Multi-Cable Charging System with Dynamic Cooling Capacity Control
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Solution Overview
Problem
Conventional charging systems face challenges in efficiently cooling multiple charging units simultaneously, leading to potential overheating during slow or rapid charging due to insufficient cooling capacity.
Innovation Solution
A charging system with a centralized cooler and controller that manages multiple charging cables through cooling fluid channels, valves, and pumps, adjusting cooling capacity based on charging information to optimize cooling for each cable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single cooling system is used for multiple charging cables, then device complexity is reduced, but cooling capacity becomes insufficient when multiple cables charge simultaneously
Solution Approach 1:
The cooling system is segmented into multiple independent cooling circuits, with each circuit capable of independently cooling a specific charging cable. Each cooling circuit includes dedicated cooling channels, pumps, and control valves, allowing the system to provide sufficient cooling capacity to multiple cables simultaneously while maintaining manageable complexity through modular design
Solution Approach 2:
The cooling system is designed with multi-functionality to serve multiple charging cables with a single centralized cooling unit. The system can dynamically allocate cooling capacity to different cables based on their charging status and thermal requirements, enabling one cooling system to perform the function of multiple dedicated cooling systems
2Temperature
If cooling capacity is increased to handle multiple simultaneous chargers, then temperature control improves, but device complexity and cost increase
Solution Approach 1:
The cooling system incorporates dynamic control mechanisms including variable speed pumps and controllable valves that can adjust cooling capacity in real-time based on the number of active chargers and their individual thermal loads. This allows the system to scale cooling capacity dynamically rather than requiring maximum capacity to be always available
Solution Approach 2:
The system changes operational parameters such as coolant flow rate, pump speed, and valve opening degree according to the charging conditions. When multiple cables are charging, the system increases cooling capacity by adjusting these parameters rather than requiring additional physical cooling components
3Productivity
If coolant flow is increased for rapid charging, then cooling efficiency improves, but energy consumption increases
Solution Approach 1:
The cooling system incorporates feedback control that monitors battery temperature, charging current, and coolant temperature to dynamically adjust coolant flow rate. During rapid charging when high cooling demand exists, the system increases flow rate accordingly, but reduces flow rate during slow charging or when batteries are cool, optimizing energy consumption based on actual cooling needs
Solution Approach 2:
The system uses periodic monitoring and adjustment of coolant flow based on charging phase and battery temperature conditions, increasing flow during high-power charging phases and reducing it during low-power phases, thereby matching energy consumption to actual cooling requirements
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
Enables efficient cooling of multiple charging cables, improving space utilization and ensuring smooth charging operations by adapting to different charging conditions.
Implementation Method 1
a chiller connected to the base and configured to exchange heat between coolant and refrigerant
Implementation Method 2
a pump that pumps the coolant
Implementation Method 3
a radiator that radiates the coolant
Implementation Method 4
a heat dissipation fan that blows air to the radiator
Implementation Method 5
a compressor a condenser, an expansion device, and an evaporator through which refrigerant circulates
Implementation Method 6
a compressor a condenser, an expansion device, and an evaporator through which refrigerant circulates
Implementation Method 7
an evaporator through which refrigerant circulates, the evaporator may have a refrigerant path through which the refrigerant passes, a coolant path through which coolant that exchanges heat with the refrigerant passes
Data Source
AI summary
A charging system according to an embodiment comprises; a plurality of chargers to which a charging cable having cable channels formed inside is connected; a cooler that cools a cooling fluid; a cooling fluid inlet channel connected to the cooler and a plurality of charging cables and guiding the cooling fluid to the plurality of charging cables; a cooling fluid outlet channel connected to the plurality of charging cables and guiding the cooling fluid to the cooler; and a plurality of valves installed in at least one of the cooling fluid inlet channel and the cooling fluid outlet channel; and a controller that controls the plurality of valves according to charging information of the plurality of chargers.