EP1447619A1 - Beleuchtungsseinrichtung, insbesondere Scheinwerfer z.B. dichte Bodeneinbauleuchte, die durch Luftströmung gekühlt ist - Google Patents

Beleuchtungsseinrichtung, insbesondere Scheinwerfer z.B. dichte Bodeneinbauleuchte, die durch Luftströmung gekühlt ist Download PDF

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Publication number
EP1447619A1
EP1447619A1 EP03425084A EP03425084A EP1447619A1 EP 1447619 A1 EP1447619 A1 EP 1447619A1 EP 03425084 A EP03425084 A EP 03425084A EP 03425084 A EP03425084 A EP 03425084A EP 1447619 A1 EP1447619 A1 EP 1447619A1
Authority
EP
European Patent Office
Prior art keywords
lighting device
air
light source
fan
ensuring
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.)
Withdrawn
Application number
EP03425084A
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English (en)
French (fr)
Inventor
Franco Biasoli
Francis Roche
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.)
Exterieur Vert SA
Original Assignee
Exterieur Vert 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 Exterieur Vert SA filed Critical Exterieur Vert SA
Priority to EP03425084A priority Critical patent/EP1447619A1/de
Priority to US10/440,893 priority patent/US7021793B2/en
Publication of EP1447619A1 publication Critical patent/EP1447619A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
    • 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
    • F21S8/022—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a floor or like ground surface, e.g. pavement or false floor

Definitions

  • the present invention relates to a "Device lighting, in particular a projector such as a luminaire waterproof embedded in the ground »
  • These components are installed in a housing waterproof for outdoor use, intended especially to be embedded in the ground using a reservation pot which defines the volume allocated to the device.
  • the disadvantage of this lighting device lies in the significant heating of the material translucent in contact with the outside and ensuring transmission of the optical beam.
  • Normative provisions are developed for manage this type of risk by classifying the lighting devices depending on conditions use.
  • the present invention aims to develop a lighting device, in particular a projector waterproof intended to be embedded, in the ground, to significantly reduce the temperature on the translucent material in order to make the contact of it non-dangerous like this is described above.
  • the invention relates to a device lighting of the type defined above, characterized in what it includes an electric fan allowing to generate a closed-circuit air movement at inside the lighting fixture.
  • This air movement is optimized on the one hand for eliminate hot spots especially the one that is obtained at the level of the translucent material used to transmit the optical beam to the outside and secondly to promote dissipation thermal towards the outside of the product thanks to a outer shell made of a material with a good thermal conductivity.
  • This invention also makes it possible to lower the proper temperature of the electrical components of the ballast type, capacitor, initiator, necessary to ensure the operation of the light source when these components are integrated into the lighting device.
  • the fan is designed to draw air heated by the light source, in particular of the type discharge lamp, electrical components in particular of the ballast type ensuring operation correct from source.
  • the air heated is sent to the bottom of the lighting device thus allowing an exchange optimal thermal with the outer casing made of a material with a conductivity coefficient Student.
  • the air flow thus cooled is then directed towards the upper part of the lighting device at through a mechanical guiding device: this air comes into contact at the top with the translucent material used to transmit the outward optical beam, contributing to significantly reduce its temperature.
  • Air flows can be in both directions.
  • the ventilation system operating in closed circuit, tightness of the device lighting, when required is not modified by the implementation of this system of cooling.
  • Figure 2 is shown a variant of the object lighting device
  • Figure 3 is shown a variant of the device in object; provided with a double glass;
  • Figure 4 is shown a view detail of the double glass, applicable to the device as an object, with the aim of significantly reducing the temperature on the translucent material.
  • the invention relates to a lighting device emitting a directional light beam.
  • Such a lighting device is in particular a waterproof floodlight intended to be recessed in the ground.
  • the invention relates to a system allowing to lower the material temperature translucent (1) used for the passage of light emitted by the lighting device in order to avoid risk of burns.
  • a fan (8) draws in the air heated by its passage over the light source (3) and over the components of the electrical unit (9) and rejects it on the rear part (13) of the body (5) constituting the outer casing of the lighting device.
  • a air guide system constituted by the body (5) and the tube (4) returns the cooled air to the part upper allowing circulation in circuit closed.
  • the light source is in particular a lamp with landfill operating with electrical equipment adapted itself integrated into the device lighting.
  • the definition of the installation volume is delimited using the reservation pot (6).
  • the device consists of a body (5) on which is fixed a disc (2) supporting a material translucent (1) ensuring the transmission of light to the outside.
  • This translucent material is cooled by convection forced by an air flow (12) ensuring optimal heat exchange.
  • the air return device consists of in particular an inner tube (4) is positioned concentric with the body (5).
  • This device performs the functions (not represented on the general and principle diagram) supporting the optical reflector (11) at the source light (3) and its socket (10) placed at the focal point of the reflector, to the electrical unit (9) ensuring the light source and fan.
  • the assembly order between the electrical unit (9) and the fan (8) is not critical and may be reversed.
  • the suction caused by the fan (8) causes air movement inside the tube (4).
  • ballast in particular ballast, capacitor, initiator is made to promote the air circulation towards the fan.
  • the direction of the air flow is not critical and can be reversed.
  • the mechanical parts ensuring the functions of support for reflector, light source, electrical components have lights for promote the flow of air flowing by fan direction.
  • the air flow drawn in by the fan (8) passes through it then is directed on the lower part (13) of the body (5) ensuring heat exchange with it by convection forced.
  • the cable (7) provides power to the fan (8) and the power supply unit light source (9).
  • Figure 3 is shown a device lighting, provided with a double layer 21 and 22 of translucent material.
  • Layers 21 and 22 of translucent material are separated by a spacer element 23 made of material insulation, so as to create a gap 24 and significantly reduce the temperature on the translucent material on the outer layer 21 of the translucent material.
  • object lighting device may be applied, other than to the ground, in different positions near the ground, but raised.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP03425084A 2003-02-12 2003-02-12 Beleuchtungsseinrichtung, insbesondere Scheinwerfer z.B. dichte Bodeneinbauleuchte, die durch Luftströmung gekühlt ist Withdrawn EP1447619A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP03425084A EP1447619A1 (de) 2003-02-12 2003-02-12 Beleuchtungsseinrichtung, insbesondere Scheinwerfer z.B. dichte Bodeneinbauleuchte, die durch Luftströmung gekühlt ist
US10/440,893 US7021793B2 (en) 2003-02-12 2003-05-19 Ground-embedded air cooled lighting device, in particular floodlight or sealed lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03425084A EP1447619A1 (de) 2003-02-12 2003-02-12 Beleuchtungsseinrichtung, insbesondere Scheinwerfer z.B. dichte Bodeneinbauleuchte, die durch Luftströmung gekühlt ist

Publications (1)

Publication Number Publication Date
EP1447619A1 true EP1447619A1 (de) 2004-08-18

Family

ID=32669069

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03425084A Withdrawn EP1447619A1 (de) 2003-02-12 2003-02-12 Beleuchtungsseinrichtung, insbesondere Scheinwerfer z.B. dichte Bodeneinbauleuchte, die durch Luftströmung gekühlt ist

Country Status (2)

Country Link
US (1) US7021793B2 (de)
EP (1) EP1447619A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006025019A1 (en) * 2004-09-02 2006-03-09 Koninklijke Philips Electronics N.V. Lamp assembly comprising a high- pressure gas discharge lamp
EP2119960A1 (de) * 2007-09-26 2009-11-18 Light Boy CO., LTD. Flutlichtvorrichtung
CN108679552A (zh) * 2018-04-03 2018-10-19 扬州同略科技发展有限公司 一种高效散热太阳能led路灯
US11287103B2 (en) 2019-04-22 2022-03-29 Ism Lighting, Llc. Low wattage balloon work light

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7182484B2 (en) * 2003-03-07 2007-02-27 Fiberstars, Inc. Light appliance and cooling arrangement
US7275848B2 (en) * 2005-02-16 2007-10-02 Visteon Global Technologies, Inc. Headlamp assembly having cooling channel
US7168825B2 (en) * 2005-04-07 2007-01-30 Mcarthur Robert M Recessed light fixture
US7758223B2 (en) * 2005-04-08 2010-07-20 Toshiba Lighting & Technology Corporation Lamp having outer shell to radiate heat of light source
DE102006014003A1 (de) * 2006-03-27 2007-10-04 Berchtold Holding Gmbh Medizinische Leuchte
JP4569683B2 (ja) 2007-10-16 2010-10-27 東芝ライテック株式会社 発光素子ランプ及び照明器具
JP5353216B2 (ja) * 2008-01-07 2013-11-27 東芝ライテック株式会社 Ｌｅｄ電球及び照明器具
US8167459B2 (en) * 2008-06-25 2012-05-01 Bwt Property, Inc. LED lighting fixture
WO2009157285A1 (ja) * 2008-06-27 2009-12-30 東芝ライテック株式会社 発光素子ランプ及び照明器具
TW201018840A (en) * 2008-11-10 2010-05-16 Jiahn-Chang Wu Airtight LED lamp with an internal circulating fan
JP5333758B2 (ja) 2009-02-27 2013-11-06 東芝ライテック株式会社 照明装置および照明器具
JP5354191B2 (ja) * 2009-06-30 2013-11-27 東芝ライテック株式会社 電球形ランプおよび照明器具
JP5348410B2 (ja) * 2009-06-30 2013-11-20 東芝ライテック株式会社 口金付ランプおよび照明器具
JP2011049527A (ja) * 2009-07-29 2011-03-10 Toshiba Lighting & Technology Corp Ｌｅｄ照明装置
JP2011071242A (ja) * 2009-09-24 2011-04-07 Toshiba Lighting & Technology Corp 発光装置及び照明装置
JP2011091033A (ja) * 2009-09-25 2011-05-06 Toshiba Lighting & Technology Corp 発光モジュール、電球形ランプおよび照明器具
CN102032479B (zh) * 2009-09-25 2014-05-07 东芝照明技术株式会社 灯泡型灯以及照明器具
CN102032481B (zh) * 2009-09-25 2014-01-08 东芝照明技术株式会社 附带灯口的照明灯及照明器具
US8678618B2 (en) * 2009-09-25 2014-03-25 Toshiba Lighting & Technology Corporation Self-ballasted lamp having a light-transmissive member in contact with light emitting elements and lighting equipment incorporating the same
JP5257622B2 (ja) 2010-02-26 2013-08-07 東芝ライテック株式会社 電球形ランプおよび照明器具
TWI397650B (zh) * 2010-09-15 2013-06-01 Sunonwealth Electr Mach Ind Co 燈具
US20140211486A1 (en) * 2013-01-30 2014-07-31 Edward T. Rodriguez Heat exchanger for led light fixture
US9353924B2 (en) 2014-01-10 2016-05-31 Cooper Technologies Company Assembly systems for modular light fixtures
US9383090B2 (en) 2014-01-10 2016-07-05 Cooper Technologies Company Floodlights with multi-path cooling

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE443357A (de) * 1937-07-25 1900-01-01 Westfaelische Metall Ind Akt G
DE960370C (de) * 1954-11-21 1957-03-21 Siemens Ag Leuchte fuer Hochdrucklampen, insbesondere fuer Xenon-Lampen, bei der die Lampen innerhalb eines gegen das Eindringen von Gasen aus dem Aussenraum geschuetzten Leuchtengehaeuse mit lichtdurchlaessiger Abschlussscheibe untergebracht sind
FR2779804A1 (fr) * 1998-06-11 1999-12-17 Valeo Vision Projecteur de vehicule automobile pourvu de moyens de refroidissement perfectionnes, et correcteur d'assiette associe
DE19916474A1 (de) * 1999-04-13 2000-10-26 Ist Metz Gmbh Bestrahlungsgerät
EP1164328A2 (de) * 2000-06-16 2001-12-19 Matsushita Electric Industrial Co., Ltd. Lampeneinheit und Bildprojektionsanordnung

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WO1989006770A1 (en) * 1988-01-14 1989-07-27 Haehnel Walter Lighting unit
US4984139A (en) * 1990-02-20 1991-01-08 Goggia Steven J Pop-up landscape light
US5479322A (en) * 1993-07-16 1995-12-26 Fiberstars, Inc. Lighting system and method for fiber optic and area illumination
JP3231621B2 (ja) * 1996-05-10 2001-11-26 松下精工株式会社 照明付換気扇
US5887966A (en) * 1997-06-13 1999-03-30 Ruud Lighting, Inc. In-ground lighting apparatus and related method
US6068384A (en) * 1998-04-07 2000-05-30 Nsi Enterprises, Inc. Lighting system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE443357A (de) * 1937-07-25 1900-01-01 Westfaelische Metall Ind Akt G
DE960370C (de) * 1954-11-21 1957-03-21 Siemens Ag Leuchte fuer Hochdrucklampen, insbesondere fuer Xenon-Lampen, bei der die Lampen innerhalb eines gegen das Eindringen von Gasen aus dem Aussenraum geschuetzten Leuchtengehaeuse mit lichtdurchlaessiger Abschlussscheibe untergebracht sind
FR2779804A1 (fr) * 1998-06-11 1999-12-17 Valeo Vision Projecteur de vehicule automobile pourvu de moyens de refroidissement perfectionnes, et correcteur d'assiette associe
DE19916474A1 (de) * 1999-04-13 2000-10-26 Ist Metz Gmbh Bestrahlungsgerät
EP1164328A2 (de) * 2000-06-16 2001-12-19 Matsushita Electric Industrial Co., Ltd. Lampeneinheit und Bildprojektionsanordnung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006025019A1 (en) * 2004-09-02 2006-03-09 Koninklijke Philips Electronics N.V. Lamp assembly comprising a high- pressure gas discharge lamp
EP2119960A1 (de) * 2007-09-26 2009-11-18 Light Boy CO., LTD. Flutlichtvorrichtung
EP2119960B1 (de) * 2007-09-26 2014-07-23 Light Boy CO., LTD. Flutlichtvorrichtung
CN108679552A (zh) * 2018-04-03 2018-10-19 扬州同略科技发展有限公司 一种高效散热太阳能led路灯
US11287103B2 (en) 2019-04-22 2022-03-29 Ism Lighting, Llc. Low wattage balloon work light

Also Published As

Publication number Publication date
US20040156191A1 (en) 2004-08-12
US7021793B2 (en) 2006-04-04

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