DE102021103957A1 - Escape sign luminaire with escape route lighting - Google Patents

Abstract

The invention relates to an escape sign luminaire 10 with an illuminant element 300 and a support element 400 for holding illuminant element 300, as well as a light-guiding element 100, which is connected to support element 400, and an escape route symbol 120 being attached to light-guiding element 100. Furthermore, escape sign luminaire 10 has at least one escape route lighting element 200 for escape route lighting, which is connected to carrier element 400 and is designed to emit light asymmetrically, such that the light emitted by escape route lighting element 200 is radiated away from light guide element 100.

Description

The invention relates to an escape sign luminaire for displaying the direction of an escape route and for illuminating an escape route.

There are various types of escape sign luminaires, with modern and aesthetically pleasing escape sign luminaires usually having an external light-guiding element, with at least one escape sign with an escape route direction indicated thereon usually being attached to the flat sides of the light-guiding element. In escape sign luminaires of this type, light is usually coupled in from a narrow side of the light-guiding element, with this light then preferably being emitted mainly via the flat sides, so that the escape sign, together with the escape route direction shown, can be seen easily and well. Such escape sign lights with a light guide are, for example, from EP 2 648 178 B1 known.

In addition, escape sign luminaires are known from the prior art, which tend to have a box-shaped design. An example of such an escape sign luminaire is in 1 shown and provided with the reference number 1010 . Such escape sign luminaires 1010 have at least one outer surface with a translucent light emission surface 1130, with this at least one light emission surface 1130 having an escape sign symbol 1120. The light emission surfaces 1130 of such escape sign luminaires 1010 are held clamped on their narrow sides by housing components of the escape sign luminaire 1010 . In this case, illuminants are arranged inside the escape sign luminaire 1010, which emit light in the direction of the light-emitting surface 1130, so that the escape sign symbol 1120 appears illuminated and is therefore easily recognizable.

Previous escape sign luminaires without a central light guide, for example those in the 1 The escape sign luminaire 1010 shown can also be equipped with so-called ERI spots (Escape Route Illumination Spots) 1200 or escape route lighting elements 1200, which are arranged on the underside of the escape sign luminaire 1010 and are used to illuminate the escape route in the vicinity of the escape sign luminaires 1010 . Such an escape sign luminaire is in the DE 10 2011 082 844 A1 specified. The escape route lighting elements usually only illuminate the corresponding escape routes in an emergency situation, for example during a fire, while the escape sign symbol of the escape sign light is illuminated continuously, ie even in situations in which no evacuation is required.

Two ERI spots 1200 are usually used in such known escape sign luminaires 1010, with the ERI spots 1200 having adjustable lenses, so that the direction in which the light is emitted by the ERI spots 1200 can be adjusted. With these two ERI Spots 1200, light can be emitted in up to two different directions for escape route lighting. In escape route lighting, both the path pointing towards the escape sign light and the path pointing away from the escape sign light, ie the path pointing along the direction of the escape route, are usually illuminated.

The setting of the direction of the light emission of the ERI spots 1200 can be achieved by manually aligning the lenses, with the escape route to be illuminated, i.e. the direction of the light emission of the lenses, usually being set once when the escape sign luminaire 1010 is installed, and only then adjusted manually when structural changes to the building require a new escape route, for which purpose the lenses of the ERI-Spots 1200 are individually aligned, and all escape sign luminaires present in a building must also be manually adjusted.

However, the possibility of illuminating the escape route has hitherto only existed in the case of escape sign luminaires which have a box-like structure, with the light-emitting surface provided with an escape sign being kept essentially framed by the housing of the escape sign luminaire. The additional components for the escape route lighting elements can be easily accommodated by this box-shaped structure of such escape route lighting elements, with these escape route lighting elements being positionable on the underside of the escape route lighting system, i.e. below the escape sign, in order to create escape route lighting in a simple manner. Such escape sign luminaires, however, are wide and bulky due to their box-like construction, and have a structurally complicated construction.

Escape sign luminaires with an external light guide on which the escape sign is shown have not been equipped with escape route lighting elements of this type to date. Furthermore, in the case of the known escape sign luminaires—if any means for illuminating escape routes are available at all—there is no provision for dynamic adjustment, in particular by means of digital control, of the illuminated escape route, so that during operation and especially during an emergency, a quick and easy to implement change of the illuminated escape route is not possible. If, for example, there is a danger on an escape route in the previously used escape sign luminaires with escape route lighting, for example in the form of a burning stairwell, the ERI spots in the escape sign luminaire continue to illuminate the unchanged escape route that leads to this danger point. Thus, in such situations, with known escape sign luminaires, an unfavorable escape route is illuminated while safe alternative escape routes are not illuminated.

The invention is based on the object of specifying an escape sign luminaire with a light guide element and at least one escape route lighting element.

This object is solved by an escape sign luminaire according to independent claim 1 . Particular embodiments of the invention are indicated in the dependent claims.

According to the invention, an escape sign luminaire is provided which has an illuminant element—preferably consisting of at least one illuminant, in particular an LED, and a circuit board—and a support element for holding the illuminant element, as well as a light-guiding element. The light-guiding element is connected to the carrier element, with the light-guiding element having a light-coupling region formed on a narrow side of the light-guiding element, and with the illuminant element being arranged on the light-coupling region of the light-guiding element. According to the invention, the light-guiding element is designed to emit the light emitted by the lighting element and radiated in via the light coupling region via at least one flat side arranged essentially perpendicular to the narrow side of the light-guiding element, and with an escape route symbol being attached to the flat side. Furthermore, according to the invention, the escape sign luminaire has at least one escape route lighting element for escape route lighting, which is connected to the carrier element and is designed for asymmetrical light emission, such that the light emitted by the escape route lighting element is radiated away from the light guide element.

The escape sign luminaire created in this way enables the use of escape route lighting elements or ERI spots on an escape sign luminaire with a light guide or with a light guide element. The escape sign luminaire created in this way is therefore particularly slim and aesthetic, with the functionality of this escape sign luminaire also being expanded through the use of escape route lighting elements. The design for asymmetrical light emission of the escape route lighting elements also prevents the light emitted by the escape route lighting elements from being reflected on a surface of the light-guiding element, so that the escape route symbol attached to the surface or the flat side of the light-guiding element can always be read.

According to a preferred embodiment, the escape sign luminaire has a plurality of escape route lighting elements—particularly preferably two, three or four escape route lighting elements—whereby the plurality of escape route lighting elements are designed to emit light in different directions.

Such an embodiment with several escape route lighting elements allows several escape routes or escape route directions to be illuminated simultaneously, with each route to be illuminated preferably being assigned one of the escape route lighting elements for the best possible illumination.

In a further embodiment, it can be provided that during operation of the escape route lighting, only some of the existing escape route lighting elements are activated to illuminate the escape route.

What is achieved here is that only those escape route lighting elements that are provided for this purpose illuminate a path to the escape route lighting.

In a particularly preferred embodiment, it is provided that the escape route lighting elements used to illuminate the escape route, and thus the directions to be illuminated, can be selected by a user.

With such a design, the escape sign luminaire can be used flexibly, versatilely and sustainably. It is thus possible for the user to select the routes to be illuminated and not to illuminate routes which do not correspond to the escape route. An escape sign luminaire of this type is therefore particularly flexible and simple with regard to the user's individual wishes and changes to the escape route. Furthermore, with such a design, an escape sign luminaire can also be used in the long term in buildings or rooms that have changed, since changed escape routes can continue to be illuminated by appropriately adjusting the escape route lighting.

Furthermore, it can advantageously be provided that the carrier element has a side surface on its underside, with the light-guiding element being in contact with the side surface in the region of the narrow side forming the light coupling region, and with the light-guiding element preferably being arranged centrally on the side surface, with a cross-section through the light-guiding element and the side surface is T-shaped.

With an escape sign luminaire designed in this way, the escape route lighting elements can be integrated particularly elegantly, compactly and functionally into the modern and slim design of escape sign luminaires with a light guide element. In addition, this enables the escape route lighting elements to emit light in all directions around the light-guiding element, with the light emitted by the escape route lighting elements not radiating onto the light-guiding element, so that unwanted reflections, which lead to glare and/or a deterioration in the legibility of the escape route symbol, are avoided. Furthermore, the stability is increased by the cross-sectional T-shaped structure of the escape sign luminaire, with the top surface of the T-profile being able to be mounted flush on a ceiling, which is particularly aesthetic and space-saving, with the escape route symbol also being placed in a clearly visible position.

According to a special embodiment, it can be provided that the existing escape route lighting elements are arranged laterally on the carrier element, ie in particular perpendicular to the side surface, it being possible for the existing escape route lighting elements to be arranged in particular on different surfaces.

In a preferred embodiment, the escape sign luminaire is designed in such a way that the existing escape route lighting elements are arranged on the side surface of the carrier element.

With the arrangement of the escape route lighting elements on the side surface, ie on the underside of the carrier element, the escape route lighting elements can be designed in a particularly simple and functional manner, with the light emission for escape route lighting from the escape route lighting elements being directed towards the ground. Furthermore, such a design minimizes the contamination of the escape route lighting elements, in particular by dust, since the carrier element is arranged protectively over the escape route lighting elements. In addition, such an escape sign luminaire can be designed to be particularly compact and elegant, with the surfaces laterally delimiting the carrier element preferably being of smooth design.

The existing escape route lighting elements preferably each have an optical system for asymmetrical light emission, with each optical system preferably being assigned a further light source.

An escape sign luminaire is thus created which, in addition to the illuminants present for illuminating the light-guiding element or the escape route symbol, only requires an additional light source for each escape route lighting element, it being possible in particular preferably for this additional light source to be an LED. Due to the design of the optics of the existing escape route lighting elements, the light is emitted pointing away from the light guide element, so that reflections on the light guide element are avoided, which increases the readability of the escape route symbol and also prevents people from being dazzled.

In an additional development, these additional light sources, designed as LEDs, are each coupled to the circuit board. A particularly space-saving arrangement for holding the illuminants and other light sources can thus be implemented, the manufacture of which being particularly simple and inexpensive. Such a design also allows uncomplicated maintenance of the escape sign luminaire that can be carried out quickly. However, provision can also be made for these additional light sources to be arranged separately from the circuit board inside the escape sign luminaire.

According to a further preferred development, the support element has a cover, the cover comprising at least the side surface, and the light guide element preferably being an integral part of the cover, and/or the existing escape route lighting elements preferably being at least partially an integral part of the cover. The optics of the existing escape route lighting elements are particularly preferably integrated in the cover.

With such a cover, the carrier element is particularly protected against dirt, for example in the form of dust or soot deposits, and moisture, for example in the form of atmospheric moisture or spray water from sprinkler systems. The more components that are an integral part of the cover, the better the support element and the components arranged therein and the escape sign luminaire as a whole are protected from external influences. In addition ver simplifies the production and in particular the assembly of the escape sign luminaire formed in this way considerably, with a cover which has the side surfaces, the light guide element and/or the escape route lighting elements as integral components, in particular protecting the escape sign luminaire against external influences and also the manufacture, assembly and Escape sign maintenance simplified. By means of an integral construction of the escape route lighting elements, an arrangement of the escape route lighting elements that is matched as precisely as possible to the position of the other light sources can also be implemented, so that unwanted reflections, i.e. light losses, can be avoided and the escape route lighting is designed more efficiently. The integral design of the cover can be produced, for example, by a casting process, in particular an injection molding process, with multi-component injection molding processes also being conceivable. Furthermore, manufacturing methods other than casting methods are of course also conceivable.

The existing escape route lighting elements are preferably arranged on the side surface surrounding the light-guiding element, with at least one of the existing escape route lighting elements preferably being arranged in front of the at least one flat side of the light-guiding element. In particular, it can be provided that all escape route lighting elements are arranged in front of the at least one flat side, with the escape route lighting elements also preferably being arranged symmetrically with respect to the light-guiding element as the axis of symmetry. For example, in an embodiment with four escape route lighting elements, an arrangement of two escape route lighting elements in front of each of the two flat sides of the light-guiding element is suitable. In such a configuration, the escape sign luminaire is particularly compact, narrow and aesthetically designed due to the symmetry, light emission for escape route illumination in four different directions being able to be implemented at the same time.

According to another embodiment, however, the escape route lighting elements can also be arranged elsewhere around the light-guiding element, with at least one escape route lighting element being able to be arranged on the side surface in particular in front of each surface of the light-guiding element arranged essentially perpendicularly to the side surface. The existing escape route lighting elements can also be arranged symmetrically to the light guide element. In particular, in the example of four escape route lighting elements it can be provided that one escape route lighting element is arranged in front of the two flat sides and in front of the two end faces of the light-guiding element that are arranged essentially perpendicular to the side surface and connect the two flat sides.

The escape route symbol preferably indicates an escape route direction, with the escape route direction displayed being dynamically changeable. The escape sign luminaire also preferably has a control unit for controlling the dynamic change.

With such a configuration, the escape sign light can be dynamically adapted to the situation at hand, it being possible in particular to react quickly and dynamically to changes in the recommended escape route or escape route while the escape sign light is in operation. The escape route direction displayed on the corresponding escape sign lights can thus be adapted in a simple and flexible manner, it being possible in particular to react to dangers such as smoke, fire, blocked doors or the like. With an escape sign light designed in this way, the risk potential for people fleeing or to be evacuated can be reduced, so that these people can be guided out of a building faster, more efficiently and more safely.

According to a further embodiment, the escape sign luminaire is designed to variably select the escape route lighting elements used for escape route lighting, with at least one direction illuminated by the selected escape route lighting elements used corresponding to the escape route direction displayed on the escape route symbol.

An escape sign luminaire designed in this way enables the illuminated escape route to be dynamically adapted to the situation at hand. In particular, it is possible to react quickly and dynamically to changes in the recommended escape route or escape route during operation of the escape sign luminaire and in particular during operation of the escape route lighting. The selection for the escape route lighting elements used for escape route lighting can thus be adapted in a simple and flexible manner, such that the escape route illuminated by the escape sign light can be dynamically adjusted. In particular, it is possible to react to dangers such as smoke development, fire, blocked doors, or the like. With an escape sign light designed in this way, the risk potential for people to flee or to be evacuated can be reduced, so that these people can move faster and more efficiently and safely routed out of a building.

An escape sign luminaire particularly preferably has both a dynamic display of the escape route symbol and a dynamic adjustment of the escape route lighting according to the two features described above, so that these two features can interact synergistically, with at least one direction illuminated by the selected escape route lighting elements corresponding to the escape route direction displayed on the escape route symbol . With such a configuration, both the escape route direction displayed on the escape route symbol and the escape route lighting on the ground indicating the escape route direction are adjusted, so that people fleeing or to be evacuated can be guided easily, quickly and efficiently according to the changed escape route.

However, the inventive idea of dynamically adapting the escape route lighting using the escape route lighting elements is not limited to escape sign luminaires with a light guide or with a light guide element, but can also be applied to other escape sign luminaires, in particular box-shaped escape sign luminaires, which is included in the second independent claim. According to this idea of the invention, an escape sign luminaire is provided which has an illuminant element—preferably consisting of at least one illuminant, in particular an LED, and a circuit board—and a light-emitting surface. In this case, the light-emitting surface is designed to display an escape route symbol, with the escape route symbol indicating an escape route direction, and with the escape route direction displayed being variable. Furthermore, the escape sign luminaire has a control unit, which is designed to dynamically change the escape route symbol displayed on the light-emitting surface, and a number of escape route lighting elements for escape route lighting. The escape route lighting elements are designed to emit light in different directions. In addition, the control unit and thus the escape sign luminaire are designed to select the escape route lighting elements used for escape route lighting based on the displayed escape route direction, with at least one direction illuminated by the selected escape route lighting elements preferably corresponding to the escape route direction displayed on the escape route symbol.

The area illuminated for escape route lighting can thus be flexibly adapted to the current situation in a simple and rapid manner. In particular, this change in the escape route lighting elements used can take place by actuating the escape sign luminaire with digital control signals. However, it is also conceivable to control the change in the escape route lighting in some other way, for example by actuating a switch or the like.

Furthermore, in a further embodiment of an escape sign luminaire, which is designed to variably adapt the selection of escape route lighting elements used for escape route lighting, it can be provided that the light emission surface for displaying the escape route symbol is formed as a display, in particular as an e-ink display.

In such a configuration, the escape route symbol can be changed in a particularly aesthetic, flexible and simple manner. Furthermore, a particularly clear display of the escape route can be implemented in this way. However, other display methods can also be provided.

Furthermore, preferably, an escape sign luminaire, which is designed to variably adapt the selection of the escape route lighting elements used for escape route lighting, can also be characterized in that the control unit is designed to receive external control signals and, based on the received control signals, the light-emitting surface and/or the existing escape route lighting elements to be controlled accordingly.

An escape sign light formed in this way is suitable for the flexible, quick and easy adjustment of the escape route indicated and illuminated by the escape sign light, so that people can be evacuated or rescued particularly efficiently in emergencies.

• 1 Darstellung einer beispielhaften Ausführung einer kastenförmigen Rettungszeichenleuchte gemäß dem Stand der Technik;
• 2 Seitendarstellung einer beispielhaften Ausführung einer Rettungszeichenleuchte mit einem Trägerelement und einem mit dem Trägerelement verbundenen Lichtleitelement, sowie mit Rettungswegbeleuchtungselementen, welche an einer Seitenfläche des Trägerelements angebracht sind;
• 3 Ansicht der beispielhaften Ausführung einer Rettungszeichenleuchte aus 2;
• 4 Darstellung eines Querschnitts einer beispielhafte Ausführungsform einer Rettungszeichenleuchte entlang der Schnittlinie A-A aus 3;
• 5 Darstellung eines Querschnitts einer beispielhafte Ausführungsform eines Rettungswegbeleuchtungselements mit einer Optik und einer zugehörigen weiteren Lichtquelle;
• 6 Darstellung eines Querschnitts durch eine beispielhafte Ausführungsform einer Abdeckung mit Lichtleitelement und Rettungswegbeleuchtungselement;
• 7 Unteransicht einer Explosionsdarstellung einer weiteren beispielhaften Ausführungsform einer Rettungszeichenleuchte mit einer beispielhaften Variante eines Leuchtmittelelements, und einer Abdeckung aufweisend das Lichtleitelement, die Rettungswegbeleuchtungselemente, sowie die Seitenfläche;
• 8 Oberansicht der Explosionsdarstellung der weiteren beispielhaften Ausführungsform einer Rettungszeichenleuchte aus 7;
• 9 Darstellung eines Querschnitts der beispielhaften Variante der Abdeckung aufweisend das Lichtleitelement, die Rettungswegbeleuchtungselemente, sowie die Seitenfläche aus 3;
• 10 Darstellungen einer beispielhaften Anwendung einer Ausführungsform einer Rettungszeichenleuchte, welche dazu ausgebildet ist, die Auswahl der zur Rettungswegbeleuchtung verwendeten Rettungswegbeleuchtungselemente variabel anzupassen;
• 11 Oberansicht einer beispielhaften Ausführung von vier Rettungswegbeleuchtungselementen, welche insbesondere in einem Rettungswegbeleuchtungsmodul angeordnet sind.

The invention is explained in more detail below using exemplary embodiments and with reference to the drawing. Show it:

• 1 Representation of an exemplary embodiment of a box-shaped escape sign luminaire according to the prior art;
• 2 Side view of an exemplary embodiment of an escape sign luminaire with a support element and a light-guiding element connected to the support element, and with escape route lighting elements ten which are attached to a side surface of the support member;
• 3 View of the exemplary design of an escape sign luminaire 2 ;
• 4 Representation of a cross section of an exemplary embodiment of an escape sign luminaire along section line AA 3 ;
• 5 Representation of a cross section of an exemplary embodiment of an escape route lighting element with an optical system and an associated additional light source;
• 6 Representation of a cross section through an exemplary embodiment of a cover with a light guide element and an escape route lighting element;
• 7 Bottom view of an exploded view of a further exemplary embodiment of an escape sign luminaire with an exemplary variant of a lighting element and a cover having the light-guiding element, the escape route lighting elements and the side surface;
• 8th Top view of the exploded view of the further exemplary embodiment of an escape sign luminaire 7 ;
• 9 Representation of a cross section of the exemplary variant of the cover having the light guide element, the escape route lighting elements and the side surface 3 ;
• 10 Representations of an exemplary application of an embodiment of an escape sign luminaire, which is designed to variably adapt the selection of the escape route lighting elements used to illuminate the escape route;
• 11 Top view of an exemplary embodiment of four escape route lighting elements, which are arranged in particular in an escape route lighting module.

the 2 until 4 show various views of an exemplary embodiment of an escape sign luminaire 10 according to the invention with a carrier element 400 and a light-guiding element 100 connected to the carrier element 400, as well as escape route lighting elements 200 which are attached to a side surface 401 of the carrier element 400.

The light guide element 100 has two flat sides 102, 103, with an escape route symbol 120 being arranged on at least one of the flat sides 102, 103, with the escape route symbol 120 also indicating a planned escape route direction 121.

At least the ones in the 2 The visible flat side 102 is in this case a light-emitting surface 130, and this can also apply to the other flat side 103. The escape route symbol 120 is illuminated by the escape route symbol 120 arranged on the light emission surface 130 and is therefore clearly visible. Provision can also be made for the escape route symbol 120 shown, or the escape route direction 121 shown, to be dynamically changeable, so that the escape sign luminaire 10 can react to a change in the planned escape route direction, and the displayed escape route direction 121 can be adjusted accordingly, so that people fleeing or to be evacuated people can save themselves easily, safely and quickly. In particular, this could be used to react to suddenly occurring dangers, which is 10 , especially in the context of 10A until 10C is shown as an example.

Such a dynamic change in the display of the escape route symbol 120 can preferably be implemented by designing the light emission surface 130 as a display, in particular as an e-ink display. However, other configurations are also conceivable for this.

The light-guiding element 100 is, as in FIG 2 shown, coupled to the side surface 401 of the carrier element 400 and is held by this connection to the escape sign luminaire 10. Furthermore, the light guide element 100 has a narrow side 101 which forms a light coupling area 110 of the light guide element 100 , with this light coupling area 110 also being able to lie inside the side surface 401 . In the cross-sectional view of the 4 the arrangement of the side surface 401 and the light-guiding element 100 is illustrated, with the narrow side 101 or the light coupling region 110 also being shown.

in the in 2 In the embodiment shown, the side surface 401 is arranged on the underside of the carrier element 400 and completely covers it, at least from the underside. The escape route lighting elements 200 or ERI spots (Escape Route Illumination Spots) are arranged on the side surface 401 and are designed to provide escape route lighting, particularly in an emergency. The escape route lighting elements 200 each have an optical system 201, which is assigned a further light source 303, each of the optical systems 201 being designed for asymmetrical light emission. Depending on the orientation of the escape route lighting element 200 or the optics 201, the light emission of the respective takes place Escape route lighting element 200 essentially in one direction R1, R2, R3, R4, with the light emitted by the escape route lighting element 200 always being radiated away from the light-guiding element 100, so that disruptive reflections on the surface of the light-guiding element 100, i.e. in particular on the escape route symbol 120, are avoided, and a simple and clear identification of the escape route direction 121 shown is made possible. In particular, it is preferably provided that the escape route lighting elements 200 emit light in different directions R1 , R2 , R3 , R4 so that different potential escape routes can be illuminated by the escape sign luminaire 10 with the escape route lighting elements 200 .

The escape route lighting elements 200 fulfill a multiple benefit here, since on the one hand they illuminate the actual escape route so that people can recognize and avoid obstacles on the escape route, and on the other hand they also have a directional function, since an illuminated path is in contrast to a non-illuminated path is preferred by people fleeing or to be evacuated, so that the escape route lighting by the escape route lighting elements 200, as well as the escape route symbol 120, indicate the escape or escape route direction. The escape route lighting elements 200 are designed in such a way that they emit light in a direction R1, R2, R3, R4, which corresponds to the intended escape route direction, and also emit light in a direction R1, R2, R3, R4, from which fleeing or .People to be evacuated arrive so that these people are guided safely along the rescue route. Provision is therefore particularly preferably made for at least one direction B1, B2 illuminated by the selected escape route lighting elements 200 to correspond to the escape route direction 121 displayed on the escape route symbol 120

The escape route lighting elements 200 are arranged around the light-guiding element 100, with an escape route lighting element 200 being arranged on the side surface 401 in front of the four surfaces of the light-guiding element 100 arranged essentially perpendicularly to the side surface 401 in the illustrated embodiment, with the fourth escape route lighting element 200 not being located due to the perspective illustration is visible. However, versions of the escape sign luminaire 10 with fewer or more than four escape route lighting elements 200 are of course also conceivable.

In the embodiment shown, the light guide element 100, the side surface 401 and the escape route lighting elements 200 form a cover 410 for the carrier element 400. The cover 410 thus closes the carrier element 400 on one side, in particular the underside of the carrier element 400. The light-guiding element 100, the side surface 401 and the escape route lighting elements 200 are an integral part of the cover 410, so that the cover 410 also effectively protects components located inside the carrier element 400 from external influences. In particular, the carrier element 400 with such a cover 410 is particularly protected against dirt, for example in the form of dust or soot deposits, and moisture, for example in the form of atmospheric moisture or spray water from sprinkler systems. This configuration of the cover 410 also considerably simplifies the production, assembly and maintenance of the escape sign luminaire 10, in particular by removing the cover 410, the components arranged inside the carrier element 400, such as the circuit board 302, the lamps 301, a Control unit 600, batteries for emergency power supply, and / or other elements are easily installed, accessible and replaceable.

in the in 2 illustrated embodiment of the escape sign luminaire 10, this has a control unit 600 inside the carrier element 400, the control unit 600 being designed in particular to receive control signals and to operate the escape sign luminaire 10 in accordance with the control signals. In the embodiment shown, control unit 600 is designed to dynamically change at least escape route direction 121 indicated by rescue symbol 120 and/or to dynamically change the escape route illuminated by escape route lighting elements 200, in particular by appropriate selection of escape route lighting elements 200 used for escape route lighting.

In addition, an illuminant element 300, or respectively an illuminant unit 300, is arranged inside the carrier element 400, which is closed off by the cover 410. This illuminant element 300 is in particular in the cross-sectional view of FIG 4 shown by way of example, the illuminant element 300 having an illuminant 301 , in particular an LED 301 , and a circuit board 302 . Furthermore, as in the 4 shown, it can be provided that the further light sources 303 which are assigned to the respective optics 201 of the escape route lighting elements 200 are also arranged on the circuit board 302 of the illuminant element 300 . With this embodiment, the escape sign luminaire 10 can be manufactured and maintained in a particularly simple manner. Of course However, other configurations of the arrangement of the further light sources 303 are also conceivable, with an arrangement separate from the circuit board 302 also being possible.

In this case, the escape sign luminaire 10 is preferably provided for ceiling mounting, with the carrier element 400 being designed to be mounted directly on a ceiling. However, provision can also be made to mount the escape sign luminaire 10 on a wall without restricting the functionality of the escape sign luminaire 10, for which purpose, for example, the arrangement with the carrier element and the light coupling area 110 is rotated by 90° with respect to the light guide element 100.

the 3 shows a bottom view of the from 2 known escape sign luminaire 10. In this illustration, the components of the cover 410 are shown in particular, with the side surface 401 of the carrier element 400 being a connecting link between the escape route lighting elements 200 and the light-guiding element 100. The light guide element 100 is arranged centrally on the side surface 401, with the escape route lighting elements 200 being arranged symmetrically around the light guide or the light guide element 100, and with an escape route lighting element 200 being arranged in front of each surface of the light guide element 100 that extends perpendicularly to the side surface 401. The escape route lighting elements 200 are designed to emit light in different directions R1, R2, R3, R4, so that the escape sign luminaire 10 is designed to illuminate escape routes in different directions. In particular, it can be provided that the light emission of each individual escape route lighting element 200 is oriented according to the arrangement of the respective escape route lighting element 200 in relation to the light-guiding element 100 .

While the escape route lighting elements 200 and in particular their optics 201 are preferably an integral part of the cover 410, embodiments of the escape route lighting elements 200 are also conceivable in which the escape route lighting elements 200, or at least one of the optics 201, are rotatably mounted so that an individual, manual, and subsequent Adjustment of the direction of emission is possible.

In the embodiment of the escape sign luminaire 10 shown, provision is preferably made for only some of the existing escape route lighting elements 200 to be activated for escape route lighting during operation of the escape route lighting. This has the advantage that only the routes relevant to the actual escape route are illuminated by the escape route lighting elements 200, so that people fleeing or to be evacuated can be guided more quickly, efficiently and safely along the escape route, with misleading lighting being avoided.

Furthermore, in the exemplary embodiment shown, it is provided that the escape route lighting elements 200 used to illuminate the escape route, and thus the directions R1, R2, R3, R4 to be illuminated, can be selected by a user. Thus, the escape sign luminaire 10 can be flexibly adapted by a user to the respective general conditions of the place of use, with the escape route lighting in particular being individually adaptable by the escape route lighting elements 200 of the escape sign luminaire 10 to the respective escape route provided for the place of use. The escape sign luminaire 10 designed in this way is therefore sustainable because it can respond to changes in the environment and can continue to be used, for example, when a building or a floor is restructured, since the active light emission directions R1, R2, R3, R4 of the escape route lighting elements 200 are replaced by corresponding Selection of the escape route lighting elements 200 used for escape route lighting are customizable.

For example, such an adaptation of the selection of the escape route lighting elements 200 used to illuminate the escape route can be effected by a control command which was sent to the escape sign luminaire 10 or the control unit 600 . Particularly preferably, it is conceivable that the control signal is transmitted wired or also wirelessly to the escape sign luminaire 10 or to the control unit 600, with this being able to take place in particular via DALI or power line communication, or NFC, Bluetooth or WLAN. However, embodiments of the escape sign luminaire 10 without a control unit 600 are also conceivable.

Furthermore, other adaptation options for the selection of the escape route lighting elements 200 used for escape route lighting are also conceivable. For example, the escape route lighting elements 200 used to illuminate the escape route can be selected by actuating or setting a switch which is coupled to the escape sign luminaire 10 . In addition, it is also conceivable to use the escape route lighting elements 200 used to illuminate the escape route by changing so-called jumpers or cables inside the escape sign luminaire 10. Embodiments are also conceivable in which the further light sources 303 of the escape sign luminaire 10 can be connected to the circuit board 302 in a modular manner, with only the escape route lighting elements 200 used for lighting the escape route being electrically coupled to the circuit board 302 . In addition, in one embodiment, control of the escape sign light 10 can also be implemented by digital control via a converter, with computer-based or program-based control of the escape sign light 10 also being advantageous.

The escape sign luminaire is preferably designed to variably adapt the selection of the escape route lighting elements 200 used or operated for escape route lighting, with at least one direction B1, B2 illuminated by the selected escape route lighting elements 200 being used corresponding to the escape route direction 121 displayed on the escape route symbol 120. Such an embodiment of the escape sign luminaire 10 could take into account dynamically changing framework conditions, with the escape sign luminaire 10 being designed to dynamically select the displayed escape route direction 121 and the escape route lighting elements 200 used for escape route lighting, or to adapt the selection of the escape route lighting elements 200 used for escape route lighting, so that fleeing or people to be evacuated are guided as quickly and safely as possible along an adapted rescue route.

The escape sign luminaire 10 is particularly preferably designed to change the selection of the escape route lighting elements 200 used for escape route lighting during operation of the escape sign luminaire 10, with the control unit 600 also preferably being designed to receive external control signals and, based on the control signals received, to control the light emission surface 130 and/or or to control the existing escape route lighting elements 200 accordingly.

In the 3 a section axis AA is also drawn in, which indicates a section perpendicular to the escape sign luminaire 10 extending along a longitudinal direction.

In the 4 the cross section of this embodiment of the escape sign luminaire 10 is shown through the section axis AA, whereby the preferred T-shaped configuration of the components of the cover 410 can be seen. In addition to the cover 410, the illuminant element 300 that is in contact with the cover 410 is also shown, it being shown that the illuminant element 300 is held inserted in the cover 410 in this embodiment. However, embodiments are also conceivable in which the illuminant element is held elsewhere, in particular inside the carrier element.

In addition to the assignment of the additional light sources 303 to their respective optics 201, the light coupling region 110 formed on the narrow side 101 of the light guide element 100 is also shown, with the light emitted by the lamps 301 being coupled into the light guide element 100 on this narrow side 101. In the embodiment shown, the additional light sources 303 and the lighting means 301 are connected to the circuit board 302 .

In the 5 1, a cross section of an exemplary embodiment of an escape route lighting element 200 used in the escape sign luminaire 10 is shown. Provision can preferably be made for the optics 201 of the escape route lighting element 200 to be integrally connected to the cover 410 . In another embodiment, on the other hand, it can be provided that the optics 201 are rotatably mounted, in particular can also be removed from the cover 410 .

the 6 shows a cross section through another exemplary embodiment of a cover 410 with a light guide element 100. The light guide element 100 has its two flat sides 102, 103, with an escape route symbol 120 being arranged on both flat sides 102, 103 in the embodiment shown. The light-guiding element 100 is also integrally connected to the cover 410 , light from an illuminant 310 being coupled into the light-guiding element 100 via the light coupling-in region 110 . In the embodiment shown here, the optics 201 of the escape route lighting element 200 have a modular design and are therefore not an integral part of the cover 410, with the optics 201 being able to be removed and rotated, for example.

the 7 until 9 show different views of a further exemplary embodiment of an escape sign luminaire 10 with an exemplary variant of an illuminant element 300 and a cover 410 having the light-conducting element 100, the escape route lighting elements 200 and the side surface 401. The embodiments and described with regard to the escape sign luminaire 10 in the preceding description and figures Characteristics are of course also included in the 7 until 9 embodiment shown applicable mutatis mutandis.

In the 7 is a bottom view of an exploded view of the further embodiment of an escape sign luminaire 10, in which case the arrangement of the escape route lighting elements 200 in particular differs from that in FIG 2 variant shown differs. In this case, the escape route lighting elements 200 are only positioned in front of the flat sides 102 , 103 of the escape sign luminaire 200 . The light-guiding element 100 is positioned centrally on the side surface 401, with the light-guiding element 100 thus dividing the side surface 401. There are two escape route lighting elements 200 on each partial side of the side surface 401, with the escape route lighting elements 200 each being aligned differently such that the escape route lighting elements 200 emit light in different directions, this already being known from the previous description of the features.

The one in the 7 The illustrated embodiment of lighting element 300 has circuit board 302 and lighting means 301, lighting means 301, which are in particular LEDs, being arranged in an elongated row so that the light emitted by lighting means 301 is as direct and uniform as possible via light coupling region 110 into the Light guide element 100 passes. Furthermore, the further light sources 303 are arranged on the circuit board 302, these being positioned on the circuit board 302 in such a way that the light they emit radiates into the respective associated optics 201. The optics 201 , like the light guide element 100 , are firmly connected to the side surface 401 , these three components together essentially forming the cover 410 .

In the 8th FIG. 14 is another perspective view of FIG 7 shown embodiment, in which case the mounting of the circuit board 302 inside the cover 410 can be seen. Furthermore, the narrow side 101 and an embodiment of the light coupling area 110 are also shown, it being evident that the light coupling area 110 is designed in such a way that the light emitted by the lamps 301 is coupled as ideally as possible into the light guide element 100. Furthermore, light in-coupling structures of the optics 201 are shown, which bring about an efficient light in-coupling of the further light sources 303 .

The cover 410 or the side face 401 preferably has fastening elements which are designed to fasten the cover 410 to the carrier element 400 . in the in 8th shown embodiment, these fastening elements are formed by snap hooks, which snap into corresponding recesses in the carrier element 400 and thus hold the cover 410 on the carrier element 400.

In the 9 is a page representation of the previously in 7 and 8th shown further embodiment of the cover 410 shown, in which case the different orientation of the escape route lighting elements 200, or their optics 201 is shown. The light emitted by the escape route lighting elements 200 is radiated away from the light guide element 100 in each case.

The regarding in 2 until 9 The exemplary embodiments and features shown relate to an escape sign luminaire 10, which is designed to variably and dynamically adapt the selection of the escape route lighting elements 200 used for escape route lighting, are analogous and, to the extent that makes sense, also valid for escape sign luminaires 10 without a light-guiding element 100 according to the invention but with a light-emitting surface 130, with particular also box-shaped escape sign luminaires with these features are conceivable. In such an embodiment of such an escape sign luminaire, the plurality of escape route lighting elements 200 are preferably arranged on the underside of the housing of the box-shaped escape sign luminaire, as is shown in 1 is shown as an example. Provision can be made in particular for the escape route lighting elements 200 or the optics 201 of the escape route lighting elements 200 to be arranged next to one another, as is shown in 11 is shown as an example. In addition, in one embodiment, the escape route lighting elements 200 could be combined to form an escape route lighting module 210 which is preferably positioned on the underside of box-shaped escape sign luminaires 10 .

the 10 , which on the three 10A , 10B and 10C divided, each shows an escape sign luminaire. A section of a building plan is shown in each of the three illustrations, with an emergency situation present and people in the building having to be guided along a planned escape route F1. In this case, the escape sign luminaire 10 has an escape route symbol 120 which indicates an escape route direction 121 . Furthermore, the escape sign luminaire 10 has several escape route lighting elements 200 which are designed to illuminate an escape route. In the present exemplary representation, the existing escape route lighting elements 200 illuminate two escape route sections B1, B2, with the escape route lighting elements 200 for this the Ret ment path sections corresponding directions B1, B2 illuminate.

The one in the 10A Illuminated directions B1, B2 correspond to the intended rescue or escape route F1. So if people fleeing or to be evacuated follow the escape route illuminated by the escape route lighting elements 200, they are guided quickly and safely along the optimum escape route.

In the 10B a further problem situation is first introduced. In addition to the already existing emergency situation, the originally planned escape route F1 (see 10A) a source of danger at present, so that the previously planned escape route F1 becomes a wrong escape route F2. The intended escape route F1 has thus changed, with the intended escape route F1 leading through a different stairwell in the example shown.

the 10B describes the problems of existing escape sign luminaires 1010 (see 1 ) with escape route lighting elements 1200, the escape route lighting elements 1200 not being dynamically changeable. In the exemplary embodiment shown, the escape route lighting elements 1200 continue to illuminate the same escape route sections B1, B2 as in FIG 10A , although these illuminated directions B1, B2 now correspond to the false escape route F2, since there is a source of danger on this route, which in the 10B is represented by a fire symbol as an example. The one in the 10B The embodiment of an escape sign luminaire shown has a changeable escape route symbol 120. This escape route symbol indicates the correct escape route direction along the intended escape route F1 using the displayed escape route direction 121, but people fleeing or to be evacuated continue to be guided along the wrong direction by the illuminated directions B1, B2 escape route F2.

So if persons fleeing or to be evacuated follow the path B1 illuminated by the escape route lighting elements 200, they reach a decision point 1 at which they are no longer reliably guided by the escape sign luminaire 1010, since the escape route directions indicated by the escape sign luminaire 1010 do not match. This at least slows down the evacuation process, with people being guided to a source of danger in the worst case, namely when the people fleeing or to be evacuated follow the path B2 illuminated by the escape route lighting elements 200 .

the 10C shows the basic scenario 10B , whereby the originally planned escape route F1 (see 10A) has a source of danger and now represents an incorrect escape route F2, so that the intended rescue or escape route F1 has been changed. The escape sign luminaire 10 is now designed to dynamically adapt the selection of the escape route lighting elements 200 used for the escape route illumination, and in particular to make a selection based on the indicated escape route direction 121 . Like in the 10C shown, with such an embodiment, the people fleeing or to be evacuated are guided along the intended escape route F1 through the directions B1, B2 illuminated by means of escape route lighting elements 200, with at least one direction B1, B2 illuminated by the selected escape route lighting elements 200 also being in the direction indicated on the Escape route symbol 120 indicated escape route direction 121 corresponds. As a result, there is no need for a person fleeing or to be evacuated to make a decision at point 1, so that people are guided quickly and safely along the optimal rescue route.

By illuminating the correct intended escape route F 1 by means of the escape route lighting elements 200, the people fleeing or to be evacuated can find their way around in an emergency situation more quickly and safely.

In order to adapt the direction B1, B2 to be illuminated, provision can be made in particular for the escape sign luminaire 10 or the control unit 600 to receive a control signal, on the basis of which the escape route symbol 120 and/or the selected escape route lighting elements 200 are changed. It is particularly conceivable here for the control signal to be transmitted wired or also wirelessly to the escape sign luminaire 10 or to the control unit 600, with this being able to take place in particular via DALI or power line communication, or NFC, Bluetooth or WLAN. Provision can also be made for escape sign luminaire 10 to be coupled to an emergency reporting system, in particular a fire alarm system, whereby in an emergency situation, e.g. in the event of a fire, escape sign luminaire 10 automatically receives a signal and corresponding to the signal, escape route symbol 120 and/or the selected escape route lighting elements 200 changed according to the situation.

In another embodiment, this switching of the escape route symbol 120 and the selected escape route lighting element mente 200, for example, by means of a switch or a similar control unit.

Furthermore, provision can also be made for several escape sign luminaires 10 to be able to communicate with one another within a system in order in this way to display an optimal escape route.

Thus, an escape sign luminaire 10 with a light guide element 100 and escape route lighting elements 200 is shown, which is designed to illuminate the escape route in emergency situations. Furthermore, an escape sign luminaire 10 is specified, which is designed to variably and dynamically adapt the selection of the escape route lighting elements 200 used to illuminate the escape route.

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• EP 2648178 B1 [0002]
• DE 102011082844 A1 [0004]

Claims (14)

Escape sign luminaire (10) having: • an illuminant element (300), preferably consisting of at least one LED (301) and a circuit board (302), and • a carrier element (400) for holding the illuminant element (300), and • a light-guiding element (100 ), which is connected to the carrier element (400), the light guide element (100) having a light coupling area (110) formed on a narrow side (101) of the light guide element (100), the illuminant element (300) on the light coupling area (110) of the light guide element (100) is arranged, and wherein the light-guiding element (100) is designed to transmit the light emitted by the lighting element (300) and radiated in via the light coupling region (110) via at least one substantially perpendicular to the narrow side (101) of the light-guiding element (100 ) arranged flat side (102, 103) to radiate, and on the flat side (102, 103) an escape route symbol (120) is attached, characterized in that di e Escape sign luminaire (10) has at least one escape route lighting element (200) for escape route lighting, which is connected to the carrier element (400) and is designed to emit light asymmetrically, such that the light emitted by the escape route lighting element (200) is radiated away from the light guide element (100). . Escape sign luminaire according to claim 1 , characterized in that the escape sign luminaire (10) has a plurality of escape route lighting elements (200), particularly preferably two, three or four escape route lighting elements (200), the plurality of escape route lighting elements (200) being designed to point in different directions (R1, R2, R3, R4 ) to emit light. Escape sign luminaire according to claim 2 , characterized in that when the escape route lighting is in operation, only some of the existing escape route lighting elements (200) are activated to illuminate the escape route. Escape sign luminaire according to claim 2 or 3 , characterized in that the escape route lighting elements (200) used to illuminate the escape route, and thus the directions (R1, R2, R3, R4) to be illuminated, can be selected by a user. Escape sign luminaire according to one of the preceding claims, characterized in that the carrier element (400) has a side surface (401) on its underside, the light-guiding element (100) in the region of the narrow side (101) forming the light coupling region (110) having the side surface (401 ) is contacted, and wherein the light-guiding element (100) is preferably arranged centrally on the side surface (401), a cross section (AA) through the light-guiding element (100) and side surface (401) being T-shaped. Escape sign luminaire according to claim 5 , characterized in that the existing escape route lighting elements (200) are arranged on the side surface (401) of the carrier element (400). Escape sign luminaire according to one of the preceding claims, characterized in that the existing escape route lighting elements (200) each have an optic (201) for asymmetrical light emission, each optic (201) being assigned a further light source (303). Escape sign luminaire according to one of the preceding claims, characterized in that the carrier element (400) has a cover (410), the cover (410) comprising at least the side surface (401), the light-guiding element (100) preferably being an integral part of the cover ( 410) and/or wherein the existing escape route lighting elements (200) are preferably at least partially an integral part of the cover (410), with the optics (201) of the existing escape route lighting elements (200) particularly preferably being integrated into the cover (410). Escape sign luminaire according to one of Claims 5 until 8th , characterized in that the existing escape route lighting elements (200) are arranged on the side surface (401) surrounding the light-guiding element (100), with at least one of the existing escape route lighting elements (200) preferably being arranged in front of the flat side (102, 103) of the light-guiding element (100). is. Escape sign luminaire according to one of the preceding claims, characterized in that the escape route symbol (120) indicates an escape route direction (121), the indicated escape route direction (121) being dynamically changeable. and wherein the escape sign luminaire preferably has a control unit (600) for controlling the dynamic change. Escape sign luminaire according to claim 10 , characterized in that the escape sign luminaire is designed to variably select the escape route lighting elements (200) used for escape route lighting, with at least one direction (B1, B2) illuminated by the selected escape route lighting elements (200) used in the escape route direction ( indicated on the escape route symbol (120) 121) corresponds. Escape sign luminaire (10) having: • an illuminant element (300), preferably consisting of at least one LED (301) and a circuit board (302), and • a light-emitting surface (130), the light-emitting surface (130) being designed to display an escape route symbol (120 ) and wherein the escape route symbol (120) indicates an escape route direction (121), the escape route direction (121) displayed being variable, • a control unit (600) which is designed to display the escape route symbol (120 ) to change dynamically, the escape sign luminaire (10) having a plurality of escape route lighting elements (300) for escape route lighting, the escape route lighting elements (200) being designed to emit light in different directions (R1, R2, R3, R4), characterized in that the The control unit (600) is designed to base the escape route lighting elements (200) used to illuminate the escape route rend on the displayed escape route direction (121). Escape sign luminaire according to one of Claims 10 until 12 , characterized in that the light emission surface (130) for displaying the escape route symbol (120) is formed as a display, in particular as an e-ink display. Escape sign luminaire according to one of Claims 10 until 13 , characterized in that the control unit (600) is designed to receive external control signals and based on the received control signals to control the light emission surface (130) and / or the existing escape route lighting elements (200) accordingly.

Images