Battery Pack Cooling Assembly for Cell and BDU Heat Control
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Solution Overview
Problem
The use of separate temperature control systems for Battery Disconnect Units (BDU) and batteries in battery packs leads to wasted battery capacity, increased costs, and suboptimal space utilization due to redundant cooling strategies.
Innovation Solution
A unified cooling assembly and control system that dissipates heat for both the cell and the BDU, with a control system determining the charging mode and transmitting control instructions to activate cooling based on cell temperature, eliminating the need for separate cooling strategies for the cell and BDU.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two separate temperature control systems are used for BDU and battery respectively, then each component can be controlled independently, but battery capacity is wasted and costs increase
Solution Approach 1:
The patent merges the BDU cooling system and battery cooling system into a single integrated cooling system. The cooling assembly includes a cooling medium circulation system that can simultaneously cool both the BDU and battery cells. The control system integrates temperature monitoring and control logic for both components, allowing unified management of cooling operations to reduce energy consumption while maintaining effective temperature control for both BDU and battery.
2Reliability
If two separate temperature control systems are used for BDU and battery respectively, then each component can be controlled independently, but temperature control cost increases
Solution Approach 1:
The cooling assembly is designed as a multi-functional system that can perform cooling operations for both BDU and battery cells using the same cooling medium circulation infrastructure. The control system implements universal temperature monitoring and control logic that manages both components through integrated algorithms, reducing the need for separate control hardware and software for each component.
3Reliability
If two separate temperature control systems are used for BDU and battery respectively, then each component can be controlled independently, but space utilization rate of battery pack decreases
Solution Approach 1:
The patent merges the BDU cooling system and battery cooling system into a single integrated cooling system. The cooling assembly includes a cooling medium circulation system that can simultaneously cool both the BDU and battery cells. The control system integrates temperature monitoring and control logic for both components, allowing unified management of cooling operations to reduce energy consumption while maintaining effective temperature control for both BDU and battery.
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 approach reduces energy waste, lowers temperature control costs, and enhances space utilization in battery packs by integrating the cooling of both components under a single control strategy.
Implementation Method 1
a cooling assembly provided at a side portion of the cell and a side portion of the battery disconnect unit and configured for dissipating heat for the cell and the battery disconnect unit
Data Source
AI summary
The present application discloses a battery pack, a temperature control method, a battery management system, and a computer readable medium. The battery pack includes: at least one cell; a battery disconnect unit configured for controlling discharging of the cell and charging of the cell in a fast charging mode; a cooling assembly provided at a side portion of the cell and a side portion of the battery disconnect unit and configured for dissipating heat for the cell and the battery disconnect unit; and a control system electrically connected to the cooling assembly and the cell and configured for turning on the cooling assembly according to a temperature of the cell.