CN218021528U

CN218021528U - Airbag structure and vehicle

Info

Publication number: CN218021528U
Application number: CN202221120525.5U
Authority: CN
Inventors: 张晗
Original assignee: Weilai Automobile Technology Anhui Co Ltd
Current assignee: Weilai Automobile Technology Anhui Co Ltd
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-12-13
Anticipated expiration: 2032-05-11

Abstract

The utility model provides an air bag structure and vehicle, this air bag structure include the gasbag subassembly with be used for with the installing frame on the vehicle plaque is fixed to the gasbag subassembly, wherein, the gasbag subassembly has the bag and is used for carrying out gas generator aerifyd to the bag, the body of installing frame encloses into the installing frame export and is in be provided with the bag that can tear on the vehicle plaque and the corresponding region of installing frame export and pop out the region, wherein, the air bag structure still has the infantees structure, the infantees structure is fixed installing frame department and having the body by the installing frame under the assembled state and extending the first hem that is outstanding to in the installing frame export, in the inflation process of bag, first hem passes through gas pressure orientation in the bag the vehicle plaque overturns. Through setting up the infantees structure, according to the utility model discloses an air bag structure can be protected the bag in order to avoid scraping at the bag pop out the in-process.

Description

Airbag structure and vehicle

Technical Field

The utility model relates to an air bag structure and vehicle that has such air bag structure.

Background

As an important component for passive safety of vehicles, airbag systems are generally constructed as a frontal impact airbag arranged in front of the driver, in particular on the steering wheel, or as a side airbag arranged to the side of the driver or other passenger. For example, the airbag module can be arranged on the dashboard of a motor vehicle, the weakened region on the dashboard being torn open during the inflation process by the action of the gas pressure in the airbag (which may be referred to simply as the gas pressure in the airbag) and forming an ejection opening for ejecting the airbag. The weakened area of the instrument panel here has a weakening line in the form of a line groove (also referred to as a tear edge) in order to be able to break at a necessary point in time for the pouch to pop out.

During ejection of the pouch, the pouch may be scratched and thereby impede the build-up of pressure within the pouch due to the rough edges and spikes that may be present at the tear edge, which is dangerous for the vehicle occupant. This is more common, for example, in side airbags, which are designed to be larger in size to meet the requirements of small offset crashes and which have less space available for the ejection of the airbag on account of their arrangement in the seat.

SUMMERY OF THE UTILITY MODEL

According to the aspect of difference, the utility model aims to provide an improvement air bag structure and vehicle, wherein, this air bag structure can realize the better protection to the bag at the bag pops out the in-process.

Furthermore, the present invention also aims to solve or alleviate other technical problems existing in the prior art.

The utility model discloses a solve above-mentioned problem with airbag structure, particularly, it includes including the gasbag subassembly with be used for with the installing frame that the gasbag subassembly was fixed on the vehicle plaque, wherein, the gasbag subassembly has the bag and is used for carrying out gas generator inflated to the bag, the body of installing frame encloses into the installing frame export and is in be provided with the bag pop-up region that can tear on the vehicle plaque with the corresponding region in installing frame export, wherein, the airbag structure still has the infantees structure, the infantees structure is fixed installing frame department and have the first hem that extends to be outstanding in the installing frame export by the body of installing frame under the assembled state, in the inflation process of bag, first hem passes through gas pressure in the bag is towards the vehicle overturns.

According to an aspect of the present invention, there is provided an airbag structure, wherein the bag ejection area includes a first edge and a second edge, wherein the second edge is configured as a weakening line and is torn by gas pressure in the bag during inflation for forming a bag ejection opening through which the bag can pass.

According to the utility model discloses an aspect proposed air bag structure, the quantity of the first hem of infantees structure with the quantity of the regional second edge of bag pop out equals, and at the inflation in-process, the gas pressure orientation in the bag is passed through to first hem the vehicle plaque overturns and covers the second edge.

According to the utility model discloses an aspect proposed air bag structure, the quantity of the first hem of infantees structure with the bag pops out regional first edge and the sum of second edge and equals, and at the inflation in-process, the gas pressure orientation in the bag is passed through to first hem the vehicle plaque overturns and covers simultaneously first edge with the second edge.

According to an aspect of the present invention, there is provided an airbag structure, in which the wrapping cloth structure is fixed to the mounting frame by means of a bracket, wherein the wrapping cloth structure is fixed to the bracket.

According to the utility model discloses an aspect proposed air bag structure, the infantees structure still has and is used for fixing second hem on the support, the second hem is pasted on the support.

According to an aspect of the present invention, there is provided an airbag structure in which a door is provided at an installation frame, the door includes a first edge of the door and a second edge of the door, wherein the first edge of the door is connected to the body of the installation frame in a hinged manner, and the second edge of the door is configured as a weakening line and passes through the gas pressure in the bag during inflation to cause tearing for forming an outlet through which the bag passes.

According to an aspect of the present invention, there is provided an airbag structure, wherein the first edge of the door cover is connected to the body of the mounting frame by means of a fabric hinge, wherein the fabric hinge is embedded in the door cover and between the bodies of the mounting frame.

According to an aspect of the present invention, an airbag structure is provided, which can be disposed at a vehicle instrument panel.

Through setting up the infantees structure, according to the utility model discloses an air bag structure can be protected in order to avoid scraping the bag at the bag pop-up in-process.

According to another aspect of the present invention, there is provided a vehicle having the airbag structure explained above and having the advantages explained above, which will not be described in detail.

Drawings

The above and other features of the present invention will become apparent with reference to the accompanying drawings, in which,

figure 1 shows an exploded view of an airbag structure according to the invention;

FIG. 2 shows a schematic view of a drape structure from the airbag structure of FIG. 1;

fig. 3 shows a partial view of the airbag structure from fig. 1 from the underside;

fig. 4 shows a sectional view of the airbag structure in the assembled state.

Detailed Description

It is easily understood that, according to the technical solution of the present invention, a plurality of alternative structural modes and implementation modes can be proposed by those skilled in the art without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present invention, and should not be considered as limiting or restricting the technical solutions of the present invention in their entirety or in any other way.

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms. Furthermore, the terms "first," "second," "third," and the like, are used for descriptive and distinguishing purposes only and are not to be construed as indicating or implying relative importance of the respective components.

Referring to fig. 1, which shows an airbag structure 100 according to an embodiment of the present invention and also shows an instrument panel 200 serving as a carrier of the airbag structure 100 in order to clearly show the relative positional relationship of its components, the airbag structure 100 includes an airbag module 110 and a mounting frame 120 for fixing the airbag module 110 at the instrument panel. The airbag assembly 110 comprises a bladder 111 and a gas generator (not visible in the drawings) for inflating the bladder 111 during inflation and thereby promoting the build-up of gas pressure within the bladder. In fig. 1, the pouch 111 is in a folded state, and the mounting frame 120 is not visible due to its fitting to the inside of the instrument panel 200 (see fig. 3 in particular). For the sake of clarity, other elements of the airbag structure, such as the controller and possibly the sensors, are not specifically illustrated in the drawings.

It should be noted that the airbag structure is not necessarily fixed to the vehicle dashboard, but can also be arranged as a side airbag at the seat or at the vehicle body adjacent to the seat. The part of the vehicle for fastening the airbag arrangement is here summarized as a vehicle trim on which a pocket ejection area is provided, from which the pocket can be ejected. Reference can be made to the description relating to the instrument panel for the vehicle trim panel and its pocket ejection area.

In the central region of the mounting frame 120, a mounting frame outlet 122 is provided, which is bounded by the body 121 (also referred to as wall) of the mounting frame, and in accordance therewith, a pocket ejection region is provided in the region of the instrument panel which corresponds to the mounting frame outlet 122 in the assembled state, through which mounting frame outlet 122 and pocket ejection region the pocket is released in succession during inflation. Here, the pouch ejection area of the instrument panel 200 can be configured in the type of a weakened area with a plurality of weakening lines which are tearable or tearable relatively early under the effect of the expanding pouch 111 and thereby form a pouch ejection opening through which the pouch can pass. That is, the non-weakened edge of the pocket pop-up area is referred to as the first edge, and in contrast, the edge that is tearable due to the weakening is referred to as the second edge. The weakening line can be realized in such a way that the material thickness is reduced, or the weakening line can be constructed in a simple manner as a cutting line for weakening the strength.

For example, the pocket ejection area of the instrument panel 200 is provided in a rectangular shape, four sides of which are each configured as a weakening line and correspondingly the pocket ejection area has four second edges. Alternatively, only three sides of the pocket ejection area are configured as weakening lines and accordingly the pocket ejection area has three second edges and a first edge in order to prevent the pocket ejection area from flying off and thereby causing secondary injuries to the vehicle occupant when the pocket 111 is ejected.

It should be noted that the pocket ejection area at the instrument panel (i.e., the vehicle trim panel for securing the airbag structure) is not limited to the form described above, but may be configured in any other manner. For example, a weakening line is provided in the center thereof and is likewise configured as a weakening line at the edge intersecting the weakening line, and the two remaining edges serve to form the first edge of the pocket ejection area, which can tear in a door-like manner and thereby form the pocket ejection opening.

The airbag structure 100 according to the present invention further has a wrapping structure 130 fixed at the mounting frame 120 and used for protecting the bag 111 in the inflation process, so as to prevent it from being scratched. Alternatively, the drape structure can be made of PA66 material. In particular, with reference to fig. 2 and 4, the wrapping structure has a first flap 131 that can freely swing and a second flap 132 for fixing at the mounting frame, wherein the first flap 131 extends from the body 121 of the mounting frame in the assembled state to protrude into the mounting frame outlet 122, i.e. the first flap 131 covers a portion of the mounting frame outlet 122. When the airbag structure 100 inflates the pouch 111 in response to a vehicle collision, the first folded edge 131 is pressed and turned toward the instrument panel 200 of the vehicle by the gas pressure (i.e., the in-pouch gas pressure) in the pouch 111 located below the mounting frame 120 (particularly, below the drape structure), in such a manner as to cover the edge of the pouch ejecting area at the instrument panel. That is, by providing the drape structure, the ejection area of the pouch after the pouch is torn during inflation and/or burrs, sharp corners, or protrusions of the outlet of the mounting frame, which will be described later, can be effectively prevented from being scratched. This is particularly advantageous when the size of the pocket is large and may also enable a reduction in the size of the ejection area of the pocket.

Alternatively, the clothing structure 130 can be fastened directly to the mounting frame 120, in particular, the clothing structure 130 can be fastened to the body 121 of the mounting frame with its second flange 132 angled (in particular at right angles) to the first flange 131. For example, the second flange is fixed at the body 121 by means of screws, or the second flange 132 is fixed at the body 121 by means of an adhesive. Of course, the wrapping structure can also be directly fixed at the wall portion of the mounting frame with the first folding edge 131 in case the fixing strength is satisfactory.

Alternatively, the clothing structure 130 can be fastened to the mounting frame 120 by means of special brackets 133, as shown in the figures, wherein the clothing structure 130 can be covered by its second flange 132 and fastened to the brackets 133, which are screwed to the mounting frame 120 by means of screws. The second fold 132 can be fixed to the support 133 by means of an adhesive.

The cloth packing structure 130 has a plurality of cloth packing strips (three cloth packing strips in the drawing) which are integrally connected to each other. The plurality of strips may be separately configured and adjacent strips partially overlap for ensuring coverage of the torn pocket ejection area. Each strip has a first fold 131 and a second fold 132, wherein the number of first folds 131 may be equal to the number of second edges in the pocket ejection area, i.e. the wrapping structure 130 only covers the second edges where a burr or bulge may occur during inflation. For example, in the embodiment described above with three second edges and one first edge, the clothing structure accordingly has three clothing strips and three first folds.

Alternatively, the drape structure 130 can cover all edges of the torn pocket pop-up area during pocket pop-up, i.e. the number of first flaps 131 can be equal to the sum of the second and first edges of the pocket pop-up area. In this way the sachet is better protected against scratching.

It should be noted that the cover structure is not limited to the above-described embodiments, but can be configured to match the shape of the ejection area of the pocket and the arrangement of the second edge thereof. Furthermore, the above description of the number of first folds should not be understood as limiting, but merely as an indication of the relationship of the drape structure to the second edge of the pocket ejection area. For example, when the pocket ejection area is circular, the first fold can likewise be configured or enclose a circle or a partial circle corresponding to its second edge.

Optionally, the mounting frame 120 of the airbag arrangement itself also has a (not visible in the drawing) door flap which is located between the mounting frame body 121 and the instrument panel 200 and can likewise be configured in the form of a weakened region. The door cover comprises a weakened door cover second edge and an un-weakened door cover first edge, wherein the door cover first edge is hinged with the body of the mounting frame. During inflation, this second edge of the door is torn by the bladder 111 and thus forms an outlet through which the bladder 111 can pass, while during this process the first edge of the door, due to its hinged connection to the body 121 of the bezel, restrains the tear at the body 121 of the bezel, so as not to fly out of the instrument panel and cause secondary injury to the passengers. Further, the manufacturing process of the instrument panel can be simplified by providing the door cover at the mounting frame 120, and for example, modification of a production mold of the vehicle instrument panel due to the ejection process of the airbag structure can be omitted.

Alternatively, the first edge of the door cover is hingedly connected to the body 121 of the mounting frame by means of a mechanical hinge, or the first edge of the door cover is hingedly connected to the body 121 of the mounting frame by means of a fabric hinge 123, wherein the fabric hinge 123 is embedded between the door cover and the body 121 of the mounting frame. The fabric hinge 123 is made up of multiple fabric pieces having a mesh structure, which can be woven from aramid or high strength yarns. Here, the mesh structure can be in the form of an ellipse, a rectangle, a hexagon, or a circle. During inflation, the fabric hinge 123 is stretched by the compression of the bladder 111 and thereby restrains the door (particularly the torn weakened region thereof) so that the torn door does not fly out of the instrument panel 200.

Furthermore, in view of the possibility of burrs or projections also being present at the second edge of the door cover, the cloth cover 130 can optionally also be designed to be adapted to the door cover in order to cover the second edge of the door cover during ejection of the pocket 111.

Finally, the invention also relates to a vehicle having such an airbag structure, wherein the airbag structure can be arranged as a main airbag at the vehicle instrument panel or as a side airbag at the seat or at the body adjacent to the seat. According to the utility model discloses a description of vehicle can correspondingly refer to above about according to the utility model discloses an airbag structure's description, no longer gives details to this.

It should be understood that all of the above preferred embodiments are exemplary and not restrictive, and that various modifications and changes in the specific embodiments described above, which may occur to those skilled in the art upon reading the teachings of the present invention, are intended to be within the scope of the appended claims.

Claims

1. An airbag structure, comprising an airbag module and a mounting frame for fixing the airbag module to a vehicle trim, wherein the airbag module has a bag and a gas generator for inflating the bag, and a body of the mounting frame encloses a mounting frame outlet and is provided with a bag ejection area which can be torn on a region of the vehicle trim corresponding to the mounting frame outlet, wherein the airbag structure further has a cloth covering structure which is fixed to the mounting frame and has a first flap which extends from the body of the mounting frame in an assembled state and projects into the mounting frame outlet, the first flap being turned toward the vehicle trim by a bag gas pressure during inflation of the bag.

2. The airbag structure of claim 1, wherein the bladder ejection area comprises a first edge and a second edge, wherein the second edge is configured as a line of weakness and tears during inflation by gas pressure within the bladder for forming a bladder ejection port through which the bladder may pass.

3. The airbag structure of claim 2, wherein the number of first flaps of the drape structure is equal to the number of second edges of the pocket pop-up area, the first flaps being turned toward the vehicle trim panel and covering the second edges by the pressure of the gas inside the pocket during inflation.

4. The airbag structure according to claim 2, wherein the number of the first folded edges of the cover structure is equal to the sum of the first edge and the second edge of the pocket pop-up area, and the first folded edges are turned toward the vehicle trim panel by the in-pocket gas pressure and cover the first edge and the second edge at the same time during inflation.

5. The airbag structure according to any one of claims 1 to 4, characterized in that the cloth coating structure is fixed at the mounting frame by means of a bracket, wherein the cloth coating structure is fixed on the bracket.

6. The airbag structure of claim 5, wherein the cloth covering structure further has a second folded edge for fixing to the bracket, the second folded edge being adhered to the bracket.

7. The airbag structure according to any one of claims 1 to 4, characterized in that a door cover is provided at the mounting frame, the door cover including a door cover first edge and a door cover second edge, wherein the door cover first edge is hingedly connected to the body of the mounting frame, and the door cover second edge is configured as a weakening line and is torn by the gas pressure in the bag during inflation for forming an outlet through which the bag can pass.

8. The airbag structure of claim 7, wherein the door cover first edge is hingedly connected to the body of the mounting frame by a fabric hinge, wherein the fabric hinge is embedded between the door cover and the body of the mounting frame.

9. The airbag structure according to any one of claims 1 to 4, characterized in that the airbag structure is arranged at a vehicle instrument panel.

10. A vehicle characterized by having an airbag structure according to any one of claims 1 to 9.