Removable Heat Pipe Cooling for Sealed Storage Devices
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Solution Overview
Problem
Rugged Information Handling Systems (IHS) face challenges in cooling due to sealed compartments that isolate heat-generating components from ambient air, limiting cooling capacity and potentially leading to component failures and malfunctions.
Innovation Solution
A heat pipe cooling system is implemented, extending between a storage device and a fan housing, with fan housing clips and a cooling plate to secure the heat pipe, allowing for effective heat transfer from the storage device to a physically isolated airflow cooling system, enabling efficient heat dissipation without direct ambient air ventilation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealed compartment is used to protect internal components from contaminants and water, then reliability is improved, but cooling capacity deteriorates due to isolation from ambient air
Solution Approach 1:
A heat pipe is introduced as an intermediary thermal conduction medium between the storage device and the fan housing. The heat pipe extends through the sealed compartment boundary, allowing heat to be conducted from the storage device to the fan housing where ambient air cooling occurs, thus maintaining the sealed protection while enabling thermal dissipation
Solution Approach 2:
The cooling system is segmented into two distinct zones: a sealed internal compartment containing the storage device and heat-generating components, and an external unsealed compartment containing the cooling fan. The heat pipe acts as a thermal bridge connecting these segmented zones, allowing each zone to fulfill its specific function independently
2Temperature
If forced ambient air cooling is used to ventilate heated air, then cooling capacity is improved, but reliability deteriorates due to exposure to contaminants and water
Solution Approach 1:
The heat pipe serves as a thermal intermediary that decouples the cooling function from the sealed compartment. Heat is conducted through the heat pipe to the fan housing exterior, where the cooling fan dissipates heat to ambient air without requiring direct air flow into the sealed compartment, thus maintaining both cooling capacity and environmental protection
Solution Approach 2:
The direct mechanical air ventilation system is replaced with a thermal conduction-based cooling system using the heat pipe. This substitution eliminates the need for air flow paths through the sealed compartment while achieving the same thermal management objective
3Temperature
If a heat pipe cooling system is added to transfer heat from storage device, then cooling capacity is improved, but device complexity increases
Solution Approach 1:
The fan housing is designed to serve multiple functions: it houses the cooling fan for air circulation, provides structural mounting points for the heat pipe via clips and screw holes, and acts as a heat dissipation surface. This multi-functionality reduces the need for separate dedicated cooling components
Solution Approach 2:
The heat pipe is designed with removable securing mechanisms (clips and screws) that allow for dynamic assembly and disassembly. This enables the heat pipe to be installed or removed based on cooling requirements without permanently modifying the storage device or fan housing structure
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 heat pipe cooling system effectively transfers heat from the storage device to the outer surface of the fan compartment, allowing the airflow cooling system to dissipate heat, thereby enhancing cooling capacity and reliability in rugged IHS environments.
Implementation Method 1
a heat pipe extending between the storage device at a first end of the heat pipe and a fan housing at a second end of the heat pipe
Data Source
AI summary
A system provides cooling to a storage device, such as solid-state drive, installed within a sealed compartment of an IHS (Information Handling System). The heat pipe extends between the storage device and a fan housing that seals a cooling fan in a physically isolated compartment from the sealed compartment of the IHS. A plurality of clips allow the heat pipe to be removably secured to an outer surface of the fan housing. A cooling plate is used to removably secure the heat pipe to a surface of the storage device. Once installed, the heat pipe transfers heat directly from the surface of the storage device to the outer surface of the sealed fan housing. The heat pipe may be uninstalled by removing screws that secure the cooling plate to the storage device and the heat pipe to the fan housing, allowing the storage device to be removed as needed.