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Heat-resistant and anti-aging automotive wire harness and preparation method thereof

An anti-aging, wire harness technology, used in the manufacture of wire harnesses, cable/conductor manufacturing, circuit/collector components, etc., can solve the problems affecting the overall performance of the wire harness, increase costs, etc., and achieve excellent flame retardancy and anti-aging performance. High practicality, high overall strength effect

Pending Publication Date: 2022-07-29
南京亿天塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Nowadays, in order to improve the heat aging resistance and flame retardant performance of the automotive wiring harnesses on the market, heat stabilizers and flame retardants are generally added to the outer sheath formula of the wiring harness. cost, and will affect the overall performance of the wiring harness, therefore, based on this situation, this application discloses a heat-resistant and anti-aging automotive wiring harness and its preparation method to solve this technical problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of a heat-resistant and anti-aging vehicle wiring harness, comprising the following steps:

[0030] (1) Take the conductive copper wire, draw it by a wire drawing machine, and obtain a copper wire that meets the specifications. The surface is tinned to obtain a tinned copper wire; the diameter of the tinned copper wire is 0.4 mm, and the The thickness of the tin layer is 1 μm.

[0031] Take four tinned copper wires and twist each other to form a wire core; cover the wire core with PTFE to form an insulating layer, the thickness of the insulating layer is 0.8mm, and then coat the outer side of the insulating layer with 15mm wide and 0.03mm thick Aluminum foil, forming an aluminum foil layer, then wrapping PTFE on the outside of the aluminum foil layer, forming an insulating layer on the outside, and the thickness of the insulating layer on the outside being 0.6mm, forming a single-strand wire harness;

[0032] (2) Take 3-5 single-strand wire bundles...

Embodiment 2

[0036] A preparation method of a heat-resistant and anti-aging vehicle wiring harness, comprising the following steps:

[0037] (1) Take the conductive copper wire, draw it by a wire drawing machine, and obtain a copper wire that meets the specifications. The surface is tinned to obtain a tinned copper wire; the diameter of the tinned copper wire is 0.4 mm, and the The thickness of the tin layer is 1.2 μm.

[0038] Take four tinned copper wires and twist each other to form a wire core; cover the wire core with PTFE to form an insulating layer, the thickness of the insulating layer is 0.6mm, and then coat the outer side of the insulating layer with 15mm wide and 0.03mm thick Aluminum foil, forming an aluminum foil layer, then wrapping PTFE on the outside of the aluminum foil layer, forming an insulating layer on the outside, and the thickness of the insulating layer on the outside being 0.5mm, forming a single-strand wire harness;

[0039] (2) Take 3-5 single-strand wire bundl...

Embodiment 3

[0043] A preparation method of a heat-resistant and anti-aging vehicle wiring harness, comprising the following steps:

[0044] (1) Take the conductive copper wire, draw it by a wire drawing machine, and obtain a copper wire that meets the specifications. The surface is tinned to obtain a tinned copper wire; the diameter of the tinned copper wire is 0.4 mm, and the The thickness of the tin layer is 1 μm.

[0045] Take four tinned copper wires and twist each other to form a wire core; cover the wire core with PTFE to form an insulating layer, the thickness of the insulating layer is 0.8mm, and then coat the outer side of the insulating layer with 15mm wide and 0.03mm thick Aluminum foil, forming an aluminum foil layer, then wrapping PTFE on the outside of the aluminum foil layer, forming an insulating layer on the outside, and the thickness of the insulating layer on the outside being 0.6mm, forming a single-strand wire harness;

[0046] (2) Take 3-5 single-strand wire bundles...

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Abstract

When the wire harness is prepared, a conductive copper wire is drawn and formed by a wire drawing machine to obtain copper wires meeting specification requirements, the surfaces of the copper wires are tinned, at least two tinned copper wires are mutually wound and twisted to form a wire core, the surface of the wire core is coated with a polytetrafluoroethylene layer to form an insulating layer, and the insulating layer is coated with an anti-aging layer. The inner wire core is protected; coating the outer side of the insulating layer with an aluminum foil layer; and then, the aluminum foil layer is coated with polytetrafluoroethylene to form an outer insulating layer, and the wire core is continuously protected, so that a single-strand wire harness is formed. A plurality of single-strand wire harnesses are separated through linings, the outer sides of the plurality of single-strand wire harnesses are coated with a PVC sheath, then the outer side of the PVC sheath is sleeved with a corrugated pipe and wound with an adhesive tape, and fixing terminals are installed at the two ends of the PVC sheath, so that a wire harness finished product is obtained. The wire harness prepared by the invention is long in service life, relatively high in overall strength, excellent in flame retardance and aging resistance and relatively high in practicability.

Description

technical field [0001] The invention relates to the technical field of automotive wiring harnesses, in particular to a heat-resistant and anti-aging automotive wiring harness and a preparation method thereof. Background technique [0002] The automobile wiring harness is the network main body of the automobile circuit, and there is no automobile circuit without the wiring harness. Wire harness refers to the contact terminal (connector) punched from copper material and the wire and cable after being crimped, and then the outside is molded with an insulator or an external metal shell, etc., and the wire harness is bundled to form a component that connects the circuit. The wiring harness industry chain includes wires and cables, connectors, processing equipment, wiring harness manufacturing and downstream application industries. The wiring harness is widely used and can be used in automobiles, household appliances, computers and communication equipment, various electronic instr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/012H01B13/02H01B13/06H01B13/22H01B13/24H01B7/18H01B7/28H01B7/29H01B7/295H01B9/02H01R43/048H01R31/06C08L27/06C08L23/08C08L91/00C08K3/36C08K3/04C08K5/12
CPCH01B13/01209H01B13/01236H01B13/01263H01B13/0207H01B13/06H01B13/22H01B13/24H01B9/02H01B7/1875H01B7/295H01B7/28H01B7/292H01R43/048H01R31/06C08L27/06C08L2201/08C08L2201/02C08L23/0853C08L91/00C08K3/36C08K3/042C08K5/12
Inventor 邓皓升胡基明
Owner 南京亿天塑料有限公司
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