CN202253303U - Constant current control all-in-one machine and photovoltaic street lamp lighting system with same - Google Patents
Constant current control all-in-one machine and photovoltaic street lamp lighting system with same Download PDFInfo
- Publication number
- CN202253303U CN202253303U CN2011202972090U CN201120297209U CN202253303U CN 202253303 U CN202253303 U CN 202253303U CN 2011202972090 U CN2011202972090 U CN 2011202972090U CN 201120297209 U CN201120297209 U CN 201120297209U CN 202253303 U CN202253303 U CN 202253303U
- Authority
- CN
- China
- Prior art keywords
- led
- constant current
- constant
- solar
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model provides a constant current control all-in-one machine, which includes a solar controller and an LED constant-current source, wherein the solar controller is provided with a single chip and further comprises an input rectifying and wave-filtering part, an output rectifying and wave-filtering part, a PWM voltage stability controlling part and a switch energy conversion part. Compared with the prior art, the constant current control all-in-one machine provided by the utility model integrates the solar controller and the LED constant-current source, so that the installation and maintenance difficulties are greatly reduced, and the efficiency of the photovoltaic lighting system is improved at the same time.
Description
[technical field]
The utility model relates to the photovoltaic lighting field, relates in particular to a kind of control constant current all-in-one that can control and provide constant-current supply output to photovoltaic energy storage battery charging and discharging state automatically.
[background technology]
Solar photovoltaic controller constant current all-in-one is an efficent electronic device of the energy storage battery charging and discharging state being controlled and provided constant-current supply output automatically, and being mainly used in the solar energy photovoltaic direct current electric power system, being particluarly suitable for LED is to use among the various photovoltaic illuminators of light source.LED technical development in recent years is very fast; Obtaining application widely aspect illumination and the demonstration; Characteristics such as its environmental protection, life-span are long, energy-efficient, low-temperature working superior performance, DC low-voltage driving; Therefore the work characteristics that very meets the photovoltaic illuminator becomes main light source in photovoltaic illumination and indication mechanism, have much the trend that substitutes the trichromatic energy saving light fixture.According to statistics, present nearly 300,000 covers of photovoltaic street lamp only applied every year of China, that wherein adopts led light source surpasses more than 40%.Can reach more than 100,000 hours the service life of LED in theory, but in actual application,, make the LED lost of life because that the design of LED constant-current source and type of drive are selected is improper, and very easily in damage.With the white light LEDs ideal format is example, and according to electric current, the change in voltage rule of LED, generally using forward voltage is about 3.0-3.6V; Representative value voltage is 3.3V, and electric current is 330mA, after the forward voltage that is added on the LED two ends surpasses 3.6V; The increase that forward voltage is very little, the forward current of LED all might rise at double, makes the temperature rise of LED illuminator too fast; Thereby quicken the LED optical attenuation, even burn LED.Because the LED luminosity almost is linear proportional relation (as shown in Figure 1) with the magnitude of current that passes through within the specific limits; Therefore in the time of will making each lamp pearl of LED send identical brightness; Must make its magnitude of current that passes through LED consistent, will guarantee also that simultaneously its electric current can not surpass certain limit.But the terminal voltage of battery can fluctuate along with the change of charged state within the specific limits in the photovoltaic system, so the charging-discharging controller with constant current output function just becomes requisite equalizing feature in the photovoltaic system that with LED is load.
Voltage, electric current variation characteristic according to LED; Accomplish to avoid drive current to exceed maximum rating, influence its reliability, obtain the brightness of expection again; And guarantee the brightness of each LED, the uniformity of colourity, just require existing controller must possess the function of constant current output.Led driver in the market has a lot, but the efficient of most of drivers, stability and reliability are not high, some driver from power consumption in addition surpassed the power consumption of LED, the efficient of other driver generally also can only be accomplished about 60%-70%.The control constant current all-in-one of therefore stable performance, high efficiency, reliable operation just seems particularly important.
Under present technical merit, the photoelectric transformation efficiency of solar photovoltaic assembly and costs an arm and a leg generally about 14-16%, and cost of electricity-generating is higher, therefore how to utilize limited electric energy just to become the crucial problem of photovoltaic system efficiently.The energy-efficient characteristic of LED becomes the optimal selection of photovoltaic lighting system undoubtedly.But the mounting means of traditional optical road lamp system has a lot of drawbacks; Like Fig. 2, shown in 3, in above system, photovoltaic module and LED light fixture need be installed in the top of lamp stand; Battery and controller for solar then are installed in the lamp stand bottom, and the LED constant-current source is installed among the LED light fixture.Because present common LED constant-current source of mounting means and LED lamp holder is installed on the lamppost, the height of general street lamp is all more than 10 meters, in case problem has appearred in the work of LED constant-current source; To change it so and just need employ crane or up-down aerial ladder; Maintenance cost is high, and the LED constant-current source and the controller for solar of product are two kinds of separate products at present, complex connection in the middle of practical application; Easy error in the middle of construction; And both control by each personal independently chip, its stability, and efficient is affected; In addition; The LED constant-current source generally is integrated in the middle of the lamp stand, and the line between controller for solar and the LED constant-current source is longer, the low-voltage and high-current output of controller for solar; Line loss is very big in the middle of normal length is the line about 20 meters, has reduced the effective rate of utilization of electric weight.
[utility model content]
The utility model technical problem to be solved is to provide a kind of control constant current all-in-one, and conversion efficiency and stability that it can effectively improve constant-current source make things convenient for installation and maintenance simultaneously.
For solving the problems of the technologies described above; The utility model adopts following technical scheme: a kind of control constant current all-in-one; Comprise controller for solar and LED constant-current source, said controller for solar is provided with a single-chip microcomputer and includes input rectifying filtering part, output rectifying and wave-filtering part, PWM voltage stabilizing control section, switch power conversion part.
A kind of optical road lamp illuminator; Comprise a control constant current all-in-one, LED light fixture, lamp stand, the photovoltaic module that is positioned at the battery of said lamp stand and is positioned at the lamp stand top; Said photovoltaic module electrically connects through lead and said control constant current all-in-one; Said control constant current all-in-one comprises controller for solar and LED constant-current source, and said controller for solar is provided with a single-chip microcomputer and includes input rectifying filtering part, output rectifying and wave-filtering part, PWM voltage stabilizing control section, switch power conversion part.
Compared to prior art, the said control constant current of the utility model all-in-one has combined controller for solar and LED constant-current source, greatly reduces the difficulty of installing and safeguarding, also can improve the efficient of photovoltaic lighting system simultaneously.
[description of drawings]
Fig. 1 is LED lamp luminosity and the curve map that passes through its magnitude of current.
Fig. 2 is traditional LED optical road lamp illuminator sketch map.
Fig. 3 is the line map of the described optical road lamp illuminator of Fig. 2.
Fig. 4 is the Organization Chart of the described control constant current of the utility model all-in-one.
Fig. 5 is the single chip machine controlling circuit figure of the described control constant current of the utility model all-in-one.
Fig. 6 is the power converting circuit figure of the described control constant current of the utility model all-in-one.
[specific embodiment]
The utility model provides a kind of control constant current all-in-one that is applied in the optical road lamp system; It has the function of controller for solar and constant current output simultaneously concurrently; Said control constant current all-in-one comprises a controller for solar and LED constant-current source; See also shown in Figure 4ly, said controller for solar carries out circuit control by single-chip microcomputer as control module, and it includes input rectifying filtering part, output rectifying and wave-filtering part, PWM voltage stabilizing control section, switch power conversion part.Wherein, The basic functional principle of said PWM voltage stabilizing control section is exactly that control circuit carries out closed loop feedback through the difference of controlled signal and reference signal under the situation that input voltage, inner parameter and external load change, and regulates the pulse width of main circuit switch break-over of device; Make that output voltage or current stabilization, the power-efficient of Switching Power Supply are high; Expectation can reach 90%～95%, output voltage, current stabilization, and the measure of design corresponding protection.The control circuit figure of said single-chip microcomputer please join shown in Figure 5.Said controller has the power supply translation function, and its power-switching circuit ginseng is shown in Figure 6, and it can boost the battery tension in the street lamp illumination system.
The utility model is to have adopted controller for solar to combine the two-in-one novel product of LED constant-current source driver; The function that discharges and recharges that possesses controller for solar; LED constant-current source part has also possessed defencive functions such as overvoltage, under-voltage, overcurrent, and half-power and switch lamp time management function.
In the optical road lamp illuminator; The described control constant current of the utility model all-in-one combines the common photovoltaic lighting system that forms of lamp stand, the battery that is positioned at lamp stand, LED light fixture and photovoltaic module; Said photovoltaic module reaches the electric current that produces in said control constant current all-in-one and the said battery through its inner photovoltaic cell, and said LED light fixture is through lead and said battery and the electric connection of said control constant current all-in-one.
In addition, because the photovoltaic module generating is difficult for, transformation efficiency is low, therefore how effectively to utilize electric energy to become focus, and in solar energy system, the transformation efficiency of LED constant-current source has just determined the utilization rate of electric energy.Traditional constant-current source efficient is about 85%--90%, and the utility model has adopted soft switch technique, and transformation efficiency is reached about 90%--95%, has improved power density, has dwindled the constant-current source volume, and making it to integrate with controller becomes possibility.
Said LED constant-current source is through improving operating frequency; Reduced the capacity of filter capacitor; Also therefore reduced ripple current, through π type filter circuit technology, the power input ripple of constant-current source has been reduced to below the 120mV again; Avoided having improved reliability of products because of ripple causes single-chip microcomputer work undesired too greatly.
The soft Starting Technology that this product has adopted soft switch technique and single-chip microcomputer to cooperate.Not only improved the transformation efficiency of product, also reached the gradually bright effect of turning on light, reduced the peak point current when starting simultaneously, improved reliability of products and antijamming capability through soft Starting Technology.
The rated voltage of the normally used battery of existing optical road lamp illuminator is 12V, if between controller for solar and the LED light fixture with the copper conductor of RV1.5, suppose that street lamp is high 10 meters, line length is that the resistance R of the copper conductor of 10X2 rice is 0.226 Ω so.If the power of light fixture is 60W, the electric current when voltage is 12V in the lead is 5A, so according to formula P=I
2R used up power on lead is 5.65W just.If but adopt the constant current all-in-one; After the controller for solar section is just boosted battery tension through the DC/DC converter, reach 48V and see the LED lamp holder need for electricity that the same power of driving is 60W (4 and 15 string) off, please cooperate and consult power-switching circuit figure shown in Figure 6 through constant-current source.At this moment, the electric current in the lead is about 1.25A, is 0.353W through calculating the power that loses on line.Reduce the loss of 5.297W by contrast, can make thus that limited electric weight obtains more abundant must the utilization in the battery, prolonged lighting time.
The above only is the most preferred embodiment of the utility model, is not the utility model is done any pro forma restriction, all belongs within the scope of the utility model technical scheme.Any those of ordinary skill in the art are not breaking away under the utility model technical scheme scope situation, utilize the method content of above-mentioned announcement that the utility model technical scheme is made many possible changes and modification, all belong to the scope of claims protection.
Claims (2)
1. control the constant current all-in-one for one kind; It is characterized in that: comprise controller for solar and LED constant-current source, said controller for solar is provided with a single-chip microcomputer and includes input rectifying filtering part, output rectifying and wave-filtering part, PWM voltage stabilizing control section, switch power conversion part.
2. optical road lamp illuminator; It is characterized in that: comprise a control constant current all-in-one, LED light fixture, lamp stand, the photovoltaic module that is positioned at the battery of said lamp stand and is positioned at the lamp stand top; Said photovoltaic module electrically connects through lead and said control constant current all-in-one; Said control constant current all-in-one comprises controller for solar and LED constant-current source, and said controller for solar is provided with a single-chip microcomputer and includes input rectifying filtering part, output rectifying and wave-filtering part, PWM voltage stabilizing control section, switch power conversion part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202972090U CN202253303U (en) | 2011-08-16 | 2011-08-16 | Constant current control all-in-one machine and photovoltaic street lamp lighting system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202972090U CN202253303U (en) | 2011-08-16 | 2011-08-16 | Constant current control all-in-one machine and photovoltaic street lamp lighting system with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202253303U true CN202253303U (en) | 2012-05-30 |
Family
ID=46114543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202972090U Expired - Fee Related CN202253303U (en) | 2011-08-16 | 2011-08-16 | Constant current control all-in-one machine and photovoltaic street lamp lighting system with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202253303U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102300373A (en) * | 2011-08-16 | 2011-12-28 | 北京远方动力可再生能源科技发展有限公司 | Constant-current-control all-in-one (AIO) machine and photovoltaic street lamp illumination system possessing same |
-
2011
- 2011-08-16 CN CN2011202972090U patent/CN202253303U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102300373A (en) * | 2011-08-16 | 2011-12-28 | 北京远方动力可再生能源科技发展有限公司 | Constant-current-control all-in-one (AIO) machine and photovoltaic street lamp illumination system possessing same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201893980U (en) | Multipath dimming light-emitting diode drive power supply | |
| CN101969727B (en) | High power LED driving power supply | |
| CN203363958U (en) | Hybrid energy storage type solar LED street lamp | |
| CN101626652A (en) | Dimmable LED constant current source driver with wide voltage range | |
| CN102665322A (en) | Driving power supply without electrolytic capacitor | |
| CN103037560B (en) | Automatic dimming emergency lamp | |
| CN202873150U (en) | Energy storage LED driver system | |
| CN202514138U (en) | Drive power supply for non-electrolytic capacitor | |
| CN201479432U (en) | Dimmable LED constant current source driver with wide voltage range | |
| CN201396582Y (en) | Portable illumination device | |
| CN103024993A (en) | Energy-saving outdoor illumination controlling system and controlling method | |
| CN201893979U (en) | High-power efficient constant-current light-emitting diode (LED) driver | |
| CN202253303U (en) | Constant current control all-in-one machine and photovoltaic street lamp lighting system with same | |
| CN201142770Y (en) | Uninterrupted LED illumination driver | |
| CN203734880U (en) | High voltage integration AC LED multistage linear drive device | |
| CN201623887U (en) | LED power source | |
| CN201803292U (en) | Solar light-emitting diode (LED) yard lamp | |
| CN201298940Y (en) | LED light fixture driving power supply | |
| CN204539556U (en) | The switch dimming drive circuit of Width funtion LED and LED dimming control system | |
| CN204157104U (en) | The uninterrupted emergency lighting system of subway LED | |
| CN202587529U (en) | Pulse width modulation (PWM) dimming circuit for high-voltage direct current centralized power supply light emitting diode (LED) constant current source | |
| CN102300373A (en) | Constant-current-control all-in-one (AIO) machine and photovoltaic street lamp illumination system possessing same | |
| CN201919193U (en) | Uninterrupted illuminating system | |
| CN202587483U (en) | High-efficiency LED drive circuit | |
| CN201928482U (en) | Driving power for LED (light-emitting diode) lamp and LED lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100086 No. 111, ideal building, Haidian District, Beijing, Zhichun Road 5325-5326 Patentee after: BEIJING REMOTE POWER RENEWABLE ENERGY TECHNOLOGY COMPANY Address before: 100086 No. 111, ideal building, Haidian District, Beijing, Zhichun Road 5325-5326 Patentee before: Beijing Remote Power Renewable Energy Technology Developing Co., Ltd. |
|
| DD01 | Delivery of document by public notice |
Addressee: BEIJING REMOTE POWER RENEWABLE ENERGY TECHNOLOGY COMPANY Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: BEIJING REMOTE POWER RENEWABLE ENERGY TECHNOLOGY Co. Document name: Notification of Termination of Patent Right |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20190816 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |