EP3366981B1 - Lamp recess for forming a luminaire casing - Google Patents

Description

The present invention relates to a lighting pan, which is intended to form a closed luminaire housing together with a translucent cover. Furthermore, the invention relates to a luminaire housing for a luminaire, wherein the luminaire is in particular a so-called wet room luminaire.

Moisture-proof luminaires are luminaires that are used in environments in which u.a. An increased humidity may be present. It may therefore be, for example, work halls or garages and areas that are not completely closed to the outside. In this case, since the intrusion of dirt or dust and especially moisture into the interior of a luminaire should be avoided to avoid damaging the electronic components that are responsible for the light generation, the luminaires must be suitably sealed from the environment , In this context, so-called. Protection classes are defined, which set depending on their class certain requirements for the sealing of the lamp housing.

A closed luminaire housing usually consists of at least two components, on the one hand a responsible for the light output cover and on the other hand to be connected to the cover so-called. Light well. At least the luminaire pan is in this case usually designed pot or trough-like to create a receiving space in which then sealed against the environment, the other components of the lamp, in particular those components that are responsible for the light generation, can be arranged. While for manufacturing reasons, lamp trays are often realized in the form of correspondingly punched and bent sheet metal parts, this possibility for realizing a moisture lamp rather not because such made of sheet metal housing can be sealed very expensive compared to the environment. For this reason, luminaire trays for damp-proof luminaires are preferably made of plastic and in this case are used in particular Injection molding process produced, since in this way an integrally executed and thus closed lamp tray can be realized.

At the same time, however, a corresponding light well must also be designed such that it allows arranging and fixing the other components in the receiving space. However, such measures often lead to the housing produced by injection molding still needs to be processed in addition to provide the necessary mounting options.

From the EP 1 004 816 A1 a luminaire is known, whose luminaire housing has ribs protruding into the interior, with the aid of which a releasably mounting of a luminous means-carrying carrier element is made possible. The ribs are in this case provided with bores, which allow a screwing of the carrier element. Also the WO 2014/064282 A1 as well as the EP 2 918 904 A1 show luminaire housing with integrated ribs, which serve the detachable storage of a device carrier.

The present invention is based on the object to provide a novel way to realize a light bulb, which can be easily manufactured and, in spite of all, opens up the possibility to fix the additional components of the light in the interior in a simple manner.

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

The light box according to the invention is characterized in that are provided for releasable support, in particular a support member for light emitting units in the interior of the light bulb protruding ribs. These extend integrally from the corresponding side walls of the luminaire pan, so that they can be made in a simple manner. At the same time, these ribs allow easy insertion and possibly removal of a carrier element for the lamp units, wherein at least two different types of ribs are present, which have differently shaped latching recesses which fix together the carrier element in a predetermined position. According to the invention, therefore, a luminaire trough is proposed, which is designed to be connected to a translucent cover to form a closed luminaire housing, wherein the luminaire trough has in its interior projecting ribs, which are designed for releasably holding a support member for lamp units, wherein at least two different types of ribs are present, both of which each have a latching recess provided for the carrier element, wherein the latching recesses of the different rib types are designed differently and wherein the latching recesses jointly fix the carrier element in a predetermined position. Preferably, in this case, the ribs are arranged on two opposite side walls of the lamp pan.

According to a preferred embodiment, provision can be made in particular for the ribs of a first type to fix the carrier element in at least one first direction and for the ribs of the second type to fix the carrier element in a second direction substantially perpendicular to the first direction. The appropriate choice of ribs facilitates the insertion of the support member into the lamp housing, which is then fixed in spite of everything in the desired position.

It may further be provided that at least a part of the ribs has recesses for latching a cable holder. Such elements are, for example, then advantageous if along the lamp housing cables - eg. For a through-wiring - to be stored. Here too, the ribs of the luminaire pan according to the invention are thus deliberately designed such that a correspondingly defined bearing of the cables can be achieved solely by the engagement of corresponding cable holders, without these having to be attached to the luminaire pan in an expensive manner by additional fastening measures.

According to a further advantageous embodiment, it may further be provided that at least a part of the ribs has additional passage openings. These can also be used to further elongate components along the Luminaire housing to lay or additional components to attach to the ribs.

Often have light housing on their outer sides due to appropriate regulations symbols such as warning symbols and the like. These are usually applied to this after production of the lamp pan, for example. In the form of embossing or printing or sticking. In all cases, however, additional steps are required to realize the symbol on the outer surface of the lamp housing.

According to a particularly preferred embodiment, it is therefore provided to make the warning symbol on the outer surface of the lamp pan such that it is formed by a plurality of step-like mutually offset surface sections. Such a symbol, which, for example, can represent a lightning-warning lightning bolt, can then be created in an efficient manner by means of injection molding in the context of manufacturing the lamp trough. This special, inventive design of the warning symbol leads to the fact that, despite everything, the luminaire pan after injection molding in a simple manner from the injection mold can be removed from the mold. Thus, the effort to realize a lamp is reduced again overall.

In order to be able to form the desired sealed luminaire housing together with a cover, the luminaire trough according to the invention may preferably have a circumferential sealing channel, wherein a seal is arranged in the bottom area of the sealing channel. In this case, it can be provided, in particular, that an outer wall of the sealing channel has latching recesses facing the channel, which then interact in a corresponding manner with latching projections of the cover. Furthermore, an inner wall of the channel can have recesses lying opposite the latching recesses. This measure, in turn, facilitates the subsequent removal of the trough from the tool after the luminaire trough has been produced by means of injection molding.

In order to supply power to the components inside the luminaire, external power supply cables must be routed inside the luminaire housing. Thus, luminaire trays often have one or more areas which are broken out of the trough to form feedthrough openings. Such areas are also provided in the luminaire trough according to the invention, wherein according to a particularly preferred embodiment at least one of these areas is formed centrally in a bottom surface of the luminaire trough. Usually, such areas are provided on the end surfaces or in the end regions of the bottom surface. In the case of the luminaire trough according to the present invention, corresponding areas for forming feed openings may also be provided at these locations, in addition, however, a corresponding area is now also centrally or centrally located provided, which opens up a greater flexibility in supplying the lamp with power and thus when positioning the lamp. The luminaire tub can, for example, consist of PC or PMMA. In the case of the use of PMMA, a translucent design of the lamp pan would result, which can possibly be used to achieve additional lighting effects in the context of a secondary light output.

According to the invention, a luminaire housing is also proposed in particular for a damp-proof luminaire, wherein the housing is formed by a luminaire tub of the type just described as well as a cover to be connected to the luminaire tub. In this case, it may be provided, in particular, that the cover and the tub each consist of the same material. Such, preferably sorted realization of both housing parts made of the same material leads to the advantage that no temperature difference between different housing components is to be feared. This effect could possibly lead to shifts, which can adversely affect the functionality of the seal and the locking. However, such problems are avoided in the preferred embodiment in that both housing components are made of the same material and accordingly expand or contract in a similar manner.

In a luminaire according to the invention which has a luminaire housing of the type just described, it can furthermore preferably be provided that means for generating light are arranged in the luminaire housing. These can be arranged in particular on a device carrier, which is releasably locked to the lamp pan. In this case, the device carrier may have light passage openings, which allow passage of light from a region of the housing, in which the means for generating light are arranged, in a region of the device carrier opposite the means for generating light. This can then be used in the event that the light sump is at least partially translucent, although primarily to emit the light generated by the bulbs on the cover, but to enter a portion of the light in the opposite region of the housing and then over to radiate the housing pan.

Figuren 1 und 2

Ansichten einer sogenannten Feuchtraumleuchte, bei der ein erfindungsgemäßer Geräteträger zum Einsatz kommt;

Figur 3

eine Stirnansicht der Feuchtraumleuchte;

Figur 4

eine Schnittdarstellung der Feuchtraumleuchte;

Figuren 5 und 6

Ansichten einer für die Lichtabgabe verantwortlichen Abdeckung der Feuchtraumleuchte;

Figur 7

eine vergrößerte Ansicht des Stirnbereichs der Abdeckung;

Figuren 8 und 9

Ansichten der für die Befestigung der Abdeckung an der Leuchtenwanne verantwortlichen Rastbereiche;

Figuren 10 und 11

Ansichten der Leuchtenwanne der Feuchtraumleuchte;

Figur 12

eine vergrößerte Ansicht des Endbereichs der Leuchtenwanne;

Figur 13

den für die Verrastung mit der Abdeckung verantwortlichen Bereich der Leuchtenwanne;

Figur 14

eine Schnittdarstellung der mit der Leuchtenwanne verrasteten Abdeckung;

Figur 15

die Befestigung eines zusätzlichen Kabelhalters an der Leuchtenwanne;

Figur 16

den Kabelhalter in isolierter Ansicht;

Figur 17

einen Endbereich der Leuchtenwanne;

Figur 18

die Ansicht eines speziellen Werkzeugelements zum Erzeugen eines Warnsymbols auf der Außenseite der Leuchtenwanne;

Figur 19

eine Schnittdarstellung des mit der Leuchtenwanne verrasteten Geräteträgers;

Figuren 20 und 21

Ansichten des Geräteträgers;

Figuren 22 bis 25

Ansichten des Geräteträgers mit den darauf befestigten Komponenten für die Lichterzeugung;

Figuren 26 bis 28

Ansichten einer an dem Geräteträger zu befestigenden Primäroptik und

Figur 29

die Baueinheit bestehend aus dem Geräteträger sowie der an dem Geräteträger befestigten Primäroptik.

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

Figures 1 and 2

Views of a so-called wet room lamp, in which a device carrier according to the invention is used;

FIG. 3

a front view of the moisture lamp;

FIG. 4

a sectional view of the moisture-proof light;

FIGS. 5 and 6

Views of a responsible for the light emission cover of the moisture lamp;

FIG. 7

an enlarged view of the end portion of the cover;

FIGS. 8 and 9

Views of responsible for the attachment of the cover to the light well latching areas;

FIGS. 10 and 11

Views of the luminaire trough of the moisture-proof luminaire;

FIG. 12

an enlarged view of the end portion of the lamp pan;

FIG. 13

the area of the luminaire pan responsible for latching with the cover;

FIG. 14

a sectional view of the latched with the lamp cover cover;

FIG. 15

the attachment of an additional cable holder to the luminaire pan;

FIG. 16

the cable holder in isolated view;

FIG. 17

an end portion of the lamp pan;

FIG. 18

the view of a special tool element for generating a warning symbol on the outside of the lamp pan;

FIG. 19

a sectional view of the latched with the lamp tray device carrier;

FIGS. 20 and 21

Views of the device carrier;

FIGS. 22 to 25

Views of the equipment carrier with the components for light generation attached thereto;

FIGS. 26 to 28

Views of a to be fastened to the equipment carrier primary optics and

FIG. 29

the assembly consisting of the equipment carrier and attached to the equipment rack primary optics.

In the Figures 1 and 2 are first two perspective views of a generally provided with the reference numeral 1 wet room light shown, which is therefore intended in particular for use in areas where, inter alia, an increased humidity may be present. The luminaire 1 should thus be designed in particular such that the penetration of dust and / or moisture into the interior of the luminaire 1 is avoided. By the sealing measures described in more detail below, the luminaire 1 should then meet the requirements of the protection class IP65, ideally the class IP66.

Essential components of the luminaire 1 are a so-called luminaire trough 50, a cover 20 and a later described in more detail in the Figures 1 and 2 unrecognizable equipment carrier, which is arranged in the space enclosed by the lamp cover 50 and the cover 20 space and carries the responsible for the light generation components. The luminaire housing is thus formed by the components to be interconnected luminaire trough 50 and cover 20. These enclose an elongated receiving space for the other components of the lamp 1.

It is envisaged that the cover 20 and the lamp cover 50 are made of the same material. This represents a first special feature over previously known solutions, since due to the different requirements so far was rather intended to form the lamp pan of a first material and to form the responsible for the light output cover of a second material. As a rule, materials were used for the luminaire tub, which in particular seal the luminaire interior against external influences enabled. The cover, in turn, was made of a material that met the optical requirements for light output.

In the present case, however, it is now provided that luminaire trough 50 and cover 20 are sorted from the same material, for example, according to a first preferred embodiment may be provided that polycarbonate (PC) is used for both components. This plastic material may be both opaque and opal, then for the trough 50 preferably an opaque material is selected, while on the other hand, the cover 20 is made opal. That is, the cover 20 in this case has at least slightly light-scattering properties, resulting in a homogeneous, uniform light output.

According to another advantageous variant, it can be provided that both the luminaire trough 50 and the cover 20 are formed from polymethylmethacrylate (PMMA). It is a material that can be made crystal clear. This choice of material then leads to the fact that light can escape not only on the cover 20, but also on the also translucent executed tub 50. This can be used to lighten the housing of the lamp 1 in total or via the tub 50 an indirect light output achieve.

However, in both variants, as already mentioned, luminaire trough 50 and cover 20 are made of the same materials, which, inter alia, also has the advantage that with temperature fluctuations, both housing components 20, 50 expand or contract in the same way. This means that temperature fluctuations can not lead to a negative impact on the sealing measures described in more detail below. As a result, the sealing of the lamp 1 against external influences is further improved.

Another special feature of the lamp 1 is that apart from the sealing material described below, the sealing of the lamp interior against external influences exclusively by the two housing components (tray 50 and cover 20) is achieved and both housing components 20, 50 are designed such that they are without additional tools can be interconnected. Ideally, the cover 20 and the lamp cover 50 are made entirely of a single material (such as polycarbonate or polymethyl methacrylate) without, for example, in the Connection area additional flexible materials are used, as is the case with many known solutions. This leads to a simplified production of both housing parts 20, 50, since they can be manufactured in a simple manner by injection molding as described below. On the other hand, the elimination of additional connection and sealing measures requires a special interaction of both housing components 20, 50 in the connection area in order to achieve the desired connection and sealing.

In this context, the design of the cover 20 with the measures provided for connection to the lamp pan 50 intended to be described in detail will be described in detail below. This should be especially based on the FIGS. 5 to 9 respectively.

The FIGS. 5 and 6 show first the complete light cover 20 in a perspective view, on the one hand from the inside ( FIG. 5 ) as well as from the outside ( FIG. 6 ). The cover 20 in this case has an elongated, dome-shaped shape and is smooth on their outer surfaces. Cleaning the light emitting in the first place responsible responsible surfaces of the lamp 1 is thereby significantly facilitated. The risk of accumulation of dirt particles on the surface of the lamp 1 is reduced.

On the inside of the dome shape, on the other hand, the cover 20 is provided with light-refracting structures over its substantially entire area, in the illustrated embodiment with ribs 24 extending in the longitudinal direction. These may, for example, have a prism-like, triangular in cross-sectional shape, in order to influence the light emitted via the cover 20 in the desired manner in the transverse direction. However, other prismatic structures (e.g., matrix-like) could also be used here. It should be noted, however, that these refractive structures 24 are only optically effective if the material of the cover 20 has no or at least only slight light-scattering properties. That is, these structures 24 are primarily used in the variant in which the cover 20 is formed of PMMA.

The shape of the cover 20 is chosen such that it is designed approximately trapezoidal both in a section perpendicular to the longitudinal direction and perpendicular thereto. In this case, however, the bottom surface 21 is curved in the areas of the side walls 22 and the end faces 23 via. This shape leads to an increased mechanical stability of the cover 20, avoids sharp edges on the outside of the cover 20, which adversely affect the light output and in turn facilitates cleaning of the surfaces responsible for the light output. The bottom surface 21 may in this case as the representations of FIGS. 3 and 4 can be removed slightly concave, whereby the light output can be additionally influenced in the desired manner.

The responsible for the locking of the cover 20 with the lamp cover 50 and for the sealing of the lamp housing components can in particular the FIGS. 7 to 9 be removed.

Here, it is initially apparent that the sloping outward side walls 22 and end faces 23 of the cover 20 merge into a circumferential web 26, which is aligned approximately perpendicular to the plane of the bottom surface 21 and should engage in a sealing channel of the lamp well 50 described in more detail below. This uninterrupted over the entire circumference extending web 26 should then provide in cooperation with a recorded in the sealing channel sealing material for the actual sealing of the lamp interior.

In addition, however, the cover 20 also has a splash guard edge 25 projecting at right angles to the outside from the upper edge of the sealing web 26, which in particular is in FIG FIG. 7 is recognizable. This covers in the assembled state of the lamp housing the sealing channel of the lamp pan 50 and thus prevents any force acting directly on the sealing area influence of spray or the like. The risk of a dynamic pressure acting on the seal is thus avoided. This is a supplementary protective measure that does not prevent the fundamental penetration of moisture into the interior of the lamp (this is to be achieved by the interaction of seal and sealing web 26), by which, however, an additional protection of the lamp 1 is achieved.

Also, this splash guard edge 25 preferably extends fully over the entire outer circumference of the cover 20, but is interrupted at individual points. These are those points at which the latching regions 30, which enable a tool-free locking of the cover 20 with the lamp pan 50, are provided. Several of these latching areas 30 are uniformly distributed over the circumference of the cover 20, wherein a single latching area in the FIGS. 8 and 9 is shown enlarged.

In this case, the latching region 30 in particular has a web-like latching projection 31 which is provided on the outer circumference of the sealing web 26 and which engages on its Bottom supported by two trapezoidal support webs 32. This latching projection 31 with the support webs 32 is then intended to engage in a corresponding latching recess of the lamp pan 50. However, in order to enable release of the latching between the cover 20 and the luminaire trough 50 at a later time, a rectangular opening 28 is provided above the latching projection 31 in the splashguard edge 25, via which access to the latching projection 31 is made possible. So here is an interruption of the splash guard edge 25, which allows the subsequent release of the locking between the cover 20 and the lamp cover 50.

At the same time, of course, there is the danger that penetrates through this interruption in the splash guard edge 25 water in the sealing region of the lamp housing. To prevent this, two additional, vertically extending webs 29 are provided, which extend from the end regions of the opening 28 down to the latching projection 31. These webs 29, which have a smaller depth than the latching projection 31, lie in the latched state of the lamp housing on both sides of the locking recess described in more detail below on the wall of the lamp pan 50, so that although splash water can penetrate into the region above the latching projection 31, Here, however, then not penetrate further into the connection area, since this area is completely enclosed by the corresponding wall of the housing tray and by the webs 29 and the latching projection 31. The webs 29 and the locking projection 31 accordingly bridge the opening 28 splash guard edge, so that a total of a completely circumferential splash guard in the region of the connection between the cover 20 and trough 50 is achieved.

Furthermore, a further web 27 is provided on the inside of the sealing edge 26 on both sides of the latching regions 30. These additional webs 27 support the interaction of the latching regions 30 of the cover 20 with corresponding latching means of the tub 50, which will be explained in more detail below.

In addition to mention is, moreover, that the circumferential splash guard edge 25 in addition to their actual, described above function of protection against water spray also serves as a stacking aid. That is, a plurality of lamp covers 20 of the type shown can be stacked on each other in a simple manner, with a cover 20 then rests with the lower edge of the sealing web 26 on the splash guard edge 25 of the underlying cover 20. This facilitates storage and transport of the cover 20. Furthermore, the shape of the Cover selected so that it can be produced as already mentioned in a simple manner in the context of injection molding.

The design of the lamp cover 50 can the FIGS. 10 to 17 and 19 are removed, wherein the following for the sealing connection of the tub 50 with the cover 20 essential features are to be explained below.

In this case, the luminaire trough 50 initially has a pot-shaped or trough-like configuration and essentially corresponds in terms of its dimensions to the dimensions of the cover 20. Cable troughs explained later on can be implemented on the bottom surface 51 and the end faces 53, via which the electronic components are located inside the lamp 1 are connected to external power supply lines.

The two side walls 52 and the end walls 53 of the lamp cover 50 in this case comprise a cover 20 facing the opening, wherein according to the enlarged view of FIG. 13 the lamp pan 50 is double-walled in this region of the opening. Strictly speaking, according to the sectional view according to FIG. 14 the side and end walls 52, 53 initially extended by a first web 62. Furthermore, the trough 50 is laterally expanded by a second, angled running web 61, wherein this second outer web 61 then extends substantially parallel to the inner web 62, but this slightly surmounted. In this way, a completely the opening of the tub 50 comprehensive sealing channel 60 is formed, the outer wall is formed by the web 61 and the inner wall by the web 62 and having a seal 63 in its bottom portion. Preferably, this seal is foamed after making the tub 50 in the channel 60 or introduced by alternative methods and then forms a contact surface for the lower edge of the sealing web 26 of the cover 20. This engages over the entire circumference of the channel 60 of time in this and effected by their attachment to the seal 63 that the interior of the lamp housing is protected from dust and / or moisture.

A reliable mounting of the cover 20 on the illuminated tub 50 is achieved by latching portions 65, which increases in the representation according to FIG. 13 are recognizable. These latching areas 65 are formed in that the outer web 61 has a thickening 66, which faces the interior of the sealing channel 60 and has a latching recess or latching recess 67. However, this recess 67 penetrates only the thickening 66, but not the entire outer Bar 61. The housing of the tub 50 is thus closed in this area to the outside.

The positioning of the latching regions 65 corresponds to the arrangement of the previously described latching regions 30 of the cover 20. When assembling the lamp cover 50 with the cover 20 so engage the locking projections 31 in the associated recesses 67 a. The provided on the underside of the locking projections 31 angled support webs 32 in this case form a run-on slope, which cause a lateral emigration of the outer web 61 when placing the cover 20 on the trough 50. As a result, an assembly between the tub 50 and cover 20 is facilitated.

After the cover 20 has been sufficiently introduced into the sealing channel 60 with the sealing web 26, the locking projections 31 and webs 32 fully engage in the corresponding recesses 67 of the lamp pan 50 and the outer web 61 can migrate back to the original position. As a result, a reliable and stable support between cover 20 and tray 50 is ensured, wherein the dimensions of the components responsible for the latching as already mentioned are selected such that the lower edge of the sealing web 26 of the cover 20 in abutment against those provided in the bottom region of the channel 60 Gasket 63 passes and thereby the desired protection of the interior of the lamp housing is achieved.

As further based on FIG. 14 can be seen, in this assembled state then also the circumferential splash guard edge 25 of the cover 20 on the end face of the outer web 61, in addition to the internal seal to ensure the already discussed splash guard and the penetration of larger particles in the region of the seal avoid. Openings only exist through the recesses 28 of the splash guard edge 25 in the region of the individual latches. These openings are required in order to allow a loosening of the latch between the tub 50 and cover 20 at a later time again. However, as already mentioned, the corresponding spaces are then enclosed by the lateral webs 29, which abut against the outer web 61 of the trough 50 from the inside, and by the latching projection 31. In this area entering liquid or dirt particles can not easily get into the sealing channel 60.

This defined interaction between the latching portions 30 of the cover 20 and the latching portions 65 of the tub is further supported by the fact that the Inner edge of the sealing edge 26 provided webs 27 in the assembled state at the channel 60 facing side of the inner web 62 of the trough 50 abut. That is, the components responsible for latching and sealing the cover 20 are defined by the additional support by means of the webs 27 defined in a certain position with respect to the cooperating elements of the tub 50 held.

A loosening of the latching between the cover 20 and the lamp pan 50 then takes place in that over the opening 28 of the splash guard edge 25, a tool, such as a flat screwdriver is introduced into the region of the latching. By twisting this tool or screwdriver can then locally the outer web 61 of the trough 50 are bent outwardly, so that the locking projection 31 can leave the recess 67. In this way, so in a very simple and intuitive way the locking between the cover 20 and the lamp cover 50 can be solved again. As already mentioned, this is only possible with the help of an appropriate tool, which is usually available at any time. In this case, prevent the webs 29 and the locking projection 31 also that when inserting the tool accidentally touched the seal 63 and possibly this damaged.

Overall, in this way can thus be achieved in a simple manner, a reliable sealing connection between the cover 20 and the lamp cover 50, which, however, can be solved in case of need again without problems. It is - as in FIG. 13 recognizable - provided that the latching recess 67 opposite the inner web 62 has an opening or recess 68. Although this is not relevant for the later use of the lamp pan 50 and also for the interaction with the cover 20, it facilitates the production of the tub 50 by injection molding. By the recess 67 corresponding opening 68 namely a demolding of the lamp pan 50 is significantly facilitated after injection molding from the corresponding injection molding tool.

Other special features of the luminaire pan 50 relate to the possibilities for supplying external power supply lines and measures that allow the arrangement of components for light generation within the luminaire housing. These properties will be explained in more detail below.

With regard to the possibility of supplying external power supply lines 50, several ways to form a luminaire trough 50 Feed opening provided. These are areas 54, 55 and 56, which are initially closed after production of the tub 50, but - in the present case - have annular material weakenings, which allow the breaking or removal of circular housing sections. In this way then feed openings can be created, can be passed through the cable into the lights inside. These openings can then be sealed by appropriate additional measures such as spouts or the like.

A special feature of the illustrated lamp pan 50 is now that not normally provided as the areas for forming supply openings exclusively in the end portions of the lamp cover 50 but beyond a central cable feed is also possible. In the illustrated tub 50, therefore, corresponding areas 54 with material weakenings are initially provided centrally in the bottom surface 51 of the tub 50. In addition, additional portions 55 and 56 are formed in the end portions of the bottom surface 51 and the end surfaces 53. Depending on the type of installation of the lamp or its field of application, therefore, the supply of an external power supply cable can be adapted in a flexible manner.

Furthermore, two mutually parallel suspension channels 57 are formed at the end regions of the bottom surface 51. These allow the intervention of, for example, a clamp, which is connected to a suspension cable for suspending the lamp 1. Such brackets are already known and readily allow a cable suspension or pendulum suspension of a lamp 1. In the present case, the length of the channels 57, in which the arms of the suspension bracket then to engage, such a measure that a certain clearance for the positioning of the suspension bracket remains. This also increases the flexibility with regard to the arrangement of the lamp 1.

The just mentioned suspension channels 57 can also fulfill an additional function. Since the regions of the housing enclosing the channels 57 form linear surface sections which in particular also project beyond the curved configuration of the further outer side of the luminaire trough 50, these areas can also be used as bearing or storage surfaces, via which in turn a simple stacking is more uniform Lighting trays 50 is possible. As explained in connection with the cover 20 so this leads to a simplified storage and improved transport of the tub 50 to the place of final luminaire mounting.

Other features of the luminaire pan 50 relate to the design of the interior. It can be seen in particular that along the inner walls of the two side surfaces 52 of the trough 50 distributed ribs 70, 80 are positioned. These serve on the one hand to increase the stability of the tub 50, but in particular also the tool-free arrangement and attachment of other lighting components.

In this case, two different types of ribs are provided according to the illustrated embodiment, which are designed differently. In the illustrated embodiment, two ribs of the first type 70 and four ribs of the second type 80 are provided on one side of the tub 50. The ribs of the first type 70, which are positioned longitudinally at the second and fifth positions in the present case, will be explained below first. Of course, it would also be conceivable to vary the arrangement and the number of different types of ribs.

The shape of a rib of the first type 70 is in particular in FIG. 12 as well as in FIG. 15 recognizable. This first has a first lower portion 71 which - due to the curved outer shape of the trough 50 - has approximately the shape of a quarter-ellipse and is provided according to the illustration with a vertical first edge 72 and a horizontal second edge 73. Separated from this first section 71, a further rib section 74 is formed above the horizontal flank 73, which is designed approximately in the form of a right-angled triangle, although the hypotenuse is angled. Together with the upper edge 73 of the first rib portion 71 - and the side wall of the housing - includes the second rib portion 74 a locking recess 75, which serves to hold the device carrier described in more detail below. At its end facing the center of the luminaire trough 50, the horizontal edge 73 also has a slight elevation, by which the latching recess 75 is limited laterally.

The lower rib portion 71 has in the region of the vertical edge 72 beyond an approximately triangular further latching recess 76. This allows according to the representation according to FIG. 15 the latching of an in FIG. 16 This holder 90, which is made of plastic, for example, is generally designed approximately C-like with a central leg 91, which laterally merges into two inclined side legs 92, which in turn extend at their outer end parallel to the central leg 91 Have end portion 93. In each case an insertion 94 is provided in this end region, so that the end region 93 latched into the recess 76 of the rib 70 engages around the lower region of the rib 70. This cross-like interlocking of rib 70 and wire holder 90 results in this in the in FIG. 15 fixed position shown. Since the wire holder 90 is configured symmetrically and cooperates with the corresponding opposite rib 70 of the tub 50 in the same way, this can be locked in a simple manner in the illustrated arrangement in the lamp cover 50. In this case, feet 95 formed on the underside of the central region 91 support the wire holder 90 on the bottom surface of the trough 50. Accordingly, cables can be laid between this bottom surface and the wire holder 90, which are supported by a plurality of fixed in the tray 50 wire holder so that they extend along the bottom surface of the tub 50 and not affect the further arrangement of additional components in the lamp housing.

In the illustrated configuration, the corresponding recesses 76 are provided for supporting the wire holder 90 in the ribs of the first type 70. Of course, corresponding recesses could, however, also be provided additionally or alternatively in the subsequently described ribs of the second type 80. The number of wire holders 90 to be used can hereby optionally be increased, which makes sense depending on the length of the lamp 1.

A release of the locking between the wire holder 90 and the lamp pan 50 can be achieved in a simple manner by pressing or pulling on the central region 91 of the holder 90. Due to the flexibility in this case, the end portions 93 of the wire holder 90 are pulled slightly inward, so that the latching with the corresponding rib 70 is released.

Furthermore, it is provided that the ribs of the first type 70 laterally offset from the latching recess 76 have a passage opening 78. This may optionally be used to carry additional cables or lines, if desired. Again, such an opening 78 could optionally also be provided in the ribs of the second type 80.

The shape of the ribs of the second type 80 can also FIG. 12 be removed. These consist primarily of a lower portion 81, which has a straight vertical edge 82. As already mentioned, could in this lower rib portion 81 recesses or openings corresponding to the Recess 76 and the opening 77 of the ribs of the first type 70 may be provided.

The upper end of this lower rib portion 81 is provided with a triangular projection 83 which, in turn, defines - with the side wall of the tub 50 - a detent recess 84. In contrast to the recess 75 of the first rib 70, however, the latching recess 84 is not limited to the top, since here the rib 80 is continued only by a narrow web 85.

Further ribs 88 are also provided on the end-side end portions of the lamp pan 50. These interior facing ribs 88 (see FIG. 11 ), however, extend only over the height of the inner web 62 of the sealing channel 60 and are oriented perpendicular to the arranged on the longitudinal sides of the trough 50 ribs of the first and second types 70 and 80, respectively. Among other things, they also support a stacking of a plurality of similar lighting trays 50.

The function of the previously explained ribs 70, 80 and 88 in connection with the attachment of the device carrier will be explained below. Previously, however, based on the FIGS. 17 and 18 briefly another special feature of the lamp tray 50 described. This has on the outside at least one in FIG. 17 recognizable warning symbol 250 with a lightning warning in the present case 251 on. In principle, there are, of course, various possibilities for attaching this warning symbol 250 on the outside after the luminaire trough 50 has been produced. It would be conceivable, for example, a corresponding embossing of this symbol 250 or, of course, a gluing or printing the light bulb 50. In the present case, however, provided that the symbol is created simultaneously during injection molding during the production of the tub.

For this purpose, a special slide used in the injection molding tool is provided, which in FIG. 18 is shown and provided with the reference numeral 300. In this case, use is made of the circumstance that the illustrated triangular-shaped symbol 250 with the flash 251 contained therein can be realized by the use of a tool region with surface regions 301, 302 and 303, which are designed to be staggered relative to one another. The first surface region 301, which forms a first part of the inner region of the triangle, is thus adjoined by the second surface region 302, which has the shape of the flash 251 and is slightly raised in relation to the first region 301. The triangle is finally completed by the surface area 303, which in turn is increased to the second area 302. These special design of the slider 300 has the consequence that in the injection molding process the symbol 250 - with then corresponding stepwise offset surface areas - can be applied directly to the outside of the lamp cover 50, despite all, however, a subsequent demolding of the tub 50 is possible. In this way, so the goal can be achieved in a very simple and elegant way to produce the lamp tray 50 exclusively by injection molding and to avoid subsequent additional steps.

The third essential component of the moisture-proof light 1 is the already mentioned equipment carrier 100, which is initially in the FIGS. 20 and 21 is shown. It is an elongated sheet metal part to which the responsible for the generation of light components of the lamp 1 are to be mounted. A central, plate-shaped region 101 is in this case elongated and dimensioned somewhat shorter than the actual length of the lamp 1. On both sides of the plate-shaped portion 101, the device carrier 100 profiled side legs 102 which are bent in their end portions 103 U-shaped.

The configuration of these profiles or the side legs 102 can, for example, the representation in FIG. 24 be removed. It allows latching with the lamp cover 50, which in this case then in the locked state, the in FIG. 19 recognizable arrangement results. It can be seen how the U-shaped bent end regions 103 of the side legs 102 of the device carrier 100 interact with the latching recesses 75 and 84 of the ribs 70 and 80, respectively. In particular, it can be seen that the second upper rib portion 74 of the first type rib 70 forms a limit stop for the end portions 103 in a direction perpendicular to the plane of the opening of the housing pan 50. The projections 83 of the ribs of the second type 80, in turn, form a lateral boundary for the side legs 102. Thus, both rib types 70, 80 fix the side limb 102 primarily in one direction, wherein both directions are substantially perpendicular to one another, so that the device carrier 100 is fixed in the desired position on the housing pan 50 in total. The shaping of the corresponding projections or ribs in this case facilitate the insertion of the U-shaped bent and thus a certain flexibility end portion 103 into the recesses 75, 84 of the ribs 70, 80, so that a simple insertion of the device carrier 100 in the housing tray 50 is made possible , However, this latching can also be released manually, provided that replacement or removal of the device carrier 100 is desired for maintenance purposes.

The device carrier 100 serves to hold both the light source units responsible for the generation of light, in the present case a plurality of LED boards 130 and opposite the positioning of further, responsible for the power supply of the LED boards 130 components. These are corresponding operating devices 140, 141 and connecting terminals 142, 143, which are then connected via cables not shown in detail with the power supply lines led into the lamp interior or lead from the operating devices 140, 141 to the LED boards 130.

Both the LED boards 130 and the components 140 to 143 responsible for the power supply are thus held by the equipment carrier 100, the components being positioned on both sides of the plate-shaped area 101. It is provided that on the side of the plate-shaped portion 101, on which the LED boards 130 are arranged, frusto-conical spacers 110 are formed. These spacers 110 form elevated contact surfaces for the LED boards 130, so that these - such as in the FIGS. 24 and 25 recognizable - have a certain distance h to the surface of the plate-shaped portion 101.

This illustrated spaced arrangement of the LED boards 130 has several advantages.

On the one hand, there is only a very weak direct thermal coupling between the LED boards 130 and the operating devices 140, 141. Both components - ie LED boards 130 and operating devices 140, 141 - generate heat during operation of the luminaire 1, wherein in the case of excessive thermal coupling there would be a risk that the heat would be transferred to the other component and ultimately too high , temperatures not suitable for operation, which could possibly lead to damage. The spaced arrangement using the spacers 110 now leads as far as possible to a thermal decoupling between the components, so that this danger is avoided.

A further advantage is that fastening measures, for example for the LED boards 130, do not lead to impairments in the arrangement of the further components on the opposite side of the device carrier 100. As in particular the representation of FIG. 25 can be removed, it is provided to screw the LED boards 130 to the device carrier 100. The spacers 110 in this case each have at their upper, flat support portion 111 holes or generally openings 112, which allow the passage of a screw 115. This screw 115 would penetrate without the spacers 110, the plate-shaped portion 101 of the device carrier 100 and protrude on the opposite side. Here it would then possibly hinder the arrangement of the operating devices 140, 141 or the like, which now no longer represents a problem due to the use of the spacers 110 according to the invention. In the same way, attaching the terminals 142, 143 with corresponding latching pins which penetrate the plate-shaped area 101 of the device carrier 100 does not lead to impairment of the arrangement of the LED boards 130. The available area of the plate-shaped area 101 can therefore be efficient be used to arrange components for light generation.

The spacers 110 are preferably an integral part of the device carrier 100. This is generally formed by a suitably punched and formed sheet metal part, in which case the spacers 110 are formed by stamping and embossing of the corresponding area. Ideally, the spacers 110 are, as already mentioned, frustoconical with a flat bearing surface. They are also designed curved in two mutually perpendicular planes, whereby their stability is increased, so that the LED boards 130 are stored reliably and stably. A stable storage of the boards 130 is thereby also supported that the spacers 110 as in particular in FIG. 21 recognizable in the longitudinal direction of the device carrier 100 are alternately offset from each other. A single board 130 should rest on at least three spacers 110, whereby a defined storage is achieved. Of course, the spacers 110 could of course also be provided alternatively or additionally on the opposite side of the device carrier 100 and accordingly allow an arrangement of the operating devices 140, 141 spaced from the plate-shaped region 101.

The fixing of the boards 130 to the equipment carrier 100 is effected, as already mentioned, preferably by means of screwing, the board 130 being mounted on at least three spacers 110. It is preferably provided that the board 130 - seen in the longitudinal direction - is fixed centrally, is mounted at the two end portions with a certain play. This can be realized, for example, by virtue of the fact that the circuit board 130 has a circular hole for screwing in the center, whereas oblong holes are provided on the end regions. In the same way, however, the sequence of slot-hole slots can also be provided in the openings 112 in the bearing surfaces 11 of the spacers 110. By this measure, different longitudinal expansions due to the different types of material can be absorbed, however, due to the central fixation, the circuit board 130 is basically positioned in the desired position with respect to the device carrier 100.

During assembly of the luminaire 1, it is thus provided that first the device carrier 100 is equipped with the components responsible for generating light. It then results in the FIGS. 22 and 23 recognizable configuration, where still a wiring between the operating device 140 and the LED board 130 is performed. Since both components are positioned on opposite sides of the device carrier 100, so the connection cable must be guided over a peripheral region of the device carrier 100 from one side to the other side. For this it is provided that - as in FIG. 21 recognizable - in the front end portion of the device carrier 100, a recess 116 is formed. The operating device 140 with the LED board 130 connecting - not shown in the figures - cable is to be guided by this recess 116, wherein the configuration of the recess of a 116 or the arrangement of the LED board 130 is selected such that the Board 130 with its front end region already in the region of the recess 116 projects. In this way, it is to be avoided that the cable guided from one side to the other side of the device carrier 100 bears directly against the peripheral region of the recess 116 and, if appropriate, damage to the insulation of the cable takes place during the production of the device carrier 100 resulting burrs or sharp edges , Of course, the shape of the recess could also be otherwise chosen to achieve this purpose. In principle, however, it is desired that the cable does not come into contact with sharp edges of the device carrier 100.

As already mentioned, the device carrier 100 is preferably produced as part of a stamping / embossing process, this taking place in one operation. This approach has the advantage that the individual elements of the device carrier 100, so the spacers 110, openings, latching openings and the like. In a very precise manner aligned and positioned. This opens up the possibility to automate the device carrier 100, e.g. be equipped with the help of a robot, where appropriate provided index openings, which set used for assembly reference positions, can be introduced simultaneously with the other elements during manufacture in the equipment carrier 100.

The corresponding equipped and wired device carrier 100 is then inserted into the housing tray 50 and there snapped or snapped in the manner described above by means of the ribs 70 and 80. The front-side ribs 88 of the tub 50 in this case form a centering or guiding aid, so that a corresponding suitable positioning of the device carrier 100 in the housing of the lamp 1 is facilitated.

As already mentioned, it is provided in a special variant of the luminaire housing, that not only the cover 20 but also the housing tray 50 is designed to be translucent in order to achieve a secondary light output here. The light used for this purpose should also originate from the LEDs 131 of the LED boards 130, so that it is therefore necessary that a light transfer into the housing area is made possible, in which the operating devices 140, 141 are arranged. This is made possible in the case shown by the fact that the plate-shaped region 101 has light passage openings 117 on both longitudinal sides. The in this case oval (other shapes would of course also conceivable) executed and preferably punched out light passage openings 117 are located laterally to those areas in which the LED boards or the operating devices 140, 141 are positioned and should not be covered by these components. Scattered light or light reflected on the inside of the cover 20 can then enter via these light passage openings 117 in the region of the luminaire housing facing away from the cover 20 and be emitted here via the translucent housing tub 50. In order to increase the efficiency of the use of the light generated by the LED boards 130 while the device carrier 100 is preferably carried out reflective. For this purpose, it can either consist of a reflective material or be correspondingly reflective coated or painted.

Finally, the device carrier 110 can also be used to hold a so-called. Primary optics, which should affect the light generated by the LED boards 130 light before the actual light output through the cover 20 of the lamp 1. The use of a corresponding primary optics 150, which in the FIGS. 26 to 29 is shown is particularly advantageous if the cover 20 of the lamp 1, a material is selected, which is not very light scattering. Without the use of a light-scattering primary optics, the LEDs 131 of the LED boards 130 would then be recognizable as individual point-shaped light sources in this case, which is disadvantageous as a rule because of the desire for uniform or homogeneous light output. The illustrated primary optics is thus provided in particular for the case that the cover 20 consists of PMMA, wherein it could of course also be used in the variant in which the cover 20 is formed of PC.

In such a case, it is then provided that in the FIGS. 26 to 29 illustrated primary optics 150 to attach to the equipment rack 100. This primary optic 150 consists of a light-scattering material (for example PC), which initially causes a diffuse scattering of the light. The basic form of the primary optics 150 corresponds approximately to that of the lamp cover 20. Also, the primary optics 150 is thus designed elongated and dome-like, so that they can overlap the LED boards 130. At the front end portions of the primary optics 150 locking projections 155 are provided on both sides. These are located on each downwardly projecting webs 156 of the optics 150 and are dimensioned such that they engage from the outside in corresponding latching openings 120 of the device carrier 100. These latching openings 120 are formed in the side legs 102 of the device carrier 100.

The webs 156 of the primary optics 150 thus engage laterally over the plate-shaped region 101 of the device carrier 100, so that the latching projections 155 can engage in the recesses 120 from the outside. Over the wider circumference, the primary optics lie on the surface of the plate-shaped region 101 of the device carrier 100 and in this case engage over both the LED boards 130 and the light passage openings 117. An undesired light emission not influenced by the primary optics 150 is prevented in this way. However, if appropriate, the circumferential shape of the primary optics 150 may be selected such that a smaller, e.g. a corner region of the plate-shaped region 101 of the device carrier 100 remains free, that is not covered by the primary optics 150. In this area, for example, a status LED can be positioned, which signals the operating state of the lamp 1. To improve the visibility of such a status LED, it is advantageous if their light is not mixed as possible with the light of the actual LEDs 131, so is not scattered by the primary optics 150, which is ensured by the aforementioned measure.

To release the latching between device carrier 100 and primary optics 150, only the webs 156 need to be bent laterally so that the latching projections 155 can leave the recesses 120. An assembly consisting of equipment carrier 100 and thus latched primary optics 150 is in FIG. 29 shown. This assembly can then be used in the whole and thus in a simple manner in the manner described above in the light bulb 50. The primary optics 150 is not located in the region of the U-shaped end regions 103 of the side legs 102, so that the latching of the device carrier 100 with the tub 50 is not impaired.

Finally, there is an advantageous feature of the primary optics 150 in the illustrated embodiment is that seen in the longitudinal direction by corresponding ribs 157, which form grooves 158 in the radiating surface of the optical system 150 from the outside, is subdivided into successive segments 159. The light influenced by the primary optics 150 thus consists, before it is emitted by the actual cover 20 of the luminaire 1, of individual partial bundles which correspond to the respective segments 159 of the primary optics 150.

In the case of a uniform light output over the entire length of the device carrier 100 away, this initially only leads to an interesting lighting effect is achieved because the light is easily perceptible subdivided into individual clusters. Alternatively, however, the segment-like subdivision of the primary optics 150 can also be used to actually emit different light over individual longitudinal sections of the luminaire 1. As a result, for example, there is the possibility not only to illuminate a region assigned to the luminaire 1, ie to lighten it, but also information or instructions could be conveyed in this way. A corresponding control of the LED boards 130 could then be used to generate a time-controlled over the various segments 159 light output, for example, a moving along the light 1 running light is generated, which is a preferred direction (for example, a rescue route or the like ) signals. Also, a light output could be made in different colors across the individual segments 159 away, which is then used for example in the sense of a parking lot lighting, to represent whether a lying below the light parking lot is occupied or available.

Overall, therefore, different lighting effects can be achieved with the aid of the illustrated luminaire. The luminaire is characterized in particular by the fact that the various components can be manufactured in a simple manner and mounted accordingly.

Claims (16)

1. Lamp trough (50), which is configured to be connected to a light-transmissive lamp cover (20) so as to form a closed lamp housing,
   wherein the lamp trough (50) comprises ribs (70, 80) which project into the interior of said lamp trough and are configured for releasable mounting of a carrier element (100) for lighting units,
   characterized in that
   there are at least two different types of ribs, both of which respectively comprise a catch recess (75, 84) that is provided for snapping onto the carrier element (100),
   wherein the catch recesses (75, 84) of the different types of ribs are designed differently, and wherein the catch recesses (75, 84) jointly secure the carrier element (100) in a planned position.
2. Lamp trough according to Claim 1,
   characterized in that
   the ribs (70, 80) are disposed on two opposite side walls (52) of the lamp trough (50).
3. Lamp trough according to Claim 1 or 2,
   characterized in that
   the ribs of a first type (70) secure the carrier element (100) in at least one first direction and the ribs of the second type (80) secure the carrier element (100) in a second direction, which is substantially perpendicular to the first direction.
4. Lamp trough according to any one of the preceding Claims,
   characterized in that
   at least some of the ribs (70, 80) comprise catch recesses (76) for snapping onto a cable retainer (90).
5. Lamp trough according to any one of the preceding Claims,
   characterized in that
   at least some of the ribs (70, 80) comprise passage openings (78).
6. Lamp trough according to any one of the preceding Claims,
   characterized in that,
   on its outer side, said lamp trough has a warning symbol (250) that is formed by a plurality of surface sections which are offset to one another in a step-like manner.
7. Lamp trough according to any one of the preceding Claims,
   
   characterized in that
   it comprises a circumferential sealing channel (60), wherein a seal (63) is disposed in the base region of the sealing channel (60) .
8. Lamp trough according to Claim 7,
   characterized in that
   that the lamp trough (50) in the region of the channel (60) is double-walled, wherein an outer wall (61) of the sealing channel (60) comprises latching depressions (67) which face toward the channel (60).
9. Lamp trough according to Claim 8,
   characterized in that
   an inner wall of the channel (60) comprises latching depressions (67) which are opposite to the recesses (68).
10. Lamp trough according to any one of the preceding Claims,
    characterized in that
    it comprises regions for the formation of cable feed openings (54, 55, 56), wherein at least one of the regions is formed in the middle of a base surface (51) of the lamp trough (50).
11. Lamp trough according to any one of the preceding Claims,
    characterized in that
    it is made of polycarbonate or polymethyl methacrylate.
12. Lamp housing in particular for a wet room lamp,
    wherein the housing is formed by a lamp trough (50) according to any one of the preceding Claims and a cover (20) to be connected to the lamp trough (50).
13. Lamp housing according to Claim 12,
    characterized in that the cover (20) and the lamp trough (50) are both made of the same material.
14. Lamp (1), in particular a wet room lamp, having a lamp housing according to any one of Claims 12 and 13 and means for producing light which are disposed in the lamp housing.
15. Lamp according to Claim 14,
    characterized in that
    the means for producing light are disposed on a device carrier (100) that is snapped onto the lamp trough (50).
16. Lamp according to Claim 15,
    characterized in that
    the device carrier (100) comprises light passage openings (117), which allow light to pass from a region of the housing in which the means for producing light are disposed into a region which, with respect to the device carrier (100), is opposite to the means for producing light.

Images