EP1419513B1 - Interrupteur a cle pour un vehicule automobile - Google Patents

Interrupteur a cle pour un vehicule automobile Download PDF

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Publication number
EP1419513B1
EP1419513B1 EP02764550A EP02764550A EP1419513B1 EP 1419513 B1 EP1419513 B1 EP 1419513B1 EP 02764550 A EP02764550 A EP 02764550A EP 02764550 A EP02764550 A EP 02764550A EP 1419513 B1 EP1419513 B1 EP 1419513B1
Authority
EP
European Patent Office
Prior art keywords
key
operated switch
switch according
switching member
housing
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.)
Expired - Lifetime
Application number
EP02764550A
Other languages
German (de)
English (en)
Other versions
EP1419513A1 (fr
Inventor
Gerd Rudolph
Reiner Luley
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies Inc
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 Delphi Technologies Inc filed Critical Delphi Technologies Inc
Publication of EP1419513A1 publication Critical patent/EP1419513A1/fr
Application granted granted Critical
Publication of EP1419513B1 publication Critical patent/EP1419513B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
    • H01H27/06—Key inserted and then turned to effect operation of the switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/56—Angularly-movable actuating part carrying contacts, e.g. drum switch
    • H01H19/58—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch
    • H01H19/585—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch provided with printed circuit contacts

Definitions

  • the invention relates to a key switch for a motor vehicle, in particular for switching on and off a Passenger airbags, with one inserted into a housing Lock cylinder, the rotor via a front-side driver with a as a rotary switch with a contact bridge trained actuator for acting on fixed contacts associated switching contacts is connected, wherein the contact bridge several serving as a switch contacts contact arms having, which serve as fixed contacts contact paths interact.
  • a key switch for switching on and off a passenger airbag of a motor vehicle the one held in a housing lock cylinder comprising a rotor.
  • the key switch is in one Glove compartment of the motor vehicle installed, if necessary the passenger airbag on and off, the Key switch with an ignition key of the motor vehicle is to be operated.
  • the requirement of turning off the passenger airbag is given in particular if one opposes the direction of travel of the motor vehicle oriented child seat transported in a passenger seat, as a Tripping the passenger airbag severely injured in the Child seat to transport child can result.
  • the lock cylinder of the key switch is designed such that the rotor has an eccentrically formed front side Cams, which in a switched-passenger airbag a microswitch applied.
  • the microswitch is arranged vertically on a printed circuit board and the cam actuates the microswitch in the switching position, in which the front passenger airbag is turned on. Due to the usually permanent loading of the microswitch it can lead to a wear-related failure of the same, after which the passenger airbag is switched off.
  • DE 43 07 711 A1 discloses a key switch, the a lock cylinder inserted into a housing with a Rotor includes. At the front of the rotor are two to each other spaced drivers formed between which one Actuator arranged with a peripherally projecting sensing finger is.
  • the sensing finger are the housing side as switching contacts serving contact springs, depending on from the rotational position of the rotor corresponding fixed contacts apply, with the contact springs and the Fixed contacts aligned perpendicular to the axis of the rotor are.
  • GB-A-23 12 787 shows a key switch for a motor vehicle for switching on and off an electrical system with a lock cylinder inserted in a housing, whose Rotor via a front-side driver with an actuating element assigned to the application of fixed contacts Switch contacts.
  • the actuating element is as a rotary switching element formed with a contact bridge, the two as Switching contacts serving contact arms, with contact paths interact.
  • DE-A-43 07 711 discloses an electrical Connection box with a designed as an ignition switch Key switch, the one in a dome-shaped cover guided rotary switch member comprises.
  • the object is achieved in that the Rotary switching element guided in a hood-shaped cover is, with a pointing in the direction of the Drehschaltgliedes Spring arm is provided which the rotary switch member in the Switch positions of the key switch latched.
  • a redundant key switch provided with the one of the number of contact arms corresponding number of current paths opened and closed being able to be both an electrical consumer on and off as well as a safety circuit is connected, the respective switching state of the Consumer, for example, a passenger airbag ensures.
  • the impingement of a contact track Relatively low wear by means of a contact spring.
  • the axially aligned arrangement of the lock cylinder to the Rotary switching element without an additional actuator ensures a compact design of the key switch. Due to the hood-shaped cover is the rotary switch kept as dust-protected as possible.
  • This embodiment represents an important aspect regarding the assembly of the Key switch, because this without the lock cylinder is prefabricated and the ignition key of a motor vehicle suitable locking cylinder during the final assembly of the Motor vehicle is inserted into the housing.
  • the housing with the captive held by the cover rotary switch is relatively easy to handle and the assignment an individual lock cylinder at any time pre-assembly possible.
  • To the user of the key switch To create a tactile shift feeling is the spring arm provided, which the rotary switching member in the switching positions the key switch locked.
  • the with the rotary switch in the switch positions locking spring arm also provides a default setting of one of the switch positions certainly, in which the key switch during its assembly should be located in the vehicle.
  • the Contact tracks are resistance-coded and stand with an on-board electronics in connection.
  • the on-board electronics monitor the Functionality of the contact tracks and the contact tracks associated rungs and also performs queries by the switching state.
  • the on-board electronics can for example, a note about the switching state of the key switch assigned Consumer perceptible for the driver of the motor vehicle display or report an error in the current paths.
  • the Printed circuit board which can be assigned to further components, is relatively inexpensive to manufacture.
  • the cover is mounted on the circuit board and overlaps the lock cylinder facing end side at the edge ring-shaped.
  • the rotary switch member is rotatable held on the circuit board.
  • the rotary switch member on the lock cylinder facing end face two spaced apart raised Stops on which the spring arm of the cover in the corresponding switch positions comes to the plant.
  • the attacks of the rotary switching element lie in its Entformungscardi, which is why a relatively inexpensive tool design given is.
  • the spring arm in the removal direction of the cover, is expediently the spring arm in the area formed of the cover, the rotary switch member annular overlaps.
  • the driver eccentric formed on the front side of the rotor and has a in a substantially rectangular cross-section, which in a corresponding recess of the rotary switch member engages.
  • the circuit board with light emitting diodes for Backlighting of symbols of a housing cover equipped.
  • the housing, the housing cover, the base, the rotary switch member and / or the cover made of plastic.
  • this configuration is a relatively inexpensive Manufactured by injection molding guaranteed.
  • the key switch comprises a housing 1 with a housing cover 2, which protrudes peripherally beyond the housing 1, and a socket 3, which is clipped into the housing 1.
  • a housing cover 2 which protrudes peripherally beyond the housing 1, and a socket 3, which is clipped into the housing 1.
  • a lock cylinder 4 For mounting in a mounting hole that is in cross section essentially rectangular housing 1, which has a lock cylinder 4 holds, on its opposite narrow sides provided with leaf spring arms 5.
  • the lock cylinder 4 has next to tumblers 6 a rotor 7, on the end face a substantially rectangular cross-section driver 8 is formed eccentrically.
  • the driver 8 is in a corresponding recess 22nd a rotary switch member 9 is inserted, wherein the rotary switch member 9 a contact bridge 10 with several as switching contacts serving contact arms 11 is associated with rotation.
  • the contact arms 11 act as a fixed contacts serving resistance-coded Contact tracks 12 running on a circuit board 13 are formed and via terminal contacts 14 with a not shown on-board electronics are connected.
  • the contact arms 11 of the contact bridge 10 of the rotary switching element 9 open and close at a rotation of the rotor 7 of the Locking cylinder 4 simultaneously two circuits for one Consumer, so it is a redundant key switch is.
  • the rotary switch member 9 is in a hood-shaped cover 15, which is mounted on the circuit board 13, wherein the lock cylinder 4 facing end 16 of the rotary switching element 9 edge-ring of the cover 15th is overrun.
  • the cover has a base plate 17, formed on the circuit board 13 cross fixing lugs 18 are.
  • the cover 15 with a in Direction of the rotary switch member 9 facing spring arm 19 provided the rotary switch member 9 in the two at 90 ° to each other shifted switch positions of the key switch to Switching the consumer on and off is locked. in this connection comes the spring arm 19 each having a raised stop 20th on the lock cylinder 4 facing end 16 of the Rotary switching element 9 to the plant.
  • the opposite stops 20 each open with their towards the center the rotary switching element 9 facing end in an annular Survey 21, on which the driver 8 of the rotor 7 of Locking cylinder 4 during assembly of the lock cylinder 4 in the housing 1 in one of the recess 22 of the rotary switch member 9 offset position comes to rest.
  • the equipped with two LEDs 23 circuit board 13 is via two diagonally arranged centering pins 24th the base 3 is centered.
  • terminal contacts 14 has the base 3 notches 25 on each one of the angled Terminal contacts 14 rests.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Switches With Compound Operations (AREA)

Claims (10)

  1. Interrupteur à clé pour un véhicule, en particulier pour la mise en et hors circuit d'un coussin gonflable de passager avant, avec un cylindre de fermeture (4) qui est inséré dans un boítier (1) et dont le rotor (7) est relié par l'intermédiaire d'un moyen d'entraínement frontal (8) à un élément d'actionnement conformé en organe de commutation rotatif (9) avec un pont de contact (10) pour la sollicitation de contacts de commutation associés à des contacts fixes, le pont de contact (10) comportant plusieurs bras de contact (11) qui servent de contacts de commutation et qui coopèrent avec des pistes de contact (12) servant de contacts fixes, caractérisé en ce que l'organe de commutation rotatif (9) est guidé dans un moyen de recouvrement en forme de capot (15) muni d'un bras élastique (19) qui est orienté en direction de l'organe de commutation rotatif (9) et qui encliquète l'organe de commutation rotatif (9) dans les positions de fermeture de l'interrupteur à clé.
  2. Interrupteur à clé selon la revendication 1, caractérisé en ce que les pistes de contact (12) sont à résistances codées et sont connectées à une électronique de bord.
  3. Interrupteur à clé selon la revendication 1 ou 2, caractérisé en ce que les pistes de contact (12) sont réalisées sur une plaque de circuit imprimé (13) associée à un socle (3) du boítier (1).
  4. Interrupteur à clé selon la revendication 1, caractérisé en ce que le moyen de recouvrement (15) est fixé sur la plaque de circuit imprimé (13) et recouvre de manière annulaire, au niveau de son bord, le côté frontal (16) tourné vers le cylindre de fermeture (4).
  5. Interrupteur à clé selon une des revendications 1 à 4, caractérisé en ce que l'organe de commutation rotatif (9) comporte, sur le côté frontal (16) tourné vers le cylindre de fermeture (4), deux butées en relief distantes l'une de l'autre (20), contre lesquelles le bras élastique (19) du moyen de recouvrement (15) vient en contact dans les positions de fermeture correspondantes.
  6. Interrupteur à clé selon une des revendications 1 à 5, caractérisé en ce que le bras élastique (19) est réalisé dans la zone du moyen de recouvrement (15) qui recouvre l'organe de commutation rotatif (9) de manière annulaire.
  7. Interrupteur à clé selon la revendication 1, caractérisé en ce que le moyen d'entraínement (8) est surmoulé de manière excentrée sur le côté frontal du rotor (7) et présente une section transversale sensiblement rectangulaire qui s'engage dans un évidement correspondant (22) de l'organe de commutation rotatif (9).
  8. Interrupteur à clé selon une des revendications 1 à 7, caractérisé en ce que l'organe de commutation rotatif (9) comporte, dans son centre, une partie annulaire en relief (21), sur laquelle le moyen d'entraínement (8) vient se poser dans une position décalée par rapport à l'évidement (22) lors du montage du cylindre de fermeture (4) dans le boítier (1).
  9. Interrupteur à clé selon une des revendications 3 à 8, caractérisé en ce que la plaque de circuit imprimé (13) est munie de diodes électroluminescentes (23) pour le rétroéclairage de symboles d'un couvercle de boítier (2).
  10. Interrupteur à clé selon une des revendications 1 à 9, caractérisé en ce que le boítier (1), le couvercle de boítier (2), le socle (3), l'organe de commutation rotatif (9) et/ou le moyen de recouvrement (15) sont fabriqués en matière plastique.
EP02764550A 2001-08-24 2002-08-16 Interrupteur a cle pour un vehicule automobile Expired - Lifetime EP1419513B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10141579A DE10141579A1 (de) 2001-08-24 2001-08-24 Schlüsselschalter für ein Kraftfahrzeug
DE10141579 2001-08-24
PCT/DE2002/002993 WO2003019596A1 (fr) 2001-08-24 2002-08-16 Interrupteur a cle conçu pour un vehicule automobile

Publications (2)

Publication Number Publication Date
EP1419513A1 EP1419513A1 (fr) 2004-05-19
EP1419513B1 true EP1419513B1 (fr) 2005-01-19

Family

ID=7696521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02764550A Expired - Lifetime EP1419513B1 (fr) 2001-08-24 2002-08-16 Interrupteur a cle pour un vehicule automobile

Country Status (4)

Country Link
US (1) US20040201274A1 (fr)
EP (1) EP1419513B1 (fr)
DE (2) DE10141579A1 (fr)
WO (1) WO2003019596A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10319192B3 (de) * 2003-04-29 2004-12-30 Robert Bosch Gmbh Drehschalterbaugruppe, insbesondere für ein elektronisches Kraftfahrzeug-Zündstartschloss
DE10319191A1 (de) * 2003-04-29 2004-11-25 Robert Bosch Gmbh Schleifkontaktanordnung für eine DRehschalterbaugruppe, insbesondere für ein elektronisches Kraftfahrzeug-Zündstartschloss
WO2008002863A2 (fr) * 2006-06-26 2008-01-03 Illinois Tool Works Inc. Ensemble de commutation à double fonction
DE102014114305A1 (de) * 2014-10-01 2016-04-07 Huf Hülsbeck & Fürst Gmbh & Co. Kg Niederstrom-Zündanlassschalter eines Sicherheitssystems eines Fahrzeuges
DE102016003981A1 (de) * 2016-04-01 2017-10-05 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Zündschloss

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3204020A1 (de) * 1982-02-05 1983-08-18 ddm hopt & schuler GmbH & Co KG, 7210 Rottweil Schluesselschalter
US5357142A (en) * 1992-05-19 1994-10-18 Yazaki Corporation Electric connection box with ignition switch
US5544914A (en) * 1994-12-27 1996-08-13 Ford Motor Company Air bag disabler control circuit
US5773774A (en) * 1996-05-02 1998-06-30 Methode Electronics, Inc. Electrical switch with omega shaped return spring
US5866954A (en) * 1996-09-05 1999-02-02 Itt Automotive, Inc. Passenger inflatable restraint control apparatus
US6122944A (en) * 1998-03-24 2000-09-26 Methode Electronics, Inc. Key operated rotary switch for disabling an automobile air bag supplemental restraint system

Also Published As

Publication number Publication date
WO2003019596A1 (fr) 2003-03-06
DE50202068D1 (de) 2005-02-24
DE10141579A1 (de) 2003-03-06
US20040201274A1 (en) 2004-10-14
EP1419513A1 (fr) 2004-05-19

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