EV Charging Display Assembly Cooling With Dual Centrifugal Airflow
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Solution Overview
Problem
Electronic display assemblies in outdoor environments face challenges with harsh conditions such as solar loading, extreme temperatures, and moisture, requiring effective thermal management, which traditional tube axial fans may not adequately address, especially in terms of airflow efficiency and noise reduction.
Innovation Solution
The use of centrifugal fans in open and closed loop airflow pathways within display assemblies to improve airflow efficiency, reduce noise, and enhance cooling uniformity, potentially integrating these fans without shrouding components to facilitate even air distribution and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If tube axial fans are used for cooling, then cooling capability is provided, but airflow efficiency is insufficient and noise is high
Solution Approach 1:
The patent changes the fundamental operating parameters of the fan system by transitioning from axial flow to radial flow configuration. This parameter change enables the centrifugal fan to achieve superior airflow efficiency and lower noise levels while maintaining adequate cooling capability through optimized radial velocity distribution and reduced turbulence.
2Reliability
If centrifugal fans are used, then airflow efficiency and noise reduction are improved, but device complexity increases due to fan configuration
Solution Approach 1:
The centrifugal fan design integrates multiple functions into a single component: it provides primary cooling, distributes air evenly across the display assembly, reduces noise emission, and lowers power consumption. This multi-functionality approach simplifies the overall system architecture by eliminating the need for separate air distribution components.
3Temperature
If traditional cooling systems are used, then thermal management is provided, but power consumption is high
Solution Approach 1:
The centrifugal fan system operates with reduced power consumption while maintaining effective thermal management through its efficient airflow generation and distribution characteristics. The design allows the system to achieve better cooling performance with less energy input, effectively making the cooling system more self-efficient.
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
Centrifugal fans provide improved airflow efficiency, even cooling, and reduced noise compared to axial fans, allowing for more effective thermal management and potentially reducing the number of fans and operating speed required, while also accommodating electric vehicle chargers within the display assembly framework.
Implementation Method 1
Electronic display assemblies which utilize centrifugal fans to provide forced air cooling
Implementation Method 2
provide open and/or closed loop airflow pathways through such housings to control temperatures
Data Source
AI summary
Electronic display assemblies with forced air cooling are provided. An open loop centrifugal fan forces ambient air through an open loop pathway extending through an electronic display subassembly. A closed loop centrifugal fan forces circulating gas through a closed loop airflow pathway including a rear compartment behind the electronic display subassembly. Electronic components for operating the display assembly and changing electric vehicles may be provided with the rear compartment.