EP4048937A1 - Moyen d'éclairage linéaire à douille ayant une pluralité de diodes électroluminescentes - Google Patents

Moyen d'éclairage linéaire à douille ayant une pluralité de diodes électroluminescentes

Info

Publication number
EP4048937A1
EP4048937A1 EP20800785.6A EP20800785A EP4048937A1 EP 4048937 A1 EP4048937 A1 EP 4048937A1 EP 20800785 A EP20800785 A EP 20800785A EP 4048937 A1 EP4048937 A1 EP 4048937A1
Authority
EP
European Patent Office
Prior art keywords
housing
lighting means
emitting diodes
plug
light
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.)
Pending
Application number
EP20800785.6A
Other languages
German (de)
English (en)
Inventor
Erfindernennung liegt noch nicht vor Die
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.)
Lifa Innovative Lichtsysteme Die Lichtfabrik GmbH
Original Assignee
Lifa Innovative Lichtsysteme Die Lichtfabrik GmbH
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 Lifa Innovative Lichtsysteme Die Lichtfabrik GmbH filed Critical Lifa Innovative Lichtsysteme Die Lichtfabrik GmbH
Publication of EP4048937A1 publication Critical patent/EP4048937A1/fr
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/62—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using mixing chambers, e.g. housings with reflective walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/69—Details of refractors forming part of the light source
    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • 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 invention relates to a socketed, linear lighting means with the Merkma len of the preamble of claim 1.
  • lamps that contain fluorescent tubes are built into the ceiling for area lighting. In order to obtain glare-free light, these are covered by reflective anti-glare elements in order to deflect light rays and prevent people in the room from looking directly at the light source. If a lamp fails, the lamp must be opened by removing the glare control element so that the lamp is accessible.
  • Lamps that contain discharge tubes are increasingly being replaced by completely dig new lamps with integrated light-emitting diodes, because the use of old lamp housings with LED-equipped lamps that simulate discharge tubes does not make sense.
  • the electrical connection must also be changed by replacing starter capacitors and other ballasts.
  • lamps with built-in LEDs are often used.
  • the disadvantage of such lamps is that the light-emitting diodes have a long, but nevertheless limited service life. A complete one However, if all or individual light-emitting diodes fail, lamp replacement is too expensive for lamps that are frequently used.
  • Another problem in fields of application such as workplace lighting is that the lamp must be released in accordance with defined criteria and standards. In contrast to the discharge tubes conventionally used for workplace lighting, which have a somewhat uniform light intensity over their length, light-emitting diodes form very bright points of light and are therefore not easily suitable for direct area lighting.
  • the object of the invention is thus to enable glare-free workplace lighting that is based on replaceable lighting means with light emitting diodes.
  • the lighting means according to the invention forms an independently functional and, above all, glare-free unit. This allows the inven tion according to the lighting means z. B. can be used on a ceiling lamp directly from the underside or detached from there without first having to open a housing and remove glare-free reflectors. Because the lamp has integrated glare control, the associated ceiling lamp in which it can be used can be made very flat.
  • the invention provides a complete optical system with the lighting means, in which the light source formed by a light-emitting diode or group of light-emitting diodes is changed.
  • the optical lens initially causes the beam path to widen.
  • a plano-convex lens element is preferably used, in which the flat side of the light-emitting diode is turned. This allows the desired effect to be achieved with just one lens become. Since there is no focal length on the flat side facing the light-emitting diodes, the overall height does not need to be increased. A small air gap between the LED and the lens is only required to keep the heat load on the lens formed in particular from a transparent plastic within limits.
  • the anti-glare element is arranged below the lenses, as seen in the installation direction, and comprises a recess for each lens, which is framed by inclined and mirrored edge surfaces.
  • the areas around the recess can be shaped like a truncated pyramid.
  • the enclosure is only designed in a manner similar to a truncated pyramid, namely in such a way that the four mirrored surfaces of the enclosure of the recess are in each case not planar, but rather convex.
  • the framing surfaces can be extended downwards in a shaft in which the lens is enclosed on all sides.
  • the optical system described leads to a good light distribution per light source with simultaneously guaranteed glare control. It assumes that the light-emitting diode, lens and anti-glare element are arranged at defined distances one above the other and centered on one another.
  • At least one circuit board with the light-emitting diodes arranged in the grid, a strip-shaped lens element which comprises several optical lenses, and the anti-glare element are inserted into guide rails that are formed on the inside of the housing profile.
  • the width and height of the lighting means according to the invention are each preferably between 36 mm and 40 mm. The amount is included
  • FIG. 1 shows a ceiling lamp with two illuminants
  • a ceiling lamp 200 is shown with two formed according to the invention th illuminants 100, with a view of the underside facing a room.
  • the ceiling lamp 200 has a lamp housing with a surrounding frame 202 with a cover surface 209 and is designed as a built-in cassette for a suspended ceiling.
  • the lighting means 100 can each be detached by pressing against the lamp housing.
  • a lighting means 100 is shown in FIG. It comprises a housing 10 with two end caps 40, 50, via which the mechanical and electrical connection to the ceiling lamp can be established.
  • Two row-shaped anti-glare elements 60 are inserted into the housing 10, each of which has eleven recesses 61 in this example.
  • Optical lenses 31 can be seen within the recesses 61 in the anti-glare elements 60.
  • FIG. 3 shows a disassembled lighting means 100.
  • a glare control element 60 with the recesses 61 is visible.
  • a frusto-pyramidal edge is formed around the recesses.
  • a lens element 30 can be seen which combines several optical lenses.
  • the lens element 30 consists of a plurality of two lined up lenses 31 which are connected to one another via a bridge 32
  • the lighting means 100 furthermore comprises an end cap 40, which is shown enlarged in FIG. It has two U-shaped pole pieces 42, 43 which enclose a receiving area 44 for a contact area of a circuit board.
  • the pole shoes 42, 43 continue in conductor elements which open into a plug element 41. This can be placed in a coupling in the lamp housing and is designed, for example, according to the Zharga Book 14 standard. This plug-coupling connection enables tool-free engagement and disengagement by pressing on the connection.
  • a formed as an aluminum profile housing 10 is also visible, in which a circuit board 20 is arranged along with linear expansion. On their upper side, each light-emitting diodes 21 or groups of light-emitting diodes are arranged at a grid spacing.
  • each group 21 comprises four light-emitting diodes.
  • an optical lens 31 of the Linsenele element 30 and a recess 61 of the anti-glare element 60 are net angeord.
  • the recess is framed by reflector surfaces 62, 63 which extend parallel to the longitudinal extent of the housing 10 or transversely thereto.
  • a contact area 24 at the left end of the circuit board 20 can be inserted into the receiving area 44 (see FIG. 5), an electrical connection to the pole pieces 42, 43 being established.
  • the other side of the housing 10 is closed off by an end cap 50 which is provided with a plug-in base 51 which forms the second point with which the lighting means 100 can be fixed in the lamp housing.
  • FIG. 4 shows a view into the housing 10, in which the end cap 40 and the glare shielding elements 60 have been removed.
  • contact surfaces are formed on the upper and / or lower side, which are intended for contact with the pole pieces 42, 43 (see FIG. 5) on the end cap 40.
  • the housing 10 is designed as an extruded aluminum profile. Heat can be dissipated through the housing.
  • the side walls of the profile have a great height so that the profile is rigid and prevents sagging over the usual lengths of light sources, which can be up to 1.20 m or 1.50 m.
  • the housing has profile rails 11, 12 in cross section, which allow the insertion of the circuit board 20 and the anti-glare elements 60 from the front side, so that these elements no longer need to be separately fastened.
  • FIGS. 6 to 10 each show different assembly stages of the illuminant 100 in a perspective view.
  • the housing 10 is shown, which is manufactured as a section of an extruded aluminum profile. It is already provided with the end cap 50 at one end.
  • the profile rails 11, 12 formed on the inner surfaces of the U-shaped housing profile for inserting the printed circuit board and anti-glare elements are clearly visible.
  • the circuit board 20 is positio ned in its end position in the housing 10. Only the contact area 24 still protrudes. A glare shielding element 60 is pushed into the profile rail 12.
  • a second masking element 60 is added.
  • the dash-dotted line marks the separation between the two glare-free elements 60 lined up next to one another.
  • the lamp 100 is completed by the end cap 40 with the plug element 41 has been placed.
  • the length-dependent components are constructed in such a way that they can be cut to length and / or strung together.
  • the lens element is designed as a strip of optical lenses 31 which can be divided as required.
  • the conductor tracks on the circuit board 20 extend only linearly, at least in the sections between the groups of light-emitting diodes 21, so that the circuit board can also be divided. Due to their complex shape, the anti-glare elements 60 are not divisible, but rather are designed in such a way that they can be strung together for longer lighting means without the strings being optically noticeable.
  • FIG. 11 shows an alternative, short one Illuminant 100 'in which only one anti-glare element 60 is used.
  • the length of a housing 10 ‘, the printed circuit board inserted therein and the lens strip are adapted here.
  • FIG. 12 shows the empty lamp housing 201 seen from the underside.
  • the surrounding frame 202 delimits a side wall 208 which is closed off by a floor 205.
  • the side wall 208 does not extend in height directly to the floor 205, but instead an upstand 203 is provided in between, which fulfills two functions: on the one hand, the lamp housing 201 is stiffened to such an extent that the lamp can be replaced by establishing or removing a pressure-locking connection is possible without the housing buckling.
  • the support plane for the illuminant is raised relative to the floor 205. This ensures that the upper edge of the illuminant is flush with the frame 202.
  • a free installation space 204 is created below the upstand 203 in order to accommodate a coupling for the plug element 41 there and to accommodate the plug socket 51.
  • the upstands 203 have recesses 206, 207.
  • a coupling for receiving the plug element 41 and for establishing an electrical connection therewith is attached to each of the recesses 206.
  • At the recesses 207 each a Stecksockelauf acquisition for the socket 51 is provided.
  • the ceiling lamp 200 is shown, in which a lamp 100 is already inserted. Another illuminant 100 is brought in at an angle so that the end cap 50 with the plug-in base 51 is close to the recess 207 is positioned in the upstand 203.
  • the plug-in base 51 is inserted into a plug-in base receptacle connected to the lamp housing 201.
  • the socket 51 has an axle section at its end. If the socket 51 is inserted into the socket receptacle, it can pivot about this Achsab section.
  • the pivoting movement is indicated by the block arrow in FIG.
  • the lighting means 100 is pivoted until it also rests on the upstand 203 on the other side and the plug element 41 engages in the coupling through the recess 206.
  • the connection on the plug element 41 is designed in such a way that the latching connection to the coupling is canceled by renewed pressure on the plug element 41 and the lamp can be removed again in the reverse order to that described with reference to FIGS. 13 and 14. No tools are required for this.
  • the ceiling lamp 200 does not need to be dismantled in order to change the lighting means 100.
  • FIG. 15 shows a section through a luminous means 100 in the area of one of the recesses in the anti-glare element 60.
  • the recess is bordered in the upper area by planar reflector surfaces 62, 63 and is thus in the shape of a dotted pyramid.
  • a cuboid, likewise mirrored on the inside shaft 64 is formed, in which the optical lens 31 is positioned. This extends only to a little above the edge between the shaft 64 and the adjoining, inclined reflector surfaces 62, 63, so that a good anti-glare effect is achieved.
  • the shaft 64 extends to the circuit board 20 and thus also includes the light emitting diodes 21 in its center.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

L'invention concerne un moyen d'éclairage linéaire à douille (100) comprenant une pluralité de diodes électroluminescentes (21), comprenant au moins un boîtier (10) allongé qui est ouvert sur au moins un côté et qui possède au moins un élément de fiche (41) avec des éléments conducteurs électriques intégrés et/ou qui possède une douille d'enfichage (51) servant au raccordement mécanique et/ou électrique à un boîtier de lampe (201), et qui comprend au moins une carte de circuit imprimé (20) sur laquelle sont disposées les diodes électroluminescentes (21). L'invention est caractérisée en ce qu'une lentille optique convexe (31) et un élément anti-éblouissement (60) sont disposés au-dessus de chaque diode électroluminescente (21), ou groupe de diodes électroluminescentes (21), dans le boîtier (10) qui possède, au-dessus de chaque lentille (31), un évidement (61) qui s'évase vers l'extérieur et qui est réfléchissant au niveau du bord.
EP20800785.6A 2019-10-26 2020-10-26 Moyen d'éclairage linéaire à douille ayant une pluralité de diodes électroluminescentes Pending EP4048937A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202019105957 2019-10-26
PCT/DE2020/100918 WO2021078334A1 (fr) 2019-10-26 2020-10-26 Moyen d'éclairage linéaire à douille ayant une pluralité de diodes électroluminescentes

Publications (1)

Publication Number Publication Date
EP4048937A1 true EP4048937A1 (fr) 2022-08-31

Family

ID=73059354

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20800785.6A Pending EP4048937A1 (fr) 2019-10-26 2020-10-26 Moyen d'éclairage linéaire à douille ayant une pluralité de diodes électroluminescentes

Country Status (3)

Country Link
EP (1) EP4048937A1 (fr)
DE (1) DE202020106264U1 (fr)
WO (1) WO2021078334A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7686484B2 (en) * 2008-01-31 2010-03-30 Kenall Manufacturing Co. Ceiling-mounted troffer-type light fixture
DE202014000570U1 (de) * 2014-01-21 2014-04-03 Bjb Gmbh & Co. Kg Leuchte und Lampe sowie leuchtenseitige Halterung und lampenseitiges Halteteil sowie Lampenfassung und Lampensockel
US20180328552A1 (en) * 2017-03-09 2018-11-15 Lilibrand Llc Fixtures and lighting accessories for lighting devices
JP2019067571A (ja) * 2017-09-29 2019-04-25 山田照明株式会社 Ｌｅｄ照明ユニット及びライン型ベース照明器具

Also Published As

Publication number Publication date
WO2021078334A1 (fr) 2021-04-29
DE202020106264U1 (de) 2020-11-30

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