Wire Harness Wall-Passing Structure for Multi-Stage Pressure Sealing
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Solution Overview
Problem
Current wire harness wall-passing structures for high-pressure vessels suffer from inadequate sealing performance, which is insufficient for maintaining air and water tightness, especially in high-pressure environments.
Innovation Solution
A wire harness wall-passing structure comprising a sleeve pipe alternately filled with pouring sealant and sealing plugs, featuring multiple through holes in the sealing plugs and a reamer for accommodating the wire harness, along with a sealing flange and gasket for enhanced sealing, ensures multi-stage sealing and improved sealing performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single sleeve pipe with simple sealing is used for wire harness wall-passing, then the device complexity is low and ease of manufacture is high, but the sealing performance is insufficient for high-pressure vessels
Solution Approach 1:
The sealing structure is divided into multiple segments: sealing plugs positioned at different locations within the sleeve pipe, and multiple sealing layers (first sealing layer with first sealing compound, second sealing layer with second sealing compound). Each segment performs a specific sealing function, collectively achieving the required sealing performance for high-pressure vessels while maintaining manageable structural complexity.
Solution Approach 2:
The patent employs composite sealing materials with different properties: a first sealing compound (e.g., high-temperature resistant material) for the first sealing layer, and a second sealing compound (e.g., flexible material) for the second sealing layer. This composite approach leverages the complementary strengths of different materials to achieve reliable sealing under high-pressure conditions.
2Reliability
If multiple sealing layers and compounds are used to improve sealing performance, then the sealing performance is sufficient for high-pressure vessels, but the manufacturing process becomes more complex
Solution Approach 1:
The sealing plugs are pre-positioned within the sleeve pipe at specific locations before the sealing compounds are applied. The first sealing compound is applied and cured, then the second sealing compound is applied and cured. This sequential preliminary positioning and application process simplifies the overall manufacturing by establishing a clear, step-by-step procedure that ensures proper sealing layer formation without requiring complex real-time adjustments.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The proposed structure achieves significantly improved sealing performance, making it more suitable for high-pressure vessels by providing multi-stage sealing and enhanced protection against leaks.
Implementation Method 1
the sleeve pipe is alternately filled with the pouring sealant and the sealing plug along the axis direction of the sleeve pipe
Implementation Method 2
the pouring sealant is insulating glue
Implementation Method 3
the reamer comprises a tapered part and a reaming part which are detachably connected; and the small-size end of the tapered part is used for being inserted into the first through hole, the large-size end of the tapered part is connected with the reaming part
Implementation Method 4
at least one end of the sleeve pipe is provided with a sealing flange
Implementation Method 5
a sealing gasket is arranged in the circumferential direction of the limiting convex plate in a sleeving mode
Data Source
AI summary
A wire harness wall-passing structure and an installation method thereof. The wire harness wall-passing structure comprises: a sleeve pipe, a pouring sealant, and at least one sealing plug, wherein the sleeve pipe is alternately filled with the pouring sealant and the sealing plug along the axis direction of the sleeve pipe; and at least one first through hole formed in the sealing plug, and a wire harness which can penetrate through the pouring sealant and the first through hole in the sealing plug. According to the wire harness wall-passing structure, the sleeve pipe is filled with the pouring sealant and the sealing plug, so multi-stage sealing and multi-time sealing of the wire harness are achieved, the sealing performance of the wall-passing structure is greatly improved, and the wire harness wall-passing structure is more suitable for to-be-fixed devices such as a high pressure vessel.