EP1437545A2 - Projecteur pour véhicule - Google Patents

Projecteur pour véhicule Download PDF

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Publication number
EP1437545A2
EP1437545A2 EP04000118A EP04000118A EP1437545A2 EP 1437545 A2 EP1437545 A2 EP 1437545A2 EP 04000118 A EP04000118 A EP 04000118A EP 04000118 A EP04000118 A EP 04000118A EP 1437545 A2 EP1437545 A2 EP 1437545A2
Authority
EP
European Patent Office
Prior art keywords
reflector
housing
opening
holding
headlight according
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Withdrawn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
EP04000118A
Other languages
German (de)
English (en)
Other versions
EP1437545A3 (fr
Inventor
Erwin Freudenreich
Reiner Gödecker
Roland Dr. Lachmayer
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.)
Hella GmbH and Co KGaA
Original Assignee
Hella KGaA Huek and Co
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 Hella KGaA Huek and Co filed Critical Hella KGaA Huek and Co
Publication of EP1437545A2 publication Critical patent/EP1437545A2/fr
Publication of EP1437545A3 publication Critical patent/EP1437545A3/fr
Withdrawn legal-status Critical Current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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/04—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for filtering out infrared radiation
    • 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
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/17—Discharge light sources
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/39—Attachment thereof
    • 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
    • F21S45/10—Protection of lighting devices
    • 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
    • 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
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
    • 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
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
    • 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
    • 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

Definitions

  • the invention relates to a headlight for vehicles, with a housing, with a translucent cover element for a front opening of the housing, with a bowl-shaped arranged inside the housing Reflector, which has a front edge area on the housing radially and is axially supported, with a light element that passes through a reflector opening and with its light source inside the bowl-shaped reflector is arranged.
  • Such a headlight for vehicles is known from DE - C - 39 03 868.
  • the headlamp has a housing made of plastic.
  • the front opening of the housing is through a translucent cover locked.
  • the back of the housing has such a large opening on that through this a bowl-shaped made of sheet metal Reflector can be used.
  • the reflector is from the back of the case inserted through a rear opening of the housing into the housing and lies with its front edge area against the light exit direction directed contact surface of the housing.
  • the contact surface is one circumferential step formed in the outer wall of the housing.
  • the front one The edge area of the reflector can be fixed to the housing by means of screws.
  • In the apex area of the reflector is a reflector opening for receiving introduced for a light element.
  • the light element is a light bulb or a gas discharge lamp and only on the edge area of the reflector opening supported.
  • a reflector made of plastic can do so heat up strongly so that the reflector deforms slightly due to its own weight and an undesirably large defocus for the light source of the lamp the reflector. The defocus would be particularly large when the light source has a gas discharge lamp with one attached to its base electrical ignition device.
  • Plastic reflectors have opposite the metal reflectors have a significantly increased coefficient of thermal expansion. This leads after the gas discharge lamp is switched on in the warm-up phase of the reflector to ensure that that emerging from the headlight Beams of light over the legally permissible vertical deviation shifts.
  • the holding and guide device Since the light element is not from the reflector but from the outer housing is supported and the outer housing of a much lower temperature exposed than the reflector, is due to the weight of the Light element tilting the longitudinal axis of the light element during the warm-up phase as well as avoided at operating temperature. Because of the holding and guide device is always the reflector at its reflector opening held aligned to the light element. The one that occurs as a result of warming The holding and guiding device takes the longitudinal extent of the reflector on. The heating of the reflector shell and that adjacent to the reflector shell outer housing wall is staggered and the axial relative Paths through thermal expansion are opposed, which makes the location of the illuminant to the optical surface remains approximately constant.
  • the time offset of the opposite expansion from the reflector shell and the outer housing wall adjacent to the reflector shell is negligible small if the reflector is made of a transparent thermoplastic and the reflective surface of the reflector is one that is transparent to infrared light Coating is formed. This causes a large part of that through the filament generated heat dissipated through the reflector to the rear and the outer wall section of the reflector adjacent to the outside of the reflector Housing heats up faster.
  • This construction of the headlamp is special for a light element with a filament such as a halogen lamp advantageous.
  • a reflector made of thermoplastic is with a precise geometry malleable and because of its good malleability leaves a great variety of designs to.
  • the holding and guiding device at the back of the reflector one surrounding the reflector opening first collar and a second collar on the inside of the housing, whereby both collars interlock.
  • the collars also serve for stiffening the reflector or the housing.
  • the reflector is positioned exactly radially to the light source of the light element, if the inside of the reflector opening is a guide element of the holding and Leadership is.
  • the light element is from the back of the headlamp inserted into the housing opening and reflector opening and lies on the outside of the edge area of the housing opening
  • the reflector having a plurality of holding elements on its front edge region has, which are directed against the light exit direction, through holding openings go through the housing and with a holding surface against one the contact surface of the housing facing the light exit direction.
  • the contact surface arranged on the outside of the housing for the holding elements of the front edge area of the reflector and the one surrounding the housing opening, which is used for the installation of the light element outer area of a tool half and the holding surfaces of the holding elements of the reflector and the reflection shell of the reflector from the other Half of the mold removed.
  • a secure installation of the holding elements of the reflector on the contact surfaces of the housing is given if between the front edge area of the reflector and one in the light exit direction pointing contact surface of the housing resilient intermediate elements are arranged, the holding elements against the contact surface of the housing holds.
  • the holding elements of the reflector are radially resilient locking arms directed in the direction of insertion, each reach behind the contact surface and the resilient intermediate elements with a locking lug are molded onto the front edge area of the reflector.
  • the Reflector is simple and through the front opening of the housing can be installed quickly and the connecting elements can be manufactured inexpensively.
  • the housing is simple and torsionally rigid when the bearing surface for the reflector of a circumferential step in the housing and the Reflector with the front edge area adjacent to the inside of the housing.
  • the reflector and the Housing made of plastic, the material of the housing is a has higher temperature resistance than the material of the reflector.
  • the interior dimensions of the housing correspond to the design diversity large for the translucent cover element.
  • the cover can itself, for example, with its circumferential outer edge close to extend the front edge region of the reflector.
  • the light element a gas discharge lamp with an ignition device on its base wearing. Also because of the very heavy base formed by the ignitor of the light element is tilting of the light element and thus defocusing not possible to the reflector.
  • the headlight for vehicles has a cup-shaped made of plastic Housing 1 on.
  • the front opening of the housing 1 is translucent Cover element 3 closed.
  • the cover element 3 is one lens with optical means, with its surrounding edge area is locked to the front edge of the housing 1.
  • a bowl-shaped reflector 4 is inserted through the opening of the housing 1.
  • the reflector 4 lies with its front edge region 5 on a support surface 17, which is formed by a circumferential step in the housing 1 is.
  • the clear width of the housing 1 between the translucent cover element 3 and the bearing surface 17 corresponds approximately to the outer dimensions of the reflector 4 at its front edge area 5.
  • At the front edge area 5 of the reflector 4 are holding elements pointing in its direction of insertion 14 formed, which are formed by resilient locking arms.
  • the reflector 4 can also by the installation of its revolving front Edge area 5 on the inside of the housing 1.
  • the reflector 4 is bowl-shaped and has a reflector opening in its apex area 7, which has a housing opening 9 on the rear of the housing 1 assigned.
  • the holding and guiding device 11 has a reflector opening 7 on the back of the First collar 12 surrounding the reflector 4 and a housing opening 9 on the inside of the housing 1 surrounding second collar 13.
  • the first collar 12 is slidably guided inside the second collar 13.
  • the reflector 4 is held on the housing 1 radially in all directions.
  • a light element 6 formed by a gas discharge lamp lies with its an ignition device 19 having a base on the outer surface of the Housing opening 9 surrounding area 10 of the housing 1 and is on this Area 10 supported.
  • the light element 6 goes with a glass bulb spaced through the housing opening 9 and the reflector opening 7.
  • the light source 8 formed by an arc lies in a focal point of the Reflector 4.
  • the headlight according to FIG. 3 differs from the above by the features described below.
  • As light element 6 serves a halogen lamp (not shown) and the reflector 4 consists of transparent thermoplastic.
  • the reflection surface 20 of the reflector 4 is from a coating permeable to infrared light is formed.
  • the holding and Guide elements 21 are elevations on the second collar 13 of the housing 1 and through holes 22 from which the rear of the housing 1 forming tool half.
  • the holding and guiding elements 21 can also be formed by arms pointing in the direction of light exit, which in Engage recesses in the first collar 12 of the reflector 4 (not shown). As a result, the inner diameter of the first collar 12 of the reflector 4 smaller and the reflection surface of the reflector 4 can be made larger.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP04000118A 2003-01-09 2004-01-07 Projecteur pour véhicule Withdrawn EP1437545A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10300415A DE10300415A1 (de) 2003-01-09 2003-01-09 Scheinwerfer für Fahrzeuge
DE10300415 2003-01-09

Publications (2)

Publication Number Publication Date
EP1437545A2 true EP1437545A2 (fr) 2004-07-14
EP1437545A3 EP1437545A3 (fr) 2005-06-15

Family

ID=32478171

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04000118A Withdrawn EP1437545A3 (fr) 2003-01-09 2004-01-07 Projecteur pour véhicule

Country Status (2)

Country Link
EP (1) EP1437545A3 (fr)
DE (1) DE10300415A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009060032A1 (fr) * 2007-11-07 2009-05-14 Hella Kgaa Hueck & Co. Phare pour un véhicule automobile comportant un logement de module de lumière à compensation de température
EP2006154A3 (fr) * 2007-06-23 2009-10-07 Hella KG Hueck & Co. Phare pour véhicules
EP1637802A3 (fr) * 2004-09-18 2009-11-18 Hella KGaA Hueck & Co. Dispositif d' éclairage pour véhicules
WO2023020794A1 (fr) * 2021-08-20 2023-02-23 Hella Autotechnik Nova S.R.O. Ensemble destiné à la liaison non détachable de pièces en plastique pour une voiture

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011054235B4 (de) * 2011-10-06 2021-01-14 HELLA GmbH & Co. KGaA Beleuchtungsvorrichtung für Fahrzeuge

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3903868C1 (en) * 1989-02-10 1990-04-19 Hella Kg Hueck & Co, 4780 Lippstadt, De Headlamp (headlight) for motor vehicles
FR2704938A1 (fr) * 1993-05-03 1994-11-10 Valeo Vision Dispositif d'éclairage ou de signalisation pour véhicule automobile, comportant une lampe à haute tension et un boîtier perfectionné de circuit d'alimentation.
EP0717233A1 (fr) * 1994-12-12 1996-06-19 Valeo Vision Réflecteur en matière thermoplastique pour projecteur en particulier à coupure de véhicules automobiles
EP0800033A1 (fr) * 1996-04-04 1997-10-08 Valeo Vision Dispositif d'éclairage et/ou de signalisation pour véhicle automobile, avec réflecteur clipsé

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3620800A1 (de) * 1986-06-20 1987-12-23 Bosch Gmbh Robert Befestigungsanordnung fuer reflektoren von kraftfahrzeug-scheinwerfern
FR2787554B1 (fr) * 1998-12-16 2001-03-09 Valeo Vision Element de fixation intermediaire d'un reflecteur sur une partie d'appui d'un projecteur de vehicule automobile, et projecteur comprenant un tel element

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3903868C1 (en) * 1989-02-10 1990-04-19 Hella Kg Hueck & Co, 4780 Lippstadt, De Headlamp (headlight) for motor vehicles
FR2704938A1 (fr) * 1993-05-03 1994-11-10 Valeo Vision Dispositif d'éclairage ou de signalisation pour véhicule automobile, comportant une lampe à haute tension et un boîtier perfectionné de circuit d'alimentation.
EP0717233A1 (fr) * 1994-12-12 1996-06-19 Valeo Vision Réflecteur en matière thermoplastique pour projecteur en particulier à coupure de véhicules automobiles
EP0800033A1 (fr) * 1996-04-04 1997-10-08 Valeo Vision Dispositif d'éclairage et/ou de signalisation pour véhicle automobile, avec réflecteur clipsé

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1637802A3 (fr) * 2004-09-18 2009-11-18 Hella KGaA Hueck & Co. Dispositif d' éclairage pour véhicules
EP2006154A3 (fr) * 2007-06-23 2009-10-07 Hella KG Hueck & Co. Phare pour véhicules
WO2009060032A1 (fr) * 2007-11-07 2009-05-14 Hella Kgaa Hueck & Co. Phare pour un véhicule automobile comportant un logement de module de lumière à compensation de température
US8439544B2 (en) 2007-11-07 2013-05-14 Hella Kgaa Hueck & Co. Headlight for a motor vehicle with temperature-compensated holder for a lamp module
WO2023020794A1 (fr) * 2021-08-20 2023-02-23 Hella Autotechnik Nova S.R.O. Ensemble destiné à la liaison non détachable de pièces en plastique pour une voiture

Also Published As

Publication number Publication date
EP1437545A3 (fr) 2005-06-15
DE10300415A1 (de) 2004-07-22

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