Airbag mechanism and vehicle

Abstract

The utility model provides a safety air bag mechanism and a vehicle, and the safety air bag mechanism comprises a storage box which is provided with a storage cavity; the holding assembly is located in the storage cavity, the holding assembly comprises a holding frame and a holding box, the holding box is located on the inner side of the holding frame and connected with the holding frame, an air guide cavity is formed in the holding box, the side wall of the air guide cavity extends in the height direction of the safety airbag mechanism, and the air guide cavity communicates with the storage cavity; the air bag is partially limited between the inner wall of the storage cavity and the retaining frame, the air bag is stored in the storage cavity, and the storage cavity and the air guide cavity are sealed on one side in the height direction; the air outlet assembly is located in the air guide cavity, air outlet holes are formed in the periphery of the air outlet assembly, the air outlet holes face the side wall of the air guide cavity, the air outlet assembly is used for spraying air through the air outlet holes, and the side wall of the storage cavity is used for guiding the air to flow in the height direction and inflating the air bag.

Description

Technical Field

[0001] This application relates to the technical field of automobiles, and more particularly to an airbag mechanism and vehicle. Background Technology

[0002] Cars typically have an airbag system installed inside. When a car accident occurs, the airbag can inflate and enter the cavity where the occupants are located. The airbag can support the occupants' bodies to enhance their safety.

[0003] Currently, airbag mechanisms typically use an air outlet assembly to inflate the airbag, allowing it to expand. Before inflating, the airbag is covered by the air outlet assembly. When the air outlet assembly operates, it blows high-temperature gas into the airbag. Some parts of the airbag are continuously subjected to high-temperature gas before inflating, which can cause them to be charred or melted, resulting in a risk of air leakage due to structural damage. Utility Model Content

[0004] In view of this, an airbag mechanism and vehicle are provided that can reduce the occurrence of various parts of the airbag being continuously subjected to high-temperature gas, thereby reducing the risk of airbag leakage.

[0005] In a first aspect, this application provides an airbag mechanism, comprising: a storage box with a storage cavity; a retaining assembly located within the storage cavity, the retaining assembly including a retaining frame and a retaining box, the retaining box being located inside the retaining frame and connected to the retaining frame, the retaining box having an air guiding cavity, the sidewall of the air guiding cavity extending along the height direction of the airbag mechanism, the air guiding cavity communicating with the storage cavity; an airbag partially confined between the inner wall of the storage cavity and the retaining frame, the airbag being stored within the storage cavity, and the storage cavity and the air guiding cavity being closed on one side in the height direction; and an air outlet assembly located within the air guiding cavity, the air outlet assembly having an air outlet hole on its periphery, the air outlet hole being disposed towards the sidewall of the air guiding cavity, the air outlet assembly being used to eject gas through the air outlet hole, the sidewall of the storage cavity being used to guide the gas to flow in the height direction and to inflate the airbag.

[0006] Optionally, in the height direction, the top of the box is kept higher than the top of the air outlet assembly.

[0007] Optionally, in the height direction, the top of the retaining frame is higher than the top of the retaining box, and the top of the retaining frame is lower than the top of the storage box.

[0008] Optionally, in the width direction of the airbag mechanism, the distance between the retaining box and the first side of the storage box is greater than the distance between the retaining box and the second side of the storage box, and the distance between the air venting component and the first side of the storage box is greater than the distance between the air venting component and the second side of the storage box; wherein, the first side and the second side are two opposite sides in the width direction, and the first side of the storage box is used to be close to the person.

[0009] Optionally, the retaining box surrounds the outside of the air outlet assembly, and there are multiple air outlets, at least some of which are spaced apart along the direction surrounding the air outlet assembly. Each air outlet is used to spray gas out of the corresponding side wall in the air guide chamber, so that the gas is guided to the air bag.

[0010] Optionally, a first through hole is provided at the bottom of the storage box, and a second through hole is provided at the bottom of the box. The first through hole and the second through hole correspond to and communicate with each other. The gas venting component includes a gas generator and a mounting component. The gas generator is disposed on the mounting component and passes through the first through hole and the second through hole. The mounting component is connected to the bottom of the storage box.

[0011] Optionally, the airbag mechanism also includes: multiple connectors, all of which are connected to the bottom of the retaining box, the bottom of the storage box, and the mounting component to secure the storage box, the retaining component, and the air venting component.

[0012] Optionally, the airbag mechanism further includes: a first mounting bracket, which is located at the bottom of the storage box and connected to the storage box via multiple connectors, and is used to connect to the vehicle body.

[0013] Optionally, the airbag mechanism further includes a second mounting bracket, which is connected to the side of the storage box and is used to connect to the vehicle body.

[0014] Secondly, this application provides a vehicle, including: a vehicle body; and an airbag mechanism as described in any of the above claims, wherein the airbag mechanism is disposed on the vehicle body.

[0015] The airbag mechanism and vehicle provided in this application allow the sidewall of the air chamber to block the high-temperature gas from the outlet from blowing towards the top of the airbag while simultaneously blocking the gas from the direction perpendicular to the height. This reduces the occurrence of high-temperature gas directly hitting parts of the airbag away from the top, thereby reducing the likelihood of parts of the airbag being scorched or melted due to continuous exposure to high-temperature gas. This lowers the probability of airbag leakage and improves personnel safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the vehicle in an embodiment of this application.

[0017] Figure 2 This is a schematic diagram of the airbag mechanism after the airbag has inflated, as shown in the embodiments of this application.

[0018] Figure 3 This is a partial structural diagram of the airbag mechanism in an embodiment of this application.

[0019] Figure 4 This is a partial structural disassembly diagram of the airbag mechanism in the embodiments of this application.

[0020] Figure 5 This is a schematic diagram of the structure of the storage box and the second mounting bracket in the embodiments of this application.

[0021] Figure 6 This is a schematic diagram of the structure of the retaining components and connectors in the embodiments of this application.

[0022] Figure 7 This is a schematic diagram of the air outlet component in an embodiment of this application.

[0023] Figure 8 This is a partial cross-sectional view of the airbag mechanism in an embodiment of this application.

[0024] Figure 9 This is a schematic diagram of the structure of the first mounting bracket in the embodiment of this application.

[0025] Explanation of key component symbols:

[0026] 100. Vehicle; 101. Vehicle body; 1011. Cabin space; 102. Airbag mechanism; 10. Airbag; 20. Storage box; 21. Storage cavity; 22. First through hole; 30. Retaining assembly; 31. Retaining frame; 32. Retaining box; 321. Air guide cavity; 322. Second through hole; 33. Connecting plate; 40. Air outlet assembly; 41. Gas generator; 411. Air outlet; 42. Mounting component; 50. Connecting component; 60. First mounting bracket; 61. Clearance opening; 70. Second mounting bracket. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] In the description of this application, it should be understood that the terms "upper," "lower," "inner," "outer," "side," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the equipment or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] Some embodiments will now be described with reference to the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0031] The airbag system in a car includes an airbag for inflating to protect occupants, a storage box for holding the uninflated airbag, and a gas generator for inflating the airbag. The gas generator can be installed inside the storage box, and the edge of the airbag can be fixed inside the storage box. The airbag can cover the top of the storage box and the gas generator. Before inflating, the airbag can be compressed within the storage box. When the gas generator operates, it blows out high-temperature gas that is higher than the temperature inside the car cabin. This high-temperature gas inflates the airbag, causing it to expand and enter the car cabin to protect the occupants.

[0032] When the gas generator is operating, certain parts of the gas bag (such as the area near the edge of the gas bag) are continuously exposed to high-temperature gas before inflation. These parts of the gas bag, continuously exposed to high-temperature gas, may char or melt, leading to gas leakage. Gas leakage prevents the gas bag from inflating promptly, failing to provide immediate protection for the occupants and compromising their safety.

[0033] This application provides an airbag mechanism and a vehicle. The airbag mechanism applied to a vehicle allows the gas to come into contact with structural components outside the airbag before flowing to the airbag, and guides the gas in the direction closer to the person. This increases the speed at which the airbag inflates toward the person while reducing the occurrence of any part of the airbag being subjected to high-temperature gas flowing from the gas generator for a long time, reducing the probability of airbag leakage and improving the safety of people inside the vehicle.

[0034] Please see Figure 1 and Figure 2 , Figure 1 An embodiment of this application provides a vehicle 100. Figure 2 An airbag mechanism 102 provided by an embodiment of this application is shown.

[0035] In one embodiment, the vehicle 100 may include a vehicle body 101 and an airbag system 102. The vehicle body 101 may have a cabin space 1011, into which occupants can enter to ride or drive the vehicle 100. The airbag system 102 may be fixedly mounted on the vehicle body 101 and located outside the cabin space 1011. The airbag system 102 may include an airbag 10. When the vehicle 100 is involved in a collision, the airbag system 102 may operate to inflate the airbag 10. The inflated airbag 10 can enter the cabin space 1011 and abut against the occupants' bodies to cushion the impact transmitted to the cabin space 1011 due to the collision, thereby protecting the safety of the occupants.

[0036] In the embodiments of this application, the type of vehicle 100 is not specifically limited. For example, vehicle 100 may be, but is not limited to, a passenger car, a truck, or an ambulance.

[0037] The working principle of the airbag mechanism 102 triggered by the collision of vehicle 100 is a general principle in the relevant field and will not be elaborated here.

[0038] In the embodiments of this application, the installation position of the airbag mechanism 102 on the vehicle body 101 is not specifically limited. For example, the airbag mechanism 102 can be installed on the front side of the vehicle body 101, and when the airbag mechanism 102 is activated, the airbag 10 can inflate to the driver's or passenger's position in the cabin space 1011.

[0039] Please refer to the following: Figure 3 and Figure 4 The width, length, and height directions of the airbag mechanism 102 can be defined as the first direction, the second direction, and the third direction, respectively. For example, the first direction can be... Figure 3 and Figure 4 The X direction and its opposite direction are shown; the second direction can be... Figure 3 and Figure 4 The Y-direction and its opposite direction are shown; the third direction can be... Figure 3 and Figure 4 The Z direction and its opposite direction are shown.

[0040] The vehicle has a first side and a second side arranged opposite to each other in the first direction. The airbag mechanism 102 is installed behind the vehicle body 101. The first side of the airbag mechanism 102 is the side closer to the passenger compartment 1011, i.e., the side facing the occupants; the second side is the side farther away from the passenger compartment 1011. For example, the first side could be... Figure 3 and Figure 4 The side to which the X-arrow points, the second side can be... Figure 3 and Figure 4 The side opposite to the X-shaped arrow.

[0041] The airbag 10 has a top and a bottom that are relatively positioned opposite each other in the third direction. After inflating, the airbag 10 can extend from the top of the airbag mechanism 102 and enter the cabin space 1011. For example, the top can be... Figure 3 and Figure 4 The part pointed to by the middle Z arrow can be at the bottom. Figure 3 and Figure 4 The part that is opposite to the Z-arrow.

[0042] Please refer to the following: Figures 5 to 7 In some embodiments, the airbag mechanism 102 may also include a storage box 20, a retaining component 30, and an air delivery component 40.

[0043] The storage box 20 has a storage cavity 21, and the top of the storage box 20 is open. The storage cavity 21 can hold the uninflated air bag 10.

[0044] The retaining component 30 can be located within the storage cavity 21 and can be fixedly installed on the bottom wall of the storage cavity 21. The retaining component 30 can include a retaining frame 31, a retaining box 32, and a connecting plate 33. The retaining frame 31 can enclose a space with a rectangular cross-section. The retaining frame 31 can cooperate with the storage box 20 to restrict the edge or near the edge of the air bag 10 between the retaining frame 31 and the inner wall of the storage cavity 21, thereby fixing the air bag 10 to the storage box 20. The retaining box 32 can be located within the storage cavity 21, and an air guiding cavity 321 can be formed in the retaining box 32, with an opening at the top. The cross-section of the air guiding cavity 321 can be rectangular, and the air guiding cavity 321 communicates with the storage cavity 21; the air bag 10 can be located outside the air guiding cavity 321. The connecting plate 33 can be fixedly connected to the first side of the retaining box 32 and is located outside the retaining cavity. The connecting plate 33 can be fixedly connected to the retaining frame 31, and the connecting plate 33 can be attached to the bottom wall of the storage cavity 21.

[0045] The storage box 20 has a first through hole 22 at its bottom, which communicates with the storage cavity 21. The retaining box 32 has a second through hole 322 at its bottom, which corresponds to and communicates with the first through hole 22, and also communicates with the air guide cavity 321. The air outlet assembly 40 can extend from the bottom of the storage box 20 into the air guide cavity 321 through the first through hole 22 and the second through hole 322, and the air outlet assembly 40 can be fixedly connected to the storage box 20.

[0046] The venting assembly 40 may have multiple vent holes 411 around its periphery. Some of the vent holes 411 may be spaced apart along the direction surrounding the venting assembly 40, and some may be spaced apart along a third direction. Each vent hole 411 is positioned facing a corresponding sidewall inside the air guiding cavity 321. When the venting assembly 40 is working, high-temperature gas can be ejected through the vent holes 411. The high-temperature gas can be sprayed onto the sidewall of the air guiding cavity 321 and flows from the top of the sidewall to the top of the sidewall along the extension direction of the sidewall, thereby blowing air into the air bag 10 and causing the air bag 10 to inflate.

[0047] It is understood that when the airbag mechanism 102 is assembled, the uninflated airbag 10 is stored in the storage cavity 21. At this time, the top of the airbag 10 covers the inflation assembly and the retaining box 32, and the other parts of the airbag 10 can be stacked in the storage cavity 21. When the inflation assembly is working, the high-temperature gas ejected by the inflation assembly is guided by the side wall of the air guide cavity 321 extending in the third direction and finally blows towards the top of the airbag 10. The gas can inflate the airbag 10, making the top of the airbag 10 move away from the storage box 20. At the same time, the gas continuously flows into the space between the top of the airbag 10 and the air outlet assembly 40, thereby inflating the airbag 10 so that the airbag 10 can gradually inflate in the direction closer to the person and enter the cabin space 1011. Thus, compared to the situation where the gas is not guided to the top of the airbag 10 by the retaining box 32, but instead the high-temperature gas is directly sprayed out in a direction perpendicular to a third direction (e.g., the first direction, the second direction, the direction forming an acute angle with the first direction, and the direction forming an acute angle with the second direction) to the part of the airbag 10 stacked in the storage cavity 21, thereby inflating the airbag 10 by filling it, in the embodiment of this application, the gas is guided by the side wall of the air guide cavity 321 so that the gas can directly blow the top of the airbag 10 to move away from the storage box 20, and drive the part of the airbag 10 stacked in the storage cavity 21 to move synchronously to get closer to the personnel. Combined with the filling effect of the gas on the airbag 10, the speed at which the airbag 10 expands in the direction closer to the personnel can be increased, so that the airbag 10 can quickly expand into the cabin space 1011 and come into contact with the personnel when the vehicle 100 collides, thereby strengthening the protection of the personnel and improving the safety of the personnel.

[0048] Meanwhile, without the retaining box 32 to guide the high-temperature gas ejected from the vent 411, the high-temperature gas ejected from the vent 411 in a direction perpendicular to the third direction may continuously blow onto the part of the air bag 10 away from the top of the air bag 10. Since the part of the air bag 10 away from the top of the air bag 10 moves out of the storage cavity 21 relatively late during the inflation process, this part will continuously be subjected to high-temperature gas, posing a risk of scorching or melting due to the high-temperature gas. In the embodiment of this application, while guiding the high-temperature gas towards the top of the air bag 10 through the side wall of the air guiding cavity 321, the high-temperature gas is blocked in a direction perpendicular to the third direction, reducing the occurrence of high-temperature gas directly spraying onto the part of the air bag 10 away from the top of the air bag 10 in a direction perpendicular to the third direction. This reduces the occurrence of parts of the air bag 10 being scorched or melted due to continuous exposure to high-temperature gas, thereby reducing the probability of air bag 10 leakage and improving personnel safety.

[0049] In the embodiments of this application, the method of confining the air bag 10 between the retaining frame 31 and the inner wall of the receiving cavity 21 is not specifically limited. For example, the edge or near the edge of the air bag 10 may be bonded and fixed to the side wall and / or bottom wall of the receiving cavity 21, and located in the gap between the inner wall of the receiving cavity 21 and the retaining frame 31.

[0050] For example, the retaining frame 31 can cooperate with the inner wall of the storage cavity 21 to clamp the edge or near the edge of the air bag 10, so as to fix the air bag 10 to the storage box 20 and restrict the movement of the air bag 10.

[0051] In the embodiments of this application, the retaining box 32 has two side plates arranged opposite each other in a first direction and two side plates arranged opposite each other in a second direction. The four side plates can be fixedly connected and can cooperate to form the four side walls of the air guiding cavity 321. The four side walls can block the air outlet assembly 40 from the opposite sides in the first direction and the opposite sides in the second direction, so that the retaining box 32 can surround the outside of the air outlet assembly 40. This allows the retaining box 32 to block the high-temperature gas ejected in a direction perpendicular to a third direction (e.g., the first direction, the second direction, the direction forming an acute angle with the first direction, and the direction forming an acute angle with the second direction), and guide all the high-temperature gas to be ejected towards the top of the air bag 10 in a third direction. The tops of the four side plates of the retaining box 32 are flat, so that the tops of the four side walls of the air guiding cavity 321 are flat.

[0052] Thus, by surrounding the gas outlet assembly 40 with the retaining box 32 and by reducing the notch on the retaining box 32, the barrier to high-temperature gas can be strengthened. This increases the expansion speed of the gas bag 10 while guiding the gas towards the top of the gas bag 10, and reduces the occurrence of gas leakage due to scorching or melting on the gas bag 10.

[0053] In the embodiments of this application, no specific limitation is made on the fixing method during fixed connection and fixed installation. For example, the specified method may include, but is not limited to, bolt fixing, welding fixing, integral molding fixing, and interference fixing.

[0054] In the embodiments of this application, the structure of the retaining frame 31 is not specifically limited. For example, as Figure 3 and Figure 6 As shown, the retaining frame 31 has through grooves on the two side walls that are opposite each other in the first direction and the two side walls that are opposite each other in the second direction, so that the four side walls of the retaining frame 31 are all rectangular rings; when the air bag 10 is stored in the storage cavity 21, it can be partially stored in the through grooves of the retaining frame 31.

[0055] For example, the two sidewalls of the retaining frame 31 that are arranged opposite each other in the first direction and the two sidewalls that are arranged opposite each other in the second direction can both be complete rectangular plates.

[0056] In the embodiments of this application, the positional relationship between the connecting plate 33 and the retaining frame 31 is not specifically limited. For example, the bottom surface of the connecting plate 33 may be flush with the bottom surfaces of the retaining frame 31 and the retaining box 32. When the edge of the air bag 10 is sandwiched between the bottom wall of the storage box 20 and the bottom of the retaining frame 31, the connecting plate 33 may cooperate with the retaining frame 31 to abut against the edge of the air bag 10, thereby strengthening the connection between the air bag 10 and the storage box 20.

[0057] In some embodiments, the top of the retaining box 32 may be higher than the top of the air outlet assembly 40, that is, the top of each side wall of the air guide cavity 321 is higher than the top of the air outlet assembly 40, so that the positions of all the air outlet holes 411 on the air outlet assembly 40 are located within the air guide cavity 321, so that the gas ejected from each air outlet hole 411 can be blocked by the side wall of the air guide cavity 321.

[0058] The top of the retaining frame 31 is higher than the top of the retaining box 32, and the top of the retaining frame 31 is lower than the top of the storage box 20. This ensures that the retaining box 32 is completely within the space formed by the retaining frame 31 and completely within the storage cavity 21. This prevents the top of the retaining box 32 from protruding beyond the top of the storage box 20, reducing friction between the retaining box 32 and the top of the airbag 10, and reducing the likelihood of the airbag 10 being stretched taut against the top of the retaining box 32. This reduces the probability of damage to the airbag 10, lowers the risk of air leakage, and improves personnel safety.

[0059] Please refer to the following: Figure 8In some embodiments, the distance between the retaining box 32 and the first side of the storage box 20 can be greater than the distance between the retaining box 32 and the second side of the storage box 20, and the distance between the venting component 40 and the first side of the storage box 20 can be greater than the distance between the venting component 40 and the second side of the storage box 20.

[0060] Understandable, such as Figure 2 As shown, the inflated airbag 10 can be irregularly shaped, and the first side of the inflated airbag 10 can have a protrusion for contacting personnel to protect the personnel inside the cabin space 1011.

[0061] The first side of the storage box 20 is closer to the personnel, and the second side is farther away from the personnel. The retaining box 32 and the air outlet assembly 40 are positioned closer to the first side of the storage box 20, which allows the gas blown from the retaining box 32 to flow towards the first side of the top of the air bag 10, thereby increasing the inflation speed of the protruding part on the first side of the air bag 10. This ensures that the protruding part of the air bag 10 can promptly come into contact with the personnel to protect them and improve their safety.

[0062] In some embodiments, such as Figure 7 As shown, the gas outlet assembly 40 may include a gas generator 41 and a mounting member 42. The gas generator 41 is cylindrical, with multiple air holes formed on its periphery. The mounting member 42 can be fixedly connected to the periphery of the gas generator 41. The gas generator 41 can enter the air guide cavity 321 through the first through hole 22 and the second through hole 322, while keeping the top of the box 32 higher than the top of the gas generator 41. The mounting member 42 can be located at the bottom of the storage box 20.

[0063] like Figure 6 As shown, the airbag mechanism 102 may further include multiple connectors 50. These connectors 50 may sequentially pass through the bottom of the retaining box 32, the bottom of the storage box 20, and the mounting member 42 along a third direction, and be fixed to the retaining box 32, the storage box 20, and the mounting member 42. Some of the connectors 50 may be spaced apart along a first direction, and some may be spaced apart along a second direction. The connectors 50 are arranged to avoid contact with the first through hole 22, the second through hole 322, and the gas generator 41.

[0064] In some cases, the gas generator 41 can be fixedly mounted on top of the mounting member 42. In other cases, the gas generator 41 can pass through the mounting member 42, the periphery of the gas generator 41 can be fixedly connected to the mounting member 42, and the bottom end of the gas generator 41 can protrude from the bottom of the mounting member 42, and all the gas outlets 411 are located between the top of the gas generator 41 and the top of the mounting member 42.

[0065] It is understood that multiple connectors 50 can simultaneously fix the retaining box 32 and the storage box 20, as well as the mounting part 42 and the storage box 20, thereby simultaneously connecting the storage box 20, the retaining component 30 and the air venting component 40.

[0066] For example, the connector 50 can be a bolt, and there can be four connectors 50. The cross-section of the mounting piece 42 can be a rectangular plate, and the bottom wall of the air guide cavity 321 can also be a rectangular plate. The four connectors 50 can pass through the four corners of the bottom wall of the air guide cavity 321 and the four corners of the mounting piece 42, respectively. When the four connectors 50 are tightened, the retaining box 32, the storage box 20, and the mounting piece 42 are fixed in place.

[0067] Please refer to the following: Figure 9 In some embodiments, the airbag mechanism 102 may further include a first mounting bracket 60. The bottom of the first mounting bracket 60 may be fixedly connected to the vehicle body 101 to realize the installation of the airbag mechanism 102 on the vehicle body 101.

[0068] The top of the first mounting bracket 60 can abut against the bottom of the storage box 20 and the top of the mounting member 42. The mounting member 42 and the storage box 20 can cooperate to clamp the first mounting bracket 60. The top of the first mounting bracket 60 has a clearance opening 61 to avoid the gas generator 41, which can pass through the clearance opening 61. Multiple connectors 50 are simultaneously inserted through the top of the first mounting bracket 60 and simultaneously fix the retaining box 32, the storage box 20, the first mounting bracket 60, and the mounting member 42.

[0069] It is understandable that multiple connectors 50 can simultaneously connect the storage box 20, the retaining component 30, the air outlet component 40, and the first mounting bracket 60, thereby improving the ease of assembly of the airbag mechanism 102.

[0070] In some embodiments, the airbag mechanism 102 may further include two second mounting brackets 70. The two second mounting brackets 70 may be symmetrically arranged in a first direction and respectively fixedly installed on both sides of the storage box 20 in the first direction. Both second mounting brackets 70 may be fixedly connected to the vehicle body 101 to cooperate with the first mounting bracket 60 to realize the installation of the airbag mechanism 102 on the vehicle body 101.

[0071] When the airbag mechanism 102 and vehicle 100 provided by the embodiments of this application are used, and the airbag is deployed when the vehicle 100 is involved in a collision, the multiple air outlets 411 around the gas generator 41 can spray high-temperature gas in a direction perpendicular to the third direction. The high-temperature gas can be sprayed onto the side wall of the air guide cavity 321 and flow towards the top of the airbag 10 in a third direction, thereby blowing the top of the airbag 10 away from the storage box 20 and closer to the person. As the high-temperature gas continues to be sprayed, more gas flows into the space between the top of the airbag 10 and the gas generator 41, so as to continuously push the top of the airbag 10 away from the gas generator 41 and inflate the airbag 10, thereby causing the airbag 10 to expand in the direction closer to the person and come into contact with the person to protect the person.

[0072] Thus, compared to the situation where the gas is not guided to the top of the airbag 10 by the retaining box 32, but instead the high-temperature gas is directly blown in a direction perpendicular to a third direction (e.g., the first direction, the second direction, the direction forming an acute angle with the first direction, and the direction forming an acute angle with the second direction) to the part of the airbag 10 stacked in the storage cavity 21, thereby inflating the airbag 10 by filling it, the gas is guided by the side wall of the air guide cavity 321 in this embodiment. This allows the gas to directly blow the top of the airbag 10 away from the storage box 20 and drive the part of the airbag 10 stacked in the storage cavity 21 to move synchronously closer to the personnel. Combined with the inflation effect of the gas on the airbag 10, the expansion speed of the airbag 10 in the direction closer to the personnel can be increased. This allows the airbag 10 to quickly expand into the cabin space 1011 and come into contact with the personnel when the vehicle 100 collides, thus strengthening the protection of the personnel and improving their safety.

[0073] Meanwhile, in the embodiments of this application, while guiding the high-temperature gas towards the top of the air bag 10 through the side wall of the air guide cavity 321, the high-temperature gas is blocked from the direction perpendicular to the third third direction. This reduces the occurrence of high-temperature gas being directly sprayed onto the part of the air bag 10 away from the top of the air bag 10 in the direction perpendicular to the third third direction. This reduces the occurrence of parts of the air bag 10 being scorched or melted due to continuous exposure to high-temperature gas, thereby reducing the probability of air bag 10 leaking and improving personnel safety.

[0074] This application is not limited to the specific embodiments described above. Those skilled in the art will readily understand that many alternative solutions exist for the test fixture without departing from the principles and scope of this application. The scope of protection of this application is determined by the claims.

Claims

1. An airbag mechanism, characterized in that, include: A storage box, wherein a storage cavity is provided on the storage box; A retaining assembly is located within the storage cavity. The retaining assembly includes a retaining frame and a retaining box. The retaining box is located inside the retaining frame and connected to the retaining frame. An air guide cavity is formed on the retaining box. The sidewall of the air guide cavity extends along the height direction of the airbag mechanism. The air guide cavity communicates with the storage cavity. An air bag, wherein the air bag portion is confined between the inner wall of the receiving cavity and the retaining frame, the air bag is received within the receiving cavity, and the receiving cavity and the air guiding cavity are closed on one side in the height direction; An air outlet assembly is located within the air guiding cavity. An air outlet hole is formed on the periphery of the air outlet assembly and is disposed facing the side wall of the air guiding cavity. The air outlet assembly is used to eject gas through the air outlet hole. The side wall of the receiving cavity is used to guide the gas to flow in the height direction and to inflate the air bag.

2. The airbag mechanism according to claim 1, characterized in that, In the height direction, the top of the retaining box is higher than the top of the air outlet assembly.

3. The airbag mechanism according to claim 1, characterized in that, In the height direction, the top of the retaining frame is higher than the top of the retaining box, and the top of the retaining frame is lower than the top of the storage box.

4. The airbag mechanism according to claim 1, characterized in that, In the width direction of the airbag mechanism, the distance between the retaining box and the first side of the storage box is greater than the distance between the retaining box and the second side of the storage box, and the distance between the air venting component and the first side of the storage box is greater than the distance between the air venting component and the second side of the storage box. The first side and the second side are two opposite sides in the width direction, and the first side of the storage box is used to be close to people.

5. The airbag mechanism according to claim 1, characterized in that, The retaining box surrounds the outside of the air outlet assembly. There are multiple air outlets, and at least some of the air outlets are spaced apart along the direction surrounding the air outlet assembly. Each air outlet is used to spray gas into the corresponding side wall of the air guide cavity, so that the gas is guided to the air bag.

6. The airbag mechanism according to claim 1, characterized in that, The storage box has a first through hole at the bottom, and the retaining box has a second through hole at the bottom. The first through hole and the second through hole are corresponding to and connected to each other. The gas outlet assembly includes a gas generator and a mounting component. The gas generator is disposed on the mounting component and passes through the first through hole and the second through hole. The mounting component is connected to the bottom of the storage box.

7. The airbag mechanism according to claim 6, characterized in that, The airbag mechanism also includes: Multiple connectors are connected to the bottom of the retaining box, the bottom of the storage box, and the mounting component to secure the storage box, the retaining assembly, and the air venting assembly.

8. The airbag mechanism according to claim 7, characterized in that, The airbag mechanism also includes: A first mounting bracket is located at the bottom of the storage box and is connected to the storage box via multiple connectors. The first mounting bracket is used to connect to the vehicle body.

9. The airbag mechanism according to claim 7, characterized in that, The airbag mechanism also includes: The second mounting bracket is connected to the side of the storage box and is used to connect to the vehicle body.

10. A vehicle, characterized in that, include: Vehicle body; The airbag mechanism as described in any one of claims 1 to 9, wherein the airbag mechanism is disposed on the vehicle body.

Images