EP2131101A1 - Lampe - Google Patents

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Publication number
EP2131101A1
EP2131101A1 EP08010079A EP08010079A EP2131101A1 EP 2131101 A1 EP2131101 A1 EP 2131101A1 EP 08010079 A EP08010079 A EP 08010079A EP 08010079 A EP08010079 A EP 08010079A EP 2131101 A1 EP2131101 A1 EP 2131101A1
Authority
EP
European Patent Office
Prior art keywords
housing
board
luminaire according
light
clamp
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Withdrawn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
EP08010079A
Other languages
German (de)
English (en)
Inventor
Bernd Rommel
Veit Schwegler
Marcus Scherer
Holger Jagdt
Frank Barthel
Horst Melzer
Gerald Vogt
Leopold Hellinger
Gerhard Neumann
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.)
Osram GmbH
Odelo GmbH
Original Assignee
Siemens AG Oesterreich
Osram GmbH
Odelo 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 Siemens AG Oesterreich, Osram GmbH, Odelo GmbH filed Critical Siemens AG Oesterreich
Priority to EP08010079A priority Critical patent/EP2131101A1/fr
Publication of EP2131101A1 publication Critical patent/EP2131101A1/fr
Withdrawn legal-status Critical Current

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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
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/192—Details of lamp holders, terminals or connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/19—Attachment of light sources or lamp holders
    • F21S43/195—Details of lamp holders, terminals or connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • F21S45/48—Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/08—Devices for easy attachment to any desired place, e.g. clip, clamp, magnet
    • F21V21/088—Clips; Clamps
    • 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
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
    • 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
    • F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
    • F21V29/713—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements in direct thermal and mechanical contact of each other to form a single system

Definitions

  • the invention relates to a luminaire according to the preamble of claim 1.
  • a lamp meets e.g. in a motor vehicle depending on the design of various tasks or functions, such as in a design as a headlight a lightens the road function, or in a configuration as a signal light a signal function, such as to the direction indicator or display a braking action, or ensuring visibility of the motor vehicle by day and / or night.
  • lights are on the vehicle's bow, on the vehicle flanks and / or on the side mirrors and rear lights arranged flashing lights, for example, ambient lighting, marker lights, brake lights, fog lamps, reversing lights, and typically high set third brake lights, so-called Central, High-Mounted Braking lights, daytime running lights, headlamps and fog lights used as turning or cornering lights, as well as combinations thereof.
  • a luminaire for example for a motor vehicle, essentially consists of a housing, a reflector arranged therein, a light source typically arranged in front of the reflector, and a transparent cover protecting the reflector and the luminaire against the effects of weathering, also referred to as a light disc, which together with the housing enclosing a reflector and the light receiving space.
  • the housing or the space can be subdivided into a plurality of chambers, each with its own light sources, reflectors and optionally light disks, each of which chamber can fulfill another of the functions described above.
  • LEDs light-emitting diodes
  • LEDs are often also arranged together with required other electronic components on one or more, accommodated in the housing boards or more generally on a plate-like support material.
  • the heat dissipation from the board via a correspondingly large heat sink, which rests on the side facing away from the lamp or reflector side of the board or is arranged.
  • the board itself is made of metal.
  • Such boards are also known as metal core board.
  • Metal core boards represent very expensive solutions. However, these variants usually do not ensure a reliable dissipation of the heat to the outside, but merely effect a distribution of the heat in the space enclosed or closed by the housing and the lens.
  • the invention is therefore an object of the invention to develop a lamp in which a longer life of the arranged in the lamp electronic and electrical components and devices is achieved.
  • a luminaire in particular a luminaire for a motor vehicle, which comprises a housing, a reflector arranged therein, a luminous means arranged in front of the reflector, for example at least one LED and / or at least one light bulb and / or at least one gas discharge lamp, and one the reflector and the luminous means
  • at least one rear side of the printed circuit board facing away from the luminous means is biased against an inner side, thus protecting against the effects of weathering and sealing off the housing, and in which luminaire the luminous means is arranged on at least one circuit board or a carrier plate or a plate-like carrier material an outer wall of the housing pressing bracket. This ensures heat transfer to the housing and to the outside in order to ensure heat dissipation.
  • a standard board such as e.g. a board made of epoxy resin and a glass fiber fabric called FR4 can be used.
  • FR stands for flame retardant or flame retardant.
  • the board is very heated by the light source, preferably an LED. Since the clip presses the board preferably directly in the affected area around the lamp or to the LED against the inside of an outer wall of the housing reliable heat dissipation through the housing wall is ensured to the outside.
  • the term board here refers to any type of plate-like carrier material on which a light source for the purpose of electrical contact and / or for the cooling is or can be arranged.
  • the applied by the at least one clamp bias is ensured that there are no air gaps between the directly heated by the lamp board and the inside of the outer wall of the housing. Such air gaps would in each case interrupt the heat conduction and, in each case, there would be heat flow inhibiting heat transfer at the boundaries between the solid materials of the board and the housing and the intervening gaseous medium, typically air.
  • the bias thus ensures improved heat dissipation from the bulb to the environment surrounding the housing by uninterrupted heat conduction without occurring during heat transfer temperature boundary layers safely.
  • the environment to which the heat dissipates includes both a vehicle body or part of such a body in which the light is installed and the air surrounding the light.
  • the at least one clip preferably presses at least the region of the board lying directly around the luminous means against the inside of an outer wall of the housing.
  • one clamp per board can be provided, or one clamp each between directly adjacent LEDs, light bulbs or gas discharge lamps, or adjacent to the light source.
  • An advantageous embodiment of the invention provides that the at least one clip consists of a resilient material.
  • the bias is created by a force applied through the clamp, the board against the inside of an outer wall of the housing pressing spring load.
  • the at least one circuit board at least partially made of a perpendicular to the light emitting means rear side facing elastically compressible material.
  • the bias is created by an elastic compression of the board between the clamp and the inside of an outer wall of the housing applied, acting against the clamp and against the inside of an outer wall of the housing pressure.
  • a particularly advantageous embodiment of the invention provides that the clip is arranged on that outer wall of the housing or with the outer wall of the housing is in contact, against the inside of the clip presses the back of the board.
  • the clip itself contributes to the direct heat dissipation.
  • the clip is made of a metal.
  • metals are good heat conductors or materials with good heat conductivity.
  • the clip itself is made of a metal, and in addition, it effectively contributes to the heat dissipation by heat conduction.
  • the back of the board can be laminated with copper or another good heat-conducting and preferably soft material.
  • Copper is a very good heat-conducting metal and is also relatively soft, so that it can be adapted or pressed with, for example, curved surfaces with only slight resistance.
  • unevenness resulting from manufacturing inaccuracies can be easily compensated, or the copper provides only slight resistance to the bias voltage, e.g. For example, if the board is arched and pressed against a flat inner surface by the bias, or if e.g. the inside is arched, against which the flat board is pressed by the bias.
  • the housing can be subdivided into several chambers, each with its own light sources, reflectors and, if appropriate, light disks, each chamber fulfilling the same or different functions ,
  • the board can be for example a FR4 board.
  • FR4 circuit boards are inexpensive to produce in series.
  • the luminous means preferably comprises at least one LED and / or at least one light bulb and / or at least one gas discharge lamp.
  • LEDs have a particularly long life and only a small amount of waste heat with a comparatively high luminosity. Also known as incandescent bulbs are widely used and therefore inexpensive to manufacture. Gas discharge lamps have a high luminosity.
  • lamp 01 is a running as a daytime running light 01 lamp 01 for a motor vehicle, which fulfills the function of improving the visibility of a motor vehicle daytime running light.
  • the light 01 or the daytime running light 01 essentially consists of a housing 02, a reflector 03 arranged therein, a light source 04 typically arranged in front of the reflector 03, and a reflector 03 and the light source 04 protecting against the effects of weathering, in short also as Lens 05 designated transparent cover 05.
  • the housing 02 encloses together with the lens 05 and the transparent cover 05 a reflector 03 and the lamp 04 receiving space 06th
  • the housing 02 or the space 06 can be subdivided into a plurality of chambers each having their own light sources 04, reflectors 03 and, if appropriate, light lenses 05 or transparent covers 05. At least one of these chambers can fulfill a different function than that of a daytime running light, for example, a chamber can fulfill the function of a flashing light.
  • the light source 04 is a light-emitting diode (LED) 04.
  • the light-emitting means 04 or the LED 04 is arranged on a plate-like carrier material 07 designed as a plate 07 or as a carrier plate 07.
  • the term board 07 here denotes any type of plate-like substrate 07 on which a light source 04 is arranged for the purpose of electrical contact and / or for the cooling thereof or can be.
  • the lens 05 is transparent and closes the entire lamp 01 to protect the internal components or components from the effects of weather, moisture, dirt, etc.
  • the lens 05 may be made of various materials such as plastic or glass.
  • the reflector 03 directs or reflects the light rays coming from the LED 04 in a desired direction.
  • the reflector 03 is usually made of plastic and is mirrored.
  • the reflector 03 may also be made of a metal casting or a metal sheet.
  • the housing 02 serves to receive the inside of the lamp 01 components and closes the lamp 01 on the back.
  • the light 01 is preferably via the housing 02 at the destination, such as a vehicle front panel attached.
  • the housing 02 is preferably made of plastic, but may also be made of cast metal or sheet metal.
  • the board 07 is an electronic board on which the LED 04 or more LEDs 04 are attached. Furthermore, conductor tracks, possibly plugs and other electronic components are arranged on the board 07. The electronic interconnection of the components is preferably carried out via copper conductor tracks, which are applied to the board 07. The heat dissipation of the electronic components and LEDs 04 takes place on or over the copper surfaces and conductor tracks of the printed circuit board 07 or board 07.
  • the LED 04 is the light source of the lamp 01.
  • other light sources such as incandescent lamps, gas discharge lamps, etc., or combinations thereof can be used.
  • a clip 08 presses one of the LED 04 facing away from the rear side of the board 07 under a bias against an inner side 09 of an outer wall 10 of the housing 02. In this way, a transfer of the output from the LED 04 and forwarded to the board 07 heat to the housing 02 and after guaranteed on the outside.
  • the clip 08 is for this purpose made of a resilient material and has a substantially U-shaped cross-section with two wings 11, 12 and a two wings 11, 12 interconnecting web 13.
  • the rockers 11, 12 are designed such that the board 07 is pressed directly in the affected area around the LED 04 around against the inside 09 of the outer wall 10 of the housing 02.
  • rocker 11 arranged on the housing 02 rocker 11 has two arms 15 which are inserted or inserted into a corresponding recess 14 on the housing 02.
  • the rocker 12 has a side facing away from the web 13 side open, the LED 04 ausquaintde recess 16.
  • the bias applied by the clamp 08 ensures that there are no air gaps between the printed circuit board 07, which is directly heated by the LED 04, and the inner side 09 of the outer wall 10 of the housing 02. Such air gaps would in each case interrupt the heat conduction and it would in each case to the heat flow inhibiting heat transfer at the boundaries between the solid materials of the board 07 and the housing 02 and the intervening gaseous medium, typically air.
  • the bias thus ensures improved heat dissipation from the bulb to the surrounding environment of the housing 02 by uninterrupted heat conduction without occurring during the heat transfer temperature boundary layers safely.
  • the environment to which the heat is dissipated includes both a vehicle body or a part of such a body in which the light 01 is installed, and the air surrounding the light 01.
  • the bracket 08 is preferably made of a metal sheet and presses and holds the board 07 reliably over the life of the lamp 01 to the housing 02. This ensures that the back of the board 07, which is preferably laminated with copper, against the inside 09 an outer wall 10 of the housing 02 is pressed and a heat transfer is ensured by heat conduction to the housing 02 and by further heat conduction and / or heat transfer to the outside, so that the heat dissipation of the LED 04 is ensured.
  • the board 07 is attached to the preferably made of plastic housing 02. Due to the bias of the clip 08, the board 07 is fixed. Thus, a permanent, preferably flat contact between board 07 and housing 02 is guaranteed. Due to the large contact area between the housing 02 and board 07 a good heat dissipation from the board 07 is secured to the housing 02.
  • a lamp according to the invention can also be used as a flashing light, as an exit light, for example, ambient lighting, as a marker light, as a stop lamp, as a fog light, as a reversing light, as a high set third brake light, as a headlight and also be used as a fog lamp used as a turning or cornering light, as well as any combinations thereof.
  • the invention is particularly applicable industrially in the field of manufacturing lights for motor vehicles.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
EP08010079A 2008-06-02 2008-06-02 Lampe Withdrawn EP2131101A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08010079A EP2131101A1 (fr) 2008-06-02 2008-06-02 Lampe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08010079A EP2131101A1 (fr) 2008-06-02 2008-06-02 Lampe

Publications (1)

Publication Number Publication Date
EP2131101A1 true EP2131101A1 (fr) 2009-12-09

Family

ID=39884557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08010079A Withdrawn EP2131101A1 (fr) 2008-06-02 2008-06-02 Lampe

Country Status (1)

Country Link
EP (1) EP2131101A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009054926A1 (de) * 2009-12-18 2011-06-22 Osram Gesellschaft mit beschränkter Haftung, 81543 LED-Beleuchtungsvorrichtung
JP2011154956A (ja) * 2010-01-28 2011-08-11 Panasonic Corp 光源装置、バックライトユニット、および液晶表示装置
DE102010033092A1 (de) * 2010-08-02 2012-02-02 Osram Opto Semiconductors Gmbh Optoelektronisches Leuchtmodul und Kfz-Scheinwerfer
CN103185310A (zh) * 2011-12-30 2013-07-03 海洋王照明科技股份有限公司 灯具及其自锁挂扣结构
EP2863109A1 (fr) * 2013-10-16 2015-04-22 Automotive Lighting Reutlingen GmbH Installation d'éclairage d'un véhicule automobile
WO2017001158A1 (fr) * 2015-07-02 2017-01-05 Hella Kgaa Hueck & Co. Dispositif de fermeture

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10131592C1 (de) 2001-06-29 2002-09-12 Kotzolt Leuchten Träger für Leuchtdioden
DE20300626U1 (de) 2002-11-19 2003-05-28 Electronic Service Willms Gmbh Leiterkarte, Anordnung aus Leiterkarte, Bauteil und/oder Kühlelement sowie Hochleistungs-LED-Anordnung
DE202004012322U1 (de) 2004-08-06 2004-10-28 Kew Konzeptentwicklungs Gmbh Beleuchtungseinrichtung
EP1630474A2 (fr) 2004-08-24 2006-03-01 Koito Manufacturing Co., Ltd Module à émission de lumière et unité d' éclairage
DE202005020760U1 (de) 2005-08-19 2006-07-27 Evi Audio Gmbh Anordnung umfassend einen Kühlkörper und ein daran angeordnetes elektronisches Bauteil
DE102006057569A1 (de) 2005-12-07 2007-06-14 Visteon Global Technologies, Inc., Van Buren Scheinwerferbaugruppe mit integriertem Reflektor und Kühlkörper

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10131592C1 (de) 2001-06-29 2002-09-12 Kotzolt Leuchten Träger für Leuchtdioden
DE20300626U1 (de) 2002-11-19 2003-05-28 Electronic Service Willms Gmbh Leiterkarte, Anordnung aus Leiterkarte, Bauteil und/oder Kühlelement sowie Hochleistungs-LED-Anordnung
DE202004012322U1 (de) 2004-08-06 2004-10-28 Kew Konzeptentwicklungs Gmbh Beleuchtungseinrichtung
EP1630474A2 (fr) 2004-08-24 2006-03-01 Koito Manufacturing Co., Ltd Module à émission de lumière et unité d' éclairage
DE202005020760U1 (de) 2005-08-19 2006-07-27 Evi Audio Gmbh Anordnung umfassend einen Kühlkörper und ein daran angeordnetes elektronisches Bauteil
DE102006057569A1 (de) 2005-12-07 2007-06-14 Visteon Global Technologies, Inc., Van Buren Scheinwerferbaugruppe mit integriertem Reflektor und Kühlkörper

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009054926A1 (de) * 2009-12-18 2011-06-22 Osram Gesellschaft mit beschränkter Haftung, 81543 LED-Beleuchtungsvorrichtung
JP2011154956A (ja) * 2010-01-28 2011-08-11 Panasonic Corp 光源装置、バックライトユニット、および液晶表示装置
DE102010033092A1 (de) * 2010-08-02 2012-02-02 Osram Opto Semiconductors Gmbh Optoelektronisches Leuchtmodul und Kfz-Scheinwerfer
US9255702B2 (en) 2010-08-02 2016-02-09 Osram Opto Semiconductors Gmbh LED lighting module for vehicle headlight
CN103185310A (zh) * 2011-12-30 2013-07-03 海洋王照明科技股份有限公司 灯具及其自锁挂扣结构
CN103185310B (zh) * 2011-12-30 2015-04-22 海洋王照明科技股份有限公司 灯具及其自锁挂扣结构
EP2863109A1 (fr) * 2013-10-16 2015-04-22 Automotive Lighting Reutlingen GmbH Installation d'éclairage d'un véhicule automobile
WO2017001158A1 (fr) * 2015-07-02 2017-01-05 Hella Kgaa Hueck & Co. Dispositif de fermeture
EP3133020B1 (fr) * 2015-07-02 2018-12-19 Induperm A/S Dispositif de fermeture

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