Cooling device for personal cooling
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Solution Overview
Problem
Conventional air conditioning systems for personal cooling are bulky, heavy, and require large components and refrigerant circulation systems, which are not wearable and can cause environmental pollution if a leak occurs.
Innovation Solution
A portable cooling device utilizing a thermoelectric heat pump based on the Peltier effect, combined with a fan and a housing, that extracts heat from a heat source and dissipates it using a power source, eliminating the need for bulky components and refrigerant circulation systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional air conditioning systems are used for personal cooling, then cooling effectiveness is achieved, but the device becomes bulky and heavy with large components
Solution Approach 1:
The patent replaces the conventional mechanical compression-based refrigeration system with a thermoelectric heat pump that uses solid-state Peltier effect. This substitution eliminates bulky mechanical components like compressors and condensors, achieving personal cooling with a lightweight, wearable device while maintaining effective heat transfer capability
Solution Approach 2:
The invention changes the fundamental operating parameters from high-pressure mechanical refrigeration to low-voltage electrical-driven thermoelectric cooling. By applying electric current through thermoelectric modules, the system achieves heat pumping effect without mechanical compression, dramatically reducing device weight and size
2Temperature
If conventional air conditioning systems are used for personal cooling, then cooling function is provided, but the device requires large components and fixed pipe systems
Solution Approach 1:
The patent replaces the complex mechanical refrigeration system with a solid-state thermoelectric heat pump. This eliminates the need for compressors, expansion valves, and fixed pipe networks, simplifying the system architecture to essential components only while maintaining effective cooling function
Solution Approach 2:
The invention extracts and removes unnecessary complex components from the conventional AC system, keeping only the essential heat transfer and dissipation elements. By eliminating the refrigerant circulation system with fixed pipes, the device achieves simplified structure suitable for personal wear
3Temperature
If conventional air conditioning systems are used, then cooling is achieved, but refrigerant leakage causes environmental pollution
Solution Approach 1:
The patent replaces the refrigerant-based cooling system with a thermoelectric heat pump that uses electrical energy to drive heat transfer. This substitution completely eliminates refrigerant usage, preventing any possibility of refrigerant leakage and environmental pollution while maintaining effective cooling
Solution Approach 2:
The invention converts electrical energy directly into heat pumping action through the Peltier effect, transforming a potentially harmful refrigerant system into an environmentally benign solid-state system. The electrical-driven approach eliminates the harmful aspect of refrigerant leakage entirely
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 device is wearable, reduces environmental impact, and provides effective personal cooling by focusing on heat transfer using a solid-state active heat pump, allowing for efficient cooling without the need for large-scale components, thus enhancing mobility and reducing production and maintenance costs.
Implementation Method 1
a thermoelectric heat pump based on the Peltier effect, combined with a fan and a housing, that extracts heat from a heat source and dissipates it using a power source
Data Source
AI summary
A cooling device (10) for personal cooling is provided. The cooling device (10) includes a thermoelectric heat pump (12) having a first side (14) and a second side (16), a fan (18) and a housing (20) having a plurality of openings (22). The thermoelectric heat pump (12) is operable to extract heat from a heat source via the first side (14) and transfer the heat from the first side (14) to the second side (16) on application of an electric current from a power source through the thermoelectric heat pump (12). The fan (18) is operable to dissipate the heat extracted by the thermoelectric heat pump (12). The thermoelectric heat pump (12) and the fan (18) are received in the housing (20).