Plasma Actuator Cooling Layout for Targeted Electronic Airflow
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Solution Overview
Problem
Existing cooling devices inefficiently apply airflow to electronic components due to diffusion into shield cases, reducing overall cooling performance.
Innovation Solution
A cooling device utilizing a plasma actuator with a dielectric, first and second electrodes generating an induced flow, and a third electrode to control airflow direction, applying a potential difference to attract and concentrate airflow onto electronic components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If airflow is applied to the wall plate to change direction, then the airflow direction is altered toward the substrate, but the airflow diffuses into the shield case and cannot be efficiently applied to electronic components
Solution Approach 1:
The patent replaces the mechanical wall plate deflection system with a plasma actuator system that uses electric fields to generate and direct airflow. The plasma actuator includes a first electrode and second electrode that generate an induced flow through dielectric barrier discharge, eliminating the need for mechanical direction changing structures and enabling precise airflow targeting at electronic components.
Solution Approach 2:
The patent applies a voltage to the third electrode that generates a potential difference capable of attracting the induced flow between the first electrode and the third electrode. By controlling the voltage parameter, the airflow direction and concentration are dynamically adjusted to efficiently cool electronic components without diffusion into the shield case.
2Productivity
If a plasma actuator with multiple electrodes is used to generate and control induced flow, then airflow can be precisely directed to electronic components, but the device structure becomes more complex
Solution Approach 1:
The patent integrates the first electrode, second electrode, and third electrode into a unified plasma actuator structure mounted on the shield case. The dielectric layer is positioned between the first and second electrodes, and the third electrode is arranged on the inner surface of the shield case, creating a compact integrated system that achieves precise airflow control without excessive structural complexity.
Solution Approach 2:
The plasma actuator structure serves multiple functions: the first and second electrodes generate the induced flow through dielectric barrier discharge, while the third electrode controls and directs the flow toward electronic components. This multi-functional design achieves efficient cooling with a relatively compact structure by making each component serve multiple purposes.
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
Enhances cooling performance by efficiently directing airflow to electronic components, improving heat dissipation and maintaining airflow quality over time.
Implementation Method 1
a compressor (130) that draws in the refrigerant and compresses the refrigerant
Implementation Method 2
a condenser (140) that releases heat from the refrigerant to the surrounding air
Implementation Method 3
a condenser (140) that releases heat from the refrigerant to the surrounding air
Implementation Method 4
an expansion valve (150) that reduces the pressure of the refrigerant
Implementation Method 5
an evaporator (120) that cools air or liquid by evaporating the refrigerant
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A cooling device cools an electronic component using a plasma actuator provided with a dielectric, a first electrode arranged on one surface of the dielectric to generate an induced flow, and a second electrode arranged on the other surface of the dielectric, in which the electronic component and a third electrode are arranged in a flow direction of the induced flow, and a voltage applied to the third electrode is a voltage that generates a potential difference, which is capable of attracting the induced flow, between the first electrode and the third electrode.