CN102691952A - LED (light emitting diode) street lamp device - Google Patents
LED (light emitting diode) street lamp device Download PDFInfo
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- CN102691952A CN102691952A CN201210161845XA CN201210161845A CN102691952A CN 102691952 A CN102691952 A CN 102691952A CN 201210161845X A CN201210161845X A CN 201210161845XA CN 201210161845 A CN201210161845 A CN 201210161845A CN 102691952 A CN102691952 A CN 102691952A
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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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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention belongs to the technical field of LED (light emitting diode) light sources, in particular to an LED street lamp device. The LED street lamp device mainly comprises a vacuum heat pipe bracket radiator, a heat exchange plate, an LED light source module, a light distribution module, a drive power supply module and a main lamp post, wherein one end of the vacuum heat pipe bracket radiator is closely attached to the LED light source module through the heat exchange plate and serves as a hot end, the other end of the vacuum heat pipe bracket radiator, far from the LED light source module, serves as a cold end, the cold end is higher than he hot end, a liquid working medium is filled in a pipe of the vacuum heat pipe bracket radiator, wherein fins can be welded on the outer wall of the vacuum heat pipe bracket radiator so as to expand the cooling surface. According to the invention, the cooling problem of the high-power LED light source module is effectively solved, the cost of the radiator is lowered, the weight of a street lamp is greatly reduced, and the safety is improved. The LED street lamp device has the characteristics of simple structure, low cost, easiness in assembly, disassembly and maintenance, small size, light weight, low light attenuation and the like.
Description
Technical field
The invention belongs to the led light source technical field, be specifically related to a kind of High Power Illuminator, especially relate to LED road lamp device outdoor and that road lighting is used.
Background technology
Logical requirement does not wait from 4000lm-40000lm outdoor lighting to light fixture light, adopts on the current market 160lm/W solid state light emitter the most efficiently to need single lamp power of 30W-300W yet, wherein has to surpass 70% power and need dissipate with the form of heat, according to 50cm
2The radiator area of/W calculates, several kilograms at least of the weight of aluminium radiator, and tens of at most kilograms not only increase the light fixture cost, are installed on the high aerial very big potential safety hazard that also exists.The light source lamp design of tradition gaseous state is not owing to exist heat dissipation problem; Main consideration luminous intensity distribution and sealing problem; The solid state light emitter Design of Luminaires was too much plagiarized the thinking of traditional gaseous state light source lamp design in the past; Separate between light fixture and the lighting device miscellaneous part, the support of lighting device miscellaneous part and other functions outside the outward appearance are left in the basket.Theoretical research and practical proof show that all the radiating effect of arranging compact radiating fin is far away from wide-open radiator, and the real effectively area of dissipation of the radiating fin of compact arrangement often has only the 50%-80% of its gross area.At present there is more problem in LED road lamp device heat dissipation design, such as, adopting aluminium base radiator, volume is big, heavy, heat conduction and heat radiation is all not good, is suspended on more than ten meter the lamp stand, and security is low; The radiating fin that adopts hydrocone type tubule footpath heat pipe to add compact structure is adopted by a lot of producers in recent years, yet, the capillary easy blocking of one side hydrocone type tubule footpath heat pipe; The heat pipe for thermal conductivity rate is descended even forfeiture; On the other hand, compact fin structure opening is low, and air convection and heat radiation efficiency is low; Even if heat can in time export to the fin place, can not in time loose in environment.And the structure of outdoor illumination is non-cramped construction mostly, and lamp stand or the support and the atmosphere that especially support light fixture have good cross-ventilation and heat radiation condition, can be competent at the heat sinking function of solid state light emitter fully.Though general lamp stand or timbering material are not superior heat conductor, the present invention utilizes heat pipe long-range phase-change heat transfer principle, can the heat that solid state light emitter produces be transported to rapidly on lamp stand or the support to shed.In conjunction with heat pipe phase-change heat transfer and reasonably lamp stand and support design, significantly do not increasing on the basis of cost, be expected to solve the heat dissipation problem of outdoor large power solid-state illumination light fixture at all.Break through the restriction of high-power LED lamp heat radiation bottleneck, make the integrated encapsulated LED light source module of COM practicability, solid-state lighting lamp is expected significantly " weight reducing ", falls cost.
Chinese invention patent; Patent No. CN101526204, disclosing a kind of " high-power forced radiation type heat pipe LED illumination device " is to be with the heat pipe of air blast cooling to dispel the heat to LED through one, though certain effect is arranged; But; Also have big problem: air blast cooling and unreliable on the one hand if be used for the fan fails of air blast cooling, must cause the LED junction temperature too high and lost efficacy; On the other hand, adopt hydrocone type tubule footpath heat pipe to add the radiating fin of compact structure, the hydrocone type tubule is the capillary easy blocking of heat pipe directly; Make the decline of heat pipe for thermal conductivity rate even high thermal resistance occurs; And compact fin structure opening is low, and air convection and heat radiation efficiency is low; Even if heat can in time export to the fin place through heat pipe, can not in time loose in environment; The 3rd, heat pipe and air blast cooling device can increase system energy consumption and manufacturing cost, compare with the large tracts of land aluminium radiator that tradition is heavy, do not have significant advantage.By comparison; The present invention provides a kind of gravitational force refluxing type vacuum heat-pipe street lamp pole radiator, has the characteristic of excessive heat conductance, big heat-delivery surface and open radiating surface, can have fully with air contact, convection current; Reject heat in the environment, need not fan forced convection; And there is not the capillary blockage problem in long, working stability of gravitational force refluxing type vacuum heat-pipe life-span.Compare with the aluminium base radiator street lamp that volume is big and heavy; The vacuum heat-pipe street lamp pole radiator that the present invention adopts is to transform light pole, need not independent radiator, has lost big and heavy aluminium base radiator; The volume and weight of the Lights section all diminishes significantly, and security promotes.
Summary of the invention
The object of the present invention is to provide a kind of good heat dissipation effect, in light weight, the LED road lamp device that volume is little.
LED road lamp device provided by the invention, it comprises vacuum heat-pipe support radiator 1, heat exchanger plate 4, led light source module 5, luminous intensity distribution module 6, driving power module 8 and king light bar 9; Wherein, One end of said vacuum heat-pipe support radiator 1 fits tightly with led light source module 5 through heat exchanger plate 4, is called the hot junction, and vacuum heat-pipe support radiator 1 other end away from led light source module 5 is called cold junction; Wherein, be higher than the hot junction on the cold junction horizontal direction; Said vacuum heat-pipe support radiator 1 is arranged on the king light bar 9; Said luminous intensity distribution module 6 adopts lens or reflector; Through being tightly connected as glue sealing ring and securing member and heat exchanger plate 4, luminous intensity distribution module 6 covers led light source module 5, and said driving power module 8 is arranged in the king light bar 9; Connect led light source module 5 through lead, be provided with liquid refrigerant 2 in the pipe of said vacuum heat-pipe support radiator 1.As shown in Figure 1.
Vacuum heat-pipe support radiator 1 according to the invention is a gravitational force refluxing type vacuum heat-pipe structure, and heat pipe outer wall can be provided with fin 3 according to led light source module general power, at the prerequisite downward modulation bulk wight amount and the cost that guarantee to have enough area of dissipations.
The vacuum heat-pipe cross sectional shape of said vacuum heat-pipe support radiator 1 is circular, oval or square.
The vacuum heat-pipe of said vacuum heat-pipe support radiator 1 is straight tube or curved pipe.Can also heat pipe splicing be made into triangle, ridge shape, arc or turning shape, can satisfy different application occasions such as the one-sided or bilateral illumination of road, and can the long-pending and distribution of weight of simple and easy adjustment heat pipe rack surface, also can take into account cost.
The contact-making surface of said heat exchanger plate 4 and vacuum heat-pipe support radiator 1, promptly the one side of direct contact heat intraluminal fluid attitude working medium 2 is class alveolate texture, fin structure or protruded stigma shape structure, and is in order to increase the hot junction heat exchange area, as shown in Figure 6; And the another side of heat exchanger plate 4 is the plane, like surface polishing, directly pastes mutually with led light source module 5, and heat-conducting silicone grease is filled at the veneer place, to reduce the thermal resistance at interface between led module and the heat exchanger plate.
Said luminous intensity distribution module 6 adopts lens or reflector, through picture glue sealing ring and securing member and heat exchanger plate 4 realization sealings, device dustproof and waterproof grade is reached more than the IP65.
Said liquid refrigerant 2 boiling points are 40 ~ 100 ℃.
The heat pipe of said vacuum heat-pipe support radiator 1 and its fin 3 are to be processed by one or more of stainless steel, copper or acieral material.
Said driving power module 8 places in the king light bar, realizes being electrically connected through anti-electromagnetic interference cable and led light source module, and driving power does not receive the led light source warming-up effect away from the heat pipe hot junction.
Said heat exchanger plate 4 is positioned at the minimum position of vacuum heat-pipe support radiator 1, and liquid refrigerant is flowed by gravity back on the heat exchanger plate.
Radiating principle of the present invention is, the heat that LED work produces is transmitted to the hot junction of vacuum heat-pipe support radiator 1 through heat exchanger plate 4, and hot-side temperature raises; Liquid refrigerant 2 in the heating, vacuum heat pipe support radiator 1, liquid refrigerant 2 boiling point of liquid are lower, are heated to be prone to evaporation; Even boiling, because the cold junction of heat pipe is higher than the hot junction, steam is carrying heat and is rising along heat pipe toward cold junction; In the uphill process, steam is constantly condensed by the tube wall of vacuum heat-pipe support radiator 1 cooling, the part steam is arranged even can arrive the cold junction of vacuum heat-pipe; The steam cooling condenses into liquid; Liquid flows to the hot junction next time in the effect of gravity, circulation again and again, and the heat that LED discharges is transported to long distance the cold junction of heat pipe continuously by worker quality liquid; At last, wide area surface and fin heat radiation or the cross-ventilation of heat through high opening property discharges to environment.
Vacuum heat-pipe support radiator 1 is a necessary component of light pole, as street lamp bracket, also possesses the characteristic of high thermal conductivity and big heat-delivery surface; The radiator of double as led light source module; Solve the heat dissipation problem of high-power LED light source module effectively, no longer needed the heavy metal heat sink of independently big volume, the material cost of not only having saved independent radiator; Can also alleviate road lamp device weight significantly, improve the security of street lamp.
Lightweight LED lighting device provided by the invention, its holder structure is compact, simple, is easy to the dustproof and waterproof sealing, light weight, modularization is easy to installation and maintenance; Thermal source and radiator distance, the radiating principle of heat pipe is not fully exerted, and heat can be conducted from thermal source rapidly; Heat pipe does not significantly increase cost and weight as the requisite part of lamp stand, and the heat pipe surface is open good; Area of dissipation is big, can satisfy the requirement of great power LED cooling to radiator area fully, need not use independently aluminium radiator; Light weight is saved material and cost.
To the deficiency in the present LED road lamp device heat dissipation design, such as, adopting aluminium base radiator, volume is big, heavy, heat conduction and heat radiation is all not good; And adopt hydrocone type tubule footpath heat pipe to add the radiating fin of compact structure; The capillary easy blocking of hydrocone type tubule footpath heat pipe descends the heat pipe for thermal conductivity rate even forfeiture, on the other hand on the one hand; Compact fin structure opening is low; Air convection and heat radiation efficiency is low, even if heat can in time export to the fin place, can not in time loose in environment.Utilization needs to use the characteristic of lamp stand, and the principle in conjunction with the long distance of heat pipe is conducted heat is designed to fin vacuum heat-pipe structure to light pole; Both can lose heavy and huge aluminium radiator; Also improved the efficiently radiates heat area of radiator and the opening of radiating surface greatly, promoted air convection and heat radiation efficiency, made the COB integrated light source module can practicability on this device; Reduced cost, made installation simpler and easy.
Description of drawings
Fig. 1 is the LED road lamp device sketch map of two kinds of straight tube shape heat pipe-type lamp stands.Wherein, be that vacuum heat-pipe support radiator becomes the font of falling L to be connected with the king light bar (a), (b) be vacuum heat-pipe support radiator becomes T-shaped to be connected with the king light bar.
Fig. 2 is the LED road lamp device sketch map of two kinds of arc heat pipe-type lamp stands.Wherein, be that vacuum heat-pipe support radiator becomes the font of falling L to be connected with the king light bar (a), (b) be vacuum heat-pipe support radiator becomes T-shaped to be connected with the king light bar.
Fig. 3 is the LED road lamp device signal of three kinds of straight tube turning shape heat pipe-type lamp stands.Wherein, be that vacuum heat-pipe support radiator becomes the font of falling L to be connected with the king light bar (a), (b) be vacuum heat-pipe support radiator becomes T-shaped to be connected with the king light bar, (c) become shape of BU to be connected with the king light bar for vacuum heat-pipe support radiator.
Fig. 4 is the LED road lamp device sketch map of pipe non-finned heat pipe support, and wherein (a) is triangular structure, (b) and (c) is that two kinds of ridge shape structures, (d) are bow-shaped structural.
Fig. 5 is the LED road lamp device sketch map of square tube non-finned heat pipe support, and wherein (a) is triangular structure, (b) and (c) is two kinds of ridge shape structures.
Fig. 6 is the heat exchanger plate sketch map, and wherein (a) and (b) be two kind honeycombed heat exchangers (c) is that fin-shaped heat exchanger, (d) are protruded stigma shape heat exchanger.
Label among the figure: 1 is vacuum heat-pipe lamp stand radiator, and 2 is liquid refrigerant, and 3 is fin, and 4 is heat exchanger plate, and 5 is the led light source module, and 6 is light-distribution lens, and 7 is sealing fastener, and 8 is the driving power module, and 9 is the king light bar.
The specific embodiment
Below through further describing the present invention.
Lightweight LED road lamp device of the present invention comprises with the lower part: long 1 meter vacuum heat-pipe street lamp pole, the integrated packaged LED module of COB, heat exchanger plate, light-distribution lens, sealing fastener, 100W driving power and the king light bar of 100W; Wherein, Dress acetone working medium in the heat pipe, heat pipe outer wall has the spirality fin.Whole road lamp device, like Fig. 1 (a), assembling process is following
1. processing fin vacuum heat-pipe: the outer tube wall of the lightweight stainless steel tube stage casing 700mm length of, diameter 58mm long at one meter; Through ratio-frequency welding or the even throat thickness of fine weldering is 0.5mm; Highly be spirality fin 140 rings of 20mm, the heat-sinking capability of heat pipe efficiently radiates heat area reaches more than the 200W; Then, be evacuated to 10 in will managing
-3About Pa, about perfusion acetone 500ml; At last, the sealing heat pipe guarantees that heat pipe reaches the condition of high vacuum degree sealing.
2. the integrated encapsulated LED light source module of the COB of two groups of 100W is fastened on the heat exchanger plate of heat pipe through screw respectively, the interface that the led light source module is close to heat exchanger plate is filled with heat-conducting silicone grease.
3. with securing member and sealing ring two lens are separately fixed on the heat exchanger plate, the corresponding two groups of led light source centers of difference, two lens centres, the power cable of two groups of led light sources is drawn through the sealing ring lead wire outlet respectively, and the dustproof and waterproof grade reaches more than the IP65.
4. the heat pipe cold junction of the device of 1-3 step being made is fixed to king light masthead end, and cold junction is a little more than the hot junction.
5. the LED driving power with two 100W places in the king light bar, docks the driving power output with two groups of led light source module power cable lines respectively.
When environmental problem is 20 ℃, survey the cold and hot end temperature difference of support less than 5 ℃, 20 ℃ of hot junction temperature rises, 25 ℃ of the support temperature rises of the integrated encapsulated LED light source module of COB, going out the LED junction temperature rise according to led light source module thermal resistance calculation is 45 ℃.
1. like embodiment 1 said processing fin vacuum heat-pipe.
2. one group is the LED of 5W by single peak power; By 5 * 8 array arrangements; With one group of same lenslet LED light source consisting module of arranging by 5 * 8 specifications, it is on the heat exchanger plate that the led light source module is fastened on plane, heat pipe hot junction through sealing ring and screw, and the interface that the led light source module is close to heat exchanger plate is filled with heat-conducting silicone grease; The led light source power cable is drawn through the sealing ring lead wire outlet, and the dustproof and waterproof grade reaches more than the IP65.
3. the heat pipe cold junction of the device of 1-2 step being made is fixed to king light masthead end, and cold junction is a little more than the hot junction.
4. the LED driving power that is 200W with a peak power places in the king light bar, docks the driving power output with led light source module power cable line.
When environmental problem is 20 ℃, survey the cold and hot end temperature difference of support less than 5 ℃, about 20 ℃ of hot junction temperature rises, the heat sink temperature rise of support of the integrated encapsulated LED light source module of COB is 25 ℃, going out the LED junction temperature rise according to led light source module thermal resistance calculation is 35 ℃.
The straight tube shape of fin vacuum heat-pipe shown in Fig. 1 (a) of adopting among the embodiment 1 or 2, power board has adopted the alveolate texture of Fig. 6 (a).Also adopted among other embodiment shown in Fig. 1 (b) straight tube shape structure or Fig. 2 (a) or (b) shown in arcuate structure or Fig. 3 (a) or (b) or the straight tube turning shape structure (c); The perhaps non-finned heat pipe supporting structure of Fig. 4 (a) and (b), (c) and Fig. 5 (a) and (b), (c), heat exchanger plate also adopted Fig. 6 (b), (c) or (d) shown in cellular, fin-shaped or protruded stigma shape structure.Whether heat pipe band fin, and fin surface is long-pending, the length of heat pipe, diameter all can be done suitably adjustment according to the led light source general power.
Claims (7)
1. a LED road lamp device is characterized in that comprising vacuum heat-pipe support radiator (1), heat exchanger plate (4), led light source module (5), luminous intensity distribution module (6), driving power module (8) and king light bar (9); Wherein, One end of said vacuum heat-pipe support radiator (1) fits tightly with led light source module (5) through heat exchanger plate (4); Be called the hot junction; Vacuum heat-pipe support radiator (1) is called cold junction away from the other end of led light source module (5), wherein, is higher than the hot junction on the cold junction horizontal direction; Said vacuum heat-pipe support radiator (1) is arranged on the king light bar (9); Said luminous intensity distribution module (6) adopts lens or reflector; Be tightly connected through looking like glue sealing ring and securing member and heat exchanger plate (4), luminous intensity distribution module (6) covers led light source module (5), and said driving power module (8) is arranged in the king light bar (9); Connect led light source module (5) through lead, be provided with liquid refrigerant (2) in the pipe of said vacuum heat-pipe support radiator (1).
2. LED road lamp device as claimed in claim 1 is characterized in that said vacuum heat-pipe support radiator (1) is a gravitational force refluxing type vacuum heat-pipe structure, and heat pipe outer wall is provided with fin (3).
3. LED road lamp device as claimed in claim 1, the vacuum heat-pipe cross sectional shape that it is characterized in that sky heat pipe support radiator (1) is for circular, oval or square.
4. LED road lamp device as claimed in claim 1, the vacuum heat-pipe that it is characterized in that vacuum heat-pipe support radiator (1) is straight tube or curved pipe; Or heat pipe splicing is made into triangle, ridge shape, arc or turning shape.
5. LED road lamp device as claimed in claim 1; The contact-making surface that it is characterized in that said heat exchanger plate (4) and vacuum heat-pipe support radiator (1); Be the one side of direct contact heat intraluminal fluid attitude working medium (2), be class alveolate texture, fin structure or protruded stigma shape structure.
6. LED road lamp device as claimed in claim 1 is characterized in that said liquid refrigerant (2) boiling point is 40 ~ 100 ℃.
7. LED road lamp device as claimed in claim 1, heat pipe and the fin (3) that it is characterized in that said vacuum heat-pipe support radiator (1) are to be processed by one or more of stainless steel, copper or acieral material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210161845XA CN102691952A (en) | 2012-05-23 | 2012-05-23 | LED (light emitting diode) street lamp device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210161845XA CN102691952A (en) | 2012-05-23 | 2012-05-23 | LED (light emitting diode) street lamp device |
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| CN102691952A true CN102691952A (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210161845XA Pending CN102691952A (en) | 2012-05-23 | 2012-05-23 | LED (light emitting diode) street lamp device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062732A (en) * | 2012-12-17 | 2013-04-24 | 秦大春 | Composite tube type heat pipe light-emitting diode (LED) street lamp radiator |
| CN108644692A (en) * | 2018-05-16 | 2018-10-12 | 扬州市海德灯业有限公司 | A kind of cooled LED street lamp |
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| CN102287688A (en) * | 2011-07-20 | 2011-12-21 | 复旦大学 | Streetlamp device with integrated structure of heat pipe lamp post and light emitting diode (LED) light source |
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| US20100208457A1 (en) * | 2007-09-05 | 2010-08-19 | Sung-Hwan Keal | Light emitting diode lamp |
| CN201448707U (en) * | 2009-08-10 | 2010-05-05 | 渠志鹏 | Ultra-large power LED street lamp with heat pipe for heat dissipation |
| CN201448790U (en) * | 2009-08-10 | 2010-05-05 | 渠志鹏 | Hot-pipe tilted communication split type LED street lamp radiating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103062732A (en) * | 2012-12-17 | 2013-04-24 | 秦大春 | Composite tube type heat pipe light-emitting diode (LED) street lamp radiator |
| CN108644692A (en) * | 2018-05-16 | 2018-10-12 | 扬州市海德灯业有限公司 | A kind of cooled LED street lamp |
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Application publication date: 20120926 |