EP2317211A2 - External light and high pressure light replacement - Google Patents
External light and high pressure light replacement Download PDFInfo
- Publication number
- EP2317211A2 EP2317211A2 EP10186977A EP10186977A EP2317211A2 EP 2317211 A2 EP2317211 A2 EP 2317211A2 EP 10186977 A EP10186977 A EP 10186977A EP 10186977 A EP10186977 A EP 10186977A EP 2317211 A2 EP2317211 A2 EP 2317211A2
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- EP
- European Patent Office
- Prior art keywords
- carrier
- heat
- outdoor
- led arrays
- pressure lamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/08—Lighting devices intended for fixed installation with a standard
- F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
- F21S8/088—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device mounted on top of the standard, e.g. for pedestrian zones
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
- F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/51—Cooling arrangements using condensation or evaporation of a fluid, e.g. heat pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
- F21V29/717—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements using split or remote units thermally interconnected, e.g. by thermally conductive bars or heat pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/02—Refractors for light sources of prismatic shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
- F21V5/046—Refractors for light sources of lens shape the lens having a rotationally symmetrical shape about an axis for transmitting light in a direction mainly perpendicular to this axis, e.g. ring or annular lens with light source disposed inside the ring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING 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
- F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
- F21Y2107/30—Light 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING 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
- F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
- F21Y2107/40—Light sources with three-dimensionally disposed light-generating elements on the sides of polyhedrons, e.g. cubes or pyramids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING 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
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Definitions
- the invention relates to an outdoor lamp for illuminating traffic routes, sidewalks, squares, buildings, outdoor facilities and the like according to a selected lighting profile, comprising an at least partially translucent housing and a lamp disposed within the housing.
- the invention further relates to a high-pressure lamp replacement.
- the lamp has a housing and a light source.
- the bulb is a high pressure lamp.
- Such high-pressure lamps are, for example, high-pressure sodium vapor lamps.
- a high-pressure sodium vapor lamp consists of a glass body in which a gas discharge is triggered. Due to the high pressure, the gas not only shines on the resonance transitions of sodium, but broadband in a wide spectral range. According to the usually elongated glass body, the high-pressure lamp illuminates from an elongated area with high luminance in all directions. For typical high-pressure sodium vapor lamps, a high light output of 150 lumens per watt (Im / W) is specified.
- the well-known high-pressure lamps shine practically in all directions. In outdoor lighting, however, usually a certain lighting profile is desired. So streets or sidewalks are to be heavily illuminated, while upward radiation is often undesirable. Also, a radiation in the longitudinal direction of the road, for example, rather desirable than across the street. Depending on the application, a corresponding lighting profile is created.
- the illumination profile is in the state of the art DE 10 2005 047 746 A1 known arrangement achieved by a cylindrical, translucent anti-glare body is arranged around the lamp around. The anti-glare body is profiled in a zigzag shape, so that the radiation of the illuminant, which strikes the anti-glare body, is deflected in a desired direction.
- the radiation is deflected substantially downwards.
- an auxiliary diaphragm of a plurality of prisms is further arranged. This subpanel blends selected angular areas, such as in the direction of buildings.
- the radiation is deflected into desired angular ranges. It is also known to redirect radiation by means of reflectors. In the deflection and reflection occur unwanted transmission and reflection losses.
- High-pressure lamps have the disadvantage that they are maintenance-intensive and radiate in a limited spectral range.
- the lamps are also only partially dimmable and switchable only with delay. When power is interrupted, the gas discharge after cooling only takes place again when a temperature threshold is reached, for example after about ten minutes.
- EP 1 528 315 B1 describes a lighting device with a device for heat dissipation in the form of a heat pipe.
- EP 1 916 467 A1 discloses an LED lamp which is used as a street lamp.
- the plurality of LED diodes are individually connected to heat pipes, which in turn are cooled by a heat sink.
- EP 1 933 085 A1 discloses an LED cluster light. Each of the LED clusters is connected to a heat dissipation.
- EP 1 970 967 A1 discloses an arrangement in which a plurality of LEDs are arranged on a common die as a package.
- EP 2 091 079 A1 shows an outdoor lamp with diodes as the light source.
- the diodes are cooled by means of a heat conductor.
- the invention makes use of the insight that an illumination profile can be realized, at least in large parts, if instead of a non-directionally radiating high-pressure lamp LED arrangements are used which radiate into a selected angular range.
- the luminance of a high pressure lamp is achieved when LED arrays are used with a variety of LEDs that use a common heat dissipation system. LEDs develop considerable heat during operation, which pollutes the luminaire construction as well as the LEDs themselves. A heat dissipation system allows the use of many LEDs without reaching the maximum load temperature.
- the use of LEDs reduces energy consumption. LEDs have a longer life. The lamps have correspondingly longer maintenance intervals. Depending on the ambient conditions, LEDs can dimmed when full power is not required or switched arbitrarily. This can also reduce energy consumption.
- the LED arrays are formed by linear multichips.
- Such linear multichips comprise a plurality of LEDs on a common carrier with common terminals.
- Such multichips are well known.
- the luminance, the emitted spectrum and the geometry of the LED array can be selected such that the illumination profile is realized.
- multiple LED multichips are mounted on the common carrier.
- the longitudinal axis of which extends in the vertical direction a radiation characteristic comparable to that of high-pressure lamps of a linear burner is achieved, which however only radiates in a limited angular range.
- the heat removal system comprises a heat pipe.
- a heat pipe is a heat exchanger with a particularly low thermal resistance.
- an evaporable liquid such as water.
- the water is vaporized at the side facing the LEDs.
- the steam condenses on the "cold" side facing away from the LEDs and flows back to the evaporation point due to the capillary effect. It has been found that the heat dissipation of a heat pipe is sufficient even for a large number of LEDs, which is required in an outdoor lamp according to the invention.
- a heat sink can also be coupled to the carrier, via which the resulting heat is dissipated.
- the heat pipe is guided within the carrier and the carrier consists of good heat-conducting material. Then the heat is dissipated evenly by all LEDs.
- the heat pipe protrudes at least one place out of the carrier and there transfers the heat to the environment or to a heat sink.
- the carrier is an elongate body with flat surfaces whose surface normals point in directions corresponding to the selected illumination profile.
- the LED assemblies can be attached.
- the terminals and cables for the LED arrays can be routed outside the carrier. However, the terminals and cables for the LED arrangements can also be guided through a cavity in the interior of the carrier.
- the carrier may be formed in particular prismatic or truncated pyramidal.
- a prismatic beam has the same cross-sectional profile over its entire height.
- An example of a prismatic carrier is a cube or cuboid.
- the surface normals of the planar surfaces are in a horizontal direction.
- the cross section of the carrier can be designed such that the flat surfaces form angles other than 90 ° with each other, so that the radiation takes place in preferred directions.
- a truncated pyramidal support may be used instead of a prismatic one.
- the flat surfaces are slightly inclined downwards. As a result, unwanted radiation in the upper half space is avoided. It is understood that a combination of these variants or even curved surfaces are possible if the selected lighting profile requires it.
- the outdoor light enables targeted light control by suitable positioning and alignment of the LED arrays.
- additional, light-directing optical components such as prisms, mirrors or fins, by which the illuminance is reduced, not mandatory. It is understood, however, that such components can also be used in addition.
- a anti-dazzle device may be formed substantially cylindrical and be provided in the circumferential direction with a prismatic zigzag profile.
- the zigzag profile may have an uneven distribution of the prism size according to the selected illumination profile.
- the anti-dazzle device can be provided with cylindrical lenses whose axes of curvature are in Extend longitudinally.
- the cylindrical lenses are preferably formed on the inside of the anti-dazzle device.
- the prismatic zigzag profile on the outside.
- the object is achieved in existing lights in particular by a corresponding to the above bulbs high-pressure lamp replacement, which is characterized by a carrier with a connection of a high-pressure lamp corresponding electrical and mechanical connection.
- a luminous means makes it possible to replace high-pressure lamps by lamps with LED arrangements on a support with a heat removal system. Existing outdoor lights must therefore not be converted, but it is rather the bulb replaced.
- FIG. 1 shows a generally designated 10 outdoor light.
- the outdoor lamp 10 is seated on a mast, the upper end 12 is shown. It is understood that the outdoor light can also be attached hanging or otherwise.
- On the pole end 12 sits a housing with a housing cap 16 and a transparent, cylindrical wall 18.
- the outdoor lamp is used to illuminate traffic routes, such as streets, squares or bike paths and side walkways.
- an end baffle 14 made of polycarbonate is arranged in the housing.
- a screening device 14 is mentioned in the opening paragraph DE 10 2005 047 746 A1 described in detail and therefore need not be explained in detail.
- the anti-dazzle device 14 is substantially cylindrical and provided with a circumferentially prismatic zigzag profile. The profile causes upward radiation to be totally reflected downwards or refracted. Cylindrical lenses on the inside of the anti-dazzle device distort emitted light so that glare is avoided.
- the lighting means 20 is in the FIGS. 4 to 6 or 8 to 9 separately and shown in detail.
- the luminous means 20 comprises a carrier 22 made of good heat-conducting material, in the present embodiment of copper.
- the carrier 22 is in the embodiment in FIGS. 2 to 6 prismatic with a hexagonal cross section that is the same across the entire height.
- the carrier is slightly conical, ie truncated pyramidal with downwardly inclined surfaces. Accordingly, the carrier 6 has plane, vertical surfaces 24 (FIG. Figure 5 ).
- an LED multi-chip 26 is mounted and connected. Each LED multichip is provided with a plurality of LEDs that share a common electrical connection.
- the cross section of the carrier 22 is asymmetrical. This is especially good in FIG. 4 to recognize.
- a larger side 28 forms with the two adjacent sides 30, 32 at an angle of 90 ° ( FIG. 5 ).
- the side 34 opposite the larger side is only about half as wide and forms an angle of approximately 135 ° with the two sides 36, 38 adjacent to this smaller side.
- radiation of the LED multichips radiates predominantly in the direction 40 of the smaller side 34.
- the indicated area 44 in the direction of which the surface normal 42 of the larger side points is less illuminated.
- the LED multichips 26 are glued with heat-conductive adhesive on the carrier 22 and additionally screwed.
- the heat generated during operation is transferred to the carrier 22.
- a longitudinal bore 46 is provided in the longitudinal bore 46.
- a heat pipe 48 is arranged with good heat transfer to the carrier 22.
- the heat pipe 48 is in FIG. 2 and 3 recognizable.
- the heat pipe 48 extends beyond the length of the carrier 22 to a heat sink 50.
- the heat sink 50 is in FIG. 3 good to see.
- the heat sink 50 is cylindrical according to the housing and lamp geometry and has a plurality of radial ribs. Via the heat pipe 48 and the heat sink 50, the heat transferred from the LEDs to the carrier 22 is dissipated. Heat pipe, heat sink and carrier form a common heat removal system.
- the heat sink 50 and 50 ' may be both above the carrier 22 and below the carrier 22, as well as above and below the carrier 22nd be arranged like this in FIG. 2 is shown.
- FIG. 7 another embodiment is shown. In this embodiment, the heat is dissipated directly from the heat pipe via a smaller heat sink 51 to the outside to the environment. The area 53 below the housing cap 16 remains free thereby.
- the flat surfaces of the support are inclined downwards, ie the surface normals point slightly downwards. This embodiment is in FIG. 8 and 9 shown. Due to the inclined surfaces and the multichips are slightly tilted down and radiation upwards is avoided from the outset. An anti-glare device 14 is then not required depending on the application.
Abstract
Description
Die Erfindung betrifft eine Außenleuchte zur Beleuchtung von Verkehrswegen, Gehwegen, Plätzen, Gebäuden, Außenanlagen und dergleichen entsprechend einem ausgewählten Beleuchtungsprofil, enthaltend ein zumindest teilweise lichtdurchlässiges Gehäuse und ein innerhalb des Gehäuses angeordnetes Leuchtmittel. Die Erfindung betrifft ferner einen Hochdrucklampenersatz.The invention relates to an outdoor lamp for illuminating traffic routes, sidewalks, squares, buildings, outdoor facilities and the like according to a selected lighting profile, comprising an at least partially translucent housing and a lamp disposed within the housing. The invention further relates to a high-pressure lamp replacement.
Aus der
Die bekannten Hochdrucklampen leuchten praktisch in alle Richtungen. Bei Außenleuchten hingegen wird gewöhnlich ein bestimmtes Beleuchtungsprofil gewünscht. So sollen Straßen oder Gehwege stark beleuchtet werden, während eine Abstrahlung nach oben häufig unerwünscht ist. Auch ist eine Abstrahlung in Längsrichtung der Straße beispielsweise eher erwünscht als quer zur Straße. Je nach Anwendung wird ein entsprechendes Beleuchtungsprofil erstellt. Das Beleuchtungsprofil wird bei der aus dem Stand der Technik
Hochdrucklampen haben den Nachteil, dass sie wartungsintensiv sind und in einem begrenzten Spektralbereich strahlen. Die Lampen sind ferner nur bedingt dimmbar und nur mit Verzögerung schaltbar. Bei Netzunterbrechung findet die Gasentladung nach Abkühlung erst wieder bei Erreichen eines Temperaturschwellwerts, beispielsweise nach etwa zehn Minuten statt.High-pressure lamps have the disadvantage that they are maintenance-intensive and radiate in a limited spectral range. The lamps are also only partially dimmable and switchable only with delay. When power is interrupted, the gas discharge after cooling only takes place again when a temperature threshold is reached, for example after about ten minutes.
Es ist Aufgabe der Erfindung, den Energieverbrauch und die Wartungskosten von Lampen zu senken und ein besseres Beleuchtungsergebnis zu erzielen. Erfindungsgemäß wird die Aufgabe dadurch gelöst, dass das Leuchtmittel umfasst:
- (c) einen Träger;
- (d) eine oder mehrere auf dem Träger angebrachte Leuchtdioden(LED)-Anordnungen, und
- (e) ein Wärmeabführungssystem zum Abführen der von den LED-Anordnungen erzeugten Wärme nach außen,
- (f) wobei der Träger derart ausgebildet ist, dass die LED-Anordnungen in Richtungen entsprechend dem ausgewählten Beleuchtungsprofil abstrahlen.
- (c) a carrier;
- (d) one or more light-emitting diode (LED) assemblies mounted on the carrier, and
- (e) a heat dissipation system for dissipating the heat generated by the LED arrays to the outside,
- (f) wherein the carrier is formed such that the LED arrays radiate in directions corresponding to the selected illumination profile.
Die Erfindung nutzt die Erkenntnis, dass sich ein Beleuchtungsprofil zumindest in großen Teilen realisieren lässt, wenn statt einer ungerichtet abstrahlenden Hochdrucklampe LED-Anordnungen verwendet werden, die in einen ausgewählten Winkelbereich abstrahlen. Dabei wird die Leuchtdichte einer Hochdrucklampe erreicht, wenn LED-Anordnungen mit einer Vielzahl von LEDs verwendet werden, die ein gemeinsames Wärmeabführsystem nutzen. LEDs entwickeln im Betrieb erhebliche Wärme, welche die Leuchtenkonstruktion sowie die LEDs selber belastet. Ein Wärmeabführsystem ermöglicht die Verwendung vieler LEDs ohne dass die maximale Belastungstemperatur erreicht wird. Mit der Verwendung von LEDs wird der Energieverbrauch gesenkt. LEDs haben eine längere Lebensdauer. Die Lampen haben entsprechend längere Wartungsintervalle. Je nach Umgebungsbedingungen können LEDs gedimmt werden, wenn keine volle Leistung erforderlich ist oder beliebig geschaltet werden. Auch dadurch kann der Energieverbrauch gesenkt werden.The invention makes use of the insight that an illumination profile can be realized, at least in large parts, if instead of a non-directionally radiating high-pressure lamp LED arrangements are used which radiate into a selected angular range. In this case, the luminance of a high pressure lamp is achieved when LED arrays are used with a variety of LEDs that use a common heat dissipation system. LEDs develop considerable heat during operation, which pollutes the luminaire construction as well as the LEDs themselves. A heat dissipation system allows the use of many LEDs without reaching the maximum load temperature. The use of LEDs reduces energy consumption. LEDs have a longer life. The lamps have correspondingly longer maintenance intervals. Depending on the ambient conditions, LEDs can dimmed when full power is not required or switched arbitrarily. This can also reduce energy consumption.
Vorzugsweise sind die LED-Anordnungen von linearen Multichips gebildet. Solche linearen Multichips umfassen mehrere LEDs auf einer gemeinsamen Träger mit gemeinsamen Anschlüssen. Solche Multichips sind allgemein bekannt. Durch geeignete Ausgestaltung des Multichips kann die Leuchtdichte, das abgestrahlte Spektrum und die Geometrie der LED-Anordnung derart ausgewählt werden, dass das Beleuchtungsprofil realisiert wird. Vorzugsweise werden mehrere LED-Multichips auf dem gemeinsamen Träger montiert. Bei linearen Multichips, deren Längsachse sich in vertikaler Richtung erstreckt, wird eine in etwa zu Hochdrucklampen vergleichbare Abstrahlcharakteristik eines linearen Brenners erreicht, der jedoch nur in einen begrenzten Winkelbereich abstrahlt.Preferably, the LED arrays are formed by linear multichips. Such linear multichips comprise a plurality of LEDs on a common carrier with common terminals. Such multichips are well known. By suitable design of the multichip, the luminance, the emitted spectrum and the geometry of the LED array can be selected such that the illumination profile is realized. Preferably, multiple LED multichips are mounted on the common carrier. In the case of linear multichips, the longitudinal axis of which extends in the vertical direction, a radiation characteristic comparable to that of high-pressure lamps of a linear burner is achieved, which however only radiates in a limited angular range.
Vorzugsweise umfasst das Wärmeabführsystem eine Heatpipe. Eine Heatpipe ist ein Wärmeüberträger mit besonders kleinem Wärmewiderstand. In einem gekapselten Volumen befindet sich eine verdampfbare Flüssigkeit, beispielsweise Wasser. Das Wasser wird an der den LEDs zugewandten Seite verdampft. Der Dampf kondensiert an der "kalten", den LEDs abgewandten Seite und fließt aufgrund des Kapillareffekts zurück zum Verdampfungspunkt. Es hat sich herausgestellt, dass die Wärmeabfuhr einer Heatpipe auch für eine große Anzahl LEDs, die bei einer erfindungsgemäßen Außenleuchte erforderlich ist, ausreichend ist.Preferably, the heat removal system comprises a heat pipe. A heat pipe is a heat exchanger with a particularly low thermal resistance. In an encapsulated volume is an evaporable liquid, such as water. The water is vaporized at the side facing the LEDs. The steam condenses on the "cold" side facing away from the LEDs and flows back to the evaporation point due to the capillary effect. It has been found that the heat dissipation of a heat pipe is sufficient even for a large number of LEDs, which is required in an outdoor lamp according to the invention.
Statt einer Heatpipe oder zusätzlich zu einer Heatpipe kann in einigen Anwendungen aber auch ein Kühlkörper an den Träger gekoppelt sein, über den die entstehenden Wärme abgeführt wird.Instead of a heat pipe or in addition to a heat pipe, in some applications, however, a heat sink can also be coupled to the carrier, via which the resulting heat is dissipated.
In einer besonders bevorzugten Ausgestaltung der Erfindung ist die Heatpipe innerhalb des Trägers geführt und der Träger besteht aus gut wärmeleitendem Material. Dann wird die Wärme von allen LEDs gleichmäßig abgeführt. Die Heatpipe ragt an wenigstens einer Stelle aus dem Träger heraus und gibt dort die Wärme an die Umgebung oder an einen Kühlkörper ab.In a particularly preferred embodiment of the invention, the heat pipe is guided within the carrier and the carrier consists of good heat-conducting material. Then the heat is dissipated evenly by all LEDs. The heat pipe protrudes at least one place out of the carrier and there transfers the heat to the environment or to a heat sink.
In einer weiteren Ausgestaltung der Erfindung ist der Träger ein langgestreckter Körper mit planen Flächen, deren Flächennormalen in Richtungen entsprechend dem ausgewählten Beleuchtungsprofil zeigen. Auf den planen Flächen können die LED-Anordnungen befestigt werden. Die Anschlüsse und Kabel für die LED-Anordnungen können außen an dem Träger geführt werden. Die Anschlüsse und Kabel für die LED-Anordnungen können aber auch durch einen Hohlraum im Inneren des Trägers geführt sein. Der Träger kann insbesondere prismatisch oder pyramidenstumpfförmig ausgebildet sein. Ein prismatischer Träger hat über die gesamte Höhe das gleiche Querschnittsprofil. Ein Beispiel für einen prismatischen Träger ist ein Würfel oder Quader. Bei einem prismatischen Träger zeigen die Flächennormalen der planen Flächen beispielsweise in eine waagerechte Richtung. Der Querschnitt des Trägers kann dabei derart ausgebildet sein, dass die planen Flächen andere Winkel als 90° miteinander bilden, so dass die Abstrahlung in bevorzugte Richtungen erfolgt. Gleichermaßen kann statt eines prismatischen ein pyramidenstumpfförmiger Träger verwendet werden. Bei einem Pyramidenstumpf, bei dem der kleinste Querschnitt unten und der größte Querschnitt oben ist, sind die planen Flächen etwas nach unten geneigt. Dadurch wird eine unerwünschte Abstrahlung in den oberen Halbraum vermieden. Es versteht sich, dass auch eine Kombination dieser Varianten oder auch gekrümmte Flächen möglich sind, wenn das ausgewählte Beleuchtungsprofil dies erfordert.In a further embodiment of the invention, the carrier is an elongate body with flat surfaces whose surface normals point in directions corresponding to the selected illumination profile. On the flat surfaces, the LED assemblies can be attached. The terminals and cables for the LED arrays can be routed outside the carrier. However, the terminals and cables for the LED arrangements can also be guided through a cavity in the interior of the carrier. The carrier may be formed in particular prismatic or truncated pyramidal. A prismatic beam has the same cross-sectional profile over its entire height. An example of a prismatic carrier is a cube or cuboid. For example, in a prismatic carrier, the surface normals of the planar surfaces are in a horizontal direction. The cross section of the carrier can be designed such that the flat surfaces form angles other than 90 ° with each other, so that the radiation takes place in preferred directions. Likewise, a truncated pyramidal support may be used instead of a prismatic one. For a truncated pyramid, where the smallest cross-section is at the bottom and the largest cross-section is at the top, the flat surfaces are slightly inclined downwards. As a result, unwanted radiation in the upper half space is avoided. It is understood that a combination of these variants or even curved surfaces are possible if the selected lighting profile requires it.
Die Außenleuchte ermöglicht eine gezielte Lichtlenkung durch geeignete Positionierung und Ausrichtung der LED-Anordnungen. Dadurch sind zusätzliche, lichtlenkende optische Bauteile wie Prismen, Spiegel oder Lamellen, durch welche die Beleuchtungsstärke verringert wird, nicht zwingend erforderlich. Es versteht sich jedoch, dass derartige Bauteile jedoch zusätzlich eingesetzt werden können.The outdoor light enables targeted light control by suitable positioning and alignment of the LED arrays. As a result, additional, light-directing optical components such as prisms, mirrors or fins, by which the illuminance is reduced, not mandatory. It is understood, however, that such components can also be used in addition.
In einer Ausgestaltung der Erfindung kann eine Entblendvorrichtung vorgesehen ist. Die Entblendvorrichtung kann im Wesentlichen zylindrisch ausgebildet sein und in Umfangsrichtung mit einem prismatischen Zickzackprofil versehen sein. Das Zickzackprofil kann entsprechend dem ausgewählten Beleuchtungsprofil eine ungleichmäßige Verteilung der Prismengröße aufweisen. Insbesondere kann die Entblendvorrichtung mit Zylinderlinsen versehen sein, deren Krümmungsachsen sich in Längsrichtung erstrecken. Die Zylinderlinsen sind vorzugsweise an der Innenseite der Entblendvorrichtung angeformt. Das prismatische Zickzackprofil auf der Außenseite.In one embodiment of the invention, a anti-dazzle device is provided. The anti-dazzle device may be formed substantially cylindrical and be provided in the circumferential direction with a prismatic zigzag profile. The zigzag profile may have an uneven distribution of the prism size according to the selected illumination profile. In particular, the anti-dazzle device can be provided with cylindrical lenses whose axes of curvature are in Extend longitudinally. The cylindrical lenses are preferably formed on the inside of the anti-dazzle device. The prismatic zigzag profile on the outside.
Die Aufgabe wird bei bereits bestehenden Leuchten insbesondere auch durch einen dem obigen Leuchtmittel entsprechenden Hochdrucklampenersatz gelöst, der gekennzeichnet ist durch einen Träger mit einem dem Anschluss einer Hochdrucklampe entsprechenden elektrischen und mechanischen Anschluss. Ein solches Leuchtmittel ermöglicht es, Hochdrucklampen durch Leuchtmittel mit LED-Anordnungen auf einem Träger mit einem Wärmeabführsystem zu ersetzen. Bestehende Außenleuchten müssen also nicht umgerüstet werden, sondern es wird vielmehr das Leuchtmittel ausgetauscht.The object is achieved in existing lights in particular by a corresponding to the above bulbs high-pressure lamp replacement, which is characterized by a carrier with a connection of a high-pressure lamp corresponding electrical and mechanical connection. Such a luminous means makes it possible to replace high-pressure lamps by lamps with LED arrangements on a support with a heat removal system. Existing outdoor lights must therefore not be converted, but it is rather the bulb replaced.
Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche. Ein Ausführungsbeispiel ist nachstehend unter Bezugnahme auf die beigefügten Zeichnungen näher erläutert.Embodiments of the invention are the subject of the dependent claims. An embodiment is explained below with reference to the accompanying drawings.
- Fig.1Fig.1
- ist eine Seitenansicht einer Außenleuchte mit Hochdrucklampenersatz.is a side view of an outdoor lamp with high pressure lamp replacement.
- Fig.2Fig.2
-
ist ein Querschnitt durch die Außenleuchte aus
Figur 1 mit prismatischem Träger ohne Gehäuse.is a cross section through the outdoor lampFIG. 1 with prismatic support without housing. - Fig.3Figure 3
-
zeigt den Hochdrucklampenersatz mit prismatischem Träger und Kühlkörper aus der Außenleuchte aus
Figur 1 .shows the high-pressure lamp replacement with prismatic carrier and heat sink from the outdoor lampFIG. 1 , - Fig.4Figure 4
-
zeigt einen Querschnitt für den Hochdrucklampenersatz aus
Figur 3 ohne Heatpipe und Kühlkörper.shows a cross section for the high pressure lamp replacementFIG. 3 without heatpipe and heat sink. - Fig.5Figure 5
-
ist eine perspektivische Darstellung des Hochdrucklampenersatzes aus
Figur 4 .is a perspective view of the high-pressure lamp replacementFIG. 4 , - Fig.6Figure 6
-
zeigt den Hochdrucklampenersatz aus
Figur 5 aus einer anderen Perspektive.shows the high pressure lamp replacementFIG. 5 from a different perspective. - Fig.7Figure 7
-
ist eine Seitenansicht einer Außenleuchte analog zu
Figur 1 , aber mit einer alternativen Ausgestaltung des Kühlkörpersis a side view of an outdoor lamp analog toFIG. 1 but with an alternative embodiment of the heat sink - Fig.8Figure 8
-
ist ein Querschnitt durch eine Außenleuchte analog zu
Figur 2 , aber mit konischem Träger.is a cross section through an outdoor lamp analog toFIG. 2 but with conical support. - Fig.9Figure 9
-
zeigt den Hochdrucklampenersatz mit konischem Träger und Kühlkörper aus der Außenleuchte aus
Figur 8 .shows the high pressure lamp replacement with conical carrier and heat sink from the outdoor lampFIG. 8 ,
In dem Gehäuse ist eine Endblendvorrichtung 14 aus Polycarbonat angeordnet. Eine solche Entblendvorrichtung 14 ist in der eingangs genannten
Die oben beschriebene Außenleuchte ist bereits bekannt und wird von der Anmelderin vertrieben.The outdoor light described above is already known and sold by the applicant.
Innerhalb des Gehäuses ist jedoch anders als bei den bekannten Außenleuchten ein anderes Leuchtmittel 20 angeordnet. Das Leuchtmittel 20 ist in den
Die LED-Multichips 26 sind mit wärmeleitendem Kleber auf dem Träger 22 aufgeklebt und zusätzlich verschraubt. Die im Betrieb entstehende Wärme wird auf den Träger 22 übertragen. In dem Träger 22 ist eine Längsbohrung 46 vorgesehen. In der Längsbohrung 46 ist eine Heatpipe 48 mit gutem Wärmeübergang zum Träger 22 angeordnet. Die Heatpipe 48 ist in
In einem weiteren Ausführungsbeispiel sind die planen Flächen des Trägers nach unten geneigt, d.h. die Flächennormalen zeigen etwas nach unten. Dieses Ausführungsbeispiel ist in
Claims (15)
dadurch gekennzeichnet, dass das Leuchtmittel (20) umfasst:
characterized in that the lighting means (20) comprises:
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009044388A DE102009044388A1 (en) | 2009-11-02 | 2009-11-02 | Outdoor light and high pressure lamp replacement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2317211A2 true EP2317211A2 (en) | 2011-05-04 |
EP2317211A3 EP2317211A3 (en) | 2013-10-30 |
Family
ID=43606425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10186977.4A Withdrawn EP2317211A3 (en) | 2009-11-02 | 2010-10-08 | External light and high pressure light replacement |
Country Status (3)
Country | Link |
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US (1) | US20110267820A1 (en) |
EP (1) | EP2317211A3 (en) |
DE (1) | DE102009044388A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US9765956B2 (en) * | 2014-08-04 | 2017-09-19 | Spring City Electrical Manufacturing Company | LED luminaire light fixture for a lamppost |
DE102016208073A1 (en) * | 2016-05-11 | 2017-11-16 | Zumtobel Lighting Gmbh | lamp |
US11092325B2 (en) * | 2018-10-10 | 2021-08-17 | Elumigen, Llc | High intensity discharge light assembly |
US11408602B2 (en) * | 2018-10-10 | 2022-08-09 | Elumigen, Llc | High intensity discharge light assembly |
IT201900014298A1 (en) * | 2019-08-07 | 2021-02-07 | Iguzzini Illuminazione | OPTICAL UNIT FOR ILLUMINATION FIXTURE WITH IMPROVED EMISSION AND LIGHTING FIXTURE HOSTING THIS OPTICAL UNIT |
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DE102007053790B3 (en) * | 2007-11-12 | 2009-05-07 | Siteco Beleuchtungstechnik Gmbh | LED luminaire for the design of the light distribution |
NL2000996C2 (en) * | 2007-11-12 | 2008-09-15 | Ind Tech Verlichting B V | LED light fixture for e.g. street lighting, has LED's protected from weather by refractive optical components |
DE102008036020A1 (en) * | 2007-12-18 | 2009-06-25 | Osram Opto Semiconductors Gmbh | Opto-electronic module and lighting device |
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DE202008012394U1 (en) * | 2008-09-17 | 2008-11-27 | Stadtfeld Elektrotechnische Fabrik Gmbh & Co. Kg | lighting device |
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2009
- 2009-11-02 DE DE102009044388A patent/DE102009044388A1/en not_active Ceased
-
2010
- 2010-10-08 EP EP10186977.4A patent/EP2317211A3/en not_active Withdrawn
- 2010-11-01 US US12/917,161 patent/US20110267820A1/en not_active Abandoned
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Publication number | Priority date | Publication date | Assignee | Title |
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EP1528315B1 (en) | 2005-01-11 | 2009-08-05 | NeoBulb Technologies, Inc. | Light set with heat dissipation means |
EP1933085A1 (en) | 2005-05-25 | 2008-06-18 | NeoBulb Technologies, Inc. | Light-emitting diode cluster lamp |
EP1916467A1 (en) | 2005-08-19 | 2008-04-30 | NeoBulb Technologies, Inc. | Led illumination device with high power and high heat dissipation rate |
DE102005047746A1 (en) | 2005-09-28 | 2007-05-24 | Semperlux Ag - Lichttechnische Werke - | Arrangement for targeted de-glare of outdoor lights in the vertical and horizontal axis |
EP1970967A1 (en) | 2005-11-28 | 2008-09-17 | NeoBulb Technologies, Inc. | Package structure of light-emitting diode |
EP2091079A1 (en) | 2006-11-30 | 2009-08-19 | NeoBulb Technologies, Inc. | Outdoor-type high-power light emitting diode illumination device |
Also Published As
Publication number | Publication date |
---|---|
US20110267820A1 (en) | 2011-11-03 |
EP2317211A3 (en) | 2013-10-30 |
DE102009044388A1 (en) | 2011-05-05 |
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