CN102889498A - LED (Light Emitting Diode) streetlamp for radiating by utilizing semiconductor refrigerating chip - Google Patents
LED (Light Emitting Diode) streetlamp for radiating by utilizing semiconductor refrigerating chip Download PDFInfo
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- CN102889498A CN102889498A CN2011102012495A CN201110201249A CN102889498A CN 102889498 A CN102889498 A CN 102889498A CN 2011102012495 A CN2011102012495 A CN 2011102012495A CN 201110201249 A CN201110201249 A CN 201110201249A CN 102889498 A CN102889498 A CN 102889498A
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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
The invention relates to an LED (Light Emitting Diode) streetlamp for radiating by utilizing a semiconductor refrigerating chip. An automatic voltage-adjusting circuit, an automatic turning-on circuit, a lamp socket voltage monitoring circuit and a semiconductor refrigerating circuit are integrated and co-act on a high-power LED streetlamp. The long-lasting problem of ultrahigh temperature of lamp elements of the high-power LED streetlamp is effectively solved. The energy-saving and durable characteristics of the high-power LED streetlamp are effectively ensured.
Description
Technical field:
The present invention relates to a kind of LED street lamp that utilizes the semiconductor chilling plate heat radiation.
Background technology:
Popular LED street lamp mostly adopts high-power LED lamp pearl group face to form in the market.High-powered LED lamp, the problem of overriding concern is heat radiation during work.Observe the LED street lamp of practical application, its radiating mode is to utilize the fin of the multi-disc book muscle composition of lamp body shell to dispel the heat.This radiating mode is when the weather of sweltering heat in summer, and radiating effect is unsatisfactory, thereby the temperature of LED street lamp is raise, sometimes even make the LED lamp produce serious light decay.
Summary of the invention:
A kind of LED street lamp that utilizes the semiconductor chilling plate heat radiation, the outward appearance of lamp body is similar to the street lamp of conventional incandescent lamp ﹠ lantern, and the lamp holder specification is the same.Difference is that the illuminator of lamp is different, and conventional road lamp adopts gas luminescence, and the luminous employing semiconductor solid luminescence of LED street lamp; When conventional road lamp is lighted around the light directive, and the light plane earth directive ground during work of LED street lamp.
A kind of LED street lamp that utilizes the semiconductor chilling plate heat radiation, its circuit system is comprised of automatic voltage regulating circuit, five parts such as circuit, high power LED lamp circuit, LED socket voltage monitoring circuit and semiconductor refrigerating circuit of automatically turning on light form.
Automatic voltage regulating circuit is comprised of special-purpose pressure regulation IC chip NB7232 and peripheral circuit thereof, and its function is that to decide according to the length that 6 pin of NB7232 input positive pulse signal is held time be the operation of switch lamp or pressure regulation.When the input of 6 pin when just affectionately signal is held time less than 1/3 second, the NB7232 chip carries out the operation of switch lamp by 8 pin effect IGCT SCR; When the input positive pulse signal of 6 pin was held time greater than 1/3 second, the NB7232 chip carried out the operation of light modulation (pressure) by 8 pin effect IGCT SCR.
The automatic switch circuit for lamp is comprised of timer IC chip EN555 and peripheral circuit.The function of circuit is the conductive characteristic that utilizes the electric capacity both end voltage not suddenly change, power supply rigidly connect logical in, make its 3 pin output high level by the electric capacity effect on 2,6 pin of EN555, then drive diode D on 3 pin by high level
5Conducting.As long as select the capacitance on 2,6 pin suitable, just can guarantee that the positive pulse of the 3 pin output of EN555 was held time less than 1/3 second, automatic voltage regulating circuit is moved in the operation of turning on light.
High power LED lamp circuit is connected into an elementary cell by six 3W paster LED lamp pearls, and then six elementary cells in parallel, forms the high-power LED street lamp bulb of 3 * 6 * 6=108W.The drive circuit of large power road lamp bulb adopts capacitance-resistance voltage reduction circuit, and the alternating current after the step-down is just supplied with LED lamp string working power through filtering again through over commutation.
LED socket voltage monitoring circuit is comprised of Switching Power Supply IC chip TWH8778 and peripheral circuit.The function of circuit is to utilize by diode D
1, by the resistance R
7, R
8And capacitor C
8The voltage signal acquisition circuit that forms is followed the tracks of collection to the voltage signal of socket.When the LED street lamp was operated in the rated value scope, the current potential of 5 pin of TWH8778 was lower than 1.6V, at this moment, and 2, the 3 pin Non voltage outputs of TWH8778; When LED street lamp operating voltage was above above 220V, the current potential of 5 pin of TWH8778 was greater than 1.6V, and at this moment, 2,3 pin of TWH8778 have Voltage-output, drove the diode D that is serially connected on 2,3 pin
3Conducting, the effect automatic voltage regulating circuit carries out regulation voltage (light modulation) operation, the conduction angle aperture of IGCT SCR reduced, LED socket lower voltage, the 5 pin current potentials of TWH8778 return to again below the 1.6V, and the voltage of 2,3 pin also returns to nought state.
The semiconductor chilling plate radiating circuit is comprised of semiconductor chilling plate and peripheral circuit.Power transformer B becomes 6V to the 220V alternating current, then send the rectification circuit rectification, carries out filtering by electric capacity again, obtains the approximately smooth direct current electricity semiconductor supply cooling piece working power of 5V.
Semiconductor chilling plate is after giving its input DC power, and its two working faces can produce heat absorption (refrigeration) on one side, and another side produces the duty of heat release.When semiconductor chilling plate is applied to the LED street lamp, heat absorption (refrigeration) face of semiconductor chilling plate is installed in hermetically the inner cavity surface of LED street lamp; The one side of heat release closely is connected with the shell of lamp body, allows heat be discharged in the air.
Description of drawings:
Fig. 1 is a kind of electrical schematic diagram that utilizes the LED street lamp of semiconductor chilling plate heat radiation.
The specific embodiment
Choose aim at aluminium alloy that the LED lamp makes on the market and with the lamp body of book muscle fin as the LED streetlamp housing, the outward appearance of this lamp body is similar to conventional road lamp, difference be lamp housing half be the aluminium alloy body, and second half is transparent plastic production.Connect the lamp holder that power supply is used, transform used equipment for facility, select the used large screw socket φ 40mm of conventional road lamp as the universal socket of LED street lamp.
According to a kind of LED street lamp that utilizes semiconductor refrigeration radiating shown in Figure 1, the used power transformer of cooling piece circuit is installed in large screw socket inner chamber, and then semiconductor chilling plate is installed in the bulky aluminium alloy lamp body of approximately semicircle in the columniform lamp body.
According to a kind of LED street lamp that utilizes semiconductor refrigeration radiating shown in Figure 1, illuminator is large-power LED light bead, and the power of every lamp is 3W, and connecting 6 is an application junior unit, then 6 junior units in parallel, the power that forms the LED lamp is the high-power LED street lamp of 108W.The drive circuit of LED street lamp adopts the capacitance-resistance voltage reduction circuit without power consumption, after the step-down of 220V alternating current, through bridge rectifier, just supplies with LED street lamp working power through filtering again.The lamp pearl of LED street lamp is installed in the columniform lamp body approximately on the section circuit board of the bulky transparent body of semicircle.
According to a kind of LED street lamp that utilizes semiconductor refrigeration radiating shown in Figure 1, the components and parts of the circuit such as its automatic voltage regulating circuit, socket voltage monitoring circuit and the circuit of turning on light, adopt a circuit board that this three partial circuit is installed respectively, and this piece circuit board is assigned into LED road lamp body inner chamber middle (LED lamp pearl back of circuit board).
A kind of course of work of utilizing the LED street lamp of semiconductor refrigeration radiating: owing to selecting general large screw socket, compatible with the incandescent lamp ﹠ lantern road lamp cap of traditional gas type, only the LED street lamp bulb of semiconductor refrigeration radiating is assigned on the general bulb socket during use and get final product, and attention LED street lamp luminous and direction down.Behind the plugged, on-off circuit IC
3At first work IC
33 pin send one less than 1/3 second positive pulse signal to automatic voltage regulating circuit IC
16 pin, by IC
1The angle of flow of 8 pin effect IGCT SCR open, connect the high-powered LED lamp power supply, the LED street lamp of semiconductor refrigeration radiating is just started working.
After the LED street lamp of semiconductor refrigeration radiating obtains electricity work, by with IC
2For the socket voltage monitoring circuit of core carries out tracing and monitoring to the operating voltage of high-powered LED lamp.When the operating voltage of LED street lamp during at rated value, the socket voltage monitoring circuit is exported without control signal; When operating voltage master's overrate scope of LED street lamp, the socket voltage monitoring circuit is just exported a positive pulse voltage signal to 6 pin of automatic voltage regulating circuit, and it acts on IC
18 pin output control signal remove to act on IGCT SCR and carry out the pressure regulation operation, with the lower voltage of socket, make stable operating voltage in the rated value scope.
According to a kind of LED street lamp that utilizes semiconductor refrigeration radiating shown in Figure 1, its refrigeration circuit is after bulb obtains electricity work, always just take the Conversion of Energy of electric energy conversion as a cold energy of a heat energy, as long as suitably choose semiconductor chilling plate power, just can guarantee high-power LED street lamp, its temperature is within the temperature rise value of permission during work, thereby guarantees that the LED street lamp is durable for a long time.
Claims (8)
1. a LED street lamp that utilizes semiconductor refrigeration radiating comprises lamp body, power interface, led circuit plate, monitoring and control panel and semiconductor chilling plate etc.It is characterized in that: the cylindrical shape of LED road lamp body; Power interface adopts general large size screw socket φ 40mm road lamp cap; The led circuit plate is installed in half the section of cylinder, and monitoring and control panel are installed in the back side of led circuit plate; Semiconductor chilling plate then is installed in half aluminum alloy lamp intracoelomic cavity of cylinder closely.
2. according to right 1 described a kind of LED street lamp that utilizes semiconductor refrigeration radiating, it is characterized in that: the LED street lamp of cylindrical shape, its diameter 45mm, length is 230mm approximately, is connected with power supply by general φ 40mm screw socket.
3. according to right 1 or 2 described a kind of LED street lamps that utilize semiconductor refrigeration radiating, it is characterized in that: the led circuit plate is the large-power LED light bead that 3 row are arranged, and every row is equipped with 12 LED lamp pearls, and every lamp pearl power is 3W, 6 lamp pearls share a drive circuit, and total power is 108W.
4. according to right 3 described a kind of LED street lamps that utilize semiconductor refrigeration radiating, it is characterized in that: the positive large-power LED light bead of installing on the led circuit plate, the components of drive circuit of LED is installed at the back side, and the monoblock circuit board is installed in cylinder approximately in half the section.
5. according to right 1 described a kind of LED street lamp that utilizes semiconductor refrigeration radiating, it is characterized in that: automatic voltage regulating circuit is that IC chip and the bidirectional thyristor SCR of NB7232 is the electric circuit constitute of core by model, 6 pin of NB7232 are positive pulse inputs, and 8 pin are control signal outputs.
6. according to right 1 described a kind of LED street lamp that utilizes semiconductor refrigeration radiating, it is characterized in that: the socket voltage monitoring circuit is with model TWH8778 (IC
2) switching power source chip be the electric circuit constitute of core, diode D
1, resistance R
7, R
8, C
8Voltage sample circuit, IC
25 pin are the input quantity ends of adjusting, IC
22,3 pin are outputs of controlled quentity controlled variable.
7. according to right 1 described a kind of LED street lamp that utilizes semiconductor refrigeration radiating, it is characterized in that: arrange with IC in the control circuit of LED street lamp
3Be the circuit of turning on light of core, IC
3Model be NE555, choose the capacitor C on 2,6 pin
16Value just can guarantee the positive pulse holding time of voltage of 3 pin output less than 1/3 second, the operation thereby the assurance automatic voltage regulating circuit is turned on light.
8. according to right 1 described a kind of LED street lamp that utilizes semiconductor refrigeration radiating, it is characterized in that: the chill surface of semiconductor chilling plate disperses the heat that great power LED produces towards the lamp body inner chamber with low temperature.Heating face is close to the aluminium alloy lamp body of lamp body, and then the thin muscle fin by the lamp body outside is discharged to heat in the air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102012495A CN102889498A (en) | 2011-07-19 | 2011-07-19 | LED (Light Emitting Diode) streetlamp for radiating by utilizing semiconductor refrigerating chip |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102012495A CN102889498A (en) | 2011-07-19 | 2011-07-19 | LED (Light Emitting Diode) streetlamp for radiating by utilizing semiconductor refrigerating chip |
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|---|---|
| CN102889498A true CN102889498A (en) | 2013-01-23 |
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| CN2011102012495A Pending CN102889498A (en) | 2011-07-19 | 2011-07-19 | LED (Light Emitting Diode) streetlamp for radiating by utilizing semiconductor refrigerating chip |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103118463A (en) * | 2013-02-04 | 2013-05-22 | 上思县东岽电子科技有限责任公司 | Self-on self-adjusting self-off LED road lamp with semiconductor refrigerating piece for heat radiating |
| CN103957628A (en) * | 2014-04-21 | 2014-07-30 | 黄焕珠 | LED road lamp capable of radiating through semiconductor cooling piece with power automatically reduced by 60% in timing mode |
| CN104168690A (en) * | 2014-05-29 | 2014-11-26 | 上思县东岽电子科技有限责任公司 | LED street lamp with semiconductor refrigeration sheet assisting heat dissipation and automatic reduction of power by 60% |
| CN104244520A (en) * | 2014-09-08 | 2014-12-24 | 黄焕珠 | LED street lamp driver capable of achieving chilling plate radiating and timing automatic dimming |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002093587A (en) * | 2000-09-13 | 2002-03-29 | Hiroshi Noji | Led brightness adjusting equipment |
| CN1946254A (en) * | 2005-10-03 | 2007-04-11 | 黄焕珠 | Energy saving module for road lamp |
| CN101387385A (en) * | 2008-10-10 | 2009-03-18 | 金明武 | LED light source assembly |
| CN101614341A (en) * | 2009-07-28 | 2009-12-30 | 苏州佳世达光电有限公司 | Light-emitting device and cooling means thereof, projecting apparatus |
| CN201393318Y (en) * | 2009-05-05 | 2010-01-27 | 河北科技大学 | LED automatic control system with radiating function |
-
2011
- 2011-07-19 CN CN2011102012495A patent/CN102889498A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002093587A (en) * | 2000-09-13 | 2002-03-29 | Hiroshi Noji | Led brightness adjusting equipment |
| CN1946254A (en) * | 2005-10-03 | 2007-04-11 | 黄焕珠 | Energy saving module for road lamp |
| CN101387385A (en) * | 2008-10-10 | 2009-03-18 | 金明武 | LED light source assembly |
| CN201393318Y (en) * | 2009-05-05 | 2010-01-27 | 河北科技大学 | LED automatic control system with radiating function |
| CN101614341A (en) * | 2009-07-28 | 2009-12-30 | 苏州佳世达光电有限公司 | Light-emitting device and cooling means thereof, projecting apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103118463A (en) * | 2013-02-04 | 2013-05-22 | 上思县东岽电子科技有限责任公司 | Self-on self-adjusting self-off LED road lamp with semiconductor refrigerating piece for heat radiating |
| CN103957628A (en) * | 2014-04-21 | 2014-07-30 | 黄焕珠 | LED road lamp capable of radiating through semiconductor cooling piece with power automatically reduced by 60% in timing mode |
| CN104168690A (en) * | 2014-05-29 | 2014-11-26 | 上思县东岽电子科技有限责任公司 | LED street lamp with semiconductor refrigeration sheet assisting heat dissipation and automatic reduction of power by 60% |
| CN104244520A (en) * | 2014-09-08 | 2014-12-24 | 黄焕珠 | LED street lamp driver capable of achieving chilling plate radiating and timing automatic dimming |
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Application publication date: 20130123 |