Solar street light from solar panels, including stent) , lamp holder, control box ( Inside the controller, battery, etc. ) And light pole, such as a few parts. Generally each into a power supply system, solar street lamps with conventional street lamp power supply network. Solar street lamps system
the solar street lamps Solar street light is a crystalline silicon solar battery power supply, valve control type sealed and maintenance-free battery ( Gel battery) Store electricity, super bright LED as light source, lamps and lanterns and controlled by the intelligent charging and discharging controller, is used to instead of the traditional public power lighting lamps. 】 By solar panels 【 Solar panels, 太阳能板) Is by absorbing sunlight, the solar radiation through the photoelectric effect or photochemical effect directly or indirectly converted into electrical energy device, the main material of most of the solar panel as the 'silicon', but because of the production cost is larger, so it widely used, we still have some limitations. 】 Including stent) , lamp holder, control box 【 The control box is used widely. 】 ( Inside the controller, battery, etc. ) And light pole, such as a few parts. Generally each into a power supply system, solar street lamps with conventional street lamp power supply network. Solar street lamps system' Solar street lamps system consists of eight elements. 】 Mainly there are 12 v and 24 v two.
one, solar cells choose
l. Type
solar cells convert solar energy to electricity. A practical have monocrystalline silicon 【 Silicon single crystal. 】 【, polycrystalline silicon and amorphous silicon solar cells Photovoltaic industry of solar cells are divided into crystalline silicon solar cells and amorphous silicon solar cells. 】 Such as three.
1) Monocrystalline silicon solar cell' Monocrystalline silicon solar cells, and is of high purity silicon rods for raw materials of solar cells, and is the fastest development of a solar cell. 】 Performance is stable. More appropriate in a rainy day, the sun is relatively not very plenty of southern region is used;
2) Polycrystalline silicon solar cell' Polycrystalline silicon solar cells, monocrystalline cells with high conversion efficiency and long life and material preparation technology of amorphous silicon thin-film batteries relative to simplify the advantages of a new generation of battery, its conversion efficiency of 17 - general 18%, slightly lower than that of single crystal silicon solar cell, there is no obvious efficiency decline, and possibly on the cheap substrate material preparation, the cost is far lower than the single crystal silicon battery, and efficiency higher than that of amorphous silicon thin-film batteries. 】 Production process is relatively simple, lower than single crystal silicon. Suitable for use in sufficient sunlight, sunlight good eastern and western region;
3) Amorphous silicon solar cells on the sun light conditions is lower, suitable for outdoor area used by the lack of sunlight.
2. Working voltage
the working voltage of the solar cell is about battery voltage l. Five times, can guarantee to the normal battery charging. As for 6 v battery' Battery is a kind of chemical energy directly into electrical energy device, is designed according to the rechargeable batteries, rechargeable by reversible chemical reactions, usually is refers to the lead-acid battery, it is one of the battery, belongs to the secondary battery. 】