CN103557494A - Large-angle light-emitting diode (LED) bulb lamp - Google Patents
Large-angle light-emitting diode (LED) bulb lamp Download PDFInfo
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- CN103557494A CN103557494A CN201310499641.1A CN201310499641A CN103557494A CN 103557494 A CN103557494 A CN 103557494A CN 201310499641 A CN201310499641 A CN 201310499641A CN 103557494 A CN103557494 A CN 103557494A
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- bulb lamp
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Abstract
The invention discloses a large-angle light-emitting diode (LED) bulb lamp comprises a main radiator forming a bulb lamp body, a substrate fixed on the main radiator, a plurality of LED light sources arranged on the substrate, a reflection cup, a side diffusion cover and a top diffusion cover. The inner side wall of the reflection cup is provided with a reflection coating, so that the inner side wall serves as an inner light reflecting wall. The outer side wall of the reflection cup is also provided with a reflection coating, so that the outer side wall serves as an outer light reflecting wall. The reflection cup is fixed on the substrate and enables a part of the LED light sources to be located in the reflection cup, the remaining LED light sources are located outside the reflection cup, the side diffusion cover is located between the main radiator and the reflection cup, and the top diffusion cover covers the reflection cup. The large-angle LED bulb lamp reflects and diffuses light of the LED light sources in a regional mode through the reflection cup, the side diffusion cover and the top diffusion cover, the purposes of secondary optical light-distribution angle enlargement and large-angle light emergence are achieved, and light emergence of the lamp is even.
Description
Technical field
The present invention relates to LED technical field, relate more specifically to a kind of large-angle LED bulb lamp.
Background technology
LED a kind ofly can be converted into electric energy the semiconductor devices of luminous energy, and it has changed the luminous principle luminous with electricity-saving lamp tricolor powder of incandescent lamp tungsten filament, and adopts electroluminescence.In modern society, because the advantages such as LED volume is little, the life-span is long, light efficiency is high, radiationless and low-power consumption make people use more and more widely the illumination of LED lamp.
Because LED luminous has directionality, for unidirection luminous, and the bright dipping mode of existing LED lighting, be all luminous LED directly towards the light-emitting area (straight lighting-out tpye) of light fixture, or the light-emitting area of side direction light fixture (side is illuminated).It is luminous that such bright dipping mode can not reach full angle, causes bulb light angle little, has illumination dead angle, affects the illuminating effect in space, cannot reach the luminous intensity distribution of conventional incandescent, and this just needs us by secondary optical design, to realize the luminous intensity distribution of full angle.Therefore by secondary optical design, reach the key point that conventional incandescent light distribution effect is this technical field.In addition, current LED quantum efficiency is relatively low, and the electric energy conversion that only has 30% left and right is luminous energy, and other energy is all converted into heat energy, so (meet IEC standard) and realize the heat radiation that high power light fixture is good most important equally under limited light fixture volume.
Yet, existing wide-angle bulb lamp is in order to realize high power wide-angle, take and sacrifice radiating effect and the exiting surface uniformity is cost, this greatly reduces actual illuminating effect, and its lampshade is all designed to hemispherical integral type, has the shade that inner luminous intensity distribution ring produces on lampshade surface, cause lampshade surface bright dipping inhomogeneous, have a strong impact on optical effect, and the heat dispersion of its hemispherical overall lamp cover structure is poor, cannot accomplish high-power wide-angle.
Given this, be necessary to provide a kind of large-angle LED bulb lamp addressing the aforementioned drawbacks.
Summary of the invention
The object of this invention is to provide a kind of large-angle LED bulb lamp to address the deficiencies of the prior art.
To achieve these goals, the invention provides a kind of large-angle LED bulb lamp, it comprises the main radiator that forms bulb lamp main body, be fixed on the substrate on described main radiator, be arranged on the some LED light sources on described substrate, also comprise reflector, side diffusion shell and top diffusion shell, on the madial wall of described reflector, be provided with reflectance coating and form an interior reflection wall, the lateral wall of described reflector is also provided with reflectance coating and forms an outer reflection wall, described reflector be fixed on described substrate and make a part of described LED light source be positioned at described reflector within and remaining LED light source is positioned at outside described reflector, described side diffusion shell covers between described main radiator and reflector, described top diffusion shell covers on described reflector.
Preferably, described reflectance coating is diffuse reflection nano coating.
Preferably, described main radiator is made by ceramic material.
Preferably, described reflector is the radiator of being made by ceramic material.
Preferably, the surface of described interior reflection wall is for take the surface of revolution that a straight line is bus, and the surface of described outer reflection wall is for take the surface of revolution that an arc curve is bus.
Preferably, in one embodiment of this invention, described LED light source is white light LEDs, and described side diffusion shell and top diffusion shell are milky PC diffusion shell.
Preferably, in another embodiment of the present invention, described LED light source is blue-ray LED, and described side diffusion shell and top diffusion shell are yellow fluorescence cover.
Compared with prior art, large-angle LED bulb lamp of the present invention by with reflector by the LED light source on substrate every being divided into inside and outside two luminous zones, the light that send two luminous zones reflects through the inside and outside reflection wall of reflector respectively, and then by top diffusion shell and side diffusion shell, spread respectively, reach the effect that secondary optics expands light distribution angle, due to being changed, traditional hemispherical lampshade is designed to side diffusion shell and two parts of top diffusion shell to cover respectively inside and outside two luminous zones, avoid lampshade surface to occur the shade that reflector produces, thereby cause lampshade surface bright dipping inhomogeneous.Therefore, large-angle LED bulb lamp provided by the present invention has good outgoing light homogeneity, and its light-emitting area does not exist dark space.
By following description also by reference to the accompanying drawings, it is more clear that the present invention will become, and these accompanying drawings are used for explaining embodiments of the invention.
Accompanying drawing explanation
Fig. 1 is the stereogram of large-angle LED bulb lamp one embodiment of the present invention.
Fig. 2 is the three-dimensional exploded view of large-angle LED bulb lamp shown in Fig. 1.
Fig. 3 is the part-structure schematic diagram of large-angle LED bulb lamp shown in Fig. 1.
Fig. 4 is that large-angle LED bulb lamp shown in Fig. 3 is along the profile of C-C line.
Light when Fig. 5 is the work of the bubble of large-angle LED ball shown in Fig. 1 moves towards schematic diagram.
Fig. 6 and Fig. 7 have shown the optical effect contrast of large-angle LED bulb lamp shown in Fig. 1 and existing light fixture.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in embodiment is clearly and completely described, in accompanying drawing, similarly assembly label represents similar assembly.Obviously, below by the embodiment of description, be only the present invention part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
See figures.1.and.2, it has shown an embodiment of large-angle LED bulb lamp of the present invention.The large-angle LED bulb lamp 10 of the present embodiment comprises main radiator 11, substrate 12, LED light source 13, reflector 14, side diffusion shell 15, top diffusion shell 16 and lamp holder 17.Wherein, the LED light source 13 of the present embodiment is white light LEDs, and described side diffusion shell 15 and top diffusion shell 16 are milky PC diffusion shell, and this structural design can provide good illumination effect.And in another embodiment of the present invention, described LED light source 13 also can be designed to blue-ray LED, described side diffusion shell 15 and top diffusion shell 16 are selected yellow fluorescence cover.
Referring to figs. 1 through Fig. 4, in the present embodiment, described main radiator 11 is as the agent structure of bulb lamp 10, and its upper end is for installation base plate 12, and bottom is used for connecting lamp holder 17, wherein, the bottom surface of described substrate 12 is adjacent to and is fixed on main radiator 11, and its end face is provided with some LED light sources 13, and described reflector 14 is arranged on substrate 12, described side diffusion shell 15 covers between described main radiator 11 and reflector 14, and described top diffusion shell 16 covers on described reflector 14.In the present embodiment, described reflector 14 is to make with heat sink material, and it provides thermolysis as additional cooler.When bulb lamp 10 work, the heat that LED light source 13 produces is transmitted to main radiator 11 by substrate 12 and reflector 14 dispels the heat, and the design of the double lampshade of side diffusion shell 15 and top diffusion shell 16 can increase the gas permeability of lamp interior, thermal convection current effect is better, further increases the heat-sinking capability of light fixture.Preferably, the main radiator 11 of the present embodiment and reflector 14 make to provide better thermolysis by ceramic material.
Particularly, in the present embodiment, described reflector 14 is horn-like, its lower port (slot) is fixed on described substrate 12, and make within LED light source 13 parts on substrate 12 are positioned at this reflector 14, remainder is positioned at outside this reflector 14, thereby the some LED light sources 13 on substrate 12 are divided into peripheral LED light source and two luminous zones of inner ring LED light source.And the upper port of described reflector 14 (wide mouthful) diameter is greater than the diameter of described lower port, be used for installing described side diffusion shell 15 and top diffusion shell 16, wherein, described top diffusion shell 16 is convex disk shape, it is arranged on the inside edge of reflector 14 upper port, and described side diffusion shell 15 is curved surface annular shape, it has an annular top edge and an annular lower limb, described annular top edge is arranged on the outer ledge of described reflector 14 upper port, and described annular lower limb is arranged on main radiator.In order to realize concrete reflection function, (for example with spraying method, realizing) is set on the madial wall of described reflector 14 to be had reflectance coating 141 and forms an interior reflection wall, its lateral wall is also provided with reflectance coating 142 and forms an outer reflection wall, preferably, the surface of described interior reflection wall can be designed to a rotating curved surface structure, this surface of revolution take reflector 14 central shaft as axis and its bus be a straight line, and the surface of described outer reflection wall also can be designed to a rotating curved surface structure, this surface of revolution also take the central shaft of reflector 14 as axis but its bus is an arc curve.Wherein, the outer reflection wall that is coated with reflectance coating 142 is used for reflecting the light that peripheral LED light source 13 upwards sends, and makes light to side and projection downwards, and the design of arcuate structure makes light projection downwards wider; And the interior reflection wall that is coated with reflectance coating 141 is used for reflecting the light that diffusion inner ring LED light source 13 outwards sends, make evenly upwards projection of light, the light diffusion that side diffusion shell 15 and top diffusion shell 16 further carry out inside and outside reflection wall projection, to reach wide-angle bright dipping, make light fixture bright dipping more even.Preferably, the reflectance coating 141 and 142 being arranged on the interior lateral wall of reflector 14 is diffuse reflection nano coating, to strengthen reflecting effect.
As shown in Figure 5, LED light source 13 can upwards send the light of approximate bright rich distribution after connecting externally fed, these light are through the diffuse reflection effect of inside and outside reflection wall, and after the diffusion of side diffusion shell 15 and top diffusion 16 covers, changed the direction (as shown in the arrow in Fig. 5) of propagating, finally above light fixture, there is beam projecting side, side-lower, realized the object of wide-angle all-directional illumination.The present invention is designed to side diffusion shell 15 and 16 two parts of top diffusion shell to cover respectively inside and outside two luminous zones due to traditional hemispherical lampshade is changed, can avoid lampshade surface to occur the shade that reflector 14 produces and cause lampshade surface bright dipping inhomogeneous (as shown in Figure 6, there is part shadow in the surface of lampshade), and compared to monoblock type lampshade, side diffusion shell 15 of the present invention is all connected with the top of reflector 14 with top diffusion shell 16, therefore lampshade surface brightness does not very evenly have shade (as shown in Figure 7, dark circle is wherein the top of reflector 14 and lampshade surface not).
As mentioned above, large-angle LED bulb lamp tool of the present invention has the following advantages: the present invention is divided into side diffusion shell and two parts of top diffusion shell by traditional hemispherical lampshade, the subregion reflex that coordinates again reflector, effectively avoided because the inhomogeneous impact of surperficial bright dipping that secondary optical design brings, the diffuse reflection of the inside and outside reflection wall of reflector makes the angle of illumination become large, can make lighting angle be increased to more than 270 °, its large-angle LED bulb lamp light-emitting area compared to other form is more even, no dark space; Simultaneously, also met the star of american energy for the requirement of the distribution curve flux of replaceability incandescent lamp, and surpassed the light distribution requirement to full luminous intensity distribution type non-directional self-rectifying LED lamp by non-directional self-rectifying LED streetlamp energy-saving authentication techniques standard of CQC (CQC) general lighting, can obtain good economic benefits.In addition, the main radiator of usining can improve heat-sinking capability as the structural design of bulb lamp main body, in addition reflector is used as auxiliary radiator, can further increase radiating effect, and the design of the double lampshade of side diffusion shell and top diffusion shell can increase the gas permeability of lamp interior, thermal convection current effect is better, further increases the heat-sinking capability of light fixture; Bulb lamp of the present invention has high power good heat radiating ability, can be used for substituting the incandescent lamp of traditional 100W, is conducive to promote national energy-saving and reduces discharging about eliminating the enforcement of family expenses incandescent lamp plan, has economic results in society widely.
It should be noted that, in the present invention, the surface of inside and outside reflection wall is not limited to above-mentioned curve form, and any shape design that reaches good reflecting effect all may be utilized.
Invention has been described for above combination most preferred embodiment, but the present invention is not limited to the embodiment of above announcement, and should contain the various modifications of carrying out according to essence of the present invention, equivalent combinations.
Claims (7)
1. a large-angle LED bulb lamp, comprise the main radiator that forms bulb lamp main body, be fixed on the substrate on described main radiator, be arranged on the some LED light sources on described substrate, it is characterized in that: also comprise reflector, side diffusion shell and top diffusion shell, on the madial wall of described reflector, be provided with reflectance coating and form an interior reflection wall, the lateral wall of described reflector is also provided with reflectance coating and forms an outer reflection wall, described reflector be fixed on described substrate and make a part of described LED light source be positioned at described reflector within and remaining LED light source is positioned at outside described reflector, described side diffusion shell covers between described main radiator and reflector, described top diffusion shell covers on described reflector.
2. large-angle LED bulb lamp as claimed in claim 1, is characterized in that: described reflectance coating is diffuse reflection nano coating.
3. large-angle LED bulb lamp as claimed in claim 1, is characterized in that: described main radiator is made by ceramic material.
4. large-angle LED bulb lamp as claimed in claim 1, is characterized in that: described reflector is the radiator of being made by ceramic material.
5. large-angle LED bulb lamp as claimed in claim 1, is characterized in that: the surface of described interior reflection wall is for take the surface of revolution that a straight line is bus, and the surface of described outer reflection wall is for take the surface of revolution that an arc curve is bus.
6. the large-angle LED bulb lamp as described in claim 1-5 any one, is characterized in that: described LED light source is white light LEDs, and described side diffusion shell and top diffusion shell are milky PC diffusion shell.
7. the large-angle LED bulb lamp as described in claim 1-5 any one, is characterized in that: described LED light source is blue-ray LED, and described side diffusion shell and top diffusion shell are yellow fluorescence cover.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310499641.1A CN103557494A (en) | 2013-10-22 | 2013-10-22 | Large-angle light-emitting diode (LED) bulb lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310499641.1A CN103557494A (en) | 2013-10-22 | 2013-10-22 | Large-angle light-emitting diode (LED) bulb lamp |
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| CN103557494A true CN103557494A (en) | 2014-02-05 |
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| CN102305363A (en) * | 2011-08-30 | 2012-01-04 | 厦门立明光电有限公司 | Large-angle omnidirectional lighting LED (light emitting diode) lamp |
| CN102661495A (en) * | 2011-09-23 | 2012-09-12 | 香港应用科技研究院有限公司 | Large-range light emitting omni-directional led bulb |
| US20120230027A1 (en) * | 2011-03-07 | 2012-09-13 | Lighting Science Group Corporation | Led luminaire |
| US20130088848A1 (en) * | 2011-10-06 | 2013-04-11 | Intematix Corporation | Solid-state lamps with improved radial emission and thermal performance |
| CN203023840U (en) * | 2012-10-02 | 2013-06-26 | 康舒科技股份有限公司 | Light-emitting diode lamp |
| EP2644977A2 (en) * | 2010-11-26 | 2013-10-02 | Seoul Semiconductor Co., Ltd. | Led lighting device |
| CN203517642U (en) * | 2013-10-22 | 2014-04-02 | 深圳市九洲光电科技有限公司 | Large-angle LED (light-emitting diode) bulb lamp |
-
2013
- 2013-10-22 CN CN201310499641.1A patent/CN103557494A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2644977A2 (en) * | 2010-11-26 | 2013-10-02 | Seoul Semiconductor Co., Ltd. | Led lighting device |
| US20120230027A1 (en) * | 2011-03-07 | 2012-09-13 | Lighting Science Group Corporation | Led luminaire |
| CN102305363A (en) * | 2011-08-30 | 2012-01-04 | 厦门立明光电有限公司 | Large-angle omnidirectional lighting LED (light emitting diode) lamp |
| CN102661495A (en) * | 2011-09-23 | 2012-09-12 | 香港应用科技研究院有限公司 | Large-range light emitting omni-directional led bulb |
| US20130088848A1 (en) * | 2011-10-06 | 2013-04-11 | Intematix Corporation | Solid-state lamps with improved radial emission and thermal performance |
| CN203023840U (en) * | 2012-10-02 | 2013-06-26 | 康舒科技股份有限公司 | Light-emitting diode lamp |
| CN203517642U (en) * | 2013-10-22 | 2014-04-02 | 深圳市九洲光电科技有限公司 | Large-angle LED (light-emitting diode) bulb lamp |
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Application publication date: 20140205 |