Terminal, power transmission piece, electric connection assembly and electric connection device

Abstract

The utility model discloses a terminal, a power transmission piece, an electric connection assembly and an electric connection device. The terminal comprises a connecting end which is in a flat plate shape and is provided with two opposite surfaces in the thickness direction of the connecting end. A copper coating is formed on one surface of the connecting end of the terminal through a cold coating process, and the copper coating is used for being in electric contact with a copper terminal so as to achieve electric connection between the terminal and the copper terminal. According to the utility model, the manufacturing cost can be reduced.

Description

Technical Field

[0001] The utility model relates to a terminal and an electrical connection component comprising the terminal, to a power transmission component and an electrical connection component comprising the power transmission component, and also to an electrical connection device comprising the electrical connection component. Background Art

[0002] In the prior art, in order to reduce the manufacturing cost of new energy vehicles and improve the current carrying capacity, the copper cable connected to the charging station is usually replaced with a large-section aluminum busbar. The charging terminal of the charging station is usually a copper terminal, which cannot be directly in electrical contact with the aluminum busbar because there is an electrochemical corrosion problem between the two. In the prior art, a copper sheet is usually welded on the aluminum busbar first, and then the copper sheet is electrically contacted with the copper terminal. However, this solution has the problem of high cost. Utility Model Content

[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 utility model, a terminal is provided. The terminal comprises: a connecting end, which is in the shape of a flat plate and has two surfaces opposite to each other in the thickness direction. The terminal is an aluminum terminal, and a copper coating is formed on one surface of the connecting end of the terminal by a cold coating process, and the copper coating is used to electrically contact with a copper terminal to achieve electrical connection between the terminal and the copper terminal.

[0005] According to an exemplary embodiment of the present invention, the copper coating is also formed on the other surface of the connection end of the terminal, so that the copper terminal is suitable for being electrically connected to any one of the two surfaces of the connection end of the terminal.

[0006] According to another exemplary embodiment of the utility model, a connection hole allowing a bolt to pass through is formed on the connection end, so that the connection end can be fastened to the copper terminal by the bolt passing through the connection hole; when the connection end is fastened to the copper terminal, the copper coating on the connection end is in electrical contact with the copper terminal.

[0007] According to another exemplary embodiment of the utility model, the connecting 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 relative to the bolt in the length direction of the connecting hole to absorb installation errors and / or manufacturing errors.

[0008] According to another exemplary embodiment of the present invention, rounded chamfers are formed on both sides of the connecting end of the terminal in the width direction to allow the connecting end of the terminal to pass through the through hole on the housing of the electrical connection device.

[0009] According to another exemplary embodiment of the present invention, the terminal further comprises: a welding end for welding to a conductor of a power transmission member, and the connecting end and the welding end are respectively located at two longitudinal ends of the terminal.

[0010] According to another exemplary embodiment of the present invention, the welding end is in the shape of a flat plate and is parallel to the connecting end, and the terminal further includes an intermediate plate portion extending obliquely between the connecting end and the welding end, so that the terminal is in a Z shape.

[0011] According to another exemplary embodiment of the present utility model, the terminal is an integral stamping part.

[0012] According to another aspect of the utility model, an electrical connection assembly is provided. The electrical connection assembly comprises: the aforementioned terminal; and a copper terminal, one end of which is flat and fastened to the connecting end of the terminal. One end of the copper terminal is in electrical contact with the copper coating on the connecting end of the terminal to be electrically connected to the terminal via the copper coating.

[0013] According to an exemplary embodiment of the utility model, the electrical connection assembly also includes: a nut fixed to one end of the copper terminal; and a bolt passing through the connecting end of the terminal and one end of the copper terminal and threadedly connected to the nut, and one end of the copper terminal is fastened to the connecting end of the terminal by the bolt and the nut.

[0014] According to another exemplary embodiment of the present utility model, the other end of the copper terminal is cylindrical or columnar so as to mate with the mating terminal.

[0015] According to another exemplary embodiment of the utility model, the electrical connection assembly further includes a power transmission member. The power transmission member includes: a conductor, one end of which is welded to the welding end of the terminal; and an insulating layer wrapped around the outside of the conductor, and the power transmission member is electrically connected to the copper terminal via the terminal.

[0016] According to another exemplary embodiment of the present invention, the conductor of the power transmission element is a copper conductor or an aluminum conductor, and the conductor is a round conductor or a flat conductor.

[0017] According to another aspect of the utility model, a power transmission component is provided. The power transmission component comprises: a conductor, the conductor is an aluminum conductor and has a flat end. A copper coating is formed on one surface of the flat end of the conductor by a cold coating process, and the copper coating is used to electrically contact with a copper terminal to achieve electrical connection between the conductor and the copper terminal.

[0018] According to an exemplary embodiment of the present invention, the copper coating is also formed on the other surface of the flat end of the conductor, so that the copper terminal is suitable for being electrically connected to any one of the two surfaces of the flat end of the conductor.

[0019] According to another exemplary embodiment of the utility model, a connection hole allowing a bolt to pass through is formed on the flat end, so that the flat end can be fastened to the copper terminal by the bolt passing through the connection hole; when the flat end is fastened to the copper terminal, the copper coating on the flat end is in electrical contact with the copper terminal.

[0020] According to another exemplary embodiment of the present invention, the connecting 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 connecting hole relative to the bolt to absorb installation errors and / or manufacturing errors.

[0021] According to another exemplary embodiment of the present invention, the conductor is a round conductor or a flat conductor.

[0022] According to another exemplary embodiment of the present invention, the power transmission component further includes: an insulating layer wrapped around the outside of the conductor.

[0023] According to another aspect of the utility model, an electrical connection assembly is provided, which includes: the aforementioned power transmission member; and a copper terminal, one end of which is flat and fastened to the flat end of the conductor, and one end of the copper terminal is in electrical contact with the copper coating on the flat end of the conductor to be electrically connected to the conductor via the copper coating.

[0024] According to another exemplary embodiment of the utility model, the electrical connection assembly also includes: a nut fixed to one end of the copper terminal; and a bolt passing through the flat end of the conductor and one end of the copper terminal and threadedly connected to the nut, and one end of the copper terminal is fastened to the flat end of the conductor by the bolt and the nut.

[0025] According to another exemplary embodiment of the present utility model, the other end of the copper terminal is cylindrical or columnar so as to mate with the mating terminal.

[0026] According to another aspect of the utility model, an electrical connection device is provided, comprising: a housing; and the aforementioned electrical connection assembly, wherein a copper terminal of the electrical connection assembly is inserted into the housing to mate with a mating terminal.

[0027] According to an exemplary embodiment of the present utility model, the electrical connection device is a charging base or a charging gun, and the copper terminal is a charging terminal arranged in the charging base or the charging gun.

[0028] According to another aspect of the utility model, a terminal is provided. The terminal comprises: a connecting end in a flat plate shape for electrically connecting to a copper terminal; and a welding end in a flat plate shape for welding to a conductor. A nickel coating and a silver coating or a tin coating covering the nickel coating are formed on the surface of the connecting end of the terminal by a cold coating process, and the silver coating or the tin coating on the connecting end of the terminal is used for electrically contacting the copper terminal; a nickel coating and a silver coating covering the nickel coating are formed on one surface of the welding end of the terminal by a cold coating process, and the silver coating on the welding end of the terminal is used for welding to the conductor.

[0029] According to an exemplary embodiment of the present utility model, the terminal is a copper terminal or an aluminum terminal.

[0030] According to another exemplary embodiment of the utility model, a connection hole allowing a bolt to pass through is formed on the connection end, so that the connection end can be fastened to the copper terminal by the bolt passing through the connection hole; when the connection end is fastened to the copper terminal, the silver coating or tin coating on the connection end is in electrical contact with the copper terminal.

[0031] According to another aspect of the utility model, a terminal is provided. The terminal comprises: a connecting end in a hollow cylindrical shape for electrically contacting an inserted elastic contact piece; and a welding end in a flat plate shape for welding to a conductor. A nickel coating and a silver coating or a tin coating covering the nickel coating are formed on the inner circumferential surface of the connecting end of the terminal by a cold coating process, and the silver coating or the tin coating on the inner circumferential surface of the connecting end of the terminal is used for electrically contacting the elastic contact piece; a nickel coating and a silver coating covering the nickel coating are formed on one surface of the welding end of the terminal by a cold coating process, and the silver coating on the welding end of the terminal is used for welding to the conductor.

[0032] According to an exemplary embodiment of the present utility model, the terminal is a copper terminal or an aluminum terminal.

[0033] In some of the aforementioned exemplary embodiments according to the present invention, the terminal or conductor is in electrical contact with the copper terminal through the copper coating cold-coated thereon, thereby being able to reduce manufacturing costs.

[0034] In some of the aforementioned exemplary embodiments according to the present invention, the terminal is in electrical contact with the copper terminal through the silver coating or tin coating cold-coated thereon, thereby reducing the manufacturing cost.

[0035] In some of the aforementioned exemplary embodiments according to the present invention, the terminal is welded to the conductor through the silver coating cold-coated thereon, thereby being able to reduce manufacturing costs.

[0036] 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

[0037] Figure 1 A three-dimensional schematic diagram showing a terminal according to an exemplary embodiment of the utility model;

[0038] Figure 2 A cross-sectional view showing an electrical connection assembly according to an exemplary embodiment of the present utility model;

[0039] Figure 3 A perspective schematic diagram showing an electrical connection assembly according to another exemplary embodiment of the utility model;

[0040] Figure 4 An exploded schematic diagram showing an electrical connection assembly according to another exemplary embodiment of the present utility model;

[0041] Figure 5 A three-dimensional schematic diagram showing a terminal according to another exemplary embodiment of the utility model;

[0042] Figure 6 A cross-sectional view showing a terminal according to another exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0043] The technical solution of the utility model is further specifically described below through examples and in combination with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the implementation mode of the utility model with reference to the accompanying drawings is intended to explain the overall utility model concept of the utility model, and should not be understood as a limitation of the utility model.

[0044] 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.

[0045] According to an overall technical concept of the utility model, a terminal is provided. The terminal comprises: a connecting end, which is in the shape of a flat plate and has two surfaces opposite to each other in the thickness direction. The terminal is an aluminum terminal, and a copper coating is formed on one surface of the connecting end of the terminal by a cold coating process, and the copper coating is used to electrically contact with a copper terminal to achieve electrical connection between the terminal and the copper terminal.

[0046] According to another general technical concept of the utility model, an electrical connection assembly is provided. The electrical connection assembly includes: the aforementioned terminal; and a copper terminal, one end of which is flat and fastened to the connecting end of the terminal. One end of the copper terminal is in electrical contact with the copper coating on the connecting end of the terminal to be electrically connected to the terminal via the copper coating.

[0047] According to another general technical concept of the utility model, a power transmission component is provided. The power transmission component includes: a conductor, the conductor is an aluminum conductor and has a flat end. A copper coating is formed on one surface of the flat end of the conductor by a cold coating process, and the copper coating is used to electrically contact with a copper terminal to achieve electrical connection between the conductor and the copper terminal.

[0048] According to another general technical concept of the utility model, an electrical connection assembly is provided, which includes: the aforementioned power transmission member; and a copper terminal, one end of which is flat and fastened to the flat end of the conductor, and one end of the copper terminal is in electrical contact with the copper coating on the flat end of the conductor to be electrically connected to the conductor via the copper coating.

[0049] According to another general technical concept of the utility model, an electrical connection device is provided, which comprises: a housing; and the aforementioned electrical connection assembly, wherein the copper terminal is inserted into the housing for mating with a mating terminal.

[0050] According to another general technical concept of the utility model, a terminal is provided. The terminal comprises: a connecting end in a flat plate shape for electrically connecting to a copper terminal; and a welding end in a flat plate shape for welding to a conductor. A nickel coating and a silver coating or a tin coating covering the nickel coating are formed on the surface of the connecting end of the terminal by a cold coating process, and the silver coating or the tin coating on the connecting end of the terminal is used for electrically contacting the copper terminal; a nickel coating and a silver coating covering the nickel coating are formed on one surface of the welding end of the terminal by a cold coating process, and the silver coating on the welding end of the terminal is used for welding to the conductor.

[0051] According to another general technical concept of the utility model, a terminal is provided. The terminal includes: a connecting end in a hollow cylindrical shape for electrically contacting an inserted elastic contact piece; and a welding end in a flat plate shape for welding to a conductor. A nickel coating and a silver coating or a tin coating covering the nickel coating are formed on the inner circumferential surface of the connecting end of the terminal by a cold coating process, and the silver coating or the tin coating on the inner circumferential surface of the connecting end of the terminal is used for electrically contacting the elastic contact piece; a nickel coating and a silver coating covering the nickel coating are formed on one surface of the welding end of the terminal by a cold coating process, and the silver coating on the welding end of the terminal is used for welding to the conductor.

[0052] First embodiment

[0053] Figure 1 and Figure 2 The first embodiment of the present utility model is shown. Figure 1 A three-dimensional schematic diagram showing a terminal according to an exemplary embodiment of the utility model; Figure 2 A cross-sectional view of an electrical connection assembly according to an exemplary embodiment of the present invention is shown.

[0054] like Figure 1 and Figure 2 As shown, in an exemplary embodiment of the utility model, a terminal 1 is disclosed. The terminal 1 includes a connecting end 11, which is in a flat plate shape and has two surfaces opposite to each other in the thickness direction. The terminal 1 is an aluminum terminal, and a copper coating 6a is formed on one surface of the connecting end 11 of the terminal 1 by a cold coating process, and the copper coating 6a is used to electrically contact with the copper terminal 2 to achieve electrical connection between the terminal 1 and the copper terminal 2.

[0055] like Figure 1 and Figure 2 As shown, in the illustrated embodiment, a copper coating 6 a is also formed on the other surface of the connection end 11 of the terminal 1 , so that the copper terminal 2 is suitable for being electrically connected to any one of the two surfaces of the connection end 11 of the terminal 1 .

[0056] like Figure 1 and Figure 2 As shown, in the illustrated embodiment, a connection hole 7a is formed on the connection end 11 to allow the bolt 4 to pass through, 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 on the connection end 11 is in electrical contact with the copper terminal 2.

[0057] like Figure 1 and Figure 2 As shown, in the illustrated embodiment, the connecting 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 relative to the bolt 4 in the length direction of the connecting hole 7a to absorb installation errors and / or manufacturing errors.

[0058] like Figure 1 and Figure 2 As shown, in the illustrated embodiment, circular chamfers are formed on both sides of the connection end 11 of the terminal 1 in the width direction to allow the connection end 11 of the terminal 1 to pass through the through hole on the housing of the electrical connection device.

[0059] like Figure 1 and Figure 2As shown, in the illustrated embodiment, the terminal 1 further includes a welding end 12 , which is used to be welded to the conductor 30 of the power transmission member 3 , and the connecting end 11 and the welding end 12 are respectively located at two longitudinal ends of the terminal 1 .

[0060] like Figure 1 and Figure 2 As shown, in the illustrated embodiment, the welding end 12 is in the shape of a flat plate and is parallel to the connecting end 11 , and the terminal 1 further includes a middle plate portion 13 extending obliquely between the connecting end 11 and the welding end 12 , so that the terminal 1 is in a Z shape.

[0061] like Figure 1 and Figure 2 As shown, in the illustrated embodiment, the terminal 1 is an integral stamping part.

[0062] like Figure 1 and Figure 2 As shown, in another exemplary embodiment of the utility model, an electrical connection assembly is also disclosed. The electrical connection assembly includes: a terminal 1 and a copper terminal 2. One end 21 of the copper terminal 2 is flat and fastened to the connection end 11 of the terminal 1. One end 21 of the copper terminal 2 is in electrical contact with the copper coating 6a on the connection end 11 of the terminal 1 to be electrically connected to the terminal 1 via the copper coating 6a.

[0063] like Figure 1 and Figure 2 As shown, 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 threadedly 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.

[0064] like Figure 1 and Figure 2 As shown, in the illustrated embodiment, the other end 22 of the copper terminal 2 is in a cylindrical or columnar shape to mate with a matching terminal (not shown).

[0065] like Figure 1 and Figure 2 As shown, in the illustrated embodiment, the electrical connection assembly further includes a power transmission member 3, which includes: a conductor 30 and an insulating layer (not shown). One end of the conductor 30 is welded to the welding end 12 of the terminal 1. The insulating layer is wrapped around the outside of the conductor 30. The power transmission member 3 is electrically connected to the copper terminal 2 via the terminal 1.

[0066] like Figure 1 and Figure 2 As shown, 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 round conductor or a flat conductor.

[0067] like Figure 1 and Figure 2 As shown, in another exemplary embodiment of the utility model, an electrical connection device is also disclosed. The electrical connection device includes: a housing and an electrical connection assembly. The copper terminal 2 of the electrical connection assembly is inserted into the housing for mating with a mating terminal.

[0068] like Figure 1 and Figure 2 As shown, in the illustrated embodiment, the electrical connection device is a charging base or a charging gun, and the copper terminal 2 is a charging terminal arranged in the charging base or the charging gun.

[0069] Second embodiment

[0070] Figure 3 and Figure 4 The second embodiment of the present invention is shown. Figure 3 A perspective schematic diagram showing an electrical connection assembly according to another exemplary embodiment of the utility model; Figure 4 An exploded schematic diagram of an electrical connection assembly according to another exemplary embodiment of the present invention is shown.

[0071] like Figure 3 and Figure 4 As shown, in an exemplary embodiment of the present utility model, a power transmission member 3 is disclosed. 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 used to electrically contact with the copper terminal 2 to achieve electrical connection between the conductor 30 and the copper terminal 2.

[0072] like Figure 3 and Figure 4 As shown, in the illustrated embodiment, a copper coating 6 a is also formed on the other surface of the flat end 31 of the conductor 30 , so that the copper terminal 2 is suitable for being electrically connected to either of the two surfaces of the flat end 31 of the conductor 30 .

[0073] like Figure 3 and Figure 4 As shown, in the illustrated embodiment, a connection hole 7a for allowing a bolt 4 to pass through is formed on 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 on the flat end 31 is in electrical contact with the copper terminal 2.

[0074] like Figure 3 and Figure 4As shown, in the illustrated embodiment, the connecting 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 relative to the bolt 4 in the length direction of the connecting hole 7a to absorb installation errors and / or manufacturing errors.

[0075] like Figure 3 and Figure 4 As shown, in the illustrated embodiment, the conductor 30 is a round conductor 30 or a flat conductor 30 .

[0076] like Figure 3 and Figure 4 As shown, in the illustrated embodiment, the power transmission element 3 further includes an insulating layer (not shown), which is wrapped around the outside of the conductor 30 .

[0077] like Figure 3 and Figure 4 As shown, in another exemplary embodiment of the present invention, an electrical connection assembly is also disclosed. 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 flat and is fastened to the flat end 31 of the 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 to be electrically connected to the conductor 30 via the copper coating 6a.

[0078] like Figure 3 and Figure 4 As shown, 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 flat end 31 of the conductor 30 and the one end 21 of the copper terminal 2 and is threadedly connected with 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.

[0079] like Figure 3 and Figure 4 As shown, in the illustrated embodiment, the other end 22 of the copper terminal 2 is in a cylindrical or columnar shape to mate with a matching terminal (not shown).

[0080] like Figure 3 and Figure 4 As shown, in another exemplary embodiment of the utility model, an electrical connection device is also disclosed. The electrical connection device includes: a housing and an electrical connection assembly. The copper terminal 2 of the electrical connection assembly is inserted into the housing for mating with a mating terminal.

[0081] like Figure 3 and Figure 4 As shown, in the illustrated embodiment, the electrical connection device is a charging base or a charging gun, and the copper terminal 2 is a charging terminal arranged in the charging base or the charging gun.

[0082] Third embodiment

[0083] Although not shown in the figure, in another exemplary embodiment of the present invention, a terminal is also disclosed, which has the same structure as the terminal except that the cold spray coating is different. Figure 1 and Figure 2 Terminal 1 shown is basically the same and can be referred to Figure 1 and Figure 2 Terminal 1 shown.

[0084] In an exemplary embodiment of the present invention, the terminal includes: a connecting end 11 and a welding end 12. The connecting end 11 is in the shape of a flat plate and is used to be electrically connected to the copper terminal 2. The welding end 12 is in the shape of a flat plate and is used to be welded to the conductor 30, which may be an aluminum conductor.

[0085] In an exemplary embodiment of the present invention, a nickel coating and a silver coating covering the nickel coating are formed on the surface of the connecting end 11 of the terminal by a cold coating process, and the silver coating on the connecting end 11 of the terminal is used to make electrical contact with the copper terminal 2 .

[0086] In another exemplary embodiment of the present invention, a nickel coating and a tin coating covering the nickel coating are formed on one surface of the connecting end 11 of the terminal by a cold coating process, and the tin coating on the connecting end 11 of the terminal is used for electrical contact with the copper terminal 2.

[0087] In another exemplary embodiment of the present invention, a nickel coating and a silver coating covering the nickel coating are formed on the surface of the welding end 12 of the terminal by a cold coating process, and the silver coating on the welding end 12 of the terminal is used for welding to the conductor 30 .

[0088] In another exemplary embodiment of the present invention, the aforementioned terminal may be a copper terminal or an aluminum terminal.

[0089] In another exemplary embodiment of the present invention, a connection hole 7a is formed on the connection end 11 of the terminal to allow the bolt 4 to pass through, 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 on the connection end 11 is in electrical contact with the copper terminal 2.

[0090] Fourth embodiment

[0091] Figure 5 and Figure 6 The fourth embodiment of the present invention is shown. Figure 5 A three-dimensional schematic diagram showing a terminal according to another exemplary embodiment of the utility model; Figure 6 A cross-sectional view showing a terminal according to another exemplary embodiment of the present invention.

[0092] like Figure 5 and Figure 6 As shown, in an exemplary embodiment of the present utility model, a terminal 1 is disclosed. The terminal 1 includes: a connecting end 11 and a welding end 12. The connecting end 11 of the terminal 1 is in the shape of a hollow cylinder, and is used to make electrical contact with an elastic contact member (not shown) inserted therein. The welding end 12 of the terminal 1 is in the shape of a flat plate, and is used to be welded to a conductor 30, for example, to a conductor 30 of a power transmission member 3.

[0093] like Figure 5 and Figure 6 As shown, in the illustrated embodiment, a nickel coating and a silver coating or a tin coating covering the nickel coating are formed on the inner circumferential surface 11a of the connecting end 11 of the terminal by a cold coating process, and the silver coating or the tin coating on the inner circumferential surface of the connecting end 11 of the terminal is used for electrical contact with the elastic contact piece.

[0094] like Figure 5 and Figure 6 As shown, in the illustrated embodiment, a nickel coating and a silver coating covering the nickel coating are formed on the surface 12a of the welding end 12 of the terminal by a cold coating process, and the silver coating on the welding end 12 of the terminal is used for welding to the conductor 30.

[0095] like Figure 5 and Figure 6 As shown, in the illustrated embodiment, the aforementioned terminal may be a copper terminal or an aluminum terminal.

[0096] Those skilled in the art will appreciate that the embodiments described above are exemplary and can be improved upon by those skilled in the art. The structures described in the various embodiments can be freely combined without causing any conflicts in structure or principle, and these changes should fall within the scope of protection of the present utility model.

[0097] 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 implementation modes of the present invention and should not be construed as limiting the present invention.

[0098] 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.

[0099] 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 number of the claims should not be construed as limiting the scope of the present invention.

Claims

1. A terminal, characterized in that: include: The connecting end (11) is in the form of a flat plate and has two surfaces facing each other in the thickness direction thereof, Features: The terminal (1) is an aluminum terminal, and a copper coating (6a) is formed on one surface of a connecting end (11) of the terminal (1) by a cold coating process, and the copper coating (6a) is used to electrically contact with a copper terminal (2) to achieve electrical connection between the terminal (1) and the copper terminal (2).

2. The terminal according to claim 1, characterized in that: 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 suitable for being electrically connected to any one of the two surfaces of the connection end (11) of the terminal (1).

3. The terminal according to claim 1, characterized in that: A connection hole (7a) is formed on the connection end (11) to allow a bolt (4) to pass through, 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) on the connection end (11) is in electrical contact with the copper terminal (2).

4. The terminal according to claim 3, characterized in that: The connecting 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 relative to the bolt (4) in the length direction of the connecting hole (7a) to absorb installation errors and / or manufacturing errors.

5. The terminal according to claim 1, characterized in that: Circular chamfers are formed on both sides of the connection end (11) of the terminal (1) in the width direction to allow the connection end (11) of the terminal (1) to pass through a through hole on a housing of an electrical connection device.

6. The terminal according to any one of claims 1 to 5, characterized in that: Also includes: A welding end (12) for welding to a conductor (30) of a power transmission member (3), The connecting end (11) and the welding end (12) are respectively located at two longitudinal ends of the terminal (1).

7. The terminal according to claim 6, characterized in that: The welding end (12) is in the shape of a flat plate and is parallel to the connecting end (11), and the terminal (1) further comprises an intermediate plate portion (13) extending obliquely between the connecting end (11) and the welding end (12), so that the terminal (1) is in a Z shape.

8. The terminal according to claim 1, characterized in that: The terminal (1) is an integrated stamping part.

9. An electrical connection assembly, characterized in that: include: The terminal (1) according to any one of claims 1 to 8; and A copper terminal (2) having one end (21) which is flat and is 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) on the connection end (11) of the terminal (1) to be electrically connected to the terminal (1) via the copper coating (6a).

10. The electrical connection assembly according to claim 9, characterized in that: Also includes: A nut (5) fixed to one end (21) of the copper terminal (2); and A bolt (4) passes through the connection end (11) of the terminal (1) and one end (21) of the copper terminal (2) and is threadedly connected to the nut (5). One end (21) of the copper terminal (2) is fastened to the connecting end (11) of the terminal (1) by means of the bolt (4) and the nut (5).

11. The electrical connection assembly according to claim 9, characterized in that: The other end (22) of the copper terminal (2) is in a cylindrical or columnar shape so as to mate with a matching terminal.

12. The electrical connection assembly according to claim 9, characterized in that: Also includes: The power transmission element (3) comprises: A conductor (30), one end of which is welded to the welding end (12) of the terminal (1); and An insulating layer, wrapped around the outside of the conductor (30), The power transmission member (3) is electrically connected to the copper terminal (2) via the terminal (1).

13. The electrical connection assembly according to claim 12, characterized in that: 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 element, comprising: a conductor (30), the conductor (30) being an aluminum conductor and having a flat end (31), Features: 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 used to electrically contact with the copper terminal (2) to achieve electrical connection between the conductor (30) and the copper terminal (2).

15. The power transmission element according to claim 14, characterized in that: 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 suitable for being electrically connected to either of the two surfaces of the flat end (31) of the conductor (30).

16. The power transmission element according to claim 14, characterized in that: A connection hole (7a) is formed on the flat end (31) to allow a bolt (4) to pass through, 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) on the flat end (31) is in electrical contact with the copper terminal (2).

17. The power transmission element according to claim 16, characterized in that: 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 relative to the bolt (4) in the length direction of the connection hole (7a) to absorb installation errors and / or manufacturing errors.

18. The power transmission element according to claim 14, characterized in that: The conductor (30) is a round conductor (30) or a flat conductor (30).

19. The power transmission member according to claim 14, characterized in that: Also includes: An insulating layer is wrapped around the outside of the conductor (30).

20. An electrical connection assembly, characterized in that: include: The power transmission element (3) according to any one of claims 14 to 19; and a copper terminal (2) having one end (21) which is flat and is fastened to the flat end (31) of the 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) to be electrically connected to the conductor (30) via the copper coating (6a).

21. The electrical connection assembly according to claim 20, characterized in that: Also includes: A nut (5) fixed to one end (21) of the copper terminal (2); and A bolt (4) passes through the flat end (31) of the conductor (30) and one end (21) of the copper terminal (2) and is threadedly connected to the nut (5). One end (21) of the copper terminal (2) is fastened to the flat end (31) of the conductor (30) by means of the bolt (4) and the nut (5).

22. The electrical connection assembly according to claim 20, characterized in that: The other end (22) of the copper terminal (2) is in a cylindrical or columnar shape so as to mate with a matching terminal.

23. An electrical connection device, characterized in that: include: case; and The electrical connection assembly according to any one of claims 9 to 13 and 20 to 22, wherein the copper terminal (2) is inserted into the housing for mating with a mating terminal.

24. The electrical connection device according to claim 23, characterized in that: The electrical connection device is a charging seat or a charging gun, and the copper terminal (2) is a charging terminal arranged in the charging seat or the charging gun.

25. A terminal, characterized in that: include: A connecting end (11) in the form of a flat plate, used for electrically connecting to the copper terminal (2); and The welding end (12) is in the form of a flat plate and is used for welding to the conductor (30). A nickel coating and a silver coating or a tin coating covering the nickel coating are formed on the surface of the connecting end (11) of the terminal by a cold coating process, and the silver coating or the tin coating on the connecting end (11) of the terminal is used for electrically contacting with the copper terminal (2). A nickel coating and a silver coating covering the nickel coating are formed on one surface of the welding end (12) of the terminal by a cold coating process, and the silver coating on the welding end (12) of the terminal is used for welding to the conductor (30).

26. The terminal according to claim 25, characterized in that: The terminal is a copper terminal or an aluminum terminal.

27. The terminal according to claim 25, characterized in that: A connection hole (7a) is formed on the connection end (11) to allow a bolt (4) to pass through, 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 the tin coating on the connection end (11) is in electrical contact with the copper terminal (2).

28. A terminal, characterized in that: include: The connecting end (11) is in the shape of a hollow cylinder and is used for making electrical contact with the inserted elastic contact piece; and The welding end (12) is in the form of a flat plate and is used for welding to the conductor (30). A nickel coating and a silver coating or a tin coating covering the nickel coating are formed on the inner circumferential surface (11a) of the connecting end (11) of the terminal by a cold coating process, and the silver coating or the tin coating on the inner circumferential surface (11a) of the connecting end (11) of the terminal is used for electrical contact with the elastic contact piece. A nickel coating and a silver coating covering the nickel coating are formed on one surface (12a) of the welding end (12) of the terminal by a cold coating process, and the silver coating on the welding end (12) of the terminal is used for welding to the conductor (30).

29. The terminal according to claim 28, characterized in that: The terminal is a copper terminal or an aluminum terminal.

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