Flat luminaire with driver box

Abstract

The present invention relates to a flat lighting device (1) extending longitudinally along a longitudinal extension axis (L), wherein the lighting device (1) has a rear side (R) and a front side (F) extending longitudinally along the longitudinal extension axis (L) at opposite sides of the longitudinal extension axis (L), wherein the lighting device (1) includes: a light source (100); a driver (200) for driving the light source (100); and a flat housing (300) defining a light source mounting space (301) for accommodating the light source (100) on the inner side (I) of the flat housing (300). Thus, the flat housing (300) extends longitudinally along a longitudinal extension axis (L), wherein the flat housing (300) has: a body (310), and a light source (100) mounted to the body (310) on the front-facing (F) surface of the body (310) on the inner side (I) of the flat housing (300); and a light emission opening (320) located on the front side (F) for emitting light generated by the light source (100). The flat lighting device (1) also includes a driver housing (400), wherein a driver (200) is mounted on the inner surface of the driver housing (400), wherein the driver housing (400) is mounted on the rear side (R) of the body (310). Furthermore, a lighting system (1000) including at least two lighting devices in the lighting device (1) is provided.

Description

[0001] The present invention relates to a flat lighting device having a separate drive housing for carrying a driver.

[0002] In currently known lighting equipment, and specifically in lighting equipment with high lighting power output, heat generation, heat dissipation, and heat loss are important aspects to consider during design. Flat and narrow lighting fixtures, typically installed in industrial buildings such as storage areas, office areas, and commercial kitchens, often present thermal problems. The driver of the lighting fixture, along with the corresponding light source module, is positioned in the surrounding environment, which is typically formed by multiple LEDs mounted on an LED board. Therefore, heat-sensitive components, such as the driver of the corresponding lighting fixture, are easily damaged.

[0003] An additional drawback of currently known lighting fixtures that affects heat distribution is the number of components and their geometric arrangement, which may limit heat dissipation paths. Furthermore, in currently known lighting fixtures, measures for intrusion protection may be implemented in a relatively unfavorable manner regarding heat dissipation.

[0004] Furthermore, such known flat lighting equipment is typically used in areas with high ambient temperatures and corrosive atmospheres (e.g., in the food industry, warehouses, and humid spaces such as swimming pools and shower rooms), creating environments with poor heat dissipation and potential material degradation, which further leads to a potential decline in heat dissipation performance.

[0005] Therefore, the present invention relates to the task of providing an improved flat lighting device having improved heat distribution relative to the heat-sensitive components of the lighting device. This task is achieved by the lighting device according to independent claim 1. The invention is defined by the respective independent claims. Additional features of the invention are provided in the respective dependent claims.

[0006] According to the present invention, a flat lighting device is provided, which extends longitudinally along a longitudinal extension axis. Thus, the lighting device has a rear side and a front side, which extend longitudinally along the longitudinal extension axis at opposite sides of the longitudinal extension axis, respectively. The lighting device includes: a light source; a driver for driving the light source; a flat housing; and a driver housing. Thus, the flat housing defines a light source mounting space for accommodating the light source on its inner side, wherein the flat housing extends longitudinally along the longitudinal extension axis, and wherein the flat housing has: a body, to which the light source is mounted on the front-facing surface of the body inside the flat housing; and a light-emitting opening located on the front side for emitting light generated by the light source. Furthermore, the driver is mounted on the inner surface of the driver housing, wherein the driver housing is mounted on the rear side of the body.

[0007] In lighting devices constructed in this way, the components are arranged most advantageously because the heat dissipation of the light source is separated from the driver, thus locally isolating the two heat-generating components. Effective thermal separation is achieved by positioning a separate driver housing on the rear side of the lighting device and housing the light source within the device's casing. Therefore, the heat-sensitive component of the lighting device is separate and thus does not negatively impact the corresponding other components. This improves heat dissipation and heat removal.

[0008] In addition, a lighting system is provided comprising at least two flat lighting devices, each of which is according to any of the specific embodiments described herein. Thus, each pair of the at least two flat lighting devices is coupled together via an accessory plate to form an enlarged continuous flat lighting device.

[0009] Using this specific implementation, the advantageous implementation of the longitudinal planar lighting device can be used in a variety of lighting scenarios, and is therefore specifically used for lighting warehouse areas, the food industry, swimming pools and other damp spaces.

[0010] Optionally, the driver is mounted on a surface inside the driver housing opposite the rear side of the main body. Thus, since the driver is mounted on the surface opposite the rear side of the main body, the light source and therefore the associated heat emitter are arranged within that surface, further separating the heat dissipation of the driver and the light source.

[0011] Optionally, the drive enclosure includes a device carrier for mounting the drive and preferably also for mounting other electronic components, wherein the device carrier is mounted on the inner surface of the drive enclosure. This embodiment also provides a heat conduction and dissipation structure because the device carrier can shield the drive enclosure from heat from the adjacent sidewalls within the drive enclosure. Furthermore, assembly of the drive enclosure is facilitated by mounting only the pre-assembleable device carriers as units inside the drive enclosure. Thus, alternatively, the device carrier is substantially U-shaped in cross-sectional view, with the U-shaped opening facing the rear side of the body. This further simplifies the assembly and installation of the drive enclosure, and the sidewalls of the U-shaped device carrier can act as heat shields, which can also create air gaps with the sidewalls of the drive enclosure, further separating heat conduction and dissipation.

[0012] Optionally, the rear side of the body includes two threaded grooves extending parallel to the longitudinal extension axis, wherein the drive housing has a through-hole disposed at an edge region of the drive housing, wherein the drive housing is mounted on the rear side of the body via mounting bolts arranged to pass through corresponding through-holes that interact with the threads of the respective threaded grooves. This allows the drive housing to be easily, flexibly, yet durablely and rigidly mounted on the rear side of the lighting equipment housing. Further optionally, the section of the respective threaded groove where the corresponding mounting bolt is not placed is filled with a threaded groove cap that seals the respective threaded groove. With this embodiment, the threaded groove is further protected from external influences, particularly in harsh environments.

[0013] Alternatively, the rear side of the body may include only a corresponding threaded hole positioned where the corresponding drive housing is to be mounted; however, this implementation requires more manufacturing steps because such a construction may not be achievable, for example, through simple and cost-effective extrusion molding.

[0014] Optionally, the drive enclosure has a main body that forms a receiving space for at least accommodating the drive and preferably other electronic components. Further optionally, the drive enclosure is substantially U-shaped in cross-sectional view in a cross-section perpendicular to the longitudinal extension axis. This provides a protective structure for components placed inside the drive enclosure. Further optionally, the drive enclosure has a flange portion extending outward to form a flange, wherein, further optionally, a corresponding through-hole of the drive enclosure is arranged in the flange portion. With such an embodiment, structural rigidity is further improved, and mounting on the rear side of the main body is further facilitated.

[0015] Alternatively, the drive housing is made of plastic. This provides a cost-effective, durable, and robust enclosure for the drive and potentially other components.

[0016] Alternatively, the drive housing is centrally located on the flat housing along the longitudinal extension axis. This arrangement appears to be further advantageous in terms of aesthetics, as well as in terms of heat conduction and dissipation.

[0017] Optionally, the rear side of the body forms a cover for the drive housing, which covers the receiving space of the drive housing from the front side. Thus, the rear side of the body (i.e., the rearward-facing surface of the lighting device housing) covers the opening of the drive housing, such that the drive housing is closed when mounted outside the lighting device housing. Therefore, the lighting device housing (and correspondingly the body) has a dual function. Further optionally, an air gap exists between the rear side of the body and the drive. With this embodiment, heat dissipation separation is even more pronounced. Further optionally, the drive housing includes a gasket configured to interact with the rear side of the body and seal the receiving space of the drive housing to protect it from external influences. With this embodiment, the drive housing is sealed, thus protecting components disposed inside the drive housing from intrusion. Thus, the gasket can be configured to completely surround the opening of the drive housing when mounted on the lighting device housing, the opening being closed by the rear side of the body. This further improves intrusion protection and also further facilitates the decoupling of the driver and the light source in terms of heat conduction and dissipation.

[0018] Optionally, the driver enclosure includes a cable feeder configured to feed cables from the outside of the driver enclosure to the inside of the receiving space. This further simplifies the installation of the driver enclosure and its connection to the main power supply and / or other bus systems used for the control and communication of the lighting equipment.

[0019] Optionally, the drive enclosure can house other electronic components, such as energy storage devices, communication modules, and / or electrical connectors. This further enhances the versatility and installation flexibility of the flat lighting fixture.

[0020] Optionally, the flat lighting fixture includes two driver enclosures, each containing a corresponding driver. This can be useful in lighting scenarios using light sources that require high power, while also increasing the versatility of the lighting fixture, as different light sources can be controlled by different drivers. Furthermore, splitting it into two drivers can improve heat dissipation, as each driver may require less power.

[0021] Optionally, the rear side of the main body includes a connector for electrically connecting the driver to the light source. Thus, the connector is optionally configured to: serve as a connector through-hole with a wire electrically interconnecting the driver and the light source; and / or via an electronic contact, preferably interacting with an electrical connector of the driver housing, thereby electrically interconnecting the driver and the light source. This generally further simplifies the installation of the flat lighting device, and although the driver in the driver housing and the light source in the lighting device housing are separated, a correspondingly easy and efficient thermal separation is achieved.

[0022] Optionally, the flat housing is a profile body including a structured profile surface on its outer side. This increases the surface area, thus aiding in heat dissipation. Furthermore, the structured profile can be used to attach other components.

[0023] Optionally, the flat shell is formed by extrusion along the longitudinal axis and is preferably made of a metallic material, specifically aluminum. Since the flat shell, and therefore the body, is an aluminum profile body, the heat dissipation characteristics of the body are further improved because high thermal properties are achieved here, and additionally, the aluminum alloy that may be used is corrosion-resistant.

[0024] Optionally, the flat housing is coated with a desired color, and the white powder coating further facilitates heat dissipation of the flat lighting device, and specifically further facilitates heat dissipation of the flat housing, and thus further facilitates heat dissipation of the light source arranged therein. Furthermore, the white powder coating can additionally shield heat generated by the driver inside the driver housing, wherein the rear surface of the lighting device housing serves as a cover element for the driver housing.

[0025] Optionally, the light source includes an optical module having a plurality of light-emitting components, preferably such as LEDs, arranged on the optical module. Further optionally, the light source extends longitudinally along the extending axis. This embodiment provides further advantageous illumination while also reducing the corresponding heat generated by the light source.

[0026] Optionally, the light source may be arranged on a mounting surface of the body, wherein the mounting surface forms the front-facing surface of the body. This arrangement ensures that the light emission of the light source is directed toward the front side of the lighting device. Further optionally, the mounting surface may be a surface attached to an extension of the body protruding into the interior of the flat housing, the extension separating the mounting surface from the rear wall of the body, which forms the rear side of the body. With this embodiment, the mounting surface protrudes into the light source mounting space defined by the surrounding body of the lighting device housing, and this arrangement further decouples the heat generated by the light source from the body, thereby further separating the heat conduction of the corresponding heat source of the flat lighting device.

[0027] Optionally, the light-emitting opening of the flat housing is closed by a translucent front cover that interacts with the body. This provides some protection to the interior of the lighting device housing from intrusion, while further, optical structures can be arranged on the front cover for the desired lighting characteristics of the flat lighting device. More optionally, the body includes a retaining structure at a lateral edge near the light-emitting opening for holding the translucent front cover, which includes a corresponding retaining structure for interacting with the shape of the body. With this embodiment, the front cover's fixing device is designed to be extremely durable and easy to install. Additionally or alternatively, the flat lighting device includes mounting clamps for holding the translucent front cover to the body, preferably each of which is attached to the body via threaded bolts that interact with corresponding threaded grooves in the body. This specific implementation can be used for flat lighting equipment placed in harsh environments where foreign objects are expected to physically impact the flat lighting equipment, for example in stadiums, gymnasiums, and specifically in indoor tennis courts or football fields, because with this arrangement, the cover is further secured to the housing of the lighting equipment.

[0028] Optionally, the flat housing includes a sealing gasket attached to the body at a corresponding gasket retention structure on the inner side of the body, and the front cover is configured to interact with the sealing gasket to seal the light source mounting space from external influences. With this embodiment, the front side of the flat lighting device, and specifically the front side of the flat lighting device housing, is further protected from intrusion such as dust, water, or moisture, thereby protecting the components arranged on the inner side of the flat lighting device housing and ensuring the operability of the flat lighting device even in harsh environments.

[0029] Optionally, the flat lighting device further includes an optical arrangement comprising the front cover and preferably an optical arrangement (e.g., a reflector arrangement and / or a lens arrangement) having optical elements (e.g., lenses and / or reflectors), each optical element being assigned to a corresponding light-emitting component of the light module of the light source. This improves the versatility of the flat lighting device, as different lighting scenarios can be achieved with appropriately configured optical arrangements. Further optionally, the translucent front cover may include a contact structure configured to securely clamp the optical arrangement to the light source; or the optical arrangement may include a portion of the mounting surface of the body and a clamping element interacting with the optical arrangement, the clamping element being configured to securely clamp the optical arrangement to the light source. In any conceivable specific implementation, the optical arrangement is firmly fixed inside the lighting device housing. The configuration with additional clamping elements can be used in scenarios where vibrations to the flat lighting device may occur, as this provides further reinforcement.

[0030] Alternatively, the optical setup materials include plastics, specifically polycarbonate (PC) or glass. The materials used can thus vary depending on the specific scenario, and either plastic or polycarbonate materials can be used where they may be affected by other objects. Glass materials are suitable for scenarios where higher corrosion resistance of the flat lighting device is desired.

[0031] Optionally, the flat lighting device includes at least one end cap at the front end of the flat housing, the at least one end cap for closing the inner side of the flat housing to isolate it from the corresponding front end, and the corresponding at least one end cap may be attached to the body via an attachment screw that interacts with a corresponding threaded profile of the body. Thus, the side of the flat housing is also closed, thereby further increasing intrusion protection. Further optionally, the corresponding at least one end cap includes an end cap washer positioned inside the corresponding end cap for sealing the inner side of the flat housing to isolate it from the front end. This further improves the level of intrusion protection.

[0032] Optionally, the at least one end cap includes a protruding structure configured to apply pressure to the end cap gasket in the section where it directly contacts the body. Here, these features on the inward-facing surface of the end cap further enhance the sealing level, thereby further improving the seal by applying pressure to the end cap gasket (specifically, through the corresponding structure) between the flat lighting device housing and the respective end cap. Further optionally, the end cap gasket is made of solid silicon material, and / or the end cap gasket includes a structure corresponding to the protruding structure of the end cap. This further facilitates intrusion protection of the lighting device. The end cap may be formed of a material comprising polyamide.

[0033] Optionally, the flat lighting device also includes a functional housing attached to the front end of the flat housing, extending axially from the longitudinal extension axis of the flat housing. The functional housing includes a cover or functional elements, preferably one or any combination of a sensor, lighting control device, battery, and wireless control module, positioned inside the functional housing and / or on its front-facing surface. Therefore, using this functional housing, electronic components typically or previously placed inside the drive housing can be moved to the functional housing, thereby improving the heat dissipation of the flat lighting device. Furthermore, the versatility of the flat lighting device is enhanced because additional functional elements such as sensors and batteries enable other use cases.

[0034] Further optionally, the functional housing includes a connector on the side of the functional housing facing the flat housing, the connector being used to electrically connect a corresponding functional element to the light source and / or to the driver, and preferably the connector is configured as follows:

[0035] ○ Connector through-hole, which has a wire that electrically interconnects the corresponding functional element with the light source and / or with the driver, and / or

[0036] ○ An electronic contact, which preferably interacts with a corresponding electrical connector of the flat housing, thereby electrically interconnecting the corresponding functional element with the light source and / or with the driver.

[0037] These two specific implementations further simplify the installation of the functional box and the corresponding functional element with the flat lighting device, and although the functional element in the functional box, the light source in the lighting device housing, and the driver in the driver box are separated, a correspondingly easy and efficient thermal separation arrangement is achieved.

[0038] Alternatively, the functional enclosure includes a top shell component and a bottom shell component that can be attached together via screw elements, wherein the top shell component forms a rearward-facing surface and the bottom shell component forms a front-facing surface, and the top shell component and the bottom shell component can form a functional element receiving space inside the functional enclosure. This configuration achieves the most efficient and easy installation and attachment of the functional enclosure to the corresponding functional elements and lighting equipment housings.

[0039] Further optionally, the functional enclosure includes an opening cover opening to the front side of the flat lighting device, and preferably the opening cover is formed at the bottom housing member, and further optionally the opening cover may be removable, thereby providing through openings to the respective functional elements of the functional enclosure. This further simplifies the installation and maintenance of the functional enclosure, the functional elements, and therefore the entire flat lighting device.

[0040] Further optionally, a sealing gasket is arranged between the functional housing and the flat housing to seal the connection between them and protect it from external influences. Further optionally, this sealing gasket may be the same as the end cap gasket discussed earlier. Here, the sealing gasket is further optionally made of solid silicon material. This further enhances the intrusion protection for the entire flat lighting device. Here, the sealing gasket (and correspondingly the end cap gasket) may be arranged on both end sides of the flat lighting device (and correspondingly its flat housing) to achieve a further advantageous seal.

[0041] Alternatively, the functional box is made of a material including polyamide. With this embodiment, the functional box resists external influences and provides adequate protection for components arranged inside the functional box. Alternatively, the functional box is formed by injection molding. This further simplifies production and is also cost-effective.

[0042] Further optionally, the flat lighting device includes two functional boxes within the functional housing, wherein the functional boxes are attached to opposite axial faces of the flat housing. Therefore, various specific embodiments of the flat lighting device are conceivable, wherein two end caps are positioned on corresponding opposite axial faces of the lighting device housing, one end cap and one functional box are arranged on corresponding opposite axial faces of the lighting device housing, and the two functional boxes are also respectively arranged on opposite axial faces of the lighting device housing. This further improves the versatility of the flat lighting device.

[0043] Optionally, the flat lighting fixture includes at least two suspensions for mounting the flat lighting fixture to a corresponding wall, ceiling, or corresponding rope via corresponding mounting attachment surfaces. This simplifies the installation of the flat lighting fixture and further improves its versatility. Further optionally, each suspension may include a clamping structure for specifically reversibly shaped-fit coupling with the structured profile surface on the outer side of the body, and specifically for snap-fit ​​coupling. This further simplifies the assembly and installation of the flat lighting fixture while providing durable installation. Further optionally, the suspensions can be flexibly repositioned on the body parallel to the longitudinal extension axis. This improves the versatility of the flat lighting fixture's installation scenarios, while individual adaptations for corresponding weight imbalances, etc., can be easily adjusted by repositioning the suspensions.

[0044] Optionally, with respect to the lighting system, the corresponding accessory plate is arranged on the rear side of the body of the respective lighting device. This further improves the aesthetics of the flat lighting device and also increases the rigidity of the connection between the flat lighting devices. Further optionally, with respect to the lighting system, the corresponding accessory plate is coupled to the respective two flat lighting devices via screws, preferably interacting with the threaded grooves of the two flat lighting devices. This provides a particularly durable fixation and also simplifies the installation of the lighting system. Further optionally, with respect to the lighting system, the accessory plate includes a wire mount configured to hold corresponding wires that interconnect at least two corresponding flat lighting devices, and specifically interconnect at least two corresponding drivers of the at least two flat lighting devices. This further improves the installation of the lighting system.

[0045] Generally, the materials used for the gaskets and seals discussed in this disclosure can be sponge rubber; foam rubber; polyethylene; silicone resin; EPDM rubber; and / or PTFE. These materials can meet different requirements for the corresponding lighting conditions. Therefore, the sealing of the lighting equipment is further improved. Specifically, the housing can be sealed to meet specific intrusion protection levels, such as IP4x, IP5x, IP6x, IPx4, IPx5, IPx6, IPx7, IPx8 (where x is a placeholder). In a preferred embodiment, an IP rating preferably up to IP 66 can be achieved. However, even higher ratings (e.g., IP 67 or IP 68, etc.) are of course conceivable.

[0046] The invention is described in detail below with reference to examples of embodiments and the accompanying drawings. The drawings show:

[0047] Figure 1 A schematic illustration of an angled view from above of an exemplary embodiment of a flat lighting device according to the present invention;

[0048] Figure 2 A schematic illustration of an angled view from below of an exemplary embodiment of a flat lighting device according to the present invention;

[0049] Figure 3 Schematic illustration of side views along an extending axis of various exemplary embodiments of the flat lighting device and lighting system according to the present invention;

[0050] Figure 4 A schematic illustration of an angled view of the front side of the driver housing of an exemplary embodiment of a flat lighting device according to the present invention;

[0051] Figure 5A thermal diagram illustration of an angled view taken from above of a cross-sectional view along the longitudinally extending axis of an exemplary embodiment of a flat lighting device according to the present invention;

[0052] Figure 6 A schematic example of an exploded view of an exemplary embodiment of a flat lighting device according to the present invention;

[0053] Figure 7 A schematic illustration of an enlarged view of an exemplary embodiment of a flat lighting device according to the invention, showing the coupling between the driver housing and the flat lighting device housing, and also showing the suspension attached thereto;

[0054] Figure 8 A schematic illustration of an end face in a side view of an exemplary embodiment of a flat lighting device according to the present invention;

[0055] Figure 9A A schematic illustration in a cross-sectional view of an exemplary embodiment of a flat lighting device according to the present invention presents a view of the structural arrangement of an exemplary housing as viewed in a cross-section perpendicular to the extending axis;

[0056] Figure 9B A schematic illustration in a cross-sectional view of another exemplary embodiment of the flat lighting device according to the present invention presents a view of the structural arrangement of an exemplary housing as viewed in a cross-section perpendicular to the extending axis;

[0057] Figure 9C A schematic illustration in a cross-sectional view of another exemplary embodiment of the flat lighting device according to the present invention, presenting a view of the structural arrangement of an exemplary housing as viewed in a cross-section perpendicular to the extending axis;

[0058] Figure 10A From another exemplary embodiment of the flat lighting device according to the present invention Figure 9B A schematic illustration of a known angled view from above, presenting a view of the structural configuration of an exemplary housing;

[0059] Figure 10B From another exemplary embodiment of the flat lighting device according to the present invention Figure 9B and Figure 10A A schematic illustration of a known angled view from below, presenting a view of the structural arrangement of an exemplary housing;

[0060] Figure 11 Other exemplary embodiments of the flat lighting device according to the present invention Figure 9C A schematic illustration of a known angled view from below, presenting a view of the structural arrangement of an exemplary housing;

[0061] Figure 12 A schematic illustration of the arrangement of a functional box according to an exemplary embodiment of a flat lighting device of the present invention, and an angled view from above of the coupling between the functional box and the flat lighting device housing;

[0062] Figure 13 This is a schematic example of an exploded view of the end region of an exemplary embodiment of a flat lighting device according to the present invention, wherein the end cap, end cap washer and corresponding screw are separated from the flat lighting device housing.

[0063] Figure 3 Various exemplary embodiments of the flat lighting device 1 are shown, and the specific embodiments shown are not a complete list, but clearly indicate possible variations of the corresponding embodiments. Figure 1 and Figure 2 Different views of the same exemplary embodiment of the flat lighting device 1 are shown, wherein the illustrated embodiment is referred to as Figure 3 Exemplary implementation ii. Thus, in Figure 1 and Figure 2 In this exemplary embodiment, the flat lighting device 1 includes a flat housing 300 and a functional box 600, which is coupled to the housing 300 via a side surface. Furthermore, the lighting device 1 includes a driver box 400 mounted on the rear side R of the lighting device 1, and thus specifically mounted on the rear side R of the housing 300. Figure 1 and Figure 2 As illustrated, the side of the lighting device 1 opposite to the rear side R is marked as the front side F, and this marking is equally valid for individual components of the lighting device 1. Therefore, for example, the drive unit 400 also has a corresponding rear side R and a corresponding front side F. Figure 4 The drive housing 400 is shown exemplarily from its front side, visualizing an exemplary arrangement of the inner side I of the drive housing 400, and Figure 7 Detailed views are shown of the attachment of the drive housing 400 to the body 310 of the flat housing 300 and the attachment elements (such as the suspension 700 for mounting the lighting device 1 on a wall or ceiling). Figure 8 The configuration of an exemplary embodiment of the flat lighting device 1 is shown (shown as a view of the side surface of the longitudinal lighting device 1), illustrating a driver housing 400 mounted on the rear side R of the housing 300 and components arranged inside the housing 300 (such as, for example, a light source 100, an optical arrangement 500 having a front cover 530 and an optical arrangement 520, and a sealing gasket 515), as well as components attached to the body 310. Figure 5 The diagram illustrates an exemplary embodiment of the lighting device 1 during operation, using a heat map, and the configuration shown is consistent with... Figure 3 The exemplary implementation scheme is similar to that in iv. Figure 6An exemplary embodiment of the flat lighting device 1 is illustrated in an exploded view, and the specific embodiment shown also varies from... Figure 3 Exemplary implementation iii is known. Figure 9A , Figure 9B , Figure 9C , Figure 10A , Figure 10B and Figure 11 Different views of various exemplary embodiments of the lighting device 1 are shown, depicting in detail the coupling and arrangement of the optical setup 500 with the housing 300. Thus, Figure 10A and Figure 10B It shows from Figure 9B An angled view of a known exemplary schematic diagram, while Figure 11 It shows from Figure 9C A corresponding angled view of a known exemplary schematic diagram. Figure 12 Exemplary detailed diagrams are provided of an exemplary embodiment of a functional box 600 attached to a housing 300. Figure 13 An exemplary embodiment focuses on an end cap 800 mounted on the side surface of an exemplary embodiment of housing 300, wherein an exemplary end cap gasket 815 is disposed therebetween. Features shown or described with respect to one exemplary embodiment of the exemplary embodiments disclosed herein can also be transferred to other exemplary embodiments.

[0064] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As exemplarily shown, a flat lighting device 1 extends longitudinally along an extension axis L. The lighting device 1 has a rear side R and a front side F, which extend longitudinally along the extension axis L at opposite sides of the extension axis L, respectively. Specifically, each component of the flat lighting device 1 can be assigned a corresponding front side F and a rear side R, which correspond to the described front side F and rear side R of the lighting device 1. As specifically shown in 4 and 6, a driver 200 for driving the light source 100 of the lighting device 1 is positioned inside the driver housing 400 400. Thus, the driver 200 is mounted on the inner surface of the driver housing 400, which is mounted on the rear side R of the body 310. Furthermore, the flat housing 300 thereby defines a light source mounting space 301 for mounting and accommodating the light source 100, wherein the housing 300 extends longitudinally along the extending axis L, and wherein the housing 300 has a body 310, and the light source 100 is mounted to the body 310 on the front-facing surface F of the body 310 inside the flat housing 300, and a light emission opening 320 for emitting light from the light source 100 is accommodated in the housing 300 at the front side F. The body 310 thereby also forms the rear side R of the housing 300.

[0065] The light-emitting opening 320 of the flat housing 300 is thus closed by a translucent front cover 530 (correspondingly, a lens cover 530) that interacts with the main body 310. Thus, the front cover 530 forms a substantially plate-shaped light-emitting section of the lighting device 1, which has a plate-shaped main area and covers the light-emitting opening 320 of the housing 300 on the front side F, thereby closing the main body 310 (correspondingly, the housing 300) at the front side F. The front cover 530 can thus be part of the optical arrangement 500. Figure 5 , Figure 6 , Figure 8 , Figure 9A , Figure 9B , Figure 9C , Figure 10A , Figure 10B and Figure 11 As shown in more detail, the optical setup 500 may also include an optical arrangement 520 having optical elements 510, each optical element 510 being assigned a corresponding light emitting assembly 111 of the light module 110 of the light source 100. Elements 510 may also be implemented as other optical elements 510, such as lenses 510 and / or reflectors 510, etc. The optical setup 500 may be formed of glass or plastic materials (specifically, polycarbonate PC).

[0066] also Figure 1 and Figure 2 As shown, the drive housing 400 can substantially cover the entire rear side R of the flat housing 300, while other specific embodiments are also conceivable, such as Figure 3 As exemplified, the dimension of the drive housing 400 along the longitudinal axis L (i.e., the length of the drive housing 400) may be smaller (much smaller) than the dimension of the flat housing 300 along the longitudinal axis L (i.e., the length of the housing 300). The drive housing 400 is thus mounted on the rear side R of the body 310 via mounting bolts 390 (which may be implemented as screws or threaded bolts, etc.), which engage with a corresponding through-hole 495 of the drive housing 400 and interact with a corresponding threaded hole 395 of the body 310, thus mechanically and securely connecting the drive housing 400 to the flat housing 300. The drive housing 400 may also be centrally arranged on the flat housing 300 along the longitudinally extending axis L (see, for example...). Figure 3 Exemplary embodiments i, ii, iii, iv, and vi). In embodiments where the lighting device 1 includes a plurality of drivers 200 and therefore a plurality of driver housings 400, it is obviously not possible for the driver housings 400 to be centrally arranged on the flat housing 300 along the longitudinal extension axis L; however, it is conceivable here that the arrangement of the lighting device 1 is substantially mirror-symmetrical about a mirror axis / mirror plane perpendicular to the longitudinal extension axis L (e.g., see Exemplary embodiments i, ii, iii, iv, and vi). Figure 3 Exemplary implementation v).

[0067] For example, specifically in Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown in more detail, the driver housing 400 has a main body 412 that forms a receiving space 401 for at least receiving the driver 200 and other electronic components 250, 290 (such as communication module 250 and / or electrical connector 290). Thus, the driver housing 400 is substantially U-shaped in cross-sectional view in a cross section perpendicular to the longitudinal extension axis L, wherein the driver housing 400 includes a flange portion 411 extending outward from the main body 412 to form a flange, wherein the aforementioned through-hole 495 of the driver housing 400 is arranged in the flange portion 411.

[0068] Furthermore, specifically in Figure 4 , Figure 5 and Figure 6 As shown, the drive housing 400 includes a device carrier 420 for mounting the drive 200. Other electronic components 250 can also be mounted thereon. In the illustrated exemplary embodiment, the device carrier 420 is substantially U-shaped in cross-sectional view, with the opening of the U-shape facing the rear side R of the body 310. It is also conceivable that the device carrier 420 is simply plate-shaped, or may have an L-shape. Figure 4 and Figure 5 As shown in the exemplary embodiment, the device carrier 420 is mounted on the inner surface of the drive housing 400, wherein the device carrier 420 may be specifically mounted on the inner surface of the drive housing 400 opposite to the rear side R of the body 310. The drive 200 may thus be directly mounted to the drive housing 400 or mounted on the device carrier 420, wherein the drive 200 is preferably mounted on the surface opposite to the rear side R of the body 310.

[0069] For example, specifically in Figure 5 and Figure 6 As shown in the exemplary embodiment, the rear side R of the body 310 forms a cover for the drive housing 400, which covers the receiving space 401 of the drive housing 400 from the front side F of the drive housing 400. Therefore, no additional cover element is needed to cover the opening of the drive housing 400, as the body 310 itself acts as such a cover enclosing the interior of the drive housing 400. Thus, the drive housing 400 is directly mounted to the housing 300. Therefore, the overall size of the lighting device 1 can be kept relatively low, which further improves the versatility of the lighting device 1, as it can be installed in various scenarios, including those with limited installation space. Furthermore, the absence of an additional cover further reduces the production cost and weight of the lighting device.

[0070] In this respect, the housing 300 (correspondingly, the body 320) may include a threaded groove 395 extending parallel to the longitudinal extension axis L on the rear side R of the body 310. Figure 7 , Figure 8 , Figure 9A , Figure 9B , Figure 9C , Figure 10A , Figure 10B , Figure 11 and Figure 13 In the exemplary embodiment shown, the housing 300 thus specifically includes two threaded grooves 395 on two edge regions on the rear side R of the housing 300 along the longitudinally extending axis L. These threaded grooves 395 further facilitate the assembly of the lighting device 1.

[0071] Thus, the drive housing 400 can be coupled to the housing 300 via threaded mounting bolts 390 that interact with corresponding threaded grooves 395. Here, the drive housing 400 has through-holes 495 disposed at the edge region of the drive housing 400 (specifically at the flange portion 411 of the drive housing 400), wherein the mounting bolts 390 are arranged to pass through the corresponding through-holes 495 that interact with the threads of the corresponding threaded grooves 395. Other components (such as mounting clamps 350 for the reinforcement structure for the connection of the front cover 530) can also be secured via connection with the threaded grooves 395, such as… Figure 9B , Figure 9C , Figure 10A , Figure 10B and Figure 11 This is shown in detail.

[0072] Therefore, in the exemplary embodiment where the drive housing 400 is directly mounted on the rear side R of the body 310 (correspondingly, the housing 300) and the body 310 (correspondingly, the housing 300) acts as a cover for closing the drive housing 400, an air gap exists between the rear side R of the body 310 and the drive 200 to further improve heat separation and thus achieve more efficient heat dissipation. This further separates the heat dissipation path.

[0073] Thus, it can be further implemented that the rear side R of the body 310 includes a connector for electrically connecting the driver 200 to the light source 100. Such a connector is not shown in the provided drawings, but the following specific embodiments are conceivable as alternatives or combinations:

[0074] • The connector is configured as a connector through-hole having a wire that electrically interconnects the driver 200 with the light source 100;

[0075] • The connector is configured as an electronic contact that preferably interacts with the electrical connector 290 of the driver housing 400 to electrically interconnect the driver 200 with the light source 100.

[0076] In addition, a gasket 415 is used between the drive housing 400 and the housing 300. The gasket 415 thus interacts with both the drive housing 400 and the rear side R of the body 310, and is thereby configured to seal the receiving space 401 of the drive housing 400 to protect it from external influences.

[0077] In such a specific embodiment where the threaded groove 395 exists, it is further exemplarily conceivable that the section of the corresponding threaded groove 395 where the corresponding screw or bolt will not be placed is filled with a threaded groove cover, which may be specifically configured to seal the corresponding threaded groove 395, an exemplary embodiment not shown in the accompanying drawings.

[0078] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As further shown, the drive housing 400 may include a cable feeder 480 configured to feed a cable from the outer side O of the drive housing 400 to the inner side I of the presence receiving space 401 of the drive housing 400. Here, connections from the external entity to the drive 200 or other electrical components 250, 290 of the drive housing 400 can be realized.

[0079] As shown in the exemplary embodiments in the accompanying drawings, the flat housing 300 may be a profile body comprising a structured profile surface on the outer side O of the body 310, and the flat housing 300 may be further formed by extrusion along the longitudinal axis L. Regarding heat dissipation and heat exhaust, and the production of the housing 300, metal is a preferred material choice. Thus, it is also conceivable that the housing 300 is coated with a powder coating, which may have any desired color. However, a powder coating with a white powder coating further improves the thermal properties of the lighting device 1. As further shown in the drawings, the body 310 includes structured sidewalls extending parallel to the extension axis L. These sidewalls project from the base of the body 310 forming the rear side R of the lighting device 1 toward the front side F. Furthermore, as described in detail in the various illustrated exemplary embodiments, the connection to the front cover 530 of the lighting device 1 is thus achieved via the interaction of the cover 530 with the sidewalls of the housing 300.

[0080] In addition, such as Figure 2 , Figure 5 , Figure 6 , Figure 8 , Figure 9A , Figure 9B , Figure 9C and Figure 11 As shown, the light source 110 extends longitudinally along the extension axis L. Furthermore, the light source 100 may include an optical module 110 having a plurality of light emitting components 111, preferably such as LEDs, arranged on the optical module 110. Additionally, the light source 100 is arranged on the mounting surface 312 of the body 310. As shown in... Figure 8 , Figure 9A , Figure 9B , Figure 9C , Figure 10A , Figure 10B and Figure 11 Specifically, as shown, the mounting surface thus protrudes into the light source mounting space 301 of the housing 300, such that the mounting surface 312 is not placed directly on the inner surface wall of the body 310, but is connected to the body 310 via an extension surface 311 that substantially protrudes into the light source mounting space 301. Therefore, as seen in a cross-sectional view of the housing 300 perpendicular to the longitudinal extension axis L (e.g.) Figure 8 , Figure 9A , Figure 9B , Figure 9C As shown), the general extension direction of the corresponding extension surface 311 is substantially perpendicular to the extension direction of the corresponding mounting surface 312. Therefore, in the illustrated exemplary embodiment, the mounting surface 312 is the surface attached to the extension surface 311 protruding into the flat housing 300 of the body 310, while the extension surface 311 separates the mounting surface 312 from the rear wall of the body 310, which forms the rear side R of the body 310. This rear wall of the body 310 is thus coupled to the extension surface 311 on the inner side I of the housing 300 and to the drive housing 400 on its outer rear side R. Furthermore, the mounting surface 312 forms a surface facing the front side F, such that the light source 100 placed thereon emits light toward the front side F (i.e., toward the light emission opening 320).

[0081] In addition, such as Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 8 As shown, the flat lighting device 1 may include at least one end cap 800 at the front end of the flat housing 300, which is used to close the inner side I of the flat housing 300 to isolate it from the corresponding front end, and the corresponding at least one end cap 800 is specifically attached to the body 310 via an attachment screw 890, whereby the attachment screw 890 interacts with a corresponding threaded hole profile 316 of the body 310. Figure 13An exemplary embodiment of such an end cap 800 assembly is shown. The end cap 800 is thus ideally equipped with an end cap gasket 815 positioned inside the respective end cap 800 for sealing the inner side I of the flat housing 300 to isolate it from the front end. At least one end cap 800 includes a protruding structure configured to apply pressure to the end cap gasket 815 in the section where it directly contacts the body 310 when mounted to the housing 300. Therefore, it is also conceivable that, additionally or alternatively, the end cap gasket 815 includes a structure corresponding to the protruding structure of the end cap 800. The end cap gasket 815 may be made of solid silicon material.

[0082] Furthermore, the flat lighting device may also include a function box 600 attached to the front end of the flat housing 300, extending axially from the longitudinal extension axis side of the flat housing 300. Such specific embodiments are described in... Figure 1 , Figure 2 , Figure 3 (Implementation plans ii, iii, vi) Figure 6 and Figure 12 The following is exemplarily illustrated. Thus, the functional housing 600 includes a blank cover or functional element 660. This blank cover can thus serve as a placeholder for potentially integrating the functional element 660 into a future lighting scenario of the lighting device 1. Furthermore, the functional element 660 does not necessarily have to be directly visible, as it can be fully integrated inside the functional housing 600. However, it is certainly conceivable that the functional element 660 protrudes from or is placed outside the functional housing 600 (i.e., the functional element 660 can be positioned inside the functional housing 600 and / or on the forward-facing F surface of the functional housing 600). Specifically, the functional element 660 can be implemented as a sensor, a lighting control device, a battery, a wireless control module, or any combination thereof. Further exemplary embodiments of the functional element 660 will be described in this regard. Here, the functional element 660 may specifically be at least one of the following: a high-frequency (HF) sensor, a microwave (MW) sensor (specifically, a MW sensor with a variable frequency), a battery compartment including a battery (and possibly a battery charger), an emergency lighting module (specifically, a 3-hour emergency lighting module, possibly including dimming capability and / or a DALI interface), or a passive infrared sensor (possibly with an integrated daylight sensor). Furthermore, it is conceivable that the lighting device 1 may include embodiments comprising two functional boxes 600, each comprising the same or different functional elements 660, thereby enhancing the versatility of the lighting device 1.

[0083] like Figure 12As indicated, the functional housing 600 may include a connector 610 on the side of the functional housing 600 facing the flat housing 300, which is used to electrically connect a corresponding functional element 660 to the light source 100 and / or to the driver 200. Different specific implementations of the connector 610 are contemplated here, and the following two options will be mentioned exemplary. First, the connector may be implemented via a connector through-hole having wires that electrically interconnect the corresponding functional element 660 to the light source 100 and / or to the driver 200. Alternatively or additionally, the connector may also be implemented via electronic contacts, which preferably interact with a corresponding electrical connector of the flat housing 300 to electrically interconnect the corresponding functional element 660 to the light source 100 and / or to the driver 200.

[0084] exist Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 12 In the exemplary embodiment shown, the functional housing 600 includes a top shell component 680 and a bottom shell component 670 attached together via screw elements 690. The top shell component 680 forms a rearward-facing surface R, and the bottom shell component 670 forms a frontward-facing surface F. The top shell component 680 and the bottom shell component 670 form a functional element receiving space inside the functional housing 600, in which one or more functional elements 660 can be positioned.

[0085] Furthermore, the functional housing 600 may include an opening cover leading to the front side F of the flat lighting device 1, and the opening cover may be specifically formed at the bottom housing member 670. Here, the opening cover may be removable, thereby providing a through opening for the corresponding functional element 660 of the functional housing 600 to protrude from the inner side I of the functional housing 600 to its outer side O.

[0086] Similar to the end cap 800, a sealing gasket 615 is preferably arranged between the functional housing 600 and the flat housing 300 to provide corresponding intrusion protection against external influences by sealing the connection between the functional housing 600 and the flat housing 300. Therefore, specifically, it is conceivable that the sealing gasket 615 is the same as the end cap gasket 815. Preferably, the sealing gasket 615 is made of solid silicon material.

[0087] Therefore, in an exemplary embodiment of the flat lighting device 1, it is also possible for the two functional boxes in the functional box 600 to be arranged on corresponding opposite side ends of the housing 300 (i.e., the functional box 600 is attached to opposite axial face sides of the flat housing 300). Furthermore, it is conceivable that a specific embodiment of the lighting device 1 has two end caps 800 at corresponding front ends of the housing 300. A combination of these is also possible, i.e., having one end cap 800 and one functional box 600.

[0088] Furthermore, the flat lighting fixture 1 may include two suspensions 700 for mounting the flat lighting fixture 1 to a corresponding wall, ceiling, or corresponding rope via corresponding mounting attachment surfaces 710. Each suspension 700 may include a clamping structure 720 for preferably reversibly shaped-fit coupling with a structured profile surface on the outer side O of the body 310, and preferably for snap-fit ​​coupling. Thus, the clamping structures 720 are arranged on opposite ends of the bow-shaped suspensions 700, such as... Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 8 This is clearly shown in the diagram. Furthermore, the suspension 700 can be flexibly repositioned on the body 310 parallel to the longitudinal extension axis L, enabling different installation scenarios.

[0089] according to Figure 3 It is evident that the lighting device 1 can be implemented in various configurations in terms of its size and components. For example, from... Figure 3 As is apparent in exemplary embodiments i to v, the housing 300 can have different lengths (dimensions along the longitudinally extending axis L), which can be readily achieved specifically when the housing 300 is produced via extrusion molding. Furthermore, depending on the length of the lighting device 1, the suspension 700 can be easily positioned as needed. Additionally, different light sources 100 can be implemented, which may require a second driver 200, and therefore a second driver housing 400, such as... Figure 3 As exemplary embodiment v is shown. As shown in embodiments ii, iii and vi, the lighting device 1 may include (at least) a functional box 600 that may be equipped with functional elements 660.

[0090] As further indicated by exemplary embodiment vi, the arrangement of lighting system 1000 is also conceivable, in which at least two lighting devices 1 are connected to each other via accessory plates 900 to form an extended continuous flat lighting system. Specifically, lighting devices 1 having the same or different light sources 100 can be combined according to the corresponding desired lighting characteristics of lighting system 1000. Thus, the corresponding accessory plates 900 are arranged on the rear side R of the corresponding bodies 310 of the corresponding (at least) two flat lighting devices 1. The plate 900 can thus be coupled to the lighting devices 1 via screws, which are preferably configured to interact with the threaded grooves 395 of the corresponding two flat lighting devices 1. Furthermore, it is conceivable that accessory plates 900 include wire mounts configured to hold the corresponding wires and cables that interconnect the corresponding at least two flat lighting devices 1 and, specifically, the corresponding at least two drivers 200 of the at least two flat lighting devices 1. Therefore, with this embodiment, the longest and most customized lighting system 1000 can be achieved. This further improves the versatility of the corresponding lighting devices 1 and the versatility of lighting system 1000.

[0091] according to Figure 8 , Figure 9A , Figure 9B , Figure 9C , Figure 10A , Figure 10B and Figure 11 Furthermore, the configuration and assembly of the components inside the housing 300 are shown to vary depending on the specific requirements of the lighting device 1. Specifically, different embodiments of the light-emitting section (correspondingly, the light-emitting opening 320 and the optical arrangement 500 with a front cover 530 arranged within it, and the optical arrangement 520 with optical elements 510) are shown. While generally similar to each other, the main difference between the different embodiments shown is the specific configuration of the corresponding structures and elements used to hold the optical arrangement 500 in place.

[0092] Figure 8 and Figure 9AThe specific implementation is thus most similar, and the two figures show the configuration of an integrally formed translucent cover 530 with contact structures 531, which are laterally positioned and integral components of the corresponding plate-shaped main areas of the cover 530. It should be noted here that the arrangement of the housing 300, the optical arrangement 500, and preferably the light source 100 are substantially symmetrical about the longitudinally extending axis L, thus forming a mirror surface. Consequently, these contact structures 531 protrude inward into the inner side I of the housing 300, i.e., these contact structures 531 protrude toward the light source mounting space 301. These contact structures 531 are thus configured to contact the optical arrangement 520 to push the optical arrangement 520 toward the light source 100 and securely clamp the optical arrangement 520. The pressure applied by the front cover 530 to the optical arrangement 520 via the contact structures 531 can further be used to hold and securely position the light source 100 in a suitable position on the corresponding mounting surface 312 of the body 310 inside the housing 300. In this respect, the positioning element 550 can be implemented together with the optical arrangement 520 to potentially apply pressure to the light source 100 together with the optical elements 510 (e.g., lens 510, reflector 510). Furthermore, the front cover 530 includes retaining structures 533, 534, which are also laterally positioned and integral parts of the respective plate-shaped main areas of the cover 530. These retaining structures 533, 534 interact with corresponding retaining structures 315, each existing at a lateral edge of the body 310, near the light-emitting opening 320. Here, the retaining structures 533, 534 clamp the front cover 530 to the body 310. The element 534 correspondingly forms an edge segment of the plate-shaped main area of ​​the cover 530 and is pressed against the retaining structure 315 of the body 310 due to the contact between the clamping element 533 and the opposing surface of the corresponding retaining structure 315 of the body 310 and the application of force on that opposing surface. Furthermore, the retaining structure 315 can also be configured to prevent lateral movement of the front cover 350, thus securing the cover 350 in a fixed position. This can be achieved through a stepped structure of the retaining structure 315, such as... Figures 8 to 11 Specifically shown. Thus, the shape-fitting interaction with the body 310 is achieved via the retaining structure 315 of the body 310 and the corresponding retaining structures 533 and 534 of the front cover 530.

[0093] like Figure 8 (and others) Figure 9A , Figure 9B , Figure 9C , Figure 10A , Figure 10B and Figure 11As shown, the lighting device 1 (specifically, the flat housing 300) also includes a sealing gasket 515 attached to the body 310 at a corresponding gasket retaining structure 314 on the inner side I of the body 310, while the front cover 530 is configured to interact with the sealing gasket 515, thereby sealing the light source mounting space 301 to protect it from external influences. Thus, the seal is performed by the elongated sealing gasket 515 through its interaction with the front cover 530 (and correspondingly with a dedicated section of the front cover 530). Figure 8 In this process, the seal is performed via a corresponding sealing structure 532, which is an integral part of the plate-shaped main area of ​​the front cover 530 and is laterally positioned on the plate-shaped main area. Thus, these sealing structures 532 protrude inward into the inner side I of the housing 300 and are therefore arranged on the rear side R of the front cover 530. Therefore, a seal is performed on the inner side I of the housing 300 via the interaction between the corresponding sealing structure 532 and the sealing gasket 515. The sealing structure 532 is thus preferably also configured to be elongated and extend along the entire dimension of the sealing gasket 515 to achieve the most preferred effective seal.

[0094] about Figure 8 The exemplary configuration illustrates that the subsequent coupling between the retaining structures 533, 534 of the optical arrangement 500 and the retaining structure 315 (first outer barrier) of the body 310, as well as the coupling interaction between the sealing structure 532 and the sealing gasket 515 (second inner barrier), forms two barriers preventing intrusion from the outer side O of the housing 300. Thus, using these two barriers, multiple instances of sealing the interior I of the housing 300 are achieved, resulting in further enhanced intrusion protection. These two barriers can thus further form an anterior chamber therebetween, which further prevents dust, moisture, water, and other objects from intruding into the light source mounting space 301.

[0095] Figure 9A The specific implementation shown is basically the same as Figure 8 The configuration is matched, but the embodiment shown does not include such a dedicated sealing structure 532 that protrudes inward. Furthermore, a sealing gasket 515 is also arranged at the lateral edge of the body 310, near the light-emitting opening 320, while the gasket retaining structure 314 and the retaining structure 315 of the body 310 move closer together and are essentially combined. Here, as in Figure 9A It is evident that, due to the contact and application of force between the clamping element 533 and the corresponding structures 314 and 315 (specifically, the washer retaining structure 314) of the body 310, the edge segment 534 of the plate-shaped main region of the cover 530 is pressed against the retaining structures 314, 315 of the body 310. Therefore, with Figure 8In contrast, the specific implementation of Figure 9 is simplified in this respect, making the setup less prone to damage due to the removal and assembly of components. When the sealing gasket 515 is attached to the body 310 at the gasket retaining structure 314, this coupling of the front cover 530 simultaneously seals the interior of the housing 300. The specific implementation of the contact structure 531 that interacts with the optical arrangement 520 is substantially the same, while the configuration shown visualizes the corresponding dedicated contact structure 531 and clamping element 533 protruding from the same side of substantially the same region of the front cover 530 at different angular directions (the contact structure 531 faces the optical arrangement 520 at an inward angle, and the clamping element 533 is angled toward the lateral sidewall of the body 310, where the corresponding structures 314 and 315 of the body 310 are located).

[0096] other Figure 9B and Figure 9C (Correspondingly, Figure 10 is shown.) Figure 10B and Figure 11 The specific implementation of the different viewpoints in the text is similar to the above on a smaller scale. Figure 8 and Figure 9A The exemplary implementations discussed are different.

[0097] Here Figure 9B (correspondingly, Figure 10A and Figure 10B In the lighting fixture 1, additional mounting clamps 350 are included for additionally clamping a translucent front cover 530 to a body 310. Here, each mounting clamp 350 is attached to the body 310 via a threaded bolt 355 (or screw, etc.) that interacts with a corresponding threaded groove 395 of the body 310. Each clamp 250 is thus configured to apply pressure to the front cover 350, thereby additionally supporting the fixation of the front cover 350. Depending on the length of the lighting fixture 1, it may be desirable to use a correspondingly sufficient number of clamps 350 on each side of the cover 530, and for example in… Figure 3 In specific implementations of schemes i and ii, a total of four clamps (two clamps on each side) are sufficient, while as the length increases, it may be desirable to increase the number of clamps 350 (e.g., six, eight, or ten clamps 350 in total, etc.) (e.g., schemes iv and v: eight clamps in total). These clamps 350 achieve a further rigid attachment of the front cover 530 (correspondingly, the optical setup 500) to the housing 300. This is particularly desirable in scenarios where physical impact on the lighting equipment is anticipated (e.g., in ball sports environments, etc.). With this setup, the optical setup 500 (specifically, the front cover 530) is formed of an impact-resistant (or shockproof) material (such as plastic, e.g., polycarbonate). Figure 10A and Figure 10B Specific implementations of the interior of housing 300 and coupling with optical setup 500 are provided, as well as different viewing angles of additional mounting fixture 350 attached to housing 300.

[0098] Figure 9C (correspondingly, Figure 11 Another exemplary embodiment is provided, in which the front cover 530 is formed of a durable glass material. Due to the composition of this material, the previously described protruding elements (such as contact structure 531, clamping element 533, and sealing structure 532) are difficult to manufacture in a single piece, which is generally economically impractical and introduces stability issues when formed from glass. Therefore, specifically in environments requiring high corrosion resistance of the lighting device 1, the front cover 530 is configured as a flat plate made of durable glass. Here, the edge section 534 of the cover 250 still acts as a retaining structure in contact with the body 310 (and specifically with the corresponding structures 314 and 315, and therefore also with the sealing gasket 515), while the cover 530 is attached to the housing 300 here only via the aforementioned mounting clamp 350, which is preferably attached to the housing 300 via a threaded bolt 355 (or screw, etc.) that interacts with the corresponding threaded groove 395 of the body 310. These clamps 350 hold the plate-shaped main area of ​​the front cover 530 in place by pushing the corresponding edge segments 534 into the interior I of the housing 300 and thus into the gasket 515. Therefore, a greater number of mounting clamps 350 may be required for a rigid and stable connection. Since the front cover 530 does not provide any support for other elements of the optical setup 500 in this exemplary embodiment, the optical setup 500 here also includes a portion of the mounting surface 312 of the body 310 and clamping elements 537 that interact with the optical arrangement 520, such as… Figure 9C and Figure 11 Specifically illustrated. Thus, the clamping element 537 is configured to securely clamp the optical arrangement 520 to the light source 100, and similarly, the optical arrangement 550 may include a corresponding positioning element 550 that holds and positions the light source 110 (together with the optical arrangement 520 (correspondingly, the optical element 510)) in the appropriate position on the mounting surface 312. Figure 11 It provides specific implementations of the interior of housing 300 and coupling with optical setup 500, as well as different viewing angles of additional mounting fixture elements 350 and 537 attached to housing 300.

[0099] In a specific implementation of the lighting device 1, the drive unit 400 and the housing 300 are of substantially the same length (see [reference]). Figure 3 In embodiments i and ii), the clamp 350 may be mounted to the drive housing 400 (e.g., mounted on the flange portion 411), or may be mounted between the drive housing 400 and the rear side R of the housing 300.

[0100] A corresponding specific implementation independent of the light emission section (correspondingly, of the optical setup 500), Figures 9A to 11 The optical setup 500 shows that each of the exemplary embodiments is adapted to the same housing 300, making flexible configurations of the corresponding lighting device 1 possible.

[0101] Regarding material selection, it is conceivable that the drive housing 400 is made of plastic, and the function housing 600 is also made of materials including polyamide. Furthermore, the function housing 600 can be formed by injection molding.

[0102] Therefore, various specific embodiments of such a lighting device 1 are presented, each designed to improve heat dissipation and thus also improve the operational flexibility of the lighting device 1. Schemes for the lighting device 1 are thus presented, including corresponding configurations regarding the thermal separation of individual components. Here, heat sources (such as the light source 100 and its heat sink, housing 300, and driver 200) are spaced apart from each other while maintaining a flat and thin lighting device 1. High output power can be achieved according to the corresponding embodiments. Furthermore, configurations for improving the sealing of the lighting device 1 and configurations for further improving the assembly and installation of the lighting device 1 are provided. Unless otherwise stated, the corresponding features shown in the different embodiments are thus interchangeable.

Claims

1. A flat lighting device (1), said flat lighting device extending longitudinally along a longitudinal extension axis (L), The lighting device (1) has a rear side (R) and a front side (F), which extend longitudinally along the longitudinal extension axis (L) at opposite sides of the longitudinal extension axis (L), respectively. The lighting device (1) mentioned above includes: • Light source (100); • Driver (200), the driver is used to drive the light source (100); • Flat housing (300), the flat housing defines a light source mounting space (301) for accommodating the light source (100) on the inner side (I) of the flat housing (300). The flat housing (300) extends longitudinally along the longitudinal extension axis (L), and The flat housing (300) described therein has: ○ The main body (310), and the light source (100) is mounted to the main body (310) on the surface of the main body (310) facing the front side (F) inside the flat housing (300) (I), and ○ Light emission opening (320), the light emission opening is located at the front side (F) and is used to emit light generated by the light source (100); • A drive housing (400), wherein the drive (200) is mounted on the inner surface of the drive housing (400), wherein the drive housing (400) is mounted on the rear side (R) of the body (310).

2. The flat lighting device according to claim 1, The drive (200) is mounted on the inner side of the drive housing (400) on the surface opposite the rear side (R) of the body (310); Preferably, the drive housing (400) includes a device carrier (420) for mounting the drive (200) and preferably also for mounting other electronic components (250, 290), wherein the device carrier (420) is mounted on the inner surface of the drive housing (400); More preferably, the device carrier (420) is substantially U-shaped in cross-sectional view, wherein the opening of the U-shape faces the rear side (R) of the body (310).

3. The flat lighting device according to any one of claims 1 and 2, The rear side (R) of the body (310) includes two threaded grooves (395) extending parallel to the longitudinal extension axis (L), wherein the drive housing (400) has a through hole (495) disposed at an edge region of the drive housing (400), wherein the drive housing (400) is mounted on the rear side (R) of the body (310) via mounting bolts (390) arranged to pass through the corresponding through hole (495) interacting with the threads of the corresponding threaded grooves (395). Preferably, the section of the corresponding threaded groove (395) where the corresponding mounting bolt (390) is not placed is filled with a threaded groove cover, which preferably seals the corresponding threaded groove (395).

4. The flat lighting device according to any one of the preceding claims, The drive housing (400) has a main body (412) that forms a receiving space (401) for at least receiving the drive (200) and preferably receiving other electronic components (250, 290). Preferably, the drive housing (400) is substantially U-shaped in cross-sectional view in a cross section perpendicular to the longitudinal extension axis (L); Preferably, the drive housing (400) has a flange portion (411) that extends outward to form a flange, and more preferably, the through hole (495) of the drive housing (400) is arranged in the flange portion (411); Furthermore, the drive housing (400) is preferably made of plastic material; More preferably, the drive housing (400) is centrally arranged on the flat housing (300) along the longitudinal extension axis (L).

5. The flat lighting device according to claim 4, The rear side (R) of the body (310) forms a cover of the drive housing (400), which covers the receiving space (401) of the drive housing (400) from the front side (F) of the drive housing (400). Preferably, an air gap exists between the rear side (R) of the body (310) and the driver (200); Preferably, the drive housing (400) includes a gasket (415) configured to interact with the rear side (R) of the body (310) and seal the receiving space (401) of the drive housing (400) to protect it from external influences.

6. The flat lighting device according to any one of claims 4 and 5, The drive housing (400) includes a cable feeder (480) configured to feed a cable from the outside (O) of the drive housing (400) to the inside (I) of the receiving space (401) of the drive housing (400); and / or The drive enclosure (400) houses other electronic components (250, 290), such as energy storage devices, communication modules (250), and / or electrical connectors (290); and / or The flat lighting device (1) mentioned therein includes two driver boxes (400), each driver box including a corresponding driver (200).

7. The flat lighting device according to any one of the preceding claims, The rear side (R) of the body (310) includes a connector for electrically connecting the driver (200) to the light source (100); Preferably, the connector is configured such that, as a connector through-hole, the connector through-hole has a wire that electrically interconnects the driver (200) with the light source (100); and / or via an electronic contact, which preferably interacts with an electrical connector (290) of the driver housing (400), thereby electrically interconnecting the driver (200) with the light source (100).

8. The flat lighting device according to any one of the preceding claims, The flat shell (300) is a profile body, which includes a structured profile surface on the outer side (O) of the body (310); Preferably, the flat shell (300) is formed by extrusion along the longitudinal axis (L), and is preferably made of a metallic material, specifically aluminum, and more preferably the flat shell (300) is coated with a white powder coating.

9. The flat lighting device according to any one of the preceding claims, The light source (100) includes an optical module (110) having a plurality of light emitting components (111) arranged on the optical module (110), preferably such as LEDs; The light source (100) is arranged on the mounting surface (312) of the main body (310); The mounting surface (312) forms the surface of the body (310) facing the front side (F); and Preferably, the mounting surface (312) is a surface attached to the body (310) and protruding into the inner side of the flat housing (300), wherein the extended surface (311) separates the mounting surface (312) from the rear wall of the body (310), the rear wall forming the rear side (R) of the body (310); and Preferably, the light source (110) extends longitudinally along the extension axis (L).

10. The flat lighting device according to any one of the preceding claims, The light-emitting opening (320) of the flat housing (300) is closed by a translucent front cover (530) that interacts with the body (310); Preferably, the body (310) includes a retaining structure (315) at a lateral edge of the body (310) near the light-emitting opening (320), the retaining structure for retaining the translucent front cover (530), the translucent front cover (530) including corresponding retaining structures (533, 534) for interacting with the shape of the body (310), wherein additionally or alternatively, the flat lighting device (1) includes mounting clamps (350) for clamping the translucent front cover (530) to the body (310), and preferably the mounting clamps (350) are each attached to the body (310) via threaded bolts (355) that interact with corresponding threaded grooves (395) of the body (310).

11. The flat lighting device according to claim 10, The flat housing (300) includes a sealing gasket (515) attached to the body (310) at a corresponding gasket retaining structure (314) on the inside of the body (310), and the front cover (530) is configured to interact with the sealing gasket (515) to seal the light source mounting space (301) from external influences.

12. The flat lighting device according to any one of claims 10 or 11, The flat lighting device (1) further includes an optical arrangement (500) which includes the front cover (530) and preferably includes an optical arrangement (520) having optical elements (510), and each optical element (510) is assigned to a corresponding light emitting component (111) of the light module (110) of the light source (100). Further preferred embodiments: • The translucent front cover (530) includes a contact structure (531) configured to securely clamp the optical arrangement (520) to the light source (100); or • The optical arrangement (500) includes a portion of the mounting surface (312) of the body (310) and a clamping element (537) that interacts with the optical arrangement (520), the clamping element (537) being configured to securely clamp the optical arrangement (520) to the light source (100). The optical setup (500) is further preferably made of plastic, specifically polycarbonate (PC) or glass.

13. The flat lighting device according to any one of the preceding claims, The flat lighting device (1) includes at least one end cap (800) at the front end of the flat housing (300), the at least one end cap being used to close the inner side (I) of the flat housing (300) to isolate it from the corresponding front end, and the corresponding at least one end cap (800) is preferably attached to the body (310) via an attachment screw (890), and preferably the attachment screw (890) interacts with a corresponding threaded hole profile (316) of the body (310); Preferably, the corresponding at least one end cap (800) includes an end cap gasket (815) positioned inside the corresponding end cap (800) for sealing the inner side (I) of the flat housing (300) to isolate it from the front end. Preferably, at least one end cap (800) includes a protruding structure configured to apply pressure to the end cap gasket (815) in the section where the end cap gasket (815) directly contacts the body (310). Preferably, the end cap gasket (815) is made of solid silicon material, and / or the end cap gasket (815) includes a structure corresponding to the protruding structure of the end cap (800).

14. The flat lighting device according to any one of the preceding claims, The flat lighting device (1) further includes a function box (600) attached to the front end of the flat housing (300) and extending axially from the longitudinal extension axis of the flat housing (300). The function box (600) includes a blank cover or a function element (660), which preferably includes one or any combination of a sensor, a lighting control device, a battery, a wireless control module, and the function element (660) is positioned inside the function box (600) and / or on the forward-facing (F) surface of the function box (600). Preferably: • The functional housing (600) includes a connector (610) on the side of the functional housing (600) facing the flat housing (300), the connector being used to electrically connect a corresponding functional element (660) to the light source (100) and / or to the driver (200), and preferably the connector (610) is configured as: ○ Connector through-hole, the connector through-hole having wires that electrically interconnect the corresponding functional element (660) with the light source (100) and / or with the driver (200), and / or ○ Electronic contact, which preferably interacts with a corresponding electrical connector of the flat housing (300) to electrically interconnect the corresponding functional element (660) with the light source (100) and / or with the driver (200); And / or • The functional housing (600) includes a top shell component (680) and a bottom shell component (670) attached together via screw elements (690), wherein the top shell component (680) forms a rearward (R) surface and the bottom shell component (670) forms a frontward (F) surface, and the top shell component (680) and the bottom shell component (670) form a functional element receiving space inside the functional housing (600); and / or • The functional box (600) includes an opening cover opening to the front side (F) of the flat lighting device (1), and preferably the opening cover is formed at the bottom housing member (670), and more preferably the opening cover is removable, thereby providing a through opening for a corresponding functional element (660) of the functional box (600); and / or A sealing gasket (615) is arranged between the functional box (600) and the flat housing (300), the sealing gasket sealing the connection between the functional box (600) and the flat housing (300) to protect it from external influences, and preferably the sealing gasket (615) is the same as the end cap gasket (815), and preferably the sealing gasket (615) is made of solid silicon material; and / or • The functional box (600) is made of a material including polyamide; and / or • The functional box (600) is formed by injection molding; and / or • The flat lighting device (1) includes two functional boxes in the functional box (600), wherein the functional box (600) is attached to the opposite axial side of the flat housing (300).

15. The flat lighting device according to any one of the preceding claims, The flat lighting device (1) includes at least two suspensions (700) for mounting the flat lighting device (1) to a corresponding wall, ceiling, or corresponding rope via a corresponding mounting attachment surface (710). Preferably, each suspension (700) includes a clamping structure (720) for preferably reversibly shaped-fit coupling with the structured profile surface on the outer side (O) of the body (310), and preferably snap-fit ​​coupling. Preferably, the suspension (700) can be flexibly repositioned on the body (310) parallel to the longitudinal extension axis (L).

16. A lighting system (1000) comprising at least two flat lighting devices (1), each of the at least two flat lighting devices being configured according to any one of claims 1 to 14. Each pair of the at least two flat lighting devices (1) is coupled together via an accessory plate (900) to form an enlarged continuous flat lighting device; Preferably, the corresponding accessory plate (900) is arranged on the rear side (R) of the corresponding body (310) of the corresponding two flat lighting devices (1), and more preferably is coupled to the corresponding two flat lighting devices (1) via screws, the screws preferably interacting with the threaded grooves (395) of the corresponding two flat lighting devices (1); The accessory plate (900) further preferably includes a wire mount configured to hold corresponding wires that interconnect the corresponding at least two flat lighting devices (1) and specifically interconnect the corresponding at least two drivers (200) of the at least two flat lighting devices (1).

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