High-temperature-resistant self-adhesive enameled wire

Abstract

The utility model relates to a kind of high-temperature-resistant self-adhesive enameled wire, comprising: by the structure of multiple conductors stranded together, the insulating layer placed outside the structure, and the self-adhesive layer placed outside the insulating layer, each conductor includes inner concave surface, outer convex surface and outer edge surface, when stranding, the inner concave surface and outer convex surface of adjacent two conductors cooperate with each other to form stable structure, at least one protrusion is provided on the outer edge surface, the protrusion is conical structure, and the protrusion height is not greater than 1 / 5 of the diameter of the structure. Advantageous effects are: it has good stable structure and flexibility, can maintain the tight state of coil under high temperature, improve heat-resistant life, reduce electronic and electrical damage, and greatly improve product stability.

Description

Technical Field

[0001] This utility model relates to the field of enameled wire technology, and in particular to a high-temperature resistant self-adhesive enameled wire. Background Technology

[0002] Currently, enameled wire is widely used in deep-sea exploration, industrial motors, instruments, transformers, automobiles, and other fields. During the production and processing of enameled wire, the self-bonding conditions are determined based on the self-bonding temperature, and the internal thermal rating ranges from 130 to 220. Generally, 240-grade enameled wire is used only in military applications and special environments. Enameled wires without high-temperature self-bonding coatings are not used in these applications. At high temperatures, the insulation layer may loosen or the heat resistance life may be shortened, leading to damage to electronic and electrical components.

[0003] To address this, a high-temperature resistant self-adhesive enameled wire was developed and designed. It has a good stable structure and flexibility, can maintain the tightness of the coil under high temperature conditions, improve heat resistance life, reduce damage to electronic and electrical components, and greatly improve product stability. Utility Model Content

[0004] This invention provides a high-temperature resistant self-adhesive enameled wire to solve the problems in the prior art.

[0005] The technical problem solved by this utility model is achieved by the following technical solution: A high-temperature resistant self-adhesive enameled wire includes: a structure composed of multiple conductors twisted together, an insulation layer disposed on the outside of the structure, and a self-adhesive layer disposed on the outside of the insulation layer. Each conductor includes a concave surface, a convex surface, and an outer edge surface. When stranded, the concave surfaces and convex surfaces of two adjacent conductors cooperate with each other to form a stable structure. At least one protrusion is provided on the outer edge surface. The protrusion has a conical structure and its height is not greater than 1 / 5 of the diameter of the structure. The insulating layer is a polyimide layer, and the thickness of the insulating layer is 1 / 2 to 1 / 3 of the diameter of the structure. The self-adhesive layer is a polyamide layer, and the thickness of the self-adhesive layer is 1 / 5 to 1 / 10 of the diameter of the structure.

[0006] As a preferred technical solution, the thickness ratio of the insulating layer to the self-adhesive layer is 3:1.

[0007] As a preferred technical solution, the number of conductors is 2-4.

[0008] As a preferred technical solution, the conductor is helical, and its pitch is not less than 20 times the diameter of the structure.

[0009] As a preferred technical solution, the spiral direction of the conductor is counterclockwise.

[0010] As a preferred technical solution, the spiral direction of the conductor is clockwise.

[0011] As a preferred technical solution, a center line is provided at the center of the structure, and the diameter of the center line is 1 / 10 of the diameter of the structure.

[0012] As a preferred technical solution, the conductor is made by stretching oxygen-free copper material with a purity of 99.95% or higher.

[0013] The beneficial effects of this utility model are: it has a good stable structure and flexibility, can maintain the coil in a tight state at high temperatures, improves heat resistance life, reduces damage to electronic and electrical appliances, and greatly improves the stability of the product. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the first type of high-temperature resistant self-adhesive enameled wire of this utility model; Figure 2 This is a schematic diagram of the structure of the first type of high-temperature resistant self-adhesive enameled wire of this utility model; Figure 3 This is a schematic diagram of the second type of high-temperature resistant self-adhesive enameled wire of this utility model; Figure 4 This is a schematic diagram of the structure of the second type of high-temperature resistant self-adhesive enameled wire of this utility model; Figure 5 This is a schematic diagram of the third type of high-temperature resistant self-adhesive enameled wire of this utility model; Figure 6 This is a schematic diagram of the structure of the third type of high-temperature resistant self-adhesive enameled wire of this utility model; Figure 7 This is a schematic diagram of the fourth type of high-temperature resistant self-adhesive enameled wire of this utility model; Figure 8 This is a schematic diagram of the structure of the fourth type of high-temperature resistant self-adhesive enameled wire of this utility model.

[0016] in: 100 - Structure; 200 - Insulation layer; 300 - Self-adhesive layer; 10-Conductor; 101-Inner concave surface; 102 - Convex surface; 103 - Outer edge surface; 104 - Protrusion; 105-Centerline body. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0018] Example 1 Reference Figure 1-6 As shown, a high-temperature resistant self-adhesive enameled wire includes: a structure 100 composed of multiple conductors 10 twisted together, an insulation layer 200 placed on the outside of the structure 100, and a self-adhesive layer 300 placed on the outside of the insulation layer 200. The conductors 10 in this invention are made of oxygen-free copper material with a purity of 99.95% or higher, drawn at high speed to the customer's specifications with an accuracy of 1‰mm. The insulation layer 200 is coated with polyimide varnish and formed after high-temperature baking. Polyamide-imide is a type of polymer with regularly arranged imide rings and amide bonds, a glass transition temperature of 250-300℃, a heat distortion temperature of 269℃, and can work continuously for 20,000 hours at 240℃. The self-adhesive layer 300 is made of polyamide material, which has excellent tensile strength, wear resistance, and high-temperature resistance. It has strong structural stability and can bond at high temperatures, making the enameled wire more compact and improving its insulation performance.

[0019] Each conductor 10 of this invention includes a concave surface 101, a convex surface 102, and an outer edge surface 103. During stranding, the concave surfaces 101 and convex surfaces 102 of adjacent conductors 10 cooperate to form a stable structure 100. Generally, the structure 100 is circular; therefore, the outer edge surface 103 is an arc-shaped structure. At least one protrusion 104 is provided on the outer edge surface 103. The protrusion 104 has a conical structure, and its height is no greater than 1 / 5 of the diameter of the structure 100. The function of the protrusion 104 is to effectively improve the adhesion of the insulating layer 200 on its surface, greatly improving the product's stability.

[0020] The insulating layer 200 of this invention is a polyimide layer, and the thickness of the insulating layer 200 is 1 / 2 to 1 / 3 of the diameter of the structure 100; the self-adhesive layer 300 is a polyamide layer, and the thickness of the self-adhesive layer 300 is 1 / 5 to 1 / 10 of the diameter of the structure 100. The thickness ratio of the insulating layer 200 to the self-adhesive layer 300 is 3:1.

[0021] The present invention uses 2-4 conductors 10, employing a multi-conductor 10 structural design, which effectively provides flexibility to the electromagnetic wire. (See figure.) Figure 1-2 The number of conductors 10 in the middle is 2. Figure 3-4 The number of conductors 10 in the middle is 3. Figure 5-6 The number of conductors 10 is 3. Among them, a center line body 105 is provided at the center of the structure 100, and the diameter of the center line body 105 is 1 / 10 of the diameter of the structure 100.

[0022] The beneficial effects of this utility model are: it has a good stable structure and flexibility, can maintain the coil in a tight state at high temperatures, improves heat resistance life, reduces damage to electronic and electrical appliances, and greatly improves the stability of the product.

[0023] Example 2 Reference Figure 7-8 As shown, the difference between this embodiment 2 and embodiment 1 is that the conductor 10 in this embodiment 2 is spiral in shape, and its pitch is not less than 20 times the diameter of the structure 100. The spiral direction of the conductor 10 is either counterclockwise or clockwise.

[0024] Because the conductor 10 adopts a spiral structure, the protrusion 104 on its outer edge 103 also presents a spiral shape, which further effectively improves the adhesion of the insulating layer 200 on its surface and greatly improves the product's stability performance.

[0025] The beneficial effects of this utility model are: it has a good stable structure and flexibility, can maintain the coil in a tight state at high temperatures, improves heat resistance life, reduces damage to electronic and electrical appliances, and greatly improves the stability of the product.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature resistant self-adhesive enameled wire, characterized in that, include: A structure consisting of multiple conductors twisted together, an insulating layer placed on the outside of the structure, and a self-adhesive layer placed on the outside of the insulating layer. Each conductor includes a concave surface, a convex surface, and an outer edge surface. When stranded, the concave surfaces and convex surfaces of two adjacent conductors cooperate with each other to form a stable structure. At least one protrusion is provided on the outer edge surface. The protrusion has a conical structure and its height is not greater than 1 / 5 of the diameter of the structure. The insulating layer is a polyimide layer, and the thickness of the insulating layer is 1 / 2 to 1 / 3 of the diameter of the structure. The self-adhesive layer is a polyamide layer, and the thickness of the self-adhesive layer is 1 / 5 to 1 / 10 of the diameter of the structure.

2. The high-temperature resistant self-adhesive enameled wire according to claim 1, characterized in that, The thickness ratio of the insulating layer to the self-adhesive layer is 3:

1.

3. The high-temperature resistant self-adhesive enameled wire according to claim 1, characterized in that, The number of conductors is 2-4.

4. The high-temperature resistant self-adhesive enameled wire according to claim 1, characterized in that, The conductor is helical, and its pitch is not less than 20 times the diameter of the structure.

5. The high-temperature resistant self-adhesive enameled wire according to claim 4, characterized in that, The conductor is spiraled counterclockwise.

6. The high-temperature resistant self-adhesive enameled wire according to claim 4, characterized in that, The conductor is spiraled clockwise.

7. The high-temperature resistant self-adhesive enameled wire according to claim 1, characterized in that, A center line is provided at the center of the structure, and the diameter of the center line is 1 / 10 of the diameter of the structure.

8. The high-temperature resistant self-adhesive enameled wire according to claim 1, characterized in that, The conductor is made by stretching oxygen-free copper material with a purity of 99.95% or higher.

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