Safety air bag, automobile seat and automobile

Abstract

The utility model provides a safety air bag, an automobile seat and an automobile, the safety air bag comprises a first air bag and a second air bag, the second air bag is connected to the first side of the first air bag, and the first air bag communicates with the second air bag through a communicating channel; the second side of the first air bag is used for being installed on an air bag installation position of an automobile, and the second side is opposite to the first side. And when the safety air bag is mounted on the air bag mounting position and is in an inflatable unfolding state, the second air bag is used for being opposite to the front position of the head and chest of a to-be-protected passenger so as to carry out front buffering protection on the head and chest of the to-be-protected passenger. The safety air bag is better in buffering performance when being inflated and unfolded, and therefore the protection effect of the safety air bag on passengers can be improved.

Description

Technical Field

[0001] This application relates to the technical field of vehicle safety, and particularly to an airbag, a vehicle seat, and a vehicle. Background Art

[0002] Airbags can improve the safety of occupants in a vehicle. They can quickly inflate when a vehicle collision occurs, providing additional protection for passengers. Conventional airbags typically include an airbag that resembles a parcel or a sphere when inflated. When a vehicle collision occurs, the airbag fills with gas and forms a spherical-like structure to buffer and protect the occupants. Although airbags with this structure can provide a certain degree of buffering and protection for the occupants, due to limited buffering performance, the protection effect is not satisfactory. Summary of the Utility Model

[0003] This application provides an airbag, a vehicle seat, and a vehicle. The provided airbag has better buffering performance when inflated and deployed, thus improving the protection effect of the airbag on the occupants. The specific solutions are as follows:

[0004] In a first aspect, an embodiment of this application provides an airbag, including: a first airbag and a second airbag. The second airbag is connected to the first side of the first airbag, and the first airbag and the second airbag are connected through a communication channel. The second side of the first airbag is used for installation at an airbag installation position on a vehicle, and the second side is opposite to the first side.

[0005] When the airbag is installed at the airbag installation position and in an inflated and deployed state, the second airbag is used to face the front position of the head and chest of the occupant to be protected, so as to provide front buffering protection for the head and chest of the occupant to be protected.

[0006] Optionally, the airbag is used to provide front buffering protection for the occupants on the rear seat, and the airbag installation position is provided on the backrest of the front row seat of the rear seat.

[0007] Optionally, the height of the first airbag is higher than that of the second airbag, and the second airbag is close to the top of the first airbag. When the airbag is installed at the airbag installation position and in an inflated and deployed state, the part of the first airbag that is not opposite to the second airbag is used to face the front position of the legs of the occupant to be protected, so as to provide front buffering protection for the legs of the occupant to be protected.

[0008] Optionally, the height of the second airbag is higher than that of the first airbag, the first airbag is close to the lower part of the second airbag, and the airbag installation position is provided at the middle and lower part of the backrest of the front row seat (20).

[0009] Optionally, the whole formed by the first airbag and the second airbag is in a gourd shape.

[0010] Optionally, the airbag mounting position is located at the lower part of the backrest of the front row of seats, and the position near the lower end of the second side of the first airbag is used to be mounted on the airbag mounting position.

[0011] Optionally, a gas generator for inflating the airbag is fixedly arranged in the first airbag, and the gas generator is also used to be mounted on the airbag mounting position, so that the first airbag is mounted on the airbag mounting position through the gas generator.

[0012] In a second aspect, an embodiment of the present application further provides an automobile seat, including a seat cushion and a backrest. An airbag mounting position is provided at the rear side of the backrest, and the airbag as described in any item of the first aspect is mounted on the airbag mounting position;

[0013] When the airbag is in an inflated and deployed state, the second airbag of the airbag is used to face the front position of the head and chest of the occupant on the rear row of seats of the automobile seat, so as to perform frontal buffer protection on the head and chest of the occupant on the rear row of seats.

[0014] Optionally, when the gas generator is fixedly arranged in the first airbag of the airbag, a mounting bracket is provided on the skeleton of the backrest, and the gas generator is fixedly mounted on the mounting bracket.

[0015] Optionally, a separator is provided on the skeleton of the backrest, the airbag is mounted at the rear side of the separator, and the front side of the separator is used to mount the components inside the backrest.

[0016] In a third aspect, the present application further provides an automobile. An airbag mounting position is provided inside the automobile, and the airbag as described in any item of the first embodiment is mounted on the airbag mounting position;

[0017] When the airbag is in an inflated and deployed state, the second airbag of the airbag faces the front position of the head and chest of the occupant to be protected, so as to perform frontal buffer protection on the head and chest of the occupant to be protected.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] The airbag provided by the present application includes a first airbag and a second airbag. The second airbag is connected to the first side of the first airbag, and the first airbag and the second airbag are connected through a communication channel. The second side of the first airbag is used to be installed at the airbag installation position of the vehicle. Since the second side is opposite to the first side, when the airbag is installed at the airbag installation position and in the inflated and deployed state, the first airbag is located between the second airbag and the airbag installation position, and the second airbag can be opposite to the front position of the head and chest of the occupant to be protected, so as to provide frontal buffer protection for the head and chest of the occupant to be protected.

[0020] The airbag provided by the present application has two connected airbags. Since there is a gap between the two airbags in the inflated and deployed state, the buffering performance of the airbag can be enhanced, thereby improving the protection effect of the airbag on the occupant. In addition, the double-chamber structure formed by the two airbags can better disperse and absorb the impact force, reduce the injury to the occupant, and the design of the double-chamber airbag can also better maintain the shape, reduce the contact area between the occupant and the airbag, and thus reduce the secondary injury caused by the contact with the airbag. Brief Description of the Drawings

[0021] Figure 1 It is a schematic structural state diagram of the airbag provided by the embodiment of the present application when it is installed on the backrest of the front-row seat and in the inflated and deployed state.

[0022] Figure 2 is Figure 1 The schematic structural state diagram of the airbag shown when it collides with the occupant.

[0023] Figure 3 It is an example installation schematic diagram of the airbag provided by the embodiment of the present application on the backrest of the front-row seat.

[0024] Figure 4 It is a schematic structural diagram of the separator in the embodiment of the present application.

[0025] Reference Signs:

[0026] 10. Airbag; 11. First airbag; 12. Second airbag; 13. Gas generator; 20. Front-row seat; 30. Rear-row seat; 40. Separator; 50. Roof. Detailed Description of the Embodiment

[0027] Many specific details are set forth in the following description in order to provide a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0030] An airbag can improve the safety of an occupant in a vehicle. It can provide additional protection for passengers by quickly inflating when a vehicle collision occurs. The airbags in the related art generally include an airbag that is similar to a bag-like or spherical shape in the inflated state. When a vehicle collision occurs, the airbag fills with gas and forms a spherical-like structure, thereby being able to buffer and protect the occupant. Although the airbag with this structure can buffer and protect the occupant to a certain extent, due to limited buffering performance, the protection effect is not good.

[0031] Therefore, the present application provides an airbag, a vehicle seat and a vehicle. The provided airbag has better buffering performance when inflated and deployed, and thus can improve the protection effect of the airbag on the occupant.

[0032] Next, the airbag 10 provided by the present application will be described in detail with reference to the drawings.

[0033] As Figure 1 、 Figure 2 shown, the airbag 10 provided by the embodiment of the present application includes a first airbag 11 and a second airbag 12. The second airbag 12 is connected to the first side of the first airbag 11, and the first airbag 11 and the second airbag 12 are connected through a communication channel so that the first airbag 11 and the second airbag 12 form a double-chamber airbag; the second side of the first airbag 11 is used for installation at the airbag installation position of the vehicle, and the second side is opposite to the first side.

[0034] When the airbag 10 is installed at the airbag installation position and in the inflated and deployed state, the second airbag 12 is used to face the front position of the head and chest of the occupant to be protected, so as to provide front buffering protection for the head and chest of the occupant to be protected.

[0035] The airbag 10 provided in this application can be installed on the front side of the first-row seat to buffer and protect the front of the first-row occupant. For example, it can be installed at the center position of the driver's steering wheel or in front of the steering wheel to protect the driver from the front. Or, it can be installed at a position in front of the instrument panel of the vehicle near the co-pilot seat to protect the co-pilot from the front. This application does not specifically limit it. Correspondingly, when the airbag 10 is used to buffer and protect the occupant on the first-row seat, the airbag installation position for installing the airbag 10 can be set at at least one of the following positions: the center position of the steering wheel, the front of the steering wheel, and the position in front of the instrument panel near the co-pilot seat, but not limited thereto.

[0036] The airbag 10 provided in this application can also be installed on the backrest of the front-row seat to buffer and protect the front of the rear-row occupant on the rear-row seat 30. For example, it can be installed on the rear side of the backrest of the front-row seat. It can be understood that when the vehicle includes three rows or more seats, the above-mentioned rear-row seat 30 can be the second-row seat, the third-row seat, etc., and the front-row seat refers to the front-row seat 20 in front of the rear-row seat 30. Correspondingly, when the airbag 10 is used to buffer and protect the front of the occupant on the rear-row seat 30, the airbag installation position for installing the airbag 10 can be set on the backrest of the front-row seat 20 in front of the rear-row seat 30.

[0037] When inflated and deployed, the first airbag 11 and the second airbag 12 can be spherical, parcel-shaped, ellipsoidal, pancake-shaped, etc. respectively, or can be in other shapes. The structures of the first airbag 11 and the second airbag 12 can be the same or different, and those skilled in the art can set them according to actual needs. When both the first airbag 11 and the second airbag 12 are parcel-shaped similar to a sphere, it can buffer and protect the occupant from the front more effectively, and the protection effect is better.

[0038] In the embodiment of this application, the first airbag 11 and the second airbag 12 can be an integrally formed structure. For example, the first airbag 11 and the second airbag 12 are woven into an integrally formed structure through an integral weaving process. In this way, the overall structure of the airbag 10 can be made more reliable. Or, the first airbag 11 and the second airbag 12 can also be connected by sewing, bonding, etc.

[0039] The communication channel between the first airbag 11 and the second airbag 12, that is, the connecting part between the first airbag 11 and the second airbag 12, can be an integrally formed structure with the first airbag 11 and the second airbag 12, so as to improve the overall reliability of the airbag 10. This connecting part can also be respectively connected to the first airbag 11 and the second airbag 12 by sewing or other connection methods. This application does not specifically limit it.

[0040] The connecting channel can be set to be relatively short, so that when the airbag 10 is inflated and deployed, the distance between the first airbag 11 and the second airbag 12 is less than a preset distance, so that the first airbag 11 can better support the first airbag 11, making the overall structural stability of the airbag 10 better, so that the frontal protection effect on the occupant is more stable, and it is also convenient for the gas generated by the gas generator 13 to flow smoothly and quickly from one airbag to another airbag, so that the airbag 10 is inflated quickly.

[0041] The connecting part can extend along the entire width direction of the first airbag 11 to reliably connect the first airbag 11 and the second airbag 12, so that the position of the second airbag 12 relative to the first airbag 11 is more reliable when the airbag 10 is in the inflated and deployed state, and the cross-sectional area of the connecting channel can be increased, which is convenient for the gas generated by the gas generator 13 to flow smoothly and quickly from one airbag to another airbag, so that the airbag 10 is inflated quickly.

[0042] The channel height of the connecting channel in the height direction can be less than a preset height, so that the cross-sectional area of the gap between the first airbag 11 and the second airbag 12 is relatively large when in the inflated and deployed state, so as to ensure better buffering performance.

[0043] The second side of the first airbag 11 can be used to be connected to the airbag mounting position by means of sewing, bonding, bolt connection, etc.

[0044] Optionally, when the safety is in the inflated and deployed state, the cross-section of the first airbag 11 can be larger than the cross-section of the second airbag 12, and the orthographic projection of the second airbag 12 on the first airbag 11 can be within the orthographic projection range of the second airbag 12. In this way, the first airbag 11 can more reliably support the first airbag 11, making the structure of the airbag more reliable when in the inflated and deployed state, so that the occupant can be buffered and protected more stably. Or, the cross-section of the first airbag 11 can also be smaller than the cross-section of the second airbag 12, and the present application does not specifically limit it.

[0045] In one embodiment, as Figure 1 、 Figure 2As shown in the figure, the height of the first airbag 11 can be higher than that of the second airbag 12. The second airbag 12 is close to the top of the first airbag 11. When the airbag 10 is installed in the airbag installation position and in the inflated and deployed state, the part of the first airbag 11 that is not opposite to the second airbag 12 is used to face the front position of the leg of the occupant to be protected, so as to provide frontal buffer protection for the leg of the occupant to be protected. Specifically, the gap between the height of the second airbag 12 and the height of the occupant from head to chest can be less than the second preset height. In this way, the second airbag 12 can effectively protect the head and chest of the occupant. The gap between the height of the first airbag 11 and the height of the occupant sitting on the car seat can be less than the first preset height. That is to say, the difference between the height of the first airbag 11 and the height of the occupant sitting on the car seat is small. In this way, the first airbag 11 can be basically opposite to the occupant from head to foot, so that the lower part of the first airbag 11 can effectively buffer and protect the leg of the occupant, and the upper part of the first airbag 11 can form two overlapping airbag structures with the second airbag 12 to provide a better buffer protection effect for the head and chest of the occupant.

[0046] In another embodiment, the height of the second airbag 12 can also be higher than that of the first airbag 11. The first airbag 11 is close to the lower part of the second airbag 12. The above-mentioned airbag installation position is arranged in the middle and lower part of the backrest of the front row seat 20. In this way, the middle and upper part positions of the backrest of the front row seat 20 can be left for installing functional devices such as a display screen and a toolbox.

[0047] In other embodiments, the height of the second airbag 12 can also be the same as that of the first airbag 11. The present application does not specifically limit the specific structures and sizes of the first airbag and the second airbag.

[0048] In a specific embodiment, as Figure 1 shown, the whole formed by the first airbag 11 and the second airbag 12 can be in a gourd shape. The gourd head of the gourd-shaped airbag 10 is offset from the center relative to the gourd abdomen, that is, the gourd head of the gourd-shaped airbag 10 is skewed relative to the gourd abdomen, so that when the airbag 10 is installed in the airbag installation position and in the inflated and deployed state, the second airbag 12 can face the head and chest of the occupant, and the lower part of the first airbag 11 can face the leg of the occupant.

[0049] In a specific embodiment, a gas generator 13 for inflating the airbag 10 can be fixedly arranged in the first airbag 11. The gas generator 13 is specifically used to inflate the first airbag 11 and the second airbag 12, and the gas generator 13 is also used to be installed in the airbag installation position, so that the first airbag 11 is installed in the airbag installation position through the gas generator 13.

[0050] Optionally, when the airbag 10 is in the deployed state, the shape of the surface of the second side of the first airbag 11 can be fitted and matched with the rear surface of the backrest of the front row seat 20, so that when the airbag 10 is installed in the airbag installation position and in the inflated state, the surface of the second side of the first airbag 11 is in contact with the rear surface of the backrest of the front row seat 20, thereby more reliably supporting the airbag 10 and improving the structural stability when the airbag 10 is deployed.

[0051] The gas generator 13 may include a propellant pack, an ignition device, and a generator housing. The propellant pack contains the chemical substances of the gas generator 13, which are used to rapidly generate a large amount of gas when the vehicle collides, so that the airbag 10 can be rapidly inflated. The ignition device is used to ignite the propellant pack to initiate the chemical reaction to generate gas. The ignition device may be an electronic trigger, and the electronic trigger is controlled by the electronic control unit of the vehicle. The propellant pack and the ignition device are arranged in the generator housing.

[0052] The generator housing of the gas generator 13 may be fixedly connected to the first airbag 11, and the generator housing may be installed in the airbag installation position by means of bolt connection, snap connection, etc.

[0053] The airbag 10 provided in this application includes a first airbag 11 and a second airbag 12. The second airbag 12 is connected to the first side of the first airbag 11, and the first airbag 11 and the second airbag 12 are communicated through a communication channel. The second side of the first airbag 11 is used to be installed in the airbag installation position of the vehicle. Since the second side is opposite to the first side, when the airbag 10 is installed in the airbag installation position and in the inflated and deployed state, the first airbag 11 is located between the second airbag 12 and the airbag installation position, as Figure 1 and Figure 2 shown, the second airbag 12 can be opposite to the front position of the head and chest of the occupant to be protected, so as to provide frontal buffer protection for the head and chest of the occupant to be protected.

[0054] The airbag 10 provided in this application has two connected airbags. Since there is a gap between the two airbags in the inflated and deployed state, the buffering performance of the airbag 10 can be enhanced, thereby improving the protection effect of the airbag 10 on the occupant. In addition, the double-chamber structure formed by the two airbags can better disperse and absorb the impact force, reduce the injury to the occupant, and the design of the double-chamber airbag can also better maintain the shape, reduce the contact area between the occupant and the airbag, and thus reduce the secondary injury caused by the contact with the airbag.

[0055] This application embodiment also provides an automotive seat, as Figure 1 、 Figure 2 shown, Figure 1 、 Figure 2The front row of seats 20 in the above is the vehicle seat in this embodiment. The vehicle seat provided in this embodiment includes a seat cushion and a backrest. An airbag mounting position is provided at the rear side of the backrest, and an airbag 10 as described in any one of the above embodiments is mounted on the airbag mounting position; when the airbag 10 is in the inflated and deployed state, the second airbag 12 of the airbag 10 is used to face the front position of the head and chest of the occupant on the rear row of seats of the vehicle seat, so as to provide frontal buffer protection for the head and chest of the occupant on the rear row of seats.

[0056] The above vehicle seat can be a front row seat or a rear row seat 30. When the vehicle seat is a rear row seat 30, there is still a seat located behind the vehicle seat after the vehicle seat is installed on the vehicle, so as to provide buffer protection for the occupant on the rear row of seats through the airbag 10 provided on the backrest of the vehicle seat provided in the embodiment of the present application.

[0057] Optionally, as Figure 1 、 Figure 2 shown, the airbag mounting position is located at the lower part of the backrest, and the position adjacent to the lower end on the second side of the first airbag 11 is mounted on the airbag mounting position.

[0058] Optionally, as Figure 1 、 Figure 2 shown, a gas generator 13 for inflating the airbag 10 is fixedly provided in the first airbag 11, and the gas generator 13 is mounted on the airbag mounting position, so that the first airbag 11 is mounted on the airbag mounting position through the gas generator 13.

[0059] Optionally, a mounting bracket is provided on the skeleton of the backrest, and the gas generator 13 is fixedly mounted on the mounting bracket. For example, the generator housing of the gas generator 13 is fixed on the mounting bracket by means of bolt connection, clamping, riveting, etc. It is more convenient to mount the airbag 10 on the backrest by providing the mounting bracket.

[0060] Optionally, as Figure 3 、 Figure 4As shown, a separator 40 may be provided on the skeleton of the backrest. The separator 40 may also be understood as a diversion piece. The airbag 10 is installed at the rear side of the separator 40, and the front side of the separator 40 is for installing components inside the backrest. Components inside the backrest may include, for example, sensors, cables, etc., but are not limited thereto. The separator 40 may be a cloth piece, a plastic piece, etc., or may be other materials with isolation and protection functions. The present application does not specifically limit it. The separator 40 may be connected to the skeleton of the seat back by means of threaded connection, snap connection or gas connection. By providing the separator 40 in this embodiment, it is possible to better prevent the airbag from being scratched and damaged during the process of gas ignition and inflation of the airbag, and it is also possible to better prevent damage to components such as wire harnesses inside the seat back during the ignition process.

[0061] It can be understood that when no collision occurs, the airbag 10 is folded and placed inside the backrest. An airbag baffle may be provided on the backrest, and the airbag baffle is used to block the airbag 10. When a collision occurs, the electronic control unit of the vehicle controls the gas generator 13 of the airbag 10 to inflate each airbag of the airbag 10, so that the airbag 10 inflates and deploys, so as to push the airbag baffle away from the backrest of the front-row seat 20 and pop out the airbag 10 to protect the occupant.

[0062] The specific implementation manner of the airbag 10 in this embodiment of the vehicle seat and the installation manner of the airbag on the vehicle are analogous to the airbag 10 in the above embodiment. For specific details, refer to the relevant content of the above embodiment, and no redundant description will be given here.

[0063] An embodiment of the present application also provides a vehicle. An airbag installation position is provided inside the vehicle, and the airbag 10 described in any one of the above embodiments is installed on the airbag installation position, as Figures 1 to 3 shown, when the airbag 10 is in the inflated and deployed state, the second airbag 12 of the airbag 10 is opposite to the front position of the head and chest of the occupant to be protected, so as to perform frontal buffer protection on the head and chest of the occupant to be protected.

[0064] The airbag installation position may include at least one of the following positions: the central position of the steering wheel, the front part of the steering wheel, the position near the co-pilot seat in the front part of the instrument panel, the inside of the door, and the backrest of the front-row seat 20.

[0065] Optionally, as Figures 1 to 3 shown, the vehicle may be provided with multiple rows of seats. The airbag installation position may be provided on the backrest of the front-row seat 20 of the protected seat, and specifically may be provided on the backrest skeleton of the front-row seat 20 of the protected seat. The protected seat is the seat protected by the airbag 10. In this way, the airbag 10 provided by the present application can be installed on the backrest of the front-row seat 20 to perform buffer protection on the rear-row occupants.

[0066] Optionally, the airbag mounting position is located at the lower part of the backrest of the front row seat 20, and the position adjacent to the lower end on the second side of the first airbag 11 is used to be mounted on the airbag mounting position.

[0067] Optionally, a gas generator 13 for inflating the airbag 10 is fixedly arranged in the first airbag 11, and the gas generator 13 is also used to be mounted on the airbag mounting position, so that the first airbag 11 is mounted on the airbag mounting position through the gas generator 13.

[0068] Optionally, a mounting bracket may be provided on the backrest frame of the front row seat 20, and the gas generator 13 of the airbag 10 may be fixedly mounted on the mounting bracket. For example, the generator housing of the gas generator 13 is fixed on the mounting bracket by means of bolt connection, clamping, riveting, etc. By providing the mounting bracket, it is more convenient to mount the airbag 10 on the backrest of the front row seat.

[0069] Optionally, as Figure 3 , Figure 4 shown, a separator 40 may be provided on the backrest frame of the front row seat 20. The separator 40 may also be understood as a flow guide piece. The airbag 10 is mounted on one side (i.e., the rear side) of the separator 40 facing the rear row seat 30 (i.e., the protection seat). The side (i.e., the front side) of the separator 40 facing away from the rear row seat 30 is used to mount the components inside the backrest. The components inside the backrest may include, for example, sensors, cables, etc., but are not limited thereto. The separator 40 may be a cloth piece, a plastic piece, etc., or other materials with isolation and protection functions. The present application does not specifically limit it. The separator 40 may be connected to the backrest frame of the seat by means of screw connection, clamping or gas connection. In this embodiment, by providing the separator 40, it is possible to better prevent the phenomenon that the airbag is scratched and damaged during the process of the gas generator 13 detonating to inflate the airbag, and it is also possible to better prevent the damage of components such as the wire harness inside the seat backrest during the detonation process.

[0070] It can be understood that when no collision occurs, the airbag 10 is folded and placed inside the backrest of the front row seat 20, and an airbag cover plate may be provided on the backrest of the front row seat 20. The airbag cover plate is used to cover the airbag 10. When a collision occurs, the electronic control unit of the vehicle controls the gas generator 13 of the airbag 10 to inflate each airbag of the airbag 10, so that the airbag 10 is inflated and deployed, so as to push the airbag cover plate away from the backrest of the front row seat 20 and pop out the airbag 10 to protect the occupants.

[0071] The specific implementation manner of the airbag 10 in this vehicle embodiment and the installation manner of the airbag on the vehicle are analogous to the airbag 10 in the above embodiment. For specific details, please refer to the relevant content of the above embodiment, and no redundant description will be given here.

[0072] It should be noted that although several structures, components or units for implementing related functions are mentioned in the above detailed description, such a division is not mandatory. In fact, according to the specific implementation manners of the present application, the features and functions of two or more structures, components or units described above may be embodied in one structure, component or unit. Conversely, the features and functions of one structure, component or unit described above may be further divided and embodied by multiple components, structures or units.

[0073] In addition, although the various components of the components or devices in the present application and the installation manners between the components are described in a specific order in the drawings, this does not require or imply that the components or devices must be designed according to the specific components or installation manners between the components, or that all the shown components must be included to achieve the desired results. Additionally or alternatively, some components may be omitted, multiple components may be combined into one component to achieve the corresponding function, and / or one component may be decomposed into multiple components to achieve the corresponding function, etc.

[0074] Although the present application is disclosed above with preferred embodiments, it is not used to limit the present application. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application should be subject to the scope defined by the claims of the present application.

Claims

1. A safety airbag, characterized in that: include: A first air bag (11) and a second air bag (12), wherein the second air bag (12) is connected to a first side of the first air bag (11), and the first air bag (11) and the second air bag (12) are connected via a connecting passage; the second side of the first air bag (11) is used for installation on an air bag installation position of a vehicle, and the second side is opposite to the first side; When the safety airbag is installed on the airbag installation position and is in an inflated and deployed state, the second airbag (12) is used to face the frontal position of the head and chest of the occupant to be protected, so as to provide frontal cushioning protection for the head and chest of the occupant to be protected.

2. The airbag according to claim 1, characterized in that: The safety airbag is used to provide buffer protection to the front of passengers on the rear seats (30), and the airbag installation position is arranged on the backrest of the seat (20) in front of the rear seats (30).

3. The airbag according to claim 2, characterized in that: The height of the first airbag (11) is higher than that of the second airbag (12), and the second airbag (12) is close to the top of the first airbag (11). When the safety airbag is installed on the airbag installation position and is in an inflated and deployed state, the portion of the first airbag (11) that is not opposite to the second airbag (12) is used to be opposite to the front position of the legs of the occupant to be protected, so as to provide frontal cushioning protection for the legs of the occupant to be protected.

4. The airbag according to claim 2, characterized in that: The height of the second airbag (12) is higher than that of the first airbag (11), the first airbag (11) is close to the lower part of the second airbag (12), and the airbag mounting position is arranged at the middle and lower part of the backrest of the front row of seats (20).

5. The airbag according to claim 1, characterized in that: The first air bag (11) and the second air bag (12) form a gourd-shaped whole.

6. The airbag according to claim 3, characterized in that: The airbag installation position is located at the lower part of the backrest of the front row of seats (20), and the position adjacent to the lower end of the second side of the first airbag (11) is used for installation on the airbag installation position.

7. The airbag according to claim 1, characterized in that: A gas generator (13) for inflating the safety airbag is fixedly disposed inside the first airbag (11); the gas generator (13) is also used to be installed on the airbag installation position, so that the first airbag (11) can be installed on the airbag installation position through the gas generator (13).

8. A car seat, characterized in that: It comprises a seat and a backrest, wherein an airbag mounting position is provided on the rear side of the backrest, and a safety airbag as claimed in any one of claims 1 to 7 is mounted on the airbag mounting position; When the safety airbag is in an inflated and deployed state, the second airbag (12) of the safety airbag is used to face the frontal position of the head and chest of the occupant on the rear row of seats of the automobile seat, so as to provide frontal cushioning protection for the head and chest of the occupant on the rear row of seats.

9. The vehicle seat according to claim 8, characterized in that: When the gas generator (13) is fixedly arranged in the first air bag (11) of the safety air bag, a mounting bracket is arranged on the frame of the backrest, and the gas generator (13) is fixedly arranged on the mounting bracket.

10. An automobile, characterized in that: An airbag installation position is provided in the automobile, and a safety airbag according to any one of claims 1 to 7 is installed on the airbag installation position; When the safety airbag is in an inflated and deployed state, the second airbag (12) of the safety airbag is opposite to the frontal position of the head and chest of the occupant to be protected, so as to provide frontal cushioning protection for the head and chest of the occupant to be protected.

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