CN202195376U - LED street lamp with heat-dissipating device - Google Patents
LED street lamp with heat-dissipating device Download PDFInfo
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- CN202195376U CN202195376U CN2011203441084U CN201120344108U CN202195376U CN 202195376 U CN202195376 U CN 202195376U CN 2011203441084 U CN2011203441084 U CN 2011203441084U CN 201120344108 U CN201120344108 U CN 201120344108U CN 202195376 U CN202195376 U CN 202195376U
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- heat
- led light
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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
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
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Abstract
An LED street lamp with a heat-dissipating device comprises a lamp housing formed by an upper shade housing and a bottom housing, wherein a driving power supply is electrically connected with an LED light-emitting block via a thermal protection temperature switch in the lamp housing; the heat-dissipating device for performing heat dissipation to the LED light-emitting block is further arranged in the lamp housing, and comprises a radiator bonded with the LED light-emitting block; a blower is arranged above a heat-dissipating surface of the radiator; an independent air inlet channel is arranged at the air inlet end of the blower; an air inlet of the air inlet channel is formed at the bottom of the lamp housing; a circle of air outlet holes are formed at the edge of the bottom housing; the heat-dissipating device also can be a metal splint bonded with the LED light-emitting block, and the metal splint is connected with a heat-dissipating blade via a metal superconductive heat pipe; a blower for blowing air and heat dissipating is arranged under the heat-dissipating blade; and the blower and the heat-dissipating blade are arranged in the independent air channel. The heat-dissipating device provided by the utility model has the characteristics that cold air is constantly sucked into the blower from the outside of the lamp, the heat dissipation is quick, the temperature rise is slow, the heat dissipation is realized without utilizing the lamp housing and influence caused by the solar energy is low.
Description
Technical field
The utility model relates to a kind of lighting device, relates in particular to a kind of high-power LED street lamp with heat abstractor.
Background technology
Large-power light-emitting diodes-LED has been applied in fields such as road lighting, industrial and mineral illumination, city lighting more and more with its energy-saving and environmental protection, safety, plurality of advantages such as durable.But still have two big factors restricting the popularization and application of this new light sources at present, the cost of first high-power LED light source is tens of times even hundred times more than of conventional light source cost, and the cost of LED light fixture is just very high; It two is that the temperature that produces in high-power LED chip when work can not be reduced to the safe handling temperature effectively, so that cause light decay to accelerate the lost of life.High price, short-life product are difficult to popularize certainly.
At present, high-power LED street lamp mostly utilizes lamp shell to make radiator usefulness, with led chip and lamp housing through the conduction pattern thermally coupled, by lamp housing to outside natural heat dissipation.This scheme has two big defectives: first natural heat dissipation speed is slow.Especially under the high situation of summer environment temperature, radiating effect is not good, and the led chip temperature is difficult to lower.Its two be solar energy high temperature that daytime, burning sun tanned by the sun on lamp shell to be accepted through conducting to led chip, aggravation led chip light decay is with aging.
One Chinese patent application 201010216786.2 discloses a kind of Based Intelligent Control forced convertion radiation LED streetlamp system.Comprise: light pole, lamp stand cantilever, high-power LED street lamp cap, fin, radiator fan, intelligent drives controller.The heat dispersion substrate of great power LED is fixed on the fin; One end of fin is being fixed radiator fan, and the air intake surface of radiator fan is over against the air outlet of street lamp cantilever, and institute's required airflow is got into by the air inlet in the top and the bottom of hollow light pole; In the safe range that the substrate temperature of great power LED is being set; Even at this moment turn on light, fan is not worked yet, by the passive type Natural Heat Convection; When the substrate temperature of great power LED surpassed 60 ℃ of the safe temperature upper limits set, fan work adopted active forced heat radiation.If radiator fan breaks down or air channel and fin dust stratification are too much, when the temperature of LED substrate surpassed 80 ℃ of the limit fault temperature set, the LED circuit for lamp was disconnected, and controller sends alarm signal simultaneously, carry out maintenance and inspection.Its weak point, the one, radiating effect is far from being under the free convection situation." cold air by last air inlet and following air inlet, gets into the hollow air channel of light pole through light pole in its specification record.According to the aerothermodynamics principle, cold air directly gets into the heat dissipating layer heat exchange of fin, and the hot-air after the heat exchange is discharged from the avris slit of LED street lamp cap ".Aerodynamic principle has been twisted in this section description.Actual conditions should be: because of lamp stand has upper and lower opening, so it has the wind action of pulling out as chimney.That is to say that cold air can only get into from the upper shed discharge from the lamp stand under shed, and the lamp stand cantilever is a branch on lamp stand top, the position is lower than the lamp stand upper shed, so from the cold air major part of air inlet entering lamp stand can be from the openning discharge of masthead down.When radiator fan was not worked, air-flow was can not turn around from top to down according to the path of subjective imagination to get into cantilever.Also because cantilever is connecting lamp holder, to the resistance of masthead opening, the cold air that therefore gets into cantilever and lamp holder is very little, in lamp holder, is difficult to form free convection much larger than directly for the resistance that air communication is crossed, with regard to let alone radiating effect.The 2nd, radiator fan performs practically no function.Lamp stand and cantilever are the air intake passages of radiator fan in its system, but long-pending little because of the cantilever hollow section, and certain length is arranged again; The centre also is installed with electric wire, thereby windage is bigger, moreover fan outlet is the inner chamber of lamp holder; The space is bigger; The sectional area that is to say air outlet is than the big several times of air inlet sectional area, and like this, the flow of wind can be given a discount because of elongated intake stack; The speed of wind can descend because of the increase of outlet again simultaneously, and the cold air of entering lamp holder inner chamber is not all to participate in heat radiation; Can know by its accompanying drawing; Place its air intake of radiator fan and the outlet air end of lamp holder to communicate; Air in the lamp holder inner chamber circulates in will under action of fan, forming; Air can not be discharged outside the lamp effectively in the lamp, and temperature raises gradually in the lamp thereby make, and obviously such forced convertion can not reach due radiating effect.The 3rd, the Starting mode of fan is unreasonable.In fact its described Based Intelligent Control is exactly simple temperature control.The more important thing is that the mode of starting fan is irrational when temperature raises,, it is operated in the lower environment of temperature rise just can slows down light decay, increase the service life because the LED light-emitting component is the expensive element extremely responsive to temperature.Aforesaid way is that each LED experience temperature over-range rear fan starts, and once transfiniting is exactly a high temperature impact, and temperature shock can be aggravated light decay to led chip so repeatedly, shortens the life-span.
The utility model content
The purpose of the utility model provides a kind of LED street lamp with heat abstractor, solves the problem that existing LED road lamp cooling is not good, influence the life-span.Have rapid heat dissipation, temperature rise is low, through lamp housing heat radiation, does not receive extraneous solar heat energy to influence little characteristics.
The utility model solves the technical scheme that its technical problem adopted: a kind of LED street lamp with heat abstractor, and it comprises the lamp housing that upper encloser, drain pan constitute; In lamp housing, driving power is electrically connected with the LED light-emitting block through heat protection temperature switch; It is characterized in that: the heat abstractor that the LED light-emitting block is dispelled the heat, do not dispel the heat through lamp housing also is set.
Described heat abstractor comprises the radiator that is mounted on the LED light-emitting block, above the radiating surface of radiator, blower fan is set, and described blower fan air intake is provided with independently air inlet duct, and the air inlet of described air inlet duct is arranged on the lamp housing bottom; One circle exhaust vent is set in the drain pan edge.
Can also be, described heat abstractor comprises the metal splint that is mounted on LED light-emitting block group, and described metal splint connects fin through the metal super heat-conductive pipe; The blower fan of blowing heat radiation is set below fin, and described blower fan and fin are arranged on independently in the air channel, and the air inlet in described air channel is arranged on the lamp housing bottom; One circle exhaust vent is set in the drain pan edge.
The operation principle of the utility model is: street lamp when operation, the blower fan running, cold wind sucks the air channel by air inlet, by blower fan directly blow with the hot linked radiator of LED light-emitting block on, take away heat and become hot blast; Because the buffer action in air channel, hot blast can not flow into air inlet, can only be outside exhaust vent is discharged lamp.What blower fan blowed to radiator is cold wind always, therefore can reach rapid heat dissipation, the effect that temperature rise is low.Above scheme makes LED light-emitting block and lamp housing not have heat conduction path basically, avoids the heat effect of lamp housing Exposure to Sunlight temperature to the LED light-emitting block.
The beneficial effect of the utility model: independently air blast cooling LED light-emitting block heat abstractor is set in the lamp housing owing to be employed in; Comprise and use blower fan to suck cold wind from lamp housing bottom air inlet mouth through the air channel; Blower fan blows to cold wind the heat abstractor of LED light-emitting block; Fast heat is taken away, hot blast is discharged outside the lamp from the vent of lamp housing periphery.To the full extent, directly reduce the temperature of heat source body LED.Adopt air channel or ventilating duct structure and hot blast end and lamp housing to isolate, hot blast can't reflux, guarantee blower fan from lamp outside direct suction be always cold wind, to guarantee its best radiating effect.Do overheat protector with temperature switch, the unlikely damage of LED element when guaranteeing that heat abstractor breaks down, safe and reliable economy.Have rapid heat dissipation, temperature rise is low, through lamp housing heat radiation, receives advantages such as the influence of solar heat is little.
Below will combine accompanying drawing and embodiment, the utility model will be carried out comparatively detailed explanation.
Description of drawings
Fig. 1 is the circuit diagram of the utility model embodiment.
Fig. 2 is the structure cutaway view of the utility model embodiment 1.
Fig. 3 is the right view of Fig. 2.
Among Fig. 1,2,3: 1. power line, 2. driving power, 3.LED light-emitting block, 4. temperature detect switch (TDS), 5. blower fan, 6. air channel, 7. air inlet, 8. screen window, 9. radiator, 10. upper encloser, 11. drain pans, 12. air outlets, 13. supports, 14. cloches, 15. installing holes.
Fig. 4 is the structure cutaway view of the utility model embodiment 2.
Fig. 5 is the right view of Fig. 4.
Among Fig. 4,5: 1. power line, 2. driving power, 3.LED light-emitting block, 4. temperature detect switch (TDS), 5. blower fan, 6. air channel, 7. air inlet, 8. screen window, 9. metal splint, 10. metal super heat-conductive pipe, 11. fin, 12. upper enclosers, 13. drain pans, 14. air outlets, 15. cloches, 16. installing holes.
The specific embodiment
Shown in Fig. 2-3, a kind of LED street lamp with heat abstractor, it comprises the lamp housing that upper encloser 10, drain pan 11 constitute.In lamp housing, driving power 2 is electrically connected with LED light-emitting block 3 through heat protection temperature switch 4.Also be provided with LED light-emitting block 3 heat radiation, the heat abstractor through the lamp housing heat radiation, it is included in the radiator 9 that is mounted on LED light-emitting block 3 on the support 13 of drain pan 11, and radiator 9 can be selected the aluminium radiator in comb shape cross section for use.Blower fan 5 is set above the radiating surface of radiator 9, and described blower fan 5 air intakes connect independently air inlet duct 6, and the air inlet 7 of air inlet duct 6 is arranged on the lamp housing bottom; One circle exhaust vent 12 is set in drain pan 11 edges.
Further, described blower fan 5 and LED light-emitting block 3 shared driving powers.Described air inlet 7 is provided with gauze 8, and gauze 8 is selected the stainless steel gauze for use, is used to intercept winged insect.Described drain pan 11 is provided with the cloche 14 of adaptive LED light-emitting block, and exhaust vent 12 evenly distributes in drain pan 11 edges.The installing hole 15 that lamp stand connects usefulness also is set on drain pan 11, and power line 1 passes installing hole 15 and draws.
LED light-emitting block and dc fan are supplied power by driving power, and driving power is connected with the LED group through temperature switch.The effect of temperature switch is overtemperature protection, cuts off the LED power supply when causing that owing to fault or other reason temperature is too high automatically, after temperature lowers, and automatic recovery of power supply.
Further, described blower fan 5 with LED light-emitting block 3 shared driving powers 2.Described air inlet 7 is provided with gauze 8, and gauze 8 is selected the stainless steel gauze for use.Described drain pan 13 is provided with the cloche 15 of adaptive LED light-emitting block, and exhaust vent 14 evenly distributes in drain pan 13 edges.The installing hole 16 that lamp stand connects usefulness also is set on drain pan 13, and power line 1 passes installing hole 16 and draws.
Claims (5)
1. LED street lamp with heat abstractor, it comprises the lamp housing that upper encloser, drain pan constitute; In lamp housing, driving power is electrically connected with the LED light-emitting block through heat protection temperature switch; It is characterized in that: the heat abstractor that the LED light-emitting block is dispelled the heat, do not dispel the heat through lamp housing also is set.
2. the LED street lamp with heat abstractor as claimed in claim 1; It is characterized in that: described heat abstractor; Comprise the radiator that is mounted on the LED light-emitting block; Above the radiating surface of radiator, blower fan is set, described blower fan air intake is provided with independently air inlet duct, and the air inlet of described air inlet duct is arranged on the lamp housing bottom; One circle exhaust vent is set in the drain pan edge.
3. the LED street lamp with heat abstractor as claimed in claim 1 is characterized in that: described heat abstractor, comprise the metal splint that is mounted on LED light-emitting block group, and described metal splint connects fin through the metal super heat-conductive pipe; The blower fan of blowing heat radiation is set below fin, and described blower fan and fin are arranged on independently in the air channel, and the air inlet in described air channel is arranged on the lamp housing bottom; One circle exhaust vent is set in the drain pan edge.
4. the LED street lamp with heat abstractor as claimed in claim 2 is characterized in that: the shared driving power of described blower fan and LED light-emitting block; Described radiator is the aluminium radiator in comb shape cross section; Described air inlet is provided with gauze; Described drain pan is provided with the cloche of adaptive LED light-emitting block, and the equally distributed exhaust vent of a circle is set in the drain pan edge.
5. the LED street lamp with heat abstractor as claimed in claim 3 is characterized in that: described blower fan with the shared driving power of LED light-emitting block; Described metal splint is an alclad; Described fin is the one group of aluminum fin that is nested on the metal super heat-conductive pipe; Described air inlet is provided with gauze; Described drain pan is provided with the cloche of adaptive LED light-emitting block, and the equally distributed exhaust vent of a circle is set in the drain pan edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203441084U CN202195376U (en) | 2011-09-14 | 2011-09-14 | LED street lamp with heat-dissipating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203441084U CN202195376U (en) | 2011-09-14 | 2011-09-14 | LED street lamp with heat-dissipating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202195376U true CN202195376U (en) | 2012-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203441084U Expired - Fee Related CN202195376U (en) | 2011-09-14 | 2011-09-14 | LED street lamp with heat-dissipating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202195376U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287723A (en) * | 2011-09-14 | 2011-12-21 | 刘德九 | Light emitting diode (LED) street lamp with heat radiator |
| CN103016992A (en) * | 2012-12-24 | 2013-04-03 | 江苏森隆机电有限公司 | LED (Light Emitting Device) light capable of generating electricity by self and actively radiating heat |
| CN105822919A (en) * | 2016-05-24 | 2016-08-03 | 江苏创导新能源科技有限公司 | LED lamp |
| CN106871061A (en) * | 2017-03-29 | 2017-06-20 | 江苏月华照明科技有限公司 | A kind of high efficiency and heat radiation solar LED street lamp |
| CN108386783A (en) * | 2018-02-05 | 2018-08-10 | 深圳市奈士迪技术研发有限公司 | A kind of street lamp with heat dissipation and anti-sleet function |
-
2011
- 2011-09-14 CN CN2011203441084U patent/CN202195376U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287723A (en) * | 2011-09-14 | 2011-12-21 | 刘德九 | Light emitting diode (LED) street lamp with heat radiator |
| CN103016992A (en) * | 2012-12-24 | 2013-04-03 | 江苏森隆机电有限公司 | LED (Light Emitting Device) light capable of generating electricity by self and actively radiating heat |
| CN103016992B (en) * | 2012-12-24 | 2015-11-18 | 江苏森隆机电有限公司 | Self power generation active heat removal LED |
| CN105822919A (en) * | 2016-05-24 | 2016-08-03 | 江苏创导新能源科技有限公司 | LED lamp |
| CN105822919B (en) * | 2016-05-24 | 2018-12-11 | 臧其蒙 | A kind of LED lamp |
| CN106871061A (en) * | 2017-03-29 | 2017-06-20 | 江苏月华照明科技有限公司 | A kind of high efficiency and heat radiation solar LED street lamp |
| WO2018176721A1 (en) * | 2017-03-29 | 2018-10-04 | 江苏月华照明科技有限公司 | Solar led street lamp capable of highly-efficient heat dissipation |
| CN108386783A (en) * | 2018-02-05 | 2018-08-10 | 深圳市奈士迪技术研发有限公司 | A kind of street lamp with heat dissipation and anti-sleet function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120418 Termination date: 20130914 |