Rotatable Airflow Blocking Portion for Server Expansion Slots
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Solution Overview
Problem
The heat dissipation efficiency in servers is compromised when electronic components are detached, as the airflow arrangement deviates from its original design, leading to insufficient cooling.
Innovation Solution
A rotatable airflow blocking portion is integrated into the server apparatus case, which rotates to retard airflow into empty expansion slots, minimizing the impact of absent components on airflow distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electronic components are detached from the server, then the server can be maintained or upgraded, but the airflow arrangement deviates from original design leading to insufficient heat dissipation
Solution Approach 1:
The blocking portion is designed to be rotatable rather than fixed, allowing it to dynamically adjust its position based on whether an expansion card is installed. When no card is present, the blocking portion rotates to block the empty slot; when a card is installed, it remains in the original position to allow airflow. This dynamic adjustment resolves the contradiction by adapting the airflow path to the actual component configuration, maintaining reliable heat dissipation while allowing component flexibility.
2Reliability
If a fixed blocking structure is used to prevent airflow deviation, then heat dissipation performance is maintained, but the device complexity increases
Solution Approach 1:
The blocking portion utilizes the existing airflow pressure and the mechanical interaction with expansion cards to automatically adjust its position. When an expansion card is inserted, the card itself pushes the blocking portion into the correct position. When no card is present, the blocking portion naturally rotates to block the empty slot. This self-adjusting mechanism maintains heat dissipation performance without requiring complex external control systems, sensors, or actuators, thus resolving the contradiction between reliability and device complexity.
Data Source
AI summary
An apparatus case includes a first casing member, a second casing member, a driving portion, a blocking portion, and a rotary shaft. The first casing member and the second casing member are detachably engaged with each other. The driving portion is disposed on the first casing member. The blocking portion and the rotary shaft are rotatably disposed on the second casing member and connected with each other. A server includes the apparatus case and a circuit board disposed on the first casing member of the apparatus case. When the second casing member moves from a first position to a second position relative to the first casing member, the driving portion drives the rotary shaft to rotate so that the rotary shaft drives the blocking portion to rotate above an expansion slot of the circuit board.