Electric Vehicle Power Drive Cooling via Baffle Partitioned Air Passages
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Solution Overview
Problem
Existing electrically driven vehicles face challenges in efficiently cooling power drive units due to limited space and battery capacity, which affects the thermal management and overall performance.
Innovation Solution
The design incorporates a baffle member with a partition wall that houses heat sinks with parallel cooling fins, air guide passages, and cooling fans to circulate air effectively between power drive units, ensuring secure and efficient cooling of the heat sinks while maintaining compactness and space efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the vehicle layout is optimized for battery placement, then battery capacity is maximized, but space for cooling power drive units becomes limited
Solution Approach 1:
The frame members serve multiple functions: they provide structural support for the vehicle and simultaneously act as heat sinks with integrated cooling passages for power drive units. This multi-functionality eliminates the need for separate cooling structures, maximizing space utilization without compromising battery capacity.
Solution Approach 2:
The cooling system for power drive units is merged with the vehicle's structural frame members. The frame members contain internal passages that serve as cooling channels, combining the structural and thermal management functions into a single integrated component.
2Volume of moving object
If compact arrangement of power drive units is implemented, then space efficiency is improved, but cooling effectiveness deteriorates
Solution Approach 1:
The cooling system utilizes vertical and three-dimensional cooling paths within and around the compact power drive units. Cooling passages extend vertically through frame members and laterally along the units, ensuring effective heat removal from all surfaces including top, bottom, and side surfaces of the compactly arranged units.
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 ensures effective cooling of power drive units, enhances thermal management, and allows for compact arrangement of components, improving the vehicle's performance and efficiency.
Implementation Method 1
The first heat sink has a plurality of first cooling fins extending in a second direction orthogonal to the first direction and is attached to a first lateral surface of the first power drive device
Implementation Method 2
Cooling air is to flow through the first air guide passage in the second direction
Implementation Method 3
The first heat sink has a plurality of first cooling fins extending in a second direction orthogonal to the first direction
Data Source
AI summary
An electrically driven vehicle includes a first electric motor, a second electric motor, a first power drive device, a second power drive device, a first heat sink, a second heat sink, a baffle member, a first air guide passage, and a second air guide passage. The baffle member closes a space defined between the first power drive device and the second power drive device at a first end and a second end of the space. The first air guide passage houses the first heat sink. The first air guide passage is provided between a first partition wall and the first power drive device. The second air guide passage houses the second heat sink. The second air guide passage is provided between the first partition wall and the second power drive device.