A. Solar street lamps have been invented to bring great convenience to human life
1, in order to better the construction of the city, the city street lamps are generally change for solar street lights, solar street light price is reasonable, used the traditional kind of street lamp installation procedure is complicated, to lay circuit, etc., and the cost of electricity is higher, and to use the wattage larger street lamp holder, not only is dimly lit, more conducive to the light of the city.
2. The price of solar street lamp is relatively low, energy saving and environmental protection, and the installation procedure is simpler than the traditional one. At the same time, there is no need to lay complicated circuits.
3, now the saving of resources has become a worldwide concern, so the invention of solar energy has brought great convenience to human life, and China's solar radiation is relatively high, because the solar energy is very rich. The price of solar street lamps is uneven, ranging from 200 yuan to 1,000 yuan. Compared with traditional street lamps, the price is much cheaper. The reason for the uneven price of street lamps is not only the different materials, but also the different brands selected. For consumers, brand is also the guarantee of quality.
Most solar street lamps can be lit for eight to nine hours after being fully charged, so the quality of solar street lamps can be taken into account when choosing. When choosing street lamps, we should take the installation section into consideration. Different sections and environments are different, so we should choose different specifications. For example, the width of rural roads is less than ten meters, and most roads are between four and six meters, so the wattage selected by the lamp holder should be able to reach the road surface of this width.
4. Working principle of solar street lamp: under the control of intelligent controller during the day, solar panel absorbs solar light and converts it into electric energy after being exposed to sunlight. Solar battery module charges lithium battery during the day, and lithium battery provides power to LED light source at night to realize lighting function. Dc controller can ensure the lithium battery is not damaged due to overcharge or overdischarge, and it has PIR human sensor, light control, time control, temperature compensation, lightning protection, reverse polarity protection and other functions.
Second, the working principle of solar street lamp
1, the working principle of the solar street light is the solar energy into electrical energy to realize lighting, street lamp is at the top of the solar panels and photovoltaic components, during the day these made of polycrystalline silicon photovoltaic modules convert solar energy into electrical energy stored in a battery, made under the control of the intelligent controller of solar energy street lamp, solar panels after the illuminate of sunshine, absorb the solar energy light into electrical energy, solar battery components to the battery charge during the day. In the evening, the electric energy is transmitted to the light source through the control of the controller, so as to illuminate people at night. At night, the battery provides power to LED light source to realize lighting function.
2. Solar street lamps generate electricity through solar energy, so there are no cables, no leakage of electricity and other accidents. Dc controller can ensure the battery is not damaged due to overcharge or overdischarge, and has the functions of light control, time control, temperature compensation, lightning protection and reverse polarity protection. No cables, no ac power, no electricity.
3. A series of advantages such as low carbon, environmental protection, safety and reliability, etc. of solar street lamps have been recognized by the majority of customers, thus being vigorously promoted. Therefore, it can be widely used in urban main and secondary roads, residential areas, factories, tourist attractions, parking lots and other places.
Third, the advantages of solar street lamps
1. Wide energy resources
Solar street lamps use solar photovoltaic cells to provide electricity, solar energy as a green new energy, "inexhaustible, inexhaustible". Making full use of solar energy resources is of positive significance for easing the shortage of conventional energy resources.
2. Simple and convenient installation
The installation of solar street lamps is simple and convenient. There is no need to lay cables and other basic works like ordinary street lamps. Only a base is required to be fixed, and all the lines and control parts are placed in the lamp frame to form a whole.
3. Low maintenance cost
Solar street lamps use solar power, except the rainy day converted to the power supply will produce a small part of the electricity cost, the operation cost is almost zero. The operation of the whole system is automatic control, without human intervention, almost no maintenance cost.
Finally, the service life of the solar street lamp also depends on the necessary maintenance at ordinary times. In the early stage of installation, it should be done strictly according to the construction standard. In the configuration, it should also be reasonably matched as far as possible to increase the capacity of the battery, thus extending the life of the solar street lamp.