Vehicle Engine Room Cover Segmentation for Routing
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Solution Overview
Problem
Existing engine room structures for vehicles face challenges in sealing routing members such as harnesses and hoses, which can lead to heat and noise leakage when passing through cover members, requiring large through holes that complicate the formation of the cover member.
Innovation Solution
The engine room structure divides the cover member into at least two parts with continuous notch-shaped portions along a partial dividing line, allowing routing members to pass through without forming a substantial through hole, using sealing members to secure the routing members and prevent interference with the cover member's side walls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a large through hole is formed in the cover member to allow multiple routing members to pass through, then the routing members can be easily installed, but the manufacturing complexity and difficulty of forming the cover member increases
Solution Approach 1:
The cover member is divided into a first cover member and a second cover member that are coupled together. The routing members pass through the interface between these two segmented members, allowing multiple routing members to be accommodated without requiring a single large through hole in one piece, thus reducing manufacturing difficulty while maintaining ease of installation
2Ease of operation
If routing members pass through openings in the cover member, then the routing members can be installed, but hot air and sound leak to the outer region unless sealing is performed
Solution Approach 1:
Grommets are introduced as intermediary components at the interface between the first and second cover members where routing members pass through. These grommets provide sealing functionality to prevent hot air and sound leakage while still allowing the routing members to be installed, thus resolving the contradiction between ease of installation and prevention of harmful factor leakage
3Reliability
If multiple routing members are made to pass through one opening, then sealing is improved, but a large through hole must be formed which complicates cover member formation
Solution Approach 1:
Instead of forming one large through hole in a single cover member, the cover is segmented into two separate members that are coupled together. The routing members pass through the interface region between these segments, achieving the effect of multiple members passing through one opening while maintaining good sealing through the grommets, and avoiding the manufacturing difficulty of forming a single large hole
Data Source
AI summary
An engine room structure for a vehicle uses dividing portions of plural wall members forming a cover member, and can thereby easily form a through portion through which plural routing members are caused to pass by notch-shaped portions without forming a substantial through hole. An engine room structure for a vehicle, which includes a cover member covering an upper portion of an engine and in which a through portion is formed in the cover member, and plural routing members pass through the through portion. The cover member is divided into at least a first member and a second member, continuous notch-shaped portions are formed along a partial dividing line between the first member and the second member in either one of those, and the through portion for the plural routing members is formed with the notch-shaped portions of the one member and an end portion of the other member.