Battery Pack Spray Cooling Unit for Heat Dissipation
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Solution Overview
Problem
Conventional battery packs face challenges in effectively dissipating heat generated by battery cells, which can lead to performance deterioration and reduced lifespan, especially in high-tech devices and electric vehicles where quick drop methods limit circulation cooling applications.
Innovation Solution
A battery pack design incorporating a spray unit that sprays insulation fluid, such as pure water, onto the battery module to enhance cooling efficiency, with a fluid tank and pump system for fluid supply and recovery, allowing for detachable components for easy maintenance and replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional battery packs use traditional cooling methods, then the structure is simple, but the cooling efficiency is insufficient leading to heat accumulation
Solution Approach 1:
The patent utilizes the phase transition of insulation fluid from liquid to gas state during spraying onto the battery module. This phase change process absorbs heat effectively, providing superior cooling performance compared to conventional liquid cooling methods while maintaining a relatively simple spray unit structure
Solution Approach 2:
The patent employs a spray unit with spray pipes and spray holes to deliver insulation fluid directly onto the battery module surfaces. This pneumatic/hydraulic spraying mechanism enables efficient heat dissipation through direct fluid contact and phase transition, achieving high cooling efficiency without complex cooling system architecture
2Ease of repair
If the battery pack uses a fixed cooling system, then the structure is stable, but maintenance and replacement are difficult
Solution Approach 1:
The cooling system is divided into separable components: the spray unit with spray pipes and spray holes can be detached from the battery pack structure. This segmentation allows the spray unit to be easily removed, maintained, or replaced without disassembling the entire battery pack, significantly improving maintenance accessibility
Solution Approach 2:
The spray unit is designed with detachable connections to the battery pack structure, transforming the cooling system from a fixed static configuration to a dynamic, reconfigurable system. This enables flexible maintenance operations while maintaining structural integrity during normal operation
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 solution effectively dissipates heat from battery cells by using insulation fluid in both liquid and gas states, improving cooling characteristics and facilitating easy maintenance, thereby extending battery pack performance and lifespan.
Implementation Method 1
The insulation fluid may be sprayed in a liquid state or in a gas state
Implementation Method 2
The insulation fluid may be sprayed in a liquid state or in a gas state
Data Source
AI summary
A battery pack including a battery module including at least one battery cell; and a spray unit above the battery module for spraying an insulation fluid onto the battery module.