CN102413602A - An intelligent temperature limiting protection device for LED street lamps - Google Patents
An intelligent temperature limiting protection device for LED street lamps Download PDFInfo
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- CN102413602A CN102413602A CN2011102075583A CN201110207558A CN102413602A CN 102413602 A CN102413602 A CN 102413602A CN 2011102075583 A CN2011102075583 A CN 2011102075583A CN 201110207558 A CN201110207558 A CN 201110207558A CN 102413602 A CN102413602 A CN 102413602A
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- led
- temperature
- mcu controller
- lamp
- street lamp
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- 230000001105 regulatory effect Effects 0.000 claims description 5
- 239000011324 bead Substances 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 230000007774 longterm Effects 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
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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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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention relates to an intelligent temperature limiting protection device of an LED street lamp, in particular to an LED lamp bead temperature limiting protection device and an automatic switch temperature limiting protection device, which comprise a power supply circuit, an LED driving circuit and an MCU controller, wherein the LED driving circuit and the MCU controller are connected with a plurality of LED lamps, and the MCU controller is respectively connected with an LED lamp temperature sensor which can detect the temperature change of an LED lamp body and transmit signals to the MCU controller to adjust the brightness of the plurality of LED lamps and an LED lamp switch temperature sensor which can detect the temperature change of an LED lamp source switch and transmit signals to the MCU controller to adjust the brightness of the plurality of LED lamps. The invention aims to overcome the defects of the prior art and provide an intelligent temperature limiting protection device for an LED street lamp, which can prevent an LED lamp from burning chips due to overhigh temperature.
Description
[technical field]
The utility model relates to a kind of intelligent protected by temperature limitation device of LED street lamp, especially relates to the automatic protected by temperature limitation device of LED lamp pearl protected by temperature limitation device and switch.
[background technology]
Street lamp is the chief component of city illumination engineering, and at night, the illumination of street lamp plays important effect, but street lamp is when playing an important role, and is also consuming a large amount of energy.Though street lamp is changed to the LED illumination by traditional high-pressure sodium lamp gradually; But the common LED street lamp has just improved the conversion efficiency of electric energy to luminous energy; The luminescent wafer of LED lamp is prone to cause light emission rate low under hot environment because stronger temperature characterisitic is arranged, and very causes damage; It is too high and the problem of scaling loss occurs in long-term work, to occur Yin Wendu easily.Simultaneously, the Switching Power Supply of LED lamp is not paid close attention to the other side's situation mutually owing to independent fully with LED lamp pearl, under condition of overhigh temperature, wears out very to cause easily yet and burns.
The utility model is exactly to make in view of the situation.
[utility model content]
The utility model has overcome the deficiency of prior art, and a kind of LED street lamp intelligence protected by temperature limitation device that can avoid the too high and scaling loss chip of LED lamp Yin Wendu is provided.
The utility model adopts following technical scheme for solving the problems of the technologies described above:
A kind of intelligent protected by temperature limitation device of LED street lamp; Include power circuit and led drive circuit that is connected with power circuit and MCU controller; On led drive circuit, be connected with the LED multi-path lamp, it is characterized in that on described MCU controller, being connected with respectively can detect LED lamp body variation of temperature and with signal send to the MCU controller with the LED light temperature transducer of regulating the brightness of LED multi-path lamp with can detect LED lamp source switch variations in temperature and send signal to the MCU controller to regulate the LED lamp source switch temperature sensor of LED multi-path lamp brightness.
The intelligent protected by temperature limitation device of aforesaid a kind of LED street lamp is characterized in that described LED light temperature transducer comprises that thermistor is arranged.
The intelligent protected by temperature limitation device of aforesaid a kind of LED street lamp is characterized in that described LED lamp source switch temperature sensor includes thermal module.
The intelligent protected by temperature limitation device of aforesaid a kind of LED street lamp; It is characterized in that described led drive circuit includes PWM pulse-width modulation circuit group and constant-current control circuit group; The input of described PWM pulse-width modulation circuit group links to each other with the output of MCU controller, and the output of described constant-current control circuit group links to each other with the input of LED multi-path lamp.
The intelligent protected by temperature limitation device of aforesaid a kind of LED street lamp is characterized in that described PWM pulse-width modulation circuit includes the octuple anti-phase buffer module that can the signal that the MCU controller sends be transferred to ternary output.
The intelligent protected by temperature limitation device of aforesaid a kind of LED street lamp is characterized in that described constant-current control circuit group includes constant flow module.
The intelligent protected by temperature limitation device of aforesaid a kind of LED street lamp is characterized in that on described MCU controller, being connected with the fan circuit of its heat that can leave fast.
The intelligent protected by temperature limitation device of aforesaid a kind of LED street lamp is characterized in that described MCU controller is a MCU control chip.
The utility model compared with prior art has following advantage:
The utility model is employed on the MCU controller and is connected with temperature sensor; Temperature sensor is passed to the MCU controller with the temperature real time data of the LED lamp body that detects; The MCU controller is through produce the brightness of pwm signal adjustment LED multi-path lamp at once after the analysis and judgement, this temperature sensor is installed in is close to LED lamp pearl on the aluminium base, can reach to make the purpose of LED lamp long-term work under suitable limiting temperature; Avoid the too high scaling loss led chip of temperature, reduced the fault of LED lamp.
LED lamp power supply temperature sensor is passed to the MCU controller with the Switching Power Supply temperature real time data that detects; The MCU controller is through produce the brightness of pwm signal adjustment LED multi-path lamp at once after the analysis and judgement; The minimizing power source loads reduces temperature, can reach to make Switching Power Supply be operated in the purpose under the suitable limiting temperature; Avoid the too high scaling loss Switching Power Supply of temperature, reduced the fault of Switching Power Supply.
This protective device is when temperature is high, and PWM duty ratio (automatic current limiting) that can intelligent regulating impulse electric current is treated to recover running current again after temperature descends to reduce temperature, has avoided the too high scaling loss to LED lamp and LED lamp source switch of temperature, the minimizing fault.
[description of drawings]
Fig. 1 is the utility model circuit frame figure;
Fig. 2 is the utility model circuit diagram;
Fig. 3 is the utility model circuit diagram.
[embodiment]
Below in conjunction with accompanying drawing the utility model is elaborated:
A kind of intelligent electric-saving device of LED street lamp; Include power circuit 1 and led drive circuit 2 that is connected with power circuit 1 and MCU controller 3; On led drive circuit 2, be connected with LED multi-path lamp 4, on described MCU controller 3, also be connected with the variation that can detect ambient temperature and with signal send to MCU controller 3 with the LED light temperature transducer 5 of regulating 4 brightness of LED multi-path lamp with can detect LED lamp source switch variations in temperature and send signal to MCU controller 3 to regulate the LED lamp source switch temperature sensor 6 of LED multi-path lamp 4 brightness.
Described LED light temperature transducer 5 comprises thermistor RT.Thermistor RT is installed on the aluminium base, can make the long-term work of LED lamp ability under suitable limiting temperature through thermistor RT, has avoided the too high scaling loss led chip of temperature, reduces the fault of LED lamp.
Described LED lamp source switch temperature sensor 6 comprises thermal module U19.Thermal module U19 is installed on the fin of Switching Power Supply, can make the Switching Power Supply long-term work under suitable limiting temperature through thermal module U19, has avoided the too high damage Switching Power Supply of temperature, reduces the fault of Switching Power Supply.
Described led drive circuit 2 includes PWM pulse-width modulation circuit group 21 and constant-current control circuit group 22; The input of described PWM pulse-width modulation circuit group 21 links to each other with the output of MCU controller 3, and the output of described constant-current control circuit group 22 links to each other with the input of LED multi-path lamp 4.Constant-current control circuit can avoid the electric current of PWM pulse-width modulation circuit 21 to exceed maximum rating, influences the reliability of LED multi-path lamp 4.
Described PWM pulse-width modulation circuit 21 includes octuple anti-phase buffer module U3, the U4 that can the signal that MCU controller 3 sends be transferred to ternary output.
Described constant-current control circuit group 22 includes constant flow module U7～U18.
Led drive circuit 2 utilizes single-chip microcomputer to produce pwm signal, drives LED multi-path lamp 4 and throws light on, through regulating the duty ratio of pwm signal, the brightness that just can transfer LED.
On described MCU controller 3, be connected with the fan circuit 7 of its heat that can leave fast.
Described MCU controller 3 is a MCU control chip.
Control the brightness of LED multi-path lamp 4 through the detection of LED light temperature transducer 5, the intelligence computation of MCU controller; When the temperature of aluminium base is high; The brightness of LED lamp is dimmed; Thereby make the LED lamp can reach the purpose of long-term work under suitable limiting temperature, avoided the too high scaling loss led chip of temperature, reduce the fault of LED lamp.
The working temperature of the detection through LED lamp source switch temperature sensor 6, the intelligence computation control switching of MCU controller; When the temperature of fin is high; The brightness of LED lamp is dimmed; Thereby make Switching Power Supply can reach the purpose of long-term work under suitable limiting temperature, avoided the too high damage Switching Power Supply of temperature, reduce the fault of Switching Power Supply.
Claims (8)
1. the intelligent protected by temperature limitation device of a LED street lamp; Include power circuit (1) and led drive circuit (2) that is connected with power circuit (1) and MCU controller (3); On led drive circuit (2), be connected with LED multi-path lamp (4), it is characterized in that on described MCU controller (3), being connected with respectively can detect LED lamp body variation of temperature and with signal send to MCU controller (3) with the LED light temperature transducer (5) of regulating LED multi-path lamp (4) brightness with can detect LED lamp source switch variations in temperature and send signal the LED lamp source switch temperature sensor (6) of MCU controller (3) to the brightness of adjusting LED multi-path lamp (4).
2. the intelligent protected by temperature limitation device of a kind of LED street lamp according to claim 1 is characterized in that described LED light temperature transducer (5) includes thermistor (RT).
3. the intelligent protected by temperature limitation device of a kind of LED street lamp according to claim 1 is characterized in that described LED lamp source switch temperature sensor (6) includes thermal module (U19).
4. the intelligent protected by temperature limitation device of a kind of LED street lamp according to claim 1; It is characterized in that described led drive circuit (2) includes PWM pulse-width modulation circuit group (21) and constant-current control circuit group (22); The input of described PWM pulse-width modulation circuit group (21) links to each other with the output of MCU controller (3), and the output of described constant-current control circuit group (22) links to each other with the input of LED multi-path lamp (4).
5. the intelligent protected by temperature limitation device of a kind of LED street lamp according to claim 4 is characterized in that described PWM pulse-width modulation circuit (21) includes the octuple anti-phase buffer module (U3, U4) that can the signal that send MCU controller (3) be transferred to ternary output.
6. the intelligent protected by temperature limitation device of a kind of LED street lamp according to claim 4 is characterized in that described constant-current control circuit group (22) includes constant flow module (U7～U18).
7. the intelligent protected by temperature limitation device of a kind of LED street lamp according to claim 1 is characterized in that on described MCU controller (3), being connected with the fan circuit (7) of its heat that can leave fast.
8. the intelligent protected by temperature limitation device of a kind of LED street lamp according to claim 1 is characterized in that described MCU controller (3) is a MCU control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102075583A CN102413602A (en) | 2011-07-23 | 2011-07-23 | An intelligent temperature limiting protection device for LED street lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102075583A CN102413602A (en) | 2011-07-23 | 2011-07-23 | An intelligent temperature limiting protection device for LED street lamps |
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| Publication Number | Publication Date |
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| CN102413602A true CN102413602A (en) | 2012-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102075583A Pending CN102413602A (en) | 2011-07-23 | 2011-07-23 | An intelligent temperature limiting protection device for LED street lamps |
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| CN (1) | CN102413602A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103619106A (en) * | 2013-12-04 | 2014-03-05 | 昆山泰顺自动化设备有限公司 | Street lamp wireless temperature control system |
| CN103781228A (en) * | 2012-10-24 | 2014-05-07 | 深圳市鑫田威尔科技有限公司 | LED industrial and mineral lamp and circuit control method thereof |
| CN110191537A (en) * | 2019-05-27 | 2019-08-30 | 常州星宇车灯股份有限公司 | Vehicle lamp over-temperature protection system, vehicle having the same, and vehicle lamp over-temperature protection method |
| CN112594576A (en) * | 2020-12-21 | 2021-04-02 | 南京弹正电子科技有限公司 | Intelligent illuminating system for underground roadway of non-coal mine |
Citations (6)
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| CN201418190Y (en) * | 2009-04-15 | 2010-03-03 | 舟山浩德光电科技有限公司 | LED lighting control system |
| CN201549868U (en) * | 2009-11-21 | 2010-08-11 | 杭州比特信息技术有限公司 | Low-voltage switch intelligent controller |
| CN201750598U (en) * | 2010-07-23 | 2011-02-16 | 深圳市智敏科技有限公司 | Wireless intelligent street lamp controller and its management system |
| CN201774714U (en) * | 2010-07-30 | 2011-03-23 | 湖州海振电子科技有限公司 | Intelligent automatic temperature control high-power LED street lamp control circuit |
| CN201797629U (en) * | 2010-07-12 | 2011-04-13 | 年胜塑胶工业有限公司 | An improved light source control device |
| CN202153798U (en) * | 2011-07-23 | 2012-02-29 | 李鸿 | An automatic intelligent temperature limiting protection device for LED street lamps |
-
2011
- 2011-07-23 CN CN2011102075583A patent/CN102413602A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201418190Y (en) * | 2009-04-15 | 2010-03-03 | 舟山浩德光电科技有限公司 | LED lighting control system |
| CN201549868U (en) * | 2009-11-21 | 2010-08-11 | 杭州比特信息技术有限公司 | Low-voltage switch intelligent controller |
| CN201797629U (en) * | 2010-07-12 | 2011-04-13 | 年胜塑胶工业有限公司 | An improved light source control device |
| CN201750598U (en) * | 2010-07-23 | 2011-02-16 | 深圳市智敏科技有限公司 | Wireless intelligent street lamp controller and its management system |
| CN201774714U (en) * | 2010-07-30 | 2011-03-23 | 湖州海振电子科技有限公司 | Intelligent automatic temperature control high-power LED street lamp control circuit |
| CN202153798U (en) * | 2011-07-23 | 2012-02-29 | 李鸿 | An automatic intelligent temperature limiting protection device for LED street lamps |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103781228A (en) * | 2012-10-24 | 2014-05-07 | 深圳市鑫田威尔科技有限公司 | LED industrial and mineral lamp and circuit control method thereof |
| CN103619106A (en) * | 2013-12-04 | 2014-03-05 | 昆山泰顺自动化设备有限公司 | Street lamp wireless temperature control system |
| CN110191537A (en) * | 2019-05-27 | 2019-08-30 | 常州星宇车灯股份有限公司 | Vehicle lamp over-temperature protection system, vehicle having the same, and vehicle lamp over-temperature protection method |
| CN112594576A (en) * | 2020-12-21 | 2021-04-02 | 南京弹正电子科技有限公司 | Intelligent illuminating system for underground roadway of non-coal mine |
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Application publication date: 20120411 |