Waterproof structure at the end of the harness
A waterproof structure and wiring harness technology, applied in the direction of connections, conductors, electrical components, etc. where permanent deformation plays a role, can solve the problems of difficult to uniform pressure load, difficult to improve sealing performance, etc., to increase the contact area, improve sealing performance, prevent The effect of misplacement
Inactive Publication Date: 2016-08-17
SUMITOMO WIRING SYST LTD
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Problems solved by technology
[0006] On the other hand, the cross-sectional shape of the cylindrical portion 116 of the shield case 115 is usually formed in an ellipse or an oblong shape in many cases, so there is a problem that even if the second riveting ring 114 is used to fix the protective wire covering the cylindrical portion 116 Even if the large-diameter cylindrical portion 111a of the sleeve 111 is fixed by riveting, it is difficult to apply pressure evenly and improve the sealing performance.
Method used
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[0027] Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0028] figure 1 and figure 2 Embodiments of the present invention are shown.
[0029] In this embodiment, a wire harness 1 composed of three insulated covered electric wires 2 is routed between the inverter and the battery (not shown) of the hybrid vehicle, and is routed in the underfloor area of the vehicle body (not shown). , the wire harness 1 is inserted into a metal pipe (not shown) made of aluminum-based metal.
[0030] In the area at both ends where the wire harness 1 is pulled from the underfloor wiring area into the engine room at the front of the vehicle and the compartment at the rear of the vehicle (not shown) to connect to the inverter or the battery, which is the device 30 on the other side, first After the wire harness 1 drawn from the end opening of the metal pipe is inserted through the corrugated tube 10 connected to the end of the metal pipe, t...
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The present invention can prevent the deterioration of the sealing performance of the grommet even if it is exposed to a high temperature state for a long time. A terminal waterproof structure of a wire harness, wherein the front end side of a shielding cylindrical marshalling member covering the wire harness is covered on the cylindrical part of the shielding case and riveted and fixed with a first riveting ring, so that the cylindrical The grommet covers the riveting and fixing part of the shielding cylindrical marshalling member and fits externally in the cylindrical portion of the shielding case protruding from the front end of the shielding cylindrical marshalling member, so that the front end of the grommet abuts against the flange of the shielding case And the outer periphery of the front end side of the grommet is riveted and fixed by the second riveting ring, and protrudes from the inner peripheral surface of the grommet at a position sandwiched by the fixing position of the second riveting ring and the fixing position of the first riveting ring. An annular sealing rib is provided, and a concave portion into which the annular sealing rib is pressed is provided on the outer peripheral surface of the cylindrical portion of the shielding case.
Description
technical field [0001] The present invention relates to an end waterproof structure of a wire harness. Specifically, it is a structure in which a wire sheath installed at an end of a wire harness wired in a vehicle can be exposed to high temperature for a long time without degrading the wire sheath. Waterproof the end of the harness without compromising the sealing performance of the harness. Background technique [0002] In the past, the wiring harness composed of high-voltage electric wires that is routed between the battery and the inverter, or between the inverter and the motor, etc. of hybrid vehicles and electric vehicles is less likely to be routed under the floor on the lower surface side of the floor. many. The wire harness that is routed under the floor needs to be waterproofed, protected from flying stones, and shielded. Therefore, the wire group constituting the wire harness is inserted into an exterior member made of, for example, a metal pipe, and the metal pi...
Claims
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IPC IPC(8): H02G3/22B60R16/02
CPCH02G3/32H02G3/088B60R16/0222H01B7/2825H01R4/20
Inventor 藤冈谅
Owner SUMITOMO WIRING SYST LTD