The purchase, use and maintenance knowledge collection (solar street lamps Four courtyard

Solar battery is an important part in solar street light system, when there is light in the daytime will be made by electricity, solar panels need to night lighting releases energy to supply the solar street light when the light source of illumination, the

solar battery is an important part of the solar street light system. It store electric energy when there is light emitted by solar panels during the day, evening need to lighting energy released when solar street lighting. Currently using battery there are four main types: lead-acid maintenance-free batteries, ordinary lead-acid battery, gel battery and alkaline nickel cadmium battery. At present, the lead-acid battery and gel battery is the most widely used in solar street light system in our country two batteries. Due to its inherent 'free' maintenance features and less environmental pollution, they are very suitable for reliable performance of the solar street light system. Some manufacturers specially designed for solar street lamps system directly buried type battery solar street lamps, and do not use the battery box, which reduces the installation and maintenance costs. Main requirements to battery performance are as follows: first, has good deep circulation capacity and good capability of overcharge discharge; Second, through the special process design and colloid electrolyte guarantee long life of the battery. Third, solar battery to charge voltage and temperature has more wide application range, and should be suitable for different environmental requirements, for example, can be used under the condition of different normal cells, such as high altitude, high and low temperature. Fourth, special solar battery is usually free maintenance lead-acid battery other manufacturers have developed without the battery solar street lamps system. Solar battery and power grid in parallel. Switch is performed by the control circuit. Less investment and saving the cost of operation maintenance, low energy consumption, the system runs stably. Suitable for urban network near the street lamp, courtyard light and advertising light boxes. Finally, the battery capacity design principles are discussed. It is necessary to reasonably determine solar street lamp system of battery capacity. Battery capacity is too small, cannot satisfy the needs of night lighting. If a battery capacity is too big, will remain the state of power, this will affect the service life of the battery and wasteful. Battery capacity ( Ah) With the load capacity ( Ah) Ratio should be greater than 3 ~ 6 times: continuous area should be greater than 3 ~ 4 times less rain, continuous rain area should be greater than 5 ~ 6 times more. In addition, in parallel, consideration should be given every traffic light source of the imbalance between the individual cell. The number of parallel group should not exceed four. Pay attention to battery guard against theft.