Battery Cell Tray Airflow Inversion for Uniform Cooling
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Solution Overview
Problem
Existing battery cell charging and discharging apparatuses are ineffective in efficiently discharging heated air, leading to temperature deviations among battery cells due to the circulation of hot air within the tray.
Innovation Solution
The apparatus incorporates a tray with lower cooling fans that generate a rising airflow and upper cooling fans positioned above to discharge the heated air out, along with temperature sensors and a PCB for precise temperature control and air flow management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If cooling fans are installed above the tray to blow air downwards toward battery cells, then cooling effect is improved, but hot air circulates within the tray instead of being discharged
Solution Approach 1:
The patent inverts the conventional cooling fan arrangement by installing fans below the tray instead of above it. The lower cooling fans blow air upwards through the tray, allowing hot air to be discharged from the top of the tray rather than circulating within it. This inversion of the cooling airflow direction resolves the contradiction between achieving cooling effect and preventing hot air circulation.
Solution Approach 2:
The patent changes the vertical dimension of the airflow path by positioning cooling fans at the bottom of the tray rather than the top. This dimensional repositioning creates an upward airflow path that passes through the battery cells and exits at the top, transforming the cooling mechanism from top-down to bottom-up and enabling effective hot air discharge.
2Manufacturing precision
If multiple cooling fans are added to improve cooling coverage, then temperature uniformity is improved, but device complexity increases
Solution Approach 1:
The patent makes the lower cooling fans serve multiple functions: they provide cooling to battery cells, discharge hot air from the tray, and create uniform temperature distribution across all cells. By positioning fans at the bottom and blowing air upward through the entire tray structure, a single cooling system achieves what would otherwise require multiple separate cooling mechanisms.
Solution Approach 2:
The patent combines the cooling function and hot air discharge function into a single integrated system. The lower cooling fans simultaneously cool the battery cells and facilitate hot air evacuation from the tray, merging two functions that could be achieved separately into one unified approach, thereby reducing overall system complexity.
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 configuration effectively cools battery cells by raising and discharging heated air, minimizing temperature deviations and improving cooling efficiency among battery cells.
Implementation Method 1
a lower cooling fan disposed at the tray and configured to blow air toward the battery cell
Implementation Method 2
an upper cooling fan disposed above the tray and configured to discharge air to the outside in the opposite direction to the lower cooling fan
Data Source
AI summary
A battery cell charging and discharging apparatus includes a tray configured to support a plurality of battery cells thereon, a plurality of lower cooling fans disposed at the tray, a power jig comprising a terminal configured to supply power to the battery cells and the lower cooling fans, and upper cooling fans disposed above the tray. Temperature deviation between the battery cells is minimized.