EP2827055B1 - Luminaire with a luminous device - Google Patents

Luminaire with a luminous device Download PDF

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Publication number
EP2827055B1
EP2827055B1 EP14177081.8A EP14177081A EP2827055B1 EP 2827055 B1 EP2827055 B1 EP 2827055B1 EP 14177081 A EP14177081 A EP 14177081A EP 2827055 B1 EP2827055 B1 EP 2827055B1
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EP
European Patent Office
Prior art keywords
lighting device
support body
circuit board
board
end cap
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.)
Active
Application number
EP14177081.8A
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German (de)
French (fr)
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EP2827055A1 (en
Inventor
Dirk Mania
Andreas Lebherz
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.)
RIDI Leuchten GmbH
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RIDI Leuchten GmbH
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Publication date
Application filed by RIDI Leuchten GmbH filed Critical RIDI Leuchten GmbH
Priority to PL14177081T priority Critical patent/PL2827055T3/en
Publication of EP2827055A1 publication Critical patent/EP2827055A1/en
Application granted granted Critical
Publication of EP2827055B1 publication Critical patent/EP2827055B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/02—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes

Definitions

  • the present invention relates to a lighting device for use in a luminaire.
  • the invention also relates to a luminaire which is equipped with at least one such luminous device.
  • a luminaire usually has at least one lighting device for generating light.
  • the lighting device may itself be a light-generating means or at least have such a light source. If the lighting device is exchangeably attachable to a lamp housing of the lamp, the lighting device may also be referred to below as a lamp.
  • LED stands in the usual way for light-emitting diode. LEDs are characterized by an extremely long life and low energy consumption.
  • rod-shaped lighting devices As a substitute for fluorescent tubes rod-shaped lighting devices can be used, which have a rectilinear board, which carries a plurality of LEDs.
  • the life of such electronic bulbs depends strongly on the heat to which they are exposed. LEDs generate heat during their operation, which must be dissipated as efficiently as possible. Furthermore, the power electronics required to operate the LEDs also generate comparatively much waste heat, which must be dissipated and which also has to be kept away from the LEDs. To achieve sufficient cooling, can be comparatively large heatsinks are used, which light fixtures, which are equipped with LEDs, build comparatively large. In particular, rod-shaped lighting devices are also difficult, which makes it not readily possible to electrically and mechanically connect them in a conventional manner with a lamp housing.
  • the lighting devices also operate at normal mains voltages, ie at about 230 V AC (AC voltage), there is also the problem that there is a predetermined minimum distance between the current-carrying components of the lighting device, which are located on the board, and a cover covering the board must be in order to prevent a spark discharge in the event of contact of the housing of the cover by a person. Thus, such lighting devices also build comparatively large for this reason.
  • the present invention is concerned with the problem of providing for a lighting device of the type described above or for an associated light an improved embodiment, which is characterized in particular by an inexpensive manufacturability.
  • the invention also deals with the problem of realizing the lighting device as compact as possible and preferably to facilitate a simplified handling.
  • the compact design is intended to show in particular by a comparatively small cross section of the substantially rod-shaped lighting device and by a reduced weight of the lighting device.
  • the invention is based on the general idea to realize a rod-shaped lighting device by means of a rectilinear and elongate support body and a rectilinear and elongated cover which is fixed to the support body and thereby covers a arranged on the support body board.
  • the lighting device comprises two end caps, namely a first end cap and a second end cap, which are axially attached to the two longitudinal ends of the unit of support body and cover.
  • the first end cap is equipped with electrical connection elements which are electrically connected to the circuit board and with which an electrical and mechanical connection of the lighting device with a first socket, preferably a light housing of a lamp, are provided.
  • the second end cap is provided with mechanical fasteners which are not electrically connected to the board and are provided only for mechanically connecting the lighting device to a second socket, preferably said lamp housing.
  • the lighting device thereby has an extremely simple structure, since the electrical contact with an external electrical power supply takes place only at one of its longitudinal ends.
  • a “rectilinear body” in the present context is a body whose longitudinal central axis defines a straight line in space.
  • An “elongated body” in the present context is a body whose length measured in the longitudinal direction is greater than a width and height of the body measured transversely to the longitudinal direction. In particular, the body is at least twice and preferably at least ten times longer than it is wide and tall.
  • the contact surface is convexly curved in the cross section measured transversely to the longitudinal direction of the support body.
  • the board is preferably biased or pressed against the holding area or to the contact surface, whereby a large-area contact is supported.
  • the bias reduces residual gaps and thereby improves heat transfer.
  • the curved contact surface in conjunction with a marginal fixation of the board on the holding area.
  • a holding web can be provided along longitudinal side edges of the board, with the aid of which the board is pressed against the contact surface.
  • the board can be bent elastically complementary to the contact surface, whereby it comes to the prestressed, areal contacting along the curved contact surface.
  • the curvature of the contact surface eliminates form tolerances that could hinder an intensive planar contact with a flat design.
  • the lighting device may be configured as ELV lighting device or as SELV lighting device.
  • ELV stands for Extra Low Voltage and is limited to voltages of 50 V AC (AC voltage) and 120 V DC (DC voltage). Such extra-low voltages are largely harmless for adult persons, even on permanent contact.
  • SELV stands for Safety Extra Low Voltage and describes a voltage range up to a maximum of 24 V AC and 60 V DC. Such minimal voltages are safe for children and animals on permanent contact.
  • the design of the lighting device as an electronic component with ELV and preferably with SELV allows a drastic reduction in size.
  • the heat development can be reduced by the limited voltage.
  • the distance to be maintained between the board and the cover greatly decreases with limited voltage.
  • the distance between the board and cover can be so greatly reduced that for the lighting device a total of a relatively small cross-section can be realized.
  • the lighting device can be realized significantly more compact.
  • this also allows the support body to be dimensioned correspondingly smaller, whereby a relatively large amount of weight can be saved overall. Reduced weight simplifies the design of the required sockets and the required connecting elements, whereby these components are simpler and thus less expensive to implement.
  • the lighting device can also be configured without protective conductor, that is without grounding or without grounding. This is especially possible if the luminaire is designed as a SELV component and is not intended for use in a damp room. By eliminating a ground, the electrification of the lighting device can be further simplified, whereby the production of the lighting device and an associated light is cheaper.
  • the connecting elements of the two end caps may be geometrically different. In this way, a confusion-proof installation in the associated versions can be simplified. This reduces in particular the assembly effort, which is also advantageous in an initial installation of the lighting device as in an exchange of the lighting device.
  • the support body is preferably a metal body, whereby it acts in addition to its support function as a heat sink to absorb and dissipate heat generated on the board can.
  • the support body is a metallic extruded profile, which can be particularly easily configured as an efficient heat sink.
  • the extruded profile can basically be an extrusion profile, but preferably an extruded profile.
  • Light metals or light metal alloys such as, for example, aluminum or aluminum alloys, are preferably used.
  • the support body is a parallel to the longitudinal direction of the support body extending channel, engages in the front side per a fastener for securing the respective end cap on the support body axially.
  • the support body serves in this way in addition to the setting or carrying the board, also for securing the end caps.
  • the channel which is preferably integrally formed on the support body, is combined with the respective fastening element.
  • the respective fastening element can in principle be integrally formed on the respective end cap.
  • a separate fastener can be used. This is preferably a pin-shaped fastening element, for example in the form of a screw or a notched pin.
  • the channel is open radially.
  • the radially open channel provides more surface area created for heat radiation, which improves the efficiency of the support body as a heat sink.
  • the LEDs are expedient be arranged on a front side of the board along a rectilinear row, which is preferably arranged centrally with respect to a transverse direction of the board.
  • a central arrangement accordingly, only a single row of LEDs is arranged on the circuit board.
  • the board builds comparatively small in its transverse direction, whereby ultimately the rod-shaped lighting device has a small cross section and thus a compact design.
  • a circuit board in which two or more such linear LED rows are arranged side by side, which run parallel to the longitudinal direction of the board.
  • the support body can have a cooling web in the region of the LED row, ie preferably in the center, a cooling web which is integrally formed on the support body and protrudes transversely with respect to the printed circuit board and away from the printed circuit board.
  • the functioning as a heat sink support body can absorb and dissipate very much heat with the help of such a cooling bar, especially in the field of LED row.
  • just that portion of the board is particularly intensively cooled, in which the most heat is generated during operation of the lighting device.
  • this cooling bar can form the aforementioned channel, whereby in this area of the support profile a comparatively high functional density is achieved, which ultimately supports a compact design and inexpensive production.
  • the cooling web in the support body can separate two hollow chambers from each other.
  • the supporting body With only one cooling bar, the supporting body can thereby form a two-chamber hollow profile, which has a comparatively large surface area for heat radiation.
  • a high transverse stability and rigidity for the support body is realized.
  • the support body along each of opposite longitudinal sides of the holding portion each have a holding web to which the cover is attached.
  • the attachment of the cover is immediately adjacent to the holding area and thus proximal to the board, whereby the lighting device is very compact.
  • the respective holding web integrally on the support body.
  • the two holding webs can be formed in the production of the support body as extruded profile.
  • the support body may again have such retaining webs, wherein the respective retaining web in this case overlap a longitudinal side edge of the board and so attach the board to the support body and can press it.
  • separate holding webs may be provided on the support body for attaching the cover and for securing the board.
  • the same holding webs on the one hand serve to attach the cover and on the other hand serve to fix the circuit board.
  • the respective retaining web receives a double function, since it serves on the one hand for fastening the cover and on the other hand for securing the Board is used.
  • the respective retaining web for securing and pressing the board on the support body may be plastically deformed.
  • the holding webs are reshaped so that they then overlap each one longitudinal side edge of the board and thereby press the board against the support body and fix it.
  • the respective retaining web can extend substantially uninterrupted over the entire length of the board, so that the board is pressed along its entire length at both longitudinal side edges against the supporting body and bears biased against it. This makes it possible to realize a particularly intense heat transfer between the board and the support body.
  • additional heat conduction which can be arranged in a conventional construction between the board and the support body to improve the heat conduction.
  • the respective holding web may have a gripping area for reaching over the board and a clip area for clipping the cover.
  • the cover after attaching the board is particularly easy to attach to the retaining webs. In particular, this tool-free attachment is possible.
  • the support body may extend over a circumference of the lighting device over more than 180 °. hereby takes the support body, which preferably serves as a heat sink, a relatively large proportion of the cross section of the lighting device, namely at least 50%. As a result, a particularly efficient cooling effect can be realized.
  • the support body can directly form a part, preferably a substantial proportion, the outer contour of the lighting device.
  • a substantial proportion in the present context is a share of at least 50%. It is important in this embodiment that the support body directly forms part of the outer contour of the lighting device, whereby the preferably serving as a heat sink supporting body can radiate the heat absorbed directly into an environment of the lighting device.
  • the lighting device has no further housing, which encloses the support body from the outside.
  • a lamp according to the invention is equipped with at least one lighting device of the type described above. Furthermore, such a luminaire comprises a luminaire housing which has the associated first version and the associated second view for the respective luminous device. According to the invention, the respective lighting device is thereby electrically and mechanically connected to the lamp housing via the first socket, while it is only mechanically connected to the lamp housing via the second socket.
  • the electrical connection of the lighting device to the lamp housing means an electrical contact of the lighting device with power electronics for operating the lighting device, which is arranged in the lamp housing.
  • the sockets can have receptacles for the connecting elements of the end caps, which are geometrically are different. In this way, a confusion-proof installation of the lighting device is ensured.
  • the sockets can be designed so that the lighting device with respect to its longitudinal central axis must be applied radially to the lamp housing to introduce the connecting elements of the end caps radially into the receptacles of the versions. Subsequently, the lighting device is rotated about its longitudinal central axis by about 90 °. The recordings rotate within the sockets and can lock into place when the final assembly position is reached.
  • the sockets can be designed according to an advantageous embodiment so that they allow a so-called "top test". At least the first version can be designed for such a top test.
  • measuring electrodes of a measuring device can be electrically contacted through a housing recess with the electrical contacts of the socket in order to test the lamp or the lighting device inserted in the sockets.
  • FIG. 1 comprises a lamp 1, a lamp housing 2 to which appropriate holders, namely a first holder 3 and a second holder 4, a lighting device 5 can be attached, which can also be referred to as a lamp 5.
  • the lighting device 5 has according to the Fig. 6a to 6d preferably a round and substantially circular cross-section.
  • the brackets 3, 4 are provided with corresponding versions, namely with a first version 6 in the first holder 3 and a second version 7 in the second holder 4.
  • power electronics for operating the lighting device 5 may be housed.
  • the luminaire housing 2 is used, for example, for a ceiling mounting of the lamp 1.
  • the lamp 1 is configured so that only a single lighting device 5 can be attached thereto. It is clear that in another embodiment, the lamp 1 or its luminaire housing 2 may be configured so that it also two or more such lighting devices 5 can be attached.
  • FIGS. 1 to 5 includes the respective, rod-shaped and rectilinear and elongated lighting device 5 in the FIGS. 2 to 5 recognizable rectilinear board 8, which carries a plurality of light-emitting diodes, ie LEDs 9.
  • the term "LED” in the present context also includes “OLEDs", where "OLED” stands for organic LED.
  • the lighting device 5 comprises a rectilinear and elongate support body 10, one in the FIGS. 1 to 3 recognizable, straight and elongate cover 11, two end caps, namely a first end cap 12 and a second end cap 13th
  • the support body 10 has according to the FIGS. 6a to 6d a holding portion 14 for the arrangement of the board 8.
  • the cover 11 is according to FIG. 6d attached to the support body 10.
  • the first end cap 12 at a first longitudinal end 15 of the lighting device 5 axially, so attached coaxially to a longitudinal central axis of the lighting device 5 on the support body 10 and on the cover 11.
  • the first end cap 12 has two, preferably exactly two, electrical connection elements 16, which with the board 8 are electrically connected.
  • These electrical connection means 16 are facing outward, ie away from the support body 10 and facing away from the cover 11 axially from the first end cap 12 and are designed for electrical and mechanical connection of the lighting device 5 with the first version 6.
  • This first version 6 is connected in the assembled state of the lamp 1 in a conventional manner to an electrical power supply, for example to a power grid.
  • the second end cap 13 is axially attached to the support body 10 and the cover 11 at a second longitudinal end 17 of the lighting device 5.
  • the second end cap 13 has according to FIG. 3 two, preferably only two, mechanical connecting elements 18 which protrude axially from the second end cap 13 to the outside.
  • the mechanical connecting elements 18 serve for mechanically connecting the lighting device 5 to the second socket 7, which is arranged axially opposite the first socket 6.
  • the electrical power supply of the lighting device 5 presented here takes place exclusively via the electrical connection elements 16 of the first end cap 12.
  • the lighting device 5 presented here can in principle be designed for normal mains voltages, ie up to 230 V AC.
  • the lighting device 5 is designed as an ELV device which is operated with a maximum of 50 V AC or a maximum of 120 V DC.
  • a design of the lighting device 5 is a SELV device, which is operated at a maximum of 24 V AC or 60 V DC.
  • the Lighting device 5 also designed without protective conductor, whereby their electrical connection is considerably simplified.
  • the electrical connection elements 16 of the first end cap 12 have a different geometry than the mechanical connecting elements 18 of the second end cap 13, whereby a confusion-proof installation of the lighting device 5 is simplified on the lamp housing 2.
  • a confusion can be excluded in particular if the associated sockets 6, 7 also have corresponding complementary shaped receptacles, namely a first receptacle 19 on the first socket 6 for the electrical connection elements 16 and a second receptacle 20 on the second socket 7 for the mechanical Connecting elements 18.
  • the support body 10 is useful at the same time as a heat sink and is made for this purpose of a suitable metal, preferably light metal or light metal alloy.
  • the support body 10 is a metal extruded profile, which may be produced in particular by extrusion. The profiling of the support body 10 in the cross sections 6a to 6d recognizable.
  • the support body 10 has a channel 21 which extends parallel to the longitudinal direction of the support body 10.
  • the longitudinal direction of the support body 10 is in the cross sections of FIGS. 6a to 6d perpendicular to the plane of the drawing.
  • the channel 21 is used at the longitudinal ends 15, 17 of the lighting device 5 for securing the respective end cap 12, 13.
  • pin-shaped fasteners are used, which penetrate axially into the end 21 in the channel.
  • Such fasteners may be, for example, screws or pins, in particular grooved pins, which are in the respective End cap 12, 13 according to the FIGS.
  • shaped, pin-shaped fastening sections may also be integrally formed on the respective end cap 12, which engage in the channel 21, so that with their help, the respective end cap 12, 13 on the support body 10 can be fixed.
  • the LEDs 9 may preferably be arranged along a rectilinear row 23 on a front side 24 of the board 8. If, as in the embodiment preferred here, only a single such LED row 23 is arranged on the circuit board 8, this is expediently located centrally on the circuit board 8.
  • the support body 10 may have on a side facing away from the board 8 side of a cooling bar 25 which is selectively arranged so that it is in the range of the LED row 23 when the board 8 is attached to the support body 10. In the example, the cooling web 25 is thus arranged centrally on the support body 10.
  • the cooling bar 25 can be formed integrally on the carrier body 10 in a particularly simple manner.
  • the cooling web 25 extends in cross section of the support body 10 substantially transversely or radially to its longitudinal central axis.
  • the aforementioned channel 21 is formed in the cooling web 25.
  • the channel 21 is here also radially open with respect to the longitudinal axis of the lighting device 5, whereby the cooling fin 25 is virtually divided in this area. This measure leads to more surface on the support body 10, which is available for the emission of heat.
  • the cooling bar 25 thus selectively absorb heat there and dissipate, where it arises predominantly on the board 8, namely in the range of the LED row 23.
  • the cooling web 25 separates in the support body 10 also two hollow chambers 26, 27 from each other, whereby the Carrying body 10 has a total of a larger surface area, which allows a radiation of heat.
  • the support body 10 has two retaining webs 28, 29 which extend along opposite longitudinal sides of the holding region 14 parallel to the longitudinal axis of the lighting device 5.
  • FIG. 6d can be attached to these retaining webs 28, 29, the cover 11.
  • the holding webs 28, 29 are expediently integrally formed on the support body 10, which is particularly simple when using an extruded profile for the support body 10 is possible.
  • the respective holding web 28, 29 presses the board 8 in the region of the respective longitudinal side edge 30, 31 against the holding region 14 and thus against the carrier body 10 , As a result, the board 8 is at the same time sufficiently securely fixed to the support body 10.
  • the respective retaining web 28, 29 for attaching and pressing the board 8 on the support body 10 is plastically deformed.
  • the pressing and fixing of the board 8 on the support body 10 can be particularly easily realized over the entire length of the board 8, when the respective holding web 28, 29 extends over the entire axial length of the support body 10 and is also formed over its entire axial length ,
  • the respective holding web 28, 29 has a gripping area 32 and a clip area 33.
  • the gripping region 32 serves for reaching over the printed circuit board 8.
  • the clip region 33 is used for clipping the cover 11, which has a corresponding, complementary clip contour 34 at the edge for this purpose.
  • the deformation of the retaining webs 28, 29 according to FIG. 6c whereby they are plastically deformed, such that they overlap with the respective gripping region 32 the associated longitudinal side edge 30, 31 and press against the holding portion 14.
  • the deformation can be done for example by means of a Rolierhabilits.
  • a prestressing of the printed circuit board 8 takes place in which it is likewise arched in cross section. As a result, a large-area, biased contact between board 8 and holding portion 14 is enforced.
  • the support body 10 extends along a in FIG. 6d indicated by a double arrow circumferential direction 35 over more than 180 °.
  • the support body 10 extends in the circumferential direction 35 about 230 °.
  • This design has the consequence that as much as possible metallic surface is available, which allows a heat radiation to the outside.
  • Particularly useful is an embodiment in which the support body 10 itself directly forms a portion of an outer contour of the lighting device 5.
  • the proportion of the support body 10 at this outer contour is more than 50%.
  • the first version 6 can have two test openings 37, 38, through which test probes can be inserted from the outside into the first socket 12 in order to be able to test the function of the luminaire 2 or of the luminous device 5 even when the luminous device 5 is attached thereto.
  • the first version 6 has a top test function.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

Die vorliegende Erfindung betrifft eine Leuchteinrichtung zur Verwendung in einer Leuchte. Die Erfindung betrifft außerdem eine Leuchte, die mit wenigstens einer derartigen Leuchteinrichtung ausgestattet ist.The present invention relates to a lighting device for use in a luminaire. The invention also relates to a luminaire which is equipped with at least one such luminous device.

Eine Leuchte weist zum Erzeugen von Licht üblicherweise zumindest eine Leuchteinrichtung auf. Die Leuchteinrichtung kann dabei selbst ein lichterzeugendes Mittel sein oder zumindest ein derartiges Leuchtmittel aufweisen. Sofern die Leuchteinrichtung austauschbar an einem Leuchtengehäuse der Leuchte anbringbar ist, kann die Leuchteinrichtung im Folgenden auch als Lampe bezeichnet werden.A luminaire usually has at least one lighting device for generating light. The lighting device may itself be a light-generating means or at least have such a light source. If the lighting device is exchangeably attachable to a lamp housing of the lamp, the lighting device may also be referred to below as a lamp.

Um auch beim Erzeugen von Licht elektrische Energie einzusparen, wird vermehrt versucht, von herkömmlichen Lampen, wie zum Beispiel Glühbirnen und Leuchtstoffröhren, zu energiesparenden Leuchteinrichtungen oder Lampen zu wechseln. Von besonderer Bedeutung sind dabei Leuchteinrichtungen, die als Leuchtmittel LEDs verwenden. LED steht dabei in üblicher Weise für lichtemittierende Diode. LEDs zeichnen sich durch eine extrem hohe Lebensdauer und einen niedrigen Energieverbrauch aus.In order to save electrical energy even when generating light, an increasing attempt is being made to switch from conventional lamps, such as light bulbs and fluorescent tubes, to energy-saving lighting devices or lamps. Of particular importance are lighting devices that use LEDs as light sources. LED stands in the usual way for light-emitting diode. LEDs are characterized by an extremely long life and low energy consumption.

Als Ersatz von Leuchtstoffröhren können stabförmige Leuchteinrichtungen zum Einsatz kommen, die eine geradlinige Platine aufweisen, die eine Vielzahl von LEDs trägt. Die Lebensdauer derartiger elektronischer Leuchtmittel hängt stark von der Wärme ab, der sie ausgesetzt sind. LEDs erzeugen während ihres Betriebs Wärme, die möglichst effizient abgeführt werden muss. Ferner erzeugt auch die zum Betreiben der LEDs erforderliche Leistungselektronik vergleichsweise viel Abwärme, die abgeführt werden muss und die ebenfalls von den LEDs ferngehalten werden muss. Um ausreichend Kühlung zu erzielen, können vergleichsweise große Kühlkörper zum Einsatz kommen, wodurch Leuchteinrichtungen, die mit LEDs ausgestattet sind, vergleichsweise groß bauen. Insbesondere stabförmige Leuchteinrichtungen werden dadurch außerdem schwer, wodurch es nicht ohne Weiteres möglich ist, diese auf herkömmliche Weise mit einem Leuchtengehäuse elektrisch und mechanisch zu verbinden.As a substitute for fluorescent tubes rod-shaped lighting devices can be used, which have a rectilinear board, which carries a plurality of LEDs. The life of such electronic bulbs depends strongly on the heat to which they are exposed. LEDs generate heat during their operation, which must be dissipated as efficiently as possible. Furthermore, the power electronics required to operate the LEDs also generate comparatively much waste heat, which must be dissipated and which also has to be kept away from the LEDs. To achieve sufficient cooling, can be comparatively large heatsinks are used, which light fixtures, which are equipped with LEDs, build comparatively large. In particular, rod-shaped lighting devices are also difficult, which makes it not readily possible to electrically and mechanically connect them in a conventional manner with a lamp housing.

Bekannte stabförmige Leuchteinrichtungen sind in DE 20 2008 007862 U1 , EP 2 613 079 A1 , DE 10 2011 076613 A1 , DE 20 2010 005696 U1 , EP 2 385 292 A1 , US 2011//074264 A1 beschrieben.Known rod-shaped lighting devices are in DE 20 2008 007862 U1 . EP 2 613 079 A1 . DE 10 2011 076613 A1 . DE 20 2010 005696 U1 . EP 2 385 292 A1 . US 2011 // 074264 A1 described.

Werden die Leuchteinrichtungen außerdem bei üblichen Netzspannungen, also bei etwa 230 V AC (Wechselspannung) betrieben, ergibt sich außerdem das Problem, dass zwischen den stromführenden Komponenten der Leuchteinrichtung, die sich auf der Platine befinden, und einer die Platine abdeckenden Abdeckung ein vorbestimmter Mindestabstand vorliegen muss, um eine Funkenentladung im Falle einer Berührung des Gehäuses der Abdeckung durch eine Person zu vermeiden. Somit bauen derartige Leuchteinrichtungen auch aus diesem Grund vergleichsweise groß.If the lighting devices also operate at normal mains voltages, ie at about 230 V AC (AC voltage), there is also the problem that there is a predetermined minimum distance between the current-carrying components of the lighting device, which are located on the board, and a cover covering the board must be in order to prevent a spark discharge in the event of contact of the housing of the cover by a person. Thus, such lighting devices also build comparatively large for this reason.

Die vorliegende Erfindung beschäftigt sich mit dem Problem, für eine Leuchteinrichtung der vorstehend beschriebenen Art bzw. für eine zugehörige Leuchte eine verbesserte Ausführungsform anzugeben, die sich insbesondere durch eine preiswerte Herstellbarkeit auszeichnet. Die Erfindung beschäftigt sich außerdem mit dem Problem, die Leuchteinrichtung möglichst kompakt zu realisieren und vorzugsweise eine vereinfachte Handhabung zu ermöglichen. Die kompakte Bauweise soll sich dabei insbesondere durch einen vergleichsweise kleinen Querschnitt der im Wesentlichen stabförmigen Leuchteinrichtung sowie durch ein reduziertes Gewicht der Leuchteinrichtung zeigen.The present invention is concerned with the problem of providing for a lighting device of the type described above or for an associated light an improved embodiment, which is characterized in particular by an inexpensive manufacturability. The invention also deals with the problem of realizing the lighting device as compact as possible and preferably to facilitate a simplified handling. The compact design is intended to show in particular by a comparatively small cross section of the substantially rod-shaped lighting device and by a reduced weight of the lighting device.

Dieses Problem wird erfindungsgemäß durch den Gegenstand des unabhängigen Anspruchs gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This problem is solved according to the invention by the subject matter of the independent claim. Advantageous embodiments are the subject of the dependent claims.

Die Erfindung beruht auf dem allgemeinen Gedanken, eine stabförmige Leuchteinrichtung mit Hilfe eines geradlinigen und länglichen Tragkörpers und einer geradlinigen und länglichen Abdeckung zu realisieren, die am Tragkörper befestigt ist und dabei eine am Tragkörper angeordnete Platine abdeckt. Ferner umfasst die Leuchteinrichtung zwei Endkappen, nämlich eine erste Endkappe und eine zweite Endkappe, die an die beiden Längsenden der Einheit aus Tragkörper und Abdeckung axial aufgesteckt sind. Die erste Endkappe ist dabei mit elektrischen Verbindungselementen ausgestattet, die mit der Platine elektrisch verbunden sind und mit denen eine elektrische und mechanische Verbindung der Leuchteinrichtung mit einer ersten Fassung, vorzugsweise eines Leuchtengehäuses einer Leuchte, vorgesehen sind. Im Unterschied dazu ist die zweite Endkappe mit mechanischen Verbindungselementen ausgestattet, die mit der Platine nicht elektrisch verbunden sind und nur zum mechanischen Verbinden der Leuchteinrichtung mit einer zweiten Fassung, vorzugsweise des besagten Leuchtengehäuses, vorgesehen sind. Die Leuchteinrichtung besitzt dadurch einen extrem einfachen Aufbau, da die elektrische Kontaktierung mit einer externen elektrischen Energieversorgung nur an einem ihrer Längsenden erfolgt.The invention is based on the general idea to realize a rod-shaped lighting device by means of a rectilinear and elongate support body and a rectilinear and elongated cover which is fixed to the support body and thereby covers a arranged on the support body board. Furthermore, the lighting device comprises two end caps, namely a first end cap and a second end cap, which are axially attached to the two longitudinal ends of the unit of support body and cover. The first end cap is equipped with electrical connection elements which are electrically connected to the circuit board and with which an electrical and mechanical connection of the lighting device with a first socket, preferably a light housing of a lamp, are provided. In contrast, the second end cap is provided with mechanical fasteners which are not electrically connected to the board and are provided only for mechanically connecting the lighting device to a second socket, preferably said lamp housing. The lighting device thereby has an extremely simple structure, since the electrical contact with an external electrical power supply takes place only at one of its longitudinal ends.

Ein "geradliniger Körper" ist in vorliegendem Zusammenhang ein Körper, dessen Längsmittelachse im Raum eine Gerade definiert. Ein "länglicher Körper" ist in vorliegendem Zusammenhang ein Körper, dessen in der Längsrichtung gemessene Länge größer ist als eine quer zur Längsrichtung gemessene Breite und Höhe des Körpers. Insbesondere ist der Körper mindestens doppelt und vorzugsweise mindestens zehnmal länger als breit und hoch.A "rectilinear body" in the present context is a body whose longitudinal central axis defines a straight line in space. An "elongated body" in the present context is a body whose length measured in the longitudinal direction is greater than a width and height of the body measured transversely to the longitudinal direction. In particular, the body is at least twice and preferably at least ten times longer than it is wide and tall.

Vorteilhaft ist eine Ausführungsform, bei welcher der Haltebereich eine Anlagefläche aufweist und bei welcher die Platine entlang ihrer Rückseite flächig an der Anlagefläche anliegt. Hierdurch wird eine großflächige Kontaktierung zwischen Platine und Tragkörper erreicht, die eine rasche und effiziente Wärmeabfuhr von der Platine in den Tragkörper ermöglicht.An embodiment in which the holding region has a contact surface and in which the printed circuit board rests flat against the contact surface along its rear side is advantageous. As a result, a large-area contact between Board and support body achieved, which allows a rapid and efficient heat dissipation from the board into the support body.

Ferner kann gemäß einer anderen vorteilhaften Ausführungsform vorgesehen sein, dass die Anlagefläche im quer zur Längsrichtung des Tragkörpers gemessenen Querschnitt zur Platine hin konvex gekrümmt ist. Außerdem ist in diesem Fall die Platine bevorzugt gegen den Haltebereich bzw. an die Anlagefläche vorgespannt bzw. angedrückt, wodurch eine großflächige Kontaktierung unterstützt ist. Die Vorspannung reduziert Restspalte und verbessert dadurch die Wärmeübertragung. Besonders zweckmäßig ist die gewölbte Anlagefläche in Verbindung mit einer randseitigen Fixierung der Platine am Haltebereich. Beispielsweise kann entlang von Längsseitenrändern der Platine jeweils ein Haltesteg vorgesehen sein, mit dessen Hilfe die Platine gegen die Anlagefläche angedrückt ist. Hierbei kann die Platine elastisch komplementär zur Anlagefläche gebogen werden, wodurch es zur vorgespannten, flächigen Kontaktierung entlang der gewölbten Anlagefläche kommt. Die Wölbung der Anlagefläche eliminiert dabei Formtoleranzen, die bei ebener Ausgestaltung eine intensive flächige Kontaktierung behindern könnten.Furthermore, according to another advantageous embodiment, it can be provided that the contact surface is convexly curved in the cross section measured transversely to the longitudinal direction of the support body. In addition, in this case, the board is preferably biased or pressed against the holding area or to the contact surface, whereby a large-area contact is supported. The bias reduces residual gaps and thereby improves heat transfer. Particularly useful is the curved contact surface in conjunction with a marginal fixation of the board on the holding area. For example, a holding web can be provided along longitudinal side edges of the board, with the aid of which the board is pressed against the contact surface. In this case, the board can be bent elastically complementary to the contact surface, whereby it comes to the prestressed, areal contacting along the curved contact surface. The curvature of the contact surface eliminates form tolerances that could hinder an intensive planar contact with a flat design.

Entsprechend einer vorteilhaften Ausführungsform kann die Leuchteinrichtung als ELV-Leuchteinrichtung oder als SELV-Leuchteinrichtung ausgestaltet sein. ELV steht dabei für Extra Low Voltage und ist auf Spannungen von 50 V AC (Wechselspannung) und 120 V DC (Gleichspannung) begrenzt. Derartige Kleinspannungen sind für erwachsene Personen auch bei Dauerberührung weitgehend ungefährlich. SELV steht dabei für Safety Extra Low Voltage und beschreibt einen Spannungsbereich bis maximal 24 V AC und 60 V DC. Derartige Kleinstspannungen sind auch für Kinder und Tiere bei Dauerberührung ungefährlich.According to an advantageous embodiment, the lighting device may be configured as ELV lighting device or as SELV lighting device. ELV stands for Extra Low Voltage and is limited to voltages of 50 V AC (AC voltage) and 120 V DC (DC voltage). Such extra-low voltages are largely harmless for adult persons, even on permanent contact. SELV stands for Safety Extra Low Voltage and describes a voltage range up to a maximum of 24 V AC and 60 V DC. Such minimal voltages are safe for children and animals on permanent contact.

Die Ausgestaltung der Leuchteinrichtung als Elektronikbauteil mit ELV und vorzugsweise mit SELV ermöglicht eine drastische Reduzierung der Baugröße. Einerseits lässt sich die Wärmeentwicklung durch die begrenzte Spannung reduzieren. Andererseits nimmt der einzuhaltende Abstand zwischen Platine und Abdeckung bei begrenzter Spannung stark ab. Insbesondere bei einer Ausgestaltung der Leuchteinrichtung als SELV-Bauteil kann der Abstand zwischen Platine und Abdeckung so stark reduziert werden, dass für die Leuchteinrichtung insgesamt ein relativ kleiner Querschnitt realisierbar ist. In der Folge lässt sich die Leuchteinrichtung signifikant kompakter realisieren. Gleichzeitig kann dadurch auch der Tragkörper entsprechend kleiner dimensioniert werden, wodurch insgesamt relativ viel Gewicht eingespart werden kann. Reduziertes Gewicht vereinfacht die Ausgestaltung der erforderlichen Fassungen sowie der erforderlichen Verbindungselemente, wodurch auch diese Komponenten einfacher und somit preiswerter realisierbar sind.The design of the lighting device as an electronic component with ELV and preferably with SELV allows a drastic reduction in size. On the one hand, the heat development can be reduced by the limited voltage. On the other hand, the distance to be maintained between the board and the cover greatly decreases with limited voltage. In particular, in one embodiment of the lighting device as a SELV component, the distance between the board and cover can be so greatly reduced that for the lighting device a total of a relatively small cross-section can be realized. As a result, the lighting device can be realized significantly more compact. At the same time, this also allows the support body to be dimensioned correspondingly smaller, whereby a relatively large amount of weight can be saved overall. Reduced weight simplifies the design of the required sockets and the required connecting elements, whereby these components are simpler and thus less expensive to implement.

Bei einer anderen vorteilhaften Ausführungsform kann die Leuchteinrichtung auch ohne Schutzleiter, also ohne Erdung bzw. ohne Massung ausgestaltet sein. Dies ist vor allem dann möglich, wenn die Leuchte als SELV-Bauteil konzipiert ist und nicht für einen Einsatz in einem Feuchtraum vorgesehen ist. Durch Verzicht auf eine Erdung, lässt sich die Elektrifizierung der Leuchteinrichtung weiter vereinfachen, wodurch auch die Herstellung der Leuchteinrichtung sowie einer zugehörigen Leuchte preiswerter wird.In another advantageous embodiment, the lighting device can also be configured without protective conductor, that is without grounding or without grounding. This is especially possible if the luminaire is designed as a SELV component and is not intended for use in a damp room. By eliminating a ground, the electrification of the lighting device can be further simplified, whereby the production of the lighting device and an associated light is cheaper.

Bei einer anderen Ausführungsform können die Verbindungselemente der beiden Endkappen geometrisch unterschiedlich sein. Auf diese Weise lässt sich eine verwechslungssichere Montage in den zugehörigen Fassungen vereinfachen. Hierdurch reduziert sich insbesondere der Montageaufwand, was bei einer Erstmontage der Leuchteinrichtung ebenso von Vorteil ist wie bei einem Austausch der Leuchteinrichtung.In another embodiment, the connecting elements of the two end caps may be geometrically different. In this way, a confusion-proof installation in the associated versions can be simplified. This reduces in particular the assembly effort, which is also advantageous in an initial installation of the lighting device as in an exchange of the lighting device.

Der Tragkörper ist vorzugsweise ein Metallkörper, wodurch er zusätzlich zu seiner Tragfunktion als Kühlkörper wirkt, um an der Platine erzeugte Wärme aufnehmen und abführen zu können. Vorzugsweise handelt es sich beim Tragkörper um ein metallisches Strangprofil, das besonders einfach als effizienter Kühlkörper konfiguriert werden kann. Das Strangprofil kann grundsätzlich ein Extrusionsprofil, vorzugsweise jedoch ein Strangpressprofil sein. Verwendet werden bevorzugt Leichtmetalle bzw. Leichtmetalllegierungen, wie zum Beispiel Aluminium bzw. Aluminiumlegierungen. Durch eine besonders effiziente Wärmeabfuhr kann einerseits die Leistungsfähigkeit hinsichtlich der Lichterzeugung der Leuchteinrichtung gesteigert werden, während gleichzeitig die Abmessungen reduziert werden können, da mit Hilfe des als Kühlkörper wirkenden Tragkörpers die anfallende Wärme effizient abgeführt werden kann.The support body is preferably a metal body, whereby it acts in addition to its support function as a heat sink to absorb and dissipate heat generated on the board can. Preferably, the support body is a metallic extruded profile, which can be particularly easily configured as an efficient heat sink. The extruded profile can basically be an extrusion profile, but preferably an extruded profile. Light metals or light metal alloys, such as, for example, aluminum or aluminum alloys, are preferably used. By a particularly efficient heat dissipation on the one hand, the performance in terms of light generation of the lighting device can be increased, while the dimensions can be reduced because with the help of acting as a heat sink supporting body, the heat generated can be dissipated efficiently.

Bei einer anderen erfindungsgemäß Ausführungsform kann der Tragkörper einen sich
parallel zur Längsrichtung des Tragkörpers erstreckenden Kanal aufweisen, in den stirnseitig je ein Befestigungselement zum Befestigen der jeweiligen Endkappe am Tragkörper axial eingreift. Der Tragkörper dient auf diese Weise neben dem Festlegen bzw. Tragen der Platine, außerdem zum Befestigen der Endkappen. Hierzu wird der am Tragkörper vorzugsweise integral ausgeformte Kanal mit dem jeweiligen Befestigungselement zusammen. Das jeweilige Befestigungselement kann dabei grundsätzlich integral an der jeweiligen Endkappe ausgeformt sein. Ebenso kann ein separates Befestigungselement zur Anwendung kommen. Bevorzugt handelt es sich dabei um ein stiftförmiges Befestigungselement, beispielsweise in Form einer Schraube oder eines Kerbstifts.In another embodiment of the invention, the support body is a
parallel to the longitudinal direction of the support body extending channel, engages in the front side per a fastener for securing the respective end cap on the support body axially. The support body serves in this way in addition to the setting or carrying the board, also for securing the end caps. For this purpose, the channel, which is preferably integrally formed on the support body, is combined with the respective fastening element. The respective fastening element can in principle be integrally formed on the respective end cap. Likewise, a separate fastener can be used. This is preferably a pin-shaped fastening element, for example in the form of a screw or a notched pin.

Der Kanal ist radial offen.The channel is open radially.

Hierdurch vereinfacht sich insbesondere die Herstellung des Tragkörpers als Strangprofil. Des Weiteren wird durch den radial offenen Kanal mehr Oberfläche zur Wärmeabstrahlung geschaffen, was die Effizienz des Tragkörpers als Kühlkörper verbessert.This simplifies in particular the production of the support body as an extruded profile. Furthermore, the radially open channel provides more surface area created for heat radiation, which improves the efficiency of the support body as a heat sink.

Bei einer erfindungsgemäß Ausführungsform sind die LEDs zweckmäßig
an einer Vorderseite der Platine entlang einer geradlinigen Reihe angeordnet sein, die vorzugsweise bezüglich einer Querrichtung der Platine mittig angeordnet ist. Bei mittiger Anordnung ist dementsprechend nur eine einzige LED-Reihe an der Platine angeordnet. Hierdurch baut die Platine in ihrer Querrichtung vergleichsweise klein, wodurch auch letztlich die stabförmige Leuchteinrichtung einen kleinen Querschnitt und somit eine kompakte Bauform besitzt. Grundsätzlich denkbar ist jedoch auch eine Platine, bei der zwei oder mehr derartige geradlinige LED-Reihen nebeneinander angeordnet sind, die parallel zur Längsrichtung der Platine verlaufen.In an embodiment according to the invention, the LEDs are expedient
be arranged on a front side of the board along a rectilinear row, which is preferably arranged centrally with respect to a transverse direction of the board. With a central arrangement, accordingly, only a single row of LEDs is arranged on the circuit board. As a result, the board builds comparatively small in its transverse direction, whereby ultimately the rod-shaped lighting device has a small cross section and thus a compact design. In principle, however, also conceivable is a circuit board in which two or more such linear LED rows are arranged side by side, which run parallel to the longitudinal direction of the board.

Bevorzugt ist jedoch eine Ausführungsform, bei der nur eine einzige LED-Reihe vorgesehen ist, die sich parallel zur Längsrichtung der Platine erstreckt und dabei bezüglich der Platine mittig angeordnet ist. Der Tragkörper kann gemäß einer besonders vorteilhaften Ausführungsform an einer von der Platine abgewandten Seite des Haltebereichs im Bereich der LED-Reihe, also vorzugsweise mittig, einen Kühlsteg aufweisen, der am Tragkörper integral ausgeformt ist und bezüglich der Platine quer und von der Platine weggerichtet absteht. Der als Kühlkörper funktionierende Tragkörper kann mit Hilfe eines derartigen Kühlstegs gerade im Bereich der LED-Reihe besonders viel Wärme aufnehmen und abführen. Somit wird gerade derjenige Bereich der Platine besonders intensiv gekühlt, in dem während des Betriebs der Leuchteinrichtung die meiste Wärme anfällt.However, an embodiment is preferred in which only a single row of LEDs is provided, which extends parallel to the longitudinal direction of the board and is arranged centrally with respect to the board. According to a particularly advantageous embodiment, the support body can have a cooling web in the region of the LED row, ie preferably in the center, a cooling web which is integrally formed on the support body and protrudes transversely with respect to the printed circuit board and away from the printed circuit board. The functioning as a heat sink support body can absorb and dissipate very much heat with the help of such a cooling bar, especially in the field of LED row. Thus, just that portion of the board is particularly intensively cooled, in which the most heat is generated during operation of the lighting device.

Gemäß einer vorteilhaften Weiterbildung kann dieser Kühlsteg den zuvor genannten Kanal ausformen, wodurch in diesem Bereich des Tragprofils eine vergleichsweise hohe Funktionsdichte erzielt wird, was letztlich eine kompakte Bauweise und preiswerte Herstellung unterstützt.According to an advantageous development of this cooling bar can form the aforementioned channel, whereby in this area of the support profile a comparatively high functional density is achieved, which ultimately supports a compact design and inexpensive production.

Gemäß einer anderen vorteilhaften Weiterbildung kann der Kühlsteg im Tragkörper zwei Hohlkammern voneinander trennen. Bei nur einem Kühlsteg kann der Tragkörper dadurch ein Zwei-Kammer-Hohlprofil bilden, das eine vergleichsweise große Oberfläche zur Wärmeabstrahlung besitzt. Gleichzeitig wird eine hohe Querstabilität und Steifigkeit für den Tragkörper realisiert.According to another advantageous development, the cooling web in the support body can separate two hollow chambers from each other. With only one cooling bar, the supporting body can thereby form a two-chamber hollow profile, which has a comparatively large surface area for heat radiation. At the same time a high transverse stability and rigidity for the support body is realized.

Bei einer anderen Ausführungsform kann der Tragkörper entlang von sich gegenüberliegenden Längsseiten des Haltebereichs je einen Haltesteg aufweisen, an denen die Abdeckung befestigt ist. Somit erfolgt die Befestigung der Abdeckung unmittelbar angrenzend an den Haltebereich und somit proximal zur Platine, wodurch die Leuchteinrichtung sehr kompakt baut.In another embodiment, the support body along each of opposite longitudinal sides of the holding portion each have a holding web to which the cover is attached. Thus, the attachment of the cover is immediately adjacent to the holding area and thus proximal to the board, whereby the lighting device is very compact.

Besonders zweckmäßig kann vorgesehen sein, den jeweiligen Haltesteg am Tragkörper integral auszuformen. Insbesondere lassen sich die beiden Haltestege bei der Herstellung des Tragkörpers als Strangprofil ausformen.It may be particularly expedient to form the respective holding web integrally on the support body. In particular, the two holding webs can be formed in the production of the support body as extruded profile.

Bei einer anderen Ausführungsform kann der Tragkörper wieder solche Haltestege aufweisen, wobei der jeweilige Haltesteg in diesem Fall einen Längsseitenrand der Platine übergreifen und so die Platine am Tragkörper befestigen und daran anpressen kann. Grundsätzlich können zum Befestigen der Abdeckung und zum Befestigen der Platine separate Haltestege am Tragkörper vorgesehen sein. Bevorzugt ist jedoch eine Ausführungsform, bei der dieselben Haltestege einerseits zum Anbringen der Abdeckung dienen und andererseits zum Fixieren der Platine dienen. Hierdurch erhält der jeweilige Haltesteg eine Doppelfunktion, da er einerseits zum Befestigen der Abdeckung dient und andererseits zum Befestigen der Platine verwendet wird. Insbesondere kann auf separate Befestigungselemente zum Festlegen der Platine am Tragkörper verzichtet werden.In another embodiment, the support body may again have such retaining webs, wherein the respective retaining web in this case overlap a longitudinal side edge of the board and so attach the board to the support body and can press it. Basically, separate holding webs may be provided on the support body for attaching the cover and for securing the board. However, an embodiment in which the same holding webs on the one hand serve to attach the cover and on the other hand serve to fix the circuit board is preferred. As a result, the respective retaining web receives a double function, since it serves on the one hand for fastening the cover and on the other hand for securing the Board is used. In particular, can be dispensed with separate fasteners for fixing the board on the support body.

Gemäß einer bevorzugten Weiterbildung kann der jeweilige Haltesteg zum Befestigen und Anpressen der Platine am Tragkörper plastisch umgeformt sein. Das bedeutet, dass zum Festlegen der im Haltebereich angeordneten Platine die Haltestege so umgeformt werden, dass sie anschließend je einen Längsseitenrand der Platine übergreifen und dadurch die Platine gegen den Tragkörper anpressen und daran fixieren. Es hat sich gezeigt, dass eine derartige Befestigung besonders effizient ist, um die Wärmeübertragung zwischen Platine und Tragkörper zu verbessern. Insbesondere kann sich dabei der jeweilige Haltesteg im Wesentlichen über die gesamte Länge der Platine unterbrechungsfrei erstrecken, so dass die Platine entlang ihrer gesamten Länge an beiden Längsseitenrändern gegen den Tragkörper niedergedrückt wird und daran vorgespannt anliegt. Hierdurch lässt sich eine besonders intensive Wärmeübertragung zwischen Platine und Tragkörper realisieren. Es hat sich ferner gezeigt, dass bei einer derartigen Befestigung der Platine am Tragkörper sogar auf zusätzliche Wärmeleitmittel verzichtet werden kann, die bei konventioneller Bauweise zwischen der Platine und dem Tragkörper angeordnet werden können, um die Wärmeleitung zu verbessern.According to a preferred embodiment, the respective retaining web for securing and pressing the board on the support body may be plastically deformed. This means that for fixing the arranged in the holding area board, the holding webs are reshaped so that they then overlap each one longitudinal side edge of the board and thereby press the board against the support body and fix it. It has been found that such a fastening is particularly efficient in order to improve the heat transfer between the board and the supporting body. In particular, the respective retaining web can extend substantially uninterrupted over the entire length of the board, so that the board is pressed along its entire length at both longitudinal side edges against the supporting body and bears biased against it. This makes it possible to realize a particularly intense heat transfer between the board and the support body. It has also been shown that with such a mounting of the board on the support body can even be dispensed with additional heat conduction, which can be arranged in a conventional construction between the board and the support body to improve the heat conduction.

Gemäß einer anderen vorteilhaften Ausführungsform kann der jeweilige Haltesteg einen Greifbereich zum Übergreifen der Platine und einen Clipbereich zum Einclipsen der Abdeckung aufweisen. Auf diese Weise lässt sich die Abdeckung nach dem Befestigen der Platine besonders einfach an den Haltestegen anbringen. Insbesondere ist hierbei eine werkzeuglose Befestigung möglich.According to another advantageous embodiment, the respective holding web may have a gripping area for reaching over the board and a clip area for clipping the cover. In this way, the cover after attaching the board is particularly easy to attach to the retaining webs. In particular, this tool-free attachment is possible.

Bei einer anderen vorteilhaften Ausführungsform kann sich der Tragkörper entlang eines Umfangs der Leuchteinrichtung über mehr als 180° erstrecken. Hierdurch nimmt der Tragkörper, der bevorzugt als Kühlkörper dient, einen vergleichsweise großen Anteil des Querschnitts der Leuchteinrichtung ein, nämlich wenigstens 50 %. Hierdurch kann eine besonders effiziente Kühlwirkung realisiert werden.In another advantageous embodiment, the support body may extend over a circumference of the lighting device over more than 180 °. hereby takes the support body, which preferably serves as a heat sink, a relatively large proportion of the cross section of the lighting device, namely at least 50%. As a result, a particularly efficient cooling effect can be realized.

Gemäß einer anderen vorteilhaften Ausführungsform kann der Tragkörper unmittelbar einen Teil, vorzugsweise einen wesentlichen Anteil, der Außenkontur der Leuchteinrichtung bilden. Ein wesentlicher Anteil ist im vorliegenden Zusammenhang ein Anteil von wenigstens 50 %. Wichtig ist bei dieser Ausführungsform, dass der Tragkörper unmittelbar einen Teil der Außenkontur der Leuchteinrichtung bildet, wodurch der bevorzugt als Kühlkörper dienende Tragkörper die aufgenommene Wärme unmittelbar in eine Umgebung der Leuchteinrichtung abstrahlen kann. Insbesondere besitzt die Leuchteinrichtung kein weiteres Gehäuse, das den Tragkörper von außen umschließt.According to another advantageous embodiment of the support body can directly form a part, preferably a substantial proportion, the outer contour of the lighting device. A substantial proportion in the present context is a share of at least 50%. It is important in this embodiment that the support body directly forms part of the outer contour of the lighting device, whereby the preferably serving as a heat sink supporting body can radiate the heat absorbed directly into an environment of the lighting device. In particular, the lighting device has no further housing, which encloses the support body from the outside.

Eine erfindungsgemäße Leuchte ist mit wenigstens einer Leuchteinrichtung der vorstehend beschriebenen Art ausgestattet. Ferner umfasst eine derartige Leuchte ein Leuchtengehäuse, das für die jeweilige Leuchteinrichtung die zugehörige erste Fassung und die zugehörige zweite Auffassung aufweist. Erfindungsgemäß wird die jeweilige Leuchteinrichtung dabei über die erste Fassung elektrisch und mechanisch mit dem Leuchtengehäuse verbunden, während sie über die zweite Fassung nur mechanisch mit dem Leuchtengehäuse verbunden ist. Die elektrische Verbindung der Leuchteinrichtung mit dem Leuchtengehäuse meint dabei eine elektrische Kontaktierung der Leuchteinrichtung mit einer Leistungselektronik zum Betreiben der Leuchteinrichtung, die im Leuchtengehäuse angeordnet ist.A lamp according to the invention is equipped with at least one lighting device of the type described above. Furthermore, such a luminaire comprises a luminaire housing which has the associated first version and the associated second view for the respective luminous device. According to the invention, the respective lighting device is thereby electrically and mechanically connected to the lamp housing via the first socket, while it is only mechanically connected to the lamp housing via the second socket. The electrical connection of the lighting device to the lamp housing means an electrical contact of the lighting device with power electronics for operating the lighting device, which is arranged in the lamp housing.

Entsprechend einer vorteilhaften Weiterbildung können die Fassungen Aufnahmen für die Verbindungselemente der Endkappen aufweisen, die geometrisch verschieden sind. Auf diese Weise ist eine verwechslungssichere Montage der Leuchteinrichtung gewährleistet.According to an advantageous development, the sockets can have receptacles for the connecting elements of the end caps, which are geometrically are different. In this way, a confusion-proof installation of the lighting device is ensured.

Zweckmäßig können die Fassungen so konzipiert sein, dass die Leuchteinrichtung bezüglich ihrer Längsmittelachse radial am Leuchtengehäuse angesetzt werden muss, um die Verbindungselemente der Endkappen radial in die Aufnahmen der Fassungen einzuführen. Anschließend wird die Leuchteinrichtung um ihre Längsmittelachse um etwa 90° gedreht. Dabei rotieren die Aufnahmen innerhalb der Fassungen und können bei Erreichen der endgültigen Montagestellung in dieser verrasten.Suitably, the sockets can be designed so that the lighting device with respect to its longitudinal central axis must be applied radially to the lamp housing to introduce the connecting elements of the end caps radially into the receptacles of the versions. Subsequently, the lighting device is rotated about its longitudinal central axis by about 90 °. The recordings rotate within the sockets and can lock into place when the final assembly position is reached.

Die Fassungen können gemäß einer vorteilhaften Ausführungsform so konzipiert sein, dass sie einen sogenannten "Toptest" ermöglichen. Zumindest die erste Fassung kann für einen derartigen Toptest ausgestaltet sein. Beim Toptest können Messelektroden eines Messgeräts durch eine Gehäusefassung hindurch mit den elektrischen Kontakten der Fassung elektrisch kontaktiert werden, um die Leuchte bzw. die in die Fassungen eingesetzte Leuchteinrichtung zu prüfen.The sockets can be designed according to an advantageous embodiment so that they allow a so-called "top test". At least the first version can be designed for such a top test. In the top test, measuring electrodes of a measuring device can be electrically contacted through a housing recess with the electrical contacts of the socket in order to test the lamp or the lighting device inserted in the sockets.

Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus den Zeichnungen und aus der zugehörigen Figurenbeschreibung anhand der Zeichnungen.Other important features and advantages of the invention will become apparent from the dependent claims, from the drawings and from the associated figure description with reference to the drawings.

Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the present invention.

Bevorzugte Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden in der nachfolgenden Beschreibung näher erläutert, wobei sich gleiche Bezugszeichen auf gleiche oder ähnliche oder funktional gleiche Komponenten beziehen.Preferred embodiments of the invention are illustrated in the drawings and are explained in more detail in the following description, wherein the same reference numerals refer to the same or similar or functionally identical components.

Es zeigen, jeweils schematisch,

Fig. 1
eine stark vereinfachte Seitenansicht im Längsschnitt einer Leuchte mit einer Leuchteinrichtung,
Fig. 2
eine isometrische Ansicht der Leuchteinrichtung im Bereich eines ersten Längsendes,
Fig. 3
eine isometrische Ansicht der Leuchteinrichtung im Bereich eines zweiten Längsendes,
Fig. 4
eine isometrische Ansicht der Leuchteinrichtung im Bereich des ersten Längsendes mit zugehöriger erster Fassung,
Fig. 5
eine isometrische Ansicht des zweiten Längsendes der Leuchteinrichtung mit zugehöriger zweiter Fassung,
Fig. 6
mehrere Querschnitte eines Tragkörpers der Leuchteinrichtung in einem Ausgangszustand (a), bei daran angeordneter Platine (b), bei daran fixierter Platine (c) und bei daran angebrachter Abdeckung (d).
Show, in each case schematically,
Fig. 1
a greatly simplified side view in longitudinal section of a lamp with a lighting device,
Fig. 2
an isometric view of the lighting device in the region of a first longitudinal end,
Fig. 3
an isometric view of the lighting device in the region of a second longitudinal end,
Fig. 4
an isometric view of the lighting device in the region of the first longitudinal end with associated first version,
Fig. 5
an isometric view of the second longitudinal end of the lighting device with associated second version,
Fig. 6
a plurality of cross-sections of a supporting body of the lighting device in an initial state (a), arranged thereon board (b), at fixed thereto board (c) and attached thereto cover (d).

Entsprechend Figur 1 umfasst eine Leuchte 1 ein Leuchtengehäuse 2, an dem über entsprechende Halterungen, nämlich eine erste Halterung 3 und eine zweite Halterung 4 eine Leuchteinrichtung 5 angebracht werden kann, die auch als Lampe 5 bezeichnet werden kann. Die Leuchteinrichtung 5 besitzt gemäß den Fig. 6a bis 6d vorzugsweise einen runden und im Wesentlichen kreisförmigen Querschnitt. Zur mechanischen und elektrischen Verbindung der Leuchteinrichtung 5 mit dem Gehäuse 2 sind die Halterungen 3, 4 mit entsprechenden Fassungen ausgestattet, nämlich mit einer ersten Fassung 6 in der ersten Halterung 3 und einer zweiten Fassung 7 in der zweiten Halterung 4. Im Leuchtengehäuse 2 kann eine hier nicht gezeigte Leistungselektronik zum Betreiben der Leuchteinrichtung 5 untergebracht sein. Das Leuchtengehäuse 2 dient beispielsweise für eine Deckenmontage der Leuchte 1. Im Beispiel ist die Leuchte 1 so konfiguriert, dass nur eine einzige Leuchteinrichtung 5 daran angebracht werden kann. Es ist klar, dass bei einer anderen Ausführungsform auch die Leuchte 1 bzw. deren Leuchtengehäuse 2 so konfiguriert sein kann, dass daran auch zwei oder mehr derartige Leuchteinrichtungen 5 angebracht werden können.Corresponding FIG. 1 comprises a lamp 1, a lamp housing 2 to which appropriate holders, namely a first holder 3 and a second holder 4, a lighting device 5 can be attached, which can also be referred to as a lamp 5. The lighting device 5 has according to the Fig. 6a to 6d preferably a round and substantially circular cross-section. For mechanical and electrical connection of the lighting device 5 to the housing 2, the brackets 3, 4 are provided with corresponding versions, namely with a first version 6 in the first holder 3 and a second version 7 in the second holder 4. In the lamp housing 2, a not shown here power electronics for operating the lighting device 5 may be housed. The luminaire housing 2 is used, for example, for a ceiling mounting of the lamp 1. In the example, the lamp 1 is configured so that only a single lighting device 5 can be attached thereto. It is clear that in another embodiment, the lamp 1 or its luminaire housing 2 may be configured so that it also two or more such lighting devices 5 can be attached.

Entsprechend den Figuren 1 bis 5 umfasst die jeweilige, stabförmige und geradlinige sowie längliche Leuchteinrichtung 5 eine in den Figuren 2 bis 5 erkennbare geradlinige Platine 8, die mehrere lichtemittierende Dioden, also LEDs 9 trägt. Der Begriff "LED" umfasst im vorliegenden Zusammenhang auch "OLEDs", wobei "OLED" für organische LED steht. Ferner umfasst die Leuchteinrichtung 5 einen geradlinigen und länglichen Tragkörper 10, eine in den Figuren 1 bis 3 erkennbare, geradlinige und längliche Abdeckung 11, zwei Endkappen, nämlich eine erste Endkappe 12 und eine zweite Endkappe 13.According to the FIGS. 1 to 5 includes the respective, rod-shaped and rectilinear and elongated lighting device 5 in the FIGS. 2 to 5 recognizable rectilinear board 8, which carries a plurality of light-emitting diodes, ie LEDs 9. The term "LED" in the present context also includes "OLEDs", where "OLED" stands for organic LED. Furthermore, the lighting device 5 comprises a rectilinear and elongate support body 10, one in the FIGS. 1 to 3 recognizable, straight and elongate cover 11, two end caps, namely a first end cap 12 and a second end cap 13th

Der Tragkörper 10 besitzt gemäß den Figuren 6a bis 6d einen Haltebereich 14 für die Anordnung der Platine 8. Die Abdeckung 11 ist gemäß Figur 6d am Tragkörper 10 befestigt. Gemäß den Figuren 1 bis 5 ist die erste Endkappe 12 an einem ersten Längsende 15 der Leuchteinrichtung 5 axial, also koaxial zu einer Längsmittelachse der Leuchteinrichtung 5 auf den Tragkörper 10 und auf die Abdeckung 11 aufgesteckt. Gemäß den Figuren 2 und 4 weist die erste Endkappe 12 zwei, vorzugsweise genau zwei, elektrische Verbindungselemente 16 auf, die mit der Platine 8 elektrisch verbunden sind. Diese elektrischen Verbindungsmittel 16 stehen dabei nach außen, also vom Tragkörper 10 und von der Abdeckung 11 abgewandt axial von der ersten Endkappe 12 ab und sind zum elektrischen und mechanischen Verbinden der Leuchteinrichtung 5 mit der ersten Fassung 6 ausgestaltet. Diese erste Fassung 6 ist im montierten Zustand der Leuchte 1 in üblicher Weise an eine elektrische Energieversorgung angeschlossen, z.B. an ein Stromnetz.The support body 10 has according to the FIGS. 6a to 6d a holding portion 14 for the arrangement of the board 8. The cover 11 is according to FIG. 6d attached to the support body 10. According to the FIGS. 1 to 5 is the first end cap 12 at a first longitudinal end 15 of the lighting device 5 axially, so attached coaxially to a longitudinal central axis of the lighting device 5 on the support body 10 and on the cover 11. According to the Figures 2 and 4 the first end cap 12 has two, preferably exactly two, electrical connection elements 16, which with the board 8 are electrically connected. These electrical connection means 16 are facing outward, ie away from the support body 10 and facing away from the cover 11 axially from the first end cap 12 and are designed for electrical and mechanical connection of the lighting device 5 with the first version 6. This first version 6 is connected in the assembled state of the lamp 1 in a conventional manner to an electrical power supply, for example to a power grid.

Gemäß den Figuren 1, 3 und 5 ist die zweite Endkappe 13 an einem zweiten Längsende 17 der Leuchteinrichtung 5 axial auf den Tragkörper 10 und die Abdeckung 11 aufgesteckt. Die zweite Endkappe 13 weist gemäß Figur 3 zwei, vorzugsweise nur zwei, mechanische Verbindungselemente 18 auf, die axial von der zweiten Endkappe 13 nach außen abstehen. Die mechanischen Verbindungselemente 18 dienen zum mechanischen Verbinden der Leuchteinrichtung 5 mit der zweiten Fassung 7, die der ersten Fassung 6 axial gegenüberliegend angeordnet ist.According to the FIGS. 1, 3 and 5 the second end cap 13 is axially attached to the support body 10 and the cover 11 at a second longitudinal end 17 of the lighting device 5. The second end cap 13 has according to FIG. 3 two, preferably only two, mechanical connecting elements 18 which protrude axially from the second end cap 13 to the outside. The mechanical connecting elements 18 serve for mechanically connecting the lighting device 5 to the second socket 7, which is arranged axially opposite the first socket 6.

Da die zweite Endkappe 13 somit keine elektrischen Verbindungselemente aufweist, erfolgt die elektrische Energieversorgung der hier vorgestellten Leuchteinrichtung 5 ausschließlich über die elektrischen Verbindungselemente 16 der ersten Endkappe 12.Since the second end cap 13 thus has no electrical connection elements, the electrical power supply of the lighting device 5 presented here takes place exclusively via the electrical connection elements 16 of the first end cap 12.

Die hier vorgestellte Leuchteinrichtung 5 kann grundsätzlich für übliche Netzspannungen, also bis 230 V AC ausgelegt sein. Bevorzugt ist die Leuchteinrichtung 5 jedoch als ELV-Einrichtung ausgelegt, die mit maximal 50 V AC oder maximal 120 V DC betrieben wird. Von besonderem Interesse ist jedoch eine Auslegung der Leuchteinrichtung 5 als SELV-Einrichtung, die maximal bei 24 V AC oder 60 V DC betrieben wird. Bei der hier vorgestellten Ausführungsform ist die Leuchteinrichtung 5 außerdem ohne Schutzleiter ausgestaltet, wodurch ihr elektrischer Anschluss erheblich vereinfacht ist.The lighting device 5 presented here can in principle be designed for normal mains voltages, ie up to 230 V AC. Preferably, however, the lighting device 5 is designed as an ELV device which is operated with a maximum of 50 V AC or a maximum of 120 V DC. Of particular interest, however, is a design of the lighting device 5 as a SELV device, which is operated at a maximum of 24 V AC or 60 V DC. In the embodiment presented here is the Lighting device 5 also designed without protective conductor, whereby their electrical connection is considerably simplified.

Wie sich durch Vergleichen der Figuren 2 und 3 ergibt, besitzen die elektrischen Verbindungselemente 16 der ersten Endkappe 12 eine andere Geometrie als die mechanischen Verbindungselemente 18 der zweiten Endkappe 13, wodurch eine verwechslungssichere Montage der Leuchteinrichtung 5 am Leuchtengehäuse 2 vereinfacht wird. Eine Verwechslung kann insbesondere dann ausgeschlossen werden, wenn die zugehörigen Fassungen 6, 7 außerdem entsprechende komplementär geformte Aufnahmen aufweisen, nämlich eine erste Aufnahme 19 an der ersten Fassung 6 für die elektrischen Verbindungselemente 16 sowie eine zweite Aufnahme 20 an der zweiten Fassung 7 für die mechanischen Verbindungselemente 18.How to compare by comparing FIGS. 2 and 3 results, the electrical connection elements 16 of the first end cap 12 have a different geometry than the mechanical connecting elements 18 of the second end cap 13, whereby a confusion-proof installation of the lighting device 5 is simplified on the lamp housing 2. A confusion can be excluded in particular if the associated sockets 6, 7 also have corresponding complementary shaped receptacles, namely a first receptacle 19 on the first socket 6 for the electrical connection elements 16 and a second receptacle 20 on the second socket 7 for the mechanical Connecting elements 18.

Der Tragkörper 10 dient zweckmäßig gleichzeitig als Kühlkörper und ist zu diesem Zweck aus einem geeigneten Metall, vorzugsweise Leichtmetall bzw. Leichtmetalllegierung hergestellt. Insbesondere handelt es sich beim Tragkörper 10 um ein metallisches Strangprofil, das insbesondere durch Strangpressen hergestellt sein kann. Die Profilierung des Tragkörpers 10 in den Querschnitten 6a bis 6d erkennbar.The support body 10 is useful at the same time as a heat sink and is made for this purpose of a suitable metal, preferably light metal or light metal alloy. In particular, the support body 10 is a metal extruded profile, which may be produced in particular by extrusion. The profiling of the support body 10 in the cross sections 6a to 6d recognizable.

Gemäß den Figuren 6a bis 6d weist der Tragkörper 10 einen Kanal 21 auf, der sich parallel zur Längsrichtung des Tragkörpers 10 erstreckt. Die Längsrichtung des Tragkörpers 10 steht in den Querschnitten der Figuren 6a bis 6d senkrecht zur Zeichnungsebene. Der Kanal 21 dient an den Längsenden 15, 17 der Leuchteinrichtung 5 zum Befestigen der jeweiligen Endkappe 12, 13. Hierzu kommen hier nicht gezeigte stiftförmige Befestigungselemente zum Einsatz, die axial stirnseitig in den Kanal 21 eindringen. Derartige Befestigungselemente können beispielsweise Schrauben oder Stifte, insbesondere Kerbstifte, sein, die in die jeweilige Endkappe 12, 13 gemäß den Figuren 2 und 3 jeweils in eine Einführöffnung 22 eingesteckt sind, den Werkstoff der jeweiligen Endkappe 12, 13 durchdringen und axial in den Kanal 21 eingreifen, um so die jeweilige Endkappe 12, 13 am Tragkörper 10 zu fixieren. Anstelle solcher separater Befestigungselemente können auch an der jeweiligen Endkappe 12 ausgeformte, stiftförmig abstehende Befestigungsabschnitte integral ausgebildet sein, die in den Kanal 21 eingreifen, so dass mit deren Hilfe die jeweilige Endkappe 12, 13 am Tragkörper 10 fixierbar ist.According to the FIGS. 6a to 6d the support body 10 has a channel 21 which extends parallel to the longitudinal direction of the support body 10. The longitudinal direction of the support body 10 is in the cross sections of FIGS. 6a to 6d perpendicular to the plane of the drawing. The channel 21 is used at the longitudinal ends 15, 17 of the lighting device 5 for securing the respective end cap 12, 13. For this purpose, not shown here pin-shaped fasteners are used, which penetrate axially into the end 21 in the channel. Such fasteners may be, for example, screws or pins, in particular grooved pins, which are in the respective End cap 12, 13 according to the FIGS. 2 and 3 are each inserted into an insertion opening 22, penetrate the material of the respective end cap 12, 13 and axially engage in the channel 21, so as to fix the respective end cap 12, 13 on the support body 10. Instead of such separate fastening elements, shaped, pin-shaped fastening sections may also be integrally formed on the respective end cap 12, which engage in the channel 21, so that with their help, the respective end cap 12, 13 on the support body 10 can be fixed.

Wie sich insbesondere den Figuren 3 bis 5 entnehmen lässt, können die LEDs 9 vorzugsweise entlang einer geradlinigen Reihe 23 an einer Vorderseite 24 der Platine 8 angeordnet sein. Sofern wie bei der hier bevorzugten Ausführungsform nur eine einzige derartige LED-Reihe 23 an der Platine 8 angeordnet ist, befindet sich diese zweckmäßig mittig an der Platine 8. Wie sich den Querschnitten der Figuren 6a bis 6d entnehmen lässt, kann der Tragkörper 10 an einer von der Platine 8 abgewandten Seite einen Kühlsteg 25 aufweisen, der gezielt so angeordnet ist, dass er sich im Bereich der LED-Reihe 23 befindet, wenn die Platine 8 am Tragkörper 10 angebracht ist. Im Beispiel ist der Kühlsteg 25 somit mittig am Tragkörper 10 angeordnet. Sofern der Tragkörper 10 als Strangprofil konfiguriert ist, lässt sich der Kühlsteg 25 besonders einfach integral am Tragkörper 10 ausformen. Der Kühlsteg 25 erstreckt sich im Querschnitt des Tragkörpers 10 im Wesentlichen quer bzw. radial zu dessen Längsmittelachse. Bei der hier gezeigten Ausführungsform ist außerdem der zuvor genannte Kanal 21 im Kühlsteg 25 ausgeformt. Der Kanal 21 ist hier ferner bezüglich der Längsachse der Leuchteinrichtung 5 radial offen, wodurch der Kühlsteg 25 in diesem Bereich quasi geteilt ist. Diese Maßnahme führt zu mehr Oberfläche am Tragkörper 10, die zur Abstrahlung von Wärme zur Verfügung steht. Insgesamt kann der Kühlsteg 25 somit gezielt dort Wärme aufnehmen und abführen, wo sie an der Platine 8 vorwiegend entsteht, nämlich im Bereich der LED-Reihe 23. Der Kühlsteg 25 trennt im Tragkörper 10 außerdem zwei Hohlkammern 26, 27 voneinander ab, wodurch der Tragkörper 10 insgesamt eine größere Oberfläche besitzt, die eine Abstrahlung von Wärme ermöglicht.How in particular the FIGS. 3 to 5 can be removed, the LEDs 9 may preferably be arranged along a rectilinear row 23 on a front side 24 of the board 8. If, as in the embodiment preferred here, only a single such LED row 23 is arranged on the circuit board 8, this is expediently located centrally on the circuit board 8. As the cross sections of FIGS FIGS. 6a to 6d can remove, the support body 10 may have on a side facing away from the board 8 side of a cooling bar 25 which is selectively arranged so that it is in the range of the LED row 23 when the board 8 is attached to the support body 10. In the example, the cooling web 25 is thus arranged centrally on the support body 10. If the carrier body 10 is configured as an extruded profile, the cooling bar 25 can be formed integrally on the carrier body 10 in a particularly simple manner. The cooling web 25 extends in cross section of the support body 10 substantially transversely or radially to its longitudinal central axis. In the embodiment shown here, moreover, the aforementioned channel 21 is formed in the cooling web 25. The channel 21 is here also radially open with respect to the longitudinal axis of the lighting device 5, whereby the cooling fin 25 is virtually divided in this area. This measure leads to more surface on the support body 10, which is available for the emission of heat. Overall, the cooling bar 25 thus selectively absorb heat there and dissipate, where it arises predominantly on the board 8, namely in the range of the LED row 23. The cooling web 25 separates in the support body 10 also two hollow chambers 26, 27 from each other, whereby the Carrying body 10 has a total of a larger surface area, which allows a radiation of heat.

Entsprechend den Figuren 2 bis 6 weist der Tragkörper 10 zwei Haltestege 28, 29 auf, die sich entlang von sich gegenüberliegenden Längsseiten des Haltebereichs 14 parallel zur Längsachse der Leuchteinrichtung 5 erstrecken. Gemäß Figur 6d kann an diesen Haltestegen 28, 29 die Abdeckung 11 befestigt werden. Die Haltestege 28, 29 sind zweckmäßig integral am Tragkörper 10 ausgeformt, was besonders einfach bei der Verwendung eines Strangprofils für den Tragkörper 10 möglich ist. Wie sich den Figuren 6c und 6d entnehmen lässt, übergreift der jeweilige Haltesteg 28, 29 einen Längsseitenrand 30 bzw. 31 der Platine 8. Dabei drückt der jeweilige Haltesteg 28, 29 die Platine 8 im Bereich des jeweiligen Längsseitenrands 30, 31 an den Haltebereich 14 und somit an den Tragkörper 10 an. Hierdurch ist gleichzeitig die Platine 8 hinreichend sicher am Tragkörper 10 fixiert. Bevorzugt ist dabei die hier gezeigte Ausführungsform, bei welcher der jeweilige Haltesteg 28, 29 zum Befestigen und Anpressen der Platine 8 am Tragkörper 10 plastisch umgeformt ist. Hierdurch lassen sich besonders hohe Anpresskräfte und Haltekräfte realisieren. Gleichzeitig kann die Anpressung und Fixierung der Platine 8 am Tragkörper 10 besonders einfach über die gesamte Länge der Platine 8 realisiert werden, wenn sich der jeweilige Haltesteg 28, 29 über die gesamte axiale Länge des Tragkörpers 10 erstreckt und auch über seine gesamte axiale Länge umgeformt wird.According to the FIGS. 2 to 6 the support body 10 has two retaining webs 28, 29 which extend along opposite longitudinal sides of the holding region 14 parallel to the longitudinal axis of the lighting device 5. According to FIG. 6d can be attached to these retaining webs 28, 29, the cover 11. The holding webs 28, 29 are expediently integrally formed on the support body 10, which is particularly simple when using an extruded profile for the support body 10 is possible. How the FIGS. 6c and 6d The respective holding web 28, 29 presses the board 8 in the region of the respective longitudinal side edge 30, 31 against the holding region 14 and thus against the carrier body 10 , As a result, the board 8 is at the same time sufficiently securely fixed to the support body 10. Preferred here is the embodiment shown here, in which the respective retaining web 28, 29 for attaching and pressing the board 8 on the support body 10 is plastically deformed. As a result, particularly high contact forces and holding forces can be realized. At the same time the pressing and fixing of the board 8 on the support body 10 can be particularly easily realized over the entire length of the board 8, when the respective holding web 28, 29 extends over the entire axial length of the support body 10 and is also formed over its entire axial length ,

Entsprechend den Figuren 6a bis 6d weist der jeweilige Haltesteg 28, 29 einen Greifbereich 32 und einen Clipbereich 33 auf. Der Greifbereich 32 dient zum Übergreifen der Platine 8. Der Clipbereich 33 dient zum Einclipsen der Abdeckung 11, die hierzu randseitig jeweils eine entsprechende, komplementäre Clipkontur 34 aufweist.According to the FIGS. 6a to 6d the respective holding web 28, 29 has a gripping area 32 and a clip area 33. The gripping region 32 serves for reaching over the printed circuit board 8. The clip region 33 is used for clipping the cover 11, which has a corresponding, complementary clip contour 34 at the edge for this purpose.

Die Montage der Leuchteinrichtung 5 kann beispielsweise wie folgt erfolgen:

  • In einem Ausgangszustand gemäß Figur 6a befinden sich die Halteelemente 28, 29 in einem unverformten Ausgangszustand. Gemäß Figur 6b lässt sich die Platine 8 in diesem Ausgangszustand besonders einfach am Haltebereich 14 anlegen. Die Platine 8 wird dabei mit einer von den LEDs 9 abgewandten Rückseite 36 mit dem Haltebereich 14 kontaktiert. Der Haltebereich 14 kann hierzu komplementär zur Rückseite 36 geformt sein. Bevorzugt besitzt der Haltebereich 14 an seiner der Platine 8 zugewandten Vorderseite eine Anlagefläche 39, die im Querschnitt und in der Längsrichtung des Tragkörpers 10 vollständig oder zumindest weitgehend, also zu mindestens 50%, vorzugsweise zu mindestens 75%, durchgehend ausgestaltet ist. Im gezeigten Beispiel ist die Rückseite 36 der Platine 8 eben konfiguriert. Dementsprechend ist hier auch der Haltebereich 14 eben ausgestaltet. Hierdurch kann eine großflächige Kontaktierung zwischen Platine 8 und Tragkörper 10 realisiert werden. Bevorzugt liegt dabei die Platine 8 entlang ihrer gesamten Rückseite 36 flächig an der Anlagefläche 39 an. Gemäß einer bevorzugten Ausführungsform ist der Haltebereich 14 im Querschnitt, der senkrecht zur Längsrichtung des Tragkörpers 10 geschnitten ist, an seiner der Platine 8 zugewandten Vorderseite zur Platine 8 hin konvex gekrümmt.
The installation of the lighting device 5 can be done, for example, as follows:
  • In an initial state according to FIG. 6a The holding elements 28, 29 are in an undeformed initial state. According to FIG. 6b allows the board 8 in this initial state particularly easy to create the holding area 14. In this case, the printed circuit board 8 is contacted with the holding region 14 with a rear side 36 facing away from the LEDs 9. The holding portion 14 may be formed to complement the back 36 for this purpose. The holding region 14 preferably has a contact surface 39 on its front side facing the printed circuit board 8, which is designed to be continuous or at least largely, ie at least 50%, preferably at least 75%, in cross section and in the longitudinal direction of the carrier body 10. In the example shown, the rear side 36 of the board 8 is just configured. Accordingly, the holding area 14 is also designed here. In this way, a large-area contact between board 8 and support body 10 can be realized. In this case, the board 8 preferably rests flat against the contact surface 39 along its entire rear side 36. According to a preferred embodiment, the holding region 14 in cross section, which is cut perpendicular to the longitudinal direction of the support body 10, convexly curved on its front side facing the circuit board 8 to the board 8.

Nach dem Auflegen der Platine 8 erfolgt die Umformung der Haltestege 28, 29 gemäß Figur 6c, wodurch diese plastisch verformt werden, derart, dass sie mit dem jeweiligen Greifbereich 32 den zugehörigen Längsseitenrand 30, 31 übergreifen und gegen den Haltebereich 14 andrücken. Die Umformung kann beispielsweise mittels eines Rolierverfahrens erfolgen. Bei konvex gewölbtem Haltebereich 14 kommt es dabei zu einer Vorspannung der Platine 8, bei der sie ebenfalls im Querschnitt gewölbt wird. Hierdurch wird eine großflächige, vorgespannte Kontaktierung zwischen Platine 8 und Haltebereich 14 erzwungen.After placing the board 8, the deformation of the retaining webs 28, 29 according to FIG. 6c , whereby they are plastically deformed, such that they overlap with the respective gripping region 32 the associated longitudinal side edge 30, 31 and press against the holding portion 14. The deformation can be done for example by means of a Rolierverfahrens. In the case of a convexly curved holding region 14, a prestressing of the printed circuit board 8 takes place in which it is likewise arched in cross section. As a result, a large-area, biased contact between board 8 and holding portion 14 is enforced.

Anschließend kann gemäß Figur 6d die Abdeckung 11 an die Haltestege 28, 29 angeclipst werden. Abschließend können die Endkappen 12, 13 aufgesteckt und gegebenenfalls mit separaten Befestigungselementen am Tragkörper 10 fixiert werden.Subsequently, according to FIG. 6d the cover 11 to the holding webs 28, 29 are clipped. Finally, the end caps 12, 13 plugged and optionally fixed with separate fasteners on the support body 10.

Wie sich insbesondere Figur 6d entnehmen lässt, erstreckt sich der Tragkörper 10 entlang einer in Figur 6d durch einen Doppelpfeil angedeuteten Umfangsrichtung 35 über mehr als 180°. Im Beispiel erstreckt sich der Tragkörper 10 in der Umfangsrichtung 35 über etwa 230°. Diese Bauform hat zur Folge, dass möglichst viel metallische Oberfläche zur Verfügung steht, die eine Wärmeabstrahlung nach außen ermöglicht. Besonders zweckmäßig ist dabei eine Ausführungsform, bei welcher der Tragkörper 10 selbst unmittelbar einen Anteil einer Außenkontur der Leuchteinrichtung 5 bildet. Wie sich Figur 6d entnehmen lässt, beträgt der Anteil des Tragkörpers 10 an dieser Außenkontur mehr als 50 %.How, in particular FIG. 6d can be seen, the support body 10 extends along a in FIG. 6d indicated by a double arrow circumferential direction 35 over more than 180 °. In the example, the support body 10 extends in the circumferential direction 35 about 230 °. This design has the consequence that as much as possible metallic surface is available, which allows a heat radiation to the outside. Particularly useful is an embodiment in which the support body 10 itself directly forms a portion of an outer contour of the lighting device 5. Like yourself FIG. 6d can be seen, the proportion of the support body 10 at this outer contour is more than 50%.

Gemäß Figur 4 kann die erste Fassung 6 zwei Prüföffnungen 37, 38 aufweisen, durch die hindurch Prüfsonden von außen in die erste Fassung 12 einführbar sind, um auch bei daran angebrachter Leuchteinrichtung 5 die Funktion der Leuchte 2 bzw. der Leuchteinrichtung 5 testen zu können. Hierdurch verfügt die erste Fassung 6 über eine Toptest-Funktion.According to FIG. 4 the first version 6 can have two test openings 37, 38, through which test probes can be inserted from the outside into the first socket 12 in order to be able to test the function of the luminaire 2 or of the luminous device 5 even when the luminous device 5 is attached thereto. As a result, the first version 6 has a top test function.

Claims (13)

  1. Lighting device comprising
    - a linear and elongated circuit board (8), which bears a plurality of LEDs (9),
    - a linear and elongated support body (10), which has a holding area (14) for the circuit board (8), in which the circuit board (8) is arranged,
    - a straight and elongated cover (11) which is fixed onto the support body (10) and thereby covers the circuit board (8),
    - a first end cap (12), which is fitted at a first longitudinal end (15) of the lighting device (5) onto the support body (10) and the cover (11) and which comprises electrical connecting elements (16) connected to the circuit board (8), which protrude axially from the first end cap (12) and are provided for the electrical and mechanical connection of the lighting device (5) to a first socket (6),
    - a second end cap (13), which is fitted at a second longitudinal end (17) of the lighting device (5) onto the support body (10) and the cover (11) and comprises mechanical connecting elements (18), which protrude axially out from the second end cap (13) and are provided for mechanically connecting the lighting device (5) to a second socket (7) opposite the first socket (6),
    - wherein the lighting device (5) can be connected to an electrical power supply solely via the connecting elements (16) of the first end cap (12),
    - wherein the LEDs (9) are arranged in a straight row (23),
    - wherein the support body (10) comprises a cooling vane (25) on a side facing away from the circuit board (8) in the region of the row (23) which cooling vane is formed integrally on the support body (10),
    characterised in that
    - the cooling vane (25) in the support body (10) separates two hollow chambers (26, 27) from one another,
    - the support body (10) in the cooling vane (25) comprises a channel (21) which extends radially outwards parallel to the longitudinal direction of the support body (10) and is open to the surroundings of the lighting device (5).
  2. Lighting device according to claim 1,
    characterised in that
    - the holding area (14) comprises a bearing surface (39),
    - the circuit board (8) bears flat on the bearing surface (39) along its entire rear side (36).
  3. Lighting device according to claim 2,
    characterised in that
    the bearing surface (39) is curved convexly towards the circuit board (8) in cross-section).
  4. Lighting device according to any one of the preceding claims,
    characterised in that
    the lighting device (5) does not have a PE conductor
  5. Lighting device according to any one of the preceding claims,
    characterised in that
    the connecting elements (16, 18) of the two end caps (12, 13) are geometrically different.
  6. Lighting device according to any one of the preceding claims,
    characterised in that
    the support body (10) is a metal press-drawn section.
  7. Lighting device according to any one of the preceding claims,
    characterised in that
    a securing element for securing the respective end cap (12, 13) onto the support body (10) engages axially in the channel (21) at the face end.
  8. Lighting device according to any one of the preceding claims,
    characterised in that
    the support body (10) has a holding web (28, 29) along each opposite longitudinal side of the holding area (14), to which holding webs the cover (11) is secured.
  9. Lighting device according to any one of the preceding claims,
    characterised in that
    the support body (10) has a holding web (28, 29) along each opposite longitudinal side of the holding area (14), which holding web grips respectively over a longitudinal side edge (30, 31) of the circuit board (8) and thus secures the circuit board to the support body (10) presses it onto the latter.
  10. Lighting device according to claim 9,
    characterised in that
    the respective holding web (28, 29) is shaped plastically to secure and press the circuit board (8) onto the support body (10).
  11. Lighting device according to any one of claims 8 to 10,
    characterised in that
    the respecting holding web (28, 29) comprises a gripping area (32) for gripping over the circuit board (8) and a clipping area (33) for clipping into the cover (11).
  12. Lighting device according to any one of the preceding claims,
    characterised in that
    - the support body (10) extends by more than 180° along a circumference of the lighting device (5) and/or
    - the support body (10) directly forms a portion of an external contour of the lighting device (5).
  13. Light comprising
    - at least one lighting device (5) according to any one of the preceding claims,
    - a light housing (2), which comprises the respective first socket (6) and the respective second socket (7),
    - wherein the respective lighting device (5) is connected electrically and mechanically to the light housing (2) via the first socket (6) and is connected only mechanically to the light housing (2) via the second socket (7).
EP14177081.8A 2013-07-15 2014-07-15 Luminaire with a luminous device Active EP2827055B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14177081T PL2827055T3 (en) 2013-07-15 2014-07-15 Luminaire with a luminous device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013213767.2A DE102013213767A1 (en) 2013-07-15 2013-07-15 Luminaire with lighting device

Publications (2)

Publication Number Publication Date
EP2827055A1 EP2827055A1 (en) 2015-01-21
EP2827055B1 true EP2827055B1 (en) 2016-12-28

Family

ID=51205243

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EP (1) EP2827055B1 (en)
DE (1) DE102013213767A1 (en)
PL (1) PL2827055T3 (en)

Families Citing this family (5)

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DE102015122566A1 (en) 2015-12-22 2017-06-22 Rehau Ag + Co Lighting system comprising several light units
DE102015122510A1 (en) 2015-12-22 2017-06-22 Rehau Ag + Co Lighting device with an elongated lamp and a protective element made of a plastic material
DE202016104177U1 (en) 2016-07-29 2017-11-02 Rehau Ag + Co lighting device
DE202016106102U1 (en) 2016-10-31 2018-02-01 Rehau Ag + Co lighting device
DE202017105803U1 (en) 2017-09-25 2019-01-09 Rehau Ag + Co lighting device

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Publication number Publication date
DE102013213767A1 (en) 2015-01-15
EP2827055A1 (en) 2015-01-21
PL2827055T3 (en) 2017-05-31

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