Variable-Fin-Pitch Heat Sink Plate for Inverter Cooling Uniformity
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Solution Overview
Problem
Current water-cooling radiators are inadequate for effectively dissipating heat from automotive power chips, which operate at increasingly faster speeds.
Innovation Solution
A vehicle water-cooling heat sink plate with fin sets having different fin pitch distances, where the heat-dissipating plate body is divided into distinct areas with fin sets of varying fin pitches and orientations to optimize heat dissipation and fluid flow, minimizing pressure drop and ensuring temperature uniformity across traction inverter power component sets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If uniform fin pitch is used across all heat-dissipating areas, then manufacturing is simple, but heat dissipation efficiency is insufficient for high-power automotive chips
Solution Approach 1:
The patent applies local quality by dividing the heat dissipation plate into multiple areas with different fin pitch distances. The first area has a first fin pitch distance, the second area has a second fin pitch distance different from the first, and the third area has a third fin pitch distance. This allows each region to be optimized for its specific heat dissipation requirements, improving overall heat dissipation efficiency while maintaining manufacturing feasibility through standardized fin structures.
2Productivity
If fin pitch distance is reduced to increase heat dissipation area, then heat dissipation efficiency improves, but fluid pressure drop increases
Solution Approach 1:
The patent implements local quality by assigning different fin pitch distances to different areas based on their thermal loads and flow characteristics. The first area has a first fin pitch distance optimized for its conditions, the second area has a second fin pitch distance, and the third area has a third fin pitch distance. This spatial variation allows the system to achieve high heat dissipation efficiency in critical areas while maintaining adequate fluid flow and pressure characteristics in other regions.
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 solution effectively enhances heat dissipation and cooling performance, reducing fluid pressure drop and energy consumption while maintaining temperature uniformity across the traction inverter power component sets, thereby addressing the inadequacies of existing water-cooling radiators for automotive applications.
Implementation Method 1
the second heat-dissipating surface being used for contacting a cooling fluid
Implementation Method 2
a heat-dissipating plate body having a first heat-dissipating surface and a second heat-dissipating surface opposite to each other, the first heat-dissipating surface being used for contacting a first, a second and a third traction inverter power component set
Implementation Method 3
a first fin set, a second fin set and a third fin set, the first fin set being located on the first heat-dissipating area, the second fin set being located on the second heat-dissipating area, and the third fin set being located on the third heat-dissipating area
Data Source
AI summary
A vehicle water-cooling heat sink plate having fin sets with different fin pitch distances is provided. The vehicle water-cooling heat sink plate includes a heat-dissipating plate body and three fin sets. The heat-dissipating plate body has a first heat-dissipating surface and a second heat-dissipating surface that are opposite to each other, the first heat-dissipating surface is used for contacting three traction inverter power component sets, and the second heat-dissipating surface is used for contacting a cooling fluid. The second heat-dissipating surface of the heat-dissipating plate body along a flow direction of the cooling fluid is divided into three heat-dissipating areas which are spaced apart from each other and have the same size, and the three heat-dissipating areas respectively correspond to three projection areas that are respectively generated by the three traction inverter power component sets.