Gas Compression Cooling for Miniaturized Electronics Heat Transfer
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Solution Overview
Problem
Conventional miniaturized cooling devices, such as Peltier devices, have limited energy efficiency and are not optimized for high-performance heat transfer in electronic components like inductive wireless chargers.
Innovation Solution
A cooling device utilizing a deformable body filled with gas, actuated by an electric motor to perform a thermodynamic cycle of adiabatic compression and expansion, transferring heat from a heat absorbing body to a heat releasing body, enhancing energy efficiency and allowing for miniaturization and low-cost manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If Peltier devices are used for miniaturized cooling, then the device can be easily miniaturized and simply structured, but the energy efficiency is limited
Solution Approach 1:
The patent applies pneumatic principles by using a gas-filled deformable body that undergoes compression and expansion cycles. The gas acts as a working fluid that transfers heat through thermodynamic processes, replacing the solid-state Peltier effect with a pneumatic-thermal system that achieves higher energy efficiency
Solution Approach 2:
The invention changes the physical parameters of the gas within the deformable body by periodically compressing and expanding it. During compression, the gas temperature increases to release heat; during expansion, the gas temperature decreases to absorb heat, creating an efficient heat transfer cycle that improves energy efficiency
2Volume of moving object
If Peltier devices are used for cooling electronic components, then the structure is simple and easy to miniaturize, but the energy efficiency remains constrained
Solution Approach 1:
The patent utilizes thermal phase transitions of the gas through compression and expansion. The gas undergoes adiabatic compression (temperature rise) and adiabatic expansion (temperature drop), creating effective heat transfer phases that improve cooling efficiency while maintaining compact dimensions
Solution Approach 2:
The system employs periodic compression and expansion of the gas-filled deformable body to create cyclic heat transfer. The motor-driven compression member alternately compresses and releases the deformable body, generating continuous cooling cycles that enhance energy efficiency in a compact form
3Loss of energy
If conventional cooling devices are used, then heat transfer can be achieved, but energy efficiency is not optimized for high-performance applications
Solution Approach 1:
The patent introduces a gas-filled deformable body as an intermediary heat transfer medium between the heat source and heat sink. This intermediary undergoes thermodynamic cycles to efficiently transfer heat, reducing energy loss while the overall structure remains manufacturable using conventional techniques
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 device achieves high energy efficiency, silent operation, and effective heat transfer, making it suitable for cooling electronic components while being easily miniaturized and cost-effective.
Implementation Method 1
all the gas contained therein moves in another portion, such as a second portion being in contact with the heat releasing body and undergoing to an adiabatic compression. This adiabatic compression may cause the gas temperature to increase above the temperature of the heat releasing body.
Implementation Method 2
the compressed gas is free to flow and to inflate the entire deformable body again, thereby undergoing to an adiabatic expansion. This adiabatic expansion causes the gas temperature to decrease below the temperature of the heat absorbing body.
Implementation Method 3
While the movable body keeps the second portion of the deformable body squeezed, the hot gas heats the heat releasing body that in turn releases part of this heat to the environment. In doing this, the gas temperature decreases through an isochoric process.
Implementation Method 4
While the first portion of the deformable body is kept inflated, the cold gas cools the heat absorbing body that in turn draws heat from a space or an object to be cooled. In doing this, the gas temperature increases through an isochoric process.
Data Source
AI summary
It is disclosed a cooling device comprising: a heat absorbing body, a heat releasing body, and a heat transferring system configured to transfer heat from the heat absorbing body to the heat releasing body, wherein the heat transferring system comprises: a deformable body, a gas within the deformable body, a movable body capable of alternatingly squeezing and releasing a portion of the deformable body, and an electric motor configured to actuate the movable body.