Projector having refrigerant generator
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Solution Overview
Problem
Projectors face challenges in achieving high cooling performance while maintaining a compact size and low noise levels, as existing air-cooling and liquid-cooling methods often require larger sizes and generate noise due to increased blower activity.
Innovation Solution
A projector design incorporating a refrigerant generator that transforms air into a gas to cool the projector, using a moisture absorbing/discharging member, heat exchanger, and blowers to efficiently generate and deliver refrigerant, reducing the need for separate air blowers and storage tanks, and enhancing surface contact for improved cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If air-cooling or liquid-cooling methods are used to improve cooling performance, then cooling performance is improved, but the size of the projector increases
Solution Approach 1:
The patent utilizes the phase transition of water from liquid to vapor (evaporation) as a cooling mechanism. The refrigerant generator converts liquid water into water vapor, which then condenses on the cooling target surface, absorbing heat in the process. This phase change approach provides efficient cooling without requiring large-sized air blowers or liquid cooling systems, thus resolving the contradiction between cooling performance and projector size.
Solution Approach 2:
The patent replaces traditional mechanical cooling systems (air blowers, pumps) with a chemical/physical process-based cooling system. Instead of using mechanical convection to remove heat, the system uses evaporative cooling and condensation processes to achieve the same cooling effect with minimal mechanical components, thereby reducing projector size while maintaining cooling performance.
2Temperature
If air-cooling is used to improve cooling performance, then cooling performance is improved, but noise increases due to increased blower activity
Solution Approach 1:
The patent replaces the mechanical air blower system with an evaporative cooling system that uses minimal or no mechanical agitation. The cooling is achieved through the phase change of water and natural condensation processes, eliminating the need for high-speed blowers that generate noise, thus resolving the contradiction between cooling performance and noise levels.
Solution Approach 2:
The cooling system operates largely autonomously using the natural properties of water phase changes. The refrigerant generator produces water vapor, which naturally rises and condenses on the cooling target, creating a self-sustaining cooling cycle that requires minimal mechanical intervention and produces minimal noise.
3Temperature
If the surface area of refrigerant contact with cooling target is increased to improve cooling performance, then cooling performance is improved, but the complexity of the system increases
Solution Approach 1:
The patent uses the condensation phase transition of water vapor directly on the cooling target surface to maximize heat transfer area. The water vapor condenses into droplets across the entire surface of the cooling target, providing extensive contact area without requiring complex heat exchanger structures, thus improving cooling performance while keeping the system simple.
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 solution provides excellent cooling performance, reduces projector size, and minimizes noise by utilizing the transformation of refrigerant into a gas for active heat draw, eliminating the need for separate air blowers and storage tanks, and increasing surface contact for enhanced cooling efficiency.
Implementation Method 1
the moisture absorbing/discharging member can absorb water vapor contained in the air delivered from the first air blower
Implementation Method 2
The heat exchanger, by cooling the air having flowed into the heat exchanger, generates the refrigerant from the air having flowed into the heat exchanger
Implementation Method 3
a heater configured to heat the moisture absorbing/discharging member
Implementation Method 4
transformation of the refrigerant into a gas, which is an endothermic reaction, can be used to draw heat from the cooling target to cool the cooling target
Data Source
AI summary
A projector a cooler configured to cool a cooling target based on transformation of a refrigerant into a gas. The cooler includes a refrigerant generator configured to generate the refrigerant and a refrigerant sender configured to send the generated refrigerant toward the cooling target. The refrigerant generator includes a moisture absorbing/discharging member, a first air blower configured to deliver air outside the projector to the moisture absorbing/discharging member, a heat exchanger connected to the refrigerant sender, a heater configured to heat the moisture absorbing/discharging member, and a second air blower configured to deliver, to the heat exchanger, air around a portion of the moisture absorbing/discharging member that is the portion heated by the heater. The heat exchanger, by cooling the air having flowed into the heat exchanger, generates the refrigerant from the air having flowed into the heat exchanger. The moisture absorbing/discharging member is fixed.