CN104251391A - LED (light-emitting diode) bulb lamp - Google Patents
LED (light-emitting diode) bulb lamp Download PDFInfo
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- CN104251391A CN104251391A CN201310261131.0A CN201310261131A CN104251391A CN 104251391 A CN104251391 A CN 104251391A CN 201310261131 A CN201310261131 A CN 201310261131A CN 104251391 A CN104251391 A CN 104251391A
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- light source
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Abstract
The invention relates to an LED (light-emitting diode) bulb lamp, which comprises a lamp holder, a lamp base, a light source part and a lampshade, wherein the light source part consists of a plurality of LED light sources. The LED bulb lamp is characterized in that the light source part is divided into a first light source part and a second light source part; the first light source part and the second light source part are respectively equipped with a first light distribution assembly and a second light distribution assembly; light emitted from the first light source part is emitted out from the top part of the LED bulb lamp by the first light distribution assembly; light emitted from the second light source part is emitted from the side face of the LED bulb lamp by the second light distribution assembly. As different optical modules are respectively arranged on two sets of LEDs, by giving consideration to light emission amount of the top part and the side face of the bulb lamp, the wide-angle illumination effect is achieved; meanwhile, through the separated arrangement of the optical modules, the heat radiating area is increased, and the heat radiating efficiency is increased.
Description
Technical field
the present invention relates to a kind of LEDbulb lamp, the LEDbulb lamp of particularly a kind of wide-angle luminescence.
Background technology
due to LED have that volume is little, the life-span is long, light efficiency is high, it is low, radiationless to generate heat, low energy consumption and environmental protection be without advantages such as mercury, so belong to energy-saving and environment friendly illuminating product, national governments all pollute with economize energy, reduction in positive encourage growth LED illumination technology.Along with the develop rapidly of LED illumination, existing conventional light source product just progressively substitute by LED light source product, LEDbulb lamp traditional at present adopts patent application " spherical LED lamp and the method for the production of spherical LED lamp " (the application number CN200980136216.8 as PHILIPS Co. usually, September 11 2009 applying date) and patent application " comprising the light source of the optical transmitting set be arranged in translucent outer envelope " (application number CN201080019874.1, April 23 2010 applying date) and patent application " bulb-shaped lamp and lighting device " (the application number 201110453449.X of PANASONIC, April 21 2010 applying date) etc. described in Patents, its structure adopts radiator is set on lamp body, LED particle is set at lamp body top simultaneously, and on lamp body main header casing optics cell-shell, by this while meeting cooling requirements, by the light of its inner LED injection of optics cell-shell scattering, to form traditional LEDbulb lamp.
but above-mentioned this traditional LEDbulb lamp is because its general irradiating angle is lower than traditional incandescent lamp, therefore concerning alternative conventional light source, there is certain limitation, therefore according to the definition of star (Energy Star) standard of american energy, in order to large illuminating angle degree can be reached, the illumination angle of bulb lamp at least will reach 270 degree, so truly could substitute effect of conventional incandescent completely.
for solving the problem, reach large angle illumination effect, current design is all the various optics added in traditional LEDbulb lamp, as patent application " bulb-shaped LED " (the application number CN201220114363.4 of Toshiba's illumination, March 23 2012 applying date), its structure realizes large angle illumination for arranging light conductor in cell-shell inside, but such design still remains the Design Mode that traditional ball bubble closes cell-shell, all devices all concentrates on cell-shell inside, is unfavorable for heat radiation.
Summary of the invention
the object of the invention is the deficiency in order to solve existing LEDbulb lamp, providing one both can realize wide-angle luminescence, there is again the LEDbulb lamp of great heat radiation effect simultaneously.
technical scheme of the present invention is, a kind of LEDbulb lamp is provided, comprise: lamp holder, lamp socket, the Lights section be made up of multiple LED light source, lampshade, it is characterized in that, described the Lights section is divided into first the Lights section, secondary light source part, described first the Lights section, secondary light source part is furnished with the first luminous intensity distribution assembly respectively, second luminous intensity distribution assembly, the light that described first luminous intensity distribution assembly makes described first the Lights section send penetrates from the top of described LEDbulb lamp, the light that described second luminous intensity distribution assembly makes described secondary light source part send penetrates from the side of described LEDbulb lamp.
optionally, described first the Lights section comprises a LED installing plate and at least one LED light source is arranged at a described LED installing plate, described secondary light source part comprises the 2nd LED installing plate and multiple LED light source, and multiple LED light sources of described secondary light source part are arranged around the central shaft of described LEDbulb lamp.
optionally, a described LED installing plate and the 2nd LED installing plate are in same plane.
optionally, described LEDbulb lamp also comprises light source erection column, a described LED installing plate, the 2nd LED installing plate are located at described light source erection column, and not in same plane, the more described LED installing plate position of described 2nd LED installing plate is closer to described lamp socket.
optionally, described second luminous intensity distribution assembly is the light guide structure of a hollow, and described light guide structure comprises the inner surface with reflection function, the outer surface as light-emitting face and the end face as light entrance face.Relatively and be close in described end face and arrange, light sends from described secondary light source part described secondary light source part, injects described light guide structure through described end face, by the guiding of described light guide structure and the reflection of described inner surface, penetrates from described outer surface.
optionally, the outer surface of described light guide structure is as the shell of described LEDbulb lamp.
optionally, the inner surface of described light guide structure is provided with an opaque reflecting layer in addition.
optionally, described reflecting layer is reflecting plate or reflectance coating, and described reflecting plate is reflecting paper or PC reflecting plate, and described reflectance coating is for spraying reflection paint or spray reflective metal film or vacuum deposited metal coating.
optionally, described light guide structure is the cylinder of hollow, prism, cydariform, Rotary-table or terrace with edge.
optionally, described light guide structure is made up of one or more light conductor.
optionally, the inner surface side of described light guide structure is mixed with scattering particles, and described scattering particles is-silica, zinc oxide particles alternatively or mixing, and the distribution density of described scattering particles is increased to described light conductor top gradually by described end face.
optionally, the inner surface of described light guide structure has micro-structural, the distribution density of described micro-structural is increased to described light conductor top gradually by described end face, described micro-structural is formed by etching, described micro-structural is annular ditch groove or micro structure array, and the structure in described micro structure array is centrum, frustum, hemisphere or round platform.
optionally, described second luminous intensity distribution assembly is a reflection shield.
optionally, described first luminous intensity distribution assembly, the setting separated from one another of the second luminous intensity distribution assembly, form one section of groove led to outside described LEDbulb lamp between described first luminous intensity distribution assembly, the second luminous intensity distribution assembly.
optionally, described first luminous intensity distribution assembly is connected with described first the Lights section, and described second luminous intensity distribution assembly is connected with described secondary light source part, and described first the Lights section, secondary light source part connect a radiator.
the present invention, owing to have employed technique scheme, makes it compared with prior art, and the present invention is equipped with by two groups of LED the light shot that different optical modules takes into account ball bubble top and side respectively, achieves large angle illumination effect.By light conductor directly as the shell of bulb lamp, decrease assembly, simplify design, be conducive to manufacturing simultaneously.And the separation of two parts luminous intensity distribution assembly is arranged, add using luminous intensity distribution assembly directly as shell, make the shell of bulb lamp of the present invention be no longer the entirety sealed, between two assembly optical assemblies, define a groove, add area of dissipation, improve radiating efficiency.
Accompanying drawing explanation
fig. 1 is the structural representation profile of first embodiment of the invention;
fig. 2 is the surface structure schematic diagram of first embodiment of the invention;
fig. 3 is the structural representation explosive view of first embodiment of the invention;
fig. 4 is the emergent ray distribution map of first embodiment of the invention;
fig. 5 is the emergent ray distribution map of second embodiment of the invention;
fig. 6 is the structural representation of first embodiment of the invention light conductor surface micro-structure;
fig. 7 is the structural representation of second embodiment of the invention light conductor surface micro-structure.
Detailed description of the invention
below in conjunction with the drawings and specific embodiments, the LEDbulb lamp that the present invention proposes is described in further detail.
embodiment one, please refer to Fig. 1, Fig. 2, Fig. 3, the present embodiment is a LEDbulb lamp, as shown in Figure 2, its critical piece comprises lamp holder 8, lamp socket 7, peripheral light source installing plate 6, light source board supporting pillar 5, central light source installing plate 4, light conductor 3, reflection shield 2, top lamp housing 1 to concrete outward appearance as shown in Figure 3.
in the present embodiment, lamp holder 8 is standard lamp head, and lamp holder 8 is connected with lamp socket 7, lamp socket 7 for holding the circuit unit of driving LED, lamp socket 7 and circuit unit thermally coupled, circuit unit produce heat outwards can be discharged by lamp socket 7.Lamp socket 7 is also connected with light source board supporting pillar 5, light source board supporting pillar 5 is the column structure of a hollow, its top is provided with central light source installing plate 4, and the other end is connected with lamp socket 7, and the middle part of light source board supporting pillar 5 is provided with peripheral light source installing plate 6 around light source board supporting pillar 5.Light source board supporting pillar 5 is also connected with a radiator simultaneously, and central light source installing plate 4 is connected heat transfer by supporting pillar 5 with radiator with peripheral light source installing plate 6.
the present embodiment adopts LED as light source, LED, the LED do not encapsulated, surface mount LED, chip on board LED that LED of the present invention can refer to encapsulate, comprises the LED of a certain type optical element.Peripheral light source installing plate 6 and central light source installing plate 4 are separately installed with two groups of LED, and peripheral light source installing plate 6 is also connected with light conductor 3, and the light that light conductor 3 guides LED to penetrate penetrates to the side direction of bulb.The LED that central light source installing plate 4 is installed is responsible for bulb top injection light, and for controlling the direction of light, central light source installing plate 4 is also connected with tubaeform reflector 2, and reflector 2 openend is connected with top lamp housing 1.Top lamp housing 1 and light conductor 3 together form the shell of the present embodiment bulb lamp.Simultaneously light conductor 3 and peripheral light source installing plate 6 thermally coupled, reflector 2 and central light source installing plate 4 thermally coupled, light conductor 3 is not but directly connected with reflector 2, top lamp housing 1, can see from the outward appearance of bulb lamp, groove is together had between light conductor 3 and reflector 2, top lamp housing 1, do not contact each other, such design adds the area of dissipation of bulb lamp, improves radiating efficiency.
as mentioned above, for realizing large angle illumination, the present embodiment is by being divided into two groups by LED light source, and first group of light source coordinates reflector to realize the luminescence of bulb top-direction, and second group of light source coordinates light conductor to realize lateral direction light emission, thus takes into account the luminescence on side direction and top.First group of light source is set in the grouping of light source and is located at central light source installing plate, and be uniformly distributed on it, the quantity of LED is not limit and can be single or many, the words LED of single is arranged on the center of central light source installing plate, first group of light source has 10 LEDs in the present embodiment, and central light source installing plate is that a circular flat board is evenly distributed on central light source installing plate in garden annular.In other embodiments, central light source installing plate also can be round platform or frustum, and light source is arranged on top and the side of platform, and is uniformly distributed.Second group of light source is located at peripheral light source installing plate, and peripheral light source installing plate is positioned at the below of central light source installing plate in the present embodiment, the middle part of light source board supporting pillar, and peripheral light source installing plate is annular, and light source board supporting pillar is that garden post passes wherein.Because second group of light source is responsible for lateral direction light emission, therefore at least need 2 LEDs, preferably more than 3, have employed the peripheral light source installing plate that 10 LEDs are equidistantly evenly distributed on garden annular in the present embodiment.In some other preferred embodiments, light source board supporting pillar is prism, and peripheral light source installing plate is polygonal ring shape, and the LED quantity of second group of light source is the integral multiple of polygon number of sides, is evenly distributed on each side simultaneously.Quovis modo, the LED of second group of light source is uniformly distributed all the time centered by the central shaft of LEDbulb lamp.In the present embodiment, peripheral light source installing plate is horizontally disposed with, and for reaching better side illumination effect, the central shaft that peripheral light source installing plate can be not orthogonal to LEDbulb lamp is downward-sloping.
the LED particle quantity of two groups of light sources is identical in the present embodiment, the quantity of two groups of light sources can be adjusted in practice as required, if need front end illumination higher, the LED quantity of first group of light source can be increased, if require that whole ball steeps each angle illumination with being even, the LED quantity of second group of light source can be made to be greater than first group of light source.
as shown in Figure 4, the light of first group of LED light source 91 injection, by the reflection of reflector 2, penetrates from lamp housing 1 the emergent ray schematic diagram of embodiment one, and the reflection by light conductor 3 and the refraction of second group of LED light source 92 injection are penetrated from side direction.Can penetrate from the side to make the light of the LED injection be mounted on peripheral light source installing plate, the cross section of light conductor 3 is a similar triangle in the present embodiment, base is as the plane of incidence of light and LED light source and the laminating of peripheral light source installing plate, hypotenuse near light source board supporting pillar is reflecting surface, light sends from LED, inject through the plane of incidence, by the reflection of reflecting surface, from leg-of-mutton another hypotenuse injection.In the present embodiment, peripheral light source installing plate be annular around light source board supporting pillar, therefore light conductor 3 be a hollow round table structure also around light source board supporting pillar, in the middle part of round platform, cut-out is inverted truncated cone-shaped.Light conductor can be the cylinder of hollow, prism, cydariform or terrace with edge in other embodiments, can be even the polymorphic structures such as the diamond of hollow.The bottom surface of light conductor is the plane of incidence in these structures, and inner surface is reflecting surface, and outer surface is light-emitting face.
at reflecting surface for realizing reflecting effect, the inner surface of light conductor 3 has a lighttight reflector layer, and reflector layer can be an independent reflecting plate, as white reflective paper, and PC reflecting plate etc.; Reflector layer also can be formed by the mode of coating, and as spraying white reflective paint, spraying reflective metal film (as reflecting metal coatings such as Al, Ag), or vacuum deposited metal coating, as splash-proofing sputtering metal Al or Ag film etc.
simultaneously in order to make lateral direction light emission more even, the inner surface of light conductor 3 is also provided with micro-structural, as shown in Figure 6, the distribution density of micro-structural is increased to light conductor top gradually by lower, both as figure a to b direction, micro-structural is etching formation annular ditch groove in the present embodiment, and the cross section of groove is triangular form.In other preferred embodiments, micro-structural is array format, is arranged in array format according to certain rules by the micro-structure such as centrum, frustum, hemisphere, round platform on light conductor surface.In the present embodiment, light conductor is formed in one, and in other embodiments, light conductor also can be spliced by two pieces or three pieces of parts that even more polylith is independent.
in another one preferred embodiment; by being mixed with to light conductor 3 effect that scattering particles realizes side direction uniformly light-emitting; as shown in Figure 7; the part of mixing scattering particles is the inner surface of light conductor; the distribution density of scattering particles is increased to light conductor top gradually by lower; both as figure a to b direction, scattering particles can select silica, zinc oxide fine particles or silica-zinc oxide stuff and other stuff.
embodiment two, the LEDbulb lamp critical piece that the present embodiment provides comprises lamp holder, lamp socket, light source installing plate, LED light source and optical module.In the present embodiment, lamp holder is standard lamp head, and lamp holder is connected with lamp socket, lamp socket for holding the circuit unit of driving LED, lamp socket and circuit unit thermally coupled, circuit unit produce heat outwards can be discharged by lamp socket.Lamp socket is also connected with light source installing plate 100, and as shown in Figure 5 light source installing plate 100 is provided with LED light source, LED light source is divided into two groups, and first group of light source 91 realizes to bulb top-direction luminous, and second group of light source 92 realizes lateral direction light emission.In the distribution of light source, first group of light source 91 concentrates in the middle part of light source installing plate 100, and second group of light source is around first group of light source, and the LED quantity number of two groups of light sources all must be uniformly distributed centered by the axis of LEDbulb lamp described in the present embodiment.The quantity of LED and grouping arrange and embodiment one similar, just repeat no more here.
as shown in Figure 5, in order to realize the illumination of different directions, first group of light source 91 and second group of light source 92 are furnished with reflector 2 and reflector 31 respectively, and upwards, the reflecting surface of reflector 31 is towards second group of light source 92 to offside reflection light for the reflecting surface of reflector 2.Reflector 2 and reflector 31 are all arranged on light source installing plate 100, and thermally coupled with light source installing plate 100, but both do not contact each other.Reflector 2 also connects a top cell-shell 1, and reflector 31 connection side papula shell 32, top cell-shell 1 does not also contact with side cell-shell 32.The passage being led to bulb lamp outside with one by light source installing plate 100 is just formed like this between reflector 2 and reflector 31.In order to further heat radiation performance, on light source installing plate 100, between corresponding reflector 2 and reflector 31, gap place is also provided with passage, lamp socket is also provided with passage, such air can go out flow into from lamp socket, passage on light source installing plate 100, flow out LED bulb by gap between reflector 2 and reflector 31 and take away heat, thus playing thermolysis.Also be connected with a radiator at light source installing plate 100 simultaneously.
top cell-shell 1 and side cell-shell 32 are manufactured from the same material, and can be formed by the transparent resins such as glass, such as Merlon and crystalline ceramics.As required, can by diffusant or the phosphor-coating inner surface to top cell-shell 1 and side cell-shell 32, or diffusant or phosphor can be included in top cell-shell 1 and side cell-shell 32.
description of the preferred embodiment of the present invention is to illustrate and describing above, and undesired is limit of the present invention or be confined to disclosed concrete form, obviously, many modifications and variations may be made, these modifications and variations may be obvious to those skilled in the art, should be included within the scope of the present invention that defined by appended claims.
Claims (15)
1. a LEDbulb lamp, comprise: lamp holder, lamp socket, the Lights section be made up of multiple LED light source, lampshade, it is characterized in that, described the Lights section is divided into first the Lights section, secondary light source part, described first the Lights section, secondary light source part are furnished with the first luminous intensity distribution assembly, the second luminous intensity distribution assembly respectively, the light that described first luminous intensity distribution assembly makes described first the Lights section send penetrates from the top of described LEDbulb lamp, and the light that described second luminous intensity distribution assembly makes described secondary light source part send penetrates from the side of described LEDbulb lamp.
2. a kind of LEDbulb lamp according to claim 1, it is characterized in that described first the Lights section comprises a LED installing plate and at least one LED light source is arranged at a described LED installing plate, described secondary light source part comprises the 2nd LED installing plate and multiple LED light source, and multiple LED light sources of described secondary light source part are arranged around the central shaft of described LEDbulb lamp.
3. a kind of LEDbulb lamp according to claim 2, is characterized in that a described LED installing plate and the 2nd LED installing plate are in same plane.
4. a kind of LEDbulb lamp according to claim 2, it is characterized in that described LEDbulb lamp also comprises light source erection column, a described LED installing plate, the 2nd LED installing plate are located at described light source erection column, and not in same plane, the more described LED installing plate position of described 2nd LED installing plate is closer to described lamp socket.
5. a kind of LEDbulb lamp according to claim 1, it is characterized in that described second luminous intensity distribution assembly is the light guide structure of a hollow, described light guide structure comprises the inner surface with reflection function, outer surface as light-emitting face and the end face as light entrance face, described secondary light source part relatively and be close in described end face and arrange, light sends from described secondary light source part, described light guide structure is injected through described end face, by the guiding of described light guide structure and the reflection of described inner surface, penetrate from described outer surface.
6. a kind of LEDbulb lamp according to claim 5, is characterized in that the shell of the outer surface of described light guide structure as described LEDbulb lamp.
7. a kind of LEDbulb lamp according to claim 6, is characterized in that the inner surface of described light guide structure is provided with an opaque reflecting layer in addition.
8. a kind of LEDbulb lamp according to claim 7, it is characterized in that described reflecting layer is reflecting plate or reflectance coating, described reflecting plate is reflecting paper or PC reflecting plate, and described reflectance coating is for spraying reflection paint or spray reflective metal film or vacuum deposited metal coating.
9. a kind of LEDbulb lamp according to claim 8, is characterized in that described light guide structure is the cylinder of hollow, prism, cydariform, Rotary-table or terrace with edge.
10. a kind of LEDbulb lamp according to claim 9, is characterized in that described light guide structure is made up of one or more light conductor.
11. a kind of LEDbulb lamp according to claim 10, it is characterized in that the inner surface side of described light guide structure is mixed with scattering particles, described scattering particles is-silica, zinc oxide particles alternatively or mixing, and the distribution density of described scattering particles is increased to described light conductor top gradually by described end face.
12. a kind of LEDbulb lamp according to claim 10, it is characterized in that the inner surface of described light guide structure has micro-structural, the distribution density of described micro-structural is increased to described light conductor top gradually by described end face, described micro-structural is formed by etching, described micro-structural is annular ditch groove or micro structure array, and the structure in described micro structure array is centrum, frustum, hemisphere or round platform.
13. a kind of LEDbulb lamp according to claim 1, is characterized in that described second luminous intensity distribution assembly is a reflection shield.
14. a kind of LEDbulb lamp according to any one of claim 1 to 13, it is characterized in that described first luminous intensity distribution assembly, the setting separated from one another of the second luminous intensity distribution assembly, between described first luminous intensity distribution assembly, the second luminous intensity distribution assembly, form one section of groove led to outside described LEDbulb lamp.
15. a kind of LEDbulb lamp according to any one of claim 14, it is characterized in that described first luminous intensity distribution assembly is connected with described first the Lights section, described second luminous intensity distribution assembly is connected with described secondary light source part, and described first the Lights section, secondary light source part connect a radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310261131.0A CN104251391A (en) | 2013-06-27 | 2013-06-27 | LED (light-emitting diode) bulb lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310261131.0A CN104251391A (en) | 2013-06-27 | 2013-06-27 | LED (light-emitting diode) bulb lamp |
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| Publication Number | Publication Date |
|---|---|
| CN104251391A true CN104251391A (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310261131.0A Pending CN104251391A (en) | 2013-06-27 | 2013-06-27 | LED (light-emitting diode) bulb lamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931328A (en) * | 2015-12-31 | 2017-07-07 | 欧普照明股份有限公司 | A kind of LED light device |
| CN106931329A (en) * | 2015-12-31 | 2017-07-07 | 欧普照明股份有限公司 | A kind of LED light source device |
-
2013
- 2013-06-27 CN CN201310261131.0A patent/CN104251391A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106931328A (en) * | 2015-12-31 | 2017-07-07 | 欧普照明股份有限公司 | A kind of LED light device |
| CN106931329A (en) * | 2015-12-31 | 2017-07-07 | 欧普照明股份有限公司 | A kind of LED light source device |
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Application publication date: 20141231 |