CN201066094Y - LED illumination device - Google Patents
LED illumination device Download PDFInfo
- Publication number
- CN201066094Y CN201066094Y CNU2007200697567U CN200720069756U CN201066094Y CN 201066094 Y CN201066094 Y CN 201066094Y CN U2007200697567 U CNU2007200697567 U CN U2007200697567U CN 200720069756 U CN200720069756 U CN 200720069756U CN 201066094 Y CN201066094 Y CN 201066094Y
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- Prior art keywords
- led
- illuminating module
- lighting device
- luminous intensity
- led lighting
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- 238000005286 illumination Methods 0.000 title description 2
- 238000003079 width control Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 10
- 239000003990 capacitor Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 240000007320 Pinus strobus Species 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
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- Fastening Of Light Sources Or Lamp Holders (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
An LED illuminating apparatus includes a housing and a plurality of LEDs. The LEDs form a plurality of LED irradiation modules and are accepted in the housing. Each LED irradiation module is provided with at least two LEDs. The irradiation modules are all connected in parallel. The LEDs are arranged in an external convex cambered surface shape along the irradiation direction of the LEDs. The irradiation modules form an irradiation array which is provided with at least two irradiation modules on each row and line. At least the irradiation intensities of two irradiation modules are different among the irradiation modules.
Description
[technical field]
The utility model relates to the LED lighting technical field, or rather, relates to a kind of LED lighting device with better illuminating effect.
[background technology]
Development and maturation along with the LED technology, the performance indications of LED increase substantially day by day, the light efficiency of white light LEDs has has met or exceeded the light efficiency level of ordinary incandescent lamp at present, and luminous flux is also increasing considerably, and makes LED obtain using widely at lighting field.LED compare with the energy-saving lighting lamp of general photo-voltaic power supply adapted have the life-span long, heating is low, not fragile, power consumption is little and more energy-conservation outstanding advantage, people it be described as 21 century replace fluorescent lamps and incandescent lamp the 4th generation lighting source.
Along with LED increasingly extensive application on lighting device, in order to satisfy the demand of people's brightness of illumination more, the lighting device that with LED is light source now all comprises the LED module that a lot of bars are connected usually, then with these illuminating module common integrated light source that forms the LED lighting device in parallel.But, because LED has specific lighting angle, can't be as conventional light source lighting angle big, and single light emission direction has influenced the uniformity of lighting apparatus illuminating effect to a great extent, and occur the ring of light or blackening easily, the illuminating effect that causes lighting device is not very desirable.
[utility model content]
Technical problem to be solved in the utility model is to overcome the defective that above-mentioned prior art exists, and a kind of illuminating effect LED lighting device preferably is provided.
The utility model is achieved through the following technical solutions: a kind of LED lighting device, comprise housing and some LED, described LED forms some LED illuminating module and is contained in the housing, each LED illuminating module is provided with at least two LEDs, described illuminating module is connected in parallel, described LED is the configuration of spirogyrate arc surfaced towards the LED light direction, described illuminating module forms a light emitting array, this light emitting array is respectively equipped with at least two illuminating module on each row and column, have the luminous intensity difference of two illuminating module in the described illuminating module at least.
The lighting angle of described LED and the luminous intensity of illuminating module are according to the light distribution requirements setting.
Described light distribution requirements is bat shape luminous intensity distribution or circular luminous intensity distribution.
The lighting angle difference that has two LEDs among the LED that is provided with on the described illuminating module at least.
The diapire of described housing is provided with a curved base, and described LED is close to this curved base surface by circuit board and installs, and makes the LED on the circuit board be the configuration of spirogyrate arc surfaced along the curved base surface towards the LED light direction.
Described curved base has at least one to be circular arc in two orthogonal cross sections.
Described curved base is one-body molded and form or separately moulding by housing, and described housing is made by the good material of heat conductivility.
Described LED lighting device can be LED street lamp, LED Projecting Lamp or LED Tunnel Lamp.
The luminous intensity of illuminating module is controlled by the series resistance circuit in the described illuminating module.
The luminous intensity of illuminating module is controlled by pulse width control circuit in the described illuminating module.
Compared with prior art, LED forms some illuminating module that have two LEDs at least in the LED lighting device that the utility model disclosed, and described illuminating module forms a light emitting array, this light emitting array is gone and is listed at each and is respectively equipped with at least two illuminating module, by LED being carried out many modularity designs, make more flexibly and trickle to the adjustment of the luminous intensity of illuminating module, simultaneously LED is the configuration of spirogyrate arc surfaced towards the LED light direction, make the illuminating effect of LED lighting device be more prone to reach light distribution requirements, avoid the appearance of the ring of light or blackening, thereby improved the illuminating effect of LED lighting device effectively.
[description of drawings]
Fig. 1 is the three-dimensional exploded view of the utility model LED lighting device.
Fig. 2 is the utility model LED lighting device LED illuminating module schematic diagram.
Fig. 3 is the three-dimensional exploded view of LED lens devices in the utility model LED lighting device.
Fig. 4 is the circuit diagram of illuminating module in the utility model LED lighting device.
[specific embodiment]
See also shown in Figure 1, the LED lighting device 8 that present embodiment disclosed comprises housing 1, circuit board 2, LED (not shown) and lens devices 3 thereof, reflection unit 4, sealing ring 5 and light-emitting plate 6, wherein, described LED and lens devices 3 thereof are contained in the described housing 1, described light-emitting plate 6 is fixed on the housing 1 and with described LED and lens devices 3 thereof and encloses in this housing 1, and described LED is the configuration of spirogyrate arc surfaced towards light-emitting plate 6 directions in described housing 1.
Described housing 1 is made by the good material of heat conductivility (such as aluminium), and this housing 1 comprises a diapire 10, four sidewalls 11 and surrounds the receiving space 12 that forms by diapire 10 and sidewall 11.Described diapire 10 mediads protrude the curved base 110 that formation one is used to support described circuit board 2 outward, and 110 two orthogonal cross sections of this curved base all are evagination circular arc, and the radius of evagination circular arc can be designed to different values according to actual needs.Certainly curved base 110 also can be designed to other shapes, is evagination circular arc as curved base 110 towards the cross section of light-emitting plate 6, and in the cross section of another vertical with it direction shape linearly.Also be provided with a support 13, some fin 14 on the described housing 1, described support 13 is mainly used in support fixation housing 1, it links to each other with housing 1 by screw 15, on support 13, also be provided with the locating hole 130 that is used for fixing LED lighting device 8, LED lighting device 8 be fixed on third party's object so that pass locating hole 130 with screw etc. when using.
See also shown in Figure 2ly, described circuit board 2 is one to have the flexible PCB of good heat-conducting, and described LED installs by circuit board 2 next-door neighbour's curved bases 110 surfaces, makes that the LED on the circuit board 2 is the configuration of spirogyrate arc surfaced towards light direction.Described LED form one comprise illuminating module 21,22,23,24,25,26,27 and 21 ', 22 ', 23 ', 24 ', 25 ', 26 ', 27 ' 2 * 7 light emitting array.Described illuminating module 21,22,23,24,25,26,27 and 21 ', 22 ', 23 ', 24 ', 25 ', 26 ', 27 ' each is provided with at least two LEDs.Described illuminating module 21,22,23,24,25,26,27 and 21 ', 22 ', 23 ', 24 ', 25 ', 26 ', 27 ' in have at least the luminous intensity of two illuminating module different.In addition, the lighting angle of mounted LEDs can be identical on each illuminating module in the described illuminating module, also can be different, and the lighting angle of LED is inequality to small part in the present embodiment.Described illuminating module 21,22,23,24,25,26,27 and 21 ', 22 ', 23 ', 24 ', 25 ', 26 ', 27 ' between be connected in parallel.Described illuminating module 21,22,23,24,25,26,27 and 21 ', 22 ', 23 ', 24 ', 25 ', 26 ', 27 ' control the size of electric current by being provided with of circuit, thereby the luminous intensity of control illuminating module, the concrete luminous intensity of illuminating module is according to actual light distribution requirements setting, such as in road lighting, the comparatively desirable luminous intensity distribution of street lamp is a bat shape luminous intensity distribution, and the concrete luminous intensity of illuminating module just is provided with according to the requirement of bat shape luminous intensity distribution in the LED street lamp so.Certainly, also other light distribution requirements such as circular luminous intensity distribution of Shi Ji light distribution requirements.
See also shown in Figure 3, described LED and lens devices 3 thereof comprise LED and the lens devices 30 that is used with this LED, described lens devices 30 is used to assemble the light that LED sends, and described lens devices 30 comprises lens 300 and supports the lens carrier 301 of these lens 300.Described lens 300 comprise a lens body portion 3000 and holding part 3001, described lens carrier 301 is provided with a light-reflecting portion 3010, this light-reflecting portion 3010 roughly is the parabolic surface shape, the surface of described light-reflecting portion 3010 is contoured diffuse surface, such as the small pit, projection or the ripple that on the inner surface of described light-reflecting portion 3010, are formed with rule or irregular different shape, such as forming one deck frosted layer (not drawing among the figure), described in addition light-reflecting portion 3010 surfaces are provided with one deck reflective membrane; Be provided with a through hole 3011 in the lower central position of this light-reflecting portion 3010, so that described LED passes; Be provided with an annular platform 3012 in described light-reflecting portion 3010 upper ends and the supporting side walls 3013 that forms be set by extending upward along annular platform 3012 outsides, described annular platform 3012 surrounds with supporting side walls 3013 and forms a lens support (not label), and also is provided with some latch part 3014 that are used for fixing described lens 300 on described supporting side walls 3013; When described lens 300 were fixed in described lens carrier 301, described holding part 3001 lower surfaces were supported on the described lens support, and described latch part 3014 interlocks with described holding part 3001 upper surfaces and holds.
Described reflection unit 4 is provided with one and is the diapire 40 of spirogyrate arc surfaced and extends four sidewalls 41 that are provided with by diapire 40 convex direction outside diapire 40, described spirogyrate arc surfaced diapire 40 is provided with some holes 400, the inwall 42 of described reflection unit 4 (comprising diapire 40 and sidewall 41) surface is provided with one deck reflective membrane, and the surface of described reflex reflector inwall 42 is contoured diffuse surface, such as (not the drawing among the figure) such as pit, projection or ripples that be formed with rule or irregular different shape on the surface.
Light-emitting plate 6 is a light-permeable plate, and it can also can be common plate glass for playing the lens of convergence or disperse function.For better waterproof, a waterproof grommet 5 is installed also between light-emitting plate 6 and housing 1.
Physical circuit below in conjunction with illuminating module in the present embodiment is further described the utility model.
See also Fig. 4, described pulse width control circuit mainly is to drive the pulse output that FET MOSFET obtains a pulsewidth wider range by timer 555.Between the grid of timer 555 output OUT and FET MOSFET, be in series with a resistance R 3, play the effect of restriction size of current.The dutycycle of timer 555 output pulse widths is adjusted by a control module, this control module comprises potentiometer RP, diode VD1 and VD2, resistance R 2, capacitor C 2, described resistance R 2 one ends are connected with the common port of 555 timer pin VCC and pin R, and the pin D of the other end and 555 timers is connected.The positive pole of described diode VD1 is connected with resistance R 2, and the stiff end of negative pole and potentiometer RP is connected.Another stiff end of potentiometer RP is connected with diode VD1 positive pole, and the pin D of diode VD1 negative pole and 555 timers is connected.The pin TH of the sliding handle of potentiometer RP and timer 555 and the common port of TR are connected.The pin TH of timer 555 and the common port of TR also are connected to a capacitor C 2.Adjust the numerical value of potentiometer RP, change the charge and discharge time of C2, and then can change the dutycycle of 555 timer output pulse widths.Regulate the dutycycle of output pulse width, can change the electric current of illuminating module work, thereby realize control the luminous intensity of illuminating module.In order to make pulse-width modulation circuit stable more and accurate, also in parallel a Zener diode D and an electrochemical capacitor C1 in the circuit, the end of described Zener diode D and electrochemical capacitor C1 links to each other with the common port of the pin VCC of timer 555 and pin R, and the other end links to each other with power cathode.Described Zener diode D plays burning voltage, and described electrochemical capacitor C1 strobes.Series connection one resistance R 1 plays the effect of restriction size of current between timer 555 pin VCC and the positive source.For anti-interference, the pin VC of timer 555 also is connected to a capacitor C 3.The earth terminal GND ground connection of timer 555.Described illuminating module one end is connected with positive source, and the other end is connected with the colelctor electrode of FET MOSFET, and the emitter stage of FET MOSFET is connected with power cathode.
The above-mentioned method of adjusting the illuminating module luminous intensity by pulse width control circuit is just adjusted a kind of mode of illuminating module current strength size.Certainly, all illuminating module also can be adjusted the size of this illuminating module current strength by series resistance, and the parameter of concrete resistance can be set in residing position of entire lighting device and luminous intensity distribution demand according to this illuminating module.
Described in the present embodiment illuminating module has formed one 2 * 7 light emitting array, and certainly, the utility model is not limited to 2 * 7 light emitting array, and the ranks number of light emitting array should be provided with according to actual needs.
Key of the present utility model is by LED being carried out many modularity designs, make more flexibly and trickle to the adjustment of the luminous intensity of illuminating module, simultaneously LED is the configuration of spirogyrate arc surfaced towards the LED light direction, make the illuminating effect of LED lighting device be more prone to reach light distribution requirements, avoid the appearance of the ring of light or blackening, thereby improved the illuminating effect of LED lighting device effectively.
The LED lighting device especially refers to outdoor lighting devices such as LED street lamp, LED Projecting Lamp or LED Tunnel Lamp in the utility model.
More than describing is embodiment of the present utility model only, forgives and can understand, and under the prerequisite that does not depart from the utility model design, all should be included within the technical conceive of the present utility model simple modification of the present utility model and replacement.
Claims (10)
1. LED lighting device, comprise housing and some LED, described LED forms some LED illuminating module and is contained in the housing, each LED illuminating module is provided with at least two LEDs, described illuminating module is connected in parallel, it is characterized in that: described LED is the configuration of spirogyrate arc surfaced towards the LED light direction, described illuminating module forms a light emitting array, this light emitting array is respectively equipped with at least two illuminating module on each row and column, have the luminous intensity difference of two illuminating module in the described illuminating module at least.
2. LED lighting device as claimed in claim 1 is characterized in that: the lighting angle of described LED and the luminous intensity of illuminating module are according to the light distribution requirements setting.
3. LED lighting device as claimed in claim 2 is characterized in that: described light distribution requirements is bat shape luminous intensity distribution or circular luminous intensity distribution.
4. LED lighting device as claimed in claim 1 is characterized in that: the lighting angle difference that has two LEDs among the LED that is provided with on the described LED illuminating module at least.
5. as each described LED lighting device among the claim 1-4, it is characterized in that: the diapire of described housing is provided with a curved base, described LED is close to this curved base surface by circuit board and installs, and makes the LED on the circuit board be the configuration of spirogyrate arc surfaced along the curved base surface towards the LED light direction.
6. LED lighting device as claimed in claim 5 is characterized in that: described curved base has at least one to be circular arc in two orthogonal cross sections.
7. LED lighting device as claimed in claim 5 is characterized in that: described curved base is one-body molded and form or separately moulding by housing, and described housing is made by the good material of heat conductivility.
8. LED lighting device as claimed in claim 1 is characterized in that: described LED lighting device can be LED street lamp, LED Projecting Lamp or LED Tunnel Lamp.
9. LED lighting device as claimed in claim 1 is characterized in that: the luminous intensity of described each illuminating module is controlled by the series resistance circuit.
10. LED lighting device as claimed in claim 1 is characterized in that: the luminous intensity of described each illuminating module is controlled by pulse width control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200697567U CN201066094Y (en) | 2007-05-11 | 2007-05-11 | LED illumination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200697567U CN201066094Y (en) | 2007-05-11 | 2007-05-11 | LED illumination device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201066094Y true CN201066094Y (en) | 2008-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200697567U Expired - Fee Related CN201066094Y (en) | 2007-05-11 | 2007-05-11 | LED illumination device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201066094Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102144120A (en) * | 2008-07-02 | 2011-08-03 | 萨诺维亚能源科技股份有限公司 | Light unit with light output pattern synthesized from multiple light sources |
| CN102418884A (en) * | 2011-11-30 | 2012-04-18 | 林万炯 | Illumination lamp with uniform illuminance |
| CN102052572B (en) * | 2009-11-04 | 2012-04-25 | 海洋王照明科技股份有限公司 | Heat dissipation lamp |
-
2007
- 2007-05-11 CN CNU2007200697567U patent/CN201066094Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102144120A (en) * | 2008-07-02 | 2011-08-03 | 萨诺维亚能源科技股份有限公司 | Light unit with light output pattern synthesized from multiple light sources |
| US8635049B2 (en) | 2008-07-02 | 2014-01-21 | Evolucia, Inc. | Light unit with light output pattern synthesized from multiple light sources |
| US9470371B2 (en) | 2008-07-02 | 2016-10-18 | Evolucia, Inc. | Light unit with light output pattern synthesized from multiple light sources |
| CN102052572B (en) * | 2009-11-04 | 2012-04-25 | 海洋王照明科技股份有限公司 | Heat dissipation lamp |
| CN102418884A (en) * | 2011-11-30 | 2012-04-18 | 林万炯 | Illumination lamp with uniform illuminance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080528 Termination date: 20110511 |