EP1030998A1 - Projecteur de vehicule automobile equipe d'une lampe et de moyens perfectionnes de blindage electromagnetique - Google Patents
Projecteur de vehicule automobile equipe d'une lampe et de moyens perfectionnes de blindage electromagnetiqueInfo
- Publication number
- EP1030998A1 EP1030998A1 EP99940233A EP99940233A EP1030998A1 EP 1030998 A1 EP1030998 A1 EP 1030998A1 EP 99940233 A EP99940233 A EP 99940233A EP 99940233 A EP99940233 A EP 99940233A EP 1030998 A1 EP1030998 A1 EP 1030998A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lamp
- connector
- mirror
- lamp holder
- projector 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.)
- Granted
Links
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
- F21V25/00—Safety devices structurally associated with 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
- 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
- F21S41/172—High-intensity 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
- F21S41/10—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 present invention relates generally to motor vehicle headlamps equipped with a discharge lamp.
- Discharge lamps in particular of the metal halide type (typically sodium iodine) are increasingly used as light sources in such projectors.
- metal halide type typically sodium iodine
- the present invention aims to overcome these limitations of the state of the art, and to provide a motor vehicle headlamp equipped with a discharge lamp and improved shielding means in particular at the level of the arc of the lamp, which are of simple construction and implementation.
- Another object of the invention is to ensure, without special intervention, the electrical continuity between a shield of high-voltage connector for discharge lamp and other shielding components of the projector, as soon as the connector is put in place .
- the invention provides for this purpose a motor vehicle headlamp, comprising a mirror on which is fixed a lamp holder for mounting a discharge lamp, and a high-voltage connector capable of being attached to the lamp mounted in the lamp holder for ensuring the electrical supply of said lamp, characterized in that the mirror has an electrically conductive layer, in that the lamp holder has a metal part fixed to the mirror so as to be in electrical contact with said layer , in that the connector has a metal shielding envelope, and in that the lamp holder or the connector has at least one elastically deformable conductive tab capable of ensuring electrical continuity between the lamp holder and the connector during mounting of said connector.
- a plurality of elastic tabs are provided. - the or each elastic tongue belongs to the lamp holder.
- the or each elastic tongue is made in one piece with said part of the lamp holder.
- the or each elastic tongue has in its free end region a profile defining a projecting part in the direction of the connector, respectively of the lamp holder.
- the or each elastic tongue extends substantially parallel to the direction of assembly of the connector.
- each elastic tongue extends substantially radially inwards from a ring belonging to the lamp holder and inside which said high-voltage connector is able to be engaged.
- - Said conductive layer of the mirror is applied to a rear face of the mirror and, with electrical continuity, on a surface of the mirror intended for mounting of said crown.
- - Said conductive layer of the mirror is formed by the mirror (10) itself, made of metal sheet.
- FIG. 1 is a schematic view in axial vertical section of a part of a projector according to a first embodiment of the invention
- Figure 2 is a schematic view in axial vertical section of a part of a projector according to a second embodiment of the invention
- FIG. 3 is a schematic view in axial horizontal section of the headlight part of FIG. 2.
- FIG. 1 there is shown a motor vehicle headlamp of elliptical type which conventionally comprises a housing closed at the front by a glass and defining an interior space. These elements have not been shown in the drawings for the sake of simplification.
- a mirror 10 of the ellipsoidal kind in the region of the first focus of which is mounted a discharge lamp 20.
- a convex plane lens 40 is placed in front of the mirror 10 in a well-defined geometric relationship , by being connected to the mirror using an intermediate piece 30.
- the mirror 10 is made of sheet metal stamped in a conventional manner in itself, and is therefore conductive of electricity.
- a lamp holder 50 also made of a conductive material.
- This lamp holder is preferably crimped on the edge of the lamp hole 11 of the mirror 10, using lugs 52, one of which is visible in FIG. 1, so as to ensure electrical continuity between the mirror 10 and the holder - lamp 50.
- the lamp 20 is supplied in a conventional manner per se by a high-voltage connector 60 removably attached to the rear of the lamp holder 50.
- This connector includes a shielded outer casing, for example made of conductive metal sheet.
- Male-female connection elements (not shown), suitably insulated, provide the connection between the connector 60 and the lamp 20 mounted in the lamp holder.
- the lamp holder has a plurality of elastically deformable metal tongues or claws 51 extending rearward from the lamp holder is able to extend along, and in contact with the casing of the connector 60.
- these tabs 51 are five in number and have in the region of their free rear ends 511 a profile in the general shape of “V”, the point of which is directed towards the casing of the connector 60.
- the position of these tabs at rest is such that, when the connector 60 is put in place, its casing biases these tabs outwards, so that the elastic return force thus created in turn urges the ends 511 of the tongues so that they remain in reliable contact with the casing of the connector
- the reference 70 designates means, known per se, for locking the connector 60 on the lamp holder 50.
- tongues 51 can be made in one piece with the lamp holder 50, or be attached thereto and fixed for example by crimping.
- tongues 51 can be provided on the other side of the lamp holder.
- the projector can also include a direct light cover made of sheet metal and placed in front of the lamp 20 inside the mirror 10.
- this cover (not shown) is electrically connected to the lamp holder, to advantageously complete the shielding produced by the other parts.
- FIGS. 2 and 3 another embodiment of the invention has been shown, applicable in particular to projectors the mirror of which is produced by injection of thermosetting material (projectors of the parabolic type or with self-generating reflecting surface d 'at least part of the beam photometry).
- the mirror 10 has on its rear face an electrically conductive layer 12 produced for example by overmolding of the reflector material on or around a thin metal insert or by physical or chemical deposition d '' an electrically conductive coating.
- the discharge lamp 20 is fixed to the reflector using an at least partially metallic crown, generally designated by the reference 50 ′, mounted on the posterior annular end of a flange 13 surrounding the hole lamp 11.
- an at least partially metallic crown generally designated by the reference 50 ′, mounted on the posterior annular end of a flange 13 surrounding the hole lamp 11.
- said layer 12 is extended at 121 at at least part of the external face of the flange 13 of the mirror, then at 122 at at least part of the annular end face of this same flange,
- the crown 50 ′ being attached and fixed - for example by screwing - on this annular end face, is thus in the electrical continuity of said layer 12.
- the continuity of the shielding with the high-voltage connector 60 is produced using a set of metal claws 51 extending here in an essentially radial direction, towards the interior, from crown 50 '.
- These claws have free end regions in the general shape of a "V", the point of which bears against the casing of the connector 60.
- the metallic shield 21 of the lamp 20 which also participates in the picking up of parasitic electromagnetic radiation, is electrically connected to the crown 50 ′ by means of at least one tab.
- FIG. 2 finally illustrates the box 80 housing the ballast circuit of the discharge lamp 20, connected to the high-voltage connector 60 via a shielded cable 90.
- the shielding is ensured between the connector 60, the crown 50 'for mounting the lamp, the conductive layer 12 of the mirror and the shield 21.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9811837 | 1998-09-21 | ||
FR9811837A FR2783593B1 (fr) | 1998-09-21 | 1998-09-21 | Projecteur de vehicule automobile equipe d'une lampe a decharge et de moyens perfectionnes de blindage electromagnetique |
PCT/FR1999/002039 WO2000017570A1 (fr) | 1998-09-21 | 1999-08-25 | Projecteur de vehicule automobile equipe d'une lampe et de moyens perfectionnes de blindage electromagnetique |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1030998A1 true EP1030998A1 (fr) | 2000-08-30 |
EP1030998B1 EP1030998B1 (fr) | 2007-10-24 |
Family
ID=9530725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99940233A Expired - Lifetime EP1030998B1 (fr) | 1998-09-21 | 1999-08-25 | Projecteur de vehicule automobile equipe d'une lampe et de moyens perfectionnes de blindage electromagnetique |
Country Status (7)
Country | Link |
---|---|
US (1) | US6390657B1 (fr) |
EP (1) | EP1030998B1 (fr) |
JP (1) | JP4530316B2 (fr) |
DE (1) | DE69937391T2 (fr) |
ES (1) | ES2296400T3 (fr) |
FR (1) | FR2783593B1 (fr) |
WO (1) | WO2000017570A1 (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3854421B2 (ja) * | 1999-02-23 | 2006-12-06 | 株式会社小糸製作所 | 放電バルブを有する車両用灯具 |
FR2795691B1 (fr) † | 1999-07-02 | 2001-08-17 | Valeo Vision | Projecteur de vehicule automobile equipe d'une lampe a decharge et de moyens de blindage electromagnetique perfectionnes |
FR2816035B1 (fr) | 2000-10-30 | 2003-04-11 | Valeo Vision | Projecteur de vehicule automobile a moyens perfectionnes de blindage electromagnetique |
FR2843445B1 (fr) * | 2002-08-08 | 2005-05-27 | Valeo Vision | Dispositif projecteur equipe d'un module complementaire pour vehicule automobile |
FR2850729B1 (fr) * | 2003-02-04 | 2006-03-17 | Valeo Vision | Dispositif projecteur equipe d'un module complementaire encastrable pour vehicule automobile |
FR2852381B1 (fr) * | 2003-03-14 | 2005-05-27 | Valeo Vision | Dispositif de blindage pour une connexion entre un projecteur et un module complementaire |
DE10322627A1 (de) * | 2003-05-20 | 2004-12-09 | Hella Kgaa Hueck & Co. | Scheinwerfer für Fahrzeuge |
FR2855712B1 (fr) * | 2003-05-26 | 2005-07-15 | Valeo Vision | Actionneur equipe d'une carte electronique avec agencement de limitation des radiations electromagnetiques |
FR2895063A1 (fr) * | 2005-12-20 | 2007-06-22 | Valeo Vision Sa | Porte lampe de projecteur equipe de griffes orientees tangentiellement par rapport a la paroi du porte lampe |
FR2922714B1 (fr) * | 2007-10-19 | 2010-03-12 | Valeo Vision | Dispositif d'alimentation electrique pour une lampe a decharge comportant un blindage de ballast et un blindage de faisceau raccordes en parllele a un potentiel commun |
JP5186473B2 (ja) * | 2009-12-11 | 2013-04-17 | 住友電装株式会社 | 自動車用ヘッドランプ |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4141587A1 (de) * | 1991-12-17 | 1993-06-24 | Bosch Gmbh Robert | Scheinwerfer fuer kraftfahrzeuge |
DE4310307B4 (de) * | 1993-03-30 | 2004-10-14 | Robert Bosch Gmbh | Scheinwerfer für Fahrzeuge |
US5879073A (en) | 1996-01-29 | 1999-03-09 | Koito Manufacturing Co., Ltd. | Vehicular lamp having discharge bulb |
JP3159078B2 (ja) * | 1996-08-30 | 2001-04-23 | 株式会社デンソー | 高圧放電灯装置 |
FR2769072B1 (fr) * | 1997-09-26 | 1999-12-24 | Valeo Vision | Projecteur de vehicule automobile equipe d'une lampe a decharge et de moyens perfectionnes de blindage electromagnetique |
-
1998
- 1998-09-21 FR FR9811837A patent/FR2783593B1/fr not_active Expired - Fee Related
-
1999
- 1999-08-25 JP JP2000571187A patent/JP4530316B2/ja not_active Expired - Fee Related
- 1999-08-25 ES ES99940233T patent/ES2296400T3/es not_active Expired - Lifetime
- 1999-08-25 WO PCT/FR1999/002039 patent/WO2000017570A1/fr active IP Right Grant
- 1999-08-25 US US09/554,626 patent/US6390657B1/en not_active Expired - Lifetime
- 1999-08-25 EP EP99940233A patent/EP1030998B1/fr not_active Expired - Lifetime
- 1999-08-25 DE DE69937391T patent/DE69937391T2/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0017570A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2783593B1 (fr) | 2000-12-29 |
WO2000017570A1 (fr) | 2000-03-30 |
EP1030998B1 (fr) | 2007-10-24 |
JP2002525815A (ja) | 2002-08-13 |
US6390657B1 (en) | 2002-05-21 |
JP4530316B2 (ja) | 2010-08-25 |
DE69937391D1 (de) | 2007-12-06 |
DE69937391T2 (de) | 2008-07-24 |
FR2783593A1 (fr) | 2000-03-24 |
ES2296400T3 (es) | 2008-04-16 |
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