Courtyard lamp is a kind of lamp used for outdoor lighting, which can decorate the environment and create an atmosphere. Advantages of courtyard lighting Courtyard lighting design is one of the indispensable means to adjust the atmosphere and beautify the environment. Courtyard lights add a lot of warmth, romance and mystery to the garden at night. one. Lighting The most basic function of courtyard lighting is lighting. At night, the lighting illuminates the whole courtyard to ensure the safety of courtyard owners and family activities. two. Enrich the space content of the courtyard Through the contrast of light and shade, the courtyard lights highlight the key landscape to be expressed in a background with low ambient brightness and attract people's attention. three. The art of decorating courtyard space The decorative function of courtyard lighting design can embellish or strengthen the space through the shape and texture of lamps and the arrangement and combination of lamps. four. Create a sense of atmosphere The organic combination of points, lines and surfaces is used to highlight the three-dimensional sense of the courtyard, and the art of light is scientifically applied to create a warm and aesthetic atmosphere. At the same time, different light colors, combined with the scenery of the courtyard, can create different courtyard atmosphere. For example, the modern courtyard lighting generally adopts white light, while the garden style courtyard adopts yellow warm light. Courtyard lamp can not only illuminate, but also improve the beauty. Solar courtyard lamp is a kind of courtyard lamp, which is green, environment-friendly and easy to install.

CCFL inorganic lamp with power equivalent to the brightness of 70W incandescent lamp is used for solar courtyard lamp lighting. The lamp column is 3M high and the service life of the lamp is more than 20000 hours; The power supply adopts 35W monocrystalline silicon solar panel and optically controlled timing switch. The warranty period is 25 years. After 25 years, the battery module can continue to be used, but the power generation decreases slightly. The power generation system has the characteristics of anti typhoon, anti humidity, anti ultraviolet radiation and so on. The system can ensure the daily working time of 4 ~ 6 hours in a 40 ¡æ ~ 70 ¡æ environment; In case of continuous rainy days, store the extra electric energy in the battery, which can ensure that users still have enough power supply for normal use in rainy days for 2 ~ 3 days. The cost of each solar garden lamp is 3000 ~ 4000 yuan. The analysis and comparison between photovoltaic courtyard lamp and ordinary courtyard lamp: the initial installation price of photovoltaic courtyard lamp is 120% ~ 136% of that of ordinary courtyard lamp. After two years of use, the comprehensive cost of the two lamps is basically the same. [1]

Scope of application: editing and broadcasting

It is composed of solar cell module, bracket, lamp pole, lamp cap, special bulb, storage battery, battery box, ground cage, etc. made of monocrystalline silicon or polycrystalline silicon. The colorful gardens and gardens with colorful and elegant shapes can be decorated like lanterns. The product can continuously illuminate for about 4-5 days and work for 8-10 hours every day when it is fully charged. It can also be designed according to the special requirements of users. [2]

Product parameter editing and broadcasting

*Main material: the lamp pole is of all steel structure, with integral hot-dip galvanizing / plastic spraying treatment

*Solar cell module: crystalline silicon 15-80wp (configured according to load)

*System working voltage: DC 12v-24v

*Controller: special controller for solar lamps, light control + time control

*Energy storage battery: totally enclosed maintenance free lead-acid battery 15v20ah-80ah

*Light source type: energy saving high-power integrated LED, rare earth high-efficiency energy-saving lamp

*Protection grade: IP65

*Service temperature: - 30 ¡ã C to 70 ¡ã C, wind resistance ¡Ý 150km / h

*Lighting time: adjust as needed

*Lamp pole height: made as required

*Rainy day guarantee: it can work continuously for more than 15 rainy days (different regions / Seasons) (it can be made as required)

There is no need to lay underground cables and pay for lighting electricity. The key components of solar garden lamps, such as solar panels, solar DC street lamp intelligent controllers, maintenance free batteries and lighting lamps, have been certified by the national development and Reform Commission / GEF / World Bank for photovoltaic products. It is mainly applicable to the lighting of urban roads, community squares, industrial parks, scenic spots, park green belts and other places.

Working principle editing and broadcasting

The solar panel receives light to realize photoelectric conversion, converts solar energy into electric energy, generates DC, and then charges the battery through the controller, and the battery stores electric energy. At night, through the control of photosensitive resistance, the battery will automatically discharge through the controller, the circuit will be automatically connected, and the battery will power on the bulb to start working without manual management. [3]

Scope of application: editing and broadcasting

Lighting and decoration of urban roads, commercial and residential communities, parks, scenic spots and squares. The municipal lighting system in the above places can also be transformed into solar lighting system according to the needs of users.

Editing and broadcasting of lighting types

According to different types of light sources, solar garden lamps are divided into solid light source, photoluminescence light source and gas discharge light source; According to the use of lamps, they can be divided into landscape decoration lighting and road lighting; According to the power supply mode, they are solar independent power supply and solar mains complementary power supply. [4]

Performance editing broadcast

Solar courtyard lamp performance

Solar courtyard lamp performance

Solar garden lights mainly rely on solar panels to generate electricity. The electric energy is stored in the battery through the solar controller without manual control. Regardless of spring, summer, autumn and winter, they can be automatically turned on and off according to the light level. All charging, discharging, opening and closing can completely complete intelligent and automatic control. Under the condition of good illumination, the photoelectric conversion rate of solar panels can reach 16%, and the service life can reach 30 years; The solar street lamp controller adopts the integrated design of light control + time control, waterproof and cold protection, which greatly reduces the failure rate; The light source adopts special LED light source for solar courtyard lamp, with high luminous efficiency and actual service life of more than 50000 hours; The lamp body is welded with Q235 high-quality steel, with galvanized plastic spraying and anti-corrosion treatment on the surface, no rust, aging resistance, smooth surface and wind resistance greater than grade 9.

Courtyard lamps are decorative products. The design style is simple and fashionable, classical and romantic, luxurious and rich, exquisite and elegant. The structure is simple and generous. It can not only show the characteristics of classical architectural culture, but also show the fashionable urban style in many aspects. Both modern and classical architectural environments have their own reasons. Classical but not rigid, thick but not lack of vitality, fashionable but not floating, elegant but not losing a stable atmosphere, which is of great ornamental and use value.

Courtyard lamp series lighting is a widely used form of decoration and lighting source configuration in garden scenic spots, cultural, leisure and entertainment squares, pedestrian streets, commercial streets, residential communities, both sides of carriageways and other places. It is a decorative lighting product. The rod body is made of various materials, the use of light sources is flexible, and the structural forms are diverse. It is the organic combination of beautification, lighting and greening, and the perfect crystallization of light and shadow, lamp and art. [2]

Advantage editing and broadcasting

long life

The semiconductor chip emits light without filament and glass bubble, is not afraid of vibration, is not easy to break, has a long lighting time, and its service life can reach 50000 hours (the service life of ordinary incandescent lamp is only 1000 hours, and that of ordinary energy-saving lamp is only 8000 hours) [2]

Light health

The light does not contain ultraviolet and infrared rays and does not produce radiation (ordinary lamp light contains ultraviolet and infrared rays) [2]

Green environmental protection

It does not contain harmful elements such as mercury and xenon, which is conducive to recovery and utilization, and will not produce electromagnetic interference (ordinary lamps contain elements such as mercury and lead, and electronic ballasts in energy-saving lamps will produce electromagnetic interference)

Protect eyesight

DC drive, no stroboscopic (ordinary lamps are AC driven, which will inevitably produce stroboscopic)

High light efficiency

90% of the electric energy is converted into visible light (80% of the electric energy of ordinary incandescent lamps is converted into heat energy, and only 20% of the electric energy is converted into light energy)

safety factor

Low voltage DC power supply is adopted, which is more safe, reliable and long service life. It also has anti-theft function, which strengthens the safety of the lamp itself. It can be used in dangerous places such as mines [5]

Market editing and broadcasting

Low voltage, DC power supply, battery and solar power supply are enough. It can be used in remote mountainous areas, field lighting and other places with low power supply. The unique LED lampshade makes the solar lamps realize the perfect combination of functionality and decoration. [6] The patented battery protects the electrical compartment, which is not only beautiful and generous, but also protects various devices in the electrical compartment from human damage. It has a unique anti-theft function and strengthens the safety of the lamp itself. [5]

Shop editorial broadcast

In the design of solar garden lamp, many factors are involved in the light source, solar cell system and battery charge and discharge control. Any problem in any link will cause product defects.

The solar garden lamp is composed of solar panel, solar charge and discharge controller, solar energy storage battery, load and lamp shell. [4]

Solar panel

The main function of solar panels is to convert light energy into electric energy. This phenomenon is called photovoltaic effect. Among many solar cells, monocrystalline silicon solar cells, polycrystalline silicon solar cells and amorphous silicon solar cells are common and practical. In the eastern and western regions with sufficient sunlight, it is better to use polycrystalline silicon solar cells. Because the production process of polycrystalline silicon solar cells is relatively simple, the price is lower than that of monocrystalline silicon cells, and the conversion efficiency has been continuously improved in recent years. In the southern region where there are more rainy days and less sunshine, it is better to use monocrystalline silicon solar cells, because the electrical performance parameters of monocrystalline silicon solar cells are relatively stable. Amorphous silicon solar cells are better when the indoor sunlight is very weak, because amorphous silicon solar cells have low requirements for solar lighting conditions.

Solar cells have five electrical performance parameters:

1. ISC is short circuit current

2. IM is the peak current

3. VOC is the open circuit voltage

4. VM is the peak voltage

5. PM is the peak power

Note: PM is peak power = IM is peak current ¡Á VM is the peak voltage.

For single-chip solar cells, it is a PN junction. In addition to generating electric energy when sunlight shines on it, it also has all the characteristics of PN junction. Under standard lighting conditions, its rated output voltage is 0.48v. The solar cell modules used in solar lighting lamps are composed of multiple solar cells connected.

Solar charge discharge controller

Regardless of the size of solar lamps, a good charge and discharge control circuit is essential. In order to prolong the service life of battery, its charge and discharge conditions must be limited to prevent battery overcharge and deep discharge. In addition, because the input energy of solar photovoltaic power generation system is extremely unstable, the control of battery charging in photovoltaic power generation system is more complex than that of ordinary battery charging. For the design of solar lamps, the success or failure often depends on the success or failure of the charge and discharge control circuit. Without a charge discharge control circuit with good performance, it is impossible to have a solar lamp with good performance. The charge discharge controller must have the following characteristics:

1. Anti reverse charging control

2. Anti overcharge control

3. Anti over discharge control

4. Temperature compensation

Solar energy storage battery

As the input energy of solar photovoltaic power generation system is not stable enough, it is generally necessary to configure battery system to work, and solar lamps are no exception. Batteries must be configured to work. Generally, there are lead-acid batteries, Ni-Cd batteries and Ni-H batteries. Their capacity selection directly affects the reliability and price of the system. The selection of battery capacity should generally follow the following principles: first, on the premise of meeting the lighting at night, store the energy of solar cell modules during the day as much as possible, and at the same time, store the electric energy to meet the lighting needs at night on continuous rainy days. The battery capacity is too small to meet the needs of night lighting or continuous use; If the battery capacity is too large and the battery board cannot provide sufficient charging current, the battery is often in a power loss state, affecting the service life of the battery and causing waste. [7]

load

Solar lamps and lanterns have the advantages of energy conservation and environmental protection. Of course, the load should be energy-saving and have a long service life. We generally use LED lamps, 12V DC energy-saving lamps and low-pressure sodium lamps.

Most lawn lamps use LED as the light source, which has a long service life of more than 100000 hours and low working voltage. It is very suitable for solar lawn lamps.

Courtyard lamps generally use LED lamps or 12V DC energy-saving lamps. The voltage of DC energy-saving lamps is DC, which is convenient and safe without inverter.

Street lamps generally use 12V DC energy-saving lamps and low-pressure sodium lamps. Low-pressure sodium lamps have high efficiency but are relatively expensive, so they are rarely used.

LED lamp shell

Between beauty and energy saving, most choose energy saving. The appearance requirements of lamps and lanterns should not be very high. They should be relatively practical.

To sum up, when choosing a solar garden lamp suitable for yourself, in addition to the energy-saving and environmental protection characteristics of the product, we should also focus on the use stability and economy of the product.

Jiangsu Entai Lighting Group Co., Ltd

Experience Member 0 Chinese Supplier

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