Vehicle Roof Sensor Support With Thermal Coupling and Electrical Isolation
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Solution Overview
Problem
The existing vehicle roof designs do not adequately ensure optimal operating conditions for environment sensors, particularly due to insufficient electrical decoupling between sensors.
Innovation Solution
The vehicle roof incorporates a support system with electrical insulation elements between each environment sensor and the support, allowing for thermal coupling and galvanic decoupling, ensuring uniform working temperatures and preventing electrical interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If environment sensors are mounted directly on a common support structure, then installation is simplified and thermal management is improved, but electrical interference between sensors occurs
Solution Approach 1:
An electrical insulation element is introduced as an intermediary component between the environment sensors and the support structure. This mediator allows thermal contact while preventing electrical interference, thus resolving the contradiction between simplified installation and electrical isolation requirements.
Solution Approach 2:
The support structure is segmented into multiple regions, each with dedicated mounting positions for different environment sensors. This segmentation, combined with individual insulation elements, prevents electrical interference while maintaining a compact integrated design.
2Object-affected harmful factors
If sensors are electrically isolated from each other, then electrical interference is prevented, but thermal management efficiency decreases
Solution Approach 1:
The electrical insulation element serves as a thermal conductor while providing electrical isolation. This mediator material allows heat to flow from the sensors to the support structure while blocking electrical interference, thus maintaining thermal management efficiency while preventing electrical interference.
Solution Approach 2:
The insulation element is designed with specific thermal and electrical parameter characteristics - high thermal conductivity to maintain thermal management efficiency and high electrical resistivity to prevent electrical interference. This parameter optimization resolves the contradiction between thermal efficiency and electrical isolation.
3Volume of moving object
If a compact thermal management system is used, then system size is reduced, but sensor cooling effectiveness may be compromised
Solution Approach 1:
The support structure integrates multiple functions: mechanical support for sensors, thermal conduction path for heat dissipation, and mounting interface for the roof. This merging of functions into a single integrated component achieves compact system size while maintaining effective sensor cooling through direct thermal contact.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables efficient temperature control and electrical isolation of environment sensors, ensuring optimal performance and simplified installation while maintaining a compact thermal management system.
Implementation Method 1
the electrical insulation elements thermally coupling the respective environment sensors and the support
Data Source
AI summary
A vehicle roof, in particular for a passenger car, the vehicle roof having a roof skin which forms a visible outer surface of the vehicle roof, and a sensor unit having at least two environment sensors for detecting a vehicle environment, the sensor unit being disposed below the roof skin and attached to a carrier and may have a support for the at least two environment sensors, the support being connected to a thermal management system. An electrical insulation element is disposed between each of the environment sensors and the support, the electrical insulation elements thermally coupling the respective environment sensors and the support.