Adjustable Flow Resistance Device for Server Cooling
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Solution Overview
Problem
Existing flow resistance devices for electronic systems, such as blade-type servers, are inefficient as they require redesign and replacement for each new component or host, failing to provide adaptable airflow resistance for varying system components.
Innovation Solution
An adjustable flow resistance device comprising a base and a moveable board that can be interchanged to alter the cross-sectional area of airflow channels, allowing for dynamic adjustment of airflow resistance without the need for new devices, using positioning mechanisms for quick and precise settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If flow resistance devices with different pass way cross-sections are designed for each specific flow resistance, then the heat dissipating performance is improved, but the device complexity and redesign requirements increase
Solution Approach 1:
The base is designed with a standardized structure that can accommodate multiple different boards, each providing different flow resistance characteristics. This allows a single base design to serve multiple functions by simply changing the board component, eliminating the need to redesign the entire flow resistance device for different heat dissipation requirements
Solution Approach 2:
The flow resistance device is divided into two independent parts: a base and a board. The board can be detached and replaced independently to change flow resistance characteristics. This segmentation allows the system to achieve different heat dissipation performances by swapping boards while keeping the base structure unchanged
2Adaptability or versatility
If flow resistance devices are relocated for every component or host, then the airflow resistance matches the specific component needs, but the loss of time and efficiency increase
Solution Approach 1:
The standardized base design with interchangeable boards enables the same base to be used across different components and hosts. The adaptability is achieved not by relocating the entire device but by swapping the board component, dramatically reducing the time and effort required to adapt to different system requirements
Solution Approach 2:
The board is designed to be movable and interchangeable on the base, allowing dynamic adjustment of flow resistance characteristics. This dynamic configuration enables quick adaptation to different components or hosts without permanent relocation or complex redesign
3Manufacturing precision
If fixed cross-section channels are used in flow resistance devices, then the manufacturing precision is improved, but the adaptability to different components decreases
Solution Approach 1:
The channel structure is segmented into a fixed base portion and a variable board portion. The base maintains precise, fixed cross-section channels for manufacturing accuracy, while the board provides variable flow resistance characteristics. This segmentation allows both precise manufacturing and adaptability to different components
Solution Approach 2:
Different parts of the device have different properties: the base has fixed, precisely-manufactured channels, while the board provides variable flow resistance. This local differentiation allows the system to maintain manufacturing precision in the base while achieving adaptability through the interchangeable board with different flow resistance characteristics
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
Enables flexible and efficient airflow management by allowing for customizable airflow resistance without the need for device replacement, accommodating different components and hosts within the same system, enhancing heat dissipation capabilities.
Implementation Method 1
When the board is positioned at the first position, the cross-section of the channel for the air flow to pass is smaller than the cross-section of the channel for the air flow to pass when the board is positioned at the second position
Implementation Method 2
When the first board is disposed on the base, the cross-section of the channel for the air flow to pass is smaller than the cross-section of the channel for the air flow to pass when the second board is disposed on the base
Data Source
AI summary
By using a base in cooperation with a moving board, a first flowing area formed by a plurality of openings on the base may be partially blocked by the moving board moving relative to the base, thereby forming a second flowing area that provides different flow resistances. The flow resistance of an adjustable flow resistance device can be adjusted easily and dynamically, without replacing to another device. The flow resistance of the device may also be adjusted to various predefined default settings precisely and speedily by further applying a positioning mechanism that utilizes various predefined positioning holes or a rotary element.