Energy Storage Cooling via Distribution Plate Airflow
Solution Overview
Problem
Energy storage systems face temperature deviations and heat generation issues due to the charging and discharging of high-capacity rechargeable batteries, leading to performance degradation and reduced lifespan, which existing cooling systems fail to uniformly address.
Innovation Solution
The energy storage device employs a configuration with racks installed on an access floor inside a container, utilizing distribution plates and a blower-ventilator system to uniformly distribute cooling air currents, minimizing temperature variations between racks and battery packs through controlled airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If high-capacity rechargeable batteries are used and battery packs are highly concentrated, then energy storage capacity is improved, but heat generation increases excessively
Solution Approach 1:
The patent extracts the harmful heat generated by battery packs and removes it from the system through dedicated cooling channels. The cooling air flow paths are designed to extract heat from battery packs and transport it to the exterior of the container, effectively separating the heat generation source from the battery storage system.
Solution Approach 2:
The patent introduces cooling air as an intermediary substance to transfer heat from battery packs to the external environment. The cooling air acts as a mediator that absorbs heat from the batteries and carries it away through the cooling channels, preventing direct heat accumulation in the battery storage system.
2Temperature
If conventional air conditioning systems are used to cool battery packs, then cooling function is provided, but temperature deviations increase between different regions
Solution Approach 1:
The patent segments the cooling system into multiple independent cooling channels, with each channel dedicated to cooling specific battery packs or groups of battery packs. This segmentation ensures that each region receives targeted cooling, preventing temperature deviations between different areas of the container.
Solution Approach 2:
The patent implements local quality by providing customized cooling solutions for different regions within the container. Each cooling channel is designed to address the specific thermal characteristics of the battery packs it serves, ensuring optimal temperature control in each local area rather than applying a uniform cooling approach throughout.
3Object-generated harmful factors
If cooling air currents are supplied to battery packs, then heat dissipation is improved, but warm air and cooling air mix by convection reducing cooling efficiency
Solution Approach 1:
The patent segments the air flow paths into separate cooling air channels and exhaust air channels. This segmentation prevents the mixing of warm exhaust air with incoming cooling air, maintaining the temperature differential necessary for efficient heat dissipation and avoiding energy loss from convection mixing.
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement of cooling channels and air flow paths to separate cooling air supply and warm air exhaust routes. By designing the cooling system in multiple dimensions with dedicated pathways, the patent prevents air mixing while maintaining effective heat dissipation from the battery packs.
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 configuration ensures uniform internal temperature control within the container, significantly reducing temperature deviations between racks and battery packs, thereby enhancing the performance and lifespan of the rechargeable batteries.
Implementation Method 1
the warm air current and a newly supplied cooling air current are mixed in the middle by convection
Implementation Method 2
Each rechargeable battery generates heat since it repeatedly performs charging and discharging operations due to its internal electrochemical reaction
Data Source
AI summary
An energy storage device for uniformly controlling internal temperature of a container by controlling a flow of a cooling air current includes: racks for accommodating a plurality of battery packs; a container for accommodating the racks; an access floor provided at a lower part of the container for supplying a cooling air current to the racks through supply openings; and a distribution plate provided under the access floor to distribute an amount of the cooling air current that is supplied from under the access floor.