riveting part extends into the riveting part and extrudes the inner wall of the riveting part, so that the riveting part is fixed in the mounting hole.

[0018] Further, the conductive bushing further comprises a flange part, the flange part is located at one end of the main part close to the riveting part and extends outward along the radial direction of the main part; the riveting tool comprises a third riveting part and a fourth riveting part located on both sides of the conductive busbar, the fourth riveting part acts on the side of the flange part away from the riveting part, the third riveting part is in contact with the conductive busbar, and the third riveting part and the fourth riveting part jointly act and fix the riveting part of the conductive bushing in the mounting hole in the form of riveting.

[0019] Further, the fastener further comprises a rod part and a flange part, the flange part and the connecting part are located at both ends of the rod part respectively, the flange part is located on the side of the conductive busbar away from the conductive bushing, the outer diameter of the flange part is greater than the inner diameter of the mounting hole, and the end face of the flange part towards the conductive busbar is fitted with the end face of the conductive busbar.

[0020] The beneficial effects of the present application are: (1) The present application sets the mounting hole on the conductive busbar, and the riveting part of the conductive bushing is embedded in the mounting hole in the form of interference fit, so that the conductive bushing and the conductive busbar form a firm mechanical connection, at the same time, the connecting part of the fastener, the conductive column and the conductive bushing are in contact, and then a circuit is formed for the conductive busbar, the conductive bushing and the conductive column to be conductive; (2) The inner hole of the conductive bushing includes a straight section and a slope section. During the assembly process, it can guide the anti-loosening elastic ring sleeved on the outside of the fastener into the hole, reducing assembly deviation. At the same time, the anti-loosening elastic ring abuts against the inner hole wall during the assembly process, thereby compensating for assembly tolerance, absorbing assembly stress and running vibration, preventing the fastener from loosening, and effectively improving the vibration resistance and reliability of the overall structure. Attached Figure Description

[0021] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and are not intended to specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances. In the drawings: Figure 1 This is an assembly diagram of the conductive busbar connection structure described in this invention; Figure 2 This is a schematic diagram showing the connection between the conductive bushing and the conductive busbar described in this invention; Figure 3 This is a schematic diagram of the installation of the fastener described in this invention; Figure 4 This is a cross-sectional view of the conductive busbar connection structure described in this invention; Figure 5 This is a schematic diagram of a conductive bushing according to an embodiment of the present invention; Figure 6 This is a schematic diagram of a conductive bushing according to another embodiment of the present invention; Figure 7 This is a schematic diagram of the installation of the conductive bushing in an embodiment of the present invention; Figure 8 This is a schematic diagram of the installation of the conductive bushing in another embodiment of the present invention; Figure 9 This is a schematic diagram of the surface being punctured after the conductive busbar and conductive bushing are connected according to the present invention.

[0022] In the diagram: 1. Conductive bushing; 11. Riveting part; 12. Main body; 13. Flange part; 14. Rib key; 15. Knurled teeth; 16. Inner hole; 161. Straight section; 162. Beveled section; 163. First beveled surface; 2. Conductive busbar; 21. Mounting hole; 3. Fastener; 31. Flange part; 32. Rod part; 33. Connecting part; 34. Anti-detachment elastic ring; 4. Conductive post; 41. Internal threaded hole; 51. First press-fit part; 511. Support part; 512. Second beveled surface; 52. Second press-fit part; 53. Third press-fit part; 54. Fourth press-fit part. Detailed Implementation

[0023] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0024] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The embodiments of this invention will now be described according to its overall structure.

[0025] like Figures 1 to 9 As shown, the present invention discloses a conductive busbar 2 connection structure, comprising: The conductive bushing 1 has a riveting part 11 at one end and an axially arranged inner hole 16. The conductive busbar 2 has a mounting hole 21 for riveting to the conductive bushing 1, and the riveting part 11 is accommodated in the mounting hole 21. Fastener 3, one end of fastener 3 has a connecting part 33, the connecting part 33 is axially inserted into the inner hole 16 from one end of conductive bushing 1 with the riveting part 11, and is extended out from the other end of conductive bushing 1. An anti-detachment elastic ring 34 is sleeved on the outside of the fastener 3 and located inside the inner hole 16. The anti-detachment elastic ring 34 abuts against the wall surface of the conductive bushing 1. The conductive post 4 is connected to the connection part 33 of the fastener 3 and abuts against the conductive bushing 1, so that the conductive busbar 2, the conductive bushing 1 and the conductive post 4 can conduct electricity.

[0026] With the above structure, the conductive busbar 2 structure provided by the present invention includes a conductive bushing 1, a conductive busbar 2, a fastener 3, and a conductive post 4. One end of the conductive bushing 1 has a riveting portion 11, and the conductive busbar 2 has a mounting hole 21 that cooperates with the riveting portion 11. The riveting portion 11 is accommodated within the mounting hole 21, thereby allowing the conductive bushing 1 and the conductive busbar 2 to be installed and fixed. The fastener 3 is rod-shaped, with a connecting portion 33 at one end. The connecting portion 33 enters the conductive bushing 1 axially from the end with the riveting portion 11, passes through the conductive bushing 1, and exits from the other end. Furthermore, after the connecting portion 33 exits the conductive bushing 1, the conductive post 4 connects to the connecting portion 33 of the fastener 3, and the conductive post 4 abuts against the end face of the conductive bushing 1, thereby forming a circuit in which the conductive busbar 2, the conductive bushing 1, and the conductive post 4 are interconnected.

[0027] The riveting part 11 is connected to the conductive busbar 2, so that the conductive busbar 2 forms a stable mechanical and electrical connection with the conductive bushing 1 through the riveting part 11. When the fastener 3 passes through the conductive bushing 1 and is connected to the conductive post 4, the current can be transmitted from the conductive busbar 2 to the conductive post 4 through the conductive bushing 1, thereby realizing a reliable electrical connection.

[0028] In this embodiment, the fastener 3 sequentially includes a flange portion 31, a rod portion 32, and a connecting portion 33, with the flange portion 31 and the connecting portion 33 located at opposite ends of the rod portion 32. The rod portion 32 is cylindrical and axially passes through the conductive bushing 1, while the connecting portion 33 at least partially or completely extends out of the conductive bushing 1 to facilitate connection and fixation between the connecting portion 33 and the conductive post 4. The flange portion 31 is located on the side of the conductive busbar 2 away from the conductive bushing 1, and its outer diameter is larger than the inner diameter of the mounting hole 21 on the conductive busbar 2. This allows the flange portion 31 to act as a stop when the fastener 3 is installed, preventing further axial movement of the fastener 3. In the connection structure of the conductive busbar 2, the end face of the flange 31 facing the conductive busbar 2 is tightly fitted with the end face of the conductive busbar 2. When the fastener 3 is tightened or locked, the flange 31 applies an axial clamping force to the conductive busbar 2 through its end face, which further causes the conductive post 4 connected to the connecting part 33 to clamp the conductive bushing 1, thereby ensuring that the three form a stable conductive path and have good electrical conductivity.

[0029] Preferably, at least one anti-detachment elastic ring 34 is also fitted onto the fastener 3. The anti-detachment elastic ring 34 can be fitted onto the rod portion 32. There is a gap between the wall surface of the inner hole 16 of the conductive bushing 1 and the fastener 3, meaning that the two are not in direct radial contact. When the anti-detachment elastic ring 34 is fitted onto the outside of the fastener 3, the anti-detachment elastic ring 34 abuts against the wall surface of the inner hole 16, that is, the anti-detachment elastic ring 34 forms a support after contacting the wall surface of the inner hole 16, thereby restricting the axial detachment or radial wobbling of the fastener 3 and preventing it from shifting or vibrating within the conductive bushing 1. With the above structure, by fitting the anti-detachment elastic ring 34 onto the fastener 3, the fastener 3 maintains a stable axial and radial positioning state within the conductive bushing 1, ensuring that the contact between the conductive busbar 2, the conductive bushing 1, and the fastener 3 is always tight, improving the stability and durability of the overall connection structure.

[0030] In one feasible embodiment, the inner hole 16, near the end of the riveting portion 11, sequentially includes a coaxially arranged straight segment 161 and a sloped segment 162. The inner diameter of the straight segment 161 is the same everywhere, while the inner radial direction of the sloped segment 162 gradually increases away from the straight segment 161. Further, an anti-detachment elastic ring 34 is sleeved on the outside of the rod portion 32. The anti-detachment elastic ring 34 is made of elastic material, and its outer diameter is smaller than the maximum inner diameter of the sloped segment 162 and larger than the inner diameter of the straight segment 161. After entering the sloped segment 162, the anti-detachment elastic ring 34 is gradually compressed and deformed. The outer periphery of the anti-detachment elastic ring 34 contacts the inner wall of the sloped segment 162 and generates radial support force. When the anti-detachment elastic ring 34 is further pushed into the straight segment 161, it is compressed and deformed, thus abutting against the inner wall of the straight segment 161, thereby providing axial limiting and radial positioning for the fastener 3. The anti-detachment elastic ring 34 can also be limited by the inclined section 162. The outer periphery of the anti-detachment elastic ring 34 is squeezed by the inner wall of the inclined section 162, thereby limiting the fastener 3. The inclined section 162 of the inner hole 16 can play a limiting and guiding role during the assembly of the anti-detachment elastic ring 34. The anti-detachment elastic ring 34 is sleeved on the outside of the fastener 3. During installation, the slope of the inclined section 162 provides a transition for the installation of the anti-detachment elastic ring 34, thereby improving the tightness of the installation of the anti-detachment elastic ring 34. In this embodiment, the anti-detachment elastic ring 34 can also be made of elastic material.

[0031] In another feasible embodiment, the inner diameter of the inner hole 16 is the same everywhere, and the anti-detachment elastic ring 34 is sleeved on the outside of the rod 32. The anti-detachment elastic ring 34 is made of an elastic material, such as rubber. When not assembled, the inner diameter of the anti-detachment elastic ring 34 is smaller than the outer diameter of the rod 32. When the anti-detachment elastic ring 34 is assembled into the inner hole 16 of the conductive bushing 1, the anti-detachment elastic ring 34 is squeezed by the wall of the inner hole 16, so that the outer periphery of the anti-detachment elastic ring 34 contacts the wall of the inner hole 16 and generates a radial preload. In this way, the anti-detachment elastic ring 34 fills the gap between the rod 32 of the fastener 3 and the inner hole 16, while restricting the radial displacement of the fastener 3. Since the anti-detachment elastic ring 34 is made of an elastic material in this embodiment, the anti-detachment elastic ring 34 can withstand compression deformation to adapt to the gap size of the inner hole 16, and has the performance of buffering and absorbing vibration.

[0032] like Figure 5 and Figure 6 As shown, the conductive bushing 1 also includes a main body 12 connected to the riveting part 11. The two are an integral structure. The main body 12 is a cylindrical structure, which can be a cylinder or a prism, and is not limited here. The outer diameter of the main body 12 is larger than the outer diameter of the riveting part 11, so that after the conductive bushing 1 is assembled into the mounting hole 21 of the conductive busbar 2, the main body 12 and the riveting part 11 form a stepped structure. Multiple raised ribs 14 are arranged around the end face of the main body 12 facing the conductive busbar 2. The multiple ribs 14 are spaced apart in the circumferential direction and are higher than the end face of the main body 12. When the conductive bushing 1 is connected and fixed to the conductive busbar 2, the end face of the main body 12 fits against the conductive busbar 2, and the multiple ribs 14 penetrate the conductive busbar 2 and form multi-point contact.

[0033] Furthermore, the outer wall of the riveting portion 11 of the conductive bushing 1 is circumferentially covered with knurled teeth 15. The knurled teeth 15 can be straight teeth or helical teeth, etc., and can be adjusted according to actual needs. The riveting portion 11 is installed in the mounting hole 21 of the conductive busbar 2 by interference fit. The knurled teeth 15 are evenly distributed along the circumference of the outer wall of the riveting portion 11. When the riveting portion 11 is pressed into the mounting hole 21 of the conductive busbar 2, the knurled teeth 15 and the hole wall of the mounting hole 21 of the conductive busbar 2 are embedded and engaged, forming a strong mechanical lock between the two. The interference fit between the riveting portion 11 and the mounting hole 21 not only improves the friction and pull-out resistance between the riveting portion 11 and the conductive busbar 2, but also effectively prevents the conductive bushing 1 from loosening or rotating due to vibration, thermal expansion and contraction or external impact during long-term operation.

[0034] Using the above structure, such as Figure 9 As shown, when the conductive bushing 1 is installed on the conductive busbar 2, the knurled teeth 15 and the key 14 can both pierce the oxide layer of the conductive busbar 2, avoiding the influence of the oxide layer on the resistance, while forming an interference fit to provide anti-torque and anti-pull force.

[0035] Preferably, the conductive bushing 1 further includes a flange portion 13 disposed at one end of the main body portion 12 near the riveting portion 11. The flange portion 13 is integrally formed with the main body portion 12 and extends outward along the radial direction of the main body portion 12. Therefore, the outer diameter of the flange portion is larger than the outer diameter of the main body portion 12. When the conductive bushing 1 is riveted, the installation tool can act on the side of the flange portion 13 away from the riveting portion 11, thereby pressing the riveting portion 11 into the mounting hole 21, so that the two are interference-fitted and a fast connection is completed.

[0036] In this embodiment, the conductive post 4 has an internal threaded hole 41 arranged coaxially with the fastener 3, and the connecting part 33 of the fastener 3 has an external thread structure. The two are reliably connected through threaded engagement. After the connecting part 33 of the fastener 3 passes through the inner hole 16 of the conductive bushing 1, it is aligned with the internal threaded hole 41 of the conductive post 4 and screwed in to connect the two threads.

[0037] like Figures 1 to 8 As shown, the present invention also discloses a method for connecting conductive busbar 2, comprising the following steps: A conductive busbar 2 and a conductive bushing 1 are provided. A riveting tool is used to rivet the riveting part 11 of the conductive bushing 1 into the mounting hole 21 of the conductive busbar 2. The conductive bushing 1 also includes an axially arranged inner hole 16. A fastener 3 is provided, one end of which has a connecting portion 33. The end of the fastener 3 with the connecting portion 33 extends into the end of the conductive bushing 1 with the riveting portion 11, passes through the inner hole 16 and then exits from the conductive bushing 1. An anti-detachment elastic ring 34 is provided. The anti-detachment elastic ring 34 is sleeved on the outside of the fastener 3. The anti-detachment elastic ring 34 is pushed along the length direction of the fastener 3 until it is pushed into the inner hole 16. The anti-detachment elastic ring 34 abuts against the inner wall of the conductive bushing 1. A conductive post 4 is provided, which is connected to the connection part 33 of the fastener 3 and abuts against the conductive bushing 1, so that the conductive busbar 2, the conductive bushing 1 and the conductive post 4 can conduct electricity.

[0038] Specifically, such as Figure 3As shown, the fastener 3 sequentially includes a flange portion 31, a rod portion 32, and a connecting portion 33, with the flange portion 31 and the connecting portion 33 located at opposite ends of the rod portion 32. The rod portion 32 is cylindrical and axially passes through the conductive bushing 1. The connecting portion 33 at least partially or completely extends out of the conductive bushing 1 to facilitate connection and fixation between the connecting portion 33 and the conductive post 4. The flange portion 31 is located on the side of the conductive busbar 2 away from the conductive bushing 1. The outer diameter of the flange portion 31 is larger than the inner diameter of the mounting hole 21 on the conductive busbar 2, so that when the fastener 3 is installed, the flange portion 31 can have a stopping effect, preventing the fastener 3 from continuing to move axially. In the connection structure of the conductive busbar 2, the end face of the flange 31 facing the conductive busbar 2 is tightly fitted with the end face of the conductive busbar 2. When the fastener 3 is tightened or locked, the flange 31 applies an axial clamping force to the conductive busbar 2 through its end face, which further causes the conductive post 4 connected to the connecting part 33 to clamp the conductive bushing 1, thereby ensuring that the three form a stable conductive path and have good electrical conductivity.

[0039] like Figure 7 As shown, in a feasible embodiment, the inner hole 16 of the conductive bushing 1 has a first inclined surface 163 near the end of the riveting portion 11, and the first inclined surface 163 gradually narrows towards the riveting portion 11; the riveting tool includes a first riveting member 51 and a second riveting member 52, the first riveting member 51 has a support portion 511 that can extend into the inner hole 16, and the end of the support portion 511 has a second inclined surface 512 that can fit against the first inclined surface 163. The first riveting member 51 abuts against the first inclined surface 163 through the support portion 511 and presses the riveting portion 11 of the conductive bushing 1 into the mounting hole 21 of the conductive busbar 2; the second riveting member 52 is a tapered shaft, the second riveting member 52 extends into the riveting portion 11 and squeezes the inner wall of the riveting portion 11, thereby fixing the riveting portion 11 in the mounting hole 21.

[0040] like Figure 8 As shown, in another feasible embodiment, the conductive bushing 1 further includes a flange portion 13, which is located at one end of the main body portion 12 near the riveting portion 11 and extends radially outward along the main body portion 12; the riveting tool includes a third riveting member 53 and a fourth riveting member 54 located on both sides of the conductive busbar 2, the fourth riveting member 54 acting on the side of the flange portion 13 away from the riveting portion 11, the third riveting member abutting against the conductive busbar 2, and the third riveting member and the fourth riveting member working together to fix the riveting portion 11 of the conductive bushing 1 in the mounting hole 21 by riveting.

[0041] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A conductive busbar connection structure, characterized in that, include: A conductive bushing, one end of which has a riveting portion, and the conductive bushing also includes an axially disposed inner hole; A conductive busbar having a mounting hole for riveting to the conductive bushing, the riveting portion being accommodated within the mounting hole; A fastener having a connecting portion at one end, the connecting portion being axially inserted into the inner hole from one end of the conductive bushing having the riveting portion, and exiting from the other end of the conductive bushing. An anti-loosening elastic ring is sleeved on the outside of the fastener and located inside the inner hole, and the anti-loosening elastic ring abuts against the wall surface of the conductive bushing. The conductive post is connected to the connection part of the fastener and abuts against the conductive bushing, so that the conductive busbar, conductive bushing and conductive post can conduct electricity.

2. The conductive busbar connection structure according to claim 1, characterized in that, The fastener further includes a rod and a flange. The flange and the connecting part are located at the two ends of the rod, respectively. The flange is located on the side of the conductive busbar away from the conductive bushing. The outer diameter of the flange is larger than the inner diameter of the mounting hole, and the end face of the flange facing the conductive busbar is in contact with the end face of the conductive busbar.

3. The conductive busbar connection structure according to claim 2, characterized in that, The inner hole includes a straight section and an inclined section arranged coaxially from the end near the riveting part. The inner diameter of the straight section is the same everywhere, and the inner radial direction of the inclined section gradually increases away from the straight section.

4. The conductive busbar connection structure according to claim 2, characterized in that, The inner diameter of the inner hole is the same everywhere.

5. The conductive busbar connection structure according to claim 3 or 4, characterized in that, The anti-detachment elastic ring is made of elastic material, and in its natural state, the inner diameter of the anti-detachment elastic ring is smaller than the outer diameter of the rod.

6. The conductive busbar connection structure according to claim 3, characterized in that, The outer diameter of the anti-detachment elastic ring is smaller than the maximum inner diameter of the inclined section, but larger than the inner diameter of the straight section of the inner hole.

7. The conductive busbar connection structure according to claim 1, characterized in that, The conductive bushing also includes a main body connected to the riveting part. The main body is a cylindrical structure, and the outer diameter of the main body is larger than the outer diameter of the riveting part. The end face of the main body facing the conductive busbar is provided with a plurality of raised ribs, and the end face of the main body is in contact with the end face of the conductive busbar.

8. The conductive busbar connection structure according to claim 1, characterized in that, The outer wall of the riveting part is circumferentially knurled, and the riveting part is interference-fitted with the mounting hole.

9. The conductive busbar connection structure according to claim 7, characterized in that, The conductive bushing also includes a flange portion located at one end of the main body portion near the riveting portion and extending radially outward along the main body portion.

10. The conductive busbar connection structure according to claim 1, characterized in that, The conductive post has an internally threaded hole coaxially disposed with the fastener, and the connecting part is threadedly connected to the internally threaded hole.

11. A method for connecting conductive busbars, characterized in that, Includes the following steps: A conductive busbar and a conductive bushing are provided. A riveting tool is used to rivet the riveting portion of the conductive bushing into the mounting hole of the conductive busbar. The conductive bushing also includes an axially arranged inner hole. A fastener is provided, one end of which has a connecting portion. The end of the fastener having the connecting portion extends into the end of the conductive bushing having the riveting portion, passes through the inner hole, and exits from the conductive bushing. A non-detachable elastic ring is provided. The non-detachable elastic ring is sleeved on the outside of the fastener. The non-detachable elastic ring is pushed along the length direction of the fastener until it is pushed into the inner hole. The non-detachable elastic ring abuts against the inner wall of the conductive bushing. A conductive post is provided, which is connected to the connection portion of the fastener and abuts against the conductive bushing, thereby enabling the conductive busbar, the conductive bushing, and the conductive post to conduct electricity.

12. The conductive busbar connection method according to claim 11, characterized in that, The inner hole of the conductive bushing has a first inclined surface at the end near the riveting part, and the first inclined surface gradually narrows towards the riveting part; the riveting tool includes a first riveting member and a second riveting member, the first riveting member has a support portion that can extend into the inner hole, and the end of the support portion has a second inclined surface that can fit against the first inclined surface, the first riveting member presses the riveting part of the conductive bushing into the mounting hole of the conductive busbar through the support portion against the first inclined surface; the second riveting member is a tapered shaft, the second riveting member extends into the riveting part and squeezes the inner wall of the riveting part, thereby fixing the riveting part in the mounting hole.

13. The conductive busbar connection method according to claim 11, characterized in that, The conductive bushing further includes a flange portion located at one end of the main body near the riveting portion and extending radially outward along the main body. The riveting tool includes a third riveting member and a fourth riveting member located on both sides of the conductive busbar. The fourth riveting member acts on the side of the flange portion away from the riveting portion. The third riveting member abuts against the conductive busbar. The third riveting member and the fourth riveting member work together to fix the riveting portion of the conductive bushing in the mounting hole by riveting.

14. The conductive busbar connection method according to claim 11, characterized in that, The fastener further includes a rod and a flange. The flange and the connecting part are located at the two ends of the rod, respectively. The flange is located on the side of the conductive busbar away from the conductive bushing. The outer diameter of the flange is larger than the inner diameter of the mounting hole, and the end face of the flange facing the conductive busbar is in contact with the end face of the conductive busbar.

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