Airbag device and vehicle

Abstract

The application discloses an airbag device and a vehicle, and relates to the field of vehicle safety protection, and comprises an air valve, an airbag, a fixing piece, and at least one restraint assembly, the fixing piece is configured to fix the airbag to the air valve, the air valve is communicated with the airbag and is configured to release gas to the airbag to make the airbag unfold when triggered; the restraint assembly has a restraint state and a release state, the restraint assembly fixes part of the airbag to the air valve when in the restraint state, and the restraint assembly releases the fixation of the airbag when in the release state, and the part of the airbag corresponding to the fixing piece is closer to the open end of the airbag than the part of the airbag corresponding to the restraint assembly. Thus, the application can adjust the state of the restraint assembly to adjust the unfolding area of the airbag, so that the unfolding area of the airbag is adapted to the body shape and driving position of an actual driver, thereby providing adaptive safety protection for drivers with different body shapes and driving positions, and improving the driving safety of the drivers.

Description

Technical Field

[0001] This invention relates to the field of vehicle safety protection, and in particular to an airbag device and a vehicle. Background Technology

[0002] In related technologies, with the increasing number of cars on the road and the rapid development of autonomous driving technology, the field of automotive safety is paying more and more attention to the protection of drivers and passengers. However, the airbag devices of traditional vehicles cannot adjust the deployment area of ​​the airbag according to the actual body shape and actual driving position of the drivers and passengers, making it difficult to provide adaptive safety protection for them and affecting their driving safety. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide an airbag device that enables the airbag deployment area to be adjustable, providing adaptive safety protection for occupants of different body types and driving positions.

[0004] The present invention further proposes a vehicle.

[0005] The airbag device according to the present invention comprises: The air valve, airbag, and fastener are provided, wherein the fastener is configured to fix the airbag to the air valve, the air valve is connected to the airbag and configured to release gas into the airbag to deploy the airbag when triggered. At least one constraint component has a constraint state and a release state. When the constraint component is in the constraint state, it fixes a portion of the airbag to the air valve. When the constraint component is in the release state, it releases the fixation on the airbag. The portion of the airbag corresponding to the fixing component is closer to the open end of the airbag than the portion of the airbag corresponding to the constraint component.

[0006] According to the airbag device of the present invention, the deployment area of ​​the airbag can be adjusted by adjusting the state of the restraint components, so that the deployment area of ​​the airbag is adapted to the body shape and driving position of the actual driver and passenger, thereby providing adaptive safety protection for drivers and passengers of different body shapes and driving positions, and improving the driving safety of drivers and passengers.

[0007] In some examples of the present invention, there are multiple constraint components, and the portions of the airbags corresponding to the multiple constraint components gradually move away from the portions of the airbags corresponding to the fasteners.

[0008] In some examples of the present invention, the constraint component includes: a constraint member and a control structure, the control structure being used to control the constraint member to fix the airbag or release the airbag from fixation.

[0009] In some examples of the present invention, the number of the control structures is multiple.

[0010] In some examples of the present invention, the constraint element is constructed as a ring structure and sleeved on the air valve.

[0011] In some examples of the present invention, the control structure includes: a magnetic core and a coil, the coil being wound around the magnetic core, the magnetic core being configured to generate a magnetic attraction force when the coil is energized to attract the constraint member, so that the constraint member fixes the airbag.

[0012] In some examples of the present invention, the air valve is formed with a plurality of protrusions, the plurality of protrusions are sequentially sleeved, the number of the constraint components is the same as the number of the protrusions and they correspond one-to-one, and the constraint members of the constraint components are used to fix a portion of the airbag to the corresponding protrusion.

[0013] In some examples of the present invention, the boss portion is formed with a plurality of mounting holes arranged around it, and the number of the control structures of the constraint component is the same as the number of the mounting holes of the corresponding boss portion and corresponds one-to-one, and the control structures pass through the corresponding mounting holes.

[0014] In some examples of the present invention, the surface of the boss facing the corresponding constraint member is configured as a mating surface, and the mating surfaces of two adjacent bosses are staggered along a direction perpendicular to the mating surface.

[0015] The vehicle according to the present invention includes: a monitoring system and an airbag device, the airbag device being the airbag device described above, the monitoring system being connected to the airbag device, the monitoring system being configured to identify body posture data and driving / riding position data of occupants, and being configured to control the state of each of the restraint components based on the body posture data and driving / riding position data of the occupants.

[0016] 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. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a partial cross-sectional view of the airbag device according to an embodiment of the present invention; Figure 2 This is a structural schematic diagram of the air valve and constraint member according to an embodiment of the present invention; Figure 3This is a structural schematic diagram of the air valve, constraint member, and fixing member according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the first valve body according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the second valve body according to an embodiment of the present invention.

[0018] Figure label: Airbag device 100; Air valve 1; boss 11; mounting hole 111; mating surface 112; first valve body 12; second valve body 13; vent hole 131; receiving space 14; Airbag 2; Open end 21; Fastener 3; Constraint component 4; constraint element 41; sub-constraint element 413; control structure 42; magnetic core 421; coil 422. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] The following is for reference. Figures 1-5 An airbag device 100 and a vehicle according to an embodiment of the present invention are described.

[0021] like Figure 1 As shown, the airbag device 100 according to an embodiment of the present invention includes: an air valve 1, an airbag 2, a fixing member 3, and at least one restraint component 4. The fixing member 3 is configured to fix the airbag 2 to the air valve 1. The air valve 1 is connected to the airbag 2 and is configured to release gas to the airbag 2 when triggered, so that the airbag 2 can be deployed. The restraint component 4 has a restrained state and a released state. When the restraint component 4 is in the restrained state, it fixes a portion of the airbag 2 to the air valve 1. When the restraint component 4 is in the released state, it releases the fixation of the airbag 2. The portion of the airbag 2 corresponding to the fixing member 3 is closer to the open end 21 of the airbag 2 than the portion of the airbag 2 corresponding to the restraint component 4.

[0022] In this embodiment, the fastener 3 is configured to fix the airbag 2 to the air valve 1. As some embodiments of this application, the fastener 3 can be constructed as a ring structure. The fastener 3 is sleeved on the air valve 1 and fixedly connected to the air valve 1. Part of the airbag 2 is sandwiched between the fastener 3 and the air valve 1 so that the airbag 2 is fixed to the air valve 1.

[0023] As some embodiments of this application, the fastener 3 and the air valve 1 can be interference-fitted, or the fastener 3 and the air valve 1 can be bolted together, but this application is not limited to this, and the fastener 3 and the air valve 1 can also be connected in other ways.

[0024] As some embodiments of this application, the fastener 3 can be made of metal, which helps to improve the structural strength of the fastener 3 and thus enhance the fixation reliability of the airbag 2.

[0025] The air valve 1 is connected to the airbag 2 and is configured to release gas into the airbag 2 when triggered, so that the airbag 2 can be deployed. As some embodiments of this application, the airbag 2 is covered by the air valve 1, the air valve 1 defines a receiving space 14, the receiving space 14 is connected to the airbag 2, and the receiving space 14 is provided with gas-generating fuel. When the air valve 1 is triggered, the gas-generating fuel burns and releases gas into the airbag 2, so that the airbag 2 can be deployed.

[0026] As some embodiments of this application, such as Figure 4 and Figure 5 As shown, the air valve 1 includes a first valve body 12 and a second valve body 13. The first valve body 12 and the second valve body 13 are connected and together define a receiving space 14. The second valve body 13 has a plurality of vent holes 131. The receiving space 14 communicates with the outside through the vent holes 131 so that the air valve 1 communicates with the airbag 2.

[0027] It is understandable that when the air valve 1 is not triggered, the airbag 2 is in a folded state. When the air valve 1 is triggered, the combustion of the gas-producing fuel inside the air valve 1 can release a large amount of gas. The gas flows out from the vent 131 and into the airbag 2 to inflate the airbag 2 and make the airbag 2 unfold.

[0028] As some embodiments of this application, the number of constraint components 4 can be one, or the number of constraint components 4 can be multiple, such as, but not limited to, two, three, four, etc.

[0029] The constraint component 4 has a constraint state and a release state. As some embodiments of this application, the constraint component 4 is electrically connected to the vehicle wiring harness. When the constraint component 4 is energized, it is in the constraint state, and when the constraint component 4 is de-energized, it is in the release state.

[0030] When the restraint component 4 is in a restrained state, a portion of the airbag 2 is fixed to the air valve 1. As some embodiments of this application, a portion of the restraint component 4 can be constructed as a ring structure. The portion of the restraint component 4 is sleeved on the air valve 1 and connected to the air valve 1. A portion of the airbag 2 is sandwiched between the portion of the restraint component 4 and the air valve 1, so that the airbag 2 is fixed to the air valve 1.

[0031] As some embodiments of this application, the constraint assembly 4 includes, as described below, a constraint member 41 and a control structure 42. The control structure 42 is electrically connected to the vehicle wiring harness. The constraint member 41 can be constructed as a ring structure and sleeved on the air valve 1. When the control structure 42 is energized, the constraint assembly 4 is in a constrained state. At this time, the constraint member 41 abuts against the air valve 1, and part of the airbag 2 is sandwiched between the constraint member 41 and the air valve 1 so that the airbag 2 is fixed to the air valve 1.

[0032] When the restraint component 4 is in the released state, the airbag 2 is released. As some embodiments of this application, when the control structure 42 is de-energized, the restraint component 4 is in the released state. At this time, the restraint member 41 separates from the air valve 1 to release the airbag 2.

[0033] The portion of airbag 2 corresponding to fastener 3 is closer to the open end 21 of airbag 2 than the portion of airbag 2 corresponding to restraint assembly 4. This is one example of some embodiments of this application. Figure 1 As shown, the end structure of the airbag 2 is an open end 21. The fastener 3 corresponds to the open end 21 of the airbag 2 and fixes the open end 21 to the air valve 1. Compared with the fastener 3, the restraint component 4 corresponds to the part away from the open end 21 and fixes the part away from the open end 21 to the air valve 1.

[0034] As some embodiments of this application, parts of the airbag 2 are stacked between the fastener 3 and the adjacent restraint assembly 4.

[0035] As some embodiments of this application, there are multiple constraint components 4, and some airbags 2 are stacked between the fastener 3 and adjacent constraint components 4, and between any two adjacent constraint components 4.

[0036] It is understandable that when the constraint component 4 is in the constrained state, the airbag 2 is fixed to the air valve 1 in sequence by the fastener 3 and the constraint component 4. At this time, the deployment area of ​​the airbag 2 is small. When the constraint component 4 is in the released state, the airbag 2 is fixed to the air valve 1 only by the fastener 3. At this time, the deployment area of ​​the airbag 2 is large.

[0037] As some embodiments of this application, the restraint component 4 can be released according to actual needs to release the restraint on the airbag 2, thereby making the deployment area of ​​the airbag 2 adjustable. For example, if the driver / passenger is short and thin, and the driver / passenger position is rearward and low (i.e., far from the airbag device 100), the restraint component 4 can be controlled to be in a released state to increase the deployment area of ​​the airbag 2, so that the airbag 2 contacts the driver / passenger in its most inflated state, thereby providing effective safety protection for the driver / passenger. If the driver / passenger is tall and heavy, and the driver / passenger position is forward and high (i.e., close to the airbag device 100), the restraint component 4 can be controlled to be in a restrained state to reduce the deployment area of ​​the airbag 2 to fit the driver / passenger.

[0038] It should be noted that this application sets at least one restraint component 4, and when the restraint component 4 is in the restrained state, it fixes part of the airbag 2 to the air valve 1. When the restraint component 4 is in the released state, it releases the fixation of the airbag 2. The state of the restraint component 4 can be adjusted according to actual needs, thereby making the deployment area of ​​the airbag 2 adjustable, so that the deployment area of ​​the airbag 2 is adapted to the driver and passengers, thereby providing adaptive safety protection for the driver and passengers and reducing the risk that the protective effect will be affected due to the deployment area of ​​the airbag 2 being too small or too large.

[0039] Therefore, this application can adjust the deployment area of ​​the airbag 2 by adjusting the state of the restraint component 4, so that the deployment area of ​​the airbag 2 is adapted to the body shape and driving position of the actual driver and passenger, thereby providing adaptive safety protection for drivers and passengers of different body shapes and driving positions, and improving the driving safety of drivers and passengers.

[0040] In some embodiments of the present invention, such as Figure 1 As shown, there are multiple constraint components 4, and the portions of the airbag 2 corresponding to the multiple constraint components 4 gradually move away from the portions of the airbag 2 corresponding to the fixing component 3.

[0041] As some embodiments of this application, the number of constraint components 4 may be, but is not limited to, two, three, four, etc.

[0042] The portions of the airbag 2 corresponding to the multiple constraint components 4 gradually move away from the portions of the airbag 2 corresponding to the fastener 3. In other words, the portions of the airbag 2 corresponding to the multiple constraint components 4 gradually move away from the open end 21 of the airbag 2.

[0043] As some embodiments of this application, such as Figure 1 As shown, there are two constraint components 4, and the parts of the airbag 2 corresponding to the two constraint components 4 gradually move away from the parts of the airbag 2 corresponding to the fastener 3.

[0044] Understandably, when there are multiple restraint components 4, the states of the restraint components 4 from those furthest from the open end 21 to those closest to the open end 21 can be adjusted according to actual needs to achieve adjustable deployment area of ​​the airbag 2. For example, if the occupant is short, thin, and sits in a rearward and low position (i.e., far from the airbag device 100), all restraint components 4 can be controlled to be in the released state to increase the deployment area of ​​the airbag 2, allowing the airbag 2 to fully deploy and contact the occupant at its most inflated state, thus improving the protection of the occupant's torso and head and providing effective safety protection. If the occupant is tall, heavy, or has a large build, the airbag 2 can be adjusted to adjust the deployment area of ​​the airbag 2. When the driver's position is forward and high (i.e., relatively close to the airbag device 100), all restraint components 4 can be controlled to be in a restrained state, thereby controlling the deployment area of ​​the airbag 2 to fit the driver and passenger, thus providing effective safety protection for the driver and passenger. If the driver and passenger are of moderate height and build, and the driver's position is in the center, some restraint components 4 can be controlled to be in a released state, while others can be in a restrained state. The portion of the airbag 2 corresponding to the restrained restraint component 4 is closer to the open end 21 of the airbag 2 than the portion of the airbag 2 corresponding to the released restraint component 4, so that the deployment area of ​​the airbag 2 fits the driver and passenger, thus providing effective safety protection for the driver and passenger.

[0045] This configuration allows for step-by-step adjustment of the airbag 2 deployment area by sequentially adjusting the state of the restraint components 4 from the furthest point from the open end 21 to the closest point to the open end 21. This provides adaptive safety protection for occupants of different body types and driving positions, thereby improving the safety of occupants.

[0046] In some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the constraint component 4 includes: a constraint member 41 and a control structure 42. The control structure 42 is used to control the constraint member 41 to fix the airbag 2 or to release the fixation of the airbag 2.

[0047] Specifically, when the restraint component 4 is in the restrained state, the control structure 42 controls the restraint member 41 to fix the airbag 2, and when the restraint component 4 is in the released state, the control structure 42 controls the restraint member 41 to release the fixation of the airbag 2.

[0048] As some embodiments of this application, the control structure 42 can be electrically connected to the vehicle wiring harness. When the control structure 42 is energized, the control constraint member 41 fixes the airbag 2, and when the control structure 42 is de-energized, the control constraint member 41 releases the fixation of the airbag 2. For example, the control structure 42 may include: a magnetic core 421 and a coil 422. The coil 422 is wound around the magnetic core 421. The magnetic core 421 is configured such that when the coil 422 is energized, it generates a magnetic attraction force to attract the constraint member 41, so that the constraint member 41 fixes the airbag 2.

[0049] As some embodiments of this application, the control structure 42 may include: at least one motor connected to the constraint member 41, and the motor configured to compress the constraint member 41 to fix the airbag 2, and the motor further configured to release the constraint member 41 to release the fixation of the airbag 2. The motor may compress or release the constraint member 41 directly or through other components. For example, the motor may be configured as a telescopic motor, compressing or releasing the constraint member 41 by extending or retracting the motor shaft to fix or release the airbag 2. Specifically, the motor is located on the side of the constraint member 41 away from the fixed airbag 2, and the motor shaft is connected to the constraint member 41. When the motor shaft extends, it can push the constraint member 41 to compress the airbag 2, fixing the airbag 2 to the air valve 1. When the motor shaft retracts, it can move the constraint member 41 away from the air valve 1 to release the fixation of the airbag 2.

[0050] This design allows the constraint component 4 to be structurally compact, facilitating precise control of the constraint component 41 to fix or release the airbag 2 via the control structure 42, thereby enabling stepwise adjustment of the airbag 2's deployment area.

[0051] In some embodiments of the present invention, such as Figure 1 As shown, there are multiple control structures 42.

[0052] As some embodiments of this application, the number of control structures 42 may be, but is not limited to, eight, ten, twelve, etc., and multiple control structures 42 may correspond to the constraint members 41 of the same constraint component 4.

[0053] By setting multiple control structures 42, the control effect on the constraint member 41 can be effectively improved, thereby enhancing the fixation reliability of the airbag 2, reducing the risk of the airbag 2 having an excessively large deployment area due to the airbag 2 not being securely fixed, and improving the working reliability of the airbag device 100.

[0054] In some embodiments of the present invention, such as Figure 2 As shown, the constraint member 41 is constructed as a ring structure and is sleeved on the air valve 1.

[0055] As some embodiments of this application, the constraint member 41 may include: a plurality of sub-constraint members 413, such as, but not limited to, two, three, four, etc., the plurality of sub-constraint members 413 being arranged circumferentially to form a ring structure, with adjacent sub-constraint members 413 abutting or connecting. For example, as Figure 2 As shown, there are two sub-constraints 413, which are arranged circumferentially to form a ring structure.

[0056] This configuration allows the constraint member 41 to have a reasonable structure, making it easy for the constraint member 41 to cooperate with the air valve 1 to fix the airbag 2 to the air valve 1. In addition, it can increase the fixing area of ​​the airbag 2, further improve the fixing reliability of the airbag 2, reduce the risk of over-deployment of the airbag 2, and significantly improve the working reliability of the airbag device 100.

[0057] In some embodiments of the present invention, such as Figure 1 As shown, the control structure 42 includes a magnetic core 421 and a coil 422. The coil 422 is wound around the magnetic core 421. The magnetic core 421 is configured to generate a magnetic attraction force when the coil 422 is energized, so as to attract the constraint member 41 and fix the airbag 2.

[0058] As some embodiments of this application, the number of magnetic cores 421 and coils 422 can be multiple and correspond one-to-one.

[0059] As some embodiments of this application, the number of magnetic cores 421 and coils 422 in a constraint component 4 can be twelve and correspond one-to-one. The coils 422 are wound around the corresponding magnetic cores 421. The magnetic cores 421 can be made of boron steel with a diameter of 6 mm. The coils 422 have a diameter of 0.5 mm. Each magnetic core 421 is wound with 45 turns of coil 422. The current of coil 422 is 3A. Multiple coils 422 are connected in series. When coil 422 is energized, it can provide a magnetic attraction force of 12660N to the constraint component 41.

[0060] This configuration allows the constraint member 41 to fix the airbag 2 via electromagnetic adsorption, resulting in a sensitive response and a secure fixation. This enables reliable fixation and rapid release of the airbag 2, which helps improve the operational reliability of the airbag device 100.

[0061] In some embodiments of the present invention, such as Figures 1-4 As shown, the air valve 1 has multiple protrusions 11, which are sequentially fitted together. The number of the constraint components 4 is the same as that of the protrusions 11 and they correspond one-to-one. The constraint members 41 of the constraint components 4 are used to fix a part of the airbag 2 to the corresponding protrusion 11.

[0062] Multiple bosses 11 are sequentially fitted together. As some embodiments of this application, the number of bosses 11 can be, but is not limited to, two, three, four, etc. Multiple bosses 11 are sequentially fitted together from the outside to the inside along the radial direction of the air valve 1.

[0063] The number of constraint components 4 and bosses 11 are the same and correspond one-to-one. As some embodiments of this application, the number of constraint components 4 and bosses 11 can be, but is not limited to, two, three, four, etc., and each constraint component 4 corresponds to one boss 11.

[0064] The constraint member 41 of the constraint assembly 4 is used to fix a portion of the airbag 2 to the corresponding boss portion 11. As some embodiments of this application, the constraint member 41 cooperates with the upper surface of the corresponding boss portion 11, and a portion of the airbag 2 is located between the lower surface of the constraint member 41 and the upper surface of the corresponding boss portion 11. The control structure 42 can clamp a portion of the airbag 2 between the constraint member 41 and the corresponding boss portion 11 to fix a portion of the airbag 2 to the corresponding boss portion 11.

[0065] This arrangement facilitates the assembly of multiple constraint members 41 with multiple bosses 11, reduces the assembly difficulty of constraint members 41, and helps improve the assembly efficiency of airbag device 100.

[0066] In some embodiments of the present invention, such as Figure 4 As shown, the boss portion 11 has a plurality of mounting holes 111 arranged around it. The number of control structures 42 of the constraint component 4 is the same as the number of mounting holes 111 of the corresponding boss portion 11 and corresponds one-to-one. The control structures 42 pass through the corresponding mounting holes 111.

[0067] As some embodiments of this application, the number of control structures 42 of the constraint component 4 and the number of mounting holes 111 of the corresponding boss portion 11 can both be multiple, such as but not limited to eight, ten, twelve, etc., and each control structure 42 corresponds to a mounting hole 111 of the corresponding boss portion 11.

[0068] The control structure 42 passes through the corresponding mounting hole 111. As some embodiments of this application, a portion of the control structure 42 passes through the corresponding mounting hole 111.

[0069] This configuration provides mounting points for the control structure 42, enabling reliable assembly of the control structure 42. It helps reduce the assembly difficulty of the control structure 42, further improving the assembly efficiency of the airbag device 100. Furthermore, it can shorten the interval between the control structure 42 and the corresponding constraint member 41, improving the control effect of the control structure 42 on the corresponding constraint member 41, thereby enhancing the fixation reliability of the airbag 2 and improving the working reliability of the airbag device 100.

[0070] In some embodiments of the present invention, such as Figure 1 As shown, the surface of the boss portion 11 facing the corresponding constraint member 41 is constructed as a mating surface 112, along the direction perpendicular to the mating surface 112 (i.e. Figure 1 , Figure 2 , Figure 3 (As shown in the Z direction), the mating surfaces 112 of two adjacent bosses 11 are staggered.

[0071] As some embodiments of this application, a portion of the airbag 2 is located between the corresponding mating surface 112 and the corresponding constraint member 41.

[0072] By staggering the mating surfaces 112 of adjacent bosses 11, it is easier to assemble the corresponding constraint parts 41, reducing the risk of interference when assembling multiple constraint parts 41. Furthermore, the constraint parts 41 can be guided and positioned by the side surfaces of adjacent bosses 11, so that the constraint parts 41 can be quickly installed in place, effectively reducing the assembly difficulty of the airbag device 100.

[0073] According to an embodiment of the present invention, a vehicle includes a monitoring system and an airbag device 100, wherein the airbag device 100 is the airbag device 100 described above, the monitoring system is connected to the airbag device 100, the monitoring system is configured to identify the body posture data and driving position data of the occupants, and is configured to control the state of each restraint component 4 based on the body posture data and driving position data of the occupants.

[0074] As some embodiments of this application, the monitoring system is communicatively connected to the airbag device 100 (wired or wireless connection). The monitoring system is able to identify the body posture data and driving position data of the occupants, and control the state of each restraint component 4 based on the body posture data and driving position data of the occupants.

[0075] As some embodiments of this application, the monitoring system may include a camera and a controller. The controller is communicatively connected (wired or wirelessly) to the camera and the airbag device 100. The camera can collect the body posture data and driving position data of the driver and passengers, and transmit the body posture data and driving position data to the controller. The controller can control the state of each restraint component 4 according to the body posture data and driving position data.

[0076] As some embodiments of this application, the monitoring system is able to control whether the control structure 42 of each constraint component 4 is energized or not.

[0077] Therefore, this application can adjust the deployment area of ​​the airbag 2 by adjusting the state of the restraint component 4, so that the deployment area of ​​the airbag 2 is adapted to the body shape and driving position of the actual driver and passenger, thereby providing adaptive safety protection for drivers and passengers of different body shapes and driving positions, and improving the driving safety of drivers and passengers.

[0078] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0079] In the description of this invention, "first feature" and "second feature" may include one or more of the features.

[0080] In the description of this invention, "a plurality of" means two or more.

[0081] In the description of this invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0082] In the description of this invention, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0083] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0084] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An airbag device, characterized in that, include: The air valve, airbag, and fastener are provided, wherein the fastener is configured to fix the airbag to the air valve, the air valve is connected to the airbag and configured to release gas into the airbag to deploy the airbag when triggered. At least one constraint component has a constraint state and a release state. When the constraint component is in the constraint state, it fixes a portion of the airbag to the air valve. When the constraint component is in the release state, it releases the fixation on the airbag. The portion of the airbag corresponding to the fixing component is closer to the open end of the airbag than the portion of the airbag corresponding to the constraint component.

2. The airbag device according to claim 1, characterized in that, There are multiple constraint components, and the portions of the airbags corresponding to the multiple constraint components gradually move away from the portions of the airbags corresponding to the fixing members.

3. The airbag device according to claim 1, characterized in that, The constraint assembly includes: a constraint member and a control structure, wherein the control structure is used to control the constraint member to fix the airbag or release the airbag from fixation.

4. The airbag device according to claim 3, characterized in that, The number of control structures is multiple.

5. The airbag device according to claim 3, characterized in that, The constraint element is constructed in a ring shape and is sleeved on the air valve.

6. The airbag device according to claim 3, characterized in that, The control structure includes a magnetic core and a coil, the coil being wound around the magnetic core, and the magnetic core being configured to generate a magnetic attraction force when the coil is energized to attract the constraint member, so that the constraint member fixes the airbag.

7. The airbag device according to claim 6, characterized in that, The air valve has multiple protrusions, which are sequentially fitted together. The number of the constraint components is the same as the number of protrusions and they correspond one-to-one. The constraint members of the constraint components are used to fix a portion of the airbag to the corresponding protrusion.

8. The airbag device according to claim 7, characterized in that, The boss portion has a plurality of mounting holes arranged around it. The number of control structures of the constraint assembly is the same as the number of mounting holes of the corresponding boss portion and corresponds one-to-one. The control structures pass through the corresponding mounting holes.

9. The airbag device according to claim 7, characterized in that, The surface of the boss facing the corresponding constraint member is configured as a mating surface, and the mating surfaces of two adjacent bosses are staggered along a direction perpendicular to the mating surface.

10. A vehicle, characterized in that, include: A monitoring system and an airbag device, wherein the airbag device is the airbag device according to any one of claims 1-9, the monitoring system is connected to the airbag device, the monitoring system is configured to identify the body posture data and driving position data of the occupants, and is configured to control the state of each of the restraint components according to the body posture data and driving position data of the occupants.

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