RRH Concealment Module Baffles and Perforated Panels
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Solution Overview
Problem
Current concealment methods for wireless radio network equipment, particularly remote radio head (RRH) modules, fail to provide adequate cooling due to lack of ventilation and improper airflow, leading to overheating and reduced product life, and existing solutions have performance and cost disadvantages.
Innovation Solution
A concealed remote radio head assembly with strategically positioned perforated panels for airflow and baffles to direct air flow over the RRHs, preventing heated air from mixing with adjacent modules, and optimizing ventilation patterns to ensure efficient cooling and heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If RRHs are placed inside a concealment module, then aesthetic advantages and zoning compliance are improved, but cooling and ventilation are insufficient leading to overheating
Solution Approach 1:
The patent applies perforated panels with multiple holes arranged in patterns throughout the concealment module. These porous structures allow air to enter and exit the concealment while maintaining the aesthetic appearance. The perforated panels are positioned at strategic locations to create effective air intake and exhaust paths for cooling the RRHs without compromising the visual concealment.
Solution Approach 2:
The patent uses natural convection currents (pneumatic principle) where heated air rises and exits through upper perforated panels while cooler air enters through lower panels. This creates a passive airflow system that cools the RRHs without requiring active fans or pumps, maintaining both aesthetic appearance and effective cooling.
2Temperature
If openings are added to the concealment radome for ventilation, then cooling is improved, but aesthetic appearance deteriorates
Solution Approach 1:
Instead of large obvious openings, the patent uses perforated panels with numerous small holes distributed across the radome surface. This porous approach provides adequate total opening area for ventilation while maintaining the visual integrity of the radome, as the small perforations are less visually disruptive than large openings.
Solution Approach 2:
The patent applies different perforation patterns and densities at different locations on the radome. Areas requiring more airflow have higher perforation density, while aesthetic-critical areas have lower density. This local variation optimizes both cooling performance and appearance by tailoring the ventilation characteristics to specific zones.
3Temperature
If RRHs are placed at ground level outside concealment, then cooling is improved, but transmission performance deteriorates due to RF cable losses
Solution Approach 1:
The patent transitions the RRH placement from ground level (horizontal dimension) to elevated positions within the concealment module (vertical dimension). This dimensional change allows the RRHs to be close to the antennas on the tower for optimal RF performance while still receiving adequate cooling through the vertically-oriented airflow paths created by the perforated panel configuration.
Solution Approach 2:
The patent employs natural convection airflow that rises vertically through the concealment module. By positioning RRHs within this vertical airflow path and using upper exhaust panels, the system achieves effective cooling at elevated positions without requiring ground-level placement, thus maintaining both cooling and RF performance.
4Volume of stationary object
If multiple RRHs are positioned close together inside concealment, then space utilization is improved, but heat accumulation increases due to poor airflow
Solution Approach 1:
The patent creates localized airflow zones around each RRH using strategically positioned perforated panels. Each RRH has dedicated intake and exhaust paths, ensuring that heat from one device does not accumulate around adjacent devices. This local airflow management allows multiple RRHs to be positioned closely while maintaining effective individual cooling for each unit.
Solution Approach 2:
The patent utilizes natural convection where hot air rises and creates continuous airflow currents. By positioning exhaust panels above RRHs and intake panels below, the system creates upward airflow paths that carry heat away from each RRH. This pneumatic approach enables dense RRH placement while preventing heat accumulation through continuous natural convection currents.
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 solution effectively maintains proper temperature for RRHs within concealment modules, preventing overheating, reducing energy consumption, and adhering to zoning regulations while maintaining aesthetic and functional advantages.
Implementation Method 1
the outlet panel is located higher than the inlet panel... strategically positioned perforated panels for airflow... optimizing ventilation patterns to ensure efficient cooling and heat dissipation
Implementation Method 2
first baffle, located under the first, second and third remote radio heads prevents cool air from the inlet panels from being diverted between the remote radio heads and the support
Implementation Method 3
these devices require adequate cooling and ventilation to operate properly... RRH orientation also plays a large role in proper cooling... RRHs dissipated heat
Data Source
AI summary
Disclosed is an apparatus with a concealment module, the concealment module including an inlet panel and an outlet panel, the outlet panel located higher than the inlet panel. Also included is a remote radio head disposed with the concealment module, mounted on a support, and located between the inlet panel and the outlet panel. A first baffle is located under the remote radio head to prevent cool air from the inlet panel from being diverted to a space between the remote radio head and the support. A second baffle is located to direct cooling air over a back of the remote radio head. A third baffle is located on top of the remote radio head to direct heated cooling air to the outlet panel. A fourth baffle is located to direct cooling air over the front of the remote radio head.