CN103379703A - System for prolonging service life of high-power LED lamp - Google Patents
System for prolonging service life of high-power LED lamp Download PDFInfo
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- CN103379703A CN103379703A CN2012101304433A CN201210130443A CN103379703A CN 103379703 A CN103379703 A CN 103379703A CN 2012101304433 A CN2012101304433 A CN 2012101304433A CN 201210130443 A CN201210130443 A CN 201210130443A CN 103379703 A CN103379703 A CN 103379703A
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- led lamp
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- mcu control
- control module
- service life
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- 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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention provides a system for prolonging the service life of a high-power LED lamp. The system for prolonging the service life of the high-power LED lamp comprises a PFC module and a DC-DC module which is connected with the PFC module. The DC-DC module is connected with a LED lamp load. The system for prolonging the service life of the high-power LED lamp is characterized in that a digital temperature sensor and a cooling fan which are connected with an MCU control module are arranged outside the LED lamp load. The MCU control module is connected with a DIM pin of the DC-DC module. The MCU control module achieves the power adjustable function through adjustment of the output current of the DC-DC module by the MCU control module. The system for prolonging the service life of the high-power LED lamp has the advantages that PWM intelligent speed adjustment is conducted on the cooling fan according to the various temperature states of the LED lamp, accumulation of dust is effectively reduced, normal operation of the cooling fan is guaranteed, the cooling requirement is met, and therefore the service life of the high-power LED lamp is prolonged.
Description
Technical field
The present invention relates to a kind of LED street lamp control system, specifically a kind of prolongation high-powered LED lamp life-span system.
Background technology
The LED lighting technology is the lighting technology of development in recent years a kind of low-power consumption of getting up, high brightness, environmental protection, and high-power LED street lamp has been started the beginning of LED illumination cause.Compare under equal illumination with the conventional high-tension sodium vapor lamp, can save more than 60%.As everyone knows, the LED lamp is the same with conventional light source, duration of work can produce heat, the LED lamp is to add under the energy, the radiation recombination in electronics and hole and the electricity that occurs cause effect 30 one 35% of energy are converted into luminous energy, but not the lattice vibration that radiation recombination occurs is heat energy with the Conversion of Energy of all the other 65-70%.LED is very sensitive illuminating part to temperature, in the lower situation of working temperature, just can obtain high reliable optical index, could satisfy the usually instructions for use of illumination.In order to make the LED lamp can adapt to the needs of general illumination, the problem of solid-state illumination light source unit light flux in the urgent need to address, the increase of LED lamp unit light flux and every unit caloric value is significantly increased, and the rolling up so that how LED lamp chip decay of luminescence and lose use value, particularly high-power LED lamp solve heat radiation is a present large technical barrier of heat.Therefore current high-power LED lamp generally adopts the active heat removal mode, namely use fan cooling, and fan work is in full-speed state, because the LED lamp is operated under the large environment of dust, have a strong impact on the life-span of fan, when fan can't rotate because of dust, the LED lamp can't work because of heat dissipation problem, or even damaged.
Summary of the invention
The object of the present invention is to provide a kind of various state of temperatures for the LED lamp, radiator fan is carried out the intelligent speed-regulating of PWM, effectively reduce the accumulation of dust, guarantee the prolongation high-powered LED lamp life-span system of the normal operation of radiator fan
The present invention is realized by the following technical solutions: a kind of prolongation high-powered LED lamp life-span system, it comprises the PFC module, and connected DC-DC module, the DC-DC module is connected with the LED lamp load, it is characterized in that: described LED lamp load is provided with digital temperature sensor and the radiator fan that is connected with the MCU control module outward.
Described MCU control module is connected with DC-DC module DIM pin, and the MCU control module is regulated by its output current to the DC-DC module, reaches the adjustable function of power.
Described MCU control module is provided with PFC modular power abnormality detection warning function.
Described MCU control module is provided with Intelligent fan controller, can control radiating fan rotation speed according to the temperature that digital temperature sensor detects.
The invention has the beneficial effects as follows: for the various state of temperatures of LED lamp, radiator fan is carried out the intelligent speed-regulating of PWM, effectively reduce the accumulation of dust, guarantee that radiator fan normally moves, satisfy the heat radiation requirement, thereby prolong the high-powered LED lamp life-span.
Description of drawings
Figure l is operation principle schematic diagram of the present invention.
Embodiment
The present invention is further elaborated below in conjunction with accompanying drawing.As shown in the figure, a kind of prolongation high-powered LED lamp life-span system, it comprises PFC module 1, and connected DC-DC module 2, DC-DC module 2 is connected with LED lamp load 3, it is characterized in that: described LED lamp load 3 outer digital temperature sensor 5 and the radiator fans 4 that are connected with MCU control module 7 that are provided with.
Described MCU control module 7 is connected with the DIM pin of DC-DC module, and MCU control module 7 is regulated by its output current to DC-DC module 2, reaches the adjustable function of power.
Described MCU control module 7 is provided with PFC module 1 power abnormality detection warning function.
Described MCU control module 7 is provided with Intelligent fan controller, can control radiator fan 4 rotating speeds according to the temperature that digital temperature sensor 5 detects.
Operation principle: in light source driver module, produce main power source and auxiliary power by PFC module 1 circuit, main power source is used for the DC-DC module to be used to the LED lamp, and auxiliary power is used for the power supply of MCU control module 7; MCU carries out abnormality detection to the DC-DC module, when appearance is unusual, initiatively turns off output, guarantees that led light source is not damaged.With digital temperature sensor 5, its temperature information sends MCU to and carries out sampling and processing at led light source; After led light source reached uniform temperature, MCU utilized the mode of PWM to open radiator fan 4 by fan governor; When light-source temperature continued to rise, pwm signal increased positive duty ratio, thereby improved the rotating speed of fan; When light-source temperature descended to some extent, pwm signal reduced positive duty ratio, thereby reduced the rotating speed of fan, made led light source be stabilized in the temperature of certain setting.This control mode effectively reduces the full speed rotation time of fan, thereby reduces the accumulation of dust, thereby prolongs the life-span of fan and the life-span of LED lamp.
After the LED lamp is through a rapid lapse of time job, the dust of accumulation can't maximal rate rotate fan, cause the led light source temperature constantly to rise, in the time of can't being stable at sweet the temperature of setting, MCU uses the light modulation pin of DIM to reduce the power stage of DC-DC module, thereby its temperature of light source is descended to some extent, and be stable at the temperature of certain setting.The working life of the LED lamp integral body that this working method effectively prolongs.
Claims (4)
1. one kind prolongs high-powered LED lamp life-span system, it comprises PFC module (1), and connected DC-DC module (2), DC-DC module (2) is connected with LED lamp load (3), it is characterized in that: outer digital temperature sensor (5) and the radiator fan (4) that is connected with MCU control module (7) that be provided with of described LED lamp load (3).
2. prolongation high-powered LED lamp according to claim 1 life-span system, it is characterized in that: described MCU control module (7) is connected with DC-DC module (2) DIM pin, MCU control module (7) is regulated by its output current to DC-DC module (2), reaches the adjustable function of power.
3. prolongation high-powered LED lamp according to claim 1 life-span system, it is characterized in that: described MCU control module (7) is provided with PFC module (1) power abnormality detection warning function.
4. prolongation high-powered LED lamp according to claim 1 life-span system, it is characterized in that: described MCU control module (7) is provided with Intelligent fan controller, can control radiator fan (4) rotating speed according to the temperature that digital temperature sensor (5) are detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101304433A CN103379703A (en) | 2012-04-28 | 2012-04-28 | System for prolonging service life of high-power LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101304433A CN103379703A (en) | 2012-04-28 | 2012-04-28 | System for prolonging service life of high-power LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103379703A true CN103379703A (en) | 2013-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2012101304433A Pending CN103379703A (en) | 2012-04-28 | 2012-04-28 | System for prolonging service life of high-power LED lamp |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080082047A (en) * | 2007-03-07 | 2008-09-11 | 라이트사이언스 주식회사 | Road lighting device using solar cell |
| CN202125746U (en) * | 2011-05-18 | 2012-01-25 | 何忠亮 | Active radiating high-power Light-Emitting Diode (LED) lamp |
| CN102413619A (en) * | 2011-12-31 | 2012-04-11 | 重庆东灵网络信息技术有限责任公司 | Air-cooling radiation LED (light emitting diode) lamp |
| CN102427636A (en) * | 2011-09-14 | 2012-04-25 | 龙腾照明集团有限公司 | LED circuit control system |
| CN202721861U (en) * | 2012-04-28 | 2013-02-06 | 广东凯乐斯光电科技有限公司 | System capable of prolongating life of large-power LED lamp |
-
2012
- 2012-04-28 CN CN2012101304433A patent/CN103379703A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080082047A (en) * | 2007-03-07 | 2008-09-11 | 라이트사이언스 주식회사 | Road lighting device using solar cell |
| CN202125746U (en) * | 2011-05-18 | 2012-01-25 | 何忠亮 | Active radiating high-power Light-Emitting Diode (LED) lamp |
| CN102427636A (en) * | 2011-09-14 | 2012-04-25 | 龙腾照明集团有限公司 | LED circuit control system |
| CN102413619A (en) * | 2011-12-31 | 2012-04-11 | 重庆东灵网络信息技术有限责任公司 | Air-cooling radiation LED (light emitting diode) lamp |
| CN202721861U (en) * | 2012-04-28 | 2013-02-06 | 广东凯乐斯光电科技有限公司 | System capable of prolongating life of large-power LED lamp |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131030 |