Airfoil Vent Grid Partition for Low-Resistance Electronics Cooling
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Solution Overview
Problem
Conventional ventilation grids in electronic chassis cause disruption to airflow and increase resistance, reducing the efficiency of cooling fans and affecting the cooling of heat-generating electronic devices.
Innovation Solution
A partition device with a grid panel and airflow deflectors having an airfoil shape is used, where the deflectors redirect airflow to reduce resistance and create a low-pressure region, improving airflow efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional ventilation grids with sharp rectangular vent openings are used, then the structure is simple and easy to manufacture, but the airflow is disrupted and air resistance increases
Solution Approach 1:
The patent applies curvature by replacing sharp rectangular vent openings with rounded or curved edges. The airflow deflector features rounded leading edges and curved surfaces that guide air smoothly through the ventilation grid, eliminating the abrupt contractions and expansions caused by sharp corners. This curvature principle reduces turbulence and airflow disruption while maintaining manufacturing feasibility.
2Ease of manufacture
If conventional ventilation grids with sharp rectangular vent openings are used, then the structure is simple, but air resistance increases and cooling efficiency decreases
Solution Approach 1:
The curved surfaces and rounded edges of the airflow deflector minimize energy loss by preventing turbulence and eddy currents that occur with sharp rectangular openings. The smooth curvature allows air to transition gradually, reducing the energy required to push air through the ventilation grid and thereby improving cooling efficiency.
Solution Approach 2:
The airflow deflector acts as an intermediary element between the ventilation grid and the external environment. It mediates the airflow by gradually transitioning air from the confined aperture space to the open environment, reducing abrupt pressure changes and minimizing energy loss associated with sudden expansion.
3Object-affected harmful factors
If airflow deflectors with airfoil shape are added to the grid panel, then airflow resistance is reduced and cooling efficiency improves, but the device complexity increases
Solution Approach 1:
The airfoil-shaped airflow deflector incorporates curved surfaces and rounded edges that are relatively simple to manufacture using standard molding or fabrication techniques. While the shape is more complex than a simple rectangle, the curvature follows conventional aerodynamic forms that can be produced efficiently, balancing performance improvement with manufacturing complexity.
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 airfoil-shaped deflectors minimize airflow disruption and enhance cooling efficiency by reducing resistance and drawing air through the apertures, thereby improving the cooling performance of heat-generating electronic devices.
Implementation Method 1
The airflow deflector has an airfoil shape for reducing air resistance between the forced air and the grid panel. The airfoil shape has a leading edge that redirects initial contact with the forced air and a trailing edge that continues redirecting the forced air.
Implementation Method 2
The airflow deflector has an airfoil shape for reducing air resistance between the forced air and the grid panel... creating a low-pressure region that draws air through the aperture
Data Source
AI summary
A partition device for improving cooling of a heat-generating electronic device includes a grid panel and an airflow deflector. The grid panel has one or more apertures and a thickness that extends from a leading surface to a trailing surface. The apertures of the grid panel extend parallel to an airflow direction of forced air flowing across the thickness of the grid panel and through the apertures. The airflow deflector is attached at least in part within one of the apertures, and the airflow deflector has an airfoil shape for reducing air resistance between the forced air and the grid panel. The airfoil shape has a leading edge that redirects initial contact with the forced air and a trailing edge that continues redirecting the forced air.