Bumper Radar Mounting Structure for Corner Placement and Wave Output
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Solution Overview
Problem
Existing in-vehicle radar device mounting structures face challenges in achieving high radar wave output while maintaining design flexibility, particularly when mounted on vehicle design corners.
Innovation Solution
A bumper cover with recessed portions and a cover portion featuring a ridgeline through which the radar wave central axis passes, allowing the radar device to be mounted at design corners, thus improving symmetry and enhancing radar wave output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the in-vehicle radar device is mounted on a back surface of a bumper cover via a bracket, then the mounting is simple and reliable, but it is difficult to mount the radar device to a ridge portion such as a design corner, reducing design flexibility
Solution Approach 1:
The bumper cover is divided into multiple recessed portions, with each recessed portion capable of receiving a bracket for mounting radar devices. This segmentation allows radar devices to be mounted at multiple locations including ridge portions without requiring a completely different mounting structure for each location.
Solution Approach 2:
The invention utilizes the third dimension by creating recessed portions that extend into the bumper cover thickness and positioning brackets at various depths and orientations. This allows the radar device to be mounted at ridge portions (corners) of the bumper cover, utilizing the vertical and depth dimensions to achieve mounting locations that were previously inaccessible with simple surface mounting.
2Reliability
If the radar device is mounted away from the design surface, then design flexibility is maintained, but the transmission properties of the radar wave are reduced
Solution Approach 1:
The bumper cover is designed with different local structures: recessed portions for mounting brackets are provided at specific locations, while the surrounding areas maintain the original design surface. This allows the radar device to be positioned optimally for wave transmission while the overall design surface integrity and flexibility are preserved.
Solution Approach 2:
The bracket acts as an intermediary component that connects the radar device to the bumper cover structure. It enables the radar device to be mounted at ridge portions and transmits the radar waves effectively through the bumper cover, bridging the gap between mounting requirements and transmission optimization requirements.
3Reliability
If the design surface is made asymmetrical to accommodate mounting requirements, then mounting is simplified, but the output value of the radar wave is reduced
Solution Approach 1:
The bumper cover is segmented into multiple recessed portions distributed at different locations, including symmetric positions. This segmentation allows the design surface to maintain overall symmetry while providing multiple mounting points, eliminating the need to choose between asymmetry for mounting or symmetry for radar performance.
Data Source
AI summary
An in-vehicle radar device mounting structure includes a bumper cover provided with a recessed portion having an inner side as a recess, a bracket portion disposed in the recessed portion and capable of attaching an in-vehicle radar device for transmitting and receiving radar waves to and from the bumper cover, and a cover portion having a ridgeline through which a central axis of the radar wave passes and that covers the recessed portion and the in-vehicle radar device.