EP0526335A1 - Steckverbinder und Hochspannungslampe Gruppe, insbesondere für die Scheinwerfer eines Fahrzeugs - Google Patents

Steckverbinder und Hochspannungslampe Gruppe, insbesondere für die Scheinwerfer eines Fahrzeugs Download PDF

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Publication number
EP0526335A1
EP0526335A1 EP92402191A EP92402191A EP0526335A1 EP 0526335 A1 EP0526335 A1 EP 0526335A1 EP 92402191 A EP92402191 A EP 92402191A EP 92402191 A EP92402191 A EP 92402191A EP 0526335 A1 EP0526335 A1 EP 0526335A1
Authority
EP
European Patent Office
Prior art keywords
connector
base
contact
lamp
contacts
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
Application number
EP92402191A
Other languages
English (en)
French (fr)
Other versions
EP0526335B1 (de
Inventor
Christophe Dubosc
Manuel Goncalves
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.)
Valeo Vision SAS
Original Assignee
Valeo Vision SAS
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 Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP0526335A1 publication Critical patent/EP0526335A1/de
Application granted granted Critical
Publication of EP0526335B1 publication Critical patent/EP0526335B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/945—Holders with built-in electrical component
    • H01R33/96—Holders with built-in electrical component with switch operated by engagement or disengagement of coupling

Definitions

  • the present invention relates generally to high voltage lamps for projectors, in particular for motor vehicles.
  • Discharge lamps are renowned for their high luminance and their excellent energy efficiency. We are currently seeking to use them in motor vehicle headlights, replacing conventional halogen lamps.
  • Known means for achieving this objective consist in providing, between the supply circuit and the lamp connector, in addition to the two supply wires (including a ground wire), a third wire called state wire or control wire which, when it is connected for example to ground at the connector, indicates that a lamp is correctly in place in the connector.
  • the connector is constructed so that only if the lamp is correctly installed in its connector, an electrical connection between this third wire and ground is established, and so that in the absence of the lamp or incorrect positioning of the lamp, this third wire is isolated from ground.
  • the supply circuit then delivers or not the high voltages required.
  • the present invention aims to provide a particularly simple and economical solution for the practical implementation of the aforementioned means.
  • the lamp comprising a base capable of being engaged in a cavity of the connector, fixing means being provided for mounting the lamp and the assembly of the base and the connector, characterized in that the base comprises first and second contacts for supplying the lamp, in that the connector comprises first and second contacts capable of being connected to the first and second contacts of the base as well as a third contact forming an electrical indicator for the correct fitting of the lamp, and in that the relative movements of the base and of the connector during assembly of the lamp initially cause the first and second contacts of the base to come into contact with the first and second connector contacts, and only then bringing the third connector contact into contact with the second connector contact.
  • the reference 100 designates a connector for a discharge lamp according to the invention, which comprises a body 110 consisting essentially of a substantially cylindrical body part 112 of axis A comprising a housing 114 for a lamp base, and a part body 116 extending laterally relative to the part 112.
  • the cavity 114 is divided into a cylindrical central zone 114a and a peripheral zone 114b coaxial with the central part and separated from the latter by a circular wall 112a from the body part 112.
  • a first terminal 120 is connected to a split female cylindrical stud 122 provided centrally in the cavity 114, for its connection with the hot spot of the lamp.
  • a second terminal 130 is connected to a flexible contact element 132 which projects slightly inwards in a well-defined angular position at the periphery of the zone 114b of the cavity 114, being received in a housing 112b formed in the part body 112. Terminal 130 is intended to be connected to ground.
  • the third terminal 140 is connected to another flexible contact 142 similar to the flexible contact 132 but located, also on the periphery of the zone 114b, in an angular position offset by an angle determined by compared to that of the flexible contact 132, as shown in particular in FIG. 2.
  • the contact 142 is a control contact which makes it possible to restore, for example, at the level of the supply circuit (not shown ) of the lamp, or also on a circuit with a controlled switch, via terminal 140 and an appropriate conductor, information relating to the correct or incorrect mounting of the lamp in the connector, or even to the absence of a lamp.
  • connection terminals 120, 130, 140, the connection parts with the lamp 122, 132, 142 which correspond to them and the associated connection parts, embedded in the body 110 are made in one piece, and sheltered at least partially in suitable insulation 150.
  • the lamp is designated by the reference 200 and essentially comprises a base 210, a bulb 220 and means for assembling the base and the bulb. These elements, well known in the art, will not be described in detail in order to avoid adding to the description.
  • the base 210 has a generally cylindrical contour of axis B and comprises, on the side opposite to the bulb 220, a projecting part 212 coaxial with the base and formed and dimensioned in a complementary manner to the cavity 114 of the connector.
  • the part 212 thus comprises a peripheral crown 212a which surrounds a cylindrical cavity 212b in the center of which protrudes a cylindrical male metal stud 230 forming an electrical hot spot contact and connected via a conductor 232, preferably in one piece with the stud , to a first bulb electrode.
  • the diameter of the cavity 212b is approximately equal to the outside diameter of the wall 112a of the connector 100.
  • the outside diameter of the stud 230 is approximately equal to the inside diameter of the female stud 122 of the connector 100.
  • the part 212 of the base further comprises on its external peripheral surface an electrical ground contact 240 which, as clearly shown in FIGS. 3 and 4, has a large angular extent along this surface.
  • the contact 240 is received in an essentially complementary hollow recess 212c formed in said peripheral surface, so as to be slightly recessed with respect to it.
  • the contact 240 is connected to the second electrode of the bulb via a conductor 242 integrally with it.
  • the angular extent of the ground contact 240 is chosen to be slightly greater than the angular difference which exists between the peripheral contacts 132 and 142, for the purposes explained below.
  • the base 210 of the lamp comprises one or more studs, preferably two diametrically opposed studs, designated by the reference 250.
  • These studs are intended to cooperate with grooves (not referenced) formed in a surface of the reflector of the projector located opposite and having a profile, for example in the shape of an "L”, in such a way that the pins and the grooves define a "bayonet” type mounting of the lamp in the connector, in a manner known in oneself.
  • the base 210 comprises, in a complementary housing formed at its outer periphery and in the vicinity of the projecting part 212, an O-ring 260 which projects slightly outwards relative to the radial surface of transition between the base itself 210 and its projecting part 212.
  • the contact 142 of the connector is "in the air”.
  • the contacts 122, 132 are also.
  • a lamp 200 is placed in the reflector, due to the bayonet mounting, by an initial translational movement, the axes A and B of the connector and the lamp being combined, followed by a rotational movement over an angular interval limited by the extent of the aforementioned grooves.
  • the male stud 230 of the lamp engages in the female stud 122 of the connector, while the peripheral contact 240 of the lamp and the flexible contacts 132 and 142 of the connector come to be placed in a radial plane common.
  • the flexibility of said contacts 132, 142 allowed them to fade outward when passing in front of them the part 212 of the larger base.
  • the mutual position of the contact 240 and of the contacts 132, 142 of the connector is that shown in dashed lines. It is observed that the ground contact 132 of the connector is applied against ground contact 240 of the base, so that the lamp could in theory be powered. However, it is observed that the state contact 142 is always "in the air" due to the particular angular position, imposed by the bayonet mounting, of the contact 240. Under these conditions, an electrical conductor connecting the terminal 140 of the connector to the lamp power supply circuit will allow said circuit to know that the lamp is not correctly installed in its connector, and high voltage power supply will not be generated.
  • the lamp is now rotated (anticlockwise in FIG. 3), until the pins 250 are in abutment at the bottom of their grooves.
  • this rotation is only possible after lightly pressing the lamp in direction of the connector so as to compress the seal 260, to ensure a clearance-free assembly of the base and the connector.
  • FIG. 4 It can be seen that the peripheral contact 240 of the base has turned by an angle such that the two flexible contacts 132, 142 are now applied against it, respectively in the region of each of its ends. .
  • the indicator contact 142 is connected to ground via the contact 240 of the lamp and the contact 132 of the connector.
  • Appropriate detection means provided for example in the lamp supply circuit, make it possible to detect this situation. This means that the lamp is correctly installed, and that the high voltage required to strike and maintain the lamp arc can now be applied to the lamp via terminals 120 and 130, without risk of electric shock. for the operator.
  • the construction according to the invention has many advantages: it is simple and reliable, comprising a minimum of mechanical and electrical components; by requiring only one additional conductor between the connector and the supply circuit; and by being brought into play with a perfectly known lamp fixing principle. In addition it does not increase the size of the connector or the lamp. It also provides the greatest possible security, high-voltage power supply being permitted only in the event of perfect fitting of the lamp.
  • the invention also makes it possible to detect the interruption of the ground conductor or of the indicator contact conductor, and to detect a poor electrical connection between the ground contacts on the base and connector side.
  • a connector and lamp assembly could be provided in which the indication of the correct mounting of the lamp would be carried out by connecting the additional contact 142 not to ground but to the hot point of the lamp supply.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
EP19920402191 1991-08-02 1992-07-30 Steckverbinder und Hochspannungslampe Gruppe, insbesondere für die Scheinwerfer eines Fahrzeugs Expired - Lifetime EP0526335B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9109867A FR2680051B1 (fr) 1991-08-02 1991-08-02 Ensemble de connecteur et de lampe a haute tension, notamment pour projecteur de vehicule automobile.
FR9109867 1991-08-02

Publications (2)

Publication Number Publication Date
EP0526335A1 true EP0526335A1 (de) 1993-02-03
EP0526335B1 EP0526335B1 (de) 1996-01-10

Family

ID=9415875

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920402191 Expired - Lifetime EP0526335B1 (de) 1991-08-02 1992-07-30 Steckverbinder und Hochspannungslampe Gruppe, insbesondere für die Scheinwerfer eines Fahrzeugs

Country Status (4)

Country Link
EP (1) EP0526335B1 (de)
DE (1) DE69207505T2 (de)
ES (1) ES2084306T3 (de)
FR (1) FR2680051B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0586308A1 (de) * 1992-09-04 1994-03-09 Valeo Vision Verbinder- und Hochspannungslampe, insbesondere für Fahrzeug
EP0822626A2 (de) * 1996-08-02 1998-02-04 Hirose Electric Co., Ltd. Lampenfassung
EP0836252A2 (de) * 1996-08-12 1998-04-15 Hirose Electric Co., Ltd. Lampenfassung
EP1063729A1 (de) * 1999-06-23 2000-12-27 Valeo Vision Verbinder für Entladungslampe, insbesondere für Kraftfahrzeuge

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09306203A (ja) * 1996-05-10 1997-11-28 Koito Mfg Co Ltd 放電灯バルブ用ソケット

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0282119A1 (de) * 1987-03-06 1988-09-14 Koninklijke Philips Electronics N.V. Scheinwerfer-Einheit mit Steckvorrichtung
WO1989006448A1 (en) * 1988-01-11 1989-07-13 Eastman Kodak Company Light socket soft start and power interrupt assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0282119A1 (de) * 1987-03-06 1988-09-14 Koninklijke Philips Electronics N.V. Scheinwerfer-Einheit mit Steckvorrichtung
WO1989006448A1 (en) * 1988-01-11 1989-07-13 Eastman Kodak Company Light socket soft start and power interrupt assembly

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0586308A1 (de) * 1992-09-04 1994-03-09 Valeo Vision Verbinder- und Hochspannungslampe, insbesondere für Fahrzeug
FR2695516A1 (fr) * 1992-09-04 1994-03-11 Valeo Vision Ensemble de connecteur et de lampe à haute tension, notamment pour véhicule automobile.
EP0822626A2 (de) * 1996-08-02 1998-02-04 Hirose Electric Co., Ltd. Lampenfassung
EP0822626A3 (de) * 1996-08-02 1998-06-17 Hirose Electric Co., Ltd. Lampenfassung
US5897391A (en) * 1996-08-02 1999-04-27 Hirose Electric Co.,Ltd. Lamp socket
EP0836252A2 (de) * 1996-08-12 1998-04-15 Hirose Electric Co., Ltd. Lampenfassung
EP0836252A3 (de) * 1996-08-12 1998-06-17 Hirose Electric Co., Ltd. Lampenfassung
US5842882A (en) * 1996-08-12 1998-12-01 Hirose Electric Co., Ltd. Lamp socket
EP1063729A1 (de) * 1999-06-23 2000-12-27 Valeo Vision Verbinder für Entladungslampe, insbesondere für Kraftfahrzeuge
FR2795563A1 (fr) * 1999-06-23 2000-12-29 Valeo Vision Connecteur pour lampes a decharge, notamment de vehicule automobile
US6544059B1 (en) 1999-06-23 2003-04-08 Valeo Vision Connector for discharge lamps, especially for a motor vehicle

Also Published As

Publication number Publication date
EP0526335B1 (de) 1996-01-10
FR2680051A1 (fr) 1993-02-05
FR2680051B1 (fr) 1993-12-03
ES2084306T3 (es) 1996-05-01
DE69207505D1 (de) 1996-02-22
DE69207505T2 (de) 1996-05-15

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