Environment-friendly regenerated copper conductor enameled wire

CN224400096UActive Publication Date: 2026-06-23HUZHOU YONGXIN ELECTROMAGNETIC WIRE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUZHOU YONGXIN ELECTROMAGNETIC WIRE CO LTD
Filing Date
2025-07-21
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

[0004]然而,现有再生铜漆包线质量一般,无法满足更广泛的市场需求

Benefits of technology

[0013]与现有技术相比,本申请由导体芯、基础绝缘层、主绝缘层和最外部的功能层构成,基础绝缘层包括内层的镀锡层和外层的聚酯漆层,主绝缘层包括内层的多层聚酯亚胺层和外部的聚酰胺酰亚胺漆层,功能层从内向外依次为抗撕裂层、润滑层和自修复层;

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224400096U_ABST
    Figure CN224400096U_ABST
Patent Text Reader

Abstract

The utility model discloses an environmental protection regenerated copper conductor enameled wire, from inside to outside is conductor core, basic insulation layer, main insulation layer and the function layer of outermost part in proper order, the basic insulation layer includes the tinning layer of inner layer and the polyester paint layer of outer layer, the main insulation layer includes the multilayer polyester imine layer of inner layer and the polyamide imide paint layer of outside, the function layer from inside to outside is anti -tear layer, lubricating layer and self -repairing layer, the utility model discloses have relatively better quality's advantage.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of enameled wire technology, and in particular to an environmentally friendly recycled copper conductor enameled wire. Background Technology

[0002] Recycled copper enameled wire is a type of electrical wire product that is recycled and reused. It is a copper conductor that is remade from recycled scrap copper materials after processing. Enameled wire refers to wire with a copper conductor coated with an insulating varnish, used for electrical transmission and insulation protection. The production steps of recycled copper enameled wire generally include: recycling scrap copper materials, cleaning and sorting scrap copper materials, smelting and refining, copper wire drawing, insulation treatment, packaging, and quality inspection.

[0003] Recycled copper enameled wire has environmental and economic advantages, reducing dependence on limited resources and mitigating the environmental impact of scrap copper materials.

[0004] However, the quality of existing recycled copper enameled wire is generally poor, and it cannot meet the broader market demand. Utility Model Content

[0005] The purpose of this invention is to provide an environmentally friendly recycled copper conductor enameled wire. This invention has the advantage of relatively better quality.

[0006] The technical solution of this utility model is as follows: an environmentally friendly recycled copper conductor enameled wire, which consists of a conductor core, a basic insulation layer, a main insulation layer and an outermost functional layer from the inside out; the basic insulation layer includes an inner tin-plated layer and an outer polyester enamel layer; the main insulation layer includes an inner multilayer polyesterimide layer and an outer polyamide-imide enamel layer; the functional layer consists of a tear-resistant layer, a lubricating layer and a self-healing layer from the inside out.

[0007] In the aforementioned environmentally friendly recycled copper conductor enameled wire, the conductor core is a copper wire core made from recycled copper.

[0008] In the aforementioned environmentally friendly recycled copper conductor enameled wire, the tin plating layer adopts a low-temperature lead-free process and has a thickness of 0.5-1μm; the polyester enamel layer adopts terephthalic acid type polyester resin and has a thickness of 1.5-3μm.

[0009] In the aforementioned environmentally friendly recycled copper conductor enameled wire, the multilayer polyesterimide layer comprises 10-12 single-layer polyesterimide layers, each single-layer polyesterimide layer having a thickness of 0.003 mm, and the multilayer polyesterimide layer having a thickness of 0.03-0.036 mm; the polyamide-imide varnish layer is prepared by a multi-layer thin-coating process, and the polyamide-imide varnish layer contains nano-alumina filler with a thickness of 0.006 mm; the nano-alumina filler has a particle size of 50-80 nm.

[0010] In the aforementioned environmentally friendly recycled copper conductor enameled wire, the tear-resistant layer is made of polyacetal resin with a thickness of 0.005-0.01 mm.

[0011] In the aforementioned environmentally friendly recycled copper conductor enameled wire, the lubricating layer is made of paraffin-based material or de-alcoholized organosilicon with a thickness of 0.002-0.005 mm.

[0012] In the aforementioned environmentally friendly recycled copper conductor enameled wire, the self-healing layer is prepared using self-healing microcapsule technology and contains a repair agent.

[0013] Compared with the prior art, this application consists of a conductor core, a basic insulation layer, a main insulation layer and an outermost functional layer. The basic insulation layer includes an inner tin-plated layer and an outer polyester varnish layer. The main insulation layer includes an inner multilayer polyester imide layer and an outer polyamide imide varnish layer. The functional layers, from the inside out, are a tear-resistant layer, a lubricating layer and a self-healing layer.

[0014] By setting up a multi-layer structure and limiting the material and thickness of the enamel layer for each layer, the overall heat resistance, insulation strength and mechanical strength of the enameled wire are improved, resulting in better quality compared to existing ordinary recycled copper enameled wire.

[0015] Therefore, this utility model has the advantage of relatively better quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] The labels in the attached diagram are: 1-conductor core, 21-tin plating layer, 22-polyester varnish layer, 31-multilayer polyester imide layer, 32-polyamide imide varnish layer, 4-tear-resistant layer, 5-lubricating layer, 6-self-healing layer. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0019] Example. An environmentally friendly recycled copper conductor enameled wire, such as... Figure 1 As shown, from the inside out, the layers are conductor core 1, basic insulation layer, main insulation layer and outermost functional layer; the basic insulation layer includes an inner tin-plated layer 21 and an outer polyester varnish layer 22; the main insulation layer includes an inner multilayer polyester imide layer 31 and an outer polyamide imide varnish layer 32; the functional layers from the inside out are tear-resistant layer 4, lubricating layer 5 and self-healing layer 6.

[0020] The conductor core 1 is a copper wire core made from recycled copper.

[0021] The tin plating layer 21 is produced using a low-temperature lead-free process and has a thickness of 0.5-1 μm; the polyester varnish layer 22 is produced using terephthalic acid type polyester resin and has a thickness of 1.5-3 μm.

[0022] The multilayer polyesterimide layer 31 comprises 10-12 single-layer polyesterimide layers, each single-layer polyesterimide layer having a thickness of 0.003 mm, and the total thickness of the multilayer polyesterimide layer 31 is 0.03-0.036 mm. The polyamide-imide paint layer 32 is prepared by a multi-coating thin-coating process, and the polyamide-imide paint layer 32 contains nano-alumina filler with a thickness of 0.006 mm. The nano-alumina filler has a particle size of 50-80 nm.

[0023] The tear-resistant layer 4 is made of polyacetal resin with a thickness of 0.005-0.01 mm.

[0024] The lubricating layer 5 is made of paraffin-based material or de-alcoholized organosilicon, with a thickness of 0.002-0.005 mm.

[0025] The self-healing layer 6 is prepared using self-healing microcapsule technology and contains a repair agent.

Claims

1. An environmentally friendly recycled copper conductor enameled wire, characterized by: From the inside out, the layers are: conductor core (1), basic insulation layer, main insulation layer and outermost functional layer; the basic insulation layer includes an inner tin-plated layer (21) and an outer polyester varnish layer (22); the main insulation layer includes an inner multilayer polyester imide layer (31) and an outer polyamide imide varnish layer (32); the functional layers from the inside out are: tear-resistant layer (4), lubricating layer (5) and self-healing layer (6).

2. The environment-friendly recycled copper conductor enameled wire according to claim 1, characterized in that: The conductor core (1) is a copper wire core made from recycled copper.

3. The environment-friendly recycled copper conductor enameled wire according to claim 1, characterized in that: The tin plating layer (21) is made using a low-temperature lead-free process and has a thickness of 0.5-1μm; the polyester paint layer (22) is made using terephthalic acid type polyester resin and has a thickness of 1.5-3μm.

4. The environment-friendly recycled copper conductor enameled wire according to claim 1, characterized in that: The multilayer polyesterimide layer (31) consists of 10-12 single-layer polyesterimide layers, each single-layer polyesterimide layer having a thickness of 0.003 mm, and the multilayer polyesterimide layer (31) having a thickness of 0.03-0.036 mm; the polyamide-imide paint layer (32) is prepared by a multi-coating thin-coating process, and the polyamide-imide paint layer (32) contains nano-alumina filler with a thickness of 0.006 mm; the nano-alumina filler has a particle size of 50-80 nm.

5. The environment-friendly recycled copper conductor enameled wire according to claim 1, characterized in that: The tear-resistant layer (4) is made of polyacetal resin with a thickness of 0.005-0.01 mm.

6. The environment-friendly recycled copper conductor enameled wire according to claim 1, characterized in that: The lubricating layer (5) is made of paraffin-based material or de-alcoholized organosilicon, with a thickness of 0.002-0.005 mm.

7. The environment-friendly recycled copper conductor enameled wire according to claim 1, characterized in that: The self-healing layer (6) is prepared using self-healing microcapsule technology and contains a repair agent.