Projector Refrigerant Generator Cooling System
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Solution Overview
Problem
Existing projector cooling technologies, such as air cooling and liquid cooling, face challenges in improving cooling performance without increasing size and noise, especially as the heat quantity increases with higher projector luminance.
Innovation Solution
A projector cooling system that utilizes a refrigerant generator to transform refrigerant into gas for cooling, comprising a rotating moisture-absorbing and releasing member, blowers, a heat exchanger, and a refrigerant sender, which efficiently transfers the generated refrigerant to cooling targets like light modulators, enhancing cooling performance while reducing size and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If cooling performance is improved in air cooling or liquid cooling, then cooling efficiency increases, but the cooling means increases in size and the projector increases in size
Solution Approach 1:
The patent applies phase transition of refrigerant (liquid to gas) in the cooling target to achieve cooling. The refrigerant is supplied in liquid form and transforms to gas phase upon contact with the cooling target, absorbing heat and providing efficient cooling without requiring large cooling components
Solution Approach 2:
The patent extracts the refrigerant storage function from external storage to an integrated refrigerant generator within the projector. The refrigerant generator produces refrigerant on-demand from atmospheric moisture, eliminating the need for external refrigerant storage and reducing overall system size
2Temperature
If cooling performance is improved in air cooling or liquid cooling, then cooling efficiency increases, but noise increases due to blower
Solution Approach 1:
The patent uses refrigerant phase transition (liquid to gas) for cooling, which provides superior cooling efficiency compared to conventional air cooling. This allows the use of smaller, quieter blowers while achieving the required cooling performance
Solution Approach 2:
The refrigerant generator automatically generates refrigerant from atmospheric moisture without requiring manual intervention or large storage tanks. The system self-regulates refrigerant production based on cooling demand, reducing the need for high-power blowers and associated noise
3Power
If heat quantity increases with higher projector luminance, then cooling demand increases, but conventional cooling means require larger size to handle the load
Solution Approach 1:
The patent utilizes the high heat absorption capacity of refrigerant phase transition (liquid to gas) to efficiently handle increased heat loads from higher luminance projectors. This phase change cooling mechanism provides superior heat removal efficiency per unit volume compared to conventional air or liquid cooling systems
Solution Approach 2:
The patent changes the cooling mechanism from conventional air/liquid convection to phase transition cooling, fundamentally altering the heat transfer parameter. This enables much higher cooling efficiency that can handle increased heat loads from high-luminance projectors without proportionally increasing system size
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 system achieves improved cooling performance with reduced size and noise, effectively managing increased heat loads and eliminating the need for external refrigerant storage, with the refrigerant generated internally from atmospheric vapor, enhancing user convenience and projector efficiency.
Implementation Method 1
a refrigerant generator configured to generate the refrigerant
Implementation Method 2
a heater configured to heat a portion of the moisture absorbing and releasing member located in a second region different from the first region
Implementation Method 3
Cooling air for cooling the air in the internal space via the plurality of channels flow through the insides of the plurality of channels
Data Source
AI summary
A projector includes a cooler configured to cool a cooling target based on transformation of a refrigerant into gas. A refrigerant generator includes a rotating moisture absorbing and releasing member, a first blower configured to send air to a portion of the member located in a first region, a heat exchanger, a heater configured to heat a portion of the member located in a second region, and a second blower configured to send, to the heat exchanger, air around the heated portion in the member. The heat exchanger includes a housing including an internal space into which the air sent by the second blower flows and a plurality of channels disposed in the internal space. Insides of the channels are separated from the internal space. Cooling air for cooling the air in the internal space via the channels flow through the insides of the channels.