CN201057419Y - LED road lamp and its lens - Google Patents
LED road lamp and its lens Download PDFInfo
- Publication number
- CN201057419Y CN201057419Y CNU2007201185509U CN200720118550U CN201057419Y CN 201057419 Y CN201057419 Y CN 201057419Y CN U2007201185509 U CNU2007201185509 U CN U2007201185509U CN 200720118550 U CN200720118550 U CN 200720118550U CN 201057419 Y CN201057419 Y CN 201057419Y
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- CN
- China
- Prior art keywords
- lens
- led
- radiator
- hole
- street lamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
Abstract
The utility model relates to a lens applied to a LED street lamp. The middle part of a fist side face of the lens is provided with a concave pit used for holding the LED inside and the wall surface of the concave pit forms an incident face; the middle part of a secondary side face is arc-shaped and convex and forms an exit facet with a shape of pillow; the fist side face of the lens is provided with a fully reflecting surface around the concave pit. The utility model also relates to a LED street lamp which comprises a frame and a lighting module arranged on the frame. The lighting module comprises a radiator, a base plate with a LED array, a PCB board with a through hole array and a lens hood with a lens array, wherein, the base plate is positioned at the lower surface of the radiator; the PCB board is arranged at the outer surface of the base plate and is connected with each LED electrode; the lens hood is arranged outside the PCB board; each LED is held inside the corresponding concave pit of the lens by passing through the through hole of the PCB board; the lens array is formed by permutation and combination of a plurality of the lens. The utility model is able to control the distribution of the light so as to cause a light spot show a shape of rectangle and ensures uniform illumination in an effective radiation region and no miscellaneous light outside the region.
Description
Technical field
The utility model relates to the LED lighting field, the lens of particularly a kind of LED street lamp and employing thereof.
Background technology
Traditional street illumination light fixture mainly adopts sodium vapor lamp, mercury lamp or Metal halogen lamp, and the power consumption of these lamps is big, and the life-span is short, and the maintenance cost height is unfavorable for environmental protection.Therefore, adopt the LED light fixture to substitute the revolution that conventional lamp has become lighting field.
The LED street lamp usually can be covered with lens in the LED outside so that collected light, but the hot spot of existing lens projects be a circle, and the luminous intensity between center and the periphery differs bigger; In addition, need to throw light on a large scale on certain direction for some, and need the occasion of throwing light among a small circle on other direction, for example road lighting requires range of exposures wide on the road bearing of trend, good illumination effect, and the angle demand is big; And on vertical road direction, do not need the illumination of wide region, otherwise, both wasted electric energy, also can cause light pollution to surrounding environment.But LED for existing this round lens, can only be by on the road bearing of trend, establishing light fixture more, hot spot by adjacent light fixture superposes and reaches the luminous intensity requirement, even like this, also be difficult to avoid the illuminating effect on " chop road ", the illumination height under the light fixture, other regional illumination is low, cause the road surface average illumination low and the uniformity is poor, the illumination of this bright dark inequality directly influences traffic safety.
The utility model content
Technical problem to be solved in the utility model is: the lens that provide a kind of LED street lamp to use, its spotlight effect is good, makes the LED street lamp can meet light distribution and the illumination and the energy-conservation requirement of road lighting.
Another technical problem to be solved of the utility model is: a kind of LED street lamp is provided, and its illuminance uniformity is good, and range of exposures is accurate, and free from glare is radiationless, thereby has energy-saving effect significantly.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: the lens that a kind of LED street lamp is used comprise the plane of incidence and exit facet.The middle part, first side of described lens is provided with one and supplies LED to be installed on its interior pit, and the hole wall of pit constitutes the described plane of incidence; Middle part, lens second side arc protrudes the exit facet that is pillow-like; And lens first side is provided with a circle with the fully reflecting surface of light reflection to exit facet around pit.
Preferably, described pit is a kind of in the following shape: semicircle sphere, cylindrical, end face cylindrical, that end face is concaved circular cambered surface are the cylindrical of convex arc surface.
Preferably, described lens are made by transparent material, and transparent material is PC or PMMA.
The utility model also provides following technical scheme in addition: a kind of LED street lamp, comprise framework, at least one is installed on the lighting module on the framework, described lighting module comprises radiator, be provided with the substrate of led array, be provided with the pcb board of via-hole array and be provided with the lens cap of lens arra.Described substrate is attached at the radiator lower surface by means of the heat conductive insulating pad; Pcb board is installed in outer surface of substrate and is connected with each LED electrode on the substrate, and lens cap is located at the pcb board outside, and each LED of substrate passes the through hole on the pcb board and is placed in the corresponding lens pit; The middle part, first side of each lens of described lens arra is provided with for LED and is installed on its interior pit, the wall surface of the hole of pit constitutes the plane of incidence, middle part, described lens second side cambered surface is protruded and is formed the exit facet that is pillow-like, and lens first side is provided with a circle with the fully reflecting surface of light reflection to exit facet around pit.
Preferably, described radiator is provided with some radiating fins, and the radiator bottom surface is provided with groove, and the substrate that some LED are housed is installed on bottom portion of groove by means of the heat conductive insulating pad, and pcb board is installed in outer surface of substrate, and lens cap is installed on the outside of pcb board.
Preferably, described lens cap periphery is provided with a frame that has a through hole, passes described through hole and is locked on the radiator and lens cap is installed on the radiator by means of screw.
Preferably, also be provided with sealing ring between the frame of described lens cap and the radiator, also establish some reference columns on the lens cap frame, corresponding being provided with on the sealing ring for the locating hole of reference column insertion with the positioning and fixing sealing ring.
Preferably, described framework separates at least one installing hole by the edge of some criss-cross arrangements, a lighting module is installed in each installing hole, the both sides of the radiator of described lighting module are provided with the installation edge with screw hole, and correspondence is provided with screw on the edge around the installing hole, the main part of lighting module is placed in the installing hole, and the installation edge of radiator is taken on edge, is locked in screw hole and the screw by means of screw and lighting module is fixed on the edge.
By adopting technique scheme, the utlity model has following beneficial effect: after adopting this lens, it is wing that its distribution curve flux is bat, and each section is different incomplete same because of need, make hot spot rectangular and can rationally control distribution of light, and light extraction efficiency is greater than 75% in effective irradiation area, total light transmittance is greater than 90%, farthest reduced the loss of light, the light that light source is sent is fully utilized; In addition, illumination is very even in effective irradiation area.The hot spot edge clear, effectively irradiation area does not almost have veiling glare outward, does not have bad dazzle, can not cause light pollution; Can be widely used in road lighting, advertisement light projector etc. has the lighting field of specific (special) requirements to the field of illumination, is the illuminating product of a kind of green, energy-saving and environmental protection.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is the lens stereogram that the utility model LED street lamp is used.
Fig. 2 is the lens vertical view that the utility model LED street lamp is used.
Fig. 3 is the cutaway view along A-A line among Fig. 2.
Fig. 4 is the second embodiment cutaway view of the lens used of the utility model LED street lamp.
Fig. 5 is the 3rd an embodiment cutaway view of the lens used of the utility model LED street lamp.
Fig. 6 is the 4th an embodiment cutaway view of the lens used of the utility model LED street lamp.
Fig. 7 is the utility model LED street lamp three-dimensional structure diagram.
Fig. 8 is the STRUCTURE DECOMPOSITION figure of a lighting module of the utility model LED street lamp.
Fig. 9 is the stereogram of the lens cap of the utility model LED street lamp.
Figure 10 is the vertical view of the lens cap of the utility model LED street lamp.
Figure 11 is the cutaway view along C-C line among Figure 10.
The specific embodiment
As shown in Figure 1 to Figure 3, the lens that the utility model provides a kind of LED street lamp to use, the middle part, first side of described lens is provided with a pit 10, can be installed on the circle centre position of pit 10 for a LED, and the hole wall of pit 10 promptly constitutes the plane of incidence 1 of lens; Middle part, described lens second side arc protrudes and forms the exit facet 2 that is pillow-like; So-called pillow-like promptly is the elongate body shape that two ends are cambered surface substantially, and two middle side parts of elongate body are recessed slightly to the inside, and the upper surface cambered surface is protruded, and, be provided with a circle with the fully reflecting surface 3 of light reflection around shrinkage pool 10 on first side of lens to exit facet 2.Described lens preferably adopt the extraordinary transparent material of light transmission to make, as PC or PMMA.
As shown in Figure 4, it is the second embodiment cutaway view of the lens used of the utility model LED street lamp, itself and lens shown in Figure 3 difference are: described pit is one cylindrical, the LED lamp can be installed near coal-mine centre, light from the ejaculation of cylindrical end face directly penetrates through lens exit facet 2 after reflecting, and penetrates from lens exit facet 2 after fully reflecting surface 3 total reflections from the light that cylindrical sides penetrates again.In addition, on columniform pit 10 bases of lens shown in Figure 4, also the end face of pit 10 can be designed to an arc surface, this arc surface can be recessed arc surface (the 3rd embodiment as shown in Figure 5) or be the arc surface of epirelief (the 4th embodiment as shown in Figure 6).These difform pit designs, the different photodistributed LED that can arrange in pairs or groups can't exert an influence to spotlight effect.
The hot spot that has adopted the LED light fixture of this lens to form is rectangular basically, and can effectively satisfy the lighting demand that has different occasions for lighting requirement on two vertical axis, for example road lighting.Adopted the central authorities of hot spot of LED light fixture of this lens less with all around differences of illumination intensities, promptly uniformity of illuminance is good.
As Fig. 7～shown in Figure 11, the utility model also provides a kind of LED light fixture, comprise framework 4, at least one is installed on the lighting module 5 on the framework 4, described lighting module 5 comprises radiator 6, be provided with the substrate 7 of led array, pcb board 8 and be provided with the lens cap 9 of lens arra.
Described substrate 7 is attached at radiator 6 lower surfaces by means of heat conductive insulating pad 71; Pcb board 8 is installed in the side that substrate 7 is provided with led array, and pcb board 8 is provided with the via-hole array that is rearranged by several through holes 80, and each through hole 80 is corresponding one by one with each LED of led array, passes for each LED70 in the led array.Circuit on the pcb board 8 is connected with each LED electrode; The structure and the earlier figures 1 of the single lens 90 in the lens arra of described lens cap 9 are identical to lens arrangement shown in Figure 4, no longer are repeated in this description at this.
Described radiator 6 is provided with some radiating fins 60, and radiator 6 bottom surfaces are provided with groove 62, substrate 7 is installed on groove 62 bottoms by means of heat conductive insulating pad 71, pcb board 8 is installed in substrate 7 outer surfaces, and lens cap 9 is installed on the outside of pcb board 8, and each LED 70 correspondence on the substrate 7 are passed the through hole 80 on the pcb board 8 and are positioned at the circle centre position of the pit of corresponding lens 90 on the lens cap 9.
Described lens cap 9 peripheries are provided with a frame 92 that has a through hole 920, pass described through hole 920 and are locked on the radiator 6 and lens cap 9 is installed on the radiator 6 by means of screw 93.Also be provided with sealing ring 94 between the frame 92 of described lens cap 9 and the radiator 6, thereby can play good water-tight, dustproof effect, with protection internal circuit and LED.And, also establish some reference columns 96 on described lens cap 9 frames 92, the corresponding locating hole 940 that inserts with positioning and fixing sealing ring 94 for reference column 96 that is provided with on the sealing ring 94.
Described framework 4 separates into several installing holes 42 by the edge 40 of some criss-cross arrangements, in each installing hole 42 lighting module 5 is installed.Embodiment as shown in Figure 7, framework 4 promptly are separated into 6 installing holes 42, and a lighting module 5 is installed in each installing hole 42, and each lighting module all works alone.This design makes the maintenance in installation and later stage all become more convenient, and when wherein some lighting modules 5 damage, only need to change this lighting module 5, and do not need whole light fixture is more changed, make maintenance work become very light, also saved a large amount of maintenance costs, and when changing, other lighting modules 5 work as usual throw light on, and do not influence the road lighting function.
The both sides of the radiator 6 of described lighting module 5 are provided with installs edge 64, which is provided with screw hole 640, and correspondence is provided with screw 400 on the edge 40 around the installing hole 42 of framework 4.During assembling, the main part of lighting module 5 is placed in the installing hole 42, and the installation edge 64 of radiator 6 is taken on edge 40, is locked in by means of screw 45 in the screw 400 on the edge 40 of screw hole 640 on the installation edge 64 of radiator 6 and framework 4 and lighting module 5 is fixed on the edge 40.
Because street lamp has certain angle of inclination when installing, be generally 0～15 degree, at this moment, it is incident upon that hot spot on the road surface is subjected to light fixture inclination installation influence and slightly in echelon.Though the light spot shape of the utility model LED street lamp on the road surface is subjected to light fixture inclination installation influence, its Illumination Distribution is unaffected substantially, and other regional Illumination Distribution of zone under light fixture and hot spot are still comparatively even.In addition, a side illumination also meets the requirement that fast traffic lane illumination in the road lighting is higher than slow lane a little more than other zone under the light fixture.
Claims (10)
1. the lens that the LED street lamp is used comprise the plane of incidence and exit facet, it is characterized in that: the middle part, first side of described lens is provided with one and supplies LED to be installed on its interior pit, and the hole wall of pit constitutes the described plane of incidence; Middle part, lens second side arc protrudes and forms the exit facet that is pillow-like; And lens first side is provided with a circle with the fully reflecting surface of light reflection to exit facet around pit.
2. the lens that LED street lamp as claimed in claim 1 is used is characterized in that: described pit is a kind of in the following shape: semicircle sphere, cylindrical, end face cylindrical, that end face is concaved circular cambered surface are the cylindrical of convex arc surface.
3. the lens that LED street lamp as claimed in claim 1 is used is characterized in that: described lens are made by transparent material, and transparent material is PC or PMMA.
4. LED street lamp, comprise framework, at least one is installed on the lighting module on the framework, described lighting module comprises radiator, be provided with the substrate of led array, be provided with the pcb board of via-hole array and be provided with the lens cap of lens arra, described substrate is attached at the radiator lower surface by means of the heat conductive insulating pad, pcb board is installed in outer surface of substrate and is connected with each LED electrode on the substrate, lens cap is located at the pcb board outside, each LED of substrate passes through hole corresponding on the pcb board and is placed in the corresponding lens pit, it is characterized in that: the middle part, first side of each lens of described lens arra is provided with for LED and is installed on its interior pit, the wall surface of the hole of pit constitutes the plane of incidence, middle part, described lens second side cambered surface is protruded and is formed the exit facet that is pillow-like, and lens first side is provided with a circle with the fully reflecting surface of light reflection to exit facet around pit.
5. LED street lamp as claimed in claim 4, it is characterized in that: described radiator is provided with some radiating fins, and the radiator bottom surface is provided with groove, and substrate is installed on bottom portion of groove by means of the heat conductive insulating pad, pcb board is installed in outer surface of substrate, and lens cap is installed on the outside of pcb board.
6. as claim 4 or 5 described LED street lamps, it is characterized in that: described lens cap periphery is provided with a frame that has a through hole, passes described through hole and is locked on the radiator and lens cap is installed on the radiator by means of screw.
7. LED street lamp as claimed in claim 6, it is characterized in that: also be provided with sealing ring between the frame of described lens cap and the radiator, also establish some reference columns on the lens cap frame, corresponding being provided with on the sealing ring for the locating hole of reference column insertion with the positioning and fixing sealing ring.
8. as claim 4 or 5 described LED street lamps, it is characterized in that: described framework separates at least one installing hole by the edge of some criss-cross arrangements, a lighting module is installed in each installing hole, the both sides of the radiator of described lighting module are provided with the installation edge with screw hole, and correspondence is provided with screw on the edge around the installing hole, the main part of lighting module is placed in the installing hole, and the installation edge of radiator is taken on edge, is locked in screw hole and the screw by means of screw and lighting module is fixed on the edge.
9. LED street lamp as claimed in claim 4 is characterized in that: described pit be shaped as a kind of in the following shape: semicircle sphere, cylindrical, end face cylindrical, that end face is concaved circular cambered surface are the cylindrical of convex arc surface.
10. LED street lamp as claimed in claim 4 is characterized in that: described lens cap is made by transparent material, and transparent material is PC or PMMA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201185509U CN201057419Y (en) | 2007-02-12 | 2007-02-12 | LED road lamp and its lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201185509U CN201057419Y (en) | 2007-02-12 | 2007-02-12 | LED road lamp and its lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201057419Y true CN201057419Y (en) | 2008-05-07 |
Family
ID=39426262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201185509U Expired - Fee Related CN201057419Y (en) | 2007-02-12 | 2007-02-12 | LED road lamp and its lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201057419Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009015605A1 (en) * | 2007-07-30 | 2009-02-05 | Shenzhen Bang-Bell Electronics Co., Ltd | Led tunnel lamp |
| WO2010078699A1 (en) * | 2008-12-30 | 2010-07-15 | She Jie | Led source module and lamp |
| CN101619833B (en) * | 2009-08-07 | 2011-05-25 | 郭奇波 | Light chopping lens |
| CN102095110A (en) * | 2011-02-23 | 2011-06-15 | 广州莱迪光电股份有限公司 | High-power light emitting diode (LED) fluorescent lamp |
| CN103453338A (en) * | 2012-05-31 | 2013-12-18 | 台达电子工业股份有限公司 | Lens element used for light source module and illuminating lamp |
| CN106062465A (en) * | 2014-03-04 | 2016-10-26 | 三菱电机株式会社 | Light source apparatus and lighting apparatus |
| CN111810874A (en) * | 2020-07-31 | 2020-10-23 | 特能热交换科技（中山）有限公司 | Outdoor projection lamp |
-
2007
- 2007-02-12 CN CNU2007201185509U patent/CN201057419Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009015605A1 (en) * | 2007-07-30 | 2009-02-05 | Shenzhen Bang-Bell Electronics Co., Ltd | Led tunnel lamp |
| WO2010078699A1 (en) * | 2008-12-30 | 2010-07-15 | She Jie | Led source module and lamp |
| CN101619833B (en) * | 2009-08-07 | 2011-05-25 | 郭奇波 | Light chopping lens |
| CN102095110A (en) * | 2011-02-23 | 2011-06-15 | 广州莱迪光电股份有限公司 | High-power light emitting diode (LED) fluorescent lamp |
| CN103453338A (en) * | 2012-05-31 | 2013-12-18 | 台达电子工业股份有限公司 | Lens element used for light source module and illuminating lamp |
| CN106062465A (en) * | 2014-03-04 | 2016-10-26 | 三菱电机株式会社 | Light source apparatus and lighting apparatus |
| CN106062465B (en) * | 2014-03-04 | 2018-04-17 | 三菱电机株式会社 | Light supply apparatus and lighting device |
| CN111810874A (en) * | 2020-07-31 | 2020-10-23 | 特能热交换科技（中山）有限公司 | Outdoor projection lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN BANG BEIER ELECTRONICS CO. Free format text: FORMER OWNER: WU JUAN Effective date: 20080801 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080801 Address after: Shenzhen City, Guangdong Province, Baoan District Guanlan town south ring concept gold to science and Technology Park, zip code: 518110 Patentee after: Shenzhen Bang-Bell Electronics Co., Ltd. Address before: Guangdong Province, Shenzhen city Baoan District West Township nine Wai ilicifolius Zhu Jiao Cun day Fuan Industrial Park No. 4 5 floor, zip code: 518102 Patentee before: Wu Juan |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080507 |