Battery Cooling via Internal Blower Air Circulation
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Solution Overview
Problem
Conventional battery cooling and heating systems for vehicles are inefficient due to the need for separate ducts and channels, which limit design flexibility and cooling effectiveness.
Innovation Solution
A battery system with airtight housing and internal blowers that circulate air through a closed path, using a heat exchange device with radiation fins to minimize air flow resistance and enhance cooling efficiency within a compact space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate ducts and channels are disposed for air flow path in conventional battery cooling systems, then the cooling and heating function can be achieved, but the design flexibility is limited and the space required increases
Solution Approach 1:
The patent merges the air flow path definition function from separate ducts and channels into the battery pack housing structure itself. The housing walls and internal partitions serve dual purposes as both structural components and flow path boundaries, eliminating the need for dedicated cooling ducts and channels.
Solution Approach 2:
The battery pack housing is designed to perform multiple functions simultaneously: it provides structural protection for battery cells, defines the air flow path for cooling, and serves as a thermal management component. This multi-functionality reduces overall system complexity and improves design flexibility.
2Temperature
If separate ducts and channels are disposed for air flow path in conventional battery cooling systems, then the cooling and heating function can be achieved, but the space required for cooling and heating increases
Solution Approach 1:
The cooling air flow path is merged with the battery pack housing structure, allowing the same space to serve both structural and thermal management functions. This integration significantly reduces the additional space that would be required for separate cooling ducts and channels.
Solution Approach 2:
The air flow path is designed to utilize the three-dimensional space within the battery pack housing efficiently, creating flow channels that traverse multiple dimensions rather than requiring additional external space for ductwork.
3Ease of operation
If radial fans are arranged with cooling air input and output perpendicular to battery cell traversal direction, then the flow path can be designed, but the cooling air flow becomes substantially long and cooling effect decreases
Solution Approach 1:
Instead of arranging fans to create perpendicular flow paths that traverse the full length of the battery pack, the patent inverts the approach by positioning fans to create flow paths that move cooling air directly across battery cell surfaces in a more compact manner, reducing the effective cooling air flow length.
Solution Approach 2:
The cooling air flow path is optimized to provide targeted cooling at specific locations where battery cells generate heat, rather than creating a uniform long-distance flow path. This local optimization ensures efficient heat removal without requiring excessively long air flow paths.
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 reduces the space required for cooling and heating, increases energy efficiency, and improves air cooling performance by maintaining air circulation within the airtight housing, eliminating the need for external air input and output.
Implementation Method 1
a blower configured to suction air toward a middle of the airtight housing and to discharge the suctioned air to a side of the airtight housing
Implementation Method 2
transfer the air to the battery for cooling the battery through air convection
Implementation Method 3
a plurality of blowers disposed on a side end of an interior of the airtight housing and the plurality of blowers configured to suction air
Implementation Method 4
using a heat exchange device with radiation fins to minimize air flow resistance and enhance cooling efficiency
Implementation Method 5
a heat exchange device disposed on the discharging flow path in the airtight housing
Data Source
AI summary
A battery system is disclosed, including: an airtight housing; a plurality of blowers disposed on a side end of an interior of the housing configured to suction air toward a middle of the airtight housing and discharge the suctioned air to the side of the airtight housing; a battery pack unit disposed inside the airtight housing to form a plurality of rows wherein an air passageway traverses through a front portion and a rear portion of each row and is disposed at a middle of each blower to form a suction flow path and a discharging flow path; and a heat exchange device disposed on the discharging flow path in the airtight housing.