CN217864028U - Airbag assembly and vehicle with same - Google Patents

Abstract

The utility model discloses an air bag component and have its vehicle, vehicle include the seat, and air bag component locates in the seat and the outside edge of neighbouring seat, and air bag component includes: the seat comprises a first air bag, a second air bag and a gas generating device, wherein the second air bag is arranged on the outer side of the first air bag, the gas generating device is arranged outside the first air bag and the second air bag, the gas generating device is respectively communicated with the first air bag and the second air bag, and after the gas generating device is triggered, the first air bag and the second air bag are unfolded towards the front side of the seat. According to the utility model discloses an air bag subassembly can promote the inboard motion of driver and crew towards the second air pocket with the increase distance between driver and crew and the collision position to make driver and crew can keep in safe gesture and position, and then can reduce the vehicle collision and to driver's influence in order to guarantee driver's safety, do benefit to the safety protection performance who promotes air bag subassembly.

Description

Airbag assembly and vehicle with same

Technical Field

The utility model belongs to the technical field of the vehicle part technique and specifically relates to an airbag module and have its vehicle is related to.

Background

With the rapid development of the vehicle industry and the continuous popularization of vehicles, the safety of vehicle driving has gradually become the primary consideration factor when people buy vehicles, wherein, the safety airbag is taken as an important protection means, and the safety protection directly influences the personal safety of drivers and passengers when the vehicles bear collision, but the airbag in the related technology can only buffer impact, can not adjust the postures of the drivers and passengers, and has poor protection performance.

SUMMERY OF THE UTILITY MODEL

The utility model provides an air bag component, air bag component can promote driver and crew in safe gesture and position when the vehicle collision, has the advantage that barrier propterty is high.

The utility model also provides a vehicle of having above-mentioned air bag component.

According to the utility model discloses airbag assembly for the vehicle, the vehicle includes the seat, airbag assembly locates in the seat and near the outside edge of seat, airbag assembly includes: a first air bag; the second air bag is arranged at the outer side of the first air bag; the gas generating device is arranged outside the first air bag and the second air bag and is respectively communicated with the first air bag and the second air bag, and after the gas generating device is triggered, the first air bag and the second air bag are unfolded towards the front side of the seat.

According to the utility model discloses the gasbag subassembly, the outside of first air pocket is located to the second air pocket, after gas generating device triggers, the second air pocket can block better when driver and crew and collision position between, first air pocket can promote the distance between driver and crew and the collision position with the increase of the inboard motion of driver and crew towards the second air pocket, thereby make driver and crew can keep in safe gesture and position, and then can reduce the influence of vehicle collision to driver in order to guarantee driver's safety, do benefit to the safety protection performance who promotes the gasbag subassembly.

According to some embodiments of the present invention, in the inflated and expanded state, the second air bag increases in length in the front-rear direction in a direction from the upper and lower ends of the second air bag toward the center position.

According to some embodiments of the present invention, in the inflated and deployed state, the upper and lower ends of the first and second air bags are flush; and/or, in the inflation and expansion state, the front end of the second air bag protrudes out of the front end of the first air bag.

According to some embodiments of the invention, the first air bag is deployed in a direction from back to front, towards a direction deviating from the second air bag.

According to some embodiments of the invention, the gas generating device comprises: an air guide bag having a first air outlet in communication with the first air bag and a second air outlet in communication with the second air bag; the gas generator is arranged in the gas guide bag.

According to some embodiments of the invention, in the inflated deployed state, the volume of the second air bag is greater than the volume of the first air bag, and the flow area of the second air outlet is greater than the flow area of the first air outlet.

According to some embodiments of the invention, the seat comprises: a cushion; the air bag module is arranged in the backrest and close to the outer edge of the backrest, and in an inflated and unfolded state, the heights of the first air bag and the second air bag are lower than the upper end of the backrest.

According to some embodiments of the invention, the airbag module further comprises: the mounting bracket, the mounting bracket be suitable for with the skeleton of back is connected and is close to the outside edge of back, the mounting bracket has first installation department and second installation department, the second installation department is located the front end of first installation department just extends towards the outside of seat, and in the state of accomodating, first air pocket and gas generator all locates the inboard of first installation department, at least part of second air pocket is located the front side of second installation department.

According to some embodiments of the utility model, the skeleton of back includes first supporting part and second supporting part, and the second supporting part is connected and moves towards with the rear end of first supporting part the inboard of seat is extended, first installation department is located the inboard of first supporting part, first gas pocket is located first installation department with the contained angle position department of second supporting part.

According to the utility model discloses vehicle, include: the airbag module described above.

According to the utility model discloses the vehicle, the outside of first air pocket is located to the second air pocket, after gas generator triggers, the second air pocket can block better when driving and passengers and collision position between, first air pocket can promote the inboard motion of driving and passengers towards the second air pocket in order to increase the distance between driving and passengers and the collision position, thereby make driving and passengers can keep gesture and the position safe, and then can reduce the influence of vehicle collision to navigating mate in order to guarantee navigating mate's safety, do benefit to the safety protection performance who promotes the gasbag subassembly.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic structural view of an airbag module according to an embodiment of the present invention;

FIG. 2 is a schematic view of a first air bag, a second air bag and a seat of an airbag assembly according to an embodiment of the present invention;

FIG. 3 is a schematic view of a gas generating apparatus, a first gas bag and a second gas bag of an airbag module according to an embodiment of the invention;

figure 4 is a partial cross-sectional view of an airbag assembly and seat according to an embodiment of the present invention.

Reference numerals:

an airbag module 100;

a first air bag 1;

a second air bag 2;

a gas generating device 3; an air guide bag 31; a first air outlet 311; a second air outlet 312; a gas generator 32;

a mounting bracket 4; a first mounting portion 41; a second mounting portion 42;

a seat 200; a seat cushion 210; a backrest 220; a skeleton 230; the first support portion 231; the second supporting portion 232.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present disclosure may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

An airbag module 100 according to an embodiment of the present invention is described below with reference to the drawings.

As shown in fig. 1 to 4, an airbag module 100 according to an embodiment of the present invention is applied to a vehicle including a seat 200, and the airbag module 100 is disposed in the seat 200 and adjacent to an outer edge of the seat 200. That is to say, in the storage state, the airbag module 100 is disposed inside the seat 200, so that the installation space occupied by the airbag module 100 can be saved, the layout is reasonable, and the seat 200 has a good protection effect on the airbag module 100, so as to ensure that the airbag module 100 can be ejected stably and reliably when the vehicle is collided, so as to protect the driver and passengers. Here, the outer side herein refers to a side of the seat 200 facing the outside of the vehicle in the left-right direction, for example, when the seat 200 is a main driving seat, the outer side edge of the seat 200 refers to the left side edge of the main driving seat, that is, the airbag module 100 on the main driving seat is disposed on the right side of the left side edge of the seat 200 and is disposed adjacent to the left side edge of the seat 200; and when the seat 200 is a front passenger seat, the outside edge of the seat 200 refers to the right side edge of the front passenger seat, i.e., the airbag module 100 in the front passenger seat is disposed to the left of the right side edge of the seat 200 and adjacent to the right side edge of the seat 200. Therefore, when the airbag module 100 is ejected after triggering, it is adjacent to the outer side edge of the seat 200, for example, when the side of the vehicle is collided, the airbag module 100 is ejected and positioned between the occupant and the collision position, so that the impact of the vehicle from the side of the occupant can be buffered by the airbag module 100, and the injury of the vehicle collision to the occupant can be reduced, thereby ensuring the safety of the occupant.

Wherein, the airbag module 100 includes: a first airbag 1, a second airbag 2 and a gas generating device 3. Specifically, the second airbag 2 is disposed outside the first airbag 1, the gas generating device 3 is disposed outside the first airbag 1 and the second airbag 2, the gas generating device 3 is respectively communicated with the first airbag 1 and the second airbag 2, and after the gas generating device 3 is triggered, both the first airbag 1 and the second airbag 2 are deployed toward the front side of the seat 200. That is, after the gas generating device 3 is triggered, if the gas generating device 3 is triggered after the vehicle is collided, the gas generating device 3 respectively fills gas into the first gas bag 1 and the second gas bag 2, the first gas bag 1 and the second gas bag 2 are inflated and then are unfolded forwards, because the second gas bag 2 is positioned outside the first gas bag 1, when the vehicle is collided laterally, the second gas bag 2 can better block the impact between the collision position and the driver and the impact generated inwards by the buffer vehicle body structure, the first gas bag 1 is positioned inside the second gas bag 2, namely, the first gas bag 1 is positioned on one side of the second gas bag 2 facing the driver, therefore, in the process of unfolding the first gas bag 1, the first gas bag 1 can better push the driver to move towards the direction far away from the second gas bag 2, so that the distance between the driver and the collision position can be better increased, so that the driver can be kept in a safe posture and position, thereby reducing the influence on the driver to ensure the safety of the driver, and being beneficial to improving the safety airbag module 100 of the driver. Further, the first air bag 1 is located between the second air bag 2 and the occupant, so that the first air bag 1 can again cushion the impact caused by the vehicle collision to further reduce the injury of the occupant by the impact.

For example, when the left B-pillar of the vehicle is deformed toward the driving space due to collision, the gas generating device 3 of the main driving seat is triggered and inflates the first gas bag 1 and the second gas bag 2, the second gas bag 2 is inflated and expanded toward the front side and then is blocked at the left side of the driver, so as to buffer the impact of the collision of the B-pillar and block the inward deformation of the B-pillar, and in the process of inflating and expanding the first gas bag 1 toward the front side, the driver is pushed to move toward the right side, namely, the driver is pushed to be far away from the second gas bag 2, so that the distance between the collision position of the driver and the B-pillar can be well increased, and the influence of the vehicle collision on the driver can be reduced to ensure the safety of the driver.

Wherein, gas generator 3 can inflate in first air pocket 1 and the second air pocket 2 simultaneously for first air pocket 1 and second air pocket 2 can expand fast in step, thereby can shorten gasbag subassembly 100's the time of popping open betterly, in order to guarantee that gasbag subassembly 100 can react fast and protect driver and crew, do benefit to the safety protection performance who promotes gasbag subassembly 100.

According to the utility model discloses gasbag subassembly 100, first gasbag 1's the outside is located to second gasbag 2, after gas generator 3 triggers, second gasbag 2 can block better between driver and crew member and collision position in, first gasbag 1 can promote driver and crew member towards the inboard motion of second gasbag 2 with the distance between increase driver and crew member and the collision position, thereby make driver and crew member can keep in safe gesture and position, and then can reduce the influence of vehicle collision to driver member and be in order to guarantee driver's safety, do benefit to the safety protection performance who promotes gasbag subassembly 100.

According to some embodiments of the present invention, in the inflated and deployed state, the length of the second air bag 2 in the front-rear direction increases in the direction from the upper and lower ends of the second air bag 2 toward the center position. The center position here refers to the center position of the second bag 2 in the up-down direction. That is, after the second bag 2 is fully inflated and deployed, the length of the center position of the second bag 2 in the front-rear direction is greater than the length of both ends of the second bag 2 in the front-rear direction, so that the coverage area of the center position of the second bag 2 on the side of the occupant can be increased, wherein it can be understood that the chest region of the occupant is opposite to the center position of the second bag 2, and thus, by increasing the coverage area of the center position of the second bag 2, the protection effect of the airbag module 100 on the chest region of the occupant can be enhanced, which is beneficial to improving the protection performance of the airbag module 100.

According to some optional embodiments of the present invention, in the inflated and deployed state, the upper and lower ends of the first and second air bags 1 and 2 are flush. That is to say, after the airbag module 100 is completely popped open, that is, after the first airbag 1 and the second airbag 2 are fully deployed by inflation, the upper end of the first airbag 1 is flush with the upper end of the second airbag 2, and the lower end of the first airbag 1 is flush with the lower end of the second airbag 2, so that in the up-down direction, both the first airbag 1 and the second airbag 2 can better cover the side surface of the driver and the crew, while it is ensured that the second airbag 2 can cover the side surface of the driver and the crew in the up-down direction, the coverage area of the first airbag 1 in the up-down direction can be better increased, the contact area of the first airbag 1 and the driver and the crew can be better increased, the pushing effect of the first airbag 1 on the driver and the crew can be improved, and it is ensured that the first airbag 1 can more quickly push the driver to a safe posture and position in the deployment process.

According to some alternative embodiments of the present invention, in the inflated and deployed state, the front end of the second air bag 2 protrudes out of the front end of the first air bag 1. That is, after the first bag 1 and the second bag 2 are fully inflated and deployed, the front end of the second bag 2 is positioned on the front side of the first bag 1. Therefore, the coverage area of the second air bag 2 on the side face of the driver and the passenger can be better increased in the front-rear direction, the range of the second air bag 2 for blocking the driver and the passenger from contacting the collision position can be increased, and the protection effect of the second air bag 2 is further improved. In addition, the front end of the first air bag 1 is positioned at the rear side of the front end of the second air bag 2, so that the first air bag 1 can push a driver to be in a safe posture and position, meanwhile, the first air bag 1 is prevented from being ejected forwards for a long distance to cause impact damage to the driver, and the layout is reasonable.

According to some embodiments of the present invention, the first air bag 1 is deployed in a direction away from the second air bag 2 in a direction from the rear to the front. That is, when the gas generating device 3 is activated, the first air bag 1 is deployed toward the inside of the seat 200, i.e., toward the occupant, in the direction from the rear to the front. From this, can increase the distance that first air pocket 1 promoted driver and crew's motion betterly to can further increase the distance between driver and crew and the collision position, promptly, can promote driver and crew to the position farther apart from the collision area through first air pocket 1, thereby make driver and crew can be in safe gesture, position in order to guarantee driver and crew's safety.

According to some embodiments of the present invention, the gas generating device 3 comprises: the gas guide bag 31 has a first gas outlet 311 communicating with the first gas bag 1 and a second gas outlet 312 communicating with the second gas bag 2, and the gas generator 32 is provided in the gas guide bag 31. That is, when the gas generator 3 is activated, the gas generator 32 can discharge a large amount of gas out of the gas bag 31, the gas in the gas bag 31 can enter the second gas bag 2 through the second gas outlet 312 so that the second gas bag 2 can be rapidly deployed forward to be blocked between the side of the occupant and the collision position, and at the same time, the gas in the gas bag 31 also enters the first gas bag 1 through the first gas outlet 311 so that the first gas bag 1 can be rapidly deployed forward and push the occupant to a safe posture and position to ensure the safety of the occupant.

Further, in the inflated and deployed state, the volume of the second airbag 2 is larger than the volume of the first airbag 1. That is, the second air bag 2 can hold a larger amount of gas than the first air bag 1, so that the second air bag 2 can have a larger cushion area and a better cushion effect. The flow area of the second air outlet 312 is larger than the flow area of the first air outlet 311. That is, the amount of gas entering the second gas pouch 2 through the second gas outlet 312 is greater than the amount of gas entering the first gas pouch 1 through the first gas outlet 311 per unit time. Therefore, the synchronous unfolding of the first air bag 1 and the second air bag 2 can be well ensured, so that the time for the air bag module 100 to be completely popped open can be well shortened, namely, the response speed of the air bag module 100 can be well shortened to improve the protection performance of the air bag module 100.

According to some embodiments of the present invention, the seat 200 comprises: a seat cushion 210 and a backrest 220, the backrest 220 being connected to the rear end of the seat cushion 210. That is, an occupant may sit on the seat cushion 210 and the back of the occupant may rest on the backrest 220, wherein the airbag module 100 is disposed within the backrest 220 and adjacent to the outer side edge of the backrest 220, e.g., when the seat 200 is a primary driving seat, the outer side edge of the backrest 220 refers to the left side edge of the backrest 220, i.e., the airbag module 100 on the primary driving seat is mounted to the right of the left side edge of the backrest 220 and adjacent to the left side edge of the backrest 220; when the seat 200 is a passenger seat, the outer side edge of the backrest 220 refers to the right side edge of the backrest 220, that is, the airbag module 100 in the passenger seat is installed on the left side of the right side edge of the backrest 220 and adjacent to the right side edge of the backrest 220, so that when the airbag module 100 is ejected after triggering, the airbag module 100 is adjacent to the outer side edge of the backrest 220, for example, when a side of a vehicle is collided, the airbag module 100 is at least located between the upper body of an occupant and a collision position after being ejected, and thus the impact of the collision on the upper body of the occupant can be reduced by the airbag module 100 to ensure the safety of the occupant.

Wherein, in the inflated and unfolded state, the heights of the first air bag 1 and the second air bag 2 are lower than the upper end of the backrest 220. That is, after the first and second airbags 1 and 2 are fully inflated and deployed, the first and second airbags 1 and 2 are located at the lower side of the upper end of the backrest 220. Therefore, the interference that the upper ends of the first air bag 1 and the second air bag 2 extend out of the upper end of the backrest 220 can be well avoided while the protection performance of the air bag module 100 for drivers and passengers is ensured, so that the first air bag 1 and the second air bag 2 can be rapidly ejected. For example, in a specific example, the head airbag is installed above the backrest 220, and the head airbag is located on the upper side of the backrest 220 after being inflated and deployed to protect the head of the occupant, so that interference between the airbag module 100 when it is ejected and the head airbag when it is ejected can be well prevented, and it is ensured that both the airbag module 100 and the head airbag can be stably and reliably ejected to further ensure the safety of the occupant.

Further, the airbag module 100 further includes a mounting bracket 4, the mounting bracket 4 is adapted to be connected to the frame 230 of the backrest 220 and adjacent to the outer edge of the backrest 220, the mounting bracket 4 has a first mounting portion 41 and a second mounting portion 42, the second mounting portion 42 is disposed at the front end of the first mounting portion 41 and extends toward the outer side of the seat 200, for example, the mounting bracket 4 in the main driving seat is mounted on the frame 230 adjacent to the left edge of the main driving seat, the front end of the first mounting portion 41 is connected to the right end of the second mounting portion 42, an included angle is formed between the first mounting portion 41 and the second mounting portion 42, and the included angle between the first mounting portion 41 and the second mounting portion 42 is located at the left side of the first mounting portion 41 and at the rear side of the second mounting portion 42. In the stored state, the first bag 1 and the gas generator 3 are both disposed inside the first mounting portion 41, and at least a portion of the second bag 2 is disposed on the front side of the second mounting portion 42.

That is, the first mounting portion 41 is located on the outer side of the first airbag 1, and the second mounting portion 42 is located on the rear side of at least a portion of the second airbag 2, so that when the gas generator 3 is activated to inflate the first airbag 1 and the second airbag 2, the first mounting portion 41 can better support the first airbag 1 from the outer side, so that the first airbag 1 is deployed toward the inner side of the first mounting portion 41 under the urging force of the first mounting portion 41, thereby ensuring that the first airbag 1 can urge the occupant to move in a direction away from the first mounting portion 41 in the process of deployment, that is, increasing the distance between the occupant and the collision position, so as to ensure that the occupant is in a safe posture and position. While the second airbag 2 can be supported well from the rear side by the second mounting portion 42 during deployment of the second airbag 2, so that the second airbag 2 deploys toward the front and is blocked between the occupant and the collision position under urging of the reaction force of the second mounting portion 42 to reliably cushion the impact of the collision on the occupant. Therefore, the mounting support 4 can be used for better reducing the mounting and adapting difficulty of the first air bag 1, the second air bag 2 and the gas generating device 3, and can better provide the reaction force for unfolding the first air bag 1 and the second air bag 2 so as to ensure that the first air bag 1 and the second air bag 2 can be unfolded towards the preset direction, thereby being beneficial to improving the protection performance of the air bag module 100. In addition, the first air bag 1 and the second air bag 2 can be prevented from interfering with each other during the process of being unfolded, so that the speed and reliability of the airbag module 100 can be ensured.

Further, the frame 230 of the backrest 220 includes a first support 231 and a second support 232, the second support 232 is connected to a rear end of the first support 231 and extends toward an inner side of the seat 200, and the first mounting portion 41 is disposed at the inner side of the first support 231. For example, the mounting bracket 4 is mounted on the left side of the frame 230 of the main driving seat, the rear end of the first supporting portion 231 is connected to the left end of the second supporting portion 232, the first supporting portion 231 and the second supporting portion 232 have an included angle, the included angle position of the first supporting portion 231 and the second supporting portion 232 is located on the right side of the first supporting portion 231 and on the front side of the second supporting portion 232, and the first mounting portion 41 is fixed on the inner side wall of the first supporting portion 231.

Further, the first bag 1 is disposed at an included angle between the first mounting portion 41 and the second supporting portion 232. That is, the first airbag 1 is located inside the first mounting portion 41 and in front of the second supporting portion 232, so that when the first airbag 1 is inflated after the gas generator 3 is triggered, the first mounting portion 41 can better support the first airbag 1 from the outside, and the second supporting portion 232 can better support the first airbag 1 from the rear, so that the first airbag 1 can be deployed toward the inside of the mounting bracket 4 in the direction from the rear to the front under the reaction force provided by the first mounting portion 41 and the second supporting portion 232, and thus, the distance that the first airbag 1 pushes the occupant to move can be better increased, so that the distance between the occupant and the collision position can be better increased, and the occupant can be in a safe posture and position to ensure the safety of the occupant.

A vehicle according to an embodiment of the present invention is described below with reference to the drawings.

According to the utility model discloses vehicle, include: an airbag module 100.

According to the utility model discloses the vehicle, the outside of first air pocket 1 is located to second air pocket 2, after gas generating device 3 triggers, second air pocket 2 can block better when driving and crew and collision position, first air pocket 1 can promote driving and crew towards the inboard motion of second air pocket 2 with the distance between increase driving and crew and the collision position, thereby make driving and crew can keep in safe gesture and position, and then can reduce the influence of vehicle collision to navigating mate in order to guarantee navigating mate's safety, do benefit to the safety protection performance who promotes gasbag subassembly 100.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An airbag assembly for a vehicle, the vehicle including a seat, the airbag assembly being disposed within the seat adjacent an outboard edge of the seat, the airbag assembly comprising:

a first air bag;

the second air bag is arranged on the outer side of the first air bag;

the gas generating device is arranged outside the first air bag and the second air bag, the gas generating device is communicated with the first air bag and the second air bag respectively, and after the gas generating device is triggered, the first air bag and the second air bag are unfolded towards the front side of the seat.

2. The airbag module according to claim 1, wherein in the inflated and deployed state, a length of the second bag in the front-rear direction increases in a direction from upper and lower ends of the second bag toward a center position.

3. The airbag assembly of claim 1, wherein in an inflated deployed state, the first and second airbags have upper and lower ends that are flush; and/or, in the inflation and expansion state, the front end of the second air bag protrudes out of the front end of the first air bag.

4. The airbag assembly of claim 1, wherein the first airbag deploys in a direction from back to front, away from the second airbag.

5. The airbag assembly of claim 1, wherein the gas generating device comprises:

an air guide bag having a first air outlet in communication with the first air bag and a second air outlet in communication with the second air bag;

the gas generator is arranged in the gas guide bag.

6. The airbag assembly of claim 5, wherein in the inflated and deployed state, the volume of the second airbag is greater than the volume of the first airbag, and the flow area of the second outlet opening is greater than the flow area of the first outlet opening.

7. The airbag assembly of claim 1, wherein the seat comprises:

a cushion;

the backrest is connected with the rear end of the seat cushion, the airbag assembly is arranged in the backrest and is adjacent to the outer edge of the backrest, and in an inflated and unfolded state, the heights of the first air bag and the second air bag are lower than the upper end of the backrest.

8. The airbag assembly of claim 7, further comprising: the mounting bracket, the mounting bracket be suitable for with the skeleton of back is connected and is close to the outside edge of back, the mounting bracket has first installation department and second installation department, the second installation department is located the front end of first installation department just extends towards the outside of seat, and in the state of accomodating, first air pocket and gas generator all locates the inboard of first installation department, at least part of second air pocket is located the front side of second installation department.

9. The airbag assembly of claim 8, wherein the frame of the backrest comprises a first support portion and a second support portion, the second support portion is connected to the rear end of the first support portion and extends toward the inner side of the seat, the first mounting portion is disposed on the inner side of the first support portion, and the first airbag is disposed at an included angle between the first mounting portion and the second support portion.

10. A vehicle, characterized by comprising: the airbag assembly of any of claims 1-9.

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