Conductor optimization structure of low-loss insulated electromagnetic wire

Abstract

The utility model relates to a conductor optimization structure of a low-loss insulated electromagnetic wire, which belongs to the technical field of electromagnetic wires and comprises a conductor formed by twisting a plurality of wires into a whole, an insulating layer is arranged outside the conductor, a heat absorption layer is arranged outside the insulating layer, the heat absorption layer is composed of a metal foil shell and heat absorption powder, and a supporting inner layer is arranged outside the heat absorption layer. The anti-compression member is arranged outside the supporting inner layer, the supporting outer layer is arranged outside the anti-compression member, the wear-resistant layer is arranged outside the supporting outer layer, and the conductor in the electromagnetic wire is formed by twisting a plurality of wires, so that the surface area of the conductor can be increased, and the loss caused by the skin effect and the proximity effect can be reduced; meanwhile, heat generated in the electromagnetic wire can be absorbed through the special design of the heat absorption layer and the compression-resistant part, the heat resistance of the electromagnetic wire is improved, and the exterior of the electromagnetic wire can have excellent wear resistance and ultraviolet resistance through the compression resistance of the electromagnetic wire, the design of the wear-resistant layer and the selection of materials.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of conductor optimization structure of low-loss insulation electromagnetic wire, belong to electromagnetic wire technical field. BACKGROUND

[0002] Electromagnetic wire is insulated wire used to make coil or winding in electrical product, also called winding wire, electromagnetic wire must meet multiple use and manufacturing process requirements, former includes its shape, specification, short time and long term at high temperature work, and withstand certain occasions in intense vibration and centrifugal force under high speed, high voltage withstand corona and breakdown under, chemical corrosion under special atmosphere etc.;The latter includes winding and embedding wire withstand stretching, bending and abrasion requirements, and swelling, erosion effect in impregnation and drying process etc.。

[0003] Such as patent publication No. CN204577136U discloses a kind of sealed water-resistant electromagnetic wire, including copper flat conductor and the insulating layer covered on copper flat conductor, insulating layer includes by inside to outside sequentially covered on copper flat conductor first insulating layer and second insulating layer, first insulating layer is double-sided fluorine-coated polyimide-fluorine 46 composite film strip and is wrapped around copper flat conductor to form composite film layer, second insulating layer is glass fiber layer formed by wrapping glass fiber impregnated with insulating varnish or insulating resin on first insulating layer.The utility model electromagnetic wire has good sealing performance, good water resistance, can work stably in water for a long time, has good application prospect.

[0004] Although the above patent equipment can improve the water resistance of electromagnetic wire, the internal conductor of electromagnetic wire will generate heat during electrification, and the electromagnetic wire of existing equipment is poor in improving the heat resistance of electromagnetic wire, and the compression resistance of existing electromagnetic wire is poor, which is easy to damage under high pressure, so it needs to be improved.

[0005] Therefore, the utility model is proposed. UTILITY MODEL CONTENT

[0006] The utility model aims at solving the above problems to provide a kind of conductor optimization structure of low-loss insulation electromagnetic wire, can improve the heat resistance and pressure resistance of electromagnetic wire.

[0007] The utility model realizes the above-mentioned purposes by the following technical solutions, a kind of conductor optimization structure of low-loss insulation electromagnetic wire, including the conductor that by the stranding of multiple wires is integrated, the outside of the conductor is provided with insulating layer, the outside of the insulating layer is provided with heat-absorbing layer, the heat-absorbing layer is composed of metal foil shell and heat-absorbing powder, the outside of the heat-absorbing layer is provided with support inner layer, the outside of the support inner layer is provided with compression-resistant piece, the outside of the compression-resistant piece is provided with support outer layer, the outside of the support outer layer is provided with wear-resistant layer.

[0008] Preferably, in order to improve the insulation of the conductor, the insulating layer is a ring-shaped closed structure composed of glass fibers.

[0009] Preferably, in order to accommodate the heat-absorbing powder, the metal foil shell in the heat-absorbing layer is arranged in a ring shape, the heat-absorbing powder is filled in the metal foil shell, and the heat-absorbing powder is aluminum oxide powder.

[0010] Preferably, in order to improve the strength of the support inner layer and the support outer layer, the support inner layer is sleeved outside the metal foil shell, and the support inner layer and the support outer layer are both made of natural mica.

[0011] Preferably, in order to fix the compression-resistant piece, the compression-resistant piece is a rod-shaped structure composed of silica gel, the compression-resistant piece is circumferentially arranged between the support inner layer and the support outer layer, and the two ends of the compression-resistant piece are fixedly connected between the support inner layer and the support outer layer through a hot pressing process.

[0012] Preferably, in order to avoid the entry of external liquid into the electromagnetic wire, a waterproof and breathable film is arranged between the support outer layer and the wear-resistant layer.

[0013] Preferably, in order to improve the heat dissipation effect, a plurality of micropores are arranged on the outer circumferential surface of the wear-resistant layer.

[0014] Preferably, in order to improve the wear resistance and the anti-ultraviolet effect, the wear-resistant layer is composed of polyimide.

[0015] The conductor in the electromagnetic wire is twisted together by a plurality of wires, thereby increasing the surface area of the conductor, thereby reducing the loss caused by the skin effect and the proximity effect, and simultaneously absorbing the heat generated in the electromagnetic wire through the special design of the heat-absorbing layer and the compression-resistant piece, improving the heat resistance of the electromagnetic wire, and simultaneously improving the wear resistance and the anti-ultraviolet performance of the electromagnetic wire through the design and material selection of the wear-resistant layer and the compression performance of the electromagnetic wire. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the distribution position of the compression-resistant piece of the utility model.

[0018] Figure 3 It is a schematic diagram of the structure of the heat-absorbing layer of the utility model.

[0019] Figure 4 It is Figure 1 It is a structure enlarged view of A in the middle.

[0020] In the figure: 1, conductor; 2, insulating layer; 3, heat absorption layer; 301, metal foil shell; 302, heat absorption powder; 4, support inner layer; 5, pressure resistance; 6, support outer layer; 7, wear-resistant layer; 8, waterproof and breathable film; 9, microporous. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figures 1-4 As shown in the figure, a low-loss insulating electromagnetic wire conductor optimization structure, including by a plurality of conductor 1 twisted into one, the conductor can choose high conductivity of copper alloy, the outside of the conductor 1 is provided with an insulating layer 2, the outside of the insulating layer 2 is provided with a heat absorption layer 3, the heat absorption layer 3 is composed of metal foil shell 301 and heat absorption powder 302, the outside of the heat absorption layer 3 is provided with a support inner layer 4, the outside of the support inner layer 4 is provided with a pressure resistance 5, the outside of the pressure resistance 5 is provided with a support outer layer 6, the outside of the support outer layer 6 is provided with a wear-resistant layer 7.

[0023] As Figure 2 As shown in the figure, the insulating layer 2 is a ring-shaped closed structure composed of glass fiber, which has high mechanical strength and good insulation performance, and can be used to strengthen the insulation and mechanical properties of the electromagnetic wire. The glass fiber material has high tensile strength and bending strength. When the electromagnetic wire may be subjected to external forces such as pulling, bending, etc. during installation, or subjected to mechanical stress due to vibration, collision, etc. during equipment operation, the insulating layer 2 composed of glass fiber can effectively resist these external forces by virtue of its high mechanical strength, prevent the conductor part of the electromagnetic wire from being damaged or broken due to external mechanical damage, and has good insulation performance, almost no conduction, which can greatly hinder the leakage of current.

[0024] As Figure 3 As shown in the figure, the metal foil shell 301 in the heat absorption layer 3 is arranged in a ring shape, and the heat absorption powder 302 is filled in the metal foil shell 301. The heat absorption powder 302 is aluminum oxide powder. It should be noted that the metal foil shell 301 is a ring structure with a hollow inside, and the heat absorption powder 302 is filled in the inside.

[0025] As Figure 2As shown, the inner support layer 4 is sleeved on the outside of the metal foil shell 301. Both the inner support layer 4 and the outer support layer 6 are made of natural mica. It should be noted that natural mica has excellent electrical insulation properties, high resistance, low dielectric loss and good voltage resistance. It can effectively isolate current, prevent leakage and breakdown, and improve the heat resistance of the electromagnetic wire.

[0026] like Figure 2 As shown, the pressure-resistant component 5 is a rod-shaped structure made of silicone material. The pressure-resistant component 5 is circumferentially arranged between the inner support layer 4 and the outer support layer 6, and the two ends of the pressure-resistant component 5 are fixedly connected to the inner support layer 4 and the outer support layer 6 respectively by a hot pressing process. This design of the pressure-resistant component 5 can improve the overall pressure resistance of the electromagnetic wire. The silicone material has good elasticity and flexibility. When subjected to external pressure, it can buffer the pressure through its own deformation, thereby effectively improving the overall pressure resistance of the electromagnetic wire. Whether it is the squeezing that may be subjected to during installation or the pressure generated by changes in the surrounding environment during equipment operation, the pressure-resistant component 5 can play its role in protecting the internal structure of the electromagnetic wire from damage.

[0027] like Figure 2 As shown, a waterproof and breathable membrane 8 is provided between the outer supporting layer 6 and the wear-resistant layer 7. Micropores 9 are distributed on the outer circumferential surface of the wear-resistant layer 7. The wear-resistant layer 7 is made of polyimide material. The design of the micropores 9 can improve the heat dissipation effect inside the electromagnetic wire. At the same time, the waterproof and breathable membrane 8 can isolate external liquids and ensure the heat dissipation effect inside the electromagnetic wire. Polyimide has outstanding high temperature resistance, and the long-term operating temperature can reach above 250℃. It can withstand even higher temperatures in the short term. At the same time, polyimide has high mechanical strength and good wear resistance, which can effectively resist friction and wear. In addition, it also has good UV resistance and is not easy to age and degrade under UV radiation, thereby improving the service life of the electromagnetic wire.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A conductor optimization for low-loss insulated magnet wire, characterized by: The utility model provides a kind of cable, including the conductor (1) by a plurality of wires is twisted into one, the outer of the conductor (1) is provided with insulating layer (2), the outer of the insulating layer (2) is provided with heat-absorbing layer (3), the heat-absorbing layer (3) is composed of metal foil shell (301) and heat-absorbing powder (302), the outer of the heat-absorbing layer (3) is provided with support inner layer (4), the outer of the support inner layer (4) is provided with compression piece (5), the outer of the compression piece (5) is provided with support outer layer (6), the outer of the support outer layer (6) is provided with wear-resistant layer (7).

2. The conductor optimization for low loss insulated magnet wire of claim 1, wherein: The insulating layer (2) is a ring-shaped closed structure composed of glass fibers.

3. The conductor optimization for low loss insulated magnet wire of claim 1, wherein: The metal foil shell (301) in the heat-absorbing layer (3) is arranged in a ring shape, the heat-absorbing powder (302) is filled inside the metal foil shell (301), and the heat-absorbing powder (302) is aluminum oxide powder.

4. The conductor optimization for low loss insulated magnet wire of claim 3, wherein: The support inner layer (4) is sleeved outside the metal foil shell (301), and the support inner layer (4) and the support outer layer (6) are both made of natural mica.

5. The conductor optimization for low loss insulated magnet wire of claim 1, wherein: The compression piece (5) is a rod-shaped structure made of silica gel material, the compression piece (5) is circumferentially arranged between the support inner layer (4) and the support outer layer (6), and the two ends of the compression piece (5) are fixedly connected with the support inner layer (4) and the support outer layer (6) by a hot-pressing process.

6. The conductor optimization for low loss insulated magnet wire of claim 1, wherein: A waterproof and breathable film (8) is arranged between the support outer layer (6) and the wear-resistant layer (7).

7. The conductor optimization for low loss insulated magnet wire of claim 1, wherein: Micro-holes (9) are distributed on the outer circumferential surface of the wear-resistant layer (7).

8. The conductor optimization for low loss insulation electromagnet wire of claim 1, wherein: The wear-resistant layer (7) is made of polyimide material.

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