CN101435554A - Light source module for illumination equipment - Google Patents
Light source module for illumination equipment Download PDFInfo
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- CN101435554A CN101435554A CNA2008101314814A CN200810131481A CN101435554A CN 101435554 A CN101435554 A CN 101435554A CN A2008101314814 A CNA2008101314814 A CN A2008101314814A CN 200810131481 A CN200810131481 A CN 200810131481A CN 101435554 A CN101435554 A CN 101435554A
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Abstract
The invention relates to a method for producing air flow used for cooling a light source and a light source module for lighting equipment. The light source module comprises a cooling device for cooling the light source and a light source substrate The method aims to realize the effective cooing to a lamp in the lighting equipment and a projector, and the cooling can be realized through the light source module, wherein at least one forced air flow is produced through an air supply system, the air supply system is arranged in a shell of the lighting equipment, is connected through a pipeline, and terminates at a conduit, and the conduit guides the air flow towards the light source. The air supply system can work under the condition that an inlet for sucking the air into an air supply unit is arranged at the relatively cold position by connecting the air supply unit and the position actually cooled by the air flow through a pipeline, so that blown air has the temperature as low as possible.
Description
Technical field
The present invention relates to a kind of light source module that is used for lighting apparatus (light fixture), it comprises light source, this light source connects by light source base, this light source module comprises the cooling device of this light source of cooling and light source base, this light source module further comprises dichroic reflector, wherein at least one radiator (heat sink) is around this dichroic reflector, this radiator comprises a plurality of discs, these discs are formed in has the air gap between them, the air gap between this disc is oriented almost the central shaft perpendicular to this lighting apparatus, this radiator forms the air gap between disc that forms radiator and dichroic reflector, wherein form the air gap opening of disc between this disc of radiator.
The invention further relates to a kind of generation and be used to cool off the method for the air stream of light source, produce air stream by this method in pressure fan radially and give birth to, this pressure fan comprises rotary fan, and wherein fan produces almost tangent with rotary fan air stream.
Background technology
The clamp portion temperature (pinch temperature) that reduces the light source base of the bulb that has filament at least is very important.This filament passes lamp encapsulation (lamp closure) and is connected by electric installation with lamp socket.Temperature raises and causes the oxidation and the corrosion of electric conductor.This causes the life-span of lamp to shorten.Therefore, the temperature in clamp portion must be reduced to below 450-500 degree centigrade usually.
US5,626,416 have described a kind of lamp module device that comprises reflector, and wherein fan produces air stream.Air stream is around lamp socket, and the air flow point is opened and continued to enter into space between inner reflector and the lamp then, and wherein another part of air stream flows between inner reflector and the external reflectance device.Propagated by the outside reflector of inner reflector by the infrared light that lamp produces, its mid-infrared light partly is absorbed, and part is reflected.
Outside in the reflector absorbed part infrared light with lower frequency and part towards the radiation once more of lamp socket ground quilt.Thereby lamp socket can be heated to too high temperature so that it has shortened the life-span of lamp.
US5,515,245 have described a kind of light source shell, and it holds light source, wherein provide heat radiation by heat filter and the cooled blade that is supported in the light path, and wherein the part of light reflects towards cooled blade.
Cooled blade is around reflector, and infrared light passes through reflector, and is absorbed in cooled blade.At least some cooled blades are transmitted to lamp socket with the heat that absorbs, and this makes the temperature in the lamp socket raise.This can cause the life-span of lamp to shorten.
US2002/0129262A1 has described a kind of lamp projector, it comprises elliptical reflector, the first sphere retrodirective reflector (retro-reflector), second sphere retrodirective reflector and the light source, first retrodirective reflector has first perforate formed thereon, this first perforate has first diameter and first nodal point, second retrodirective reflector is between the elliptical reflector and first retrodirective reflector, this second retrodirective reflector has second perforate formed thereon, this second perforate has second diameter and second central point, this second diameter is less than first diameter, this first and second central point is positioned on the common axis, this light source is positioned at the focus place of elliptical reflector, this light source also is positioned on the described common axis, the light that the elliptical reflector reflection source sends, the light that is reflected is by first and second perforates, and this first and second retrodirective reflector is located such that the light that light source sends is returned towards the light source reflection.A kind of light projector also is provided in addition, it comprises the light source of projecting beam and the optical element that can move between primary importance, the second place and a plurality of centre position, in described primary importance, light beam can not shine on the optical element, in the described second place, all light beam irradiates are on optical element, and in described centre position, the part of light beam is radiated on the optical element, and wherein optical element is made of a plurality of sub-elements of radially cutting apart.
Cooled blade has been described in this patent application, and these cooled blades are to the reflector mechanical connection, and cooled blade is around reflector.Between this reflector and cooled blade, there is not the air gap.Therefore between reflector and cooled blade, can not there be air stream.Limited convection current air-cooling only takes place between the disc.
DE G 8620537.4 has described a kind of light fixture, and it comprises the flexible light guide material, and described light-guide material can be a plurality of glass optical fibers, is used for light is transmitted to the position that the table top glazing will shine from light source.In this invention, light source is arranged in the chamber that is formed on a pile cooling disc.The form of cooling disc shows that reflector can be arranged in the chamber.Reflector can have the bulb that is arranged on preposition (prefixed) in this reflector, and this integrated unit has pedestal, connects at this pedestal place lamp to be pressed in the socket.The air stream that whole light source with reflector and source places air-supply arrangement to produce, this air-supply arrangement is blown along disc.
This invention may be very effective such as the light source on the desk for using.But on desk, it is defectiveness also, because the cooling device continuous operation.This noise that causes can interfere with the people who works on desk.In these German application documents, do not making a try aspect the cooling of light source base.
WO2005/095853 relates to a kind of light source module that comprises light source, and described light source module comprises the cooling device that cools off light source base, and this light source module also comprises dichroic reflector, and wherein at least one radiator is around this dichroic reflector.This light source module comprises first radiator at least, wherein this first fin comprises a plurality of discs, these disc-shaped become have the air gap between them, disc comprises at least one opening that is used for dichroic reflector, disc radially is provided with around dichroic reflector, and wherein the air gap between the disc is oriented almost the central shaft perpendicular to light source module.Therefore, can realize that the overwhelming majority is absorbed in the disc of infrared light at radiator of the direction radiation of dichroic reflector, and because the vertical main shaft as for lamp module of the direction of disc, so disc radially is transmitted to heat the outer surface of disc.
US7175317 and US 6578991 relate to and are used for need cooling off and system and method that other parts do not need the bulb of cooling type to cool off a part.The deflector assembly is couple to bulb by reflector, only a part is cooled off.
Summary of the invention
The objective of the invention is the very effective cooling of realization to the lamp in the lighting apparatus or the projector (projector).Another object of the present invention is the temperature that the electrical connection of lamp is cooled to be lower than light-source temperature.
If at least one that produces by supply air system is forced to air stream and is further improved, this can realize by a kind of light source module that is used for lighting apparatus is provided, this light source module comprises light source, this light source is connected by light source base, this light source module comprises the cooling device that is used to cool off described light source and light source base, this light source module further comprises dichroic reflector, wherein at least one radiator is around described dichroic reflector, described radiator comprises a plurality of discs, described disc is formed in has the air gap between them, the air gap between the described disc is oriented almost the central shaft perpendicular to described light source module, described radiator is formed with the air gap, the described the air gap opening of radiator between disc of described disc formation between radiator that disc forms and described dichroic reflector.This supply air system is arranged in the lighting apparatus housing, and described supply air system connects by pipeline, and described pipeline ends at the conduit place, and described conduit is along the direction guiding air stream towards light source.
By using pipeline to connect between the physical location that is used to cool off at blowing unit and air-flow, supply air system can be worked under the situation that outlet with air suction draft unit can be positioned at colder relatively position being used for.This makes inhaled air have alap temperature.Particularly, if air-supply arrangement is arranged in the position near light source, then the temperature of the air of supply air system suction is higher relatively, can reduce the efficient of cooling system like this.Especially in lighting apparatus, the air-breathing front end that occurs in the projector can be important, because air-breathing meeting causes the further cooling to other opticses.This can be such as anti-dazzling screen, perhaps can be the colored light barrier (colour flag) that is used for changing the color of light.Air-breathing meeting causes extraneous air to enter projecting apparatus in these zones, thereby further cools off these parts.In lighting apparatus, blowing unit is also made the real space can obtain to be used to be provided with blowing unit to reach.Near the light source place, most possible is reflector, and needs the big radiator near light source and close projecting apparatus.
By using pipeline, air stream directly can be guided to the place that it is used.This will reduce the total air-flow in the lighting apparatus, thereby further reduce the noise that air-flow produces.
Preferred at least one be forced to air stream and be directed towards light source base.One of position for the cooling most critical in light source is a light source base.The temperature rising can cause the oxidation that is electrically connected in the light source base.The oxidation meeting of electric wire that is connected to light source inside is with the lost of life to 50% of light source.Therefore, if realize effectively cooling in light source base, then only this just can increase the life-span of light source greatly.The life-span that increases light source in the lighting apparatus is very important, because the light source that will change in the lighting apparatus on the operating position that is higher than stand (stage) is very complicated.Therefore the life-span that increases light source is very important.
In addition, preferably at least one is forced to air stream and is electrically connected guiding towards the light source top.Light source has different types.A kind of widely used light source has from two ends towards the electrical connection of light source itself.This may cause being electrically connected longer relatively, wherein is electrically connected to be manufactured to pass the air-tightness of glass to keep connecting.But in the light source with top bottom electrical connection, it also is very important that the top of cooling light source connects simultaneously.
In a preferred embodiment of the invention, the air stream that is forced to that both direction is relative at least is directed to light source base, and wherein the air stream that is forced to that both direction is relative at least is directed being electrically connected to the light source top.By using the more multi-direction relative air that is forced to flow, produce air turbulence on the position that can in lighting apparatus, take place to cool off.In light source base, can around light source, produce very rapid air-flow from least two different directions air-supplies.Thereby can cool off reflector inside.
Light source base can be arranged in the chamber, and wherein this chamber comprises at least two relative conduits of direction that are used to be forced to air, and described chamber comprises towards the outlet of reflector inside and the outlet of the air gap between dichroic reflector and disc-shaped radiator.From different directions air is sent into the chamber that is arranged in below the reflector, the air turbulence that can in this chamber, produce.Thereby this chamber can cause producing air turbulence in the air gap between reflector and radiator.This air turbulence can cause the more effective cooling to radiator.This is because air turbulence can flow out from the opening the radiator that disc forms.
This light source module can comprise at least one heat filter in light path, wherein this heat filter is towards the radiator reflects infrared light.Stop the light beam that has infrared light thus, otherwise can cause in other optics, in anti-dazzling screen and colored filter, produced heat.
The air gap between the disc of formation radiator comprises the ligh trap (lighttrap) of collecting infra-red radiation.Infrared light is collected in the radiator and is not radiated the light source outside by radiator is very important.By utilizing ligh trap, infrared light is understood the radiation ligh trap, and has only those infrared lights that repeatedly reflected on the inwall of disc to leave radiator.This repeatedly reflection can be reduced to acceptable level with the energy content (energycontent) of infrared light.
Be forced to air stream by conical catheter guidance almost, to increase wander about as a refugee speed when convincing pipe by patient analysis of air.By using conical catheter, can increase the speed of air, simultaneously air is flowed along in the direction set of for example light source base.If point to light source same point on every side such as two high-speed air flows, then produce air turbulence in the air streams contact part.This air turbulence increases cooling effect, mainly is the zone of reflector inside or is arranged on cooling effect in the chamber around the light source base.
Exit opening in the preferred radially pressure fan has the aperture area that dwindles, flow towards the direction of the wall of export pipeline to avoid the air edge, wherein export pipeline has the aperture area exit opening much at one of aperture area and pressure fan, and pipeline ends at the conduit place that points to light source.Reduce to produce in the pressure fan noise thus.Surprisingly, the pressure in the exit of pressure fan increases.
In another embodiment, light source module comprises light source and light source base, wherein the radiator that forms by disc of radiator is transmitted to radial direction towards this light source module outside with most heats, wherein disc is orientated almost the central shaft perpendicular to light source module, this light source module comprises the air gap between the radiator of dichroic reflector and disc formation, wherein the described the air gap between the radiator of dichroic reflector and disc formation is open to the crack air stream towards between the air between the disc, wherein this light source base is arranged in the housing, this housing is around light source base, heated air flows by the air gap of outlet between dichroic reflector and disc shaped radiator from this housing, wherein air-supply arrangement produces at least one and is forced to air stream, this air-supply arrangement produces the air stream from the lighting apparatus housing, and wherein circulation of air is crossed pipeline and leaded light is blowed along the direction towards light source.Use pipeline and conduit, air stream directly can be guided to light source and the light source base place that critical-temperature (critical temperature) occurs.
In another embodiment of the present invention, at least two air-supply arrangements produce air stream, and the speed of air-supply arrangement is regulated by adjusting device, but the speed independent regulation of air-supply arrangement wherein, and air-supply arrangement is conditioned in some time period at least, thereby with friction speed work.
By changing the speed of air-supply arrangement, air stream meets the air turbulence of locating can be very different.By changing the speed of air, reflector most amount of turbulence inner or that be arranged in the chamber below the reflector are always changing, thereby improve cooling effect.By changing the speed of air stream, avoided some regional heated situation of reducing the light source back that causes fully owing to the local air flow zone.By changing the speed of air stream, can improve cooling effect and do not increase the energy that cooling needs.
Description of drawings
Fig. 1 shows the observed light source module 2 from the place ahead.
Fig. 2 shows the observed from the side light source module 2 that is used for lighting apparatus.
Fig. 3 shows the sectional view of light source module.
Fig. 4 shows the graphics of light source module.
Fig. 5 shows the sectional view of blowing unit.
Fig. 6 shows the graphics of the identical embodiment of blowing unit.
The specific embodiment
Fig. 1 shows the observed light source module 2 from the place ahead.This light source module 2 comprises housing 4 and the infrared refleccting optical filter 8 with conical sides zone 6.In addition, show air intake 14.
Fig. 2 shows the observed from the side light source module 2 that is used for lighting apparatus.In the figure, housing 4, conical portion 6 and infrared optics filter 8 also are illustrated.In addition, show another housing 12 and the disc 10 that is used for light source base.Fig. 2 also shows the tube connector 14 that is used for air intake, and this tube connector 14 extends to the manifold (manifold) that is divided into pipeline 16 and 18.
Fig. 3 shows the sectional view of light source module 2.This light source module comprises identical as described previously parts, but shows infrared-filtered device 8 especially in the figure.Further can see radiator, disc 10 and be used for the housing 12 of light source base.Air intake 14 also is illustrated.These air intakes 14 are connected to manifold 19 towards pipeline 16 and 18.This light source module 22 have the top connect 20 and be connected light source base 25 in be connected 24.This light source base 25 is arranged in the chamber 27, and conduit 26 is illustrated in this chamber 27.Other conduit 26 is oriented towards the light source top and connects 20.Between the inside and reflector 23 of disc 10, opening 29 is shown.
In operation, the air that produces from air-supply arrangement flows through pipeline 14, further enters pipeline 16 and 18 by manifold 19, and further enters into conduit 26.These pipeline 18 guiding are arranged in the conduit 26 in the chamber 27.In this chamber 27, two air streams meet, and cause producing air turbulence in chamber 27.This is in light source base and be electrically connected 24 places at light source and produce very effective cooling.The air that flow in the chamber 27 partly is directed into reflector 23 volume inside, and part is by the opening 29 between disc 10 and the reflector 23.Arrive the outside by this dual mode, air flows by disturbance.In addition, flowing through air that pipeline 16 enters conduit 26 is oriented towards the top of reflector and connects.Air meets near the top connects 20, and this is at the reflector 23 inner air turbulences that produce.In reflector inside, the speed of this turbulent flow is further quickened, because the air of reflector inside expands owing to air themperature raises fast.Therefore, at the reflector 3 inner keen drafts that produced in addition.Thereby realized effective cooling to light source 22.
Fig. 4 shows the graphics of light source module 2, and it shows and described components identical before.
Fig. 5 shows the sectional view of blowing unit 100, and this unit comprises the rotation pressure fan 102 that is arranged in the housing 104.Outlet 106 is reduced by an insert 108, and this insert 108 will export 106 and be reduced to aperture area and conduit 110 and conduit 112 much at one.
Reducing radially, the exit opening of pressure fan makes that the air that leaves by opening 106 almost is a Laminar Flow.This is very simple, almost tangentially leaves because leave the air of the air-supply wheel 102 of rotation.This insert 108 produces a kind of state, that is, the air overwhelming majority that wherein flows through outlet 106 is along towards the direction of conduit 112.This has reduced the noise of generation in blowing unit 100.But be that it has also caused simultaneously having higher pressure in the exit unexpectedly.
Fig. 6 shows the graphics of the same embodiment of blowing unit shown in Figure 5 100, but illustrates in the mode of opening picture (open picture) now.
Claims (12)
1. light source module (2) that is used for lighting apparatus, it comprises light source (22), this light source (22) is connected by light source base (25), this light source module (2) comprises the cooling device that is used to cool off described light source (22) and light source base (25), this light source module (2) further comprises dichroic reflector (23), wherein at least one radiator is around described dichroic reflector (23), described radiator comprises a plurality of discs (10), described disc (10) is formed in has the air gap between them, the air gap between the described disc (10) is oriented almost the central shaft perpendicular to described light source module (2), described radiator is formed with the air gap between radiator that disc forms and described dichroic reflector (23), the described the air gap opening of radiator between disc (10) that described disc forms, it is characterized in that: produce at least one by supply air system and be forced to air stream, this supply air system is positioned at the lighting apparatus housing, this supply air system is by at least one pipeline (14,16,18) be connected, described pipeline (14,16,18) locate to stop at conduit (26), described conduit (26) is along the direction guiding air stream towards light source (22).
2. light source module as claimed in claim 1 is characterized in that: described at least one be forced to air stream and guided towards described light source base (25).
3. light source module as claimed in claim 1 is characterized in that: described at least one be forced to air stream and be electrically connected (20) guiding towards the light source top.
4. light source module as claimed in claim 3, it is characterized in that: the air stream that is forced to that described both direction at least is relative is guided towards described light source base (25), and wherein the air stream that is forced to that both direction is relative at least is electrically connected (20) guiding towards the light source top.
5. light source module as claimed in claim 2, it is characterized in that: described light source base (25) is arranged in a chamber (27), this chamber (27) comprises the relative conduit (26) of both direction at least that is used to be forced to air, and described chamber (27) comprise the outlet of leading to described reflector (23) inside and being positioned at the air gap (29) between described dichroic reflector (23) and the disc shaped radiator.
6. as the described light source module of claim 1-5, it is characterized in that: described light source module comprises at least one heat filter (8) in light path, and this heat filter (8) is towards described radiator reflects infrared light.
7. as the described light source module of claim 1-5, it is characterized in that: the described the air gap that forms between the disc (10) of described radiator comprises the ligh trap that is used to collect infra-red radiation.
8. as the described light source module of claim 1-5, it is characterized in that: the described air stream of being forced to is by conical catheter guidance almost, thereby improves the speed that air stream leaves described conduit.
9. a generation is used to cool off the method for at least one air stream of light source, radially producing air stream in the pressure fan (100) by this method, described pressure fan (100) comprises rotary fan (102), wherein this fan (102) produces almost tangent with rotary fan (102) air stream, it is characterized in that: the exit opening (106) in the described radially pressure fan has the aperture area that dwindles, to avoid air on the direction of the wall of export pipeline, flowing, wherein said export pipeline (110) has aperture area (106) exit opening much at one of aperture area and described radially pressure fan, and wherein said export pipeline (110) ends at towards the conduit (112) of described light source (22) and locates.
10. method by air stream cooling light source module, wherein light source module (2) comprises described light source (22) and light source base (25), wherein the radiator that forms by disc of radiator is transmitted to radial direction towards described light source module outside with most heats, wherein disc (10) is orientated almost the central shaft perpendicular to light source module (2), wherein said light source module (2) comprises the air gap (29) between the radiator that is positioned at dichroic reflector (23) and disc formation, described the air gap (29) between the radiator that wherein said dichroic reflector and disc form is open to the air stream of the air gap between described disc (10), wherein said light source base (25) is arranged in a housing, this housing is around described light source base (25), heated air flows by the air gap (29) of outlet between described dichroic reflector and described disc shaped radiator from this housing, it is characterized in that: air-supply arrangement (100) produces at least one and is forced to air stream, this air-supply arrangement produces the air stream from described lighting apparatus housing, pipeline (14 is crossed in this circulation of air, 16,18) and conduit (26) along being blowed towards the direction of light source (22).
11. the method by air stream cooling light source module as claimed in claim 10, it is characterized in that: the air that direction is opposite flows the electrical connection (20 towards light source (22), 24) be directed, around the electrical connection (22,24) of this light source (22), to produce air turbulence.
12. the method by air stream cooling light source module as claimed in claim 10, it is characterized in that: at least two air-supply arrangements produce air stream, the speed of wherein said air-supply arrangement is conditioned by adjusting device, the speed independent regulation of wherein said air-supply arrangement, wherein said air-supply arrangement is conditioned in some time period at least, thereby with friction speed work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101314814A CN101435554B (en) | 2008-06-10 | 2008-06-10 | Light source module for illumination equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101314814A CN101435554B (en) | 2008-06-10 | 2008-06-10 | Light source module for illumination equipment |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100545245A Division CN102155731B (en) | 2008-06-10 | 2008-06-10 | Light source module for illumination equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101435554A true CN101435554A (en) | 2009-05-20 |
| CN101435554B CN101435554B (en) | 2011-05-11 |
Family
ID=40710126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101314814A Active CN101435554B (en) | 2008-06-10 | 2008-06-10 | Light source module for illumination equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101435554B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087840A (en) * | 2017-12-11 | 2018-05-29 | 上海小糸车灯有限公司 | Cooling system and car light |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3806236A (en) * | 1972-02-28 | 1974-04-23 | Gen Electric | High intensity projection lamp assembly with heat shield |
| GB2068524A (en) * | 1980-01-29 | 1981-08-12 | Oilfield Inspection Services | Inspection lamp with forced air cooling system |
| JP2000352762A (en) * | 1999-06-14 | 2000-12-19 | Matsushita Electric Ind Co Ltd | Light source device and projector using the same |
| DE602005024127D1 (en) * | 2004-04-02 | 2010-11-25 | Martin Professional As | LIGHT SOURCE MODULE |
-
2008
- 2008-06-10 CN CN2008101314814A patent/CN101435554B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087840A (en) * | 2017-12-11 | 2018-05-29 | 上海小糸车灯有限公司 | Cooling system and car light |
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| Publication number | Publication date |
|---|---|
| CN101435554B (en) | 2011-05-11 |
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Address after: Aarhus Patentee after: Haman professional Denmark Corporation Address before: Aarhus Patentee before: Martin Professional AS |