Dual-Enclosure Cooling with Partitioned Airflow
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Solution Overview
Problem
Existing outdoor electronic devices, such as ventilators, face insufficient cooling due to the mixing of cooled and heated air, leading to inadequate temperature regulation, especially in hot environments.
Innovation Solution
An electronic device and projection apparatus design featuring a dual-enclosure system with a partitioned internal space and separate intake and discharge ports, where the first intake fan supplies more air into the first space than the second intake fan sucks into the second enclosure, preventing heated air from mixing with cooling air and enhancing cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single enclosure with one intake port and one discharge port is used, then the device structure is simple, but the cooling effect is insufficient due to air mixing
Solution Approach 1:
The internal space of the first enclosure is partitioned into a first space and a second space using a partitioner. The first intake port communicates with the first space, and the discharge port communicates with the second space, preventing mixing of intake and discharged air. This segmentation resolves the contradiction by improving cooling effectiveness without significantly increasing overall structural complexity.
Solution Approach 2:
Different regions of the enclosure are assigned different functions: the first space is dedicated to air intake and initial cooling, while the second space handles discharged air. This local differentiation ensures that cooling air maintains lower temperature throughout its path, improving overall cooling performance while keeping the structure manageable.
2Productivity
If the first intake fan sends more air into the first space than the second intake fan sucks into the second enclosure, then cooling efficiency is improved, but air pressure differential control becomes more complex
Solution Approach 1:
A pressure differential sensor detects the pressure difference between the first space and the second space, and a controller adjusts the rotation speeds of the first and second intake fans accordingly. This feedback mechanism maintains optimal air flow rates, ensuring the first fan sends more air into the first space than the second fan sucks into the second enclosure, thereby improving cooling efficiency while automating the control complexity.
3Ease of operation
If separate first and second intake fans are used, then air flow control is improved, but the device structure becomes more complex
Solution Approach 1:
Both the first intake fan and the second intake fan are controlled by a single controller that receives input from the pressure differential sensor. This unified control system allows both fans to serve multiple functions: the first fan primarily supplies air to the first space while also contributing to overall cooling, and the second fan manages air intake to the second enclosure. This multi-functionality reduces operational complexity despite having two fans.
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 provides improved cooling for electronic devices and projectors by maintaining a higher air pressure in the intake space, increasing airflow speed and preventing dust and foreign matter entry, thus enhancing cooling efficiency and maintaining optical part quality.
Implementation Method 1
a first intake fan that sends the air via the first intake port into the first space
Implementation Method 2
a second intake fan that sucks air into the electronic device main body via the second intake port
Implementation Method 3
a partitioner that partitions the internal space into a first space communicating with the first intake port and a second space communicating with the first discharge port
Implementation Method 4
The shutter opens and close in accordance with a difference between an air pressure of the second space and an air pressure of an exterior of the first discharge port
Data Source
AI summary
An electronic device includes an electronic device main body and an accommodation apparatus accommodating the electronic device main body. The accommodation apparatus includes a first enclosure forming an internal space and having a first intake port and a first discharge port, a partitioner partitioning the internal space into a first space and a second space, and a first intake fan sending the air into the first space. The electronic device main body includes a second enclosure having a second intake port and a second discharge port, and a second intake fan sucking air into the electronic device main body. The second intake port is disposed in the first space. The second discharge port is disposed in the second space. The amount of air sent by the first intake fan into the first space is greater than the amount of air sucked by the second intake fan into the second enclosure.