EV Charger Display Assembly Cooling With Dual Airflow Paths
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Solution Overview
Problem
Existing electronic display assemblies for outdoor use face challenges in thermal management due to harsh conditions, and traditional tube axial fans are inefficient and noisy, necessitating a more effective cooling solution.
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 temperature control, while allowing integration of electric vehicle chargers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If tube axial fans are used for cooling, then cooling function is provided, but noise emission is high and power consumption is high
Solution Approach 1:
The patent changes the fundamental operating parameters of the fan system by switching from axial flow to radial flow configuration. This parameter change in airflow direction and fan blade geometry results in significantly reduced noise emission and power consumption while maintaining effective cooling performance for the display assembly
2Reliability
If tube axial fans are used, then cooling is provided, but airflow distribution is uneven
Solution Approach 1:
The patent changes the airflow pattern parameter from axial to radial flow, which fundamentally alters how air is distributed throughout the housing. The radial configuration naturally provides more uniform airflow distribution to all areas of the display assembly, improving temperature control consistency
3Use of energy by moving object
If centrifugal fans are used, then noise is reduced and power consumption is lower, but integration complexity increases
Solution Approach 1:
The patent combines the centrifugal fan unit with the display assembly housing into an integrated system. The fan is positioned to utilize the housing structure itself for airflow pathways, merging the cooling function with the existing display assembly design rather than adding separate complex cooling infrastructure
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 distribution, reduced noise, and lower power consumption, enabling efficient thermal management and integration of EV charging equipment within display assemblies.
Implementation Method 1
Electronic display assemblies which utilize centrifugal fans to provide forced air cooling are provided
Implementation Method 2
It is known to provide open and/or closed loop airflow pathways through such housings to control temperatures
Data Source
AI summary
Display assemblies with distributed airflow are provided. Side assemblies, each having a display layer located behind a cover are connected to a frame. A cavity is located, at least in part, between the side assemblies and spaced apart side panels of a frame. Open airflow pathways are fluidly connected to an ambient environment by way of an intake and extend, at least in part, along a rear portion of the electronic display subassembly of a respective one of the side assemblies to a respective one of exhausts. A closed airflow pathway includes the cavity and is fluidly separated from the ambient environment and the open airflow pathways, and extends, in part, within each of the side assemblies. A first set of fans is provided at or along the intake, and a second set of fans is provided at or along one of the side panels.