Liquid-Cooled Charging Gun Head for High-Current Joint Heat
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Solution Overview
Problem
The high charging currents in electric vehicle charging guns generate excessive heat at the cable and terminal joints, reducing efficiency and posing a fire risk.
Innovation Solution
A liquid cooling system for charging guns, comprising a head cooling assembly with seal assemblies and coolant pipes to continuously carry away heat from the cable and terminal joints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high charging current is used to improve charging speed, then charging efficiency is improved, but excessive heat is generated at the cable and terminal joints causing safety issues and reduced efficiency
Solution Approach 1:
A coolant inlet pipe is introduced as an intermediary component to carry cooling liquid through the terminal head, enabling heat removal from the cable and terminal joints without changing the high charging current operation
Solution Approach 2:
A liquid cooling system is implemented using hydraulic principles, where coolant flows through channels in the terminal head to actively remove heat generated at high current joints, transforming the thermal management approach from passive to active cooling
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 reduces the temperature at the cable and terminal joints, enhancing charging efficiency and safety by continuously removing heat through coolant circulation.
Implementation Method 1
a liquid cooling system for a charging gun includes a head cooling assembly, a coolant inlet pipe, and a coolant outlet assembly... continuously carry away heat from the cable and terminal joints
Implementation Method 2
coolant circulation... continuously carry away heat... enhancing charging efficiency and safety by continuously removing heat through coolant circulation
Data Source
AI summary
Provided is a liquid cooling system for a charging gun and a charging gun, relating to the technical field of charging guns. In the liquid cooling system for a charging gun, a head cooling assembly includes a head housing, a first head seal assembly, a second head seal assembly, and a third head seal assembly. The head housing is provided with a terminal port and a head inlet. The terminal passes through the terminal port and the connection end of the terminal is accommodated in the head housing. The head inlet is configured to enable a cable extend into the head housing to connect to the connection end of the terminal. The first head seal assembly is sealingly disposed at a joint between the connection end of the terminal and the cable. The second head seal assembly is sealingly disposed at the terminal port.