Off-grid lighting system

A lighting system, off-grid technology, applied in the field of lighting systems, can solve the problems of limited maintenance capacity, high use cost, and great impact in underdeveloped areas, and achieve the effect of improving lifestyle, low use cost, and improving efficiency

Inactive Publication Date: 2012-03-21

常熟卓辉光电科技股份有限公司

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AI-Extracted Technical Summary

Problems solved by technology

[0006] For the lighting problems in underdeveloped areas of the world, such as the above-mentioned Africa, there are currently two solutions: one is traditional fossil fuels, which are expensive to use, unsanitary and unsafe; the other is based on solar photovoltaic power generation technology Off-grid lighting products, the current conversion efficiency ...

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Method used

[0023] In order to ensure power generation efficiency, a radiator is provided at the cold end ...

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Abstract

The invention discloses an off-grid lighting system, which comprises a solar energy temperature difference generating device, a storage battery (5) and load (6), wherein the solar energy temperature difference generating device is connected with the load (6), the storage battery (5) is connected between the solar energy temperature difference generating device and the load (6), and the solar energy temperature difference generating device comprises a solar energy thermal collector (1) and a temperature difference generating module (2). The solar energy thermal collector (1) is connected with the temperature difference generating module (2) through a warming device (3), and the warming device (3) is connected with the solar energy thermal collector (1) and the temperature difference generating module (2) through guide pipes. The off-grid lighting system is simple in structure, low in utilizing cost, high in generating efficiency and reliable and stable in performance, and is an ideal, low-price, safe lighting product which uses non-fossil fuel.

Application Domain

With built-in powerGenerators/motors

Technology Topic

Fossil fuelLighting system +4

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Examples

Experimental program(1)

Example Embodiment

[0017] As shown in the drawings, an off-grid lighting system includes a solar thermoelectric power generation device, a battery 5 and a load 6 , the solar thermoelectric power generation device is connected to the load 6 , and the battery 5 is connected between the solar thermoelectric power generation device and the load 6 .

[0018] Wherein, the solar thermoelectric power generation device includes a solar heat collector 1 and a thermoelectric power generation module 2, the solar heat collector 1 is connected with the thermoelectric power generation module through a heating device, and the heating device 3 is connected with the solar heat collector 1 and the thermoelectric power generation module 2 connected by conduits.

[0019] Considering that the lighting time is generally non-sunshine time, it is necessary to store the thermal energy collected by the solar collector 1 or store the electricity after generating electricity. Box 4.

[0020] Honeycomb flat plate heat pipe solar heat collection technology utilizes the superconductivity and unidirectional heat transfer of heat pipes. The honeycomb structure integrated flat plate has a large heat collection surface, which can improve the efficiency by 15% compared with vacuum tube solar heat collectors. In order to collect solar energy efficiently, the The solar heat collector 1 is a honeycomb flat heat pipe structure.

[0021] The heat collected by the solar heat collector 1 can cause the thermal oil in the heating device to heat up to 160 degrees, and form a temperature difference of more than 100 degrees with the environment, thereby prompting the thermoelectric power generation module 2 to work.

[0022] When the temperature difference between the cold side and the hot side of the thermoelectric power generation module 2 reaches 100 degrees, the voltage is 5.2 volts. If the temperature difference is between 0-100 degrees, the voltage range is between 0-5.2, and the current is proportional to the number of parallel-connected heat sinks.

[0023] In order to ensure power generation efficiency, a radiator is provided at the cold end of the thermoelectric power generation module 2 to maintain sufficient temperature difference.

[0024] The invention integrates advanced solar heat collection technology, high-efficiency heat storage technology, super thermal conduction technology and thermoelectric power generation technology. As a new type of off-grid lighting system, it can be widely used not only in underdeveloped areas like Africa, but also in areas not covered by power grids in developed or developing countries, such as night classes, security, shops or outdoor markets in remote villages and Emergency lighting for disaster relief, improving people's life style.

[0025] When the parameters of the off-grid lighting system of the present invention are as follows:

[0026] Solar collector 1 (collector plate) area: 0.5m 2

[0027] Power generation module 2 volume: 1m*20cm*25cm

[0028] Hot water storage tank 4 volume: 20L

[0029] Battery capacity: 5V 90AH

[0030] The system can supply at least 10 common rooms, each with a 3W LED light, and continuous lighting for 3 hours.

[0031] The present invention has a broad market prospect. Taking Africa as an example, the African population is 1 billion (in 2009), accounting for about 15% of the world's total population. The regions that have not been powered on will spend about 17 billion U.S. dollars per year for lighting. It is kerosene lamps and other fuel-based lighting products - which are costly, inefficient, polluting and fire-prone - and which often account for 10-15% of local household income, further exacerbating poverty. Therefore, the safe, reliable, high-quality and low-priced modern lighting products of the device have a potential huge market here.

[0032] The above embodiments do not limit the present invention in any way, and all technical solutions obtained by means of equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

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Description & Claims & Application Information

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Optimize your lifestyle

Off-grid lighting system

A lighting system, off-grid technology, applied in the field of lighting systems, can solve the problems of limited maintenance capacity, high use cost, and great impact in underdeveloped areas, and achieve the effect of improving lifestyle, low use cost, and improving efficiency

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

Image

Examples

Example Embodiment

PUM

Description & Claims & Application Information

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