Vehicle Projection Assembly Cooling Layout for Heat Reliability
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Solution Overview
Problem
Existing projection assemblies in vehicles dissipate heat during use, which affects their performance and reliability.
Innovation Solution
A projection assembly is designed with a housing and bottom cover forming an accommodating space, where a heat dissipation assembly, display module, and imaging lens are disposed. The heat dissipation assembly includes a heat conducting block and heat dissipation fins, along with an optional heat dissipation fan, to effectively dissipate heat generated by the display module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the projection assembly operates for imaging and projection, then it can display information on the windshield, but heat is generated during operation which affects reliability
Solution Approach 1:
The patent converts the harmful heat generated by the display module into a manageable thermal flow by designing a heat dissipation assembly that guides heat away from critical components. The heat conducting block transfers heat from the display module to the heat dissipation fins, where it is dispersed to the surrounding air, transforming the harmful thermal energy into a controlled dissipation process that maintains system reliability.
Solution Approach 2:
The heat conducting block serves as an intermediary between the display module and the heat dissipation fins, efficiently transferring heat from the source to the dissipation structure. This intermediate thermal conduction path ensures that heat is systematically managed rather than accumulating in critical areas, thereby maintaining component reliability during operation.
2Temperature
If a heat dissipation assembly is added to the projection assembly, then heat dissipation is improved, but the device complexity increases
Solution Approach 1:
The heat dissipation assembly is merged with the existing housing structure of the projection assembly. The heat conducting block integrates with the housing, and the heat dissipation fins are positioned within the existing housing boundaries, combining thermal management functionality with the structural enclosure rather than adding separate, independent components.
Solution Approach 2:
The housing structure serves multiple functions: it provides mechanical support, encloses components, and simultaneously acts as part of the heat dissipation system through the integrated heat conducting block and fins. This multi-functionality reduces the need for additional dedicated heat dissipation components, thereby limiting the increase in device complexity.
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
The solution ensures effective heat dissipation during the imaging and projection process, enhancing the reliability and performance of the projection assembly by preventing heat-related issues.
Implementation Method 1
the plurality of heat dissipation fins surround the heat dissipation fan, and the heat dissipation fan faces the bottom cover, so that an air flow generated by the heat dissipation fan circulates through the first air holes or the second air holes
Implementation Method 2
The heat conducting block includes a first face and a second face which are opposite to each other. The second face faces the plurality of first air holes on the bottom cover, the display module is disposed on the first face, and the plurality of heat dissipation fins are disposed on the second face
Data Source
AI summary
Provided are a projection assembly, a display system and a vehicle. The projection assembly is applied to the vehicle, and the projection assembly includes: a housing, a bottom cover, a display module, a heat dissipation assembly and an imaging lens. The housing is connected with the bottom cover, and the housing and the bottom cover form an accommodating space, the heat dissipation assembly, the display module and the imaging lens are all disposed in the accommodating space, and the display module is disposed on the heat dissipation assembly; and the imaging lens includes a lens barrel and a lens assembly, the lens barrel is disposed on the heat dissipation assembly, the lens assembly is disposed in the lens barrel, and the lens barrel surrounds the display module, the display module faces the lens assembly, the housing is provided with an opening, and the lens assembly faces the opening.