Terminal, power transmission member, electrical connection assembly, and electrical connection device

Abstract

The present invention discloses a terminal, a power transmission member, an electrical connection assembly, and an electrical connection device.SOLUTION: For the terminal, the power transmission member, the electrical connection assembly, and the electrical connection device, the terminal includes a connection end that is flat-plate-shaped and that has two surfaces opposite to each other in a thickness direction of the connection end. A copper coating is formed on a surface of one of the connecting ends of the terminal by a cold coating process. The copper coating is for making electrical contact with the copper terminal to achieve an electrical connection between the terminal and the copper terminal. The present invention can reduce the manufacturing cost.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims the benefit of Chinese Patent Application No. CN202421842125.4, filed with the State Intellectual Property Office of China on July 31, 2024, the entire disclosure of which is incorporated herein by reference.

[0002] The present invention relates to terminals and electrical connection assemblies including the terminals, power transmission members and electrical connection assemblies including the power transmission members, and electrical connection devices including electrical connection assemblies. [Background technology]

[0003] In the prior art, to reduce the manufacturing costs of new energy vehicles and improve their current-carrying capacity, copper cables connected to charging docks are typically replaced with aluminum bus bars with large cross-sectional areas. The charging terminals of charging docks are typically copper terminals, which cannot be in direct electrical contact with the aluminum bus bars due to electrochemical corrosion problems. In the prior art, copper plates are typically soldered to the aluminum bus bars, and then electrically contact the copper terminals through the copper plates. However, this solution has the problem of high cost. Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention has been made to overcome or mitigate at least one aspect of the above-mentioned disadvantages. [Means for solving the problem]

[0005] According to one aspect of the present invention, there is provided a terminal. The terminal is a flat connecting end having two surfaces facing each other in a thickness direction of the connecting end. The terminal is an aluminum terminal, and a copper coating for electrical contact with a copper terminal is formed on one surface of the connecting end of the terminal by a cold coating process, thereby realizing electrical connection between the terminal and the copper terminal.

[0006] According to an exemplary embodiment of the present invention, a copper coating is also formed on the other surface of the connection end of the terminal, so that the copper terminal is adapted to electrically connect to either of the two surfaces of the connection end of the terminal.

[0007] According to another exemplary embodiment of the present invention, a connection hole that allows the passage of a bolt is formed in the connection end, so that the connection end can be fastened to the copper terminal by the bolt passing through the connection hole, and when the connection end is fastened to the copper terminal, the copper coating of the connection end is in electrical contact with the copper terminal.

[0008] According to another exemplary embodiment of the present invention, the connection hole has a length dimension and a width dimension, and the length dimension is greater than the width dimension, so that the terminal can move in the length direction of the connection hole relative to the bolt to absorb installation errors and / or manufacturing errors.

[0009] According to another exemplary embodiment of the present invention, rounded chamfers are formed on both sides of the width of the connecting end of the terminal, allowing the connecting end of the terminal to pass through a through hole in the housing of the electrical connection device.

[0010] According to another exemplary embodiment of the present invention, the terminal further includes a soldering end for soldering to a conductor of the power transmission member, the connecting end and the soldering end being located at opposite longitudinal ends of the terminal, respectively.

[0011] According to another exemplary embodiment of the present invention, the soldering end is flat and parallel to the connecting end, and the terminal further includes an intermediate plate portion extending diagonally between the connecting end and the soldering end such that the terminal is Z-shaped.

[0012] In accordance with another exemplary embodiment of the present invention, the terminal is a one-piece stamped member.

[0013] According to another aspect of the present invention, there is provided an electrical connection assembly including the terminal described above and a copper terminal having one end flattened and fastened to the connecting end of the terminal, the copper terminal having one end in electrical contact with the copper coating on the connecting end of the terminal, such that the copper terminal is electrically connected to the terminal through the copper coating.

[0014] According to an exemplary embodiment of the present invention, the electrical connection assembly further includes a nut fixed to one end of the copper terminal, and a bolt passing through the connection end of the terminal and the one end of the copper terminal and threadedly connected to the nut, the one end of the copper terminal being fastened to the connection end of the terminal by the bolt and the nut.

[0015] According to another exemplary embodiment of the present invention, the other end of the copper terminal is cylindrical or columnar to mate with a mating terminal.

[0016] According to another exemplary embodiment of the present invention, the electrical connection assembly further includes a power transmission member including a conductor soldered at one end to the solder end of the terminal and an insulating layer covering the outside of the conductor, the power transmission member being electrically connected to the copper terminal via the terminal.

[0017] According to another exemplary embodiment of the present invention, the conductor of the power transmission member is a copper conductor or an aluminum conductor, and the conductor is a round conductor or a flat conductor (flat conductor).

[0018] According to another aspect of the present invention, there is provided an electric power transmission member including a conductor, the conductor being an aluminum conductor and having a flat end, and a copper coating formed on one surface of the flat end of the conductor by a cold coating process, the copper coating configured to be in electrical contact with a copper terminal to provide an electrical connection between the conductor and the copper terminal.

[0019] According to an exemplary embodiment of the present invention, a copper coating is also formed on the other surface of the flat end of the conductor, so that the copper terminal is adapted to electrically connect to either of the two surfaces of the flat end of the conductor.

[0020] According to another exemplary embodiment of the present invention, the flat end has a connection hole formed therein that allows the bolt to pass through, so that the flat end can be fastened to a copper terminal by the bolt passing through the connection hole, and when the flat end is fastened to the copper terminal, the copper coating of the flat end is in electrical contact with the copper terminal.

[0021] According to another exemplary embodiment of the present invention, the connection hole has a length dimension and a width dimension, and the length dimension is greater than the width dimension, so that the conductor can move in the length direction of the connection hole relative to the bolt to accommodate installation and / or manufacturing errors.

[0022] According to another exemplary embodiment of the present invention, the conductor is a round conductor or a flat conductor (flat conductor).

[0023] According to another exemplary embodiment of the present invention, the power transmission member further includes an insulating layer covering the outside of the conductor.

[0024] According to another aspect of the present invention, there is provided an electrical connection assembly including the power transmission member described above and a copper terminal having one end flattened and fastened to the flat end of the conductor, the copper terminal having one end in electrical contact with the copper coating on the flat end of the conductor, thereby electrically connecting the copper terminal to the conductor through the copper coating.

[0025] According to an exemplary embodiment of the present invention, the electrical connection assembly further includes a nut fixed to one end of the copper terminal, and a bolt passing through the flat end of the conductor and the one end of the copper terminal and threadedly connected to the nut, the one end of the copper terminal being fastened to the flat end of the conductor by the bolt and the nut.

[0026] According to another exemplary embodiment of the present invention, the other end of the copper terminal is cylindrical or columnar to mate with a mating terminal.

[0027] According to another aspect of the present invention, there is provided an electrical connection device including a housing and the aforementioned electrical connection assembly with the copper terminals inserted into the housing to mate with mating terminals.

[0028] According to an exemplary embodiment of the present invention, the electrical connection device is a charging dock or a charging gun, and the copper terminals are charging terminals located on the charging dock or the charging gun.

[0029] According to another aspect of the present invention, a terminal is provided. The terminal includes a flat connection end for electrical connection to a copper terminal and a flat soldering end for soldering to a conductor. A nickel coating and a silver or tin coating overlying the nickel coating are formed on the surface of the connection end of the terminal by a cold coating process, with the silver or tin coating of the connection end of the terminal configured to make electrical contact with the copper terminal. A nickel coating and a silver coating overlying the nickel coating are formed on the surface of the soldering end of the terminal by a cold coating process, with the silver coating of the soldering end of the terminal configured to be soldered to a conductor.

[0030] According to an exemplary embodiment of the present invention, the terminals are copper terminals or aluminum terminals.

[0031] According to another exemplary embodiment of the present invention, a connection hole that allows the passage of a bolt is formed in the connection end, so that the connection end can be fastened to the copper terminal by the bolt passing through the connection hole, and when the connection end is fastened to the copper terminal, the silver coating or tin coating of the connection end is in electrical contact with the copper terminal.

[0032] According to another aspect of the present invention, a terminal is provided. The terminal includes a hollow barrel-shaped connecting end for electrical contact with an inserted resilient contact and a flat soldering end for soldering to a conductor. A nickel coating and a silver or tin coating overlaying the nickel coating are formed on the inner peripheral surface of the connecting end of the terminal by a cold coating process, with the silver or tin coating on the inner peripheral surface of the connecting end of the terminal configured to make electrical contact with the resilient contact. A nickel coating and a silver coating overlaying the nickel coating are formed on the surface of the soldering end of the terminal by a cold coating process, with the silver coating on the soldering end of the terminal configured to be soldered to a conductor.

[0033] According to an exemplary embodiment of the present invention, the terminals are copper terminals or aluminum terminals.

[0034] In some of the foregoing exemplary embodiments according to the present invention, the terminals or conductors are in electrical contact with the copper terminals by means of a copper coating that is cold coated onto the terminals or conductors, thereby reducing manufacturing costs.

[0035] In some of the foregoing exemplary embodiments according to the present invention, the terminals are in electrical contact with the copper terminals by a silver or tin coating that is cold coated onto the terminals, thereby reducing manufacturing costs.

[0036] In some of the above-described exemplary embodiments according to the present invention, the terminals are soldered to the conductors by means of a silver coating that is cold coated onto the terminals, thereby reducing manufacturing costs.

[0037] These and other features of the present invention will become more apparent from the detailed description of illustrative embodiments of the invention, taken in conjunction with the accompanying drawings. [Brief explanation of the drawings]

[0038] [Figure 1] 1 is an exemplary perspective view of a terminal according to an exemplary embodiment of the present invention; [Figure 2] 1 is a cross-sectional view of an electrical connection assembly according to an exemplary embodiment of the present invention. [Figure 3] 10 is an exemplary perspective view of an electrical connection assembly according to a further exemplary embodiment of the present invention. [Figure 4] FIG. 10 is an exemplary exploded view of an electrical connection assembly according to another exemplary embodiment of the present invention. [Figure 5] 10 is an exemplary perspective view of a terminal according to another exemplary embodiment of the present invention; [Figure 6] 10 is a cross-sectional view of a terminal according to another exemplary embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0039] Exemplary embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. Like reference numerals refer to like elements. However, the present disclosure may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the disclosure to those skilled in the art.

[0040] 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. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are diagrammatically shown to simplify the drawings.

[0041] According to a general concept of the present invention, there is provided a terminal, which is a flat connecting end having two surfaces facing each other in a thickness direction of the connecting end, and which is an aluminum terminal, and which has a copper coating formed on one surface of the connecting end of the terminal by a cold coating process for electrical contact with a copper terminal, thereby realizing electrical connection between the terminal and the copper terminal.

[0042] According to another general aspect of the present invention, there is provided an electrical connection assembly including the terminal described above and a copper terminal having one end flattened and fastened to the connecting end of the terminal, the copper terminal having one end in electrical contact with the copper coating on the connecting end of the terminal, such that the copper terminal is electrically connected to the terminal through the copper coating.

[0043] According to another general aspect of the present invention, there is provided an electric power transmission member including a conductor, the conductor being an aluminum conductor and having a flat end, and a copper coating formed on one surface of the flat end of the conductor by a cold coating process, the copper coating configured to make electrical contact with a copper terminal to achieve an electrical connection between the conductor and the copper terminal.

[0044] According to another general aspect of the present invention, there is provided an electrical connection assembly including the power transmission member described above and a copper terminal having one end flattened and fastened to the flat end of the conductor, the copper terminal having one end in electrical contact with the copper coating on the flat end of the conductor, thereby electrically connecting the copper terminal to the conductor through the copper coating.

[0045] According to another general aspect of the present invention, there is provided an electrical connection device including a housing and the electrical connection assembly described above, with the copper terminals inserted into the housing to mate with mating terminals.

[0046] According to another general aspect of the present invention, there is provided a terminal. The terminal includes a flat connecting end for electrical connection to a copper terminal and a flat soldering end for soldering to a conductor. A nickel coating and a silver or tin coating overlying the nickel coating are formed on the surface of the connecting end of the terminal by a cold coating process, with the silver or tin coating of the connecting end of the terminal configured to make electrical contact with the copper terminal. A nickel coating and a silver coating overlying the nickel coating are formed on the surface of the soldering end of the terminal by a cold coating process, with the silver coating of the soldering end of the terminal configured to be soldered to a conductor.

[0047] According to another general aspect of the present invention, a terminal is provided. The terminal includes a hollow barrel-shaped connecting end for electrical contact with an inserted resilient contact and a flat soldering end for soldering to a conductor. A nickel coating and a silver or tin coating overlying the nickel coating are formed on the inner peripheral surface of the connecting end of the terminal by a cold coating process, with the silver or tin coating on the inner peripheral surface of the connecting end of the terminal configured to make electrical contact with the resilient contact. A nickel coating and a silver coating overlying the nickel coating are formed on the surface of the soldering end of the terminal by a cold coating process, with the silver coating on the soldering end of the terminal configured to be soldered to a conductor.

[0048] First embodiment 1 and 2 illustrate a first embodiment according to the present invention, with Fig. 1 illustrating an exemplary perspective view of a terminal according to an exemplary embodiment of the present invention, and Fig. 2 illustrating a cross-sectional view of an electrical connection assembly according to an exemplary embodiment of the present invention.

[0049] As shown in Figures 1 and 2, an exemplary embodiment of the present invention discloses a terminal 1. The terminal 1 is a flat connecting end 11 having two surfaces facing each other in the thickness direction of the connecting end 11. The terminal 1 is an aluminum terminal, and a copper coating 6a for electrical contact with a copper terminal 2 is formed on one surface of the connecting end 11 of the terminal 1 by a cold coating process, thereby realizing electrical connection between the terminal 1 and the copper terminal 2.

[0050] As shown in Figures 1 and 2, in the illustrated embodiment, the copper coating 6a is also formed on the other surface of the connection end 11 of the terminal 1, so that the copper terminal 2 is adapted to be electrically connected to either of the two surfaces of the connection end 11 of the terminal 1.

[0051] 1 and 2, in the illustrated embodiment, a connection hole 7a that allows the bolt 4 to pass through is formed in the connection end 11, so that the connection end 11 can be fastened to the copper terminal 2 by the bolt 4 passing through the connection hole 7a. When the connection end 11 is fastened to the copper terminal 2, the copper coating 6a of the connection end 11 is in electrical contact with the copper terminal 2.

[0052] As shown in Figures 1 and 2, in the illustrated embodiment, the connection hole 7a has a length dimension and a width dimension, and the length dimension is greater than the width dimension, so that the terminal 1 can move in the length direction of the connection hole 7a relative to the bolt 4 to absorb installation errors and / or manufacturing errors.

[0053] As shown in Figures 1 and 2, in the illustrated embodiment, rounded chamfers are formed on both sides of the width of the connection end 11 of the terminal 1, allowing the connection end 11 of the terminal 1 to pass through a through hole in the housing of the electrical connection device.

[0054] 1 and 2, in the illustrated embodiment, the terminal 1 has a soldering end 12 for soldering to the conductor 30 of the power transmission member 3. The connection end 11 and the soldering end 12 are located at both ends of the terminal 1 in the longitudinal direction, respectively.

[0055] 1 and 2, in the illustrated embodiment, the soldering end 12 is flat and parallel to the connecting end 11. The terminal 1 further includes an intermediate plate portion 13 that extends diagonally between the connecting end 11 and the soldering end 12 such that the terminal 1 is Z-shaped.

[0056] As shown in Figures 1 and 2, in the illustrated embodiment, terminal 1 is a one-piece stamped member.

[0057] 1 and 2, another exemplary embodiment of the present invention discloses an electrical connection assembly. The electrical connection assembly includes a terminal 1 and a copper terminal 2. One end 21 of the copper terminal 2 is flattened and fastened to the connecting end 11 of the terminal 1. One end 21 of the copper terminal 2 is in electrical contact with the copper coating 6a of the connecting end 11 of the terminal 1, so that the copper terminal is electrically connected to the terminal 1 via the copper coating 6a.

[0058] 1 and 2 , in the illustrated embodiment, the electrical connection assembly further includes a nut 5 and a bolt 4. The nut 5 is fixed to one end 21 of the copper terminal 2. The bolt 4 passes through the connection end 11 of the terminal 1 and the one end 21 of the copper terminal 2 and is threadably connected to the nut 5. The one end 21 of the copper terminal 2 is fastened to the connection end 11 of the terminal 1 by the bolt 4 and the nut 5.

[0059] As shown in FIGS. 1 and 2, in the illustrated embodiment, the other end 22 of the copper terminal 2 is cylindrical or columnar so as to mate with a mating terminal (not shown).

[0060] 1 and 2, in the illustrated embodiment, the electrical connection assembly further includes a power transmission member 3. The power transmission member 3 includes a conductor 30 and an insulating layer (not shown). One end of the conductor 30 is soldered to the soldering end 12 of the terminal 1, and the insulating layer covers the outside of the conductor 30. The power transmission member 3 is electrically connected to the copper terminal 2 via the terminal 1.

[0061] As shown in FIGS. 1 and 2, in the illustrated embodiment, the conductor 30 of the power transmission member 3 is a copper conductor or an aluminum conductor, and the conductor 30 is a circular conductor or a flat conductor.

[0062] 1 and 2, another exemplary embodiment of the present invention discloses an electrical connection device, which includes a housing and an electrical connection assembly in which a copper terminal 2 is inserted into the housing to mate with a mating terminal.

[0063] As shown in FIGS. 1 and 2, in the illustrated embodiment, the electrical connection device is a charging dock or a charging gun, and the copper terminal 2 is a charging terminal disposed on the charging dock or the charging gun.

[0064] Second embodiment Figures 3 and 4 illustrate a second embodiment according to the present invention: Figure 3 illustrates an exemplary perspective view of an electrical connection assembly according to a further exemplary embodiment of the present invention, and Figure 4 illustrates an exemplary exploded view of an electrical connection assembly according to another exemplary embodiment of the present invention.

[0065] 3 and 4 , an exemplary embodiment of the present invention discloses a power transmission member 3. The power transmission member 3 includes a conductor 30, which is an aluminum conductor and has a flat end 31. A copper coating 6a is formed on one surface of the flat end 31 of the conductor 30 by a cold coating process, and the copper coating 6a is configured to be in electrical contact with a copper terminal 2 to realize an electrical connection between the conductor 30 and the copper terminal 2.

[0066] As shown in Figures 3 and 4, in the illustrated embodiment, the copper coating 6a is also formed on the other surface of the flat end 31 of the conductor 30, so that the copper terminal 2 is adapted to be electrically connected to either of the two surfaces of the flat end 31 of the conductor 30.

[0067] 3 and 4, in the illustrated embodiment, a connection hole 7a that allows the bolt 4 to pass through is formed in the flat end 31, so that the flat end 31 can be fastened to the copper terminal 2 by the bolt 4 passing through the connection hole 7a. When the flat end 31 is fastened to the copper terminal 2, the copper coating 6a of the flat end 31 is in electrical contact with the copper terminal 2.

[0068] As shown in Figures 3 and 4, in the illustrated embodiment, the connection hole 7a has a length dimension and a width dimension, and the length dimension is greater than the width dimension, so that the conductor 30 can move in the length direction of the connection hole 7a relative to the bolt 4 to absorb installation errors and / or manufacturing errors.

[0069] As shown in FIGS. 3 and 4, in the illustrated embodiment, the conductor 30 is a circular conductor 30 or a flat conductor (flat conductor) 30.

[0070] As shown in FIGS. 3 and 4, in the illustrated embodiment, the power transmission member 3 further includes an insulating layer (not shown) covering the outside of the conductor 30.

[0071] 3 and 4, another exemplary embodiment of the present invention discloses an electrical connection assembly. The electrical connection assembly includes the aforementioned power transmission member 3 and a copper terminal 2. One end 21 of the copper terminal 2 is flattened and fastened to a flat end 31 of a conductor 30. One end 21 of the copper terminal 2 is in electrical contact with the copper coating 6a on the flat end 31 of the conductor 30, thereby electrically connecting the copper terminal to the conductor 30 via the copper coating 6a.

[0072] 3 and 4 , in the illustrated embodiment, the electrical connection assembly further includes a nut 5 and a bolt 4. The nut 5 is fixed to one end 21 of the copper terminal 2, and the bolt 4 passes through the flat end 31 of the conductor 30 and the one end 21 of the copper terminal 2 and is threadedly connected to the nut 5. The one end 21 of the copper terminal 2 is fastened to the flat end 31 of the conductor 30 by the bolt 4 and the nut 5.

[0073] As shown in FIGS. 3 and 4, in the illustrated embodiment, the other end 22 of the copper terminal 2 is cylindrical or columnar so as to mate with a mating terminal (not shown).

[0074] 3 and 4, another exemplary embodiment of the present invention discloses an electrical connection device. The electrical connection device includes a housing and an electrical connection assembly. A copper terminal 2 of the electrical connection device is inserted into the housing to mate with a mating terminal.

[0075] As shown in FIGS. 3 and 4, in the illustrated embodiment, the electrical connection device is a charging dock or a charging gun, and the copper terminal 2 is a charging terminal disposed on the charging dock or the charging gun.

[0076] Third embodiment Although not shown, another exemplary embodiment of the present invention discloses a terminal, the structure of which is almost the same as the structure of the terminal 1 shown in Figures 1 and 2 except for the difference in the coating by the cold spray method, and therefore the terminal 1 shown in Figures 1 and 2 can be referred to.

[0077] In an exemplary embodiment of the present invention, the terminal includes a connecting end 11 and a soldering end 12. The connecting end 11 is flat and planar for electrical connection to a copper terminal 2, and the soldering end 12 is flat and planar for soldering to a conductor 30. The conductor 30 is an aluminum conductor.

[0078] In an exemplary embodiment of the present invention, a nickel coating and a silver coating overlaid on the nickel coating are formed on the surface of the connection end 11 of the terminal by a cold coating process, and the silver coating on the connection end 11 of the terminal is configured to make electrical contact with the copper terminal 2.

[0079] In another exemplary embodiment of the present invention, a nickel coating and a tin coating overlaid on the nickel coating are formed on the surface of the connection end 11 of the terminal by a cold coating process, and the tin coating on the connection end 11 of the terminal is configured to make electrical contact with the copper terminal 2.

[0080] In another exemplary embodiment of the present invention, a nickel coating and a silver coating overlying the nickel coating are formed on the surface of the soldering end 12 of the terminal by a cold coating process, and the silver coating on the soldering end 12 of the terminal is configured to be soldered to the conductor 30.

[0081] In another exemplary embodiment of the present invention, the aforementioned terminals are copper terminals or aluminum terminals.

[0082] In another exemplary embodiment of the present invention, a connection hole 7a that allows the bolt 4 to pass through is formed in the connection end 11, so that the connection end 11 can be fastened to the copper terminal 2 by the bolt 4 passing through the connection hole 7a. When the connection end 11 is fastened to the copper terminal 2, the silver coating or tin coating of the connection end 11 makes electrical contact with the copper terminal 2.

[0083] Fourth embodiment 5 and 6 show a fourth embodiment of the present invention, with Fig. 5 showing an exemplary perspective view of a terminal according to another exemplary embodiment of the present invention, and Fig. 6 showing a cross-sectional view of a terminal according to another exemplary embodiment of the present invention.

[0084] 5 and 6, an exemplary embodiment of the present invention discloses a terminal 1. The terminal 1 includes a connecting end 11 and a soldering end 12. The connecting end 11 is hollow and barrel-shaped for electrical contact with an inserted elastic contact (not shown), and the soldering end 12 is flat and plate-shaped for soldering to a conductor 30, for example, the conductor 30 of a power transmission member 3.

[0085] As shown in Figures 5 and 6, in the illustrated embodiment, a nickel coating and a silver coating or tin coating superimposed on the nickel coating are formed on the inner surface 11a of the connecting end 11 of the terminal by a cold coating process, and the silver coating or tin coating on the inner surface 11a of the connecting end 11 of the terminal is configured to make electrical contact with the elastic contact.

[0086] As shown in Figures 5 and 6, in the illustrated embodiment, a nickel coating and a silver coating overlying the nickel coating are formed on the surface 12a of the soldering end 12 of the terminal by a cold coating process, and the silver coating on the soldering end 12 of the terminal is configured to be soldered to the conductor 30.

[0087] As shown in Figures 5 and 6, in the illustrated embodiment, the terminals are copper terminals or aluminum terminals.

[0088] Those skilled in the art should appreciate that the above embodiments are illustrative and not intended to be limiting. For example, many modifications to the above embodiments may be made by those skilled in the art, and various features described in different embodiments may be freely combined with each other without any contradiction in structure or principle.

[0089] While several exemplary embodiments have been shown and described, it will be appreciated by those skilled in the art that various modifications or variations may be made to these embodiments without departing from the principles and spirit of the present disclosure, the scope of which is defined by the claims and their equivalents.

[0090] As used herein, unless expressly stated otherwise, elements described in the singular and preceded by the words "a" or "an" should be understood as not excluding a plurality of such elements or steps. 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. Furthermore, unless expressly stated otherwise, embodiments "comprising" or "having" an element or elements having a particular characteristic may include additional such elements that do not have that characteristic.

Claims

1. A terminal, The connecting end (11) is a flat connecting end (11) having two surfaces facing each other in a thickness direction of the connecting end (11), The terminal (1) is an aluminum terminal, and a copper coating (6a) for electrical contact with a copper terminal (2) is formed on one surface of the connection end (11) of the terminal (1) by a cold coating process, thereby realizing electrical connection between the terminal (1) and the copper terminal (2).

2. 2. The terminal according to claim 1, wherein the copper coating (6a) is also formed on the other surface of the connection end (11) of the terminal (1), so that the copper terminal (2) is adapted to be electrically connected to either of the two surfaces of the connection end (11) of the terminal (1).

3. A connection hole (7a) that allows the bolt (4) to pass through is formed in the connection end (11), so that the connection end (11) can be fastened to the copper terminal (2) by the bolt (4) passing through the connection hole (7a); 2. The terminal according to claim 1, wherein when the connecting end (11) is fastened to the copper terminal (2), the copper coating (6a) of the connecting end (11) is in electrical contact with the copper terminal (2).

4. The terminal according to claim 3, wherein the connection hole (7a) has a length dimension and a width dimension, and the length dimension is greater than the width dimension, so that the terminal (1) can move in the length direction of the connection hole (7a) relative to the bolt (4) to absorb installation errors and / or manufacturing errors.

5. 2. The terminal according to claim 1, wherein rounded chamfered portions are formed on both sides of the connecting end (11) of the terminal (1) in the width direction, thereby enabling the connecting end (11) of the terminal (1) to pass through a through hole in a housing of an electrical connecting device.

6. Further provided are soldering ends (12) for soldering to the conductors (30) of the power transmission member (3); The terminal according to any one of claims 1 to 5, wherein the connection end (11) and the soldering end (12) are located at both ends of the terminal (1) in the longitudinal direction.

7. 7. The terminal according to claim 6, wherein the soldering end (12) is flat and parallel to the connecting end (11), and the terminal (1) further comprises an intermediate plate portion (13) extending diagonally between the connecting end (11) and the soldering end (12) so that the terminal (1) is Z-shaped.

8. 2. The terminal according to claim 1, wherein the terminal (1) is a one-piece stamped member.

9. 1. An electrical connection assembly comprising: A terminal (1) according to any one of claims 1 to 8; A copper terminal (2) whose one end (21) is processed into a flat plate and fastened to the connecting end (11) of the terminal (1); Equipped with One end (21) of the copper terminal (2) is in electrical contact with the copper coating (6a) of the connecting end (11) of the terminal (1), thereby electrically connecting the copper terminal to the terminal (1) through the copper coating (6a). Electrical connection assembly.

10. a nut (5) fixed to one end (21) of the copper terminal (2); a bolt (4) passing through the connecting end (11) of the terminal (1) and one end (21) of the copper terminal (2) and threadedly connected to the nut (5); Furthermore, 10. The electrical connection assembly according to claim 9, wherein one end (21) of the copper terminal (2) is fastened to the connecting end (11) of the terminal (1) by the bolt (4) and the nut (5).

11. 10. The electrical connection assembly according to claim 9, wherein the other end (22) of the copper terminal (2) is cylindrical or columnar to mate with a mating terminal.

12. The power transmission member (3) further includes: a conductor (30) having one end soldered to the soldering end (12) of the terminal (1); an insulating layer covering the outside of the conductor (30); Equipped with 10. The electrical connection assembly of claim 9, wherein the power transmission member (3) is electrically connected to the copper terminal (2) through the terminal (1).

13. 13. The electrical connection assembly of claim 12, wherein the conductor (30) of the power transmission member (3) is a copper conductor or an aluminum conductor, and the conductor (30) is a round conductor or a flat conductor.

14. A power transmission member, a conductor (30), the conductor (30) being an aluminum conductor and having a flat end (31); a copper coating (6a) formed on one surface of the flat end (31) of the conductor (30) by a cold coating process, the copper coating (6a) being configured to be in electrical contact with a copper terminal (2) to realize an electrical connection between the conductor (30) and the copper terminal (2); Power transmission components.

15. 15. The power transmission member of claim 14, wherein the copper coating (6a) is also formed on the other surface of the flat end (31) of the conductor (30), so that the copper terminal (2) is adapted to be electrically connected to either of the two surfaces of the flat end (31) of the conductor (30).

16. A connection hole (7a) through which a bolt (4) can pass is formed in the flat end (31), so that the flat end (31) can be fastened to the copper terminal (2) by the bolt (4) passing through the connection hole (7a); 15. The power transmission member according to claim 14, wherein when the flat end portion (31) is fastened to the copper terminal (2), the copper coating (6a) of the flat end portion (31) is in electrical contact with the copper terminal (2).

17. The power transmission member of claim 16, wherein the connection hole (7a) has a length dimension and a width dimension, and the length dimension is greater than the width dimension, so that the conductor (30) can move in the length direction of the connection hole (7a) relative to the bolt (4) to absorb installation errors and / or manufacturing errors.

18. The power transmission member according to claim 14, wherein the conductor (30) is a round conductor (30) or a flat conductor (30).

19. The power transfer member of claim 14, further comprising an insulating layer covering the outside of the conductor (30).

20. 1. An electrical connection assembly comprising: A power transmission member (3) according to any one of claims 14 to 19; A copper terminal (2) whose one end (21) is flattened and fastened to the flat end (31) of the conductor (30); Equipped with One end (21) of the copper terminal (2) is in electrical contact with the copper coating (6a) on the flat end (31) of the conductor (30), thereby electrically connecting the copper terminal to the conductor (30) through the copper coating (6a). Electrical connection assembly.

21. a nut (5) fixed to one end (21) of the copper terminal (2); a bolt (4) passing through the flat end (31) of the conductor (30) and one end (21) of the copper terminal (2) and threadedly connected to the nut (5); Furthermore, 21. The electrical connection assembly of claim 20, wherein one end (21) of the copper terminal (2) is fastened to the flat end (31) of the conductor (30) by the bolt (4) and the nut (5).

22. 21. The electrical connection assembly according to claim 20, wherein the other end (22) of the copper terminal (2) is cylindrical or columnar to mate with a mating terminal.

23. 1. An electrical connection device comprising: Housing and 23. The electrical connection assembly according to any one of claims 9 to 13 and claims 20 to 22, wherein a copper terminal (2) is inserted into the housing so as to mate with a mating terminal; An electrical connection device comprising:

24. 24. The electrical connection device according to claim 23, wherein the electrical connection device is a charging dock or a charging gun, and the copper terminal (2) is a charging terminal disposed on the charging dock or the charging gun.

25. A terminal, a flat connecting end (11) for electrical connection to a copper terminal (2); a flat soldering end (12) for soldering to a conductor (30); Equipped with a nickel coating and a silver coating or a tin coating superimposed on the nickel coating are formed on the surface of the connection end (11) of the terminal by a cold coating process, and the silver coating or the tin coating on the connection end (11) of the terminal is configured to be in electrical contact with the copper terminal (2); A nickel coating and a silver coating overlaid on the nickel coating are formed on the surface of the soldering end (12) of the terminal by a cold coating process, and the silver coating on the soldering end (12) of the terminal is configured to be soldered to the conductor (30).

26. 26. The terminal of claim 25, wherein the terminal is a copper terminal or an aluminum terminal.

27. A connection hole (7a) that allows the bolt (4) to pass through is formed in the connection end (11), so that the connection end (11) can be fastened to the copper terminal (2) by the bolt (4) passing through the connection hole (7a); 26. The terminal according to claim 25, wherein when the connection end (11) is fastened to the copper terminal (2), the silver coating or the tin coating of the connection end (11) is in electrical contact with the copper terminal (2).

28. A terminal, a hollow barrel-shaped connecting end (11) for electrical contact with an inserted elastic contact; a flat soldering end (12) for soldering to a conductor (30); Equipped with a nickel coating and a silver coating or a tin coating superimposed on the nickel coating are formed on the inner peripheral surface (11a) of the connection end (11) of the terminal by a cold coating process, and the silver coating or the tin coating on the inner peripheral surface (11a) of the connection end (11) of the terminal is configured to be in electrical contact with the elastic contact; A terminal, wherein a nickel coating and a silver coating overlaid on the nickel coating are formed on a surface (12a) of the soldering end (12) of the terminal by a cold coating process, and the silver coating on the soldering end (12) of the terminal is configured to be soldered to the conductor (30).

29. 30. The terminal of claim 28, wherein the terminal is a copper terminal or an aluminum terminal.

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