Power Converter Partitioning for Heat Interference Suppression
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Solution Overview
Problem
Existing power conversion apparatuses face challenges in improving cooling performance for both power converters due to heat interference through the coolant, which limits heat transfer efficiency.
Innovation Solution
The power conversion apparatus features a partitioning portion that positions the heat-generating components of the first and second power converters such that they do not overlap in the perpendicular direction to the coolant flow, allowing for enhanced heat transfer to the coolant, thereby improving cooling performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heat-generating components of both power converters are joined to the partitioning portion, then cooling performance of both converters can be improved, but heat interference between the two converters occurs through the coolant
Solution Approach 1:
The patent positions the first heat-generating component and second heat-generating component at different locations on the partitioning portion such that they do not overlap when viewed from the direction perpendicular to the coolant flow direction. This spatial arrangement in a different dimension (perpendicular to flow) allows both components to be cooled effectively while preventing heat interference through the coolant flow path.
2Object-generated harmful factors
If heat-generating components are positioned to avoid overlap perpendicular to coolant flow, then heat interference is suppressed, but space utilization in the housing becomes more complex
Solution Approach 1:
The patent applies local quality by designing the partitioning portion with specific local features including a first heat-releasing fin and a second heat-releasing fin that extend in the coolant flow direction. These localized structural variations allow heat from both components to be effectively released to the coolant while maintaining a relatively simple overall housing structure.
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 suppresses heat interference and enhances cooling performance by ensuring that heat from both converters is transferred to the coolant without being limited, leading to improved cooling efficiency for both power converters.
Implementation Method 1
heat generated by the first heat-generating component is transmitted to the coolant flowing through the coolant flow passage
Implementation Method 2
heat generated by the heat-generating component is transferred to a coolant through the base plate and the partitioning portion
Data Source
AI summary
A power conversion apparatus includes a first power converter, second power converter, a case, and partitioning portion. The first power converter performs power conversion. The second power converter performs power conversion. The case houses the first power converter and the second power converter. The partitioning portion partitions the first power converter and the second power converter housed in the case, and forms a coolant flow passage through which a coolant flows. The first power converter includes a first heat-generating component. The second power converter includes a second heat-generating component. The first heat-generating component and the second heat-generating component are each joined to the partitioning portion at a position at which the first heat-generating component and the second heat-generating component do not overlap each other in a perpendicular direction perpendicular to a coolant flow direction of the coolant flow passage.