Introduction

Solar street lights are powered by crystalline silicon solar cells, maintenance-free valve-regulated sealed batteries (colloidal batteries) store electric energy, super bright LED lamps are used as light sources, and are controlled by intelligent charge and discharge controllers, which are used to replace traditional public electric lighting. street light.

What is solar energy?

Solar energy is an inexhaustible, clean, pollution-free and renewable green energy source. The use of solar power, unparalleled cleanliness, high security, relative breadth and sufficiency of energy, long life, and maintenance-free and other advantages that other conventional energy sources do not have, photovoltaic energy is considered to be the 21st century The most important new energy. Solar street lights do not need to lay cables, do not need AC power supply, and do not generate electricity bills; they use DC power supply and control; they have the advantages of good stability, long life, high luminous efficiency, easy installation and maintenance, high safety performance, energy saving and environmental protection, and economical and practical. It can be widely used in urban main and secondary arterial roads, residential areas, factories, tourist attractions, parking lots and other places. Product components light pole structure: steel light pole and bracket, the surface is sprayed with plastic, and the battery board is connected by special anti-theft stainless steel screws.

Solar cell components generally use monocrystalline silicon or polycrystalline silicon solar cell components; LED lamp holders generally use high-power LED light sources; The advanced controller also has the function of adjusting the lighting time in four seasons, half-power function, intelligent charging and discharging function, etc.; the battery is usually placed underground or there will be a special battery insulation box, which can use valve-regulated lead-acid batteries, colloidal batteries, Iron-aluminum batteries or lithium batteries, etc. Solar lamps work fully automatically without trenching and wiring, but the lamp pole needs to be installed on the embedded parts (concrete base).

What is the working principle of solar street lights?

Description of the working principle of solar street lights: during the day, the solar street lights are under the control of the intelligent controller, the solar panels are irradiated by sunlight, absorb solar light and convert it into electrical energy, the solar battery components charge the battery pack during the day, and the battery pack provides power to the LED at night The light source is powered to realize the lighting function. The DC controller can ensure that the battery pack will not be damaged due to overcharging or overdischarging, and it also has functions such as light control, time control, temperature compensation, lightning protection, and reverse polarity protection.

What is the working principle of solar street lights?

Description of the working principle of solar street lights: during the day, the solar street lights are under the control of the intelligent controller, the solar panels are irradiated by sunlight, absorb solar light and convert it into electrical energy, the solar battery components charge the battery pack during the day, and the battery pack provides power to the LED at night The light source is powered to realize the lighting function. The DC controller can ensure that the battery pack will not be damaged due to overcharging or overdischarging, and it also has functions such as light control, time control, temperature compensation, lightning protection, and reverse polarity protection.

What are the technical advantages of solar street lights?

1. Easy installation: When installing solar street lights, there is no need to set up complicated lines, just make a cement base, make a battery pit, and fix it with galvanized bolts. It does not need to consume a lot of manpower, material resources, and financial resources, and the installation is simple. There is no need to wire or “open the belly” to dig the ground for construction, and there is no concern about power outages and power cuts.

2. Less investment: One-time investment of solar street lamps, long-term benefits, due to the simple wiring, no maintenance costs, no expensive electricity bills. The cost will be recovered in 6-7 years, and more than 1 million electricity and maintenance costs will be saved in 3-4 years. It can save the high electricity bill of the city circuit lamp, the complicated circuit, and the need for long-term uninterrupted maintenance of the circuit. Especially in the case of unstable voltage, it is inevitable that the sodium lamp is fragile, and with the extension of the service life, the circuit is aging and the maintenance cost is increasing year by year.

3. Good safety performance: Because solar street lights use 12-24V low voltage, the voltage is stable, the operation is reliable, and there is no potential safety hazard. It is an ideal product for ecological communities and road administration departments. Absolutely no accidents such as electric shock and fire. There are many hidden dangers in the safety of circuit lamps in the city, and people’s living environment is constantly changing. Road reconstruction, landscape engineering construction, abnormal power supply, and cross-construction of water and gas pipelines have brought many hidden dangers.

4. Energy saving and environmental protection: solar photoelectric conversion provides electric energy, which is inexhaustible and inexhaustible. No pollution, no noise, no radiation. Solar street lights can add new selling points to the development and promotion of noble ecological communities; sustainably reduce property management costs, and reduce the cost of public sharing by owners. In summary, the inherent characteristics of solar lighting, such as safety and no hidden dangers, energy saving and no consumption, green environmental protection, easy installation, automatic control and maintenance-free, will directly bring obvious advantages to the sales of real estate and the construction of municipal engineering.

5. Long life: The life of solar lamps is much longer than that of ordinary electric lamps. For example, the main part of solar lamps, the solar battery module, has a service life of 25 years; the average life of low-pressure sodium lamps is 18,000 hours; The average lifespan of Jise energy-saving lamps is 6,000 hours; the average lifespan of super bright LEDs is more than 50,000 hours; the lifespan of special solar batteries is 2-5 years below 38AH; 3-7 years for 38-150AH. The products have high technological content, and the control system and accessories are all international brands, intelligently designed, and reliable in quality. According to the regulations of the local commodity price bureau in the conventional community, “a one-time charge of street lamp maintenance fee of 6 yuan/㎡ according to the 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 and lanterns are quite obvious from a comprehensive comparison. In the solar power supply system, the performance of the battery directly affects the comprehensive cost, operation and service life of the system. In this plan, the latest energy storage gel battery jointly developed by the company and the Institute of Metal Research, Chinese Academy of Sciences is selected. Compared with ordinary Compared with lead-acid batteries, it has the following outstanding features in terms of design and manufacturing process: the service life is super long, and the service life is five to ten years under normal circumstances. The use of suitable positive and negative electrode alloy formulations and active material ratios makes the battery more suitable for the use characteristics of energy storage batteries for cycle charging and discharging. The design of the colloidal electrolyte can effectively inhibit the derusting of the active material and the sulfation of the plate, thereby delaying the performance decline of the battery during use. Greatly improved the deep charge and discharge cycle life of the battery. Select the fourth generation lighting product LED light source.

Conclusion

Before we use solar street lights, we should understand the principle of solar energy and understand its benefits, so that it will be more beneficial for us to use it.