Power transmission component, electrical connection assembly and charging pedestal

Abstract

To provide a power transmission component that can effectively avoid an electrochemical corrosion problem, extend the service life of products, and improve the electrical connection performance of the products.SOLUTION: A power transmission component includes an aluminum bar (10) having a connection end portion (11) and an adapter (12). The adapter (12) has a connection hole (102) formed along a thickness direction of the aluminum bar (10), and is fixed to the terminal (2) via a connection member passing through the connection hole (102). When the power transmission component (1) is fixed to the terminal (2), the adapter (12) comes into direct electrical contact with the terminal (2), and the aluminum bar (10) does not come into contact with the terminal (2) and is electrically connected to the terminal (2) via the adapter (12). The adapter (12) and the terminal (2) are copper components or the like, and the material of the electrical contact surface between the adapter (12) and the terminal (2) that are in contact with each other is copper or a copper alloy.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims the benefit of Chinese Patent Application No. CN202311211087.2, filed on September 19, 2023 in the State Intellectual Property Office of China, the entire disclosure of which is incorporated herein by reference.

[0002] The present invention relates to a power transmission component, an electrical connection assembly comprising the power transmission component, and a charging base comprising the electrical connection assembly. [Background technology]

[0003] In the prior art, a charging base in a new energy vehicle typically includes a terminal and a wire electrically connected to the terminal. At present, the charging current of the whole vehicle is required to increase to 600A, which will also increase to 1000A in the future. At present, the traditional wire cannot meet the current-carrying requirements of the whole vehicle. In order to improve the current-carrying capacity of the wire, an aluminum bar is usually used to replace the traditional wire in the existing technology. One end of the aluminum bar is fixed to the terminal by a bolt. However, in the prior art, the terminal is usually a copper terminal, so that electrochemical corrosion of the electrical contact surface between the aluminum bar and the terminal may occur, thereby reducing the service life and electrical connection performance of the product. Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE PRESENT EMBODIMENT The present invention has been made to overcome or alleviate at least one aspect of the above-mentioned disadvantages. [Means for solving the problem]

[0005] According to one aspect of the present invention, a power transfer component is provided. The power transfer component includes an aluminum bar having a connection end and an adapter connected to the connection end of the aluminum bar to electrically connect the aluminum bar to a terminal. The adapter is formed with a connection hole extending through the adapter along the thickness direction of the aluminum bar, so that the power transfer component can be fixed to the terminal via a connection member passing through the connection hole. When the power transfer component is fixed to the terminal, the adapter is in direct electrical contact with the terminal, and the aluminum bar is not in contact with the terminal but is electrically connected to the terminal via the adapter. The adapter and the terminals are copper parts, copper alloy parts, or conductive parts having copper plating on their surfaces, so that the material of the electrical contact surface between the adapter and the terminals that contact each other is copper or a copper alloy.

[0006] According to an exemplary embodiment of the present invention, the adapter is welded or riveted to the connecting end of the aluminum bar.

[0007] According to another exemplary embodiment of the present invention, the adapter is welded to the connection end of the aluminum bar by ultrasonic welding, brazing, or friction welding.

[0008] According to another exemplary embodiment of the present invention, through holes corresponding to the connection holes of the adapter are formed in the connection ends of the aluminum bars, and the power transmission components are fixed to the terminals by connection members passing through the connection holes and the through holes.

[0009] According to another exemplary embodiment of the present invention, the connection hole and the through hole have a first diameter in the length direction of the aluminum bar and a second diameter in the width direction of the aluminum bar, the first diameter being larger than the second diameter, thereby allowing the connection end of the aluminum bar to move relative to the connection member in the length direction of the aluminum bar.

[0010] According to another exemplary embodiment of the present invention, the connection end of the aluminum bar has a top surface and a bottom surface that are opposite each other in the thickness direction of the aluminum bar, the bottom surface of the adapter is welded to the top surface of the connection end of the aluminum bar, and the top surface of the adapter is used for electrical contact with the terminal.

[0011] According to another exemplary embodiment of the present invention, the top surface of the connection end of the aluminum bar and the top and bottom surfaces of the adapter are flat surfaces perpendicular to the thickness direction of the aluminum bar, the top surface of the connection end of the aluminum bar is lower than the top surface of the main body of the aluminum bar, and the top surface of the adapter is flush with the top surface of the main body of the aluminum bar.

[0012] According to another exemplary embodiment of the present invention, the bottom surface of the connection end of the aluminum bar is flush with the bottom surface of the body of the aluminum bar, and the peripheral surface of the adapter is flush with or smoothly transitions to the peripheral surface of the connection end of the aluminum bar.

[0013] According to another exemplary embodiment of the present invention, the width of the connection end of the aluminum bar is smaller than the width of the body of the aluminum bar, and the connection end of the aluminum bar is biased toward one side in the width direction of the aluminum bar.

[0014] According to another exemplary embodiment of the present invention, the width of the connection end of the aluminum bar is equal to the width of the main body of the aluminum bar, and the two widthwise faces of the connection end of the aluminum bar are flush with the two widthwise faces of the main body of the aluminum bar.

[0015] According to another exemplary embodiment of the present invention, the adapter comprises a rear portion used for electrically connecting to the connection end of the aluminum bar and a front portion used for electrically connecting to the connection end of the terminal, and a connection hole is formed in the front portion of the adapter, so that the front portion of the adapter can be fixed to the terminal via a connection member passing through the connection hole.

[0016] According to another exemplary embodiment of the present invention, the connection hole has a first opening diameter (aperture) in the length direction of the aluminum bar and a second opening diameter (aperture) in the width direction of the aluminum bar, the first diameter being larger than the second diameter, thereby allowing the connection end of the aluminum bar to move relative to the connection member in the length direction of the aluminum bar.

[0017] According to another exemplary embodiment of the present invention, a thickness of the front portion of the adapter is greater than a thickness of the rear portion of the adapter, and a top surface of the front portion of the adapter is flush with a top surface of the rear portion of the adapter.

[0018] According to another exemplary embodiment of the present invention, the bottom surface of the rear part of the adapter is welded to the top surface of the connecting end of the aluminum bar, the rear end surface of the front end of the adapter is welded to the front end surface of the connecting end of the aluminum bar, and the top surface of the front end of the adapter is used for electrical contact with the terminal.

[0019] According to another exemplary embodiment of the present invention, the top surface of the connection end of the aluminum bar and the top and bottom surfaces of the rear and front of the adapter are flat surfaces perpendicular to the thickness direction of the aluminum bar, the top surface of the connection end of the aluminum bar is lower than the top surface of the main body of the aluminum bar, and the top surface of the adapter is flush with the top surface of the main body of the aluminum bar.

[0020] According to another exemplary embodiment of the present invention, the bottom surface of the connection end of the aluminum bar is flush with the bottom surface of the body of the aluminum bar, the two widthwise surfaces of the adapter are flush with the two widthwise surfaces of the connection end of the aluminum bar, and the bottom surface of the front of the adapter is flush with the bottom surface of the connection end of the aluminum bar.

[0021] According to another exemplary embodiment of the present invention, the width of the connection end of the aluminum bar is equal to the width of the main body of the aluminum bar, and the two widthwise faces of the connection end of the aluminum bar are flush with the two widthwise faces of the main body of the aluminum bar.

[0022] According to another exemplary embodiment of the present invention, the power transfer component further comprises an insulating layer wrapped around the body of the aluminum bar.

[0023] According to another aspect of the present invention, there is provided an electrical connection assembly comprising the power transfer component described above, a terminal having a flat rear connection end, and a connection member used to secure an adapter of the power transfer component to the rear connection end of the terminal, the adapter and the terminal being copper parts, copper alloy parts, or conductive parts having copper plating on their surfaces, such that the material of the electrical contact surface between the adapter and the terminal in contact with each other is copper or a copper alloy.

[0024] According to an exemplary embodiment of the present invention, a connection through hole is formed in the rear connection end of the terminal, and the connection member comprises a bolt and a nut, the bolt passing through the connection hole in the adapter and the connection through hole in the rear connection end of the terminal and screwed into the nut.

[0025] According to another exemplary embodiment of the present invention, the terminal also has a cylindrical forward mating end, the forward mating end of the terminal being adapted for mating with a mating terminal.

[0026] According to another aspect of the present invention, there is provided a charging base comprising a housing and the above-mentioned electrical connection assembly, the terminals of the electrical connection assembly being mounted on the housing and the aluminum bar of the power transfer component extending from the housing.

[0027] In the above-mentioned exemplary embodiment of the present invention, the material of the electrical contact surface of the adapter that is in direct electrical contact with the terminal is the same as the material of the electrical contact surface of the terminal, thereby effectively avoiding the problem of electrochemical corrosion, prolonging the service life of the product, and improving the electrical connection performance of the product.

[0028] The above and other features of the present invention will become more apparent from the detailed description of illustrative embodiments thereof, taken in conjunction with the accompanying drawings. [Brief description of the drawings]

[0029] [Figure 1] FIG. 1 is a diagrammatic perspective view of an electrical connection assembly according to a first embodiment of the present invention. [Diagram 2] 1 is a longitudinal cross-sectional view of an electrical connection assembly according to a first embodiment of the present invention. [Diagram 3] FIG. 1 is an exploded view illustrating an electrical connection assembly according to a first embodiment of the present invention. [Figure 4] FIG. 2 is an explanatory perspective view of an aluminum bar and an adapter according to the first embodiment of the present invention. [Diagram 5] FIG. 11 is a diagrammatic perspective view of an electrical connection assembly according to a second embodiment of the present invention. [Figure 6] FIG. 4 is a longitudinal cross-sectional view of an electrical connection assembly according to a second embodiment of the present invention. [Figure 7] FIG. 5 is an exploded view illustrating an electrical connection assembly according to a second embodiment of the present invention. [Figure 8] FIG. 11 is an explanatory perspective view of an aluminum bar and an adapter according to a second embodiment of the present invention. [Figure 9] FIG. 10 is a diagrammatic perspective view of an electrical connection assembly according to a third embodiment of the present invention. [Figure 10] FIG. 11 is a longitudinal cross-sectional view of an electrical connection assembly according to a third embodiment of the present invention. [Figure 11] FIG. 10 is an exploded view illustrating an electrical connection assembly according to a third embodiment of the present invention. [Figure 12] FIG. 11 is an explanatory perspective view of an aluminum bar and an adapter according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0030] Exemplary embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numerals refer to like elements. However, the present disclosure may be implemented in many different forms and should not be construed as being limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the present disclosure to those skilled in the art.

[0031] In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, it will be apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form to simplify the drawings.

[0032] According to a general concept of the present invention, there is provided a power transfer component comprising an aluminum bar having a connection end and an adapter connected to the connection end of the aluminum bar for electrically connecting the aluminum bar to a terminal. The adapter is formed with a connection hole extending through the adapter along the thickness direction of the aluminum bar, so that the power transfer component can be fixed to the terminal via a connection member passing through the connection hole. When the power transfer component is fixed to the terminal, the adapter is in direct electrical contact with the terminal and the aluminum bar is not in contact with the terminal but is electrically connected to the terminal via the adapter. The adapter and the terminals are copper parts, copper alloy parts, or conductive parts having copper plating on their surfaces, so that the material of the electrical contact surface between the adapter and the terminals that contact each other is copper or a copper alloy.

[0033] According to another general aspect of the invention, there is provided an electrical connection assembly comprising a power transfer component as described above, a terminal having a flat rear connection end, and a connection member used to secure an adapter of the power transfer component to the rear connection end of the terminal, the adapter and the terminal being copper parts, copper alloy parts, or conductive parts having copper plating on their surfaces, such that the material of the electrical contact surface between the adapter and the terminal in contact with each other is copper or a copper alloy.

[0034] According to another general aspect of the present invention, there is provided a charging base comprising a housing and the electrical connection assembly as described above, the terminals of the electrical connection assembly being mounted on the housing and the aluminum bar of the power transfer component extending from the housing.

[0035] First embodiment 1 to 4 show an electrical connection assembly according to a first embodiment of the present invention. Of these, FIG. 1 shows an explanatory perspective view of the electrical connection assembly according to the first embodiment of the present invention. FIG. 2 shows a longitudinal sectional view of the electrical connection assembly according to the first embodiment of the present invention. FIG. 3 shows an explanatory exploded view of the electrical connection assembly according to the first embodiment of the present invention. FIG. 4 shows an explanatory perspective view of an aluminum bar 10 and an adapter 12 according to the first embodiment of the present invention.

[0036] As shown in FIGS. 1 to 4, in an exemplary embodiment of the present invention, a power transmission component 1 is disclosed. The power transmission component 1 includes an aluminum bar 10 and an adapter 12. The aluminum bar 10 has a connection end 11. The adapter 12 is connected to the connection end 11 of the aluminum bar 10, which is used to electrically connect the aluminum bar 10 to a terminal 2. The adapter 12 is formed with a connection hole 102 extending through the adapter 12 along the thickness direction of the aluminum bar 10, and therefore, the power transmission component 1 can be fixed to the terminal 2 via a connection member 3 passing through the connection hole 102. When the power transmission component 1 is fixed to the terminal 2, the adapter 12 is in direct electrical contact with the terminal 2, while the aluminum bar 10 is not in contact with the terminal 2 and is electrically connected to the terminal 2 via the adapter 12. The adapter 12 and the terminals 2 are copper parts, copper alloy parts, or conductive parts with copper clad on the surface, and therefore the material of the electrical contact surface between the adapter 12 and the terminals 2 is copper or a copper alloy.

[0037] As shown in FIGS. 1-4, in the illustrated embodiment, the adapter 12 may be welded or riveted to the connection end 11 of the aluminum bar 10 .

[0038] As shown in Figures 1-4, in the illustrated embodiment, the adapter 12 may be welded to the connection end 11 of the aluminum bar 10 by ultrasonic welding, brazing, or friction welding.

[0039] 1 to 4, in the illustrated embodiment, a through hole 101 corresponding to a connection hole 102 of an adapter 12 is formed in a connection end 11 of an aluminum bar 10. The power transmission component 1 is fixed to a terminal 2 by a connection member 3 passing through the connection hole 102 and the through hole 101.

[0040] 1 to 4, in the illustrated embodiment, the connection hole 102 and the through hole 101 have a first diameter in the length direction of the aluminum bar 10 and a second diameter in the width direction of the aluminum bar 10. The first diameter is larger than the second diameter, thereby allowing the connection end 11 of the aluminum bar 10 to move relative to the connection member 3 in the length direction of the aluminum bar 10.

[0041] 1 to 4, in the illustrated embodiment, the connection end 11 of the aluminum bar 10 has a top surface 11a and a bottom surface that are opposite to each other in the thickness direction of the aluminum bar 10. The bottom surface of the adapter 12 is welded to the top surface 11a of the connection end 11 of the aluminum bar 10, and the top surface 12a of the adapter 12 is used for electrical contact with the terminal 2.

[0042] 1 to 4, in the illustrated embodiment, the top surface 11a of the connection end 11 of the aluminum bar 10 and the top surface 12a and bottom surface of the adapter 12 are flat surfaces perpendicular to the thickness direction of the aluminum bar 10. The top surface 11a of the connection end 11 of the aluminum bar 10 is lower than the top surface 10a of the main body of the aluminum bar 10, and the top surface 12a of the adapter 12 is flush with the top surface 10a of the main body of the aluminum bar 10.

[0043] As shown in Figures 1 to 4, in the illustrated embodiment, the bottom surface of the connection end 11 of the aluminum bar 10 is flush with the bottom surface of the main body of the aluminum bar 10, and the peripheral surface of the adapter 12 is flush with or smoothly transitions to the peripheral surface of the connection end 11 of the aluminum bar 10.

[0044] As shown in Figures 1 to 4, in the illustrated embodiment, the width of the connection end 11 of the aluminum bar 10 is smaller than the width of the main body of the aluminum bar 10, and the connection end 11 of the aluminum bar 10 is offset toward one side in the width direction of the aluminum bar 10.

[0045] As shown in FIGS. 1-4, in the illustrated embodiment, the power transfer component 1 further includes an insulating layer 13 wrapped around the body of the aluminum bar 10. As shown in FIG.

[0046] As shown in Figures 1 to 4, in another exemplary embodiment of the present invention, an electrical connection assembly is also disclosed. The electrical connection assembly includes a power transmission component, a terminal 2, and a connection member 3. The terminal 2 has a flat rear connection end 21. The connection member 3 is used to fix an adapter 12 of the power transmission component 1 to the rear connection end 21 of the terminal 2. The adapter 12 and the terminal 2 are copper parts, copper alloy parts, or conductive parts having copper plating on the surface, and therefore the material of the electrical contact surface between the adapter 12 and the terminal 2 is copper or copper alloy.

[0047] 1 to 4, in the illustrated embodiment, a connection through-hole 201 is formed in the rear connection end 21 of the terminal 2, and the connection member 3 includes a bolt 31 and a nut 32. The bolt 31 passes through the connection hole 102 in the adapter 12 and the connection through-hole 201 in the rear connection end 21 of the terminal 2, and is screwed into the nut 32.

[0048] As shown in Figures 1 to 4, in the illustrated embodiment, terminal 2 also has a cylindrical front mating end 22, which is used for mating with a mating terminal (not shown, e.g., for mating with a mating terminal of a charging gun).

[0049] As shown in Figures 1 to 4, in another exemplary embodiment of the present invention, a charging base is also disclosed. The charging base includes a housing (not shown) and the above-mentioned electrical connection assembly. The terminal 2 of the electrical connection assembly is installed in the housing, and the aluminum bar 10 of the power transmission component 1 extends from the housing.

[0050] Second embodiment 5 to 8 show an electrical connection assembly according to a second embodiment of the present invention. Of these, FIG. 5 shows an explanatory perspective view of the electrical connection assembly according to the second embodiment of the present invention. FIG. 6 shows a longitudinal sectional view of the electrical connection assembly according to the second embodiment of the present invention. FIG. 7 shows an explanatory exploded view of the electrical connection assembly according to the second embodiment of the present invention. FIG. 8 shows an explanatory perspective view of an aluminum bar 10 and an adapter 12 according to the second embodiment of the present invention.

[0051] As shown in Figs. 5 to 8, in an exemplary embodiment of the present invention, a power transmission component 1 is disclosed. The power transmission component 1 includes an aluminum bar 10 and an adapter 12. The aluminum bar 10 has a connection end 11. The adapter 12 is connected to the connection end 11 of the aluminum bar 10, which is used to electrically connect the aluminum bar 10 to a terminal 2. The adapter 12 is formed with a connection hole 102 extending through the adapter 12 along the thickness direction of the aluminum bar 10, and therefore, the power transmission component 1 can be fixed to the terminal 2 via a connection member 3 passing through the connection hole 102. When the power transmission component 1 is fixed to the terminal 2, the adapter 12 is in direct electrical contact with the terminal 2, while the aluminum bar 10 is not in contact with the terminal 2 but is electrically connected to the terminal 2 via the adapter 12. The adapter 12 and the terminal 2 are copper parts, copper alloy parts, or conductive parts having copper plating on their surfaces, and therefore the material of the electrical contact surface between the adapter 12 and the terminal 2 is copper or copper alloy.

[0052] As shown in FIGS. 5-8, in the illustrated embodiment, the adapter 12 may be welded or riveted to the connection end 11 of the aluminum bar 10.

[0053] As shown in Figures 5-8, in the illustrated embodiment, the adapter 12 may be welded to the connection end 11 of the aluminum bar 10 by ultrasonic welding, brazing, or friction welding.

[0054] 5 to 8, in the illustrated embodiment, a through hole 101 corresponding to a connection hole 102 in the adapter 12 is formed in the connection end 11 of the aluminum bar 10. The power transmission component 1 is fixed to the terminal 2 via a connection member 3 passing through the connection hole 102 and the through hole 101.

[0055] 5 to 8, in the illustrated embodiment, the connection hole 102 and the through hole 101 have a first diameter in the length direction of the aluminum bar 10 and a second diameter in the width direction of the aluminum bar 10. The first diameter is larger than the second diameter, thereby allowing the connection end 11 of the aluminum bar 10 to move relative to the connection member 3 in the length direction of the aluminum bar 10.

[0056] 5 to 8, in the illustrated embodiment, the connection end 11 of the aluminum bar 10 has a top surface 11a and a bottom surface that are opposite to each other in the thickness direction of the aluminum bar 10. The bottom surface of the adapter 12 is welded to the top surface 11a of the connection end 11 of the aluminum bar 10, and the top surface 12a of the adapter 12 is used for electrical contact with the terminal 2.

[0057] 5 to 8, in the illustrated embodiment, the top surface 11a of the connection end 11 of the aluminum bar 10 and the top surface 12a and bottom surface of the adapter 12 are flat surfaces perpendicular to the thickness direction of the aluminum bar 10. The top surface 11a of the connection end 11 of the aluminum bar 10 is lower than the top surface 10a of the main body of the aluminum bar 10, and the top surface 12a of the adapter 12 is flush with the top surface 10a of the main body of the aluminum bar 10.

[0058] As shown in Figures 5 to 8, in the illustrated embodiment, the bottom surface of the connection end 11 of the aluminum bar 10 is flush with the bottom surface of the main body of the aluminum bar 10, and the peripheral surface of the adapter 12 is flush with or smoothly transitions to the peripheral surface of the connection end 11 of the aluminum bar 10.

[0059] As shown in Figures 5 to 8, in the illustrated embodiment, the width of the connection end 11 of the aluminum bar 10 is equal to the width of the main body of the aluminum bar 10, and the two widthwise faces of the connection end 11 of the aluminum bar 10 are flush with the two widthwise faces of the main body of the aluminum bar 10.

[0060] As shown in FIGS. 5-8, in the illustrated embodiment, the power transfer component 1 further includes an insulating layer 13 wrapped around the body of the aluminum bar 10 (see FIGS. 1-4).

[0061] As shown in Figures 5 to 8, in another exemplary embodiment of the present invention, an electrical connection assembly is also disclosed. The electrical connection assembly includes a power transmission component, a terminal 2, and a connection member 3. The terminal 2 has a flat rear connection end 21. The connection member 3 is used to fix an adapter 12 of the power transmission component 1 to the rear connection end 21 of the terminal 2. The adapter 12 and the terminal 2 are copper parts, copper alloy parts, or conductive parts having copper plating on the surface, and therefore the material of the electrical contact surface between the adapter 12 and the terminal 2 is copper or copper alloy.

[0062] 5 to 8, in the illustrated embodiment, a connection through-hole 201 is formed in the rear connection end 21 of the terminal 2, and the connection member 3 includes a bolt 31 and a nut 32. The bolt 31 passes through the connection hole 102 in the adapter 12 and the connection through-hole 201 in the rear connection end 21 of the terminal 2, and is screwed into the nut 32.

[0063] As shown in Figures 5 to 8, in the illustrated embodiment, terminal 2 also has a cylindrical front mating end 22, which is used for mating with a mating terminal (not shown, e.g., for mating with a mating terminal in a charging gun).

[0064] As shown in Figures 5 to 8, in another exemplary embodiment of the present invention, a charging base is also disclosed. The charging base includes a housing (not shown) and the above-mentioned electrical connection assembly. The terminal 2 of the electrical connection assembly is installed in the housing, and the aluminum bar 10 of the power transmission component 1 extends from the housing.

[0065] Third embodiment 9 to 12 show an electrical connection assembly according to a third embodiment of the present invention. Of these, FIG. 9 shows an explanatory perspective view of the electrical connection assembly according to the third embodiment of the present invention. FIG. 10 shows a longitudinal sectional view of the electrical connection assembly according to the third embodiment of the present invention. FIG. 11 shows an explanatory exploded view of the electrical connection assembly according to the third embodiment of the present invention. FIG. 12 shows an explanatory perspective view of an aluminum bar 10 and an adapter 12 according to the third embodiment of the present invention.

[0066] As shown in Figs. 9 to 12, in an exemplary embodiment of the present invention, a power transmission component 1 is disclosed. The power transmission component 1 includes an aluminum bar 10 and an adapter 12. The aluminum bar 10 has a connection end 11. The adapter 12 is connected to the connection end 11 of the aluminum bar 10, which is used to electrically connect the aluminum bar 10 to a terminal 2. The adapter 12 is formed with a connection hole 102 extending through the adapter 12 along the thickness direction of the aluminum bar 10, and therefore, the power transmission component 1 can be fixed to the terminal 2 via a connection member 3 passing through the connection hole 102. When the power transmission component 1 is fixed to the terminal 2, the adapter 12 is in direct electrical contact with the terminal 2, while the aluminum bar 10 is not in contact with the terminal 2 but is electrically connected to the terminal 2 via the adapter 12. The adapter 12 and the terminal 2 are copper parts, copper alloy parts, or conductive parts having copper plating on their surfaces, and therefore the material of the electrical contact surface between the adapter 12 and the terminal 2 is copper or copper alloy.

[0067] As shown in FIGS. 9-12, in the illustrated embodiment, the adapter 12 may be welded or riveted to the connection end 11 of the aluminum bar 10 .

[0068] As shown in Figures 9-12, in the illustrated embodiment, the adapter 12 may be welded to the connection end 11 of the aluminum bar 10 by ultrasonic welding, brazing, or friction welding.

[0069] As shown in Figures 9 to 12, in the illustrated embodiment, the adapter 12 includes a rear portion 121 and a front portion 122. The rear portion 121 of the adapter 12 is used for electrical connection to the connection end portion 11 of the aluminum bar 10. The front portion 122 of the adapter 12 is used for electrical connection to the connection end portion 21 of the terminal 2. The connection hole 102 is formed in the front portion 122 of the adapter 12, so that the front portion 122 of the adapter 12 can be fixed to the terminal 2 via the connection member 3 passing through the connection hole 102.

[0070] 9 to 12, in the illustrated embodiment, the connection hole 102 has a first diameter in the length direction of the aluminum bar 10 and a second diameter in the width direction of the aluminum bar 10. The first diameter is larger than the second diameter, thereby allowing the connection end 11 of the aluminum bar 10 to move relative to the connection member 3 in the length direction of the aluminum bar 10.

[0071] As shown in Figures 9 to 12, in the illustrated embodiment, the thickness of the front part 122 of the adapter 12 is greater than the thickness of the rear part 121 of the adapter 12, and the upper surface of the front part 122 of the adapter 12 is flush with the upper surface of the rear part 121 of the adapter 12.

[0072] As shown in Figures 9 to 12, in the illustrated embodiment, the bottom surface of the rear portion 121 of the adapter 12 is welded to the upper surface 11a of the connection end 11 of the aluminum bar 10, the rear end surface 122b of the front portion 122 of the adapter 12 is welded to the front end surface 11b of the connection end 11 of the aluminum bar 10, and the upper surface of the front portion 122 of the adapter 12 is used for electrical contact with the terminal 2.

[0073] 9 to 12, in the illustrated embodiment, the top surface 11a of the connection end 11 of the aluminum bar 10 and the top and bottom surfaces of the rear portion 121 and the front portion 122 of the adapter 12 are flat surfaces perpendicular to the thickness direction of the aluminum bar 10. The top surface 11a of the connection end 11 of the aluminum bar 10 is lower than the top surface 10a of the main body of the aluminum bar 10, and the top surface of the adapter 12 is flush with the top surface 10a of the main body of the aluminum bar 10.

[0074] As shown in Figures 9 to 12, in the illustrated embodiment, the bottom surface of the connection end 11 of the aluminum bar 10 is flush with the bottom surface of the main body of the aluminum bar 10, the two widthwise surfaces of the adapter 12 are flush with the two widthwise surfaces of the connection end 11 of the aluminum bar 10, and the bottom surface of the front portion 122 of the adapter 12 is flush with the bottom surface of the connection end 11 of the aluminum bar 10.

[0075] As shown in Figures 9 to 12, in the illustrated embodiment, the width of the connection end 11 of the aluminum bar 10 is equal to the width of the main body of the aluminum bar 10, and the two widthwise faces of the connection end 11 of the aluminum bar 10 are flush with the two widthwise faces of the main body of the aluminum bar 10.

[0076] As shown in FIGS. 9-12, in the illustrated embodiment, the power transfer component 1 further includes an insulating layer 13 wrapped around the main body of the aluminum bar 10 (see FIGS. 1-4).

[0077] As shown in Figures 9 to 12, in another exemplary embodiment of the present invention, an electrical connection assembly is also disclosed. The electrical connection assembly includes a power transmission component, a terminal 2, and a connection member 3. The terminal 2 has a flat rear connection end 21. The connection member 3 is used to fix an adapter 12 of the power transmission component 1 to the rear connection end 21 of the terminal 2. The adapter 12 and the terminal 2 are copper parts, copper alloy parts, or conductive parts having copper plating on the surface, and therefore the material of the electrical contact surface between the adapter 12 and the terminal 2 is copper or copper alloy.

[0078] 9 to 12, in the illustrated embodiment, a connection through-hole 201 is formed in the rear connection end 21 of the terminal 2, and the connection member 3 includes a bolt 31 and a nut 32. The bolt 31 passes through the connection hole 102 in the adapter 12 and the connection through-hole 201 in the rear connection end 21 of the terminal 2, and is screwed into the nut 32.

[0079] As shown in Figures 9 to 12, in the illustrated embodiment, the terminal 2 also has a cylindrical front mating end 22, which is used for mating with a mating terminal (not shown, e.g., for mating with a mating terminal of a charging gun).

[0080] As shown in Figures 9 to 12, in another exemplary embodiment of the present invention, a charging base is also disclosed. The charging base includes a housing (not shown) and the above-mentioned electrical connection assembly. The terminal 2 of the electrical connection assembly is installed in the housing, and the aluminum bar 10 of the power transmission component 1 extends from the housing.

[0081] It should be understood by those skilled in the art that the above embodiments are intended to be illustrative rather than limiting. For example, numerous modifications may be made to the above embodiments by those skilled in the art, and various features described in the various embodiments may be freely combined with each other as long as they are not inconsistent in structure or principle.

[0082] Although several exemplary embodiments have been shown and described, it will be understood by those skilled in the art that various changes or modifications may be made in these embodiments without departing from the principles and spirit of the present disclosure, the scope of which is defined in the following claims and their equivalents.

[0083] As used herein, elements described in the singular and preceded by the word "a" or "an" should be understood as not excluding a plurality of such elements or steps, unless expressly stated to the contrary. Furthermore, references to "one embodiment" of the invention are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. In addition, unless expressly stated otherwise, embodiments "comprising" or "having" an element or elements having a particular property may include additional such elements that do not have that property.

Claims

1. An aluminum bar (10) having a connecting end (11); an adapter (12) connected to the connection end (11) of the aluminum bar (10) for electrically connecting the aluminum bar (10) to a terminal (2); A power transmission component comprising: The adapter (12) is formed with a connection hole (102) extending through the adapter (12) along the thickness direction of the aluminum bar (10), so that the power transmission component (1) can be fixed to the terminal (2) via a connection member (3) passing through the connection hole (102); When the power transmission component (1) is fixed to the terminal (2), the adapter (12) is in direct electrical contact with the terminal (2), and the aluminum bar (10) is not in contact with the terminal (2) and is electrically connected to the terminal (2) via the adapter (12); The adapter (12) and the terminal (2) are copper parts, copper alloy parts, or conductive parts having copper plating on their surfaces, and therefore the material of the electrical contact surface between the adapter (12) and the terminal (2) that contact each other is copper or a copper alloy. Power transmission components.

2. The adapter (12) is welded or riveted to the connection end (11) of the aluminum bar (10). The power transfer component according to claim 1 .

3. The adapter (12) is welded to the connecting end (11) of the aluminum bar (10) by ultrasonic welding, brazing or friction welding. The power transfer component according to claim 1 .

4. A through hole (101) corresponding to the connection hole (102) of the adapter (12) is formed in the connection end (11) of the aluminum bar (10); The power transmission component (1) is fixed to the terminal (2) by the connection member (3) passing through the connection hole (102) and the through hole (101). The power transfer component according to claim 1 .

5. The connection hole (102) and the through hole (101) have a first diameter in the length direction of the aluminum bar (10) and a second diameter in the width direction of the aluminum bar (10); the first diameter is larger than the second diameter, thereby allowing the connection end (11) of the aluminum bar (10) to move relative to the connection member (3) in the longitudinal direction of the aluminum bar (10); The power transfer component according to claim 4.

6. the connection end (11) of the aluminum bar (10) has a top surface (11a) and a bottom surface that are opposite to each other in the thickness direction of the aluminum bar (10), the bottom surface of the adapter (12) is welded to the top surface (11a) of the connection end (11) of the aluminum bar (10), and the top surface (12a) of the adapter (12) is used for electrical contact with the terminal (2); The power transfer component according to claim 4.

7. the top surface (11a) of the connection end (11) of the aluminum bar (10), and the top surface (12a) and the bottom surface of the adapter (12) are flat surfaces perpendicular to the thickness direction of the aluminum bar (10); The upper surface (11a) of the connection end (11) of the aluminum bar (10) is lower than the upper surface (10a) of the main body of the aluminum bar (10), and the upper surface (12a) of the adapter (12) is flush with the upper surface (10a) of the main body of the aluminum bar (10). The power transfer component according to claim 6.

8. the bottom surface of the connecting end (11) of the aluminum bar (10) is flush with the bottom surface of the body of the aluminum bar (10), and the peripheral surface of the adapter (12) is flush with or smoothly transitions to the peripheral surface of the connecting end (11) of the aluminum bar (10); The power transfer component according to claim 7.

9. The width of the connection end (11) of the aluminum bar (10) is smaller than the width of the main body of the aluminum bar (10), and the connection end (11) of the aluminum bar (10) is biased toward one side in the width direction of the aluminum bar (10). The power transfer component according to claim 7.

10. The width of the connection end (11) of the aluminum bar (10) is equal to the width of the main body of the aluminum bar (10), and the two faces in the width direction of the connection end (11) of the aluminum bar (10) are flush with the two faces in the width direction of the main body of the aluminum bar (10). The power transfer component according to claim 7.

11. The adapter (12) is a rear part (121) used for electrical connection to the connection end (11) of the aluminum bar (10); a front portion (122) used for electrically connecting to the connection end (21) of the terminal (2); Equipped with The connection hole (102) is formed in the front part (122) of the adapter (12), so that the front part (122) of the adapter (12) can be fixed to the terminal (2) via the connection member (3) passing through the connection hole (102). The power transfer component according to claim 1 .

12. The connection hole (102) has a first diameter in the length direction of the aluminum bar (10) and a second diameter in the width direction of the aluminum bar (10), the first diameter is larger than the second diameter, thereby allowing the connection end (11) of the aluminum bar (10) to move relative to the connection member (3) in the longitudinal direction of the aluminum bar (10); The power transfer component according to claim 11.

13. a thickness of the front portion (122) of the adapter (12) is greater than a thickness of the rear portion (121) of the adapter (12), and an upper surface of the front portion (122) of the adapter (12) is flush with an upper surface of the rear portion (121) of the adapter (12); The power transfer component according to claim 11.

14. a bottom surface of the rear portion (121) of the adapter (12) is welded to an upper surface (11a) of the connection end portion (11) of the aluminum bar (10), a rear end surface (122b) of the front end portion (122) of the adapter (12) is welded to a front end surface (11b) of the connection end portion (11) of the aluminum bar (10), and the upper surface of the front end portion (122) of the adapter (12) is used for electrical contact with the terminal (2); The power transfer component of claim 13.

15. the top surface (11a) of the connection end (11) of the aluminum bar (10), and the top and bottom surfaces of the rear portion (121) and the front portion (122) of the adapter (12) are flat surfaces perpendicular to the thickness direction of the aluminum bar (10); The upper surface (11a) of the connection end (11) of the aluminum bar (10) is lower than the upper surface (10a) of the main body of the aluminum bar (10), and the upper surface of the adapter (12) is flush with the upper surface (10a) of the main body of the aluminum bar (10). The power transfer component of claim 14.

16. The bottom surface of the connection end (11) of the aluminum bar (10) is flush with the bottom surface of the main body of the aluminum bar (10), the two widthwise surfaces of the adapter (12) are flush with the two widthwise surfaces of the connection end (11) of the aluminum bar (10), and the bottom surface of the front part (122) of the adapter (12) is flush with the bottom surface of the connection end (11) of the aluminum bar (10). The power transfer component of claim 14.

17. The width of the connection end (11) of the aluminum bar (10) is equal to the width of the main body of the aluminum bar (10), and the two faces in the width direction of the connection end (11) of the aluminum bar (10) are flush with the two faces in the width direction of the main body of the aluminum bar (10). The power transfer component of claim 14.

18. An insulating layer (13) wrapped around the body of the aluminum bar (10) The power transfer component of claim 1 , further comprising:

19. The power transfer component (1) according to any one of claims 1 to 18, A terminal (2) having a flat rear connection end (21); a connecting member (3) used to fix the adapter (12) of the power transmission component (1) to the rear connecting end (21) of the terminal (2); 1. An electrical connection assembly comprising: The adapter (12) and the terminal (2) are copper parts, copper alloy parts, or conductive parts having copper plating on their surfaces, and therefore the material of the electrical contact surface between the adapter (12) and the terminal (2) that contact each other is copper or a copper alloy. Electrical connection assembly.

20. A connection through hole (201) is formed in the rear connection end (21) of the terminal (2), and the connection member (3) includes a bolt (31) and a nut (32); The bolt (31) passes through the connection hole (102) in the adapter (12) and the connection through hole (201) in the rear connection end (21) of the terminal (2) and is screwed into the nut (32).

20. The electrical connection assembly of claim 19.

21. The terminal (2) also has a cylindrical front mating end (22), and the front mating end (22) of the terminal (2) is used for mating with a mating terminal.

20. The electrical connection assembly of claim 19.

22. Housing and The electrical connection assembly according to any one of claims 19 to 21. A charging base comprising: The terminals (2) of the electrical connection assembly are mounted in the housing, and the aluminum bar (10) of the power transmission component (1) extends from the housing. Charging base.

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