Battery Water Cooling System with Projective Heat Transfer Plate
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Solution Overview
Problem
Existing battery cooling systems, particularly in electric and hybrid vehicles, face inefficiencies in heat dissipation due to limited space and increased battery capacity, leading to performance drops and high costs associated with custom battery cell designs and replacement challenges.
Innovation Solution
A water cooling system for batteries, comprising a cartridge with surface-contacting battery cells, a base heat transfer plate, a projective heat transfer plate, and a cooling channel with spacers, utilizing thermal interface material to enhance heat transfer and allowing for easy configuration and adjustment of battery capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If air cooling is used for battery cells, then the cooling system is simple to implement, but the cooling efficiency is insufficient and cannot handle increased battery capacity
Solution Approach 1:
The patent transitions from air cooling to water cooling by introducing cooling channels that circulate cooling water through the battery pack structure. The cooling water absorbs heat from the battery cells through thermal contact, providing superior cooling efficiency that can handle increased battery capacity while maintaining manageable system complexity through integrated channel design
2Reliability
If batteries are separately designed for individual vehicle models, then the battery performance can be optimized for each vehicle, but the cost of battery cells increases and replacement becomes difficult
Solution Approach 1:
The battery pack is divided into modular units with standardized battery cells arranged in specific configurations. The cooling system is also modularized with standardized channels that can accommodate different numbers of battery cells. This segmentation allows the same basic module to be scaled for different vehicle requirements by simply adding or removing battery cell modules, maintaining performance optimization while reducing costs and enabling easy replacement
Solution Approach 2:
The patent creates a universal battery module design that can serve multiple vehicle models. The standardized battery cells and cooling channels form a platform architecture that can be configured for different capacity requirements. This universality allows a single design to fulfill multiple functions across different vehicle types, reducing development costs and enabling interchangeable replacement
3Quantity of substance
If the number of battery cells is increased to meet vehicle range requirements, then the vehicle range increases, but the heat generation increases and cooling efficiency decreases
Solution Approach 1:
The patent introduces water-based cooling channels that circulate cooling water through the battery pack. The cooling water has high specific heat capacity and efficiently absorbs the increased heat generation from higher battery cell quantities. The cooling channels are strategically positioned to maximize thermal contact with battery cells, maintaining effective cooling even as battery capacity and heat generation scale up
4Volume of moving object
If battery cells are arranged in limited space, then the vehicle space utilization improves, but the cooling channel formation becomes limited and cooling efficiency drops
Solution Approach 1:
The patent merges the cooling channel structure with the battery pack housing and structural components. The cooling channels are integrated into the existing structural elements, eliminating the need for separate cooling channel formations that would consume additional space. This integration maintains effective cooling while maximizing space utilization for battery cells
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 system effectively cools batteries in a compact space using high-capacity cooling water, standardizes battery designs for various vehicles, and allows for easy capacity adjustments and replacement, improving thermal efficiency and reducing costs.
Implementation Method 1
a base heat transfer plate having a first side being in surface contact with a side of the cartridge; a projective heat transfer plate protruding on a surface where the base heat transfer plate is in contact with the cartridge
Implementation Method 2
a cooling channel being in surface contact with second sides of the base heat transfer plate and having a hole through a center to pass cooling water
Data Source
AI summary
A water cooling system for a battery includes: a cartridge combining a pair of battery cells; a base heat transfer plate having a first side being in surface contact with a side of the cartridge; a projective heat transfer plate protruding on a surface where the base heat transfer plate and the cartridge are in contact with each other; and a cooling channel being in surface contact with a second side of the base heat transfer plate and having a hole through a center for cooling water to flow.