Understand the working principle and advantages of solar street lights in 30 seconds

Solar energy is renewable and clean energy, which is inexhaustible and inexhaustible, and is an inevitable trend of future energy utilization. With the widespread application of clean energy solar energy and the gradual maturity of energy storage technologies, the advantages of solar street lights in road lighting and rural lighting have gradually emerged, and it has become a trend to replace city circuit lights through cables. This article first introduces the components of solar street lamps, secondly explains the working principles and advantages of solar street lamps, and finally introduces the application fields and application principles of solar street lights.

1. Solar photovoltaic modules

Components are generally divided into two parts: single crystal and polycrystalline. Of course, single crystal and polycrystalline are also divided into A and B sides, so this is why the prices of components with the same configuration on the market are so different. What came out. The function of the module is to use solar energy to convert the electrical energy that can be stored in the battery. The conversion rate of the single crystal is currently up to 17%, and the polycrystal is about 12%.

2. Solar battery

As a function of storing and releasing electrical energy, the battery can be installed on the lamp post or buried underground. The function of the battery box is to protect the battery underground. The battery will not be corroded by groundwater. The working principle of the battery is to store solar energy during the day. The electrical energy converted by photovoltaic modules is stored in the body, and discharges at night until the controller commands the time to start. The product quality of manufacturers with different technical capabilities is as different as the corresponding price.

3. Solar controller

The main skeleton of the street lamp system, the big heart, for example, the image of the human heart is good, without problems, people can operate normally, if the heart has problems or other parts of the body are exhausted, it will not be useful. The quality of the controller directly affects the life of the solar street light system. It is best to choose a certain brand, such as Nanjing Putian, Shenzhen Shuo Day Light, etc.

4. LED light source

Nowadays, it is generally better to use a flat lamp base. The light source is optional, mainly in these two accessories, the traditional change to the led lamp housing is larger, the heat dissipation performance is a bit worse, the flat lamp base is flat, looks high-end, The lamp head has built-in heat dissipation. The light source has domestic and imported points. The reason for domestic technology is generally based on imports. Imports are better done by Puri and Corey. Puri also has 33 and 45 points, different The price of the selected LED light source is also different

5. Solar street light pole

The light pole part is customized according to the requirements of the customer on the pole type and configuration parameters at the beginning of the design. Different sizes and styles require different prices.

The working principle of solar street lamps is to convert solar energy into electric energy to achieve lighting. The top of the street lamp is a solar panel, also known as a photovoltaic module. During the daytime, these polycrystalline silicon photovoltaic modules convert solar energy into electrical energy and store it in the battery, so that the solar street lamp is intelligently controlled Under the control of the device, the solar cell panel is irradiated by sunlight, absorbs the solar light and converts it into electrical energy, and the solar cell module charges the battery pack during the day. In the evening, the electric energy is transmitted to the light source through the control of the controller, which illuminates people at night. At night, the battery pack provides power to the LED light source to realize the lighting function.

Solar street lights generate electricity through solar energy, so there is no cable, no leakage and other accidents will occur. The DC controller can ensure that the battery pack is not damaged due to overcharge or overdischarge, and also has functions such as light control, time control, temperature compensation, lightning protection, and reverse polarity protection. No need to lay cables, no AC power supply, no electricity charges.

A series of advantages such as low-carbon environmental protection, safety and reliability of solar street lamps have been recognized by customers and have been vigorously promoted. Therefore, it can be widely used in urban primary and secondary arterial roads, communities, factories, tourist attractions, parking lots and other places.

1. Wide energy

Solar street lights use solar photovoltaic cells to provide electrical energy. Solar energy, as a green and environmentally friendly new energy source, is "inexhaustible and inexhaustible." Making full use of solar energy resources has a positive significance for easing the tension of conventional energy.

2. Simple and convenient installation

The installation of solar street lights is simple and convenient. There is no need to do a lot of basic projects such as laying cables like ordinary street lights. It only needs to be fixed by a base. All the lines and control parts are placed in the light frame to form a whole.

3. Low maintenance cost

The solar power supply used by solar street lights, except for the conversion of rainy days to mains power supply will generate a small part of the electricity cost, the operating cost is almost zero. The operation of the entire system is controlled automatically, without human intervention, and almost no maintenance costs.

1. Installation comparison

When installing, no complicated wiring is needed, just make a cement base and a battery pit within 1m, and fix it with galvanized bolts.

There are complicated operating procedures in the construction of city circuit lights. First of all, it is necessary to install auxiliary cables, dig trenches, lay pipes, thread inside the pipes, backfill and other civil constructions, which consumes a lot of manpower, material resources, and financial resources. Finally, debugging is required. Once a problem occurs, it will cause a lot of consumption.

2. Cost comparison

One-time investment and long-term benefit of solar street lights, due to the simplicity of the line, no maintenance costs and expensive electricity costs. Recover the cost in 6-7 years, and save more than 1 million in electricity and maintenance costs in the next 3-4 years.

The electricity cost of the city's circuit lights is high, and the circuit is complicated. It is necessary to repair the circuit for a long time without interruption. In the case of special voltage instability, the fragility of sodium lamps is inevitable, and with the extension of years, the aging of lines and maintenance costs are increasing year by year.

3. Safety comparison

Solar street lights are 12-24V low voltage, stable voltage, reliable operation, no hidden safety hazards, is an ideal product for ecological communities and road administration departments.

The safety hazards of the city's circuit lights are large. People's living environment is constantly changing. Road reconstruction, landscape engineering construction, abnormal power supply, and cross-construction of water and gas pipelines have caused many hidden dangers.

4. Environmental protection comparison

Solar street lights can add new selling points for the development and promotion of noble ecological communities; sustainable reduction of property management costs and reduction of the cost of the owners' public allocation. In summary, the inherent characteristics of solar lighting such as safety, no hidden danger, energy saving and no consumption, green environmental protection, easy installation, and automatic maintenance-free maintenance will directly bring obvious advantages to the sales of real estate and the construction of municipal projects.

5. Life comparison

The life span of solar lamps is much higher than that of ordinary electric lamps. For example, the main component of solar lamps ---- the life span of solar cell modules is 25 years; the average life of low-pressure sodium lamps is 18,000 hours; the average of low-voltage high-efficiency three-color energy-saving lamps 6000 hours of life; the average life of ultra-bright LEDs is more than 50000 hours; the life of solar batteries is 2-5 years below 38AH; 3-7 years from 38-150AH. According to the regulations of the conventional community, according to the local price bureau's "one-time charge of 6 yuan per square meter for street lamp maintenance fee based on pure residential building area", the initial investment of ordinary lamps is much higher than that of solar lamps. In short, the characteristics of saving investment in solar lamps are quite obvious from a comprehensive comparison.

1) Highways in rural, township and other peripheral areas receive lighting.

2) Lighting of city squares, parking lots, school playgrounds, workers' green spaces, and parks.

3) Lighting of golf courses, beaches, high-end villas, etc.

4) Highway warning signs, bridge street lamp power replacement, etc.

1. Practicality principle

The main purpose of solar street lamps in urban lighting systems is to save energy consumption, but because of its greater influence by weather factors, for cloudy days and areas with high power requirements, solar street lamps may not fully meet the lighting needs. Based on this, in the application design, it is necessary to combine the design effect of the original street light system, increase solar power supply, and realize the complementarity of the mains power supply and the solar power supply, to ensure that the solar power supply can be switched to the mains power supply in a timely manner, and improve the entire Application efficiency of lighting system.

2. The principle of efficiency

In the application design, it is necessary to improve its application efficiency through reasonable design on the basis of meeting the functional requirements of the lighting system, while reducing system energy consumption and reducing pollution. To achieve the purpose of energy saving and environmental protection. In addition, the application design for solar street lights. In order to ensure that it has a relatively high application efficiency after being put into use, it should also do a good analysis of the local geographical factors and meteorological factors of the project, and conduct detailed investigation and analysis of the actual conditions such as sunshine time, fog hoop weather and rainy weather The actual situation comes to adjust the design plan at any time, and strive to meet the needs of the lighting system to the greatest extent.

3. Traffic safety principles

The main purpose of urban road lighting system construction is to ensure traffic safety, and on this basis to improve traffic efficiency, provide a safe and comfortable environment for traffic operation. Therefore, in the construction and application of solar street lamps, the principle of traffic safety must be followed. In accordance with the actual needs of local road transportation, reasonable design should be carried out. Ensure that all aspects of the design meet the requirements for use.