AT17709U1 - Tub-shaped lamp housing - Google Patents

Abstract

A lamp housing (10) has a housing base (11) and a housing wall (12) running laterally around the housing base (11) and delimiting a lamp space with the housing base (11), the housing base (11) having at least one flat area (25) for preferably planar accommodation of at least one lamp component, and wherein essentially all surface areas of the lamp housing (10) which form the outer surfaces of the lamp housing (10) are designed in such a way that in an assembled state of a lamp (1 ) allow a liquid to flow off via the outside of the housing wall (12) and/or an opening (30) formed in the lamp housing (10).

Description

description

TUB-SHAPED LUMINAIRE HOUSING

The present invention relates to a trough-shaped lamp housing, which is used to realize a lamp. In particular, a so-called high-bay lamp is to be formed with the aid of the lamp housing.

[0002] Highbay lights are understood to be lights that are used, for example, to illuminate larger halls or industrial complexes. In this application, the lights are usually arranged at a relatively large distance from the floor, which is why there is a requirement that the light 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 must then be stored in a suitable manner, whereby care must be taken to ensure 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 from Moisture and/or dust are protected.

A lamp of the type described above is known, for example, from WO 2014/086770 A1 by 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.

Known in the prior art lamp has proven itself many times and is characterized by its excellent light output and high operational reliability. However, it must be taken into account here that such lights are often used in environments in which long-term damage to the housing is to be feared due to the external conditions. For example, it has been shown that with lights of the type described above, there is often a risk of water damming up or collecting in certain areas of the outside of the housing. Since this water contains pollutants from the environment and can therefore be chemically aggressive under certain circumstances, there is a risk that corrosion will occur at these corresponding points and the housing will ultimately be damaged.

The present invention is therefore based on the object of specifying a way of making available a lamp that is comparable in terms of its photometric properties, but which is protected even better and more reliably against external influences, in particular against moisture and moisture.

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

According to the invention, a housing is provided which has a housing base and a housing wall which runs laterally around the housing base and which together delimit a luminaire space. This is used for accommodating corresponding lighting components and is covered on the side intended for light emission by a corresponding, at least partially translucent cover. According to the invention, the lamp housing is designed in such a way that essentially all surface areas of the housing that form the outer surfaces of the housing are designed in such a way that, in an installed state of a lamp using the lamp housing, they prevent liquid from draining over the outside of the housing wall and/or over one in the light housing

allow trained opening.

According to the invention, a trough-shaped lamp housing is proposed which has:

* a case back and

* a housing wall surrounding the housing base, which is connected to the housing

floor delimits a luminaire space,

wherein the housing base has at least one flat area for preferably flat accommodation of at least one light component, and wherein essentially all surface areas of the light housing, which form the outer surfaces of the light housing, are designed in such a way that, when a light using the light housing is in an installed state, they prevent liquid from draining off allow via the outside of the housing wall and / or via an opening formed in the lamp housing.

The inventive design of the lamp housing means that the risk is avoided that liquid can accumulate in certain areas of the outside of the housing and lead to the negative effects mentioned above. Instead, liquid that is on the outside or surface of the housing will immediately drain away under the force of gravity via the outside of the housing wall or via the mentioned opening formed in the housing, so that there is no risk that surface areas of the housing over a longer period of time exposed to chemically aggressive liquids. Due to this measure according to the invention, the housing is significantly better protected against external influences, so that a long-lasting use of the lamp is ensured.

[0010] In addition to the flat receiving area mentioned above, the housing base preferably has a further area for receiving a further lighting component, in which case at least one, preferably a plurality of oblong openings arranged one behind the other are then formed between the two areas. These openings allow a liquid located on the outside of the housing to flow off, as already mentioned above. However, they also fulfill the task of optimizing the cooling of the luminaire. On the one hand, the openings result in a certain thermal decoupling being achieved between the two receiving areas and thus little or no heat is transferred from one area to the other. On the other hand, the openings can also be used for air to flow through, with the help of which the heat generated during operation of the lamp is efficiently dissipated to the environment. Despite the relatively high power with which the lamps are operated overall and the resulting heat, it can thus be ensured that the various heat-sensitive components of the lamp are sufficiently cooled and damage is avoided.

It can be provided in particular that the first area for flat recording is used to arrange lamps, while the other area of the recording, for example, an operating device is used to operate the lamps. Since these additional components usually require a different amount of space than, for example, flat LED circuit boards, it is preferably provided that the further area forms an accommodation space that protrudes at the rear beyond the plane of the flat accommodation area.

Apart from the fact that the measures according to the invention described above are intended to prevent the lamp housing from being damaged on the outside due to moisture or liquid, it should of course also be possible to sufficiently protect the components located in the interior of the housing from moisture protection. It is therefore preferably provided that the area or areas for accommodating the lamp components are each surrounded by a ring-like channel which is designed to accommodate a seal. The duct or ducts preferably run in a common plane, so that ultimately the respective receiving areas are reliably and efficiently protected from external influences by a simply designed cover element which interacts with the seal.

In the example described above, as already mentioned, it is provided that illuminants are arranged in a first receiving area and the other area is used to accommodate an operating device for the illuminants. In this case, it is of course necessary for the two areas to be connected to one another in some way in order to enable the corresponding laying of power supply lines from the operating device to the lighting means. For this purpose, according to a preferred development of the invention, a connecting channel is formed on the housing, which connects the two receiving areas to one another. However, this is designed in such a way that it does not interrupt the ring-like channels mentioned above for receiving the seals. As before, there is still the possibility of adequately protecting the components accommodated in the lamp housing from external influences, but nevertheless ensuring an electrical connection between the areas and the components located therein.

An improvement in the heat dissipation of the housing to the environment can also take place according to another advantageous embodiment of the invention in that cooling fins are formed on the back of the housing. The drainage of liquid can be promoted in particular by the fact that those outer surfaces of the housing which form the back of the housing in the installed state of a light using the light housing are designed to be inclined and/or cambered. This means that any liquid that accumulates on the outside of the housing will drain away due to gravity, so that a significant improvement in the protection of the luminaire housing is achieved compared to previously known solutions.

[0015] The lamp housing is preferably an aluminum die-cast part. However, it would also be conceivable to use other materials and/or processes to produce the housing.

According to the invention, a lamp is also proposed, which has a lamp housing as described above, as well as lamps, which are arranged flat on the receiving area mentioned.

The lamp housing according to the invention thus makes it possible to form a lamp in an efficient manner, which has a housing according to the present invention and at least one lamp, which is accommodated in the lamp housing, in which case both for the components located within the housing and for the housing itself there is sufficient protection against external influences, in particular against moisture.

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

[0019] FIG. 1 shows a perspective view of a high bay lamp with a lamp housing according to the invention from below;

[0020] FIG. 2 shows a further perspective view of the lamp according to FIG. 1 from above;

[0021] FIG. 3 shows a view of the underside or the interior of the inventive

dimensions of the lamp housing; [0022] FIG. 4 shows a sectional view of the right half of the lamp housing;

Figures 5 and 6 two views of a frame-like holding element, which is intended to be connected to the underside of the lamp housing with this;

[0024] FIGS. 7 and 8 show two views of a cover element which, together with the frame-like holding element, closes the underside of the receiving area for the operating device of the lamp;

[0025] FIGS. 9 to 11 views of a first variant of an optically effective cover for the lamps used in the lamp shown;

[0026] FIGS. 12 to 14 views of a second variant of an optically effective cover for the lamps used in the lamp;

[0027] FIG. 15 shows a sectional view of a lateral area of the lamp to illustrate the arrangement of the lamps and the attachment of the optically effective cover for the lamps using the frame-like holding element;

[0028] FIG. 16 shows an enlarged view of a fastening area on the rear side of the lamp housing, which is used to hang up the lamp; and

[0029] FIG. 17 shows a suspension bracket used to suspend the lamp.

The light according to the invention, which is explained in more detail below and is provided with the reference number 1 in the figures, is intended, as already mentioned, to form a so-called high-bay light which, as a compact but powerful light, is suitable, for example, for use as a hall light. As with the lamp described in WO 2014/086770 A1 by the applicant, it is therefore provided that the lamp 1 according to the invention shown here is to be arranged at a relatively large distance from the floor, whereby light is to be generated with high intensity, which then affects the area below - for example a hall - is blasted.

The basic arrangement of the components responsible for generating the light corresponds accordingly to the arrangement as is also provided in the light of WO 2014/086770 A1. This means that one or more operating devices—not shown in detail in the figures—are positioned in a central area of the lamp 1, with lighting means being arranged on both sides of the central area, which are responsible for generating and emitting light. However, the concept according to the invention can also be applied to other lamp shapes, as will be explained at a later point in time.

The essential components of the light 1 according to the invention are a trough-shaped light housing 10 and a retaining element 50 attached to the light 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 of the Luminaire 1 are arranged to generate light. As in the case of the light in the prior art, the light 1 according to the invention is also divided into three elongated areas, a central area running in the middle along a longitudinal direction, which accommodates an operating device and possibly other electronic components that control the operation of the light 1, is used, as well as two light-emitting areas formed on both sides of the central area, in which the lighting means and the optical components for the light emission assigned to the lighting means are arranged. In the view according to FIG. 1, 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.

A suspension or assembly of the lamp 1 can be done according to the example shown with the help of suspension brackets 150 which are connected to the two end faces of the rear of the housing 10 with this or suspended in this. These suspension brackets 150, which will be described in more detail later, are designed in such a way that they allow different suspension elements to be hung in or fastened, so that there are a wide variety of mounting options for the lamp 1. Furthermore, the housing 10 is designed in such a way that these suspension measures do not result in the risk of moisture being able to penetrate into the interior of the housing 10, as will also be described in more detail later.

First, the detailed design of the lamp housing 10 according to the invention will be explained below, which forms a central component of the lamp 1 shown.

As can be seen in particular from Figures 1 - 4, the lamp housing 10 is trough-shaped with an approximately square housing base 11 in the illustrated embodiment, from which a laterally circumferential housing wall 12 extends downwards or in the light emission direction of the lamp 1 , wherein housing bottom 11 and housing wall 12 delimit a lamp interior. In this case, the housing 10 is preferably provided in the form of an aluminum die-cast body, since in this way the configuration of the housing 10 described in detail below can be realized in an efficient manner. In principle, however, the use of other suitable materials would also be conceivable. In particular, corresponding plastic materials would also be conceivable here, which would enable the production of the housing 10 in the context of an injection molding process in a manner comparable to aluminum, but then have to have a correspondingly sufficient stability and heat resistance.

The primary task of the housing base 11 is to enable suitable accommodation or storage of the components of the lamp 1 responsible for generating and emitting light. Accordingly, the housing 10 is designed in such a way that the housing base 11 initially forms two lateral flat areas 25 on its side facing the interior of the housing 10, which are used for receiving or storing the lamps, which will be described in more detail later. 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. In terms of its width, this area 20 is essentially adapted to the width of such operating devices and is accordingly dimensioned somewhat narrower than the two lateral receiving areas 25. However, compared to the two receiving areas 25 for the illuminants, it is designed to be significantly deeper and thus forms an area across the plane of the planar receiving areas 25 on the back, but closed to the back of the cuboid receiving space. All three areas 20 and 25 are designed as defined depressions or areas in the bottom 11 of the housing 10, with the dimensions of the areas 25 obviously also being able to be chosen differently depending on the lamps used.

During the operation of the lamps, a not inconsiderable amount of heat will arise, which must be efficiently dissipated from the housing 10 in order 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.

A problem with known lights of the type shown was that they were partially exposed to high humidity, depending on the environment in which the lights were used. In particular, there was a risk of liquid collecting on certain areas of the surface of the housing. Due to external influences, this accumulating liquid could be chemically aggressive and attack the material of the luminaire housing, which could ultimately lead to the risk of corrosion and damage to the luminaire as a whole.

According to the present invention, therefore, the case 10 is specially designed so that such problems can be avoided.

In particular, it is provided that essentially all surface areas of the housing 10, which form the outer surfaces of the lamp housing 10, are designed such 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 is located on them

can basically drain away due to gravity.

As can be seen, for example, from the sectional view in Figure 4, the rear surface areas of the housing 10 in particular are cambered, i.e. slightly convexly curved, which ultimately means that there are essentially no flat surface areas, but in particular no indentations on the rear of the Housing 10 arise that would allow the accumulation of liquid. Instead, in principle, each partial area of the outer surface of the housing 10 has an inclination or curvature, albeit a slight one, compared to the horizontal, which means that liquid flows either laterally via the outer sides of the housing wall 12 or via the through-openings provided centrally in the housing 10 30 can drain.

Ultimately, therefore, no surface area of the lamp housing 10 will be covered with liquid over a longer period of time, so that it is impossible that the material of the housing 10 or a corresponding coating is attacked and damage to the housing 10 ultimately occurs. This ensures permanent protection of the components located within the lamp housing 10 .

The above-mentioned cambering or sloping design of the surface areas can possibly also refer to the upper edges of the cooling fins 14 already mentioned. However, these are usually made so narrow that no significant amount of liquid will collect here anyway. Accordingly, it is primarily to ensure that the flat areas of the rear side 11a of the lamp housing 10 are designed in the manner described above. 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.

After in particular the design of the outside of the lamp housing 10 according to the invention has been explained so far, the design of the inner region will now be described in more detail below.

As already mentioned, the two lateral receiving areas 25 serve to store one or more LED circuit boards 130 (see FIG. 15), each of which forms a large-area light source. The design of these flat receiving areas 25 can be seen in particular from the illustration in FIG. 3, 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 allow the LED circuit boards 130 to rest 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 that project 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 appropriate introduction of positioning aids or the like, which ensure reliable alignment and attachment of the LED circuit boards 130 or the optically effective covers 70 or 80 described in more detail below.

The central receiving area 20 for receiving the other electronic components

th, in particular an operating device, will then also be used to supply a power supply cable for powering the light 1 . For this purpose, a corresponding opening (not shown) is provided on the rear side 20a or on the side wall 20b of the receiving area 20, through which a power supply cable can be passed. By means of additional sealing measures, e.g. in the form of a grommet, the sealed lead-out of the power supply cable (not shown in detail) can then be made possible.

It is essential that all three receiving areas 20 or 25 are sealed or closed towards the rear when the lamp 1 is in the installed state. 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, 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. As will be described in more detail at a later point in time, these connection channels 24 are used to lay connecting cables from the operating device arranged in the central receiving area 20 to the light sources located in the lateral areas 25 in a simple manner. 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 .

Apart from the previous properties, a special feature of the luminaire 1 shown is that the control gear and the LED light sources 130 are not arranged together in a single, tightly enclosed space, but instead are formed in receiving spaces corresponding to the receiving areas 20 and 25 respectively are, which - with the exception of the above-mentioned connection channels 24 - are each sealed closed and then either the operating device or the LED light sources 130 accommodate. 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 is recognizable that on both sides of the central receiving area 20 three elongated passage 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, which can of course also be designed differently in terms of their length and shape, also cause 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 reduces the risk is that, for example, the heat generated by the LED light sources 130 is transferred to the area 20 with the operating device. 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 - in Figure 4 the seal 40 is only shown for the right receiving area 25 - are surrounded, which interacts with the cover element described in more detail later or an optical cover. 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 - as can be seen from the sectional representation in Figure 4 - each receiving area 20 or 25 is surrounded by its own ring-like sealing structure 35, which has a circumferential groove or

Recess 36 forms in which the seal 40 is received. The depression 36 thus forms a circumferential channel into which the sealing material can be introduced in a simple manner. This can be a corresponding PU foam, for example, which can be injected into the recess 36 in an automated manner as part of the production of the lamp 1 . It is advantageous here if the corresponding ring-like depressions 36 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.

The illustrated cross-sectional shape of the sealing structures 35 prevents the applied sealing material from flowing away, which collects at the low point of the sealing structure 35 and hardens correspondingly slightly here. 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 . In principle, the use of so-called structural sealing materials would also be conceivable, in which case the sealing structure 35 shown could also be dispensed with if necessary.

It should be noted that, despite the circumferential sealing of the three mounting areas 20 and 25, as already mentioned, there must be an electrical connection between the central mounting area 20 and the two side areas 25 in order to ensure that the control gear, the LED lamps 130 suitably powered. 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 in more detail below. Since each lateral area 25 must be connected to the central receiving area 20, a channel 24 extends--as can be seen in particular in FIG.

The sealing of the three receiving areas 20 and 25 for the operating device and the LED lamps 130 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 accordingly in order to protect the lamp components 130 from external influences, in particular from dust and/or moisture protection.

Responsible for this task is, among other things, the already mentioned holding element, which is provided with the reference number 50 and is shown isolated in FIGS. In the exemplary embodiment shown, however, this holding element 50 does not directly interact with the seals 40 surrounding the regions 20, 25, but instead serves to hold a separate cover element 100 and optics or transparent covers 70 or 80, which are described in more detail below, and which are held by the holding element 50 are held in such a way and are designed in such a way that they each cooperate sealingly with the corresponding peripheral seals 40 .

As Figures 5 and 6 show, the holding element 50 initially consists 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 central 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 the attachment of a dome-like or hood-like first cover element 100, which is shown in FIGS . The cover element 100 is fastened with the aid of a plurality of screws, which drill corresponding bores 53 or screw receptacles 103 in the webs 52 of the holding element 50 and in the

cover element 100 take action. 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 if necessary. 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 are. The two frontal areas of the web 102 are then received in corresponding recesses 54 on the underside of the retaining element 50, which are dimensioned such that when the cover element 100 is screwed on, the web 102 and the underside of the retaining element 50 lie flush in a common plane (see Fig also figure 1). Furthermore, 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).

In the mounted, i.e. screwed-on, state of the covering element 100, the dome- or hood-like covering area 101 protrudes slightly in comparison to the plane of the underside (corresponding to the mounted orientation shown in Fig. 15) of the frame 51, so that it has a somewhat recessed receiving space A or forms a chamber, as can be seen from the sectional view of FIG. The height of the covering area 101 can, of course, be adapted 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. The use of an additional carrier would also be conceivable, so that the components accommodated in this area A can be stored on several levels. In addition to the operating device, batteries or accumulators for emergency lighting, sensors such as presence or brightness sensors or comparable lighting components could also be arranged in this area A, for example.

It would also be conceivable to optionally provide one or more additional cover elements 100, the cover area 101 of which is more bulged and thus protrudes significantly beyond the holding element 50 and the housing 10 of the lamp 1 towards the underside. This not only creates a particularly large storage area for storing a large number of operating components for the lamp 1, but also opens up the possibility of storing particularly temperature-sensitive components. This is because most of the heat is given off by the lighting means 130 during operation of the lamp 1, but this heat tends to migrate upwards, so that components positioned below this level of the lighting means 130 are particularly well protected against overheating.

For the sealing of the receiving area A, it is decisive 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 in the mounted state of the retaining element 50 on the light housing 10 as well as in the screwed-on state of the cover element 100, the seal 40 contacts, in particular dips into the flexible material of the seal 40, as is shown in FIG. As a result, the housing 10 and the retaining 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 area 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, which is made of plastic, for example, and is produced by injection molding, has corresponding openings 55 or cylinder-like reinforcements with openings that are connected to bores 31 in the housing base 11 des

Luminaire housing 10 correspond. 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, whereby in the exemplary embodiment shown again not the holding element 50 itself directly comes into contact with the seals 40, but this function is fulfilled by a transparent cover 70 and 80 respectively. These covers 70, 80 are accommodated in the area of the openings 56 of the frame 51 formed on both sides of the hood-like cover element 100, which ultimately form the light emission openings of the frame-like holding element 50, and are held and positioned by the holding element 50 in such a way that they can be connected to the seals 40 can work together.

Different variants of transparent covers 70, 80 can be used, a first variant being illustrated in FIGS. 9 to 11 and a further variant being illustrated in FIGS. 12 to 14. In both cases, the cover is also used to influence the light emitted by the LEDs or to hold a corresponding lens.

In principle, both variants of the covers 70 and 80, which are again hood- or dome-like, are provided with a planar light-emitting area 71, 81, which is surrounded all around by a U-shaped edge 72, 82, which extends to the seal 40 leg 73, 83 running out towards it, a connecting leg running transversely thereto and an inner leg connecting the connecting leg to the rest of the cover 70, 80, the U-shape increasing the stability of the cover 70, 80 on the one hand and the outer leg 73, 83 on the other is directed upwards and forms a circumferential sealing edge 74, 84 in one plane. The function of this sealing edge 74, 84 is comparable to the edge 111 of the cover element 100. That is, in the installed state, the edge 74 or 84 dips into the circumferential seal 40 on the housing base 11 of the lamp housing 10 and thereby completely encloses the corresponding receiving area 25 for the LED lighting means 130. In this case too, a completely sealed enclosed space B (see FIG. 15) is obtained, in which the LED lighting means 130 are now accommodated.

The mounting or positioning of the cover 70 or 80 required for this is realized by the holding element 50, which has an inwardly projecting support edge 57 or a support web surrounding the two openings 56. As can be seen from the sectional view according to FIG Cover 70 or 80 actually sealingly cooperates with the respective seal 40. The bearing edge 57 extends in a plane transversely or orthogonally to a pressing direction for pressing the cover 70, 80 in contact with the seal 40 distributed, preferably evenly distributed on the circumference of the openings 56 are arranged.

However, a certain amount of play when mounting the cover 70 or 80 is desired insofar as slight transverse displacements due to different temperature expansion coefficients in the materials of the lamp 1 can be absorbed as a result. In the exemplary embodiment shown, the cover 70 or 80 is not rigidly connected to the holding element 50 or the lamp housing 10 . Instead, when assembling the

Luminaire 1 is merely inserted the cover 70 or 80 into the holding element 50 and this is then screwed to the luminaire housing 10 in the manner described above.

The two variants of the cover 70 and 80 shown in FIGS. 9 to 14 differ primarily with regard to the mounting of further optical elements which are provided for influencing the light emitted by the LED illuminants 130. In both cases, these are TIR lenses 90 positioned on the rear side opposite the light emission surface of the respective cover 70, 80, 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 , the LED or the associated LED cluster then engaging in the recess 91 formed on the upper side of the lens 90 . This arrangement of the lens 90 with respect to the associated LED and the configuration of the lens 90 ensures that the light emitted by the LEDs in almost all directions is influenced in the desired manner and is used for efficient light emission.

In the variant of the cover 70 shown in FIGS. 9 to 11 and 15, it is provided that the lenses 90 are an integral part of the cover 70 and are correspondingly integrally formed on the rear side thereof. In this case, the cover 70 is preferably made of the same light-permeable material throughout, although it would still be conceivable for those components through which the light passes or which are intended to influence the light to be made of a different material than the rest of the cover 70 .

In contrast, the variant shown in FIGS. 12 to 14 represents a particularly preferred embodiment for the cover 80 since the cover 80 is now used for the additional storage of a separate component 88 which contains the lenses 90 . For this purpose, the cover 80 has two circumferential webs 85 and 86 on the rear side opposite the light exit side, the upper edge of the web 85 forming a ring-like support surface for the lens plate 88 and the somewhat higher circumferential web 86 enclosing the plate 88 laterally with a small amount of play . The advantage of this solution is that the lens plate 88 can move sideways slightly compared to the cover 80 or slight displacements are possible. This opens up the possibility that the sealing edge 84 of the cover 80 is permanently in contact with the seal 40 and, despite everything, the lens plate 88 can optionally migrate with the LEDs. Relative shifts caused by temperature can hereby be better compensated and a permanently correct positioning of the lenses 90 with respect to the LEDs is ensured. The correct alignment of the lenses 90 with respect to the LEDs can also be supported in that pin-like positioning or centering pins (not shown in detail) are formed on the lens plate 88 and engage in corresponding openings in the LED circuit board 130 . Corresponding bulges 28 can be provided in the housing bottom 11 of the lamp housing 10 for this purpose, which allow the insertion of a corresponding centering pin, but despite everything do not impede the flat contact of the LED circuit board 130 on the receiving area 25 . Of course, such positioning elements can also be used in the cover 70 according to the first variant.

As already mentioned, the variant shown in FIGS. 12 to 14 represents a particularly preferred embodiment for designing the cover 80 and the associated optical system for influencing the light output also in the fact that the optics and the underlying LED circuit boards 130 are less susceptible to impact and thus damage due to vibrations - e.g. when transporting the lamp 1 - can be avoided.

Of course, additional variations can also be made when realizing the covers 70, 80. These relate, for example, to the configuration of the optical elements for influencing the light, in which case, for example, other light-refracting or light-scattering elements or structures could also be used as an alternative to the lenses 90 shown. In particular, one could think of suitable prism structures or lenses designed in some other way, which may also be on the underside, i.e. the light

radiation surface of the cover could be arranged. Furthermore, if necessary, additional films could be inserted in order to influence the light output in the desired way. In principle, the optics can have optical materials such as scattering particles or conversion particles, optical structures such as a roughened surface, and/or optical elements such as lenses or a lens array.

The choice of material can also be adapted to the desired light output, with a choice of material influencing the hue or the color temperature of the emitted light also being conceivable. In the second variant, there is also the possibility of forming the cover 80 and the optics 88 from different materials. In this case, a particularly chemically resistant material can then be selected for the cover 80 in particular, while the optics 88 are formed from a material which can be used in a particularly suitable manner for influencing the light.

Finally, it would also be conceivable to design the cover element 100 and/or the cover 70, 80 in such a way that they are an integral part of the holding element 50. Particularly in the event that another separate lens plate 88 is provided for influencing the light, as in the variant in FIGS and on the other hand the lenses 90 are correctly positioned with respect to the LEDs.

With regard to the materials for the holding element 50 and the cover element 100, it should be noted that these can consist of various suitable materials, depending on the application of the lamp 1. Depending on the chemical resistance it is intended to have, the holding element 50 can be made of plastic or another material, in particular aluminum or sheet metal. The same also applies to the cover element 100, it being noted that all components can be combined in any combination with the other components made of different materials. This gives the greatest possible flexibility with regard to the final choice of material, so that depending on which light emission properties the luminaire should have and how well protection against external influences and heat dissipation should be achieved, the luminaire can be optimally adapted to the lighting by selecting the appropriate components Can be customized to consumer needs.

Another function of the holding element 50 and the cover element 100 attached thereto is that it 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, the openings 120 being additionally surrounded by peripheral webs 121 in each case. These webs 121 are oriented essentially transversely to the section of the cover element 100 that has them, but in this case are aligned at a slight incline and are aligned on their upper side with the through-openings 30 and 60 of the lamp housing 10 and the holding element 50, so that cooling air channels that widen slightly downwards are formed which, as already mentioned, are formed on both sides of the receiving area 20 for the operating device.

The webs 121 can laterally delimit the passage openings 30 of the lamp housing 10 on the inside or outside and, in a preferred embodiment, rest against them. Appropriate splash protection can be provided in this way, so that no splashing water gets into the space between holding element 50 and cover 70 or 80 , which would be particularly disadvantageous in the area of seal 40 . In order to nevertheless be able to drain off penetrating water, appropriate holes can be provided in the holding element 50 and/or the cover element 100, for example, through which holes water can drain out of this limited space.

The thermal passage openings 30 can also be bent inwards or downwards circumferentially, as can be seen in FIG. 4 or 15. As a result, the edges of the thermal passage openings, which are bent in particular towards the holding element 50, can

30 with the above-described webs 121 of the holding element 50 form a preferably continuous and edge-closed cooling air and drainage channel. In cross-section, this channel is then designed in such a way that, starting from below, it initially tapers down to approximately half the height and then widens again, as can be seen in the sectional view of FIG.

The through-channels formed in the manner described above thus allow cooling air to flow through on the one hand, but also allow liquid to flow off on the other hand. 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. Here, too, the corresponding funnel-like design of the channels is advantageous, since they initially taper towards the underside and accordingly the risk of liquid flowing downwards penetrating laterally into the sealing areas between the various components of the lamp 1 is reduced.

Another special feature of the lamp housing 10 is the interaction of the cooling air ducts mentioned with the surface of the lamp housing 10 designed in accordance with the invention. The shape that can be seen in the figures means that, as shown in FIG 10 air flowing from bottom to top will first flow along the rear of the housing 10 towards the central area. Here this air will meet the air flowing vertically upwards through the cooling air ducts, which has a relatively high speed due to the design of the ducts and the resulting so-called Venturi effect. Ultimately, this means that an outwardly directed air turbulence is created above the luminaire housing 10 on both sides of the central receiving area 20 for the operating device. This not only ensures a particularly efficient dissipation of heat to the ambient air, but also helps to prevent dust or dirt particles from settling on the surface of the lamp housing 10 . Any necessary cleaning cycles for the lamp 1 can thus be extended or lengthened, which is advantageous in that the lamp 1 is usually not readily accessible due to its intended use and the resulting assembly.

Finally, the already mentioned suspension bracket 150 will be explained or illustrated in more detail to what extent the lamp housing 10 is designed in an advantageous manner in order to enable simple assembly or suspension of the lamp 1 .

The bracket 150, which is shown in isolation in FIG. 17, here has the shape of a wide open, angled V, with a short central region 151 being provided, on both sides of which inclined arms 152 extend. These arms 152 and the central area 151 have a wide variety of through bores or openings 153, 154, which enable the attachment of different suspension elements. Merely as an example, it should be mentioned here that the openings 153 provided, for example, in the middle of the central region 151 could be used to anchor simple suspension cables here. The symmetrically designed side arms 152 , on the other hand, could be used for attaching corresponding carabiners or other suspension hooks, which then run together in a Y-shape on a chain (not shown) that is used to suspend the lamp 1 . If the openings 154 on the side arms 152 of the suspension bracket 150 are used, the lamp 1 can be coupled at four points with corresponding suspension cables, which ultimately leads to a somewhat more stable mounting of the lamp 1.

A special feature of the solution shown is that the suspension bracket 150 can be connected to the lamp housing 10 without tools. For this purpose, the lateral arms 152 have hooks 155 that are bent over at their end regions, with each end region having two hooks 155 that are separate from one another.

On the back of the lamp housing 10, four fastening areas 17 are distributed for this purpose, wherein on the opposite areas of the housing base 11, respectively

two fastening areas 17 are formed, which are each arranged symmetrically to a longitudinal axis of the housing 10 or on both sides of the central receiving space B. A corresponding web 15 is provided on each fastening area 17, which bridges a total of three cooling fins 14 in the exemplary embodiment shown in Figure 16, but is spaced apart from the housing surface on its underside, so that through-openings are formed, which represent integrally formed suspension eyelets 16 of the housing 10, into which the hooks 155 of the mounting bracket 150 can engage. This measure is also advantageous in that the coupling of the fastening bracket 150 to the housing 10 does not result in openings being created in the housing 10 which lead to the sealed areas of the interior of the lamp and accordingly would have to be additionally sealed. Instead, the back of the housing 10 remains completely closed.

The brackets 150 themselves have a certain flexibility, so that they can be coupled to the housing 10 without tools. In particular, this can be done by first hooking the hooks 155 of a wing 152 of the bracket 150 into the corresponding eyelets 16 on the housing 10 . By exerting pressure on the clip 150, it can be spread apart so that in the next step the opposite hooks 150 can also snap over the corresponding web 15 on the rear side of the housing. This enables the fastening bracket 150 to be hung in in a simple manner.

In order to ensure that the bracket 150 can snap out of the anchorage by unwanted pressure or other effects, screws 160 are provided as additional security measures, which are screwed into corresponding openings on the lateral wings 152 of the bracket 150. However, these screws 160 interact exclusively with the bracket 150 itself and, as can be seen in FIG. However, there is no provision for cooperation with the housing 10, which in turn would require undesired openings in the housing 10 itself. The screws 160 are therefore used exclusively for blocking a lateral migration of the retaining bracket 150. As an alternative to the screws 10 shown, other blocking elements such as pins, bolts or the like could also be provided, which prevent the bracket 150 from migrating in an analogous manner.

The measures described thus contribute overall to the fact that a lamp is created which, as desired, is able to generate and emit light with high intensity, although compared to previously known solutions, better protection of the housing and of the components it absorbs is achieved.

Another advantage of the solution according to the invention, which should be emphasized at this point, is that all relevant components of the lamp are assembled from one direction, namely from the underside or the light emission side of the housing. This applies both to the arrangement of the seals and to the installation of the lamps, the operating components for operating the lamps and any connecting lines for the power supply of the lamps. In principle, all these components are inserted into the luminaire housing from the same direction, without the need for additional work from the rear. This is advantageous in that it means that the housing does not have to be turned during assembly of the luminaire, which opens up the possibility of largely or even completely automating the assembly process. The light according to the present invention is not only characterized by its already described advantageous properties in terms of light emission properties, heat dissipation and resistance to external influences, but also has the advantage that the light is relatively easy to assemble can.

The concept according to the invention can also be extended to other shapes or sizes for the lamp in a simple manner. In particular, there is the possibility that

The number of chambers or rooms for accommodating operating devices or lamps can be expanded as required. One possibility would be, for example, to implement a housing that has a total of four receiving areas for lamps and two possibly interconnected receiving areas for operating devices. Ultimately, this essentially corresponds to a doubling of the inventive concept shown in the figures, it only being necessary to provide the housing as a whole in the elongated form. All other components could then be used in the manner described above, regardless of the number of recording areas used. In the example described, two identically designed holding elements with corresponding optical covers and cover elements are used, which are then arranged one behind the other in the longitudinal direction.

Claims (10)

Expectations 1. Tub-shaped lamp housing (10), having: * a housing base (11) and * a housing wall (12) running laterally around the housing base (11), which delimits a lamp space with the housing base (11), characterized in that the housing base (11) has at least one flat area (25) for preferably flat accommodation of at least one light component, and in that all surface areas of the light housing (10) which form the outer surfaces of the light housing (10) are designed in such a way that they in an assembled state of a lamp (1) using the lamp housing (10), allow a liquid to flow off via the outside of the housing wall (12) and/or an opening (30) formed in the lamp housing (10). 2. The light housing according to claim 1, characterized in that the housing base (11) has, in addition to the flat receiving area (25), a further area (20) for receiving a light component, with at least one preferably several arranged one behind the other between the two areas (20, 25). elongated openings (30) are formed. 3. Lamp housing according to claim 2, characterized in that the one or more areas (20, 25) for receiving lamp components are each surrounded by a ring-like channel (36) which is or are designed to receive a seal (40). 4. Lamp housing according to claim 3, characterized in that on the housing (10) a connecting channel (24) is formed, which connects the two receiving areas (20, 25) to one another without interrupting the ring-like channels (36). 5. Lamp housing according to one of the preceding claims, characterized in that on the back of the housing (10) cooling fins (14) are formed. 6. Lamp housing according to one of the preceding claims, characterized in that those outer surfaces of the housing (10) which form the back of the housing (10) in the mounted state of a lamp housing (10) using lamp (1) inclined and / or cambered are trained. 7. Luminaire housing according to one of the preceding claims, characterized in that on the rear side of the housing base (11) integrally formed with the housing (10) suspension eyelets (16) are provided, which allow the hanging of suspension elements (150). 8. Light having a light housing (10) according to any one of the preceding claims and a light source (130), characterized in that the light source (130) is accommodated areally on the planar region (25). 9. Light according to claim 8, characterized in that the flat area (25) is surrounded all around with a seal (40), wherein the light (1) further has: * a cover (70, 80), which stretches over the area (25) and is closed all the way around the seal (40) in order to form a closed space (B) with the light housing (10), the cover (70 , 80) has an optical system for influencing the light of the lighting means (130), and * a frame-like holding element (50), the holding element (50) being connected to the lamp housing (1) in such a way that it presses the cover (70, 80) into contact with the seal (40). 10. Light according to claim 9 and with the features of claim 2, characterized in that the light (1) further comprises a cover element (100) which spans the further receiving area (20) and can be fastened to the holding element (50), in particular with this is screwed. 13 sheets of drawings