DE102023124358A1 - lamp - Google Patents

Abstract

A light is specified. The luminaire (1) comprises a light engine (10) for generating a light and a luminaire housing (2) for accommodating the light engine (10), the luminaire housing (2) having a radiation area (4) on a front side and a fastening area (3) on a back opposite the front. The emission area (4) is designed in such a way that the light engine (10) can be detachably fastened in or on the emission area (4) of the lamp housing (2).

Description

The invention generally relates to a lighting device. In particular, the invention relates to a lamp.

Lighting devices or lights are known, in particular for illuminating a room or a room area. LED (light-emitting diode) devices with light engines or LED light engines are also known, in which LEDs are used as light sources. In view of ecological challenges, such as scarcity of raw materials and resources, the compatibility of lights with the circular economy is becoming increasingly important. For example, the new European Sustainability Directives encourage users to replace parts or components of the luminaire, rather than the entire luminaire, when upgrading or repairing a luminaire. However, replacing some parts of lights may require tools and special technical knowledge that the end user may not have.

The object of the present application is to provide a luminaire that allows parts of the luminaire to be easily replaced without special equipment or tools.

A lamp is provided to solve this task. The lamp can in particular be designed as a ceiling lamp, wall lamp and/or another type of lamp. The luminaire includes a light engine for generating a light and a luminaire housing for accommodating the light engine. The lamp housing can also be designed to accommodate a driver or driver electronics and/or parts or components of the light engine and/or the driver. The lamp housing includes a radiation area on a front side and a fastening area on a rear side opposite the front side. The radiation area is designed so that the light engine can be releasably attached in or to the radiation area of the lamp housing.

In particular, the radiation area can be designed such that the light engine or one or more light engine modules can be attached to the radiation area and detached from the radiation area without special tools. The light engine can therefore be easily assembled, dismantled or replaced.

The lamp can have a locking mechanism for locking the light engine accommodated in the lamp housing. The locking mechanism can in particular ensure that the detachably attachable light engine does not fall out when handling the lamp, for example during assembly.

The fastening area can in particular be designed to hang the lamp with the back facing upwards, so that the light from the emission area is emitted essentially downwards. In particular, the back of the lamp housing can be designed such that the lamp can be hung from the ceiling of a room on one or more fastening ropes. The lamp can therefore be used as a pendant lamp or pendant lamp.

In some embodiments, an additional light engine is provided on the back of the lamp. The additional light engine can be designed in such a way that, in the mounted state, the light generated by the additional light engine is essentially emitted upwards or towards the ceiling. With the additional light engine, indirect ambient lighting can be provided.

The fastening area or the back of the lamp housing can be designed so that one or more rope heads for hanging the lamp can be attached or attached to the back of the housing. By attaching the rope heads to the back of the light housing, the light can be hung with fastening ropes.

In some embodiments, the fastening area is designed such that a fastening base for fastening the luminaire to a mounting surface in or on the fastening area of the luminaire housing can be releasably fastened. In particular, the fastening area can be designed such that the fastening base can be fastened to the fastening area and detached from the fastening area, in particular without special tools. Due to the detachable connection between the lamp housing and the mounting base, mounting the lamp on the mounting surface can be simplified. For example, in a first step, the mounting base can be mounted on the mounting surface, after which the lamp housing can be attached to the already mounted mounting base.

The light engine can include beam-shaping optics for forming a cone of light with a predetermined opening angle. The beam-shaping optics can be designed in particular to illuminate a target area. In particular, the opening angle of the light cone can be used selected specifically for the application. For example, the opening angle can be approximately 130°, which corresponds to category CAT2 (standardized lighting category) and is particularly suitable for lighting office spaces. Due to the detachable connection, the light engine can be easily replaced without having to remove the entire light. This allows alternative lighting options to be installed with minimal disruption after the initial installation is complete. This can be relevant in applications such as schools, where a light engine with asymmetrical distribution can be fitted to illuminate walls or a blackboard without having to replace the entire luminaire.

The beam-forming optics can include a reflector optics, in particular parabolic optics, especially double parabolic optics. Such reflector optics are particularly suitable for LED light engines to achieve the desired radiation characteristics or light distribution. The reflector optics can include one or more free-form reflectors. The free-form reflectors make it possible to illuminate the target area specifically or with the desired light intensity distribution.

The lamp housing can have a recess on the front to accommodate the light engine, so that the light engine, in particular including the beam-forming optics, can be essentially completely recessed into the recess. The essentially complete recessing of the light engine in the recess ensures that the optical performance of the luminaire is provided without affecting the external design of the luminaire.

The lamp housing can essentially be designed in the form of an elongated profile. Elongated profiles can be easily manufactured in different lengths. Elongated luminaires are particularly suitable for flat or comprehensive lighting, for example in offices. The lamp housing can have a substantially rectangular cross section, in particular with rounded or blunted corners. The rectangular cross-section gives the lamp a simple and attractive shape so that it does not stand out or is disruptive in the overall design of a room to be illuminated.

The light engine can comprise one or more light engine modules, in particular arranged on a common carrier. Lining up light engine modules makes it possible to provide light engines in different sizes or lengths as required.

The beam-shaping optics can include one or more optics modules assigned to respective light engine modules. By assigning the optical modules to the respective light engine modules, each light engine module is enabled to specifically illuminate a portion of the target area. The light engine can be easily assembled from individual modules to illuminate target areas of different sizes or lengths as required.

• 1 zeigt eine schematische Seitenansicht einer Leuchte gemäß einem Ausführungsbeispiel,
• 2 zeigt eine schematische Draufsicht der Leuchte gemäß 1,
• 3 zeigt eine schematische Frontansicht der Leuchte gemäß 1,
• 4 zeigt eine perspektivische Detailansicht der Leuchte gemäß 1,
• 5 zeigt eine perspektivische Explosionsansicht der Leuchte gemäß 1,
• 6 zeigt einen schematischen Querschnitt einer Leuchte gemäß 1 in einem geöffneten Zustand,
• 7 zeigt den schematischen Querschnitt der Leuchte gemäß 6 in einem leicht geöffneten Zustand,
• 8 zeigt den schematischen Querschnitt der Leuchte gemäß 6 in einem geschlossenen Zustand, und
• 9 zeigt eine perspektivische Detailansicht des Innenaufbaus der Leuchte gemäß einem Ausführungsbeispiel.

The invention will now be explained in more detail with reference to the attached figures. The same reference numbers are used in the figures for parts that are the same or have the same effect.

• 1 shows a schematic side view of a lamp according to an exemplary embodiment,
• 2 shows a schematic top view of the lamp according to 1 ,
• 3 shows a schematic front view of the lamp according to 1 ,
• 4 shows a perspective detailed view of the lamp according to 1 ,
• 5 shows an exploded perspective view of the lamp according to 1 ,
• 6 shows a schematic cross section of a lamp according to 1 in an open state,
• 7 shows the schematic cross section of the lamp according to 6 in a slightly open state,
• 8th shows the schematic cross section of the lamp according to 6 in a closed state, and
• 9 shows a perspective detailed view of the internal structure of the lamp according to an exemplary embodiment.

1 shows a schematic side view of a lamp according to an exemplary embodiment. In the in 1 In the exemplary embodiment shown, the lamp 1 is designed as a ceiling lamp or pendant lamp. The lamp 1 comprises a lamp housing 2 with a fastening area 3 or suspension area and with an emission area 4. The lamp housing 2 is designed to accommodate a light engine for generating a light. The lamp housing 2 can also be designed to accommodate a driver or parts of a driver or driver electronic components for driving the light engine. The lamp housing 2 is elongated and has a first cover plate 5 at a first end 6 and a second cover plate 7 at a second end 8.

A light engine 10 is arranged in the radiation area 4. The light engine 10 is shown in the schematic side view of the 1 represented by a dashed line. An additional light engine 10' or additional light engine is arranged in the fastening area 3.

2 shows a schematic top view of the lamp according to 1 . The top view of the 2 corresponds to a view from below when the lamp 1 is mounted or suspended on a ceiling. In the top view of the 2 The light engine 10 of lamp 1 can be seen particularly well. The light engine 10 has a modular structure and has a plurality of light engine modules 11. The light engine modules 11 are arranged in a row in an elongated recess 12 between the first cover plate 5 at the first end 6 and the second cover plate 7 at the second end 8 of the lamp housing 2. Each of the light engine modules 11 has an LED light source 13.

The lamp 1 also has a beam-forming optic 14, wherein the beam-forming optic 14 in the embodiment shown is designed as a reflector optic with a plurality of optic modules 15 with double parabolic mirrors. Each of the light engine modules 11 is assigned an optic module 15.

The lamp 1 further comprises a locking mechanism with levers 16 or locking handles for locking the light engine 10 accommodated in the lamp housing 2.

3 shows a schematic front view of the lamp according to 1 . In the view of 3 the first cover plate 5 as well as the additional light engine 10 'with a lens optics 41 and the lifting 16 of the locking mechanism can be seen. The lever 16 of the locking mechanism protrudes from the lamp housing 2 so that the user can easily operate the lever 16. The shape of the cover plate 5 or the cover plate 7 on the opposite side essentially corresponds to the profile of the lamp housing 2. As can be seen from the shape of the cover plate 5, the profile of the lamp housing 2 is in the form of an elongated rectangle with truncated corners. Depending on the model, the lamp can have 1 different lengths. In some exemplary embodiments, the lamp 1 has a height of 80 mm to 140 mm, in particular 90 mm to 110 mm, and a width of 150 mm to 340 mm, in particular 200 mm to 300 mm.

4 shows a perspective detailed view of the lamp according to 1 . In the perspective detailed view of the 4 the recess 12 on the front of the lamp housing 2 and the light engine 10 arranged therein can be seen particularly clearly. The lever 16 or the locking handle of the locking mechanism is also clearly visible.

By operating the lever 16, the locking mechanism can be unlocked in a simple and convenient manner in order to open the lamp housing 2 and remove the light engine 10 including the beam-forming optics 14 or Louvre. The locking mechanism is also designed in such a way that when the lower cover of the lamp housing 2 is closed, the levers 16 are pushed away without manual operation until they lock into their end position. The light engine 10 together with the beam-forming optics 14 can thus be easily inserted into the lamp housing 2 and locked. In particular, the light engine 10 can be easily assembled or disassembled as required, for example to replace the light engine 10 or parts thereof.

5 shows an exploded perspective view of the lamp according to 1 . In particular, 5 the lamp housing 2, the light engine 10 and the additional light engine 10 'shown separately from each other in perspective. In this exemplary embodiment, the additional light engine 10' is designed in the form of a linear light module or linear light with lens optics 41 in the form of a lens profile. The light engine modules 11 of the light engine 10 are mounted on an elongated support 17.

The light engine 10 including beam-forming optics 14 can be inserted into the recess 12 of the lamp housing 2 and sunk until the levers 16 engage in the end position. The light engine 10 is thus secured in its position.

In the exemplary embodiment 5 the light engine modules 11 are divided into several segments 18, each segment 18 having its own housing or optical housing with locking lugs 20. The locking lugs 20 are designed to secure the segments 18 in the recess 12 of the lamp housing 2 in the inserted state. This means that even longer light engines 10 with several light engine modules 11 can be mounted safely and reliably.

6 shows a schematic cross section of a lamp according to 1 in an open state. In the view of 6 The light engine 10, the additional light engine 10 ', a driver 32 and the locking mechanism 35 can be seen. The lamp housing 2 comprises an upper part 33 and a lower part 34, the upper part 33 and the lower part 34 being connected to one another via a pivot joint 36. The additional Light engine 10 'comprises an LED module with a number of LEDs (not shown) arranged on a circuit board 40 and lens optics 41. The lens optics 41 is designed in the form of an elongated lens profile and includes fastening elements 42 for attaching the lens optics 41 to the lamp housing 2 and holding elements 43 for holding the circuit board 40. The fastening elements 42 are designed to clip into corresponding counter-fastening elements 44 of the lamp housing 2.

In the in 6 In the state shown, the lamp housing 2 is slightly open. The lower part 34 is rotated outwards or downwards relative to the upper part 33 about the pivot joint 36. The large arrow shows the pivoting direction of the lower part 34 towards the upper part 33 when the lamp housing 2 is closed. The locking mechanism 35 includes a latch guide 37 in the lower part 34 of the lamp housing 2, a latch 38 received in the latch guide 37 and an in the upper part 33 of the lamp housing 2 formed locking lug 39. The latch 38 is designed such that in the closed state of the lamp housing 2, the latch 38 is pressed against the locking lug 39 to lock the lamp housing 2.

7 shows the schematic cross section of the lamp according to 6 in a slightly open state. The in 6 The state of the lamp housing 2 shown corresponds to a snapshot during the closing of the lamp housing 2. An inclined outer surface of the latch 38 presses on the locking lug 39, so that the latch 38 is pushed away.

8th shows the schematic cross section of the lamp according to 6 in a closed state. The Great Arrow in 8th shows the direction of movement for unlocking the latch 38. After the lamp housing 2 is completely closed and there is no longer an obstacle in the way of the latch 38, the latch 38 can be extended again and lock the lamp housing 2. The latch 38 can be extended automatically by means of a spring mechanism and/or manually by actuating the lever 16. When the lamp housing 2 is closed, the latch 38 snaps and secures the lamp housing 2 against accidental opening. The locking mechanism 35 allows the lamp housing 2 to be opened and closed again in a simple and safe manner, for example to remove and install or replace individual components of the light engine assembly and/or the electrical driver 32 if necessary.

The lens optics 41 can in particular be designed as a wide-angle lens optics, so that the light generated by the additional light engine 10 'is scattered at a wide angle perpendicular to the longitudinal direction of the lamp. With the additional light engine 10', flat background lighting or indirect ambient lighting can be generated, particularly on the ceiling.

9 shows a perspective detailed view of the interior structure of the lamp according to an exemplary embodiment. The exemplary embodiment of the 9 essentially corresponds to that in 1 to 8 illustrated embodiment and also has a spring mechanism with springs 45. In the representation of the 9 a spring 45 can be seen in a compressed state. The spring 45 is strip-shaped and has a flat end for attachment to the upper part 33 of the lamp housing 2, a central region directed essentially perpendicular to the flat end, and an arcuate free end. The spring 45 is designed so that when the lamp housing 2 is closed, the arcuate free end of the spring 45 comes into contact with the latch guide 37 and exerts an elastic spring pressure. To illustrate the spring mechanism, the spring 45 is also shown as dashed lines in the non-compressed state. The closing of the lamp housing 2 takes place against the spring force of the spring 45 and the opening of the lamp housing 2 is facilitated by this spring pressure. For example, if the lamp housing 2 is positioned with the radiation area 4 upwards and the locking mechanism 35 is unlocked by operating the lever 16, the lamp housing 2 opens slightly due to the spring force alone. When the lamp housing 2 is closed, the spring force causes the latch 38 to be pressed more strongly onto the locking lug 39, which can prevent the lamp 1 from being opened unintentionally. In addition, the spring mechanism gives the user haptic feedback when closing and opening the lamp housing 2, which makes handling the lamp 1 easier overall.

The lamp 1 can be manufactured in a simple manner. For example, the lamp housing 2 can be made of extruded aluminum and the end caps can be made of die-cast aluminum. This means that the lamp can be manufactured in many different variations depending on customer requirements and, if necessary, painted in different colors. In some exemplary embodiments, the lamp housing 2 is made of sheet steel. In particular, a steel sheet can be cut and shaped according to the profile of the lamp housing 2. The cover plates 5 and 7 can also be removed be cut from a sheet of steel. In some exemplary embodiments, the lamp housing 2 is made from a plastic material, in particular by extrusion. The lens optics 41 can be manufactured in one piece together with the fastening elements 42 and holding elements 43, in particular using injection molding and/or extrusion processes.

The latch 38 and the lever 16 can be made in one piece from a flat metal plate. The flat metal plate can be pushed back and forth along the elongated locking guide 37 when locking or unlocking the locking mechanism 35.

The lamp housing 2 can be equipped with driver components, electrical cables and other components when open. The light engine 10 can be mounted in the lower part 34 of the lamp housing 2 and electrically connected to the driver 32. The additional light engine 10 'can be mounted on the upper part 33 of the lamp housing 2 by clipping the lens optics 41 together with the circuit board 40 into the recess provided in the lamp housing 2.

After the light engine 10 and the additional light engine 10 'have been mounted and electrically connected to the driver electronics, the lamp housing 2 can be closed. For this purpose, in a first step, the lower part 34 of the lamp housing 2 can be brought into pivotable engagement about the pivot joint 36 with the upper part 33 of the lamp housing 2. In a subsequent step, the lower part 34 can be brought into the closed position with a pivoting movement, cf. 6 , 7 and 8th above. When closing the lamp housing 2, the latch 38 first moves away from the locking lug 39 and then assumes the extended position, so that the lower part 34 including the light engine 10 are locked in the target position. If necessary, the lamp housing 2 can be easily opened by operating the lever 16 or latch handle in order to remove and/or install components if necessary. The lamp 1 can therefore be easily retrofitted by replacing individual components, which can reduce the environmental impact.

Although at least one exemplary embodiment has been shown in the foregoing description, various changes and modifications may be made. The noted embodiments are merely examples and are not intended to limit the scope, applicability, or configuration of the present disclosure in any way. Rather, the foregoing description provides those skilled in the art with a plan for implementing at least one exemplary embodiment, wherein numerous changes in the function and arrangement of elements described in an exemplary embodiment can be made without departing from the scope of the appended claims and their legal equivalents . In addition, several modules or several products can be connected to one another according to the principles described here in order to obtain additional functions.

Reference symbol list

1

lamp

2

Light housing

3

Fastening area

4

Radiation area

5

Cover plate

6

first ending

7

Cover plate

8th

second ending

10

Light engine

10'

additional light engine

11

Light engine module

12

recess

13

LED

14

beam-forming optics

15

Optical module

16

lever

17

carrier

18

segment

19

Housing

20

detent nose

32

driver

33

upper part

34

lower part

35

Locking mechanism

36

Swivel joint

37

Latch guide

38

bars

39

Locking nose

40

Circuit board

41

Lens optics

42

fastener

43

Holding element

44

Counter fastener

45

Feather

Claims (10)

Luminaire, comprising: - a light engine (10) for generating a light, and - a lamp housing (2) for accommodating the light engine (10), wherein the lamp housing (2) comprises a radiation area (4) on a front side and a fastening area (3) on a rear side opposite the front side, and wherein the radiation area (4 ) is designed so that the light engine (10) can be releasably attached in or on the radiation area (4) of the lamp housing (2). Shine on Claim 1 , wherein the lamp (1) further has a locking mechanism (35) for locking the light engine (10) accommodated in the lamp housing (2). Shine on Claim 1 or 2 , wherein the fastening area (3) is designed to hang the lamp with the back upwards, so that the light from the emission area (4) is emitted essentially downwards. Shine on Claim 3 , whereby an additional light engine (10') is provided on the back of the lamp, which is designed such that in the mounted state the light generated by the additional light engine (10') is essentially emitted upwards. Luminaire according to one of the preceding claims, wherein the light engine (10) comprises beam-shaping optics (14) for forming a light cone with a predetermined opening angle. Shine on Claim 5 , wherein the beam-shaping optics (14) comprises a reflector optics, in particular parabolic optics, especially double parabolic optics. Lamp according to one of the preceding claims, wherein the lamp housing (2) has a recess (12) on the front for receiving the light engine (10), so that the light engine (10) is essentially completely in the recess (12). can be sunk. Lamp according to one of the preceding claims, wherein the lamp housing (2) is essentially designed in the form of an elongated profile. Luminaire according to one of the preceding claims, wherein the light engine (10) comprises one or more light engine modules (11). Shine on Claim 7 , wherein the luminaire comprises beam-shaping optics with one or more optical modules (14) assigned to the respective light engine module (11).

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