Thermoelectric Lighting Using Solar and LED Heat for Continuous Power
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Solution Overview
Problem
Existing lighting devices using solar power generation are ineffective during cloudy, rainy, or snowy weather, as they rely solely on solar electricity and cannot produce electricity at night, limiting their energy-saving potential.
Innovation Solution
A lighting device utilizing combined power generation through solar heat and heat generated from an LED, incorporating first and second thermoelectric elements with a cooling part to maximize temperature difference and efficiency, and additional components for heat collection and air-cooling to produce electricity both day and night.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If solar power generation is used for lighting devices, then energy saving is improved during daytime, but electricity production stops at night or during cloudy/rainy/snowy weather
Solution Approach 1:
The patent combines solar power generation with wind power generation in a single lighting device system. The solar panel generates electricity during daytime while the wind turbine generates electricity during nighttime or when wind blows, creating a complementary hybrid system that ensures continuous electricity production regardless of weather conditions.
Solution Approach 2:
The lighting device is designed to perform multiple power generation functions using both solar panels and wind turbines. This multi-functional approach allows the device to generate electricity from both solar and wind sources, making it adaptable to various weather conditions and ensuring reliable operation throughout the day and night.
2Power
If thermoelectric elements are used for power generation, then electricity is generated from heat, but temperature difference maintenance is difficult without cooling
Solution Approach 1:
The patent introduces a cooling fan as an intermediary component that actively removes heat from the thermoelectric elements. This mediator maintains the temperature difference across the thermoelectric elements by cooling their output side, enabling continuous power generation from the heat produced by LED modules without thermal equilibrium.
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
Enhances power generation efficiency and energy savings by leveraging solar heat and LED heat, with air-cooling and rotational energy conversion, ensuring continuous electricity production regardless of weather conditions.
Implementation Method 1
a first power generation part including a first thermoelectric element whose first surface has a high temperature part formed by solar heat, the first power generation part being configured to generate electrical energy by using the first thermoelectric element
Implementation Method 2
a second power generation part comprising a second thermoelectric element whose first surface has a high temperature part formed by heat generated from an LED module, the second power generation part being configured to generate electrical energy by using the second thermoelectric element
Implementation Method 3
a cooling part which is provided between the first power generation part and the second power generation part and simultaneously cools a second surface of each of the first thermoelectric element and the second thermoelectric element
Implementation Method 4
a first heat collection plate which is provided at an adjacent upper side of the first thermoelectric element and collects heat from the sun
Implementation Method 5
a second heat collection plate which is provided between a first surface of the second thermoelectric element and the LED module and collects heat generated from the LED module
Data Source
AI summary
Proposed is a lighting device using combined power generation. Particularly, the lighting device using combined power generation includes a first power generation part including a first thermoelectric element whose first surface has a high temperature part formed by solar heat, the first power generation part being configured to generate electrical energy by using the first thermoelectric element, a second power generation part including a second thermoelectric element whose first surface has a high temperature part formed by heat generated from an LED module, the second power generation part being configured to generate electrical energy by using the second thermoelectric element, and a cooling part which is provided between the first power generation part and the second power generation part and simultaneously cools a second surface of each of the first thermoelectric element and the second thermoelectric element.