CN103225751A - LED illuminator with long-distance fluorescent powder structure - Google Patents
LED illuminator with long-distance fluorescent powder structure Download PDFInfo
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- CN103225751A CN103225751A CN2012100220375A CN201210022037A CN103225751A CN 103225751 A CN103225751 A CN 103225751A CN 2012100220375 A CN2012100220375 A CN 2012100220375A CN 201210022037 A CN201210022037 A CN 201210022037A CN 103225751 A CN103225751 A CN 103225751A
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Abstract
The invention discloses an LED illuminator with a long-distance fluorescent powder structure. The LED illuminator comprises a radiator, a printedcircuit board provided with an upper surface and a lower surface, a diffusion casing and thefluorescent powder structure, wherein the diffusion casing is mounted on the radiator and provided with a body part and wall parts extending from the surface, facing toward the printing circuit board, of the body part to the printing circuit board; the fluorescent powder structure is fixed to the wall parts in the positions, at a preset distance to the upper ends of the wall parts, of the wall parts; the areas, located between the printing circuit board and the fluorescent powder structure, on the inner surfaces of the wall parts are coated with a reflecting material; the area, facing the fluorescent powder structure, on the lower surface of the printing circuit board, is also coated with a reflecting material; the upper ends of the wall parts are contacted with the lower surface of the printing circuit board and enable an LED to be located in a range limited at the upper ends; and the preset distance is set in the distance that enables light emitted by the LED are basically and wholly irradiated to the top surface of the fluorescent powder structure. The invention further discloses a method for assembling the LED illuminator with the long-distance fluorescent powder structure.
Description
Technical field
The present invention relates to a kind of LED luminaire, particularly have the LED luminaire of remote fluorescence powder structure.
Background technology
In recent years, occurred many designs on the market, comprised remodeling that makes size be suitable for conventional luminaire (T5/T8) and Down lamp etc. based on each coloured light LED external packing.These LED luminaires can have the longer life-span, more conserve energy and more environmental protection.
But these LED luminaires still have in some respects makes them that a plurality of shortcomings of broader applications can not be arranged.These aspects for example comprise light distributing homogeneity, colour properties, colour stability, efficient and cost etc.For example say, occurred the white light LEDs fluorescent tube that has the white light LEDs T8 fluorescent tube of transparent outer cover and have the diffusivity extended envelope in the prior art.But preceding a kind of fluorescent tube has unsettled light to distribute, and a kind of fluorescent tube in back has low optical efficiency.And the heat that lamp produces makes the fluorescent material degradation, and this causes gamut again.In addition, (CRI) is low for the colour rendering index of these two kinds of lamps, is generally 70-80.Moreover the cost of these two kinds of lamps is more than conventional fluorescent lamp height.
On the other hand, the remote fluorescence powder occurs as a kind of potential technology, and even light distribution, longer fluorescent material life-span and better color stability can be provided.
But a distinct disadvantage of remote fluorescence powder scheme is that when luminaire is in closed condition appearance presents the color of applied fluorescent material.For example when having used the fluorescent material of jaundice light, luminaire appearance when being in closed condition presents faint yellow, and when having used the fluorescent material of green light, luminaire appearance when being in closed condition presents green.Thereby the problem that need to solve is how to use the remote fluorescence powder on the LED luminaire, makes when the LED luminaire cuts out appearance not be the color of applied fluorescent material.
In addition, the remote fluorescence powder product of Philip Fortimo series has appearred also on the market, for example LED DLM (Down lamp module) system, Food system, LED LLM (linear modulation) system and coilable Down lamp module etc.But use the scheme of remote fluorescence powder for these, fluorescent material is coated on directly that luminaire covers or mixes mutually with the luminaire lid, thereby appearance still is the color of applied fluorescent material when the luminaire closed condition.The consumer may can not accept this point.And fluorescent material is coated on luminaire and covers and can cause the use amount of phosphor material powder excessive, is unfavorable for saving cost.
Summary of the invention
An object of the present invention is to provide a kind of LED luminaire with remote fluorescence powder structure, this LED luminaire appearance when closing is not the color of applied fluorescent material.
Another object of the present invention provides a kind of LED luminaire with remote fluorescence powder structure, and the use amount of fluorescent material is minimized in this LED luminaire.
Another purpose of the present invention provides a kind of LED luminaire with remote fluorescence powder structure with high optical efficiency.
Also purpose of the present invention provides a kind of simple in structure and LED luminaire with remote fluorescence powder structure of being easy to assemble.
To achieve these goals, according to an aspect of the present invention, provide a kind of LED luminaire, having comprised: radiator with remote fluorescence powder structure; Printed circuit board (PCB), described printed circuit board (PCB) has upper surface and lower surface, and described upper surface is fixed to described radiator, and described lower surface is provided with LED; Diffusivity shell, described diffusivity shell be mounted to described radiator and have body and from described body towards the surface of described printed circuit board (PCB) to the wall portion that described printed circuit board (PCB) extends; And phosphor structure, described phosphor structure is fixed to described wall portion at the one preset distance place, upper end of the described wall of the distance portion of described wall portion, zone on the inner surface of described wall portion between described printed circuit board (PCB) and described phosphor structure is coated with reflecting material, and also be coated with reflecting material with zone that described phosphor structure is faced mutually on the described lower surface of described printed circuit board (PCB), wherein, described wall portion described goes up the lower surface of the described printed circuit board (PCB) of end in contact and makes described LED be positioned at described upper end institute restricted portion, and described preset distance is arranged so that the basic full illumination of light that described LED sends is to the end face of described phosphor structure.
Preferably, described LED luminaire is a tube lamp, and described body is part cylindrical shape roughly, and described wall portion is for from extend in parallel to described printed circuit board (PCB) towards the described surface of described printed circuit board (PCB) two of described body wall respect to one another portion.
Perhaps, described LED luminaire is a tube lamp, described body is part cylindrical shape roughly, and described wall portion is for drawing close two of tilting extend respect to one another wall portion towards the described surface of described printed circuit board (PCB) to described printed circuit board (PCB) from described body.
Preferably, described LED luminaire is a Down lamp, described body is the general planar shape and is not parts independently with described wall part, and described wall portion is the wall portion from the general cylindrical shape of extending to described printed circuit board (PCB) towards the described surface of described printed circuit board (PCB) of described body.
Perhaps, described LED luminaire is a Down lamp, described body is the general planar shape and is not parts independently with described wall part, described wall portion for from the hollow of extending to described printed circuit board (PCB) of described body towards the described surface of described printed circuit board (PCB), diameter reduces gradually in the form of a truncated cone wall portion roughly.
Preferably, described phosphor structure is a tabular.Perhaps, described phosphor structure is the curved surface shape.
Preferably, described phosphor structure is mounted to the described wall portion of described diffusivity shell by removably.
Preferably, the inner surface of described two wall respect to one another portions of described diffusivity shell is being provided with first fixture respectively apart from described preset distance place, described upper end, and described phosphor structure is fixed to described diffusivity shell by described first fixture.
More preferably, the projection that has groove that described first fixture is extended in opposite directions for the inner surface approximate horizontal ground from described two wall respect to one another portions of described diffusivity shell, described phosphor structure snaps in the described groove.
Further preferably, the described projection that has a groove vertically forming continuously along described LED luminaire.
What perhaps, the described projection that has groove was a plurality of and a plurality of described projectioies that have a groove along described LED luminaire is longitudinally-spaced.
Preferably, the inner surface of described two wall respect to one another portions of described diffusivity shell is being provided with first fixture apart from described preset distance place, described upper end, described phosphor structure has second fixture that can fixedly connected with described first fixture, and described phosphor structure is fixed to described diffusivity shell by described first fixture and fixedlying connected of described second fixture.
More preferably, the projection that described first fixture is extended in opposite directions for the inner surface from described two wall respect to one another portions of described diffusivity shell, described projection has from the upwardly extending fixture of described convex upper surface, and described second fixture is hole that the lower surface of the both sides of the described diffusivity shell of being mounted to of described phosphor structure has respectively, that can cooperate with described fixture.
Perhaps, the projection that described first fixture is extended in opposite directions for the inner surface from described two wall respect to one another portions of described diffusivity shell, described projection has the fixture that extends from the lower surface of described projection downwards, and described second fixture is hole that the upper surface of the two side portions of the described diffusivity shell of being mounted to of described phosphor structure has respectively, that can cooperate with described fixture.
Perhaps, the projection that described first fixture is extended in opposite directions for the inner surface from described two wall respect to one another portions of described diffusivity shell, the lower surface of described projection has the hole, and described second fixture is a upwardly extending fixture that the upper surface of the both sides of the described diffusivity shell of being mounted to of described phosphor structure has respectively, that can cooperate with the hole of described projection.
Perhaps, the projection that described first fixture is extended in opposite directions for the inner surface from described two wall respect to one another portions of described diffusivity shell, described convex upper surface has the hole, and described second fixture is a fixture that the lower surface of the both sides of the described diffusivity shell of being mounted to of described phosphor structure has respectively, the downward extension that can cooperate with the hole of described projection.
Further preferably, the Kong Jun of described projection, described fixture and described phosphor structure vertically forming continuously along described LED luminaire.Perhaps, the hole of described projection, described fixture and described phosphor structure is respectively a plurality of, and the Kong Jun of a plurality of described projection, described fixture and described phosphor structure longitudinally-spaced along described LED luminaire.
Further preferably, equal vertically the forming continuously of the fixture of the hole of described projection, described projection and described phosphor structure along described LED luminaire.Perhaps, the hole of described projection, described projection and the fixture of described phosphor structure are respectively a plurality of, and equal longitudinally-spaced along described LED luminaire of the fixture of the hole of a plurality of described projection, described projection and described phosphor structure.
Preferably, described first fixture has a projection for what the inner surface from described two wall respect to one another portions of described diffusivity shell extended in opposite directions, described projection has the hole, the both sides that are mounted to described diffusivity shell of described phosphor structure form porose respectively in the position corresponding to the hole of described projection, described phosphor structure and described diffusivity shell by described projection the hole and the hole of described phosphor structure and insert the hole of described projection and the hole of described phosphor structure in securing member be fixed together.
Preferably, when described LED luminaire is Down lamp, the inner surface of the described wall portion of described diffusivity shell is being provided with first fixture apart from described preset distance place, described upper end, described phosphor structure has second fixture that can fixedly connected with described first fixture, and described phosphor structure is fixed to described diffusivity shell by described first fixture and fixedlying connected of described second fixture.
More preferably, described first fixture is the attachment structure that along the circumferential direction forms at interval on the inner surface of the described wall portion of described diffusivity shell, forms the tooth portion that the attachment structure with described diffusivity shell fastens on the periphery of described phosphor structure.
Preferably, described phosphor structure is bonded to or is soldered to the inner surface of the described wall portion of described diffusivity shell by binding agent.
Preferably, described preset distance can be regulated according to described diffusivity design of shell.
Preferably, also be coated with reflecting material except that other zones the described zone between described printed circuit board (PCB) and the described phosphor structure on the inner surface of described wall portion.
Preferably, described LED is a blue-ray LED, and described phosphor structure is the phosphor structure that is coated with the fluorescent material that sends gold-tinted.
Preferably, described LED is a ultraviolet leds, and described phosphor structure is the phosphor structure that is coated with the fluorescent material that sends three primary colours light.
Preferably, described LED is the combination of blue-ray LED and red-light LED, and described phosphor structure is the phosphor structure that is coated with the fluorescent material that sends gold-tinted.
Preferably, described LED is a blue-ray LED, and described phosphor structure is the phosphor structure of composition that is coated with the fluorescent material that sends gold-tinted and sends the fluorescent material of ruddiness.
Preferably, described LED is a blue-ray LED, and described phosphor structure is the phosphor structure that is coated with the fluorescent material that sends ruddiness.
Preferably, described LED is a blue-ray LED, and described phosphor structure is the phosphor structure that is coated with the fluorescent material that sends green glow.
Preferably, described diffusivity shell is that transparent or even light is translucent.
Preferably, described diffusivity shell is made by Merlon or polymethyl methacrylate.
In addition, the present invention also provides a kind of assembling to have the method for the LED luminaire of remote fluorescence powder structure, may further comprise the steps: radiator is provided; Printed circuit board (PCB) is provided, and described printed circuit board (PCB) has upper surface and lower surface, and described lower surface is provided with LED; The described upper surface of described printed circuit board (PCB) is fixed to described radiator; The diffusivity shell is provided, described diffusivity shell have body and from described body towards the surface of described printed circuit board (PCB) to the wall portion that described printed circuit board (PCB) extends; Phosphor structure is fixed to described wall portion at the one preset distance place, upper end of the described wall of the distance portion of described wall portion, zone on the inner surface of described wall portion between described printed circuit board (PCB) and described phosphor structure is coated with reflecting material, and also is coated with reflecting material with zone that described phosphor structure is faced mutually on the described lower surface of described printed circuit board (PCB); And the diffusivity shell that will be fixed with described phosphor structure is mounted to the described radiator that is fixed with described printed circuit board (PCB), make and finish after the described installation, described wall portion described goes up the lower surface of the described printed circuit board (PCB) of end in contact and makes described LED be positioned at described upper end institute restricted portion, and described preset distance is arranged so that the basic full illumination of light that described LED sends is to the end face of described phosphor structure.
In LED luminaire according to embodiment of the present invention, owing to have the diffusivity shell of special construction design, in the space of phosphor structure between the body of LED and diffusivity shell, more specifically, the diffusivity shell have body and from body towards the surface of printed circuit board (PCB) to the wall portion that printed circuit board (PCB) extends, phosphor structure is fixed to described wall portion and spaced apart with body at the one preset distance place, upper end apart from described wall portion, thereby can utilize all advantages of remote fluorescence powder technology when avoiding when the LED luminaire cuts out appearance to be the color of applied fluorescent material.And than prior art, the use amount of fluorescent material reduces, thereby has saved cost.In addition, because can being limited to, the light that LED sends shines on the phosphor structure, so luminaire has high optical efficiency.In addition, the shape of phosphor structure and diffusivity shell and relatively simple for structure, thereby be easy to make and the assembling process of luminaire fairly simple.
Description of drawings
Describe illustrative embodiments of the present invention with reference to the accompanying drawings, identical Reference numeral is used to indicate identical parts in the accompanying drawing, in described accompanying drawing:
Fig. 1 is the stereogram that illustrates according to the LED luminaire of the tube lamp form of first embodiment of the invention;
Fig. 2 is the exploded perspective view that illustrates according to the LED luminaire of the tube lamp form of first embodiment of the invention;
Fig. 3 removes electrode end cap and the LED be positioned at according to an end of the LED luminaire of the tube lamp form of first embodiment of the invention to drive the viewed stereogram of Carrier box;
Fig. 4 removes electrode end cap and the LED be positioned at according to the two ends of the LED luminaire of the tube lamp form of first embodiment of the invention to drive the viewed end-view of Carrier box;
Fig. 5 is the sectional view according to the LED luminaire of the Down lamp form of second embodiment of the invention; And
Fig. 6 is the stereogram of the phosphor structure that uses in the LED luminaire that illustrates according to Down lamp form of the present invention.
The specific embodiment
Illustrative embodiments to LED luminaire according to the present invention is described in detail with reference to the accompanying drawings.
Need to prove, in the present invention, all and direction, word that the orientation is relevant, for example " make progress ", " downwards ", " on ", D score, " top ", " end ", " interior ", " outward " etc. all be to describe with reference to the LED luminaire under the user mode.In the LED luminaire under user mode, radiator is positioned at the top and the diffusivity shell is positioned at the below." vertically " of luminaire is meant the length direction of luminaire, and " laterally " of luminaire is meant the width vertical with " vertically "." vertically " of all parts of luminaire is consistent with " vertically " and " laterally " of luminaire respectively with " laterally ".
Term used herein " phosphor structure " for example is meant by doping such as Merlon (PC), polymethacrylates (PMMA), polypropylene (PP), silicones sends out the member that the fluorescent material of the light of particular color is made." diffusivity shell " is meant that the material of making this shell optically has certain diffusivity, thereby can not see the color of the employed fluorescent material of phosphor structure of luminaire from luminaire in appearance.
Fig. 1 is the stereogram that illustrates according to the LED luminaire of the tube lamp form of first embodiment of the invention; Fig. 2 is the exploded perspective view that illustrates according to the LED luminaire of the tube lamp form of first embodiment of the invention; Fig. 3 removes electrode end cap and the LED be positioned at according to an end of the LED luminaire of the tube lamp form of first embodiment of the invention to drive the viewed stereogram of Carrier box; Fig. 4 removes electrode end cap and the LED be positioned at according to the two ends of the LED luminaire of the tube lamp form of first embodiment of the invention to drive the viewed end-view of Carrier box.
With reference to figure 1-4, the LED luminaire of tube lamp form comprises: radiator 1; Heat-conducting glue 2; The PCB3 that has LED; Diffusivity shell 4; LED driving power 5; LED drives Carrier box 6; Electrode end cap 7; And phosphor structure 8.Radiator 1 for example is the part cylindrical structure.Printed circuit board (PCB) 3 is for the plate of rectangle and have upper surface 3a and lower surface 3b, and upper surface 3a is fixed to radiator 1 by means of the heat-conducting glue on the inner surface that is coated in radiator 12, and lower surface 3b is provided with LED.Printed circuit board (PCB) 3 can be common printed circuit board (PCB), also can be metal base printed circuit board (MCPCB).Diffusivity shell 4 has the columnar body 41 of part roughly and from extend to described printed circuit board (PCB) 3 towards the surface of described printed circuit board (PCB) 3 two of body 41 wall respect to one another portion 42, that is, have under the user mode of luminaire from upwardly extending two the wall respect to one another portions 42 of the inner surface of body 41.In this case, body 41 and wall portion are integrally formed.Certainly, body 41 and wall portion also can be independently parts of the difference that fits together.Two wall respect to one another portions 42 can extend in parallel to printed circuit board (PCB) 3 from the surface of body 41, perhaps can draw close to tilt to extend to printed circuit board (PCB) 3 from the surface of body 41.Two wall portions 42 have upper end 42a respectively.Each described wall portion 42 has the general planar shape.Diffusivity shell 4 can form by pressing method.Phosphor structure 8 is a rectangular plate shape, and the described upper end 42a of distance one preset distance H place is fixed to two wall portions 42 on two inner surfaces respect to one another of two wall portions 42.Diffusivity shell 4 can be mounted to radiator 1 with various known ways, for example as shown in Fig. 1-4, two circumferential end places of the columnar body of roughly part of diffusivity shell 4 are formed with the extension that extends in opposite directions, and two circumferential end places of the part cylindrical structure of radiator 1 are formed with the groove that inserts for described extension, with engaging of extension diffusivity shell 4 are mounted to radiator 1 by described groove.Two LED drive Carrier box 6 is coupled to radiator 1 and diffusivity shell 4 respectively in any known mode two ends.Two electrode end caps 7 are coupled to two LED in any known mode respectively and drive Carrier box 6.
The zone (i.e. surperficial E among the figure) that the lower surface 3b of printed circuit board (PCB) 3 goes up with described phosphor structure 8 is faced mutually has reflecting properties, and this can realize by the coating reflecting material, perhaps also can realize by the parts that attaching has a reflecting material.Zone on two inner surfaces respect to one another of described two wall respect to one another portions 42 between described printed circuit board (PCB) 3 and described phosphor structure 8 (that is, surface of the A among the figure and B surface) is coated with reflecting material.Preferably, on two inner surfaces respect to one another of described two wall respect to one another portions 42 except that other zones the zone between printed circuit board (PCB) 3 and the phosphor structure 8 (promptly, C surface and D surface among the figure) also can be coated with reflecting material, but this is not necessary.
Alternatively, the inner surface of two of diffusivity shell 4 wall respect to one another portion 42 is provided with first fixture at the described preset distance of 42a place, distance upper end, and phosphor structure 8 is fixed to diffusivity shell 4 by first fixture.For instance, in Fig. 4, described first fixture is the protruding 42b that the inner surface approximate horizontal ground of the wall respect to one another of two from diffusivity shell 4 portion extends in opposite directions, described protruding 42b has the groove 42c that also approximate horizontal ground extends in opposite directions, and the shape and size of described groove 42c form with the shape and size coupling at the two ends in the horizontal of phosphor structure 8 so that the two ends in the horizontal of phosphor structure 8 are snapped in respectively among the groove 42c.Described two protruding 42b are divided into aforesaid A surface and C surface and B surface and D surface respectively with the inner surface respect to one another of described two wall portions 42.Here, the protruding 42b that has groove 42c can be along vertically continuously the forming of LED luminaire, and also can form a plurality of and a plurality of described protruding 42b that have a groove 42c longitudinally-spaced along the LED luminaire.
Be understandable that this mode that phosphor structure 8 is fixed to the diffusivity shell only is exemplary, other all phosphor structure 8 can be fixed to the diffusivity shell equivalent way all be fine.For example, can on protruding 42b, not form groove 42c, but form the hole of extending from top to bottom from the upper surface of protruding 42b, described hole comprises through hole or blind hole, form the fixture that extends from the lower surface of phosphor structure, i.e. second fixture at the place, two ends in the horizontal of phosphor structure 8 accordingly downwards with described through hole or blind hole simultaneously.Here, the fixture that forms on the hole that go up to form of protruding 42b, protruding 42b and the phosphor structure all can vertically forming along the LED luminaire continuously.Particularly, in this case, can be bent downwardly in the transverse ends of phosphor structure 8 and form the bend extend longitudinally, that is, look in end longitudinally from luminaire, phosphor structure 8 forms
Shape is formed with elongate slots along the longitudinal simultaneously on protruding 42b.
The shape of the bend of the downward extension of the phosphor structure 8 of shape and the form fit of elongate slots can be inserted in the elongate slots by the bend with the downward extension of phosphor structure 8 like this phosphor structure 8 is fixed to diffusivity shell 4.
Certainly, also can on protruding 42b, form the hole of extending from top to bottom from the lower surface of protruding 42b, i.e. first fixture, described hole comprises through hole or blind hole, form accordingly from the upwardly extending fixture of the upper surface of phosphor structure, i.e. second fixture with described through hole or blind hole at the place, two ends in the horizontal of phosphor structure 8 simultaneously.In this case, can be bent upwards in the transverse ends of phosphor structure 8 and form the bend extend longitudinally, that is, look in end longitudinally from luminaire, phosphor structure 8 forms
Shape is formed with elongate slots along the longitudinal simultaneously on protruding 42b.
The shape of the upwardly extending bend of the phosphor structure 8 of shape and the form fit of elongate slots can be inserted in the elongate slots by the upwardly extending bend with phosphor structure 8 like this phosphor structure 8 is fixed to diffusivity shell 4.Need to prove that, phosphor structure 8 and diffusivity shell 4 can adopt interference fit here, or other similarly guarantee the fixing of phosphor structure 8 and diffusivity shell 4.
Alternatively, the fixture that forms on the hole that go up to form of protruding 42b, protruding 42b and the phosphor structure also can form a plurality of and a plurality of described protruding 42b, protruding 42b and go up longitudinally-spaced that the fixture that forms on the hole that forms and the phosphor structure can be along the LED luminaire.At this moment, the quantity of the quantity in hole and fixture is corresponding.
Preferably, also can on protruding 42b and phosphor structure 8, all be formed with screwed hole, and utilize bolt component to insert in the described screwed hole and phosphor structure 8 and diffusivity shell 4 are fixed together.
Alternatively, also can be with the displacement of the position of hole and fixture, that is, on protruding 42b, do not form the hole and form fixture as first fixture, on phosphor structure 8, form hole simultaneously as second fixture.At this moment, the hole that forms on the fixture that go up to form of protruding 42b, protruding 42b and the phosphor structure all can vertically forming along the LED luminaire continuously.Alternatively, the hole that forms on the fixture that go up to form of protruding 42b, protruding 42b and the phosphor structure also can form a plurality of and a plurality of described protruding 42b, protruding 42b and go up longitudinally-spaced that the hole that forms on the fixture that forms and the phosphor structure can be along the LED luminaire.Correspondingly, in this case, the quantity in hole is corresponding with the quantity of fixture.
As the example that phosphor structure 8 is fixed to diffusivity shell 4 in non-removable mode, can phosphor structure 8 be glued to two wall portions 42 of diffusivity shell 4 with adhesive, also phosphor structure 8 can be soldered to two wall portions 42 of diffusivity shell 4.
When the radiator 2 that will be provided with printed circuit board (PCB) 3 and the diffusivity shell 4 that is fixed with phosphor structure 8 were installed together, the upper end 42a contact print circuit board 3 of two wall respect to one another portions 42 also made LED between two upper end 42a.The basic full illumination of the light that preset distance H can make LED send is to the end face of phosphor structure 8.The size of this preset distance H is regulated according to the design of the shape of diffusivity shell.
Be understandable that though the phosphor structure 8 in first embodiment has tabular, phosphor structure 8 can have other shapes that can realize the object of the invention, for example can have curve form.
In above embodiment, LED is a blue-ray LED, phosphor structure 8 can be the phosphor structure of jaundice light, that is to say that phosphor structure 8 can be the member of being made by the fluorescent material of doping such as for example Merlon (PC), polymethacrylates (PMMA), polypropylene (PP), silicones jaundice light.
As seen from the above description, the present invention has following favourable technological merit:
1) owing to utilized remote fluorescence powder structure, so the present invention can utilize all advantages of remote phosphorescence jaundice light, for example light output evenly and stable, colour temperature (CCT) can change, install easily and cost low.
2) since phosphor structure 8 be fixed on the diffusivity shell of particular design and be hidden in luminaire inside, and shell is again the diffusivity shell, thus can avoid when luminaire cuts out exteriorly luminaire inside phosphor structure 8 employed jaundice light that fluorescent material had was faint yellow.
3) in prior art, fluorescent material is coated on the shell, has saved the use of phosphor material powder, thereby reduced cost.
4) light that sends owing to LED can be limited to and shine on the phosphor structure, so luminaire has high optical efficiency.
5) shape of phosphor structure and diffusivity shell and relatively simple for structure, thereby be easy to make.And the assembling process of luminaire is fairly simple.
Certainly, the present invention is not limited to the combination of the phosphor structure 8 of blue-ray LED and jaundice light.On the contrary, the present invention is equally applicable to the LED of other colors and other various combinations of sending out the phosphor structure of other color of light.For instance, the present invention goes for following combination: 1) LED is a ultraviolet leds, and phosphor structure is for being coated with the phosphor structure of the fluorescent material that sends three primary colours light (RGB), in this case, the LED luminaire can obtain white light, and can avoid that appearance is three primary colours when luminaire cuts out; 2) LED is the combination of blue-ray LED and red-light LED, and phosphor structure is the phosphor structure that is coated with the fluorescent material that sends gold-tinted, in this case, the LED luminaire can obtain high-color rendering white-light, and can avoid that appearance is faint yellow when luminaire cuts out; 3) LED is a blue-ray LED, and phosphor structure is the phosphor structure of composition that is coated with the fluorescent material that sends gold-tinted and sends the fluorescent material of ruddiness, in this case, the LED luminaire can obtain high-color rendering white-light, and can avoid that appearance is faint yellow and red when luminaire cuts out; 4) LED is a blue-ray LED, and phosphor structure is the phosphor structure that is coated with the fluorescent material that sends ruddiness, and in this case, the LED luminaire can obtain ruddiness, and can avoid that appearance takes on a red color when luminaire cuts out; 5) LED is a blue-ray LED, and phosphor structure is the phosphor structure that is coated with the fluorescent material that sends green glow, and in this case, the LED luminaire can obtain green glow, and can avoid that appearance is green when luminaire cuts out.
Be applied under the situation of these combinations, the present invention can obtain the advantage identical with the advantage described above of first embodiment.
In addition, in above embodiment, the LED luminaire is a tube lamp, and the body of diffusivity shell is that part is cylindrical.But the present invention can be applied to the fluorescent lamp of the other types except that tube lamp, the fluorescent lamp of Down lamp form for example, and correspondingly, when the present invention was applied to the fluorescent lamp of Down lamp form, the structure of some parts need be made corresponding change.
Fig. 5 is the sectional view according to the LED luminaire of the Down lamp form of second embodiment of the invention.Fig. 6 is the stereogram of the phosphor structure that uses in the LED luminaire that illustrates according to Down lamp form of the present invention.
Below with reference to Fig. 5 and the 6 LED luminaires of describing according to the Down lamp form of second embodiment of the invention, wherein identical parts use identical Reference numeral.For fear of repetition, the difference of second embodiment and first embodiment is only described hereinafter.
As shown in Figure 5, the radiator that the LED luminaire had 1 of Down lamp form no longer is the part cylindrical structure, but is whole cylindrical structure.In addition, because the structure of the LED luminaire of the LED luminaire of Down lamp form and tube lamp form is different, so in the LED of Down lamp form luminaire: printed circuit board (PCB) and phosphor structure no longer are rectangles, but circular; The body of diffusivity shell no longer is a part cylindrical shape roughly, but the general planar shape; Wall portion no longer is the wall respect to one another of extend to described printed circuit board (PCB) 3 towards the surface of described printed circuit board (PCB) 3 two from body 41 portion 42, but from the hollow of extending to printed circuit board (PCB) 3 of body 41 towards the surface of described printed circuit board (PCB) 3, diameter reduces gradually in the form of a truncated cone wall portion roughly, certainly, the wall portion of the general cylindrical shape of extending to printed circuit board (PCB) 3 from the described surface of described body 41 can be revised as in described wall portion; The body of diffusivity shell and wall portion no longer are integrally formed, but are respectively independently parts, so that can realize the assembling of phosphor structure; The inner surface of the wall portion 42 of diffusivity shell 4 along the circumferential direction is formed with attachment structure in the compartment of terrain, the tooth portion that the attachment structure of formation and described diffusivity shell fastens on the periphery of described phosphor structure 8 at the one preset distance place, upper end of the described wall of distance portion 42.Fixed form between other each parts and mounting means are all identical with embodiment described above or similar, no longer discuss at this.This embodiment also has the advantage identical with first embodiment.
Simply introduce above-mentioned assemble method below with LED luminaire of remote fluorescence powder structure.Be arranged on LED on the common printed circuit board (PCB) or on the metal base printed circuit board, can utilize for example all known feasible set-up modes such as welding manner here.Be coated with one deck heat-conducting glue 2 on the lower surface of radiator 1, for example heat dissipating silicone grease or thermal grease pad are fixed in radiator 1 by the upper surface that heat-conducting glue 2 will have the printed circuit board (PCB) 3 of LED then.Certainly, it is exemplary utilizing the mode of heat-conducting glue 2 fixed heat sink 1 and printed circuit board (PCB) 3, is not unique mode.Phosphor structure is fixed to described wall portion at the one preset distance place, upper end of the described wall of the distance portion of the wall portion of diffusivity shell.Next, the diffusivity shell that is fixed with described phosphor structure is mounted to the described radiator that is fixed with described printed circuit board (PCB), make and finish after the described installation, described wall portion described goes up the lower surface of the described printed circuit board (PCB) of end in contact and makes described LED be positioned at described upper end institute restricted portion, and described preset distance is arranged so that the basic full illumination of light that described LED sends is to the end face of described phosphor structure.When the LED luminaire is the tube lamp form, the mode concrete example that phosphor structure 8 is fixed to described wall portion is as being: phosphor structure 8 is inserted in the groove 42c that protruding 42b forms from an end vertically, thereby phosphor structure 8 is fastened to diffusivity shell 4.When the LED luminaire is the Down lamp form, the mode concrete example that phosphor structure 8 is fixed to described wall portion is as being: phosphor structure 8 is put into from the end of cylindrical body portion or a bigger end of diameter of conical frusta shaped wall portion, utilized tooth portion that forms on the periphery of phosphor structure 8 and the attachment means that forms on the inner surface of wall portion that phosphor structure 8 is fastened to diffusivity shell 4.Next utilize known way to be mounted to radiator 1 on diffusivity shell 4.LED driving power 5 can be inserted LED subsequently and drive in the Carrier box 6 and and fix, for example the two be fixed with screw with the two.Next for example utilize screw that two LED that have LED driving power 5 are driven the two ends that Carrier box 6 is individually fixed in radiator 1.At last, again two electrode end caps 7 are installed on the two ends that LED drives Carrier box 6 respectively.
Though invention has been described in conjunction with illustrative embodiments, should be appreciated that under the situation that does not depart from claims institute restricted portion, those skilled in the art can make various variations to described illustrative embodiments.
Claims (36)
1. LED luminaire with remote fluorescence powder structure comprises:
Radiator;
Printed circuit board (PCB), described printed circuit board (PCB) has upper surface and lower surface, and described upper surface is fixed to described radiator, and described lower surface is provided with LED;
Diffusivity shell, described diffusivity shell be mounted to described radiator and have body and from described body towards the surface of described printed circuit board (PCB) to the wall portion that described printed circuit board (PCB) extends; And
Phosphor structure, described phosphor structure is fixed to described wall portion at the one preset distance place, upper end of the described wall of the distance portion of described wall portion, zone on the inner surface of described wall portion between described printed circuit board (PCB) and described phosphor structure is coated with reflecting material, and also be coated with reflecting material with zone that described phosphor structure is faced mutually on the described lower surface of described printed circuit board (PCB)
Wherein, described wall portion described goes up the lower surface of the described printed circuit board (PCB) of end in contact and makes described LED be positioned at described upper end institute restricted portion, and described preset distance is arranged so that the basic full illumination of light that described LED sends is to the end face of described phosphor structure.
2. the LED luminaire with remote fluorescence powder structure as claimed in claim 1, wherein, described LED luminaire is a tube lamp, described body is part cylindrical shape roughly, and described wall portion is for from extend in parallel to described printed circuit board (PCB) towards the described surface of described printed circuit board (PCB) two of described body wall respect to one another portion.
3. the LED luminaire with remote fluorescence powder structure as claimed in claim 1, wherein, described LED luminaire is a tube lamp, described body is part cylindrical shape roughly, and described wall portion is for drawing close two of tilting extend respect to one another wall portion towards the described surface of described printed circuit board (PCB) to described printed circuit board (PCB) from described body.
4. the LED luminaire with remote fluorescence powder structure as claimed in claim 1, wherein, described LED luminaire is a Down lamp, described body is the general planar shape and is not parts independently with described wall part, and described wall portion is the wall portion from the general cylindrical shape of extending to described printed circuit board (PCB) towards the described surface of described printed circuit board (PCB) of described body.
5. the LED luminaire with remote fluorescence powder structure as claimed in claim 1, wherein, described LED luminaire is a Down lamp, described body is the general planar shape and is not parts independently with described wall part, described wall portion for from the hollow of extending to described printed circuit board (PCB) of described body towards the described surface of described printed circuit board (PCB), diameter reduces gradually in the form of a truncated cone wall portion roughly.
6. the LED luminaire with remote fluorescence powder structure as claimed in claim 1, wherein, described phosphor structure is a tabular.
7. the LED luminaire with remote fluorescence powder structure as claimed in claim 1, wherein, described phosphor structure is the curved surface shape.
8. as each described LED luminaire with remote fluorescence powder structure in the claim 1 to 7, wherein, described phosphor structure is mounted to the described wall portion of described diffusivity shell by removably.
9. as each described LED luminaire in the claim 2 to 3 with remote fluorescence powder structure, wherein, the inner surface of described two wall respect to one another portions of described diffusivity shell is being provided with first fixture respectively apart from described preset distance place, described upper end, and described phosphor structure is fixed to described diffusivity shell by described first fixture.
10. the LED luminaire with remote fluorescence powder structure as claimed in claim 9, wherein, the projection that has groove that described first fixture is extended in opposite directions for the inner surface approximate horizontal ground from described two wall respect to one another portions of described diffusivity shell, described phosphor structure snaps in the described groove.
11. the LED luminaire with remote fluorescence powder structure as claimed in claim 10, wherein, described projection vertically the forming continuously that has groove along described LED luminaire.
12. the LED luminaire with remote fluorescence powder structure as claimed in claim 10, wherein, the described projection that has groove is a plurality of, and a plurality of described projection that has a groove longitudinally-spaced along described LED luminaire.
13. as each described LED luminaire in the claim 2 to 3 with remote fluorescence powder structure, wherein, the inner surface of described two wall respect to one another portions of described diffusivity shell is being provided with first fixture apart from described preset distance place, described upper end, described phosphor structure has second fixture that can fixedly connected with described first fixture, and described phosphor structure is fixed to described diffusivity shell by described first fixture and fixedlying connected of described second fixture.
14. the LED luminaire with remote fluorescence powder structure as claimed in claim 13, wherein, the projection that described first fixture is extended in opposite directions for the inner surface from described two wall respect to one another portions of described diffusivity shell, described projection has from the upwardly extending fixture of described convex upper surface, and described second fixture is hole that the lower surface of the both sides of the described diffusivity shell of being mounted to of described phosphor structure has respectively, that can cooperate with described fixture.
15. the LED luminaire with remote fluorescence powder structure as claimed in claim 13, wherein, the projection that described first fixture is extended in opposite directions for the inner surface from described two wall respect to one another portions of described diffusivity shell, described projection has the fixture that extends from the lower surface of described projection downwards, and described second fixture is hole that the upper surface of the two side portions of the described diffusivity shell of being mounted to of described phosphor structure has respectively, that can cooperate with described fixture.
16. the LED luminaire with remote fluorescence powder structure as claimed in claim 13, wherein, the projection that described first fixture is extended in opposite directions for the inner surface from described two wall respect to one another portions of described diffusivity shell, the lower surface of described projection has the hole, and described second fixture is a upwardly extending fixture that the upper surface of the both sides of the described diffusivity shell of being mounted to of described phosphor structure has respectively, that can cooperate with the hole of described projection.
17. the LED luminaire with remote fluorescence powder structure as claimed in claim 13, wherein, the projection that described first fixture is extended in opposite directions for the inner surface from described two wall respect to one another portions of described diffusivity shell, described convex upper surface has the hole, and described second fixture is a fixture that the lower surface of the both sides of the described diffusivity shell of being mounted to of described phosphor structure has respectively, the downward extension that can cooperate with the hole of described projection.
18. as each described LED luminaire with remote fluorescence powder structure in the claim 14 to 15, wherein, the Kong Jun of described projection, described fixture and described phosphor structure vertically forms continuously along described LED luminaire.
19. as each described LED luminaire in the claim 14 to 15 with remote fluorescence powder structure, wherein, the hole of described projection, described fixture and described phosphor structure is respectively a plurality of, and the Kong Jun of a plurality of described projection, described fixture and described phosphor structure longitudinally-spaced along described LED luminaire.
20. as each described LED luminaire with remote fluorescence powder structure in the claim 16 to 17, wherein, the hole of described projection, described projection and the fixture of described phosphor structure be vertically forming along described LED luminaire continuously all.
21. as each described LED luminaire in the claim 16 to 17 with remote fluorescence powder structure, wherein, the hole of described projection, described projection and the fixture of described phosphor structure are respectively a plurality of, and equal longitudinally-spaced along described LED luminaire of the fixture of the hole of a plurality of described projection, described projection and described phosphor structure.
22. the LED luminaire with remote fluorescence powder structure as claimed in claim 13, wherein, the projection that described first fixture is extended in opposite directions for the inner surface from described two wall respect to one another portions of described diffusivity shell, described projection has the hole, the both sides that are mounted to described diffusivity shell of described phosphor structure form porose respectively in the position corresponding to the hole of described projection, described phosphor structure and described diffusivity shell by described projection the hole and the hole of described phosphor structure and insert the hole of described projection and the hole of described phosphor structure in securing member be fixed together.
23. as each described LED luminaire in the claim 4 to 5 with remote fluorescence powder structure, wherein, the inner surface of the described wall portion of described diffusivity shell is being provided with first fixture apart from described preset distance place, described upper end, described phosphor structure has second fixture that can fixedly connected with described first fixture, and described phosphor structure is fixed to described diffusivity shell by described first fixture and fixedlying connected of described second fixture.
24. the LED luminaire with remote fluorescence powder structure as claimed in claim 23, wherein, described first fixture is the attachment structure that along the circumferential direction forms at interval on the inner surface of the described wall portion of described diffusivity shell, the tooth portion that forms on the periphery that described second fixture is described phosphor structure, fasten with the attachment structure of described diffusivity shell.
25. as each described LED luminaire with remote fluorescence powder structure in the claim 1 to 7, wherein, described phosphor structure is bonded to or is soldered to the inner surface of the described wall portion of described diffusivity shell by binding agent.
26. as each described LED luminaire with remote fluorescence powder structure in the claim 1 to 25, wherein, described preset distance can be regulated according to described diffusivity design of shell.
27. as each described LED luminaire in the claim 1 to 26 with remote fluorescence powder structure, wherein, also be coated with reflecting material except that other zones the described zone between described printed circuit board (PCB) and the described phosphor structure on the inner surface of described wall portion.
28. as each described LED luminaire with remote fluorescence powder structure in the claim 1 to 27, wherein, described LED is a blue-ray LED, and described phosphor structure is the phosphor structure that is coated with the fluorescent material that sends gold-tinted.
29. as each described LED luminaire with remote fluorescence powder structure in the claim 1 to 27, wherein, described LED is a ultraviolet leds, and described phosphor structure is the phosphor structure that is coated with the fluorescent material that sends three primary colours light.
30. as each described LED luminaire with remote fluorescence powder structure in the claim 1 to 27, wherein, described LED is the combination of blue-ray LED and red-light LED, and described phosphor structure is the phosphor structure that is coated with the fluorescent material that sends gold-tinted.
31. as each described LED luminaire in the claim 1 to 27 with remote fluorescence powder structure, wherein, described LED is a blue-ray LED, and described phosphor structure is the phosphor structure of composition that is coated with the fluorescent material that sends gold-tinted and sends the fluorescent material of ruddiness.
32. as each described LED luminaire with remote fluorescence powder structure in the claim 1 to 27, wherein, described LED is a blue-ray LED, and described phosphor structure is the phosphor structure that is coated with the fluorescent material that sends ruddiness.
33. as each described LED luminaire with remote fluorescence powder structure in the claim 1 to 27, wherein, described LED is a blue-ray LED, and described phosphor structure is the phosphor structure that is coated with the fluorescent material that sends green glow.
34. as each described LED luminaire with remote fluorescence powder structure in the claim 1 to 33, wherein, described diffusivity shell is that transparent or even light is translucent.
35. as each described LED luminaire with remote fluorescence powder structure in the claim 1 to 34, wherein, described diffusivity shell is made by Merlon or polymethyl methacrylate.
36. an assembling has the method for the LED luminaire of remote fluorescence powder structure, may further comprise the steps:
Radiator is provided;
Printed circuit board (PCB) is provided, and described printed circuit board (PCB) has upper surface and lower surface, and described lower surface is provided with LED;
The described upper surface of described printed circuit board (PCB) is fixed to described radiator;
The diffusivity shell is provided, described diffusivity shell have body and from described body towards the surface of described printed circuit board (PCB) to the wall portion that described printed circuit board (PCB) extends;
Phosphor structure is fixed to described wall portion at the one preset distance place, upper end of the described wall of the distance portion of described wall portion, zone on the inner surface of described wall portion between described printed circuit board (PCB) and described phosphor structure is coated with reflecting material, and also is coated with reflecting material with zone that described phosphor structure is faced mutually on the described lower surface of described printed circuit board (PCB); And
The diffusivity shell that is fixed with described phosphor structure is mounted to the described radiator that is fixed with described printed circuit board (PCB), make and finish after the described installation, described wall portion described goes up the lower surface of the described printed circuit board (PCB) of end in contact and makes described LED be positioned at described upper end institute restricted portion, and described preset distance is arranged so that the basic full illumination of light that described LED sends is to the end face of described phosphor structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100220375A CN103225751A (en) | 2012-01-31 | 2012-01-31 | LED illuminator with long-distance fluorescent powder structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100220375A CN103225751A (en) | 2012-01-31 | 2012-01-31 | LED illuminator with long-distance fluorescent powder structure |
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Application publication date: 20130731 |