EP4040038A1 - Light with protected lighting components - Google Patents

Abstract

An arrangement has a lamp (1) comprising at least one receiving space (A) for lamp components, with a housing wall (20d) of the lamp (1) adjoining the receiving space (A) having an opening (5), and an external supplementary module (200 ) on, having a space (C) for accommodating electronic components, wherein the supplementary module (200) on the outside of the lamp (1) can be fastened, such that in the fastened state the space (C) for accommodating electronic components via the Opening (5) is coupled to the receiving space (A) of the lamp (1).

Description

The present invention relates to a lamp that has electrical or electronic lamp components that are to be efficiently protected against external influences, such as dust or moisture. In particular, the invention relates to a so-called high-bay lamp.

Highbay lights are lights that are used, for example, to illuminate larger halls or industrial complexes. In this application, the lamps are usually arranged at a relatively large distance from the floor, which is why there is a requirement that the lamp generates light with high intensity, which is then radiated onto the area below, for example a hall. Accordingly, relatively powerful lamps are used in such lights, which then have to be stored in a suitable manner, whereby care must be taken that on the one hand the heat generated during operation of the lamps is dissipated in a suitable manner and on the other hand the lamps are protected from external influences, in particular are protected from moisture and/or dust.

A lamp of the type described above is, for example, from WO 2014/086770 A1 known to the applicant. The lamp described here is essentially formed by an aluminum die-cast body, which has large-area cooling rib structures and cooling channels for dissipating the high heat generated during operation of the lamp. Equipment is positioned centrally between two elongated LED arrays, with the design of the die-cast body being such that air can also flow around a centrally located housing in which the equipment is accommodated, in order to enable sufficient heat dissipation. By using appropriate cooling air openings, a thermal decoupling between the housing for the equipment and the areas of the lamp body in which the lamps are arranged is also largely achieved.

A further development of this lamp is in the WO 2020/228996 A1 described. In this case, a trough-shaped lamp housing is used, which is formed by a one-piece sheet metal part, the housing base areas for Recording of lighting components, such as the LED bulbs has. With the help of a corresponding cover, which is attached to the housing, the receiving areas are closed on all sides in order to efficiently protect the corresponding components from external influences. In this case, too, the design of the lamp housing and the cover is such that cooling air flows around those areas of the lamp that are subject to high thermal loads in order to be able to efficiently dissipate the heat generated during operation.

These lights, which are known from the state of the art, have proven themselves many times over and are characterized by their excellent light output and, at the same time, high operational reliability. Despite the various measures, however, there are certain limits with regard to the possibility of arranging heat-generating or heat-sensitive components within the luminaire housing. On the one hand, the various receiving areas are limited in terms of their dimensions, so that, for example, numerous other components cannot be arranged in the corresponding area in addition to the operating device for the lamps. On the other hand, adding additional luminaire components would further increase the risk of thermal damage to individual components.

The present invention is therefore based on the object of specifying a possibility, if necessary, of being able to add additional components to a lamp of the type described above, which support the operation of the lamp, the risk of excessive thermal stress being avoided despite everything.

The object is achieved by an arrangement with the features of claim 1. Advantageous developments of the invention are the subject matter of the dependent claims.

The solution according to the invention is based on the idea of providing a supplementary module which, if necessary, can be attached to an outside of the lamp and can be used to accommodate additional electronic components. These are in particular components that support the operation of the lamp and, for example, supplement its functionality. In particular, these may be components that may themselves generate heat during operation of the lamp. On the other hand, it could also be are components that should be protected as well as possible from the heat, in particular from the lamps, during the operation of the lamp. As already mentioned, this possibility is made available by the fact that such additional components are outsourced to the supplementary module, which can however be fastened to the outside of the lamp in such a way that when fastened there is a coupling between a receiving area of the lamp and a receiving area of the supplementary module.

• eine Leuchte umfassend einen Aufnahmebereich für Leuchtenkomponenten, wobei eine an den Aufnahmebereich angrenzende Gehäusewand der Leuchte eine Öffnung aufweist, und
• ein externes Ergänzungsmodul, aufweisend einen Bereich zur Aufnahme von elektronischen Komponenten,

wobei das Ergänzungsmodul an der Außenseite der Leuchte befestigbar ist, derart, dass im befestigten Zustand der Bereich zur Aufnahme von elektronischen Komponenten des Ergänzungsmoduls über die Öffnung mit dem Aufnahmebereich der Leuchte gekoppelt ist.According to the present invention, an arrangement is therefore proposed which has:

• a lamp comprising a receiving area for lamp components, wherein a housing wall of the lamp adjoining the receiving area has an opening, and
• an external supplementary module, having an area for accommodating electronic components,

wherein the supplementary module can be fastened to the outside of the lamp in such a way that, in the fastened state, the area for accommodating electronic components of the supplementary module is coupled to the receiving region of the lamp via the opening.

The space for accommodating lighting components can thus be expanded by the supplementary module according to the invention. This opens up the possibility of using additional components for the operation of the luminaire. The supplementary module according to the invention ensures that these additionally used components are positioned in such a way that the components located in the lamp housing or the supplementary module are prevented from being adversely affected by excessive thermal stress. At the same time, however, the connection between the lamp housing and the housing of the supplementary module to be mounted is designed in such a way that there is a coupling between the receiving areas, so that the components located in the various housings can be easily connected to one another, in particular electrically connected to one another.

According to a particularly preferred embodiment, it can be provided that when the supplementary module is attached to the light, the area for receiving electronic components is sealed via the opening with the receiving area of the light, in particular sealed against dust and/or splash water. By the inventive The supplementary module should therefore not have a negative impact on the protected accommodation of the components within the luminaire.

It is preferably provided here that the housing of the supplementary module has a channel-like connecting element for coupling the area for accommodating electronic components to the accommodating area of the lamp. This can in particular be a connecting element which has an essentially tubular shape and preferably extends in one piece from an outer wall of the housing of the supplementary module. For coupling to the lamp housing it is then provided that the connecting element in the coupled state engages in the opening of the housing wall of the receiving area of the lamp, a sealing element or other suitable sealing means preferably being arranged on the outer circumference of the connecting element.

The housing of the supplementary module according to the invention is preferably formed from a trough-shaped housing part, which has a housing base and a housing wall that runs laterally around the housing base, and from a housing cover that closes this trough-shaped housing and has a cover wall that runs laterally parallel to the housing wall, the housing cover preferably being detachably connected to the housing part can be connected. In particular, it can be provided that the housing part and the housing cover are designed such that they can be latched to one another.

The housing wall running laterally around the housing base, preferably together with the housing base, forms the area for accommodating the additional electronic components. In this case, the housing base on the side facing the receiving area can in particular have shoulders for fastening the electronic components, which are particularly preferably formed integrally with the housing part. In turn, openings can be provided on the housing wall, into which latching projections, which are formed on the housing cover wall, engage for latching the housing cover to the trough-shaped housing.

The components arranged in the add-on housing should also be protected as efficiently as possible from external influences. For this purpose, it is preferably provided that parallel to the housing wall laterally encircling the housing base, on the side facing the housing base, a completely circumferential channel for receiving a seal is formed, in which the cover wall in the connected state penetrates in such a way that the recording area is protected against dust and splash water. The receiving areas of the housing of the lamp and of the supplementary module, which are coupled to one another according to the invention, are therefore completely enclosed overall in order to be able to ensure reliable protection of the various components.

For attachment to the lamp, the external supplementary module can preferably have at least one fastening projection, which is preferably fastened to the housing wall of the supplementary module with diagonal struts, each fastening projection being connectable to the lamp housing via at least one screw connection. This enables the supplementary module to be reliably attached to the light, so that a permanently stable connection is ensured.

The housing of the external supplementary module is preferably made of plastic. This opens up the possibility of arranging protected components within this supplementary module that ideally should not be surrounded by metal to ensure reliable operation. In this case, one would think in particular of components that are designed for wireless communication and whose signals should not be shielded by an enclosing metal wall.

Ultimately, the inventive idea of using a supplementary module opens up the possibility of using additional components to operate a lamp, with reliable and protected accommodation of the components being ensured despite everything and the risk of excessive thermal stress being avoided.

Figuren 1 und 2

Ansichten einer Anordnung bestehend aus einer Leuchte sowie einem erfindungsgemäß damit gekoppelten Ergänzungsmodul;

Figuren 3 und 4

Ansichten des Leuchtengehäuses der erfindungsgemäßen Anordnung;

Figur 5

einen Teilschnitt durch das Leuchtengehäuse;

Figur 6

einen weiteren Teilschnitt zur Verdeutlichung der geschützten Anordnung der Komponenten innerhalb des Leuchtengehäuses;

Figuren 7 und 8

Ansichten des Ergänzungsmoduls;

Figuren 9 und 10

Darstellungen des Gehäuseteils des erfindungsgemäßen Ergänzungsmoduls;

Figur 11

eine Schnittdarstellung des Gehäuseteils des erfindungsgemäßen Ergänzungsmoduls und

Figuren 12 und 13

Ansichten des zugehörigen Gehäusedeckels.

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

Figures 1 and 2

Views of an arrangement consisting of a lamp and a supplementary module coupled thereto according to the invention;

Figures 3 and 4

Views of the lamp housing of the arrangement according to the invention;

figure 5

a partial section through the lamp housing;

figure 6

another partial section to illustrate the protected arrangement of the components within the lamp housing;

Figures 7 and 8

Views of the supplementary module;

Figures 9 and 10

Representations of the housing part of the supplementary module according to the invention;

figure 11

a sectional view of the housing part of the supplementary module according to the invention and

Figures 12 and 13

Views of the associated housing cover.

As already mentioned, the arrangement according to the invention, explained in more detail below, consisting of the lamp provided with the reference number 1 in the figures and a supplementary module 200, is to be used in particular to implement a so-called high-bay lamp, i.e. a compact but powerful lamp that is used, for example, for suitable as a hall light. As with the luminaires described in the applicant's earlier applications mentioned above, the arrangement shown here is intended to be arranged at a relatively large distance from the floor of an area to be illuminated, whereby light is to be generated with high intensity, which then falls on the area below - For example, a hall - is blasted.

As already mentioned, the arrangement according to the invention essentially consists of two components, on the one hand the supplementary module 200 and on the other hand the actual lamp 1, which is responsible for generating and emitting light. With the help of the supplementary module 200, the functionality of the lamp 1 in particular is to be further increased, it being possible for the supplementary module 200 to be used only optionally if the use of further electronic components is actually desired, as explained in more detail below. However, it can also be provided that the supplementary module 200 is dispensed with and the lamp 1 is used as an independent unit that is fully functional on its own. Accordingly, the configuration of the lamp 1 itself will first be briefly explained below. The extension according to the invention with the help of the supplementary module 200 is then described below.

The main components of the lamp 1 shown are a trough-shaped lamp housing 10 and a holding element 50 attached to the lamp housing 10, which together with optically effective covers 70 and a cover or cover element 100 encloses areas of the housing 10 in which electronic components for generating light are arranged . The luminaire 1 is divided into three elongated areas, a central area running in the middle along a longitudinal direction, which serves to accommodate an operating device, and two light emission areas formed on both sides of the central area, to which the light sources and the optical components assigned to the light sources for the Light output are assigned. In the example shown, the light is emitted via two essentially rectangular lateral areas of the lamp 1, which are arranged symmetrically to the longitudinal axis and via which light is emitted with high intensity.

As in this case in particular Figures 3 and 4 can be seen, the lamp housing 10 is trough-shaped with a housing base 11 that is approximately square in the exemplary embodiment shown, from which a laterally circumferential housing wall 12 extends downwards or in the light emission direction of the lamp 1, with the housing base 11 and housing wall 12 delimiting an interior space of the lamp.

The primary task of the housing base 11 is to enable the components of the lamp 1 responsible for generating and emitting light to be accommodated or supported in a suitable manner. Accordingly, the housing 10 is designed in such a way that the housing base 11 forms two lateral, flat areas 25 which serve to accommodate or store the lighting means. In the middle between the two lateral areas 25 there is also a third or central area 20 which serves to accommodate an operating device, for example in the form of a converter. This central area 20 is designed to be significantly deeper than the two receiving areas 25 for the lamps and thus forms a cuboid receiving space which projects beyond the plane of the flat receiving areas 25 at the rear but is closed towards the rear. All three areas 20 and 25 are designed as defined depressions or areas in the bottom 11 of the housing 10 .

During the operation of the lamps, a not inconsiderable amount of heat is generated, which must be efficiently dissipated from the housing 10 to a To avoid overheating of the temperature-sensitive components of the lamp 1. Correspondingly, a plurality of cooling fins 14 running parallel to one another are formed on the upper or rear side of the lamp housing 10, which create an enlargement of the surface. This promotes heat exchange with the ambient air, so that active cooling measures such as fans or the like can be dispensed with. The ribs 14, which have a height of about 1 cm, extend transversely to the longitudinal direction of the three receiving areas 20 or 25 and are optionally interrupted by the rearwardly protruding receiving area 20 for the operating device. As already mentioned, this forms a cuboid depression in the housing base 11, which clearly protrudes towards the rear.

In the case shown, it is provided that essentially all surface areas that form the outer surfaces of the lamp housing 10 are designed in such a way that the accumulation of larger amounts of liquid is prevented. For this purpose, it is provided that the surface areas mentioned be designed in such a way that liquid located on them can basically flow off due to the force of gravity.

In the present case, the rear surface areas of the housing 10 in particular are domed, i.e. slightly convexly curved, which ultimately means that there are essentially no flat surface areas, but in particular no depressions on the rear of the housing 10 that would allow liquid to collect . Instead, in principle, each partial area of the outer surface of the housing 10 has an inclination or curvature, albeit a very slight one, compared to the horizontal, which means that liquid flows either laterally via the outer sides of the housing wall 12 or via through-openings provided centrally in the housing 10 30 can drain. A slight inclination of the rear side 20a of the receiving area 20 for the operating device would also be advantageous in order to avoid the accumulation of liquid in this area as well.

As already mentioned, the two lateral receiving areas 25 each serve to store one or more LED circuit boards 130 (see e.g 6 ), by each of which a large-area light source is formed. The design of these flat recording areas 25 can in particular the representation of figure 4 be removed, which shows the lamp housing 10 without the corresponding additional components of the lamp 1. Apart from the indentations described below, both receiving areas 25 are planar, in order to enable the LED circuit boards 130 to be laid flat. This enables the heat to be transferred to the housing base 11 during operation of the lamp 1, as a result of which the cooling of the various lamp components and the heat dissipation is improved.

The LED circuit boards 130 can then be fastened to the lamp housing 10, for example by means of a screw connection, for which purpose the housing base 11 is formed in the corresponding receiving areas 25 with depressions or blind hole structures 27 projecting outwards with respect to the interior of the lamp. These indentations 27 are created as part of the manufacture of the lamp housing 10 and enable the threads to be cut into the corresponding material of the blind hole structure when the screws are screwed in, thus achieving secure attachment without the housing base 11 being penetrated by the corresponding screws . This is important insofar as the housing base 11 is also sealed in the area where the LED circuit boards 130 are fastened. Further indentations 28 of the flat receiving areas 25 can then be used, for example, for the corresponding introduction of positioning aids or the like, which ensure reliable alignment and attachment of the LED circuit boards 130 or the optically effective covers described in more detail below.

All three receiving areas 20 and 25 are sealed or closed towards the back. The only exceptions to this are openings 20c and 25c located on the bottom surfaces of the receiving areas 25 and the side walls 20b of the central receiving area 20 (see FIG figure 4 ), which represent the end areas of two tubular connecting channels 24, via which the lateral areas 25 are each connected to the central area 20. These connection channels 24 are used to easily lay connection cables from the operating device arranged in the central receiving area 20 to the lamps located in the lateral areas 25 . However, since these channels 24 themselves are sealed to the outside and only open into the receiving areas 20 and 25 at their ends, this ultimately means that the three receiving areas 20, 25 viewed as a whole are closed completely tightly by the housing 10 towards the rear .

A special feature of the lamp 1 shown, apart from the previous properties, is that the operating device and the LED lighting means 130 are not arranged together in a single, tightly enclosed space, but instead, receiving spaces corresponding to the receiving areas 20 or 25 are formed, which—with the exception of the above-mentioned connecting channels 24—are each closed in a sealed manner and then receive either the operating device or the LED illuminants 130 . The separate arrangement of these lighting components in the three separate rooms opens up the possibility of thermally decoupling the areas from one another on the one hand and also allowing cooling air to flow through in the spaces between two adjacent receiving rooms on the other.

It can be seen that on both sides of the central receiving area 20 three elongated through-openings 30 are formed in the housing base 11, which are part of the cooling air and drainage ducts described in more detail below. The through-openings 30 are each delimited by a circumferentially closed edge, which extends downwards transversely to the section of the lamp housing 10 that has them. The through openings 30 also bring about a reduction in material in the area between the central receiving area 20 and the lateral receiving areas 25, so that there is a certain thermal decoupling here and the risk is reduced that, for example, the heat generated by the LED lamps 130 will affect the area 20 is transmitted with the control gear. This is important because the use of aluminum, the presently preferred material for the housing 10, tends to transfer heat from one area to the other very efficiently due to its high coefficient of thermal conductivity. The passage openings 30 shown make a not inconsiderable contribution to the fact that the risk of such heat transfer being significantly reduced.

The individual sealing of the three receiving areas 20, 25 towards the front is made possible by the fact that the corresponding areas 20, 25 are each surrounded by a ring-like seal 40 which interacts with the cover element or an optical cover described in more detail later. In the preferred embodiment shown, it is provided that the receiving areas 20 and 25 are each surrounded circumferentially by a raised and/or recessed annular structure 35 formed integrally in the housing 10 and serving to receive the seal 40 . In particular, it is provided that each receiving area 20 or 25 is ring-like surrounded by its own sealing structure 35, which forms a circumferential groove or recess in which the seal 40 is received. The depression thus forms a circumferential channel into which the sealing material can be introduced in a simple manner. This can be for example, be a corresponding PU foam, which can be automatically injected into the recess as part of the production of the lamp 1. In this case, it is advantageous if the corresponding ring-like depressions all extend within a common plane, since this promotes the automated application, for example of the PU foam applied in liquid form, for sealing purposes. As an alternative to the PU foam mentioned, however, other sealing materials or foams could also be used to implement the seal 40 . For example, a strand of a corresponding sealing material could also be inserted into the depressions 36 .

It should be noted that, despite the circumferential sealing of the three receiving areas 20 and 25, as already mentioned, there must be an electrical connection between the central receiving area 20 and the two lateral areas 25 in order to ensure that the operating device connects the LED lamps 130 in a suitable manner can supply electricity. For this purpose, it is provided that the two receiving areas 20 and 25 are connected to one another by the connecting channels 24 already mentioned. These channels 24, which are designed as circumferentially closed hollow cylinders or tubes and open directly into the side wall 20b of the central receiving area 20 or the bottom wall of the corresponding lateral receiving area 25, allow corresponding electrical lines to be easily passed through. At the same time, however, they do not interrupt the peripheral seals 40, so that the sealing towards the front is ensured here by the measures described below. Since each lateral area 25 must be connected to the central receiving area 20, as in particular in figure 2 recognizable - in each case from a side wall 20b of the central receiving area 20 diagonally downwards a channel 24 to the adjacent receiving area 25.

The sealing of the three receiving areas 20 and 25 will now be explained in more detail below. Although the housing 10 provides the seals 40 surrounding these three areas 20 and 25, it is also necessary for the areas 20, 25 to be covered appropriately from the light emission side in order to protect the lamp components 130 from external influences, in particular from dust and /or to protect against moisture.

Responsible for this task is, among other things, the already mentioned, provided with the reference number 50 and in figure 2 recognizable holding element. This holding element 50 acts in the illustrated embodiment, however, not directly with the Regions 20, 25 surrounding seals 40 together but instead serves to hold a separate cover element 100 and optics or translucent covers described in more detail below, which are held by the holding element 50 and are designed in such a way that they each form a seal with the corresponding circumferential seals 40 interact.

The retaining element 50 consists first of all of a peripheral frame 51 which corresponds approximately to the shape of the lamp housing 10 and is therefore square and which has two connecting webs 52 running parallel to the longitudinal sides in the middle region. These webs 52, which run in the area of the above-mentioned through-openings 30 of the housing 10 and thus on both sides of the central receiving area 20, initially enable a dome-like or hood-like first cover element 100 to be attached several screws that pass through corresponding bores or screw receptacles 103 in the webs of the holding element 50 and in the cover element 100 . The screw connection is designed in such a way that even when the holding element 50 is already installed, only the cover for the central receiving area 20 can be opened and maintenance or repair work can therefore be carried out separately in this area. In this case, the protected arrangement of the lighting means 130 is retained, so that there is no risk of them being accidentally touched or damaged.

The first cover element 100 has a dome-like or hood-like cover area 101, which is initially surrounded by a circumferential, flange-like web 102, with the already mentioned screw sockets 103 for the screw connection to the holding element 50 being formed on the two longitudinal sides of this web 102. In this case, a further circumferential web 110, which forms a circumferentially closed sealing edge 111, extends from the outer circumference of the covering region 101 towards the rear (and thus perpendicularly to the circumferential web 102). When the cover element 100 is mounted, i.e. screwed on, the dome-like or hood-like cover area 101 protrudes slightly in comparison to the level of the underside of the frame 51, so that it forms a somewhat recessed receiving space A or a chamber, as shown in the sectional view in FIG figure 6 can be removed. The height of the covering area 101 can be adjusted to the dimensions of the operating device and possibly other electrical or electronic operating components for operating the LED lighting means 130 that are to be positioned in the receiving space A, as required.

For the sealing of the receiving space A, it is crucial that the cover element 100 has the mentioned circumferentially closed web or edge 110 with the sealing edge 111 in its area facing the housing base 11, which is in the mounted state of the retaining element 50 on the lamp housing 10 and in the screwed-on state of the cover element 100 contacts the seal 40, in particular dips into the flexible material of the seal 40, as is shown in figure 6 is shown. As a result, the housing 10 and the holding element 50 with the cover element 100 screwed to it enclose the central receiving space A in a completely sealed manner, so that the operating device and any other components that are stored in this space A are safely and reliably protected from external influences .

The retaining element 50 is fastened to the housing 10 via a large number of screw connections, for which purpose the retaining element 50 has corresponding openings 55 or cylinder-like reinforcements with openings which correspond to bores 31 in the housing bottom 11 of the lamp housing 10 . The bores 31 of the lamp housing 10 are each outside of the areas 20 and 25 to be sealed, which is why simple bores or openings that completely penetrate the housing base 11 could be used here. Preferably, however, cylindrical screw receptacles with the bores 31 are also provided here, which has the advantage that the housing base 11 can also be closed in this area, which ultimately improves the liquid drainage explained above.

An interaction corresponding to the above-described interaction between the cover element 100 and the seal 40, which seals the receiving space A, is also provided for the two receiving areas 25 for the LED illuminants 130, with the holding element 50 itself not being in direct contact in the exemplary embodiment shown occurs with the seals 40, but this function is fulfilled in each case by a transparent cover 70. These covers 70 are accommodated in areas on both sides of the hood-like cover member 100 and are held and positioned by the holding member 50 in such a manner that they can engage with the seals 40 .

The hood or dome-like cover 70 has a flat light-emitting area 71 which is surrounded all the way around by a U-shaped edge which has a leg 73 which runs out towards the seal 40 and which has one in one Flat circumferential sealing edge 74 forms. The function of this sealing edge 74 is comparable to the edge 111 of the cover element 100. This means that when installed, the edge 74 dips into the circumferential seal 40 on the housing base 11 of the light housing 10 and thereby completely encloses the corresponding receiving area 25 for the LED light sources 130 In this case, too, a completely sealed enclosed space B (see 6 ) obtained, in which the LED lamps 130 are now included.

The holding or positioning of the cover 70 required for this is realized by the holding element 50, which has a bearing edge 57 or a bearing web. As per the sectional view figure 6 can be removed, the covers 70 then lie with their lower edge of the U-shaped edge floating on the support edge 57, the dimensions of the holding element 50 being chosen such that it is ensured that the cover 70 actually interacts sealingly with the respective seal 40 .

A certain amount of play when mounting the cover 70 is advantageous here insofar as slight transverse displacements due to different temperature expansion coefficients in the materials of the lamp 1 can be compensated for in this way. In the exemplary embodiment shown, the cover 70 is therefore not rigidly connected to the holding element 50 or the lamp housing 10 . Instead, during assembly of the lamp 1, only the cover 70 is inserted accordingly into the holding element 50 and this is then screwed to the lamp housing 10 in the manner described above.

In order to influence the light emitted by the LED illuminants 130, the cover 70 has integral TIR lenses 90 which, in a known manner, focus the light emitted by an LED and emit it in a directed manner towards the underside. In this case, it is ideally provided that one lens 90 is used for each LED or LED cluster of the lighting means 130 .

A further function of the holding element 50 and the cover element 100 fastened thereto consists in the fact that this allows cooling air to flow through the passage openings 30 of the lamp housing 10 . For this purpose, the holding element 50 initially has openings 60 corresponding to the passage openings 30 of the housing 10 . The same applies to the cover element 100, in which case the openings 120 are additionally each surrounded by circumferential webs which are essentially transverse to the they are oriented in the section of the cover element 100 that has it and are aligned on their upper side with the through-openings 30 and 60 of the lamp housing 10 and the retaining element 50, so that cooling air ducts that widen slightly downwards are formed, which, as already mentioned, are on both sides of the receiving area 20 for the operating device are trained. On the one hand, these passageways allow cooling air to flow through (in figure 6 indicated by arrows), on the other hand, however, the outflow of liquid also in the opposite direction. As already mentioned, the back of the lamp housing 10 is designed in such a way that no large amount of liquid can accumulate there, since it either flows off laterally via the housing wall 12 or is discharged downwards via the passage channels.

Overall, the lamp 1 is characterized in that it is able to generate and emit light with a high intensity, while at the same time the housing and the components it accommodates are optimally protected.

As already mentioned, the light 1 described so far is ideally already fully functional on its own and can be used as a high-bay light like the lights known from the prior art. In certain situations, however, it may be desirable to add additional components to the lamp 1 in order to expand its functionality. A conceivable scenario here would be that the light 1 should also be used as an emergency light, for example, and should accordingly still provide a certain minimum level of lighting in the event of a failure of the general power supply. In this case, the lamp 1 must have an emergency power supply source in the form of accumulators, which provide the energy required for the emergency light. Another option for supplementing or expanding could consist in configuring the lamp 1 with means for wireless communication in order, for example, to provide improved control options.

However, the question then arises as to where and how the additional components required to expand the functionality should be arranged. Although the recording space A, in which the operating device of the lamp 1 is normally arranged, would possibly be suitable for this purpose, this space A is also limited in terms of its recording possibilities. In addition, in the two cases mentioned above, there is also the problem that, for example, the accumulators are temperature-sensitive and ideally not should be exposed to such strong temperature fluctuations as are present in this central area of the lamp 1 depending on the operation of the lamp 1. The arrangement of the communication means, which has also been mentioned, within the receiving space A is also problematic insofar as the housing trough is made of metal and would accordingly shield corresponding communication signals. Ultimately, therefore, the receiving space A does not represent the optimal solution for arranging additional components on or in the luminaire 1 .

In order to avoid this problem, the invention now provides for such extensions to be made available in the form of a supplementary module 200, which can be coupled to the lamp 1 in a simple manner and accommodates the additional components reliably and securely. Of course, it is ideally provided that this supplementary module 200 is only used when required, ie only in the in the figures 1 and 2 illustrated manner is attached to the lamp 1 when the functionality of the lamp 1 is actually to be expanded.

The individually in the Figures 7 and 8 The supplementary module 200 shown here has an independent housing 210 which is designed for detachable attachment to the lamp housing 10 . The attachment housing 210 internally encloses an independent area that can then be used to accommodate the additional components. An important property of this add-on housing 210 is that it is not only fastened externally to the lamp housing 10, but that in addition, when connected, a coupling between the receiving space A of the lamp 1 and the interior C of the supplementary module 200 is achieved. The two areas are therefore connected to one another in such a way that lines can easily be laid between the two areas A, C, with this coupling ideally being designed to be sealed against dust and/or splash water. In other words, the protected accommodation of the components within the housing 10 of the lamp as well as the components accommodated in the supplementary module 200 should not be impaired by the connection between the lamp housing 10 and the supplementary module 200 .

In order to achieve this protected connection between supplementary module 200 and lamp 1, the housing 210 of supplementary module 200 has a channel-like connecting element 205, which is approximately tubular in the exemplary embodiment shown, which extends laterally from housing 210 of supplementary module 200 in such a way that it in the one on lamp 1 fastened state of the supplementary module 200 protrudes into an opening 5 which is formed in an end wall 20d of the lamp housing 10, in particular in a wall which delimits the central receiving space A. This results in the figures 1 and 2 shown arrangement of the extension module 200 on the front of the lamp 1.

A sealing of the connection between the lamp 1 and the supplementary module 200 is achieved in that a constriction 206 is provided in the end region of the connecting element 205 on its outer circumference, which constriction serves to accommodate sealing means, for example in the form of an O-ring or the like. When attached to the lamp 1, these sealing means then interact with the edge area of the housing opening 5 in such a way that a dust-proof and/or splash-proof coupling is achieved, so that any corresponding requirements with regard to a desired protection class can be easily met.

In the exemplary embodiment shown, the housing 210 of the supplementary module 200 consists of two components, a trough-shaped housing part 220 on the one hand and a housing cover 240 on the other causes electromagnetic signals. This makes it possible, for example, to accommodate the previously mentioned means for wireless communication within the supplementary module 200, which can be used for external control of the lamp 1, with these means of communication then being arranged in a protected environment despite everything. In other cases, however, a different choice of material for the housing 210 would also be entirely conceivable.

According to the illustrations, the trough-shaped housing part has an approximately rectangular housing base 221 and a housing wall 225 running around the side. This results in a trough-like configuration, through which a receiving space C is created, which is used to store the additional lamp components. In figure 9 is shown by way of example that a wide variety of electronic components can be arranged within the receiving space C. These are, for example, funds for an emergency lighting operation, ie, on the one hand, corresponding energy supply means in the form of accumulators and, on the other hand, emergency lighting operating devices, which then process the energy provided by the accumulators in such a way that one for one Emergency lighting operation of the LED lamps 130 suitable voltage is made available. In principle, it would also be conceivable for the operating device for the LED lamps 130 actually provided in the housing 10 of the lamp 1 to be relocated to the supplementary module 200 if this is to be thermally decoupled from the LED lamps 130 in a particularly efficient manner. As already explained, completely different components can of course also be arranged within the supplementary module 200, for example means for communication, sensors, etc.

The attachment of the additional components is made easier by the fact that cylinder-like shoulders 222 are provided on the side of the housing base 221 facing the receiving area C, which on the one hand form support elements for positioning the components to be attached and on the other hand contain channels that can be used, for example, for screw fastening the components . These shoulders 222 for fastening the electronic components are preferably formed integrally with the housing part 220 and in particular in figure 10 recognizable, which represents isolated housing part 220 without any additional components.

The connecting element 205 already mentioned then also extends from the housing base 221. In the area of the housing base 221, this merges into the housing part 220 in one piece, so that a figure 10 recognizable elongated opening or recess 207 in the housing base 221 is formed, which then leads to the tubular area of the laterally protruding connecting part 205. Electrical lines can then be introduced into the connecting element 205 via this depression 207 and passed on to the interior of the lamp 1 .

In the figures 10 and 11 It can also be seen that the housing wall 225 of the housing part 220 is double-walled in the area adjoining the housing base 221, so that a preferably completely closed circumferential channel 226 is formed, in which an annular seal 230 is arranged. This seal 230 can be present in the form of an inserted sealing hose or, analogously to the procedure described in connection with the lamp 1, can also be formed by a foamed-in sealant. The housing cover 240 described in more detail below is then designed in such a way that it interacts with the seal 230 when it is arranged on the housing part 220, so that the interior space C of the supplementary module 200 is enclosed in a completely sealed manner, apart from the opening of the connecting element. For this purpose, the housing cover 240 has a annular, laterally encircling cover wall 245, which extends perpendicularly to the end wall 242 and corresponds in terms of its shape to the shape of the encircling channel 226. In the assembled state, the top wall 245 then protrudes into the channel 226, with the bottom edge 246 of the top wall in turn penetrating into the seal 230 in order to achieve a reliable seal. This achieves reliable protection of the receiving area C of the supplementary module 200 and of the components arranged therein.

The housing cover 240 can be releasably connected to the housing part 220, with a tool-free connection ideally being present in the form of a latch. For this purpose it is provided that the housing wall 225 of the housing part 220 has a plurality of latching openings 224 . In the exemplary embodiment shown, three latching openings 224 are provided, distributed in each case, in particular on the two longitudinal sides of the housing part 220 .

In a corresponding manner, latching projections 244 are provided on the lateral areas of the peripheral cover wall 245, which engage in the latching openings 224 from the inside when the cover 240 is in place. In this way, the cover 240 is securely held on the housing part 220 . These latching connections are not sealed here, although this is not necessary either, since the sealed interaction between housing part 220 and housing cover 240 is achieved, as already mentioned, by seal 230, which interacts with lower edge 246 of cover wall 245.

Of course, other options for fastening the cover 240 to the housing part 220 would also be conceivable. However, the solution shown is characterized by its simple structure and is completely sufficient for the necessary protected accommodation of the additional lighting components within the supplementary module 200.

The supplementary module 200 formed in this way is then attached to the end face of the lamp 1, as already mentioned. In the exemplary embodiment shown, provision is made for this that two fastening projections 235 which protrude laterally approximately vertically are provided on a side wall of the housing part 220 and rest on an edge region of the upper side of the lamp housing 10 . A defined mounting is achieved in that openings provided on the projections 235 can then be used for the passage of screws 236, which can be inserted into corresponding openings or bores 13 (see figure 3 ) of the lamp housing 10 are screwed in. It should be noted in this context that these openings 13 or bores for receiving the screws 236 are outside of the tightly enclosed receiving area B for the LED lighting means 130, so that the sealing is not impaired by the attachment of the supplementary module 200. The stability of the projections 235, which are preferably an integral part of the housing part 220 and are accordingly also made of plastic, is increased by additional support struts 237 in the figures 7 and 11 are recognizable.

Ultimately, the measures according to the invention open up the possibility of easily assigning additional components to the lamp in order to expand its functionality, with these additional components being protected despite everything and being thermally decoupled sufficiently efficiently from the light sources of the lamp.

As already mentioned, however, the supplementary module 200 should only be used if the functionality of the lamp 1 is actually to be expanded. In the event that no supplementary module 200 is required, it must nevertheless be ensured that the receiving area A of the lamp 1 is enclosed in a sealed manner. Accordingly, it can be provided that the housing 10 of the lamp 1 is already provided with the access opening 5 at the factory, but this is closed by a suitable sealing element, which is only removed if necessary to enable the supplementary module 200 to be connected.

Finally, it should be pointed out that the solution according to the invention is of course not limited to the lamp shown. This could also have a completely different shape and, in particular, enclose a receiving space in a different way, which is used for the protected receiving of lighting components. Despite everything, it could also be provided in this case to design the housing of the lamp in such a way that it is coupled in the inventive manner described above with a supplementary module which contains additional components with the help of which the functionality of the lamp is expanded.

Claims (15)

arrangement, having • a lamp (1) comprising at least one receiving space (A) for lamp components, wherein a housing wall (20d) of the lamp (1) adjoining the receiving space (A) has an opening (5), and • an external supplementary module (200), having a space (C) for accommodating electronic components, wherein the supplementary module (200) can be fastened to the outside of the lamp (1) in such a way that in the fastened state the space for accommodating electronic components is coupled to the accommodating space (A) of the lamp (1) via the opening (5). Arrangement according to claim 1,
characterized,
that when the supplementary module (200) is attached to the lamp (1), the space (C) for accommodating electronic components is sealed off via the opening (5) with the accommodating space (A) of the lamp (1), preferably dust and/or Splashproof sealed, is coupled. Arrangement according to one of the preceding claims,
characterized,
that a housing (210) of the supplementary module (200) has a channel-like connecting element (205) for coupling the space (C) for accommodating electronic components to the accommodating space (A) of the lamp (1). Arrangement according to claim 3,
characterized,
that the connecting element (205) has a substantially tubular shape and preferably extends in one piece from an outer wall of the housing (210). Arrangement according to claim 4,
characterized,
that the connecting element (205) preferably extends in one piece from an outer wall of the housing (210) and is coupled to the lamp (1). State engages in the opening (5) of the housing wall (20d) of the receiving space (A) of the lamp (1), sealing means being preferably arranged on the outer circumference of the connecting element (205). Arrangement according to one of the preceding claims,
characterized,
that the housing (210) of the supplementary module (200) from • a trough-shaped housing part (220) which has a housing base (221) and a housing wall (225) running laterally around the housing base (221), and • a housing cover (240) closing off this trough-shaped housing part (220), which has a cover wall (245) running laterally parallel to the housing wall (225), is formed, wherein the housing cover (240) can be releasably connected to the housing part (220). Arrangement according to claim 6,
characterized,
that the housing wall (225) running laterally around the housing base (221) together with the housing base (221) forms an assembly area for accommodating electronic components. Arrangement according to claim 7,
characterized,
that the housing base (221) has shoulders (222) for fastening the electronic components on the side facing the assembly area, which shoulders are preferably formed integrally. Arrangement according to one of claims 6 to 8,
characterized,
that the housing wall (225) has openings (224) into which locking projections (244) formed on the housing cover wall (245) engage for locking the housing cover (240) to the trough-shaped housing part (229). Arrangement according to one of claims 6 to 9,
characterized,
that parallel to the housing wall (225) running laterally around the housing base (221), on the side facing the housing base (221), a completely circumferential channel (226) is formed for receiving a seal (230), in which in the connected state the cover wall (245 ) penetrates in such a way that the assembly area (C) is protected against dust and splash water. Arrangement according to one of the preceding claims,
characterized,
that essentially all surface areas which form the outer surfaces of the arrangement are designed in such a way that they allow a liquid to drain off when the supplementary module (200) is mounted on the lamp (1). Arrangement according to one of the preceding claims,
characterized,
that the housing (210) of the supplementary module (200) for attachment to the lamp (1) has at least one attachment projection (235), which is preferably attached to the housing wall (225) with diagonal struts (237). Arrangement according to one of the preceding claims,
characterized,
that the housing (210) of the supplementary module (200) can be screwed to the housing (10) of the lamp (1). Arrangement according to one of the preceding claims,
characterized,
that the housing (210) of the supplementary module (200) is made of plastic. Arrangement according to one of the preceding claims,
characterized,
that in the supplementary module (200) • Power supply means, for example in the form of an accumulator and/or • Means of communication and/or • one or more sensors are arranged.

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