CN101498430B - Electric switch device, in particular signal lights - Google Patents

Electric switch device, in particular signal lights Download PDF

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Publication number
CN101498430B
CN101498430B CN2009100037467A CN200910003746A CN101498430B CN 101498430 B CN101498430 B CN 101498430B CN 2009100037467 A CN2009100037467 A CN 2009100037467A CN 200910003746 A CN200910003746 A CN 200910003746A CN 101498430 B CN101498430 B CN 101498430B
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CN
China
Prior art keywords
conductor plate
housing
light
signal lamp
emitting device
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Expired - Fee Related
Application number
CN2009100037467A
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Chinese (zh)
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CN101498430A (en
Inventor
N·V·D·利佩
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FHF Funke and Huster Fernsig GmbH
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FHF Funke and Huster Fernsig GmbH
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00Safety devices structurally associated with lighting devices
    • F21V25/12Flameproof or explosion-proof arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2107/00Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/30Light sources with three-dimensionally disposed light-generating elements on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Structure Of Printed Boards (AREA)
  • Led Device Packages (AREA)

Abstract

The invention relates to an electrical circuit device, in particular to an electrical signal circuit device, preferably signal lamps, having at least one electrical component (3) arranged on a conductor plate (4), in particular a light-emitting device (3). According to the invention, the conductor plate (4) is made of heat conduction materials.

Description

Electric circuit device, especially signal lamp
Technical field
The present invention relates to a kind of interior electric circuit device in zone that is applied in explosion danger, especially electric signal circuit device, signal lamp preferably, it has at least one and is arranged on electric component on the conductor plate, especially light-emitting device, wherein said conductor plate is made by Heat Conduction Material.Wherein said light-emitting device is LED preferably.
Background technology
Signal lamp is used to produce one or more optical signals usually, and these optical signals are used for providing caution under situations such as some danger, emergency.For example when mechanical disorder, adopted and be used to the signal lamp notifying and alarm.Signal lamp equally also can perform well in the indicating emergency passage or be used for the display plane advertisement.
In the signal lamp described in DE10239347A1, adopt beacon, be characterized in having the conductor plate of cylindrical shape, be provided with each controlled light-emitting component thereon.Described conductor plate is to have flexible film, can be coated with transparent material in its outside.
But in the time of in the housing that light-emitting device integral body is encased in signal lamp, under the situation of application-specific, may produce the problem of heat radiation.For the signal lamp that in the zone of explosion danger is arranged, uses, promptly so-called explosive-proof protector signal lamp, especially like this.Because such lamp often is provided with the withstand voltage packaging protection of housing, thereby the heat radiation of the loss heat that produces in housing of light-emitting device becomes a problem.
For the whole housing of signal lamp this that yes is blanket because the most of high light intensity that light-emitting device sent always can cause the loss heat to raise.This loss heat can make the temperature of enclosure interior (no matter whether it is encapsulated withstand voltagely) raise with respect to ambient temperature.
Because the rising of case temperature may go wrong when using signal lamp or whole electric circuit device in the zone of explosion danger is arranged.Because what may have that the regional area of housing is subjected to adds the much higher risk in other zone of ratio of specific heat.When adopting signal lamp under the explosive-proof protector occasion, the effect of this being called as " focus " on equipment surface does not wish to occur.
May become incendiary source the surf zone of this heat or " focus " environmental gas in the zone that explosion danger is arranged.The situation that this is not only applicable to specific admixture of gas or inflammable gas occurs, and be applicable to for example combustible dust when handling powder.What need in this case to consider is: distance given between corresponding thermal source and surface is more little, then because the local heat that heat radiation and convection current produced is just high more.That is to say, under the very little situation of the distance between thermal source and the surface, so-called " focus " may occur, and it is insufficient surperficial heat radiation to occur.
In addition, also can cause other insupportable situation because case temperature raises with respect to ambient temperature, be very disadvantageous under the very high situation of air humidity especially, and promptly moisture finally can penetrate into housing, perhaps condenses into more steam.When no longer working, signal lamp tends to occur this situation.Always can be created in the very significant temperature difference of certain part between signal lamp and external environment, and cause pressure reduction thus, this may cause described negative effect.
In the prior art according to GB2438467A, each conductor plate has position light-emitting device thereon, and each LED is set on the cooling block.Thereby obtain a kind of structure that can outwards dispel the heat, but its applicability is very limited.The present invention here makes improvements on the whole.
The technical problem to be solved in the present invention is, develop a kind of electric circuit device that structure type is stated in the place that begins, signal lamp preferably, make that the temperature difference between signal lamp or respective housings and the external environment and the pressure reduction that brings thus are as much as possible little, wherein also should avoid the appearance of " focus ".
This technical problem that proposes in order to solve, a kind of electric circuit device that meets purpose that is used for use in the zone of explosion danger is arranged is provided, especially signal lamp, conductor plate is supported by an enclosure member of being made by Heat Conduction Material equally, wherein this enclosure member is configured to two parts basically, i.e. internals leg and an internals head that supports described conductor plate, and wherein in order to improve radiating effect, described internals head is designed to ducted body, and described internals leg joins in this ducted body so that it is fixed.
Wherein within the scope of the present invention, the material with (well) thermal conductivity typically refers to the material that (very high) thermal conductivity surpasses 20W/ (mK).Especially the thermal conductivity of the main material that is adopted even surpass 100W/ (mK) preferably adopts the material that has above the thermal conductivity of 200W/ (mK).This thermal conductivity numerical value often could be realized by good heat conductor, in most of the cases realizes by metal.Wherein light metal is preferably adopted in the present invention's suggestion, and promptly density is at 5g/cm 3Following metal.
In this case, the manufactured materials of conductor plate especially is fit to adopt the metal such as aluminium or aluminium alloy.Also can adopt copper in theory or such as the alloy of brass, but they no longer have been the light metals on the top described meaning, it is only as a kind of possible selection.
For the conductor plate insulation that makes light-emitting device and contact thereof and made by metal material, related metallic conductor plate is laid with insulating barrier in light-emitting device one side.In addition, can also lay the copper thickener on conductor plate, it is formed for the electrically contacting and be connected of necessity of light-emitting device on conductor plate, and provides prerequisite for required (automatically) welding process of mounting light emitting device on conductor plate.In fact described light-emitting device is light emitting diode (LED) preferably, and especially adopts the light emitting diode of SMD technology (SMD=surface erection unit), i.e. SMD-LED.
That is to say that related light emitting diode is set on the surface of conductor plate, and form contact here, and for example do not have conductive pin to pass described conductor plate.The copper thickener that is wherein laid is used for realizing the contact and the control thereof of light-emitting device.Equally, the insulating barrier that upside had at conductor plate has necessary resistance.
Wherein, this structure is usually designed to and makes the conductor plate made by metal or aluminium at first carry described insulating barrier or separation layer and lay thereon copper thickener in light-emitting device one side, is installed in lip-deep light-emitting device in the carrying of one side then.Conductor plate has advantage ground at it and is connected with an enclosure interior member on side of light-emitting device or surface, perhaps supported by this enclosure interior member.
By this enclosure interior member of making by Heat Conduction Material equally, guaranteed directly to be discharged on the enclosure interior member that is similarly metal via the heat conduction by the metallic conductor plate at the loss heat that may occur by the light-emitting device generation light time.For not adopting light-emitting device but be provided with on the related metallic conductor plate other electric the situation of corresponding electronic building brick, for example adopt may situation as the loudspeaker of signal loudspeaker under, this obviously also can correspondingly be suitable for.In all cases, according to the present invention, the inevitable loss heat that is sent by related electric corresponding electronic building brick is directly transferred to described enclosure interior member by described metallic conductor plate, and finally is transmitted to housing.
Realized unobstructed heat radiation so on the whole, and the heat of having realized being produced by thermal source or electrical/electronic element is in big lip-deep efficient heat distribution.Thereby avoided the generation of previous " focus " mentioned for above-mentioned reasons.
Because described enclosure interior member has relatively large surface area, it thereby be used as cooler.For the situation that related enclosure interior member links to each other with housing, the heat conduction still can improve.Because a big chunk of housing equally also is made of metal usually, thereby heat also is discharged into housing by the enclosure interior member via heat conduction in this case, and from housing by the heat radiation that is associated with outside air and thermal convection current to external diffusion.
Wherein process enclosure interior member and housing together with the material or the metal of conductor plate, they have similar or identical heat conductivility, thereby guarantee unescapable hot-fluid.Here shown that aluminium is suitable as common rapidoprint.
Wherein the hot-fluid that forms by the conduction of the heat between metallic conductor plate and the enclosure interior member that is made of metal equally is also supported or present by following manner, promptly lays the heat-conducting cream of high thermal conductivity between conductor plate and enclosure interior member.In all cases, conductor plate always forms thermally coupled with the enclosure interior member, and and then form thermally coupled with housing, thereby can see that hot-fluid does not interruptedly finally flow to housing from light-emitting device via conductor plate, enclosure interior member.Wherein surface area increases constantly, makes heat can have advantage ground and discharges to outside air from each single parts by heat radiation and convection current, and conduct to housing from conductor plate more and more.
The enclosure interior member often is connected with housing (heat) by the internals leg.The internals head that is configured to ducted body may have polygonal moulding, i.e. triangle, quadrangle, pentagon, hexagon etc. preferably.This polygonal shape provides the stationary plane that is used for a plurality of conductor plates with having advantage on its lateral surface.
The head of internals described in the reality often is designed to hexagonal hollow prism, promptly has the shape of approximate hollow cylinder in inside, and has hexagonal moulding at its outer surface.Can a conductor plate with corresponding light-emitting device be set respectively on each lateral surface in six lateral surface like this, make all light-emitting devices with 360 ° lighting angle altogether without a doubt to external diffusion.The lighting angle of the LED that is adopted is generally 30 ° to 90 ° even bigger.That is to say that a plurality of conductor plates spatially are arranged as usually realizes the emission of circumference light, promptly with 360 ° angle to external diffusion, this has special significance for most of signal lamps.
In order to improve heat radiation, advise that also the internals head that is designed to hollow or hollow cylindrical is arranged in the contact pin of internals leg at last, perhaps described internals leg arrives in the described internals head by this tab engages.Like this, the internals head can be installed together with the internals leg at an easy rate, promptly for example can realize like this: described internals head has groove, when described internals head was inserted on the described internals leg, described contact pin was fitted in the described groove on the internals head.In addition, the hollow structure by the internals head provides very big on the whole surface area, and heat can be at an easy rate internally component head further conduct to the internals leg.
As a result, electric circuit device provides each especially signal lamp, because the heat radiation of described and special design, they are particularly suitable for being applied in the zone of explosion danger.The loss heat that exists inevitably in enclosure interior is because electrical/electronic components or light-emitting device and derived apace, and discharges to external environment on direction of heat flow by the surface area that strengthens usually.Thus, the result has not only avoided the appearance of previously described " focus ", can surpass a lot of level of ambient temperature but also the temperature of housing is not reduced to, for example is no more than about 60 ℃.In most of the cases the temperature of housing even can further reduce for example is lower than 50 ℃.
The temperature difference that this skin temperature is compared with ambient temperature reduces and possibility that the defective of " focus " occurs reduces and can avoid making the inflammable gas or the dust that may exist under external environment to blast.Therefore described circuit arrangement is particularly suitable for being applied in the zone of explosion danger.In addition, housing reduces to cause further to have stoped in inside with respect to the temperature difference of external environment and forms moisture or moisture owing to pressure reduction penetrates into inside.This has improved the service life and the functional safety of described electric circuit device on the whole.
The present invention mainly realizes above-mentioned purpose by following means: electric or electronic building brick on the conductor plate or light-emitting device are installed on the conductor plate of being made by Heat Conduction Material, especially are installed on the metallic conductor plate.Described conductor plate further is transmitted to the heat that is produced on the enclosure interior member of the enclosure interior member of same good heat conductive or metal from its side.Therefrom can obtain main advantage.
Description of drawings
Set forth the present invention in more detail by the accompanying drawing that only shows an embodiment below; As shown in the figure:
Fig. 1 schematically shows the electric circuit device according to signal lamp form of the present invention,
Fig. 2 shows the corresponding enclosure interior member with Fig. 1 with side view, and
Fig. 3 shows according to the vertical view on the directions X of the enclosure interior member of Fig. 2.
The specific embodiment
Show the electric circuit device of a signal lamp form in the drawings, it has a housing 1.Have in housing 1 inside and to be positioned at corresponding electronic building brick 3 electric on the conductor plate 4.In this scope of embodiments, related assembly 3 is implemented as light-emitting device 3.Described housing 1 is designed to two parts basically, i.e. a housing leg 1a and a more or less transparent housing head 1b.Described transparent housing head 1b has guaranteed can bear required signal or alarm function from the light that light-emitting device 3 shines in the housing 1, describes as the beginning place.That is to say that in described electric circuit device, it is an electric signal circuit device, the signal lamp of preferably drawing in detail in the drawings here.
Specifically, light-emitting device 3 is installed on the conductor plate 4.According to the present invention, conductor plate 4 is made by the material of heat conduction, and the rapidoprint that promptly adopts thermal conductivity to surpass 20W/ (mK) is made.Usually adopt the conductor plate 4 of metal, conductor plate preferably made of aluminum, promptly the aluminum conductor plate 4.
Adopted a plurality of light emitting diodes of spatially arranging 3 as light-emitting device 3, and these LED preferably adopt the SMD technology.Wherein light-emitting device 3 is with respect to the rounded arrangement of central shaft A of housing 1, and with it relatively, housing 1 is embodied as the rotation symmetry.In this way, the light that is sent by LED or light-emitting device 3 sends on all direction in spaces, like this, by linking to each other with the transparent shell head 1b of housing 1, has guaranteed the emission of circumference light.
Preferably discern detailed structure by the sectional view that amplifies among Fig. 3.Can recognize at first that thus conductor plate 4 is supported by an enclosure interior member 5, and thermally coupled with it, this also will further specify below.Being connected with related enclosure interior member 5 of conductor plate 4 itself towards the surface of light-emitting device 3, and the centre is connected with heat-conducting cream 6 or materials similar or fluid, to reduce the heat transmission obstruction between conductor plate 4 and the enclosure interior member 5.As to the substituting or replenishing of heat-conducting cream 6, conductor plate 4 can also have copper coating or other coating that can conduct heat at it on the surface of enclosure interior member 5.But this does not illustrate.
Below the structure towards the surface of light-emitting device 3 of conductor plate 4 will be described by Fig. 3.At first, conductor plate 4 is in light-emitting device one side or be laid with insulating barrier 7 on the surface of light-emitting device 3, and it is used for necessary electric insulation, makes electric current be transmitted to light-emitting device 3 like that and is conducted from light-emitting device 3 with conductor plate 4 is similar avoiding.Described insulating barrier 7 can be enamelled coating, powder coating, plastic coating etc.And then copper coating 8 or more upper conductive coating 8 are provided on the direction of light-emitting device 3, and it provides required feed and contact for corresponding light-emitting device 3.
Wherein light-emitting device 3 is set directly on this conductive coating or the copper coating 8.The welding of in addition, being laid on conductive coating or copper coating 8 stops enamelled coating 9 and is used for alternatively in welding process realization light-emitting device 3 and the contact of conductive coating or copper coating 8 one sides or the welding of the no blemishes between the conducting wire automatically.This only is a kind of option certainly.
What play decisive role is that the loss heat relevant with light-emitting device 3 generation light directly is transmitted on the enclosure interior member 5 by heat-conducting cream 6 via the heat conduction from the conductor plate 4 of metal.Because enclosure interior member 5 had relatively large surface area as depicted in figs. 1 and 2, the loss heat that is produced can be without a doubt by big surface to external diffusion, perhaps be delivered in ambient air or the outside air by convection current.Wherein optimize hot-fluid like this: make enclosure interior member 5 and housing 1 thermally coupled for example to be screwed in together with it.Like this, further increase cooling surface area, promptly adopted the form of the housing leg 1a that is made of metal.In order to produce uniform hot-fluid, enclosure interior member 5 equally can be common made of aluminum as housing 1.
By comparatively observing Fig. 1 and Fig. 2, can see that enclosure interior member 5 is designed to two parts altogether, i.e. an internals leg 5a and an internals head 5b, they are supporting corresponding conductor plate 4 or a plurality of conductor plate 4.In this scope of embodiments, and be nonrestrictive, the cross section of internals head 5b is designed to have respectively the polygonal of lateral surface 10, and each lateral surface is carried a conductor plate 4 respectively.Each conductor plate 4 is screwed onto on the respective lateral surface of internals head 5b by screw 11 respectively in the reality.In the above and below of screw 11 light-emitting device 3 is arranged respectively.
Conductor plate 4 is lying on the lateral surface 10 under connecting in the middle of the heat-conducting cream 6 respectively, and wherein light-emitting device 3 is preferably on the direction of an A and vertically arranges, but this is not compulsory.
In addition, can see that by Fig. 3 internals head 5b is designed to ducted body, internals leg 5a joins in this ducted body.For this reason, internals leg 5a has a contact pin 12 in head one side, and this contact pin is fitted in the corresponding groove of internals head 5b, and perhaps internals head 5b is inserted on the respective tabs 12 of internals leg 5a, has so just simplified installation.In addition, also provide thermally coupled or heat contact required between internals head 5b and the internals leg 5a thus.
Light-emitting device 3 or LED can be designed to monochromatic or polychrome.Obviously, the present invention also can adopt white light LEDs.Be chosen as Huang, red, green and/or blue by color, can avoid single in the color of this position housing head 1b or transparent cover with LED.Thereby can meet the destination and strengthen semiotic function with a kind of corresponding color or multiple color.
In addition, within the scope of the present invention, corresponding metal conductor plate 4 and/or enclosure interior member 5 and/or housing 1 are cooled off cmpletely.This can realize by means of Sai Beike (Peltier) device.Thus, each conductor plate 4 is touched by means of plug 14, and has the structure of special simplification.The housing leg 5a of enclosure interior member 5 not only is used for heat conduction and heat radiation, but also is used to compile and guide the feed line 15 that is used for light-emitting device 3 by way of parenthesis.After inserting internals head 5b, plug 14 has formed required electrical connection.

Claims (8)

  1. One kind be applied in explosion danger the zone in electric signal lamp, it has the electric light-emitting device (3) that is arranged in bipartite housing (1) and at least one the described housing on the conductor plate (4), described housing has the housing leg (1a) that is made of metal and transparent housing head (1b), wherein
    -described conductor plate (4) is made by Heat Conduction Material,
    -described conductor plate (4) is supported by an enclosure interior member (5) of being made by Heat Conduction Material equally,
    -described enclosure interior member (5) and described housing leg (1a) thermally coupled,
    -this enclosure interior member (5) is configured to two parts, and promptly an internals leg (5a) and one support the internals head (5b) of described conductor plate (4), and wherein
    -in order to improve radiating effect, described internals head (5b) is designed to ducted body, and described internals leg (5a) joins in this ducted body so that it is fixed.
  2. 2. electric signal lamp according to claim 1 is characterized in that, the thermal conductivity of described conductor plate (4) surpasses 20W/ (mK).
  3. 3. electric signal lamp according to claim 2 is characterized in that, the thermal conductivity of described conductor plate (4) surpasses 100W/ (mK).
  4. 4. electric signal lamp according to claim 3 is characterized in that, the thermal conductivity of described conductor plate (4) surpasses 200W/ (mK).
  5. 5. according to each described electric signal lamp in the claim 1 to 4, it is characterized in that described conductor plate (4) is made of metal, be laid with insulating barrier (7) in light-emitting device one side.
  6. 6. electric signal lamp according to claim 5 is characterized in that, the metal that is used to make described conductor plate (4) is that density is at 5g/cm 3Following light metal.
  7. 7. according to each described electric signal lamp in the claim 1 to 4, it is characterized in that described conductor plate (4) and housing (1) thermally coupled.
  8. 8. according to each described electric signal lamp in the claim 1 to 4, it is characterized in that, realize a plurality of conductor plates (4) with corresponding light-emitting device (3), it has the space rounded on the whole with respect to the central shaft of housing (1) (A) and arranges.
CN2009100037467A 2008-02-01 2009-02-01 Electric switch device, in particular signal lights Expired - Fee Related CN101498430B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08001891.4 2008-02-01
EP08001891A EP2085692B1 (en) 2008-02-01 2008-02-01 Electric switch device, in particular signal lights

Publications (2)

Publication Number Publication Date
CN101498430A CN101498430A (en) 2009-08-05
CN101498430B true CN101498430B (en) 2011-04-13

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Country Status (6)

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EP (1) EP2085692B1 (en)
CN (1) CN101498430B (en)
AT (1) ATE501399T1 (en)
DE (1) DE502008002804D1 (en)
EA (1) EA016630B1 (en)
ES (1) ES2360260T3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010017460B4 (en) * 2010-06-18 2013-05-08 R. Stahl Schaltgeräte GmbH Explosion-proof light source

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2159521C1 (en) * 1999-06-08 2000-11-20 Казанский государственный технический университет им. А.Н. Туполева Method for manufacturing of printed circuit board
WO2002031794A1 (en) * 2000-10-10 2002-04-18 Lee Gye Seon Led lamp for signal light
DE10059844A1 (en) * 2000-11-30 2002-06-13 Karl Kapfer Multiple warning light for emitting different colored signal lights has sources of different type distributed so each different colored signal light is emitted through whole transparent region
EP1393374B1 (en) * 2001-05-26 2016-08-24 GE Lighting Solutions, LLC High power led lamp for spot illumination
DE10239347A1 (en) 2002-08-28 2004-03-18 Fhf Funke + Huster Fernsig Gmbh Signal lamp for indicating or warning of fault on machinery, flight path indication etc. contains enclosing flexible circuit board with individually energized luminescent elements, e.g. LEDs or organic LEDs (OLEDs)
DE20314298U1 (en) * 2003-09-12 2003-11-20 Para Light Electronics Co LED assembly has several circuit boards each with several mountings for LEDs, each circuit board being mounted on baseboard with electric connections
EP1706666A4 (en) * 2003-12-16 2007-03-28 1662801 Ontario Inc Lighting assembly, heat sink and heat recovery system therefor
RU2251050C1 (en) * 2003-12-17 2005-04-27 Сысун Виктор Викторович Illumination explosion-proof device on base of light emitting diodes
NL1029583C2 (en) * 2005-07-21 2007-01-25 Imt B V Explosion-proof fixture.
US8029162B2 (en) * 2006-05-03 2011-10-04 Dialight Corporation Embedded LED light source
EP2808597B1 (en) * 2006-05-04 2017-10-04 Brasscorp Limited Work light
GB2438467B (en) 2006-05-25 2010-12-29 Blue Sky Access Ltd A crimping tool for use on a metal roof panel

Also Published As

Publication number Publication date
ES2360260T3 (en) 2011-06-02
EA016630B1 (en) 2012-06-29
EA200900104A1 (en) 2009-08-28
EP2085692A1 (en) 2009-08-05
DE502008002804D1 (en) 2011-04-21
EP2085692B1 (en) 2011-03-09
CN101498430A (en) 2009-08-05
ATE501399T1 (en) 2011-03-15

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