关键词: 接触件；温度传感器；充电插座；可靠性

Abstract: This paper investigates temperature monitoring schemes for electric vehicle charging sockets. Electric vehicles utilize conductive charging, which may cause temperature rise issues such as overheating, ablation, and over-temperature due to Joule heating. To prevent safety hazards caused by overheating, the accuracy and response speed of temperature sensors placed at different positions were verified and analyzed. Validation and analysis indicate that the placement of temperature sensors significantly affects response sensitivity. Positions closer to the heat source exhibit higher accuracy and lower response lag. Placing the temperature sensor inside the contact component meets an accuracy requirement of [-4 K, 0].

Key words: contact component; temperature sensor; charging socket; reliability