Current-carrying terminal, preparation method thereof and charging seat

Abstract

The invention relates to a current-carrying terminal, a preparation method thereof and a charging seat. The current-carrying terminal comprises a first connecting piece, a second connecting piece assembled with the first connecting piece in a split mode, a first plating layer wrapping the first connecting piece, and a second plating layer wrapping the periphery of the first plating layer on the contact part. The contact resistance of the second plating layer is smaller than that of the first plating layer. The first connecting piece and the second connecting piece can be prepared by adopting different processes, so that the loss of production materials is reduced, and the production cost is reduced. The contact performance of the current-carrying terminal is improved through the second plating layer, the corrosion resistance of the first connecting piece is improved through the first plating layer, the second plating layer is stably attached to the first plating layer through the attachment performance of the first plating layer, and the second plating layer is prevented from being scraped off in the plugging and unplugging process. The first connecting piece and the second connecting piece are assembled in a split mode, the second connecting piece does not need to be electroplated together with the first connecting piece, the first connecting piece is electroplated through the continuous plating technology, and the requirement that only the contact part is electroplated with the second plating layer can be met.

Description

Technical Field

[0001] This application relates to the field of charging technology, specifically to a current-carrying terminal and its preparation method, and a charging socket. Background Technology

[0002] Currently, terminals inside new energy vehicle charging sockets are manufactured using machining processes. However, in actual production, machining terminals suffers from drawbacks such as high material consumption, long processing time, the need for complete replacement in case of malfunction, high terminal production costs, and poor cost control for the charging socket. To improve the contact performance of the terminal spring contacts, silver plating is required. Since machined terminals are discrete, continuous plating processes are not feasible. Furthermore, the spring contacts on the terminals collide and deform during barrel plating, affecting terminal performance. Therefore, machined terminals are generally electroplated using rack plating. Rack plating typically involves manually installing or binding the machined terminals one by one onto a fixture, resulting in long processing times, low production efficiency, and high costs. Additionally, rack plating applies silver not only to the spring contacts but also to areas outside the spring contacts, leading to excessively high silver plating costs and making it unsuitable for applications requiring silver plating only at the spring contact locations. Summary of the Invention

[0003] The purpose of this application is to provide a current-carrying terminal and its preparation method, as well as a charging base, which can solve the problems of high material consumption, long processing time, the need to replace the whole terminal when problems occur, and high terminal production cost of machined terminals, as well as the problems of long time consumption, low production efficiency, high cost, and inability to meet the requirement of silver plating only at the spring position of machined terminals.

[0004] To address the aforementioned problems, this application provides a current-carrying terminal having a first direction. The current-carrying terminal includes: a first connector comprising a first body and a plurality of spring contacts disposed at one end of the first body, the first body extending along the first direction, the plurality of spring contacts being spaced apart circumferentially along the first body, each spring contact including a contact portion and a non-contact portion connecting the contact portion and the first body; a second connector separately assembled from the first connector, the second connector and the first connector being arranged along the first direction; a first plating layer covering the first connector; and a second plating layer covering the outer periphery of the first plating layer on the contact portion; wherein the contact resistance of the second plating layer is less than the contact resistance of the first plating layer.

[0005] To address the aforementioned problems, this application also provides a method for preparing a current-carrying terminal, comprising the following steps: stamping a first raw material using a stamping process to form a first connector including a first body and a plurality of spring pieces, each spring piece including a contact portion and a non-contact portion connected between the contact portion and the first body; forming a first plating layer covering the first connector using a continuous plating process; forming a second plating layer covering the outer periphery of the first plating layer on the contact portion using a continuous plating process; cold-forging a second raw material using a cold-forging process to form a second connector including a wiring portion, a connecting portion, and a second body, the second body including a first end and a second end disposed on the side of the first end away from the connecting portion; forming a third plating layer covering the second connector using a barrel plating process; embedding the second end of the second connector into the first body to separately assemble the second connector and the first connector; and fitting a sealing ring on the outer periphery of the first body near the first end and the outer periphery of the first end near the first body.

[0006] To address the aforementioned issues, this application also provides a charging dock, including the current-carrying terminal of this application.

[0007] The first and second connectors of the current-carrying terminal of this application are assembled separately, which allows for partial replacement when the current-carrying terminal fails. The first and second connectors can also be manufactured using different processes. Compared with machining processes for manufacturing current-carrying terminals, this can reduce the consumption of production materials, shorten the production time, improve the production efficiency, and reduce the production cost of current-carrying terminals.

[0008] This application employs a continuous plating process to coat the first connector with a first plating layer, and a continuous plating process to coat the outer periphery of the first plating layer on the contact portion with a second plating layer. The second plating layer improves the contact performance of the current-carrying terminal, the first plating layer improves the corrosion resistance of the first connector, and the excellent adhesion properties of the first plating layer ensure that the second plating layer is stably attached to the first plating layer, preventing the second plating layer from being scratched off during insertion and removal.

[0009] The first connector and the second connector of the current-carrying terminal of this application are assembled separately. The second connector does not need to be electroplated together with the first connector and can be electroplated separately. The first connector is electroplated using a continuous plating process, which can meet the requirement of electroplating the second plating only on the contact part. While using the second plating to improve the contact performance of the current-carrying terminal, the coverage area of ​​the second plating on the current-carrying terminal is reduced, thereby reducing the electroplating cost of the current-carrying terminal. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of the current-carrying terminal according to an embodiment of this application;

[0012] Figure 2 This is an exploded view of the current-carrying terminal according to an embodiment of this application;

[0013] Figure 3 of Figure 1 A schematic diagram of the AA cross-section;

[0014] Figure 4 yes Figure 3 An enlarged view of the dashed box C;

[0015] Figure 5 This is a schematic diagram of the structure of the second connector and the third coating in an embodiment of this application;

[0016] Figure 6 This is a schematic diagram of the structure of the first connector before the formation of the first and second coatings in an embodiment of this application.

[0017] Explanation of reference numerals in the attached figures:

[0018] 100. Current carrying terminal;

[0019] 1. First connector; 2. Second connector; 3. First plating layer; 4. Second plating layer; 5. Third plating layer; 6. Sealing ring;

[0020] 11. First body; 12. Spring piece; 111. Central axis; 121. Contact part; 122. Non-contact part; 1211. First surface; 1212. Second surface; 123. The side surface;

[0021] 21. Wiring part; 22. Connecting part; 23. Second body; 231. First end; 232. Second end; 233. Step surface. Detailed Implementation

[0022] The preferred embodiments of this application are described in detail below with reference to the accompanying drawings to fully introduce the technical content of this application to those skilled in the art, to demonstrate that this application can be implemented, and to make the disclosed technical content of this application clearer, so that those skilled in the art can more easily understand how to implement this application. However, this application can be embodied in many different forms of embodiments, and the protection scope of this application is not limited to the embodiments mentioned herein. The description of the embodiments below is not intended to limit the scope of this application.

[0023] The directional terms used in this application, such as "up", "down", "front", "back", "left", "right", "inside", "outside", and "side", are only for the directions shown in the accompanying drawings. The directional terms used herein are for the purpose of explaining and illustrating this application, and not for limiting the scope of protection of this application.

[0024] In the accompanying drawings, components with the same structure are indicated by the same numerical designation, and components with similar structures or functions are indicated by similar numerical designations. Furthermore, for ease of understanding and description, the dimensions and thicknesses of each component shown in the drawings are arbitrary, and this application does not limit the dimensions and thicknesses of each component.

[0025] Example 1

[0026] Please see Figures 1-5 , Figure 1 This is a schematic diagram of the structure of the current-carrying terminal according to an embodiment of this application; Figure 2 This is an exploded view of the current-carrying terminal according to an embodiment of this application; Figure 3 of Figure 1 A schematic diagram of the AA cross-section; Figure 4 yes Figure 3 An enlarged view of point B within the dashed box; Figure 5 This is a schematic diagram of the structure of the second connector and the third plating layer according to an embodiment of this application. This embodiment provides a current-carrying terminal 100. The current-carrying terminal 100 has a first direction M and includes a first connector 1, a second connector 2, a first plating layer 3, a second plating layer 4, a third plating layer 5, and a sealing ring 6.

[0027] Please see Figures 1-5 The first connector 1 includes a first body 11 and a plurality of spring contacts 12. In this embodiment, the first connector 1 is made of copper alloy; in other embodiments, the first connector 1 may also be made of other conductive materials.

[0028] The first body 11 extends along the first direction M. Specifically, the first body 11 is annular and has a central axis 111, which extends along the first direction M.

[0029] A plurality of spring pieces 12 are disposed at the end of the first body 11 away from the second connector 2, and the plurality of spring pieces 12 are spaced apart circumferentially along the first body 11. Specifically, the plurality of spring pieces 12 are spaced apart circumferentially along the central axis 111. Each spring piece 12 includes a contact portion 121 and a non-contact portion 122 connecting the contact portion 121 and the first body 11. Figure 2 and Figure 4 The contact portion 121 and the non-contact portion 122 are distinguished by a dividing line B. The contact portion 121 is in direct contact with the male current-carrying terminals such as the charging gun, while the non-contact portion 122 is not in direct contact with the male current-carrying terminals such as the charging gun.

[0030] The ratio of the size of the contact portion 121 in the first direction M to the size of the spring piece 12 in the first direction M ranges from 25% to 35%, and the size of the contact portion 121 in the first direction M ranges from 6mm to 10mm. In this embodiment, the ratio of the size of the contact portion 121 in the first direction M to the size of the spring piece 12 in the first direction M is 30%, and the size of the contact portion 121 in the first direction M is 8mm.

[0031] Please see Figures 1-5 The second connector 2 is assembled separately from the first connector 1. The first connector 1 and the second connector 2 are arranged along the first direction M. It is worth noting that the separate assembly of the second connector 2 and the first connector 1 means that the first connector 1 and the second connector 2 were originally two independent parts, which are subsequently detachably connected or fixedly connected together. In this embodiment, the second connector 2 is made of copper alloy. In other embodiments, the second connector 2 may also be made of other conductive materials.

[0032] The second connector 2 of this application is assembled separately from the first connector 1. When the current-carrying terminal 100 malfunctions, it can be partially replaced. Furthermore, the first connector 1 and the second connector 2 can be manufactured using different processes. Compared to the integral current-carrying terminal manufactured by machining in the prior art, this reduces the material consumption in the production of the current-carrying terminal 100, shortens the production time, improves the production efficiency of the current-carrying terminal 100, and reduces the production cost of the current-carrying terminal 100. Specifically, in this embodiment, the first connector 1 is manufactured by stamping, and the second connector 2 is manufactured by cold heading. In other embodiments, the first connector 1 can also be manufactured by stamping, and the second connector 2 can be manufactured by machining.

[0033] Please see Figure 1 and Figure 3The second connector 2 is at least partially embedded within the first body 11. In some embodiments, the first connector 1 can be connected to the second connector 2 by riveting, welding, or both riveting and welding.

[0034] Please see Figure 2 , Figure 3 and Figure 5 The second connector 2 includes: a wiring part 21, a connecting part 22, and a second body 23.

[0035] The wiring section 21 is connected to a wire (not shown). In new energy vehicles, one end of the wire is electrically connected to the wiring section 21, and the other end of the wire is electrically connected to the battery pack (not shown).

[0036] The connecting part 22 is located at the end of the wiring part 21 near the first connecting member 1.

[0037] The second body 23 is disposed at the end of the connecting portion 22 near the first connecting member 1. The second body 23 includes a first end portion 231 and a second end portion 232. The second end portion 232 is disposed on the side of the first end portion 231 away from the connecting portion 22, and is embedded in the first body 11. The outer diameter of the second end portion 232 is less than or equal to the inner diameter of the first body 11. It is worth noting that the statement that the outer diameter of the second end portion 232 is less than or equal to the inner diameter of the first body 11 means that after the second end portion 232 is embedded in the first body 11, the outer diameter of the second end portion 232 is less than or equal to the inner diameter of the first body 11. Specifically, when the first connecting member 1 can be connected to the second connecting member 2 by riveting, before the second end portion 232 is embedded in the first body 11, the outer diameter of the second end portion 232 is greater than the inner diameter of the first body 11, and after the second end portion 232 is embedded in the first body 11, the outer diameter of the second end portion 232 is equal to the inner diameter of the first body 11. When the first connector 1 is connected to the second connector 2 by welding, before and after the second end 232 is embedded in the first body 11, the outer diameter of the second end 232 is less than or equal to the inner diameter of the first body 11, which makes it easier for the second end 232 to be embedded in the first body 11.

[0038] Please see Figure 2 , Figure 3 and Figure 5The outer diameter of the second end 232 is smaller than the outer diameter of the first end 231. A stepped surface 233 is formed at the connection between the first end 231 and the second end 232, and the first body 11 abuts against the stepped surface 233. It is worth noting that since the second connector 2 has a third plating layer 5 on its outer periphery, the first body 11 abutting against the stepped surface 233 means that the first body 11 abuts against the third plating layer 5 on the stepped surface 233. The outer peripheral surface of the first body 11 is flush with the outer peripheral surface of the first end 231. In this embodiment, the outer diameter of the first body 11 is the same as the outer diameter of the first end 231, and the central axis 111 of the first body 11 coincides with the central axis of the first end 231, so that the outer peripheral surface of the first body 11 is flush with the outer peripheral surface of the first end 231. When the first connector 1 and the second connector 2 are welded together, the outer peripheral surface of the first body 11 is flush with the outer peripheral surface of the first end 231, which facilitates welding.

[0039] Please see Figure 2 , Figure 3 and Figure 5 The outer diameter of the first end 231 is smaller than the outer diameter of the connecting part 22, so the connecting part 22 can be used to limit the current-carrying terminal 100 in the charging socket.

[0040] Wherein, the sum of the dimensions of the first end 231 and the second end 232 in the first direction M ranges from 17mm to 23mm, and the dimension of the second end 232 in the first direction M ranges from 9mm to 15mm. In this embodiment, the sum of the dimensions of the first end 231 and the second end 232 in the first direction M is 20mm, and the dimension of the second end 232 in the first direction M is 12mm.

[0041] The first plating layer 3 covers the first connector 1. Specifically, the first plating layer 3 covers the first body 11, the contact portion 121, and the non-contact portion 122. In this embodiment, the first plating layer 3 completely covers the outer periphery of the first body 11, the contact portion 121, and the non-contact portion 122.

[0042] Please see Figure 6 , Figure 6 This is a schematic diagram of the structure of the first connector before the formation of the first and second plating layers according to an embodiment of this application. The second plating layer 4 covers the outer periphery of the first plating layer 3 on the contact portion 121. Specifically, the contact portion 121 has a first surface 1211 facing the central axis 111, a second surface 1212 facing away from the central axis 111, and a side surface 123 connecting the first surface 1211 and the second surface 1212. The first plating layer 3 and the second plating layer 4 are all provided on the first surface 1211, the second surface 1212, and the side surface 123. That is, the second plating layer 4 completely covers the outer periphery of the first plating layer 3 on the contact portion 121.

[0043] The first plating layer 3 is made of one or more of the following materials: nickel, cadmium, manganese, zirconium, cobalt, tin, titanium, chromium, gold, zinc, tin-lead alloy, palladium, and palladium-nickel alloy. The second plating layer 4 is made of one or more of the following materials: nickel, cadmium, manganese, zirconium, cobalt, tin, titanium, chromium, gold, silver, zinc, tin-lead alloy, silver-antimony alloy, palladium, palladium-nickel alloy, graphite silver, graphene silver, hard silver, and silver-gold-zirconium alloy. In this embodiment, the first plating layer 3 is made of nickel, and the second plating layer 4 is made of silver. The first plating layer 3 and the second plating layer 4 are manufactured using a continuous plating process. Compared to the existing technology where machining processes for current-carrying terminals can only be used for overall silver plating, this method satisfies the requirement of plating the second plating layer only on the contact area. While utilizing the second plating layer to improve the contact performance of the current-carrying terminal, it reduces the coverage area of ​​the second plating layer on the current-carrying terminal, thereby reducing the plating cost of the current-carrying terminal.

[0044] The contact resistance of the second plating layer 4 is less than that of the first plating layer 3. Therefore, the contact performance of the current-carrying terminal 100 can be improved by using the second plating layer 4, thereby improving the contact performance between the current-carrying terminal 100 and the male current-carrying terminals such as the charging gun.

[0045] The corrosion resistance of the first coating 3 is higher than that of the second coating 4, thereby the corrosion resistance of the current-carrying terminal 100 can be improved by using the first coating 3.

[0046] In this embodiment, the adhesion performance of the first plating layer 3 is higher than that of the second plating layer 4. Since the material of the first connector 1 is copper alloy, compared with the second plating layer 4 being directly plated on the spring piece 12, the excellent adhesion performance of the first plating layer 3 allows the second plating layer 4 to be stably attached to the first plating layer 3, preventing the second plating layer from being scratched off during the insertion and removal process.

[0047] Please see Figure 2 , Figure 3 and Figure 5 The third plating layer 5 covers the second connector 2. Specifically, the third plating layer 5 covers the wiring portion 21, the connecting portion 22, and the second body 23. The third plating layer 5 improves the corrosion resistance and contact performance of the second connector 2. The material of the third plating layer 5 includes one or more of nickel, cadmium, manganese, zirconium, cobalt, tin, titanium, chromium, gold, zinc, tin-lead alloy, palladium, and palladium-nickel alloy. In this embodiment, the material of the third plating layer 5 is nickel. Using nickel to form the third plating layer 5 reduces the electroplating cost of the current-carrying terminal 100 compared to the prior art where the current-carrying terminal can only be plated with silver as a whole during machining. In this embodiment, the third plating layer 5 is formed on the outer periphery of the wiring portion 21, the connecting portion 22, and the second body 23 using a barrel plating process. In other embodiments, other processes can also be used to form the third plating layer 5.

[0048] Please see Figures 1-3The sealing ring 6 is sleeved on the outer periphery of the end of the first body 11 near the first end 231, and also on the outer periphery of the end of the first end 231 near the first body 11. In other words, the sealing ring is sleeved on the outer periphery of the connection position between the first body 11 and the first end 231. The sealing ring 6 can protect the connection position between the first body 11 and the first end 231, prevent moisture from entering the first body 11 and the first end 231, and improve the connection performance between the first body 11 and the first end 231.

[0049] In some embodiments, this application also provides a method for preparing a current-carrying terminal 100, comprising the following steps: stamping a first raw material using a stamping process to form a first connector 1 including a first body 11 and a plurality of spring pieces 12, each spring piece 12 including a contact portion 121 and a non-contact portion 122 connected between the contact portion 121 and the first body 11; forming a first plating layer 3 covering the first connector 1 using a continuous plating process; forming a second plating layer 4 covering the outer periphery of the first plating layer 3 on the contact portion 121 using a continuous plating process; and cold-forging a second raw material using a cold-forging process to form a connector including a wiring terminal. The second connector 2 of the first body 11 includes a first end 231 and a second end 232 disposed on the side of the first end 231 away from the connecting part 22. A third plating layer 5 is formed covering the second connector 2 using a barrel plating process. The second end 232 of the second connector 2 is embedded into the first body 11 to assemble the second connector 2 and the first connector 1 separately. A sealing ring 6 is fitted on the outer periphery of the first body 11 near the first end 231 and the outer periphery of the first end 231 near the first body 11 using an injection molding process. In this embodiment, the first raw material is a copper alloy plate and the second raw material is a copper alloy rod.

[0050] In some embodiments, this application also provides a charging dock, including the current-carrying terminal 100 of this application. The charging dock can be a charging dock for a new energy electric vehicle.

[0051] The above provides a detailed description of a current-carrying terminal and its preparation method, as well as a charging base, provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A current-carrying terminal (100), characterized in that, The current-carrying terminal (100) has a first direction (M), and the current-carrying terminal (100) includes: The first connector (1) includes a first body (11) and a plurality of spring pieces (12) disposed at one end of the first body (11). The first body (11) extends along the first direction (M). The plurality of spring pieces (12) are arranged circumferentially spaced along the first body (11). Each spring piece (12) includes a contact portion (121) and a non-contact portion (122) connected between the contact portion (121) and the first body (11). The second connector (2) is assembled separately from the first connector (1), and the second connector (2) and the first connector (1) are arranged along the first direction (M); A first plating layer (3) covers the first connector (1); and The second coating (4) covers the outer periphery of the first coating (3) on the contact portion (121); The contact resistance of the second coating (4) is less than that of the first coating (3).

2. The current-carrying terminal (100) according to claim 1, characterized in that, The first body (11) has a central axis (111), and a plurality of the spring pieces (12) are arranged circumferentially along the central axis (111); The contact portion (121) has a first surface (1211) facing the central axis (111), a second surface (1212) facing away from the central axis (111), and a side surface (123) connecting the first surface (1211) and the second surface (1212); The first coating (3) and the second coating (4) are provided on the first surface (1211), the second surface (1212) and the side surface (123).

3. The current-carrying terminal (100) according to claim 1, characterized in that, The first coating (3) and the second coating (4) are made by a continuous plating process.

4. The current-carrying terminal (100) according to claim 1, characterized in that, The corrosion resistance of the first coating (3) is higher than that of the second coating (4).

5. The current-carrying terminal (100) according to claim 1, characterized in that, The adhesion performance of the first coating (3) is higher than that of the second coating (4).

6. The current-carrying terminal (100) according to claim 1, characterized in that, The material of the first coating (3) includes one or more of nickel, cadmium, manganese, zirconium, cobalt, tin, titanium, chromium, gold, zinc, tin-lead alloy, palladium and palladium-nickel alloy; The material of the second coating (4) includes one or more of the following: nickel, cadmium, manganese, zirconium, cobalt, tin, titanium, chromium, gold, silver, zinc, tin-lead alloy, silver-antimony alloy, palladium, palladium-nickel alloy, graphite silver, graphene silver, hard silver, and silver-gold-zirconium alloy.

7. The current-carrying terminal (100) according to claim 1, characterized in that, The second connector (2) is at least partially embedded within the first body (11).

8. The current-carrying terminal (100) according to claim 7, characterized in that, The second connector (2) includes: The wiring section (21) is connected to the wire; A connecting portion (22) is disposed at one end of the wiring portion (21) near the first connector (1); and The second body (23) is disposed at one end of the connecting part (22) near the first connecting member (1); The second body (23) includes a first end (231) and a second end (232) disposed on the side of the first end (231) away from the connecting portion (22). The second end (232) is embedded in the first body (11), and the outer diameter of the second end (232) is less than or equal to the inner diameter of the first body (11).

9. The current-carrying terminal (100) according to claim 8, characterized in that, The outer diameter of the second end (232) is smaller than the outer diameter of the first end (231). A stepped surface (233) is formed at the connection between the first end (231) and the second end (232). The first body (11) abuts against the stepped surface (233). The outer peripheral surface of the first body (11) is flush with the outer peripheral surface of the first end (231).

10. The current-carrying terminal (100) according to claim 8, characterized in that, The outer diameter of the first end (231) is smaller than the outer diameter of the connecting part (22).

11. The current-carrying terminal (100) according to claim 8, characterized in that, Also includes: The third coating (5) covers the second connector (2); The material of the third coating (5) includes one or more of nickel, cadmium, manganese, zirconium, cobalt, tin, titanium, chromium, gold, zinc, tin-lead alloy, palladium, and palladium-nickel alloy.

12. The current-carrying terminal (100) according to claim 8, characterized in that, The current-carrying terminal (100) also includes: A sealing ring (6) is fitted on the outer periphery of the first body (11) near the first end (231), and on the outer periphery of the first end (231) near the first body (11).

13. A method for preparing a current-carrying terminal (100) according to any one of claims 1-12, characterized in that, Includes the following steps: A first connector (1) comprising a first body (11) and a plurality of spring pieces (12) is formed by stamping the first raw material using a stamping process. Each spring piece (12) includes a contact portion (121) and a non-contact portion (122) connected between the contact portion (121) and the first body (11). A first plating layer (3) covering the first connector (1) is formed using a continuous plating process. A second plating layer (4) covering the outer periphery of the first plating layer (3) on the contact portion (121) is formed using a continuous plating process. A second connector (2) is formed by cold heading of the second raw material, including a wiring part (21), a connecting part (22), and a second body (23). The second body (23) includes a first end (231) and a second end (232) disposed on the side of the first end (231) away from the connecting part (22). A third plating layer (5) is formed covering the second connector (2) by a barrel plating process. The second end (232) of the second connector (2) is embedded into the first body (11) to separate and assemble the second connector (2) and the first connector (1); A sealing ring (6) is fitted around the outer periphery of the first body (11) near the first end (231) and around the outer periphery of the first end (231) near the first body (11).

14. A charging stand, characterized in that, Includes the current-carrying terminal (100) as described in any one of claims 1-12.

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