DE202013103421U1 - Bulb module and luminaire with several bulbs modules - Google Patents

Abstract

Bulb module (50) for detachable arrangement on a carrier element (110) of a luminaire (100), wherein the luminous module (50) has one or more snap connection elements (10), each having a latching region (15), which is for latching is formed with the carrier element (110) of the luminaire (100).

Description

The present invention relates to a light-emitting module, which is adapted to be interchangeable attached to a support member of a lamp. Furthermore, the present invention relates to a lamp with at least one corresponding replaceable lamp module.

LEDs have prevailed in the past not only in special applications but in all fields of lighting technology because of advances in the development of such light sources in the past. In particular, LEDs can be used in the meantime readily for general lighting and have replaced in this regard classical light sources such as fluorescent lamps or light bulbs. Advantages of LED-based light sources lie in a better controllability of such light sources and the usually significantly longer life. These advantages compensate for the currently still existing disadvantage of higher production costs.

Despite all this, a change in the light sources may also be required in luminaires in which LEDs are used as light sources due to a defect or other signs of aging. A change of a corresponding lamp module would also be useful if, for example, light sources are to be replaced in terms of their color to adjust the appearance or Lichtabstrahlcharakteristik the lamp.

In this case, however, there is the problem that LEDs in contrast to fluorescent lamps or light bulbs can not be easily inserted into appropriate versions and removed again but the change of LED boards is usually associated with a greater effort. This is also due to the fact that within lights usually the LED light sources must be arranged in a special protected manner. One reason for this is that the LEDs should be protected against so-called ESD damage, ie damage due to electrostatic discharge. Furthermore, it has been found that an efficient LED operation can be achieved, especially at voltages in the high-voltage range, ie at about 220V. Accordingly, there are voltages on the LED boards in these cases, which can lead to an electric shock in case of accidental contact, which may well be harmful to health. The change of LED light sources in such lights was therefore previously mainly feasible only by appropriate personnel.

The present invention is accordingly based on the object to provide a novel solution that allows a simple and reliable fastening of a lamp module to a support element of a lamp. In particular, the solution should open the possibility to be able to replace appropriate lighting modules easily and quickly when needed.

The object is achieved by a lamp module with the features of claim 1. Advantageous developments of the invention are the subject of the dependent claims.

According to the invention it is provided that one or more specially designed so-called snap connection elements are provided on the lamp module. These snap connection elements are designed such that they allow a releasable attachment to the support element of the lamp, wherein the connection to the support element in particular without tools, so for example by simple locking takes place. For this purpose, the snap connection elements according to the invention each have a correspondingly formed latching area, which cooperates with a corresponding latching opening in the carrier element of the luminaire.

According to the present invention, therefore, a light-emitting module is proposed for releasable arrangement on a support element of a lamp, wherein the light-emitting module has one or more snap-on connection elements, which each have a latching area, which is designed for latching with the carrier element of the lamp.

The solution according to the invention thus makes it possible to fasten illuminant modules very simply and quickly, in particular without tools, to a carrier element of a luminaire. Even a later change of a module, for example, because this is defective or the Lichtabstrahlcharakteristik the lamp is to be changed, is easy to perform.

The snap connection elements according to the invention are in this case preferably designed such that they can also be connected without tools to the lamp module to be fastened, in particular can be latched with this. For this purpose, the snap connection elements preferably have a second latching region opposite the first latching region. In contrast to the first latching region, which is provided for connection to the carrier element of the luminaire, however, this second latching region is preferably designed in such a way that the connection to the luminous means module can no longer be readily released. The two resting areas Thus, they are preferably configured differently, so that it is ensured that the snap connection element remains permanently on the lamp module.

A particularly preferred embodiment is obtained when the snap connection element is attached to a circuit board of the lamp module and the board is to be coupled simultaneously with a flat heat sink. Such a structure is particularly necessary if over the surface of the board alone, the heat occurring during operation of the lamps, so in particular the LEDs heat can not be sufficiently dissipated. In this case, a sandwich structure is then usually used, in which a heat sink, that is to say, for example, a metal plate or the like corresponding in terms of its dimensions of the LED board, is arranged flat on the rear side of the board. So far, it has been customary in this case to couple the circuit board and heat sink by means of separate connection elements, in particular by means of screw connections.

According to a particularly preferred embodiment of the present invention, however, can be dispensed with such additional measures, since the snap connection elements at the same time a coupling between the heat sink and illuminant carrier, so LED board cause. In this case, the latching areas of the snap connection elements pass through both a corresponding recess in the heat sink and in the illuminant carrier and clamp both elements between the corresponding latching area and a planar contact area such that a reliable connection and thus thermal coupling between the two elements is achieved. In this variant, therefore, the snap connection elements according to the invention fulfill an additional function, so that the number of components required on the one hand for mounting the lamp module and on the other hand for realizing the detachable connection to the support element of the lamp is reduced.

The snap connection elements according to the invention are preferably plastic parts, which are produced in particular by injection molding.

The invention will be explained in more detail with reference to the accompanying drawings. Show it:

1 a perspective view of a lamp in which a plurality of lamp modules are to be releasably secured by means of the inventive solution;

2 a view of a lamp to be fastened on the lamp module;

3 the view of a snap connection element according to the invention and

4 a sectional view of a fastened by means of the snap connection elements according to the invention on the support element of the luminaire lamp module.

1 shows in perspective view a generally with the reference numeral 100 provided luminaire, in which the solution according to the invention is to be used. The realization of the releasable holder according to the invention with the help of the snap connection elements described in more detail below is not limited to the corresponding illustrated special light, but can always be used when lighting modules - especially with LED-based light sources - releasably attached to a support element Luminaire to be attached. At the in 1 illustrated light 100 it is an elongated light, which is designed in the case shown as a pendant light, so using two ropes 101 or rods to be attached to a carrier element, not shown suspended.

Central element of the luminaire according to the invention 100 is an elongate carrier element 110 which is formed by a corresponding aluminum profile body. This carrier element 110 serves to hold all essential components of the lamp 100 , In particular, the below described in more detail bulbs or LED modules, as well as appropriate operating devices for operating the LEDs. While the LED modules from the bottom to the support element 110 are to be fixed, in particular in a cross-sectionally approximately C-shaped, open towards the bottom receiving area, are - not shown - operating devices preferably at the rear or top of the support element 110 arranged. At the top of it carrier element 110 In addition, additional light sources (not shown here) can additionally be arranged, with the aid of which an indirect illumination can be realized.

2 shows a perspective view of an LED module 50 , as preferred in the luminaire according to 1 is used. The LED module 50 is designed approximately cuboid and is intended from the bottom to the support element 110 attached and fixed there. As can be seen, the LED module is 50 this dimensioned much shorter than the carrier element 110 , Although it preferably has about a comparable width, but extends in the longitudinal direction of the lamp 100 only over a fraction of the support element 110 time. At the light 100 from 1 for example, there are about ten or fourteen such LED modules 15 arranged one behind the other for use. Also in this regard, however, the invention is by no means limited to such a specific embodiment. For example, with the aid of the solution according to the invention, a single LED module, which is the only light source of a luminaire, could be exchangeably fastened to a corresponding carrier.

As already mentioned, the LED module 50 formed approximately cuboid. Its back or bottom surface 51 is formed here by a board and a flat heat sink, which is thermally coupled to the board and causes an improved dissipation of the heat occurring during operation. Alternatively, the LED board could be directly behind the back 51 of the module 50 form.

The LEDs are depending on how the light output of the module 50 should be done, matrix-like or otherwise distributed on the board 51 arranged. A preferably completely made of a transparent material, such as cup-shaped cover 60 forms here together with the board 51 a housing. In particular, enclose bottom surface 51 and cover 60 a cavity inside the module 50 in which on the one hand the LEDs are arranged and on the other hand also additional optical elements for influencing the light output can be arranged. For example, the arrangement of a lens arrangement or a grid would be conceivable. It is essential that the cover 60 at the same time provides protection for the LEDs located inside, as they are not readily from the bottom side 51 is solvable and accordingly accidental touching of the LEDs can be excluded in this way. At the back of the module 50 Furthermore, an unillustrated electrical contacting element can be provided, via which the power supply of the LEDs takes place. This must be with a corresponding counterpart of the luminaire 100 be coupled to ensure the power supply of the LEDs.

The desired releasable fastening of the lamp module 50 on the carrier element 110 is according to the invention by means of two snap connection elements 10 scored in 2 in one on the bulb module 50 attached state are shown. 3 on the other hand, shows in isolation an inventive snap connection element 10 ,

These are plastic parts, which are preferably produced inexpensively by injection molding. In the present case are at the back 51 of the lamp module 50 two snap-in connectors 10 intended. The number may vary depending on the size and weight of the module 50 also be varied. For example, it would also be conceivable in the four corner regions of the lamp module 50 each a snap connection element 10 to arrange, provided the module 50 has a higher weight. The number of snap fasteners actually used 10 is such that they are at least in their entirety, the five times the weight of the lamp module 50 to wear. This is necessary because according to a standard, the connecting means with the carrier element 110 the light 100 must be designed so that the holding force is five times the weight of a module to be held. With appropriate design or number of snap connection elements 10 So it can be ensured that this standard is met and no additional safeguards for holding the bulb modules 50 required are.

Like the view of 3 shows, know the snap connector 10 a central, centrally arranged bearing plate 11 on, in each case in the opposite direction two locking areas 15 and 20 extend. A first resting area 15 is here for the detachable connection with the carrier element 110 while, however, the opposing catch area 20 the connection of the snap connection element 10 on the bulb module 50 allows. This connection with the bulb module 50 should be permanent or such that after snapping the snap connection element 10 on the bulb module 50 the connection can not be solved without further ado. Accordingly, both latching areas 15 and 20 executed differently, which will be explained in more detail below.

The rest area 15 serves as already mentioned the releasable connection with the carrier element 110 , He should thus allow a relatively simple snapping and later releasing the locking. For this purpose, it has two mutually oppositely disposed latching arms 16 on which are formed angled and, accordingly, two each in an outer projection 19 interlocking inclined areas 17 and 18 exhibit. The areas 17 thereby form sloping contact surfaces, which snapping the snap connection element 10 and ultimately with the bulb module 50 on the carrier element 110 facilitate. When attaching from the bottom here engages the narrower upper end portion of the locking area 15 in a corresponding recess on the carrier element 110 a, due to the inclined surfaces 17 then both arms 16 be pressed slightly inwards until the outer protrusions 19 the poor 16 the recess in the carrier element 110 engage behind. At this point, both arms snap 16 back out and the latching with the support element 110 he follows.

In the same way ensure the sloping lower areas 18 the latch arms 16 that when pulling the arms 16 the rest area 15 be deflected back inwards and accordingly the latching with the carrier element 110 is solved. As already mentioned, the design of the latching areas 15 as well as the number of snap fasteners used 10 in such a way that the holding force realized in this way on the carrier element 110 at least five times the weight of the lamp module to be held 50 equivalent. In this case, then no additional measures to hold the bulb module 50 on the carrier element 110 required.

The opposite resting area 20 in turn serves to the snap connector 10 on the bulb module 50 to arrange. Also this rest area 20 has two latching arms 21 on, but now not designed for a detachable connection, but for a permanent locking with the bulb module 50 should provide. Accordingly, the latching arms 21 in contrast to the latching arms 16 not angled trained but straight and extend divergent each at an angle of about 30 ° from the narrower end to the side away. At the end are the arms 21 one graduation each 22 on, which cooperates with a corresponding edge of the LED board.

The orientation of the latching arms 21 in turn, allows these through a corresponding opening 52 or recess on the bottom side 51 of the lamp module 50 can be inserted and thereby pressed first to the inside, until the end portions of the arms 21 have passed the opening, such that the graduated areas 22 with the corresponding edges of the LED board 55 interact or the board in the gradation 22 intervenes. This arrangement may be the sectional view of 4 it can be seen that the arms 21 so far in the interior of the bulb module 50 were inserted that the graduated areas 22 at the edges of the board 55 issue. At the same time presses the plate-shaped investment area 11 from the opposite side against the floor surface 51 of the lamp module 50 so that the snap fasteners 10 on the bulb module 50 are fixed. As obviously from the back of the plate-shaped area 11 the corresponding recess 52 covers, there is no access to the corresponding rest area from this page 20 so that the latching connection between snap-in connector 10 and illuminant module 50 difficult or impossible to solve.

According to the presentation of 4 is provided that on the bottom side 51 of the lamp module 50 a sandwich structure consisting on the one hand of the board 55 with the - not shown - LEDs and one on the back of the board 55 arranged metal plate 60 is present. This metal plate 60 serves as a planar heat sink to dissipate heat generated during operation of the LEDs efficiently to the rear or on the support element 110 the light 10 transferred to. In this case, efficient thermal coupling between board 55 and heat sink 60 required, which with the help of the snap connection elements according to the invention 10 is possible. These are in fact dimensioned such that in the snapped state both elements - board 55 and heat sink 60 - Are pressed firmly together and accordingly the desired thermal coupling is present. The snap fasteners 10 So not only allow a releasable arrangement of the lamp module 50 on the carrier element 110 but also facilitate the construction and assembly of the lamp modules 50 because to connect between LED board 55 and heat sink 60 no further elements, in particular no screw or the like are required. Of course, the snap connection elements according to the invention 10 However, also be used when no such sandwich structure is present, but instead the LED board 55 immediately the floor area 51 of the lamp module 50 forms.

With the help of the solution according to the invention can thus be achieved in a very simple manner a releasable fastening of light-emitting modules to a support element of a lamp. The snap connection elements used for this purpose can be produced relatively simply and inexpensively and ideally also fulfill additional tasks with regard to the joining of the individual elements of the lamp module. It should be noted that the solution according to the invention is not limited to the illustrated lamp modules but can always be used there when a corresponding module or an LED board must be releasably secured to a support member of a lamp or to a lamp housing ,

Claims (12)

Bulb module ( 50 ) for detachable arrangement on a carrier element ( 110 ) of a luminaire ( 100 ), wherein the lighting module ( 50 ) one or more snap fasteners ( 10 ), each having a latching area ( 15 ) have, for latching with the carrier element ( 110 ) of the luminaire ( 100 ) is trained. Illuminant module according to claim 1, characterized in that the latching region ( 15 ) two oppositely arranged latching arms ( 16 ) having. Illuminant module according to claim 2, characterized in that each latching arm ( 16 ) is angled and in particular two mutually merging inclined sections ( 17 . 18 ) having. Illuminant module according to one of the preceding claims, characterized in that the snap connection element ( 10 ) a second latching area ( 20 ) which is adapted for latching to a floor area ( 51 ) of the lighting module ( 50 ) is trained. Illuminant module according to claim 4, characterized in that the second latching region ( 20 ) is designed differently than the first catch area ( 15 ). Illuminant module according to claim 5, characterized in that the second latching region ( 20 ) two substantially straight extending, divergent latching arms ( 21 ) having. Illuminant module according to one of claims 4 to 6, characterized in that the second latching region ( 20 ) a light source carrier ( 55 ) of the illuminant module ( 50 ), in particular an LED board engages behind. Illuminant module according to one of the preceding claims, characterized in that the snap connection element ( 10 ) a central contact surface ( 11 ) having. Illuminant module according to claim 7 and claim 8, characterized in that the floor area ( 51 ) of the illuminant module by the illuminant carrier ( 55 ) as well as a flat heat sink ( 60 ) is formed, wherein illuminant carrier ( 55 ) and heat sink ( 60 ) through the second latching area ( 20 ) are compressed. Illuminant module according to one of the preceding claims, characterized in that the snap connection element ( 10 ) is a plastic part and in particular injection molding is made. Lamp ( 100 ) with a carrier element ( 110 ) and at least one lighting module ( 50 ) according to one of the preceding claims. Luminaire according to claim 11, characterized in that on the support element ( 110 ) several lamp modules ( 50 ) are arranged one behind the other.

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