Heat Dissipation Apparatus With Countercurrent And Cross-Flow Channels
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing plate heat exchangers have limited efficiency and cannot effectively manage the increasing heat produced by electronic devices, necessitating an improvement in heat dissipation technology.
Innovation Solution
A heat dissipation apparatus with multiple heat exchange sheets arranged in a specific configuration, featuring separate paths for countercurrent and cross-flow heat exchange, where the first fluid undergoes countercurrent heat exchange in one path and cross-flow heat exchange in another, with a guide channel to enhance heat transfer efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional plate heat exchanger is used, then the structure is simple and easy to manufacture, but the heat exchange efficiency is limited and cannot meet the increasing heat production of electronic devices
Solution Approach 1:
The heat exchange device is segmented into multiple independent channels (first channel with first fluid, second channel with second fluid) that are arranged in a specific spatial configuration. This segmentation allows each channel to perform specialized heat exchange functions (countercurrent and cross-flow) while maintaining overall system efficiency, directly addressing the limitation of conventional single-channel plate heat exchangers
Solution Approach 2:
The patent introduces a vertical dimension to the heat exchange structure by arranging heat exchange sheets in a stacked configuration with channels extending in multiple directions (horizontal and vertical). The first channel and second channel are positioned at different heights and orientations, creating a three-dimensional heat exchange network that increases surface area and improves efficiency without proportionally increasing footprint
2Productivity
If the heat exchange efficiency is improved by increasing the number of heat exchange sheets and channels, then the heat dissipation capability increases, but the device size and complexity increase
Solution Approach 1:
Multiple heat exchange sheets are nested in a stacked configuration, with channels formed between adjacent sheets. The first channel and second channel are interwoven through the stack, allowing heat exchange surfaces to be nested within a compact volume. This nesting approach enables high heat dissipation capability while minimizing the overall device size
Solution Approach 2:
The patent utilizes the vertical dimension by stacking heat exchange sheets and forming channels that extend both horizontally and vertically. This three-dimensional channel arrangement allows heat exchange surfaces to be packed more densely in space, achieving high heat dissipation capability without proportionally increasing the device footprint
3Productivity
If the heat exchange sheets are arranged closely to improve heat transfer, then the heat exchange efficiency increases, but the flow paths become restricted and fluid flow rates decrease
Solution Approach 1:
The patent creates channels that extend in multiple dimensions (both horizontally and vertically) through the stacked heat exchange sheets. This multi-dimensional channel configuration provides adequate flow cross-sections even when sheets are closely arranged, maintaining fluid flow rates while achieving high heat exchange efficiency through increased surface area contact
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 apparatus achieves improved heat exchange efficiency by maintaining a large temperature difference between fluids, allowing for effective heat dissipation and reducing noise and size while maintaining flow rates, thus enhancing product competitiveness.
Implementation Method 1
The heat exchange sheet transfers, by conduction, the heat to the other side of the heat exchange sheet
Implementation Method 2
the first fluid and the second fluid are used to transfer heat by flowing
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Embodiments of the present invention provide a heat dissipation apparatus (100). The heat dissipation apparatus includes multiple heat exchange sheets (1,2,3), a first path (10) and a second path (20) are formed between the multiple heat exchange sheets, and the first path includes a first countercurrent channel (101), a guide channel (102), and a first-outlet cross-flow channel (103); the second path includes a second countercurrent channel (201) and a second-inlet cross-flow channel (203). One part of a first fluid that enters the first path enters the first countercurrent channel and mainly performs countercurrent heat exchange with a second fluid that is in the second countercurrent channel, and the other part passes the guide channel and rapidly performs cross-flow heat exchange, so that heat exchange efficiency can be improved.