Power transmission piece, electric connection assembly and charging seat

Abstract

The invention discloses a power transmission piece, an electric connection assembly and a charging seat. The power transmission member comprises: an aluminum bar having a connection end; and the adapter is connected to the connecting end of the aluminum bar and is used for electrically connecting the aluminum bar to the terminal. A connecting hole is formed in the adapter, and the connecting hole penetrates through the adapter in the thickness direction of the aluminum bar, so that the power transmission piece can be fastened to the terminal through the connecting piece penetrating through the connecting hole. When the power transmission piece is fastened on the terminal, the adapter piece is in direct electric contact with the terminal, and the aluminum bar is not in contact with the terminal and is electrically connected to the terminal through the adapter piece. The adapter and the terminal are copper parts, copper alloy parts or conductive parts with copper-plated surfaces, so that the electrical contact surfaces of the adapter and the terminal are made of copper or copper alloy. Therefore, the problem of electrochemical corrosion can be effectively avoided, the service life of the product is prolonged, and the electrical connection performance of the product is improved.

Description

Technical Field

[0001] The invention relates to a power transmission component, including an electrical connection component of the power transmission component and a charging seat including the electrical connection component. Background Art

[0002] In the prior art, the charging seat on the new energy vehicle usually includes a terminal and a wire electrically connected to the terminal. At present, the charging current requirement of the whole vehicle has increased to 600A, and will be increased to 1000A in the future. At present, conventional wires cannot meet the current carrying requirements of the whole vehicle. In order to improve the current carrying capacity of the wire, in the prior art, aluminum bars are usually used instead of traditional wires. One end of the aluminum bar is fastened to the terminal by bolts. However, in the prior art, the terminal is usually a copper terminal, which will cause the electrical contact surface of the aluminum bar and the terminal to contact each other to be prone to electrochemical corrosion, reducing the service life and electrical connection performance of the product. Summary of the invention

[0003] The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0004] According to one aspect of the present invention, there is provided a power transmission component. The power transmission component comprises: an aluminum bar having a connection end; and a transition piece connected to the connection end of the aluminum bar for electrically connecting the aluminum bar to a terminal. The transition piece is formed with a connection hole, and the connection hole penetrates the transition piece along the thickness direction of the aluminum bar, so that the power transmission component can be fastened to the terminal by the connection piece passing through the connection hole. When the power transmission component is fastened to the terminal, the transition piece is in direct electrical contact with the terminal, and the aluminum bar is not in contact with the terminal and is electrically connected to the terminal via the transition piece. The transition piece and the terminal are copper parts, copper alloy parts or conductive parts with copper plating on the surface, so that the material of the electrical contact surfaces of the transition piece and the terminal that are in contact with each other is copper or copper alloy.

[0005] According to an exemplary embodiment of the present invention, the adapter is welded or riveted to the connecting end of the aluminum bar.

[0006] According to another exemplary embodiment of the present invention, the adapter is welded to the connecting end of the aluminum bar by ultrasonic welding, brazing or friction welding.

[0007] According to another exemplary embodiment of the present invention, a through hole corresponding to the connection hole on the adapter is formed on the connection end of the aluminum bar; and the power transmission member is fastened to the terminal by a connector passing through the connection hole and the through hole.

[0008] According to another exemplary embodiment of the present invention, the connecting hole and the through hole have a first aperture in the length direction of the aluminum bar and a second aperture in the width direction of the aluminum bar, and the first aperture is larger than the second aperture, so that the connecting end of the aluminum bar can move relative to the connecting member in the length direction of the aluminum bar.

[0009] According to another exemplary embodiment of the present invention, the connecting end of the aluminum bar has a top surface and a bottom surface opposite to each other in the thickness direction of the aluminum bar, the bottom surface of the adapter is welded to the top surface of the connecting end of the aluminum bar, and the top surface of the adapter is used to make electrical contact with the terminal.

[0010] According to another exemplary embodiment of the present invention, the top surface of the connecting 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; and the top surface of the connecting 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.

[0011] According to another exemplary embodiment of the present invention, the bottom surface of the connecting end of the aluminum bar is flush with the bottom surface of the main body of the aluminum bar, and the peripheral surface of the adapter is flush with or smoothly transitions to the peripheral surface of the connecting end of the aluminum bar.

[0012] According to another exemplary embodiment of the present invention, the width of the connecting end of the aluminum bar is smaller than the width of the main body of the aluminum bar, and the connecting end of the aluminum bar is biased to one side in the width direction of the aluminum bar.

[0013] According to another exemplary embodiment of the present invention, the width of the connecting end of the aluminum bar is equal to the width of the main body of the aluminum bar, and both sides of the connecting end of the aluminum bar in the width direction are respectively flush with both sides of the main body of the aluminum bar in the width direction.

[0014] According to another exemplary embodiment of the present invention, the adapter includes: a rear portion for electrically connecting to the connection end of the aluminum bar; and a front portion for electrically connecting to the connection end of the terminal, and the connection hole is formed on the front portion of the adapter so that the front portion of the adapter can be fastened to the terminal by a connector passing through the connection hole.

[0015] According to another exemplary embodiment of the present invention, the connecting hole has a first aperture in the length direction of the aluminum bar and a second aperture in the width direction of the aluminum bar, and the first aperture is larger than the second aperture, so that the connecting end of the aluminum bar can move relative to the connecting member in the length direction of the aluminum bar.

[0016] According to another exemplary embodiment of the present invention, the thickness of the front portion of the adapter is greater than that of the rear portion of the adapter, and the top surface of the front portion of the adapter is flush with the top surface of the rear portion of the adapter.

[0017] According to another exemplary embodiment of the present invention, the bottom surface of the rear portion of the adapter is welded to the top surface of the connecting end of the aluminum bar, the rear end surface of the front portion 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 portion of the adapter is used for electrical contact with the terminal.

[0018] According to another exemplary embodiment of the present invention, the top surface of the connecting end of the aluminum bar, the top surfaces of the rear and front parts of the adapter and the bottom surfaces are flat surfaces perpendicular to the thickness direction of the aluminum bar; and the top surface of the connecting 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.

[0019] According to another exemplary embodiment of the present invention, the bottom surface of the connecting end of the aluminum bar is flush with the bottom surface of the main body of the aluminum bar, the two sides in the width direction of the adapter are flush with the two sides in the width direction of the connecting end of the aluminum bar, and the bottom surface of the front portion of the adapter is flush with the bottom surface of the connecting end of the aluminum bar.

[0020] According to another exemplary embodiment of the present invention, the width of the connecting end of the aluminum bar is equal to the width of the main body of the aluminum bar, and both sides of the connecting end of the aluminum bar in the width direction are respectively flush with both sides of the main body of the aluminum bar in the width direction.

[0021] According to another exemplary embodiment of the present invention, the power transmission member further includes: an insulating layer wrapped on the main body of the aluminum bar.

[0022] According to another aspect of the present invention, an electrical connection assembly is provided, which comprises: a power transmission member; a terminal having a flat rear connection end; and a connection member for fastening a transition member of the power transmission member to the rear connection end of the terminal, wherein the transition member and the terminal are copper members, copper alloy members, or conductive members with copper plating on the surface, so that the material of the electrical contact surfaces of the transition member and the terminal that contact each other is copper or copper alloy.

[0023] According to an exemplary embodiment of the present invention, a connecting through hole is formed on the rear connecting end of the terminal, and the connecting member includes a bolt and a nut; the bolt passes through the connecting hole on the adapter and the connecting through hole on the rear connecting end of the terminal and is threadedly connected to the nut.

[0024] According to another exemplary embodiment of the present invention, the terminal further has a cylindrical front mating end, and the front mating end of the terminal is used for mating and connecting with a mating terminal.

[0025] According to another aspect of the present invention, a charging stand is provided, comprising: a housing; and the aforementioned electrical connection assembly, wherein a terminal of the electrical connection assembly is installed in the housing, and an aluminum bar of the power transmission member protrudes from the housing.

[0026] In the aforementioned exemplary embodiments 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. Therefore, the electrochemical corrosion problem can be effectively avoided, the service life of the product is extended, and the electrical connection performance of the product is improved.

[0027] Other objects and advantages of the present invention will become apparent from the following description of the present invention with reference to the accompanying drawings, which will help to provide a comprehensive understanding of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A perspective schematic diagram showing an electrical connection assembly according to a first embodiment of the present invention;

[0029] Figure 2 A longitudinal sectional view showing an electrical connection assembly according to a first embodiment of the present invention;

[0030] Figure 3 An exploded schematic diagram showing an electrical connection assembly according to a first embodiment of the present invention;

[0031] Figure 4 A perspective schematic diagram showing an aluminum bar and a transition piece according to a first embodiment of the present invention;

[0032] Figure 5 A perspective schematic diagram showing an electrical connection assembly according to a second embodiment of the present invention;

[0033] Figure 6 A longitudinal sectional view showing an electrical connection assembly according to a second embodiment of the present invention;

[0034] Figure 7 An exploded schematic diagram showing an electrical connection assembly according to a second embodiment of the present invention;

[0035] Figure 8 A perspective schematic diagram showing an aluminum bar and a transition piece according to a second embodiment of the present invention;

[0036] Fig. 9 A perspective schematic diagram showing an electrical connection assembly according to a third embodiment of the present invention;

[0037] Fig.10A longitudinal sectional view showing an electrical connection assembly according to a third embodiment of the present invention;

[0038] Fig.11 An exploded schematic diagram showing an electrical connection assembly according to a third embodiment of the present invention;

[0039] Fig.12 A schematic perspective view showing an aluminum bar and a transition piece according to a third embodiment of the present invention. DETAILED DESCRIPTION

[0040] The technical solution of the present invention is further specifically described below by examples and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation of the present invention.

[0041] In addition, in the detailed description below, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments may be implemented without these specific details. In other cases, known structures and devices are embodied in a schematic manner to simplify the accompanying drawings.

[0042] According to an overall technical concept of the present invention, a power transmission component is provided. The power transmission component includes: an aluminum bar having a connection end; and a transition piece connected to the connection end of the aluminum bar for electrically connecting the aluminum bar to a terminal. The transition piece is formed with a connection hole, and the connection hole passes through the transition piece along the thickness direction of the aluminum bar, so that the power transmission component can be fastened to the terminal through the connection piece passing through the connection hole. When the power transmission component is fastened to the terminal, the transition piece is in direct electrical contact with the terminal, and the aluminum bar is not in contact with the terminal and is electrically connected to the terminal via the transition piece. The transition piece and the terminal are copper parts, copper alloy parts or conductive parts with copper plating on the surface, so that the material of the electrical contact surfaces of the transition piece and the terminal that contact each other is copper or copper alloy.

[0043] According to another general technical concept of the present invention, an electrical connection assembly is provided. The electrical connection assembly includes: a power transmission member; a terminal having a flat rear connection end; and a connector for fastening a transition member of the power transmission member to the rear connection end of the terminal, wherein the transition member and the terminal are copper members, copper alloy members, or conductive members with copper plating on the surface, so that the material of the electrical contact surfaces of the transition member and the terminal that contact each other is copper or copper alloy.

[0044] According to another general technical concept of the present invention, a charging stand is provided, which includes: a housing; and the aforementioned electrical connection assembly, wherein the terminal of the electrical connection assembly is installed in the housing, and the aluminum bar of the power transmission member protrudes from the housing.

[0045] First embodiment

[0046] Figures 1 to 4 The electrical connection assembly according to the first embodiment of the present invention is shown. Figure 1 A perspective schematic diagram showing an electrical connection assembly according to a first embodiment of the present invention; Figure 2 A longitudinal sectional view showing an electrical connection assembly according to a first embodiment of the present invention; Figure 3 An exploded schematic diagram showing an electrical connection assembly according to a first embodiment of the present invention; Figure 4 A perspective schematic diagram showing an aluminum bar 10 and a transition piece 12 according to a first embodiment of the present invention.

[0047] like Figures 1 to 4 As shown, in an exemplary embodiment of the present invention, a power transmission member 1 is disclosed. The power transmission member 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, and is used to electrically connect the aluminum bar 10 to the terminal 2. The adapter 12 is formed with a connection hole 102, and the connection hole 102 penetrates the adapter 12 along the thickness direction of the aluminum bar 10, so that the power transmission member 1 can be fastened to the terminal 2 through the connection member 3 passing through the connection hole 102. When the power transmission member 1 is fastened 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 with copper plating on the surface, so that the material of the electrical contact surface of the adapter 12 and the terminal 2 that contacts each other is copper or copper alloy.

[0048] like Figures 1 to 4 As shown, in the illustrated embodiment, the adapter 12 can be welded or riveted to the connecting end 11 of the aluminum bar 10 .

[0049] like Figures 1 to 4 As shown, in the illustrated embodiment, the adapter 12 can be welded to the connection end 11 of the aluminum bar 10 by ultrasonic welding, brazing or friction welding.

[0050] like Figures 1 to 4 As shown, in the illustrated embodiment, a through hole 101 corresponding to a connection hole 102 on the adapter 12 is formed on the connection end 11 of the aluminum bar 10. The power transmission member 1 is fastened to the terminal 2 by the connection member 3 passing through the connection hole 102 and the through hole 101.

[0051] like Figures 1 to 4 As shown, in the illustrated embodiment, the connection hole 102 and the through hole 101 have a first aperture in the length direction of the aluminum bar 10 and a second aperture in the width direction of the aluminum bar 10. The first aperture is larger than the second aperture, so that the connection end 11 of the aluminum bar 10 can move relative to the connector 3 in the length direction of the aluminum bar 10.

[0052] like Figures 1 to 4 As shown, in the illustrated embodiment, the connecting end 11 of the aluminum bar 10 has a top surface 11a and a bottom surface 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 connecting 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.

[0053] like Figures 1 to 4 As shown, in the illustrated embodiment, the top surface 11a of the connection end 11 of the aluminum bar 10, 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 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.

[0054] like Figures 1 to 4 As shown, in the illustrated embodiment, the bottom surface of the connecting 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 transitioned to the peripheral surface of the connecting end 11 of the aluminum bar 10 .

[0055] like Figures 1 to 4 As shown, in the illustrated embodiment, the width of the connecting end 11 of the aluminum bar 10 is smaller than the width of the main body of the aluminum bar 10 , and the connecting end 11 of the aluminum bar 10 is biased to one side in the width direction of the aluminum bar 10 .

[0056] like Figures 1 to 4 As shown, in the illustrated embodiment, the power transmission element 1 further includes an insulating layer 13 , and the insulating layer 13 is wrapped around the main body of the aluminum bar 10 .

[0057] like Figures 1 to 4 As shown, in another exemplary embodiment of the present invention, an electrical connection assembly is also disclosed. The electrical connection assembly includes: a power transmission member, 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 fasten the adapter 12 of the power transmission member 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 with copper plating on the surface, so that the material of the electrical contact surface of the adapter 12 and the terminal 2 that contacts each other is copper or copper alloy.

[0058] like Figures 1 to 4As shown, in the illustrated embodiment, a connecting through hole 201 is formed on the rear connecting end 21 of the terminal 2, and the connecting member 3 includes a bolt 31 and a nut 32. The bolt 31 passes through the connecting hole 102 on the adapter 12 and the connecting through hole 201 on the rear connecting end 21 of the terminal 2 and is threadedly connected with the nut 32.

[0059] like Figures 1 to 4 As shown, in the illustrated embodiment, 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 and connecting with a mating terminal (not shown, for example, for mating with a mating terminal in a charging gun).

[0060] like Figures 1 to 4 As shown, in another exemplary embodiment of the present invention, a charging stand is also disclosed. The charging stand comprises: a housing (not shown) and the aforementioned 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 member 1 extends out of the housing.

[0061] Second embodiment

[0062] Figures 5 to 8 The electrical connection assembly according to the second embodiment of the present invention is shown. Figure 5 A perspective schematic diagram showing an electrical connection assembly according to a second embodiment of the present invention; Figure 6 A longitudinal sectional view showing an electrical connection assembly according to a second embodiment of the present invention; Figure 7 An exploded schematic diagram showing an electrical connection assembly according to a second embodiment of the present invention; Figure 8 A perspective schematic diagram showing an aluminum bar 10 and a transition piece 12 according to a second embodiment of the present invention is shown.

[0063] like Figures 5 to 8 As shown, in an exemplary embodiment of the present invention, a power transmission member 1 is disclosed. The power transmission member 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, and is used to electrically connect the aluminum bar 10 to the terminal 2. The adapter 12 is formed with a connection hole 102, and the connection hole 102 penetrates the adapter 12 along the thickness direction of the aluminum bar 10, so that the power transmission member 1 can be fastened to the terminal 2 through the connection member 3 passing through the connection hole 102. When the power transmission member 1 is fastened 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 with copper plating on the surface, so that the material of the electrical contact surface of the adapter 12 and the terminal 2 that contacts each other is copper or copper alloy.

[0064] like Figures 5 to 8As shown, in the illustrated embodiment, the adapter 12 can be welded or riveted to the connecting end 11 of the aluminum bar 10 .

[0065] like Figures 5 to 8 As shown, in the illustrated embodiment, the adapter 12 can be welded to the connection end 11 of the aluminum bar 10 by ultrasonic welding, brazing or friction welding.

[0066] like Figures 5 to 8 As shown, in the illustrated embodiment, a through hole 101 corresponding to a connection hole 102 on the adapter 12 is formed on the connection end 11 of the aluminum bar 10. The power transmission member 1 is fastened to the terminal 2 by the connection member 3 passing through the connection hole 102 and the through hole 101.

[0067] like Figures 5 to 8 As shown, in the illustrated embodiment, the connection hole 102 and the through hole 101 have a first aperture in the length direction of the aluminum bar 10 and a second aperture in the width direction of the aluminum bar 10. The first aperture is larger than the second aperture, so that the connection end 11 of the aluminum bar 10 can move relative to the connector 3 in the length direction of the aluminum bar 10.

[0068] like Figures 5 to 8 As shown, in the illustrated embodiment, the connecting end 11 of the aluminum bar 10 has a top surface 11a and a bottom surface 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 connecting 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.

[0069] like Figures 5 to 8 As shown, in the illustrated embodiment, the top surface 11a of the connection end 11 of the aluminum bar 10, 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 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.

[0070] like Figures 5 to 8 As shown, in the illustrated embodiment, the bottom surface of the connecting 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 transitioned to the peripheral surface of the connecting end 11 of the aluminum bar 10 .

[0071] like Figures 5 to 8 As shown, in the illustrated embodiment, the width of the connecting end 11 of the aluminum bar 10 is equal to the width of the main body of the aluminum bar 10, and both sides of the connecting end 11 of the aluminum bar 10 in the width direction are flush with both sides of the main body of the aluminum bar 10 in the width direction.

[0072] like Figures 5 to 8As shown, in the illustrated embodiment, the power transmission element 1 further includes an insulating layer 13 (see Figure 1-4 ), the insulating layer 13 is wrapped around the main body of the aluminum bus 10.

[0073] like Figures 5 to 8 As shown, in another exemplary embodiment of the present invention, an electrical connection assembly is also disclosed. The electrical connection assembly includes: a power transmission member, 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 fasten the adapter 12 of the power transmission member 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 with copper plating on the surface, so that the material of the electrical contact surface of the adapter 12 and the terminal 2 that contacts each other is copper or copper alloy.

[0074] like Figures 5 to 8 As shown, in the illustrated embodiment, a connecting through hole 201 is formed on the rear connecting end 21 of the terminal 2, and the connecting member 3 includes a bolt 31 and a nut 32. The bolt 31 passes through the connecting hole 102 on the adapter 12 and the connecting through hole 201 on the rear connecting end 21 of the terminal 2 and is threadedly connected with the nut 32.

[0075] like Figures 5 to 8 As shown, in the illustrated embodiment, 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 and connecting with a mating terminal (not shown, for example, for mating with a mating terminal in a charging gun).

[0076] like Figures 5 to 8 As shown, in another exemplary embodiment of the present invention, a charging stand is also disclosed. The charging stand comprises: a housing (not shown) and the aforementioned 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 member 1 extends out of the housing.

[0077] Third embodiment

[0078] Figures 9 to 12 The electrical connection assembly according to the third embodiment of the present invention is shown. Fig. 9 A perspective schematic diagram showing an electrical connection assembly according to a third embodiment of the present invention; Fig.10 A longitudinal sectional view showing an electrical connection assembly according to a third embodiment of the present invention; Fig.11 An exploded schematic diagram showing an electrical connection assembly according to a third embodiment of the present invention; Fig.12 A perspective schematic diagram showing an aluminum bar 10 and a transition piece 12 according to a third embodiment of the present invention is shown.

[0079] like Figures 9 to 12As shown, in an exemplary embodiment of the present invention, a power transmission member 1 is disclosed. The power transmission member 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, and is used to electrically connect the aluminum bar 10 to the terminal 2. The adapter 12 is formed with a connection hole 102, and the connection hole 102 penetrates the adapter 12 along the thickness direction of the aluminum bar 10, so that the power transmission member 1 can be fastened to the terminal 2 through the connection member 3 passing through the connection hole 102. When the power transmission member 1 is fastened 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 with copper plating on the surface, so that the material of the electrical contact surface of the adapter 12 and the terminal 2 that contacts each other is copper or copper alloy.

[0080] like Figures 9 to 12 As shown, in the illustrated embodiment, the adapter 12 can be welded or riveted to the connecting end 11 of the aluminum bar 10 .

[0081] like Figures 9 to 12 As shown, in the illustrated embodiment, the adapter 12 can be welded to the connection end 11 of the aluminum bar 10 by ultrasonic welding, brazing or friction welding.

[0082] like Figures 9 to 12 As shown, 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 to electrically connect to the connection end 11 of the aluminum bar 10. The front portion 122 of the adapter 12 is used to electrically connect to the connection end 11 of the terminal 2. The connection hole 102 is formed on the front portion 122 of the adapter 12, so that the front portion 122 of the adapter 12 can be fastened to the terminal 3 by the connection member 3 passing through the connection hole 102.

[0083] like Figures 9 to 12 As shown, in the illustrated embodiment, the connecting hole 102 has a first aperture in the length direction of the aluminum bar 10 and a second aperture in the width direction of the aluminum bar 10, and the first aperture is larger than the second aperture, so that the connecting end 11 of the aluminum bar 10 can move in the length direction of the aluminum bar 10 relative to the connecting member 3.

[0084] like Figures 9 to 12 As shown, in the illustrated embodiment, the thickness of the front portion 122 of the adapter 12 is greater than that of the rear portion 121 of the adapter 12 , and the top surface of the front portion 122 of the adapter 12 is flush with the top surface of the rear portion 121 of the adapter 12 .

[0085] like Figures 9 to 12As shown, in the illustrated embodiment, the bottom surface of the rear portion 121 of the adapter 12 is welded to the top surface 11a of the connecting 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 connecting end 11 of the aluminum bar 10, and the top surface of the front portion 122 of the adapter 12 is used for electrical contact with the terminal 2.

[0086] like Figures 9 to 12 As shown, 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.

[0087] like Figures 9 to 12 As shown, in the illustrated embodiment, the bottom surface of the connecting end 11 of the aluminum bar 10 is flush with the bottom surface of the main body of the aluminum bar 10, the two sides in the width direction of the adapter 12 are flush with the two sides in the width direction of the connecting 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 connecting end 11 of the aluminum bar 10.

[0088] like Figures 9 to 12 As shown, in the illustrated embodiment, the width of the connecting end 11 of the aluminum bar 10 is equal to the width of the main body of the aluminum bar 10, and both sides of the connecting end 11 of the aluminum bar 10 in the width direction are flush with both sides of the main body of the aluminum bar 10 in the width direction.

[0089] like Figures 9 to 12 As shown, in the illustrated embodiment, the power transmission element 1 further includes an insulating layer 13 (see Figure 1-4 ), the insulating layer 13 is wrapped around the main body of the aluminum bus 10.

[0090] like Figures 9 to 12 As shown, in another exemplary embodiment of the present invention, an electrical connection assembly is also disclosed. The electrical connection assembly includes: a power transmission member, 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 fasten the adapter 12 of the power transmission member 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 with copper plating on the surface, so that the material of the electrical contact surface of the adapter 12 and the terminal 2 that contacts each other is copper or copper alloy.

[0091] like Figures 9 to 12 As shown, in the illustrated embodiment, a connecting through hole 201 is formed on the rear connecting end 21 of the terminal 2, and the connecting member 3 includes a bolt 31 and a nut 32. The bolt 31 passes through the connecting hole 102 on the adapter 12 and the connecting through hole 201 on the rear connecting end 21 of the terminal 2 and is threadedly connected with the nut 32.

[0092] like Figures 9 to 12 As shown, in the illustrated embodiment, 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 and connecting with a mating terminal (not shown, for example, for mating with a mating terminal in a charging gun).

[0093] like Figures 9 to 12 As shown, in another exemplary embodiment of the present invention, a charging stand is also disclosed. The charging stand comprises: a housing (not shown) and the aforementioned 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 member 1 extends out of the housing.

[0094] Those skilled in the art will appreciate that the embodiments described above are exemplary and may be improved upon by those skilled in the art. The structures described in the various embodiments may be freely combined without causing any conflicts in structure or principle, and these changes should fall within the scope of protection of the present invention.

[0095] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to exemplify the preferred implementations of the present invention and should not be construed as limiting the present invention.

[0096] Although some embodiments of the general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined by the claims and their equivalents.

[0097] It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. In addition, any element reference signs in the claims shall not be construed as limiting the scope of the present invention.

Claims

1. A power transmission component, characterized in that: include: An aluminum bar (10) having a connection end (11); and A transition piece (12) is connected to the connection end (11) of the aluminum bar (10) and is used to electrically connect the aluminum bar (10) to the terminal (2). The adapter (12) is formed with a connection hole (102), and the connection hole (102) penetrates the adapter (12) along the thickness direction of the aluminum bar (10), so that the power transmission member (1) can be fastened to the terminal (2) through the connection member (3) passing through the connection hole (102). When the power transmission member (1) is fastened 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 with copper plating on the surface, so that the material of the electrical contact surfaces of the adapter (12) and the terminal (2) that contact each other is copper or copper alloy.

2. The power transmission element according to claim 1, characterized in that: The adapter (12) is welded or riveted onto the connecting end (11) of the aluminum bar (10).

3. The power transmission element according to claim 1, characterized in that: The adapter (12) is welded to the connection end (11) of the aluminum bar (10) by ultrasonic welding, brazing or friction welding.

4. The power transmission element according to claim 1, characterized in that: A through hole (101) corresponding to the connection hole (102) on the adapter (12) is formed on the connection end (11) of the aluminum bar (10); and The power transmission member (1) is fastened to the terminal (2) via a connection member (3) passing through the connection hole (102) and the through hole (101).

5. The power transmission element according to claim 4, characterized in that: The connecting hole (102) and the through hole (101) have a first aperture in the length direction of the aluminum bar (10) and a second aperture in the width direction of the aluminum bar (10), The first aperture is larger than the second aperture, so that the connection end (11) of the aluminum bar (10) can move relative to the connection member (3) in the length direction of the aluminum bar (10).

6. The power transmission element according to claim 4, characterized in that: The connecting end (11) of the aluminum bar (10) has a top surface (11a) and a bottom surface which 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 connecting 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).

7. The power transmission element according to claim 6, characterized in that: The top surface (11a) of the connection end (11) of the aluminum bar (10), 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); and 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).

8. The power transmission element according to claim 7, characterized in that: The bottom surface of the connecting 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 connecting end (11) of the aluminum bar (10).

9. The power transmission element according to claim 7, characterized in that: 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 to one side in the width direction of the aluminum bar (10).

10. The power transmission element according to claim 7, characterized in that: The width of the connecting end (11) of the aluminum bar (10) is equal to the width of the main body of the aluminum bar (10), and both sides of the connecting end (11) of the aluminum bar (10) in the width direction are respectively flush with both sides of the main body of the aluminum bar (10) in the width direction.

11. The power transmission element according to claim 1, characterized in that: The adapter (12) comprises: a rear portion (121) for electrically connecting to the connection end (11) of the aluminum bar (10); and The front portion (122) is used for electrically connecting to the connection end (11) of the terminal (2), The connection hole (102) is formed on the front portion (122) of the adapter (12), so that the front portion (122) of the adapter (12) can be fastened to the terminal (3) by the connection member (3) passing through the connection hole (102).

12. The power transmission element according to claim 11, characterized in that: The connection hole (102) has a first aperture in the length direction of the aluminum bar (10) and a second aperture in the width direction of the aluminum bar (10). The first aperture is larger than the second aperture, so that the connection end (11) of the aluminum bar (10) can move relative to the connection member (3) in the length direction of the aluminum bar (10).

13. The power transmission element according to claim 11, characterized in that: The thickness of the front portion (122) of the adapter (12) is greater than that of the rear portion (121) of the adapter (12), and the top surface of the front portion (122) of the adapter (12) is flush with the top surface of the rear portion (121) of the adapter (12).

14. The power transmission element according to claim 13, characterized in that: The bottom surface of the rear portion (121) of the adapter (12) is welded to the top 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 top surface of the front portion (122) of the adapter (12) is used to make electrical contact with the terminal (2).

15. The power transmission element according to claim 14, characterized in that: 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); and 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).

16. The power transmission element according to claim 14, characterized in that: The bottom surface of the connecting end (11) of the aluminum bar (10) is flush with the bottom surface of the main body of the aluminum bar (10), the two sides of the adapter (12) in the width direction are flush with the two sides of the connecting 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 connecting end (11) of the aluminum bar (10).

17. The power transmission element according to claim 14, characterized in that: The width of the connecting end (11) of the aluminum bar (10) is equal to the width of the main body of the aluminum bar (10), and both sides of the connecting end (11) of the aluminum bar (10) in the width direction are respectively flush with both sides of the main body of the aluminum bar (10) in the width direction.

18. The power transmission element according to any one of claims 1 to 17, characterized in that: Also includes: An insulating layer (13) is wrapped around the main body of the aluminum bar (10).

19. An electrical connection assembly, characterized in that: include: The power transmission element (1) according to any one of claims 1 to 18; A terminal (2) having a flat rear connection end (21); and A connecting member (3) for fastening the adapter (12) of the power transmission member (1) to the rear connecting end (21) of the terminal (2), The adapter (12) and the terminal (2) are copper parts, copper alloy parts or conductive parts with copper plating on the surface, so that the material of the electrical contact surfaces of the adapter (12) and the terminal (2) that contact each other is copper or copper alloy.

20. The electrical connection assembly according to claim 19, characterized in that: A connecting through hole (201) is formed on the rear connecting end (21) of the terminal (2), and the connecting member (3) comprises a bolt (31) and a nut (32); The bolt (31) passes through the connection hole (102) on the adapter (12) and the connection through hole (201) on the rear connection end (21) of the terminal (2) and is threadedly connected to the nut (32).

21. The electrical connection assembly according to claim 19, characterized in that: 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 and connecting with a mating terminal.

22. A charging stand, characterized in that: include: case; and The electrical connection assembly according to any one of claims 19 to 21, The terminal (2) of the electrical connection assembly is installed in the housing, and the aluminum bar (10) of the power transmission member (1) protrudes from the housing.

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