CN103697417A - Light-adjustable LED (Light Emitting Diode) lamp with large power and high color rendering property - Google Patents
Light-adjustable LED (Light Emitting Diode) lamp with large power and high color rendering property Download PDFInfo
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- CN103697417A CN103697417A CN201410015761.4A CN201410015761A CN103697417A CN 103697417 A CN103697417 A CN 103697417A CN 201410015761 A CN201410015761 A CN 201410015761A CN 103697417 A CN103697417 A CN 103697417A
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Abstract
The invention relates to a light-adjustable LED (Light Emitting Diode) lamp with large power and high color rendering property. The light-adjustable LED lamp comprises an upper end cover, a light-outgoing window, a main shell, a plurality of side-wall LED modules, an upper prism platform, a lower prism platform, a lower-end LED module and a lower shell, wherein the plurality of side-wall LED modules are arranged in the main shell; the upper prism platform and the lower prism platform are plated with a semitransparent and semireflective optical film and are fixed in a central cavity body of the main shell; each side-wall LED module comprises an upper LED and a lower LED which are two of red-green-blue single-color LEDs; the other single-color LED is arranged on the corresponding position of the lower-end LED module; lights emitted by the red-green-blue single-color LEDs are mixed by the upper prism platform and the lower prism platform; all the LED modules are directly and fixedly connected with the main shell or the lower shell provided with radiating fins respectively, so that the radiating effect is good; three groups of independent driving and control circuits respectively drive and adjust the light-emitting intensity of three types of single-color LEDs, the proportion of three base colors can be flexibly adjusted according to the environment so as to adapt to the requirement for high color rendering property at different occasions.
Description
Technical field
The present invention relates to field of photoelectric technology, particularly a kind of LED light fixture of high-power high-color rendering tunable optical.
Background technology
The outer illumination of general room and photography, shooting, museum, under water etc. various special lighting occasions are all more and more higher to the requirement of the power of LED light fixture and colour rendering.
The LED light fixture technology content of high-color rendering is higher, belongs to high-end product, very important for the international competitiveness that improves China LED industry.Improve colour rendering, need in principle the combination of RGB three primary colours, main implementation method has three kinds at present: many primary colours fluorescent material, RGB combined chip or blue chip add multicolor phosphor.These methods are all in the encapsulating structure of single led lamp pearl, directly to realize the mixing of light, prepare white LED lamp pearl, and then prepare light fixture product with single or multiple white LED lamp pearl combinations.The light mixing effect of this class light fixture is comparatively desirable, but the adjusting of photochromic quality difficulty is difficult to the variation of adaptating lighting environment.For example, under land lighting condition, air quality changes, or underwater lighting Water Under body composition is when change, and in light fixture emergent light, the light of different wave length is scattered and the relative extent that absorbs also can change.If the photochromic of light fixture can not effectively regulate thereupon, just, by greatly affecting actual illuminating effect, cannot meet the requirement of high-color rendering under varying environment condition.
Meanwhile, along with the power of light fixture is increasing, heat dissipation problem is also more and more outstanding.Bad if dispelled the heat, the rising of temperature, can cause light decay and the photochromic variation of LED, reduces colour rendering, and greatly shortens the life-span of LED.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned problems of the prior art, a kind of compact conformation, rapid heat dissipation, high-power, tunable optical is provided, can under different lighting environments, guarantees the LED lamp of high-color rendering.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of high-power high-color rendering light-adjustable LED lamp, it is provided with main casing, lower house, described main casing upper end is installed with light-emitting window and upper end cover, main casing lower end and lower house are connected and fixed, anchor tip is installed in lower house bottom centre hole, by anchor tip, lock and attached cable, it is characterized in that: described main casing madial wall is vertically provided with some grooves, one group of sidewall LED module is housed on each groove perpendicular, every group of sidewall LED module is by aluminium base, a high-power red-light LED and supporting reflector, a high-power green light LED and supporting reflector form, main casing central authorities are fixed with prism platform, lower prism platform and lower end LED module from top to bottom successively, on the outer surface of described upper prism platform and lower prism platform, be coated with semi-transparent semi-reflecting optical thin film, optical thin film reflection wavelength in upper prism platform is greater than the light of 630 nm and transmission peak wavelength is less than the light of 600 nm, optical thin film reflection wavelength in lower prism platform is greater than the light of 490 nm and transmission peak wavelength is less than the light of 450 nm, and each prism facets of upper prism platform and lower prism platform is all 45 with the bottom surface of respective prisms platform
oangle, described lower end LED module consists of the large power white light LED of aluminium base, central authorities and high-power blue-ray LED and the supporting reflector of installing of around evenly arranging, on outer wall corresponding to described main casing further groove, be vertically provided with cell wall fin, on the outer wall between groove, be also vertically provided with fin between groove, described lower house outer wall is also provided with fin, in lower house, is electrical equipment cavity, is built-in with LED and drives and control module, described LED drives and control module adopts high precision constant current chip, and wide input voltage design, by the PWM technology light modulation of pulse width modulation, whole driving and control module are divided into red-light LED driving and control circuit, green light LED driving and control circuit, lower end LED drives and three of control circuits circuit independently, are used for respectively controlling blue light and the white light LEDs in ruddiness, green glow and lower end LED module.
In above-mentioned high-power high-color rendering Dimmable LED modulated structure, described main casing inwall is provided with prism platform and lower prism platform draw-in groove, the coign of described upper prism platform and lower prism platform bottom surface is arranged in the corresponding draw-in groove of main casing, guarantees to install rear prism platform and can not rotate in main casing inner chamber; Each prism facets central point of described upper prism platform and lower prism platform lays respectively on the red-light LED of relevant position and the optical axis of green light LED.
In above-mentioned high-power high-color rendering Dimmable LED modulated structure, the junction between described upper end cover and light-emitting window, light-emitting window and main casing is respectively equipped with upper end cushion pad and light-emitting window cushion pad.
Advantage of the present invention and effect: adopt said structure, the emergent light of the high-power high-color rendering light-adjustable LED lamp of the present invention is that the emergent light of ruddiness in main casing sidewall LED module and the blue-ray LED in green light LED and lower end LED module is through upper end prism platform and lower end prism platform back mixing light, and the white light LEDs light filling gained in the LED module of lower end, the light that each LED sends is fully utilized, can obtain desirable light mixing effect, obtain high-color rendering.Driving and the control circuit of ruddiness, green glow and blue-ray LED are separate, and the photochromic flexible modulation as required of emergent light makes light fixture adapt to different external environment requirements.
Another advantage of the present invention is that upper end cover, main casing and lower house all adopt highly heat-conductive material.The madial wall of main casing is designed with groove structure, and lateral wall and the lateral wall between groove that groove is corresponding are respectively equipped with fin between cell wall fin and groove.Sidewall LED module is arranged on the perpendicular of main casing groove by heat-conducting glue, forms good heat radiation.The aluminium base of lower end LED module is connected and fixed by metal lock-screw and main casing and lower house, and lower house outer wall is also provided with fin, and the heat producing during the work of lower end LED module outwards distributes through main casing and lower house, has equally good heat radiation.
Further advantage of the present invention is the sidewall that ruddiness and green light LED are arranged on main casing, make fitting structure compact, effectively reduced the overall volume of light fixture, under identical light fixture diameter, can hold more LED, make full use of main casing and lower house dispels the heat simultaneously, can guarantee photochromic stablely, and extend service life of light fixture.Whole lamp installation is convenient, rational in infrastructure, and maintenanceability can be good.
Accompanying drawing explanation
Accompanying drawing 1 is the perspective exploded view of one embodiment of the present invention.
Whole sectional structure schematic diagram after the Standard that accompanying drawing 2 is Fig. 1.
The master of the sidewall LED module that accompanying drawing 3 is Fig. 1 looks schematic diagram.
Accompanying drawing 4 holds the master of LED module to look schematic diagram under Fig. 1.
Number in the figure is: 1. lock-screw; 2. upper end cover; 3. upper end cover cushion pad; 4. light-emitting window; 5. light-emitting window cushion pad; 6. go up prism platform; 7. descend prism platform; 8. sidewall LED module; 81. high-power red-light LEDs; 82. supporting reflector; 83. high-power green light LEDs; 84. supporting reflectors; 85. aluminium bases; 9. main casing; 90. grooves; 91. cell wall fin; Fin between 92. grooves; 93. draw-in grooves; 10. lower end LED module; 101. high-power blue-ray LEDs; 102. large power white light LED; 103. supporting reflectors; 104. aluminium base; 105. connect wire through hole; 106. install through hole; 11. LED drive and control module; 111. red-light LEDs drive and control circuit; 112. green light LEDs drive and control circuit; 113. lower end LED drives and control circuit; 12. lower houses; 121. lower house fin; 13. anchor tips; 14. lock-screws; 15. cables.
The specific embodiment
Shown in accompanying drawing 1-accompanying drawing 4, it is preferred embodiment schematic diagram of the present invention.A kind of high-power high-color rendering light-adjustable LED lamp of the present invention, it is provided with main casing 9, lower house 12, described main casing 9 upper ends are installed with light-emitting window 4 and upper end cover 2, main casing 9 lower ends and lower house 12 are connected and fixed, lower house 12 bottom centre's wire holes are installed anchor tip 13, by anchor tip, lock and attached cable 15.Specifically: in lamp body, main casing 9 upper ends are connected with upper end cover 2 by some lock-screws 1, light-emitting window 4 is clipped between main casing 9 and upper end cover 2 fixing, is respectively equipped with upper end cover cushion pad 3 and light-emitting window cushion pad 5 between upper end cover 2 and light-emitting window 4 and between light-emitting window 4 and main casing 9.Described main casing 9 madial walls are vertically provided with some grooves 90, one group of sidewall LED module 8 is housed on each groove perpendicular, and every group of sidewall LED module 8 consists of aluminium base 85, a high-power red-light LED 81 and supporting reflector 82, high-power green light LED 83 and supporting reflector 84.The inwall of main casing 9 everywhere groove 90 structures is vertical plane, by heat-conducting glue, fixes a sidewall LED module 8.Main casing 9 central authorities are fixed with prism platform 6, lower prism platform 7 and lower end LED module 10 from top to bottom successively.Somely be radial equally distributed high-power blue-ray LED 101 and be positioned at a large power white light LED 102 of center and supporting reflector 103 is fixed on and on aluminium base 104, forms lower end LED module 10.Aluminium base 104 is provided with the through hole 106 of some installation lock-screw 14 use and somely connects the through hole 105 that wire is used.Lower house 12 is connected and fixed by some metal lock-screws 14 and aluminium base 104 and main casing 9.Upper prism platform 6 and lower prism platform 7 are clipped between reflector 103 and light-emitting window 4 fixing.The cavity of lower house 12 is built-in with LED and drives and control module 11.LED drives and control module 11 adopts high precision constant current chip, and wide input voltage design, by the PWM technology light modulation of pulse width modulation.Whole driving and control module are divided into red-light LED and drive and control circuit 111, and green light LED drives and control circuit 112 and lower end LED driving and control circuit 113.Lower end LED drives and control circuit 113 drives simultaneously and control blue-ray LED 101 and white light LEDs 102.Driving and control circuit 111,112 and 113 are separate, can independently regulate the luminous intensity of ruddiness, green glow and blue-ray LED, make the emergent light that mixed light obtains later have high colour rendering and photochromic adjustable.LED drives and the concrete composition structure of control module 11 belongs to prior art, repeats no more.
As shown in Figure 1 and Figure 2, the light source in the present invention, by organizing sidewall LED module 8 and lower end LED module 10 forms, comprises some great power LEDs more.Sidewall LED module 8 is directly installed on by heat-conducting glue on the perpendicular of main casing 9 inboard wall groove structures, has greatly reduced integral diameter and the volume of light fixture.During use, the heat that sidewall LED module 8 sends can directly distribute by main casing 9.Lower end LED module 10 is by some metal lock-screws 14 and main casing 9 and lower house 12 close contacts, on contact-making surface, apply thermal grease conduction, the heat dissipation channel that contact-making surface and metal lock-screw 14 form, can make the heat that lower end LED module 10 sends distribute by main casing 9 and lower house 12.Main casing 9 outer walls are provided with fin 92 between cell wall fin 91 and groove, and lower house 12 outer walls are also provided with fin 121, guarantee good heat radiation, effectively reduce junction temperature, extend the service life of great power LED.
Shown in accompanying drawing 1-accompanying drawing 4, described main casing 9 inwalls are provided with prism platform 6 and lower prism platform 7 draw-in grooves 93, the coign of described upper prism platform 6 and lower prism platform 7 bottom surfaces is arranged in the corresponding draw-in groove 93 of main casing, guarantees to install rear prism platform and can not rotate in main casing inner chamber.The outer surface of upper prism platform 6, except upper bottom surface, is all coated with semi-transparent semi-reflecting optical thin film, can reflection wavelength be greater than the light of 630nm and transmission peak wavelength is less than the light of 600nm.Each prism facets central point of upper prism platform 6 lays respectively on the optical axis of red-light LED 81 of relevant position.The outer surface of lower prism platform 7, except upper bottom surface, is all coated with semi-transparent semi-reflecting optical thin film, can reflection wavelength be greater than the light of 490nm and transmission peak wavelength is less than the light of 450nm.Each prism facets central point of lower prism platform 7 lays respectively on the optical axis of green light LED 83 of relevant position.Prism platform 6 and the direct outgoing of lower prism platform 7 on the light transmission that blue-ray LED 101 in lower end LED module 10 sends; The light that in sidewall LED module 8, green glow LED83 sends is upwards reflected by lower prism platform 7, and sees through upper prism platform 6 outgoing; The light that red-light LED 81 sends is directly upwards reflected, and mixes with the emergent light of green light LED 83 and blue-ray LED 101 by upper prism platform 6, forms the emergent light with high-color rendering.The light that white light LEDs 102 sends, directly by not plating the direct outgoing in position of semi-transparent semi-reflecting film in upper prism platform 6 and lower prism platform 7 between bottom surface, is avoided occurring blackening in the center of light fixture emergent light, is played light filling effect.Light mixing way light mixing effect of the present invention is desirable, and the light utilization efficiency that each LED module sends is high.Driving and regulating circuit 11 can independently be controlled the luminous intensity of ruddiness, green glow and blue-ray LED, avoid making due to the difference of three kinds of LED light decays of red, green, blue the problem of mixed photo-labile, can change flexibly the photochromic of emergent light after mixed light, the variation of adaptating lighting environment and the lighting requirement under different situations simultaneously.
Shown in accompanying drawing 1-accompanying drawing 4, the position of high-power ruddiness, green glow and blue-ray LED can exchange.Correspondingly, the transmission that optical thin film allows that upper prism platform 6 and lower prism platform 7 outer surfaces plate and the light wavelength scope of reflection need coordinate with the photochromic of LED on relevant position.But due to red, green, the light decay of blue three kinds of LED is different with luminous efficiency, in the present embodiment, high-power red-light LED 81 is from top to bottom fixed on successively on aluminium base 85 and forms sidewall LED module 8 with supporting reflector 82 together with 84 with high-power green light LED 83, high-power blue-ray LED 101 and large power white light LED 102 and supporting reflector 103 are fixed on and on aluminium base 104, form lower end LED module 10, can reduce to greatest extent the decay in light path of light that red-light LED 81 sends, guarantee that the light that green light LED 83 sends is also fully utilized simultaneously, can effectively improve the efficiency of light fixture, balance is red, green, blue three kinds of drive currents that LED is required, reasonable distribution and utilize the energy, it is embodiment preferably.
Here it should be noted that on main casing 9 walls, to have six, eight or more groove structure.Correspondingly, upper prism platform 6 and lower prism platform 7 are required to be six terrace with edges, eight terrace with edges etc., and the high-power blue-ray LED 101 in the LED module of lower end also should be six, eight or more.Meanwhile, the above-mentioned LED module of respectively organizing also can be arranged in pairs or groups and used various supporting lens, to change the beam angle of emergent light.
Of the present invention simple in structure, scientific and reasonable, good heat dissipation, assembling is easily.Shown in accompanying drawing 1-accompanying drawing 4, be only preferably embodiment of the present invention, not with this, limit the scope of application of the present invention, therefore all, making equivalent change in the principle of the invention all should be included in protection scope of the present invention.
Claims (4)
1. a high-power high-color rendering light-adjustable LED lamp, it is provided with main casing, lower house, described main casing upper end is installed with light-emitting window and upper end cover, main casing lower end and lower house are connected and fixed, anchor tip is installed in lower house bottom centre hole, by anchor tip, lock and attached cable, it is characterized in that: described main casing madial wall is vertically provided with some grooves, one group of sidewall LED module is housed on each groove perpendicular, every group of sidewall LED module is by aluminium base, a high-power red-light LED and supporting reflector, a high-power green light LED and supporting reflector form, main casing central authorities are fixed with prism platform, lower prism platform and lower end LED module from top to bottom successively, on the outer surface of described upper prism platform and lower prism platform, be coated with semi-transparent semi-reflecting optical thin film, optical thin film reflection wavelength in upper prism platform is greater than the light of 630 nm and transmission peak wavelength is less than the light of 600 nm, optical thin film reflection wavelength in lower prism platform is greater than the light of 490 nm and transmission peak wavelength is less than the light of 450 nm, and each prism facets of upper prism platform and lower prism platform is all 45 with the bottom surface of respective prisms platform
oangle, described lower end LED module consists of the large power white light LED of aluminium base, central authorities and high-power blue-ray LED and the supporting reflector of installing of around evenly arranging, on outer wall corresponding to described main casing further groove, be vertically provided with cell wall fin, on the outer wall between groove, be also vertically provided with fin between groove, in described lower house, be electrical equipment cavity, be built-in with LED and drive and control module, described LED drives and control module adopts high precision constant current chip, and wide input voltage design, by the PWM technology light modulation of pulse width modulation, whole driving and control module are divided into red-light LED driving and control circuit, green light LED driving and control circuit, lower end LED drives and three of control circuits circuit independently, are used for respectively controlling blue light and the white light LEDs in ruddiness, green glow and lower end LED module.
2. high-power high-color rendering light-adjustable LED lamp according to claim 1, it is characterized in that: described main casing inwall is provided with prism platform and lower prism platform draw-in groove, the coign of described upper prism platform and lower prism platform bottom surface is arranged in the corresponding draw-in groove of main casing; Each prism facets central point of described upper prism platform and lower prism platform lays respectively on the red-light LED of relevant position and the optical axis of green light LED.
3. high-power high-color rendering light-adjustable LED lamp according to claim 1, is characterized in that: the junction between described upper end cover and light-emitting window, light-emitting window and main casing is respectively equipped with upper end cushion pad and light-emitting window cushion pad.
4. high-power high-color rendering light-adjustable LED lamp according to claim 1, is characterized in that: described lower house outer wall is also provided with fin.
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| CN201410015761.4A CN103697417B (en) | 2014-01-14 | 2014-01-14 | A kind of LED of high-power high-color rendering tunable optical |
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| CN201410015761.4A CN103697417B (en) | 2014-01-14 | 2014-01-14 | A kind of LED of high-power high-color rendering tunable optical |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107007943A (en) * | 2017-05-18 | 2017-08-04 | 深圳市冠生康科技有限公司 | Portable meridian energy instrument |
| CN111678058A (en) * | 2020-05-20 | 2020-09-18 | 哈尔滨工业大学（威海） | High-power underwater LED lamp based on conformal circuit |
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| KR20030093726A (en) * | 2002-06-05 | 2003-12-11 | 김재일 | Lamp of lighting |
| US20040165379A1 (en) * | 2003-02-25 | 2004-08-26 | Ryan Waters | LED light apparatus and methodology |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107007943A (en) * | 2017-05-18 | 2017-08-04 | 深圳市冠生康科技有限公司 | Portable meridian energy instrument |
| CN111678058A (en) * | 2020-05-20 | 2020-09-18 | 哈尔滨工业大学（威海） | High-power underwater LED lamp based on conformal circuit |
| CN111678058B (en) * | 2020-05-20 | 2022-08-19 | 哈尔滨工业大学（威海） | High-power underwater LED lamp based on conformal circuit |
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