CN102954410A - LED (light emitting diode) outdoor lamp light assembly - Google Patents
LED (light emitting diode) outdoor lamp light assembly Download PDFInfo
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- CN102954410A CN102954410A CN2012103925823A CN201210392582A CN102954410A CN 102954410 A CN102954410 A CN 102954410A CN 2012103925823 A CN2012103925823 A CN 2012103925823A CN 201210392582 A CN201210392582 A CN 201210392582A CN 102954410 A CN102954410 A CN 102954410A
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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
Abstract
The invention discloses an LED (light emitting diode) outdoor lamp light assembly which comprises a radiator, an LED lamp plate and a combined type lens, wherein the radiator is composed of a bottom plate and fins which are integrally formed; the bottom plate is provided with gaps, the fins are arranged on the back of the bottom plate at intervals and extend to the gap to form a channel which can ventilate vertically; the combined type lens and the LED lamp plate are arranged on the frontage of the bottom plate, and the LED lamp plate is placed in the combined type lens; the combined type lens and the frontage of the radiator bottom plate form a tight connection through a water-proof silica gel loop, an IP dust-proof water-proof level achieves more than 67, the combined type lens has multiple optical curved surfaces, and each curved surface is corresponding to an LED lamp bead on the lamp plate; and the function of the curved surfaces is to change the light intensity spatial distribution of light emitted by the LED lamp beads into the light intensity spatial distribution which is suitable for illumination for a road surface, namely light distribution. The invention aims to provide an LED outdoor lamp light assembly which has the advantages of good heat dissipation and low failure rate, and the light assembly can be arranged in a shell of a street lamp and be connected with a power source, thereby forming an LED street lamp.
Description
Technical field
The present invention relates to a kind of LED outdoor lighting lamp, particularly a kind of optical assembly of LED outdoor lamp.
Background technology
Outdoor lighting lamp generally comprises street lamp, Tunnel Lamp, high bar Projecting Lamp, floodlight Projecting Lamp, the stadium Projecting Lamp, billboard Projecting Lamp and garden lamp etc., because power is large, power consumption is many, and the height that arranges is higher, be not easy to frequent replacing, maintenance, general light source all selects the life-span longer, the high-pressure mercury lamp that light efficiency is higher or Metal halogen lamp.But compared to the LED outdoor lamp, the energy-conservation coefficient of high-pressure mercury lamp or this high-voltage gas discharging light of Metal halogen lamp is still very low, the one, although because the light efficiency of powerful high-voltage gas discharging light light source up to 90-140lm/W, but it is luminous to be type around 360 °, after reflection shield adjustment light emission direction, light loss is up to more than 40%; Although also have its light emission direction to be fit to the illumination of various different places through adjusting (being luminous intensity distribution), because the luminous intensity distribution inaccuracy, so the illumination utility ratio is still very low, the effective lighting coefficient is still very low in other words.And LED, increases substantially the illumination utility ratio so can realize accurate luminous intensity distribution by secondary optical system because its luminous directionality can be controlled.So, although nowadays the light efficiency of the led light source on the market also only has 120-140lm/W, remove to replace the outdoor lamp of traditional high-pressure discharge light source class with the LED outdoor lamp, only need 40% power just can realize same illuminating effect.This efficient illumination of LED outdoor lamp is based on accurate luminous intensity distribution, the high efficiency of secondary optical system, and the high efficiency of driving power.
The energy-conservation factor that also has in addition a stealth be can't see in ammeter or pair electricity charge process, can only find out the problem of power factor that Here it is in electrical network or Utilities Electric Co..High-voltage gas discharging light all needs ballast, and the power factor of ballast only has about 0.5, and namely this lamp also can cause the energy loss that doubles of electrical network except self power consumption, and namely total power consumption is that the light fixture general power is divided by power factor.Be exactly Zong power consumption deducts the energy of light fixture general power loss in electrical network.And the power factor of the driving power of outdoor LED lamp is all up to more than 0.98, so substantially there is not loss in electrical network.Comprehensive these two energy-conservation factors, LED outdoor lighting lamp than the energy-conservation ratio of high-voltage gas discharging light up to 80%.
Except energy-conservation, the life-span of LED outdoor lighting lamp is longer, wherein the life-span of LED lamp pearl can be up to more than 100,000 hours, and condition is that the PN junction temperature of the LED chip in the LED lamp pearl can not surpass 70 ℃ under in working order, so the radiating management of whole LED outdoor lamp is most important.Characteristics of the present invention are high efficiency and heat radiation.
For multi-form road, street lamp needs different power or specification, so employing LED outdoor lamp optical assembly is combined into the LED outdoor lighting lamp of different capacity, and can be so that the large-scale production of the LED outdoor lighting lamp of all size becomes more convenient.
The LED outdoor lighting lamp is located at outdoor, causes the LED outdoor lighting lamp often in the face of exposing to the sun and rain, to seem particularly important so guarantee the water proofing property of LED outdoor lighting lamp; And waterproof only not, also want moistureproof, water-impervious as long as because there is steam to enter into the seal chamber of mounted LED lamp bulb, will destroy LED encapsulating material and chip, causes LED lamp pearly-lustre to decline even dead lamp.Adopt modular LED light fixture, the huge volume integral of script outdoor lamp is slit into small size, and the annular seal space of small size is more easily realized waterproof and dampproof function.This modular construction can increase the reliability of LED outdoor lighting lamp, reduce trouble.
Summary of the invention
The object of the invention is to provide a kind of heat radiation good, the LED outdoor lamp optical assembly of failure rate is low.
A kind of LED outdoor lamp optical assembly comprises radiator, LED lamp plate, Combined lens, waterproof grommet and waterproof electrical connector;
Described radiator comprises base plate and fin; Base plate is provided with breach; Fin is arranged at the back side of base plate with being spaced, and extends to breach causing the path that can ventilate up and down, and fin and base plate are one-body molded;
Described Combined lens and LED lamp plate are installed on the front of base plate, and the LED lamp plate places in the Combined lens.
The fin of more existing radiators is that plug-in is connected with base plate, so the junction of fin and base plate certainly exists the gap, cause the heat transmission of base plate and fin to have intermediate medium, reduced the efficient of hot transmission, namely increased the thermal resistance of hot transmission path, causing between base plate and the fin has temperature difference.Fin and base plate are one-body molded among the present invention, so base plate can directly be sent to fin with the heat that receives, the efficient that heat is transmitted is high, and thermal resistance is low between base plate and the fin, and temperature contrast is in 5 degree.In order to reduce this temperature contrast, the thickness of fin and highly very important generally highly is not higher than 5cm, otherwise extrusion die can't make, and fin thickness is more preferably greater than 1mm, just can keep like this said temperature difference in 5 degree in addition.
Under normal operating position, lamp plate is equipped with in the front of base plate., and LED outdoor lamp optical assembly is when using, the base plate face down, and the back side is up.Because LED can be heat energy with the electric energy conversion more than 50% when work, these heat energy can reach fin by base plate, by the surface of base plate and fin heat energy are delivered to air at last; Therefore, near the air the fin will be heated, rise.Because fin extends to the indentation, there of base plate, make the cold air fin of flowing through from below to up without heating, so indentation, there will form the rising circulation of an air, air after the heating is seen off, can greatly improve the radiating efficiency of radiator by the Effect of Nature Convection of this vertical lifting, following data declaration the raising of this radiating efficiency.
| The shared base areas ratio of breach | Base plate of radiator temperature rise (with the difference of environment temperature) |
| 0％ | 36 |
| 2％ | 35 |
| 5％ | 31℃ |
| 10％ | 20℃ |
| 20％ | 16℃ |
From above-mentioned data, when the opening ratio reached 5%-10%, radiating efficiency promoted the fastest.When the opening ratio continued to improve, the radiating efficiency enhancing rate began to reduce, and progressively moves towards saturated.Can find out that in addition after the opening, radiating efficiency (being inversely proportional to temperature rise) is enhanced about more than once.
Certainly above test condition is that LED outdoor lamp optical assembly is arranged in the casing of street lamp with air vent.Many producers that make the LED street lamp also place radiator in the casing of street lamp now, but air vent causes air to flow, and heat stops in the enclosure, causes radiating effect not good; For addressing this problem, the designer attempts offering ventilating opening at shell, so that heat flows out, but do not form convection current, the heat that can flow out shell only accounts for fraction, the not good problem of radiating effect still can't solve, and dust can gather in the enclosure, makes the radiating effect of LED street lamp inside worse and worse.
Radiator of the present invention does not arrange shell, can adopt the shell that opens wide fully, can adopt the closed shell with air vent yet, although radiator more easily accumulates dust outside being exposed to like this, its dust that gathers can not stop for a long time; Because outside radiator is exposed to, wind and rain can wash away radiator, thereby with the dust flushing of gathering, has avoided gathering for a long time of dust; Especially Tunnel Lamp is regularly used high pressure water washing, and this unenclosed construction is highly beneficial.
Preferably, described base plate is I-shaped base plate;
Or described base plate is the rectangle base plate, and breach is located at the both sides of rectangle base plate;
Or described base plate is circular bottom plate, and breach is located at the middle position of circular bottom plate;
Or described breach is located on the base plate brokenly.
Preferably, described fin is arranged in the back side of base plate, and the LED lamp plate is installed on the front of base plate.
Be that fin is corresponding with the setting position of LED lamp plate, so that heat is between the two transmitted more efficient.
Preferably, the material of described base plate and fin is aluminium alloy.
Because the heat conductivility of aluminium alloy is better, and proportion is little, so with the material of aluminium alloy as radiator, can guarantee that the radiating effect of radiator is good.
Preferably, on the described LED lamp plate several LED are arranged, Combined lens all is raised with a curved surface in the top of each LED.
Because light source changes the spatial distribution of bright dipping through meeting behind the curved surface,, Combined lens all is raised with a curved surface in the top of each LED, so that the light that each LED sends all is changed the light intensity spatial distribution, satisfies various illuminations and uses required light distribution requirements.
Preferably, by being set, waterproof apron forms the waterproof sealing chamber between described Combined lens and the base plate.
Preferably, described LED outdoor lamp optical assembly comprises Waterproof lock, and base plate is provided with entrance hole; Waterproof lock is with after entrance hole engages, and the cable that is used in conjunction with LED outdoor lamp optical assembly passes Waterproof lock, enters the waterproof sealing chamber, is electrically connected with the LED lamp plate.
Outer wall infiltration along cable when Waterproof lock being set can preventing that cable from passing entrance hole and enter the waterproof sealing chamber enters annular seal space.
Preferably, described Waterproof lock is surrounded by waterproof apron, after blind nut locking, waterproof apron can with the outer wall tight seal of cable, play waterproof action.
Preferably, described Waterproof lock is threaded with entrance hole, and both are provided with collision mat in the joint.
Preferably, be provided with the water-proof silica-gel circle between described Combined lens and the LED lamp plate.
Be provided with the water-proof silica-gel circle between Combined lens and the LED lamp plate, prevented that water from flowing to the waterproof sealing chamber that forms between base plate of radiator and the lens from the slit of Combined lens.Because LED outdoor lamp optical assembly is arranged at outdoorly, cause LED outdoor lamp optical assembly needs directly to face Exposure to Sunlight and heavy rain, so the quality of water-proof silica-gel circle is to guarantee the key of LED outdoor lamp optical assembly water resistance again; And the stable chemical nature of silica gel also is not easy oxidation, rotten under the strong or moist environment of Exposure to Sunlight, so that LED outdoor lamp optical assembly can be worked under rugged environment for a long time.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is schematic top plan view of the present invention;
Fig. 3 is schematic side view of the present invention;
Fig. 4 is the cross-sectional schematic of Waterproof lock of the present invention;
Fig. 5 is the schematic diagram that LED outdoor lamp optical assembly of the present invention is applied in street lamp.
The specific embodiment
Embodiments of the invention comprise radiator, LED lamp plate and Combined lens 5 as shown in Figures 1 to 4.
Described radiator comprises that I shape base plate 1(is that the both sides of base plate have breach) and fin 8, described fin 8 is parallel to the back side of I shape base plate 1, and extend to the breach of I shape base plate 1, wherein, above-mentioned I shape base plate 1 and fin 8 are made by aluminium alloy, because the heat conductivility of aluminium alloy is better, so with the material of aluminium alloy as radiator, the radiating effect that can guarantee radiator is good, and I shape base plate 1 and fin 8 are one-body molded.
The front of described I shape base plate 1 is provided with LED lamp plate 3, and LED lamp plate 3 places between two breach, and wherein, LED lamp plate 3 is provided with a plurality of LED lamp pearls 2, and each LED lamp pearl 2 is matrix at LED lamp plate 3 and arranges; Also be arranged with rectangular Combined lens 5 on the described LED lamp plate 3, Combined lens 5 with LED lamp plate 3 parcels in the inner, in addition, Combined lens 5 all is raised with an elliptoid curved surface 6 in the top of each LED lamp pearl 2, because light source is through meeting expanding behind the curved surface 6, namely increased shadow surface, so Combined lens 5 all is raised with a curved surface 6 in the top of each LED lamp pearl 2, so that the light that each LED2 sends can change the light intensity spatial distribution, satisfy various illuminations and use required light distribution requirements.In addition, also be provided with water-proof silica-gel circle 4 between Combined lens 5 and the LED lamp plate 3, water-proof silica-gel circle 4 is sheathed on the edge of LED lamp plate 3, to fill the gap of 3 of Combined lens 5 and LED lamp plates, plays waterproof action
Described I shape base plate 1 is provided with entrance hole, and entrance hole is threaded with Waterproof lock 7, and the Waterproof lock 7 after the connection is electrically connected with LED lamp plate 3, and Waterproof lock 7 also is provided with collision mat with the entrance hole joint; In addition, Waterproof lock 7 is with after entrance hole engages, and cable passes Waterproof lock, enters the waterproof sealing chamber that forms between I shape base plate 1 and the lens 5, is electrically connected with LED lamp plate 3.
Under normal operating position, because LED lamp pearl 2 can be heat energy with the electric energy conversion more than 50% when work, these heat energy can reach fin 8 by base plate 1, by the surface of base plate 1 and fin 8 heat energy are delivered to air at last; Therefore, near the air the fin 8 will be heated, rise.Because fin 8 extends to the indentation, there of base plate 1, make the cold air fin 8 of flowing through from below to up without heating, so indentation, there will form the rising circulation of an air, the air after the heating is seen off, can greatly improve the radiating efficiency of radiator by the Effect of Nature Convection of this vertical lifting.
In addition, be provided with water-proof silica-gel circle 4 between Combined lens 5 and the LED lamp plate 3, prevented that water from flowing in the LED outdoor lamp optical assembly from the slit of Combined lens 5; And the lead-in wire of LED lamp plate 3 Waterproof lock 7 draw, prevented that also water from flowing in the LED outdoor lamp optical assembly from the position of lead-in wire, further strengthened the water proofing property of LED outdoor lamp optical assembly.
The shape that also it may be noted that base plate is fixing, as long as base plate is provided with breach, fin extends to the path that can ventilate about the indentation, there formation and all belongs to technical scheme of the present invention; Be circular bottom plate such as base plate, breach is located at the middle position of circular bottom plate, and fin extends to indentation, there; Or breach is located on the base plate brokenly, and fin extends to indentation, there; Wherein, no matter how breach arranges, and also should keep the LED lamp plate to be in sealed environment.
In addition, Fig. 5 is the schematic diagram that LED outdoor lamp optical assembly is applied in street lamp, comprise lampshade 101, LED outdoor lamp optical assembly 102, waterproof connecting line 103, combined water proof connector 104 and power supply 105, LED outdoor lamp optical assembly 102 wherein, waterproof connecting line 103, combined water proof connector 104 and power supply 105 all place in the lampshade, power supply 105 joins by combined water proof connector 104 and waterproof connecting line 103, waterproof connecting line 103 is electrically connected with LED outdoor lamp optical assembly 102 again, is connected with the waterproof of 105 of power supplys to realize LED outdoor lamp optical assembly 102.
The improved protection domain that also is considered as patent on the basis of above embodiment.
Claims (10)
1. a LED outdoor lamp optical assembly comprises radiator, LED lamp plate and Combined lens, it is characterized in that:
Described radiator comprises base plate and fin; Base plate is provided with breach; Fin is arranged at the back side of base plate with being spaced, and extends to breach causing the path that can ventilate up and down, and fin and base plate are one-body molded;
Described Combined lens and LED lamp plate are installed on the front of base plate, and the LED lamp plate places in the Combined lens.
2. LED outdoor lamp optical assembly according to claim 1 is characterized in that:
Described base plate is I-shaped base plate;
Or described base plate is the rectangle base plate, and breach is located at the both sides of rectangle base plate;
Or described base plate is circular bottom plate, and breach is located at the middle position of circular bottom plate;
Or described breach is located on the base plate brokenly.
3. LED outdoor lamp optical assembly according to claim 2, it is characterized in that: described fin is arranged in the middle part at the I shape base plate back side, and the LED lamp plate is installed on the middle part in I shape base plate front.
4. according to claim 1 to 3 each described LED outdoor lamp optical assemblies, it is characterized in that: the material of described base plate and fin is aluminium alloy.
5. LED outdoor lamp optical assembly according to claim 1, it is characterized in that: on the described LED lamp plate several LED are arranged, Combined lens all is raised with a curved surface in the top of each LED.
6. LED outdoor lamp optical assembly according to claim 1 is characterized in that: form the waterproof sealing chamber by waterproof apron is set between described Combined lens and the base plate.
7. LED outdoor lamp optical assembly according to claim 6, it is characterized in that: described LED outdoor lamp optical assembly comprises Waterproof lock, and base plate is provided with entrance hole; Waterproof lock is with after entrance hole engages, and the cable that is used in conjunction with LED outdoor lamp optical assembly passes Waterproof lock, enters the waterproof sealing chamber, is electrically connected with the LED lamp plate.
8. LED outdoor lamp optical assembly according to claim 7, it is characterized in that: described Waterproof lock is surrounded by waterproof apron, after blind nut locking, waterproof apron can with the outer wall tight seal of cable, play waterproof action.
9. LED outdoor lamp optical assembly according to claim 8, it is characterized in that: described Waterproof lock is threaded with entrance hole, and both are provided with collision mat in the joint.
10. LED outdoor lamp optical assembly according to claim 1 is characterized in that: be provided with the water-proof silica-gel circle between described Combined lens and the LED lamp plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210392582.3A CN102954410B (en) | 2012-10-16 | 2012-10-16 | A kind of LED outdoor lamp optical assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210392582.3A CN102954410B (en) | 2012-10-16 | 2012-10-16 | A kind of LED outdoor lamp optical assembly |
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| CN102954410A true CN102954410A (en) | 2013-03-06 |
| CN102954410B CN102954410B (en) | 2015-09-09 |
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| CN201210392582.3A Expired - Fee Related CN102954410B (en) | 2012-10-16 | 2012-10-16 | A kind of LED outdoor lamp optical assembly |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196064A (en) * | 2013-04-22 | 2013-07-10 | 贵州光浦森光电有限公司 | LED (light emitting diode) bulb light engine module |
| CN103353073A (en) * | 2013-03-22 | 2013-10-16 | 杭州鸿德照明科技有限公司 | Highly efficient and environmentally protective unit combined type LED street lamp |
| CN104180192A (en) * | 2013-05-21 | 2014-12-03 | 杭州华普永明光电股份有限公司 | LED (Light Emitting Diode) module |
| WO2015051595A1 (en) * | 2013-10-11 | 2015-04-16 | 王丽娜 | Led module |
| CN104534366A (en) * | 2015-01-12 | 2015-04-22 | 南京中电熊猫照明有限公司 | LED light source module used for outdoor lamp |
| WO2015074323A1 (en) * | 2013-11-21 | 2015-05-28 | 王丽娜 | Led module |
| CN105090897A (en) * | 2014-05-09 | 2015-11-25 | 潘文莘 | Even temperature light emitting diode light bulb |
| CN114126299A (en) * | 2021-12-01 | 2022-03-01 | 深圳市涞顿科技有限公司 | Heat-dissipation and waterproof integrated outdoor power supply |
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