WO2008023022A1 - Pièce permettant de connecter un micro-générateur de gaz à un moyen de déclenchement - Google Patents

Pièce permettant de connecter un micro-générateur de gaz à un moyen de déclenchement Download PDF

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Publication number
WO2008023022A1
WO2008023022A1 PCT/EP2007/058688 EP2007058688W WO2008023022A1 WO 2008023022 A1 WO2008023022 A1 WO 2008023022A1 EP 2007058688 W EP2007058688 W EP 2007058688W WO 2008023022 A1 WO2008023022 A1 WO 2008023022A1
Authority
WO
WIPO (PCT)
Prior art keywords
generator
pins
micro
fact
electrically
Prior art date
Application number
PCT/EP2007/058688
Other languages
English (en)
Inventor
Rémi PADEL
Guénolé Queffurus
Arnaud Dufour
Original Assignee
Autoliv Development Ab
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 Autoliv Development Ab filed Critical Autoliv Development Ab
Publication of WO2008023022A1 publication Critical patent/WO2008023022A1/fr

Links

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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/64—Means for preventing incorrect coupling
    • H01R13/645—Means for preventing incorrect coupling by exchangeable elements on case or base
    • H01R13/6456—Means for preventing incorrect coupling by exchangeable elements on case or base comprising keying elements at different positions along the periphery of the connector
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
    • B60R21/2644—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R2021/26029—Ignitors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/707—Structural association with built-in electrical component with built-in switch interlocked with contact members or counterpart

Definitions

  • the present invention relates to a part for connecting a gas micro-generator for a motor vehicle safety device to means for initiating this micro-generator.
  • such a pretensioner is mounted at the end of a belt loop, and in the vicinity of the chassis of the vehicle.
  • the operator has very little space to connect the gas micro-generator to the means which, according to information delivered by an impact detector, will cause its initiation. They are usually in the extension of one another.
  • Such a micro-generator usually comprises two pins or electrodes which transmit an electric current to the charge contained in the generator, thereby causing its initiation. But the connection of these pins is difficult in terms of space requirement, so the pins are sometimes twisted,
  • connection means that are differentiated for each initiator. Use is therefore made of foolproofing means which prevent any incorrect connection .
  • the present invention aims to solve this problem by proposing an intermediate part which allows the connection of a gas micro-generator to its ignition device, doing so without being hampered by the limited space that is available for the installation, without in any way changing the structure and the operation of the parts currently available, and in total safety.
  • the present invention therefore relates to a connection part for connecting a gas micro-generator for a motor vehicle safety device that has electrically conducting pins connected to an ignition compound, to means for initiating this micro-generator that are also electrically conductive .
  • this part is noteworthy in that it comprises, at one end, female means for receiving said pins of the micro-generator, electrically connected to pins placed at a second end, in order to connect them electrically to the initiator means, the female means and the pins being placed in respective orientations forming between them an angle lying between 45° and 135° , This angle is advantageously of the order of 90° and preferably equal to 90° .
  • connection means since the latter together form an angle lying between the aforementioned two values, and preferably of the order of 90°, In practice, the operator has much more room at his disposal in this direction.
  • the part according to the invention in no way modifies the devices that it is intended to connect since, on the one hand, the pins of the micro-generator are adapted thereto, while its own pins are adapted to the ini tiator device which remains unchanged .
  • this part comprises two branches forming an angle of 90° between them; the pins are identical to and occupy the same disposition as that of the pins of the micro-generator; it comprises a metal casing.
  • Figure 1 is a view in section, along a longitudinal mid-plane of a commercially available gas micro-generator;
  • - Figure 2 is a bottom view of a micro-generator, such as that of Figure 1, connected t.o a connection part according to the invention;
  • Figure 3 is a side view of the assembly of
  • Figure 2; Figure 4 is a view similar to Figure 3 of the aforementioned assembly, with partial cutaway in order to show the mutual connection means .
  • Figure 1 represents a gas micro-generator capable of being used with the connection part according to the invention .
  • This micro-generator (1) comprises a cylindrical initiator support (2) provided with a central bore (20) leading to the end surface of the support (2) and extended by a hollow cylindrical neck (21) whose axis is indistinguishable from the axis of the support (2) referenced X-X'.
  • This initiator body rests on an O-ring placed at the bottom of the neck (21) and is fixedly attached to the initiator support (2) by swaging the free end of the neck (21) on the enlarged paid-portion of the initiator body (3) .
  • Two axial pins or electrodes (30) pass through the initiator body (3) over the whole of its height. Their top ends, not visible, lead into the top portion of the body (3) and are connected together by a pyrotechnic ignition assembly comprising in particular a heating resistor and a pyrotechnic ignition compound.
  • a cylindrical sheath (5) made of fine fragmentable metal is attached by swaging to the top periphery of the initiator support (2) so as to envelope the neck
  • This sheath contains grains of ignition powder (4) .
  • the initiator according to Figure 1 is connected to the part ( ⁇ ) according to the invention. It is a part consisting for example of a metal casing,
  • connection part (6) comprises, at one end, the female means (62) for receiving the pins (30) of the micro- generator (1).
  • These means in the shape of sleeves, are electrically connected to pins (61) placed at a second end of the part for electrically connecting them to initiator means that are not shown here.
  • the female means (62) and the pins (61) are placed in respective orientations that form between them an angle ⁇ of 90° , In embodiments not shown, this angle could be different and lie between 45° and 135°.
  • the value of the angle depends on the direction in which the maximum space is available.
  • this part could have a bent shape consisting of two branches forming an angle of 90° between them.
  • the part (6) forms a rigid unitary assembly, that is to say it is not deformable, its shape being fixed by the respective orientations of the female means and of the pins.
  • the pins (61) that are fitted to the connection part (6) are identical to and occupy the same disposition as that of the pins (30) of the micro- generator (1) .

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Air Bags (AREA)

Abstract

La présente invention concerne une pièce de connexion permettant de connecter un micro-générateur de gaz (1) pour un dispositif de sécurité de véhicule automobile qui présente des broches électriquement conductrices (30) connectées à une composition d'allumage, à un moyen de déclenchement électriquement conducteur permettant de déclencher le micro-générateur. La pièce de connexion est caractérisée par le fait qu'à une extrémité, elle inclut des éléments femelles (62) permettant de loger lesdites broches (30) du micro-générateur (1), lesdits éléments femelles (62) étant électriquement connectés aux broches (61) placées au niveau d'une deuxième extrémité afin de les connecter électriquement audit moyen de déclenchement, lesdits éléments femelles (62) et lesdites broches (61) étant placés dans des orientations respectives formant entre eux un angle situé dans une fourchette allant de 45° à 135°.
PCT/EP2007/058688 2006-08-25 2007-08-21 Pièce permettant de connecter un micro-générateur de gaz à un moyen de déclenchement WO2008023022A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0607506A FR2905096B1 (fr) 2006-08-25 2006-08-25 Piece de connexion d'un microgenerateur de gaz a des moyens d'initiation.
FR06/07506 2006-08-25

Publications (1)

Publication Number Publication Date
WO2008023022A1 true WO2008023022A1 (fr) 2008-02-28

Family

ID=37808136

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/058688 WO2008023022A1 (fr) 2006-08-25 2007-08-21 Pièce permettant de connecter un micro-générateur de gaz à un moyen de déclenchement

Country Status (2)

Country Link
FR (1) FR2905096B1 (fr)
WO (1) WO2008023022A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5658152A (en) * 1995-06-07 1997-08-19 International Business Machines Corporation Three prong swivel plug
EP1117159A2 (fr) * 1999-12-24 2001-07-18 Sumitomo Wiring Systems, Ltd. Connecteur
EP1201512A1 (fr) * 1999-07-12 2002-05-02 Nippon Kayaku Kabushiki Kaisha Generateur de gaz
EP1253680A1 (fr) * 2001-04-26 2002-10-30 J.S.T. Mfg. Co., Ltd. Ensemble de connection électrique comportant un verouillage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5658152A (en) * 1995-06-07 1997-08-19 International Business Machines Corporation Three prong swivel plug
EP1201512A1 (fr) * 1999-07-12 2002-05-02 Nippon Kayaku Kabushiki Kaisha Generateur de gaz
EP1117159A2 (fr) * 1999-12-24 2001-07-18 Sumitomo Wiring Systems, Ltd. Connecteur
EP1253680A1 (fr) * 2001-04-26 2002-10-30 J.S.T. Mfg. Co., Ltd. Ensemble de connection électrique comportant un verouillage

Also Published As

Publication number Publication date
FR2905096A1 (fr) 2008-02-29
FR2905096B1 (fr) 2008-10-17

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