The principle of solar street light and composition

Of working principle of the solar street lights and solar street lamps use light born v effect principle of solar cells, solar cells absorb solar photon energy to generate electricity during the day, is stored in the storage battery by the controller, when the night falls or light lamps and lanterns around low

of working principle of solar street lights and solar street lamps using the photovoltaic effect principle of solar cells, solar cells absorb solar energy during the day the photon energy to generate electricity, electricity is stored in the storage battery by the controller; When night falls or lamp illumination around low, through the controller to the light source power supply after a set time, storage battery is cut off. Solar street lamps of solar street lamps mainly consists of the following parts: the solar cell module, modules, solar controller, storage battery, light source, light pole, Including the lamps and lanterns) And so on. Controller regardless of how much solar energy lamp, a good charge and discharge controller is indispensable. In order to prolong the service life of batteries, must limit the charging and discharging conditions, in order to prevent the battery overcharge and depth charge. In difference in temperature big place, qualified controller should also has temperature compensation function. Controller should have at the same time, the solar energy street light control, light control and time control, and should be cut off at night and control the function of the load, in order to prolong the working hours of street lamp on a rainy day. The controller is specially designed for solar DC lamps, lighting control start + timing delay shutdown. Timing closure time can be adjusted; With short circuit, overload, unique meter and full protection, over discharge a fully functional protection measures, such as automatic shutdown charging indicator, fault and over discharge instructions. The special maintenance free storage of solar energy because the energy input of solar energy photovoltaic power generation system is extremely unstable, so often need to configure the battery system to work. Generally have lead-acid batteries, nickel cadmium battery and nickel metal hydride batteries. The choice of battery capacity in general should follow the following principles: first, under the premise of meeting the night lighting requirement during the day the energy of the solar energy battery components should be stored as much as possible, at the same time, the electricity required to continuous rainy days night lighting should be stored. Battery capacity is too small, cannot satisfy the needs of night lighting. The battery is too big. On the one hand, the battery power is always out, affect the service life of the battery, resulting in waste. What kind of light source is solar battery lamp can be normal use of an important indicator. Generally adopts low-voltage energy-saving lamp, solar lamp, low pressure sodium lamp, energy-saving lamps and led light source.