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Apparatus and method for longitudinal sealing of electrical lines

By applying negative pressure to the electrical conductors and introducing sealing substances, the problem of liquid medium intrusion in the automotive cable bundle is solved, effective prevention of engine oil is achieved, wear and clogging of the injection needle is avoided, and the reliability and durability of the seal are improved. sex.

Inactive Publication Date: 2009-08-19
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is a danger that the injection needle will wear out or become clogged over time and have to be replaced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] exist figure 1 The device 1 shown in is used for longitudinal sealing of an electrical conductor 2 with one or more conductor fibers 21 . Wire fibers 21 such as figure 2 Shown surrounded by an outer sheath 22 with cavities 23 remaining between the individual guide fibers 21 and between the individual guide fibers 21 and the outer sheath 22 .

[0011] The sealing device 1 comprises a storage tank (storage container) 4 filled with a liquid sealing substance 3 and a negative pressure source (vacuum pump) 5 with a matching joint 6 . The pressure present in the mating connection 6 is detected by a pressure sensor 7 which is connected to a monitoring unit (not shown).

[0012] like figure 1 The end 2a of the wire 2 to be sealed is immersed in the liquid sealing substance 3 as shown. The other end portion 2b of the wire 2 sealed by the seal 8 is connected to the mating connector 6 . The sealing compound 3 is pushed into the cavity 23 of the wire 2 by suction (arrow direc...

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PUM

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Abstract

In a method for longitudinal sealing of electrical lines (2), which have one or more line fibres (21) arranged in an outer sheath (22), and cavities (23) between the individual line fibres (21) as well as between the individual line fibres (21) and the outer sheath (22), that end (2a) of the line (2) to be sealed is, according to the invention, immersed in a liquid sealing compound (3), and a reduced pressure is applied to the other end (2b) of the line (2). A sealing apparatus (1) that is suitable for carrying out this method has a supply reservoir (4) for the liquid sealing compound (3), in which the end (2a) of the line (2) to be sealed is immersed, and a vacuum-pressure source (5), to which the other end (2b) of the line (2) is connected.

Description

technical field [0001] The present invention relates to a device and method for longitudinal sealing of electrical conductors of the type described in claim 1 or 5 . Background technique [0002] Such a device and such a method are known, for example, from DE 103 45 676 A1. The intrusion of water or other media into the vehicle cable harness can lead to the failure of the connected components and controls and thus also the vehicle, since the liquid medium is first squeezed into the core conductors through the cavity. For the corresponding requirements given by the installation location, therefore, plugs that are installed in a sealed manner are used to obtain a sealed cable harness. For electrical conductors that are not terminated in the plug, for example conductors with ring cable lugs, shrink tubes with molten adhesive are often used from the outside for sealing. [0003] In addition to water, other media, such as engine oil, may also be present in the engine space or e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/285H01B13/32
CPCH01B7/285Y02A30/14Y10T29/532Y10T29/49117
Owner ROBERT BOSCH GMBH