Charging Station Display Thermal Control for Power and Damage Limits

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Solution Overview

Problem

Charging station display devices face damage from improper temperature operation and generate waste heat, which affects power provision and storage capacity, especially in fast charging stations for electric vehicles.

Innovation Solution

A method to determine and adjust the operating state of the display device based on temperature parameters, including using sensors to monitor display device and charging station temperatures, and controlling the backlight and air conditioning load to reduce waste heat and prevent damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the display device is operated continuously to provide information and advertisements, then the usability and customer service quality improve, but the waste heat generation increases and the display device may suffer permanent damage at improper temperatures

Engineering Contradiction:

Improvedisplay device usabilityVSAvoidwaste heat generation

Core Design Contradiction:

Ease of operationVSLoss of energy

Solution Approach 1:

The display device operating state is dynamically adjusted based on real-time temperature monitoring. The control device changes the display device operation between different states (fully on, partially on, fully off) according to the current temperature conditions, making the system adaptive rather than static.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

A temperature sensor continuously monitors the temperature of the display device and provides feedback to the control device. The control device uses this feedback to determine the appropriate operating state, creating a closed-loop control system that automatically responds to temperature changes.

Inventive Principle:

Principle #23Feedback

2Illumination intensity

If the display device is operated at high brightness to ensure visibility, then the information display quality improves, but the waste heat generation increases which negatively impacts power supply and battery storage capacity

Engineering Contradiction:

Improvedisplay brightnessVSAvoidpower supply capacity

Core Design Contradiction:

Illumination intensityVSPower

Solution Approach 1:

The invention changes the operating parameters of the display device (brightness level, backlight intensity) based on temperature conditions. When temperature is high, the display operates at lower brightness or is turned off, thereby reducing power consumption and waste heat generation while still maintaining adequate visibility when conditions permit.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If the display device is kept on to provide continuous information, then the customer service quality improves, but the display device may suffer permanent damage when temperature exceeds operational limits

Engineering Contradiction:

Improvecustomer service continuityVSAvoidtemperature damage risk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system proactively monitors temperature and takes preventive action by adjusting the display device operating state before damage can occur. When temperature approaches critical levels, the control device reduces or stops display operation in advance, preventing thermal damage while minimizing service interruption.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

4Temperature

If the air conditioning device operates at high load to cool the charging station, then the temperature control improves, but the overall system efficiency decreases due to the additional energy consumption

Engineering Contradiction:

Improvecharging station temperature controlVSAvoidair conditioning energy consumption

Core Design Contradiction:

TemperatureVSLoss of energy

Solution Approach 1:

The invention converts the waste heat from the display device into a controllable parameter. By reducing display device operation during high temperature periods, the system reduces the thermal load on the air conditioning device, thereby reducing its energy consumption. The potential harm of reduced display functionality is converted into the benefit of lower overall energy consumption and reduced cooling requirements.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

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

This approach effectively reduces waste heat, maintains power provision, and protects the display device from damage by optimizing its operating state according to temperature conditions, thereby enhancing the performance and reliability of the charging station.

Implementation Method 1

the display device temperature is determined by means of a display device temperature sensor

Methodology Applied

Scientific EffectTemperature sensing:

Implementation Method 2

a load state of an air conditioning device of the charging station is used as the charging station temperature state

Methodology Applied

Scientific EffectThermal load management:

Data Source

PatentEP4494921A1Method for operating a display device of a charging station, control device for carrying out such a method and charging station comprising said display device and such a control device

Publication Date: 2025.01.22 ADS TEC ENERGY GMBH

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AI summary

The invention relates to a method for operating a display device (3) of a charging station (1), wherein - based on a display device temperature (tAV) assigned to the display device (3) and a charging station temperature state (ZLS) assigned to the charging station (1), an operating state (ZAV) of the display device (3) is determined, wherein - the display device (3) is put into the operating state (ZAV).