EP2650594B1 - Light with lamp - Google Patents

Description

The present invention relates to a lamp for a lamp for wall and / or ceiling mounting, with the features of claim 1. The invention also relates to a lamp with at least one such lamp.

Luminaires, which are suitable for the production of a light band, usually have a rectilinear shape, whereby the lights can line up like a line or band, so that they abut each other frontally. Lamps that are suitable for such rectilinear luminaires may also have a rectilinear shape and may conveniently be designed rod-shaped or tubular. Fluorescent tubes are generally known which have a glass cylinder which contains a phosphor gas and which has electrical connections at its axial ends. The associated lights have brackets with integrated electrical contacts, in which the fluorescent tubes are used, such that the brackets are located on the outside of the longitudinal ends of the respective fluorescent tube.

With the aim of saving electrical energy, it is known to replace such fluorescent tubes with LED tubes, that is, by lamps in which a plurality of LEDs (LED for light-emitting diode) are housed in a transparent tube body for the light to be emitted. So that these LED tubes can be used in place of conventional fluorescent tubes in conventional lights, a power electronics required for this purpose is integrated into the respective LED tube, for example to convert a mains voltage to a voltage required by the LEDs.

The LED tubes are relatively heavy and expensive. Furthermore, LEDs generate comparatively much heat, which comparatively high temperatures are achieved in the tubular body, which reduces the life of the LEDs and the power electronics. The weight of the LED tubes makes their secure mounting on or in a luminaire difficult. In particular, it may be necessary to reinforce a luminaire housing in the region of the end-side brackets.

A generic lamp is eg from the US 2011/0297971 A1 known. It has a board, which carries a plurality of LEDs, and a platinum carrier, which is designed as a linear profile body, which carries the respective board on an upper side and the carrier-side fixing means for attaching the lamp to or in the respective lamp and electrical connection means for having electrical contact of the lamp with a power supply of the respective lamp. Further, a cover is provided, which is designed as a straight profile body which is transparent to light of the LEDs, which is attached to the platinum carrier and which limits a cavity on the upper side of the platinum carrier, in which the respective circuit board is arranged with the LEDs. In the known lamp is provided, integrated power electronics for powering the lamp in the lamp.

From the US 2008/0219002 A1 For example, a lamp is known which has an end cap at each of its longitudinal ends. One of these end caps has two electrical connections, which are electrically connected to corresponding electrical contacts of the board. These connections are used to connect the lamp to external power electronics.

The present invention is concerned with the problem, for a lamp or for a lamp of the type mentioned in an improved embodiment specify, which is characterized in particular by an increased life of the lamp and / or by a simplified mounting between the lamp and the lamp housing.

This problem is solved in the present invention by the subject-matter of the independent claim. Advantageous embodiments are the subject of the dependent claims.

The invention is based on the general idea to equip the lamp with a platinum carrier and a cover, which are each designed as a straight profile body. The cover covers the board carrier on an upper side and can thereby define a cavity on the upper side of the board carrier. In this cavity, at least one, preferably rectilinear, board can be arranged on the upper side of the board carrier, wherein the respective board carries a plurality of LEDs. It is also proposed to arrange on a lower side of the platinum carrier, ie on a side facing away from the LEDs carrier side fixing means and electrical connection means, wherein the fastening means are provided for attaching the lamp to or in the respective lamp, while the connection means for electrical Kontaktiren the lamp with a power supply of the respective lamp are provided. Due to the proposed design, the LEDs are only on the top of the board carrier, while the underside can be used to radiate heat. In this way, the thermal load of the lamp can be reduced. Furthermore, arranged on the underside of the platinum carrier fastening means cause a holder which connects the lamp with the lamp or with a lamp housing, not outside of the longitudinal ends of the lamp, but is necessarily disposed between the longitudinal ends of the lamp. In particular, this makes it possible to choose the position of such a holder between the longitudinal ends of the lamp comparatively freely, whereby in particular an improved weight distribution can be realized, which relieves the respective holder. The arrangement of the electrical connection means on the underside of the PCB carrier opens up a greater freedom of design with regard to the positioning of corresponding light-side electrical connections. At the same time, the proposed construction allows a generally rod-shaped, rectilinear shape for the lamp. Unlike conventional LED tubes, which form a retrofit system due to their interchangeability with conventional fluorescent tubes, the lamp according to the invention presented here, together with an associated luminaire, defines a proprietary system which precludes replacement of conventional fluorescent tubes by the lamps according to the invention.

The improved heat dissipation from the LEDs, which can be realized with the aid of the board carrier, can also be used in particular to use a larger number of LEDs and / or more powerful LEDs, whereby the lamp presented here compared to conventional LED tubes of the same size can be equipped with a much higher light intensity.

The respective lamp is preferably elongate and thereby designed in a straight line, in particular rod-shaped or tubular.

According to an advantageous embodiment of the platinum support may be a metal profile, in particular a light metal profile, preferably an aluminum profile. By this design, the board carrier on the one hand has a very high stability, which in particular a sagging or sagging of the linear, rod-shaped lamp can be avoided. On the other hand, the metallic plate carrier can dissipate heat well, which generated by the LEDs during operation of the lamp and introduced via or through the respective board in the platinum carrier becomes. Thus, the thermal load of the lamp can be further reduced, which increases their lifetime.

In order to fix the board to the board carrier, an adhesive bond can be provided. Likewise, the board can be screwed or clipped to the board carrier. Particularly advantageous is an embodiment in which the board carrier has at its top side of the board at least one holding web as an integral part, which is formed to set the board on the platinum carrier, in particular rolled or rolled in, such that the respective holding web the board overlaps laterally. The board is thereby positively fixed without separate fasteners on the board carrier. In addition, the board can be very easily biased against the board carrier, which improves the heat transfer to the board carrier. Suitably, at least one such bent retaining web is provided on each longitudinal side of the board. If only a single retaining web is provided on the respective longitudinal side, this can extend over a substantial longitudinal section, preferably over the entire length, of the board. If a plurality of holding webs are provided on the respective longitudinal side, these are expediently distributed uniformly along the longitudinal side and arranged at a distance from one another.

In another embodiment, the board carrier may have on its side facing away from the board underside on both longitudinal sides in each case an engagement contour for a latching hook. Such a latching hook can be formed, for example, on the lamp, in particular on a lamp housing. The two engagement contours form the carrier-side fastening means or at least parts thereof. The engagement contours and the latching hook define a latching connection or clip connection, which allows easy mounting of the lamp on the lamp. The respective engagement contour can by a groove-like depression be formed on the respective longitudinal side of the platinum carrier, which extends in the longitudinal direction of the platinum carrier.

In another advantageous embodiment, the cover may have a C-shaped cross-sectional profile whose profile opening is closed by the platinum carrier. This embodiment leads to a design in which the board carrier is covered only on its upper side by the cover, while it is open on its underside and exposed to the environment. This measure improves the heat radiation of the platinum support to the environment via its underside.

Suitably, the cover can be attached directly to the board carrier. Conceivable is in particular a Verclipsung or Verrastung. For example, at the profile opening opposite profile leg of the cover may be equipped with locking lugs, which cooperate with corresponding latching contours, which may be formed on the longitudinal sides of the platinum carrier. The cover may, in particular by its manufacture from plastic, be designed to be resilient so far that it can be clipped onto the platinum carrier transversely to its longitudinal direction.

According to an advantageous embodiment, the carrier-side fastening means which are formed on the platinum carrier may be formed by at least one screw, in which at least one screw can be screwed to attach the lamp or in the lamp. Such a screw is characterized by a cross-sectional profile, which may have a groove profile or sawtooth profile on two opposite walls in the channel, which cooperates with a screw in the manner of a threaded segment. Alternatively, an embodiment with smooth channel walls is conceivable when self-tapping or self-tapping screws are used in the Screw in a thread in the walls or furrows. Since the respective screw extends within the profile body over the entire length of the platinum carrier, such a screw can be fastened at any point between the longitudinal ends of the platinum carrier, whereby a high flexibility for the positioning of a holder for connecting the lamp is given to the lamp ,

According to the invention, the electrical connection means have at least two lamp-side electrical contacts, which are electrically connected via at least two electrical lines with board-side electrical contacts, which in turn are electrically connected via conductor tracks of the respective board with the LEDs. In other words, no power electronics are provided between the LEDs and the electrical connection means of the lamp, so that the lamp presented here does not include any associated power electronics. Rather, such power electronics can now be arranged on or in the luminaire. This measure reduces the weight of the lamp on the one hand. On the other hand, the lamp can be realized thereby cheaper. Furthermore, the power electronics and the LEDs are thermally decoupled from each other in this way, whereby the life of the power electronics and / or LEDs can be significantly increased.

According to the invention at least one end cap is further provided, which is attached to a longitudinal end of the platinum carrier and the cover. Since the platinum carrier and the cover are each designed as profile body, which are produced in particular by extrusion or pultrusion, the respective end cap allows a frontal completion of the respective lamp, for example, the electrical components of the lamp, so in particular the LEDs from dust,

Protect dirt and moisture. In particular, the respective end cap can be clipped, screwed on, rolled on or glued on.

According to the invention, at least its such end cap now has cap-side electrical contacts which, when plugged in, electrically contact the board-side electrical contacts, and which are electrically connected to the above-mentioned electrical lines. In this embodiment, therefore, the electrical contacting of the boards takes place via this end cap, wherein the lines leading to the lamp-side electrical contacts, emanating from this end cap. As a result, for example, a cable feedthrough through the board carrier can be avoided.

According to a particularly advantageous development, it can be provided that the electrical lines are formed by means of electrical cables which extend over their entire length or only in a longitudinal section in a channel which is formed on the underside of the platinum carrier. This makes it possible the electrical lines or the associated cable from a longitudinal end of the lamp, suitably covered by the above-mentioned end cap to a quasi arbitrary position between the longitudinal ends of the lamp and thus protected to lay. A cable comprises at least one conduit and an electrical insulation surrounding the conduit.

A luminaire according to the invention, which is equipped with at least one lamp of the aforementioned type, comprises a luminaire housing for wall and / or ceiling mounting, to which or in which the respective lamp is attached. Furthermore, such a luminaire comprises at least power electronics for the power supply of the at least one lamp, this power electronics being arranged on or in the luminaire housing outside the respective lamp and being electrically connected to housing-side primary electrical connections, via which the luminaire can be electrically connected to a power supply. This power grid is located in a building having the respective wall or ceiling.

As a result of the construction according to the invention of the luminaire presented here, the lamp and the associated power electronics are thus separated from one another, as a result of which a thermal decoupling between the power electronics and the LEDs of the lamp is achieved on the one hand. On the other hand, this can also reduce the weight of the lamp, which simplifies the attachment of the lamp to the lamp housing.

According to an advantageous embodiment of the luminaire, at least one holding device for fastening the lamp to the luminaire housing can be provided. This holding device is arranged in an advantageous manner between the two longitudinal ends of the respective lamp. As a result, the weight distribution can be improved, which on the one hand relieves the holding device and on the other hand, a sagging or sagging of the lamp reduced. Preferably, at least two such holding devices are provided to secure the respective lamp to the lamp housing. The holding devices are each positioned between the longitudinal ends of the lamp and also spaced from each other in the longitudinal direction of the lamp.

According to an advantageous embodiment, at least one such holding device can have housing-side electrical secondary connections, which are electrically connected to the electrical connection means of at least one such lamp and which are electrically connected to at least one such power electronics. In other words, the electrical contacting of the respective lamp is expediently carried out via such a holding device which simultaneously effects the mechanical fastening of the lamp to the luminaire housing.

According to an advantageous development, the respective holding device may have a socket part fastened to the lamp housing and a plug part fastened to the at least one lamp which can be plugged together. In this way, a mechanical connector is realized, which significantly simplifies the attachment of the lamp to the lamp and which produces a mechanical attachment of the lamp to the lamp housing. For example, the respective lamp can be particularly easily connected to the respective connector part. Subsequently, the pre-assembled lamp can be plugged with the plug part in the associated, already mounted on the lamp housing socket part. In particular, this makes it possible to mount the respective lamp manually, in particular without tools, on the luminaire.

Particularly useful is a development in which the socket part and the plug part also define an electrical connector that in the plugged state socket-side contacts which are electrically connected to the respective power electronics, electrically connected to plug-side contacts, which are electrically connected to the secondary terminals. In other words, by inserting the plug into the socket or by attaching the plug to the socket both a mechanical connection and an electrical connection between the lamp and the lamp are made, which considerably simplifies the assembly. When making the mechanical attachment of the lamp to the lamp housing is thus automatically and at the same time the lamp is electrically connected to the power electronics.

According to another advantageous embodiment, at least one such holding device for adjusting a rotational position between at least one such lamp and the lamp housing with respect to a parallel to the longitudinal direction of the lamp and extending outside the lamp axis of rotation be configured. By changing the rotational position between the lamp and the lamp housing, it is possible to set a direction of emission of the lamp for the light emitted by the lamp. Unlike conventional fluorescent tubes or conventional LED tubes, which radiate uniformly in the circumferential direction, the lamp presented here has a preferred emission direction, which protrudes perpendicularly from the upper side of the platinum carrier, due to the arrangement of the LEDs exclusively at the upper side. Symmetrical to this emission then extends a Abstrahlkegel or Abstrahlkeil whose wedge angle is a maximum of 180 °. Due to the presented adjustability of the rotational position between the lamp and the luminaire housing, the emission direction of the lamp with respect to the luminaire housing can thus be adjusted in a particularly simple manner.

According to an advantageous development, the respective holding device may have a hinge defining the axis of rotation, which between a housing-side attachment point, via which the holding device on the lamp housing is attached, and a lamp-side attachment point is arranged, via which the holding device is attached to the lamp. The respective joint is thus located between the lamp and the lamp housing, whereby the setting of a Lichtabstrahlwinkels is simplified with respect to the lamp housing.

Particularly advantageous is an embodiment in which the holding device has at least one lamp part attached to the respective lamp and at least one housing part fastened to the lamp housing, which represent separate components and are fastened to one another. In this case, the two components can be movable, in particular articulated, connected to each other.

Particularly advantageous is a development in which either the respective lamp part via the aforementioned connector is releasably attached to the lamp or the respective housing part is releasably secured via said connector to the lamp housing.

According to another advantageous development, it can now be provided that the respective lamp part is held in a rotationally adjustable manner on the housing part via a hinge defining the respective axis of rotation. In this way, the rotational adjustability between the lamp and the lamp housing can be realized particularly inexpensively with the aid of the respective holding device.

According to a preferred development, the respective holding device can now have at least two such lamp parts which are held on a common housing part via a common joint or via separate joints. In particular, the two lamps can be adjusted independently relative to the luminaire housing with respect to their rotational position, which significantly improves the usability of the lamp.

According to another advantageous development, the respective joint may have a central part and two side parts, which are arranged with respect to the axis of rotation on both sides of the central part. The middle part may have on its axis of rotation with respect to the axial end faces a contact surface which is convex or concave curved or conical. By contrast, the respective side part may have a mating contact surface which is shaped to be complementary to the facing contact surface of the middle part and is in engagement therewith. The proposed shaping a particularly easy to produce joint can be realized in which the mutually adjustable components are held together via positive engagement in the region of the curved or conical, mutually engaging surfaces, wherein the mutually engaging surfaces at the same time a rotational adjustment to the allow concentric axis of rotation.

Particularly advantageous is a development in which at least in one side part, the counter contact surface and the associated contact surface are ribbed in a star shape with respect to the axis of rotation. By such a ribbing, the rotational adjustment of the lamp with respect to the lamp housing can be realized stepped around the axis of rotation, wherein the individual stages are defined by the ribs of the ribbing. At the same time, the ribs cause the respective adjusted relative position to be comparatively stable.

In another advantageous embodiment, the housing part may comprise the socket part and a connecting part of the plug part, in which case the plug part has the connecting part and at least one such lamp part. The respective holding device thus comprises at least three individual components, namely the socket part, the connecting part and at least one lamp part. The holding device can be particularly easy to produce.

Suitably, in an advantageous embodiment, the luminaire housing having a rectilinear support profile for wall and / or ceiling mounting and at least one attached rectilinear equipment carrier on which the at least one power electronics is arranged and to which the at least one holding device is attached. As a result, the lamp housing has a comparatively easy to implement construction, which also allows easy installation.

According to an expedient embodiment, the respective equipment carrier can be secured by at least one locking device on the support profile, which is characterized by a particularly high stability and strength in the connection between equipment carrier and support profile. Suitably, the respective holding device can now be fastened to the device carrier in the region of such a locking device. In this way it is achieved that the weight of the lamp is introduced via the respective holding device in the region of the respective locking device in the equipment carrier. In the area of the respective locking device, however, the device carrier has due to its secure connection to the support profile a particularly high rigidity and stability, which simplifies the mounting of the lamp on the lamp housing.

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.

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.

Preferred embodiments of the invention are illustrated in the drawings and will be described in more detail in the following description, wherein like reference numerals refer to the same or similar or functionally identical components.

Fig. 1

eine Seitenansicht einer Leuchte,

Fig. 2

ein Querschnitt der Leuchte bei einer Ausführungsform mit genau einer Lampe,

Fig. 3

ein Querschnitt der Leuchte bei einer Ausführungsform mit genau zwei Lampen,

Fig. 4

eine axiale Ansicht einer Halteeinrichtung für eine einzige Lampe,

Fig. 5

eine Axialansicht der Halteeinrichtung für genau zwei Lampen,

Fig. 6

eine Seitenansicht (a) und eine axiale Ansicht (b) eines Buchsenteils der Halteeinrichtung,

Fig. 7

eine Seitenansicht (a) und eine axiale Ansicht (b) eines Lampenteils der Halteeinrichtung,

Fig. 8

eine Seitenansicht (a) und eine axiale Ansicht (b) eines Verbindungsteils der Halteeinrichtung für eine einzige Lampe,

Fig. 9

eine Seitenansicht (a) und eine axiale Ansicht (b) des Verbindungsteils der Halteeinrichtung für genau zwei Lampen,

Fig. 10

eine Seitenansicht einer Lampe,

Fig. 11

ein Querschnitt der Lampe,

Fig. 12

eine isometrische Ansicht der Lampe,

Fig. 13

eine Seitenansicht der Lampe in auseinander gezogener Darstellung,

Fig. 14

ein Querschnitt der Lampe in auseinander gezogener Darstellung,

Fig. 15

eine isometrische Ansicht der Lampe in auseinander gezogener Darstellung,

Fig. 16

ein Querschnitt der Lampe im Bereich eines Platinenträgers bei einer anderen Ausführungsform.

Show, in each case schematically,

Fig. 1

a side view of a lamp,

Fig. 2

a cross section of the lamp in an embodiment with exactly one lamp,

Fig. 3

a cross section of the lamp in an embodiment with exactly two lamps,

Fig. 4

an axial view of a holding device for a single lamp,

Fig. 5

an axial view of the holding device for exactly two lamps,

Fig. 6

a side view (a) and an axial view (b) of a socket part of the holding device,

Fig. 7

a side view (a) and an axial view (b) of a lamp part of the holding device,

Fig. 8

a side view (a) and an axial view (b) of a connecting part of the holding device for a single lamp,

Fig. 9

a side view (a) and an axial view (b) of the connecting part of the holding device for exactly two lamps,

Fig. 10

a side view of a lamp,

Fig. 11

a cross section of the lamp,

Fig. 12

an isometric view of the lamp,

Fig. 13

a side view of the lamp in exploded view,

Fig. 14

a cross section of the lamp in exploded view,

Fig. 15

an isometric view of the lamp in an exploded view,

Fig. 16

a cross section of the lamp in the region of a platinum carrier in another embodiment.

According to the Fig. 1 to 3 a luminaire 1 comprises a luminaire housing 2 and at least one lamp 3 Fig. 2 In the embodiment shown, the luminaire 1 has exactly one lamp 3 which, in FIG Fig. 2 However, in two different relative rotational positions relative to the lamp housing 2 is shown. In a downward starting position, the lamp is denoted by 3. In a right-angled position, the lamp is designated 3 '. In the Fig. 3 In contrast, the embodiment shown has exactly two lamps 3, the right-hand lamp 3 being shown again in two relative positions with respect to the lamp housing 2. In the downward starting position the lamp is labeled 3. In contrast, in the relative position which is pivoted to the right, the lamp is denoted by 3 '. It is clear that in principle an embodiment with three or more such lamps 3 can be realized.

For fixing the respective lamp 3 to the lamp housing 2, at least one holding device 4 is provided. In the presentation of the Fig. 1 , which shows only one end portion of the lamp 1, only one such holding device 4 can be seen. Conveniently, however, two such holding devices 4 are provided to secure the respective lamp 3 on the lamp housing 2. It is noteworthy that the respective holding device 4 is arranged between two longitudinal ends 5 of the respective lamp 3, wherein in Fig. 1 only the left longitudinal end 5 can be seen. The adjacent to this longitudinal end 5 holding device 4 has a significant distance to this longitudinal end 5, which is measured parallel to a longitudinal direction 6 of the lamp 3. The respective lamp 3, like the luminaire 2, has a rectilinear shape.

In the lamp housing 2, at least one power electronics 7 is housed, which serves to power the respective lamp 3. In Fig. 3 exemplified such power electronics 7 is shown. It is clear that even at the in Fig. 2 shown embodiment, at least one such power electronics 7 is arranged in the housing 2. The power electronics 7 is arranged in the luminaire housing 2 outside the respective lamp 3. Further, the power electronics 7 is electrically connected via corresponding electrical lines 8 with housing-side primary electrical connections 9, via which the lamp 1 is electrically connected to a not shown here power supply.

The holding device 4 shown here has housing-side electrical secondary terminals 10, on the one hand with electrical connection means 11 of the respective Lamp 3 and on the other hand electrically connected to the respective power electronics 7.

How in particular the Fig. 4 to 9 can be removed, the respective holding device 4 comprises a fixed to the lamp housing 2 or fastenable socket part 12 and a fastened to the respective lamp 3 or fastened plug part 13, according to the Fig. 2 to 5 can be plugged together and define a mechanical connector. Furthermore, socket part 12 and plug part 13 also define, at least in one of the holding devices 4, an electrical plug-in connection which, in the inserted state according to FIGS Fig. 2 and 3 socket-side contacts 14 with plug-side contacts 15 electrically connects when plug part 13 and socket part 12 are inserted into one another. The socket-side contacts 14 are electrically connected via lines 16 to the power electronics 7. The plug-side contacts 15, however, are electrically connected via corresponding lines 17 to the secondary terminals 10.

How the Fig. 2 . 4 and 11 to 15 can be seen, the respective lamp 3, at least one circuit board 18 which carries a plurality of LEDs 19. Furthermore, the respective lamp 3 has a platinum carrier 20, which is designed as a rectilinear profile body and which has an upper side 21 and an underside 22 facing away therefrom. The circuit board 18 is arranged on the upper side 21, so that the LEDs 19 are also located only on the upper side 21. The holding device 4 is attached to the underside 22 of the platinum carrier 20. To realize the holding device 4, the platinum carrier 20 has on its underside 22 carrier-side fastening means 42, which will be discussed in more detail below.

Due to the structure shown, the lamp 3 has a predetermined emission direction, whose main axis or main plane in the Fig. 2 and 3 denoted by 23.

According to the Fig. 2 to 9 For example, the holding device 4 shown here can be designed such that a rotational position between the respective lamp 3 and the lamp housing 2 with respect to a rotation axis 24 is adjustable, which extends parallel to the longitudinal direction 6 of the respective lamp 3 and outside the respective lamp 3. According to the Fig. 4 to 9 the respective holding device 4 has at least one hinge 25 which defines the axis of rotation 24 and which is arranged between a housing-side attachment point 26 and a lamp-side attachment point 27. About the housing-side attachment point 26, the holding device 4 is attached to the housing 2. About the lamp-side attachment point 27, the holding device 4 is attached to the respective lamp 3. In the embodiments shown here, the respective holding device 4 for the respective lamp 3 comprises a lamp part 28 which is fixed to the respective lamp 3, and a housing part 29 which is fixed to the lamp housing 2. In this case, the respective lamp part 28 is rotatably held on the housing part 29 via the hinge 25 defining the associated axis of rotation 24. At the in Fig. 4 shown embodiment, only a single lamp part 28 is held rotatably adjustable via the hinge 25 on the housing part 29. At the in Fig. 5 shown embodiment, the holding device 4, however, has exactly two such lamp parts 28, which are held on two separate joints 25 on a common housing part 29 about separate axes of rotation 24 rotationally adjustable. Visible, the two joints 25 are independent of each other, so that the attached to the lamp parts 28 lamps 3 are independent of each other with respect to the lamp housing 2 rotatable.

Like that Fig. 2 and 3 can be removed, the main radiation direction 23 of the respective lamp 3 can be adjusted at least in one direction within an adjustment range 54 with the aid of the respective joint 25.

Like that Fig. 4 to 9 can be seen further, the respective joint 25 has a Mitteilteil 30 and two side parts 31, wherein the two side parts 31 are arranged with respect to the axis of rotation 24 on either side of the central part 30. The respective central part 30 has at its axial end faces 32, which are remote from each other, each having a contact surface 33, which has a concave conicity in the examples shown. In contrast to this, the side parts 31 each have on a side facing the middle part 30 a mating contact surface 34, which is shaped complementarily to the associated or facing contact surface 33 and is in engagement therewith. In the example shown, the mating contact surfaces 34 are thus provided with a convex conicity. The selected Konizitäten are aligned coaxially with the axis of rotation 24, whereby the mutually engaging surfaces 33, 34 define the axis of rotation 24.

In the embodiments shown here, both mating contact surfaces 34 and the associated contact surfaces 33 are ribbed in a star shape with respect to the axis of rotation 24, i. a plurality of ribs 35 arranged in a star shape with respect to the axis of rotation 24 are provided. The ribs 35 of the contact surfaces 33 are matched to the ribs 35 of the mating contact surfaces 34 so that the lamp parts 28, which have the side parts 31, are rotationally adjustable with respect to the housing part 29, which has the central part 30.

How in particular the 4 and 5 can be seen, the respective housing part 29 comprises on the one hand the socket part 12 and on the other hand, a connecting part 36 of the plug part 13, while the plug part 13 next to the connecting part 36 has at least one such lamp part 28.

The Fig. 6a and 6b show two rotated by 90 ° to each other views of such a female part 12 which can be secured to the lamp housing 2 in a suitable manner. Preferred here is a clip connection. Preferred is it is the socket part 12 to a one-piece injection molded part, in particular made of plastic.

The Fig. 7a and 7b show a lamp part 28 in two rotated by 90 ° to each other views. Visible, the lamp part 28 comprises the two side parts 31. Preferably, the lamp part 28 is a one-piece injection molded part, in particular made of plastic.

The Fig. 8a and 8b show such a connecting part 36 for an embodiment with only one joint 25 in two rotated by 90 ° to each other views. Preferably, the connecting part 36 is a one-piece injection-molded part, in particular made of plastic.

The Fig. 9a and 9b show such a connecting part 36 for an embodiment with two joints 25. Preferably, this connecting part 36 is a one-piece injection molded part, in particular made of plastic.

According to the Fig. 2 and 3 the luminaire housing 2 preferably comprises a rectilinear support profile 37 which is suitable for wall or ceiling mounting, and at least one rectilinear equipment support 38 attached to the support profile 37, to which the power electronics 7 and the respective holding device 4 are attached. The device carrier 38 is in the embodiment shown here clipped into the support section 37 at the edge, whereby a detachable connection between the device carrier 38 and support section 37 is made. To secure this detachable connection, at least one in Fig. 1 indicated locking device 39 may be provided, which is adjustable between a locking state and an unlocked state. In the locked state, the locking device 39 leads to an intensive stiffening of the lamp housing 2 in the region of the locking device 39. At the same time thereby the device carrier 38 is secured to the support section 37. recognizable is now according to Fig. 1 the respective holding device 4 is fastened to the device carrier 38 in the region of such a locking device 39. Thus, the holding device 4 is arranged in the region of maximum rigidity of the lamp housing 2.

The in the Fig. 1 to 3 shown light 1 can be used, for example, for producing a light band, not shown here, in which at least two such lamps 1 abut each other frontally.

According to the 10 to 15 the respective lamp 3 next to the board 18 with the LEDs 19 and the board carrier 20 also includes a cover 40 which is also configured as a straight profile body and which is transparent or translucent for the light of the LEDs 19. The cover 40 may be slightly opaque to homogenize the light output of the singular LEDs 19. The cover 40 is also attached to the platinum support 20, specifically in such a way that it delimits a cavity 41 on the upper side 21 of the platinum support 20, in which the circuit board 18 with the LEDs 19 is arranged. The platinum carrier 20 has on its underside 22 carrier-side fastening means 42, by means of which the lamp 3 can be attached to or in the respective lamp 1, and the already mentioned electrical connection means 11, of which in Fig. 11 purely exemplary two lines 43 are indicated. About this connection means 11, the respective lamp 3 can be electrically contacted with a power supply of the associated lamp 1. This power supply includes the power electronics. 7

Visible, the lamp 3 is designed rod-shaped. However, the lamp 3 does not have a circular cross-section, but rather a D-shaped cross-section.

The platinum carrier 20 is preferably a metal profile, in particular a light metal profile, preferably an aluminum profile. On the one hand, the metallic platinum carrier 20 generates high stability and dimensional stability for the lamp 3. On the other hand, the metallic platinum carrier 20 can dissipate heat which is generated by the LEDs 19 during operation of the lamp 3 to the outside. This is facilitated in particular by the fact that the LEDs 19 are arranged exclusively on the upper side 21, so that the underside 22 is available for radiating the heat to the surroundings.

The cover 40 is C-shaped in profile, wherein a profile opening 44 is closed by the platinum carrier 20. In other words, the C-shaped cross-sectional profile of the cover 40 is placed on the top 21 of the board carrier 20. In this way, the aforementioned cavity 41 is limited on the one hand by the cover 40 and on the other hand by the platinum carrier 20, in particular closed by the top 21 in the circumferential direction.

Preferably, the cover 40 is attached directly to the platinum carrier 20. Shown in the example is a clip connection 45 in which latching noses 46, which is formed on opposite walls of the C-shaped cross-sectional profile of the cover 40, engage corresponding latching contours 47, which are between the top side 21 and bottom 22 on opposite longitudinal sides of the board carrier 20 are formed.

In the example shown, the carrier-side fastening means 42 are formed by a single, central screw 48 having facing each other, equipped with a rib profile or sawtooth channel walls, such that in the screw 48 at least one screw (not shown) can be screwed, for example, in Area of the lamp-side attachment point 27 to screw the respective lamp part 28 to the board carrier 20.

The electrical connection means 11 preferably comprise two lamp-side electrical contacts 55, which are electrically connected via the aforementioned electrical lines 43 with board-side electrical contacts 49, which in turn are electrically connected via conductor tracks 50 with the LEDs 19. The conductor tracks 50 are integrally formed on the board 18.

These lamp-side contacts 55 can then be electrically contacted with the secondary terminals 10 of the respective holding device 4 when mounting the lamp 3.

Preferably, the lamp 3 has at least at one of its longitudinal ends 5 an end cap 51 which is attached to the respective longitudinal end of the platinum carrier 20 and the cover 40. As in Fig. 13 indicated, at least one such end cap 51 may have cap-side electrical contacts 52 which are positioned in the end cap 51 so that when plugging the end cap 51 onto the board carrier 20, the above mentioned board side electrical contacts 49 electrically contact. Furthermore, the cap-side contacts 52 are electrically connected to the aforementioned electric wires 43.

In the assembled state, the lines 43, which are preferably formed by means of electrical cables, be laid in channels 53 which are formed on the underside 22 of the platinum carrier 20. Accordingly, the lines 43 and the associated cables in the assembled state according to Fig. 10 covered. In the channels 53, the cables or lines 43 may be routed, for example, to the position of the respective holding device 4.

The cover 40 is preferably made of a plastic. Also, the cap 51 is preferably made of the same plastic as the cover 40.

The respective board 18 may be glued or clipped to the top 21 of the board carrier 20. The board 18 may in particular be designed so that sets a particularly intense heat transfer from the LEDs 19 to the platinum carrier 20.

While in the embodiments of Fig. 2 and 3 the holding device 4 allows a movable or pivotable mounting of the lamp 3 to the lamp 1, shows Fig. 16 another embodiment which allows in particular a rigid arrangement of the lamp 3 to the lamp 1. Shown here are of the lamp 3, only the board carrier 20 with attached board 18 and the rest of the lamp 1, only the lamp housing. 2

In order to fix the board 18 to the board carrier 20, an adhesive bond between the board 18 and the top 21 of the board carrier 20 may be provided. Likewise, the board 18 can be screwed to the board carrier 20 or clipped it. Particularly advantageous is the in Fig. 16 shown embodiment, in which the platinum carrier 20 has on its upper side 21 of the side of the board 18 at least one holding web 56 as an integral part that deformed to set the board 18 on the board carrier 20, in particular rolled or rolled in, such that the respective Haltesteg 56, the board 18 overlaps laterally. Shown here is in Fig. 16 a deformed final state of the respective holding web, in which the respective holding web is denoted by 56 and in which the respective holding web 56 engages over the board 18 laterally and fixed to the platinum carrier 20. Furthermore, in Fig. 16 also shown an undeformed initial state of the respective holding web, in which the respective holding web with 56 ' is designated and in which the respective holding web 56 'forms only a lateral boundary for the board 18, which simplifies positioning of the board 18 on the board carrier 20. With deformation forces that act according to arrows 57, the respective holding web can be converted by plastic deformation of the initial state (holding web 56 ') in the final state (holding web 56). The board 18 is thereby fixed in a form-fitting manner and without separate fastening means on the platinum carrier 20. In addition, the board 18 can be particularly biased set against the board carrier 20, which improves the heat transfer from the board 18 to the board carrier 20. Suitably, at least one such bent retaining web 56 is provided on each longitudinal side of the board 18. If only a single retaining web 56 is provided on the respective longitudinal side, this can extend over a substantial longitudinal section, preferably over the entire length, of the printed circuit board 18. If a plurality of holding webs 56 are provided on the respective longitudinal side, these are expediently distributed uniformly along the longitudinal side and arranged at a distance from one another.

At the in Fig. 16 In the embodiment shown, the platinum carrier 20 may also have an engagement contour 58 for a latching hook 59 on its underside 22 remote from the printed circuit board 18 on both longitudinal sides. Such a latching hook 59 may be formed, for example, on the lamp 1, here on the lamp housing 2. The two engagement contours 58 form here the carrier-side fastening means 42 or at least parts thereof, since in the example also the screw channel 48 is provided. The engagement contours 58 and the latching hooks 59 define a latching connection 60 or clip connection 60, which enables simple mounting of the lamp 3 on the luminaire 1. The latching connection 60 or the clip connection 60 in this case defines the holding device 4. The respective engagement contour 58 may be formed by a groove-like depression on the respective longitudinal side of the platinum carrier 20, which extends in the longitudinal direction of the board carrier 20 extends. In the example, the two latching hooks 59 are formed by double-angled end portions of the lamp housing 2, whereby they are integrally formed on the lamp housing 2. It is clear that several catch hooks 59 per longitudinal side can be used.

Claims (11)

1. Lamp for a light (1) for wall and/or ceiling mounting,

   - with at least one circuit board (18) that carries several LEDs (19),

   - with a circuit board support (20) that is configured as a straight profile, that carries the respective circuit board (18) on an upper side (21) and that has, on a lower side (22), support-side attachment means (42) for attachment of the lamp (3) on or in the respective light (1) as well as electrical connection means (11) for electrically contacting the lamp (3) with a power supply (7) of the respective light (1),

   - with a cover (40) that is configured as a straight profile, that allows through light of the LEDs (19), that is attached to the circuit board support (20) and that delimits at the upper side (21) of the circuit board support (20) a cavity (41) in which is arranged the respective circuit board (18) with the LEDs (19),

   characterized in that

   - the electrical connection means (11) have at least two lamp-side electrical contacts (55) that are electrically connected via at least two conductors (43) with circuit board-side electrical contacts (49), that, for their part, are electrically connected via conductive tracks (50) of the respective circuit board (18) with the LEDs (19),

   - that at least one end cap (51) is pushed on a longitudinal end of the circuit board carrier (20) and the cover (40),

   - that at least one such end cap (51) has cap-side electrical contacts (52) that, when pushed on, electrically contact the circuit board-side electrical contacts (49) and that are electrically connected with the electrical conductors (43),

   - that at least one plug part (13) is attached by the support-side attachment means (42) to the circuit board support (20) and that, when mounting the lamp (3) on a light housing (2) of a light (1), is insertable into a socket part (12) fixed to the light housing (2) so as to make a mechanical and electrical contact
2. Lamp according to claim 1,
   characterised in that
   the circuit board support (20) is a metal profile, in particular a light-metal profile, preferably an aluminium profile.
3. Lamp according to claim 1 or 2,
   characterized in that
   the cover (40) has a C-shaped cross-sectional profile, the profile opening (44) of which is closed by the circuit board (20).
4. Lamp according to one of claims 1 to 3,
   characterized in that
   the cover (40) is directly fixed to the circuit board support (20), preferably clipped to it.
5. Lamp according to one of claims 1 to 4,
   characterized in that
   the support-side attachment means (42) have at least one screw channel (48) into which is screwable at least one screw to fix the lamp (3) on or in the light (1), and/or at least one insertion contour (58) in which at least one latch hook (59) can engage to fix the lamp (3) on the light (1).
6. Lamp at least according to one of the claims 1 to 5,
   characterized in that
   the electrical conductors (43) are formed by means of electrical cables that, at least partially, are laid in at least one channel (53) formed on the lower side (22) of the circuit board support (20).
7. Light

   - with a light housing (2) for wall or ceiling mounting,

   - with at least one lamp (3) according to one of the claims 1 to 6, that is attached in or on the light housing (2),

   - with at least one power electronics (7) for supplying power to the at least one lamp (3) and arranged on or in the light housing (2) outside the respective lamp (3) and electrically connected with housing-side electrical primary connections (9), via which the light (1) is electrically connectable to a power network.
8. Light according to claim 7,
   characterized by at least one holding device (4) for attaching the respective lamp (3) to the light housing (2) and arranged between the two longitudinal ends (5) of the respective lamp (3).
9. Light according to claim 8,
   characterized in that
   at least one said holding device (4) has housing-side electrical secondary connections (10) that are electrically connected with the electrical connection means (11) of at least one said lamp (3) and that are electrically connected with at least one said power electronics (7).
10. Light according to claim 9,
    characterized in that
    the socket part (12) and the plug part (13) define an electrical plug connection that, in its inserted state, connects socket-side contacts (14) electrically connected with the respective power electronics (7) with plug-side contacts (15) electrically connected with the secondary connections (10).
11. Light according to one of the claims 7 to 10,
    characterized in that
    at least one said holding device (4) is configured to adjust a rotational position between at least one said lamp (3) and the light housing (2) about an axis of rotation (24) running parallel to the longitudinal direction (6) of the lamp (3) and outside the lamp (3).

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