Front safety air bag and vehicle

Abstract

The present application relates to the technical field of vehicle parts, and provides a front safety air bag and a vehicle. The front safety air bag has a length direction. The front safety air bag is provided with a main chamber and an auxiliary chamber, the auxiliary chamber and the main chamber are distributed in the length direction, and the main chamber and the auxiliary chamber are both used for being inflated. When the main chamber is inflated and the auxiliary chamber is not inflated, the front safety air bag is in a normal state, at which time the front safety air bag can meet safety protection requirements when a seat is close to the dashboard. When the main chamber and the auxiliary chamber are both inflated, the front safety air bag is in a lengthened state, at which time the front safety air bag can meet safety protection requirements when the seat is far from the dashboard. In the described front safety air bag, the two chambers are provided, so that, on the basis of the position of the seat, a normal state or a lengthened state can be selected for the front safety air bag to carry out safety protection, meeting protection requirements for passengers when the seat is located at different positions, and therefore reducing potential safety hazards.

Description

Frontal airbag and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese application with application number 202322392545.9 filed with the Chinese Patent Office on September 4, 2023, entitled “A Frontal Airbag and Vehicle”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the technical field of vehicle components, and in particular to a frontal airbag and a vehicle. Background Art

[0004] Vehicles are one of the most important means of transportation at present. In order to ensure the safety of passengers and drivers in the vehicles, it is currently a common practice to install airbags in the vehicles.

[0005] Airbags generally come in three types: frontal airbags located in front of the seat, side airbags located to the side of the seat, and roof airbags located on the roof of the vehicle. Frontal airbags are further divided into driver airbags (DABs) and passenger airbags (PABs). With increasing demands for passenger comfort, the sliding distance of passenger seats has increased. The inventors have discovered that current PABs struggle to simultaneously protect passengers in different seat positions, posing a safety hazard.

[0006] Application Contents

[0007] The purpose of the present application is to provide a frontal airbag and a vehicle, which can improve the current technical problem of being difficult to meet the protection requirements for passengers when the seats are in different positions and posing safety hazards.

[0008] The embodiments of the present application can be implemented in the following ways:

[0009] A frontal airbag, the frontal airbag having a length direction; the frontal airbag having a main chamber and an auxiliary chamber, the auxiliary chamber and the main chamber being distributed along the length direction; the main chamber and the auxiliary chamber are both used for inflation, and when the main chamber is inflated and the auxiliary chamber is not inflated, the frontal airbag is in a normal state; when the main chamber and the auxiliary chamber are both inflated, the frontal airbag is in an extended state.

[0010] Optionally, the frontal airbag further comprises a valve structure provided between the main chamber and the auxiliary chamber, the valve structure being used to connect or isolate the main chamber and the auxiliary chamber;

[0011] When the valve structure connects the main chamber with the auxiliary chamber, both the main chamber and the auxiliary chamber can be inflated; when the valve structure isolates the main chamber from the auxiliary chamber, the main chamber can be inflated independently.

[0012] Optionally, the valve structure includes an upper lip piece and a lower lip piece connected to each other; when the upper lip piece and the lower lip piece are in contact with each other, the main chamber and the auxiliary chamber are separated; when the upper lip piece and the lower lip piece are opened, an opening for connecting the main chamber and the auxiliary chamber is formed between the upper lip piece and the lower lip piece.

[0013] Optionally, the valve structure further includes a drawstring, which is connected to the upper lip piece and / or the lower lip piece; the drawstring is used to make the upper lip piece fit with the lower lip piece when it is in a tensioned state, and the drawstring is also used to make the upper lip piece and the lower lip piece open under the action of air pressure when it is in a loosened state.

[0014] Optionally, the front airbag also includes an actuating unit, which includes a first connecting part and a second connecting part. One end of the pull rope is sleeved on the first connecting part, and when the first connecting part is connected to the second connecting part, the pull rope is in a tensioned state. When the first connecting part is separated from the second connecting part, the pull rope is detached from the first connecting part and is in the loosened state.

[0015] Optionally, the actuating unit is located outside the main chamber, and the pull rope passes through the main chamber and is sleeved on the first connecting portion.

[0016] Optionally, the upper lip piece and the lower lip piece are connected to each other in the middle to form a connecting portion, and at least parts of the upper lip piece and the lower lip piece on both sides of the connecting portion are not connected, so that when the upper lip piece and the lower lip piece are opened, the openings are respectively formed on both sides of the connecting portion.

[0017] Optionally, the frontal airbag has a first airbag portion and a second airbag portion connected to each other, the first airbag portion is used to form the main chamber, and the second airbag portion is used to form an auxiliary chamber; the second airbag portion is connected to the first airbag portion by pre-sewing to maintain it in an unexpanded position when the auxiliary chamber is not inflated.

[0018] Optionally, the frontal airbag further comprises a main generator, the main chamber has an air inlet communicated with the main generator, and the main generator is used to inflate the main chamber through the air inlet.

[0019] A vehicle comprises a vehicle body and a seat arranged in the vehicle body; the vehicle further comprises the above-mentioned frontal airbag, wherein the frontal airbag is arranged in the vehicle body and is located in front of the seat.

[0020] The beneficial effects of the front airbag and vehicle provided by the embodiments of the present application include:

[0021] The embodiment of the present application provides a frontal airbag, which has a length direction. The frontal airbag has a main chamber and an auxiliary chamber, the auxiliary chamber and the main chamber are distributed along the length direction, and both the main chamber and the auxiliary chamber are used for inflation. When the main chamber is inflated and the auxiliary chamber is not inflated, the frontal airbag is in a normal state, at which time the frontal airbag can meet the safety protection needs when the seat is relatively close to the instrument panel; when the main chamber and the auxiliary chamber are both inflated, the frontal airbag is in an extended state, at which time the frontal airbag can meet the safety protection needs when the seat is relatively far away from the instrument panel. The frontal airbag, by providing two chambers, can select a normal state or an extended state for safety protection according to the seat position, thereby meeting the protection requirements for passengers when the seat is in different positions, thereby reducing safety hazards.

[0022] An embodiment of the present application also provides a vehicle equipped with the above-mentioned front airbag, and thus has the beneficial effect of being able to meet the protection requirements for passengers when the seats are in different positions, thereby reducing safety hazards.

[0023] Summary of the Figures

[0024] The above and other features, properties and advantages of the present application will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which:

[0025] FIG1 is a schematic diagram of a partial structure of a vehicle provided in this application;

[0026] FIG2 is a schematic structural diagram of the front airbag provided by the present application when in a normal state;

[0027] FIG3 is a schematic structural diagram of the front airbag provided by the present application when in an extended state;

[0028] FIG4 is a schematic structural diagram of the valve structure provided by the present application when separating the main chamber and the auxiliary chamber;

[0029] FIG5 is a schematic structural diagram of the valve structure provided by the present application when the main chamber and the auxiliary chamber are connected;

[0030] FIG6 is a schematic diagram of the connection structure between the upper lip piece and the lower lip piece in the valve structure provided by the present application;

[0031] FIG7 is a schematic diagram of the cross-sectional structure at BB in FIG4 ;

[0032] FIG8 is a schematic diagram of the cross-sectional structure at CC in FIG5 ;

[0033] FIG9 is a schematic structural diagram of the actuating unit provided in this application;

[0034] FIG10 is a schematic structural diagram of the actuating unit provided in the present application when the pull rope is released.

[0035] Reference numerals:

[0036] 10-Vehicle; 100-Front airbag; 110-Airbag body; 111-First airbag unit; 112-Second airbag unit; 113-Main chamber; 114-Auxiliary chamber; 115-Communication port; 116-Air inlet; 117-Stitching; 120-Valve structure; 121-Upper lip panel; 1211-First edge; 1212-Second edge; 1213-First connecting edge; 122-Lower lip panel; 1221-Third edge; 1222-Fourth edge; 1223-Second connecting edge; 123-Connecting portion; 124-Opening; 125-Drawstring; 126-Loop; 130-Actuating unit; 131-First connecting portion; 132-Second connecting portion; 211-Vehicle body; 212-Seat; 213-Instrument panel.

[0037] Specific implementation methods of this application

[0038] The present application is further explained below in conjunction with specific implementation methods and accompanying drawings. More details are elaborated in the following description to facilitate a full understanding of the present application. However, the present application can obviously be implemented in a variety of other ways different from this description. Those skilled in the art can make similar generalizations and deductions based on actual application situations without violating the connotation of the present application. Therefore, the scope of protection of the present application should not be limited by the content of this specific implementation method.

[0039] For example, a description later in the specification of a first feature being formed above or on a second feature may include an embodiment in which the first and second features are directly connected, or an embodiment in which an additional feature is formed between the first and second features, thereby eliminating the need for a direct connection between the first and second features. Furthermore, when a first element is described as being connected to or coupled to a second element, the description includes embodiments in which the first and second elements are directly connected or coupled to each other, as well as embodiments in which the first and second elements are indirectly connected or coupled to each other using one or more other intervening elements.

[0040] FIG1 is a schematic diagram of a portion of the structure of a vehicle 10 according to this embodiment, FIG2 is a schematic diagram of the structure of a frontal airbag 100 according to this embodiment in a normal state, and FIG3 is a schematic diagram of the structure of a frontal airbag 100 according to this embodiment in an extended state. Referring to FIG1-3 , this embodiment provides a frontal airbag 100 and a vehicle 10.

[0041] As shown in FIG1 , vehicle 10 includes a frontal airbag 100 (not shown in FIG1 ). Vehicle 10 also includes a vehicle body 211 and a seat 212 disposed within vehicle body 211. Frontal airbag 100 is disposed within vehicle body 211 and in front of seat 212. Specifically, in this embodiment, frontal airbag 100 is a PAB. Vehicle body 211 includes an instrument panel 213 disposed in front of seat 212, and frontal airbag 100 is disposed within instrument panel 213. It should be noted that, in certain embodiments, frontal airbag 100 provided in this embodiment may also be configured as a DAB, in which case frontal airbag 100 may be disposed within the steering wheel.

[0042] The front airbag 100 has a length direction A. Preferably, the length direction A is consistent with at least one sliding direction of the seat 212 , or in other words, consistent with at least one sliding track direction of the seat 212 .

[0043] In this embodiment, the longitudinal direction of the frontal airbag 100 is the direction from the instrument panel 213 toward the seat 212, which is also the front-to-back direction of the vehicle 10. The frontal airbag 100 comprises a main chamber 113 and an auxiliary chamber 114. The auxiliary chamber 114 and the main chamber 113 are arranged along the longitudinal direction, and both the main chamber 113 and the auxiliary chamber 114 are used for inflation. When the main chamber 113 is inflated and the auxiliary chamber 114 is not inflated, the frontal airbag 100 is in a normal state. In this state, the frontal airbag 100 can meet the safety requirements when the seat 212 is relatively close to the instrument panel 213 (as shown by the solid line in FIG1 ). When both the main chamber 113 and the auxiliary chamber 114 are inflated, the frontal airbag 100 is in an extended state. In this state, the frontal airbag 100 can meet the safety requirements when the seat 212 is relatively far from the instrument panel 213 (as shown by the dashed line in FIG1 ). It should be noted that the "close" and "far away" mentioned here are relative concepts. Generally, the middle position of the range of the seat 212 sliding forward and backward can be used as the dividing point. When the seat 212 is in the middle position close to the side of the instrument panel 213, it is regarded as the position when the seat 212 is relatively close to the instrument panel 213. When the seat 212 is in the middle position away from the side of the instrument panel 213, it is regarded as the position when the seat 212 is away from the instrument panel 213.

[0044] Specifically, the frontal airbag 100 includes an airbag body 110 having a first airbag portion 111 and a second airbag portion 112 connected to each other. The first airbag portion 111 is used to form a main chamber 113 , and the second airbag portion 112 is used to form an auxiliary chamber 114 .

[0045] Optionally, frontal airbag 100 further includes a main generator (not shown). Main chamber 113 has an air inlet 116 communicating with the main generator. In the event of a collision, the main generator inflates the main chamber 113 through air inlet 116, causing the main chamber 113 to expand and thereby protect the occupant. Specifically, main chamber 113 is located forward of auxiliary chamber 114 and closer to instrument panel 213 than auxiliary chamber 114, facilitating inflatable movement of the main generator located in instrument panel 213 into the main chamber 113.

[0046] FIG4 illustrates a schematic diagram of the valve structure 120 provided in this embodiment when separating the main chamber 113 from the auxiliary chamber 114. FIG5 illustrates a schematic diagram of the valve structure 120 provided in this embodiment when connecting the main chamber 113 and the auxiliary chamber 114. FIG6 illustrates a schematic diagram of the expanded structure connecting the upper lip panel 121 and the lower lip panel 122 in the valve structure 120 provided in this embodiment. Referring to FIG1-FIG6 , in this embodiment, the frontal airbag 100 further includes a valve structure 120 disposed between the main chamber 113 and the auxiliary chamber 114. The valve structure 120 connects or disconnects the main chamber 113 and the auxiliary chamber 114. When the valve structure 120 connects the main chamber 113 and the auxiliary chamber 114, both the main chamber 113 and the auxiliary chamber 114 can be inflated. When the valve structure 120 disconnects the main chamber 113 and the auxiliary chamber 114, the main chamber 113 can be independently inflated.

[0047] Specifically, the first airbag portion 111 and the second airbag portion 112 are sewn together, and a communication port 115 is formed at the sewn portion, connecting the main chamber 113 and the auxiliary chamber 114. A valve structure 120 is provided at the communication port 115, and the main chamber 113 and the auxiliary chamber 114 are connected or isolated by opening and closing the communication port 115. When the valve structure 120 opens the communication port 115, the main chamber 113 and the auxiliary chamber 114 are connected. When the main generator inflates the main chamber 113 through the air inlet 116, the gas in the main chamber 113 enters the auxiliary chamber 114 through the communication port 115, thereby simultaneously inflating the auxiliary chamber 114, and the frontal airbag 100 is in the extended state. When valve structure 120 closes communication port 115, main chamber 113 is isolated from auxiliary chamber 114. When the main generator inflates main chamber 113 through air inlet 116, gas in main chamber 113 cannot enter auxiliary chamber 114 through communication port 115. Consequently, only main chamber 113 is inflated, and frontal airbag 100 is in a normal state. In this embodiment, auxiliary chamber 114 is inflated by gas entering from main chamber 113. It will be appreciated that in other embodiments, other methods may be used to inflate auxiliary chamber 114.

[0048] Furthermore, the second airbag portion 112 is pre-sewn to the first airbag portion 111, allowing it to remain in the undeployed position shown in FIG2 when the auxiliary chamber 114 is not inflated. FIG2 also illustrates the location of the pre-sewn seams 117. Due to the pre-sewn connection, when the auxiliary chamber 114 is inflated, the pre-sewn seams 117 break under the force of the air pressure, allowing the second airbag portion 112 to deploy as the air is inflated, ultimately forming the extended frontal airbag 100 structure shown in FIG3.

[0049] Optionally, the valve structure 120 includes an upper lip piece 121 and a lower lip piece 122 that are connected to each other. When the upper lip piece 121 and the lower lip piece 122 are in contact with each other (as shown in Figures 4 and 7), the main chamber 113 is separated from the auxiliary chamber 114; when the upper lip piece 121 and the lower lip piece 122 are opened (as shown in Figures 5 and 8), an opening 124 for connecting the main chamber 113 and the auxiliary chamber 114 is formed between the upper lip piece 121 and the lower lip piece 122. Optionally, the middle parts of the upper lip piece 121 and the lower lip piece 122 are connected to each other to form a connecting portion 123, and at least parts of the upper lip piece 121 and the lower lip piece 122 on both sides of the connecting portion 123 are not connected, so that when the upper lip piece 121 and the lower lip piece 122 are opened, openings 124 are respectively formed on both sides of the connecting portion 123, that is, in this embodiment, the upper lip piece 121 and the lower lip piece 122 can form two openings 124.

[0050] Specifically, the upper lip panel 121 has a first edge 1211 and a second edge 1212 located on either side of the connecting portion 123, as well as a first connecting edge 1213 connecting the first edge 1211 and the second edge 1212. The lower lip panel 122 has a third edge 1221 and a fourth edge 1222 located on either side of the connecting portion 123, as well as a second connecting edge 1223 connecting the third edge 1221 and the fourth edge 1222. The first and second connecting edges 1213 and 1223 are fixedly connected to the airbag body 110 along the edge of the communication opening 115. In this case, the first edge 1211 faces the third edge 1221, while the second edge 1212 faces the fourth edge 1222. When the upper lip panel 121 and the lower lip panel 122 are opened, the first edge 1211 and the third edge 1221 form an opening 124, while the second edge 1212 and the fourth edge 1222 form another opening 124.

[0051] In this embodiment, the valve structure 120 further includes a drawstring 125 connected to the upper lip panel 121 and / or the lower lip panel 122. The drawstring 125 is used to fit the upper lip panel 121 and the lower lip panel 122 together when in a tightened state (as shown in FIG7 , where the dashed arrows in FIG7 indicate the direction of airflow, and the airflow does not pass through the valve structure 120); the drawstring 125 is also used to open the upper lip panel 121 and the lower lip panel 122 under the action of air pressure when in a loosened state (as shown in FIG8 , where the dashed arrows in FIG8 indicate the direction of airflow, and the airflow passes through the valve structure 120). Specifically, one end of the pull rope 125 is fixedly connected to the connecting portion 123, that is, in this embodiment, the pull rope 125 can be regarded as being connected to both the upper lip piece 121 and the lower lip piece 122 at the same time. It can be understood that in some other embodiments, the pull rope 125 can also be set to be connected only to the upper lip piece 121 or only to the lower lip piece 122.

[0052] FIG9 is a schematic diagram of the structure of the actuating unit 130 provided in this embodiment, and FIG10 is a schematic diagram of the structure of the actuating unit 130 provided in this embodiment when the pull cord 125 is released. Referring to FIG1-10 , the frontal airbag 100 further includes an actuating unit 130, which switches the pull cord 125 between a tensioned state and a released state.

[0053] Specifically, the actuating unit 130 includes a first connecting portion 131 and a second connecting portion 132. A loop 126 is provided at one end of the pull rope 125 away from the connecting portion 123. The loop 126 is sleeved on the first connecting portion 131. At the same time, when the first connecting portion 131 is connected to the second connecting portion 132 (as shown in Figure 9), the loop 126 is limited on the first connecting portion 131. At this time, the pull rope 125 is in a tensioned state; when the first connecting portion 131 is separated from the second connecting portion 132 (as shown in Figure 10), the loop 126 can be detached from the gap between the first connecting portion 131 and the second connecting portion 132, thereby being in a loose state. At this time, if the main chamber 113 is inflated, the gas entering the main chamber 113 causes the upper lip piece 121 and the lower lip piece 122 to detach and then open the opening 124. The gas in the main chamber 113 enters the connecting port 115 through the opening 124, thereby inflating the auxiliary chamber 114. Optionally, the actuating unit 130 may be disposed in the instrument panel 213 , and the connecting portion 123 may be located in the main chamber 113 under the tension of the pull rope 125 .

[0054] It should be noted that the structure of the actuating unit 130 is not limited here. For example, the structure of the actuating unit 130 can also be set to a structure in which the pull rope 125 is wound on a rod. By retracting and unreeling the pull rope 125, the pull rope 125 can be switched between a loose state and a tightened state.

[0055] The front airbag 100 and vehicle 10 provided in the embodiment of the present application can determine whether to trigger the actuation unit 130 (TAU) based on the actual position of the seat 212 to loosen or tighten the pull rope 125 of the front airbag 100 when a safety accident such as a collision occurs.

[0056] If it is detected that the seat 212 is close to the position of the front airbag 100 (in other words, the seat 212 is close to the instrument panel 213, for example, the seat 212 is detected to be in the seat position shown by the solid line in Figure 1), the actuator unit 130 is not triggered, and the first connecting portion 131 and the second connecting portion 132 are maintained in a connected state, thereby limiting the ring 126 on the first connecting portion 131, and the pull rope 125 is in a tensioned state. The tension of the pull rope 125 makes the upper lip piece 121 and the lower lip piece 122 fit tightly together, and the gas injected into the main chamber 113 by the main generator through the air inlet 116 cannot enter the auxiliary chamber 114 through the connecting port 115, and the second airbag part 112 is in an unexpanded state, that is, there is no need to inflate the auxiliary chamber 114; if it is detected that the seat 212 is close to the position of the front airbag 100 Farther (in other words, the seat 212 is farther away from the instrument panel 213, for example, it is detected that the seat 212 is in the position shown by the dotted line in Figure 1), the actuating unit 130 is triggered to separate the first connecting part 131 and the second connecting part 132 (in the state shown in Figure 10), so that the ring 126 can be detached from the first connecting part 131, and the pull rope 125 is switched to a loose state. The main generator injects gas into the main chamber 113 through the air inlet 116 to open the upper lip piece 121 and the lower lip piece 122 to form an opening 124. The gas enters the auxiliary chamber 114 through the opening 124 and the connecting port 115, and the pre-sewn seam 117 breaks under the action of the air pressure, and the second airbag part 112 is deployed. At this time, the auxiliary chamber 114 can be inflated to protect the occupant on the seat 212.

[0057] The front airbag 100 and the vehicle 10 are provided with two chambers so that they can select a normal state or an extended state for safety protection according to the position of the seat 212, meeting the protection requirements for passengers when the seat 212 is in different positions, thereby reducing safety hazards.

[0058] Although the present application is disclosed above with reference to preferred embodiments, this is not intended to limit the present application. Any person skilled in the art may make possible changes and modifications without departing from the spirit and scope of the present application. Therefore, any modifications, equivalent variations, and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application shall fall within the scope of protection defined by the claims of the present application.

Claims

1. A frontal airbag, the frontal airbag having a length direction; characterized in that: The frontal airbag has a main chamber and an auxiliary chamber, and the auxiliary chamber and the main chamber are distributed along the length direction; the main chamber and the auxiliary chamber are both used for inflation, and when the main chamber is inflated and the auxiliary chamber is not inflated, the frontal airbag is in a normal state; when the main chamber and the auxiliary chamber are both inflated, the frontal airbag is in an extended state.

2. The frontal airbag according to claim 1, characterized in that: The frontal airbag further comprises a valve structure disposed between the main chamber and the auxiliary chamber, the valve structure being used to connect or isolate the main chamber and the auxiliary chamber; When the valve structure connects the main chamber with the auxiliary chamber, both the main chamber and the auxiliary chamber can be inflated; when the valve structure separates the main chamber from the auxiliary chamber, the main chamber can be inflated independently.

3. The frontal airbag according to claim 2, characterized in that: The valve structure includes an upper lip piece and a lower lip piece that are connected to each other; when the upper lip piece and the lower lip piece are in contact with each other, the main chamber and the auxiliary chamber are separated; when the upper lip piece and the lower lip piece are opened, an opening for connecting the main chamber and the auxiliary chamber is formed between the upper lip piece and the lower lip piece.

4. The frontal airbag according to claim 3, characterized in that: The valve structure also includes a draw cord, which is connected to the upper lip piece and / or the lower lip piece; the draw cord is used to make the upper lip piece fit with the lower lip piece when it is in a tensioned state, and the draw cord is also used to make the upper lip piece and the lower lip piece open under the action of air pressure when it is in a loosened state.

5. The frontal airbag according to claim 4, characterized in that: The frontal airbag also includes an actuating unit, which includes a first connecting part and a second connecting part. One end of the pull rope is sleeved on the first connecting part, and when the first connecting part is connected to the second connecting part, the pull rope is in a tensioned state. When the first connecting part is separated from the second connecting part, the pull rope is detached from the first connecting part and is in the loosened state.

6. The frontal airbag according to claim 5, characterized in that: The actuating unit is located outside the main chamber, and the pull rope passes through the main chamber and is sleeved on the first Connection part.

7. The frontal airbag according to claim 3, characterized in that: The upper lip piece and the lower lip piece are connected to each other in the middle to form a connecting portion, and at least parts of the upper lip piece and the lower lip piece on both sides of the connecting portion are not connected, so that when the upper lip piece and the lower lip piece are opened, the openings are respectively formed on both sides of the connecting portion.

8. The frontal airbag according to claim 1, characterized in that: The frontal airbag has a first airbag portion and a second airbag portion connected to each other, the first airbag portion is used to form the main chamber, and the second airbag portion is used to form an auxiliary chamber; the second airbag portion is connected to the first airbag portion by pre-sewing to maintain it in an unexpanded position when the auxiliary chamber is not inflated.

9. The frontal airbag according to claim 1, characterized in that: The frontal airbag further includes a main generator, the main chamber has an air inlet communicated with the main generator, and the main generator is used to inflate the main chamber through the air inlet.

10. A vehicle, comprising a vehicle body and a seat arranged in the vehicle body; characterized in that: The vehicle further comprises a frontal airbag as claimed in any one of claims 1 to 9, wherein the frontal airbag is arranged in the vehicle body and located in front of the seat.

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