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Method for water stopping in on-vehicle electric wires

A treatment method and wire technology, applied to circuits, electrical components, insulated cables, etc., can solve the problems of easy pressure loss, complicated management of vehicle-mounted wire operations, and large pressure loss, and achieve high water-stop performance

Inactive Publication Date: 2008-11-05
AUTONETWORKS TECH LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes the work management of the on-board electric wires complicated
In particular, when handling long wires, handling of the wire itself is not easy, so a lot of space is required
[0005] In addition, in this method, in order to introduce the waterproofing agent supplied to one terminal of the vehicle-mounted electric wires into the electric wires, it is necessary to suck the air inside from the other terminal of the vehicle-mounted electric wires, but this suction is likely to cause pressure loss. , and the longer the length of the above-mentioned on-board wires, the greater the pressure loss

Method used

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  • Method for water stopping in on-vehicle electric wires
  • Method for water stopping in on-vehicle electric wires
  • Method for water stopping in on-vehicle electric wires

Examples

Experimental program
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Embodiment 1

[0052] Use the above figure 1 as well as figure 2 In the method shown, under the following conditions, the operating pressure is appropriately changed and the water stop treatment is performed.

[0053] ·Wire length……1m

[0054] ·The cross-sectional area of ​​the wire……0.85mm 2

[0055] ·Water stop agent used...silicone rubber (viscosity 0.6Pa·S)

[0056] ·Drip volume of water stop agent……10~20mg

[0057] ·Operation pressure (gauge pressure)...a) Pressurize the processing side terminal 16 to 300 kPa, b) Pressurize the processing side terminal 16 to 200 kPa, and c) Reduce the opposite side terminal of the processing side terminal 16 Three methods of pressure to -70kPa (previous method) to stop water treatment

[0058] ·Processing time……10~20sec

[0059] Figure 5 Indicates the result of this water stop treatment. Figure 5The "penetration distance" in is the maximum value of the distance from the end position of the coating material 14 to the deepest penetration position of the w...

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Abstract

This invention relates to a method for water stopping in on-vehicle electric wires, comprising dropping a water stopping agent (18) having fluidity on the terminal of on-vehicle electric wires (10) to cover the gap between the electric conductor of the terminal and the covering material and the step of pressurizing the air around the water stopping agent (18) to penetrate the water stopping agent (18) into the inner side of the covering material of the on-vehicle electric wires (10). Adopting the invention is free of length of the wires and is able to have the conductor and the exterior covering material, and the on-vehicle electric wires (10) is effectively executed water-stopping treatment.

Description

Technical field [0001] The present invention relates to a technology for water-stopping treatment of in-vehicle electric wires mounted on a vehicle. Background technique [0002] As car-mounted wires, some require high water resistance. For example, a grounding wire used to ground a circuit installed in a vehicle or the like. A grounding terminal is fixed to the terminal of the grounding wire, and the grounding terminal is exposed to the outside and connected to an appropriate ground connection location (for example, a vehicle body). Therefore, moisture easily penetrates into the grounding wire from the terminal, and the moisture penetrates into the circuit along the inner side of the covering material of the grounding wire, thereby hindering the normal operation of the circuit. [0003] Patent Document 1 (Japanese Patent Laid-Open Publication No. 2004-355851) discloses a method for water-stopping treatment of in-vehicle wires such as the above-mentioned ground wire. In this meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/32H01B7/00H01B7/282H01R4/70
CPCH01R4/70H01B7/285H01R13/5216
Inventor 桥本大辅米谷敏夫宫本贤次山田浩孝
Owner AUTONETWORKS TECH LTD
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