Electric Storage Device Cooling System for EV Charging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High-power electrical charging of electric vehicles requires complex and costly upgrades for active cooling of both storage units and charging cables, leading to inefficiencies and increased costs due to redundant cooling systems.
Innovation Solution
A single cooling assembly is used for both the storage unit and charging cable, with a distributor device branching off cooling power to the charging cable, eliminating the need for separate cooling assemblies and reducing maintenance and certification costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If separate cooling assemblies are provided for the storage unit and charging cable, then each component can be cooled effectively, but the device complexity and cost increase due to redundant cooling systems
Solution Approach 1:
The patent combines the cooling functions for the storage unit and charging cable into a single integrated cooling assembly. The cooling circuit is configured to convey cooling medium to both the storage unit and the charging cable through this one assembly, eliminating the need for separate cooling systems and reducing overall device complexity while maintaining effective cooling of both components
Solution Approach 2:
The single cooling assembly is designed to serve multiple functions: it cools both the storage unit and the charging cable simultaneously. The cooling circuit can distribute cooling medium to different components as needed, making the cooling assembly a universal solution that handles thermal management for multiple heat-generating elements within the charging system
2Weight of moving object
If active cooling is provided for high-power charging cables, then thin and light cables can be used, but the device complexity and cost increase due to additional cooling assemblies
Solution Approach 1:
The cooling function for the charging cable is merged with the storage unit cooling system. Instead of adding a separate cooling assembly for the cable, the patent integrates cable cooling into the existing cooling circuit that already cools the storage unit, thereby avoiding additional complexity while enabling the use of lighter cables
3Reliability
If multiple cooling assemblies are provided for storage unit and charging cable, then cooling reliability is improved, but maintenance and certification costs increase
Solution Approach 1:
By merging the cooling functions into a single assembly, the patent reduces the number of components that require maintenance and certification. While the system still provides reliable cooling for both components, it does so through one integrated system rather than multiple separate systems, thereby reducing maintenance complexity and certification 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
This approach enhances efficiency by operating the cooling system at full load more frequently, reducing running costs and simplifying the infrastructure while maintaining effective cooling of both components.
Implementation Method 1
A cooling circuit is configured to convey thermal energy from the storage unit to the cooling assembly by means of a cooling medium
Implementation Method 2
a cooling circuit can then to this end dissipate thermal energy from the storage unit and convey it to the cooling assembly
Implementation Method 3
where the thermal energy is then drawn from the cooling medium of the cooling circuit in a known manner
Implementation Method 4
a distributor device is provided, which is configured to divert a portion of the cooling medium of the cooling circuit into the cooling channel of the charging cable
Data Source
AI summary
An electric storage device for providing electric energy for a charging operation of at least one electrically-driven motor vehicle has a storage unit for storing the energy, a cooling assembly for providing cooling capacity and a coolant circuit which is designed to convey thermal energy from the storage unit to the cooling assembly by a coolant. At least one charging cable is coupled to the storage unit, each charging cable being designed for connection to the motor vehicle and having a cooling channel. A distribution system is provided which is designed to divert some of the coolant into the cooling channel of the charging cable or to carry away thermal energy from the cooling channel into the coolant via a heat exchanger.