CN201277503Y - LED lampshade with chimney type air draft pipe - Google Patents
LED lampshade with chimney type air draft pipe Download PDFInfo
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- CN201277503Y CN201277503Y CNU2008202126201U CN200820212620U CN201277503Y CN 201277503 Y CN201277503 Y CN 201277503Y CN U2008202126201 U CNU2008202126201 U CN U2008202126201U CN 200820212620 U CN200820212620 U CN 200820212620U CN 201277503 Y CN201277503 Y CN 201277503Y
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- lampshade
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- draft pipe
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Abstract
The utility model relates to an LED lampshade with a chimney type exhaust pipeline, as known to all, the heat dissipating effect is very important to the service life of an LED light source, the lampshade provides highly-effective natural air-cooled heat dissipating ideal microenvionment for the LED light source. The exhaust pipeline of the utility model has the function which is similar to the air draught of a chimney, and air which generates heat through carrying the LED light source can be automatically and rapidly discharged, thereby highly-effectively realizing the effect of self-adaptive forced air-cooled cooling of the LED light source. The lampshade has the characteristics and the advantages that heat emitted by the LED light source itself can be fully utilized to the self-adaptive power source for naturally forcing the air-cooling, and fans which increase the extra costs and consume the extra electricity does not need to be allocated. In the industry design, the LED lampshade is matched with various perfect models of the fantasy imagination, adapts to different building styles and regional customs, and obtains the effects of unique model, beauty and utility, and has good economic benefits and social significance.
Description
[technical field]
The present invention relates to a kind of lampshade, comprise a kind of LED lampshade that has chimney type air draft pipe.Described air draft pipe has the function of similar chimney draught, yet can discharge fast from air draft pipe from the air that will carry the led light source evolution of heat effectively, thereby realizes the purpose of led light source nature air blast cooling cooling expeditiously.Its characteristics and superior part are to make full use of heat that led light source itself the sends power source as natural air blast cooling, and need not dispose the electric fan that need to consume additional power fully, therefore high-efficient energy-saving environment friendly more, and it is cheap for manufacturing cost, need not to safeguard long service life midway.Aspect the outward appearance shape-designing, cooperate the perfect shape-designing of aspects such as specific suitable there and then local conditions and customs and history culture, religious belief again, can obtain the perfect effect of moulding uniqueness, elegance attractive in appearance, economical and practical, environment-protecting long-life, thereby greatly boosting LED environmental protection illumination cause has good economic benefits and social effect.
[background technology]
The LED illumination is emerging environmental protection and energy saving green illumination high-tech industry, and the led light source product has environmental protection, efficient energy-saving characteristics, has obtained the extensive attention of countries in the world.Yet in the process of promoting LED green illumination cause, be subjected to various obstructions, and be exactly that the illuminating effect decay of led light source is too fast from himself one of major obstacles! Do not reach the extra long life of media and communications actual life, make its competitive advantage have a greatly reduced quality, the industry propelling resistance is very huge.
Learn by serious analysis: the inherent most important reason of too fast this external manifestation of LED decay of luminescence is that LED tube core junction temperature is too high, causes the compound semiconductor materials performance degradation to quicken, and loses efficacy and quickens, even cause its final collapse.The problem that grasps the key link as long as take measures the LED junction temperature is effectively reduced, then can prolong the service life of LED lighting source at once greatly.
It is only luminous that the ultimate aim of reduction junction temperature and tidemark are to make LED not generate heat.This is the problem of material science research, in fact this target only may near and can not reach, especially present stage can't reach at all.The prerequisite that engineering is used is to be based upon on the basis of prior art achievement, therefore uses for engineering, and the effective way of practicable reduction LED junction temperature relies on effective heat dissipation technology exactly.
Industry has proposed various technical schemes, also has from theoretical side and is set forth, and have multiple applied product to come out.But in the commodity of reality, the application product that can comprehensively solve heat radiation and relevant issues thereof preferably almost is a phoenix feathers and unicorn horns, be difficult to find, itself or do not reach technical indicator and do not possess the practical value of long-term use, or cost is too high, volume is excessive, weight too heavily waits and makes the user be difficult to accept, and can't promote.For example, by installing electric fan additional is the led light source forced heat radiation, on radiating effect, reach requirement, but install the volume and weight of the extra expense that increases of electric fan, change design increase additional, even, make the original superiority of LED light fixture have a greatly reduced quality as for a series of problems that can not be ignored of the following degradation that causes system reliability; Besides the extra power consumption that drive fan increases makes the reorganizing and outfit light efficiency and will inevitably reduce of LED light fixture, and its ability realizes that electricity saving and energy saving reaches economical target and will inevitably have a greatly reduced quality.In addition, the increase of light fixture total system complexity will inevitably cause the system reliability index to reduce, and in a single day the subsystem relevant with refrigerating fan break down, and will directly cause LED light fixture heat dissipating state to worsen, finally cause the probability of light fixture global failure to increase rapidly, worrying.
Along with the develop rapidly of science and technology in recent years, raw material and design, manufacturing, technology, technology are maked rapid progress constantly progressive, the thermal resistance of led light source parts self and progressively reduces, appearance and use by new material, updating of heat sink material that relates to by the LED manufacturing and encapsulation and structure, led light source module surface constantly reduces to the thermal resistance of LED tube core, most heats can be delivered to fast base plate for packaging from led chip and then be delivered to the shell of led light source module fast.But because the efficiently radiates heat area of light source substrate or light source module shell is big inadequately, perhaps because the residing surrounding enviroment of led light source position is not easy to ventilation and heat, cause the heat exchange of shell radiating fin and ambient air abundant inadequately, cause heat to be assembled in a large number, make that the radiating effect of LED lamp surface is barely satisfactory at the outer shell face.The boundary condition of led light source module housing is desirable not to the utmost to bring the thermograde of deterioration to cause the LED die temperature of light source inside too high, and Here it is causes one of major reason of many led light sources and light fixture premature failure.
In order to reduce the operating temperature of LED tube core effectively, must conscientiously solve heat conduction and heat dissipation problem effectively from each tiny link: be not only a heat conduction and heat radiation making link at the LED tube core, must recognize that secondary even three times, four times heat dissipation technologys that subsequent technique relates to all are vital.The present invention arises at the historic moment under such background: as long as the total thermal resistance of led light source module is enough low, the heat of LED tube core inside fast and effeciently can be transmitted to the light source module surface, then ensuing heat dissipation problem can be solved well by lampshade of the present invention: this lampshade has been built a desirable local little space, the miniature climatic environment of Micro Climate, make the led light source module in lampshade be among the constant relatively airflow field, the heat on module heat radiator surface is by constant and quick flow air is taken away expeditiously, effectively improve the boundary condition of led light source module thermograde, thereby the heat that the LED tube core is sent is discharged fast and is lowered the temperature.What is interesting is that the present invention is congenital to be exactly the intelligence control system with self-adaptive features: the light source heating is many more, and the system radiating effect is just strong more.
[summary of the invention]
The technical problem to be solved in the present invention provides a kind of reasonable in design, and manufacturing process is simple, and cost is cheap relatively, and the gravity-flow ventilation radiating effect can satisfy the lampshade that the heat radiation of corresponding power led light source requires.
For addressing the above problem, the technical scheme that the present invention takes is: a kind of LED lampshade that has chimney type air draft pipe.According to the chimney draught principle, make full use of the heat that led light source self sends, realize the function of led light source self-adapting type gravity-flow ventilation forced heat radiation.
As everyone knows, volumetric expansion after air is heated becomes less than ambient air its proportion and rises naturally.In pipeline, heated gas rises and forms ascending air.If the inner wall shape of pipeline is a chimney-like, that is to say, the cross-sectional area of pipeline hollow space diminishes gradually according to the air-flow direction of advance: its lower end is that the upstream end passage bore of air is thicker, the upper end is that the port of export of air is thinner, the pipeline of this chimney shape is accelerated the air velocity that rises that wherein flows gradually, and actual is the air-flow accelerator.In pipeline, air velocity is deferred to simple mathematical relation substantially: the speed of the air-flow by any cross section of pipeline is inversely proportional to the area in this cross section.Learn that in view of the above in the thicker place of pipeline, air velocity is lower, for example in the porch; And in the thinner place of pipeline, for example in the exit, air velocity is just fast.Zooming air-flow has bigger kinetic energy, causes pipeline upper end to produce negative pressure, makes near the arrival end cold air constantly ' be taken out ' in a steady stream and goes into pipeline.Since the position of led light source module be arranged in inlet air flow must be through part, constant air velocity is slower relatively, the radiating fin of led light source module can fully contact with the air of periphery and reach heat and fully exchange, and can be made new cold air come in by in time ' taking away ' again; Radiating fin periphery effectively airflow flowing naturally and be to take away the heat that led module sends forcibly also obtains simultaneously to continue the energy that rises in funnel-shaped pipeline.So the air-flow of Shang Shenging naturally and understandably forms continually, and the radiating rate that directly influenced by its rate of climb has theatrical ' self adaptation ' feature: the led light source heating is many more, and the flow velocity of air-flow is fast more, and radiating effect is also just good more, otherwise also anti-.When reaching dynamic equilibrium, air velocity obtains stable.Ingenious to utilize this self adaptation state really be the harmony between man and nature, and the wisdom that is full of the eastern civilization is with harmonious.
Key point of the present invention is:
1. a kind of structure that has the LED lampshade of chimney type air draft pipe of the present invention can be divided into two parts substantially: lampshade part and chimney breast part.Mild soft connection between two parts should make handsome in appearancely, more should pay attention to optimum air hydrodynamics effect.
2. the shape of lampshade part is not limit, and both can select for use ready-made lampshade to be transformed, and can make by the special die sinking tool of otherwise designed yet.In general, the specialized designs manufacturing is relatively good targetedly, can reach unification attractive in appearance and high performance.
3. the cost of transforming ready-made lampshade is relatively low, but outward appearance may be not really perfect, and particularly radiating effect may not be best.Also also has other problem simultaneously.In a single day newly-designed lampshade forms in batches, and its cost also can reduce rapidly.
4. carry out special product design for a kind of LED lampshade of the present invention with chimney type air draft pipe, can carry out as far as possible perfectly overall planning from the beginning, comprise the industrial design of external styling, the position arrangement that comprises the led light source module, comprise the mode that installs and fixes of led light source module and the various installation component designs that match thereof, the radiating effect optimality analysis that comprises the led light source module calculates and design, comprise the length of funnel-shaped pipeline and the calculating and the design of sectional area rate of change, also to comprise adding the led light source light fixture integral body that forms behind the upper lamp shade mounting means on building and the design of supporting various installation components, and the effect of assessing its installation.For being applied in outdoor LED light fixture, also must consider the whole air resistance coefficient and the ability of the anti-strong storm of overall structure simultaneously, to guarantee the safety in the product use.This obviously is a system engineering, not only will pursue the effect of optimum data, and it is convenient also will to pay attention to production and processing, assembling and installation technology, also will consider the facility of maintenance and maintenance work even.
5. the design of external styling mainly also is to be divided into two parts to consider.
A) the lampshade part provides one to realize the radiating fin of led light source module and the space that ambient air is carried out abundant exchange heat with led light source module ' cover ' therein, and this space is provided by the inner-cavity structure of this lampshade.Directly have influence on the part of impression as for the outside of lampshade, outer sight design.The lampshade external styling generally can have:
I. be keynote with circle and ellipse, as the design of existing most street lamps;
Ii. the airflow design of similar droplet-shaped;
Iii. square or rectangle design;
Iv. polygon design;
V. ' wooden dipper ' of similar back-off, large space shrouds light source, and little space provides power supply driver to install;
Vi. other design.
B) chimney type air draft pipe part
I. the direct shape-designing up of exhausting outlet can add loam cake in case of necessity so that things such as anti-rainwater;
Ii. exhausting exports the shape-designing of top, turn side mildly;
When iii. being used as street lamp, exhausting outlet turning light pole and near fixing;
When iv. being used as street lamp, the exhausting outlet inserts the light pole internal cavities, utilizes the effective length of the upper end cavity equivalence prolongation air draft pipe of light pole, strengthens the exhausting effect of lampshade pipeline;
V. other design.
C) resultant effect
I. traditional oval lampshade adds the shape-designing of the air draft pipe at top, as the army cap of the soldier Bao Er Ke Chajin of guards of Soviet Union Red Army, a tip of upwards swelling is arranged on the top, gives deep impression;
Ii. lampshade partly imitates White Tower moulding of the North Sea, Beijing, and perfectly round atmosphere succinctly and not loses thick and heavy U.S.;
Iii. lampshade partly imitates the moulding of Beijing the Temple of Heaven, and is of an antique style, and charm is pure, more shows the splendidness of Chinese culture; Also can imitate the moulding in pavilion in ancient times, of an antique style have the modern science and technology element again, highlights the perfect adaptation of Chinese time-honoured and modern science and technology;
Iv. lampshade partly imitates the construction style of Catholicism or Christian church, and serious graceful, the moulding uniqueness is easy to incorporate Western society; Also can imitate religious architectures such as south east asia Buddhism, mysterious serious, elegant graceful, capture more vast market;
V. the lampshade profile is imitated the cartoon character of various animals, for example: the swan of birds, red crowned crane, peacock, the dolphin in the water, whale, sea dog, the rhinoceros of land, giraffe, yak, and other various moulding;
Vi. other design.
[description of drawings]
Fig. 1 is a hemispherical lampshade schematic diagram, and 1 among the figure is led light source or title led light source module, and 2 among the figure is hemispherical lampshades, and 3 among the figure is ports of export of chimney type air draft pipe.The heat that led light source module 1 is sent, the air heat that it is peripheral, the air that carries heat upwards flows along the heat dissipation channel between 1 and 2, quickens gradually after entering the air draft pipe on top, finally discharges from the top 3 of air draft pipe.The space of reserving after the rising of led light source module periphery heated air is left is filled up by the not heated air on module bottom and next door, yet form led light source module periphery from constant air-flow, the led light source module is the air-flow heating, it is the led light source module heat dissipating that air-flow is taken away heat, the two cooperates naturally and brings out the best in each other, and forms the self adaptation system: the heating of led light source module is many more, and air-flow rising power is big more, so speed air flow is just fast more, many more fast more effects will obtain to dispel the heat.
Fig. 2 side of being platform shape lampshade schematic diagram, 4 among the figure are led light sources or claim the led light source module, 5 side's of being platform shape lampshades among the figure, and 6 among the figure is ports of export of chimney type air draft pipe.The heat that led light source module 4 is sent, the air heat that it is peripheral, the air that carries heat moves upward along the heat dissipation channel space between 4 and 5, quickens gradually after entering the air draft pipe on top, finally discharges from the top 6 of air draft pipe.The space of reserving after the rising of led light source module periphery heated air is left is filled up by the not heated air on module bottom and next door, yet form led light source module periphery from constant air-flow, the led light source module is the air-flow heating, it is the led light source module heat dissipating that air-flow is taken away heat, the two cooperates naturally and brings out the best in each other, and forms the self adaptation system: the many more just heat radiations of led light source module heating are many more fast more.
[specific embodiment]
Embodiment one, lampshade adopt the 60W single head LED street lamp of Ancient Chinese for the pavilion moulding
The lampshade of present embodiment adopts Ancient Chinese for the pavilion moulding, and main technical points is as follows:
The led light source module of 160W power consumption is when illumination work, and the electric furnace about a suitable 50W generates heat, and caloric value is quite big, and heat dissipation problem must take seriously.The light source module moulding is as Qin's brick, be approximately cuboid, physical dimension is 120*300*55mm, three sides of its shell are placed with radiating fin, in order to increase contacting of case surface and air, strengthen equivalent area of dissipation, sheathing material is selected the good almag of heat conductivility for use, and final equivalent almag area of dissipation will reach 0.15m
2More than;
2 adopt the lampshade of Ancient Chinese for the pavilion moulding, and the air intake of rectangle lower frame is of a size of 240*388mm, and its length-width ratio is near golden section proportion, and the moulding better appearance is generous;
3 according to calculating, and the air velocity in the lampshade porch will reach 0.1m/S, will reach the speed more than the 0.7m/S in the air draft pipe exit, has good natural air exhaust forced heat radiation effect.
4 actual measurements show, the temperature after almag led light source module surface is constant only than environment temperature height less than 3 ℃, radiating effect is very good.
Embodiment two, 5W-LED Down lamp
The 5W-LED Down lamp of E26 spiral interface is that 11～18W-CFL compact fluorescent lamp promptly is commonly called as the termination substitute products of ' electricity-saving lamp '.For guarantee its heat radiation, the heat-dissipation lamp housing moulding of selecting similar Fig. 1 for use, the air velocity of inlet is designed to 0.1m/S, will reach the speed more than the 0.5m/S in the air draft pipe exit, has good natural air cooled forced heat radiation effect equally.According to design objective, the surface temperature of 5W-LED Down lamp heat-dissipating casing is no more than 5 ℃ of environment temperatures.
Embodiment three, 50W-LED factory building pendent lamp
The factory building space of workshop is higher, needs light fixture that stronger illuminating effect is provided, and the brightness of 50W-LED factory building pendent lamp surpasses the effect of CFL fluorescent lamp 180W, service life be its more than 3 times, have good energy-saving potential.The same with other led light source light fixture, if the ventilation and heat condition of environment for use is not good, will cause led light source to lose efficacy prematurely, just uneconomical economically.Present embodiment 50W-LED factory building pendent lamp adopts the LED lampshade that has chimney type air draft pipe shown in Figure 1, light source module such as Fig. 3 ' Thousands Hands Guanyin ' radiator; The porch air velocity is 0.1m/S, will reach the speed more than the 0.7m/S in the air draft pipe exit, has good natural air exhaust radiating effect.
Claims (10)
1, a kind of LED lampshade that has chimney type air draft pipe is characterized in that: comprise the chimney type air draft pipe of radiating airflow passage part is provided, also be included in the appropriate location perforate to connect lampshade part chimney type air draft pipe, that shroud led light source.
2, have the LED lampshade of chimney type air draft pipe according to one kind of claim 1, it is characterized in that: comprise having the air draft pipe that utilizes the chimney draught principle, concentrate accelerated passage for led light source provides natural air cooled air-flow.
3, have the LED lampshade of chimney type air draft pipe according to one kind of claim 1, it is characterized in that: the appearance and modeling of lampshade part is hemispherical or the semielliptical type type in the perforate of appropriate location, top.
4, have the LED lampshade of chimney type air draft pipe according to one kind of claim 1, it is characterized in that: the appearance and modeling of lampshade part is the streamline moulding at half water droplet that cuts along central symmetry axis of appropriate location, top perforate.
5, have the LED lampshade of chimney type air draft pipe according to one kind of claim 1, it is characterized in that: the appearance and modeling of lampshade part is in the moulding for pavilion, palace and pagoda of the North Sea, similar Beijing of appropriate location, top perforate White Tower, the Temple of Heaven, Ancient Chinese.
6, the LED lampshade that has chimney type air draft pipe according to one kind of claim 1, it is characterized in that: the appearance and modeling of lampshade part is the similar Catholicism in the perforate of appropriate location, top, the pinnacle moulding of Christian church, and the moulding on similar American-European countries palace, castle, steeple pinnacle.
7, have the LED lampshade of chimney type air draft pipe according to one kind of claim 1, it is characterized in that: the appearance and modeling of lampshade is the casper of similar birds, beasts, fish, insects.
8, have the LED lampshade of chimney type air draft pipe according to one kind of claim 1, it is characterized in that: being connected the top of lampshade or the chimney type air draft pipe of appropriate location, top tapping is to settle straight up.
9, have the LED lampshade of chimney type air draft pipe according to one kind of claim 1, it is characterized in that: being connected the top of lampshade or the chimney type air draft pipe of appropriate location, top tapping is that bending is settled obliquely.
10, have the LED lampshade of chimney type air draft pipe according to one kind of claim 1, it is characterized in that: being connected the top of lampshade or the chimney type air draft pipe of appropriate location, top tapping is to connect the bar internal cavity that feeds lamp stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202126201U CN201277503Y (en) | 2008-10-21 | 2008-10-21 | LED lampshade with chimney type air draft pipe |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008202126201U CN201277503Y (en) | 2008-10-21 | 2008-10-21 | LED lampshade with chimney type air draft pipe |
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| CN201277503Y true CN201277503Y (en) | 2009-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008202126201U Expired - Lifetime CN201277503Y (en) | 2008-10-21 | 2008-10-21 | LED lampshade with chimney type air draft pipe |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818239A (en) * | 2012-07-17 | 2012-12-12 | 吕大明 | Phase-change temperature-suppressed wind-cylinder type cooling apparatus |
| CN103216741A (en) * | 2012-01-18 | 2013-07-24 | 欧司朗股份有限公司 | Lighting device and lamp provided with same |
| CN104728628A (en) * | 2013-12-24 | 2015-06-24 | 四川新力光源股份有限公司 | Convection heat-sinking type LED module |
-
2008
- 2008-10-21 CN CNU2008202126201U patent/CN201277503Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216741A (en) * | 2012-01-18 | 2013-07-24 | 欧司朗股份有限公司 | Lighting device and lamp provided with same |
| CN103216741B (en) * | 2012-01-18 | 2016-12-14 | 欧司朗股份有限公司 | Illuminator and there is the light fixture of this illuminator |
| CN102818239A (en) * | 2012-07-17 | 2012-12-12 | 吕大明 | Phase-change temperature-suppressed wind-cylinder type cooling apparatus |
| CN104728628A (en) * | 2013-12-24 | 2015-06-24 | 四川新力光源股份有限公司 | Convection heat-sinking type LED module |
| CN104728628B (en) * | 2013-12-24 | 2016-09-28 | 四川新力光源股份有限公司 | A kind of convection heat dissipation type LED head module |
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