Windshield Auxiliary Structure With Hidden Harness Routing
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Solution Overview
Problem
The need to suppress vehicle height while maintaining a clear field of view for occupants, as auxiliary devices on the windshield obstruct the view due to their positioning near the occupant's head when the vehicle height is reduced.
Innovation Solution
An auxiliary structure for the vehicle windshield that includes a bracket fixed to the windshield glass, a mirror support structure, electronic devices aligned with the bracket, wire harnesses routed through openings in the mirror support columnar portion, and a harness cover extending to the front header, allowing linear routing of wire harnesses and reducing the overall cover length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the total vehicle height is suppressed to be low, then the vehicle height is reduced, but the auxiliary device obstructs the occupant's field of view
Solution Approach 1:
The patent positions the auxiliary device on the inner surface of the windshield glass rather than on the front header, utilizing the vertical space dimension. The auxiliary cover extends in the vehicle width direction rather than protruding forward, changing the spatial arrangement from a forward-protruding configuration to a width-direction layout that clears the occupant's forward view path.
2Reliability
If the auxiliary cover protrudes forward from the front header, then the electronic devices are protected, but the occupant's field of view is obstructed
Solution Approach 1:
The auxiliary cover is designed to extend primarily in the vehicle width direction rather than protruding forward in the vehicle front-rear direction. This dimensional reorientation allows the cover to protect the electronic devices from lateral exposure while maintaining clearance in the forward direction, thus preserving the occupant's field of view.
3Ease of manufacture
If the wire harnesses are routed along the inner surface of the windshield glass, then the routing is simple, but the harness cover becomes excessively long and obstructs the field of view
Solution Approach 1:
The wire harness routing is divided into two segments: the first portion extends from the electronic devices to the mirror support structure along the bracket, and the second portion extends from the mirror support structure to the front header. This segmentation allows the harness cover to be positioned more compactly, reducing its length in the vehicle front-rear direction and minimizing field of view obstruction while maintaining routing simplicity.
4Object-affected harmful factors
If the auxiliary devices are positioned on the front header, then the field of view is clear, but the vehicle height cannot be suppressed
Solution Approach 1:
The patent relocates the auxiliary devices from the front header to the inner surface of the windshield glass, utilizing the vertical space dimension. The auxiliary cover extends in the vehicle width direction, creating a layout that clears the forward view path while accommodating the devices within the available vertical space, thus enabling both clear field of view and suppressed vehicle height.
Data Source
AI summary
An auxiliary structure for a vehicle windshield includes: a mirror support structure that supports a rear-view mirror; a plurality of electronic devices (a rain sensor and a communication antenna) aligned in a vehicle width direction; a plurality of wire harnesses (a sensor 10 wire harness and an antenna wire harness) extending from the electronic devices; an auxiliary cover that covers the mirror support structure and the electronic devices; and a harness cover that accommodates a plurality of wire harnesses. The mirror support columnar portion of the mirror support structure has an opening that penetrates in a vehicle front-rear direction. The plurality of wire harnesses are routed from a vehicle front side of the mirror support columnar portion to a vehicle rear side of the mirror support columnar portion through the opening.