Vehicle Radar Bracket Withdrawn Shape Beam Interference

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Solution Overview

Problem

Vehicle-mounted radar devices face challenges in maintaining stable radar performance due to interference from radar bracket components within the radar beam area, and existing installations are not easy to assemble.

Innovation Solution

The radar bracket is designed with support parts that form a withdrawn shape to avoid interference with radio waves, allowing for stable installation and assembly of the radar main body, including a bridge part, rib, and hook parts that span and project from the side plate to support the radar main body without affecting the radar beam area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the radar bracket includes support parts to hold the radar main body, then the radar main body can be installed stably, but the support parts may interfere with the radar beam area and degrade radar performance

Engineering Contradiction:

Improveinstallation stabilityVSAvoidradar performance degradation

Core Design Contradiction:

Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The support parts are designed with withdrawn shapes that extract or remove the interfering portions from the radar beam area. The support parts are positioned and shaped to provide structural support while being recessed or contoured to avoid protruding into the path of radio waves, thereby eliminating the harmful interference while maintaining installation stability.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

Different portions of the support parts have different geometries: portions within the radar beam area are designed with withdrawn shapes to avoid interference, while other portions maintain sufficient structural strength for support. This local differentiation of geometric properties allows the same component to satisfy both non-interference and support requirements.

Inventive Principle:

Principle #3Local quality

2Measurement precision

If the transmission and reception surface area is increased to improve radar performance, then the radar beam area becomes broader, but this increases the likelihood of radar bracket components interfering with the beam

Engineering Contradiction:

Improveradar performanceVSAvoidbeam area interference

Core Design Contradiction:

Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The support parts utilize the third dimension (depth) by creating withdrawn shapes that recede into the bracket structure. This dimensional approach allows the support parts to provide adequate structural support in the horizontal plane while withdrawing vertically or radially to clear the radar beam path, thus resolving the conflict between support function and beam clearance.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Ease of manufacture

If the radar bracket structure is simplified to reduce assembly complexity, then assembly becomes easier, but the radar main body may not be adequately supported

Engineering Contradiction:

Improveassembly easeVSAvoidsupport adequacy

Core Design Contradiction:

Ease of manufactureVSStability of the object's composition

Solution Approach 1:

The support parts are designed to perform multiple functions simultaneously: they provide structural support for the radar main body, maintain proper positioning, and avoid interference with the radar beam area through their withdrawn shapes. This multi-functionality allows a single integrated bracket structure to achieve support, positioning, and non-interference requirements without requiring additional complex components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP3051307B1Vehicle-mounted radar device

Publication Date: 2019.05.22 VEONEER SWEDEN AB

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AI summary

Provided is a vehicle-mounted radar device which can contribute to stabilizing radar performance and in which a radar main body can be installed easily on a radar bracket. A radar device 100 is provided with a radar main body 106 and a radar bracket 108 for installing the radar main body 106 on a vehicle. The radar bracket 108 is provided with a side plate part 116, etc. following a side surface 120, etc. of the radar main body 106; a bottom plate part 144 which supports a bottom surface 142 of the radar main body 106; an opening area 140 which exposes a transmission and reception surface 112 of the radar main body 106; one or more support parts which are provided on the side plate part 116, etc. and which support the radar main body 106 by contacting a side surface 128, etc. or the transmission and reception surface 112 of the radar main body 106; and a withdrawn shape 160, etc. which is formed at the end of each of the support parts that is near the center of the transmission and reception surface 112 of the radar main body 106 and which is inclined toward the side distant from the center of the transmission and reception surface 112 and toward the outside of the vehicle.