Conductive busbar connecting assembly and connecting structure

Abstract

The invention provides a conductive busbar connecting assembly and a connecting structure, in the provided conductive busbar connecting assembly, a first conductive busbar and / or a second conductive busbar form a surface oxide layer, and a conductive bushing comprises a first flange part and a first shaft part axially connected to one end of the first flange part. The end face, facing the first shaft part, of the first flange part and the outer wall of the first shaft part protrude outwards to form a plurality of first penetrating parts. If only one conductive busbar forms a surface oxide layer, only one conductive lining needs to be installed between the two conductive busbars, the first piercing part is used for piercing the oxide layer of the conductive busbar, and then the other conductive busbar abuts against the end face, away from the first shaft part, of the first flange part. If oxide layers are formed on the surfaces of the two conductive bushings, the end faces, deviating from the first shaft parts, of the first flange parts of the two conductive bushings abut against each other, so that the two conductive bushings are connected between the two conductive bushings in a mirror symmetry mode, and the oxide layers on the surfaces of the two conductive bushings are pierced through the first piercing parts respectively.

Description

Technical Field

[0001] The present invention belongs to the technical field of conductive busbar connection, and in particular relates to a conductive busbar connection assembly and a connection structure. Background Art

[0002] In the prior art, conductive busbars are used more and more frequently. Generally, there are two ways to connect two conductive busbars. One is welding, but this method has the problems of high cost and long time consumption. At the same time, it is necessary to control the welding heat and the problem of cold solder joints. The other is to use connectors to overlap the two conductive busbars. However, during the overlapping process, the parts used are relatively scattered, and the problem of the surface oxide layer of the conductive busbar itself needs to be considered. That is, before the overlapping process, the surface oxide layer of the conductive busbar needs to be removed as a whole so as to ensure the conductive effect between the two conductive busbars after the overlapping is completed. However, the cost of overall treatment of the surface oxide layer of the conductive busbar is high and is not widely used in production. Summary of the Invention

[0003] In view of the problems existing in the above-mentioned prior art, the main purpose of the present invention is to provide a conductive busbar connection assembly and a connection structure. In the process of assembling the conductive busbar connection structure using the provided conductive busbar connection assembly, there is no need to consider the problem of removing the oxide layer on the surface of the conductive busbar. The assembly is simple and quick, and the assembled conductive busbar connection structure is also conductive and reliable.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] The present invention provides a conductive busbar connection assembly, which includes:

[0006] A first conductive busbar and a second conductive busbar are respectively provided with connection holes, wherein the first conductive busbar and / or the second conductive busbar are formed with a surface oxide layer;

[0007] A conductive bushing, the conductive bushing being used to electrically connect the first conductive busbar and the second conductive busbar, comprising a first flange portion and a first shaft portion axially connected to one end of the first flange portion, wherein an end surface of the first flange portion facing the first shaft portion and an outer wall of the first shaft portion are both convexly formed with a plurality of first piercing portions;

[0008] When the first conductive busbar / the second conductive busbar has a surface oxide layer, the first shaft portion of the conductive bushing can be arranged in the connection hole of the first conductive busbar and / or the second conductive busbar, and the end surface of the first flange portion facing the first shaft portion abuts against the first conductive busbar / the second conductive busbar, and the multiple first piercing portions can all pierce the surface oxide layer of the first conductive busbar / the second conductive busbar; the second conductive busbar / the first conductive busbar without a surface oxide layer can abut against the end surface of the first flange portion facing away from the first shaft portion;

[0009] When the first conductive busbar and the second conductive busbar both form surface oxide layers, the first flange portions of the two conductive bushings are abutted against the end faces of their first shaft portions, so that the two first shaft portions can be respectively and correspondingly arranged in the connection holes of the two conductive busbars, and the end face of any first flange portion facing the first shaft portion connected thereto can abut against the corresponding conductive busbar, and multiple first piercing portions can correspondingly pierce the surface oxide layers of the two conductive busbars.

[0010] As a further description of the above technical solution, a plurality of first piercing portions formed by the first flange portion protruding outward toward the end surface of the first shaft portion are arranged around the first shaft portion, and their tips are axially away from the first flange portion.

[0011] As a further description of the above technical solution, the plurality of first piercing portions formed by the first flange portion protruding outward toward the end surface of the first shaft portion all extend in the radial direction of the first flange portion.

[0012] As a further description of the above technical solution, the multiple first piercing portions formed by the outward protrusion of the outer wall of the first shaft portion are straight knurled, oblique knurled or polygonal.

[0013] As a further description of the above technical solution, the conductive bushing further includes a first receiving groove, which is formed by an inward depression at the connection between the first flange portion and the first shaft portion.

[0014] As a further description of the above technical solution, it also includes a locking unit for axially locking the two conductive busbars and the conductive bushing, the locking unit including a first locking member and a second locking member; wherein,

[0015] The first locking member includes a second flange portion, a connecting portion, and a second shaft portion, wherein the connecting portion and the second shaft portion are axially connected to two sides of the second flange portion; or, the connecting portion and the second shaft portion are sequentially connected to the same side of the second flange portion;

[0016] The connecting portion can be interference-connected in the connecting hole of the first conductive busbar / the second conductive busbar, so that the end surface of the second flange portion facing the connecting portion in the axial direction abuts against the first conductive busbar / the second conductive busbar;

[0017] When the connecting portion and the second shaft portion are axially connected to both sides of the second flange portion, the second locking member can axially penetrate the two conductive busbars and the conductive bushing from the side of the second conductive busbar / first conductive busbar facing away from the first conductive busbar / second conductive busbar and be locked with the first locking member;

[0018] When the connecting portion and the second shaft portion are sequentially connected to the same side of the second flange portion, the second shaft portion can axially penetrate the two conductive busbars and the conductive bushing and be locked with the second locking member.

[0019] As a further description of the above technical solution, when the connecting portion and the second shaft portion are axially connected to both sides of the second flange portion, the first locking member is further provided with a threaded hole axially penetrating the connecting portion, the second flange portion, and the second shaft portion, so as to cooperate with the external thread provided on the main portion of the second locking member;

[0020] When the connecting portion and the second shaft portion are sequentially connected to the same side of the second flange portion along the axial direction, the outer wall of the second shaft portion is further provided with an external thread to cooperate with the internal thread provided on the second locking member.

[0021] As a further description of the above technical solution, the second flange portion is protruded outwardly toward the end surface of the connecting portion to form positioning teeth, and the positioning teeth surround the outer circumference of the connecting portion.

[0022] As a further description of the above technical solution, a second receiving groove is formed between the inner edge of the positioning tooth facing the connecting portion and the outer edge of the connecting portion facing the positioning tooth.

[0023] The present invention further provides a conductive busbar connection structure, which is formed by connecting the conductive busbar connection assembly as described above, and comprises a first conductive busbar and a second conductive busbar respectively provided with connection holes, wherein the first conductive busbar and / or the second conductive busbar are formed with a surface oxide layer;

[0024] A conductive bushing, the conductive bushing being used to electrically connect the first conductive busbar and the second conductive busbar, comprising a first flange portion and a first shaft portion axially connected to one end of the first flange portion, wherein an end surface of the first flange portion facing the first shaft portion and an outer wall of the first shaft portion are both convexly formed with a plurality of first piercing portions;

[0025] When the first conductive busbar / the second conductive busbar has a surface oxide layer formed thereon, the first shaft portion of the conductive bushing is disposed in the connection hole of the first conductive busbar and / or the second conductive busbar, the end surface of the first flange portion facing the first shaft portion abuts against the first conductive busbar / the second conductive busbar, and the multiple first piercing portions all pierce the surface oxide layer of the first conductive busbar / the second conductive busbar; the second conductive busbar / the first conductive busbar without a surface oxide layer abuts against the end surface of the first flange portion facing away from the first shaft portion;

[0026] When the first conductive busbar and the second conductive busbar both form surface oxide layers, the first flange portions of the two conductive bushings abut against the end faces of their first shaft portions, so that the two first shaft portions are respectively arranged in the connection holes of the two conductive busbars, and the end face of any first flange portion facing the first shaft portion connected thereto abuts against the corresponding conductive busbar, and multiple first piercing portions correspondingly pierce the surface oxide layers of the two conductive busbars.

[0027] By means of the above technical solutions, the outstanding effects of the present invention are:

[0028] In the conductive busbar connection assembly for forming a conductive busbar connection structure provided by the present invention, a conductive bushing is used to electrically connect the first conductive busbar and the second conductive busbar, which includes a first flange portion and a first shaft portion axially connected to one end of the first flange portion. The end face of the first flange portion facing the first shaft portion and the outer wall of the first shaft portion are both convexly formed with multiple first puncture portions, and the first conductive busbar and the second conductive busbar are respectively provided with connection holes. When the first conductive busbar or the second conductive busbar forms a surface oxide layer, only one conductive bushing is needed to achieve electrical connection between the two conductive busbars, even if the first shaft portion of the conductive bushing is provided in the connection hole of the first conductive busbar / second conductive busbar formed with a surface oxide layer, so that the end face of the first flange portion of the conductive bushing facing the first shaft portion is abutted against the conductive busbar, so that the multiple first puncture portions can pierce the surface oxide layer of the conductive busbar, and then the other conductive busbar with no surface oxidation is directly abutted against the end face of the first flange portion facing away from the first shaft portion to achieve phase connection. The electrical conduction of the two conductive busbars spaced apart; and if both conductive busbars form a surface oxide layer, two conductive bushings are required, that is, the first flange portions of the two conductive bushings are abutted against the end faces of their first shaft portions, so that the first shaft portions of the two conductive bushings can be respectively and correspondingly arranged in the connection holes of the two conductive busbars, and at the same time, the end face of any first flange portion facing the first shaft portion connected thereto can abut against the corresponding conductive busbar, and then the multiple first piercing portions formed by the two conductive bushings can respectively and correspondingly pierce the surface oxide layers of the two conductive busbars to achieve electrical conduction of the two conductive busbars. Therefore, in the process of using conductive bushings to electrically conduct the two conductive busbars, it is only necessary to select one or two conductive bushings for assembly according to whether the two conductive busbars have formed a surface oxide layer. The assembly is simple and quick, and the surface oxide layer is directly pierced during the assembly process, so there is no need to consider removing the surface oxide layer of the conductive busbar separately, which also effectively reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematic diagram of the axial structure of the conductive bushing in an embodiment of the present invention;

[0030] Figure 2 A half-section schematic diagram of a conductive bushing in an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the axial structure of the first locking member in the first embodiment of the present invention;

[0032] Figure 4 A half-section schematic diagram of the first locking member in the first embodiment of the present invention;

[0033] Figure 5 A half-section schematic diagram of the connection between a conductive bushing and a conductive busbar in the first embodiment of the present invention;

[0034] Figure 6A half-section schematic diagram of the connection between the first locking member and a conductive busbar in the first embodiment of the present invention;

[0035] Figure 7 A state diagram of a process of forming a conductive busbar connection structure in the first embodiment of the present invention;

[0036] Figure 8 Schematic diagram of the structure of the conductive busbar connection structure formed in the first embodiment of the present invention;

[0037] Figure 9 A state diagram of a process of forming a conductive busbar connection structure in the second embodiment of the present invention;

[0038] Figure 10 Schematic diagram of the structure of the conductive busbar connection structure formed in the second embodiment of the present invention;

[0039] Figure 11 This is a schematic diagram of the axial structure of the first locking member in the third embodiment of the present invention;

[0040] Figure 12 Schematic diagram of a half section of the connection between a first locking member, a conductive busbar and a conductive bushing in a third embodiment of the present invention.

[0041] Description of Figure Numbers:

[0042] 1. First conductive busbar; 2. Second conductive busbar; 3. Connecting hole; 4. Conductive bushing; 41. First flange; 42. First shaft; 43. First insertion portion; 44. First receiving groove; 5. First locking member; 51. Second flange; 52. Connecting portion; 53. Second shaft; 54. Threaded hole; 55. Positioning tooth; 56. Second receiving groove; 6. Second locking member; 61. Main body. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be noted that the terms "upper", "middle", "lower", "inside", "outside", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes an implementation method of the present invention based on its overall structure.

[0045] See also Figures 1 to 12 The present invention discloses a conductive busbar connection assembly, which includes:

[0046] A first conductive busbar 1 and a second conductive busbar 2 are respectively provided with a connection hole 3, wherein the first conductive busbar 1 and / or the second conductive busbar 2 are formed with a surface oxide layer;

[0047] A conductive bushing 4 is used to electrically connect the first conductive busbar 1 and the second conductive busbar 2. The conductive bushing 4 includes a first flange portion 41 and a first shaft portion 42 axially connected to one end of the first flange portion 41. The end surface of the first flange portion 41 facing the first shaft portion 42 and the outer wall of the first shaft portion 42 are both convexly formed with a plurality of first piercing portions 43;

[0048] When a surface oxide layer is formed on the first conductive busbar 1 / the second conductive busbar 2, the first shaft portion 42 of the conductive bushing 4 can be arranged in the connection hole 3 of the first conductive busbar 1 and / or the second conductive busbar 2, and the end surface of the first flange portion 41 facing the first shaft portion 42 abuts against the first conductive busbar 1 / the second conductive busbar 2, and the multiple first piercing portions 43 can all pierce the surface oxide layer of the first conductive busbar 1 / the second conductive busbar 2; the second conductive busbar 2 / the first conductive busbar 1 without a surface oxide layer can abut against the end surface of the first flange portion 41 facing away from the first shaft portion 42;

[0049] When the first conductive busbar 1 and the second conductive busbar 2 both form surface oxide layers, the first flange portions 41 of the two conductive bushings 4 are abutted against the end faces of their first shaft portions 42, so that the two first shaft portions 42 can be respectively and correspondingly arranged in the connection holes 3 of the two conductive busbars, and the end face of any first flange portion 41 facing the first shaft portion 42 connected thereto can abut against the corresponding conductive busbar, and multiple first piercing portions 43 can correspondingly pierce the surface oxide layers of the two conductive busbars.

[0050] In the above-mentioned setting, the conductive bushing 4 is used to electrically connect the first conductive busbar 1 and the second conductive busbar 2, and includes a first flange portion 41 and a first shaft portion 42 axially connected to one end of the first flange portion 41. The end surface of the first flange portion 41 facing the first shaft portion 42 and the outer wall of the first shaft portion 42 are both convexly formed with multiple first piercing portions 43, and the first conductive busbar 1 and the second conductive busbar 2 are respectively provided with connecting holes 3. When the first conductive busbar 1 or the second conductive busbar 2 forms a surface oxide layer, only one conductive bushing 4 is needed to realize the electrical connection between the two conductive busbars, even if the first shaft portion 42 of the conductive bushing 4 is arranged in the connection hole 3 of the first conductive busbar 1 / the second conductive busbar 2 formed with the surface oxide layer, the first flange portion 41 of the conductive bushing 4 is made to abut against the end face of the conductive busbar facing the first shaft portion 42, so that the multiple first piercing portions 43 can all pierce the surface oxide layer of the conductive busbar, and then the other conductive busbar without surface oxide directly abuts against the end face of the first flange portion 41 facing away from the first shaft portion 42 to realize the electrical connection between the two conductive busbars. The electrical conduction of the two conductive busbars is achieved; and if both conductive busbars form a surface oxide layer, two conductive bushings 4 are required, that is, the first flange portions 41 of the two conductive bushings 4 are abutted against the end faces of their first shaft portions 42, so that the first shaft portions 42 of the two conductive bushings 4 can be respectively and correspondingly arranged in the connection holes 3 of the two conductive busbars, and at the same time, the end face of any first flange portion 41 facing the first shaft portion 42 connected thereto can abut against the corresponding conductive busbar, and then the multiple first piercing portions 43 formed by the two conductive bushings 4 can respectively and correspondingly pierce the surface oxide layers of the two conductive busbars to achieve electrical conduction of the two conductive busbars. Therefore, in the process of using the conductive bushings 4 to electrically connect the two conductive busbars, it is only necessary to select one or two conductive bushings 4 according to whether the two conductive busbars have formed a surface oxide layer to assemble them. The assembly is simple and quick, and the surface oxide layer is directly pierced during the assembly process, so there is no need to consider removing the surface oxide layer of the conductive busbar separately, which also effectively reduces the production cost.

[0051] See also Figures 1 to 8Specifically, in the first embodiment, it is defined that the first conductive busbar 1 and the second conductive busbar 2 are both placed horizontally, and a vertically extending connection hole 3 is formed thereon. The first conductive busbar 1 forms a surface oxide layer, while the second conductive busbar 2 has no surface oxide layer. When the two conductive busbars are connected, only one conductive bushing 4 is required, even if the first shaft portion 42 of the conductive field bushing is arranged in the connection hole 3 of the first conductive busbar 1, and at the same time, the end surface of the first flange portion 41 facing the first shaft portion 42 is abutted against the upper surface of the first conductive busbar 1, so that the first puncture on the first shaft portion 42 and the first flange portion 41 can pierce the surface oxide layer of the first conductive busbar 1, and at the same time, the lower surface of the second conductive busbar 2 is directly abutted against the end surface of the first flange portion 41 facing away from the first shaft portion 42, so that the first conductive busbar 1 and the second conductive busbar 2 are electrically conductive, and there is no need to consider removing the surface oxide layer of the first conductive busbar 1 separately.

[0052] Specifically, in this embodiment, the first piercing portions 43, formed by the first flange portion 41 protruding outward toward the end surface of the first shaft portion 42, are disposed around the first shaft portion 42, with their tips axially facing away from the first flange portion 41. This allows the first piercing portions 43 to successfully pierce the surface oxide layer of the first conductive busbar 1 when the first flange portion abuts the first conductive busbar 1. It should be understood that while the first piercing portions 43, formed by the first flange portion 41 protruding outward toward the end surface of the first shaft portion 42, can successfully pierce the surface oxide layer, their shape can be appropriately varied; their primary characteristic is that their tips are as sharp as possible.

[0053] Specifically, in this embodiment, the plurality of first piercing portions 43 formed by the outward protrusion of the end surface of the first flange portion 41 toward the first shaft portion 42 all extend radially along the first flange portion 41 and diverge outward with the first shaft portion 42 as the center.

[0054] Specifically, in this embodiment, when the first shaft portion 42 is positioned in the connection hole 3 of the first conductive busbar 1, the multiple first piercing portions 43 formed by the outward projection of the outer wall of the first shaft portion 42 form an interference fit with the connection hole 3 of the first conductive busbar 1, thereby providing anti-torsion and anti-pullout forces when piercing the surface oxide layer on the inner wall of the connection hole 3. Specifically, in this embodiment, the multiple first piercing portions 43 formed by the outward projection of the outer wall of the first shaft portion 42 have a straight knurling shape. Of course, in other embodiments, they may also have an oblique knurling shape or a polygonal shape.

[0055] Specifically, in this embodiment, the conductive bushing 4 also includes a first receiving groove 44, which is formed by an inward depression at the connection between the first flange portion 41 and the first shaft portion 42. The first receiving groove 44 can make the end face of the first flange portion 41 axially toward the first shaft portion 42 fit the first conductive busbar 1 as much as possible, that is, increase the contact area; in addition, it can allow excess deformed material of the first conductive busbar 1 (that is, the material that undergoes plastic deformation of the first conductive busbar 1 but cannot flow into the multiple first piercing portions 43 formed by the protrusion of the outer wall of the first shaft portion 42) to flow in, thereby providing additional anti-expulsion force, so that the connection between the conductive bushing 4 and the first conductive busbar 1 is more stable.

[0056] Specifically, in this embodiment, in order to ensure the abutment relationship between the second conductive busbar 2 and the conductive bushing 4 to further make the current connection point stable and reliable, a locking unit for axially locking the two conductive busbars and the conductive bushing 4 is also provided, and the locking unit includes a first locking member 5 and a second locking member 6; wherein, the first locking member 5 includes a second flange portion 51, a connecting portion 52 and a second shaft portion 53, and the connecting portion 52 and the second shaft portion 53 are axially connected to the upper and lower sides of the second flange portion 51, and the connecting portion 52 can be interference-connected in the connecting hole 3 of the first conductive busbar 1, so that the end face of the second flange portion 51 axially facing the connecting portion 52 abuts against the lower surface of the first conductive busbar 1; and the second locking member 6 can axially penetrate the two conductive busbars and the conductive bushing 4 from the upper side of the second busbar away from the first conductive busbar 1 and be locked with the first locking member 5. Among them, the outer diameter of the second shaft portion 53 is smaller than the outer diameter of the second flange portion 51, the purpose of which is to avoid other components in the installation / support area, making the installation more reliable and convenient; at the same time, compared with the traditional integral cylinder (that is, setting a longer second flange portion 51), the weight can be greatly reduced.

[0057] Specifically, in this embodiment, the first locking member 5 is further provided with a threaded hole 54 that axially passes through the connecting portion 52, the second flange portion 51 and the second shaft portion 53, so as to cooperate with the external thread provided on the main body 61 of the second locking member 6. The second locking member 6 is, for example, a hexagonal flange bolt, and its rod-shaped main body 61 is provided with an external thread.

[0058] Specifically, in this embodiment, the second flange portion 51 is formed with a positioning tooth 55 on the end surface protruding toward the connecting portion 52, and the positioning tooth 55 surrounds the outer circumference of the connecting portion 52. During the process of connecting the first conductive busbar 1, the first conductive busbar 1 will flow radially to flow into the gap of the positioning tooth 55, so that the first conductive busbar 1 and the first locking member 5 are interlocked with each other, thereby preventing relative rotation after the two are connected. Furthermore, in this embodiment, the inner edge of the positioning tooth 55 is circular and the outer edge is serrated. When the first locking member 5 is connected to the first conductive busbar 1, the gap between the two adjacent teeth is used to accommodate part of the material of the first conductive busbar 1, so that the first conductive busbar 1 and the first locking member 5 are tightly interlocked with each other. Of course, in other embodiments, the outer edge of the positioning tooth 55 can also be set to other shapes, such as a circular outer edge, a rounded octagon, etc.

[0059] Specifically, in this embodiment, a second annular groove 56 is formed between the inner edge of the positioning tooth 55 facing the connecting portion 52 and the outer edge of the connecting portion 52 facing the positioning tooth 55. In the process of connecting the first locking member 5 to the first conductive busbar 1, part of the material of the first conductive busbar 1 will also be forced to flow into the second groove 56 to provide force for the first locking member 5 to be ejected from the first conductive busbar 1.

[0060] Specifically, in this embodiment, the first locking member 5 and the conductive bushing 4 are both connected to the first conductive busbar 1 in steps using press riveting (for example, they can be connected separately using a countersunk flat press riveting tool). The installation order can be selected according to actual needs. However, considering that the conductive bushing 4 is generally made of copper, while the first locking member 5 is often made of carbon steel, and copper is generally weaker than carbon steel, it is recommended to install the high-strength first locking member 5 first, thereby ensuring that the connection quality of both to the first conductive busbar 1 meets production requirements. Then, they are locked to the second conductive busbar 2 using the first locking member 5 and the second locking member 6 to ensure a stable and reliable overall connection. Of course, in other embodiments, in special locations where riveting is difficult, it is also possible to consider using pull rivets to install the conductive bushing 4 and the first locking member 5 integrally to the first conductive busbar 1. It should be understood that in this case, a corresponding pull rivet deformation portion must be provided, but this does not affect the final effect of the two conductive busbars achieving electrical connection by puncturing the surface oxide layer.

[0061] See also Figures 1 to 10Specifically, in the second embodiment, unlike the first embodiment, both the first conductive busbar 1 and the second conductive busbar 2 are formed with a surface oxide layer. Therefore, two conductive bushings 4 are used for connection, specifically: the first flange portions 41 of the two conductive bushings 4 are arranged relative to each other away from the end faces of their first shaft portions 42, so that the first shaft portions 42 of the two conductive bushings 4 can be respectively and correspondingly arranged in the connection holes 3 of the two conductive busbars, and at the same time, the end face of any first flange portion 41 facing the first shaft portion 42 connected thereto can abut against the corresponding conductive busbar, and then the multiple first piercing portions 43 formed by the two conductive bushings 4 can respectively and correspondingly pierce the surface oxide layers of the two conductive busbars, and the first flange portions 41 of the two conductive bushings 4 are arranged relative to each other away from the end faces of their first shaft portions 42 while abutting against each other, thereby achieving electrical conductivity between the two conductive busbars. The connecting portion 52 of the first locking member 5 remains connected to the first conductive busbar 1, and the second locking member 6 penetrates the two conductive busbars and the two conductive bushings 4 from top to bottom and locks with the first locking member 5, further ensuring the stability and reliability of the current connection point. Of course, in other embodiments, depending on the actual installation situation, the connecting portion 52 of the first locking member 5 can be connected to the second conductive busbar 2 while the second locking member 6 penetrates the two conductive busbars and the two conductive bushings 4 from bottom to top and locks with the first locking member 5.

[0062] See also Figures 1 to 8 ,as well as Figure 11 and Figure 12 Specifically, in the third embodiment, unlike the first embodiment, although the first locking member 5 includes a second flange portion 51, a connecting portion 52, and a second shaft portion 53, the connecting portion 52 and the second shaft portion 53 are sequentially connected to the same side of the second flange portion 51; thus, the connecting portion 52 of the first locking member 5 is interference-connected with the connecting hole 3 of the first conductive busbar 1, and when the end surface of the second flange portion 51 axially facing the connecting portion 52 abuts against the lower surface of the first conductive busbar 1, the second shaft portion 53 directly penetrates the first conductive busbar 1 upward and continues upward through the second conductive busbar 2. The portion of the shaft portion that passes through the second conductive busbar 2 is locked with the second locking member 6. Furthermore, in this embodiment, the outer wall of the second shaft portion 53 is provided with an external thread, and the second locking member 6 is provided with an internal thread (e.g., a nut), so that the first locking member 5 and the second locking member 6 can be locked together by the internal and external threads.

[0063] When the connecting portion 52 and the second shaft portion 53 are sequentially connected to the same side of the second flange portion 51 , the second shaft portion 53 can axially penetrate the two conductive busbars and the conductive bushing 4 and be locked with the second locking member 6 .

[0064] See also Figures 1 to 12 Specifically, the present invention further provides a conductive busbar connection structure, which is formed by connecting the conductive busbar connection components described above, and includes:

[0065] A first conductive busbar 1 and a second conductive busbar 2 are respectively provided with a connection hole 3, wherein the first conductive busbar 1 and / or the second conductive busbar 2 are formed with a surface oxide layer;

[0066] A conductive bushing 4 is used to electrically connect the first conductive busbar 1 and the second conductive busbar 2. The conductive bushing 4 includes a first flange portion 41 and a first shaft portion 42 axially connected to one end of the first flange portion 41. The end surface of the first flange portion 41 facing the first shaft portion 42 and the outer wall of the first shaft portion 42 are both convexly formed with a plurality of first piercing portions 43;

[0067] When a surface oxide layer is formed on the first conductive busbar 1 / the second conductive busbar 2, the first shaft portion 42 of the conductive bushing 4 is arranged in the connection hole 3 of the first conductive busbar 1 and / or the second conductive busbar 2, and the end surface of the first flange portion 41 facing the first shaft portion 42 abuts against the first conductive busbar 1 / the second conductive busbar 2, and the multiple first piercing portions 43 all pierce the surface oxide layer of the first conductive busbar 1 / the second conductive busbar 2; the second conductive busbar 2 / the first conductive busbar 1 without a surface oxide layer abuts against the end surface of the first flange portion 41 facing away from the first shaft portion 42;

[0068] When the first conductive busbar 1 and the second conductive busbar 2 both form a surface oxide layer, the first flange portions 41 of the two conductive bushings 4 are abutted against the end faces of their first shaft portions 42, so that the two first shaft portions 42 are respectively and correspondingly arranged in the connection holes 3 of the two conductive busbars, and the end face of any first flange portion 41 facing the first shaft portion 42 connected thereto abuts against the corresponding conductive busbar, and multiple first piercing portions 43 correspondingly pierce the surface oxide layers of the two conductive busbars.

[0069] In addition, the conductive busbar connection structure further includes a locking unit for axially locking the two conductive busbars and the conductive bushing 4, and the locking unit includes a first locking member 5 and a second locking member 6; wherein,

[0070] The first locking member 5 includes a second flange portion 51, a connecting portion 52, and a second shaft portion 53. The connecting portion 52 and the second shaft portion 53 are axially connected to both sides of the second flange portion 51; or, the connecting portion 52 and the second shaft portion 53 are sequentially connected to the same side of the second flange portion 51.

[0071] The connecting portion 52 is interference-connected in the connecting hole 3 of the first conductive busbar 1 / the second conductive busbar 2, so that the end surface of the second flange portion 51 axially facing the connecting portion 52 abuts against the first conductive busbar 1 / the second conductive busbar 2;

[0072] When the connecting portion 52 and the second shaft portion 53 are axially connected to both sides of the second flange portion 51, the second locking member 6 axially penetrates the two conductive busbars and the conductive bushing 4 from the side of the second conductive busbar 2 / first conductive busbar 1 facing away from the first conductive busbar 1 / second conductive busbar 2 and is locked with the first locking member 5;

[0073] When the connecting portion 52 and the second shaft portion 53 are sequentially connected to the same side of the second flange portion 51 , the second shaft portion 53 axially penetrates the two conductive busbars and the conductive bushing 4 and is locked with the second locking member 6 .

[0074] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any changes, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A conductive busbar connection assembly, characterized in that: include: A first conductive busbar and a second conductive busbar are respectively provided with connection holes, wherein the first conductive busbar and / or the second conductive busbar are formed with a surface oxide layer; A conductive bushing, the conductive bushing being used to electrically connect the first conductive busbar and the second conductive busbar, comprising a first flange portion and a first shaft portion axially connected to one end of the first flange portion, wherein an end surface of the first flange portion facing the first shaft portion and an outer wall of the first shaft portion are both convexly formed with a plurality of first piercing portions; When the first conductive busbar / the second conductive busbar has a surface oxide layer, the first shaft portion of the conductive bushing can be arranged in the connection hole of the first conductive busbar and / or the second conductive busbar, and the end surface of the first flange portion facing the first shaft portion abuts against the first conductive busbar / the second conductive busbar, and the multiple first piercing portions can all pierce the surface oxide layer of the first conductive busbar / the second conductive busbar; the second conductive busbar / the first conductive busbar without a surface oxide layer can abut against the end surface of the first flange portion facing away from the first shaft portion; When the first conductive busbar and the second conductive busbar both form surface oxide layers, the first flange portions of the two conductive bushings are abutted against the end faces of their first shaft portions, so that the two first shaft portions can be respectively and correspondingly arranged in the connection holes of the two conductive busbars, and the end face of any first flange portion facing the first shaft portion connected thereto can abut against the corresponding conductive busbar, and multiple first piercing portions can correspondingly pierce the surface oxide layers of the two conductive busbars.

2. The conductive busbar connection assembly according to claim 1, characterized in that: A plurality of first piercing portions formed by the first flange portion protruding outward toward the end surface of the first shaft portion are arranged around the first shaft portion, and the tips thereof are axially away from the first flange portion.

3. The conductive busbar connection assembly according to claim 2, characterized in that: The plurality of first piercing portions formed by the first flange portion protruding outward toward the end surface of the first shaft portion all extend in the radial direction of the first flange portion.

4. The connection assembly according to claim 1, wherein: The plurality of first piercing portions formed by the outward protrusion of the outer wall of the first shaft portion are in a straight knurling shape, an oblique knurling shape or a polygonal shape.

5. The conductive busbar connection assembly according to claim 1, characterized in that: The conductive bushing further includes a first receiving groove, which is formed by an inward depression at a connection point between the first flange portion and the first shaft portion.

6. The conductive busbar connection assembly according to claim 1, characterized in that: It also includes a locking unit for axially locking the two conductive busbars and the conductive bushing, the locking unit including a first locking member and a second locking member; wherein, The first locking member includes a second flange portion, a connecting portion, and a second shaft portion, wherein the connecting portion and the second shaft portion are axially connected to two sides of the second flange portion; or, the connecting portion and the second shaft portion are sequentially connected to the same side of the second flange portion; The connecting portion can be interference-connected in the connecting hole of the first conductive busbar / the second conductive busbar, so that the end surface of the second flange portion facing the connecting portion in the axial direction abuts against the first conductive busbar / the second conductive busbar; When the connecting portion and the second shaft portion are axially connected to both sides of the second flange portion, the second locking member can axially penetrate the two conductive busbars and the conductive bushing from the side of the second conductive busbar / first conductive busbar facing away from the first conductive busbar / second conductive busbar and be locked with the first locking member; When the connecting portion and the second shaft portion are sequentially connected to the same side of the second flange portion, the second shaft portion can axially penetrate the two conductive busbars and the conductive bushing and be locked with the second locking member.

7. The conductive busbar connection assembly according to claim 6, characterized in that: When the connecting portion and the second shaft portion are axially connected to both sides of the second flange portion, the first locking member is further provided with a threaded hole axially penetrating the connecting portion, the second flange portion and the second shaft portion to cooperate with the external thread provided on the main portion of the second locking member; When the connecting portion and the second shaft portion are sequentially connected to the same side of the second flange portion along the axial direction, the outer wall of the second shaft portion is further provided with an external thread to cooperate with the internal thread provided on the second locking member.

8. The conductive busbar connection assembly according to claim 6, characterized in that: The end surface of the second flange portion facing the connecting portion is protruded outwardly to form a positioning tooth, and the positioning tooth surrounds the outer circumference of the connecting portion.

9. The conductive busbar connection assembly according to claim 7, characterized in that: A second receiving groove is formed between the inner edge of the positioning tooth facing the connecting portion and the outer edge of the connecting portion facing the positioning tooth.

10. A conductive busbar connection structure, formed by connecting the conductive busbar connection assembly according to any one of claims 1 to 9, characterized in that: include: A first conductive busbar and a second conductive busbar are respectively provided with connection holes, wherein the first conductive busbar and / or the second conductive busbar are formed with a surface oxide layer; A conductive bushing, the conductive bushing being used to electrically connect the first conductive busbar and the second conductive busbar, comprising a first flange portion and a first shaft portion axially connected to one end of the first flange portion, wherein an end surface of the first flange portion facing the first shaft portion and an outer wall of the first shaft portion are both convexly formed with a plurality of first piercing portions; When the first conductive busbar / the second conductive busbar has a surface oxide layer formed thereon, the first shaft portion of the conductive bushing is disposed in the connection hole of the first conductive busbar and / or the second conductive busbar, the end surface of the first flange portion facing the first shaft portion abuts against the first conductive busbar / the second conductive busbar, and the multiple first piercing portions all pierce the surface oxide layer of the first conductive busbar / the second conductive busbar; the second conductive busbar / the first conductive busbar without a surface oxide layer abuts against the end surface of the first flange portion facing away from the first shaft portion; When the first conductive busbar and the second conductive busbar both form surface oxide layers, the first flange portions of the two conductive bushings abut against the end faces of their first shaft portions, so that the two first shaft portions are respectively arranged in the connection holes of the two conductive busbars, and the end face of any first flange portion facing the first shaft portion connected thereto abuts against the corresponding conductive busbar, and multiple first piercing portions correspondingly pierce the surface oxide layers of the two conductive busbars.

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