CN201521870U - LED street lamp - Google Patents
LED street lamp Download PDFInfo
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- CN201521870U CN201521870U CN2009202463604U CN200920246360U CN201521870U CN 201521870 U CN201521870 U CN 201521870U CN 2009202463604 U CN2009202463604 U CN 2009202463604U CN 200920246360 U CN200920246360 U CN 200920246360U CN 201521870 U CN201521870 U CN 201521870U
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- street lamp
- led street
- described aluminium
- aluminium shell
- lamp according
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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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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model discloses an LED street lamp. The LED street lamp comprises an aluminum baseplate, an aluminium housing, a glass cover, a connecting part head part and a connecting part tail part, wherein the cross section of the aluminium housing is U-shaped, the aluminium housing, the glass cover, the connecting part head part and the connecting part tail part are connected together to form a hermetical space, the aluminum baseplate is positioned in the hermetical space, a clamping groove is formed on the aluminium housing, the aluminum baseplate is used to weld an LED, and the aluminum baseplate is fixed on the clamping groove of the aluminium housing. By adopting the technical scheme of the utility model, more than 85 percent of heat can be dissipated, and the structure of locking two stages can effectively enhance the waterproof ability during the packaging process, thereby ensuring that the stable shining of the LED street lamp is, and the service life is long.
Description
Technical field
The utility model relates to lighting technical field, relates in particular to a kind of LED street lamp.
Background technology
Street lamp is the important component part of city illumination, traditional street lamp often adopts high-pressure mercury lamp, the high-pressure mercury lamp shortcoming that light efficiency is low has on the whole caused the huge waste of the energy, therefore, development of new is efficient, energy-conservation, the life-span is long, colour rendering index is high, the street lamp of environmental protection has a crucial meaning to city illumination is energy-conservation.
What high-power LED street lamp was different with conventional high-pressure mercury lamp street lamp is, the efficient white light-emitting diodes that the light source of high-power LED street lamp adopts low-voltage DC supply, synthesized by GaN based power type blue-ray LED and yellow fluorescent powder, have efficient, safety, energy-saving and environmental protection, distinct advantages such as the life-span is long, response speed is fast, colour rendering index height, can be widely used in city illumination.
Light emitting diode (Light Emitting Diode, be abbreviated as LED) be based on the efficient solid state light emitter that the faint electric energy of usefulness that semiconductor PN forms just can be luminous, under certain forward bias voltage and injection electric current, the electronics that injects the hole in P district and injection N district is diffusing to active area after radiation recombination and send photon is converted into luminous energy with electric energy.Compare with the conventional road lamp illumination, the LED street lamp has the following advantages:
1, the characteristic of LED street lamp---the one-way of light itself does not have diffusion of light, guarantees light efficiency.
2, the LED street lamp has unique secondary optics design, and the illumination of LED street lamp is mapped to the zone of required illumination, has further improved light efficiency, to reach energy-conservation purpose.
3, the source efficiency of LED has reached 100lm/W at present, and also has very big development space, and theoretical value reaches 250lm/W.And the luminous efficiency of high-pressure mercury lamp is just to increase to some extent with the power increase, and therefore, the overall light efficiency LED street lamp is stronger than high-pressure mercury lamp.
4, the light colour rendering of LED street lamp is more much higher than high-pressure mercury lamp, the high-pressure mercury lamp colour rendering index has only about 23, and LED street lamp colour rendering index reaches more than 75, consider from the visual psychology angle, reach equal brightness, the illuminance of LED street lamp on average can reduce more than 20% than high-pressure mercury lamp, (with reference to Britain's reason lighting criteria).
5, the light decay of LED street lamp is little, and the light decay in 1 year use still to reach road use illumination requirement in 10 years, and the high-pressure mercury lamp light decay is big, has descended about 1 year more than 30% less than 3%, and therefore, the LED street lamp can be lower than high-pressure mercury lamp in the design of using power.
6, the LED street lamp has automatic control energy saver, can be implemented in the reduction power that satisfies maximum possible under the different period lighting requirement situations, saves electric energy.
7, LED is a low-voltage device, the voltage that drives single LEDs is safe voltage, series of products list LEDs power all is 1 watt, use the safer power supply of high voltage source so it is a ratio, be specially adapted to public place (for example: street lighting, factories and miness illumination, automotive lighting, domestic lighting etc.).
8, each unit LEDs small pieces has only very small size, thus can be prepared into the device of different shape, and be suitable for variable environment.
9, the life-span is long: can use more than 50,000 hours, power unit can provide the quality assurance in 3 years, and the Lights section can provide the quality assurance in 5 years.
10, light efficiency height: adopt more than or equal to the chip more than the 100LM, can be energy-conservation more than 75% with respect to the conventional high-tension sodium vapor lamp.
11, simple installation: need not to add and bury cable and need not rectifier etc., directly road lamp cap is installed on that lamp stand connects or with the nested original lamp housing of light source.
12, radiating control is outstanding: summer temperature is controlled at about 45 degree, and adopts passive radiating mode.
13, reliable in quality: circuit power all adopts the high-quality components and parts, and every LEDs all has independent overcurrent protection, need not to worry to damage.
14, photochromic evenly: do not add lens, do not sacrifice to improve brightness evenly photochromic, thereby guarantee that no aperture is photochromic even.
Comprehensive above-mentioned principle, the energy-saving effect of high-power LED street lamp is remarkable, replaces high-pressure mercury lamp to economize on electricity more than 60%.
But in the research work of LED street lamp, solve one of the heat radiation of its structure and waterproof urgent, important problem.
The utility model content
The purpose of this utility model is to propose a kind of LED street lamp, can improve the efficient of heat radiation, and good waterproof effect is arranged.
For reaching this purpose, the utility model by the following technical solutions:
A kind of LED street lamp, comprise aluminium base, aluminium shell, glass cover, connector head and connector afterbody, described aluminium shell cross section is the U type, described aluminium shell, glass cover, connector head and connector afterbody link together, be used to form sealed space, described aluminium base is positioned at described sealed space, on the described aluminium shell draw-in groove is set, described aluminium base is used to weld light emitting diode, and described aluminium base is fixed on the draw-in groove of described aluminium shell.
Described aluminium housing exterior is provided with radiating fin, and described radiating fin is used for heat radiation.
The height of described radiating fin lowers to both sides successively for middle.
The cross section of described radiating fin is a camber.
Also comprise reflector, described reflector setting is corresponding to the hole of described light emitting diode, and described reflector is buckled on the described aluminium base, is used for described light emitting diode and exposes from the hole.
The both sides angle in described aluminium shell U type cross section is 105 degree.
Described aluminium base sticks on the draw-in groove of described aluminium shell, and is screwed.
Described glass cover is fixed with described aluminium shell by two glass folders.
Described connector head and connector afterbody are positioned at described aluminium shell two ends, by screw rod, packing ring, the tight lock of hexagonal (hexagon)nut pushing sealing.
Adopted the technical solution of the utility model, 85% above heat is shed, and the tight lock construction of the two-stage in the encapsulation process strengthened its waterproof ability effectively, thereby guaranteed that the LED street lamp is luminous stable, long service life.
Description of drawings
Fig. 1 is the decomposition texture schematic diagram of LED street lamp in the utility model specific embodiment.
Fig. 2 is the structural representation of LED street lamp aluminium shell in the utility model specific embodiment.
Fig. 3 is the overall schematic of LED street lamp in the utility model specific embodiment.
The specific embodiment
Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by the specific embodiment.
Fig. 1 is the decomposition texture schematic diagram of LED street lamp in the utility model specific embodiment.As shown in Figure 1, this LED street lamp comprises connector head 1, aluminium shell 2, connector afterbody 3, reflector 4, aluminium base 5, hexagonal (hexagon)nut 6, packing ring 7, screw rod 8, glass cover 9 and glass folder 10, wherein aluminium shell, glass cover, connector head and connector afterbody link together, form sealed space, aluminium base and reflector are arranged in the space of sealing.
On the aluminium shell draw-in groove is set, the aluminium base that has welded light emitting diode comes off for preventing that aluminium base is heated across on the draw-in groove that sticks on street lamp aluminium shell, with screw aluminium base is fastened on the draw-in groove simultaneously.
Number according to the power requirement rational deployment light emitting diode of street lamp, for making the lumination of light emitting diode crevice projection angle enough big, and it is enough big to satisfy the light beam utilization rate, hole corresponding to light emitting diode is set on reflector, and reflector is buckled on the aluminium base, light emitting diode is exposed, make the structure of whole light fixture more attractive in appearance simultaneously.
Again glass cover is buckled on the street lamp aluminium shell, utilize two glass folders, one is buckled on the glass cover on one side, and the two with light fixture connector afterbody, light fixture connector head and aluminium shell fastens simultaneously, utilizes hexagonal (hexagon)nut, packing ring, screw rod to impel the tight lock of light fixture two pushing sealing.
In order to improve the efficient of heat radiation, the aluminium housing exterior is provided with radiating fin.Fig. 2 is the structural representation of LED street lamp aluminium shell in the utility model specific embodiment.As shown in Figure 2, the radiating fin height of aluminium housing exterior setting lowers to both sides successively for middle, guaranteed the harmony of conducting heat, if the Temperature Distribution of radiating fin is seriously inhomogeneous, will causing wherein, the radiating fin (part that temperature is lower) of a part does not play a role or acts on very limited.The cross section of radiating fin is a camber simultaneously, and this camber design can be effectively dustproof, because dust will greatly hinder heat radiation.
The structure of street lamp is used the Natural Heat Convection mode like this, and heat is conducted heat to the aluminium shell by aluminium base, and through free convection, the radiating fin on the aluminium lamp housing conducts heat in the air, has finished the transmission of heat, avoids producing on led chip heat accumulation.Street lamp have use at outdoor night, radiating surface is positioned at above the side and the restricted advantage that helps the natural convection air heat radiation such as less of build.
Fig. 3 is the overall schematic of LED street lamp in the utility model specific embodiment.As shown in Figure 3, aluminium shell cross section is the U type, and this is that LED is the half space luminous light source because different with conventional light source.High-pressure mercury lamp or metal halide lamp are total space luminous light source, the emergent ray of a half space need be changed 180 degree directions invests in second half space, when we rely on reflector and finish, reflector is inevitable to the absorption and being in the light of light source self of light, and the light reflex time is subjected to blocking of light source self and converts heat energy to, or reflector is to the absorption again of light secondary reflection, a part of light losing of light source.
And use LED can not have the loss of this respect as the structure in light source and this specific embodiment, the utilization rate of light is than conventional light source height.The light source of the structure of LED street lamp is made up of very a plurality of LED, by the projecting direction of the left and right sides each LED of complementary design, according to the mode of light beam, towards a plurality of positions or a plurality of zone outwards luminous equably, can form local lighting, can also make light beam have directionality.Simultaneously light beam can project place far away, has strengthened the projection scope (the c angle: be the projecting direction of maximum light intensity and the road ordinate c that should have a certain degree, the size of angle c is decided by the width of road and the position on pavement) of the γ elevation angle and c angle.Be subjected to obtain uniform illumination according to the road surface in order to make, the lamp post structure angle in this specific embodiment is 105 degree angles, and the structure of this angle is after contrast test repeatedly, makes the utilization rate of light reach the angle of big level.When street lamp is installed, can adjust the size at the required light fixture γ elevation angle according to the characteristics on road surface, utilize 6 M10 expulsion bolting street lamps.
And the luminous efficiency that the LED street lamp has secondary optical system, gets optical efficiency more than 90%, 90lm/w is above.Light source left and right sides complementary design and secondary optical system and half light chopping distribution curve flux solve substantially between light and the light and stop.Improve optical efficiency, solve road illumination secondary uneven and that traditional spherical light source must rely on the light emission to solve to a certain extent and get light and light loss problem, the uniformity to photoirradiated surface is controlled, can accomplish in theory in the target area that fully evenly this also can be avoided the light waste in conventional light source " bright under the lamp " phenomenon.Use the colour rendering index height (75～80) of high colour rendering index LED simultaneously, people's reaction speed is fast, and it is brighter that the road surface seems, feels more comfortable, and it is safer that human pilot is also felt.
The above; it only is the preferable specific embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with the people of this technology in the disclosed technical scope of the utility model; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (9)
1. LED street lamp, it is characterized in that, comprise aluminium base, aluminium shell, glass cover, connector head and connector afterbody, described aluminium shell cross section is the U type, and described aluminium shell, glass cover, connector head and connector afterbody link together, and are used to form sealed space, described aluminium base is positioned at described sealed space, on the described aluminium shell draw-in groove is set, described aluminium base is used to weld light emitting diode, and described aluminium base is fixed on the draw-in groove of described aluminium shell.
2. a kind of LED street lamp according to claim 1 is characterized in that described aluminium housing exterior is provided with radiating fin, and described radiating fin is used for heat radiation.
3. a kind of LED street lamp according to claim 2 is characterized in that, the height of described radiating fin lowers to both sides successively for middle.
4. according to claim 2 or 3 described a kind of LED street lamps, it is characterized in that the cross section of described radiating fin is a camber.
5. a kind of LED street lamp according to claim 1 is characterized in that, also comprises reflector, and described reflector setting is corresponding to the hole of described light emitting diode, and described reflector is buckled on the described aluminium base, is used for described light emitting diode and exposes from the hole.
6. a kind of LED street lamp according to claim 1 is characterized in that, the both sides angle in described aluminium shell U type cross section is 105 degree.
7. a kind of LED street lamp according to claim 1 is characterized in that described aluminium base sticks on the draw-in groove of described aluminium shell, and is screwed.
8. a kind of LED street lamp according to claim 1 is characterized in that, described glass cover is fixed with described aluminium shell by two glass folders.
9. a kind of LED street lamp according to claim 1 is characterized in that, described connector head and connector afterbody are positioned at described aluminium shell two ends, by screw rod, packing ring, the tight lock of hexagonal (hexagon)nut pushing sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202463604U CN201521870U (en) | 2009-10-22 | 2009-10-22 | LED street lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202463604U CN201521870U (en) | 2009-10-22 | 2009-10-22 | LED street lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201521870U true CN201521870U (en) | 2010-07-07 |
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ID=42508045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202463604U Expired - Lifetime CN201521870U (en) | 2009-10-22 | 2009-10-22 | LED street lamp |
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| Country | Link |
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| CN (1) | CN201521870U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506351A (en) * | 2011-11-01 | 2012-06-20 | 西安金诺光电科技有限公司 | LED flat-panel lighting device |
| CN102759045A (en) * | 2011-04-28 | 2012-10-31 | 华中科技大学 | Easy-radiating LED streetlamp |
| CN103574490A (en) * | 2012-07-21 | 2014-02-12 | 无锡易昕光电科技有限公司 | Light-emitting diode (LED) lamp wire-covering plate |
| CN104100889A (en) * | 2014-07-23 | 2014-10-15 | 深圳市超频三科技有限公司 | Road lamp |
-
2009
- 2009-10-22 CN CN2009202463604U patent/CN201521870U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759045A (en) * | 2011-04-28 | 2012-10-31 | 华中科技大学 | Easy-radiating LED streetlamp |
| CN102759045B (en) * | 2011-04-28 | 2014-08-27 | 华中科技大学 | Easy-radiating LED streetlamp |
| CN102506351A (en) * | 2011-11-01 | 2012-06-20 | 西安金诺光电科技有限公司 | LED flat-panel lighting device |
| CN103574490A (en) * | 2012-07-21 | 2014-02-12 | 无锡易昕光电科技有限公司 | Light-emitting diode (LED) lamp wire-covering plate |
| CN104100889A (en) * | 2014-07-23 | 2014-10-15 | 深圳市超频三科技有限公司 | Road lamp |
| CN104100889B (en) * | 2014-07-23 | 2017-01-18 | 深圳市超频三科技股份有限公司 | Road 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: CHINA LIGHT HIGH-TECH (BEIJING) ENERGY SAVING INVE Free format text: FORMER OWNER: LI RUHAI Effective date: 20121113 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121113 Address after: 102600, Beijing, Zhongguancun science and Technology Park, Yongxing Road, No. 25 Daxing pharmaceutical base, C building, three floor Patentee after: IN THE LIGHT GAOKE (BEIJING) ENERGY SAVING INVESTMENT MANAGEMENT LIMITED BY SHARE LTD Address before: 102600, Zhongguancun Beijing science and Technology Park Daxing pharmaceutical industry base, No. 25 Yongxing Road, C building, 3 floor Patentee before: Li Ruhai |
|
| DD01 | Delivery of document by public notice |
Addressee: IN THE LIGHT GAOKE (BEIJING) ENERGY SAVING INVESTMENT MANAGEMENT LIMITED BY SHARE LTD Document name: Notification of Passing Examination on Formalities |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100707 |