Vehicle Battery Cooling Structure Exhaust Vent Design
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Solution Overview
Problem
Existing battery cooling structures for vehicles face challenges in efficiently discharging exhaust air while preventing foreign matter and water from entering the battery pack, especially when the exhaust vent is positioned at a low level.
Innovation Solution
A battery cooling structure that includes an air supplying device and an air exhausting device, with the exhaust vent positioned in a rearward space behind the rear seat, utilizing an exhaust air duct that discharges exhaust air upward and a discharge port offset in the vehicle width direction, covered by cloth or lattice to prevent contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the exhaust vent is arranged in a low position to keep the exhaust passage short, then space efficiency is improved and pressure loss is reduced, but foreign matter and water on the road can easily enter the battery pack
Solution Approach 1:
The exhaust air duct extends not only in the vehicle width direction but also in the vehicle longitudinal direction, creating a three-dimensional exhaust path that bypasses contaminated areas while maintaining efficiency
Solution Approach 2:
The exhaust air duct acts as an intermediary component that connects the battery pack to the exhaust vent, allowing the vent to be positioned optimally for both efficiency and contamination prevention
2Volume of moving object
If the exhaust vent is arranged in a low position, then space efficiency is improved, but the risk of foreign matter and water entering the battery pack increases
Solution Approach 1:
The exhaust air duct utilizes multiple spatial dimensions (width and longitudinal directions) to achieve an optimized path that reduces volume while preventing contamination
3Object-affected harmful factors
If the exhaust air duct extends in the vehicle width direction with an offset discharge port, then foreign matter entry is prevented, but the duct configuration becomes more complex
Solution Approach 1:
The exhaust air duct is designed as a segmented path with distinct sections: a first section extending in the vehicle width direction from the battery pack, and a second section extending in the vehicle longitudinal direction to the exhaust vent, allowing each segment to optimize for its specific function
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 inhibits foreign matter and water from entering the battery pack, maintains low pressure loss, and allows for efficient use of vehicle space by keeping the exhaust passage short, ensuring effective cooling while minimizing discomfort to occupants.
Implementation Method 1
After exhaust air discharged from the exhaust port of the exhaust air duct flows through the discharge duct in a direction parallel to the floor surface in the vehicle width direction, the exhaust air may be discharged upward into the rearward space via the discharge port and the exhaust vent
Implementation Method 2
a battery generates heat as it charges and discharges... The air supplying device is configured to send cooling air to the battery pack
Data Source
AI summary
The invention relates to a battery cooling structure for cooling a battery mounted in a vehicle. This battery cooling structure includes a battery pack (20) within which the battery is housed in an internal space; an air supplying device (26) that is configured to send cooling air to the battery pack (20); and an air exhausting device (30) is configured to discharge exhaust air from the battery pack (20). The battery pack (20) is arranged under a rear seat (10) of the vehicle. An exhaust vent (54) of the air exhausting device 30) is provided on a floor surface in a rearward space behind the rear seat (10) in the vehicle, and discharges the exhaust air from the battery pack (20) upward into the rearward space from the exhaust vent (54) provided in the floor surface.