WO2014135292A1 - Module de coussin gonflable de sécurité - Google Patents

Module de coussin gonflable de sécurité Download PDF

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Publication number
WO2014135292A1
WO2014135292A1 PCT/EP2014/050670 EP2014050670W WO2014135292A1 WO 2014135292 A1 WO2014135292 A1 WO 2014135292A1 EP 2014050670 W EP2014050670 W EP 2014050670W WO 2014135292 A1 WO2014135292 A1 WO 2014135292A1
Authority
WO
WIPO (PCT)
Prior art keywords
ribs
housing
airbag
airbag module
rib
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.)
Ceased
Application number
PCT/EP2014/050670
Other languages
German (de)
English (en)
Inventor
Dominique Rozez
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.)
Autoliv Development AB
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
Priority to CN201480009426.1A priority Critical patent/CN105073512B/zh
Publication of WO2014135292A1 publication Critical patent/WO2014135292A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/217—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together
    • 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
    • B60R21/30—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 with means to draw ambient air into the flow line and mix such air with the inflation fluid

Definitions

  • the present invention relates to an airbag module for a vehicle according to the preamble of claim 1 and to a housing for an airbag module according to claim 9.
  • the previously known airbag modules have an airbag housing, in which a gas generator is used with an all-round circumferential mounting flange. When inflated, the gas generator fills an opening in the bottom of the housing. At the same time, the gas bag is clamped between the flange and the housing bottom. Gas generators are also known which generate a high velocity gas stream when ignited. The gas stream is directed to a converging end of a converging / diverging nozzle and then enters the inflatable airbag.
  • the gas generator further comprises ignition means which are operated in the event of a collision to ignite the combustible mixture of gases in the storage chamber as a result of the impact.
  • Object of the present invention is therefore to provide an airbag module for a vehicle with an airbag housing, so that a safe deployment of the airbag is ensured without the high temperatures affect the individual parts of the airbag module negative.
  • the airbag module for a vehicle comprises an airbag or gas bag and an inflator, in particular a gas generator, which are received in a housing with a correspondingly formed housing bottom.
  • the housing bottom is provided with ribs or a rib-like structure, which are arranged such that air flow channels are formed.
  • This simple arrangement according to the invention ensures that the very high temperatures, which not only act on the gas bag, but also in the housing bottom and in particular in the region of the flange of a housing opening or recess in the housing bottom, in which the gas generator is mounted, arise, lowered rapidly can be.
  • the strength of the individual components of the airbag module is thus not impaired.
  • the ribs and / or the rib-like structure are secured to the housing bottom and adjacent to a housing bottom formed on the housing opening or recess.
  • the inflator or gas generator is preferably received completely in the housing opening, which may be formed as a passage opening or as a recess, and the airbag in its folded state at least partially.
  • a preferred embodiment of the present invention provides that the ribs or the rib-like structure, which preferably consists of webs, are distributed around the circumference of the housing opening. In a substantially circular housing opening, these are formed correspondingly curved and follow the circumference of the opening.
  • a preferred embodiment of the invention provides that the housing opening has a mounting flange, which is provided with additional ribs or a rib-like structure, in particular with webs.
  • the webs and the ribs are arranged such that between each two adjacent ribs or webs either a through hole or by overlapping the adjacent ends of the ribs or webs creates a nozzle-shaped opening, so that the ambient air can easily flow through these openings and inside the housing opening can be directed.
  • Due to the fact that the ribs or the webs are preferably partially overlapping and spaced from one another. Arranged, the air flowing between two ribs or webs can be directed in one direction or in the same direction. But it can also be achieved that a turbulence of the air is generated around the passage opening around, so that the warm air is displaced by the ambient air flowing in from the outside of the housing opening.
  • an effective cooling of the flange and the gas generator is effected.
  • a further preferred embodiment of the invention provides that the ribs on the housing bottom and the mounting flange are firmly attached, so that an additional support for the Alrbag or the gas bag is guaranteed in the inflated state. This is particularly important since the stability of the airbag module is substantially increased in comparison with the previously known airbag modules.
  • the housing according to the invention has a housing bottom, on which a housing opening in the form of a recess for receiving an inflator, in particular a gas generator, and at least partially for receiving a gas bag or airbag, which communicates with the gas generator, are attached.
  • the housing opening has a circumferential mounting flange.
  • the housing according to the invention is characterized in that the housing bottom and the mounting flange are or is provided with ribs or a rib-like structure, wherein the ribs or the rib-like structure are arranged such that air flow channels in the interior of the housing and / or in the Caseback arise.
  • the embodiment according to the invention of the housing of an airbag module ensures that, in the case of a nes collision and the subsequent activation of the gas generator, with simple technical means effective cooling of the housing is achieved.
  • the ribs or rib-like structure are shaped and secured to the housing bottom to follow the housing opening, with a portion of the ribs preferably secured to the circumferential mounting flange and cooperating with the ribs attached to the housing bottom to form a common cooling arrangement form.
  • a particularly preferred embodiment of the housing according to the invention provides that the ribs extend mirror-symmetrically about the housing opening, wherein adjacent individual ribs partially overlap, so that between two adjacent ribs a nozzle-like opening and / or a passage opening for the passage of air is formed.
  • This is ambient air or else cooling air, which can be conducted through suitable flow channels of the vehicle's air conditioning system inside the housing.
  • the airbag housing according to the invention is suitable for use in passenger, driver, and any airbag modules, which is a gas generator with very hot gas generation is used.
  • Fig. 1 a perspective view of a detail of an inventive
  • Fig. 2 a perspective view of the gas generator. 1 shows a simplified representation of a detail of an airbag module 10 according to the invention for a vehicle in the region of a housing 12 of the airbag module 10 in plan view according to a preferred embodiment of the present invention.
  • FIG. 1 shows the interior of the housing 12 in a perspective view without a cover.
  • the housing 12 has a housing oden 14, which has a housing opening 16, which is a recess in the housing bottom 14 and in this embodiment is circular.
  • an inflator not shown here, in particular a gas generator, recorded, which communicates with a likewise not shown gas bag or airbag in the installed state.
  • openings 26 are provided for fastening bolts, which are formed adjacent to the housing bottom 14 and the housing opening 16.
  • the openings 26 serve for fastening the gas generator and the gas bag in the housing 12.
  • the housing bottom 14 has ribs 18 which are fastened to the housing bottom 14 and are arranged around the housing opening 16. As can be seen from the figure, the ribs 18 have different lengths and are formed curved.
  • the housing opening 16 in which the gas generator and the associated gas bag or airbag are at least partially attached has a circumferential mounting region 20, which is provided in this embodiment with a shoulder 24.
  • ribs 18 ' are provided, which are fixedly mounted on the mounting flange 20 at its upper edge, so that in a deployed after activation of the gas generator deployment of the airbag, which between the mounting flange 20 and the gas generator in the inserted state - is clamped, the friction is further increased and the airbag can be better kept in the desired position in the inflated state.
  • the ribs 18 which are fastened to the housing bottom 14 and the ribs 18 'which are fastened to the upper edge of the mounting flange 20 of the housing opening 16, are spaced apart or overlapping each other such that air flow channels 22, 22', above which Ambient air sucked in and passed inside the housing 12 in the region of the housing opening 16, arise.
  • the air flow channels 22, 22 ' are dimensioned and distributed such that turbulence of the sucked air can be realized, so that the cold air can be sucked in and the warm air can be transported away from the other channels 22, 22'.
  • each case two adjacent ribs 18, 18 'are arranged in such a way that their ends correspond to one another and are spaced apart from one another, so that a type of through-opening for the air flowing through arises.
  • the ribs 18 attached to the housing bottom 14 around the housing opening 16 are also arranged such that they partially overlap the ribs 18 'attached to the mounting flange 20 so that air flow channels 22' are formed in the form of a nozzle-like opening.
  • the air flow channels 22, 22 ' are arranged such that they cooperate with the grooves 24 formed on the mounting flange 20, so that the air flowing through also enters the grooves 24 and therefore causes additional cooling of the housing 14 in the region of the gas generator.
  • the cooling air is drawn in from the environment in order to achieve rapid cooling of the individual components of the airbag module 10.
  • ribs 18, 18 ' may also be a rib-like structure consisting of individual webs and which cooperates with each other in a similar manner as the ribs 18, attached to the housing bottom 14 and the mounting flange 20 and secured. Another arrangement of the ribs on the housing bottom 14 and / or on the mounting flange 20 is also possible in order to achieve the desired cooling effect.
  • FIG. 2 shows a gas generator 30 which has a mounting flange 32.
  • On the mounting flange 32 four mounting bolts 34 are arranged, via which the gas generator 30 is fixed to the housing bottom 14.
  • the mounting flange 32 is in the mounted state on the ribs 18, 18 ', so that the gas bag, not shown here in the assembled state between the ribs 18, 18' and the mounting flange 32 resting clamped.
  • the ribs 18, 18 ' may be arranged entirely or at least partially on the mounting flange 32.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Air Bags (AREA)

Abstract

La présente invention concerne un module de coussin gonflable de sécurité (10), destiné à un véhicule automobile, qui comporte un boîtier (12), un coussin gonflable ou airbag, et un dispositif de gonflage, en particulier un générateur de gaz. Le boîtier comporte un fond de boîtier (14) destiné à recevoir le coussin gonflable et le dispositif de gonflage raccordé à celui-ci. Le module de coussin gonflable de sécurité de l'invention est caractérisé en ce que le fond du boîtier est pourvu de nervures (18, 18') ou d'une structure similaire à des nervures. Les nervures ou la structure similaire à des nervures sont disposées de manière à former des conduits d'écoulement d'air (22, 22').
PCT/EP2014/050670 2013-03-05 2014-01-15 Module de coussin gonflable de sécurité Ceased WO2014135292A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201480009426.1A CN105073512B (zh) 2013-03-05 2014-01-15 气囊模块

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013003792.1A DE102013003792B4 (de) 2013-03-05 2013-03-05 Airbagmodul
DE102013003792.1 2013-03-05

Publications (1)

Publication Number Publication Date
WO2014135292A1 true WO2014135292A1 (fr) 2014-09-12

Family

ID=50030253

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/050670 Ceased WO2014135292A1 (fr) 2013-03-05 2014-01-15 Module de coussin gonflable de sécurité

Country Status (3)

Country Link
CN (1) CN105073512B (fr)
DE (1) DE102013003792B4 (fr)
WO (1) WO2014135292A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0316556U (fr) * 1989-06-30 1991-02-19
US5207450A (en) * 1991-12-12 1993-05-04 Takata, Inc. Aspirated air cushion restraint system
US5257818A (en) * 1992-09-08 1993-11-02 Trw Vehicle Safety Systems Inc. Apparatus for rapidly changing the temperature of a device in an inflatable restraint system
JP2000255372A (ja) * 1999-03-05 2000-09-19 Mitsubishi Motors Corp エアバッグ装置
DE10340910A1 (de) * 2003-09-05 2005-04-07 Autoliv Development Ab Verfahren zum Betreiben eines Airbagmoduls und Airbagmodul dazu
WO2006050718A1 (fr) * 2004-11-15 2006-05-18 Takata-Petri Ag Module d'airbag a monter dans une automobile
KR100599833B1 (ko) * 2004-11-17 2006-07-13 현대모비스 주식회사 조수석 에어백 모듈의 냉각 시스템
DE102011108795A1 (de) * 2011-07-29 2013-01-31 Autoliv Development Ab Gassackmodul und Verfahren zu seiner Montage

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1159314A (ja) * 1997-08-12 1999-03-02 Daicel Chem Ind Ltd エアバッグ用ガス発生器
WO2001062558A1 (fr) * 2000-02-22 2001-08-30 Daicel Chemical Industries, Ltd. Generateur de gaz pour coussin gonflable de securite, deflecteur, support de dispositif pour refrigerant/filtre, refrigerant et logement
GB2376923B (en) * 2001-06-27 2004-04-28 Autoliv Dev Improvements in or relating to an airbag arrangement
GB2426230A (en) * 2005-05-05 2006-11-22 Ford Global Tech Llc An airbag module with venting means
JP2007223460A (ja) * 2006-02-23 2007-09-06 Takata Corp エアバッグ装置
US7775554B2 (en) * 2007-05-18 2010-08-17 Trw Vehicle Safety Systems Inc. Air bag module vent
JP2009113633A (ja) * 2007-11-06 2009-05-28 Toyoda Gosei Co Ltd エアバッグ装置
DE102007058546B4 (de) * 2007-12-05 2016-11-24 Autoliv Development Ab Frontgassackeinrichtung
DE102008033201A1 (de) * 2008-07-15 2010-01-21 Trw Automotive Safety Systems Gmbh Fahrzeuginsassen-Rückhaltesystem
JP2012071754A (ja) * 2010-09-29 2012-04-12 Toyoda Gosei Co Ltd エアバッグ装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0316556U (fr) * 1989-06-30 1991-02-19
US5207450A (en) * 1991-12-12 1993-05-04 Takata, Inc. Aspirated air cushion restraint system
US5257818A (en) * 1992-09-08 1993-11-02 Trw Vehicle Safety Systems Inc. Apparatus for rapidly changing the temperature of a device in an inflatable restraint system
JP2000255372A (ja) * 1999-03-05 2000-09-19 Mitsubishi Motors Corp エアバッグ装置
DE10340910A1 (de) * 2003-09-05 2005-04-07 Autoliv Development Ab Verfahren zum Betreiben eines Airbagmoduls und Airbagmodul dazu
WO2006050718A1 (fr) * 2004-11-15 2006-05-18 Takata-Petri Ag Module d'airbag a monter dans une automobile
KR100599833B1 (ko) * 2004-11-17 2006-07-13 현대모비스 주식회사 조수석 에어백 모듈의 냉각 시스템
DE102011108795A1 (de) * 2011-07-29 2013-01-31 Autoliv Development Ab Gassackmodul und Verfahren zu seiner Montage

Also Published As

Publication number Publication date
DE102013003792B4 (de) 2017-03-23
DE102013003792A1 (de) 2014-09-11
CN105073512B (zh) 2018-08-10
CN105073512A (zh) 2015-11-18

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