Engine Cover Harness Routing via Segmented Insulation
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Solution Overview
Problem
Existing engine cover member mounting structures that embed harnesses make repair and replacement difficult, increase the thickness of the cover member, and hinder the layout of peripheral components, such as alternators and air conditioners, due to their embedded design.
Innovation Solution
The engine cover member mounting structure routes the harness on the surface of the cover member between the engine body and peripheral members, allowing for easier repair and replacement, reducing the cover member's thickness, and optimizing the layout by holding the harness in a groove or using a guide mechanism for the peripheral members to absorb loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the harness is embedded in the cover member, then the harness is protected from damage, but the harness cannot be easily repaired or replaced
Solution Approach 1:
The cover member is divided into a first cover member and a second cover member that can be separated from each other. The harness is routed between these two separable cover members, allowing the cover members to be detached for harness maintenance while providing protection when assembled. This segmentation enables both protection during operation and easy access for repair.
2Reliability
If the harness is embedded in the cover member, then the harness is protected from damage, but the cover member thickness increases
Solution Approach 1:
Instead of embedding the harness within the thickness of a single cover member (consuming internal space), the harness is routed in the spatial dimension between two thin cover members. This dimensional change allows the harness to be protected without increasing the thickness of individual cover members, maintaining a compact overall structure.
3Ease of manufacture
If the harness is embedded in the cover member, then the harness routing is simplified, but peripheral members are separated from the engine body
Solution Approach 1:
The cover member is segmented into two separable parts that sandwich the harness. This segmentation creates a flexible routing path for the harness between the cover members, allowing peripheral members to maintain their optimal positions on the engine body without being constrained by a thick embedded harness structure.
4Reliability
If the harness is held on the surface of the cover member facing the outer wall, then the harness is protected from damage during assembly and repair, but the harness routing becomes more complex
Solution Approach 1:
The first cover member acts as an intermediary protective layer between the harness and the external environment. The harness is held on the surface of this cover member, which protects it from damage during assembly and repair operations while maintaining a relatively simple routing path compared to embedding it within thicker structures.
Data Source
AI summary
An engine cover member mounting structure, including: an engine body; a peripheral member arranged on an outer wall of the engine body; a cover member arranged between the outer wall and the peripheral member; and a harness routed between the outer wall and the peripheral member, wherein the harness is held on a surface of the cover member.