Defluorination environment-friendly oil-resistant high-temperature-resistant ultra-thin-wall electric wire for steam

Abstract

The utility model discloses a defluorination environment-friendly oil-resistant high-temperature-resistant ultra-thin-wall electric wire for steam, which comprises a plurality of wire main bodies, the wire main bodies are twisted leftwards according to a 1 + 6 + 12 + 18 mode to form an electric wire unit, the wire main bodies are arranged in a filling layer, and the outer side of the filling layer is sequentially provided with a connecting layer, a shielding layer, a fireproof layer and an outer protective layer. The cable is scientific and reasonable in structural design, and the conductor structure adopts a regular stranded structure, so that the conductor has stability; the insulation adopts specially selected new polyetherketoneketone as an outer coating material, has the properties of high temperature resistance, scratch and abrasion resistance, corrosion resistance, delayed combustion resistance and the like, is used in automobile cables, and can cover all the automobile cables.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile wire equipment, in particular to a fluorine-free, environmentally friendly, oil-resistant and high-temperature-resistant ultra-thin-wall wire for automobiles. Background Art

[0002] The electronic technology content and quantity of automotive lighting wires in the car have gradually become an important indicator for evaluating the performance of the car. With the substantial improvement of the level of electronicization, intelligence and automation of the entire vehicle, new and higher requirements have been put forward for the various performances and quality of automotive wires. The existing automotive high-temperature wires used in the market use fluorine-containing insulation as the outer sheath material. Fluorine-containing materials (ETFE / FEP / PFA) are basically the only choice in the automotive field with their ultra-high temperature resistance and super liquid resistance in the temperature environment of 150℃-250℃ and resistance to a variety of automotive liquid applications.

[0003] However, with the extensive application in the market, dental fluorosis and skeletal fluorosis caused by fluoride poisoning have appeared in large numbers, and because of its gene mutagenicity, it has been listed as a permanent and persistent pollutant. Many countries have strictly controlled fluoride and its derivatives, and defluorination is imperative. Now, high-temperature resistant wires for automobiles urgently need to find materials that can withstand high temperatures, liquids, oils, and chemical reagents to replace them. To this end, we propose a defluorinated, environmentally friendly, oil-resistant, and high-temperature resistant ultra-thin-wall wire for automobiles. Utility Model Content

[0004] The utility model aims to provide a defluorinated, environmentally friendly, oil-resistant and high-temperature-resistant ultra-thin-wall electric wire for automobile use, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a defluorinated, environmentally friendly, oil-resistant and high-temperature-resistant ultra-thin-wall electric wire for automobiles, comprising a plurality of wire bodies, the wire bodies being twisted to the left in a 1+6+12+18 manner to form a wire unit, the wire bodies being arranged in a filling layer, a connecting layer, a shielding layer, a fireproof layer and an outer protective layer being arranged in sequence on the outside of the filling layer, and elastic columns and a reinforcing core being arranged in the filling layer.

[0006] In the above solution, the conductor body includes a wire core and an inner protective layer.

[0007] In the above solution, the cross-sectional area of ​​the wire body is 0.22-2.5 mm2.

[0008] In the above solution, the outer protective layer is a PEKK polyetherketoneketone layer.

[0009] Compared with the prior art, the utility model has the following beneficial effects: the defluorinated, environmentally friendly, oil-resistant and high-temperature-resistant ultra-thin-wall electric wire for automobiles has a simple and reasonable structural design and strong practicality. The outer surrounding protection mechanism formed by sequentially arranging a connection layer, a shielding layer, a fireproof layer and an outer protective layer on the outside of the wire body, all materials are environmentally friendly materials, the product is environmentally friendly, and has no harmful effects on the environment and people. The product is environmentally friendly, replaces the original fluorine element that is harmful to the body, increases the diversity of products, and has no harmful effects on the environment and people.

[0010] The conductor structure adopts a regular twisted structure to make the conductor stable; the insulation adopts specially selected new polyetherketoneketone as the outer sheath material, which has the properties of high temperature resistance, scratch resistance, corrosion resistance, and flame retardancy. This product is used in automotive cables, and its performance can cover all automotive cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model.

[0012] Figure 2 It is a schematic diagram of the structure of the utility model.

[0013] In the figure: 1. conductor body 101, wire core 102, inner protective layer 11, elastic column 12, reinforcing core 13, filling layer 14, connecting layer 15, shielding layer 16, fireproof layer 17, outer protective layer. DETAILED DESCRIPTION

[0014] 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 scope of protection of the utility model.

[0015] See also Figure 1-2 The utility model provides a technical solution: a defluorinated, environmentally friendly, oil-resistant and high-temperature-resistant ultra-thin-wall electric wire for automobiles, comprising a plurality of wire bodies 1, which are twisted to form a wire unit in a left direction in a 1+6+12+18 manner, and the wire bodies 1 are arranged in a filling layer 13, and a connecting layer 14, a shielding layer 15, a fireproof layer 16 and an outer protective layer 17 are sequentially arranged on the outside of the filling layer 13. Specifically, the connecting layer 14 is a natural rubber extrusion layer, which is not only easy to obtain but also has good elasticity. The shielding layer 15 is a metal shielding layer, and the fireproof layer 16 uses non-combustible materials to improve the fireproof performance of the structure.

[0016] The product has a single core structure. The conductor is made of soft round copper wire or tinned soft round copper wire with a purity of more than 99.99%. The cross-section is (0.22f-2.5f) mm2. The conductor single wire is twisted in layers. The conductor is twisted in a regular 1+6+12+18 structure. The twisting direction is left-handed to ensure that the conductor has a stable structure when bent. The conductor is formed by drawing a tube, and a layer of insulation is evenly extruded. The insulation adopts a new polyetherketoneketone material PEKK (temperature range: (-40~+250)℃). The thinnest point of the insulation is not less than 80% of the nominal thickness of the insulation. To ensure that the outer diameter is not greater than the use requirements, the concentricity must reach more than 85%.

[0017] FLRNY 0.22f~2.5f, the conductor is a bare soft round copper wire, the conductor is in a regular twisted structure of 1+6+12+18, an insulating layer is uniformly extruded outside the conductor, and the insulation adopts a new polyetherketoneketone PEKK material for thin-wall extrusion production. The material needs to be dried before extrusion molding. The drying equipment must be able to reach a temperature of at least 120°C and the drying system should be able to maintain the recommended drying time in a continuous operation mode, usually 6 hours under the above conditions. The metal or ceramic heater on the extruder barrel must cover the entire surface of the metal barrel and be heated to 400°C±5°C to ensure uniform temperature distribution.

[0018] The fireproof layer 16 is made of flame-retardant polyvinyl chloride material, which not only has good toughness but also has good insulation performance, and can effectively strengthen the insulation protection of the device and improve the fire resistance of the device.

[0019] In the above solution, the conductor body 1 includes a wire core 101 and an inner protective layer 102. The inner protective layer 102 can be a polyethylene layer.

[0020] In the above solution, the cross-sectional area of ​​the wire body 1 is 0.22-2.5 mm2.

[0021] In the above scheme, the outer protective layer 17 is a PEKK polyetherketoneketone layer. A new insulating outer sheath material is developed to replace the original fluorine-containing material. PEKK (polyetherketoneketone) is a member of the polyaryletherketone family. It is composed of semi-crystalline thermoplastics and has excellent chemical resistance, high temperature performance and high mechanical strength. The continuous use temperature is 250-260°C, and the short-time exposure temperature can reach 300°C. It has unique strength, stiffness, impact resistance, wear resistance, tensile resistance, excellent flame retardancy, inherent flame retardancy and low smoke. High dielectric strength, good insulation performance, and high breakdown voltage. It is suitable for a variety of processing technologies, such as injection molding, extrusion, 3D printing, powder coating, unidirectional prepreg tape, etc., with a wide processing window. The above materials do not contain fluorine elements, and their performance can meet the physical and chemical requirements of multiple locations, multiple environments, multiple temperature ranges, and multiple environments in automobiles. They are used as new extrusion materials to replace the original fluoroplastics as insulating outer sheaths.

[0022] In the above solution, the elastic column 11 and the reinforcing core 12 are arranged in the filling layer 13, so as to enhance the anti-fracture performance of the device and prolong the service life of the device.

[0023] Working principle:

[0024] This kind of defluorinated, environmentally friendly, oil-resistant and high-temperature-resistant ultra-thin-wall wire for automobiles has a conductor with a regular 1+6+12+18 twisted structure, and an insulating layer is uniformly extruded outside the conductor. The insulation adopts a new polyetherketoneketone PEKK material and is produced by thin-wall extrusion. An outer surrounding protection mechanism is formed by sequentially arranging a connection layer 14, a shielding layer 15, a fireproof layer 16 and an outer protective layer 17 on the outside of the conductor body 1. All materials are environmentally friendly materials, the product is environmentally friendly, and has no harmful effects on the environment and people. All materials are environmentally friendly materials, the product is environmentally friendly, and replaces the original fluorine element that is harmful to the body, increases product diversification, and has no harmful effects on the environment and people.

[0025] The conductor structure adopts a regular twisted structure to make the conductor stable; the insulation adopts specially selected new polyetherketoneketone as the outer sheath material, which has the properties of high temperature resistance, scratch resistance, corrosion resistance, and flame retardancy. This product is used in automotive cables, and its performance can cover all automotive cables.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A defluorinated, environmentally friendly, oil-resistant and high-temperature-resistant ultra-thin-wall electric wire for automobiles, comprising a plurality of wire bodies (1), characterized in that: The conductor body (1) is twisted in a left direction in a 1+6+12+18 manner to form a wire unit. The conductor body (1) is arranged in a filling layer (13). A connection layer (14), a shielding layer (15), a fireproof layer (16) and an outer protective layer (17) are arranged in sequence outside the filling layer (13). An elastic column (11) and a reinforcing core (12) are arranged in the filling layer (13).

2. According to claim 1, a defluorinated, environmentally friendly, oil-resistant, and high-temperature-resistant ultra-thin-wall electric wire for automobile use, characterized in that: The conductor body (1) comprises a wire core (101) and an inner protective layer (102).

3. The defluorinated, environmentally friendly, oil-resistant, and high-temperature-resistant ultra-thin-wall electric wire for automobile use according to claim 1, characterized in that: The cross-sectional area of ​​the conductor body (1) is 0.22-2.5 mm 2 .

4. The defluorinated, environmentally friendly, oil-resistant, and high-temperature-resistant ultra-thin-wall electric wire for automobile use according to claim 1, characterized in that: The outer protective layer (17) is a PEKK polyetherketoneketone layer.

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