A high-strength flat enameled wire

Abstract

The utility model discloses a high-strength flat enameled wire, including an enameled wire body, the enameled wire body including a conductor layer, an insulating layer and a paint film layer from inside to outside, the conductor layer is formed by twisting at least two strands of alloy conductors and then pressing them into an oblate conductor structure, the outer side of the conductor layer is coated with an insulating layer, and an adhesive material is filled between the conductor layer and the insulating layer. An interlocking groove is provided on the outer wall surface of the conductor layer, and an anti-tension layer is provided in the interlocking groove. A nylon belt is wound around the outer side of the anti-tension layer to fix the anti-tension layer and the insulating layer, and a paint film layer is coated on the outer side of the nylon belt. The utility model adopts a high-strength alloy material as a conductor, optimizes the geometric structure of the wire, realizes better bendability and torsion resistance, and adopts a special coating technology to improve the corrosion resistance and insulation performance of the wire.

Description

Technical Field

[0001] The utility model relates to the technical field of enameled wires, in particular to a high-strength flat enameled wire. Background Art

[0002] Flat enameled wire refers to the wire obtained by drawing, extruding or rolling oxygen-free copper or round copper wire through a certain specification of die, and then coated with insulating varnish multiple times to form a winding wire. The "flat" in flat enameled wire refers to the shape of the material. Compared with enameled round copper wire and enameled hollow copper wire, flat enameled wire has very good insulation and corrosion resistance.

[0003] However, the traditional flat enameled wire has limitations in bending and twisting, which restricts its use in complex application environments. Therefore, a high-strength, bendable flat enameled wire is needed to meet the needs of modern industry. Utility Model Content

[0004] In order to solve the above technical problems, a high-strength flat enameled wire is provided.

[0005] To achieve the above-mentioned purpose, the utility model discloses a high-strength flat enameled wire, including an enameled wire body, the enameled wire body including, from inside to outside, a conductor layer, an insulating layer and a paint film layer, the conductor layer is formed by twisting at least two alloy conductors and pressing them into an oblate conductor structure, the outer side of the conductor layer is coated with an insulating layer, an adhesive material is filled between the conductor layer and the insulating layer, an engaging groove is provided on the outer wall surface of the conductor layer, an anti-tensile layer is provided in the engaging groove, a nylon belt is wrapped around the outer side of the anti-tensile layer to fix the anti-tensile layer and the insulating layer, and a paint film layer is coated on the outer side of the nylon belt.

[0006] Furthermore, the engaging groove on the outer wall surface of the insulating layer includes a recessed mounting portion and a positioning portion located at the center of the mounting portion, and a positioning block that fits with the positioning portion is provided at the bottom of the tensile layer.

[0007] Furthermore, a side of the anti-tensile layer away from the positioning block is provided with positioning grooves arranged at equal intervals, and the positioning grooves are arranged obliquely with respect to the length direction of the anti-tensile layer.

[0008] Furthermore, the thickness of the tensile layer is greater than the depth of the mounting portion.

[0009] Furthermore, the insulating layer is formed by glue injection and adhered to the conductor layer, and the specification of the conductor layer is adjusted by the twisting pitch and twisting direction.

[0010] Furthermore, the nylon belt is wound around the surface of the insulating layer along the positioning groove, and the thickness of the nylon belt does not exceed the depth of the positioning groove.

[0011] Furthermore, the paint film layer includes a primer film bonded to the insulating layer and a top paint film arranged on the outside of the primer film.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model discloses a high-strength flat enameled wire, which uses a high-strength alloy material as a conductor, optimizes the geometric structure of the wire, achieves better bendability and torsion resistance, and uses a special coating technology to improve the corrosion resistance and insulation performance of the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is an explosion diagram of the utility model.

[0015] Figure 2 It is a cross-sectional view of the utility model.

[0016] Figure 3 It is a schematic diagram of the tensile layer of the utility model.

[0017] Figure 4 For this utility model Figure 1 A partial view of.

[0018] In the figure: 1 is the conductor layer; 2 is the insulating layer; 21 is the mounting portion; 22 is the positioning portion; 3 is the paint film layer; 31 is the primer film; 32 is the topcoat film; 4 is the tensile layer; 41 is the positioning block; 42 is the positioning groove; 5 is the nylon belt. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0020] An embodiment of the utility model, as Figure 1 and Figure 2As shown, the enameled wire body includes a conductor layer 1, an insulating layer 2 and a paint film layer 3 from the inside to the outside. The conductor layer 1 is formed by twisting at least two alloy conductors and then pressing them into an oblate conductor structure. The overall strength is improved and the resistance is reduced by twisting. The alloy conductor is composed of copper and other high-strength elements and is made by a special metallurgical process. The microstructure of the alloy structure is optimized and has high strength and good conductivity. The insulating layer 2 is coated on the outside of the conductor layer 1, and an adhesive material is filled between the conductor layer 1 and the insulating layer 2. An engaging groove is provided on the outer wall surface of the conductor layer 1, and an anti-tensile layer 4 is provided in the engaging groove. A nylon tape 5 is wrapped around the outside of the anti-tensile layer 4 to fix the anti-tensile layer 4 to the insulating layer 2, and a paint film layer 3 is coated on the outside of the nylon tape 5. The thermal shock temperature of the high-strength flat enameled wire can reach 260°C, the breakdown voltage is 700V, and the elongation is ≥30%. A high-strength alloy material is used as a conductor, the geometric structure of the wire is optimized, and better bendability and torsion resistance are achieved. A special coating technology is used to improve the corrosion resistance and insulation performance of the wire.

[0021] like Figure 4 As shown, the engaging groove on the outer wall of the insulating layer 2 includes a recessed mounting portion 21 and a positioning portion 22 located at the center of the mounting portion 21, and a positioning block 41 that fits with the positioning portion 22 is provided at the bottom of the tensile layer 4 to assist in the installation and fixation of the tensile layer.

[0022] like Figure 3 As shown, one side of the tensile layer 4 away from the positioning block 41 is provided with equally spaced positioning grooves 42, and the positioning grooves 42 are inclined with respect to the length direction of the tensile layer 4 to provide positioning for the nylon belt 5, fix the tensile layer 4 on the surface of the insulating layer 2 to avoid displacement, and the tensile layer improves the overall bending resistance of the wire, while avoiding damage to the conductor layer and improving the structural strength of the wire.

[0023] The insulating layer 2 is formed by injection molding and adhered to the conductor layer 1. The specification of the conductor layer 1 is adjusted by the twisting pitch and twisting direction, including changing the parameters such as the width, thickness and shape of the wire, so as to further improve the mechanical properties and electrical stability of the wire.

[0024] The thickness of the tensile layer 4 is greater than the depth of the mounting portion 21. The nylon belt 5 is wound around the surface of the insulating layer 2 along the positioning groove 42. The thickness of the nylon belt 5 does not exceed the depth of the positioning groove 42. The nylon belt 5 applies radial force to the tensile layer 4 during the winding process. The positioning groove 42, whose depth is greater than the thickness of the nylon belt 5, exerts force on the nylon belt along the axial direction of the enameled wire, further enhancing the fixing effect.

[0025] The paint film layer 3 includes a primer film 31 bonded to the insulating layer 2 and a topcoat film 32 arranged on the outside of the primer film 31. As a preferred embodiment of the present application, the paint film layer 3 is made of materials such as polyimide, fluoroplastic or silicone rubber, and has excellent high temperature resistance, corrosion resistance and insulation properties, ensuring the mechanical stability and electrical properties of the wire at high temperatures.

[0026] Working principle: Select appropriate alloy materials and coating materials, design and manufacture molds with special requirements, twist and press the wires according to the geometric structure design, perform shaping and curing treatment and special coating treatment on the twisted and pressed wires, and finally cut and inspect to complete product packaging.

[0027] Several points that need to be explained are: First, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two elements, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change; secondly, in this article, relational terms such as first and second, etc. are only used to distinguish one entity from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities.

[0028] The above examples are merely illustrative of the present utility model and do not constitute a limitation on the protection scope of the present utility model. All designs that are identical or similar to the present utility model fall within the protection scope of the present utility model.

Claims

1. A high-strength flat enameled wire, comprising an enameled wire body, characterized in that: The enameled wire body comprises, from inside to outside, a conductor layer (1), an insulating layer (2) and a paint film layer (3); the conductor layer (1) is formed by twisting at least two strands of alloy conductors and then pressing them into an oblate conductor structure; the outer side of the conductor layer (1) is coated with an insulating layer (2); an adhesive material is filled between the conductor layer (1) and the insulating layer (2); an engaging groove is provided on the outer wall surface of the conductor layer (1); a tensile layer (4) is provided in the engaging groove; a nylon tape (5) is wound around the outer side of the tensile layer (4) to fix the tensile layer (4) and the insulating layer (2); and the outer side of the nylon tape (5) is coated with a paint film layer (3).

2. A high-strength flat enameled wire according to claim 1, characterized in that: The engaging groove on the outer wall surface of the insulating layer (2) comprises a recessed mounting portion (21) and a positioning portion (22) located at the center of the mounting portion (21), and a positioning block (41) that fits with the positioning portion (22) is provided at the bottom of the tensile layer (4).

3. A high-strength flat enameled wire according to claim 2, characterized in that: A side of the tensile layer (4) away from the positioning block (41) is provided with positioning grooves (42) arranged at equal intervals, and the positioning grooves (42) are arranged obliquely with respect to the length direction of the tensile layer (4).

4. A high-strength flat enameled wire according to claim 3, characterized in that: The thickness of the tensile layer (4) is greater than the depth of the mounting portion (21).

5. A high-strength flat enameled wire according to claim 2, characterized in that: The insulating layer (2) is formed by glue injection and adhered to the conductor layer (1); the specification of the conductor layer (1) is adjusted by the twisting pitch and twisting direction.

6. A high-strength flat enameled wire according to claim 1, characterized in that: The nylon belt (5) is wound around the surface of the insulating layer (2) along the positioning groove (42), and the thickness of the nylon belt (5) does not exceed the depth of the positioning groove (42).

7. A high-strength flat enameled wire according to claim 1, characterized in that: The paint film layer (3) comprises a primer film (31) bonded to the insulating layer (2) and a top paint film (32) arranged outside the primer film (31).

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