Heat Sink Air Baffle Mounting to Prevent Cooling Air Leakage
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Solution Overview
Problem
Conventional air baffles in heat dissipating assemblies require additional metal hooking structures for installation, which is time-consuming and costly, and often result in imprecise fitting leading to airflow leakage.
Innovation Solution
The heat dissipating assembly incorporates a heat sink and air baffle design where the air baffle shares fasteners with the heat sink for installation, eliminating the need for additional screws or metal hooking structures and ensuring precise positioning to prevent leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional metal hooking structures are used to install the air baffle, then the air baffle can be securely mounted, but the assembly process becomes time-consuming and costly
Solution Approach 1:
The patent combines the air baffle installation with the heat sink installation by using the same fasteners (screws) for both components. The fasteners pass through both the heat sink and air baffle simultaneously, eliminating the need for separate installation steps and additional hooking structures, thereby reducing assembly time while maintaining secure mounting.
Solution Approach 2:
The fasteners serve multiple functions: they secure both the heat sink and the air baffle to the circuit board, and they align both components during installation. This multi-functionality eliminates the need for dedicated hooking structures for the air baffle, reducing both assembly time and component complexity.
2Reliability
If additional metal hooking structures are used to install the air baffle, then the air baffle can be securely mounted, but the manufacturing cost increases
Solution Approach 1:
The patent merges the installation of the air baffle with the heat sink installation process, using the same fasteners for both components. This eliminates the need for additional metal hooking structures, reducing material costs and simplifying the manufacturing process while ensuring secure mounting of the air baffle.
Solution Approach 2:
The fasteners are designed to perform multiple functions: securing both the heat sink and air baffle, and providing alignment features. This multi-functionality reduces the total number of components needed, lowering manufacturing costs while maintaining reliable mounting of the air baffle.
3Ease of operation
If the air baffle is disposed on the heat sink with structure configuration, then installation is simplified, but it creates large gaps to the heat sink resulting in leakage of cooling air
Solution Approach 1:
The patent replaces the mechanical interference fit or gap-tolerant structure with a fastener-based system that provides precise positioning and secure attachment. The fasteners ensure the air baffle is firmly mounted to the heat sink, eliminating gaps and preventing cooling air leakage while maintaining installation simplicity through the combined installation process.
4Reliability
If separate fasteners are used for heat sink and air baffle installation, then each component can be securely mounted, but the assembly process becomes more complex
Solution Approach 1:
The patent combines the mounting of the heat sink and air baffle into a single operation using the same fasteners. The fasteners pass through both components simultaneously, securing them to the circuit board in one step, thereby reducing assembly process complexity while maintaining secure mounting of both components.
Solution Approach 2:
The fasteners are designed to serve multiple purposes: securing both the heat sink and air baffle, and providing alignment features for both components. This multi-functionality reduces the total number of installation steps and components needed, simplifying the assembly process while ensuring reliable mounting of all components.
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 design simplifies the assembly process, reduces costs, and prevents airflow leakage by using the same fasteners for both components, allowing for precise installation and combined installation processes.
Implementation Method 1
the base plate can be in direct thermal contact with the heat source and transfer heat absorbed from the heat sources to the fins
Implementation Method 2
uses air as a medium to take away heat from electronic elements
Implementation Method 3
The air baffle is disposed on the heat sink to help guiding airflow more directly to flow through the heat sink
Data Source
AI summary
A heat dissipating assembly including a heat sink and an air baffle, the heat sink includes a base portion, a heatsink portion, installation channels, and first installation hole portions, the base portion is stackable on an electronic component, the heatsink portion comprises fins extend outwardly from the base portion, the first installation hole portions are located on the base portion and respectively correspond to the installation channels, the air baffle is disposed on the heatsink portion and includes a second installation hole portion, the second installation hole portion selectively corresponds to one of the installation channels and one of the first installation hole portions.