Enameled round copper wire

Abstract

The utility model provides an enameled round copper wire. The enameled round copper wire sequentially comprises a copper core layer, an antioxidant layer, an insulating paint layer and a protective layer from inside to outside. In the working process of the enameled round copper wire, the antioxidant layer can improve the antioxidant performance of the copper core layer. The insulating paint layer can improve the insulating performance of the outer wall of the copper core layer. The protection layer can improve the impact resistance and wear resistance of the copper core layer, and prevents the enameled round copper wire from being crashed and damaged in the transportation process. Specifically, the nylon layer in the protective layer is high in structural strength, good in wear resistance and excellent in heat resistance and chemical resistance. And the polyurethane layer in the protective layer is good in wear resistance and corrosion resistance. When the enameled copper round wire is used, the protective layer between the two adjacent partition wires is torn open along the spot breaking wire by symmetrically pulling the L-shaped pulling blocks, so that the protective layer can be conveniently torn off from the enameled copper round wire. According to the enameled round copper wire, the protective layer can be conveniently removed, the removal process is simple, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of enameled wires, in particular to enameled round copper wires. Background Art

[0002] Enameled wire is a major type of winding wire, consisting of a conductor and an insulation layer. After annealing and softening, the bare wire is then repeatedly coated and baked. However, producing enameled wire that meets both standard requirements and customer specifications is challenging. Enameled wire's quality characteristics vary widely, influenced by factors such as raw material quality, process parameters, production equipment, and environmental factors. However, all possess four fundamental properties: mechanical, chemical, electrical, and thermal properties. Enameled wire is a primary raw material for products such as motors, electrical appliances, and household appliances. In recent years, the power industry has experienced sustained and rapid growth, and the rapid development of household appliances has broadened the application scope of enameled wire.

[0003] However, traditional enameled wires, such as the technical solution protected by the patent application number CN201621073431.1, which is titled "Enameled Wire," are easily damaged during transportation and handling. To improve the damage resistance of enameled wires, enameled wires with protective shells have appeared on the market, such as the patent application number CN201610751453.7, which is titled "Polyurethane Nylon Enameled Wire with Easy Peeling." The protective shell can be removed during use, but the process of removing the protective shell is cumbersome, increasing the cost of use. Utility Model Content

[0004] Based on this, it is necessary to provide an enameled copper round wire to address the technical problem that the process of removing the protective shell of the traditional enameled wire with a protective shell is cumbersome and increases the cost of use.

[0005] An enameled round copper wire, comprising, from the inside to the outside, a copper core layer, an anti-oxidation layer, an insulating varnish layer, and a protective layer;

[0006] The anti-oxidation layer is wrapped and arranged on the copper core layer, the insulating varnish layer is wrapped and arranged on the anti-oxidation layer, and the protective layer is arranged on the insulating varnish layer;

[0007] Partition lines are evenly opened on the protective layer, and a dotted line is set between two adjacent partition lines; the dotted line is set tangent to the partition line; the protective layer is provided with two L-shaped pulling blocks in the part close to the partition line, and the two L-shaped pulling blocks are symmetrically arranged on both sides of the dotted line; a force-bearing protrusion is set at the end of the L-shaped pulling block away from the protective layer; the protective layer includes a nylon layer and a polyurethane layer; the nylon layer is wrapped on the insulating paint layer, and the polyurethane layer is wrapped on the nylon layer.

[0008] In one embodiment, the anti-oxidation layer is a tin layer.

[0009] In one embodiment, the insulating paint layer is an epoxy resin paint layer.

[0010] In one embodiment, the insulating paint layer is a polyamide-imide paint layer.

[0011] In one embodiment, the insulating paint layer is a polyester imide paint layer.

[0012] In one embodiment, the diameter of the enameled round copper wire is 0.8 mm to 1.2 mm.

[0013] In one embodiment, the diameter of the enameled round copper wire is 1 mm.

[0014] In one embodiment, the diameter of the copper core layer is 0.5 mm to 0.8 mm.

[0015] In one embodiment, the diameter of the copper core layer is 0.6 mm.

[0016] In one embodiment, the thickness of the anti-oxidation layer is 0.04 mm to 0.08 mm.

[0017] During the operation of the above-mentioned enameled round copper wire, the antioxidant layer can improve the antioxidant properties of the copper core layer. The insulating paint layer can improve the insulation properties of the outer wall of the copper core layer. The protective layer can improve the impact resistance and wear resistance of the copper core layer, and prevent the enameled round copper wire from being damaged by pits and bumps during transportation and handling. Specifically, the nylon layer in the protective layer has high structural strength, good wear resistance, and excellent heat resistance and chemical resistance. The polyurethane layer in the protective layer has good wear resistance and corrosion resistance. When the enameled round copper wire is used, the protective layer between the two adjacent partition lines is torn apart along the dotted line by symmetrically pulling the L-shaped pulling block, thereby facilitating the tearing off of the protective layer from the enameled round copper wire. The above-mentioned enameled round copper wire is convenient for removing the protective layer, and the removal process is simple, which reduces the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the structure of an enameled round copper wire in one embodiment;

[0019] Figure 2 Schematic diagram of the structure of an enameled round copper wire in one embodiment;

[0020] Figure 3 Schematic diagram of the structure of enameled round copper wire in one embodiment. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0023] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0025] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0026] Please also refer to Figures 1 to 3 The utility model provides an enameled copper round wire 10, which includes: a copper core layer 100, an anti-oxidation layer 200, an insulating varnish layer 300 and a protective layer 400 from the inside to the outside.

[0027] In this embodiment, the diameter of the enameled round copper wire 10 is 0.8 mm to 1.2 mm. Specifically, the diameter of the enameled round copper wire 10 is 1 mm. In this embodiment, the diameter of the copper core layer 100 is 0.5 mm to 0.8 mm. Specifically, the diameter of the copper core layer 100 is 0.6 mm. In this embodiment, the thickness of the anti-oxidation layer 200 is 0.04 mm to 0.08 mm.

[0028] In this embodiment, the anti-oxidation layer 200 is a tin layer. Tin plating has excellent oxidation resistance, corrosion resistance, and discoloration resistance. In addition, the tin layer is soft and has excellent solderability and ductility. The anti-oxidation layer 200 is wrapped around the copper core layer 100, and the insulating varnish layer 300 is wrapped around the anti-oxidation layer 200. In this embodiment, the insulating varnish layer 300 is an epoxy resin varnish layer. Epoxy resin varnish layers have excellent insulation properties and flexibility. In another embodiment, the insulating varnish layer 300 is a polyamide-imide varnish layer. In yet another embodiment, the insulating varnish layer 300 is a polyesterimide varnish layer.

[0029] The protective layer 400 includes a portion provided on the insulating varnish layer 300. Partition lines 401 are evenly arranged on the protective layer 400, and a dotted line 402 is provided between two adjacent partition lines 401. The dotted line 402 is provided tangent to the partition line 401. Two L-shaped pull blocks 410 are provided in the portion of the protective layer 400 close to the partition line 401, and the two L-shaped pull blocks 410 are symmetrically provided on both sides of the dotted line 402. A force-bearing protrusion 411 is provided at one end of the L-shaped pull block 410 away from the protective layer 400. The protective layer 400 includes a nylon layer 420 and a polyurethane layer 430. The nylon layer 420 is wrapped around the insulating varnish layer 300, and the polyurethane layer 430 is wrapped around the nylon layer 420.

[0030] During operation, the anti-oxidation layer 200 of the enameled copper round wire 100 can improve the oxidation resistance of the copper core layer 100. The insulating varnish layer 300 can improve the insulation performance of the outer wall of the copper core layer 100. The protective layer 400 can improve the impact resistance and wear resistance of the copper core layer 100, preventing the enameled copper round wire 100 from being damaged by pits and bumps during transportation. Specifically, the nylon layer 420 in the protective layer 400 has high structural strength, good wear resistance, and excellent heat and chemical resistance. The polyurethane layer 430 in the protective layer 400 has good wear resistance and corrosion resistance. When the enameled copper round wire 10 is in use, the protective layer 400 between two adjacent partition lines 401 is pulled apart along the dotted line 402 by symmetrically pulling the L-shaped pulling block 410, thereby facilitating the removal of the protective layer 400 from the enameled copper round wire 10. The enameled copper round wire 10 is easy to remove the protective layer 400, and the removal process is simple, reducing the cost of use.

[0031] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. An enameled round copper wire, characterized in that: From the inside to the outside, it includes copper core layer, anti-oxidation layer, insulating paint layer and protective layer; The anti-oxidation layer is wrapped and arranged on the copper core layer, the insulating varnish layer is wrapped and arranged on the anti-oxidation layer, and the protective layer is arranged on the insulating varnish layer; Partition lines are evenly opened on the protective layer, and a dotted line is set between two adjacent partition lines; the dotted line is set tangent to the partition line; the protective layer is provided with two L-shaped pulling blocks in the part close to the partition line, and the two L-shaped pulling blocks are symmetrically arranged on both sides of the dotted line; a force-bearing protrusion is set at the end of the L-shaped pulling block away from the protective layer; the protective layer includes a nylon layer and a polyurethane layer; the nylon layer is wrapped on the insulating paint layer, and the polyurethane layer is wrapped on the nylon layer.

2. The enameled round copper wire according to claim 1, characterized in that The anti-oxidation layer is a tin layer.

3. The enameled round copper wire according to claim 1, characterized in that The insulating paint layer is an epoxy resin paint layer.

4. The enameled round copper wire according to claim 1, characterized in that The insulating paint layer is a polyamide-imide paint layer.

5. The enameled round copper wire according to claim 1, characterized in that The insulating paint layer is a polyester imide paint layer.

6. The enameled round copper wire according to claim 1, characterized in that The diameter of the enameled round copper wire is 0.8 mm to 1.2 mm.

7. The enameled round copper wire according to claim 1, characterized in that The diameter of the enameled round copper wire is 1 mm.

8. The enameled round copper wire according to claim 4, characterized in that The diameter of the copper core layer is 0.5 mm to 0.8 mm.

9. The enameled round copper wire according to claim 1, characterized in that The diameter of the copper core layer is 0.6 mm.

10. The enameled round copper wire according to claim 1, characterized in that The thickness of the anti-oxidation layer is 0.04 mm to 0.08 mm.

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