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Manufacture method of waterproof plastic wiring harness

A production method and technology for plastic wires, which are applied in the manufacture of wire harnesses, cable/conductor manufacture, electrical components, etc., can solve the problems of insufficient filler penetration, low production cost, and high production efficiency, and achieve low material costs and low production costs. , the effect of high production efficiency

Active Publication Date: 2017-02-22
CHANGSHA ONRISE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Still another object of the present invention is to provide a method for making waterproof plastic wire harnesses, which uses cotton thread weaving to solve the problem of insufficient penetration of fillers between wire harnesses, and divides a bundle of wires into inner wire bundles and outer wire bundles for separate processing, effectively The service life of the wire harness is extended, and the production efficiency of the whole production process is high, the material cost is low, and the production cost is low

Method used

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  • Manufacture method of waterproof plastic wiring harness
  • Manufacture method of waterproof plastic wiring harness
  • Manufacture method of waterproof plastic wiring harness

Examples

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Effect test

Embodiment 1

[0032] The invention provides a method for making a waterproof plastic wire harness, comprising the following steps:

[0033] Step 1. Arranging a bundle of wires with a waterproof part 1. The number of wires is greater than 2. The wires are divided into an inner wire bundle 2 and an outer wire bundle 7 according to the ratio of the number of wires within the range of 1-2:3. Such as figure 1 The two ends of the waterproof part 1 of the inner wire bundle 2 are braided with cotton thread 8 so that the inner wire bundle 2 is connected to each other in the shape of a rolling curtain, wherein the diameter of the cotton thread 8 is the diameter of each of the wires Before weaving the cotton thread 8, soak the cotton thread 8 in liquid paraffin and drain until the liquid paraffin does not drop within 2-5 minutes after the cotton thread 8 is picked up. The intersection between two adjacent wires of the wire harness 2 is X-shaped, the length of the waterproof part 1 of the outer wire h...

Embodiment 2

[0039] The invention provides a method for making a waterproof plastic wire harness, comprising the following steps:

[0040] Step 1. Arranging a bundle of wires with a waterproof part 1. The number of wires is greater than 2. The wires are divided into an inner wire bundle 2 and an outer wire bundle 7 according to the ratio of the number of wires within the range of 1-2:3. Such as figure 2The middle of the waterproof part 1 of the inner wire harness 2 is braided with cotton thread 8 so that the inner wire bundles 2 are connected to each other in the shape of a rolling curtain, wherein the diameter of the cotton thread 8 is 1 / 3 of the diameter of each wire. One tenth, before weaving the cotton thread 8, soak the cotton thread 8 in liquid paraffin and drain until the liquid paraffin does not drop within 2-5 minutes after picking up the cotton thread 8, and the cotton thread 8 is in the inner bundle 2 The intersection between two adjacent wires is X-shaped, the length of the w...

Embodiment 3

[0045] The invention provides a method for making a waterproof plastic wire harness, comprising the following steps:

[0046] Step 1. Arranging a bundle of wires with a waterproof part 1. The number of wires is greater than 2. The wires are divided into an inner wire bundle 2 and an outer wire bundle 7 according to the ratio of the number of wires within the range of 1-2:3. Such as figure 1 The two ends of the waterproof part 1 of the inner wire bundle 2 are braided with cotton thread 8 so that the inner wire bundle 2 is connected to each other in the shape of a rolling curtain, wherein the diameter of the cotton thread 8 is the diameter of each of the wires Before weaving the cotton thread 8, soak the cotton thread 8 in liquid paraffin and drain until the liquid paraffin does not drop within 2-5 minutes after the cotton thread 8 is picked up. The intersection between two adjacent wires of the wire harness 2 is X-shaped, the length of the waterproof part 1 of the outer wire h...

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Abstract

The invention discloses a manufacture method of a waterproof plastic wiring harness. The manufacture method comprises the steps that firstly, a waterproof part of an inner wiring harness is woven with cotton threads; secondly, the inner wiring harness is winded into a cylindrical shape, the external circumference of the inner wiring harness is coated with a high foaming silicon dioxide layer, an inner filler is filled in the high foaming silicon dioxide layer and then the high foaming silicon dioxide layer is coated with a closed-cell foam plastic layer; thirdly, a waterproof part of an outer wiring harness is woven with cotton threads and coated with a hot-melt pressure-sensitive adhesive, and the outer wiring harness coated with the hot-melt pressure-sensitive adhesive is winded on the closed-cell foam plastic layer and then placed in a die; fourthly, an outer filler is heated to be melt and then injected into the die, the die is opened after the die assembly is cooled and solidified, a wiring harness is taken out to obtain the waterproof wiring harness. According to the manufacture method, the problem that a filler can not be sufficiently osmosed between the wiring harnesses is solved by weaving of the cotton threads; the wiring harness is divided into the inner wiring harness and the outer wiring harness, the inner wiring harness and the outer wiring harness are treated respectively, the service life the wiring harness is effectively prolonged, and meanwhile the manufacture method has the advantages of being high in production efficiency, low in material cost and low in production cost.

Description

technical field [0001] The invention relates to a waterproof wire harness. More specifically, the present invention relates to a method for making a waterproof plastic wire harness. Background technique [0002] During the wiring process of the wire harness, it is often the case that the wire harness needs to enter the sealed cavity from the external part that can be sprayed with water. Due to the gap between the wire harnesses, when the outside of the wire harness is sprinkled with water, the water will penetrate into the sealed cavity due to the capillary effect. and damage the product. At present, the wire harness coated with the inner filler is mostly wrapped with an outer wrapper, which prevents the leakage of the inner filler through the outer wrapper, and has a locking and positioning effect on the wire harness. However, these methods are difficult to completely fill the gaps between the wires, and the outer wrapping is easily aged and damaged, causing the internal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/012
CPCH01B13/012H01B13/01263
Inventor 刘钰馨
Owner CHANGSHA ONRISE ELECTRONICS
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