CN203517642U - Large-angle LED (light-emitting diode) bulb lamp - Google Patents

Large-angle LED (light-emitting diode) bulb lamp Download PDF

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Publication number
CN203517642U
CN203517642U CN201320653153.7U CN201320653153U CN203517642U CN 203517642 U CN203517642 U CN 203517642U CN 201320653153 U CN201320653153 U CN 201320653153U CN 203517642 U CN203517642 U CN 203517642U
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CN
China
Prior art keywords
reflector
bulb lamp
reflection
diffusion shell
angle
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Expired - Fee Related
Application number
CN201320653153.7U
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Chinese (zh)
Inventor
陈小康
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Shenzhen Jiuzhou Optoelectronics Technology Co Ltd
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Shenzhen Jiuzhou Optoelectronics Technology Co Ltd
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Priority to CN201320653153.7U priority Critical patent/CN203517642U/en
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Publication of CN203517642U publication Critical patent/CN203517642U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a large-angle LED (light-emitting diode) bulb lamp. The large-angle LED bulb lamp comprises a main heat dissipater forming a bulb lamp main body, a substrate fixed on the main heat dissipater, a plurality of LED light sources arranged on the substrate, a reflection cup, a side diffusion cover and a top diffusion cover, wherein a reflection coating is arranged on the inner sidewall of the reflection cup to form an inner reflection wall; a reflection coating is also arranged on the outer sidewall of the reflection cup to form an outer reflection wall; the reflection cup is fixed on the substrate so that a part of the LED light sources is located in the reflection cup and the remainder LED light sources are located outside the reflection cup; the side diffusion cover covers between the main heat dissipater and the reflection cup; the top diffusion cover covers on the reflection cup. According to the large-angle LED bulb lamp disclosed by the utility model, the light rays of the LED light sources are regionally reflected and diffused by virtue of the arrangement of the reflection cup, the side diffusion cover and the top diffusion cover, so as to achieve the effect of secondarily optically expanding a light distribution angle and the purpose of large-angle light emitting, thus the light emitting of the lamp is more uniform.

Description

Large-angle LED bulb lamp
Technical field
The utility model relates to LED technical field, relates 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.
Utility model content
The purpose of this utility model is to provide a kind of large-angle LED bulb lamp to address the deficiencies of the prior art.
To achieve these goals, the utility model 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 ceramic heat sink.
Preferably, described reflector is ceramic heat sink.
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 an embodiment of the present utility model, 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 utility model, 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 utility model 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 utility model 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 utility model will become, and these accompanying drawings are used for explaining embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is the stereogram of the utility model large-angle LED bulb lamp one embodiment.
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.
The specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, 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 utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
See figures.1.and.2, it has shown an embodiment of the utility model large-angle LED bulb lamp.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 utility model, 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 utility model 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, and compared to monoblock type lampshade, side diffusion shell 15 of the present utility model is all connected with the top of reflector 14 with top diffusion shell 16, so lampshade surface brightness does not very evenly have shade.
As mentioned above, large-angle LED bulb lamp tool of the present utility model has the following advantages: the utility model 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 utility model 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 utility model, 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.
Above combination most preferred embodiment is described the utility model, but the utility model is not limited to the embodiment of above announcement, and should contain the various modifications of carrying out according to essence of the present utility model, 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 ceramic heat sink.
4. large-angle LED bulb lamp as claimed in claim 1, is characterized in that: described reflector is ceramic heat sink.
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.
CN201320653153.7U 2013-10-22 2013-10-22 Large-angle LED (light-emitting diode) bulb lamp Expired - Fee Related CN203517642U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320653153.7U CN203517642U (en) 2013-10-22 2013-10-22 Large-angle LED (light-emitting diode) bulb lamp

Publications (1)

Publication Number Publication Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103557494A (en) * 2013-10-22 2014-02-05 深圳市九洲光电科技有限公司 Large-angle light-emitting diode (LED) bulb lamp
CN104344329A (en) * 2014-10-27 2015-02-11 立达信绿色照明股份有限公司 Thermochromic LED (Light-emitting Diode) lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103557494A (en) * 2013-10-22 2014-02-05 深圳市九洲光电科技有限公司 Large-angle light-emitting diode (LED) bulb lamp
CN104344329A (en) * 2014-10-27 2015-02-11 立达信绿色照明股份有限公司 Thermochromic LED (Light-emitting Diode) lamp

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140402

Termination date: 20171022

CF01 Termination of patent right due to non-payment of annual fee