Projector Cooling Control With Threshold-Activated TEC
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional cooling systems in projectors rely heavily on thermoelectric coolers that consume large amounts of power and become inefficient heat conductors when turned off, leading to high energy consumption and environmental concerns.
Innovation Solution
A cooling system with a heat dissipating device and a thermoelectric cooler where the thermoelectric cooler is initiated only when the heat source temperature exceeds a certain value and shut off when it falls below another value, using a controller to manage power usage, with the thermoelectric cooler positioned opposite the heat source without direct contact, optimizing heat dissipation and energy savings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the thermoelectric cooler is continuously operated to assist heat dissipation, then the heat dissipating efficiency is improved, but the power consumption increases significantly
Solution Approach 1:
The thermoelectric cooler is operated periodically rather than continuously. The controller activates the thermoelectric cooler only when the temperature sensor detects that the heat source temperature exceeds a predetermined threshold, and deactivates it when the temperature drops below the threshold. This periodic operation maintains adequate heat dissipation while significantly reducing overall power consumption compared to continuous operation.
Solution Approach 2:
The system incorporates a temperature sensor that continuously monitors the heat source temperature and provides feedback to the controller. Based on this feedback, the controller intelligently decides when to activate or deactivate the thermoelectric cooler, creating a closed-loop control system that optimizes both heat dissipation performance and power consumption.
2Use of energy by moving object
If the thermoelectric cooler is turned off to save power, then the power consumption is reduced, but the heat dissipating capability deteriorates
Solution Approach 1:
The thermoelectric cooler operates in periodic cycles rather than continuously. By setting appropriate temperature thresholds, the system ensures the cooler activates before overheating occurs and remains active only as long as necessary, thereby maintaining heat dissipating capability while minimizing power consumption.
Solution Approach 2:
The system uses its own temperature sensor and controller to automatically monitor and regulate the thermoelectric cooler operation based on actual thermal conditions. This self-service mechanism ensures the cooler is activated only when genuinely needed for heat dissipation, avoiding unnecessary power consumption while maintaining adequate cooling capability.
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 efficiently dissipates heat while minimizing power consumption by selectively activating the thermoelectric cooler, reducing energy usage and environmental impact while maintaining effective heat dissipation.
Implementation Method 1
the heat conduction principle thereof is to dissipate heat by means of a temperature difference between the cold and hot end of a semiconductor after being powered on
Implementation Method 2
The heat dissipating module 16 may be a heat sink fin set, a heat sink fin set installed with heat pipes, a liquid cooling device or a condensing cooling device
Data Source
AI summary
A cooling system for cooling a heat source and a projection apparatus having the same are disclosed. The cooling system includes a heat dissipating device and a thermoelectric cooler (TEC). The heat source is disposed on the side of the heat dissipating device. The TEC is disposed on the other side of the heat dissipating device corresponding to the heat source. The TEC is initiated as the temperature of the heat source is greater than the first value, while the TEC is shut off as the temperature of the heat source is lower than the second value. Therefore, the cooling system economizes the energy by controlling the operation of the TEC according to the temperature of the heat source.