EV Battery Air Cooling Layout With Split Evaporators and Blowers
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Solution Overview
Problem
Conventional cooling systems for electric vehicles are inadequate for cooling additional components beyond engine components, as they typically rely on liquid cooling for engines and air cooling for operators, failing to address the cooling needs of other components effectively.
Innovation Solution
An air cooling system comprising a compressor, condenser, evaporator coils, and multiple blowers to efficiently direct cooled air through battery housings and additional components, with specific volume distributions and airflow pathways to ensure effective cooling of battery modules and electronic components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional liquid cooling is used for engine components, then engine cooling is effective, but cooling of additional components (battery modules, electronic components) cannot be provided
Solution Approach 1:
The cooling system is segmented into multiple independent evaporator coils (first evaporator coil for first battery housing, second evaporator coil for second battery housing) and multiple blowers (first blower, second blower, third blower). Each segment can independently cool specific components, allowing the system to provide targeted cooling for battery modules, electronic components, and other additional components while maintaining reliability for each cooled component.
2Reliability
If a single cooling system is used for all components, then system complexity is reduced, but cooling effectiveness for different components with different cooling needs cannot be optimized
Solution Approach 1:
Different parts of the cooling system are configured with different properties to match local cooling needs. The first evaporator coil and first blower are configured to provide higher cooling capacity (greater cool air volume) for the first battery housing with larger volume and more battery modules. The second evaporator coil and second blower are configured for the second battery housing with smaller volume. This local differentiation optimizes cooling effectiveness for each component while managing overall system complexity through modular design.
3Reliability
If cool air volume is evenly distributed to all battery housings, then system simplicity is maintained, but cooling effectiveness for housings with different volumes cannot be optimized
Solution Approach 1:
The system changes the parameter of cool air volume distribution to match the different volumes of battery housings. The first blower directs a first portion of cool air with a greater volume to the first battery housing, while the third blower directs a second portion of cool air with a smaller volume to the second battery housing. This parameter adjustment optimizes cooling effectiveness for each housing size without requiring complex active control systems, as the volume distribution is determined by the modular configuration of evaporator coils and blowers.
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
The system provides efficient cooling of battery modules and electronic components, optimizing airflow distribution to maintain optimal operating temperatures and reduce energy consumption.
Implementation Method 1
a first evaporator coil that includes a first side at which warm air is received and a second side at which cool air exits after having passed through the first evaporator coil
Implementation Method 2
a compressor
Implementation Method 3
a condenser
Implementation Method 4
a first blower to direct a first portion of the cool air from the second side of the first evaporator coil into the first battery housing
Data Source
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AI summary
A vehicle (10) includes a first battery housing (600) to house a plurality of first battery modules (61), a second battery housing (70) to house a plurality of second battery modules (71), and an air cooling system to cool the plurality of first battery modules and the plurality of second battery modules. The air cooling system includes a compressor (362), a condenser (531), a first evaporator coil (3551L) that includes a first side at which warm air is received and a second side at which cool air exits after having passed through the first evaporator coil, and a second evaporator coil (3551R) that includes a first side at which warm air is received and a second side at which cool air exits after having passed through the second evaporator coil.