Structure and principle of solar lights manufacturer Si […]
Structure and principle of solar lights manufacturer
Since the 20th century, with the development of social economy and the improvement of people's living standards, the demand for energy has been increasing. The limited nature of petrochemical energy resources and their impact on the global climate and environment during the combustion process have attracted increasing attention. From the perspective of the needs of resources, environment, and social development, the development and utilization of new energy and renewable energy is an inevitable trend. With the rapid growth of our country's economy, the demand for energy has increased significantly, and the tension in power consumption has in particular increased. The search for new and renewable energy sources is urgent. Solar energy is a very important renewable energy source, and solar lamps are a kind of solar application products. With the rise of urban lighting projects in China, this has paved the way for the popularization and development of solar lamps. Solar light is a solar panel that converts the light energy of the sun into electrical energy during the day and stores it. At night, the light-emitting element is a new product that is converted from electrical energy into light. At present, there are two types of solar panels: polycrystalline silicon and single crystal silicon. Domestic production is already possible. The storage of electrical energy is performed by rechargeable batteries or accumulators. The charging and discharging process is controlled by a certain design circuit.
It is also the most valuable part of the solar power system. Its role is to convert the radiant energy of the sun into electrical energy, and then send it to the battery for storage or to drive the load to work. The quality and cost of solar cells will directly determine the quality and cost of the entire system. Most of the polysilicon materials currently used in solar cells are aggregates containing a large amount of single crystal particles, or they are made by melting and casting of waste single crystal silicon materials and metallurgical grade silicon materials. The process is to select polycrystalline blocks or single crystal silicon head and tail materials with a resistivity of 00 ~ 300 Q-cm, after crushing, a mixture of hydrofluoric acid and nitric acid of 5 is used for appropriate corrosion, and then deionized The water was neutral and rinsed.