EP3144582B1 - Leuchte - Google Patents

Leuchte Download PDF

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Publication number
EP3144582B1
EP3144582B1 EP16189190.8A EP16189190A EP3144582B1 EP 3144582 B1 EP3144582 B1 EP 3144582B1 EP 16189190 A EP16189190 A EP 16189190A EP 3144582 B1 EP3144582 B1 EP 3144582B1
Authority
EP
European Patent Office
Prior art keywords
light
light source
surrounding wall
heat sink
electric circuit
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.)
Not-in-force
Application number
EP16189190.8A
Other languages
English (en)
French (fr)
Other versions
EP3144582A1 (de
Inventor
Salvi Plaja Miró
Adrià Riqué Rebull
Clara Batiste Mayas
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.)
Simon SA
Original Assignee
Simon SA
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 Simon SA filed Critical Simon SA
Publication of EP3144582A1 publication Critical patent/EP3144582A1/de
Application granted granted Critical
Publication of EP3144582B1 publication Critical patent/EP3144582B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • 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
    • 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
    • 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
    • F21V23/004—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 arranged on a substrate, e.g. a printed circuit board
    • F21V23/006—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 arranged on a substrate, e.g. a printed circuit board the substrate being distinct from the light source holder
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/10—Arrangement of heat-generating components to reduce thermal damage, e.g. by distancing heat-generating components from other components to be protected
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/15—Thermal insulation
    • 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
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/05—Optical design plane
    • 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 relates to a light fixture comprising a light source formed by one or more light emitters that give off heat in the direction opposite the direction of light emission, such as light emitting diodes, for example, of the type of light fixtures which require an electric power supply and/or control circuit, as well as a heat sink arranged for dissipating the heat produced by said light source.
  • a light source formed by one or more light emitters that give off heat in the direction opposite the direction of light emission, such as light emitting diodes, for example, of the type of light fixtures which require an electric power supply and/or control circuit, as well as a heat sink arranged for dissipating the heat produced by said light source.
  • the suitable operation of light fixtures of the type described above requires the light sources to work at an optimum temperature, preventing excessive heating of the electrical part of said light fixtures which lead to rapid wear, breakdown and/or malfunction.
  • heat sinks provided with fins that are manufactured with materials having a high thermal conductivity, such as aluminum or copper, are often used. Said sinks allow absorbing the heat generated by light emitters to subsequently dissipate it into the air by means of heat exchange.
  • the light sources themselves particularly light sources having a higher sensitivity such as LED-type light sources, suffer from the heat generated by the electric circuits, causing them to lose efficiency and to have a reduced service life when working in environments with a temperature higher than their optimum working temperature.
  • Document EP2481973A2 refers to a lamp apparatus that comprises a casing defining a surrounding wall, a light source formed by one or more light emitters that give off heat in the direction opposite the direction of light emission, a heat sink arranged for dissipating the heat produced by the light source into the air, and an electric circuit configured for supplying power to and/or controlling the light source.
  • the electric circuit is housed within the casing, separated from the heat sink, and arranged on a plane located below the heat sink and the light source, in the direction of the path of the light emitted by the light source.
  • the present invention relates to a light fixture the configuration of which allows separating the electric circuit from areas where more heat is generated, and at the same time having better protection against the heat generated by the light source and by the electric circuit itself, and the configuration of which allows reducing its height, and thereby also reducing the minimum height for the assembly thereof, with the respective material savings and the possibility of placing it in places with a more limited headroom.
  • the light fixture of the present invention is defined by the features of claim 1. Preferred embodiments of the same are defined by the features of the dependent claims.
  • the light fixture of the present invention is of the type comprising:
  • the electric circuit is arranged on a plane different from the plane of the heat sink, in the direction of the path of the light emitted by the light source, i.e., on a plane located on the side opposite the side to which the flow of heat emitted by the heat sink itself is directed, a better thermal protection of the electric circuit thus being obtained.
  • the electric circuit is housed within the casing, separated from the heat sink.
  • the electric circuit can thus be separated from the heat sink and the space of the light fixture is optimized to enable housing said electric circuit within the casing.
  • the resulting light fixture is more compact, being able to be installed in places with more limited space.
  • the light source is housed within the heat sink in a housing provided therein.
  • the surrounding wall is preferably provided in the inner part thereof with one or more fixing elements configured for fixing the electric circuit to said surrounding wall.
  • fixing elements can consist of threaded holes for the passage of screws, attachment clips, staplers, supports, etc.
  • the surrounding wall preferably comprises a central opening which is arranged facing the light source and configured for enabling the passage of the light emitted by said light source. Said central opening in turn faces the housing of the heat sink.
  • the surrounding wall comprises a support base on which the heat sink is externally fixed.
  • the light fixture of the present invention preferably also comprises a protective element housed inside the casing, defining an outer wall, a space being established between the surrounding wall and the outer wall, and the electric circuit being arranged in said space.
  • This protective element further favors the thermal insulation of the electric circuit, preventing the actual heat produced by the circuit from being able to negatively affect the light source.
  • the protective element can act only as a physical barrier against the passage of heat, but it can also be manufactured with heat-insulating materials that further favor said thermal insulation.
  • the light reflector of the light fixture is used as protective element.
  • Figure 1 shows an exploded perspective view of the light fixture of the present invention.
  • a downlight-type light fixture for flush-mounted installation is used as an example.
  • the light fixture (1) comprises:
  • FIG. 2 shows a sectioned elevational view of the light fixture (1) of the present invention.
  • the electric circuit (4) is arranged on a plane (P) different from the plane of the heat sink (5), in the direction of the path (R) of the light emitted by the light source (3), in other words, opposite the flow of heat (Q) emitted by said light source (3). It can therefore be stated that the electric circuit (4) is arranged on a plane (P) located below the heat sink (5), and according to this example, also below the light source (3).
  • the electric circuit (4) is housed within the casing (2), separated from the heat sink (5).
  • the light source (3) is in turn housed within the heat sink (5) in a housing (51) provide therein.
  • the surrounding wall (21) is provided in the inner part (21a) thereof with fixing elements (22) configured for fixing the electric circuit (4) to said surrounding wall (21).
  • the surrounding wall (21) comprises a central opening (23) which is arranged facing the light source (3) and configured for enabling the passage of the light emitted by said light source (3).
  • Said central opening (23) in turn faces the housing (51) of the heat sink (5).
  • the surrounding wall (21) comprises an outer frame (24) for being adapted to the mounting surface (false ceiling, gypsum-cardboard or wood enclosures, furniture, etc.) once the light fixture (1) has been mounted.
  • the surrounding wall (21) comprises a support base (25) on which the heat sink (5) is externally fixed.
  • the light fixture (1) comprises a protective element (6) housed inside the casing (2), defining an outer wall (61), a space (S) being established between the inner part (21a) of the surrounding wall (21) and the outer wall (61) of the protective element (6).
  • the electric circuit (4) is arranged in said space (S).
  • the outer wall (61) has a frustoconical shape establishing a space (S) having a triangular cross section with the surrounding wall (21).
  • the protective element (6) is prolonged from an inner end (62) of the outer wall (61), and is configured for housing the light source (3).
  • Figure 3 shows a partially sectioned bottom view of the light fixture (1) of the present invention. Said figure clearly shows the arrangement of the electric circuit (4) within the casing (2) and how it is attached to said casing by means of the fixing elements (22).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (6)

  1. Leuchte, umfassend:
    • einen Mantel (2), welcher eine umgebende Wand (21) definiert;
    • eine Lichtquelle (3), welche aus einem oder mehreren Lichtemittern gebildet ist, welche Wärme (Q) in die der Lichtemissionsrichtung entgegengesetzte Richtung abgeben;
    • eine Wärmesenke (5), welche zum Ableiten der von der Lichtquelle (3) erzeugten Wärme (Q) in die Luft angeordnet ist und außen auf einer Stützbasis (25) der umgebenden Wand (21) befestigt ist; und
    • eine elektrische Schaltung (4), welche dazu ausgebildet ist, der Lichtquelle (3) Strom zuzuführen und/oder dieselbe zu steuern, wobei sie innerhalb des Mantels (2) von der Wärmesenke (5) getrennt aufgenommen ist;
    wobei die elektrische Schaltung (4) auf einer Ebene (P) angeordnet ist, welche sich unter der Wärmesenke (5) und der Lichtquelle (3) befindet, in der Richtung des Weges (R) des von der Lichtquelle (3) emittierten Lichtes, wobei die Lichtquelle (3) in einem topfförmigen Gehäuse (51) aufgenommen ist, welches innerhalb der Wärmesenke (5) angeordnet ist, wobei das topfförmige Gehäuse (51) eine untere Wand und eine zylindrische Seitenwand umfasst, dadurch gekennzeichnet, dass sich eine Vielzahl von V-förmigen Flügeln nach außen von der zylindrischen Seitenwand radial erstrecken.
  2. Leuchte nach Anspruch 1, dadurch gekennzeichnet, dass die umgebende Wand (21) im inneren Teil (21a) derselben mit einem oder mehreren Befestigungselementen (22) versehen ist, welche dazu ausgebildet sind, die elektrische Schaltung (4) an der genannten umgebenden Wand (21) zu befestigen.
  3. Leuchte nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass die umgebende Wand (21) eine mittige Öffnung (23) umfasst, welche der Lichtquelle (3) zugewandt angeordnet ist und dazu ausgebildet ist, den Durchgang des von der genannten Lichtquelle (3) emittierten Lichtes zu ermöglichen.
  4. Leuchte nach Anspruch 3, dadurch gekennzeichnet, dass die mittige Öffnung (23) der umgebenden Wand (21) dem Gehäuse (51) der Wärmesenke (5) zugewandt ist.
  5. Leuchte nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass sie ein Schutzelement (6) umfasst, welches innerhalb des Mantels (2) aufgenommen ist, unter Definierung einer Außenwand (61), wobei ein Raum (S) zwischen dem Innenteil (21a) der umgebenden Wand (21) und der Außenwand (61) des Schutzelementes (6) geschaffen wird; und dass die elektrische Schaltung (4) im genannten Raum (S) angeordnet ist.
  6. Leuchte nach Anspruch 5, dadurch gekennzeichnet, dass das Schutzelement (6) aus einem Lichtreflektor besteht.
EP16189190.8A 2015-09-18 2016-09-16 Leuchte Not-in-force EP3144582B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201531331A ES2569413B1 (es) 2015-09-18 2015-09-18 Luminaria

Publications (2)

Publication Number Publication Date
EP3144582A1 EP3144582A1 (de) 2017-03-22
EP3144582B1 true EP3144582B1 (de) 2019-08-07

Family

ID=55867738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16189190.8A Not-in-force EP3144582B1 (de) 2015-09-18 2016-09-16 Leuchte

Country Status (4)

Country Link
EP (1) EP3144582B1 (de)
CN (1) CN106555955A (de)
ES (2) ES2569413B1 (de)
MX (1) MX367391B (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2865940A2 (de) * 2013-10-24 2015-04-29 Simon, S.A.U. Leuchte

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US8240871B2 (en) * 2007-09-27 2012-08-14 Enertron, Inc. Method and apparatus for thermally effective removable trim for light fixture
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CN201757313U (zh) * 2010-08-24 2011-03-09 浙江名芯半导体科技有限公司 具有良好散热性能的led灯具
CN201748237U (zh) * 2010-08-31 2011-02-16 史杰 一种led筒灯
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EP2481973B1 (de) * 2011-01-31 2014-07-23 Toshiba Lighting & Technology Corporation Lampenvorrichtung und Leuchte
CN202165959U (zh) * 2011-06-23 2012-03-14 安徽瑞煌光电科技有限公司 一种led筒灯集成光源
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JP5757214B2 (ja) * 2011-09-30 2015-07-29 東芝ライテック株式会社 Ｌｅｄ照明装置
CN202452380U (zh) * 2011-12-31 2012-09-26 东莞市亮明光电设备有限公司 Led整体散热灯杯
CN202598177U (zh) * 2012-03-13 2012-12-12 福建省华尔辉光电有限公司 Led筒灯
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EP2865940A2 (de) * 2013-10-24 2015-04-29 Simon, S.A.U. Leuchte

Also Published As

Publication number Publication date
ES2750731T3 (es) 2020-03-26
MX2016011947A (es) 2018-03-13
EP3144582A1 (de) 2017-03-22
CN106555955A (zh) 2017-04-05
ES2569413B1 (es) 2017-02-16
MX367391B (es) 2019-08-19
ES2569413A1 (es) 2016-05-10

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