Vehicle Battery Pack Cooling Jacket for Charging-Focused Thermal Control
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Solution Overview
Problem
Existing battery pack cooling systems for eco-friendly vehicles are complex and inefficient, as they require separate cooling devices for batteries and power conversion modules, leading to suboptimal battery cooling during charging, which affects charging speed and stability.
Innovation Solution
A battery pack design that incorporates a first cooling jacket in close contact with both the battery and the power conversion module, with a second cooling jacket for the battery modules, allowing differential control of cooling performance through independently adjustable flow rates of the cooling medium.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate cooling devices are installed for battery pack and power conversion module, then cooling coverage is comprehensive, but device complexity increases and cooling focus on battery is insufficient
Solution Approach 1:
The patent merges the cooling functions for the battery pack and power conversion module into a single integrated cooling device. The cooling device includes a cooling medium flow path that can simultaneously cool both the battery pack and power conversion module, eliminating the need for separate cooling systems while maintaining comprehensive cooling coverage.
Solution Approach 2:
The cooling device incorporates dynamic flow rate control capabilities, allowing the cooling medium flow rate to be adjusted independently for different cooling channels. This enables the system to dynamically shift cooling focus between the battery pack and power conversion module based on real-time thermal requirements, particularly prioritizing battery cooling during charging operations.
2Reliability
If independent cooling devices are used for battery and power conversion module, then each component is cooled adequately, but charging speed and stability are compromised due to insufficient battery cooling focus
Solution Approach 1:
The cooling device incorporates dynamic flow rate control capabilities, allowing the cooling medium flow rate to be adjusted independently for different cooling channels. This enables the system to dynamically shift cooling focus between the battery pack and power conversion module based on real-time thermal requirements, particularly prioritizing battery cooling during charging operations.
Solution Approach 2:
The cooling device provides differentiated cooling to different components by adjusting cooling medium flow rates independently for the battery pack and power conversion module. This local quality control ensures that the battery receives enhanced cooling focus during charging operations, while the power conversion module receives appropriate cooling when needed.
3Reliability
If separate cooling devices are installed for battery pack and power conversion module, then cooling capability is sufficient, but manufacturing costs increase
Solution Approach 1:
The patent merges the cooling functions for the battery pack and power conversion module into a single integrated cooling device. The cooling device includes a cooling medium flow path that can simultaneously cool both the battery pack and power conversion module, eliminating the need for separate cooling systems while maintaining comprehensive cooling coverage.
Solution Approach 2:
The cooling device is designed as a universal system that can cool multiple components (battery pack and power conversion module) through a single integrated structure. The device includes adjustable flow paths that allow it to adapt to different cooling requirements of various components, providing multi-functional cooling capability while reducing overall system cost.
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 design simplifies the cooling structure, focuses cooling on the battery during charging, thereby enhancing charging speed and stability while reducing costs and complexity.
Implementation Method 1
a first cooling jacket having a flow path formed therein through which a cooling medium flows, wherein each of the plurality of battery modules includes a battery; and a power conversion module converting power of the battery, wherein the power conversion module is in close contact with one surface of the first cooling jacket, and the battery is in close contact with the other surface of the first cooling jacket
Implementation Method 2
a flow path formed therein through which a cooling medium flows
Data Source
AI summary
A battery pack for a vehicle includes a plurality of battery modules; and a first cooling jacket having a flow path formed therein through which a cooling medium flows, wherein each of the plurality of battery modules includes a battery; and a power conversion module converting power of the battery, wherein the power conversion module is in close contact with one surface of the first cooling jacket, and the battery is in close contact with the other surface of the first cooling jacket.