CN103307469A - Light emitting device and omnidirectional illumination device provided with light emitting device - Google Patents
Light emitting device and omnidirectional illumination device provided with light emitting device Download PDFInfo
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- CN103307469A CN103307469A CN2012100717602A CN201210071760A CN103307469A CN 103307469 A CN103307469 A CN 103307469A CN 2012100717602 A CN2012100717602 A CN 2012100717602A CN 201210071760 A CN201210071760 A CN 201210071760A CN 103307469 A CN103307469 A CN 103307469A
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Abstract
The invention relates to a light emitting device (100), which comprises a heat radiator (1), a plurality of light emitting assemblies (2) and a driver casing (3), wherein the light emitting assemblies (2) are connected with the heat radiator (1) in a heat conduction way, the driver casing (3) is provided with a first peripheral wall (31) and an end surface (311), the end surface (311) is limited by the first peripheral wall (31), the first peripheral wall (31) is provided with at least one first passage (32) which is formed in the first peripheral wall (31), each first passage (32) is opened at the end surface (311) and is communicated with air flow of surrounding environments, the heat radiator (1) is provided with a second passage (33), and the air flow in the first passage (32) is communicated with the air flow in the second passage (33). The light emitting device has the advantages that the omnidirectional illumination is realized; the distribution of light intensity in each direction is uniform; the heat radiating performance is better; and the structure is simple, and the manufacturing is easy. The invention also provides an omnidirectional illumination device provided with the light emitting device.
Description
Technical field
The present invention relates to a kind of light-emitting device.In addition, the invention still further relates to a kind of omnidirectional lighting device with light-emitting device of the above-mentioned type.
Background technology
In current lighting device, the LED luminescence component is widely used.In the omnidirectional lighting device that people also use the LED luminescence component more and more.This omnidirectional lighting device need to realize that uniform light distributes in the scope that surpasses 320 degree.Particularly on American market, lighting device must satisfy the Energy Star standard, thereby just can sell as energy-saving electronic device on American market.A huge challenge is how to produce the omnidirectional lighting device of a kind of low BOM and ground manufacturing cost.How simultaneous being problematic in that realizes a kind of omnidirectional lighting device, and it can provide high brightness, and can utilize heat abstractor to arrange by reasonable manner and lead the heat that is distributed by LED luminescence component and driver.Need between the design of omnidirectional lighting device and light distribution performance, compromise, with the superperformance that reaches omnidirectional lighting and good heat dispersion for this reason.
Omnidirectional lighting device in the prior art solves the problems referred to above usually in the following ways.For example, adopt very complicated heat abstractor, many LED luminescence components are arranged on each surface of heat abstractor, thereby realize omnidirectional lighting; Perhaps on an orbicule, will be furnished with the led array that is similar to compound eye; Perhaps use the bulb with contactless fluorescent material; Perhaps use guide structure; Perhaps adopt catoptric arrangement in the inside of bulb.Yet the existing general problem of the omnidirectional lighting device of the above-mentioned type is, it generally has high manufacture difficulty and high Master Cost.
Summary of the invention
For solving the problems of the technologies described above, the present invention proposes a kind of light-emitting device, this light-emitting device can be realized omnidirectional lighting, and its light distribution on all directions is all very even, and it also has good heat dispersion simultaneously, and it is simple in structure, and is easy to manufacture.In addition, of the present invention a kind of omnidirectional lighting device with light-emitting device of the above-mentioned type proposed also.
First purpose of the present invention realizes thus by a kind of light-emitting device, and this light-emitting device comprises: radiator; A plurality of and radiator is led hot linked luminescence component; Actuator housing, the end face that actuator housing has the first perisporium and limited by the first perisporium, wherein, the first perisporium has at least one first passage that is formed in the first perisporium, first passage is opened in the end and is communicated with ambient air flow, and radiator has second channel, and first passage and second channel each other air-flow communicate.In design of the present invention, be formed with passage in the perisporium of actuator housing, that is to say, the air-flow that is used for cooling can be in the internal flow of perisporium.After the heat that driver in the actuator housing produces was delivered on the perisporium, the air-flow that can be flowed was taken away, and this has played thermolysis to a certain degree to driver.In addition, the heat that driver produces is to luminescence component, especially the impact of the LED luminescence component of heat sensitivity is lowered.In addition, the passage in the actuator housing provides radiating airflow for radiator, thereby has formed a kind of convection effect at radiator, and this has strengthened the radiating effect of radiator significantly.
Preferably, radiator comprises heat radiation main body and a plurality of cooling fin.Cooling fin can increase the contact area of radiator and surrounding environment significantly, has strengthened the radiating effect of radiator.
Advantageously, the heat radiation main body have substrate and from the substrate extended the second perisporium, be formed with the end plate that extends radially outwardly at the second perisporium, wherein cooling fin is arranged between the second perisporium and the end plate.Therefore because cooling fin directly contacts with the second perisporium and the end plate of heat radiation main body, the heat from each position of heat radiation main body can pass to cooling fin rapidly, and is arranged rapidly by cooling fin and to fall apart in surrounding environment.
According to a preferred design of the present invention, substrate is formed for carrying the installed surface of the part in the luminescence component, and end plate is formed for carrying second installed surface of the another part in the luminescence component.Advantageously, the first installed surface and the second installed surface are arranged to be arranged in the light that the luminescence component on the first installed surface and the second installed surface sends and realize illumination in omnidirectional's angle.In design of the present invention, so-called omnidirectional angle is not the angular range of 360 degree truly, luminescence component according to the present invention is as a kind of remodeling lamp, and its light of launching can be as existing incandescent lamp bulb throws light in the angles of 360 degree almost.In addition, be provided with two installed surfaces in order in design of the present invention, to realize omnidirectional lighting, these two installed surfaces have respectively different sensings, thereby guarantee to be arranged in the angular ranges that light that the luminescence component on these installed surfaces sends can cover 360 degree as much as possible.
A preferred design according to the present invention proposes, and second channel is formed in the zone between cooling fin of end plate.Usually end plate is to have certain thickness, and this second channel extends at the thickness direction of end plate.In addition, the openend of second channel is passed in the zone between the adjacent cooling fin.Because second channel communicates with the first passage air-flow, just can be passed in the second channel from the air-flow of first passage, and and then flow through cooling fin.This structure utilizes convection current to strengthen significantly the radiating effect of radiator.
Preferably, first passage comprises the first openend and the second openend, and wherein the first openend is formed on the end face that the first perisporium limits, and the second openend is formed in the zone away from the end face of the first perisporium with the second perisporium.Enter the inside of first passage from the air of surrounding environment by the second openend, and and then enter into second channel by the first openend.In design of the present invention, each first passage corresponds respectively to a second channel.In most preferred design, between two adjacent cooling fins, all can there be a second channel to communicate with first passage.In addition, first passage becomes airtight with the Position Design that second channel joins, and prevents that air-flow is from flowing out between it.
Advantageously, light-emitting device also comprises cell-shell, wherein cell-shell comprises the first cell-shell part and the second cell-shell part, the part outside the second openend of partially enclosed the second installed surface of wherein partially enclosed the first installed surface of the first cell-shell, and the second cell-shell and the first perisporium.Cell-shell can prevent that the dirt in the surrounding environment from polluting luminescence component, thereby has improved the adaptive capacity to environment of light-emitting device.Cell-shell itself also can produce certain optical effect simultaneously.In design of the present invention, the various piece of cell-shell has only covered each installed surface of luminescence component, and the second openend of first passage is not covered by cell-shell, and therefore the air-flow from surrounding environment just can be passed in the first passage, and further offers radiator.
Preferably, the first perisporium has catoptric arrangement in the zone of the second cell-shell partial coverage.Distribute in larger angle by the light that can make luminescent module with catoptric arrangement, thereby more be conducive to realize omnidirectional lighting.
According to preferred design of the present invention, luminescence component is the LED luminescence component.It is high that the LED luminescence component has luminous efficiency, and the life-span is long, and the advantage of environmental protection more.
Another object of the present invention is by a kind of omnidirectional lighting device realization, and this omnidirectional lighting device has the light-emitting device of the above-mentioned type.Omnidirectional lighting device according to the present invention is more even in the light distribution of all directions, and it has good radiating effect simultaneously, and it is simple in structure, and is easy to manufacture.In addition, be LED remodeling lamp according to omnidirectional lighting device of the present invention, be used for substituting the light fixture with omnidirectional lighting function of existing incandescent lamp or other types.
Description of drawings
Accompanying drawing consists of the part of this specification, is used for helping further to understand the present invention.These accompanying drawings illustrate embodiments of the invention, and are used for illustrating principle of the present invention with specification.Identical parts represent with identical label in the accompanying drawings.Shown in the figure:
Fig. 1 is the sectional view according to light-emitting device of the present invention;
Fig. 2 is the decomposition diagram according to light-emitting device of the present invention;
Fig. 3 is the top view according to light-emitting device of the present invention;
Fig. 4 is the upward view according to light-emitting device of the present invention.
The specific embodiment
Fig. 1 shows the sectional view according to light-emitting device 100 of the present invention.As seen from the figure, this light-emitting device 100 comprises: radiator 1; A plurality of and radiator 1 is led hot linked luminescence component 2; The end face 311 that actuator housing 3, actuator housing 3 have the first perisporium 31 and limited by the first perisporium 31.The first perisporium 31 has at least one first passage 32 that is formed in the first perisporium 31, this first passage 32 is opened at end face 311 places and is communicated with ambient air flow, and radiator 1 has second channel 33, and first passage 32 and second channel 33 each other air-flow communicate.In design of the present invention, the first perisporium 31 has certain thickness, thereby allow between the inner surface of the first perisporium 31 and outer surface, to form first passage 32, air-flow from surrounding environment just can flow in the inside of the first perisporium 31, thereby takes away at least part of heat from heat generating components such as drivers.
In design of the present invention, this luminescence component 2 is LED luminescence components, uses the light-emitting device 100 according to the present invention of this LED luminescence component to be designed to LED remodeling lamp.
Further as seen, radiator 1 comprises heat radiation main body 11 and a plurality of cooling fin 5 from Fig. 1, and these cooling fins 5 distributed in upwards being in week radially of heat radiation main body 11.In a preferred embodiment of the present invention, heat radiation main body 11 has substrate 111 and extended the second perisporium 112 from the substrate 111, end at the second perisporium 112 is formed with the end plate 113 that extends radially outwardly, and wherein cooling fin 5 connects the second perisporium 111 and end plate 113.Substrate 111 is formed for carrying the first installed surface of the part in the luminescence component 2, and end plate 113 is formed for carrying second installed surface of the another part in the luminescence component 2.
In addition, further visible the first installed surface and the second installed surface are arranged to be arranged in the light that the luminescence component 2 on the first installed surface and the second installed surface sends and throw light in omnidirectional's angle from figure.In the present embodiment, the first installed surface and the second installed surface are two installed surfaces parallel to each other, and be arranged on these two installed surfaces luminescence component 2 each other back to, the transmit direction that is to say light is reciprocal, thereby the luminescence component 2 on the first installed surface is mainly used in realizing the illumination of the episphere of light-emitting device 100, and the luminescence component 2 on the second installed surface is mainly used in realizing the illumination of lower semisphere.In other embodiments of the invention, can adjust the angle of the second installed surface, for example the second installed surface can be designed to tilt, thereby and between the first installed surface shape at a certain angle.
In Fig. 1, can also observe second channel 33.Second channel 33 is formed in the zone between cooling fin 5 of end plate 113.With reference to figure 4 as seen, second channel 33 is passed between two adjacent cooling fins 5.In other preferred embodiment of the present invention, end plate 113 might not be formed on the end of the second perisporium 112.End plate 113 can be connected with the end of each cooling fin 5, thereby limits second channel 33 with cooling fin 5.This structure has been avoided beginning to form the through hole of second channel 33 at end plate 113, and can adjust more easily end plate 113 with respect to the angle of inclination of substrate 111.
From Fig. 1, also can be observed first passage 32, first passage 32 comprises the first openend 321 and the second openend 322, wherein the first openend 321 is formed on the end face that the first perisporium 31 limits, and the second openend 322 is formed in the zone away from end face 311 with the second perisporium 31.
In addition, light-emitting device of the present invention uses as LED remodeling lamp, so light-emitting device 100 also comprises cell-shell 4, and this cell-shell 4 makes light-emitting device of the present invention seem more attractive in appearance.Simultaneously, owing to using the LED luminescence component as light source according to light-emitting device of the present invention, cell-shell 4 itself also has secondary optical design, can carry out to the light that the LED luminescence component sends necessary adjustment, to realize good light distribution performance.Wherein cell-shell 4 comprises the first cell-shell part 41 and the second cell-shell part 42, wherein the first cell-shell part 41 sealings the first installed surface, and the part outside the second openend 322 of the second cell-shell part 42 sealing the second installed surfaces and the first perisporium 31.From Fig. 4 further as seen, the second openend 322 is exposed to outside the second cell-shell part 42, thereby the air-flow from surrounding environment can enter into first passage 32 by the second openend 322, and enter between the cooling fin 5 by second channel 33, air-flow from second channel 33 can flow through on the surface of cooling fin 5, thereby take away fast the heat on the cooling fin 5, this has strengthened the radiating effect of radiator 1 significantly.
In addition, can observe in Fig. 1, radiator 1 is supported on the end face 311 that the first perisporium 31 of actuator housing 3 limits, and firmly is supported on the actuator housing 3 in order to make radiator 1, be provided with a protuberance below radiator 1, this protuberance extend in the actuator housing 3.In addition, first passage 32 just aligns with second channel 33, thereby form airtight connection in the position that it joins, this prevents that air-flow is from flowing out between it, thereby prevent that air-flow from entering the zone that the second cell-shell part 42 covers, avoid the dirt in the air-flow to pollute luminescence component 2, affected the performance of light-emitting device.
Fig. 2 shows the decomposing schematic representation according to light-emitting device 100 of the present invention.Can clearly see according to the position relationship between all parts of light-emitting device 100 of the present invention in from this schematic diagram.Radiator 1 according to the present invention is arranged in the middle part of the whole device 100 of giving out light, and uses as the carrier of luminescence component 2.
Fig. 3 and Fig. 4 show respectively the top and bottom perspective views according to luminescence component 100 of the present invention.From figure, can clearly observe the openend of between two adjacent cooling fins 5, opening of second channel 33, and the second openend 322 of first passage 32.Realized that by the openend of the second openend 322 and second channel 33 air-flow between first passage 32 and the second channel 33 communicates, thereby strengthened the radiating effect of radiator 1.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All any modifications of doing within the spirit and principles in the present invention, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Reference number
1 radiator
11 heat radiation main bodys
111 substrates
112 second perisporiums
113 end plates
2 luminescence components
3 actuator housings
31 first perisporiums
311 end faces
32 first passages
321 first openends
322 second openends
33 second channels
4 cell-shells
41 first cell-shell parts
42 second cell-shell parts
5 cooling fins
100 light-emitting devices
Claims (12)
1. a light-emitting device (100) comprising: radiator (1); A plurality of and described radiator (1) is led hot linked luminescence component (2); Actuator housing (3), the end face (311) that described actuator housing (3) has the first perisporium (31) and limited by described the first perisporium (31), it is characterized in that, described the first perisporium (31) has at least one first passage (32) that is formed in described the first perisporium (31), described first passage (32) is located to open and is communicated with ambient air flow at described end face (311), and described radiator (1) has second channel (33), and described first passage (32) and described second channel (33) each other air-flow communicate.
2. light-emitting device according to claim 1 (100) is characterized in that, described radiator (1) comprises heat radiation main body (11) and a plurality of cooling fin (5).
3. light-emitting device according to claim 2 (100), it is characterized in that, described heat radiation main body (11) has substrate (111) and goes up extended the second perisporium (112) from described substrate (111), be formed with the end plate (113) that extends radially outwardly at described the second perisporium (112), wherein said cooling fin (5) is arranged between described the second perisporium (111) and the described end plate (113).
4. light-emitting device according to claim 3 (100), it is characterized in that, described substrate (111) is formed for carrying the first installed surface of the part in the described luminescence component (2), and described end plate (113) is formed for carrying second installed surface of the another part in the described luminescence component (2).
5. light-emitting device according to claim 4 (100), it is characterized in that, described the first installed surface and described the second installed surface are arranged to be arranged in the light that the described luminescence component (2) on described the first installed surface and described the second installed surface sends and realize illumination in the angle of omnidirectional.
6. luminescence component according to claim 3 (100) is characterized in that, described second channel (33) is formed on the zone between the described cooling fin (5) of being arranged in of described end plate (113).
7. light-emitting device according to claim 5 (100), it is characterized in that, described first passage (32) comprises the first openend (321) and the second openend (322), wherein said the first openend (321) is formed in the described end face (311), and described the second openend (322) is formed in the zone away from described end face (311) with described the second perisporium (31).
8. light-emitting device according to claim 7 (100), it is characterized in that, described light-emitting device (100) also comprises cell-shell (4), wherein said cell-shell (4) comprises the first cell-shell part (41) and the second cell-shell part (42), described the first installed surface of wherein said the first cell-shell part (41) sealing, and the part outside described second openend (322) of described the second cell-shell part (42) described the second installed surface of sealing and described the first perisporium (31).
9. light-emitting device according to claim 8 (100) is characterized in that, described the first perisporium (31) has catoptric arrangement in the zone that described the second cell-shell part (42) covers.
10. each described light-emitting device in 9 according to claim 1 is characterized in that, each described first passage (32) corresponds respectively to a described second channel (33).
11. each described light-emitting device (100) in 9 is characterized in that according to claim 1, described luminescence component (2) is the LED luminescence component.
12. an omnidirectional lighting device is characterized in that, described omnidirectional lighting device has according to claim 1 each described light-emitting device in 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210071760.2A CN103307469B (en) | 2012-03-16 | 2012-03-16 | Light-emitting device and the omnidirectional lighting device with this light-emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210071760.2A CN103307469B (en) | 2012-03-16 | 2012-03-16 | Light-emitting device and the omnidirectional lighting device with this light-emitting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103307469A true CN103307469A (en) | 2013-09-18 |
| CN103307469B CN103307469B (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210071760.2A Expired - Fee Related CN103307469B (en) | 2012-03-16 | 2012-03-16 | Light-emitting device and the omnidirectional lighting device with this light-emitting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633498A (en) * | 2015-02-06 | 2015-05-20 | 许定国 | Multi-light-source bulb lamp |
| CN105090766A (en) * | 2014-04-15 | 2015-11-25 | 鸿富锦精密工业（深圳）有限公司 | LED light fixture |
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| US20080310162A1 (en) * | 2007-06-13 | 2008-12-18 | James Thomas | LED light fixture with internal power supply |
| CN201373363Y (en) * | 2008-12-19 | 2009-12-30 | 康佳集团股份有限公司 | Radiating assembly, backboard and lamp |
| CN201502904U (en) * | 2009-10-10 | 2010-06-09 | 深圳市兰普源照明科技股份有限公司 | LED bulb lamp |
| US7794116B2 (en) * | 2008-07-09 | 2010-09-14 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | LED lamp with a heat dissipation device |
| 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 |
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2012
- 2012-03-16 CN CN201210071760.2A patent/CN103307469B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080310162A1 (en) * | 2007-06-13 | 2008-12-18 | James Thomas | LED light fixture with internal power supply |
| US7794116B2 (en) * | 2008-07-09 | 2010-09-14 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | LED lamp with a heat dissipation device |
| CN201373363Y (en) * | 2008-12-19 | 2009-12-30 | 康佳集团股份有限公司 | Radiating assembly, backboard and lamp |
| CN201502904U (en) * | 2009-10-10 | 2010-06-09 | 深圳市兰普源照明科技股份有限公司 | LED bulb lamp |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090766A (en) * | 2014-04-15 | 2015-11-25 | 鸿富锦精密工业（深圳）有限公司 | LED light fixture |
| CN105090766B (en) * | 2014-04-15 | 2017-12-08 | 陈伟东 | Led lamp |
| CN104633498A (en) * | 2015-02-06 | 2015-05-20 | 许定国 | Multi-light-source bulb lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103307469B (en) | 2016-05-11 |
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Effective date of registration: 20181219 Address after: Munich, Germany Patentee after: Landes Vance Address before: Munich, Germany Patentee before: Osram Co., Ltd. |
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