EP1477726A2 - Recessed luminaire with LED - Google Patents

Recessed luminaire with LED Download PDF

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Publication number
EP1477726A2
EP1477726A2 EP04008520A EP04008520A EP1477726A2 EP 1477726 A2 EP1477726 A2 EP 1477726A2 EP 04008520 A EP04008520 A EP 04008520A EP 04008520 A EP04008520 A EP 04008520A EP 1477726 A2 EP1477726 A2 EP 1477726A2
Authority
EP
European Patent Office
Prior art keywords
fastening
structural unit
led
fastened
box
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP04008520A
Other languages
German (de)
French (fr)
Other versions
EP1477726B1 (en
EP1477726A3 (en
Inventor
Alexander Ludwig
Johannes Riedel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ludwig Leuchten KG
Original Assignee
Ludwig Leuchten KG
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
Priority to DE10322177 priority Critical
Priority to DE10322177A priority patent/DE10322177A1/en
Application filed by Ludwig Leuchten KG filed Critical Ludwig Leuchten KG
Publication of EP1477726A2 publication Critical patent/EP1477726A2/en
Publication of EP1477726A3 publication Critical patent/EP1477726A3/en
Application granted granted Critical
Publication of EP1477726B1 publication Critical patent/EP1477726B1/en
Application status is Expired - Fee Related legal-status Critical
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • F21S8/02Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F21S8/024Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a wall or like vertical structure, e.g. building facade
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • F21S8/02Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/02Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • F21V21/04Recessed bases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Abstract

An LED unit (16) and fixing elements (30) are adapted to a standard electrical socket (2), so that the LED unit is inserted into the socket. Connecting parts (23,24) are connected to mains voltage wires in the socket. A transparent surface (26) of the LED unit faces outwards from the socket.

Description

The invention relates to an LED downlight according to the preamble of claim 1.

Such LED recessed lights are used to accentuate surfaces as well Information lights and orientation lights used.

The object of the invention is to achieve a technically simple and To create an inexpensive way through which such LED recessed lights also are inexpensive to use in large quantities.

This object is achieved according to the invention in that the recessed luminaire has the following features:

  • a structural unit containing at least one LED (light emitting diode, light emitting diode, luminescent diode) as the illuminant; a power supply unit for generating a low electrical voltage which is compatible with the at least one LED from an AC voltage which is higher than that; a rear, a front facing away from this, a light transmission surface on the front for the light of the at least one LED; and connection means of the power supply on a side other than the front for connection to mains voltage lines; characterized in that fastening elements are provided which have a fastening section which can be fastened to the structural unit and a fastening section which can be fastened to a commercially available electrical installation box, the structural unit and the fastener elements being adapted to the internal dimensions of a commercially available electrical installation box in such a way that the structural unit together with it can be inserted into the socket on fastening elements fastened to it and together with mains voltage lines connected to the connection means that the fastening elements fastened to the structural unit can be fastened to the socket when the structural unit is already inserted in the socket and the connecting elements are connected to mains voltage lines in the socket , wherein the light transmission surface of the assembly points in the direction out of the box.
  • The box can be a commercially available electrical installation box or preferably a standard electrical installation flush-mounted box.

    Further features of the invention are contained in the subclaims.

    The invention is described below with reference to the drawings using preferred embodiments as examples. Show in the drawings

    Fig. 1
    an enlarged axial section of a LED downlight according to the invention in a commercially available electrical installation flush-mounted box with z. B. 65 mm inner diameter, as is usually used for sockets and switches,
    Fig. 2
    2 shows a reduced front view of the LED downlight from FIG. 1,
    Fig. 3
    a front view of a commercially available electrical installation box with z. B. 70 mm inner diameter, as is usually used as an electrical junction box,
    Fig. 4
    a front view of a commercially available electrical installation box with z. B. 70 mm inner diameter and pipe socket, as is usually used as an electrical junction box.

    The commercial electrical installation box 2 shown in Fig. 1 has usually an internal axial depth of 45 mm or more, one Inner diameter d1 of 65 mm and a hole center distance d2 of 60.5 mm between two diametrically and axially parallel to the can central axis 3 Fastening openings 4 in the edge of the can or in, towards the center of the can outstanding, projections 6 of the flush-mounted box are formed. The Fastening holes 4 are usually threaded holes, but can be of a different kind. Such flush boxes 2 are usually used Use of flush-mounted sockets or flush-mounted switches.

    Commercially available electrical installation boxes 102 larger in diameter or 202 of FIGS. 3 and 4, as usually as a junction box or junction box used have an inner diameter d1 of 70 mm and a Hole center distance d2 of 66.5 mm between two diametrically apart and Axial parallel to the can center axis arranged mounting holes 4 in Can edge or in inner projections 6, the here too Fastening openings are usually threaded holes.

    The cans 2, 102 and 202 usually have in the bottom 8 and / or in the usually cylindrical or polygonal jacket wall 10 circular perforated Areas that can be broken out for the passage of Electrical installation pipes or electrical cables or wires. The Flush-mounted boxes can additionally have connecting pieces 12, as shown in FIG. 4 shows.

    The built-in lamp according to the invention contains a structural unit 16 shown in FIG. 1, whose diameter is a maximum of 65 mm or smaller, so that they both in In-wall boxes 2 of FIG. 1 as well as in-wall boxes 102 and 202 of FIGS. 3 and 4 can be used. Some, but not all, of the flush-mounted boxes mentioned Have projections 6 with the fastening openings 4, the unit 16 either provided with recesses into which the projections 6 protrude, or the assembly 16 preferably has a maximum diameter d3, which is smaller than the diametrical distance between the projections 6 of the smallest flush-mounted box, which is shown in Fig. 1, in which the distance of the projections 6 from each other is approximately 54 mm. The maximum is therefore preferably Outer diameter d2 of the unit 16 maximum 54 mm or less, for example 50 mm or 49 mm.

    The height H of the assembly is preferably less than the axial depth of that Standard flush box, which has the smallest axial depth. Because the axial The depth of the flush-mounted boxes is usually 45 mm or more, the height H the unit preferably a maximum of 45 mm or less, for example 40 mm or less, for example only 22 mm.

    The assembly 16 contains at least one LED (light emitting diode, Luminescent diode) 18 (only shown schematically); a power supply 20 (only schematically shown) for generating a compatible for the at least one LED low electrical voltage from a relatively higher one Local AC line voltage; a back 22, one facing away from this Front 24 with the light transmission surface 26 of the at least one LED 18; and Connection elements 23, 24, z. B. in the form of electrical lead wires Power supply 20 on a different side than the front 24, for example on the Back 22 or on a peripheral side of the unit 16.

    According to the invention, there are two identically constructed, opposite to each other, Fastening elements 30 arranged on diametrically opposite sides Provided, each having a section 32 and one on the standard electrical installation box 2 (or 102 or 202) have attachable section 34.

    First, the one portion 32 of the fasteners 30 on the assembly 16 with anchoring elements (further fastening elements), preferably Screws 36 and nuts 38 fastened thereon. Before or after the electrical connection elements 23 and 24 of the power supply 20 of the Unit 16 connected to electrical mains voltage lines, which are in the flush-mounted box and belong to an electrical circuit which the power supply 20 of the unit 16 to local network AC voltage can be connected. If the electrical circuit through a switch is connected, the power supply receives 20 local electrical network voltage, converts this into a lower voltage which is more compatible with the at least one LED 18, preferably DC voltage so that the LED 18 light through its Gives light transmission surface 26. The color of the light depends on the type of LED.

    After the connection elements 23 and 24 to the mains voltage lines are connected, the assembly 16 is attached to it Fastening elements 30 inserted into the flush-mounted box 2 (or 102 or 202). The outer fastener sections 34 come on the Can peripheral edge over the mounting openings 4 to lie, these Fastening openings 4 are aligned with fastening openings 40, which are in the outer Fastening sections 34 are formed. The light transmission surface 26 shows in FIG Direction out of the flush-mounted box.

    The fastening elements 30 are preferably Z-shaped brackets, which have a web 42, of which the inner end portion 32 and the outer Extend end portion 34 opposite to each other.

    The light transmission surface 26 of the at least one LED 18 is preferably aligned the outer surface of the outer mounting portions 34, however, could be set back into the cans or protrude from the can.

    So that the same assembly 16 in the different sized flush boxes 2; 102 and 202 can be used, either fasteners 30 with different long outer fastening sections 34 and / or different lengths of inner Fastening sections 32 are used. There is also the possibility to use the same bracket 30, the outer fastening section 34 is so long that it is not only about the mounting holes 4 of the smaller in diameter Flush-mounted box 2 of Fig. 1, but also via the mounting holes 4 in the 3 and 4 protrudes the larger flush-mounted box and to all three boxes has suitable fastening openings.

    The outer fastening section 34 of the fastening elements 30 is by a Anchoring element, for example one screw 46 each on the flush-mounted box 2 (or 102 or 202) attached through the opening of the outer portion 34 extends into and into the mounting opening 4 of the flush-mounted box is screwed in. Instead of the screws, others could Anchoring elements are used, for example pins.

    According to another embodiment of the invention, not shown instead of two fasteners 30, a single cup-shaped Fastener are used, which seen in axial section, the shape of the two fastening elements 30 shown in FIG. 1.

    According to the preferred embodiment of the invention, a cover frame 50 provided that the area between the assembly 16 and the Edge of the flush-mounted box 2 (or 102 or 202) covered and also the outer Sections 34 of the fasteners 30 covered. According to the preferred In the embodiment, the screws 46 also extend through openings 52 of the Cover frame 50, which with the mounting holes 40 of the outer Fastening sections 34 of the fasteners 30 and Fastening openings 4 of the flush-mounted box 2 (102; 202) are aligned. Through heads of the Screws 46 is the cover frame 50 against the flush-mounted box 2 (or 102; 202) tensioned. The cover frame 50 can have a ring shape according to FIGS. 1 and 2 have or according to another embodiment be polygonal or oval or one have a different shape. With only two different sizes of cover frame 50 The assembly 16 can be used both for the smaller diameter cans 2 of FIG. 1 and also for the larger cans 102 and 202 according to FIGS. 3 and 4 used become.

    A plurality of LEDs 18 are preferably provided, each with a small area or emit punctiform light beam through its light transmission surface 16. to Achieve a nicer design and adapt to different ones desired lighting effects, e.g. B. a larger illuminated area over some or all LEDs 18, is preferably a non-transparent, but translucent Disc, preferably an opal disc 60 is provided with which the Light transmission surfaces 26 of the LEDs 18 are covered and which of the Cover frame 50 on the LEDs 18 or on the outer mounting sections 34 of the fasteners 30 or held elsewhere on the assembly 16 becomes.

    A constant current source is also preferably provided in the unit 16 Stabilization of the LED power integrated. The assembly 16 is preferably a Body made of electrically insulating material, such as. B. plastic or ceramic, in which the at least one LED 18 and the power supply 20 and the Constant current source are cast.

    According to an embodiment that is not shown, instead of the Z-shaped brackets 30 Spreading claws attached to the assembly 16, which by screws, which in the Unit 16 can be screwed into the flush-mounted box 2 (or 102 or 202) are expandable to attack on the jacket wall 10 of the flush-mounted box and thereby keeping the assembly 16 in the flush-mounted box, as is the case with switches and sockets is known to fix them in such flush boxes 2. In in this case, the screws 46 of FIG. 1 are used only for fastening the Cover frame 50 on the flush-mounted box, or according to another embodiment for attachment to the assembly 16.

    The surface-mounted or flush-mounted boxes and the assembly 16 can also be others Have dimensions instead of the above, as far as the assembly 16 in the box is installable.

    Claims (7)

    1. LED recessed luminaire, which has the following features:
      a unit (16) containing at least one LED (18) (light emitting diode, light emitting diode, luminescent diode) as the illuminant; a power supply unit (20) for generating a low electrical voltage which is compatible with the at least one LED from a local network alternating voltage which is higher than this; a rear side (22), a front side (24) facing away from this, a light transmission surface (26) on the front side for the light of the at least one LED; and connection means (23, 24) of the power supply unit (20) on a side other than the front side for connection to mains voltage lines;
      characterized in that fastening elements (30) are provided which have a fastening section (32) which can be fastened to the structural unit (16) and a fastening section (34) which can be fastened to a commercially available electrical installation box (2; 102; 202), the structural unit ( 16) and the fastening elements (30) are adapted to the internal dimensions of a commercially available electrical installation box (2; 102; 202) in such a way that the structural unit (16) together with fastening elements (30) fastened to it and together with the connection means (23 , 24) connected to the mains voltage lines in the socket (2; 102; 202) that the fastening elements (30) fastened to the structural unit (16) can be fastened to the socket (2; 102; 202) if the structural unit is already in the Socket is inserted and the connection elements (23, 24) are connected to mains voltage lines in the socket, the light transmission surface (26) of the structural unit (16) in the direction out of the socket (2; 102; 202) out shows.
    2. LED downlight according to claim 1,
      characterized in that the components (30) are Z-shaped brackets, each having a web (42) and the fastening sections (32, 34) extending in opposite directions therefrom, each of which can be fastened to the structural unit (16) and the other is anchored to the box (2; 102; 202).
    3. LED downlight according to claim 2,
      characterized in that the fastening sections (32, 34) of the fastening elements each have at least one opening (40) for receiving an anchoring element (36, 46), by means of which one fastening section (32) on the structural unit (16) and the other fastening section ( 34) of each fastening element (30) can be fastened to the can (2; 102; 202).
    4. LED downlight according to at least one of the preceding claims,
      marked by
      a cover frame (50) which can be positioned on the outside of the structural unit (16) and has a width through which it fastens the fastening elements (30) which are fastened to the structural unit (16) and a space between the structural unit (16) and the can (2; 102; 202) as well as this can cross-covered.
    5. LED downlight according to claim 3 and 4,
      characterized in that the anchoring elements (46) of the other fastening section (34) are designed to simultaneously fasten the cover frame (50) and the other fastening section (34) of the fastening elements (30) to the box (2; 102; 202).
    6. LED downlight according to at least one of claims 3 to 5,
      characterized in that at least some of the anchoring elements (34, 46) are screws.
    7. LED downlight according to at least one of the preceding claims,
      characterized in that the box (2; 102; 202) is a standard electrical installation flush-mounted box.
    EP04008520A 2003-05-16 2004-04-08 Recessed luminaire with LED Expired - Fee Related EP1477726B1 (en)

    Priority Applications (2)

    Application Number Priority Date Filing Date Title
    DE10322177 2003-05-16
    DE10322177A DE10322177A1 (en) 2003-05-16 2003-05-16 LED downlight

    Publications (3)

    Publication Number Publication Date
    EP1477726A2 true EP1477726A2 (en) 2004-11-17
    EP1477726A3 EP1477726A3 (en) 2005-09-14
    EP1477726B1 EP1477726B1 (en) 2008-04-23

    Family

    ID=33016427

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP04008520A Expired - Fee Related EP1477726B1 (en) 2003-05-16 2004-04-08 Recessed luminaire with LED

    Country Status (3)

    Country Link
    EP (1) EP1477726B1 (en)
    AT (1) AT393355T (en)
    DE (2) DE10322177A1 (en)

    Cited By (8)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2006111774A1 (en) * 2005-04-22 2006-10-26 Global Design Solutions Limited Light fitting
    GB2427458A (en) * 2006-04-24 2006-12-27 Global Design Solutions Ltd Light fitting
    EP2239497A1 (en) * 2009-04-07 2010-10-13 Abb Ag Built-in LED
    EP2348248A1 (en) * 2010-01-23 2011-07-27 Abb Ag Built-in LED light with supporting plate
    EP2363634A3 (en) * 2010-02-27 2013-03-06 Abb Ag Built-in LED light, in particular ceiling light
    US8591058B2 (en) 2011-09-12 2013-11-26 Toshiba International Corporation Systems and methods for providing a junction box in a solid-state light apparatus
    EP2348249B1 (en) * 2010-01-23 2017-07-26 Abb Ag Built-in LED
    EP3396234A1 (en) * 2017-04-28 2018-10-31 Insta GmbH Illumination device

    Families Citing this family (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE102007017329B4 (en) * 2006-04-15 2010-11-11 Gira Giersiepen Gmbh & Co. Kg Luminaire for building installation

    Citations (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE19919080A1 (en) * 1999-04-27 2000-11-02 Insta Elektro Gmbh & Co Kg Lighting device for illuminating surfaces and spaces incorporates light-emitting semiconductor elements acting as sources of light supplied with a power source and controlled by electronic components.
    DE20018455U1 (en) * 2000-10-28 2001-01-11 Ansorg Gmbh recessed light
    DE20101295U1 (en) * 2001-01-24 2001-04-05 Drees Leuchtenteile Gmbh Illumination device for operation with an alternating current network
    US20030021104A1 (en) * 2001-05-16 2003-01-30 Tsao Frank Wen-Chung Sensitive lighting fixture for construction junction box

    Family Cites Families (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    ES325142A1 (en) * 1965-12-28 1967-01-01 Bassani Spa Improvements in the recessed assemblies for electric lighting.
    US3524068A (en) * 1967-09-25 1970-08-11 Palleon Electronics Ltd Mounting assembly for lamp and photocell units
    FR2781869B1 (en) * 1998-07-28 2004-12-17 3Sa Light device for recessing into a wall
    FR2786256B1 (en) * 1998-11-25 2001-04-27 Legrand Sa window type of luminaire, input (s) of tangential cable (s)
    DE10103781A1 (en) * 2001-01-29 2002-08-22 Zimmermann Gmbh Co Kg Rudolf Device for illuminating escape routes, has reflector body replaceably mounted in housing with separate holders for groups of white light LEDs with common wiring systems

    Patent Citations (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE19919080A1 (en) * 1999-04-27 2000-11-02 Insta Elektro Gmbh & Co Kg Lighting device for illuminating surfaces and spaces incorporates light-emitting semiconductor elements acting as sources of light supplied with a power source and controlled by electronic components.
    DE20018455U1 (en) * 2000-10-28 2001-01-11 Ansorg Gmbh recessed light
    DE20101295U1 (en) * 2001-01-24 2001-04-05 Drees Leuchtenteile Gmbh Illumination device for operation with an alternating current network
    US20030021104A1 (en) * 2001-05-16 2003-01-30 Tsao Frank Wen-Chung Sensitive lighting fixture for construction junction box

    Cited By (9)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2006111774A1 (en) * 2005-04-22 2006-10-26 Global Design Solutions Limited Light fitting
    GB2427458A (en) * 2006-04-24 2006-12-27 Global Design Solutions Ltd Light fitting
    EP2239497A1 (en) * 2009-04-07 2010-10-13 Abb Ag Built-in LED
    RU2538781C2 (en) * 2009-04-07 2015-01-10 Абб Аг Led light fixture for recessed mounting
    EP2348248A1 (en) * 2010-01-23 2011-07-27 Abb Ag Built-in LED light with supporting plate
    EP2348249B1 (en) * 2010-01-23 2017-07-26 Abb Ag Built-in LED
    EP2363634A3 (en) * 2010-02-27 2013-03-06 Abb Ag Built-in LED light, in particular ceiling light
    US8591058B2 (en) 2011-09-12 2013-11-26 Toshiba International Corporation Systems and methods for providing a junction box in a solid-state light apparatus
    EP3396234A1 (en) * 2017-04-28 2018-10-31 Insta GmbH Illumination device

    Also Published As

    Publication number Publication date
    AT393355T (en) 2008-05-15
    DE502004006881D1 (en) 2008-06-05
    EP1477726A3 (en) 2005-09-14
    DE10322177A1 (en) 2004-12-02
    EP1477726B1 (en) 2008-04-23

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