Stacked Core Cooling Device Asymmetry
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Solution Overview
Problem
Existing cooling devices with stacked cores experience disrupted coolant flow and non-homogeneous temperature distribution due to the positioning of linking portions in the lamination direction of punched plates, limiting their cooling performance.
Innovation Solution
A cooling device with a stacked core composed of punched plates featuring linear portions in triangle waveforms and spaced-apart linking portions that link amplitude peak portions, improving agitation performance by alternating plate disposition and brazing for enhanced heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If linking portions are disposed at the same positions at alternate punched plates, then temperature distribution homogeneity is improved, but coolant flow disruption occurs
Solution Approach 1:
The patent applies asymmetry by positioning linking portions at different locations on alternating punched plates. Specifically, on odd-numbered plates, linking portions are at one position while on even-numbered plates, they are shifted to a different position. This asymmetric arrangement prevents the formation of continuous straight flow paths that would cause flow disruption, while still maintaining temperature distribution homogeneity through the staggered configuration.
Solution Approach 2:
The patent introduces dimensional variation by arranging linking portions not only in the lamination direction but also in the planar direction across alternating plates. This multi-dimensional staggering transforms the flow path from a potentially linear disruptive pattern into a three-dimensionally distributed pattern that enhances mixing without creating flow bottlenecks.
2Ease of manufacture
If linear portions extend in linear shapes, then manufacturing is simplified, but cooling performance is limited
Solution Approach 1:
The patent replaces linear straight-line portions with curved or bent portions that extend in arc shapes rather than straight lines. This curvature modification enhances coolant flow agitation and mixing performance by creating more complex flow patterns, while the overall structure remains manufacturable using standard bending and forming processes for metal plates.
3Productivity
If punched plates are stacked with linking portions spaced apart, then flow path complexity increases, but component count increases
Solution Approach 1:
The patent merges multiple functions into the punched plates themselves. The plates simultaneously serve as structural components, flow distribution elements, and agitation devices through their curved linear portions and strategically positioned linking portions. This integration achieves enhanced cooling performance without adding separate agitation components or increasing the overall component count beyond the necessary stacked plate 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
The cooling device enhances coolant agitation and temperature distribution homogeneity, improving cooling performance while reducing component count and manufacturing costs through the use of uniformly shaped punched plates.
Implementation Method 1
the linear portions being superposed over one another, and the linking portions of the superposed punched plates being disposed spaced apart in the extension direction, wherein each of the linking portions links an amplitude peak portion of one of the linear portions with a general portion of another of the linear portions
Data Source
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AI summary
A cooling device includes: a case equipped with a supply port and a discharge port, the supply port supplying a coolant to an interior of the case, and the discharge port discharging the coolant from the interior of the case to an exterior of the case; and a stacked core disposed in the case, the stacked core comprising a plurality of punched plates, each with the same shape, and each punched plate including: a plurality of linear portions that extend in waveform shapes in a flow direction of the coolant and that are spaced apart in an amplitude direction of the waveforms, and linking portions that are spaced apart in an extension direction of the linear portions and that link the linear portions to one another in the amplitude direction, the punched plates being alternately disposed front-to-back and the linear portions being superposed over one another, and the linking portions of the superposed punched plates being disposed spaced apart in the extension direction.