Vehicle Lamp Radar Housing With Recess Cooling Isolation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Radar devices in vehicular lamps are adversely affected by heat generated from the lamp body and engine radiant heat, leading to degraded detection performance, particularly in lateral directions.
Innovation Solution
The lamp device incorporates a translucent cover with a recess to house the radar unit, separating it from the lamp body space and providing air flow paths for cooling, thereby reducing the impact of radiant heat from the vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the radar unit is placed inside the lamp body, then the detection function is improved, but the radar performance is degraded by heat from the lamp and engine radiant heat
Solution Approach 1:
The lamp device is segmented into distinct functional zones: a lamp body space for the lighting function and a radar unit space for the detection function. The translucent cover with a recess creates physical separation between these spaces, allowing the radar unit to be positioned away from the heat-generating lamp components while remaining integrated in the overall assembly.
Solution Approach 2:
The recess in the translucent cover acts as an intermediary structure that mediates between the lamp body and the radar unit. It provides a thermally isolated compartment for the radar while maintaining the aesthetic and structural integrity of the lamp assembly, effectively shielding the radar from heat without compromising integration.
2Measurement precision
If the radar unit is shielded from external heat, then detection accuracy is improved, but heat dissipation from the lamp becomes problematic
Solution Approach 1:
The lamp device is segmented into distinct functional zones: a lamp body space for the lighting function and a radar unit space for the detection function. The translucent cover with a recess creates physical separation between these spaces, allowing the radar unit to be positioned away from the heat-generating lamp components while remaining integrated in the overall assembly.
Solution Approach 2:
The recess is provided at the side position of the lamp unit, creating a localized cool zone for the radar unit while the main lamp body can operate at higher temperatures. This local quality differentiation allows the lamp to function normally while protecting the radar from excessive heat in its specific location.
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 configuration maintains a highly accurate radar function by minimizing heat influence, ensuring effective cooling and preventing temperature rise in the radar unit.
Implementation Method 1
a communication portion 21C, through which the outside and the interior of the radar housing 21 communicate for enabling air flow thereto, between the radar housing 21 and the recess 13D of the translucent cover 13
Data Source
Figure 1~2
Figure 3~4
AI summary
A lamp device (10) has a base body (12) to be installed to a vehicle; a lamp unit (14); a translucent cover (13) that is installed to the base body (12), covering the front surface of the base body (12) so as to accommodate the lamp unit (14) therein, thereby defining a lamp body space (11K), and has a recess (13D) in the front surface at a side position in a horizontal direction of the lamp unit (14); and a radar unit (20) that has a radar sensor (23) and a radar housing (21) accommodating the radar sensor (23) therein, and is inserted in the recess (13D).