A copper bar structure based on local nickel plating
By designing a copper busbar structure with partial nickel plating, the problems of insufficient corrosion resistance and welding performance of copper busbars in specific applications were solved, achieving precise electroplating and stable fastening, and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO YADA METAL SURFACE TREATMENT
- Filing Date
- 2025-05-06
- Publication Date
- 2026-07-07
AI Technical Summary
Existing copper busbars are insufficient to meet the requirements for enhanced corrosion resistance, improved welding performance, or improved contact resistance in certain specific applications, and common surface treatment processes cannot precisely control the location and effect of local treatment.
Design a copper busbar structure based on localized nickel plating, including one-piece molded hook-shaped first and second connecting parts, with strip-shaped protrusions and joints. Localized nickel plating is achieved through external extrusion molding and electroplating processes. The electroplating area is precisely controlled by a rubber mask, and the position is fixed by a pressure ring.
It achieves high practicality and fastening effect of copper busbar structure, simplifies manufacturing process, reduces cost, is easy to promote and use, and meets special performance requirements.
Smart Images

Figure CN224472731U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of copper busbar structures, and more specifically to copper busbar structures based on localized nickel plating. Background Technology
[0002] Copper busbars are widely used in new energy vehicles, playing a crucial role in transmitting current and connecting electrical equipment due to their excellent conductivity. However, in certain specific applications, there are special requirements for the surface properties of copper busbars. For example, in situations requiring enhanced corrosion resistance, improved weldability, or reduced contact resistance, ordinary copper busbars are insufficient. Furthermore, current common copper busbar surface treatment methods may not be able to precisely control the location and effect of localized treatments, resulting in the treated copper busbars not achieving their ideal state in actual use. Therefore, an irregularly shaped copper sheet structure with an added positioning structure is provided to ensure that the localized surface treatment of the copper sheet is fully covered. Simultaneously, this positioning structure stabilizes the copper busbar structure during installation. Therefore, there is a need for a simple, practical, and securely fastened copper busbar structure based on localized nickel plating. Utility Model Content
[0003] The main objective of this application is to provide a copper busbar structure based on partial nickel plating, wherein the copper busbar structure based on partial nickel plating can effectively utilize its own structural configuration to achieve the advantages of high practicality and secure fastening.
[0004] Another objective of this application is to provide a copper busbar structure based on partial nickel plating, wherein the copper busbar structure based on partial nickel plating includes a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are integrally formed, and the first connecting portion and the second connecting portion are hook-shaped, and the connection between the first connecting portion and the second connecting portion also has a strip-shaped protrusion, wherein the strip-shaped protrusion can divide the first connecting portion and the second connecting portion, so as to facilitate precise processing of the surface of the second connecting portion, and at the same time, during the installation of the copper busbar, the strip-shaped protrusion can cooperate with the external structure to stabilize the copper busbar.
[0005] Another objective of this application is to provide a copper busbar structure based on partial nickel plating, wherein the copper busbar structure based on partial nickel plating is simple in structure, easy to operate, does not involve complex manufacturing processes and expensive materials, has high economic efficiency, and is easy to promote and use.
[0006] To achieve at least one of the above-mentioned objectives, this application provides a copper busbar structure based on partial nickel plating, wherein the copper busbar structure based on partial nickel plating includes:
[0007] A first connecting part and a second connecting part are integrally formed, and the first connecting part and the second connecting part are hook-shaped, and the connection between the first connecting part and the second connecting part also has a strip-shaped protrusion.
[0008] In one or more embodiments of this application, the end of the first connecting portion away from the second connecting portion further has two connector portions, the two connector portions being disposed opposite to each other and spaced apart by a predetermined distance.
[0009] In one or more embodiments of this application, the end of the first connecting portion having the connector portion further has a U-shaped groove, and the two connector portions are located on both sides of the U-shaped groove.
[0010] In one or more embodiments of this application, each of the connector portions has an extension portion and a bend portion, the extension portion being connected to the bend portion, and the end of the extension portion facing away from the bend portion being connected to the end of the first connecting portion having the U-shaped groove.
[0011] In one or more embodiments of this application, the distance between the two connecting portions is greater than the distance between the two bending portions.
[0012] In one or more embodiments of this application, the copper busbar structure based on partial nickel plating further has two strip grooves, the two strip grooves are located on both sides of the strip protrusion, and the distance between each strip groove and the strip protrusion is the same.
[0013] In one or more embodiments of this application, the second connecting portion further has a mounting hole that penetrates the second connecting portion, and the periphery of the mounting hole also has an annular mating groove, and a pressure ring is also placed in the annular mating groove, with one end of the pressure ring placed in the annular mating groove and the other end placed on the outside. Attached Figure Description
[0014] These and / or other aspects and advantages of this application will become clearer and more readily understood from the following detailed description of embodiments of this application taken in conjunction with the accompanying drawings, wherein:
[0015] Figure 1 The figure shows a schematic diagram of a copper busbar structure based on partial nickel plating.
[0016] Figure 2 The figure shows a partial structural diagram of a copper busbar structure based on localized nickel plating. Detailed Implementation
[0017] The terms and words used in the following specification and claims are not limited to their literal meaning, but are used solely by the inventors to enable a clear and consistent understanding of this application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of this application is provided for illustrative purposes only and not for the purpose of limiting the application as defined in the appended claims and their equivalents.
[0018] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.
[0019] While ordinal numbers such as "first," "second," etc., will be used to describe various components, there is no limitation on which components are used herein. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component, without departing from the teachings of the utility model concept. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0020] The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. It will also be understood that the terms “comprising” and / or “having” as used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.
[0021] refer to Figures 1 to 2 According to a preferred embodiment of the present invention, a copper busbar structure based on partial nickel plating is described, wherein the structure of the copper busbar structure based on partial nickel plating is as follows: Figure 1 As shown, it is used in new energy vehicles. There are many existing copper plate structures, and they generally adopt a rectangular bending structure. This application provides an irregular copper plate structure to meet the customer's needs for different copper plate structures.
[0022] Specifically, the copper busbar structure based on partial nickel plating has a copper busbar body, which has a first connecting portion 10 and a second connecting portion 20. The first connecting portion 10 and the second connecting portion 20 are integrally formed and are hook-shaped. It should be noted that the aforementioned copper busbar structure based on partial nickel plating uses an irregularly shaped copper busbar with a thickness of 3mm and a width of 30mm.
[0023] Specifically, the end of the first connecting portion 10 opposite to the second connecting portion 20 also has two connector portions 30, which are arranged opposite to each other and spaced apart by a predetermined distance. It should also be noted that the end of the first connecting portion 10 with the connector portions 30 also has a U-shaped groove 100, and the two connector portions 30 are located on both sides of the U-shaped groove 100.
[0024] Each of the connector portions 30 has an extension portion 31 and a bending portion 32. The extension portion 31 is connected to the bending portion 32, and the end of the extension portion 31 facing away from the bending portion 32 is also connected to the end of the first connecting portion 10 where the U-shaped groove 100 is provided. It is worth mentioning that the connector portions 30 are also provided with a predetermined bending angle, and the distance between the two connector portions 30 is greater than the distance between the two bending portions 32.
[0025] It is worth mentioning that the connection between the first connecting part 10 and the second connecting part 20 also has a strip-shaped protrusion 40, and the copper busbar structure based on partial nickel plating also has two strip grooves 200. The two strip grooves 200 are located on both sides of the strip-shaped protrusion 40, and the distance between each strip groove 200 and the strip-shaped protrusion 40 is the same. It should be noted that the strip protrusion 40 is formed by extrusion by an external extrusion device. Specifically, the external extrusion device includes an extrusion block that can move up and down, and the extrusion block has two oppositely arranged extrusion parts. The two extrusion parts are spaced apart by a predetermined distance, and the cross-sectional dimension of the extrusion parts is larger than the width of the strip groove 200 in the initial state. At the same time, the strip-shaped protrusion 40 in the initial state is located between the two extrusion parts and is planar. That is, when the extrusion block moves closer to the strip groove 200, the size of the strip groove 200 increases, and the wall surface of the copper busbar structure based on partial nickel plating located between the two extrusion parts deforms and extends towards the two extrusion parts to form a shape like... Figure 2 The strip-shaped protrusion 40 shown.
[0026] It should also be noted that the aforementioned strip-shaped protrusion 40 defines the electroplating area to facilitate precise control over the location and effect of localized treatment. This electroplating area is a nickel-plated area, and a localized electroplating mask is created specifically for this area. The mask is made of rubber material and produced by hand-drawing and cutting to meet the localized electroplating requirements of the irregularly shaped copper busbar. The mask is then tightly adhered to the surface of the copper busbar before the electroplating process.
[0027] Additionally, the strip-shaped protrusion 40 can cooperate with the external slot to initially define the position of the copper busbar structure based on partial nickel plating, so as to prevent the copper busbar structure based on partial nickel plating from shaking during the process of fastening the second connecting part 20.
[0028] It is worth mentioning that the second connecting part 20 also has a mounting hole 201, which penetrates the second connecting part 20. The mounting hole 201 also has an annular mating groove 202 on its periphery, and a pressure ring 50 is placed within the annular mating groove 202. One end of the pressure ring 50 is placed within the annular mating groove 202, and the other end is placed on the outside. Specifically, the pressure ring 50 can be fixed within the annular mating groove 202, which can be achieved by welding. Specifically, an external screw can pass through the mounting hole 201 to define the position of the copper busbar structure based on partial nickel plating. Simultaneously, the other end of the external screw will compress the pressure ring 50, causing the pressure ring 50 to deform and its inner diameter to decrease, so that the inner diameter of the pressure ring 50 forms an interference fit with the surface of the external screw, thus positioning the second connecting part 20.
[0029] In summary, the copper busbar structure based on partial nickel plating described in the embodiments of this application has been clarified, which provides advantages such as simple structure, high practicality, and secure fastening.
[0030] It is worth mentioning that, in the embodiments of this application, the copper busbar structure based on partial nickel plating is simple in structure, does not involve complex manufacturing processes or expensive materials, and has high economic efficiency. At the same time, for manufacturers, the copper busbar structure based on partial nickel plating provided in this application is easy to produce and has low cost, which is more conducive to controlling production costs and further facilitates product promotion and use.
[0031] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The function and structural principle of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from these principles.
Claims
1. A copper busbar structure based on localized nickel plating, characterized in that, The copper busbar structure based on localized nickel plating includes: A copper busbar body, wherein the copper busbar body is an irregularly shaped copper busbar with a thickness of 3mm and a width of 30mm, and the irregularly shaped copper busbar has a first connecting part and a second connecting part, the first connecting part and the second connecting part are integrally formed, and the first connecting part and the second connecting part are hook-shaped, and the connection between the first connecting part and the second connecting part also has a strip-shaped protrusion.
2. The copper busbar structure based on partial nickel plating according to claim 1, wherein the end of the first connecting portion away from the second connecting portion further comprises two joint portions, the two joint portions being arranged opposite to each other and spaced apart by a predetermined distance.
3. The copper busbar structure based on partial nickel plating according to claim 2, wherein the end of the first connecting portion having the joint portion further has a U-shaped groove, and the two joint portions are located on both sides of the U-shaped groove.
4. The copper busbar structure based on partial nickel plating according to claim 3, wherein each of the joint portions has an extension portion and a bend portion, the extension portion is connected to the bend portion, and the end of the extension portion away from the bend portion is also connected to the end of the first connecting portion having the U-shaped groove.
5. The copper busbar structure based on partial nickel plating according to claim 4, wherein the distance between the two connecting portions is greater than the distance between the two bending portions.
6. The copper busbar structure based on partial nickel plating according to claim 5, wherein the copper busbar body further has two strip grooves, the two strip grooves are located on both sides of the strip protrusion, and the distance between each strip groove and the strip protrusion is consistent.
7. The copper busbar structure based on partial nickel plating according to claim 6, wherein the second connecting part further has a mounting hole, the mounting hole penetrates the second connecting part, and the periphery of the mounting hole also has an annular mating groove, and a pressure ring is also placed in the annular mating groove, one end of the pressure ring is placed in the annular mating groove, and the other end is placed on the outside.