Sunroof Glass Wire Harness Structure to Prevent Tangling
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Solution Overview
Problem
Existing vehicle sunroofs with energized glass have large and complex connector assemblies and wire harnesses that are prone to tangling and require significant space, compromising their integration and functionality.
Innovation Solution
A vehicle sunroof design featuring a movable wire harness with a hard guiding member, such as a metal or hard plastic sheet, integrated within the harness to guide its movement, reducing its size and preventing tangling, while maintaining electrical connectivity during sliding operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a movable wire harness structure is used to maintain electrical connectivity during sunroof sliding, then electrical connectivity is maintained, but the wire harness becomes large in size and complex in structure
Solution Approach 1:
The wire harness is nested within a hard guiding member (harness sleeve) that provides structural support and guidance. The movable wire harness is inserted into the hard guiding member, creating a nested structure where the flexible wire harness is contained within the rigid protective sleeve, reducing overall complexity while maintaining connectivity
Solution Approach 2:
The hard guiding member (harness sleeve) acts as an intermediary between the movable wire harness and the surrounding environment. It provides guidance, protection, and structural support to the wire harness, allowing the flexible harness to move smoothly while maintaining electrical connectivity without direct exposure to external forces
2Reliability
If connector assemblies and wire harnesses are made large to accommodate movement, then electrical connectivity is maintained, but the space required for arrangement increases
Solution Approach 1:
The wire harness is designed to be movable and flexible rather than rigid, allowing it to dynamically adapt to the sliding motion of the sunroof. The harness can roll up or spread according to the glass movement, minimizing the volume required while maintaining continuous electrical connectivity throughout the range of motion
3Adaptability or versatility
If the movable wire harness is made flexible to accommodate sliding movement, then movement is enabled, but the wire harness becomes prone to tangling and breakage
Solution Approach 1:
The flexible wire harness is nested within a rigid hard guiding member that prevents tangling and provides structural support. The hard guiding member maintains the harness's shape and prevents it from twisting or breaking during movement, while still allowing the necessary flexibility for sliding operation
Solution Approach 2:
The hard guiding member serves as a protective intermediary between the flexible wire harness and external forces. It guides the harness through the sliding motion, preventing it from tangling or breaking while allowing the harness to remain flexible enough to accommodate the full range of motion
Data Source
AI summary
The present disclosure relates to a vehicle sunroof comprising an energized sunroof glass, and to a vehicle. The energized sunroof glass comprises a rear glass and a front glass (1) being slidable relative to the rear glass. The vehicle sunroof further comprises a movable wire harness (6), one end of the movable wire harness (6) is electrically connected to the front glass (1), and the other end of the movable wire harness (6) is electrically connected to a main wire harness of the vehicle sunroof. A hard guiding member (6d) is disposed inside the movable wire harness (6) and penetrates through at least part of the length of the movable wire harness (6) to guide the movable wire harness (6) to be rolled up or spread when the from glass (1) slides. The movable wire harness connection structure of the vehicle sunroof is small in size, and has fewer components but high integration. Further, the movable wire harness is not easy to get tangled and has a good self-guiding function during operation of the sunroof.