Battery Module Temperature Control Using Shutter Blades
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In eco-friendly vehicles, battery modules face performance degradation due to uneven air flow rates to battery cells, leading to temperature inconsistencies and reduced output, as existing systems lack effective control over air flow to maintain uniform temperatures across all cells.
Innovation Solution
A device and method that utilize temperature sensors and shutter blades to control air flow rates to each battery cell based on individual and average temperatures, ensuring uniform temperature distribution by adjusting the open angles of shutter blades and rotational speed of the blowing fan, with heated air from the engine used to raise temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If air is supplied to battery cells without individual flow rate control, then the system structure is simple, but temperature uniformity across battery cells deteriorates
Solution Approach 1:
The air supply system is segmented into individual controllable channels for each battery cell. Shutter blades are installed at each cell's air inlet, allowing independent flow rate control. This segmentation enables precise temperature management for each cell while maintaining overall system functionality.
Solution Approach 2:
The shutter blades are designed to be dynamically adjustable based on real-time temperature feedback from each battery cell. The control system varies the open angle of each shutter blade according to the specific temperature needs of individual cells, creating a dynamic response that maintains temperature uniformity across the battery module.
2Stability of the object's composition
If individual air flow control is implemented for each battery cell, then temperature uniformity is improved, but device complexity increases
Solution Approach 1:
A single control system performs multiple functions: it monitors temperature of all battery cells, calculates required air flow rates for each cell, and controls all shutter blades. This multi-functionality reduces the need for separate control mechanisms for each cell, managing complexity while achieving precise individual control.
Solution Approach 2:
Temperature sensors on each battery cell provide continuous feedback to the control system. Based on this feedback, the control system adjusts the shutter blade positions to maintain optimal temperature uniformity. This closed-loop feedback mechanism ensures temperature control accuracy while using a unified control architecture.
3Temperature
If air flow rate is increased to raise battery cell temperature, then heating efficiency is improved, but energy consumption increases
Solution Approach 1:
Air flow rate is optimized locally for each battery cell based on its specific temperature requirements. Cells that need more heating receive higher air flow through fully open shutter blades, while cells接近 target temperature receive reduced air flow through partially closed blades. This local optimization prevents unnecessary energy consumption in cells that don't require heating.
Solution Approach 2:
The system dynamically changes the air flow parameter for each battery cell based on temperature conditions. By adjusting the shutter blade open angle, the system varies the air flow rate to match the heating needs of each cell, achieving efficient temperature control while minimizing energy consumption from the air supply fan.
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 solution enhances the output performance of battery modules by maintaining uniform temperatures across all cells, preventing performance degradation and optimizing energy supply by varying air flow rates according to temperature differences.
Implementation Method 1
blowing air introduced by a blowing fan to the battery cells to raise a temperature of each the battery cell
Implementation Method 2
Air introduced to the battery cell through the blowing fan may be heated by heat generated from an engine of a hybrid vehicle
Data Source
AI summary
A device for raising a temperature of a battery module for an eco-friendly vehicle, the battery module including a plurality of battery cells disposed at intervals in a housing thereof, the device blowing air introduced by a blowing fan to the battery cells to raise a temperature of each the battery cell, the device may include a temperature sensor provided on each battery cell for measuring a temperature of corresponding battery cell, a flow passage for guiding air flowed from a blowing fan to each battery cell, and an air flow rate control means provided at a region connecting the flow passage and each battery cell to control the flow rate of air introduced to each battery cell.