Solar street lamp as a low carbon environmental protection road lighting equipment, has been rapidly known and applied for everyone. In order to help you further master and properly apply the solar street lamp, we will make a brief and detailed introduction to the basic knowledge of the relevant
The solar street lamp is composed of the following parts :① photovoltaic panel ② controller ③ constant current power supply ④ battery ⑤ lamp mouth.
Basic knowledge of solar street lamp:
Photovoltaic panel is the source of all the kinetic energy, it is made up of a lot of silicon solar panels according to the series, series. The output voltage is generally 17 ~ 22V (applicable to 12V system) or 34 ~ 45V (applicable to 24ⅴ system software).
In addition to charging the battery, the photovoltaic panel also doubles as a light intensity controller for the system software. When the light source is strong in the daytime, the output voltage of the photovoltaic panel is high, and the battery charging controller will automatically select the battery charging; At night, when there is no output from the photovoltaic panels, the controller automatically connects the battery to the constant current power supply to turn on the street lamps. Nowadays, the battery charging controller and constant current power supply are generally installed together, called "integrated" controller.
Most of the basic parameters of the integrated controller are loaded by remote control, which is very convenient. Setting up new items usually includes: length of light per day. After lighting, the lighting time can be divided into multiple periods, and different current is set for each period. Lead-acid battery and lithium battery selection, etc.
The constant current power supply output part of the integrated controller is now mostly used in the wide voltage variable mode. My common 12V controller output voltage category has been 18 ~ 60V, current in 0.15 ~ 2A, output power ≦60W, can be very good into the requirements of a variety of loads.
The selection of the lamp port is generally dominated by 10 series, that is, the voltage category is in the middle of 30 ~ 36V, different output power flow to distinguish.
The process of installing a solar street lamp is to connect the load first and then the battery.
Since no photovoltaic panels are connected, the system software automatically identifies it as night, so the street lights are lit up 30 seconds later. In order to avoid sudden changes in external chromaticity (daytime dark shadows or night lightning strikes, etc.) or gradual change to zero boundary point, road lights flash.
The final process is to connect the photovoltaic panels, which act as light intensity controllers and automatically plug into the battery charging mode. No longer see installation work being carried out either.
