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WO2024227617A1 - Luminaire and method for accessing a luminaire - Google Patents

Luminaire and method for accessing a luminaire Download PDF

Info

Publication number
WO2024227617A1
WO2024227617A1 PCT/EP2024/060539 EP2024060539W WO2024227617A1 WO 2024227617 A1 WO2024227617 A1 WO 2024227617A1 EP 2024060539 W EP2024060539 W EP 2024060539W WO 2024227617 A1 WO2024227617 A1 WO 2024227617A1
Authority
WO
WIPO (PCT)
Prior art keywords
luminaire
accommodation
light module
luminaire housing
housing
Prior art date
Application number
PCT/EP2024/060539
Other languages
French (fr)
Inventor
Peter Johannes Martinus BUKKEMS
Ger Van Hees
Original Assignee
Signify Holding B.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Signify Holding B.V. filed Critical Signify Holding B.V.
Publication of WO2024227617A1 publication Critical patent/WO2024227617A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F21V19/004—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by deformation of parts or snap action mountings, e.g. using clips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/007—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array enclosed in a casing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F21Y2105/14—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array
    • F21Y2105/16—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array square or rectangular, e.g. for light panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention generally relates to luminaires comprising one or more light modules. More specifically, the present invention is related to a luminaire comprising one or more releasably attachable light modules.
  • recessed lighting arrangements or luminaires which may be arranged in offices, homes, stores, etc., may comprise multiple light modules attached to a back plate.
  • the individual light modules can be easily removed and re-installed, or that an installation or service of one or more components from the front side and/or the back side of the lighting device is facilitated.
  • the result of conveniently constructed lighting arrangements or luminaires encompasses an increased energy efficiency and sustainability. More specifically, the possibility to repair and upgrade luminaires significantly increases the luminaire sustainability, and a modular design of the luminaires enables an easy replacement of luminaire parts or components thereof.
  • a luminaire comprising a luminaire housing comprising a front side.
  • the luminaire further comprises a light module releasably attachable to the front side of the luminaire housing, wherein the luminaire housing further comprises an accommodation arranged to accommodate an electrical component.
  • the light module In an attached mode of the light module, whereby at least part of the light module is attached to the luminaire housing, the light module is arranged to at least partly cover the accommodation.
  • the accommodation is accessible from the front side of the luminaire housing for access of the electrical component.
  • the luminaire comprises a luminaire housing comprising a front side.
  • the luminaire further comprises a light module and an accommodation provided in the luminaire housing and arranged to accommodate an electrical component.
  • the method comprises at least one of the following steps:
  • the present invention is based on the idea of a luminaire with one or more light modules which are releasably attachable to the luminaire housing, whereby one or more electrical components, arranged in an accommodation, are easily and conveniently accessible from the front side of the luminaire upon detachment of the light module(s).
  • the present invention is advantageous in that the luminaire provides a positioning of the electrical component which is easy and convenient to access from the luminaire’s front side by the described detachability of the light module. Consequently, the facilitated access of the electrical component s) of the luminaire leads to a simplified maintenance, repair, mounting and de-mounting of the electrical component(s).
  • the luminaire provides costand time efficiency with respect to operations such as maintenance, repair, mounting and demounting of the electrical component(s). Furthermore, as the luminaire is particularly easy and convenient to repair and maintain, it has a longer service life compared to other lighting arrangements in the prior art, thereby even further contributing to the sustainability aspect of the luminaire.
  • the present invention is further advantageous concerning any inspection of the electrical component, and connections or cabling thereof, by the features of the electrical component accommodation and the attachable/detachable light module(s) of the luminaire.
  • any malfunction, damage, or the like, of the electrical component of the luminaire may be conveniently assessed and handled from the front side of the luminaire by the features of the present invention.
  • prior art arrangements often require installation or service of lighting devices or luminaires inside the ceiling, and that this may have to be performed during room refurbishments, construction, or the like.
  • the present invention there is no need to access the luminaire via the ceiling, as instead, the electronic component(s) provided in the accommodation is (are) accessible from the luminaire’s front side.
  • the present invention is further advantageous in its simplicity of operation and handling concerning a minimization of parts and components.
  • the light module of the luminaire may be provided without screws, thereby even further facilitating the handling of the light module.
  • the present invention is further advantageous in that the convenience of the luminaire implies a cost-efficient arrangement as such, e.g. concerning the bill of materials.
  • the luminaire of the present invention comprises relatively few components.
  • the relatively low number of components is advantageous in that the luminaire is relatively inexpensive to fabricate, and that its production may be conducted in a more environmentally friendly manner compared to prior art products.
  • the relatively low number of components of the luminaire implies an easier recycling, especially compared to devices or arrangements comprising a relatively high number of components which impede an easy disassembling and recycling operation.
  • the luminaire comprises a luminaire housing, wherein the luminaire housing may be a frame element, a plate element, a back plate, or the like.
  • the luminaire comprises a front side, i.e. a side from which luminaire light is arranged to be emitted.
  • the luminaire comprises a light module releasably attachable to the front side of the luminaire housing.
  • light module substantially any lighting device, arrangement, or the like, comprising one or more light sources, and possibly optical means such as lenses, or the like.
  • releasably attachable it is here meant that the light module may be (mechanically) attached to, and detached from, the luminaire’s front side.
  • the luminaire housing further comprises an accommodation arranged to accommodate an electrical component.
  • accommodation it is here meant substantially any void, space, housing, cover, cavity, or the like, configured or arranged to receive, accommodate, or retain one or more electrical components.
  • the light module In an attached mode of the light module, whereby at least part of the light module is attached to the luminaire housing, the light module is arranged to at least partly cover the accommodation.
  • the accommodation is accessible from the front side of the luminaire housing for access of the electrical component.
  • the light module may adopt an attached mode or a detached mode, wherein the luminaire provides access to the accommodation and the electrical component in the detached mode.
  • the accommodation may comprise a cavity arranged to accommodate the electrical component, wherein the cavity is provided in the luminaire housing.
  • the accommodation may constitute a cavity, such as a space, void, or the like, arranged to receive and accommodate the electrical component.
  • the present embodiment is advantageous in that the cavity provides a particularly easy access to the electrical component arranged therein.
  • the present embodiment is further advantageous in that the cavity results in a light, easily handled and cost-efficient luminaire.
  • the luminaire may further comprise a cover arranged to at least partly enclose the accommodation.
  • cover it is here meant a cover, housing, shielding, or the like, arranged or configured to partly (partially), or completely, enclose or cover the accommodation. It should be noted that the cover may enclose portion(s) or part(s) of the accommodation wherein an enclosure is desired or needed, whereas other portion(s) or part(s) may be left uncovered, thereby resulting in a customized and optimized luminaire with respect to factors such as weight, safety, cost-efficiency, etc.
  • the accommodation may have an oblong shape
  • the cover comprises oppositely arranged first and second end portions arranged to enclose the accommodation at oppositely arranged first and second end portions of the accommodation, respectively.
  • the cover may enclose or cover the respective end portions of the oblong (elongated) accommodation.
  • the present embodiment is particularly advantageous in that the cover may enclose the end portion(s) of the accommodation, whereas central portion(s) or part(s) may be left uncovered, thereby optimizing the luminaire’s construction with respect to factors such as weight, safety, cost- efficiency, etc.
  • the luminaire may further comprise a support element extending along and adjacent the accommodation.
  • support element it is here meant substantially any element(s) arranged to support the side(s) of the accommodation.
  • the support element may, for example, constitute a sidecovering lip.
  • the present embodiment is advantageous in that the support element, at least partly, encloses the accommodation and also creates friction for an easy installation of the electrical component into the accommodation. Furthermore, the electrical component is more easily held in place or position by the support element.
  • the luminaire housing may further comprise a back side oppositely arranged the front side, wherein the accommodation is accessible from the back side.
  • the luminaire further provides access of the accommodation via the back side.
  • the present embodiment is advantageous in that the luminaire provides an improved versatility regarding service and installation actions, as well as for inspection purposes, providing access not only from the front, but also from the back of the luminaire. For example, during room construction, when the ceiling is usually open, the luminaire provides the possibility to access the luminaire (e.g. the accommodation, the electrical component, cabling, etc.) from the luminaire’s back side.
  • the luminaire may further comprise an enclosure arranged to accommodate electrical cabling of the luminaire.
  • enclosure it is here meant a housing, cover, box, or the like, arranged to accommodate electrical cabling, mains cabling (connections), etc., of the luminaire.
  • the present embodiment is advantageous in that the enclosure may provide the possibility to arrange (flexible) cabling in a loop in the enclosure.
  • the arrangement of the cabling into a loop in the enclosure is further advantageous in that the electrical component may be easily inserted and installed and may separate a relatively rigid wire (cabling), e.g. of the mains connection, to a relatively thin (flexible) cabling of the electrical component.
  • the present embodiment is particularly advantageous in that a mains cable connection can be made in the enclosure during installation, thereby even further contributing to the operational convenience of the luminaire.
  • the enclosure may be provided at a back side of the luminaire housing, and wherein the enclosure comprises a lid being openable and closeable from the back side.
  • the lid may be hinged.
  • the present embodiment is particularly advantageous for installation and inspection of electrical connections or cabling, whereby the lid provides a convenient accessibility to the enclosure.
  • the accommodation and the enclosure may be physically integrated.
  • the accommodation and the enclosure may comprise a common (shared) housing, cover, or the like.
  • the accommodation and the enclosure may be constructed so that (a) electrical component(s) may protrude through the enclosure.
  • the present embodiment is advantageous in that the luminaire may achieve an even higher level of the saving of material, and consequently, also a saving of weight and cost.
  • the electrical component may be a driver arranged to supply electrical power to the light module. It will be appreciated that it is highly desirable to conveniently and easily access, repair or install a driver for the luminaire, and the luminaire of the present invention provides these advantages by its construction properties.
  • the luminaire arrangement comprises a luminaire according to any one of the preceding embodiments, and a driver arranged in the accommodation, wherein the driver is arranged to supply electrical power to the light module.
  • the luminaire housing further comprises a back side oppositely arranged the front side, wherein the accommodation comprises a cavity provided in the back side of the luminaire housing and is arranged to accommodate the driver, whereby the driver, arranged in the cavity, provides a closure of the cavity.
  • the cavity provided in the back side of the luminaire housing results in a partially open back side of the luminaire housing, whereby the presence of the driver, arranged in the cavity, at least partly closes the cavity.
  • the driver provides or ensures a closure of the cavity when arranged therein, and consequently, a closure of the back side of the luminaire housing.
  • the back side of the luminaire housing may comprise, or be made of, metal, which further augments the fire resistance of the luminaire arrangement.
  • the luminaire arrangement may further comprise an enclosure, and electrical cabling arranged in the enclosure, wherein the electrical cabling is connected to the driver.
  • the luminaire arrangement further comprises a torsion spring comprising a coil and a pair of legs extending from the coil, wherein each leg of the pair of legs comprises a respective end portion distal to the coil.
  • the luminaire housing comprises an opening, and the light module is releasably attachable to the luminaire housing by the torsion spring via the opening.
  • the torsion spring does not extend through the opening, whereby at least part of the light module is detached from the luminaire housing.
  • the torsion spring partially extends through the opening.
  • the pair of legs of the torsion spring extends through the opening of the luminaire housing, and each leg of the pair of legs abuts a back side of the luminaire housing, whereby the torsion spring biases at least part of the light module towards the luminaire housing.
  • the end portion of each leg of the pair of legs abuts the back side of the luminaire housing at a rim of the opening, and the pair of legs of the torsion spring is positioned between the luminaire housing and the light module, whereby the light module is separated from the luminaire housing.
  • the luminaire arrangement may be further described according to the following, whereby the torsion spring comprises a coil and a pair of legs extending from the coil.
  • the torsion spring may be biased by application of force(s) on the pair of legs.
  • Each leg of the pair of legs comprises a respective end portion distal to the coil.
  • the luminaire housing comprises an opening.
  • opening it is here meant a (through) hole, a slit, or the like.
  • the light module is releasably attachable to the luminaire housing by the torsion spring via the opening, i.e. that the light module may be (mechanically) attached to, and detached from, the luminaire housing.
  • the torsion spring does not extend through the opening, whereby at least part of the light module is detached from the luminaire housing.
  • the torsion spring partially extends through the opening.
  • the light module and the luminaire housing are attached via the torsion spring extending through the opening.
  • the pair of legs of the torsion spring extends through the opening of the luminaire housing, and each leg of the pair of legs abuts a back side of the luminaire housing, whereby the torsion spring biases at least part of the light module towards the luminaire housing.
  • the pair of legs of the torsion spring forces or pushes (at least part of) the light module towards the luminaire housing, or, in other words, pulls the light module towards the luminaire housing.
  • the end portion of each leg of the pair of legs abuts the back side of the luminaire housing at a rim of the opening, and the pair of legs of the torsion spring is positioned between the luminaire housing and the light module, whereby at least part of the light module is separated from the luminaire housing.
  • the second state of the attached mode may represent a “dangling state”, wherein the separation of (at least part of) the light module and the luminaire housing may be dependent on the length of the pair of legs of the torsion spring.
  • the present embodiment is advantageous in that its convenience and noncomplexity leads to a simplified maintenance, repair, mounting and/or de-mounting of the luminaire.
  • the present embodiment is consequently advantageous in that the luminaire arrangement provides cost- and time efficiency with respect to operations such as maintenance, repair, mounting and de-mounting of the luminaire.
  • the luminaire arrangement is particularly easy and convenient to repair and maintain, it has a longer service life compared to other lighting arrangements in the prior art, thereby even further contributing to the sustainability aspect of the luminaire arrangement.
  • the present embodiment is further advantageous in its simplicity of operation and handling concerning a minimization of parts and components.
  • the present embodiment is further advantageous in its versatility regarding the different modes that the luminaire arrangement can adopt, thereby improving the mode/ setting of the luminaire arrangement for the desired purpose, such as (normal) luminaire operation of light distribution, repair of the luminaire arrangement, etc.
  • substantially any combination of the first state of the attached mode, the second state of the attached mode, and the detached mode may be adopted via the torsion spring(s).
  • a detached mode of the present invention which may represent a “dangling state” of the light module
  • repair, re-installation and disassembly purposes become particularly convenient and easy.
  • the light module may even be moved sideways when in this state to create even more space for an operator for these purposes.
  • the present embodiment is further advantageous regarding safety aspects.
  • the luminaire arrangement prevents the light module(s) from falling.
  • the light module(s) cannot be removed from the luminaire arrangement without compression of the tension spring.
  • An overloading of the tension spring results in a bent luminaire arrangement or a broken light module, meaning that the tension spring may be stronger compared to other luminaire components.
  • the present embodiment is further advantageous in that the convenience of the luminaire arrangement implies a cost-efficient arrangement as such, e.g. concerning the bill of materials.
  • the luminaire arrangement of the present embodiment comprises relatively few components.
  • the relatively low number of components is advantageous in that the luminaire arrangement is relatively inexpensive to fabricate, and that its production may be conducted in a more environmentally friendly manner compared to prior art products.
  • the relatively low number of components of the luminaire arrangement implies an easier recycling, especially compared to devices or arrangements comprising a relatively high number of components which impede an easy disassembling and recycling operation.
  • the method may comprise at least one of the following steps of inserting an electrical component into the accommodation and removing an electrical component from the accommodation.
  • Fig. 1 schematically shows a luminaire according to an exemplifying embodiment of the present invention
  • Fig. 2 schematically shows a light module of a luminaire according to an exemplifying embodiment of the present invention
  • Figs. 3a, 3b, 4, 5a, 5b schematically show luminaires according to exemplifying embodiments of the present invention
  • Fig. 6 schematically shows a portion of a luminaire according to exemplifying embodiments of the present invention
  • Figs. 7a, 7b and 8 schematically show a luminaire of a luminaire arrangement according to exemplifying embodiments of the present invention
  • Figs. 9a and 9b schematically show methods for accessing a luminaire according to exemplifying embodiments of the present invention.
  • Fig. 1 schematically shows a luminaire 100 according to an exemplifying embodiment of the present invention.
  • the luminaire 100 is shown from its front side 107, i.e. the side from which the light from the luminaire 100 is arranged to be emitted.
  • the luminaire 100 comprises a luminaire housing 110.
  • the luminaire housing 110 may be a frame element, a plate element, a back plate, or the like.
  • the luminaire 100 further comprises at least one light module 120 attachable to the luminaire housing 110.
  • the light module 120 may be a lighting device, arrangement, or the like, comprising one or more light sources, and possibly optical means such as lenses, or the like.
  • the light module 120 may comprise a plurality of light emitting diodes, LEDs.
  • the luminaire 100 as exemplified in Fig. 1 may be arranged in a recess of a wall or a ceiling.
  • Fig. 2 schematically shows a light module 120 of a luminaire 100 according to an exemplifying embodiment of the present invention.
  • the light module 120 is exemplified as comprising 2 x 16 reflectors, each partially enclosing 4 LEDs 130 (i.e. 128 LEDs 130 in total) arranged to emit light 140. It will be appreciated that the light module 120 may comprise substantially any number of rows and columns of reflectors, and any number of LEDs 130.
  • Fig. 3a schematically shows a luminaire 100 according to an exemplifying embodiment of the present invention.
  • the luminaire 100 in Fig. 3a as shown in an exploded view, corresponds to the luminaire 100 as exemplified in Fig. 1, and the luminaire 100 in Fig. 3a is also shown from its front side 107.
  • the luminaire 100 which comprises a luminaire housing 110, further comprises a light module 120 releasably attachable to the front side 107 of the luminaire housing 100.
  • the luminaire housing 110 comprises an accommodation 310 arranged to accommodate an electrical component 311.
  • the accommodation 310 may comprise a void, space, housing, cover, cavity, or the like, of the luminaire housing 110.
  • the accommodation 310 may comprise or constitute a cavity arranged to accommodate the electrical component 311, wherein the cavity is provided in the luminaire housing 110.
  • the accommodation 310 is configured or arranged to receive, accommodate, or retain the electrical component(s) 311.
  • the electrical component 311 as exemplified in Fig. 3a is a driver arranged to supply electrical power to the light module 120.
  • the light module 120 In an attached mode of the light module 120, whereby at least part of the light module 120 is attached to the luminaire housing 110, the light module 120 is arranged to at least partly cover the accommodation 310.
  • at least one light module 120 of a plurality of light modules may be arranged to at least partly cover the accommodation 310.
  • the accommodation 310 is accessible from the front side 107 of the luminaire housing 110 for access of the electrical component 311.
  • the light module 120 may adopt an attached mode or a detached mode, wherein the luminaire 100 provides access to the accommodation 310 and the electrical component 311 in the detached mode.
  • the exploded view of the luminaire 100 of Fig. 3a further comprises an enclosure 118 arranged to accommodate electrical cabling of the luminaire 100, a screw location 123, a low-voltage (LV) cover 318 arranged to provide a (final) fixation of the electrical component 311, a cable tree location, and assembly bridges 322, wherein the assembly bridge 322 at the accommodation 310 provides light module 120 levelling in front of the electrical component 311.
  • LV low-voltage
  • Fig. 3b schematically shows a portion of luminaire 100 according to an exemplifying embodiment of the present invention.
  • the luminaire 100 comprises a sensor location 324, and a front rim 325.
  • the luminaire 100 further comprises a plurality of light modules 120.
  • Fig. 4 schematically shows a luminaire 100 according to an exemplifying embodiment of the present invention.
  • Five light modules 120 of the luminaire 100 are in an attached mode, whereby at least part of the respective light module 120 is attached to the luminaire housing 110.
  • One light module 120 of the luminaire 100 is in a detached mode, whereby at least part of the light module 120 is detached from the luminaire housing 110.
  • the accommodation 310 is accessible from the front side 107 of the luminaire housing 110.
  • the luminaire 100 as exemplified in Fig. 4 is arranged to accommodate an electrical component (e.g. a driver) in the accommodation 310, wherein the driver is arranged to supply electrical power to the light modules 120.
  • an electrical component e.g. a driver
  • Fig. 5a schematically shows a luminaire 100 according to an exemplifying embodiment of the present invention.
  • the luminaire 100 comprises an electrical component 311 (exemplified as a driver) which is shown in a tilted position. In this tilted position, any electrical cabling to the electrical component 311 is disconnected, and the electrical component 311 is ready to be removed from the front side of the luminaire housing.
  • Fig. 5b schematically shows a luminaire 100 according to an exemplifying embodiment of the present invention.
  • the luminaire 100 which is shown from its back side, comprises a cover 316 arranged to at least partly enclose the accommodation for accommodating the electrical component of the luminaire 100.
  • the accommodation has an oblong shape
  • the cover 316 comprises oppositely arranged first and second end portions 320, 321 arranged to enclose the accommodation at oppositely arranged first and second end portions 331, 339 of the accommodation, respectively.
  • the luminaire 100 further comprises a support element 340 for holding the electrical component 311 in place in the accommodation 310.
  • the support element 340 extends along and adjacent the accommodation 310.
  • the support element 340 is exemplified in the form of a plurality of (gripping or clamping) lips, which may be arranged on opposite sides of the accommodation.
  • the lips grip or clamp the sides of the electrical component 311, thereby keeping the electrical component 311 in place in the accommodation 310.
  • Fig. 6 schematically shows a portion of a luminaire 100 according to an exemplifying embodiment of the present invention.
  • the luminaire 100 which is shown from its back side, comprises an enclosure 118 arranged to accommodate electrical cabling of the luminaire 100, wherein the enclosure 118 may be a housing, cover, box, or the like, arranged to accommodate electrical cabling 119, mains cabling (connections), etc., of the luminaire 100.
  • the electrical cabling 119 is exemplified as being arranged in the enclosure 118 in (a) loop(s).
  • the enclosure 118 which is provided at the back side of the luminaire housing of the luminaire 100, comprises a lid 121 being openable and closeable from the back side 220.
  • Fig. 6 further shows that the accommodation of the luminaire 100 and the enclosure 118 are physically integrated, i.e. that the accommodation and the enclosure 118 comprise a common (shared) housing, cover, or the like.
  • the support element has a first lip 341 and a second lip 340.
  • the first lip 341 is located approximately at a center of the accommodation.
  • the first lip 341 is oriented at an acute angle relative to the back side of the luminaire housing, such as an angle of 45 degrees. Thereby, the first lip 341 provides a space for allowing a user to grasp the electrical component when it is arranged in the accommodation.
  • the second lip 342 is located adjacent to the first lip 341 on the same side of the accommodation.
  • the second lip 342 is oriented at a substantially right angle relative to the back side of the luminaire housing. Thereby, the second lip 342 provides a surface for clamping a side of the electrical component when it is arranged in the accommodation.
  • the luminaire housing 110 comprises an opening 200, in form of a (through) hole, a slit, or the like.
  • the light module 120 is releasably attachable to the luminaire housing 110 by a torsion spring 150 via the opening 200, i.e. that the light module 120 may be (mechanically) attached to, and detached from, the luminaire housing 110. In an attached mode, as shown by both Figs.
  • the torsion spring 150 (partially) extends through the opening 200, whereby the light module 120 and the luminaire housing 110 are attached via the torsion spring 150 extending through the opening 200.
  • the torsion spring 150 does not extend through the opening 200, whereby at least part of the light module 120 is detached from the luminaire housing 110.
  • Fig. 7a schematically shows a cross-section of a luminaire 100 of a luminaire arrangement in a first state 210 of an attached mode according to an exemplifying embodiment of the present invention.
  • the pair of legs of the torsion spring 150 extends through the opening 200 of the luminaire housing 110, and each leg of the pair of legs abuts a back side 220 of the luminaire housing 110, whereby the torsion spring 150 biases at least part of the light module 120 towards the luminaire housing 110.
  • the pair of legs of the torsion spring 150 forces or pushes (at least part of) the light module 120 towards the luminaire housing 110. This results in a (relatively short) distance, d, between (at least part of) the light module 120 and the luminaire housing 110.
  • Fig. 7b schematically shows a cross-section of a luminaire 100 of a luminaire arrangement in a second state 230 of an attached mode according to an exemplifying embodiment of the present invention.
  • the end portion of each leg of the pair of legs abuts the back side 220 of the luminaire housing 110 at a rim 240 of the opening 200.
  • the pair of legs of the torsion spring 150 is positioned between the luminaire housing 110 and the light module 120, whereby at least part of the light module 120 is separated from the luminaire housing 110. This results in a (relatively large) distance, D, between (at least part of) the light module 120 and the luminaire housing 110.
  • the second state 230 of the attached mode represents a “dangling state” by the separation of (at least part of) the light module 120 and the luminaire housing 110.
  • Fig. 8 schematically shows a luminaire 100 of a luminaire arrangement according to an exemplifying embodiment of the present invention, wherein the view of the luminaire 100 is from its back side.
  • the luminaire 100 comprises a plurality of openings 200 in the luminaire housing 110
  • the luminaire 100 comprises a plurality of torsion springs 150.
  • the light module(s) adopt(s) an attached mode, as the pairs of legs of the torsion springs 150 extend through the respective opening 200 of the luminaire housing 110.
  • each leg of the pairs of legs abuts a back side of the luminaire housing 110, whereby the torsion spring 150 biases at least part of the light module 120 towards the luminaire housing 110.
  • the end portion(s) of the pair of legs abut(s) the back side of the luminaire housing 110 at a rim of the housing, separating the light module and the luminaire housing 110.
  • Figs. 9a and 9b schematically show flow charts of methods 1000 according to exemplifying embodiments of the second aspect of the present invention.
  • the methods 1000 relate to accessing a luminaire according to the first aspect of the present invention, and it is referred to the previous figure(s) and associated text for details and understanding of the features and functions of the luminaire.
  • the method 1000 as indicated in Fig. 9a comprises at least one of the following steps:
  • the method 1000 in Fig. 9a may comprise any one, or any combination, of the step(s) (i) and (ii), as indicated by the dashed lines.
  • the method 1000 may comprise (i) releasably attaching 1020 the light module to the luminaire housing followed by
  • detaching 1020 the light module from the luminaire housing may be performed in the reverse order, i.e. (ii) detaching 1020 the light module from the luminaire housing and accessing 1030 the accommodation from the front side of the luminaire housing for access of the electrical component followed by
  • the method 1000 as indicated in Fig. 9b shows an exemplifying embodiment of the method 1000 of Fig. 9a combined with at least one of the following steps of:
  • the method 1000 according to the example of Fig. 9b comprises the (e.g. sequential) steps of: (iii) inserting 1040 an electrical component into the accommodation,
  • one or more of the luminaire 100, the luminaire housing 110, the light module 120, etc. may have different shapes, dimensions and/or sizes than those depicted/described.

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Abstract

A luminaire (100) and a method (1000) for accessing a luminaire are provided. The luminaire comprises a luminaire housing (110) comprising a front side (107), and a light module (120) releasably attachable to the front side of the luminaire housing. The luminaire housing further comprises an accommodation (310) arranged to accommodate an electrical component (311). In an attached mode of the light module, whereby at least part of the light module is attached to the luminaire housing, the light module is arranged to at least partly cover the accommodation. In a detached mode of the light module, whereby at least part of the light module is detached from the luminaire housing, the accommodation is accessible from the front side of the luminaire housing for access of the electrical component.

Description

Luminaire and method for accessing a luminaire
FIELD OF THE INVENTION
The present invention generally relates to luminaires comprising one or more light modules. More specifically, the present invention is related to a luminaire comprising one or more releasably attachable light modules.
BACKGROUND OF THE INVENTION
There is currently a large interest and need for lighting arrangements or luminaires which are convenient in their constructions, as it is desirable to a provide a robust assembly, convenient removal and/or re-installation of parts or components of the lighting arrangements or luminaires. More specifically, recessed lighting arrangements or luminaires, which may be arranged in offices, homes, stores, etc., may comprise multiple light modules attached to a back plate. For lighting devices of this kind, it is desirable that the individual light modules can be easily removed and re-installed, or that an installation or service of one or more components from the front side and/or the back side of the lighting device is facilitated.
It should be noted that the result of conveniently constructed lighting arrangements or luminaires encompasses an increased energy efficiency and sustainability. More specifically, the possibility to repair and upgrade luminaires significantly increases the luminaire sustainability, and a modular design of the luminaires enables an easy replacement of luminaire parts or components thereof.
Prior art lighting arrangements, aiming to provide at least some of the above- mentioned advantages, are often complex and inconvenient in their constructions. Due to these deficiencies, they are consequently not able to achieve the sought energy efficiency and sustainability of the lighting arrangements.
Hence, it is an object of the present invention to provide a lighting arrangement or luminaire which is convenient and non-complex in its structure, which consequently also provides energy efficiency and sustainability. SUMMARY OF THE INVENTION
It is of interest to provide a lighting arrangement or luminaire which is convenient and non-complex in its construction or structure, resulting in an increased energy efficiency and sustainability of the lighting arrangement or luminaire due to a facilitated assembly, as well as facilitated removal, repair, and re-installation operations.
This and other objects are achieved by providing a luminaire and a method having the features in the independent claims. Preferred embodiments are defined in the dependent claims.
Hence, according to the first aspect of the present invention, there is provided a luminaire. The luminaire comprises a luminaire housing comprising a front side. The luminaire further comprises a light module releasably attachable to the front side of the luminaire housing, wherein the luminaire housing further comprises an accommodation arranged to accommodate an electrical component. In an attached mode of the light module, whereby at least part of the light module is attached to the luminaire housing, the light module is arranged to at least partly cover the accommodation. In a detached mode of the light module, whereby at least part of the light module is detached from the luminaire housing, the accommodation is accessible from the front side of the luminaire housing for access of the electrical component.
According to the second aspect of the present invention, there is provided a method for accessing a luminaire. The luminaire comprises a luminaire housing comprising a front side. The luminaire further comprises a light module and an accommodation provided in the luminaire housing and arranged to accommodate an electrical component. The method comprises at least one of the following steps:
(i) releasably attaching at least part of the light module to the luminaire housing, and
(ii) detaching at least part of the light module from the luminaire housing and accessing the accommodation from the front side of the luminaire housing for access of the electrical component.
Thus, the present invention is based on the idea of a luminaire with one or more light modules which are releasably attachable to the luminaire housing, whereby one or more electrical components, arranged in an accommodation, are easily and conveniently accessible from the front side of the luminaire upon detachment of the light module(s). The present invention is advantageous in that the luminaire provides a positioning of the electrical component which is easy and convenient to access from the luminaire’s front side by the described detachability of the light module. Consequently, the facilitated access of the electrical component s) of the luminaire leads to a simplified maintenance, repair, mounting and de-mounting of the electrical component(s). For example, the luminaire provides costand time efficiency with respect to operations such as maintenance, repair, mounting and demounting of the electrical component(s). Furthermore, as the luminaire is particularly easy and convenient to repair and maintain, it has a longer service life compared to other lighting arrangements in the prior art, thereby even further contributing to the sustainability aspect of the luminaire.
The present invention is further advantageous concerning any inspection of the electrical component, and connections or cabling thereof, by the features of the electrical component accommodation and the attachable/detachable light module(s) of the luminaire. Hence, any malfunction, damage, or the like, of the electrical component of the luminaire, may be conveniently assessed and handled from the front side of the luminaire by the features of the present invention. It should be noted that prior art arrangements often require installation or service of lighting devices or luminaires inside the ceiling, and that this may have to be performed during room refurbishments, construction, or the like. In contrast, by the present invention, there is no need to access the luminaire via the ceiling, as instead, the electronic component(s) provided in the accommodation is (are) accessible from the luminaire’s front side.
The present invention is further advantageous in its simplicity of operation and handling concerning a minimization of parts and components. For example, the light module of the luminaire may be provided without screws, thereby even further facilitating the handling of the light module.
The present invention is further advantageous in that the convenience of the luminaire implies a cost-efficient arrangement as such, e.g. concerning the bill of materials.
It will be appreciated that the luminaire of the present invention comprises relatively few components. The relatively low number of components is advantageous in that the luminaire is relatively inexpensive to fabricate, and that its production may be conducted in a more environmentally friendly manner compared to prior art products. Moreover, the relatively low number of components of the luminaire implies an easier recycling, especially compared to devices or arrangements comprising a relatively high number of components which impede an easy disassembling and recycling operation.
The luminaire comprises a luminaire housing, wherein the luminaire housing may be a frame element, a plate element, a back plate, or the like. The luminaire comprises a front side, i.e. a side from which luminaire light is arranged to be emitted. The luminaire comprises a light module releasably attachable to the front side of the luminaire housing.
By “light module”, it is here meant substantially any lighting device, arrangement, or the like, comprising one or more light sources, and possibly optical means such as lenses, or the like. By “releasably attachable”, it is here meant that the light module may be (mechanically) attached to, and detached from, the luminaire’s front side. The luminaire housing further comprises an accommodation arranged to accommodate an electrical component. By “accommodation”, it is here meant substantially any void, space, housing, cover, cavity, or the like, configured or arranged to receive, accommodate, or retain one or more electrical components. In an attached mode of the light module, whereby at least part of the light module is attached to the luminaire housing, the light module is arranged to at least partly cover the accommodation.
In a detached mode of the light module, whereby at least part of the light module is detached from the luminaire housing, the accommodation is accessible from the front side of the luminaire housing for access of the electrical component. Hence, the light module may adopt an attached mode or a detached mode, wherein the luminaire provides access to the accommodation and the electrical component in the detached mode.
According to an embodiment of the present invention, the accommodation may comprise a cavity arranged to accommodate the electrical component, wherein the cavity is provided in the luminaire housing. For example, the accommodation may constitute a cavity, such as a space, void, or the like, arranged to receive and accommodate the electrical component. The present embodiment is advantageous in that the cavity provides a particularly easy access to the electrical component arranged therein. The present embodiment is further advantageous in that the cavity results in a light, easily handled and cost-efficient luminaire.
According to an embodiment of the present invention, the luminaire may further comprise a cover arranged to at least partly enclose the accommodation. By “cover”, it is here meant a cover, housing, shielding, or the like, arranged or configured to partly (partially), or completely, enclose or cover the accommodation. It should be noted that the cover may enclose portion(s) or part(s) of the accommodation wherein an enclosure is desired or needed, whereas other portion(s) or part(s) may be left uncovered, thereby resulting in a customized and optimized luminaire with respect to factors such as weight, safety, cost-efficiency, etc. According to an embodiment of the present invention, the accommodation may have an oblong shape, and wherein the cover comprises oppositely arranged first and second end portions arranged to enclose the accommodation at oppositely arranged first and second end portions of the accommodation, respectively. Hence, the cover may enclose or cover the respective end portions of the oblong (elongated) accommodation. The present embodiment is particularly advantageous in that the cover may enclose the end portion(s) of the accommodation, whereas central portion(s) or part(s) may be left uncovered, thereby optimizing the luminaire’s construction with respect to factors such as weight, safety, cost- efficiency, etc.
According to an embodiment of the present invention, the luminaire may further comprise a support element extending along and adjacent the accommodation. By “support element”, it is here meant substantially any element(s) arranged to support the side(s) of the accommodation. The support element may, for example, constitute a sidecovering lip. The present embodiment is advantageous in that the support element, at least partly, encloses the accommodation and also creates friction for an easy installation of the electrical component into the accommodation. Furthermore, the electrical component is more easily held in place or position by the support element.
According to an embodiment of the present invention, the luminaire housing may further comprise a back side oppositely arranged the front side, wherein the accommodation is accessible from the back side. Hence, in addition to the accommodation being accessible from the front side of the luminaire housing, the luminaire further provides access of the accommodation via the back side. The present embodiment is advantageous in that the luminaire provides an improved versatility regarding service and installation actions, as well as for inspection purposes, providing access not only from the front, but also from the back of the luminaire. For example, during room construction, when the ceiling is usually open, the luminaire provides the possibility to access the luminaire (e.g. the accommodation, the electrical component, cabling, etc.) from the luminaire’s back side.
According to an embodiment of the present invention, the luminaire may further comprise an enclosure arranged to accommodate electrical cabling of the luminaire. By “enclosure”, it is here meant a housing, cover, box, or the like, arranged to accommodate electrical cabling, mains cabling (connections), etc., of the luminaire. The present embodiment is advantageous in that the enclosure may provide the possibility to arrange (flexible) cabling in a loop in the enclosure. The arrangement of the cabling into a loop in the enclosure is further advantageous in that the electrical component may be easily inserted and installed and may separate a relatively rigid wire (cabling), e.g. of the mains connection, to a relatively thin (flexible) cabling of the electrical component. The present embodiment is particularly advantageous in that a mains cable connection can be made in the enclosure during installation, thereby even further contributing to the operational convenience of the luminaire.
According to an embodiment of the present invention, the enclosure may be provided at a back side of the luminaire housing, and wherein the enclosure comprises a lid being openable and closeable from the back side. For example, the lid may be hinged. The present embodiment is particularly advantageous for installation and inspection of electrical connections or cabling, whereby the lid provides a convenient accessibility to the enclosure.
According to an embodiment of the present invention, the accommodation and the enclosure may be physically integrated. Hence, the accommodation and the enclosure may comprise a common (shared) housing, cover, or the like. For example, the accommodation and the enclosure may be constructed so that (a) electrical component(s) may protrude through the enclosure. The present embodiment is advantageous in that the luminaire may achieve an even higher level of the saving of material, and consequently, also a saving of weight and cost.
According to an embodiment of the present invention, the electrical component may be a driver arranged to supply electrical power to the light module. It will be appreciated that it is highly desirable to conveniently and easily access, repair or install a driver for the luminaire, and the luminaire of the present invention provides these advantages by its construction properties.
According to an embodiment of the present invention, there is provided a luminaire arrangement. The luminaire arrangement comprises a luminaire according to any one of the preceding embodiments, and a driver arranged in the accommodation, wherein the driver is arranged to supply electrical power to the light module.
According to an example of the luminaire arrangement, the luminaire housing further comprises a back side oppositely arranged the front side, wherein the accommodation comprises a cavity provided in the back side of the luminaire housing and is arranged to accommodate the driver, whereby the driver, arranged in the cavity, provides a closure of the cavity. In other words, the cavity provided in the back side of the luminaire housing results in a partially open back side of the luminaire housing, whereby the presence of the driver, arranged in the cavity, at least partly closes the cavity. Hence, the driver provides or ensures a closure of the cavity when arranged therein, and consequently, a closure of the back side of the luminaire housing. The present example is advantageous in that the combination of the luminaire housing and the driver augment the fire resistance of the luminaire arrangement. Furthermore, according to another example, the back side of the luminaire housing may comprise, or be made of, metal, which further augments the fire resistance of the luminaire arrangement.
According to an embodiment of the present invention, the luminaire arrangement may further comprise an enclosure, and electrical cabling arranged in the enclosure, wherein the electrical cabling is connected to the driver.
According to an embodiment of the present invention, the luminaire arrangement further comprises a torsion spring comprising a coil and a pair of legs extending from the coil, wherein each leg of the pair of legs comprises a respective end portion distal to the coil. The luminaire housing comprises an opening, and the light module is releasably attachable to the luminaire housing by the torsion spring via the opening. In the detached mode, the torsion spring does not extend through the opening, whereby at least part of the light module is detached from the luminaire housing. In the attached mode, the torsion spring partially extends through the opening. In a first state of the attached mode, the pair of legs of the torsion spring extends through the opening of the luminaire housing, and each leg of the pair of legs abuts a back side of the luminaire housing, whereby the torsion spring biases at least part of the light module towards the luminaire housing. In a second state of the attached mode, the end portion of each leg of the pair of legs abuts the back side of the luminaire housing at a rim of the opening, and the pair of legs of the torsion spring is positioned between the luminaire housing and the light module, whereby the light module is separated from the luminaire housing. Hence, the luminaire arrangement may be further described according to the following, whereby the torsion spring comprises a coil and a pair of legs extending from the coil. Hence, the torsion spring may be biased by application of force(s) on the pair of legs. Each leg of the pair of legs comprises a respective end portion distal to the coil. The luminaire housing comprises an opening. By “opening”, it is here meant a (through) hole, a slit, or the like. The light module is releasably attachable to the luminaire housing by the torsion spring via the opening, i.e. that the light module may be (mechanically) attached to, and detached from, the luminaire housing. In a detached mode, the torsion spring does not extend through the opening, whereby at least part of the light module is detached from the luminaire housing. In an attached mode, the torsion spring partially extends through the opening. Hence, the light module and the luminaire housing are attached via the torsion spring extending through the opening. In a first state of the attached mode, the pair of legs of the torsion spring extends through the opening of the luminaire housing, and each leg of the pair of legs abuts a back side of the luminaire housing, whereby the torsion spring biases at least part of the light module towards the luminaire housing. Hence, the pair of legs of the torsion spring forces or pushes (at least part of) the light module towards the luminaire housing, or, in other words, pulls the light module towards the luminaire housing. In a second state of the attached mode, the end portion of each leg of the pair of legs abuts the back side of the luminaire housing at a rim of the opening, and the pair of legs of the torsion spring is positioned between the luminaire housing and the light module, whereby at least part of the light module is separated from the luminaire housing. Hence, the second state of the attached mode may represent a “dangling state”, wherein the separation of (at least part of) the light module and the luminaire housing may be dependent on the length of the pair of legs of the torsion spring. The present embodiment is advantageous in that its convenience and noncomplexity leads to a simplified maintenance, repair, mounting and/or de-mounting of the luminaire. The present embodiment is consequently advantageous in that the luminaire arrangement provides cost- and time efficiency with respect to operations such as maintenance, repair, mounting and de-mounting of the luminaire. Furthermore, as the luminaire arrangement is particularly easy and convenient to repair and maintain, it has a longer service life compared to other lighting arrangements in the prior art, thereby even further contributing to the sustainability aspect of the luminaire arrangement. The present embodiment is further advantageous in its simplicity of operation and handling concerning a minimization of parts and components. The present embodiment is further advantageous in its versatility regarding the different modes that the luminaire arrangement can adopt, thereby improving the mode/ setting of the luminaire arrangement for the desired purpose, such as (normal) luminaire operation of light distribution, repair of the luminaire arrangement, etc. It will be appreciated that substantially any combination of the first state of the attached mode, the second state of the attached mode, and the detached mode may be adopted via the torsion spring(s). For example, in case of a detached mode of the present invention, which may represent a “dangling state” of the light module, it should be noted that repair, re-installation and disassembly purposes become particularly convenient and easy. The light module may even be moved sideways when in this state to create even more space for an operator for these purposes. The present embodiment is further advantageous regarding safety aspects. More specifically, the luminaire arrangement prevents the light module(s) from falling. In principle, the light module(s) cannot be removed from the luminaire arrangement without compression of the tension spring. An overloading of the tension spring results in a bent luminaire arrangement or a broken light module, meaning that the tension spring may be stronger compared to other luminaire components. The present embodiment is further advantageous in that the convenience of the luminaire arrangement implies a cost-efficient arrangement as such, e.g. concerning the bill of materials. It will be appreciated that the luminaire arrangement of the present embodiment comprises relatively few components. The relatively low number of components is advantageous in that the luminaire arrangement is relatively inexpensive to fabricate, and that its production may be conducted in a more environmentally friendly manner compared to prior art products. Moreover, the relatively low number of components of the luminaire arrangement implies an easier recycling, especially compared to devices or arrangements comprising a relatively high number of components which impede an easy disassembling and recycling operation.
According to an embodiment of the second aspect of the present invention, the method may comprise at least one of the following steps of inserting an electrical component into the accommodation and removing an electrical component from the accommodation.
Further objectives of, features of, and advantages with, the present invention will become apparent when studying the following detailed disclosure, the drawings, and the appended claims. Those skilled in the art will realize that different features of the present invention can be combined to create embodiments other than those described in the following.
BRIEF DESCRIPTION OF THE DRAWINGS
This and other aspects of the present invention will now be described in more detail, with reference to the appended drawings showing embodiment(s) of the invention.
Fig. 1 schematically shows a luminaire according to an exemplifying embodiment of the present invention,
Fig. 2 schematically shows a light module of a luminaire according to an exemplifying embodiment of the present invention,
Figs. 3a, 3b, 4, 5a, 5b schematically show luminaires according to exemplifying embodiments of the present invention,
Fig. 6 schematically shows a portion of a luminaire according to exemplifying embodiments of the present invention,
Figs. 7a, 7b and 8 schematically show a luminaire of a luminaire arrangement according to exemplifying embodiments of the present invention, and Figs. 9a and 9b schematically show methods for accessing a luminaire according to exemplifying embodiments of the present invention.
DETAILED DESCRIPTION
Fig. 1 schematically shows a luminaire 100 according to an exemplifying embodiment of the present invention. The luminaire 100 is shown from its front side 107, i.e. the side from which the light from the luminaire 100 is arranged to be emitted. The luminaire 100 comprises a luminaire housing 110. The luminaire housing 110 may be a frame element, a plate element, a back plate, or the like. The luminaire 100 further comprises at least one light module 120 attachable to the luminaire housing 110. The light module 120 may be a lighting device, arrangement, or the like, comprising one or more light sources, and possibly optical means such as lenses, or the like. For example, the light module 120 may comprise a plurality of light emitting diodes, LEDs. The luminaire 100 as exemplified in Fig. 1 may be arranged in a recess of a wall or a ceiling.
Fig. 2 schematically shows a light module 120 of a luminaire 100 according to an exemplifying embodiment of the present invention. Here, the light module 120 is exemplified as comprising 2 x 16 reflectors, each partially enclosing 4 LEDs 130 (i.e. 128 LEDs 130 in total) arranged to emit light 140. It will be appreciated that the light module 120 may comprise substantially any number of rows and columns of reflectors, and any number of LEDs 130.
Fig. 3a schematically shows a luminaire 100 according to an exemplifying embodiment of the present invention. The luminaire 100 in Fig. 3a, as shown in an exploded view, corresponds to the luminaire 100 as exemplified in Fig. 1, and the luminaire 100 in Fig. 3a is also shown from its front side 107. The luminaire 100, which comprises a luminaire housing 110, further comprises a light module 120 releasably attachable to the front side 107 of the luminaire housing 100. The luminaire housing 110 comprises an accommodation 310 arranged to accommodate an electrical component 311. The accommodation 310 may comprise a void, space, housing, cover, cavity, or the like, of the luminaire housing 110. According to an embodiment, the accommodation 310 may comprise or constitute a cavity arranged to accommodate the electrical component 311, wherein the cavity is provided in the luminaire housing 110. The accommodation 310 is configured or arranged to receive, accommodate, or retain the electrical component(s) 311. The electrical component 311 as exemplified in Fig. 3a is a driver arranged to supply electrical power to the light module 120. In an attached mode of the light module 120, whereby at least part of the light module 120 is attached to the luminaire housing 110, the light module 120 is arranged to at least partly cover the accommodation 310. As exemplified in Fig. 3a, at least one light module 120 of a plurality of light modules may be arranged to at least partly cover the accommodation 310. In a detached mode of the light module 120, whereby at least part of the light module 120 is detached from the luminaire housing 110, the accommodation 310 is accessible from the front side 107 of the luminaire housing 110 for access of the electrical component 311. Hence, the light module 120 may adopt an attached mode or a detached mode, wherein the luminaire 100 provides access to the accommodation 310 and the electrical component 311 in the detached mode.
The exploded view of the luminaire 100 of Fig. 3a further comprises an enclosure 118 arranged to accommodate electrical cabling of the luminaire 100, a screw location 123, a low-voltage (LV) cover 318 arranged to provide a (final) fixation of the electrical component 311, a cable tree location, and assembly bridges 322, wherein the assembly bridge 322 at the accommodation 310 provides light module 120 levelling in front of the electrical component 311.
Fig. 3b schematically shows a portion of luminaire 100 according to an exemplifying embodiment of the present invention. The luminaire 100 comprises a sensor location 324, and a front rim 325. The luminaire 100 further comprises a plurality of light modules 120.
Fig. 4 schematically shows a luminaire 100 according to an exemplifying embodiment of the present invention. Five light modules 120 of the luminaire 100 are in an attached mode, whereby at least part of the respective light module 120 is attached to the luminaire housing 110. One light module 120 of the luminaire 100 is in a detached mode, whereby at least part of the light module 120 is detached from the luminaire housing 110. In this detached mode, the accommodation 310 is accessible from the front side 107 of the luminaire housing 110. The luminaire 100 as exemplified in Fig. 4 is arranged to accommodate an electrical component (e.g. a driver) in the accommodation 310, wherein the driver is arranged to supply electrical power to the light modules 120.
Fig. 5a schematically shows a luminaire 100 according to an exemplifying embodiment of the present invention. The luminaire 100 comprises an electrical component 311 (exemplified as a driver) which is shown in a tilted position. In this tilted position, any electrical cabling to the electrical component 311 is disconnected, and the electrical component 311 is ready to be removed from the front side of the luminaire housing. Fig. 5b schematically shows a luminaire 100 according to an exemplifying embodiment of the present invention. The luminaire 100, which is shown from its back side, comprises a cover 316 arranged to at least partly enclose the accommodation for accommodating the electrical component of the luminaire 100. The accommodation has an oblong shape, and the cover 316 comprises oppositely arranged first and second end portions 320, 321 arranged to enclose the accommodation at oppositely arranged first and second end portions 331, 339 of the accommodation, respectively. The luminaire 100 further comprises a support element 340 for holding the electrical component 311 in place in the accommodation 310. The support element 340 extends along and adjacent the accommodation 310.
In Fig. 5b, the support element 340 is exemplified in the form of a plurality of (gripping or clamping) lips, which may be arranged on opposite sides of the accommodation. When the electrical component 311 is in the accommodation 310, the lips grip or clamp the sides of the electrical component 311, thereby keeping the electrical component 311 in place in the accommodation 310.
Fig. 6 schematically shows a portion of a luminaire 100 according to an exemplifying embodiment of the present invention. The luminaire 100, which is shown from its back side, comprises an enclosure 118 arranged to accommodate electrical cabling of the luminaire 100, wherein the enclosure 118 may be a housing, cover, box, or the like, arranged to accommodate electrical cabling 119, mains cabling (connections), etc., of the luminaire 100. Here, the electrical cabling 119 is exemplified as being arranged in the enclosure 118 in (a) loop(s). The enclosure 118, which is provided at the back side of the luminaire housing of the luminaire 100, comprises a lid 121 being openable and closeable from the back side 220. For example, the lid 121 may be hinged. Fig. 6 further shows that the accommodation of the luminaire 100 and the enclosure 118 are physically integrated, i.e. that the accommodation and the enclosure 118 comprise a common (shared) housing, cover, or the like.
In Figure 6, the support element has a first lip 341 and a second lip 340. The first lip 341 is located approximately at a center of the accommodation. The first lip 341 is oriented at an acute angle relative to the back side of the luminaire housing, such as an angle of 45 degrees. Thereby, the first lip 341 provides a space for allowing a user to grasp the electrical component when it is arranged in the accommodation. The second lip 342 is located adjacent to the first lip 341 on the same side of the accommodation. The second lip 342 is oriented at a substantially right angle relative to the back side of the luminaire housing. Thereby, the second lip 342 provides a surface for clamping a side of the electrical component when it is arranged in the accommodation. Figs. 7a and 7b schematically show cross-sections of a luminaire arrangement comprising a luminaire 100 according to an exemplifying embodiment of the present invention. The luminaire housing 110 comprises an opening 200, in form of a (through) hole, a slit, or the like. The light module 120 is releasably attachable to the luminaire housing 110 by a torsion spring 150 via the opening 200, i.e. that the light module 120 may be (mechanically) attached to, and detached from, the luminaire housing 110. In an attached mode, as shown by both Figs. 7a and 7b, the torsion spring 150 (partially) extends through the opening 200, whereby the light module 120 and the luminaire housing 110 are attached via the torsion spring 150 extending through the opening 200. In a detached mode (not shown), the torsion spring 150 does not extend through the opening 200, whereby at least part of the light module 120 is detached from the luminaire housing 110.
Fig. 7a schematically shows a cross-section of a luminaire 100 of a luminaire arrangement in a first state 210 of an attached mode according to an exemplifying embodiment of the present invention. The pair of legs of the torsion spring 150 extends through the opening 200 of the luminaire housing 110, and each leg of the pair of legs abuts a back side 220 of the luminaire housing 110, whereby the torsion spring 150 biases at least part of the light module 120 towards the luminaire housing 110. Hence, the pair of legs of the torsion spring 150 forces or pushes (at least part of) the light module 120 towards the luminaire housing 110. This results in a (relatively short) distance, d, between (at least part of) the light module 120 and the luminaire housing 110.
Fig. 7b schematically shows a cross-section of a luminaire 100 of a luminaire arrangement in a second state 230 of an attached mode according to an exemplifying embodiment of the present invention. In the second state 230 of the attached mode, the end portion of each leg of the pair of legs abuts the back side 220 of the luminaire housing 110 at a rim 240 of the opening 200. The pair of legs of the torsion spring 150 is positioned between the luminaire housing 110 and the light module 120, whereby at least part of the light module 120 is separated from the luminaire housing 110. This results in a (relatively large) distance, D, between (at least part of) the light module 120 and the luminaire housing 110. The second state 230 of the attached mode represents a “dangling state” by the separation of (at least part of) the light module 120 and the luminaire housing 110.
Fig. 8 schematically shows a luminaire 100 of a luminaire arrangement according to an exemplifying embodiment of the present invention, wherein the view of the luminaire 100 is from its back side. In this example, the luminaire 100 comprises a plurality of openings 200 in the luminaire housing 110, and the luminaire 100 comprises a plurality of torsion springs 150. According to this example of the luminaire 100 of the luminaire arrangement, the light module(s) adopt(s) an attached mode, as the pairs of legs of the torsion springs 150 extend through the respective opening 200 of the luminaire housing 110. In a first state 210 of the attached mode, each leg of the pairs of legs abuts a back side of the luminaire housing 110, whereby the torsion spring 150 biases at least part of the light module 120 towards the luminaire housing 110. In second state 230 of the attached mode, the end portion(s) of the pair of legs abut(s) the back side of the luminaire housing 110 at a rim of the housing, separating the light module and the luminaire housing 110.
Figs. 9a and 9b schematically show flow charts of methods 1000 according to exemplifying embodiments of the second aspect of the present invention. The methods 1000 relate to accessing a luminaire according to the first aspect of the present invention, and it is referred to the previous figure(s) and associated text for details and understanding of the features and functions of the luminaire.
The method 1000 as indicated in Fig. 9a comprises at least one of the following steps:
(i) releasably attaching 1010 at least part of the light module to the luminaire housing, and
(ii) detaching 1020 at least part of the light module from the luminaire housing and accessing 1030 the accommodation from the front side of the luminaire housing for access of the electrical component.
Hence, the method 1000 in Fig. 9a may comprise any one, or any combination, of the step(s) (i) and (ii), as indicated by the dashed lines. For example, the method 1000 may comprise (i) releasably attaching 1020 the light module to the luminaire housing followed by
(ii) detaching 1020 the light module from the luminaire housing. According to another example, the method 1000 may be performed in the reverse order, i.e. (ii) detaching 1020 the light module from the luminaire housing and accessing 1030 the accommodation from the front side of the luminaire housing for access of the electrical component followed by
(i) releasably attaching 1010 the light module to the luminaire housing.
The method 1000 as indicated in Fig. 9b shows an exemplifying embodiment of the method 1000 of Fig. 9a combined with at least one of the following steps of:
(iii) inserting 1040 an electrical component into the accommodation, and
(iv) removing 1050 an electrical component from the accommodation.
The method 1000 according to the example of Fig. 9b comprises the (e.g. sequential) steps of: (iii) inserting 1040 an electrical component into the accommodation,
(i) releasably attaching 1010 at least part of the light module to the luminaire housing,
(ii) detaching 1020 at least part of the light module from the luminaire housing and accessing 1030 the accommodation from the front side of the luminaire housing for access of the electrical component, and
(iv) removing 1050 the electrical component from the accommodation.
The person skilled in the art realizes that the present invention by no means is limited to the preferred embodiments described above. On the contrary, many modifications and variations are possible within the scope of the appended claims. For example, one or more of the luminaire 100, the luminaire housing 110, the light module 120, etc., may have different shapes, dimensions and/or sizes than those depicted/described.

Claims

CLAIMS:
1. A luminaire arrangement comprising a luminaire (100), the luminaire (100) comprising: a luminaire housing (110) comprising a front side (107) and a back side (220), the back side (220) being arranged opposite to the front side (107), and a light module (120) releasably attachable to the front side (107) of the luminaire housing (110), wherein the luminaire housing (110) comprises an accommodation (310) arranged to accommodate an electrical component (311), the accommodation (310) being accessible from the back side (220) of the luminaire housing (110), wherein the luminaire arrangement further comprises the electrical component (311), the electrical component (311) being arranged in the accommodation (310), wherein the luminaire housing (110) comprising a support element (340) for holding the electrical component (311) in place in the accommodation (310), the support element (340) extending along and adjacent the accommodation (310), wherein, in an attached mode of the light module (120), whereby at least part of the light module (120) is attached to the luminaire housing (110), the light module (120) is arranged to at least partly cover the accommodation (310), and wherein, in a detached mode of the light module (120), whereby at least part of the light module (120) is detached from the luminaire housing (110), the accommodation (310) is accessible from the front side (107) of the luminaire housing (110) for access of the electrical component (311).
2. The luminaire arrangement according to claim 1, wherein the accommodation (310) comprises a cavity arranged to accommodate the electrical component (311), wherein the cavity is provided in the luminaire housing (110).
3. The luminaire arrangement according to any one of the preceding claims, further comprising a cover (316) arranged to at least partly enclose the accommodation (310).
4. The luminaire arrangement according to claim 3, wherein the accommodation (310) has an oblong shape, and wherein the cover (316) comprises oppositely arranged first and second end portions (320, 321) arranged to enclose the accommodation (310) at oppositely arranged first and second end portions (331, 339) of the accommodation (310), respectively.
5. The luminaire arrangement according to any one of the preceding claims, wherein the support element (340) has a first lip (341) and a second lip (342), the first lip (341) being oriented at an acute angle relative to the back side (220) of the luminaire housing (110), and the second lip (342) being oriented at a substantially right angle relative to the back side (220) of the luminaire housing (110).
6. The luminaire arrangement according to any one of the preceding claims, further comprising an enclosure (118) and electrical cabling (119), wherein the electrical cabling (119) is arranged in the enclosure (118) and connected to the electrical component (3 H).
7. The luminaire arrangement according to claim 6, wherein the enclosure (118) is provided at the back side (220) of the luminaire housing (110), and wherein the enclosure (118) comprises a lid being openable and closeable from the back side (220).
8. The luminaire arrangement according to claim 6 or 7, wherein the accommodation (310) and the enclosure (118) are physically integrated.
9. The luminaire arrangement according to any one of the preceding claims, wherein the electrical component (311) is a driver arranged to supply electrical power to the light module (120).
10. The luminaire arrangement according to any one of the preceding claims, wherein the luminaire arrangement further comprises a torsion spring (150), wherein the torsion spring (150) comprises a coil (160) and a pair of legs
(170a, 170b) extending from the coil (160), wherein each leg of the pair of legs (170a, 170b) comprises a respective end portion (180a, 180b) distal to the coil (160), wherein the luminaire housing (110) comprises an opening (200), the light module (120) being releasably attachable to the luminaire housing (110) by the torsion spring (150) via the opening (200), wherein, in a detached mode, the torsion spring (150) does not extend through the opening (200), whereby at least part of the light module (120) is detached from the luminaire housing (110), wherein, in an attached mode, the torsion spring (150) partially extends through the opening (200), wherein, in a first state (210) of the attached mode, the pair of legs (170a, 170b) of the torsion spring (150) extends through the opening (200) of the luminaire housing
(110), and each leg of the pair of legs (170a, 170b) abuts the back side (220) of the luminaire housing (110), whereby the torsion spring (150) biases at least part of the light module (120) towards the luminaire housing (110), and wherein, in a second state (230) of the attached mode, the end portion of each leg of the pair of legs (170a, 170b) abuts the back side (220) of the luminaire housing (110) at a rim (240) of the opening (200), and the pair of legs (170a, 170b) of the torsion spring (150) is positioned between the luminaire housing (110) and the light module (120), whereby at least part of the light module (120) is separated from the luminaire housing (110).
11. A method (1000) for accessing the luminaire arrangement according to any one of claims 1 to 10, wherein the method comprises the following steps:
(i) detaching (1020) at least part of the light module (120) from the luminaire housing (110),
(ii) accessing (1030) the accommodation (310) from the front side (107) of the luminaire housing (110) for access of the electrical component (311), and
(111) releasably attaching (1010) at least part of the light module (120) to the luminaire housing (110), wherein the step of accessing (1030) the accommodation (310) from the front side (107) of the luminaire housing (110) comprises at least one of inserting (1040) the electrical component (311) into the accommodation (310), and removing (1050) the electrical component (311) from the accommodation (310).
PCT/EP2024/060539 2023-05-04 2024-04-18 Luminaire and method for accessing a luminaire WO2024227617A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP23171493 2023-05-04
EP23171581.4 2023-05-04
EP23171493.2 2023-05-04
EP23171581 2023-05-04

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WO2006098727A1 (en) * 2005-03-11 2006-09-21 Adaptive Micro Systems Llc Modular system for a display panel assembly
JP2014232713A (en) * 2013-05-30 2014-12-11 パナソニック株式会社 Lighting fixture
US20180031919A1 (en) * 2016-07-26 2018-02-01 Samsung Electronics Co., Ltd. Led display device and structure of assembling the same
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US10627082B1 (en) * 2019-02-25 2020-04-21 Eaton Intelligent Power Limited Row mountable modular flat panel luminaire

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1365376A1 (en) * 2002-05-24 2003-11-26 Toshiba Transport Engineering Inc. Unit connecting mechanism and image display device
WO2006098727A1 (en) * 2005-03-11 2006-09-21 Adaptive Micro Systems Llc Modular system for a display panel assembly
JP2014232713A (en) * 2013-05-30 2014-12-11 パナソニック株式会社 Lighting fixture
US20180031919A1 (en) * 2016-07-26 2018-02-01 Samsung Electronics Co., Ltd. Led display device and structure of assembling the same
KR20190035200A (en) * 2017-09-26 2019-04-03 금호전기주식회사 Light unit
US10627082B1 (en) * 2019-02-25 2020-04-21 Eaton Intelligent Power Limited Row mountable modular flat panel luminaire

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