Windshield Sensor Holder With Sealing Lip for Wider Field of View
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Solution Overview
Problem
Existing holding devices for driver assist sensor units in vehicles are bulky and obstruct the driver's view while providing insufficient protection against dust and light interference, limiting the field of view and increasing installation space and costs.
Innovation Solution
A holding device with a lens shade that protrudes beyond the front window holder, featuring a sealing lip to seal off the inner volume and minimize dust ingress, allowing a large field of view and compact design, while using various connection types to secure the sensor unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the lens shade is completely enclosed by the front window holder, then dust protection is improved, but the field of view is reduced and installation space increases
Solution Approach 1:
The sealing lip is extracted from the front window holder and integrated into the lens shade instead. This allows the lens shade to protrude laterally beyond the holder while maintaining sealing functionality, reducing installation space requirements and improving field of view without compromising dust protection
Solution Approach 2:
The sealing lip acts as an intermediary element that provides the sealing function previously requiring a fully enclosed holder structure. By positioning the sealing lip on the lens shade where it contacts the front window, it mediates between the need for compact design and dust protection requirements
2Stability of the object's composition
If the front window holder completely encloses the lens shade, then structural stability is improved, but the field of view is reduced
Solution Approach 1:
The enclosing function is extracted from the front window holder and transferred to the lens shade through the integrated sealing lip. This allows the holder to be more compact while maintaining structural stability through the sealing lip's contact with the front window
Solution Approach 2:
Instead of the holder enclosing the lens shade, the lens shade with its integrated sealing lip encloses the sealing interface with the front window. This inversion allows the holder to be smaller while maintaining structural integrity through the reversed sealing arrangement
3Object-affected harmful factors
If a fully enclosed holder design is used, then protection against light interference is improved, but device complexity and costs increase
Solution Approach 1:
The sealing lip integrates the light sealing function with the dust sealing function into a single component on the lens shade. This merging eliminates the need for separate sealing mechanisms, reducing device complexity and costs while maintaining protection against both dust and light interference
Solution Approach 2:
The sealing lip serves multiple functions simultaneously: it seals against dust ingress, seals against light interference, and provides a mounting interface for the lens shade on the front window. This multi-functionality reduces the overall complexity of the holding device while maintaining comprehensive protection
Data Source
AI summary
A holding device is configured to hold at least one driver assist sensor unit in the vehicle interior of a motor vehicle relative to a front window. The holding device has a front window holder fastening the holding device to the inner side of the front window, and a baffle that, together with part of the front window, delimits an inner volume. The baffle projects beyond the front window holder by at least one side region and has, at least at this side region, a sealing lip for sealing the inner volume of the baffle with respect to the front window.