WO2017092546A1 - 安全气囊壳体以及安全气囊组件 - Google Patents

安全气囊壳体以及安全气囊组件 Download PDF

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Publication number
WO2017092546A1
WO2017092546A1 PCT/CN2016/104853 CN2016104853W WO2017092546A1 WO 2017092546 A1 WO2017092546 A1 WO 2017092546A1 CN 2016104853 W CN2016104853 W CN 2016104853W WO 2017092546 A1 WO2017092546 A1 WO 2017092546A1
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WO
WIPO (PCT)
Prior art keywords
airbag
bottom wall
airbag housing
opening
side wall
Prior art date
Application number
PCT/CN2016/104853
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English (en)
French (fr)
Inventor
安晓超
袁鹏
彭斌斌
Original Assignee
奥托立夫开发公司
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.)
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Publication date
Application filed by 奥托立夫开发公司 filed Critical 奥托立夫开发公司
Priority to EP16869856.1A priority Critical patent/EP3385128B1/en
Priority to US15/772,185 priority patent/US10696262B2/en
Publication of WO2017092546A1 publication Critical patent/WO2017092546A1/zh

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    • 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
    • B60R21/205—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in dashboards
    • 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
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • 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

Definitions

  • the utility model relates to a car airbag, in particular to an airbag shell and an airbag module having the above airbag shell.
  • the airbag shell includes two kinds of metal shells and plastic shells.
  • the metal shells are generally welded by steel plates or pressed by metal.
  • the advantages are high strength, certain ductility, deformation, and good energy absorption.
  • the disadvantage is that the weight is heavy.
  • the plastic casing is generally formed by one-time injection molding process. The advantage is that the processing process is simple, and the failure caused by the additional connection structure is solved.
  • the disadvantage is that the strength is low, the deformation amount is small, and a thick wall thickness and a large amount are required. Reinforce the ribs to compensate for the lack of strength.
  • the above two housings for airbags have a weight of about 500 g and a plastic housing of about 400 g.
  • the materials of the two housings are relatively expensive and also have a large weight. In the motor vehicle industry, reducing the cost of materials for motor vehicle components and also reducing the weight of motor vehicle components is becoming increasingly urgent.
  • the utility model provides an airbag housing, comprising: a bottom wall; a side wall, and a cavity formed by the bottom wall for accommodating a safety air bag; wherein at least a part of the side wall is formed as a double layer structure .
  • the side wall of the double-layer structure is realized by forming a hole in the side wall, and the wall thickness of each of the side walls of the double-layer structure is smaller than the wall thickness of the side wall of the single-layer structure, so that the structure of the airbag housing Get optimized.
  • the solution can reduce the defects during the molding after the molding, and improve the processing technology.
  • At least a portion of the airbag housing is formed with an opening.
  • Providing an opening in the airbag housing ensures that it further reduces the weight of the airbag housing while meeting the strength requirements.
  • the opening includes a first opening extending from the bottom wall to at least a portion of the side wall connected to the bottom wall.
  • the bottom wall is formed with an interface for aligning with an inflation port of the airbag, the airbag is crimped to a peripheral area of the interface, and the airbag is crimped to the bottom wall.
  • a joint region of the bottom wall, the first opening extending from an outer edge of the joint region in a longitudinal direction of the airbag housing to at least a portion of the side wall.
  • the opening includes a second opening extending from the interface along a lateral direction of the bottom wall to at least a portion of the side wall.
  • the airbag housing further includes a reinforcing structure extending from the bottom wall to the side wall.
  • the length of the bottom wall connected to the side wall on the side where the second opening is formed is greater than the length of the bottom wall connected to the side wall on the opposite side on which the second opening side is formed.
  • the height of the side wall on the side on which the second opening is formed is smaller than the height of the side wall on the opposite side on which the second opening side is formed.
  • the utility model also provides an airbag assembly, comprising: a gas generator; a safety air bag; a pressure ring; and an airbag housing, the airbag housing comprising: a bottom wall; a side wall, and the bottom wall Forming a cavity for accommodating a safety air bag; wherein at least a portion of the side wall is formed in a two-layer structure, the safety air bag is crimped by the pressure ring in a cavity of the airbag housing, and An air inlet of the airbag is aligned with an interface on the bottom wall, the gas generator is located outside the cavity, the airbag, the pressure ring, the airbag housing, and the gas are generated The devices are secured together to inflate the airbag through the gas generator.
  • FIG. 1 is a perspective view showing one embodiment of an airbag housing in accordance with the present invention.
  • Fig. 2 is a cross-sectional view showing A-A of Fig. 1.
  • FIG. 3 is a top plan view showing one embodiment of an airbag housing in accordance with the present invention.
  • FIG. 4 is a front elevational view showing one embodiment of an airbag housing in accordance with the present invention.
  • FIG. 5 is a left side view showing one embodiment of an airbag housing according to the present invention.
  • the airbag housing 100 includes a bottom wall 10 and side walls 20, and the bottom wall 10 and the side walls 20 are formed with a cavity for receiving a safety air bag.
  • the bottom wall 10 is formed with an interface 11 for aligning with the inflation port of the airbag and four fixing holes 12 connected to the airbag, the gas generator and the like (the other two fixing holes 12 are not shown in FIG. Out).
  • the airbag housing 100 is formed as a two-layer structure on the side wall 20, and the two-layer structure is realized by forming the holes 21 in the side walls 20, and the thickness of each of the side walls 20 of the two-layer structure is smaller than that of the single layer.
  • the wall thickness of the side walls of the structure optimizes the structure of the airbag housing 100.
  • the solution can reduce the defects during the molding after the molding, and improve the processing technology.
  • the hole 21 formed in a double layer structure on the side wall 20 may be a through hole that penetrates the side wall 20 in the height direction of the side wall 20.
  • the hole 21 formed in the double-layer structure on the side wall 20 may be a blind hole, and the blind hole extends along the height direction of the side wall 20 but does not penetrate.
  • the blind hole is arranged to be less difficult to draw than the through hole. The processability of the sidewall 20 is improved.
  • FIG. 2 is a view of FIG. A cross-sectional view of A-A.
  • the two-layer structure of the side wall 20 is realized by forming a pair of oppositely extending blind holes 22 in the height direction of the side wall 20, the pair of oppositely extending blind holes 22 extending from the opposite faces of the side wall 20 along the same axis but Not through. More preferably, the blind holes 22 that face and extend coaxially can be provided with pairs on the side wall 20.
  • the shape of the hole 21 provided on the side wall 20 and formed into a two-layer structure may be arbitrarily set, and may be, for example, a circular hole, a waist hole or other anisotropy hole or the like.
  • the blind holes 22 arranged in pairs may also be misaligned and do not share the same axis.
  • FIG. 3 is a top plan view showing one embodiment of an airbag housing in accordance with the present invention.
  • the opening may be provided as a first opening 30 formed in the airbag housing 100, the first opening 30 extending from the bottom wall 10 to the side wall 20.
  • the bottom wall 10 is formed with an interface 11 for aligning with the inflation port of the airbag, and the airbag is crimped by the pressure ring in the cavity of the airbag housing 100 and located at the interface.
  • the peripheral region of the 11 is fixed by the fixing hole 12, and the region where the airbag is pressed against the bottom wall 10 is the joint region of the bottom wall 10.
  • the first opening 30 extends from the outer edge of the joint region in the longitudinal direction of the airbag housing 100 (y direction in FIG. 1) to the side wall 20 and forms two first openings 30 that are symmetrical along the lateral center line of the bottom wall 10. .
  • the opening may also be provided as a second opening 40 formed in the airbag housing 100, the second opening 40 being from the interface 11 in the lateral direction of the bottom wall 10 (x direction in FIG. 1) ) extends to the side wall 20 and the interface 11 is in communication with the second opening 40.
  • the opening includes the two first openings 30 and the second opening 40 described above, and the combination of the two first openings 30 and the second opening 40 is removed from the airbag housing 100. More materials, better weight loss.
  • the opening is limited to the above-mentioned position and shape, and those skilled in the art can apply various force acts on the airbag housing 100 during the airbag bursting process.
  • the size of the opening selects the position, shape and size of the opening.
  • connection of the components, preferably the airbag housing 100, further includes a side wall 10 extending to the side The reinforcing structure of the wall 20.
  • the reinforcing structure is a rib 50 formed on the bottom wall 10 and the side wall 20, and the rib 50 extends from the surface of the bottom wall 10 to the surface of the side wall 20.
  • the rib 50 can be integrally formed with the bottom wall 10 and the side wall 20 by an injection molding process. More preferably, the outer wall and the inner surface of the bottom wall 10 and the side wall 20 are each formed with a plurality of ribs 50, and the plurality of ribs 50 are distributed in parallel in the longitudinal direction of the airbag housing 100 to ensure uniform strength.
  • the rib 50 may be a U-shaped rib, an I-shaped rib or a C-shaped rib, etc., and the height and thickness of the rib 50 are relatively uniform.
  • the reinforcing structure may be a reinforcing bracket or the like provided between the bottom wall 10 and the side wall 20.
  • the joint strength of the bottom wall 10 can also be enhanced by increasing the joint area of the bottom wall 10 and the side wall 20.
  • the bottom wall 10 is divided into two parts on the side on which the second opening 40 is formed, and the connection lengths to the side wall 20 are L1 and L2, respectively, and during the airbag bursting process, The side of the bottom wall 10 where the second opening 40 is provided is subjected to a large load.
  • the length of the bottom wall 10 connected to the side wall 20 on the side where the second opening is formed is larger than the side of the bottom wall 10 on the side where the second opening side is formed and the side wall 20 The length of the connection.
  • FIG. 4 is a view showing A front view of one embodiment of an airbag housing of the utility model.
  • FIG. 5 is a left side view showing one embodiment of an airbag housing according to the present invention.
  • the side wall 20 thus disposed generates a height difference on the opposite side where the second opening side is formed and the second opening side is formed, thereby controlling the height of the side wall 20 formed on the second opening side, reducing the airbag case The risk of deformation or breakage of the body 100 here.
  • the airbag housing 100 provided by the present invention is further provided with other weight reducing structures. As shown in FIG. 1 , a weight reducing hole 60 is further formed between the adjacent two ribs 50, and the weight reducing hole 60 is provided with a convexity. The opposite side walls 20 of the rib 50 are distributed along the longitudinal direction of the airbag housing 100. In addition, a plurality of weight reducing grooves 70 are formed on the bottom wall 10, and the weight reducing grooves 70 cover the inner surface and the outer surface of the bottom wall 10, in order to reduce the thickness of the bottom wall 10 to save the casing material.
  • the present invention also provides an airbag assembly including: a gas generator; a safety air bag; a pressure ring; and an airbag housing 100, the airbag housing 100 including: a bottom wall 10 and a side wall 20, The bottom wall 10 and the side wall 20 are formed with a cavity for accommodating a safety air bag, and the side wall 20 is formed in a double-layer structure, and the safety air bag is crimped by the pressure ring in the cavity of the airbag case 100, and the airbag is secured.
  • the gas inlet is aligned with the interface 11 on the bottom wall 10, the gas generator is located outside the cavity, and the safety air bag, the pressure ring, the airbag housing 100 and the gas generator are fixed together to pass the gas generator Inflated in the airbag.

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

Abstract

一种安全气囊壳体（100）以及具有上述安全气囊壳体的安全气囊组件，其中安全气囊壳体包括：底壁（10）；侧壁（20），与所述底壁形成用于容纳安全气袋的腔体；其中，所述侧壁的至少一部分形成为双层结构。该安全气囊壳体使壳体结构得到优化，并可减少壳体成型后出模时的缺陷，提高了加工工艺性。

Description

安全气囊壳体以及安全气囊组件 技术领域
本实用新型涉及汽车安全气囊，具体涉及安全气囊壳体以及具有上述安全气囊壳体的安全气囊组件。
背景技术
目前在多数机动车辆中都配备有安全气囊，以副驾驶员侧的安全气囊为例。安全气囊的壳体包括金属壳体和塑料壳体两种，金属壳体一般通过钢板焊接而成或通过金属压制而成，优点是强度高，具有一定的延展性，可变形，吸能效果好；缺点是重量重。塑料壳体一般通过注塑工艺一次加工成型，优点是加工工艺简单，解决了可能因额外的连接结构引起的失效；缺点是强度较低，可变形量小，而且需要较厚的壁厚和大量的加强筋来弥补强度上的不足。
上述两种用于安全气囊的壳体，金属壳体的重量约为500g，塑料壳体的重量约为400g，两种壳体的材料成本相对昂贵并且还具有较大的重量。在机动车辆行业，降低机动车辆部件的用料成本并且还减轻机动车辆部件的重量日趋紧迫。
实用新型内容
本实用新型提供了一种安全气囊壳体的创新结构，可使得安全气囊壳体的结构得到优化。同时，对于利用模具加工成型的安全气囊壳体，可减少成型后出模时的缺陷，提高其加工工艺性。本实用新型的另一目的在于提供具有上述安全气囊壳体的安全气囊组件。
本实用新型提供了一种安全气囊壳体，包括：底壁；侧壁，与所述底壁形成用于容纳安全气袋的腔体；其中，所述侧壁的至少一部分形成为双层结构。
双层结构的侧壁通过在侧壁内形成孔而实现，该双层结构的侧壁中的每一层的壁厚均小于单层结构的侧壁的壁厚，使安全气囊壳体的结构得到优化。同时，对于利用模具加工成型的安全气囊壳体，该方案可减少成型后出模时的缺陷，提高其加工工艺性。
优选的，所述安全气囊壳体的至少一部分形成有开口。
在安全气囊壳体上设置开口，可确保其在满足强度要求的同时进一步降低安全气囊壳体的重量。
优选的，所述开口包括第一开口，所述第一开口从所述底壁延伸到与所述底壁相连接的所述侧壁的至少一部分。
优选的，所述底壁形成有用于与安全气袋的充气口对准的接口，安全气袋被压接在所述接口的外围区域，所述安全气袋与所述底壁压接的区域为所述底壁的接合区域，所述第一开口从所述接合区域的外边缘沿所述安全气囊壳体的纵向延伸至所述侧壁的至少一部分。
优选的，所述开口包括第二开口，所述第二开口从所述接口沿所述底壁的横向延伸到所述侧壁的至少一部分。
优选的，所述安全气囊壳体还包括从所述底壁延伸至所述侧壁的加强结构。
优选的，所述底壁在形成有所述第二开口侧与所述侧壁连接的长度大于所述底壁在形成有所述第二开口侧的相对侧与所述侧壁连接的长度。
优选的，所述侧壁在形成有所述第二开口侧的高度小于所述侧壁在形成有所述第二开口侧的相对侧的高度。
本实用新型还提供了一种安全气囊组件，包括：气体发生器；安全气袋；压环；以及安全气囊壳体，所述安全气囊壳体包括：底壁；侧壁，与所述底壁形成有用于容纳安全气袋的腔体；其中，所述侧壁的至少一部分形成为双层结构，所述安全气袋被所述压环压接在所述安全气囊壳体的腔体内，且所述安全气袋的充气口与所述底壁上的接口对准，所述气体发生器位于所述腔体的外侧，所述安全气袋、压环、安全气囊壳体和所述气体发生器被固定在一起，以通过所述气体发生器向所述安全气袋内充气。
附图说明
下面将参考附图来描述本实用新型示例性实施例的特征、优点和技术效果。在附图中，相同的符号标示相同的元件，其中：
图1是示出根据本实用新型的安全气囊壳体的一个实施例的立体图。
图2是示出图1中A-A的剖面图。
图3是示出根据本实用新型的安全气囊壳体的一个实施例的俯视图。
图4是示出根据本实用新型的安全气囊壳体的一个实施例的主视图。
图5是示出根据本实用新型的安全气囊壳体的一个实施例的左视图。
具体实施方式
下文中，参照附图描述本实用新型的实施例。下面的详细描述和附图用于示例性地说明本实用新型的原理，本实用新型不限于所描述的优选实施例，本实用新型的范围由权利要求书限定。
图1是示出根据本实用新型的安全气囊壳体的一个实施例的立体图。如图1所示，安全气囊壳体100包括底壁10和侧壁20，底壁10与侧壁20形成有用于容纳安全气袋的腔体。底壁10上形成有用于与安全气袋的充气口对准的接口11和与安全气袋、气体发生器等部件连接的四个固定孔12(另外两个固定孔12未在图1中示出)。
安全气囊壳体100在侧壁20上形成为双层结构，双层结构通过在侧壁20内形成孔21而实现，该双层结构的侧壁20中每一层的壁厚均小于单层结构的侧壁的壁厚，使得安全气囊壳体100的结构得到优化。同时，对于利用模具加工成型的安全气囊壳体100，该方案可减小其成型后出模时的缺陷，提高其加工工艺性。
根据一个实施例，在侧壁20上形成为双层结构的孔21可以是通孔，通孔沿侧壁20的高度方向将侧壁20贯通。
可替换地，在侧壁20上形成为双层结构的孔21可以盲孔，盲孔沿侧壁20的高度方向延伸但不贯通，盲孔的设置较通孔相比，可降低拔模难度，改善侧壁20的加工工艺性。
根据本实用新型的一个优选实施例，如图2所示，图2是示出图1中 A-A的剖面图。侧壁20的双层结构是通过在侧壁20的高度方向上形成一对相向延伸的盲孔22实现，该对相向延伸的盲孔22从侧壁20的两相对面沿相同的轴线延伸但不贯通。更优地，相向且同轴延伸的盲孔22可在侧壁20上设有多对。
此外，需要说明，设置在侧壁20上并使其形成为双层结构的孔21的形状可以任意设置，例如可以是圆孔，也可以是腰型孔或其他异性孔等。同时，成对设置的盲孔22也可以错位排列，不共用相同的轴线。
本实用新型提供的安全气囊壳体100，还将安全气囊壳体100的局部掏空形成开口以减轻重量。根据一个实施例，如图3所示，图3是示出根据本实用新型的安全气囊壳体的一个实施例的俯视图。开口可设置为形成在安全气囊壳体100上的第一开口30，第一开口30从底壁10延伸至与侧壁20。具体的，如图3所示，底壁10上形成有用于与安全气袋的充气口对准的接口11，且安全气袋被压环压接在安全气囊壳体100的腔体内并位于接口11的外围区域，并通过固定孔12固定，安全气袋与底壁10压接的区域为底壁10的接合区域。第一开口30从接合区域的外边缘沿安全气囊壳体100的纵向(图1中的y方向)延伸至侧壁20并形成沿着底壁10的横向中心线对称的两个第一开口30。
根据一个实施例，如图3所示，开口还可设置为形成在安全气囊壳体100上的第二开口40，第二开口40从接口11沿底壁10的横向(图1中的x方向)延伸到侧壁20，且接口11与第二开口40连通。
根据本实用新型的一个优选实施例，开口包括上述的两个第一开口30和第二开口40，两个第一开口30和第二开口40两者的组合设置除去了安全气囊壳体100上更多的材料，减重效果更好。
图3中虽然示出了开口的位置和形状，但不应理解为开口仅限于上述的位置和形状，本领域技术人员可根据安全气囊点爆过程中作用于安全气囊壳体100的各部分力的大小选择开口设置的位置、形状和尺寸。
安全气囊壳体100被两个第一开口30和第二开口40掏空后，底壁10上余留材料较少，考虑底壁10需要与安全气囊组件中的气体发生器、安全气袋等部件的连接，优选安全气囊壳体100还包括从底壁10延伸至侧 壁20的加强结构。
根据本实用新型的一个优选实施例，如图1所示，加强结构为形成于底壁10和侧壁20上的凸肋50，凸肋50从底壁10的表面延伸至侧壁20的表面以加强底壁10与侧壁20之间的连接强度。对于塑料壳体而言，凸肋50可与底壁10和侧壁20通过注塑工艺一体地形成。更优地，底壁10和侧壁20的外表面和内表面均形成有多个凸肋50，且多个凸肋50沿安全气囊壳体100的纵向平行分布以保证强度均匀。凸肋50可以是U形凸肋、I形凸肋或C形凸肋等，且凸肋50的高度和厚度保持相对一致。
此外，加强结构还可以是设置在底壁10和侧壁20之间的加强支架等。
进一步地，底壁10的连接强度还可通过增加底壁10和侧壁20的连接面积得到加强。具体地，如图3所示，底壁10在形成有第二开口40的一侧被分割为两部分，与侧壁20的连接长度分别为L1和L2，且在安全气囊点爆过程中，底壁10设有第二开口40的一侧承受较大载荷。为了增加底壁10在第二开口侧的强度，优选设置底壁10在形成有第二开口侧与侧壁20连接的长度大于底壁10在形成有第二开口侧的相对侧与侧壁20连接的长度。
此外，还可以设置成侧壁20在形成有第二开口侧的高度小于侧壁20在形成有第二开口侧的相对侧的高度，如图4～5所示，图4是示出根据本实用新型的安全气囊壳体的一个实施例的主视图。图5是示出根据本实用新型的安全气囊壳体的一个实施例的左视图。如此设置的侧壁20在形成有第二开口侧和形成有第二开口侧的相对侧产生高度差，以此控制在形成有第二开口侧的侧壁20的高度，减小了安全气囊壳体100在此处发生变形或断裂的风险。
本实用新型提供的安全气囊壳体100，还设置有其他减重结构，如图1所示，在相邻两凸肋50之间还形成有减重孔60，减重孔60在设有凸肋50的两相对侧壁20上沿安全气囊壳体100的纵向分布。此外，在底壁10上还形成有多个减重槽70，减重槽70布满底壁10的内表面和外表面，旨在减薄底壁10的厚度以节约壳体用料。
本实用新型还提供了一种安全气囊组件，安全气囊组件包括：气体发生器；安全气袋；压环；以及安全气囊壳体100，安全气囊壳体100包括：底壁10和侧壁20，底壁10和侧壁20形成有用于容纳安全气袋的腔体，侧壁20上形成为双层结构，安全气袋被压环压接在安全气囊壳体100的腔体内，且安全气袋的充气口与底壁10上的接口11对准，气体发生器位于腔体的外侧，安全气袋、压环、安全气囊壳体100和气体发生器被固定在一起，以通过气体发生器向安全气袋内充气。
尽管已经参考示例性实施例描述了本实用新型，但是应理解，本实用新型并不限于上述实施例的构造和方法。相反，本实用新型意在覆盖各种修改例和等同配置。另外，尽管在各种示例性结合体和构造中示出了所公开实用新型的各种元件和方法步骤，但是包括更多、更少的元件或方法的其它组合也落在本实用新型的范围之内。

Claims (9)

  1. 一种安全气囊壳体，包括：
    底壁；
    侧壁，与所述底壁形成用于容纳安全气袋的腔体；
    其中，所述侧壁的至少一部分形成为双层结构。
  2. 根据权利要求1所述的安全气囊壳体，其中所述安全气囊壳体的至少一部分形成有开口。
  3. 根据权利要求2所述的安全气囊壳体，其中所述开口包括第一开口，所述第一开口从所述底壁延伸到与所述底壁相连接的所述侧壁的至少一部分。
  4. 根据权利要求3所述的安全气囊壳体，其中所述底壁形成有用于与安全气袋的充气口对准的接口，安全气袋被压接在所述接口的外围区域，所述安全气袋与所述底壁压接的区域为所述底壁的接合区域，所述第一开口从所述接合区域的外边缘沿所述安全气囊壳体的纵向延伸至所述侧壁的至少一部分。
  5. 根据权利要求4所述的安全气囊壳体，其中所述开口包括第二开口，所述第二开口从所述接口沿所述底壁的横向延伸到所述侧壁的至少一部分。
  6. 根据权利要求1所述的安全气囊壳体，其中所述安全气囊壳体还包括从所述底壁延伸至所述侧壁的加强结构。
  7. 根据权利要求5所述的安全气囊壳体，其中所述底壁在形成有所述第二开口侧与所述侧壁连接的长度大于所述底壁在形成有所述第二开口 侧的相对侧与所述侧壁连接的长度。
  8. 根据权利要求5所述的安全气囊壳体，其中所述侧壁在形成有所述第二开口侧的高度小于所述侧壁在形成有所述第二开口侧的相对侧的高度。
  9. 一种安全气囊组件，包括：
    气体发生器；
    安全气袋；
    压环；
    以及
    根据权利要求1-8任一项所述的安全气囊壳体，所述安全气囊壳体包括：
    底壁；
    侧壁，与所述底壁形成用于有容纳安全气袋的腔体；
    其中，所述侧壁的至少一部分形成为双层结构，
    所述安全气袋被所述压环压接在所述安全气囊壳体的腔体内，且所述安全气袋的充气口与所述底壁上的接口对准，所述气体发生器位于所述腔体的外侧，所述安全气袋、压环、安全气囊壳体和所述气体发生器被固定在一起，以通过所述气体发生器向所述安全气袋内充气。
PCT/CN2016/104853 2015-12-03 2016-11-07 安全气囊壳体以及安全气囊组件 WO2017092546A1 (zh)

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