Silver-plated conductor with multi-layer composite structure

By using a multi-layered composite structure of silver-plated conductors, the limitations of conductors in terms of conductivity, corrosion resistance, and mechanical properties are overcome, achieving high performance and stability, making it suitable for high-performance electronic equipment and extreme environments.

CN224153167UActive Publication Date: 2026-04-21JIANGSU TAISHAN IND TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU TAISHAN IND TECHNOLOGY CO LTD
Filing Date
2025-05-23
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing single-structure conductors have limitations in conductivity, corrosion resistance, and mechanical properties, making it difficult to meet the needs of high-performance electronic equipment and extreme environments.

Method used

The silver-plated conductor employs a multi-layer composite structure, including a core conductor, a stress buffer layer, an intermediate transition layer, a silver plating layer, an anti-oxidation protective layer, and a surface lubrication layer. Each layer works synergistically to enhance overall performance.

Benefits of technology

It achieves high conductivity, low resistance, oxidation resistance, corrosion resistance, and high mechanical strength, ensuring the stability and reliability of current transmission and adapting to long-term use in complex environments.

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Abstract

The utility model belongs to the technical field of silver-plated conductors, and particularly relates to a silver-plated conductor with a multi-layer composite structure, which comprises a core conductor, a stress buffer layer arranged on the outer layer of the core conductor, a middle transition layer arranged on the outer layer of the stress buffer layer, a silver-plated layer arranged on the outer layer of the middle transition layer, and a silver-plated layer arranged on the outer layer of the silver-plated layer. An anti-oxidation protection layer is arranged on the outer layer of the silver plating layer, and a surface lubricating layer is arranged on the outer layer of the anti-oxidation protection layer. According to the utility model, the core conductor provides a conductive basis and mechanical support; the stress buffer layer improves fatigue resistance; the middle transition layer enhances the binding force and assists in protection; the silver coating reduces resistance and protects the interior; the service life is prolonged through an anti-oxidation protection layer; the surface lubricating layer reduces friction and maintains performance, and all the layers cooperate to achieve efficient and stable current transmission.
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Description

Technical Field

[0001] This utility model relates to the field of silver-plated conductor technology, specifically to a multi-layer composite structure silver-plated conductor. Background Technology

[0002] In many fields such as electronics and power, conductor performance plays a crucial role in the stability and efficiency of system operation. Traditional single-structure conductors, such as pure copper or pure aluminum conductors, have many limitations in terms of conductivity, corrosion resistance, and mechanical properties. For example, although pure copper conductors have good conductivity, they are prone to oxidation in humid or corrosive environments, leading to increased resistance and decreased conductivity, which can even affect the normal operation of the entire circuit in severe cases. Although pure aluminum conductors are low in cost and lightweight, their mechanical strength is relatively weak, and they are prone to breakage in applications involving frequent bending or stretching.

[0003] With the rapid development of technology, electronic devices are constantly moving towards miniaturization and high performance, placing higher demands on the comprehensive performance of conductors. In high-performance electronic products, such as 5G base stations and high-end servers, conductors need to ensure low resistance, high conductivity, excellent anti-interference capabilities, and long-term stable performance. In special fields such as aerospace and marine exploration, conductors must also be able to withstand extreme environments, such as high temperature, high pressure, and strong corrosion. However, existing ordinary conductors are difficult to meet these complex and demanding application requirements. To solve these problems, the development of a multilayer composite structure silver-plated conductor with excellent comprehensive performance is urgently needed, which is the research background of this solution. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a multi-layer composite structure silver-plated conductor, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0008] A multilayer composite structure silver-plated conductor includes a core conductor, a stress buffer layer on the outer layer of the core conductor, an intermediate transition layer on the outer layer of the stress buffer layer, a silver plating layer on the outer layer of the intermediate transition layer, an anti-oxidation protective layer on the outer layer of the silver plating layer, and a surface lubrication layer on the outer layer of the anti-oxidation protective layer.

[0009] Furthermore, the core conductor is copper or aluminum.

[0010] Furthermore, the stress buffer layer is a polyimide structural layer.

[0011] Furthermore, the intermediate transition layer is a nickel layer.

[0012] Furthermore, the antioxidant protective layer is a titanium dioxide thin film structure layer.

[0013] Furthermore, the surface lubricating layer adopts a fluoropolymer polytetrafluoroethylene structural layer.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a multi-layer composite structure silver-plated conductor, which has the following beneficial effects:

[0016] In this invention, the core conductor provides a conductive foundation and mechanical support; the stress buffer layer enhances fatigue resistance; the intermediate transition layer strengthens the bonding force and provides auxiliary protection; the silver plating layer reduces resistance and protects the interior; the anti-oxidation protective layer extends service life; and the surface lubrication layer reduces friction and maintains performance. All layers work together to achieve efficient and stable current transmission. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0019] In the diagram: 1. Core conductor; 2. Stress buffer layer; 3. Intermediate transition layer; 4. Silver plating layer; 5. Anti-oxidation protective layer; 6. Surface lubrication layer. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example

[0022] like Figure 1-2 As shown in one embodiment of this utility model, a multi-layer composite structure silver-plated conductor includes a core conductor 1 made of metal materials such as copper or aluminum, which has good conductivity and a certain mechanical strength. The good conductivity makes it the main channel for current transmission, ensuring efficient power delivery; the certain mechanical strength facilitates the processing and installation of the conductor, maintains shape stability during use, and prevents easy deformation and damage due to external forces, providing basic support and conductivity for the entire silver-plated conductor.

[0023] like Figure 1-2 As shown, stress buffer layer 2 is a polyimide structural layer, which is soft and elastic. It can effectively absorb and disperse the stress generated in the core conductor 1 during manufacturing and use. When the conductor is subjected to external forces such as tension and bending, stress buffer layer 2 can buffer the stress, avoid stress concentration on the core conductor 1, thereby improving the fatigue resistance of the conductor, extending its service life, and protecting the structural integrity and electrical performance of the core conductor 1.

[0024] like Figure 1-2 As shown, the intermediate transition layer 3 is a nickel layer with good adhesion. This layer is tightly attached between the core conductor 1 and the silver plating layer 4. On the one hand, it enhances the bonding force between the core conductor 1 and the silver plating layer 4, allowing the silver plating layer 4 to firmly cover the core conductor 1 and preventing peeling or detachment. On the other hand, the nickel layer itself has a certain degree of corrosion resistance, which can help protect the core conductor 1 and improve the stability of the entire conductor structure.

[0025] like Figure 1-2 As shown, the silver plating layer 4 is located outside the intermediate transition layer 3, and its key feature is the high conductivity of silver. The silver plating layer 4 can significantly reduce the resistance of the conductor, improve the current transmission efficiency, and reduce the loss of electrical energy during transmission. At the same time, silver has good anti-oxidation and anti-corrosion properties, which can prevent the internal core conductor 1 and intermediate transition layer 3 from being corroded by the external environment and maintain the stability of the conductor's electrical properties.

[0026] like Figure 1-2 As shown, the antioxidant protective layer 5 is a titanium dioxide thin film structure layer with good chemical stability and optical properties. This layer covers the surface of the silver plating layer 4, further preventing corrosive substances such as oxygen and water vapor from contacting the silver plating layer 4, enhancing the oxidation resistance of the silver plating layer 4, and extending the service life of the silver-plated conductor. In addition, the optical properties of the titanium dioxide thin film help reduce light reflection in some scenarios, which has a positive effect on applications involving light transmission.

[0027] like Figure 1-2 As shown, surface lubrication layer 6 is a fluoropolymer polytetrafluoroethylene (PTFE) structural layer with an extremely low coefficient of friction. Located on the outermost layer of the conductor, it reduces friction with other object surfaces during conductor installation and wiring, lowers surface wear, and makes it easier for the conductor to pass through pipes, cable trays, etc. Simultaneously, this layer prevents dust and impurities from adhering to the conductor surface, keeping the conductor surface clean and maintaining the conductor's electrical properties and appearance quality.

[0028] When this multi-layered composite structure silver-plated conductor is in operation, the core conductor 1 serves as the main carrier for current transmission, providing a path for the current through its excellent conductivity. The stress buffer layer 2 alleviates the internal stress generated in the core conductor 1 during processing or use, preventing damage caused by stress concentration and ensuring the stable performance of the core conductor 1. The intermediate transition layer 3 enhances the bonding force between the core conductor 1 and the silver plating layer 4, ensuring a tight connection between the layers. The silver plating layer 4 utilizes the extremely high conductivity of silver to significantly reduce conductor resistance and improve current transmission efficiency, while its excellent anti-oxidation and anti-corrosion properties protect the internal structure. The anti-oxidation protective layer 5 further blocks the corrosion of the silver plating layer 4 by oxygen and moisture, extending the service life of the silver plating layer 4. The surface lubrication layer 6, with its low coefficient of friction, reduces friction during conductor wiring, prevents surface wear, and also prevents the adhesion of dust and impurities, maintaining the stability and reliability of the overall structure, together achieving efficient and stable current transmission.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A silver-plated conductor of a multilayer composite structure comprising a core conductor (1), characterized in that: The core conductor (1) is provided with a stress buffer layer (2) on its outer layer, an intermediate transition layer (3) is provided on its outer layer, a silver plating layer (4) is provided on its outer layer, an anti-oxidation protective layer (5) is provided on its outer layer, and a surface lubrication layer (6) is provided on its outer layer.

2. A multi-layer composite structure silvered conductor according to claim 1, characterized in that: The core conductor (1) is copper or aluminum.

3. The multi-layer composite structure silvered conductor of claim 1, wherein: The stress buffer layer (2) is a polyimide structural layer.

4. The multi-layer composite structure silvered conductor of claim 1, wherein: The intermediate transition layer (3) is a nickel layer.

5. The multi-layer composite structure silvered conductor of claim 1, wherein: The antioxidant protective layer (5) is a titanium dioxide thin film structure layer.

6. The multi-layer composite structure silvered conductor of claim 1, wherein: The surface lubrication layer (6) is a fluoropolymer polytetrafluoroethylene structural layer.