Radar Sensor Bracket Assembly for Vibration-Isolated Mounting
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Solution Overview
Problem
Existing radar mounting systems for industrial vehicles face reliability issues due to high vibrations and shocks, which can compromise the accuracy and durability of sensing devices like radar and lidar systems, requiring a robust and efficient fixing solution that also facilitates easy installation.
Innovation Solution
A fixing unit comprising a first and second bracket with snap-engaging lugs and retaining pins that securely hold the sensing device, acting as an interface to absorb vibrations and shocks, while allowing for accurate positioning and easy installation, and can be bolted to a sub-frame of the vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a rigid radar mounting system is used to guarantee accurate space orientation, then measurement precision is improved, but reliability deteriorates due to high vibrations and shocks on industrial vehicles
Solution Approach 1:
The mounting system is divided into separate functional components: a rigid bracket assembly for maintaining space orientation and a separate damping element for absorbing vibrations. This segmentation allows each component to optimize its specific function without compromising the other.
Solution Approach 2:
A damping element is introduced as an intermediary component between the radar and the vehicle structure. This mediator absorbs mechanical shocks and vibrations while allowing the rigid bracket to maintain accurate orientation, thus protecting the radar from harmful vibrations.
2Reliability
If a robust fixing system is implemented to withstand high vibrations and shocks, then reliability is improved, but device complexity increases
Solution Approach 1:
The damping element is integrated directly into the bracket structure, merging two functions (mounting and damping) into a single unified component. This reduces the number of separate parts and simplifies assembly while maintaining reliability under vibration and shock conditions.
Solution Approach 2:
The bracket is constructed using composite material properties, combining rigid structural elements with integrated damping features. This allows the single component to simultaneously provide structural support and vibration absorption without requiring multiple separate parts.
3Reliability
If a complex mounting system with vibration filtering is used, then reliability is improved, but ease of manufacture deteriorates
Solution Approach 1:
The mounting system is designed as modular segments that can be manufactured separately and assembled through simple snap-fit connections. This segmentation enables each component to be manufactured using standard processes while maintaining overall system reliability.
Solution Approach 2:
The bracket incorporates elastic elements that provide dynamic vibration absorption while maintaining static mounting functionality. This dynamic feature is achieved through the inherent elasticity of the material rather than complex mechanical structures, simplifying manufacturing.
Data Source
AI summary
A fixing unit for fixing a sensing device to an industrial vehicle, the fixing unit comprising a first bracket, a second bracket comprising a plurality of fixing lugs configured for snap engagement with the first bracket, a plurality of retaining pins configured for passing through the sensing device, in which the sensing device is pressed between the first bracket and the second bracket when the fixing lugs of the second bracket are locked in the first bracket.