A thick paint film large size enameled round aluminum wire and its production process

Abstract

The present invention relates to the technical field of large-size enameled round aluminum wires. The present invention discloses a thick paint film large-size enameled round aluminum wire and a production process, including an aluminum wire body, a flame retardant layer fixed on the outside of the aluminum wire body, an insulating layer fixed on the outside of the flame retardant layer, and a heat-conducting ring fixed on the inner wall of the flame retardant layer. The thick paint film large-size enameled round aluminum wire can achieve the purpose of anti-displacement, protection and heat dissipation through the coordinated use of the aluminum wire body, anti-slip groove, flame retardant layer, insulating layer, heat-conducting ring, heat-conducting sheet and heat-dissipating buffer pad. The anti-slip groove limits the aluminum wire body to prevent the aluminum wire body from moving around. The flame retardant layer can play a flame retardant role, the insulating layer can play an insulating role, and the heat-dissipating buffer pad can play a buffering and protective role, which is convenient for comprehensive protection of the aluminum wire body. The heat-conducting ring and the heat-conducting sheet can conduct the heat on the aluminum wire body to the outside, and the heat-conducting sheet is directly in contact with the outside air to achieve the effect of heat dissipation.

Description

Technical Field

[0001] The present invention relates to the relevant technical field, and in particular to a thick paint film large-size enameled round aluminum wire and a production process. Background Art

[0002] Aluminum wire refers to a metal wire material made of pure aluminum or aluminum alloy with uniform cross-section along its entire longitudinal length. It is a product processed along the center pressure and delivered in rolls. The cross-sectional shapes include round, oval, square, rectangular, equilateral triangle and regular polygon. Enameled wire is a major variety of winding wire, generally composed of a conductor and an insulating layer. Its application areas include inductance coils, electromagnetic coils, AC and DC motors, automotive industry, etc.

[0003] It is now found that the aluminum wire in the prior art is typically as disclosed in CN118969366A, a high-voltage composite polyamide-imide enameled round aluminum wire, comprising a conductor, a polyamide-imide coating and a polyester-imide paint coating; the polyamide-imide coating is prepared by the following steps: adding 50-60 parts of polyamide-imide resin, 10-15 parts of functional filler and 2-5 parts of polyphenylene sulfide to 50-80 parts of N-methylpyrrolidone, heating to 45-60°C, stirring The polyamide-imide coating is evenly coated on the surface of the conductor and solidified to obtain a polyamide-imide coating. The high-voltage resistant composite polyamide-imide enameled round aluminum wire is prepared by the following steps: the surface of the round aluminum wire is evenly coated with a polyamide-imide coating to form a polyamide-imide coating, and then a polyester-imide coating is coated, and after solidification, a polyamide-imide enameled round aluminum wire is obtained, and finally a layer of surface lubricant is coated on the surface of the polyamide-imide enameled round aluminum wire, so that the enameled wire can be tightly arranged when it is wound up and it is convenient for users to wind the coil.

[0004] During the production process of existing round aluminum wires, protective components are generally wrapped directly on the surface of the aluminum wires. The connection between the aluminum wires and external components is not tight and firm enough, the aluminum wires are prone to displacement, and the aluminum wires are generally fully wrapped, resulting in poor heat dissipation. In view of the above problems, existing equipment needs to be improved. Summary of the invention

[0005] The object of the present invention is to provide a thick paint film large-size enameled round aluminum wire and a production process, so as to solve the problems mentioned in the above background technology that in the production process of the existing round aluminum wire, a protective component is generally directly wrapped on the surface of the aluminum wire, the connection between the aluminum wire and the external component is not tight and firm enough, the aluminum wire is prone to displacement, and the aluminum wire is generally fully wrapped, resulting in poor heat dissipation effect.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a thick paint film large-size enameled round aluminum wire and a production process, comprising an aluminum wire body, a flame retardant layer is fixed on the outside of the aluminum wire body, an insulating layer is fixed on the outside of the flame retardant layer, and a heat conductive ring is fixed on the inner wall of the flame retardant layer.

[0007] Preferably, a hemispherical anti-skid groove is provided on the outer side of the aluminum wire body, the flame retardant layer is snap-connected in the anti-skid groove, and the anti-skid groove is evenly distributed on the aluminum wire body in the circumferential direction.

[0008] Through the above technical solution, the anti-slip groove plays a role of limiting the aluminum wire body.

[0009] Preferably, a heat-conducting sheet is fixed to the outer side of the heat-conducting ring, and the heat-conducting sheet is evenly distributed on the heat-conducting ring in the circumferential direction, and the heat-conducting rings are evenly distributed on the flame-retardant layer.

[0010] Through the above technical solution, the use of heat-conducting rings and heat-conducting sheets can achieve the effect of heat conduction and heat dissipation.

[0011] Preferably, a heat dissipation buffer pad is fixed to the outer side of the insulating layer, and the heat dissipation buffer pad is evenly distributed on the insulating layer in a circumferential direction, and the thermal conductive sheet passes through the flame retardant layer, the insulating layer and the heat dissipation buffer pad.

[0012] Through the above technical solution, the heat dissipation buffer pad can play a role of buffering and protection.

[0013] A production process for thick-film large-size enameled round aluminum wire, comprising the following steps: S1. Preparing anti-skid grooves: passing the cleaned aluminum wire body through an extruder to press out anti-skid grooves at equal intervals on the circumferential surface of the aluminum wire body; S2. Install the thermal conductive ring: pass the aluminum wire body through the thermal conductive ring mold with equal spacing, pour the thermal conductive ring material into the mold, and remove the mold after cooling and shaping; S3. Install the heat dissipation cushion: Weld the heat dissipation cushions with equal spacing on the circumference of the heat conduction ring; S4, enameled refractory coating: passing the above aluminum wire body through and immersing it in the refractory coating liquid, keeping it immersed for a period of time, and then drying it; S5, enameled insulating coating: passing the above aluminum wire body through and immersing it in the insulating coating liquid, keeping it immersed for a period of time, and then drying it; S6. Polishing: Polish the surface of the heat dissipation buffer pad on the aluminum wire body to expose the heat sink.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The thick paint film large enameled round aluminum wire can achieve the purpose of anti-displacement and protection through the coordinated use of the aluminum wire body, anti-slip groove, flame retardant layer, insulating layer and heat dissipation buffer pad. The anti-slip groove limits the aluminum wire body to prevent the aluminum wire body from moving around. The flame retardant layer can play a flame retardant role, the insulating layer can play an insulating role, and the heat dissipation buffer pad can play a buffering and protective role, which is convenient for comprehensive protection of the aluminum wire body. 2. The thick paint film large enameled round aluminum wire can achieve the purpose of heat dissipation through the coordinated use of the aluminum wire body, the heat conducting ring and the heat conducting sheet. The heat conducting ring and the heat conducting sheet can conduct the heat on the aluminum wire body to the outside, and the heat conducting sheet is in direct contact with the outside air to achieve the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the front cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the connection structure of the aluminum wire body, the anti-slip groove, the flame retardant layer, the insulating layer and the heat dissipation buffer pad of the present invention; Figure 4 The figure is a schematic diagram of the connection structure of the aluminum wire body, the flame retardant layer, the insulating layer, the heat conductive ring, the heat conductive sheet and the heat dissipation buffer pad of the present invention.

[0016] In the figure: 1. Aluminum wire body; 2. Anti-slip groove; 3. Flame retardant layer; 4. Insulation layer; 5. Thermal conductive ring; 6. Thermal conductive sheet; 7. Heat dissipation buffer pad. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 4 The present invention provides a technical solution: a thick paint film large-size enameled round aluminum wire, comprising an aluminum wire body 1, a flame retardant layer 3 is fixed to the outside of the aluminum wire body 1, an insulating layer 4 is fixed to the outside of the flame retardant layer 3, and a heat conductive ring 5 is fixed on the inner wall of the flame retardant layer 3.

[0019] In this embodiment, Figure 2 and Figure 3 As shown, a hemispherical anti-skid groove 2 is provided on the outer side of the aluminum wire body 1, the flame retardant layer 3 is snap-connected in the anti-skid groove 2, and the anti-skid groove 2 is evenly distributed circumferentially on the aluminum wire body 1. The anti-skid groove 2 limits the aluminum wire body 1 to prevent the aluminum wire body 1 from displacement, and the circumferentially evenly distributed anti-skid grooves 2 have a better limiting and anti-skid effect.

[0020] In this embodiment, Figure 1 , Figure 2 and Figure 4As shown, a heat-conducting sheet 6 is fixed to the outside of the heat-conducting ring 5, and the heat-conducting sheets 6 are evenly distributed on the heat-conducting ring 5 in the circumferential direction. The heat-conducting ring 5 is evenly distributed on the flame-retardant layer 3. The combination of the heat-conducting ring 5 and the heat-conducting sheets 6 can achieve the effect of heat conduction and heat dissipation. The heat-conducting rings 5 ​​with equal intervals and the heat-conducting sheets 6 evenly distributed on their surfaces in the circumferential direction can achieve better heat conduction and heat dissipation effects.

[0021] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a heat dissipation buffer pad 7 is fixed to the outside of the insulating layer 4, and the heat dissipation buffer pad 7 is evenly distributed on the insulating layer 4 in a circumferential direction. The thermal conductive sheet 6 penetrates the flame retardant layer 3, the insulating layer 4 and the heat dissipation buffer pad 7. The heat dissipation buffer pad 7 can play a role in heat dissipation buffering, which is convenient for better protection of the device.

[0022] According to another aspect of the present invention, a production process for thick-film large-size enameled round aluminum wire is provided, comprising the following steps: S1, preparing anti-skid grooves 2: passing the cleaned aluminum wire body 1 through an extruder, and pressing out anti-skid grooves 2 at equal intervals on the circumferential surface of the aluminum wire body 1; S2, installing the heat-conducting ring 5: passing the aluminum wire body 1 through the heat-conducting ring 5 mold with equal spacing, pouring the heat-conducting ring 5 raw material into the mold, and removing the mold after cooling and shaping; S3, installing the heat dissipation buffer pads 7: welding the heat dissipation buffer pads 7 with equal spacing on the circumferential surface of the heat conducting ring 5; S4, enameling refractory coating: passing the aluminum wire body 1 through and immersing it in the refractory coating liquid, keeping it immersed for a period of time, and then drying it; S5, enameled insulating coating: passing the aluminum wire body 1 through and immersing it in the insulating coating liquid, keeping it immersed for a period of time, and then drying it; S6, polishing: polish the surface of the heat dissipation buffer pad 7 on the aluminum wire body 1 to expose the heat sink 6 on the surface.

[0023] The working principle of the device is: the anti-skid groove 2 can play the role of limiting and anti-skid, which can effectively prevent the aluminum wire body 1 from displacement, the flame retardant layer 3 and the insulating layer 4 can play the role of flame retardant and insulating respectively, and the use of the heat conductive ring 5 and the heat conductive sheet 6 can play the role of heat conduction. The heat conductive sheet 6 directly contacts the external air to achieve the effect of heat dissipation. The heat dissipation buffer pad 7 can play the role of heat dissipation protection, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0024] In summary, the thick paint film large-size enameled round aluminum wire and its production process achieve the purpose of anti-displacement, protection and heat dissipation, and meet people's usage needs.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A thick-film large-size enameled round aluminum wire, comprising an aluminum wire body (1), characterized in that: A flame retardant layer (3) is fixed on the outer side of the aluminum wire body (1), an insulating layer (4) is fixed on the outer side of the flame retardant layer (3), and a heat conducting ring (5) is fixed on the inner wall of the flame retardant layer (3).

2. The thick-film large-size enameled round aluminum wire according to claim 1, characterized in that: A hemispherical anti-skid groove (2) is provided on the outer side of the aluminum wire body (1), the flame retardant layer (3) is snap-connected in the anti-skid groove (2), and the anti-skid grooves (2) are evenly distributed on the aluminum wire body (1) in the circumferential direction.

3. The thick-film large-size enameled round aluminum wire according to claim 1, characterized in that: A heat conducting sheet (6) is fixed to the outer side of the heat conducting ring (5), and the heat conducting sheet (6) is evenly distributed on the heat conducting ring (5) in the circumferential direction, and the heat conducting rings (5) are evenly distributed on the flame retardant layer (3).

4. The thick-film large-size enameled round aluminum wire according to claim 3, characterized in that: A heat dissipation buffer pad (7) is fixed to the outside of the insulating layer (4), and the heat dissipation buffer pad (7) is evenly distributed on the insulating layer (4) in the circumferential direction, and the heat conducting sheet (6) penetrates the flame retardant layer (3), the insulating layer (4) and the heat dissipation buffer pad (7).

5. A production process of thick-film large-size enameled round aluminum wire, applied to a thick-film large-size enameled round aluminum wire according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1. Preparing anti-skid grooves (2): passing the cleaned aluminum wire body (1) through an extruder to press out anti-skid grooves (2) at equal intervals on the circumferential surface of the aluminum wire body (1); S2, installing the heat-conducting ring (5): passing the aluminum wire body (1) through a heat-conducting ring (5) mold with equal spacing, pouring the heat-conducting ring (5) raw material into the mold, and removing the mold after cooling and shaping; S3, installing the heat dissipation buffer pads (7): welding the heat dissipation buffer pads (7) at equal intervals on the circumferential surface of the heat conduction ring (5); S4, enameling refractory coating: passing the aluminum wire body (1) through and immersing it in refractory coating liquid, keeping it immersed for a period of time, and then drying it; S5, enameled insulating coating: passing the aluminum wire body (1) through and immersing it in insulating coating liquid, keeping it immersed for a period of time, and then drying it; S6, polishing: polishing the surface of the heat dissipation buffer pad (7) on the aluminum wire body (1) so that the heat sink (6) is exposed on the surface.

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