Projective jacket for wire harness of automobile

Abstract

The invention provides a protective jacket for a wire harness of an automobile. The protective jacket comprises a rubber jacket and two semicircular fixing covers. The rubber jacket comprises a jacket body, an extending portion and a flange, the extending portion and the flange are integrally connected with the jacket body, the extending portion is cylindrical, the outer diameter of the extending portion is larger than that of the jacket body, the circumferential outer wall of the extending portion is matched with a fixing hole of a sheet metal part of an automobile body, the lower surface of the flange clings to the surface of the sheet metal part of the automobile body, the two fixing covers clamp a groove of the rubber jacket and cling to the upper surface and the side surfaces of the flange, and the fixing covers and the flange are connected with the sheet metal part of the automobile body by bolts. The protective jacket for the wire harness has the advantages of good integral structural strength and sealing performance.

Description

technical field [0001] The invention relates to the field of automobile wire harnesses, in particular to an automobile wire harness sheath. Background technique [0002] Since the engine wiring harness of the car is located outside the cab and the dashboard wiring harness is located inside the cab, there is communication between the vehicle engine wiring harness and the dashboard wiring harness, so when the engine wiring harness passes through the cab floor sheet metal and enters the cab, rubber is usually used here. Boots are used to protect the wire harness from sheet metal cuts. [0003] Such as figure 1 , figure 2 As shown, the existing wire harness passes through the sheet metal hole of the body floor. Since the body floor sheet metal 7 is a steel plate, the outside of the wire harness is an insulating skin. The cover 6 acts to protect the wiring harness, preventing the vehicle body floor sheet metal 7 from cutting the vehicle wiring harness, thereby causing a safet...

AI Technical Summary

Problems solved by technology

[0004] 1. The rubber sheath has no fixed holes, and only adopts the fixing method of extrusion and compression. The extrusion force is small, and the rubber sheath is not fixed firmly. After long-term use, it is easy to fall off

Moreover, the vibration existing during the driving process of the vehicle will cause the rubber sheath to have non-directional small left and right displacements, and the rubber sheath is subjected to the force from the body floor sheet metal (the emphasis is on the force that changes from time to time in the left and right direction), so that the rubber sheath and The long-term friction between the sheet metal leads to a decrease in the service life of the rubber sheath

[0005] 2. The vertical compression force between the rubber sheath and the sheet metal is very small, the car vibrates, and water is easy to enter through the rectangular groove, and the sealing effect is poor

[0006] 3. The overall rubber sheath is made of rubber material, without other strengthening parts, and its strength is poor

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