EP2748527A2 - Light source device - Google Patents

Light source device

Info

Publication number
EP2748527A2
EP2748527A2 EP12756145.4A EP12756145A EP2748527A2 EP 2748527 A2 EP2748527 A2 EP 2748527A2 EP 12756145 A EP12756145 A EP 12756145A EP 2748527 A2 EP2748527 A2 EP 2748527A2
Authority
EP
European Patent Office
Prior art keywords
light source
heat sink
source device
led
main heat
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.)
Granted
Application number
EP12756145.4A
Other languages
German (de)
French (fr)
Other versions
EP2748527B1 (en
Inventor
Harald Dellian
Fabian Reingruber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osram GmbH
Original Assignee
Osram GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Osram GmbH filed Critical Osram GmbH
Publication of EP2748527A2 publication Critical patent/EP2748527A2/en
Application granted granted Critical
Publication of EP2748527B1 publication Critical patent/EP2748527B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/04—Resilient mountings, e.g. shock absorbers 
    • 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
    • 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
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing
    • F21S6/004—Lighting devices intended to be free-standing with a lamp housing in direct contact with the floor or ground
    • 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
    • F21W2131/1005—Outdoor lighting of working places, building sites or the like
    • 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 present invention relates to a Lichtierinvor ⁇ direction with at least one LED with a Lichtab ⁇ beam side and the Lichtabstrahlseite opposite rear side, wherein the at least one LED is arranged on a circuit board, at least one Hauptkühl ⁇ body, with the back of at least one LED, and a driver device for operating the at least one LED, wherein the driver device has at least one connection for coupling to a power supply.
  • a light source device having at least one LED with a Lichtabstrahlseite and the light emitting side opposite back, wherein the at least one LED is disposed on a circuit board, wherein the device through the board an assembly level of at least one LED de ⁇ finiert, at least one main heat sink, the is coupled to the rear side of the at least one LED, where ⁇ in the main heat sink has a lateral surface, and a driver device for operating the at least one LED, wherein the driver device has at least one connection for coupling to a power supply.
  • Generic light source devices are used, for example, as construction site luminaires.
  • a well-known from the prior art construction site light 30 is shown in Fig. 1. This includes a covered by a glass disc 32 ⁇ array 34 having a plurality of LEDs.
  • a shock protection 36 surrounds the combination of LED array 34 and glass pane 32.
  • On the back of a non-illustrated main heat sink for cooling the LEDs of the LED array 34 is provided.
  • a pivot arm 38 is provided on the rear side, by means of which the construction site luminaire 30 can be set up in the operating state for illuminating an object with a fixed emission direction.
  • a disadvantage of the known from the prior art construction light is that only LEDs with a ⁇ be marginalized power can be used, otherwise a permissible operating temperature is exceeded, which would lead to damage to the building site lamp.
  • a wide ⁇ rer disadvantage is that in the known construction ⁇ provide light only two viewing angle can be realized even in capped construction site lamp 30 30, by means of the folded-down pivoting arm 38 and on the other in a lay-flat on a surface construction light, particularly when using the swing arm the arrangement is relatively unstable to wind or vibration, as they are commonly found on construction sites.
  • the object of the present invention is therefore to refine a light source device of the type mentioned in the introduction such that a higher emission power is made possible. This object is achieved by a Lichtierinvorrich ⁇ tion with the features of claim 1.
  • the present invention according to the first aspect is based on the finding that a higher emission power is made possible when measures are taken to improve the cooling capacity, that is, the dissipation of heat generated by power loss. According to the invention it is therefore provided that the light source device further summarizes ⁇ a front heatsink environmentally which is thermally coupled to the main heat sink.
  • ⁇ a front heatsink environmentally which is thermally coupled to the main heat sink.
  • the effective cooling capacity can be significantly increased, so that more powerful LEDs or larger numbers of LEDs can be used. This results in a significant increase in the light emission.
  • the front heat sink has a non-coupled to the main heat sink radiating surface, wherein the front cooling body is arranged such that the beam is from ⁇ surface oriented toward the light emission side of the at least one LED.
  • “Non-coupled to the main heat sink” in this context means that the front heat sink ei ⁇ ne its radiating surface having opposite rear side which is thermally coupled to the main heat sink in this way can be almost the entire upper surface of the light source device for cooling purposes used, whereby -.
  • the board is preferably heat sink coupled via a thermal interface material with the principal, wherein the thermal interface material is particularly designed to be elastically a particular..
  • thermal interface material is available under the name T-flex Laird.
  • T-flex Laird By such a coupling unevenness of the heat sink can be compensated. This means that their surfaces do not need to be milled so that cheaper heatsinks can be used. Entspre ⁇ accordingly can be provided that the front heat sink Hauptkühlkör ⁇ is coupled via a thermal interface material with, whereby also here preferably the thermal see interface material is elastic.
  • the substrate is connected to the main heat sink and achieved a seal against moisture. This reduces the risk of moisture ingress between heatsinks without the need for additional measures.
  • the invention can also be implemented with a variety of boards.
  • the main heat sink on a circumferential shock ⁇ protection device in particular made of plastic, on.
  • the shock protection device ensures a certain distance.
  • the substrate on which the light source device stands is protected against damage due to excessive temperatures.
  • the circumferential impact protection device can also be present in the present invention according to the second aspect.
  • the Stoßtikvorrich ⁇ tion a first, the main and the front heat sink contacting component and a second, the Jardinoberflä ⁇ che of the impact protection device forming component has, wherein the first component of a more elastic material than the second component , In this way, manufacturing tolerances can be compensated. In addition, the fixation between the heat sinks can be ensured thereby.
  • a grip is formed, which serves for easy transport of the light source device ⁇ .
  • the handle allows positioning of the light source device, without the possibly heated heat sinks would have to be touched.
  • the handle is not centrally placed due to the a-symmetrical weight distribution due to the different angles of attack of the above-mentioned partial surfaces.
  • the handle can also represent an advantageous embodiment according to the second aspect of the invention.
  • At least one coupling device for mechanically and / or electrically coupling a plurality of light source devices may be arranged in the impact protection device.
  • any number of light source devices can be coupled to one another to achieve a desired brightness. Only one of these coupled light source devices needs to be coupled to a power supply.
  • the driver device is mounted on the side of the main heat sink, which is not coupled to the front heat sink. Thereby, the driving apparatus is largely thermally decoupled from the LEDs, resulting in an increase in the life of the components of the driving device, and thus the light source device ⁇ .
  • the light source device may further comprise a channel in which connection lines connecting the circuit board to the driver device are arranged. It can be provided that in the channel at least one gradation is formed such that thereby the distance between the current-carrying areas of the board and the main heat sink is increased. In this way, a voltage flashover between current-carrying areas of the board and the main heat sink can be reliably prevented, resulting in increased security for a user of the light source device.
  • a training in the area of the channel may be provided savings in the main heat sink which is formed in such a manner that thereby the distance between current ⁇ leading areas of the circuit board and the main heat sink is increased.
  • the light source device may further comprise a moisture-permeable membrane, in particular a Goretex membrane, which is arranged such that moisture present in cavities of the light source device can escape from the light source device. In this way damage to the light source device by water ingress is reliably avoided.
  • a sealing ring and a transparent pane arranged above the at least one LED can be provided, wherein the sealing ring is arranged between the pane and the front cooling body.
  • the object is to develop a generic Lichtquel ⁇ lenvorraum of the first-mentioned type such that different radiation directions in a simple manner with high stability allows who ⁇ the.
  • the embodiments described above in connection with the present invention according to the first aspect also apply mutatis mutandis to the present invention according to the second aspect and vice versa.
  • the embodiments, aspects and features described in the first and second aspects of the present invention are not mutually exclusive, but that one or more of the embodiments, aspects or features described herein may be each one or more of those described herein Embodiments, embodiments or features can be combined.
  • a light source device having at least one LED with a light emission side and one of the light emission side opposite rear side, wherein the at least one LED is arranged on a circuit board, wherein an assembly level of the at least one LED de ⁇ fined by the board, at least one main heat sink, which is coupled to the back of the at least one LED, wherein the main heat sink has a lateral surface and a driver device for operating the at least one LED, the driver device having at least one connection for coupling to a power supply.
  • the lateral surface of the main cooling body has at least a first, a second, a third and a fourth surface portion, wherein the first partial surface is parallel to the array ⁇ plane, wherein the second surface portion includes a first angle to the first surface portion, wherein the third partial surface a second angle to the first sub-area (25a) and wherein the fourth sub-area includes a third angle to the first sub-area, wherein at least two of the angles are different.
  • the present invention is based on the finding that different emission directions can be set particularly stable if the main heat sink itself is used for this purpose.
  • the invention therefore has the lateral surface of the main heat sink at least a first, a second, a third and a fourth partial surface, wherein the first partial surface is parallel to the arrangement plane of the at least one LED, wherein the second part ⁇ surface includes a first angle to the first partial surface, wherein the third sub-area includes a second angle to the first surface portion, and wherein the four ⁇ th partial area includes a third angle to the first surface portion, wherein at least two of the different angle are lent.
  • a hinged element as known from the prior art, can be avoided, in which there is a risk that it collapses due to the influence of wind or vibrations or can not prevent the building site lamp from falling over.
  • the first, the second and the third angle are different from each other, so that at least three different radiation directions realized ⁇ who can.
  • the lateral surface further comprises a fifth partial surface which encloses a fourth angle to the first partial surface. In this way, even four different radiation directions can be realized.
  • the lateral surface has a further partial surface which runs parallel to the first partial surface, the second, the third and the fourth partial surface or the second, the third, the fourth and the fifth partial surface arranged between the first and the further partial surface are.
  • the main heat sink thus has the shape of an irregularly shaped truncated pyramid.
  • the main heat sink on a plurality of fins, which are arranged projecting from the first part surface.
  • the fins extend radially. In this way, it is ensured that a chimney is formed, independently of which part of the surface on which the light source device is stored - l the heated air due to convection radiated who can the above ⁇ ⁇ .
  • Ausbil ⁇ extension of the fins of the main heat sink can be independent of the position of the light source device to a flow of the ER-heated air from bottom to top. As a result, satisfactory cooling results can be achieved regardless of the location of the construction site luminaire.
  • the main heat sink has a recess, wherein the fins extend radially to this recess.
  • the recess ensures that there is no constriction due to the radially inwardly extending fins, which would prevent convection.
  • each fin has an outer end and an inner end oriented towards the center of the main cooling body, wherein the inner ends of adjacent fins have a predeterminable minimum distance. As a result, the chimney effect can be ensured to a predeterminable extent.
  • the predetermined minimum distance by Varia ⁇ tion of the length of the individual fins is set.
  • the individual fins have different lengths in their extension to the recess.
  • the connection for coupling with the at least one power supply is designed to be pivotable.
  • the light source device can be coupled to a power supply independently of its instantaneous position in such a way that the connection is exposed to the least possible bending or shearing forces.
  • Figure 1 is a schematic representation of a known from the prior art light source device with an LED array.
  • FIG. 2 shows different schematic representations of a first embodiment of a light source device according to the invention
  • FIG. 3 shows further views of the exemplary embodiment illustrated in FIG. 2 of a light source device according to the invention
  • FIG. 4 is an exploded view of the light source device shown in FIG. 2 and FIG. 3; FIG.
  • FIG. 5 different representations of a second embodiment of a light source device according to the invention
  • Fig. 6 various views of a third embodiment of an inventive Lichtquel ⁇ lenvorraum
  • FIG. 7 shows various representations of the main heat sink used in the embodiment of a light source device according to the invention shown in FIG.
  • Figures 2 to 4 show various schematic Dar ⁇ positions of a first embodiment of a inventions to the invention the light source device.
  • a main heat sink 2 Behind an array with a plurality of LEDs 1, a main heat sink 2 is arranged.
  • a front heat sink is designated 3.
  • the main heat sink 2 has a Mantelflä ⁇ che, which corresponds to an irregular truncated pyramid.
  • Its lateral surface has a plurality of partial surfaces 25a to 25f, wherein the first partial surface 25a is oriented parallel to the arrangement plane of the LEDs 1.
  • the second partial surface 25b encloses an angle of 85 ° to the first partial surface 25a, the third partial surface 25c an angle of 70 °, the fourth partial surface 25d an angle of 50 °, the fifth partial surface 25e an angle of 30 °.
  • the sixth surface portion 25f is parallel to the first part ⁇ surface 25a.
  • the specified angles are only playful and can vary depending on the application. Due to the different angles, the light source device can be positioned in different positions relative to a base, so that in this way the emission direction of the LEDs 1 is likewise varied.
  • a driving device 5 thermally from the LEDs 1 it is located on the ask ⁇ faces of the LED side of the main heat sink 2.
  • the main cooling body 2 has a plurality of fins 6, whereby the contact surfaces to the casing 7, 8 of the driving device 5 and thus the heat transfer is kept low.
  • In the housing 7, 8 of the driver device 5 is also located to place on the back of the connection to the power supply (not shown). This is preferably pivotally arranged to the difference ⁇ union layers in which a light source device according to the invention to a backing can be arranged to take into account.
  • the housing 7, 8 of the driver device 5 and a circumferential impact protection 9 prevent the main heat sink 2 from coming into direct contact with the substrate. This allows air to flow into the fins 6 and prevents damage to the main heat sink 2.
  • the light source device can be constructed according to various security classes. So can from the Driver device 5 already a touchable supply ⁇ voltage are provided. However, it is also possible for the LED substrate, that is to say the printed circuit board 11, to be isolated in such a way that the relevant regulations are met. This can be done for example by means of ceramic or even using FR4 boards. Instead of a circuit board 11 shown in the embodiment, a plurality of individual boards can be used.
  • a double insulation is ensured by using a FR4 board and an underlying thermal interface material (TIM) 12.
  • the LEDs 1 in this case single LEDs are used, but also multi-chip LEDs are used, are applied to the substrate 11, which in turn is connected via the TIM 12 to the main heat sink 2.
  • the waste heat of the LEDs 1 is derived in this way in the main heat sink 2.
  • ⁇ derum is also of the front radiator 3 thermally connected via the TIM 12th
  • they are firmly connected to each other, in this case by means of a screw 13. Due to this fixation results for both the circumferential impact protection 9 as well as for the internal construction a defined distance in which positions the components Need to become. To take account of manufacturing tolerances find here elastic components application.
  • the TIM 12 takes on a significant part of the adaptation. In addition to the connection of the circuit board 11 to the main heat sink 2 and the connection Both heat sink 2, 3 and the task of sealing against moisture.
  • the shock protection 9 is made of two different plastics, a solid and an elastic.
  • the elastic part ensures the fixation between the heat sinks 2, 3.
  • small tips can be provided on the heat sinks 2, 3, which drill into the impact protection 9, or small tips on the impact protection, which bend during fixation.
  • the fixation of the components with respect to the inner elements of the light source device is fulfilled by a sealing ring 15, which is arranged between the front cooling body 3 and a transparent plate 14.
  • the sealing ring 15 fixes the disc 14, a spacer 16 and the board, that is, the substrate 11, between the heat sinks 2, 3.
  • the sealing ring 15 also prevents the entry of moisture at this point.
  • the spacer 16 positions the disc 14 and prevents contact with the front heat sink 3, which is particularly important when using glass for the disc 14. Between the disk 14 and the spacer 16 further elements with optical properties, for example lenses, reflectors and the like, can be arranged.
  • Connecting lines between the driver device 5 and the substrate 11 with the LEDs 1 extend in a plastic channel 17.
  • This channel 17 projects through the main heat sink 2, the TIM 12 and the substrate 11 into one Cavity below the spacer 16. If the front heat sink 3 protrude beyond the spacer 16, the spacer 16 would ensure the insulation to the heat sink 3. In this cavity, the lines are connected to the substrate 11.
  • 17 steps 18 can be introduced into the channel, which ensure these distances.
  • a recess 19 may be provided in the heat sink 2 for securing these distances.
  • Fig. 5 shows a second embodiment of an OF INVENTION ⁇ to the invention the light source device.
  • the spacer 16 and the impact protector 9 are united in one part.
  • the space for the connection of the LEDs 1 is located under a cover 20, which is also part of the element 9, 16.
  • the terminal 21 to a power supply is designed swivel bar, whereby the light source device can be placed over this on the back.
  • FIG. 6 shows a third exemplary embodiment of a light source device according to the invention, in which the main heat sink 2, see FIG. 7, is designed to be particularly advantageous.
  • the fins 6 extend radially to a recess 23.
  • the recess 23 is arranged where these partial surfaces 25b, 25c, 25d, 25e would converge without recess.
  • Each fin 6 has an outer and an the center of the main cooling body 2 orien ⁇ patented inner end, said inner ends Benach ⁇ barter fins 6 have a predetermined minimum distance. This predetermined minimum distance is set by Variati ⁇ on the length of the respective fins 6. In this embodiment, regardless of the position of the light source device a chimney effect is achieved, whereby a particularly high cooling capacity is made possible in all layers of the light source device.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The invention relates to a light source device, comprising at least one LED (1) having a light emission side and a rear side opposite the light emission side, wherein the at least one LED (1) is arranged on a circuit board (11), at least one main heat sink (2), which is coupled to the rear side of the at least one LED (1), and a driver device (5) for operating the at least one LED (1), wherein the driver device (5) has at least one connection (21) for coupling to a voltage supply. The light source device also comprises a front heat sink (3), which is thermally coupled to the main heat sink (2).

Description

Beschreibung  description
Lichtquellenvorrichtung Light source device
Technisches Gebiet Technical area
Die vorliegende Erfindung betrifft eine Lichtquellenvor¬ richtung mit mindestens einer LED mit einer Lichtab¬ strahlseite und einer der Lichtabstrahlseite gegenüber- liegenden Rückseite, wobei die mindestens eine LED auf einer Platine angeordnet ist, mindestens einem Hauptkühl¬ körper, der mit der Rückseite der mindestens einen LED gekoppelt ist, und einer Treibervorrichtung zum Betreiben der mindestens einen LED, wobei die Treibervorrichtung mindestens einen Anschluss zum Koppeln mit einer Spannungsversorgung aufweist. Sie betrifft überdies eine Lichtquellenvorrichtung mit mindestens einer LED mit einer Lichtabstrahlseite und einer der Lichtabstrahlseite gegenüberliegenden Rückseite, wobei die mindestens eine LED auf einer Platine angeordnet ist, wobei durch die Platine eine Anordnungsebene der mindestens einen LED de¬ finiert ist, mindestens einem Hauptkühlkörper, der mit der Rückseite der mindestens einen LED gekoppelt ist, wo¬ bei der Hauptkühlkörper eine Mantelfläche aufweist, und einer Treibervorrichtung zum Betreiben der mindestens einen LED, wobei die Treibervorrichtung mindestens einen Anschluss zum Koppeln mit einer Spannungsversorgung aufweist. The present invention relates to a Lichtquellenvor ¬ direction with at least one LED with a Lichtab ¬ beam side and the Lichtabstrahlseite opposite rear side, wherein the at least one LED is arranged on a circuit board, at least one Hauptkühl ¬ body, with the back of at least one LED, and a driver device for operating the at least one LED, wherein the driver device has at least one connection for coupling to a power supply. It also relates to a light source device having at least one LED with a Lichtabstrahlseite and the light emitting side opposite back, wherein the at least one LED is disposed on a circuit board, wherein the device through the board an assembly level of at least one LED de ¬ finiert, at least one main heat sink, the is coupled to the rear side of the at least one LED, where ¬ in the main heat sink has a lateral surface, and a driver device for operating the at least one LED, wherein the driver device has at least one connection for coupling to a power supply.
Stand der Technik State of the art
Gattungsgemäße Lichtquellenvorrichtungen werden bei- spielsweise als Baustellenleuchten eingesetzt. Eine aus dem Stand der Technik bekannte Baustellenleuchte 30 ist in Fig. 1 dargestellt. Diese umfasst ein von einer Glas¬ scheibe 32 abgedecktes Array 34 mit einer Vielzahl von LEDs. Ein Stoßschutz 36 umgibt die Kombination aus LED- Array 34 und Glasscheibe 32. An der Rückseite ist ein nicht dargestellter Hauptkühlkörper zum Kühlen der LEDs des LED-Arrays 34 vorgesehen. Weiterhin ist an der Rückseite ein Schwenkarm 38 vorgesehen, mittels dessen die Baustellenleuchte 30 im Betriebszustand zum Beleuchten eines Objekts mit einer festen Abstrahlrichtung aufge- stellt werden kann. Generic light source devices are used, for example, as construction site luminaires. A well-known from the prior art construction site light 30 is shown in Fig. 1. This includes a covered by a glass disc 32 ¬ array 34 having a plurality of LEDs. A shock protection 36 surrounds the combination of LED array 34 and glass pane 32. On the back of a non-illustrated main heat sink for cooling the LEDs of the LED array 34 is provided. Furthermore, a pivot arm 38 is provided on the rear side, by means of which the construction site luminaire 30 can be set up in the operating state for illuminating an object with a fixed emission direction.
Ein Nachteil der aus dem Stand der Technik bekannten Baustellenleuchte besteht darin, dass nur LEDs mit einer be¬ grenzten Leistung eingesetzt werden können, da sonst eine zulässige Betriebstemperatur überschritten wird, was zu Schäden an der Baustellenleuchte führen würde. Ein weite¬ rer Nachteil besteht darin, dass bei der bekannten Bau¬ stellenleuchte nur zwei Abstrahlwinkel realisiert werden können, einmal bei aufgestellter Baustellenleuchte 30 mittels des abgeklappten Schwenkarms 38 und zum anderen bei flach auf eine Oberfläche gelegter Baustellenleuchte 30. Insbesondere bei Verwendung des Schwenkarms ist die Anordnung vergleichsweise instabil gegenüber Windeinfluss oder Erschütterungen, wie sie auf Baustellen üblicherweise anzutreffen sind. A disadvantage of the known from the prior art construction light is that only LEDs with a ¬ be marginalized power can be used, otherwise a permissible operating temperature is exceeded, which would lead to damage to the building site lamp. A wide ¬ rer disadvantage is that in the known construction ¬ provide light only two viewing angle can be realized even in capped construction site lamp 30 30, by means of the folded-down pivoting arm 38 and on the other in a lay-flat on a surface construction light, particularly when using the swing arm the arrangement is relatively unstable to wind or vibration, as they are commonly found on construction sites.
Darstellung der Erfindung Die Aufgabe der vorliegenden Erfindung gemäß einem ersten Aspekt besteht deshalb darin, eine Lichtquellenvorrichtung der eingangs genannten Art derart weiterzubilden, dass eine höhere Abstrahlleistung ermöglicht wird. Diese Aufgabe wird gelöst durch eine Lichtquellenvorrich¬ tung mit den Merkmalen von Patentanspruch 1. DESCRIPTION OF THE INVENTION The object of the present invention according to a first aspect is therefore to refine a light source device of the type mentioned in the introduction such that a higher emission power is made possible. This object is achieved by a Lichtquellenvorrich ¬ tion with the features of claim 1.
Der vorliegenden Erfindung gemäß dem ersten Aspekt liegt die Erkenntnis zugrunde, dass eine höhere Abstrahlleis- tung dann ermöglicht wird, wenn Maßnahmen getroffen werden, um die Kühlleistung, das heißt das Abführen von durch Verlustleistung entstehender Wärme, zu verbessern. Erfindungsgemäß ist deshalb vorgesehen, dass die Licht¬ quellenvorrichtung weiterhin einen Frontkühlkörper um- fasst, der thermisch mit dem Hauptkühlkörper gekoppelt ist. Durch die zusätzliche Nutzung eines Frontkühlkörpers kann die effektive Kühlleistung deutlich erhöht werden, so dass leistungsstärkere LEDs oder größere Anzahlen an LEDs eingesetzt werden können. Dadurch ergibt sich eine deutliche Erhöhung der Lichtabstrahlleistung. The present invention according to the first aspect is based on the finding that a higher emission power is made possible when measures are taken to improve the cooling capacity, that is, the dissipation of heat generated by power loss. According to the invention it is therefore provided that the light source device further summarizes ¬ a front heatsink environmentally which is thermally coupled to the main heat sink. The additional use of a front heat sink, the effective cooling capacity can be significantly increased, so that more powerful LEDs or larger numbers of LEDs can be used. This results in a significant increase in the light emission.
Bevorzugt weist der Frontkühlkörper eine nicht mit dem Hauptkühlkörper gekoppelte Abstrahloberfläche auf, wobei der Frontkühlkörper derart angeordnet ist, dass die Ab¬ strahloberfläche zur Lichtabstrahlseite der mindestens einen LED orientiert ist. „Nicht mit dem Hauptkühlkörper gekoppelt" bedeutet hierbei, dass der Frontkühlkörper ei¬ ne seiner Abstrahloberfläche gegenüberliegende Rückseite aufweist, die thermisch mit dem Hauptkühlkörper gekoppelt ist. Auf diese Weise lässt sich beinahe die gesamte Ober- fläche der Lichtquellenvorrichtung für Kühlzwecke verwenden, wodurch - ohne aktive Kühlmaßnahmen wie beispielsweise einem Gebläse und dergleichen - eine maximale Ab¬ strahlleistung ermöglicht wird. Die Platine ist bevorzugt über ein thermisches Interface-Material mit dem Haupt- kühlkörper gekoppelt, wobei das thermische Interface- Material insbesondere elastisch ausgebildet ist. Ein be- sonders bevorzugtes thermisches Interface-Material ist unter der Bezeichnung T-flex der Firma Laird erhältlich. Durch eine derartige Kopplung können Unebenheiten der Kühlkörper ausgeglichen werden. Dies bedeutet, dass deren Oberflächen nicht gefräst werden müssen, so dass kostengünstigere Kühlkörper verwendet werden können. Entspre¬ chend kann vorgesehen sein, dass der Frontkühlkörper über ein thermisches Interface-Material mit dem Hauptkühlkör¬ per gekoppelt ist, wobei auch hier bevorzugt das thermi- sehe Interface-Material elastisch ausgebildet ist. Neben dem bereits erwähnten Aspekt des Ausgleichens von Uneben¬ heiten der Kühlkörper beziehungsweise der Platine wird dadurch das Substrat an den Hauptkühlkörper angebunden und eine Abdichtung gegen Feuchtigkeit erzielt. Dadurch wird die Gefahr des Eindringens von Feuchtigkeit zwischen die Kühlkörper reduziert, ohne dass zusätzliche Maßnahmen angewendet werden müssten. Anstatt unter Verwendung einer einzigen Platine kann die Erfindung auch mit einer Vielzahl von Platinen realisiert werden. Bevorzugt weist der Hauptkühlkörper eine umlaufende Sto߬ schutzvorrichtung, insbesondere aus Kunststoff, auf. Auf diese Weise ist die Lichtquellenvorrichtung, unabhängig davon, welche Lichtabstrahlrichtung gewählt wird, zuverlässig gegen Beschädigungen durch einen unebenen Unter- grund und dergleichen geschützt, da die Stoßschutzvor¬ richtung einen bestimmten Abstand sicherstellt. Zugleich wird der Untergrund, auf dem die Lichtquellenvorrichtung steht, vor Beschädigungen durch zu hohe Temperaturen geschützt. Insbesondere die umlaufende Stoßschutzvorrich- tung kann auch bei der vorliegenden Erfindung gemäß dem zweiten Aspekt vorhanden sein. Besonders vorteilhaft ist es, wenn die Stoßschutzvorrich¬ tung eine erste, den Haupt- und den Frontkühlkörper kontaktierende Komponente und eine zweite, die Außenoberflä¬ che der Stoßschutzvorrichtung bildende Komponente auf- weist, wobei die erste Komponente aus einem elastischeren Material besteht als die zweite Komponente. Auf diese Weise können Fertigungstoleranzen ausgeglichen werden. Darüber hinaus kann dadurch die Fixierung zwischen den Kühlkörpern sichergestellt werden. Preferably, the front heat sink has a non-coupled to the main heat sink radiating surface, wherein the front cooling body is arranged such that the beam is from ¬ surface oriented toward the light emission side of the at least one LED. "Non-coupled to the main heat sink" in this context means that the front heat sink ei ¬ ne its radiating surface having opposite rear side which is thermally coupled to the main heat sink in this way can be almost the entire upper surface of the light source device for cooling purposes used, whereby -. Without active cooling measures, such as a blower and the like - from a maximum ¬ beam power is made possible the board is preferably heat sink coupled via a thermal interface material with the principal, wherein the thermal interface material is particularly designed to be elastically a particular.. particularly preferred thermal interface material is available under the name T-flex Laird. By such a coupling unevenness of the heat sink can be compensated. This means that their surfaces do not need to be milled so that cheaper heatsinks can be used. Entspre ¬ accordingly can be provided that the front heat sink Hauptkühlkör ¬ is coupled via a thermal interface material with, whereby also here preferably the thermal see interface material is elastic. In addition to the already mentioned aspect of balancing unevenness ¬ units of the heat sink or the circuit board thereby the substrate is connected to the main heat sink and achieved a seal against moisture. This reduces the risk of moisture ingress between heatsinks without the need for additional measures. Instead of using a single board, the invention can also be implemented with a variety of boards. Preferably, the main heat sink on a circumferential shock ¬ protection device, in particular made of plastic, on. In this way, regardless of which light emission direction is selected, the light source device is reliably protected against damage by an uneven substrate and the like, since the shock protection device ensures a certain distance. At the same time, the substrate on which the light source device stands is protected against damage due to excessive temperatures. In particular, the circumferential impact protection device can also be present in the present invention according to the second aspect. It is particularly advantageous if the Stoßschutzvorrich ¬ tion a first, the main and the front heat sink contacting component and a second, the Außenoberflä ¬ che of the impact protection device forming component has, wherein the first component of a more elastic material than the second component , In this way, manufacturing tolerances can be compensated. In addition, the fixation between the heat sinks can be ensured thereby.
Weiterhin bevorzugt ist in der Stoßschutzvorrichtung ein Griff ausgebildet, der dem einfachen Transport der Licht¬ quellenvorrichtung dient. Darüber hinaus ermöglicht der Griff eine Positionierung der Lichtquellenvorrichtung, ohne dass die gegebenenfalls erwärmten Kühlkörper berührt werden müssten. Bevorzugt ist der Griff aufgrund der a- symmetrischen Gewichtsverteilung infolge der unterschiedlichen Anstellwinkel der oben erwähnten Teilflächen nicht mittig platziert. Insbesondere der Griff kann auch eine vorteilhafte Ausgestaltung gemäß dem zweiten Aspekt der Erfindung darstellen. Further preferably, in the impact protection device, a grip is formed, which serves for easy transport of the light source device ¬. In addition, the handle allows positioning of the light source device, without the possibly heated heat sinks would have to be touched. Preferably, the handle is not centrally placed due to the a-symmetrical weight distribution due to the different angles of attack of the above-mentioned partial surfaces. In particular, the handle can also represent an advantageous embodiment according to the second aspect of the invention.
In der Stoßschutzvorrichtung kann mindestens eine Kopplungsvorrichtung zum mechanischen und / oder elektrischen Koppeln mehrerer Lichtquellenvorrichtungen angeordnet sein. Über derartige Kopplungsvorrichtungen können belie- big viele Lichtquellenvorrichtungen, zum Erzielen einer gewünschten Helligkeit, miteinander gekoppelt werden. Dabei braucht nur eine dieser miteinander gekoppelten Lichtquellenvorrichtungen mit einer Spannungsversorgung gekoppelt sein. Schließlich ist es bevorzugt, wenn die Treibervorrichtung auf der Seite des Hauptkühlkörpers angebracht ist, die nicht mit dem Frontkühlkörper gekoppelt ist. Dadurch ist die Treibervorrichtung thermisch weitgehend von den LEDs abgekoppelt, was in einer Erhöhung der Lebensdauer der Bauelemente der Treibervorrichtung und damit der Licht¬ quellenvorrichtung resultiert. At least one coupling device for mechanically and / or electrically coupling a plurality of light source devices may be arranged in the impact protection device. By means of such coupling devices, any number of light source devices can be coupled to one another to achieve a desired brightness. Only one of these coupled light source devices needs to be coupled to a power supply. Finally, it is preferred if the driver device is mounted on the side of the main heat sink, which is not coupled to the front heat sink. Thereby, the driving apparatus is largely thermally decoupled from the LEDs, resulting in an increase in the life of the components of the driving device, and thus the light source device ¬.
Die Lichtquellenvorrichtung kann weiterhin einen Kanal umfassen, in dem Verbindungsleitungen, die die Platine mit der Treibervorrichtung verbinden, angeordnet sind. Dabei kann vorgesehen sein, dass in dem Kanal mindestens eine Abstufung derart ausgebildet ist, dass dadurch die Strecke zwischen stromführenden Bereichen der Platine und dem Hauptkühlkörper vergrößert wird. Auf diese Weise lässt sich zuverlässig ein Spannungsüberschlag zwischen stromführenden Bereichen der Platine und dem Hauptkühlkörper verhindern, was in einer erhöhten Sicherheit für einen Benutzer der Lichtquellenvorrichtung resultiert. The light source device may further comprise a channel in which connection lines connecting the circuit board to the driver device are arranged. It can be provided that in the channel at least one gradation is formed such that thereby the distance between the current-carrying areas of the board and the main heat sink is increased. In this way, a voltage flashover between current-carrying areas of the board and the main heat sink can be reliably prevented, resulting in increased security for a user of the light source device.
Zu demselben Zweck kann im Bereich des Kanals eine Aus- sparung im Hauptkühlkörper vorgesehen sein, die derart ausgebildet ist, dass dadurch die Strecke zwischen strom¬ führenden Bereichen der Platine und dem Hauptkühlkörper vergrößert wird. For the same purpose a training, in the area of the channel may be provided savings in the main heat sink which is formed in such a manner that thereby the distance between current ¬ leading areas of the circuit board and the main heat sink is increased.
Die Lichtquellenvorrichtung kann weiterhin eine feuchtig- keitsdurchlässige Membran, insbesondere eine Goretex- Membran, umfassen, die derart angeordnet ist, dass in Hohlräumen der Lichtquellenvorrichtung vorhandene Feuchtigkeit aus der Lichtquellenvorrichtung austreten kann. Auf diese Weise wird eine Schädigung der Lichtquellenvor- richtung durch Wassereintritt zuverlässig vermieden. Es kann weiterhin ein Dichtungsring sowie eine über der mindestens einen LED angeordnete transparente Scheibe vorgesehen sein, wobei der Dichtungsring zwischen der Scheibe und dem Frontkühlkörper angeordnet ist. Dadurch werden die Scheibe, der Frontkühlkörper, das thermische Interface-Material sowie der Hauptkühlkörper gegeneinander fixiert. Überdies wird das Eintreten von Feuchtigkeit verhindert . The light source device may further comprise a moisture-permeable membrane, in particular a Goretex membrane, which is arranged such that moisture present in cavities of the light source device can escape from the light source device. In this way damage to the light source device by water ingress is reliably avoided. Furthermore, a sealing ring and a transparent pane arranged above the at least one LED can be provided, wherein the sealing ring is arranged between the pane and the front cooling body. As a result, the disc, the front heat sink, the thermal interface material and the main heat sink are fixed against each other. Moreover, the entry of moisture is prevented.
Gemäß einem zweiten Aspekt der vorliegenden Erfindung be- steht die Aufgabe darin, eine gattungsgemäße Lichtquel¬ lenvorrichtung der eingangs erstgenannten Art derart weiterzubilden, dass unterschiedliche Abstrahlrichtungen auf einfache Weise bei hoher Stabilität ermöglicht wer¬ den . Die zuvor im Zusammenhang mit der vorliegenden Erfindung gemäß dem ersten Aspekt beschriebenen Ausführungsformen gelten sinngemäß auch für die vorliegende Erfindung gemäß dem zweiten Aspekt und umgekehrt. Ferner ist anzumerken, dass die zur vorliegenden Erfindung gemäß dem ersten bzw. zweiten Aspekt beschriebenen Ausführungsformen, Ausgestaltungen und Merkmale sich grundsätzlich nicht gegenseitig ausschließen, sondern dass eine oder mehrere der hierin beschriebenen Ausführungsformen, Ausgestaltungen oder Merkmale jeweils mit einer oder mehreren anderen der hierin beschriebenen Ausführungsformen, Ausgestaltungen oder Merkmale kombiniert werden können. According to a second aspect of the present invention, the object is to develop a generic Lichtquel ¬ lenvorrichtung of the first-mentioned type such that different radiation directions in a simple manner with high stability allows who ¬ the. The embodiments described above in connection with the present invention according to the first aspect also apply mutatis mutandis to the present invention according to the second aspect and vice versa. Further, it is to be understood that the embodiments, aspects and features described in the first and second aspects of the present invention are not mutually exclusive, but that one or more of the embodiments, aspects or features described herein may be each one or more of those described herein Embodiments, embodiments or features can be combined.
Die Aufgabe gemäß diesem zweiten Aspekt wird gelöst durch eine Lichtquellenvorrichtung mit mindestens einer LED mit einer Lichtabstrahlseite und einer der Lichtabstrahlseite gegenüberliegenden Rückseite, wobei die mindestens eine LED auf einer Platine angeordnet ist, wobei durch die Platine eine Anordnungsebene der mindestens einen LED de¬ finiert ist, mindestens einem Hauptkühlkörper, der mit der Rückseite der mindestens einen LED gekoppelt ist, wobei der Hauptkühlkörper eine Mantelfläche aufweist und einer Treibervorrichtung zum Betreiben der mindestens einen LED, wobei die Treibervorrichtung mindestens einen Anschluss zum Koppeln mit einer Spannungsversorgung aufweist. Die Mantelfläche des Hauptkühlkörpers weist mindestens eine erste, eine zweite, eine dritte und eine vierte Teilfläche auf, wobei die erste Teilfläche parallel zur Anordnungs¬ ebene verläuft, wobei die zweite Teilfläche einen ersten Winkel zur ersten Teilfläche einschließt, wobei die dritte Teilfläche einen zweiten Winkel zur ersten Teilfläche (25a) einschließt und wobei die vierte Teilfläche einen dritten Winkel zur ersten Teilfläche einschließt, wobei zumindest zwei der Winkel unterschiedlich sind. Der vorliegenden Erfindung liegt die Erkenntnis zugrunde, dass unterschiedliche Abstrahlrichtungen besonders stabil eingestellt werden können, wenn dazu der Hauptkühlkörper selbst verwendet wird. Erfindungsgemäß weist daher die Mantelfläche des Hauptkühlkörpers mindestens eine erste, eine zweite, eine dritte und eine vierte Teilfläche auf, wobei die erste Teilfläche parallel zur Anordnungsebene der mindestens einen LED verläuft, wobei die zweite Teil¬ fläche einen ersten Winkel zur ersten Teilfläche einschließt, wobei die dritte Teilfläche einen zweiten Win- kel zur ersten Teilfläche einschließt und wobei die vier¬ te Teilfläche einen dritten Winkel zur ersten Teilfläche einschließt, wobei zumindest zwei der Winkel unterschied- lieh sind. Auf diese Weise kann ein klappbares Element, wie aus dem Stand der Technik bekannt, vermieden werden, bei dem die Gefahr besteht, dass es durch Windeinfluss oder Erschütterungen zusammenklappt oder ein Umfallen der Baustellenleuchte nicht verhindern kann. The object according to this second aspect is achieved by a light source device having at least one LED with a light emission side and one of the light emission side opposite rear side, wherein the at least one LED is arranged on a circuit board, wherein an assembly level of the at least one LED de ¬ fined by the board, at least one main heat sink, which is coupled to the back of the at least one LED, wherein the main heat sink has a lateral surface and a driver device for operating the at least one LED, the driver device having at least one connection for coupling to a power supply. The lateral surface of the main cooling body has at least a first, a second, a third and a fourth surface portion, wherein the first partial surface is parallel to the array ¬ plane, wherein the second surface portion includes a first angle to the first surface portion, wherein the third partial surface a second angle to the first sub-area (25a) and wherein the fourth sub-area includes a third angle to the first sub-area, wherein at least two of the angles are different. The present invention is based on the finding that different emission directions can be set particularly stable if the main heat sink itself is used for this purpose. According to the invention therefore has the lateral surface of the main heat sink at least a first, a second, a third and a fourth partial surface, wherein the first partial surface is parallel to the arrangement plane of the at least one LED, wherein the second part ¬ surface includes a first angle to the first partial surface, wherein the third sub-area includes a second angle to the first surface portion, and wherein the four ¬ th partial area includes a third angle to the first surface portion, wherein at least two of the different angle are lent. In this way, a hinged element, as known from the prior art, can be avoided, in which there is a risk that it collapses due to the influence of wind or vibrations or can not prevent the building site lamp from falling over.
Besonders bevorzugt sind der erste, der zweite und der dritte Winkel voneinander verschieden, so dass mindestens drei unterschiedliche Abstrahlrichtungen realisiert wer¬ den können. Bei einer bevorzugten Ausführungsform umfasst die Mantelfläche weiterhin eine fünfte Teilfläche, die einen vierten Winkel zur ersten Teilfläche einschließt. Auf diese Weise lassen sich sogar vier unterschiedliche Abstrahlrichtungen realisieren. Besonders bevorzugt weist die Mantelfläche eine weitere Teilfläche auf, die paral- lel zur ersten Teilfläche verläuft, wobei die zweite, die dritte und die vierte Teilfläche oder die zweite, die dritte, die vierte und die fünfte Teilfläche zwischen der ersten und der weiteren Teilfläche angeordnet sind. Der Hauptkühlkörper weist demnach die Form eines unregelmäßig geformten Pyramidenstumpfs auf. Durch die weitere Teil¬ fläche kann eine Abstrahlrichtung senkrecht nach oben realisiert werden. Particularly preferably, the first, the second and the third angle are different from each other, so that at least three different radiation directions realized ¬ who can. In a preferred embodiment, the lateral surface further comprises a fifth partial surface which encloses a fourth angle to the first partial surface. In this way, even four different radiation directions can be realized. Particularly preferably, the lateral surface has a further partial surface which runs parallel to the first partial surface, the second, the third and the fourth partial surface or the second, the third, the fourth and the fifth partial surface arranged between the first and the further partial surface are. The main heat sink thus has the shape of an irregularly shaped truncated pyramid. By the further part surface ¬ a radiation direction can be realized vertically upwards.
Bevorzugt weist der Hauptkühlkörper eine Vielzahl von Finnen auf, die von der ersten Teilfläche abstehend ange- ordnet sind. Durch die Ausbildung der Länge und Höhe der jeweiligen Finnen werden dadurch die jeweiligen Teilflächen des Hauptkühlkörpers realisiert. Bei einer besonders bevorzugten Ausführungsform erstrecken sich die Finnen radial. Auf diese Weise wird sichergestellt, dass unab- hängig davon, auf welcher Teilfläche die Lichtquellenvorrichtung gelagert wird, ein Kamin gebildet wird, durch - l ü ¬ den erwärmte Luft infolge von Konvektion abgestrahlt wer¬ den kann. Mit anderen Worten lässt eine derartige Ausbil¬ dung der Finnen des Hauptkühlkörpers unabhängig von der Lage der Lichtquellenvorrichtung eine Strömung der er- wärmten Luft von unten nach oben zu. Dadurch lassen sich unabhängig von der Lage der Baustellenleuchte zufrieden stellende Kühlergebnisse erzielen. Preferably, the main heat sink on a plurality of fins, which are arranged projecting from the first part surface. By forming the length and height of the respective fins, the respective partial surfaces of the main cooling body are thereby realized. In a particularly preferred embodiment, the fins extend radially. In this way, it is ensured that a chimney is formed, independently of which part of the surface on which the light source device is stored - l the heated air due to convection radiated who can the above ¬ ¬. In other words, such Ausbil ¬ extension of the fins of the main heat sink can be independent of the position of the light source device to a flow of the ER-heated air from bottom to top. As a result, satisfactory cooling results can be achieved regardless of the location of the construction site luminaire.
Bevorzugt weist der Hauptkühlkörper eine Aussparung auf, wobei sich die Finnen radial zu dieser Aussparung erstre- cken. Durch die Aussparung wird sichergestellt, dass durch die sich radial nach innen erstreckenden Finnen keine Engstelle entsteht, die eine Konvektion verhindern würde . Preferably, the main heat sink has a recess, wherein the fins extend radially to this recess. The recess ensures that there is no constriction due to the radially inwardly extending fins, which would prevent convection.
Bevorzugt ist die Aussparung dort angeordnet, wo die zweite, die dritte und die vierte oder die zweite, die dritte, die vierte und die fünfte Teilfläche ohne die Aussparung zusammenlaufen würden. Auf diese Weise wird der Kamineffekt in allen Lagen der Lichtquellenvorrichtung ermöglicht. Bevorzugt weist jede Finne ein äußeres Ende und ein zum Zentrum des Hauptkühlkörpers orientiertes inneres Ende auf, wobei die inneren Enden benachbarter Finnen einen vorgebbaren Mindestabstand aufweisen. Dadurch lässt sich der Kamineffekt in einem vorgebbaren Ausmaß sicherstel- len. Preferably, the recess is arranged where the second, the third and the fourth or the second, the third, the fourth and the fifth partial surface would converge without the recess. In this way, the chimney effect is enabled in all layers of the light source device. Preferably, each fin has an outer end and an inner end oriented towards the center of the main cooling body, wherein the inner ends of adjacent fins have a predeterminable minimum distance. As a result, the chimney effect can be ensured to a predeterminable extent.
Bevorzugt ist der vorgebbare Mindestabstand durch Varia¬ tion der Länge der jeweiligen Finnen eingestellt. Mit anderen Worten weisen demnach die einzelnen Finnen unterschiedliche Längen in ihrer Erstreckung zur Aussparung hin auf. Es kann vorgesehen sein, dass der Anschluss zum Koppeln mit der mindestens einen Spannungsversorgung schwenkbar ausgebildet ist. Dadurch lässt sich die Lichtquellenvorrichtung unabhängig von ihrer momentanen Lage derart mit einer Spannungsversorgung koppeln, dass der Anschluss geringstmöglichen Biege- oder Scherkräften ausgesetzt ist. Preferably, the predetermined minimum distance by Varia ¬ tion of the length of the individual fins is set. In other words, therefore, the individual fins have different lengths in their extension to the recess. It may be provided that the connection for coupling with the at least one power supply is designed to be pivotable. As a result, the light source device can be coupled to a power supply independently of its instantaneous position in such a way that the connection is exposed to the least possible bending or shearing forces.
Weitere bevorzugte Ausführungsformen ergeben sich aus den Unteransprüchen . Further preferred embodiments emerge from the subclaims.
Kurze Beschreibung der Zeichnung (en) Short description of the drawing (s)
Im Nachfolgenden werden Ausführungsbeispiele der vorlie¬ genden Erfindung unter Bezugnahme auf die beigefügten Zeichnungen näher beschrieben. Es zeigen: In the following, embodiments of the invention with reference vorlie ¬ constricting be described in more detail to the accompanying drawings. Show it:
Fig. 1 in schematischer Darstellung eine aus dem Stand der Technik bekannte Lichtquellenvorrichtung mit einem LED-Array; Figure 1 is a schematic representation of a known from the prior art light source device with an LED array.
Fig. 2 verschiedene schematische Darstellungen eines ers¬ ten Ausführungsbeispiels einer erfindungsgemäßen Lichtquellenvorrichtung; 2 shows different schematic representations of a first embodiment of a light source device according to the invention;
Fig. 3 weitere Ansichten des in Fig. 2 dargestellten Ausführungsbeispiels einer erfindungsgemäßen Licht¬ quellenvorrichtung; FIG. 3 shows further views of the exemplary embodiment illustrated in FIG. 2 of a light source device according to the invention; FIG.
Fig. 4 eine Explosionsdarstellung der in der Fig. 2 und der Fig. 3 gezeigten Lichtquellenvorrichtung; FIG. 4 is an exploded view of the light source device shown in FIG. 2 and FIG. 3; FIG.
Fig. 5 verschiedene Darstellungen eines zweiten Ausführungsbeispiels einer erfindungsgemäßen Lichtquel- lenvorrichtung; Fig. 6 verschiedene Darstellungen eines dritten Ausführungsbeispiels einer erfindungsgemäßen Lichtquel¬ lenvorrichtung; und 5 different representations of a second embodiment of a light source device according to the invention; Fig. 6 various views of a third embodiment of an inventive Lichtquel ¬ lenvorrichtung; and
Fig. 7 verschiedene Darstellungen des bei der in Fig. 6 dargestellten Ausführungsform einer erfindungsgemäßen Lichtquellenvorrichtung verwendeten Hauptkühlkörpers . 7 shows various representations of the main heat sink used in the embodiment of a light source device according to the invention shown in FIG.
Bevorzugte Ausführung der Erfindung Preferred embodiment of the invention
In den nachfolgenden Ausführungen werden für gleiche und gleich wirkende Bauelemente der verschiedenen Ausfüh- rungsbeispiele dieselben Bezugszeichen verwendet. Diese werden der Übersichtlichkeit halber nur einmal einge¬ führt . In the following explanations, the same reference numerals are used for identical and identically acting components of the different embodiments. These are for the sake of clarity only once ¬ introduces.
Die Figuren 2 bis 4 zeigen verschiedene schematische Dar¬ stellungen eines ersten Ausführungsbeispiels einer erfin- dungsgemäßen Lichtquellenvorrichtung. Figures 2 to 4 show various schematic Dar ¬ positions of a first embodiment of a inventions to the invention the light source device.
Hinter einem Array mit einer Vielzahl von LEDs 1 ist ein Hauptkühlkörper 2 angeordnet. Ein Frontkühlkörper ist mit 3 bezeichnet. Der Hauptkühlkörper 2 hat eine Mantelflä¬ che, die einem unregelmäßigen Pyramidenstumpf entspricht. Seine Mantelfläche weist eine Vielzahl von Teilflächen 25a bis 25f auf, wobei die erste Teilfläche 25a parallel zur Anordnungsebene der LEDs 1 orientiert ist. Die zweite Teilfläche 25b schließt einen Winkel von 85° zur ersten Teilfläche 25a ein, die dritte Teilfläche 25c einen Win- kel von 70°, die vierte Teilfläche 25d einen Winkel von 50°, die fünfte Teilfläche 25e einen Winkel von 30°. Die sechste Teilfläche 25f verläuft parallel zur ersten Teil¬ fläche 25a. Die angegebenen Winkel sind lediglich bei- spielhaft und können je nach Anwendungszweck variieren. Durch die unterschiedlichen Winkel kann die Lichtquellenvorrichtung in unterschiedlichen Lagen gegenüber einer Unterlage positioniert werden, so dass auf diese Weise die Abstrahlrichtung der LEDs 1 ebenfalls variiert wird. Um eine Treibervorrichtung 5 thermisch von den LEDs 1 abzutrennen, befindet sie sich auf der von den LEDs abge¬ wandten Seite des Hauptkühlkörpers 2. Der Hauptkühlkörper 2 weist eine Vielzahl von Finnen 6 auf, wodurch die Kon- taktflächen zum Gehäuse 7, 8 der Treibervorrichtung 5 und damit die Wärmeübertragung gering gehalten wird. Im Gehäuse 7, 8 der Treibervorrichtung 5 befindet sich außerdem Platz, um an der Rückseite den Anschluss zur Spannungsversorgung (nicht gezeigt) anzuordnen. Dieser ist bevorzugt schwenkbar ausgebildet, um den unterschied¬ lichen Lagen, in die eine erfindungsgemäße Lichtquellenvorrichtung gegenüber einer Unterlage angeordnet werden kann, Rechnung zu tragen. Behind an array with a plurality of LEDs 1, a main heat sink 2 is arranged. A front heat sink is designated 3. The main heat sink 2 has a Mantelflä ¬ che, which corresponds to an irregular truncated pyramid. Its lateral surface has a plurality of partial surfaces 25a to 25f, wherein the first partial surface 25a is oriented parallel to the arrangement plane of the LEDs 1. The second partial surface 25b encloses an angle of 85 ° to the first partial surface 25a, the third partial surface 25c an angle of 70 °, the fourth partial surface 25d an angle of 50 °, the fifth partial surface 25e an angle of 30 °. The sixth surface portion 25f is parallel to the first part ¬ surface 25a. The specified angles are only playful and can vary depending on the application. Due to the different angles, the light source device can be positioned in different positions relative to a base, so that in this way the emission direction of the LEDs 1 is likewise varied. In order to separate a driving device 5 thermally from the LEDs 1, it is located on the abge ¬ faces of the LED side of the main heat sink 2. The main cooling body 2 has a plurality of fins 6, whereby the contact surfaces to the casing 7, 8 of the driving device 5 and thus the heat transfer is kept low. In the housing 7, 8 of the driver device 5 is also located to place on the back of the connection to the power supply (not shown). This is preferably pivotally arranged to the difference ¬ union layers in which a light source device according to the invention to a backing can be arranged to take into account.
Das Gehäuse 7, 8 der Treibervorrichtung 5 und ein umlau- fender Stoßschutz 9 verhindern, dass der Hauptkühlkörper 2 in direkten Kontakt zur Unterlage kommen kann. Dies ermöglicht ein Einströmen von Luft in die Finnen 6 und verhindert Beschädigungen des Hauptkühlkörpers 2. The housing 7, 8 of the driver device 5 and a circumferential impact protection 9 prevent the main heat sink 2 from coming into direct contact with the substrate. This allows air to flow into the fins 6 and prevents damage to the main heat sink 2.
Ein Griff 10, der Teil des Stoßschutzes 9 ist und auf- grund der asymmetrischen Gewichtsverteilung nicht mittig angeordnet ist, ermöglicht eine Positionierung der Licht¬ quellenvorrichtung ohne die erwärmten Kühlkörper 2, 3 zu berühren . A handle 10, part of the surge protection 9 and Because of the asymmetric weight distribution is not arranged centrally, enables positioning of the light source device ¬ without the heated cooling bodies 2, 3 to touch.
Die Lichtquellenvorrichtung kann entsprechend verschiede- ner Sicherheitsklassen aufgebaut werden. So kann von der Treibervorrichtung 5 bereits eine berührbare Versorgungs¬ spannung zur Verfügung gestellt werden. Es kann aber auch das LED-Substrat, das heißt die Platine 11, so isoliert werden, dass die einschlägigen Vorschriften erfüllt wer- den. Dies kann beispielsweise mittels Keramik oder auch unter Verwendung von FR4-Platinen geschehen. Anstelle der im Ausführungsbeispiel dargestellten einen Platine 11 können auch mehrere Einzelplatinen verwendet werden. The light source device can be constructed according to various security classes. So can from the Driver device 5 already a touchable supply ¬ voltage are provided. However, it is also possible for the LED substrate, that is to say the printed circuit board 11, to be isolated in such a way that the relevant regulations are met. This can be done for example by means of ceramic or even using FR4 boards. Instead of a circuit board 11 shown in the embodiment, a plurality of individual boards can be used.
In dem in den Figuren dargestellten Ausführungsbeispiel wird eine doppelte Isolierung durch Verwendung einer FR4- Platine und eines untergelegten Thermal-Interface- Materials (TIM) 12 gewährleistet. Die LEDs 1, vorliegend werden Einzel-LEDs verwendet, jedoch sind auch Multichip- LEDs einsetzbar, sind auf dem Substrat 11 aufgebracht, welches wiederum über das TIM 12 mit dem Hauptkühlkörper 2 verbunden ist. Die Abwärme der LEDs 1 wird auf diesem Weg in den Hauptkühlkörper 2 abgeleitet. Ebenso wird wie¬ derum über das TIM 12 auch der Frontkühlkörper 3 thermisch angebunden. Um die Verbindung beider Kühlkörper 2, 3 zu gewährleisten, sind diese fest miteinander verbunden, vorliegend mittels einer Verschraubung 13. Aufgrund dieser Fixierung ergibt sich sowohl für den umlaufenden Stoßschutz 9 als auch für die innen liegende Konstruktion ein definierter Abstand, in welchem die Komponenten positioniert werden müssen. Zur Berücksichtigung von Fertigungstoleranzen finden vorliegend elastische Komponenten Anwendung. In the embodiment shown in the figures, a double insulation is ensured by using a FR4 board and an underlying thermal interface material (TIM) 12. The LEDs 1, in this case single LEDs are used, but also multi-chip LEDs are used, are applied to the substrate 11, which in turn is connected via the TIM 12 to the main heat sink 2. The waste heat of the LEDs 1 is derived in this way in the main heat sink 2. As well as ¬ derum is also of the front radiator 3 thermally connected via the TIM 12th In order to ensure the connection of the two heat sink 2, 3, they are firmly connected to each other, in this case by means of a screw 13. Due to this fixation results for both the circumferential impact protection 9 as well as for the internal construction a defined distance in which positions the components Need to become. To take account of manufacturing tolerances find here elastic components application.
Einen bedeutenden Teil der Anpassung übernimmt das TIM 12. Zusätzlich übernimmt das TIM 12 neben der Anbindung der Platine 11 an den Hauptkühlkörper 2 und der Verbin- dung beider Kühlkörper 2, 3 auch die Aufgabe der Abdichtung gegen Feuchtigkeit. The TIM 12 takes on a significant part of the adaptation. In addition to the connection of the circuit board 11 to the main heat sink 2 and the connection Both heat sink 2, 3 and the task of sealing against moisture.
Zum Ausgleich von Fertigungstoleranzen ist der Stoßschutz 9 aus zwei verschiedenen Kunststoffen gefertigt, einem festen und einem elastischen. Der elastische Teil stellt die Fixierung zwischen den Kühlkörpern 2, 3 sicher. Dabei können kleine Spitzen an den Kühlkörpern 2, 3 vorgesehen sein, welche sich in den Stoßschutz 9 bohren, oder kleine Spitzen am Stoßschutz, welche sich bei der Fixierung ver- biegen. To compensate for manufacturing tolerances of the shock protection 9 is made of two different plastics, a solid and an elastic. The elastic part ensures the fixation between the heat sinks 2, 3. In this case, small tips can be provided on the heat sinks 2, 3, which drill into the impact protection 9, or small tips on the impact protection, which bend during fixation.
Die Fixierung der Komponenten zueinander wird hinsichtlich der innen liegenden Elemente der Lichtquellenvorrichtung von einem Dichtungsring 15 erfüllt, der zwischen dem Frontkühlkörper 3 und einer durchsichtigen Scheibe 14 angeordnet ist. Der Dichtungsring 15 fixiert die Scheibe 14, einen Abstandshalter 16 sowie die Platine, das heißt das Substrat 11, zwischen den Kühlkörpern 2, 3. Der Dichtungsring 15 verhindert überdies das Eintreten von Feuchtigkeit an dieser Stelle. Der Abstandshalter 16 positioniert die Scheibe 14 und verhindert einen Kontakt mit dem Frontkühlkörper 3, was insbesondere bei Verwendung von Glas für die Scheibe 14 von Bedeutung ist. Zwischen der Scheibe 14 und dem Abstandshalter 16 können weitere Elemente mit optischen Ei- genschaften, beispielsweise Linsen, Reflektoren und dergleichen, angeordnet sein. The fixation of the components with respect to the inner elements of the light source device is fulfilled by a sealing ring 15, which is arranged between the front cooling body 3 and a transparent plate 14. The sealing ring 15 fixes the disc 14, a spacer 16 and the board, that is, the substrate 11, between the heat sinks 2, 3. The sealing ring 15 also prevents the entry of moisture at this point. The spacer 16 positions the disc 14 and prevents contact with the front heat sink 3, which is particularly important when using glass for the disc 14. Between the disk 14 and the spacer 16 further elements with optical properties, for example lenses, reflectors and the like, can be arranged.
Verbindungsleitungen zwischen der Treibervorrichtung 5 und dem Substrat 11 mit den LEDs 1 verlaufen in einem Kunststoffkanal 17. Dieser Kanal 17 ragt durch den Haupt- kühlkörper 2, das TIM 12 und das Substrat 11 in einen Hohlraum unterhalb des Abstandshalters 16. Würde der Frontkühlkörper 3 über den Abstandshalter 16 hinausragen, würde der Abstandshalter 16 die Isolierung zum Kühlkörper 3 gewährleisten. In diesem Hohlraum werden die Leitungen mit dem Substrat 11 verbunden. Connecting lines between the driver device 5 and the substrate 11 with the LEDs 1 extend in a plastic channel 17. This channel 17 projects through the main heat sink 2, the TIM 12 and the substrate 11 into one Cavity below the spacer 16. If the front heat sink 3 protrude beyond the spacer 16, the spacer 16 would ensure the insulation to the heat sink 3. In this cavity, the lines are connected to the substrate 11.
Werden an dieser Stelle Sicherheitsabstände benötigt, so können in den Kanal 17 Abstufungen 18 eingebracht werden, die diese Abstände gewährleisten. Alternativ oder zusätzlich kann eine Aussparung 19 im Kühlkörper 2 zur Sicher- Stellung dieser Abstände vorgesehen sein. If safety distances are required at this point, 17 steps 18 can be introduced into the channel, which ensure these distances. Alternatively or additionally, a recess 19 may be provided in the heat sink 2 for securing these distances.
Um die Dichtigkeit an dieser Stelle zu gewährleisten, kann an dem Kanal 17 ein weiterer Dichtungsring aufgebracht werden. Um das Austreten von Feuchtigkeit zu ge¬ währleisten, kann an beliebiger Stelle eine feuchtig- keitsdurchlässige Membran, insbesondere eine Goretex- Membran, eingebracht werden. In order to ensure the tightness at this point, a further sealing ring can be applied to the channel 17. To the escape of moisture to ge ¬ währleisten, can be placed anywhere a moisture-keitsdurchlässige membrane, in particular a Goretex membrane, are introduced.
Fig. 5 zeigt ein zweites Ausführungsbeispiel einer erfin¬ dungsgemäßen Lichtquellenvorrichtung. Dabei ist der Abstandshalter 16 und der Stoßschutz 9 in einem Teil ver- eint. Der Raum für den Anschluss der LEDs 1 befindet sich unter einer Abdeckung 20, der ebenfalls Teil des Elements 9, 16 ist. Fig. 5 shows a second embodiment of an OF INVENTION ¬ to the invention the light source device. In this case, the spacer 16 and the impact protector 9 are united in one part. The space for the connection of the LEDs 1 is located under a cover 20, which is also part of the element 9, 16.
Der Anschluss 21 an eine Spannungsversorgung ist schwenk bar ausgeführt, wodurch die Lichtquellenvorrichtung über dies auf die Rückseite gelegt werden kann. The terminal 21 to a power supply is designed swivel bar, whereby the light source device can be placed over this on the back.
Im Stoßschutz 9 können seitliche Kopplungsvorrichtungen 22 vorgesehen sein, welche eine Kopplung mehrerer Lichtquellenvorrichtungen miteinander ermöglichen. In Fig. 6 ist ein drittes Ausführungsbeispiel einer er¬ findungsgemäßen Lichtquellenvorrichtung dargestellt, bei dem der Hauptkühlkörper 2, siehe Fig. 7, besonders vorteilhaft ausgeführt ist. Wie besonders deutlich Fig. 7 entnommen werden kann, erstrecken sich die Finnen 6 radial zu einer Aussparung 23. Die Aussparung 23 ist dort angeordnet, wo diese Teilflächen 25b, 25c, 25d, 25e ohne Aussparung zusammenlaufen würden. Jede Finne 6 weist ein äußeres und ein zum Zentrum des Hauptkühlkörpers 2 orien¬ tiertes inneres Ende auf, wobei die inneren Enden benach¬ barter Finnen 6 einen vorgebbaren Mindestabstand aufweisen. Dieser vorgebbare Mindestabstand wird durch Variati¬ on der Länge der jeweiligen Finnen 6 eingestellt. Bei dieser Ausführungsform wird unabhängig von der Lage der Lichtquellenvorrichtung eine Kaminwirkung erzielt, wodurch eine besonders hohe Kühlleistung in allen Lagen der Lichtquellenvorrichtung ermöglicht wird. In the impact protection 9 lateral coupling devices 22 may be provided, which allow a coupling of multiple light source devices with each other. FIG. 6 shows a third exemplary embodiment of a light source device according to the invention, in which the main heat sink 2, see FIG. 7, is designed to be particularly advantageous. As can be seen particularly clearly in FIG. 7, the fins 6 extend radially to a recess 23. The recess 23 is arranged where these partial surfaces 25b, 25c, 25d, 25e would converge without recess. Each fin 6 has an outer and an the center of the main cooling body 2 orien ¬ patented inner end, said inner ends Benach ¬ barter fins 6 have a predetermined minimum distance. This predetermined minimum distance is set by Variati ¬ on the length of the respective fins 6. In this embodiment, regardless of the position of the light source device a chimney effect is achieved, whereby a particularly high cooling capacity is made possible in all layers of the light source device.

Claims

Ansprüche claims
Lichtquellenvorrichtung mit Light source device with
- mindestens einer LED (1) mit einer Lichtab¬ strahlseite und einer der Lichtabstrahlseite gegenü¬ berliegenden Rückseite, wobei die mindestens eine LED (1) auf einer Platine (11) angeordnet ist; - At least one LED (1) with a Lichtab ¬ beam side and the Lichtabstrahlseite gegenü ¬ overlying back, wherein the at least one LED (1) on a circuit board (11) is arranged;
- mindestens einem Hauptkühlkörper (2) , der mit der Rückseite der mindestens einen LED (1) gekoppelt ist; und  - At least one main heat sink (2) which is coupled to the back of the at least one LED (1); and
- einer Treibervorrichtung (5) zum Betreiben der mindestens einen LED (1) , wobei die Treibervorrichtung (5) mindestens einen Anschluss (21) zum Koppeln mit einer Spannungsversorgung aufweist;  - A driver device (5) for operating the at least one LED (1), wherein the driver device (5) has at least one terminal (21) for coupling to a power supply;
dadurch gekennzeichnet,  characterized,
dass die Lichtquellenvorrichtung weiterhin einen Frontkühlkörper (3) umfasst, der thermisch mit dem Hauptkühlkörper (2) gekoppelt ist.  in that the light source device further comprises a front heat sink (3) which is thermally coupled to the main heat sink (2).
Lichtquellenvorrichtung nach Anspruch 1, Light source device according to claim 1,
dadurch gekennzeichnet,  characterized,
dass der Frontkühlkörper (3) eine nicht mit dem Haupt kühlkörper (2) gekoppelte Abstrahloberfläche aufweist wobei der Frontkühlkörper (3) derart angeordnet ist dass die Abstrahloberfläche zur Lichtabstrahlseite de mindestens einen LED (1) orientiert ist.  in that the front heat sink (3) has an emission surface not coupled to the main heat sink (2), wherein the front heat sink (3) is arranged such that the emission surface is oriented toward the light emission side of at least one LED (1).
3. Lichtquellenvorrichtung nach einem der Ansprüche 1 oder 2, 3. Light source device according to one of claims 1 or 2,
dadurch gekennzeichnet, dass die Platine (11) über ein thermisches Interface- Material (12) mit dem Hauptkühlkörper (2) gekoppelt ist, das insbesondere elastisch ausgebildet ist. characterized, the printed circuit board (11) is coupled via a thermal interface material (12) to the main heat sink (2), which in particular is designed to be elastic.
Lichtquellenvorrichtung nach einem der vorhergehenden Ansprüche, Light source device according to one of the preceding claims,
dadurch gekennzeichnet, characterized,
dass der Frontkühlkörper (3) über ein thermisches Interface-Material (12) mit dem Hauptkühlkörper (2) gekoppelt ist, das insbesondere elastisch ausgebildet ist . the front cooling body (3) is coupled via a thermal interface material (12) to the main cooling body (2), which is in particular elastically formed.
Lichtquellenvorrichtung nach einem der vorhergehenden Ansprüche, Light source device according to one of the preceding claims,
dadurch gekennzeichnet, characterized,
dass der Hauptkühlkörper (2) eine umlaufende Sto߬ schutzvorrichtung (9), insbesondere aus Kunststoff, aufweist . that the main cooling body (2) has a circumferential butt ¬ protection device (9), particularly made of plastic.
Lichtquellenvorrichtung nach Anspruch 5, Light source device according to claim 5,
dadurch gekennzeichnet, characterized,
dass die Stoßschutzvorrichtung (9) eine erste, den Haupt- (2) und den Frontkühlkörper (3) kontaktierende Komponente und eine zweite, die Außenoberfläche der Stoßschutzvorrichtung (9) bildende Komponente auf¬ weist, wobei die erste Komponente aus einem elasti¬ scheren Material besteht als die zweite Komponente. Lichtquellenvorrichtung nach einem der Ansprüche 5 oder 6, that the impact protection device (9) comprises a first, the main (2) and the front heat sink comprises (3) contacting component and component forming a second, outer surface of the impact protection device (9) on ¬, wherein the first component of an elasti ¬ shear material exists as the second component. Light source device according to one of claims 5 or 6,
dadurch gekennzeichnet, dass in der Stoßschutzvorrichtung (9) ein Griff (10) ausgebildet ist. characterized, in that a handle (10) is formed in the impact protection device (9).
8. Lichtquellenvorrichtung nach einem der Ansprüche 5 bis 7 , 8. Light source device according to one of claims 5 to 7,
dadurch gekennzeichnet,  characterized,
dass in der Stoßschutzvorrichtung (9) mindestens eine Kopplungsvorrichtung (22) zum mechanischen und / oder elektrischen Koppeln mehrerer Lichtquellenvorrichtungen angeordnet ist. 9. Lichtquellenvorrichtung nach einem der vorhergehenden Ansprüche ,  in that at least one coupling device (22) for mechanically and / or electrically coupling a plurality of light source devices is arranged in the impact protection device (9). 9. Light source device according to one of the preceding claims,
dadurch gekennzeichnet,  characterized,
dass die Treibervorrichtung (5) auf der Seite des Hauptkühlkörpers (2) angebracht ist, die nicht mit dem Frontkühlkörper (3) gekoppelt ist.  the driver device (5) is mounted on the side of the main heat sink (2) which is not coupled to the front heat sink (3).
10. Lichtquellenvorrichtung nach einem der vorhergehenden Ansprüche, 10. Light source device according to one of the preceding claims,
dadurch gekennzeichnet,  characterized,
dass sie weiterhin einen Kanal (17) umfasst, in dem Verbindungsleitungen, die die Platine (11) mit der in that it further comprises a channel (17) in which connecting lines connecting the board (11) to the
Treibervorrichtung (5) verbinden, angeordnet sind. Driver device (5) connect, are arranged.
EP12756145.4A 2011-08-26 2012-08-24 Light source device Not-in-force EP2748527B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011081672A DE102011081672A1 (en) 2011-08-26 2011-08-26 Light source device
PCT/EP2012/066488 WO2013030104A2 (en) 2011-08-26 2012-08-24 Light source device

Publications (2)

Publication Number Publication Date
EP2748527A2 true EP2748527A2 (en) 2014-07-02
EP2748527B1 EP2748527B1 (en) 2015-11-25

Family

ID=46801465

Family Applications (2)

Application Number Title Priority Date Filing Date
EP12756145.4A Not-in-force EP2748527B1 (en) 2011-08-26 2012-08-24 Light source device
EP12756144.7A Active EP2748515B1 (en) 2011-08-26 2012-08-24 Light source device

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP12756144.7A Active EP2748515B1 (en) 2011-08-26 2012-08-24 Light source device

Country Status (3)

Country Link
EP (2) EP2748527B1 (en)
DE (1) DE102011081672A1 (en)
WO (2) WO2013030104A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013007270U1 (en) 2013-08-10 2014-11-13 Robert Diebolder Work lamp with different beam angles
CN206410090U (en) 2015-12-10 2017-08-15 米沃奇电动工具公司 Floodlight
CN117091106B (en) * 2023-09-04 2024-04-09 大连宗益科技发展有限公司 Airport runway navigation aid lamp

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6629767B2 (en) * 2001-08-24 2003-10-07 Eveready Battery Company, Inc. Lighting device
TWM321582U (en) * 2007-03-01 2007-11-01 Edison Opto Corp Heat sink structure for light source device
US7744250B2 (en) * 2007-07-12 2010-06-29 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. LED lamp with a heat dissipation device
DE202008003496U1 (en) * 2008-03-10 2008-05-08 Aeon Lighting Technology Inc., Chung-Ho City LED street lamp
CN102089567B (en) * 2008-07-07 2014-02-26 松下电器产业株式会社 Bulb-type lighting source
DE202009004191U1 (en) * 2009-03-25 2009-06-04 Pyroswift Holding Co., Ltd., Wanchai LED lighting device
EP2457018A4 (en) * 2009-07-21 2014-10-15 Cooper Technologies Co Interfacing a light emitting diode (led) module to a heat sink assembly, a light reflector and electrical circuits
CA2684301A1 (en) * 2009-11-03 2011-05-03 Wayne Ernest Conrad Led light bulb
US8220961B2 (en) * 2009-11-10 2012-07-17 General Electric Company LED light fixture
DE102010001047A1 (en) * 2010-01-20 2011-07-21 Osram Gesellschaft mit beschränkter Haftung, 81543 lighting device
DE102010001046A1 (en) * 2010-01-20 2011-07-21 Osram Gesellschaft mit beschränkter Haftung, 81543 lighting device
US20110182053A1 (en) * 2010-01-27 2011-07-28 Mujibun Nisa Khan Omni-directional and multi-directional light-emitting diode (LED) lamp designs with multiple discrete LEDs on multiple facets

Also Published As

Publication number Publication date
WO2013030099A1 (en) 2013-03-07
WO2013030104A3 (en) 2013-04-25
WO2013030104A2 (en) 2013-03-07
EP2748527B1 (en) 2015-11-25
EP2748515A1 (en) 2014-07-02
EP2748515B1 (en) 2016-09-28
DE102011081672A1 (en) 2013-02-28

Similar Documents

Publication Publication Date Title
DE102009008096B4 (en) Heat sink for a lighting device
EP2401543B1 (en) Outdoor lighting unit
EP2436974B1 (en) LED luminaire
DE102008052869B4 (en) Luminaire with LED mounting rail
EP1721102B1 (en) Lamp
EP2307790B1 (en) Lamp and use of a lamp
EP2404110B1 (en) Lighting device with at least one heat sink
EP2175499B1 (en) Semi-conductor radiation source
DE102006015377A1 (en) Semiconductor radiation source and light curing device
DE112015004420B4 (en) LED BULB
DE102006018668A1 (en) Modular lighting system has multiple light modules which have lighting body for receiving light-emitting diode module and assembly recesses are formed at lighting body
EP2414727A1 (en) Lighting device and lamp comprising said lighting device
DE102011008474A1 (en) Operating light with LED orientation by means of positive locking
DE112011106000T5 (en) Thermal management for LEDs
EP2236912A2 (en) Luminaire
EP2748527B1 (en) Light source device
EP2270387A1 (en) LED flat light
AT524690B1 (en) LAMPS WITH LED
DE102008003703B4 (en) Luminaire with a luminaire housing in the form of a hollow profile
EP1362205B1 (en) Blister lights used for signalling and/or marking purposes
EP2171352B1 (en) Lamp
DE202009005266U1 (en) LED lamp with high heat dissipation and safety
DE202013102667U1 (en) Lamp housing with heat dissipation structure
DE202017006973U1 (en) lighting device
DE102017109840B4 (en) LED retrofit lamp and heat sink for a LED retrofit lamp

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20140326

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: F21S 6/00 20060101ALN20150626BHEP

Ipc: F21W 131/10 20060101ALN20150626BHEP

Ipc: F21V 29/76 20150101ALI20150626BHEP

Ipc: F21V 15/04 20060101AFI20150626BHEP

Ipc: F21Y 101/02 20060101ALN20150626BHEP

Ipc: F21V 29/71 20150101ALI20150626BHEP

INTG Intention to grant announced

Effective date: 20150729

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 762812

Country of ref document: AT

Kind code of ref document: T

Effective date: 20151215

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502012005364

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BOVARD AG, CH

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20160225

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160325

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160225

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160325

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160226

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502012005364

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20160826

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160824

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160824

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20170821

Year of fee payment: 6

Ref country code: GB

Payment date: 20170822

Year of fee payment: 6

Ref country code: IT

Payment date: 20170828

Year of fee payment: 6

Ref country code: FR

Payment date: 20170822

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20120824

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151125

REG Reference to a national code

Ref country code: CH

Ref legal event code: PK

Free format text: BERICHTIGUNGEN

RIC2 Information provided on ipc code assigned after grant

Ipc: F21V 29/71 20150101ALI20150626BHEP

Ipc: F21S 6/00 20060101ALN20150626BHEP

Ipc: F21Y 101/02 20000101ALN20150626BHEP

Ipc: F21V 15/04 20060101AFI20150626BHEP

Ipc: F21V 29/76 20150101ALI20150626BHEP

Ipc: F21W 131/10 20060101ALN20150626BHEP

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20180824

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180824

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180824

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502012005364

Country of ref document: DE

Representative=s name: BOEHMERT & BOEHMERT ANWALTSPARTNERSCHAFT MBB -, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 502012005364

Country of ref document: DE

Owner name: SITECO GMBH, DE

Free format text: FORMER OWNER: OSRAM GMBH, 80807 MUENCHEN, DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: PC

Ref document number: 762812

Country of ref document: AT

Kind code of ref document: T

Owner name: SITECO GMBH, DE

Effective date: 20210629

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20210818

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20210819

Year of fee payment: 10

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502012005364

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 762812

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220824

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220824

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230301