CN202335027U - Intelligent light-emitting diode (LED) illuminating system having automatic overheating protection - Google Patents
Intelligent light-emitting diode (LED) illuminating system having automatic overheating protection Download PDFInfo
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- CN202335027U CN202335027U CN2011204983865U CN201120498386U CN202335027U CN 202335027 U CN202335027 U CN 202335027U CN 2011204983865 U CN2011204983865 U CN 2011204983865U CN 201120498386 U CN201120498386 U CN 201120498386U CN 202335027 U CN202335027 U CN 202335027U
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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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Abstract
An intelligent LED illuminating system having automatic overheating protection is characterized by comprising a power supply unit, a temperature detection unit, a control unit, a driving unit and a LED illuminating unit, wherein the power supply unit is connected with the temperature detection unit, the control unit, the driving unit and the LED illuminating unit; a signal output end of the temperature detection unit is connected with a signal input end of the control unit; a driving signal output end of the control unit is connected with a driving signal input end of the driving unit; and an output end of the driving unit is connected with an input end of the LED illuminating unit. The intelligent LED illuminating system having automatic overheating protection is applicable to indoor illuminating systems such as desk lamps and the like and can control the temperature or turn off the lights at the fixed time.
Description
Technical field
The present technique scheme belongs to room lighting and control technology field, specifically is a kind of intelligent LED illuminator with overheated automatic protection.
Background technology
The LED illumination is along with development of times, and its price is more and more lower, and performance is become better and better.LED is as must throw light on the in the world generally approval on boundary of light source of the 4th generation.It has lot of advantages such as energy-saving and environmental protection, light are controlled, solidification, long-life.But LED can produce heat when illumination.Can shorten the useful life of LED or damage LED if heat is too high.
Summary of the invention
In order to solve the problems referred to above that exist in the prior art, the utility model proposes a kind of intelligent LED illuminator with overheated automatic protection, and concrete technical scheme is following:
A kind of intelligent LED illuminator with overheated automatic protection is characterized in that comprising power subsystem, temperature detecting unit, control unit, driver element and LED luminescence unit; Said power subsystem connects temperature detecting unit, control unit, driver element and LED luminescence unit; The signal output part of said temperature detecting unit connects the signal input part of control unit; The drive signal output of control unit connects the driving signal input of driver element; The output of said driver element connects the input of LED luminescence unit.
Said control unit is to be the circuit of core with single-chip microcomputer (monolithic computer).
Said LED luminescence unit comprises one or more LED, and this LED is connected on the heat-conducting substrate; The temperature of said temperature detecting unit induction heat-conducting substrate.
Said LED luminescence unit comprises a plurality of LED, and each LED connects successively, and the anode of first LED is the anode of LED luminescence unit, and the negative electrode of last LED is the negative electrode of LED luminescence unit.
Said temperature detecting unit comprises temperature sensor and comparator; The output of said temperature sensor connects a comparison signal input of comparator, and another comparison signal input of comparator connects constant pressure source (this constant pressure source is taken from power subsystem); The output of comparator is the signal output part of temperature detecting unit; The temperature of the said heat-conducting substrate of said temperature sensor senses.
Said driver element comprises transistor; Said transistorized quantity has a plurality of, and the drive signal output of said control unit connects each transistorized base stage respectively; Each transistorized collector and emitter connects the negative electrode and the ground of said LED luminescence unit respectively.In the time of control, through the quantity of turn-on transistor, change the operating current of LED luminescence unit, adjust the brightness of LED
Said power subsystem be AC/DC or DC/DC power supply.
The power subsystem of native system is given other each cell operation electric currents respectively; Temperature detecting unit is made up of temperature sensor, comparator etc., produces temperature signal and sends monolithic computer to; Monolithic computer mainly is to carry out sequential operation, produces control signal and sends driver element to; Driver element produces Control current and sends luminescence unit to; Luminescence unit changes luminous quantity or closes luminous under the control of driver element.Thereby the purpose that reaches temperature control or turn off the light.
The present invention is applicable to interior lighting systems such as desk lamp.The effect that can play temperature control or regularly turn off the light.
Accompanying drawing and drawing explanation thereof
Accompanying drawing 1 is a present technique scheme theory diagram;
Accompanying drawing 2 is the circuit theory diagrams in the specific embodiment;
Among Fig. 2, power subsystem 1, temperature detecting unit 2, monolithic computer unit 3, output driver element 4, LED luminescence unit 5.
Embodiment
Be described further below in conjunction with 1,2 pairs of the utility model of accompanying drawing.
With reference to figure 1, a kind of intelligent LED illuminator with overheated automatic protection comprises power subsystem, temperature detecting unit, control unit, driver element and LED luminescence unit; Said power subsystem connects temperature detecting unit, control unit, driver element and LED luminescence unit; The signal output part of said temperature detecting unit connects the signal input part of control unit; The drive signal output of control unit connects the driving signal input of driver element; The output of said driver element connects the input of LED luminescence unit.
Said control unit is to be the circuit of core with the single-chip microcomputer.Said LED luminescence unit comprises one or more LED, and this LED is connected on the heat-conducting substrate; The temperature of said temperature detecting unit induction heat-conducting substrate.Said LED luminescence unit comprises a plurality of LED, and each LED connects successively, and the anode of first LED is the anode of LED luminescence unit, and the negative electrode of last LED is the negative electrode of LED luminescence unit.Said temperature detecting unit comprises temperature sensor and comparator; The output of said temperature sensor connects a comparison signal input of comparator, and another comparison signal input of comparator connects constant pressure source; The output of comparator is the signal output part of temperature detecting unit; The temperature of the said heat-conducting substrate of said temperature sensor senses.Said driver element comprises transistor; Said transistorized quantity has a plurality of, and the drive signal output of said control unit connects each transistorized base stage respectively; Each transistorized collector and emitter connects the negative electrode and the ground of said LED luminescence unit respectively.Said power subsystem be AC/DC or DC/DC power supply.
With reference to figure 2, in this example,
Power subsystem mainly is made up of voltage stabilizing didoe D1, electrochemical capacitor E1, capacitor C 1, resistance R 1, generation+5V stabilized voltage power supply.
The LED luminescence unit mainly is made up of LED D3, D4, D5, and heat-conducting substrate is an aluminium sheet.
Through to mcu programming, control three transistorized switches, can realize following effect:
1, when the temperature on the LED aluminium base surpasses 60 ℃, LED reduces by 1/3rd electric current, works after ten minutes; If when temperature still surpassed 60 ℃, LED reduced by 1/3rd electric current again, after working ten minutes again; If when temperature still surpasses 60 ℃, close all LED operating currents.
2, normal working hours was above 5 hours.Closed LED operating current 1/3rd in per ten minutes, up to closing all LED operating currents.
The overtemperature protection problem:
When the temperature on the LED aluminium base surpassed 60 ℃, LED reduced by 1/3rd electric current, works after ten minutes; If when temperature still surpassed 60 ℃, LED reduced by 1/3rd electric current again, after working ten minutes again; If when temperature still surpasses 60 ℃, close all LED operating currents.
Regularly turn off the light:
System is after work 5 hours, if do not need illumination, system will progressively reduce brightness of illumination, to the last close output.
Claims (7)
1. the intelligent LED illuminator with overheated automatic protection is characterized in that comprising power subsystem, temperature detecting unit, control unit, driver element and LED luminescence unit; Said power subsystem connects temperature detecting unit, control unit, driver element and LED luminescence unit; The signal output part of said temperature detecting unit connects the signal input part of control unit; The drive signal output of control unit connects the driving signal input of driver element; The output of said driver element connects the input of LED luminescence unit.
2. the intelligent LED illuminator with overheated automatic protection according to claim 1 is characterized in that said control unit is is the circuit of core with the single-chip microcomputer.
3. the intelligent LED illuminator with overheated automatic protection according to claim 1 is characterized in that said LED luminescence unit comprises one or more LED, and this LED is connected on the heat-conducting substrate; The temperature of said temperature detecting unit induction heat-conducting substrate.
4. the intelligent LED illuminator with overheated automatic protection according to claim 1; It is characterized in that said LED luminescence unit comprises a plurality of LED; Each LED connects successively, and the anode of first LED is the anode of LED luminescence unit, and the negative electrode of last LED is the negative electrode of LED luminescence unit.
5. the intelligent LED illuminator with overheated automatic protection according to claim 1 is characterized in that said temperature detecting unit comprises temperature sensor and comparator; The output of said temperature sensor connects a comparison signal input of comparator, and another comparison signal input of comparator connects constant pressure source; The output of comparator is the signal output part of temperature detecting unit; The temperature of the said heat-conducting substrate of said temperature sensor senses.
6. according to claim 3 or 4 described intelligent LED illuminators, it is characterized in that said driver element comprises transistor with overheated automatic protection; Said transistorized quantity has a plurality of, and the drive signal output of said control unit connects each transistorized base stage respectively; Each transistorized collector and emitter connects the negative electrode and the ground of said LED luminescence unit respectively.
7. the intelligent LED illuminator with overheated automatic protection according to claim 1, what it is characterized in that said power subsystem is AC/DC or DC/DC power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204983865U CN202335027U (en) | 2011-12-05 | 2011-12-05 | Intelligent light-emitting diode (LED) illuminating system having automatic overheating protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204983865U CN202335027U (en) | 2011-12-05 | 2011-12-05 | Intelligent light-emitting diode (LED) illuminating system having automatic overheating protection |
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| CN202335027U true CN202335027U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204983865U Expired - Fee Related CN202335027U (en) | 2011-12-05 | 2011-12-05 | Intelligent light-emitting diode (LED) illuminating system having automatic overheating protection |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103582264A (en) * | 2013-11-16 | 2014-02-12 | 中航华东光电有限公司 | High lighting efficiency LED drive system and method |
| CN105578652A (en) * | 2016-01-18 | 2016-05-11 | 上海康耐司信号设备有限公司 | Over-temperature protection circuit and system for LED lamp |
| CN106028531A (en) * | 2016-06-30 | 2016-10-12 | 广州市浩洋电子有限公司 | Adaptive control system and control method for temperature of LED stage lamp |
-
2011
- 2011-12-05 CN CN2011204983865U patent/CN202335027U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103582264A (en) * | 2013-11-16 | 2014-02-12 | 中航华东光电有限公司 | High lighting efficiency LED drive system and method |
| CN105578652A (en) * | 2016-01-18 | 2016-05-11 | 上海康耐司信号设备有限公司 | Over-temperature protection circuit and system for LED lamp |
| CN106028531A (en) * | 2016-06-30 | 2016-10-12 | 广州市浩洋电子有限公司 | Adaptive control system and control method for temperature of LED stage lamp |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20121205 |