CN105180121A - LED street lamp - Google Patents

LED street lamp Download PDF

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Publication number
CN105180121A
CN105180121A CN201510596569.3A CN201510596569A CN105180121A CN 105180121 A CN105180121 A CN 105180121A CN 201510596569 A CN201510596569 A CN 201510596569A CN 105180121 A CN105180121 A CN 105180121A
Authority
CN
China
Prior art keywords
upper shell
fin
street lamp
led street
lower house
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.)
Pending
Application number
CN201510596569.3A
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Chinese (zh)
Inventor
何伟锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Jianheng Industry Co Ltd
Original Assignee
Jiangsu Jianheng Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Jianheng Industry Co Ltd filed Critical Jiangsu Jianheng Industry Co Ltd
Priority to CN201510596569.3A priority Critical patent/CN105180121A/en
Publication of CN105180121A publication Critical patent/CN105180121A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads

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  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The invention discloses an LED street lamp. The LED street lamp comprises a lamp pole, and a lamp pole front end is arranged on the lamp pole. The LED street lamp further comprises an LED light-emitting module, a radiating mechanism, a fixing plate, an upper shell and a lower shell; the fixing plate comprises a fixing frame and a clamping mechanism; the upper shell and the lower shell are buckled to the fixing frame, and an installation cavity is formed between the upper shell and the lower shell; the clamping mechanism is fixedly connected with the lamp pole front end; the LED light-emitting module is arrange din the installation cavity; an optical covering plate is arranged at the position, located at a light outlet of the LED light-emitting module, of the lower shell; the radiating mechanism comprises a heat conduction plate, radiating sheets and a sunshade plate; the heat conduction plate is tightly connected with the back face of the LED light-emitting module and arranged in the installation cavity; the radiating sheets are fixedly connected with the heat conduction plate; a plurality of hole ways matched with the radiating sheets are arranged at the top of the upper shell; the radiating sheets penetrate the hole ways of the upper shell to upwards extend out of the upper shell; the sunshade plate is arranged at the tops of the radiating sheets; and air guide plates are arranged at the two ends of the sunshade plate. The LED street lamp is good in radiating effect.

Description

A kind of LED street lamp
Technical field
The present invention relates to field of semiconductor illumination, particularly relate to a kind of LED street lamp.
Background technology
LED has the feature of life-span length, electric power saving, is applied to lighting field more and more widely.
Chinese invention patent document CN101101103A discloses a kind of LED street lamp on January 9th, 2008, and comprise lamp body and LED bulb, lamp body comprises head section, stage casing, rear, and head section is docked with stage casing and arranged, and the other end in stage casing docks with rear and arranges; Be provided with sealing gasket between head section and stage casing, head section is connected with stage casing by securing member; Be provided with sealing gasket between rear and stage casing, rear is connected with stage casing by securing member; Stage casing is a kind of section bar, and along profile length direction, diverse location has identical cross section.Chinese invention patent document CN101101102A also discloses a kind of LED street lamp on January 9th, 2008, comprise lamp body and LED bulb, lamp body comprises head section, stage casing, rear, head section is docked with stage casing and is arranged, the other end in stage casing docks with rear and arranges, be provided with sealing gasket between head section and stage casing, head section is connected with stage casing by securing member; Be provided with sealing gasket between rear and stage casing, rear is connected with stage casing by securing member; Stage casing is a segment type material, and along profile length direction, diverse location has identical cross section, and section bar has substrate, and substrate is that the flat board of " eight " set up of character patt ern and the connecting plate of connection two flat boards are formed by two pieces.Chinese invention patent document CN101101107A also discloses a kind of LED street lamp on January 9th, 2008, comprise lamp body and LED bulb, lamp body has obverse and reverse, the front of lamp body has a cavity defined by side plate and bottom surface, the reverse side of lamp body is provided with radiating fin, and one end of lamp body reverse side is also provided with light pole bindiny mechanism; Have a plane at the bottom of cavity, be also provided with a dividing plate in cavity, dividing plate is near the one end at light pole bindiny mechanism place, and cavity is defined as two parts by dividing plate, near light pole bindiny mechanism secondary cavity at one end and be positioned at the main cavity of dividing plate opposite side; The gap making main cavity and secondary cavity intercommunication is provided with between dividing plate two end and cavity wall.Above-mentioned three kinds of LED street lamp represent the main flow of LED illumination technology on the market, comprise tunnel lamp and street lamp, applying in process, the weak point of mainstream technology is also clearly: prior art is provided with separately lampshade and secondary optics processing unit on the one hand, as secondary optical lens or reflector, complex structure and the impact of light fixture are directly dispelled the heat; In prior art, radiating fin is arranged on lampshade inside on the other hand, then on lampshade, offers multiple passage, and design air circulation like this is not smooth, causes heat to gather in lampshade, reduces the LED luminous component life-span, increase cost.
Summary of the invention
Problem to be solved by this invention is, for above-mentioned shortcoming of the prior art, provides a kind of LED street lamp of good heat dissipation effect.
For solving the problem, the scheme that the present invention adopts is as follows:
A kind of LED street lamp, comprise lamp stand, described lamp stand has a lamp stand front end, it is characterized in that, also comprises LED illuminating module, cooling mechanism, fixed head, upper shell and lower house, and described fixed head comprises fixed frame and clamping mechanism; Described upper shell and lower house are fastened on described fixed frame, and between upper shell and lower house, form installation cavity; Described upper shell is fixedly connected with lamp stand front end by the clamping mechanism on fixed head with lower house; Described LED illuminating module is arranged in described installation cavity; Described lower house is positioned at LED illuminating module light-emitting window and goes out to be provided with optics cover plate; Described cooling mechanism comprises heat-conducting plate, fin, sunshading board composition; Described heat-conducting plate and LED illuminating module back side compact siro spinning technology, be arranged in described installation cavity; Described fin is fixedly connected with heat-conducting plate; Described upper shell top is provided with multiple duct of mating with fin; Described fin extends upwardly to beyond upper shell through the duct of upper shell; Described sunshading board is arranged on fin top; Described sunshading board two ends are provided with wind deflector.
China is the country that a wind-resources enriches, so the present invention adopts natural wind to lower the temperature to fin, fin is stretched out upper shell from the duct of upper shell, receives the cooling of natural wind.Due to the good conductor that fin is heat, directly exposing is to cause heatsink temperature sharply to rise under the sun, therefore arranges a sunshading board at fin top, in order to keep the sun off, prevents fin from heating up because irradiating sunlight.And wind deflector is set at the two ends of sunshading board, natural wind is guided the fin entered between sunshading board and upper shell, increase the air quantity flowing to fin, accelerate fin heat radiation.
Further, according to LED street lamp of the present invention, described LED street lamp also comprises silica gel sealing ring; Described silica gel sealing ring is between LED illuminating module and lower house; The inner seat corresponding to silica gel sealing ring of described lower house is provided with a circle press strip.
Between LED illuminating module and lower house, set up silica gel sealing ring, in order to prevent dust from entering, make to keep high level of cleanliness between illuminating module and optics cover plate, it also avoid the injury of dust to LED illuminating module simultaneously, postpone the service life of LED street lamp.
Further, according to LED street lamp of the present invention, described fin becomes array arrangement, and is provided with air flow clearance.
Fin adopts multiple-piece array arrangement, and increase area of dissipation, being provided with of air flow clearance helps air circulation, reduces the resistance of wind, accelerates heat radiation, improves radiating efficiency.
Further, according to LED street lamp of the present invention, described LED street lamp is fixedly connected with lamp stand front end by the clamping mechanism on fixed head; There is an angle a in described fixed head and horizontal direction, described angle a is more than or equal to 5 degree and is less than or equal to 30 degree.
There is certain angle by being arranged by fixed head with horizontal direction, even calm when, hot-air also can be utilized to move up, and principle that cold air moves down produces air flowing, increases the radiating rate of fin.And LED street lamp is arranged to the elevation angle of certain angle, be then more be conducive to hot-air to rise, accelerate air flowing, accelerate fin heat radiation.
Further, according to LED street lamp of the present invention, described wind deflector is an arc, and is bent upwards 30 to 45 degree.
Wind deflector is arranged to arc by Jin Guo our company research staff many experiments, and is bent upwards 30 to 45 when spending, and radiating effect is best.
Further, according to LED street lamp of the present invention, described sunshading board is that heat-barrier material is made.
The object arranging sunshading board prevents fin from heating up because sunlight irradiates, so sunshading board can not be the good conductor of heat, therefore the present invention is arranged to heat-barrier material, prevents fin because of sunshading board heat transfer intensification.
Technique effect of the present invention is as follows: China is the country that a wind-resources enriches, so the present invention adopts natural wind to lower the temperature to fin, fin is stretched out upper shell from the duct of upper shell, receives the cooling of natural wind.Due to the good conductor that fin is heat, directly exposing is to cause heatsink temperature sharply to rise under the sun, therefore arranges a sunshading board at fin top, in order to keep the sun off, prevents fin from heating up because irradiating sunlight.And wind deflector is set at the two ends of sunshading board, natural wind is guided the fin entered between sunshading board and upper shell, increase the air quantity flowing to fin, accelerate fin heat radiation.
Accompanying drawing explanation
Fig. 1 is LED street lamp schematic diagram.
Fig. 2 is LED street lamp decomposition texture schematic diagram.
Fig. 3 is fin and upper shell counter structure schematic diagram.
Fig. 4 is LED street lamp cut-away section structural representation.
Fig. 5 is radiation fin array arrangement schematic diagram.
Fig. 6 is that LED street lamp is horizontal by angle a schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further details.
Embodiment 1: a kind of LED street lamp, comprises lamp stand 1, and described lamp stand has a lamp stand front end 11, also comprises LED illuminating module 2, cooling mechanism 3, fixed head 4, upper shell 5 and lower house 6, and described fixed head 4 comprises fixed frame 41 and clamping mechanism 42; Described upper shell 5 and lower house 6 are fastened on described fixed frame 41, and between upper shell 5 and lower house 6, form installation cavity; Described upper shell 5 is fixedly connected with lamp stand front end 11 by the clamping mechanism 42 on fixed head 4 with lower house 6; Described LED illuminating module 2 is arranged in described installation cavity; Described lower house 6 is positioned at LED illuminating module 2 light-emitting window and goes out to be provided with optics cover plate 21; Described cooling mechanism 3 comprises heat-conducting plate 31, fin 32, sunshading board 33 form; Described heat-conducting plate 31 and LED illuminating module 2 back side compact siro spinning technology, be arranged in described installation cavity; Described fin 32 is fixedly connected with heat-conducting plate 31; Described upper shell 5 top is provided with multiple duct 51 of mating with fin 32; Described fin 32 extends upwardly to beyond upper shell 5 through the duct 51 of upper shell 5; Described sunshading board 33 is arranged on fin 32 top, and is connected with upper shell by joint pin; Described sunshading board 33 two ends are provided with wind deflector 331.
Embodiment 2: a kind of LED street lamp, comprises lamp stand 1, and described lamp stand has a lamp stand front end 11, also comprises LED illuminating module 2, cooling mechanism 3, fixed head 4, upper shell 5 and lower house 6, and described fixed head 4 comprises fixed frame 41 and clamping mechanism 42; Described upper shell 5 and lower house 6 are fastened on described fixed frame 41, and between upper shell 5 and lower house 6, form installation cavity; Described upper shell 5 is fixedly connected with lamp stand front end 11 by the clamping mechanism 42 on fixed head 4 with lower house 6; Described LED illuminating module 2 is arranged in described installation cavity; Described lower house 6 is positioned at LED illuminating module 2 light-emitting window and goes out to be provided with optics cover plate 21; Described cooling mechanism 3 comprises heat-conducting plate 31, fin 32, sunshading board 33 form; Described heat-conducting plate 31 and LED illuminating module 2 back side compact siro spinning technology, be arranged in described installation cavity; Described fin 32 is fixedly connected with heat-conducting plate 31; Described upper shell 5 top is provided with multiple duct 51 of mating with fin 32; Described fin 32 extends upwardly to beyond upper shell 5 through the duct 51 of upper shell 5; Described sunshading board 33 is arranged on fin 32 top, and is connected with upper shell by joint pin; Described sunshading board 33 two ends are provided with wind deflector 331, and described LED street lamp also comprises silica gel sealing ring 7; Described silica gel sealing ring 7 is between LED illuminating module 2 and lower house 6; The inner seat corresponding to silica gel sealing ring 7 of described lower house 6 is provided with a circle press strip 61.
Embodiment 3: a kind of LED street lamp, comprises lamp stand 1, and described lamp stand has a lamp stand front end 11, also comprises LED illuminating module 2, cooling mechanism 3, fixed head 4, upper shell 5 and lower house 6, and described fixed head 4 comprises fixed frame 41 and clamping mechanism 42; Described upper shell 5 and lower house 6 are fastened on described fixed frame 41, and between upper shell 5 and lower house 6, form installation cavity; Described upper shell 5 is fixedly connected with lamp stand front end 11 by the clamping mechanism 42 on fixed head 4 with lower house 6; Described LED illuminating module 2 is arranged in described installation cavity; Described lower house 6 is positioned at LED illuminating module 2 light-emitting window and goes out to be provided with optics cover plate 21; Described cooling mechanism 3 comprises heat-conducting plate 31, fin 32, sunshading board 33 form; Described heat-conducting plate 31 and LED illuminating module 2 back side compact siro spinning technology, be arranged in described installation cavity; Described fin 32 is fixedly connected with heat-conducting plate 31; Described upper shell 5 top is provided with multiple duct 51 of mating with fin 32; Described fin 32 extends upwardly to beyond upper shell 5 through the duct 51 of upper shell 5; Described sunshading board 33 is arranged on fin 32 top, and is connected with upper shell by joint pin; Described sunshading board 33 two ends are provided with wind deflector 331, described fin 32 one-tenth array arrangement, and are provided with air flow clearance 321.
Embodiment 4: a kind of LED street lamp, comprises lamp stand 1, and described lamp stand has a lamp stand front end 11, also comprises LED illuminating module 2, cooling mechanism 3, fixed head 4, upper shell 5 and lower house 6, and described fixed head 4 comprises fixed frame 41 and clamping mechanism 42; Described upper shell 5 and lower house 6 are fastened on described fixed frame 41, and between upper shell 5 and lower house 6, form installation cavity; Described upper shell 5 is fixedly connected with lamp stand front end 11 by the clamping mechanism 42 on fixed head 4 with lower house 6; Described LED illuminating module 2 is arranged in described installation cavity; Described lower house 6 is positioned at LED illuminating module 2 light-emitting window and goes out to be provided with optics cover plate 21; Described cooling mechanism 3 comprises heat-conducting plate 31, fin 32, sunshading board 33 form; Described heat-conducting plate 31 and LED illuminating module 2 back side compact siro spinning technology, be arranged in described installation cavity; Described fin 32 is fixedly connected with heat-conducting plate 31; Described upper shell 5 top is provided with multiple duct 51 of mating with fin 32; Described fin 32 extends upwardly to beyond upper shell 5 through the duct 51 of upper shell 5; Described sunshading board 33 is arranged on fin 32 top, and is connected with upper shell by joint pin; Described sunshading board 33 two ends are provided with wind deflector 331, and described LED street lamp is fixedly connected with lamp stand front end 11 by the clamping mechanism 42 on fixed head 4; There is an angle a with horizontal direction in described fixed head 4, described angle a is more than or equal to 5 degree and is less than or equal to 30 degree.
Embodiment 5: a kind of LED street lamp, comprises lamp stand 1, and described lamp stand has a lamp stand front end 11, also comprises LED illuminating module 2, cooling mechanism 3, fixed head 4, upper shell 5 and lower house 6, and described fixed head 4 comprises fixed frame 41 and clamping mechanism 42; Described upper shell 5 and lower house 6 are fastened on described fixed frame 41, and between upper shell 5 and lower house 6, form installation cavity; Described upper shell 5 is fixedly connected with lamp stand front end 11 by the clamping mechanism 42 on fixed head 4 with lower house 6; Described LED illuminating module 2 is arranged in described installation cavity; Described lower house 6 is positioned at LED illuminating module 2 light-emitting window and goes out to be provided with optics cover plate 21; Described cooling mechanism 3 comprises heat-conducting plate 31, fin 32, sunshading board 33 form; Described heat-conducting plate 31 and LED illuminating module 2 back side compact siro spinning technology, be arranged in described installation cavity; Described fin 32 is fixedly connected with heat-conducting plate 31; Described upper shell 5 top is provided with multiple duct 51 of mating with fin 32; Described fin 32 extends upwardly to beyond upper shell 5 through the duct 51 of upper shell 5; Described sunshading board 33 is arranged on fin 32 top, and is connected with upper shell by joint pin; Described sunshading board 33 two ends are provided with wind deflector 331, and described wind deflector is an arc, and are bent upwards 30 to 45 degree.
Embodiment 6: a kind of LED street lamp, comprises lamp stand 1, and described lamp stand has a lamp stand front end 11, also comprises LED illuminating module 2, cooling mechanism 3, fixed head 4, upper shell 5 and lower house 6, and described fixed head 4 comprises fixed frame 41 and clamping mechanism 42; Described upper shell 5 and lower house 6 are fastened on described fixed frame 41, and between upper shell 5 and lower house 6, form installation cavity; Described upper shell 5 is fixedly connected with lamp stand front end 11 by the clamping mechanism 42 on fixed head 4 with lower house 6; Described LED illuminating module 2 is arranged in described installation cavity; Described lower house 6 is positioned at LED illuminating module 2 light-emitting window and goes out to be provided with optics cover plate 21; Described cooling mechanism 3 comprises heat-conducting plate 31, fin 32, sunshading board 33 form; Described heat-conducting plate 31 and LED illuminating module 2 back side compact siro spinning technology, be arranged in described installation cavity; Described fin 32 is fixedly connected with heat-conducting plate 31; Described upper shell 5 top is provided with multiple duct 51 of mating with fin 32; Described fin 32 extends upwardly to beyond upper shell 5 through the duct 51 of upper shell 5; Described sunshading board 33 is arranged on fin 32 top, and is connected with upper shell by joint pin; Described sunshading board 33 two ends are provided with wind deflector 331, and described sunshading board is that heat-barrier material is made.

Claims (6)

1. a LED street lamp, comprise lamp stand (1), described lamp stand has a lamp stand front end (11), it is characterized in that, also comprise LED illuminating module (2), cooling mechanism (3), fixed head (4), upper shell (5) and lower house (6), described fixed head (4) comprises fixed frame (41) and clamping mechanism (42); Described upper shell (5) and lower house (6) are fastened on described fixed frame (41), and between upper shell (5) and lower house (6), form installation cavity; Described upper shell (5) is fixedly connected with lamp stand front end (11) by the clamping mechanism (42) on fixed head (4) with lower house (6); Described LED illuminating module (2) is arranged in described installation cavity; Described lower house (6) is positioned at LED illuminating module (2) light-emitting window and goes out to be provided with optics cover plate (21); Described cooling mechanism (3) comprises heat-conducting plate (31), fin (32), sunshading board (33) composition; Described heat-conducting plate (31) and LED illuminating module (2) back side compact siro spinning technology, be arranged in described installation cavity; Described fin (32) is fixedly connected with heat-conducting plate (31); Described upper shell (5) top is provided with multiple duct (51) of mating with fin (32); Described fin (32) extends upwardly to beyond upper shell (5) through the duct (51) of upper shell (5); Described sunshading board (33) is arranged on fin (32) top, and is connected with upper shell by joint pin; Described sunshading board (33) two ends are provided with wind deflector (331).
2. LED street lamp according to claim 1, it is characterized in that, described LED street lamp also comprises silica gel sealing ring (7); Described silica gel sealing ring (7) is positioned between LED illuminating module (2) and lower house (6); Described lower house (6) inside is provided with a circle press strip (61) with silica gel sealing ring (7) corresponding seat.
3. LED street lamp according to claim 1, is characterized in that, described fin (32) becomes array arrangement, and is provided with air flow clearance (321).
4. LED street lamp according to claim 1, is characterized in that, described LED street lamp is fixedly connected with lamp stand front end (11) by the clamping mechanism (42) on fixed head (4); There is an angle a in described fixed head (4) and horizontal direction, described angle a is more than or equal to 5 degree and is less than or equal to 30 degree.
5. LED street lamp according to claim 1, it is characterized in that, described wind deflector is an arc, and is bent upwards 30 to 45 degree.
6. LED street lamp according to claim 1, it is characterized in that, described sunshading board is that heat-barrier material is made.
CN201510596569.3A 2015-09-18 2015-09-18 LED street lamp Pending CN105180121A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510596569.3A CN105180121A (en) 2015-09-18 2015-09-18 LED street lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510596569.3A CN105180121A (en) 2015-09-18 2015-09-18 LED street lamp

Publications (1)

Publication Number Publication Date
CN105180121A true CN105180121A (en) 2015-12-23

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ID=54902394

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510596569.3A Pending CN105180121A (en) 2015-09-18 2015-09-18 LED street lamp

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CN (1) CN105180121A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109343297A (en) * 2018-10-25 2019-02-15 中国科学院西安光学精密机械研究所 A passive thermally controlled lunar surface camera and imaging method
CN109855015A (en) * 2019-03-04 2019-06-07 深圳市超频三科技股份有限公司 A kind of street lamp
CN111928171A (en) * 2020-08-19 2020-11-13 扬州光烁照明有限公司 LED street lamp with waterproof function
CN112503492A (en) * 2020-12-15 2021-03-16 江西众能光电科技有限公司 Heat insulation device for LED

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101059237A (en) * 2007-06-03 2007-10-24 诸建平 LED lamp self-heat irradiation device
CN101469819A (en) * 2007-12-27 2009-07-01 富准精密工业(深圳)有限公司 LED lamp
CN202403136U (en) * 2012-01-06 2012-08-29 天津津港宇达电子科技有限公司 Street lamp
CN104235697A (en) * 2014-09-28 2014-12-24 宁波金羽桥照明科技有限公司 Heat-radiation type LED (Light Emitting Diode) street lamp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101059237A (en) * 2007-06-03 2007-10-24 诸建平 LED lamp self-heat irradiation device
CN101469819A (en) * 2007-12-27 2009-07-01 富准精密工业(深圳)有限公司 LED lamp
CN202403136U (en) * 2012-01-06 2012-08-29 天津津港宇达电子科技有限公司 Street lamp
CN104235697A (en) * 2014-09-28 2014-12-24 宁波金羽桥照明科技有限公司 Heat-radiation type LED (Light Emitting Diode) street lamp

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109343297A (en) * 2018-10-25 2019-02-15 中国科学院西安光学精密机械研究所 A passive thermally controlled lunar surface camera and imaging method
CN109855015A (en) * 2019-03-04 2019-06-07 深圳市超频三科技股份有限公司 A kind of street lamp
CN111928171A (en) * 2020-08-19 2020-11-13 扬州光烁照明有限公司 LED street lamp with waterproof function
CN112503492A (en) * 2020-12-15 2021-03-16 江西众能光电科技有限公司 Heat insulation device for LED

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Application publication date: 20151223