Battery Pack Cooling Layout With Condensation Absorption
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Solution Overview
Problem
Existing battery pack cooling systems face inefficiencies in cooling battery modules and managing condensation, with previous methods either failing to address moisture in the system or increasing costs through complex water management systems.
Innovation Solution
A battery pack cooling system incorporating a battery pack case with a cooling fluid passage and a cooling medium passage, where a water absorber made of a water-absorbable material is used to absorb condensed water on the cooling medium passage, preventing it from reaching the battery module and simplifying the cooling system by integrating the cooling fluid and medium passages within the battery pack case.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling system is added to cool the battery module, then the battery temperature is maintained in optimal range, but water condensation occurs in the battery pack case
Solution Approach 1:
The patent converts the harmful condensation water into a beneficial cooling resource. The cooling medium passage is designed to allow condensation water to collect and flow along the passage, utilizing the phase change from vapor to liquid to enhance the cooling effect on the battery module.
Solution Approach 2:
The cooling medium passage serves as an intermediary structure that performs dual functions: it facilitates heat transfer from the battery to the cooling fluid, and simultaneously collects and manages condensation water by allowing it to flow along the passage to designated drainage points.
2Object-affected harmful factors
If complex water management systems are implemented to manage condensation, then condensation control is improved, but system complexity and cost increase
Solution Approach 1:
The cooling medium passage is designed to perform multiple functions simultaneously: cooling the battery module, collecting condensation water, and directing water to drainage points. This multi-functional design eliminates the need for separate condensation management components.
Solution Approach 2:
The system utilizes the natural condensation process and gravity-driven water flow to achieve self-management of condensation. The cooling medium passage automatically collects and directs condensation water without requiring additional active management systems.
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 system effectively cools the battery module by circulating cooling fluid and medium, preventing condensation on the battery module, reducing humidity, and maintaining optimal temperature, thus enhancing the battery's charge and discharge characteristics while simplifying the cooling system and reducing costs.
Implementation Method 1
Cooling fluid for cooling the battery module is to flow through the cooling fluid passage
Implementation Method 2
The cooling medium passage is configured to exchange heat with the cooling fluid
Implementation Method 3
water condensation may occur in the battery or constituent devices disposed in the vicinity of the battery
Implementation Method 4
The water absorber is made of a water absorbable material. The water absorber is configured to absorb water that is condensed on the cooling medium passage
Data Source
AI summary
A battery pack cooling system includes a battery pack case, a cooling fluid passage, a cooling medium passage and a water absorber. The battery pack case houses a battery module. The cooling fluid passage is disposed in a vicinity of the battery module. Cooling fluid for cooling the battery module is to flow through the cooling fluid passage. The cooling medium passage is configured to exchange heat with the cooling fluid. The cooling medium passage is disposed so as to be exposed to a space in the battery pack case. Cooling medium is to flow through the cooling medium passage. The water absorber is made of a water absorbable material. The water absorber is configured to absorb water that is condensed on the cooling medium passage.