TEC Cooling Device Internal Air Circulation
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Solution Overview
Problem
Existing cooling devices with a single set of air inlets and exhaust ports on the same plane suffer from low cooling efficiency and inability to achieve internal air circulation, especially in high-temperature environments.
Innovation Solution
The cooling device incorporates a housing with an air intake chamber and an air outlet chamber connected by channels, featuring a natural air intake port, a heat exhaust port, a cold air outlet, and a cold air inlet. This design allows for internal cooling circulation by mixing natural and cool air before it reaches the TEC cooling module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single set of air inlets and exhaust ports is used on the same plane, then the device structure is simple, but the cooling efficiency is low and internal air circulation cannot be achieved
Solution Approach 1:
The air intake chamber is segmented into multiple independent air inlet ports (first air inlet port and second air inlet port) positioned at different locations. The air outlet chamber is segmented into multiple independent air outlet ports (first air outlet port and second air outlet port). This segmentation allows independent control of air flow paths, enables internal air circulation, and improves cooling efficiency without requiring overly complex structural modifications.
Solution Approach 2:
The air inlet and air outlet ports are distributed across different spatial dimensions and planes within the housing. The first air inlet port and second air inlet port are positioned at different locations on the housing, with the second air inlet port located at a position different from the first. Similarly, the first air outlet port and second air outlet port are positioned at different locations. This spatial distribution creates three-dimensional air flow paths that enable internal circulation and improve cooling efficiency.
2Temperature
If air is drawn from outside in high temperature environment, then the device can operate continuously, but the cooling efficiency decreases and colder air cannot be produced
Solution Approach 1:
The system creates a feedback loop where cooled air is recirculated back into the air intake chamber through the second air inlet port. The second air inlet port is configured to communicate with the air intake chamber, allowing cooled air to be drawn back in. This feedback mechanism enables the system to continuously cool air and maintain lower temperatures, improving cooling efficiency even in high ambient temperature environments.
Solution Approach 2:
Air is pre-cooled by the TEC cooling module before being supplied to the clothing. The first air outlet port supplies pre-cooled air directly to the clothing, while the second air outlet port supplies air that has been cooled in the air outlet chamber. This preliminary cooling action ensures that air is cooled before use, maintaining effective cooling performance in high temperature environments.
3Ease of operation
If the cold air inlet is positioned to communicate with the air intake chamber, then internal air circulation is achieved, but the device structure becomes more complex
Solution Approach 1:
The air intake chamber serves multiple functions: it acts as a mixing chamber for hot and cold air, a cooling chamber where air is cooled by the TEC module, and a circulation chamber where cooled air is recycled. The second air inlet port communicates with the air intake chamber, enabling the same chamber to handle both fresh air intake and cooled air recirculation. This multi-functionality achieves internal air circulation without requiring separate dedicated chambers, reducing structural complexity.
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 solution enhances cooling efficiency and reduces energy consumption by achieving internal air circulation, providing colder air and improving user comfort and market competitiveness.
Implementation Method 1
A Thermo Electric Cooler (TEC) is made using the Peltier effect of semiconductor materials. The Peltier effect refers to the phenomenon where one end absorbs heat and the other end releases heat when a direct current passes through a thermocouple made of two types of semiconductor materials.
Implementation Method 2
When the fan is working, it draws air into the housing through the air inlet and blows it towards the first and second thermal conductors.
Implementation Method 3
first and second thermal conductors respectively provided on the cold and hot surfaces of the TEC cooling chip
Data Source
AI summary
A cooling device and a cooling garment using the cooling device. The cooling device comprises a housing, a TEC cooling module, and a fan. The housing is provided with a connected air intake chamber and an air outlet chamber, with the fan arranged in the air intake chamber. The TEC cooling module is installed in the air outlet chamber, forming a cold air channel and a hot air channel within the air intake chamber. The two sides of the lower end surface of the housing are respectively provided with a natural air intake port and a heat exhaust port. The natural air intake port communicates with the air intake chamber and corresponds to the fan, while the heat exhaust port communicates with the hot air channel. One side of the upper end surface of the housing is provided with a cold air outlet that communicates with the cold air channel, and the other side of the upper end surface of the housing is provided with a cold air inlet that communicates with the air intake chamber. The cold air inlet corresponds to the fan, making the air intake chamber a mixed chamber for hot and cold air.