In-depth Demand Report | Disassembling Solar Power Flood Light

The corridor lights made with high brightness leds, it shut down during the day, automatic light after dark.

A year of power consumption is less than 2 degrees, the service life of up to 10 years.



circuit working principle of the corridor lights circuit as shown in the figure below.

By the capacitance step-down circuit, rectifier circuit, LED light-emitting circuit and photoelectric control circuit and other parts.


220 v alternating current through the capacitor C1, R1 step-down current limit in A and B two points after about 15 v ac voltage, by VD1 ~ VD4.

For rectification, get about 14 v dc voltage on C2 as high brightness leds VD5 ~ VD8 working voltage, the working current of the light emitting diode is about 14 ma.

Due to the capacitor C1 is not active power consumption, the consumption of bleeder resistor power is negligible, thus the whole circuit of the power consumption of about 15 x 0.
014≈0-
2 (
W)
。


in order to further save energy and prolong the service life of high-brightness light-emitting diodes, circuit joined by photosensitive resistance R2, R3 resistance and triode VT1 of photoelectric control circuit, such as in the night of photosensitive resistance R2 value can reach more than 100 k, the C2 at the ends of the voltage by the R2, R3 after partial pressure provided to VT1 base dc bias voltage is small, VT1 cut-off, does not have any effect of light-emitting diode work;

When during the day, as a result of the action of the photoelectric effect, under the R2 resistance can be reduced to 1 ok, then VT1 conduction and close to saturation, because through the current biggest can reach 15 ma C1, because of the shunt VTl, C2 on voltage can drop below 4 v.


because the working voltage of each light-emitting diodes (leds) to achieve more than 3 v to start work, four series will reach more than 12 v, so at this time the light emitting diode can't normal light.


so, after the VT1 diversion 'short circuit', why power consumption of the circuit can decrescent?

This is because the capacitance step-down circuit under the condition of the output voltage is not too high can largely be regarded as a constant current source, its power consumption is proportional to the load resistance, after VT1 shunt made the voltage drop on the C2, equivalent to a load resistance is reduced, so power consumption is decreased.

With A and B at the ends of the voltage drop to 5 v, for example, suppose the C2 by alternating current on 15 ma, at this time of the circuit power consumption is about 5 x is 0.
015≈0.
The euro (
W)
。

So in the night light up an average of 12 hours a day, for example, power consumption is: (a year
0.
2×12+0.
08×12)
×365≈1.
2 (
kWh)
, which is 1.
2 degrees.




components selection and installation in the C1 use 0.

22 mu 250 vac metallized polyester film capacitor.

R2 using CDS photoresistance, models for GL4516, its light resistance (
10Lux)
For 5 ~ 1 ok Ω, resistance to 0.

6 m Ω, can also use other types of CDS photoresistance and diverge from as long as the appropriate adjustment when the parameters of R3 resistance can.

VD5 ~ VD8 with rated current to 20 ma, high brightness white light leds.
Other components parameters shown in the below.


corridor lights can use old energy-saving lamp assembly.

Remove the original bulb, leaving holes just as light-emitting diodes (leds) out of the hole, because the hole is larger, can use cardboard in four small opening corresponding to the position of the light emitting diode as a substrate.

Without having to make the circuit board assembly, available to the old circuit boards are assembled, leaving four rectifier diode, originally a 400 v electrolytic capacitor to be removed for 25 v 100 mu of electrolytic capacitors, dismantling the redundant components on printed circuit boards, the corridor lights on lap weld of the other components using the original solder joints.

Open a hole in the upper portion of the circular shell as light hole of photosensitive resistance, facilitate the outside light on the photosensitive resistance.


installed, turning on the power supply in normal indoor light, if blocking photoresistor light hole lamp is lit, remove the rear light is put out, said lamp working condition is normal.

Finally in the corridor of the lamp installation are using, if the light is a bit dark during the day when the lamp is lit, can be appropriately increase R3 resistance;

On the other hand, if the dark night when the lamp is not lit, can be appropriately reduced, R3 resistance.
Under normal circumstances is not need to debug.
The corridor lights after light.


note: due to the whole circuit is in 220 v ac power directly, so please be careful about making and debugging.

Buy the projector is an expensive investment, and operation and maintenance also need to be very careful, because it supplies, such as light bulbs, liquid crystal panel change rise not only trouble but also a lot of money, how to reduce the projector later use cost?

Can adopt precautionary method, the problem of frequency down?

If projection equipment problems get user control in advance, believe also substantially likely to use problems, aeriform in reduces the cost of the projector.

The following are some of the small make up to arrange about a use of the projector, you can consult.

Decorate the best projection environment projector work, are greatly influenced by the ambient light, outdoor light and indoor light is too strong will directly make the projection effect.

When decorate projection environment should be paid attention to the following: 1.
Put the curtain shade 2 outdoor light.
Screen above or near source 3 should be closed.

Walls, floor, try not to use easy reflective material 4.

5 local lighting, can use the spot light.

Tie-in choice and environment projection screen such as everyone knows, the service life of the bulb is certain, in most cases the light bulb damage is less than the life of a specified target, because of the high internal temperature of the light bulb, the environment temperature control is very important, all the projector has more than a fan to keep the environment temperature.

Light bulbs in high temperature environment for a long time, the light bulb will accelerate ageing, brightness attenuation, damaged bulbs in advance.

A light bulb present price four thousand yuan, is a not small cost for each user.

If you use 1000 hours and hours for 4 yuan, if you use 2000 hours, hours cost is 2 yuan.

How to reduce the cost of hours projection equipment for we put forward the important subject of research and analysis.

Dust removal maintain projector internal environmental indicators are important aspects to improve its service life, light path dust regularly is a good way to an economic and practical.
Under normal operating conditions: 1.

By light path, liquid crystal panels, cabinet filter, dust components, makes to improve ventilation and heat dissipation effect;
2.

Improve ventilation effect, light bulbs, LCD, ogle lens, polarizing plate to improve service life, reduce the aging speed;
3.

Through the dust control circuit board dust particles on the circuit to eliminate the influence of working point, improve image quality.
4.

To increase dust light transmittance, the brightness and contrast of the projector and color reduction measures such as promotion, improve projection effect.
5.

One or two times a year regularly dust removal, and improve the light bulbs, LCD, polarizing plate use fixed number of year, to reduce the frequency of replacement, finally save the later use cost.
6.

Monthly specialist is responsible for cleaning the projector screen pack, can reduce light road dust.
7.

Light path dust must be operated by professional engineers, once destroyed the LCD chip positioning, it is difficult to restore, so the light road dust is risky.
8.

Another factor affecting the service life of the light bulb is the operational problems, switch the projector must be strictly carried out in accordance with the instruction manual, especially the shutdown can't completely cut off the power supply, make a cooling fan work time (
General summer work longer than the winter)
Then unplug or turn off the power.

If the local frequent blackouts, want to consider using UPS power supply.
(

Equipped with indicators, according to the projector power rating by 1.

Number five times to choose power, delay time by 15 minutes to consider)
。
Consultation telephone: 0371 -

63506683/6583 author: henan TouYingCheng information sources: manufacturers network hardware

Velux (
Germany)

Training center in June 21, 2007 in the city of thuringia koda velux (
Germany)
The completion of a limited liability company is located.

This is a sunlight, fresh air, and the perfect construction of combination of wide field of vision, a partner and exchange of information and communication platform, a leading building the model of the future development trend.



how to reasonable use of natural light velux (
Germany)

Application of the latest technology training center building and with long history and culture traditions.

In the process of building the new building, we abandoned the conventional air conditioning technology, instead the idea with the future development trend of climate regulation, successfully a new regulation technology to use their light and air.

All the buildings are built using standard products, and at the same time using some different models of INTEGRA window and its variant of equipment;

Can be installed in the outdoor velux roof window and adopt CABRIOTM Windows accessories 'open' system solutions;
Can provide hot water solar collector;

Indoor installation of electric adjustable sunshade equipment with functions of shading, outdoor installation scroll shutter, external barrier with an automatic regulator with the sensor control play a role of insulation.

Therefore, training, building perfect products and equipment to be to evaluate the quality of the velux reference basis.


building 'a natural air conditioning concept has injected new vitality for construction.

Comprehensive and reasonable use of daylight and the basic principle of perfect form for creative design of this project.
', Jane.
Osterman and Heidi.

Darren Fletcher, osterman architecture
according to the demand for space function and the precondition of climate, we decided on the vast flat land to build the building.

The east-west building covers an area of about 24 x 44 m.

South the net area is about 940 square meters, factory building, facilities have lanes and outdoor parking place as well as the main channel.



the sun sunlight for indoor temperature and the degree of comfortable living environment plays a vital role.

Use of roof structures can not only get enough sunlight to improve the lighting conditions, can also with the most economical way to make more large space to accept to the sun.

For each link of design has grown two millimeters to meet the demand of the corresponding light installed 166 roof window, so the velux training center can enjoy all the year round the sun.

The sun will change with different seasons and time.

From the same altitude of the sun radiation to installing a dormer window in the light, can produce different light indoors, can use building control technique to adjust installed in indoor and outdoor sunshade device, all the equipment control system and electric control system of the velux INTEGA networked control.

Daylighting band installed roof window has been applied to the artificial lighting design, the basis of indoor lighting also parallel to the roof window installed on the roof of strip lighting equipment.


plan how to use the solar sun in the use of the building plays a vital role.

We how to design light inlet window, in order to make the room under the irradiation of the scattering light reach satisfactory lighting effect?

Velux in the design of the training center, is applied to some after experiment and invention of lighting device and is not affected by the outdoor light of artificial lighting ceiling.

Compared with the facade Windows, roof window to let in more sunlight, so that we can guarantee the sufficient sunshine throughout the year, bright environment to improve the efficiency of production and living comfort level plays a positive role.
The light source design consultant Peter.

Introduced to Andrew, 'when designing a building, I don't need to consider the artificial lighting, it is very important.

'


in the velux (
Germany)

Training center of the energy conservation performance evaluation, the eu energy commissioner andres.

We can learn from these inventions to new knowledge.
”

Since the European debt crisis, the growth rate of LED lighting demand in EU countries has slowed down, and the Chinese market with huge development potential has begun to enter the vision of LED lighting industry.
In 2013, although the overseas market began to pick up, the international lighting manufacturers insisted on the Chinese market, and stepped up the pace of expanding the factory.
Tracking the trend of overseas large-scale investment in China over the past year, we will find that this commercial competition without smoke has already reached the city, and a sense of urgency can not help but arise: 1.
Siphon effect: The Southwest production base of Philips LED products was put into production in Guiyang. Recently, it was learned from the Municipal Industry and Information Commission that the semiconductor lighting project of Guizhou Zhongfei Technology Co. , Ltd, the first batch of products from the southwest production base of Philips LED products is expected to be available at the end of this month.
The semiconductor lighting project covers an area of 210 mu, including standard factory buildings, warehouses, research institutes and other facilities.
After the project is completed, it can produce 460 thousand LED semiconductor lighting lamps and 30 thousand Poles annually.
It is estimated that the output value will reach 20 million yuan this year.
The city's annual output of 30 million pieces of LED Sapphire Project has been put into production and has the raw material foundation for the development of LED lighting industry.
However, in the entire LED industry chain, industrial support needs to be further followed up, and the production of Philips LED products southwest production base may produce siphon effect, attracting more downstream supporting enterprises to build investment. 2. Philips LED Professional Lighting (Chengdu)
Demonstration Park officially completed Philips LED Professional Lighting (Chengdu)
The demonstration park was officially completed in the Western Park of Chengdu High-Tech Development Zone.
This demonstration park includes a LED professional lighting production base and Philips advanced lighting application center.
The demonstration park covers an area of about 40000 m² square meters, including a super large lighting application center and a LED Professional lighting production base; The accumulated investment is 25 million euros.
Among them, Philips Chengdu lighting application center covers an area of 7000 m² square meters, showing Philips's innovative lighting applications from outdoor to indoor;
From light sources to lamps, from intelligent lighting control to overall lighting solutions, people can enjoy Philips lighting technology and solutions here and experience good lighting application effects.
The whole center takes a miniature intelligent city as the theme, and presents the magical effect of lighting through real-life display and intelligent control;
And through the advanced LED lighting system, to create the daily life scene of urban residents (
Such as: home, office, hotel, supermarket, clothing store, Road, city landscape, etc)
The application effect of lighting in these scenes is visually displayed, highlighting the important role of lighting in modern urban life.
Through the advanced lighting control system, the intelligent control and management of the lighting equipment in the center can be realized, so that it can achieve a scientific energy-saving level while presenting a visual effect, further explain the theme of a miniature intelligent city.
In today's economy, the competition in the market is no longer bounded by region or territory, but by the comprehensive strength of technology, price and quality.
The entry of large international manufacturers into the Chinese market has accelerated the competition for market resources on the one hand, and on the other hand, forced local enterprises to have a sense of crisis and promoted the overall improvement and progress of the technological level of the LED industry.
Local LED enterprises should have a sense of urgency, not be completely used or closed and exclusive, learn from the strengths of foreign companies in technology and management, and at the same time, compete with them in a proper way, as soon as possible, the extension extended its own national brand.

Explosion-proof lights are not difficult to understand literally, and they must be used to prevent explosions. It is mostly used in industrial production operations. With the deepening of reform and opening up, my country's chemical industry and other industrial industries are developing very rapidly, so the demand for LED explosion-proof lights is also increasing, so what is the role of explosion-proof lights? Mobile //./
**、Environmental aspects
Explosion-proof lights are generally used in dangerous environments where there are many combustibles and dust. It can make our working environment safe without any disaster. Explosion-proof lamps usually have explosion-proof requirements to ensure that they can work safely in any flammable and explosive environment, and they can also be emergency, and the emergency time is relatively long.
**, shell design.
The shell of the LED explosion-proof lamp is made of special alloy material, the structure is very exquisite, it has strong anti-impact and anti-impact ability, not easy to break, not only that, but also waterproof, dustproof, and corrosion , To ensure that the explosion-proof lamp does not need to be maintained, extending its service life.
Thirdly, in terms of function, why do large power plants choose LED explosion-proof lights?
The heat dissipation function of explosion-proof lights is very strong. Generally, it is controlled under Celsius in summer, and it is not easy to be burned out. The heat dissipation can be controlled artificially to ensure sufficient heat dissipation. In this way, the use environment can be guaranteed to a large extent in summer. In security.
Through the above introduction, we know that the role of explosion-proof lights is very large, and it has many advantages, it is worth mentioning that the quality of LED explosion-proof lights is reliable, and the circuit power supply is high Explosion-proof explosion-proof lamp components, and all have over-current protection, with so many safety guarantees, there is no need to worry about being damaged. Therefore, these explosion-proof lights can work in dangerous environments.
Why do large power plants choose LED explosion-proof lights? Why do large power plants choose LED explosion-proof lights?