Polyimide high-temperature composite enameled round copper wire

Abstract

The utility model discloses a polyimide high-temperature composite enameled round copper wire, which relates to the technical field of enameled round copper wires and comprises leads, an antioxidant layer is coated on the outer side of each lead, a plurality of leads are wrapped by a polyimide composite layer, a shielding layer is arranged on the outer layer of the polyimide composite layer, a flame-retardant layer is arranged on the outer layer of the shielding layer, and the flame-retardant layer is arranged on the outer layer of the polyimide composite layer. A protective layer is arranged on the outer layer of the flame-retardant layer, and the outer layer of the protective layer is coated with a coloring layer. The lead is made of copper, the anti-oxidation layer is the tin-plated metal layer, metal tin is plated on the surface of the lead, the copper lead has good conductivity, strong anti-oxidation performance, small conductive loss and small contact resistance, the tin-plated layer has excellent stability, corrosion of most forms can be effectively resisted, the tin-plated layer is soft, and the service life of the lead is prolonged. Therefore, the lead is not easy to break when being bent or twisted, and the service life of the product can be effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of enameled round copper wires, in particular to a polyimide high-temperature composite enameled round copper wire. Background Art

[0002] Polyimide high temperature composite enameled copper round wire is a special wire product, and its main feature is that it uses polyimide, a material with excellent high temperature resistance, as the enameling layer. Polyimide is an organic polymer material with excellent comprehensive performance. Its high temperature resistance can reach above 400℃, and its long-term use temperature range is -200~300℃. Therefore, polyimide high temperature composite enameled copper round wire can maintain stable electrical performance in high temperature environment. However, the outer protective layer of the existing polyimide high temperature composite enameled copper round wire is mostly designed with a single layer structure, and the protection is single. The polyimide material has certain requirements for the storage and use environment, such as avoiding long-term exposure to humid or high temperature environment to prevent its performance from changing. Therefore, based on this situation, a polyimide high temperature composite enameled copper round wire is proposed. Utility Model Content

[0003] The utility model aims to provide a polyimide high-temperature composite enameled copper round wire to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a polyimide high-temperature composite enameled copper round wire, comprising a conductor, the outer side of the conductor is coated with an anti-oxidation layer, a plurality of conductors are wrapped inside by a polyimide composite layer, the outer layer of the polyimide composite layer is provided with a shielding layer, the outer layer of the shielding layer is provided with a flame retardant layer, the outer layer of the flame retardant layer is provided with a protective layer, and the outer layer of the protective layer is coated with a colored layer.

[0005] Preferably, the wire is made of copper, and the anti-oxidation layer is a tin-plated metal layer, and metal tin is plated on the surface of the wire for protection.

[0006] Preferably, the polyimide composite layer is wrapped around the outside of the wire in the form of a film.

[0007] Preferably, the shielding layer is made of aluminum foil material covering the outer layer of the polyimide composite layer.

[0008] Preferably, the flame retardant layer is made of flame retardant polyolefin and is in close contact with the shielding layer.

[0009] Preferably, the protective layer includes a wear-resistant layer and a corrosion-resistant layer. The wear-resistant layer is made of polyurethane and is bonded to the outer side of the flame-retardant layer. The corrosion-resistant layer is a water-based inorganic zinc-rich primer coated on the outer surface of the wear-resistant layer.

[0010] Preferably, the coloring layer is coated on the outer layer of the corrosion-resistant layer using inorganic pigments.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model wire is made of copper, and the anti-oxidation layer is a tin-plated metal layer. Metal tin is plated on the surface of the wire. The copper wire has good electrical conductivity, strong anti-oxidation performance, small conductive loss, and small contact resistance. The tin-plated layer has excellent stability and can effectively resist most forms of corrosion. The tin-plated layer is soft, so the wire is not easy to break when bent or twisted, which can effectively extend the service life of the product.

[0013] 2. The utility model sets a shielding layer, and the shielding layer made of metal foil has good conductivity and shielding effect, which can effectively suppress electromagnetic radiation and interference from external electromagnetic fields and ensure the stability of signal transmission.

[0014] 3. The utility model sets a flame retardant layer and a wear-resistant layer. The flame retardant polyolefin used in the flame retardant layer has excellent thermal stability, is not easily deformed or degraded by heat, has excellent electrical insulation performance, can effectively isolate the electric field and prevent current leakage. The wear-resistant layer has excellent wear resistance, can effectively resist friction and wear, protects the enameled wire from damage during transmission and use, and extends the service life of the enameled wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a polyimide high-temperature composite enameled copper round wire in this utility model;

[0016] Figure 2 This is a front view of a polyimide high temperature composite enameled copper round wire;

[0017] Figure 3 The present invention provides a schematic diagram of the layered structure of a polyimide high-temperature composite enameled copper round wire protective layer.

[0018] In the figure: 1. conductor; 101. anti-oxidation layer; 2. polyimide composite layer; 3. shielding layer; 4. flame retardant layer; 5. protective layer; 501. wear-resistant layer; 502. corrosion-resistant layer; 6. coloring layer. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0020] like Figure 1-Figure 3As shown, a polyimide high-temperature composite enameled copper round wire includes a conductor 1, the outer side of the conductor 1 is coated with an anti-oxidation layer 101, a plurality of conductors 1 are wrapped inside by a polyimide composite layer 2, the outer layer of the polyimide composite layer 2 is provided with a shielding layer 3, the outer layer of the shielding layer 3 is provided with a flame retardant layer 4, the outer layer of the flame retardant layer 4 is provided with a protective layer 5, and the outer layer of the protective layer 5 is coated with a coloring layer 6.

[0021] The wire 1 is made of copper, and the anti-oxidation layer 101 is a tinned metal layer. Metal tin is plated on the surface of the wire 1 for protection. The copper wire 1 has good electrical conductivity, strong anti-oxidation performance, low electrical loss, and low contact resistance. The tinned layer has excellent stability and can effectively resist most forms of corrosion. Especially under sealed conditions, a thin tin layer can also provide good protection. The tinned layer is soft, so that the wire 1 is not easy to break when bent or twisted, which can effectively extend the service life of the product.

[0022] The polyimide composite layer 2 is wrapped around the outside of the conductor 1 in the form of a film. This film has excellent heat resistance, mechanical properties, chemical stability and dielectric properties, making it an ideal insulation and protection material in complex environments such as high temperature, high humidity and high voltage. By wrapping around the outside of the conductor 1, the polyimide composite layer 2 can effectively protect the conductor 1 from erosion and damage from the external environment, while ensuring the normal operation of the conductor 1 under harsh conditions.

[0023] The shielding layer 3 is made of aluminum foil material covering the outer layer of the polyimide composite layer 2. The metal foil material has good conductivity and shielding effect, which can effectively suppress electromagnetic radiation and interference from external electromagnetic fields and ensure the stability of signal transmission.

[0024] The flame retardant layer 4 is made of flame retardant polyolefin and is tightly attached to the shielding layer 3. The flame retardant polyolefin has excellent flame retardant properties. Flame retardant is added to the flame retardant polyolefin during the manufacturing process, so that it can slow down the combustion speed when encountering a fire source, and even self-extinguish under certain conditions, thereby significantly reducing the risk of fire. It has excellent thermal stability and can maintain its performance even in high temperature environments. It is not easily deformed or degraded by heat. It has excellent electrical insulation properties and can effectively isolate the electric field to prevent current leakage.

[0025] The protective layer 5 includes a wear-resistant layer 501 and a corrosion-resistant layer 502. The wear-resistant layer 501 is made of polyurethane, and the wear-resistant layer 501 is bonded to the outer side of the flame-retardant layer 4. The corrosion-resistant layer 502 is a water-based inorganic zinc-rich primer, which is coated on the outer surface of the wear-resistant layer 501. Polyurethane has excellent wear resistance, can effectively resist friction and wear, and protect the enameled wire from being easily damaged during transmission and use. Polyurethane has excellent insulation performance, which can ensure that the enameled wire reduces energy loss when transmitting current and improves transmission efficiency. It has chemical corrosion resistance and can resist corrosion from various chemicals, extending the service life of the enameled wire. The water-based inorganic zinc-rich primer does not contain toxic and harmful substances, has no fire hazard, is harmless to the construction environment and human health, has a high zinc powder content, has cathodic protection, can effectively prevent corrosion, has good adhesion, and can resist chemical radiation from sunlight. It is not easy to powder, crack or fall off under long-term exposure.

[0026] The coloring layer 6 is coated on the outer layer of the corrosion-resistant layer 502 using inorganic pigments. The inorganic pigments usually have bright and lasting colors. Their color stability is very high and they will not fade due to environmental factors such as light, temperature and humidity. Inorganic pigments usually do not contain organic solvents and other harmful substances. Therefore, they are harmless to the human body and the environment during use. The coloring layer 6 can mark the surface of the enameled wire or beautify its appearance.

[0027] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A polyimide high temperature composite enameled round copper wire, comprising a conductor (1), characterized in that: The outer side of the wire (1) is coated with an anti-oxidation layer (101), a plurality of wires (1) are wrapped inside by a polyimide composite layer (2), the outer layer of the polyimide composite layer (2) is provided with a shielding layer (3), the outer layer of the shielding layer (3) is provided with a flame retardant layer (4), the outer layer of the flame retardant layer (4) is provided with a protective layer (5), and the outer layer of the protective layer (5) is coated with a coloring layer (6).

2. The polyimide high temperature composite enameled round copper wire according to claim 1, characterized in that: The wire (1) is made of copper, and the anti-oxidation layer (101) is a tinned metal layer, and metal tin is plated on the surface of the wire (1) for protection.

3. The polyimide high temperature composite enameled round copper wire according to claim 1, characterized in that: The polyimide composite layer (2) is wrapped around the outside of the conductor (1) in the form of a thin film.

4. The polyimide high temperature composite enameled round copper wire according to claim 1, characterized in that: The shielding layer (3) is made of aluminum foil material and covers the outer layer of the polyimide composite layer (2).

5. The polyimide high temperature composite enameled round copper wire according to claim 1, characterized in that: The flame retardant layer (4) is made of flame retardant polyolefin and is closely attached to the shielding layer (3).

6. The polyimide high temperature composite enameled round copper wire according to claim 1, characterized in that: The protective layer (5) comprises a wear-resistant layer (501) and a corrosion-resistant layer (502), wherein the wear-resistant layer (501) is made of polyurethane, and the wear-resistant layer (501) is bonded to the outer layer of the flame-retardant layer (4), and the corrosion-resistant layer (502) is a water-based inorganic zinc-rich primer, which is coated on the outer surface of the wear-resistant layer (501).

7. The polyimide high temperature composite enameled round copper wire according to claim 1, characterized in that: The coloring layer (6) is coated on the outer layer of the corrosion-resistant layer (502) using inorganic pigments.

Images