CN204785642U - High -power LED fluorescent lamp - Google Patents
High -power LED fluorescent lamp Download PDFInfo
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- CN204785642U CN204785642U CN201520356637.4U CN201520356637U CN204785642U CN 204785642 U CN204785642 U CN 204785642U CN 201520356637 U CN201520356637 U CN 201520356637U CN 204785642 U CN204785642 U CN 204785642U
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- daylight lamp
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Abstract
The utility model relates to a high -power LED fluorescent lamp, this high -power LED fluorescent lamp mainly comprise a cavity body, two reflection of light cups, two radiators and two LED luminous element. The utility model has the advantages of, simple structure, energy consumption are low, the light decay is little, longe -lived, the light efficiency is high, free from glare, illuminating effect are good, the characteristics of easy equipment.
Description
Technical field
The utility model relates to lighting apparatus, particularly a kind of high-power LED daylight lamp.
Background technology
Along with the constantly raising of brightness, light efficiency, lifetime stability, the advantage of the LED especially high-power LED energy-saving environmental protection utility model that heals shows, and LED being applied to lighting has been trend of the times.National green energy-saving illumination engineering is especially using the product one of of LED daylight lamp as focus development.
LED daylight lamp economize on electricity is up to more than 80%, and the life-span is more than 10 times of common fluorescent tube, there is not situations such as often changing fluorescent tube, ballast, starter, and the electricity charge in addition saved, getting off about half a year just can cost recovery.The semi-conductor electricity light source of environmental type, light is soft, and colour rendering is good, and without stroboscopic, be conducive to the sight protectio of people and healthy, the illumination difference design of hommization in addition, contributes to people and concentrate on, raise the efficiency.In addition non-maintaining, frequent switch can not cause the series of advantages such as damage, noiseless, and LED daylight lamp is the most ideal product of alternative traditional fluorescent lamp.
What existing LED daylight lamp adopted is mostly low-power LED, and compared with great power LED, it has the shortcomings such as light decay is serious, performance is unreliable, installation cost is high.Therefore, the developing direction of following LED daylight lamp is adopted great power LED to be the fluorescent lamp of light source to be.Be adopt lens to carry out luminous intensity distribution to great power LED with the immediate prior art of the utility model, see accompanying drawing 1, its LED arranges similar with the fluorescent lamp of existing employing low-power LED, and its round lamp tube half is heat radiation aluminum component, and half is PC outer cover.LED is arranged on heat radiation aluminum component, adds lens again, then outside lens, cover PC outer cover on every LEDs.Because lens are through well-designed, the fluorescent lamp of this great power LED can form the hot spot close to rectangle on shadow surface, reaches the object of illumination.But although the great power LED of this fluorescent lamp adds lens, its light source is exposed, can not solve glare problem, thus cause uncomfortable illumination, on the other hand, adopt lens luminous intensity distribution, likely cause dispersion, colour rendering declines, and adds the uneven illumination on PC cover, does not have aesthetic feeling.
Utility model content
The purpose of this utility model solves in prior art to adopt low-power LED as the problem of light source, provides a kind of novel high-power LED daylight lamp.
To achieve these goals, the technical solution of the utility model is achieved in that a kind of high-power LED daylight lamp, comprises,
One microscler hollow tube, it has a total reflection portion and cover portion composition, described total reflection portion and described cover portion are oppositely arranged;
Two reflectors, it is arranged at two ends of described hollow tube respectively;
Two radiators, it is respectively adjacent to described two reflectors, described radiator is made up of a cooling base and a plurality of radiating fin, there is in described cooling base a spatial accommodation, described radiating fin has a radial extension and a circumferential extensions, described radial extension system begins to extend radially outward from described cooling base, and described circumferential extensions system begins from the outer end of described radial extension circumferentially to extend respectively to both sides; And,
Two LED illuminator, in its described spatial accommodation being contained in described two radiators respectively and described LED illuminator is in centre at the bottom of the cup of described reflector, the exiting surface of described two LED illuminator is arranged in opposite directions.
As a kind of preferred version of high-power LED daylight lamp, the radial width of described radial extension becomes large from the inside to the outside gradually.
As a kind of preferred version of high-power LED daylight lamp, described radiator system high thermal conductivity coefficient metal obtains.Further, described high thermal conductivity coefficient metal is aluminium, copper, aluminium alloy or copper alloy.
As a kind of preferred version of high-power LED daylight lamp, the half side face in described hollow tube plates a total reflection film, form described total reflection portion; Second half side face in described hollow tube is PC or PMMA material, forms described cover portion.
As a kind of preferred version of high-power LED daylight lamp, described LED illuminator is blue-ray LED, and described cover portion is coated with fluorescent material.
As a kind of preferred version of high-power LED daylight lamp, described reflector has a Part I and a Part II, described Part I is connected with described total reflection portion, and described Part II is connected with described cover portion, and described Part I is different from the curvature of described Part II.
As a kind of preferred version of high-power LED daylight lamp, the half cup face in reflector described in described Part I system, another half cup face in reflector described in described Part II system.
As a kind of preferred version of high-power LED daylight lamp, described LED illuminator includes the first light directly shining described cover portion, the second light directly shining described total reflection portion, directly shines the 3rd light of described Part I, directly shines the 4th light of described Part II; The curvature design method of described Part I and described Part II is as follows: comprise following steps,
Calculate and only have described first light and the Illumination Distribution of described second light in described cover portion;
By above-mentioned Illumination Distribution, design the curvature of described Part II, make in Illumination Distribution described in described 4th light compensation from described LED illuminator dark space remotely; And,
Design the curvature of described Part I, by described 3rd light, leakage detection is carried out to described Illumination Distribution and fill a vacancy, make the uniform-illumination in described cover portion.
As a kind of preferred version of high-power LED daylight lamp, the length of described hollow tube is 470mm, and radius is 38.1mm; The degree of depth of described reflector is no more than 40mm, and diameter is no more than the diameter of described hollow tube; The length of described radiator is no more than 25mm, and its diameter exceedes the diameter of described hollow tube; The radius of described LED illuminator is no more than 1/3 of the radius of described hollow tube.
Compared with prior art, advantage of the present utility model at least comprises following: 1, adopt great power LED as light source, the problem that effective solution adopts the fluorescent lamp light decay of low-power LED serious.2, adopt reflector luminous intensity distribution, can not produce dispersion, lighting effect is good.3, the LED of fluorescent lamp adopts side to beat formula, and lampshade adopts mist cover, directly can not see light source, avoid dazzle, lighting.4, because reflector is well-designed, on mist cover, Illumination Distribution is even, there is not blackening, unique aesthetic feeling.5, because whole fluorescent structure is simple, reflector is well-designed without any light-blocking matter for hollow tube in addition, allow most of light through primary event with regard to outgoing, therefore light extraction efficiency is high as far as possible.6, excellent heat dissipation performance, ensures the normal work of great power LED.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art.
Fig. 2 is the structural upright schematic diagram of an embodiment in the utility model.
Fig. 3 is the structural representation of radiator in an embodiment in the utility model.
Fig. 4 is the structural plan schematic diagram of an embodiment in the utility model.
Fig. 5 is the ray tracing figure of an embodiment in the utility model.
Fig. 6 is the Illumination Distribution figure of an embodiment in the utility model.
Fig. 7 is the 3D effect figure of LED daylight lamp exit facet in an embodiment in the utility model.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is elaborated.
Refer to Fig. 1 and 4, being that a kind of structure is simple, energy consumption is low, light decay is little, the life-span is long, light efficiency is high, free from glare, good illumination effect, being easy to the high-power LED daylight lamp assembled shown in figure, this high-power LED daylight lamp forms primarily of a hollow tube 1, two reflectors 2, two radiators 3 and two LED illuminator 4.
Described hollow tube 1 is elongate structure.First side face in described hollow tube 1 plates a total reflection film, forms a total reflection portion 11.Described total reflection portion 11 is for reflection.Second side face in described hollow tube 1 is PC or PMMA material, forms a cover portion 12.Described cover portion 12, for bright dipping, is the exiting surface of LED daylight lamp.In the present embodiment, the length of described hollow tube 1 is 470mm, and radius is 38.1mm.
Described two reflectors 2 are arranged at two ends of described hollow tube 1 respectively, that is, can see in figure, and the cup-mouth end of described reflector 2 is connected with described hollow tube 1.Further, described reflector 2 is rotation asymmetry structure.First side face of described reflector 2 is a Part I 21, and described Part I 21 is connected with described total reflection portion 11.Second side face of described reflector 2 is a Part II 22, and described Part II 22 is connected with described cover portion 12.Described Part I 21 has different curvature characteristic from described Part II 22.In the present embodiment, the degree of depth of described reflector 2 is no more than 40mm, and diameter is no more than the diameter of described hollow tube 1.
Described two radiators 3 adjacent to described two reflectors 2, that is, can be seen in figure respectively, and described radiator 3 is connected with the cup bottom of described reflector 2.Refer to Fig. 3, each described radiator 3 is made up of a cooling base 31 and a plurality of radiating fin 32.In described cooling base 31, there is a spatial accommodation.Described radiating fin 32 has radial extension 321 and a circumferential extensions 322.Described radial extension 321 is begin to extend radially outward from described cooling base 31, and the radial width of described radial extension 321 becomes large from the inside to the outside gradually.Described circumferential extensions 322 is begin from the outer end of described radial extension 321 circumferentially to extend respectively to both sides, and from figure, the approximate English alphabet of cross section structure of described radiating fin 32 is "T"-shaped.Under identical size, the design's structure has larger area of dissipation, and designs for the heat dissipation characteristics of fluorescent lamp, better heat-radiation effect.In addition, the diameter (i.e. the external diameter of described radiating fin 32) of described radiator 3 exceedes the diameter of described hollow tube 1, can keep well-ventilated like this, be beneficial to heat radiation.Be exactly that described radiator 3 is that high thermal conductivity coefficient metal obtains in addition.Further, described high thermal conductivity coefficient metal is aluminium, copper, aluminium alloy or copper alloy.Preferred employing aluminium, because the thermal diffusivity of aluminium is good, is conducive to LED heat radiation, and can recycles after discarding, do not pollute the environment, meet green, this general requirement of energy-saving and environmental protection.In the present embodiment, the length of described radiator 3 is no more than 25mm.
Described two LED illuminator 4 are contained in the described spatial accommodation of described two radiators 3 respectively.Described two LED illuminator 4 adopt great power LED, and great power LED refers to the light emitting diode having large rated operational current.Common LED power is generally 0.05W, operating current is 20mA, and great power LED can reach 1W, 2W, even tens of watts, operating current can be tens milliamperes to hundreds of milliampere not etc.In addition, described LED illuminator 4 extends at the bottom of the cup of described reflector 2, and is in the centre at the bottom of cup of described reflector 2.The exiting surface of described two LED illuminator 4 is arranged in opposite directions, that is, the bright dipping task of its place end of respective primary responsibility.The radius of described LED illuminator 4 is no more than 1/3 of the radius of described hollow tube 1.
In addition, it is pointed out that the present embodiment only enumerates the situation of a hollow tube 1, but according to the raising of fluorescent lamp power or other factors, may be configured with many hollow tubes 1.
Refer to Fig. 4 to 7 again, before mention described reflector 2 described Part I 21 from described Part II 22, there is different curvature characteristic, now illustrate.The situation of institute's emergent ray of described LED illuminator 4 is shown in Fig. 4, can see, the emergent ray of described LED illuminator 4 includes the first light directly shining described cover portion 12, the second light directly shining described total reflection portion 11, directly shines the 3rd light of described Part I 21, directly shines the 4th light of described Part II 22.First, calculate and only have described first light and the Illumination Distribution of described second light in described cover portion 12.Calculating shows, from described LED illuminator 4 more away from place darker, nearer place is brighter.Then, design the curvature of described Part II 22, make described 4th light compensate for slower dark space at a distance more effectively.Wherein, the curvature design of reflector 2 is those skilled in the art's known techniques, can adopt accurate numerical method, reflector 2 is divided into many parts, the size of this part is determined according to the light flux distribution on every part, then by regulating the slope of every part ray cast to the region of specifying.By described Part II 22, the Illumination Distribution in described cover portion 12 is more even.Finally, design the curvature of described Part I 21, by described 3rd light, leakage detection is carried out to described Illumination Distribution and fill a vacancy, make the uniform-illumination in described cover portion 12.As shown in the ray tracing of Fig. 5, the distribution of light of this fluorescent lamp is consistent with the distribution of light (shown in Fig. 4) reached required during design.This illustrates that the luminous intensity distribution of this fluorescent lamp obtains identical effect on theory calculate and emulation.As seen from Figure 6, the Illumination Distribution obtained after the emergent ray emulation of described LED illuminator 4, illumination is even.And the design sketch display emulated from light the Fig. 7 obtained, the bright dark space in cover portion 12 cannot distinguish from naked eyes, reaches re-set target.
Another embodiment of the present utility model is, compared with front embodiment, LED illuminator 4 adopts blue-ray LED, and cover portion 12 uses the lampshade coating fluorescent material instead, also can reach the object making fluorescent lamp.
Below only have expressed embodiment of the present utility model, it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (9)
1. a high-power LED daylight lamp, is characterized in that, comprises,
One microscler hollow tube, it has a total reflection portion and cover portion composition, described total reflection portion and described cover portion are oppositely arranged;
Two reflectors, it is arranged at two ends of described hollow tube respectively;
Two radiators, it is respectively adjacent to described two reflectors, described radiator is made up of a cooling base and a plurality of radiating fin, there is in described cooling base a spatial accommodation, described radiating fin has a radial extension and a circumferential extensions, described radial extension system begins to extend radially outward from described cooling base, and described circumferential extensions system begins from the outer end of described radial extension circumferentially to extend respectively to both sides; And,
Two LED illuminator, in its described spatial accommodation being contained in described two radiators respectively and described LED illuminator is in centre at the bottom of the cup of described reflector, the exiting surface of described two LED illuminator is arranged in opposite directions, and preferably, described LED illuminator selects great power LED.
2. a kind of high-power LED daylight lamp according to claim 1, is characterized in that, the radial width of described radial extension becomes large from the inside to the outside gradually.
3. a kind of high-power LED daylight lamp according to claim 1 and 2, is characterized in that, described radiator system high thermal conductivity coefficient metal obtains.
4. a kind of high-power LED daylight lamp according to claim 3, is characterized in that, described high thermal conductivity coefficient metal is aluminium, copper, aluminium alloy or copper alloy.
5. a kind of high-power LED daylight lamp according to claim 1, is characterized in that, the half side face in described hollow tube plates a total reflection film, forms described total reflection portion; Second half side face in described hollow tube is PC or PMMA material, forms described cover portion.
6. a kind of high-power LED daylight lamp according to claim 1 or 5, it is characterized in that, described LED illuminator is blue-ray LED, and described cover portion is coated with fluorescent material.
7. a kind of high-power LED daylight lamp according to claim 1, it is characterized in that, described reflector has a Part I and a Part II, described Part I is connected with described total reflection portion, described Part II is connected with described cover portion, and described Part I is different from the curvature of described Part II.
8. a kind of high-power LED daylight lamp according to claim 7, is characterized in that, the half cup face in reflector described in described Part I system, another half cup face in reflector described in described Part II system.
9. a kind of high-power LED daylight lamp according to claim 1, is characterized in that, the length of described hollow tube is 470mm, and radius is 38.1mm; The degree of depth of described reflector is no more than 40mm, and diameter is no more than the diameter of described hollow tube; The length of described radiator is no more than 25mm, and its diameter exceedes the diameter of described hollow tube; The radius of described LED illuminator is no more than 1/3 of the radius of described hollow tube.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520356637.4U CN204785642U (en) | 2015-05-29 | 2015-05-29 | High -power LED fluorescent lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520356637.4U CN204785642U (en) | 2015-05-29 | 2015-05-29 | High -power LED fluorescent lamp |
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| CN204785642U true CN204785642U (en) | 2015-11-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106287324A (en) * | 2015-05-29 | 2017-01-04 | 上海时代之光照明电器检测有限公司 | A kind of high-power LED daylight lamp |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106287324A (en) * | 2015-05-29 | 2017-01-04 | 上海时代之光照明电器检测有限公司 | A kind of high-power LED daylight lamp |
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