Corrosion-resistant tinned round copper wire
Patent Information
- Application Number
- CN202521765988.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-19
- Publication Date
- 2026-09-08
- Estimated Expiration
- 2035-08-19
AI Technical Summary
[0002]镀锡铜线是指表面镀有一薄层金属锡的铜线,现有技术中铜线外层防护多依赖单一的绝缘或护套材料,其抗环境侵蚀能力有限,一旦外层破损,腐蚀介质迅速沿导线纵向蔓延,造成大面积损坏,尤其时在高腐蚀风险场景中,传统结构难以满足长期稳定运行的需求
[0014]通过铜线表面的镀锡层与外层防腐结构协同作用,形成多重防护,镀锡层有效隔绝铜基体与空气、水分接触,防止氧化,防腐层采用带有蜂窝腔结构的固定套,蜂窝腔内填充防腐涂层并呈网状连通分布,构成多单元、网状防腐屏障,即使局部受损,网状结构也能有效遏制腐蚀扩散,显著提升整体抗腐蚀能力与使用寿命;
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Figure CN224732545U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of copper wire technology, and in particular to corrosion-resistant tin-plated round copper wire. Background Technology
[0002] Tinned copper wire refers to copper wire with a thin layer of metallic tin plated on its surface. In the existing technology, the outer protection of copper wire mostly relies on a single insulation or sheath material, which has limited resistance to environmental corrosion. Once the outer layer is damaged, the corrosive medium will quickly spread along the longitudinal direction of the conductor, causing large-area damage. Especially in high corrosion risk scenarios, traditional structures are difficult to meet the requirements of long-term stable operation. Utility Model Content
[0003] This utility model addresses the shortcomings of existing technologies by providing the following technical solution:
[0004] Corrosion-resistant tin-plated round copper wire, including:
[0005] Insulating layer;
[0006] The support assembly includes an elastic skeleton disposed within an insulating layer and multiple sets of limiting discs fixedly sleeved on the elastic skeleton in a linear array, wherein the circumferential surface of the limiting discs is provided with placement grooves.
[0007] Multiple sets of copper wires are arranged one-to-one in the placement groove, and the surface of the copper wires is provided with a tin plating layer.
[0008] Multiple positioning sleeves are wrapped around multiple copper wires and located between two limiting discs;
[0009] The anti-corrosion layer includes a fixing sleeve wrapped around the insulating layer and multiple sets of honeycomb cavities formed on the fixing sleeve. The multiple sets of honeycomb cavities are interconnected on the surface of the fixing sleeve to form a mesh structure, and the honeycomb cavities are filled with an anti-corrosion coating.
[0010] As an improvement to the above technical solution, an insect-proof layer is provided between the insulating layer and the anti-corrosion layer.
[0011] As an improvement to the above technical solution, the insect-proof layer includes a spiral skeleton spirally disposed on the surface of the insulating layer, a spiral groove is formed between the spiral skeleton and the anti-corrosion layer, and the spiral groove is filled with insect-proof powder.
[0012] As an improvement to the above technical solution, the surface of the anti-corrosion layer is covered with a protective layer.
[0013] The beneficial effects of this utility model are:
[0014] The tin plating layer on the surface of the copper wire works synergistically with the outer anti-corrosion structure to form multiple layers of protection. The tin plating layer effectively isolates the copper substrate from contact with air and moisture, preventing oxidation. The anti-corrosion layer uses a fixed sleeve with a honeycomb cavity structure. The honeycomb cavity is filled with an anti-corrosion coating and distributed in a mesh pattern, forming a multi-unit, mesh-like anti-corrosion barrier. Even if there is local damage, the mesh structure can effectively curb the spread of corrosion, significantly improving the overall corrosion resistance and service life.
[0015] The flexible skeleton serves as the core support, and together with the linearly arranged limiting discs and positioning sleeves, the copper wires can maintain structural integrity under bending, stretching, or vibration environments. The flexible skeleton can expand and contract synchronously with deformation to avoid rigid fracture. The limiting discs independently position the copper wires to prevent them from tangling or being squeezed. The positioning sleeves further reinforce the copper wire bundle and improve the overall vibration resistance and fatigue resistance. Attached Figure Description
[0016] Figure 1 This is a front view of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the connection structure between the elastic frame and the limiting plate of this utility model;
[0018] Figure 3 This is a schematic diagram of the insect-proof layer of this utility model;
[0019] Figure 4 This is a schematic diagram of the anti-corrosion layer structure of this utility model.
[0020] Reference numerals: 10, limiting plate; 11, elastic skeleton; 12, placement groove; 13, insulating layer; 14, spiral skeleton; 15, fixing sleeve; 151, honeycomb cavity; 16, protective layer; 20, copper wire; 21, tin plating layer; 30, positioning sleeve. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0022] Corrosion-resistant tin-plated round copper wire, including:
[0023] Insulation layer 13;
[0024] The support assembly includes an elastic skeleton 11 disposed within an insulating layer 13 and multiple sets of limiting disks 10 fixedly sleeved on the elastic skeleton 11 in a linear array. The circumferential surface of the limiting disks 10 is provided with placement grooves 12.
[0025] Multiple sets of copper wires 20 are arranged one-to-one in the placement groove 12, and the surface of the copper wires 20 is provided with a tin plating layer 21.
[0026] Multiple positioning sleeves 30 are wrapped around multiple copper wires 20 and located between two limiting discs 10;
[0027] The anti-corrosion layer includes a fixing sleeve 15 wrapped around the insulating layer 13 and multiple sets of honeycomb cavities 151 formed on the fixing sleeve 15. The multiple sets of honeycomb cavities 151 are interconnected on the surface of the fixing sleeve 15 to form a mesh structure, and the honeycomb cavities 151 are filled with an anti-corrosion coating.
[0028] Specifically, the multiple sets of copper wires 20 are the core carriers for current transmission. Their surface tin plating layer 21 provides a protective layer. Tin's stable chemical properties isolate the copper wires from direct contact with air and moisture, preventing oxidation and corrosion. The independent arrangement of the multiple sets of copper wires 20 reduces inter-wire interference and the risk of short circuits. The elastic frame 11, made of elastic material, is the "backbone" of the overall structure, deforming synchronously with the bending and stretching of the copper wires, preventing breakage caused by rigid support. Simultaneously, the frame provides a fixed foundation for the limiting plate 10 and the copper wires, preventing the overall structure from becoming loose. The limiting plate 10, through the placement slot 12, can position a single set of copper wires 20, preventing multiple sets of copper wires from tangling or being squeezed during transmission or installation. The two sets of limiting plates... The positioning sleeve 30 further wraps around the copper wire, strengthening the integrity of the wire assembly and preventing the copper wire from falling out of the placement slot due to vibration or displacement. The insulation layer 13 wraps around the support component and the outside of the copper wire, and is made of insulating material to ensure transmission stability. The outermost anti-corrosion layer is the key protection against complex environments. It consists of a fixing sleeve 15 and a honeycomb cavity 151. The fixing sleeve 15, as the outer shell, is made of acid and alkali resistant and aging resistant material, directly resisting the corrosion of external liquids and gases. The honeycomb cavity 151 is distributed in a mesh pattern, and the anti-corrosion coating (such as anti-corrosion paint, epoxy resin, etc.) filled inside can form multiple independent but interconnected anti-corrosion units. When local damage occurs, the mesh structure can prevent the damage from spreading rapidly to other areas.
[0029] In one embodiment, an insect-proof layer is provided between the insulation layer 13 and the anti-corrosion layer. The insect-proof layer tightly wraps the insulation layer 13 to prevent organisms from directly contacting the insulation layer, protect the integrity of the insulation layer, and ensure that its insulation performance is not damaged. The fixing sleeve 15 of the anti-corrosion layer wraps the insect-proof layer to provide an outer layer of protection for the insect-proof layer.
[0030] In one embodiment, the insect-repellent layer includes a spiral skeleton 14 spirally disposed on the surface of the insulation layer 13. A spiral groove is formed between the spiral skeleton 14 and the anti-corrosion layer. The spiral groove is filled with insect-repellent powder. The skeleton spirally wound around the surface of the insulation layer 13 forms a continuous spiral protrusion. When organisms (such as termites or rats) attempt to gnaw on the cable, the spiral structure of the spiral skeleton 14, compared to a smooth surface, can increase the resistance to the organisms' gnawing. The spiral groove formed between the spiral skeleton 14 and the anti-corrosion layer provides a closed storage space for the insect-repellent powder. The spiral shape ensures that the insect-repellent powder can be evenly distributed along the length of the cable, avoiding the problem of local accumulation or gaps of insect repellent due to gravity or vibration in traditional planar coating or filling methods, and ensuring that every section of the cable is covered with insect-repellent powder.
[0031] In one embodiment, the surface of the anti-corrosion layer is covered with a protective layer 16, which enhances the overall tensile and bending resistance of the cable.
[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.
Claims
1. Corrosion-resistant tin-plated round copper wire, characterized in that, include: Insulating layer (13); The support assembly includes an elastic frame (11) disposed in an insulating layer (13) and multiple sets of limiting disks (10) fixedly sleeved on the elastic frame (11) in a linear array. The circumferential surface of the limiting disks (10) is provided with placement grooves (12). Multiple sets of copper wires (20) are arranged one-to-one in the placement groove (12), and the surface of the copper wires (20) is provided with a tin plating layer (21); Multiple positioning sleeves (30) are wrapped around multiple copper wires (20) and located between two limiting discs (10); The anti-corrosion layer includes a fixing sleeve (15) wrapped around the insulating layer (13) and multiple sets of honeycomb cavities (151) opened on the fixing sleeve (15). The multiple sets of honeycomb cavities (151) are interconnected on the surface of the fixing sleeve (15) to form a mesh structure. The honeycomb cavities (151) are filled with an anti-corrosion coating.
2. The corrosion-resistant tin-plated round copper wire according to claim 1, characterized in that: An insect-proof layer is provided between the insulating layer (13) and the anti-corrosion layer.
3. The corrosion-resistant tin-plated round copper wire according to claim 2, characterized in that: The insect-proof layer includes a spiral skeleton (14) spirally disposed on the surface of the insulating layer (13), and a spiral groove is formed between the spiral skeleton (14) and the anti-corrosion layer, and the spiral groove is filled with insect-proof powder.
4. The corrosion-resistant tin-plated round copper wire according to claim 1, characterized in that: The surface of the anti-corrosion layer is covered with a protective layer (16).