Two-Phase Ribbed Heat Sink for Base Station Cooling
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Solution Overview
Problem
Existing wireless communication base stations face challenges in effectively dissipating heat due to the increasing heat generation from high-capacity and high-power components, with natural wind dissipation methods being insufficient.
Innovation Solution
A heat dissipation apparatus featuring an evaporator with a first cavity for vapor-liquid two-phase conversion and ribbed plates with interconnected channels, where the working medium vaporizes and liquefies, facilitating convection and radiation heat dissipation, and the ribbed plates are strengthened through fixed connections to enhance stability and reduce processing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If natural wind dissipation method is used, then device complexity is low, but heat dissipation efficiency is insufficient
Solution Approach 1:
The patent utilizes phase transition of the working medium between liquid and vapor states to achieve efficient heat dissipation. The evaporator heats the liquid working medium to vaporize it, and the condenser cools the vapor to condense it back to liquid, releasing heat in the process. This phase change mechanism enables high heat dissipation efficiency without requiring complex active cooling systems.
Solution Approach 2:
The patent employs a closed-loop hydraulic system with working medium circulating through evaporator, condenser, and expansion valve. The fluid dynamics and pressure differences drive the phase change and heat transfer processes, enabling passive heat dissipation without external power consumption while maintaining high efficiency.
2Area of stationary object
If ribbed plate structure is used for heat dissipation, then heat dissipation surface area increases, but structural strength decreases
Solution Approach 1:
The ribbed plate is divided into multiple independent ribs rather than a single solid structure. This segmentation increases the surface area for heat dissipation while each individual rib maintains sufficient strength. The ribs are arranged to optimize both heat transfer surface area and structural load-bearing capacity.
Solution Approach 2:
The ribbed plate structure extends into the third dimension with vertically arranged ribs, transforming a flat surface into a three-dimensional heat dissipation structure. This dimensional change significantly increases the heat dissipation surface area while the rib thickness and spacing are optimized to maintain structural strength.
3Productivity
If complex heat dissipation structure is designed, then heat dissipation efficiency improves, but manufacturing cost increases
Solution Approach 1:
The ribbed plate serves multiple functions simultaneously: it acts as the condenser surface for heat dissipation, provides structural support, and forms the channels for working medium flow. This multi-functionality reduces the need for separate components, simplifying manufacturing while maintaining high heat dissipation efficiency.
Solution Approach 2:
The patent merges the condenser function with the ribbed plate structure, combining heat dissipation and structural support into a single integrated component. This consolidation reduces the total number of parts, simplifies assembly, and lowers manufacturing costs while achieving effective heat dissipation.
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 efficiently dissipates heat from high-capacity components, ensuring stable operation of the base station by leveraging vaporization and liquefaction processes while maintaining structural integrity and reducing manufacturing costs.
Implementation Method 1
a liquid phase working medium located in the first cavity is heated and vaporizes
Implementation Method 2
the first cavity is configured to accommodate a working medium for vapor-liquid two-phase conversion
Implementation Method 3
the working medium entering the second cavity liquefies
Implementation Method 4
an outer surface of the ribbed plate may perform convection and radiation heat dissipation with external air
Implementation Method 5
an outer surface of the ribbed plate may perform convection and radiation heat dissipation with external air
Implementation Method 6
enabling two-phase heat dissipation
Data Source
Figure 1a
Figure 1b
Figure 2a
AI summary
A heat dissipation apparatus, a heat dissipation apparatus preparation method, and a wireless communication base station are provided. The heat dissipation apparatus includes an evaporator (11) and a plurality of ribbed plates (12). The evaporator (11) has a first cavity, and the first cavity is configured to accommodate a working medium for vapor-liquid two-phase conversion. The ribbed plate (12) includes a first side plate (121) and a second side plate (122), a side that is of the first side plate (121) and that faces the second side plate (122) has a plurality of first protruding parts (1210), a side that is of the second side plate (122) and that faces the first side plate (121) has a plurality of second protruding parts (1220), and each first protruding part (1210) is fixedly connected to one corresponding second protruding part (1220), so that a second cavity between the first side plate (121) and the second side plate (122) is divided into channels that are connected to the first cavity. The heat dissipation apparatus can be used to effectively dissipate heat for the base station.