EV Charging Connector Pre-Conditioning With Dielectric Liquid Cooling
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Solution Overview
Problem
Charging piles and electric vehicle charging guns generate excessive heat during the charging process, affecting the lifespan and reliability of electronic components, and are also vulnerable to damage from low temperatures, necessitating a solution to maintain optimal operating temperatures.
Innovation Solution
A charging system with a temperature control module and dielectric liquid pipeline that executes a pre-adjustment procedure before charging, using sensing units to detect the presence of an electric vehicle and adjust the temperature of the charging device and connector to prevent extreme temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the charging device operates at high power during charging, then the charging efficiency is improved, but the temperature of electronic components increases excessively
Solution Approach 1:
The system performs preliminary cooling action before the charging procedure starts. The control module detects when a vehicle approaches or enters the charging parking space, and activates the cooling device in advance to lower the temperature of electronic components before high-power charging begins, preventing overheating during efficient charging operation
2Adaptability or versatility
If the charging device operates in low temperature environment, then the device can function in various climates, but the electronic components may be damaged by low temperature
Solution Approach 1:
The system performs preliminary heating action before the charging procedure starts in cold environments. When the control module detects low ambient temperature, it activates the heating device in advance to raise the temperature of electronic components to an appropriate operating range before charging begins, preventing temperature-related damage while maintaining climate adaptability
Solution Approach 2:
The patent introduces a dielectric liquid pipeline as an intermediary thermal management medium. The dielectric liquid circulates through the charging device and charging connector, transferring heat efficiently while providing electrical insulation. This intermediary substance enables effective thermal control in both high and low temperature environments without compromising the electrical functionality of the charging system
3Device complexity
If no temperature pre-adjustment is performed, then the device structure is simpler, but the electronic components are exposed to unexpected temperature fluctuations
Solution Approach 1:
The system implements self-service temperature management by automatically detecting environmental conditions and vehicle presence, then autonomously activating heating or cooling functions as needed. The control module monitors temperature sensors and ambient conditions, making decisions about temperature adjustment without manual intervention, thereby protecting electronic components while maintaining reasonable system complexity
Solution Approach 2:
The dielectric liquid pipeline serves as an intermediary thermal management system that efficiently transfers heat between the charging components and the external environment. This intermediary fluid-based thermal control mechanism provides effective temperature regulation with relatively simple device structure, protecting electronic components from extreme temperature fluctuations
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 system effectively maintains electronic components at appropriate temperatures, extending their lifespan and ensuring reliable operation by preventing damage from unexpected temperature fluctuations during charging.
Implementation Method 1
execute a temperature pre-adjustment procedure on the charging device and the charging connector through a dielectric liquid pipeline to adjust the temperatures of the charging device and the charging connector
Data Source
AI summary
The present disclosure is related to a charging device and a charging system thereof. The charging system includes a plurality of sensing units, a charging connector and a charging device. The charging device is communicatively connected to the plurality of sensing units. The charging device is connected to the charging connector through a dielectric liquid pipeline. The charging device is used to receive at least one sensing signal from the sensing units, and based on the at least one sensing signal, the charging device executes a temperature pre-adjustment procedure on the charging device and the charging connector through the dielectric liquid pipeline before a charging procedure being executed. Therefore, the temperatures of the charging device and the charging connector are adjusted by the temperature pre-adjustment procedure.