Staggered Power Supply Heat Dissipation via Segmented Airflow
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Solution Overview
Problem
Conventional power supply systems, such as Automatic Transfer Switch (ATS) systems, face inefficiencies in heat dissipation due to concentrated heat sources, which reduce the cooling capability of airflows and affect overall heat dissipation efficiency.
Innovation Solution
A power supply with a staggered configuration, where the frontend and backend power conversion units of each module are positioned in separate air passages within a housing, allowing air to flow through distinct paths and improving heat dissipation by preventing temperature rise and maintaining airflow cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If power supply modules are disposed in parallel with all heat generating components concentrated at the same side, then the structure is simplified and easier to manufacture, but the heat dissipation efficiency deteriorates significantly as airflow temperature rises after passing through the first backend power conversion unit
Solution Approach 1:
The patent divides the housing into two separate air passages (first air passage and second air passage) that are physically segmented and independent from each other. The first frontend and backend power conversion units are disposed in the first air passage, while the second frontend and backend power conversion units are disposed in the second air passage. This segmentation allows separate airflow paths for cooling different components, preventing the airflow from becoming overheated and maintaining heat dissipation efficiency.
Solution Approach 2:
The patent applies local quality by providing different airflow conditions to different regions of the power supply system. Each air passage is designed to provide dedicated cooling airflow to its respective power conversion units. The first air passage provides cool airflow to the first power conversion units, and the second air passage provides cool airflow to the second power conversion units, ensuring that each region receives appropriate cooling quality based on its specific heat generation characteristics.
2Device complexity
If the electric fan is disposed at the rear side and cooling airflow flows from backend to frontend, then the airflow path is simplified, but the cooling capability deteriorates significantly after the airflow passes through the backend power conversion unit and its temperature increases
Solution Approach 1:
The patent segments the airflow path into two independent air passages. The first air passage allows airflow to cool the first frontend and backend power conversion units, while the second air passage allows airflow to cool the second frontend and backend power conversion units. This segmentation ensures that the airflow in each passage does not become excessively heated, maintaining effective cooling capability throughout the system.
Solution Approach 2:
The patent transitions from a single-dimensional sequential cooling approach (where airflow passes through one component after another in a single path) to a two-dimensional parallel cooling approach (where two separate air passages operate simultaneously). This dimensional change allows independent airflow management for different power conversion units, preventing temperature accumulation in a single airflow path.
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 enhances heat dissipation efficiency by ensuring that active power conversion units are cooled separately, maintaining airflow effectiveness and improving the overall cooling performance of the power supply system.
Implementation Method 1
the electric fan 73 (not shown in FIG. 8) is disposed at the rear side of the first and the second backend power conversion units 712, 722, and the cooling airflow generated by the electric fan 73 flows from the backend to the frontend power conversion units
Data Source
AI summary
A power supply with a staggered configuration includes a housing having an accommodation space, a first power supply module, a second power supply module, and an electric fan which are disposed inside the accommodation space. The first power supply module includes a first frontend power conversion unit and a first backend power conversion unit which are disposed at separate airflow passages. When the power supply is in operation, the electric fan turns and drives the air to flow into the housing in such a way that one airflow passage is through the first frontend power conversion unit and another airflow passage is through the first backend power conversion unit. In this way, the heat dissipation efficiency is increased with two separated air flow passages respectively flowing through and cooling down the first frontend power conversion unit and the first backend power conversion unit.