EP2833048A1 - Light with carrier element and replaceable light module - Google Patents

Abstract

In a luminaire (100) having a carrier element (110) and at least one light-emitting module (50) which can be fastened detachably to the carrier element (110), the luminaire (100) has at least one locking element (10) which is disposed between a locking position in which a release of the lamp module (50) is prevented by the carrier element (110), and a release adjustment, in which a release of the lamp module (50) is made possible, is movable.

Description

The present invention relates to a luminaire according to the preamble of claim 1, which has a carrier element and at least one releasably fastenable to the carrier element lamp module. The lamp module may in particular be a module which includes LED-based light sources.

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, voltages are present at the LED boards in these cases, which can lead to an electric shock in case of accidental contact, the can be harmful to your health. The change of LED light sources in such lights was therefore previously mainly feasible only by appropriate personnel.

Accordingly, the present invention is based on the object of specifying a novel possibility of being able to fasten illuminant modules in a simple manner replaceable on a carrier element of a luminaire. In particular, a simple change of a lamp module is to be made possible, in spite of everything is ensured that the appropriate provisions regarding the protection of the module to the support element or to the luminaire are met.

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

The solution according to the invention is based on the idea of providing at least one so-called locking element on the luminaire which can be moved back and forth between a locking position and a release position. In the locking position, the locking element thereby prevents the lamp module from being detached from the carrier element while, in contrast, the lighting module can be removed or removed in the release position. Preferably, it is a centrally-used locking element, which thus interacts with a plurality, in particular with all lighting modules of the lamp.

According to the invention, a lamp with a support element and at least one releasably fastened to the support element lamp module is accordingly proposed, wherein the lamp further comprises at least one locking element which between a locking position, in which a release of the lamp module is prevented by the support element, and a release position, in which a release of the lamp module is made possible, is movable.

Preferably, the luminaire is designed such that after transferring the locking element into the release position, the or the lamp modules can not easily fall off the support element. Instead, it is provided that even in this release position, the lamp module is still locked to the support element or preferably the locking element itself, wherein However, this latch can now be solved in the release position of the locking element without much effort. In the locking position, however, the lamp modules are locked to the support member so that they can not be removed even with great effort. This locking position ensures in particular that the lamp module is held with a force that corresponds to at least five times the weight of the lamp module, so that accordingly the above-mentioned standards are clearly fulfilled. Furthermore, it can preferably be provided that the locking element is secured in the locked position, so this position can not leave independently.

The detachable latching of the lamp module, in particular with the carrier element, is preferably made possible by the fact that the lamp module has side walls which are provided with corresponding latching elements. The locking in the locking position, however, is preferably made possible by the fact that corresponding openings or recesses are provided on the side walls of a lamp module, in which projections of the locking element engage in its locking position. These recesses and latching elements may be a common component of a latching / locking region of the lighting module. A particularly simple embodiment of the locking element provides in this case that this is movable by moving between the two positions, wherein in the locking position corresponding projections fully engage in the openings on the side walls of the lamp module and lock it with it. In the release position, however, the projections of the locking element only cooperate with the corresponding locking elements of the lamp module. This can then be removed with correspondingly little effort from the lamp.

Preferably, several, in particular two locking elements are provided. These are then configured and arranged such that they cooperate in each case with mutually opposite side walls of the lamp modules. Of course, the use of the locking element according to the invention in particular has a positive effect when a plurality of light-emitting diode modules is arranged on the lamp. In particular, it can be provided to arrange a plurality of similar lighting modules in the longitudinal direction of the luminaire one behind the other.

A light-emitting module of the luminaire according to the invention preferably has a plurality of LEDs as light sources. It can be provided in particular that the Bulb module is formed like a cuboid and a bottom surface of the module is formed by an LED board or a planar heat sink coupled to the board. The bottom surface can then together with a corresponding cover, preferably a transparent cover, form a closed housing in which the LEDs are arranged protected. The space formed in the housing can also be used for the arrangement of optical elements such as lenses, grid or similar elements beyond.

Figur 1

eine erfindungsgemäße Leuchte in perspektivischer Ansicht mit einem Leuchtmittel-Modul, welches an der Leuchte lösbar befestigt angeordnet werden soll;

Figur 2

die Ausgestaltung des Leuchtmittel-Moduls im Hinblick auf die mit dem Verriegelungselement zusammenwirkenden Komponenten;

Figur 3

eine vergrößerte Ansicht des Leuchtmittel-Moduls von Figur 2;

Figuren 4a und 4b

Schnittdarstellungen der Leuchte mit dem erfindungsgemäßen Verriegelungselement in Verriegelungsstellung bzw. in Freigabestellung und

Figuren 5a und 5b

perspektivische Ansichten der Leuchte mit dem Verriegelungselement wiederum in der Verriegelungsstellung und in der Freigabestellung.

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

FIG. 1

a luminaire according to the invention in a perspective view with a light-emitting module, which is to be arranged releasably secured to the lamp;

FIG. 2

the embodiment of the lamp module with respect to the cooperating with the locking element components;

FIG. 3

an enlarged view of the bulb module of FIG. 2 ;

FIGS. 4a and 4b

Sectional views of the lamp with the locking element according to the invention in the locked position or in the release position and

FIGS. 5a and 5b

perspective views of the lamp with the locking element turn in the locked position and in the release position.

FIG. 1 shows in perspective view a generally provided with the reference numeral 100 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 locking 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 - detachable on a support element of a Luminaire to be attached. At the in FIG. 1 illustrated lamp 100 is an elongated lamp, which in the case shown as Pendant lamp is executed, so with the help of two ropes 101 or rods to be mounted suspended from a support element, not shown.

The central element of the luminaire 100 according to the invention is an elongated support element 110, which is formed by a corresponding aluminum profile body. This carrier element 110 serves to hold all the essential components of the luminaire 100, in particular the illuminant or LED modules described in more detail below, as well as corresponding operating devices for operating the LEDs. While the LED modules are to be fastened to the carrier element 110 from the underside, in particular in a receiving area which is approximately C-shaped in cross-section and open toward the underside, the operating devices (not shown) are preferably at the rear or top side of the carrier element 110 arranged. On the upper side of the carrier element 110, additional light sources (not shown in greater detail) can additionally be arranged, with the aid of which an indirect illumination can be realized.

FIG. 1 also shows in perspective view an LED module 50, as preferred in the lamp according to FIG. 1 is used. The LED module 50 is configured roughly parallelepiped-shaped and is intended to be attached to the carrier element 110 from below and fastened there. As can be seen, the LED module 50 in this case is significantly shorter than the carrier element 110. Although it preferably has about a comparable width, however, extends in the longitudinal direction of the lamp 100 only over a fraction of the support member 110 away. With the light 100 of FIG. 1 For example, about ten or fourteen such LED modules 15 are arranged one behind the other are used. 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 is approximately cuboid. Whose rear or bottom surface 51 is in this case formed by a board and a coupled to the board surface 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 directly form the back 51 of the module 50.

Depending on the manner in which the light output of the module 50 is to take place, the LEDs are arranged in a matrix-like or otherwise distributed manner on the circuit board 51. A preferably completely made of a transparent material, such as cup-shaped cover 52 forms here together with the board 51, a housing. In particular, the bottom surface 51 and the cover 52 enclose a cavity in the interior of the module 50, in which the LEDs are arranged on the one hand 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 52 at the same time provides protection for the LEDs arranged in the interior, since it is not readily detachable from the bottom side 51 and accordingly accidental touching of the LEDs can be precluded in this way. On the back of the module 50 may further be provided, not shown, electrical contacting element, via which the power supply of the LEDs takes place. This must be coupled with a corresponding counterpart of the lamp 100 to ensure the power supply of the LEDs.

To realize the solution according to the invention, a special embodiment of the light-emitting module 50 is initially provided, which is described below with reference to FIGS FIGS. 2 and 3 will be explained in more detail.

As can be seen in this case, the two side walls 55 arranged on the longitudinal sides of the module 50 or the cover 52 have raised areas, ie areas which protrude in comparison to the bottom surface 51 of the lighting module 50 (see FIG Fig. 1 ) and in each of which special latching / locking areas 56 are formed. A single latch / latch portion 56 is shown enlarged in FIG FIG. 3 shown and initially has an elongated recess 57 which is formed just below the upper edge of the corresponding side wall 55. This recess 57 is bounded on both sides and on its underside completely by the corresponding side wall 55 of the lamp module 50, on the other hand, only a narrow web 59 is formed, which is thinner than the side wall 55. At this web 59 is also over a limited portion, a locking projection 58 is provided, which is approximately triangular in cross section. The thickness of the web 59 and the locking projection 58 are dimensioned such that they together correspond substantially to the thickness of the side wall 55. As already mentioned, two such latching / locking areas 56 are respectively formed on the two mutually opposite side walls 55 of the illuminant module 50.

With the help of these special locking / locking areas 56 can now be a special interaction with the central Locking elements are realized, as shown in the FIGS. 4 and 5 is shown. The FIGS. 4a and 5a each show a sectional view or a perspective section of the lamp 100 with the locking element 10 in the locked position. The FIGS. 4b and 5b show comparable views of the lamp 100, but now the locking element 10 is in the release position.

Strictly speaking, two locking elements 10 are provided, which are arranged symmetrically to both sides of a central axis of the lamp 100. As in particular the perspective views of FIGS. 5a and 5b can be removed, the locking elements 10 are formed by elongated plate-shaped parts-preferably made of metal-which have at their outer longitudinal sides at regular intervals arranged comb-like projections 11. The locking elements 10 are in this case arranged resting on the back or top of the support member 110 and can be moved according to the arrow in a plane laterally between two end positions.

A first end position is in the FIGS. 4a and 5a shown, in which case the locking elements 10 have been moved laterally outward. In this position, the locking position, engage the comb-like projections 11 as shown completely in the recesses 57 of the locking / locking portions 56 of the lamp module 50 a. Obviously, this means that the lamp module 50 is locked to the carrier element 110 of the lamp 100 and can not be removed even with great effort. In this locking position, therefore, the illuminant module 50 is held clearly with a force on the lamp 100, which corresponds to at least five times the weight of the lamp module 50. As a result, the luminous means module 50 is sufficiently secured to the luminaire 100 and no additional measures for holding the luminous means module 50 are required.

In order to further prevent inadvertent release of the lock, it is provided that the locking elements 10 are respectively locked by corresponding screws 15 or pins in the illustrated locking position. This is made possible by corresponding openings or bores 12 and 112 in the locking element 10 and in the profile element 110, wherein these holes 12 and 112 in the locking position of the locking elements 10 are aligned with each other, so that the insertion of the illustrated screws 15 or other locking pins is made possible ,

The locking elements 10 according to the invention in this case preferably extend over the entire length of the lamp 50 and can be locked in particular at the opposite end regions by means of corresponding screws 15 or securing pins. In this position, the two locking elements 10 cooperate with all in the longitudinal direction of the support member 110 arranged behind one another lamp modules 50 and there are no further security measures for holding the lamp modules 50 is required.

If, on the other hand, at least one of the lamp modules 50 is to be replaced, the locking of the locking elements 10 must first be released by removing the screws 15. Subsequently, the locking elements 10 can easily inward in the in the FIGS. 4b and 5b shown position to be moved. As can be seen, now the comb-like projections 11 have moved inwards, such that they no longer completely engage in the recesses 57 of the latching / locking portions 56 of the module 50. Instead, the range of motion, which is defined by the corresponding inner stop 113 of the support member 110, dimensioned such that in the release position only the outermost end portion of the projections 11 cooperates with the locking element 58 of the module 50. That is, after transferring the locking elements 10 in the release position, the lamp modules 50 are not completely solved by the support member 110 of the lamp 100 but remain locked with the locking elements 10 as before. However, the latching elements 58 and the projections 11 are dimensioned such that this latching can be relatively easily, in particular solved with only a small amount of force. In this way it is prevented that after transferring the locking elements 10 in the release position, the lamp modules 50 fall down by itself. However, they can then be solved and removed very easily and quickly in this position.

In the same way, the mounting of the lamp modules 50 takes place. These are attached to the carrier element 110 from the underside, in which case they latch with the locking elements 10 and thus are already held for the time being. After all lamp modules 50 have been arranged on the carrier element 110, the locking elements 10 are displaced outwards into the locking position and locked there, which simultaneously has the consequence that now also the lamp modules 50 are securely held.

With the aid of the solution according to the invention, therefore, a very simple but nevertheless extremely reliable fastening of the lamp modules to the carrier element of the luminaire is made possible. In particular, only a few steps are required to lock the modules 50 finally and safely to the light. This also makes it possible for the end user to exchange individual light-emitting modules in a simple manner, if this is necessary or desired.

It should be noted that, as an alternative to the illustrated embodiment, it would also be conceivable that the preliminary latching of the lighting module takes place directly with the carrier element or with another element of the luminaire. In this case, the locking elements then serve exclusively to either release the lamp modules or finally lock on the lamp. However, the variant shown is to be preferred, since the locking elements fulfill several functions simultaneously and accordingly the entire latching locking mechanism is realized by a few and easily manufactured components.

Claims (13)

Luminaire (100) with a carrier element (110) and at least one light-emitting module (50) which can be detachably fastened to the carrier element (110),
characterized,
in that the luminaire (100) has at least one locking element (10) which is prevented between a locking position in which a release of the luminous means module (50) from the carrier element (110) is prevented, and a release adjustment in which the illuminant is released. Module (50) is possible to move. Luminaire according to claim 1,
characterized,
that the light source module (50) is detachably locked in the release position of the locking element (10) to the carrier element (110) or the locking element (10). Luminaire according to claim 2,
characterized,
in that the lighting module (50) has side walls (55) which have latching / locking areas (56) which interact with the carrier element (110) and / or the locking element (10). Luminaire according to claim 3,
characterized,
that the latching / locking portions (56) each comprise a latching element (58). Luminaire according to claim 3 or 4,
characterized,
in that the latching / locking areas (56) have openings or recesses (57) into which projections (11) of the locking element (10) engage in its locking position. Luminaire according to one of the preceding claims,
characterized,
in that the locking element (10) can be moved by a displacement between the locking position and the release position. Luminaire according to one of the preceding claims,
characterized,
in that a plurality of, preferably two, locking elements (10) are provided which cooperate with mutually opposite side walls (55) of the lighting module (50). Luminaire according to one of the preceding claims,
characterized,
that this has a plurality of lamp modules (50) which are arranged one behind the other in the longitudinal direction. Luminaire according to one of the preceding claims,
characterized,
that the light source module (50) comprises LEDs. Luminaire according to claim 8,
characterized,
in that the illuminant module (50) is of cuboid design and a bottom surface (51) of the module is formed by an LED circuit board (52) or a planar heat sink coupled to the circuit board (52). Luminaire according to claim 10,
characterized,
that the bottom surface (51) of lamp module (50) together with a transparent cover (52) forms a closed housing, in which the LEDs are arranged. Luminaire according to claim 11,
characterized,
in that additional optical elements for influencing the light output are arranged in the housing of the lighting module (50). Luminaire according to claim 12,
characterized,
that the optical elements are lenses or raster elements.

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