Airbag and vehicle

Abstract

The application discloses an airbag and a vehicle, and belongs to the technical field of automobile safety. The airbag comprises: an air bag connected to one side of a seat of a vehicle, comprising: a first inflation part extending in a first direction and used for defining a first inflation space; and a second inflation part extending in a second direction and used for defining a second inflation space in communication with the first inflation space; and a configuration arranged to be closer to a sitting reference point of the seat relative to the first inflation part in the second direction; wherein the size of the first inflation part in the first direction is greater than the size of the second inflation part in the first direction; wherein the first direction is the length direction of the vehicle, and the second direction is the height direction of the vehicle. Through the technical scheme, the protection effect of the airbag on the side of an occupant can be improved.

Description

Technical Field

[0001] This application relates to the field of automotive safety technology, and more particularly to an airbag and a vehicle. Background Technology

[0002] An airbag is an inflatable structure installed around the seats in a car. When the vehicle is in normal operation, the airbag is in a folded state. When the vehicle is hit, the airbag's gas generator produces a large amount of gas, causing it to inflate and deploy instantly, forming a buffer zone around the occupants to prevent them from directly colliding with the vehicle body and thus protecting their safety.

[0003] In related technologies, some airbags have the problem of not providing adequate protection for the occupants' sides. Utility Model Content

[0004] This application provides an airbag and a vehicle to at least partially solve the above-mentioned technical problems.

[0005] In a first aspect, embodiments of this application provide an airbag, comprising: An airbag, attached to one side of the vehicle's seat, includes: The first inflation part extends along the first direction and is used to define the first inflation space; The second inflation section extends along a second direction to define a second inflation space that communicates with the first inflation space; it is configured to be closer to the seating reference point of the seat along the second direction relative to the first inflation section. Wherein, the dimension of the first inflatable part in the first direction is larger than the dimension of the second inflatable part in the first direction; Wherein, the first direction is the length direction of the vehicle, and the second direction is the height direction of the vehicle.

[0006] By adopting the above scheme, the first inflatable part extends along the first direction, covering the upper middle part of the occupant's torso to the shoulder area after inflation. The second inflatable part extends along the second direction and is closer to the seating reference point relative to the first inflatable part, covering the lower part of the occupant's torso to the hip area after inflation, thus providing more comprehensive side protection for the occupant. Since the hip area is close to the seat, the shoulder to chest area usually experiences greater anterior-posterior displacement than the hip area during a collision. Therefore, making the size of the first inflatable part larger in the first direction than the size of the second inflatable part in the first direction results in a wider coverage area for the first inflatable part in the vehicle's anterior-posterior direction. This provides sufficient cushioning area for the occupant's shoulders and chest while reducing the total inflation volume of the airbag, allowing for faster inflation and improving the reliability of the airbag's protection for the occupant.

[0007] In one embodiment, the dimension of the end of the second inflation portion connected to the first inflation portion in the first direction is greater than the dimension of the end of the second inflation portion away from the first inflation portion in the first direction.

[0008] In one embodiment, along the second direction, the size of the second inflatable portion in the first direction gradually decreases in the direction away from the first inflatable portion.

[0009] In one embodiment, a recessed region is formed at the connection between the first inflatable portion and the second inflatable portion, the recessed region being configured such that the second inflatable portion has a gap with the seat along the first direction when inflated.

[0010] In one embodiment, when the air bag is not inflated and is in a flattened state, the dimension a of the first inflatable part in the second direction satisfies: 200mm≤a≤220mm; In one embodiment, the dimension b of the second inflatable part in the second direction satisfies: 225mm ≤ a ≤ 245mm.

[0011] In one embodiment, when the air bag is not inflated and is in a flat state, the dimension e of the first inflatable part in the first direction satisfies: 367.5mm≤e≤380mm.

[0012] In one embodiment, the distance c between the side edge of the first inflatable part connected to the seat and the side edge of the second inflatable part facing the back of the seat in the first direction satisfies: 110mm≤c≤130mm.

[0013] In one embodiment, it further includes: a gas generator, the gas generator having a gas outlet connected to the interior of the gas bag, and configured to generate gas to be introduced into the interior of the gas bag; The outlet of the gas generator defines an outlet direction that extends downward along the height of the seat.

[0014] In one embodiment, an exhaust port is formed on the air bag on the surface of the first inflation part facing the vehicle door.

[0015] In one embodiment, along the first direction, the vent is formed at the edge of the first inflation portion at the end away from the seat.

[0016] In one embodiment, along the second direction, the vent is formed at the edge of the first inflation portion away from the second inflation portion.

[0017] In one embodiment, the diameter d1 of the vent hole is in the range of 20mm ≤ d1 ≤ 30mm.

[0018] In one embodiment, the distance dx between the midpoint of the side edge where the first inflatable part is connected to the seat and the seating reference point in the first direction satisfies: 280mm≤dx≤340mm.

[0019] In one embodiment, the distance dz between the midpoint of the side edge where the first inflatable part is connected to the seat and the seating reference point in the second direction satisfies: 188mm≤dz≤270mm; In one embodiment, the distance between the midpoint of the side edge where the first inflatable part connects to the seat and the seating reference point in a third direction ranges from 220mm to 240mm, wherein the third direction is the width direction of the vehicle.

[0020] Secondly, embodiments of this application provide a vehicle including an airbag as described in any one of the embodiments of the first aspect.

[0021] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0023] Figure 1 This is a schematic diagram of the structure of the airbag piece of the airbag provided in the embodiments of this application; Figure 2 This is a schematic diagram of the airbag in the deployed state when it is installed in the rear independent seat, according to an embodiment of this application. Figure 3 This is a schematic diagram of the airbag in the deployed state when it is installed in the rear connected seat, according to an embodiment of this application. Figure 4 This is a schematic diagram of the airbag in a folded state provided in an embodiment of this application; Figure 5 The images show the chest and abdominal injury curves of the dummy when the airbag embodiment provided in the embodiments of this application and the comparative embodiment are installed in the rear independent seat during a crash test. Figure 6The images show the chest and abdominal injury curves of the dummy when the airbag embodiment and comparative example provided in this application are installed in the rear connected seats during a crash test.

[0024] Explanation of reference numerals in the attached figures: 10. Airbag; 100. Air bag; 110. First inflation section; 120. Second inflation section; 130. Exhaust port; 200. Gas generator; 210. Wiring harness interface; 20. Seat; X, first direction; Z, second direction. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application.

[0027] In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in its actual use or operating state, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device. Furthermore, in the description of this application, the term "comprising" means "including but not limited to". The terms first, second, third, etc., are used merely as illustrative purposes and do not impose numerical requirements or establish a numerical order.

[0028] In this application, for ease of explanation, the terms up, down, left, right, front, and back are used in the corresponding drawings to illustrate the relative positional relationships between the various parts of this application. These terms should not be construed as limitations on absolute positions. Furthermore, in this application, the first direction corresponds to the front-back direction in space, the second direction corresponds to the left-right direction in space, and the third direction corresponds to the up-down direction in space. Similarly, the first direction indicating the front-back direction is merely for the convenience of illustrating specific embodiments of this application; there is no absolute correspondence between the first direction and the front-back direction. Likewise, there is no absolute correspondence between the second direction and the left-right direction, and between the third direction and the up-down direction. The first, second, and third directions in this application are only for expressing relative positional relationships; they merely indicate approximate locations, not absolute geometric relationships.

[0029] In this application, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. A and B can be singular or plural.

[0030] Based on the aforementioned background technology, vehicles provide cushioning protection for occupants through airbags that inflate rapidly upon impact. Side impact protection is achieved through airbags positioned on the inside of the doors or the sides of the seats. When a vehicle is involved in a collision, the airbag inflates and forms a barrier between the occupant and the door or vehicle interior wall, reducing injury from a side impact. Side airbags are typically flat rectangular, semi-circular, or elliptical structures. On the one hand, their protection of the lower torso is less effective; on the other hand, differences in seat types, installation locations, and interior component compatibility across different vehicles make it difficult for side airbags of the same structure to be compatible with various vehicles.

[0031] In view of the above, this application provides an airbag 10 and a vehicle. Detailed descriptions are provided below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0032] Firstly, reference Figure 1 This application provides an airbag 10, which includes an air bag 100. The air bag 100 is connected to one side of a vehicle seat 20.

[0033] It is understood that the airbag 10 described in this application embodiment can be installed on the left and / or right side of the vehicle seat 20. Figure 1 The following explanation uses the airbag 10 installed on the left side of the seat 20 as an example. When the airbag 10 is installed on the right side of the seat 20, its structure can be symmetrical with the structure of the airbag 10 on the left side.

[0034] refer to Figure 1The airbag 100 includes: a first inflation portion 110 extending along a first direction X to define a first inflation space; and a second inflation portion 120 extending along a second direction Z to define a second inflation space communicating with the first inflation space; configured to be closer to the seating reference point of the seat 20 along the second direction Z than the first inflation portion 110; wherein the size of the first inflation portion 110 in the first direction X is larger than the size of the second inflation portion 120 in the first direction X; wherein the first direction X is the length direction of the vehicle, and the second direction Z is the height direction of the vehicle.

[0035] The airbag 100 is made of a flexible sheet material, forming a sealed inflatable space. In the event of a vehicle collision, the gas generator 200 rapidly inflates the airbag 100, creating a flexible buffer barrier to protect the occupants. The flexible material can be a high-strength fabric such as nylon 66. The airbag 100 can be... Figure 1 The cut pieces shown are made by folding along the axis of symmetry and sewing along the edges, or they can be formed by splicing multiple cut pieces together.

[0036] The first inflation section 110 and the second inflation section 120 can be an integral or separate structure. The first inflation space and the second inflation space are interconnected, and gas can flow freely between the first inflation space and the second inflation space, so that the air bag 100 can be inflated as a whole by a gas generator 200.

[0037] The seating reference point refers to the point where the occupant's buttocks and thighs meet (H-point) when sitting. It is typically simulated using a standard human body model, and the coordinates of the junction of the model's buttocks and thighs in the vehicle coordinate system are defined as the H-point. In the embodiments of this application, the occupant's seating posture is described based on the seating posture of the aforementioned standard human body model.

[0038] refer to Figure 2 and Figure 3In this embodiment, the first inflation part 110 extends along the first direction X, and the second inflation part 120 extends along the second direction Z, which can make the airbag 10 form an L-shaped or approximately L-shaped structure. The horizontal and vertical sides of the L-shape correspond to the first inflation part 110 and the second inflation part 120, respectively. It can be understood that the shape of the first inflation part 110 and the second inflation part 120 in the flattened state can be a rectangle, a rounded rectangle, a parallelogram, or an irregular shape. The extension axes of the first inflation part 110 and the second inflation part 120 can be parallel to the length and height directions of the vehicle, or they can form a certain angle with the length and height directions of the vehicle. The extension axes of the first inflation part 110 and the second inflation part 120 can be perpendicular to each other or not perpendicular. In the inflated state, the first inflatable part 110 can at least partially cover the occupant's shoulders, and the second inflatable part 120 can at least partially cover the occupant's abdomen. The specific shapes and structural parameters of the first and second inflatable parts 110 and 120 can be adjusted based on factors such as the actual vehicle's seat 20 dimensions, installation position differences, and interior compatibility. Whether the airbag is in its flattened or inflated state, the dimension of the first inflatable part 110 in the first direction X is larger than the dimension of the second inflatable part 120 in the first direction X.

[0039] By adopting the above scheme, the first inflatable part 110 extends along the first direction X, and after inflation, it can cover the upper middle part of the occupant's torso to the shoulder area. The second inflatable part 120 extends along the second direction Z, and is closer to the seating reference point along the second direction Z than the first inflatable part 110, and can cover the lower part of the occupant's torso to the hip area after inflation, thereby providing more adequate protection for the occupant's sides. Since the hip area is close to the seat 20, the shoulder to chest area usually has a greater fore-and-aft displacement than the hip area when the vehicle is involved in a collision. Therefore, the size of the first inflatable part 110 in the first direction X is larger than the size of the second inflatable part 120 in the first direction X, so that the first inflatable part 110 covers a wider area in the fore-and-aft direction of the vehicle. While providing sufficient cushioning area for the occupant's shoulders and chest, it can reduce the total inflation volume of the airbag 100, make the inflation speed faster, and improve the reliability of the airbag 10 in protecting the occupant.

[0040] In one embodiment, the dimension of the end of the second inflation part 120 connected to the first inflation part 110 in the first direction X is greater than the dimension of the end of the second inflation part 120 away from the first inflation part 110 in the first direction X.

[0041] By employing the above scheme, the size of the end of the second inflation part 120 connected to the first inflation part 110 is larger than the size of the end far from the first inflation part 110. This increases the area of ​​the connection region between the two, disperses the gas pressure and expansion tension during inflation, and avoids the risk of failure such as tearing caused by concentrated force at the connection point. At the same time, it also allows for smoother gas exchange between the first inflation space and the second inflation space, enabling the first inflation part 110 and the second inflation part 120 to expand synchronously. This avoids inflation delay or insufficient pressure in the second inflation space, thereby improving the reliability of the second inflation part 120 in protecting the occupant's waist and hip area.

[0042] In one embodiment, along the second direction Z, the size of the second inflation portion 120 in the first direction X gradually decreases in the direction away from the first inflation portion 110.

[0043] The above solutions can reduce the amount of fabric material used in the air bag 100, lower manufacturing costs, and make the lower space of the second inflation part 120 more compact, thereby improving inflation efficiency and the uniformity of pressure distribution in the air bag 100 after inflation.

[0044] In one embodiment, a recessed region is formed at the connection between the first inflation part 110 and the second inflation part 120, and the recessed region is configured such that the second inflation part 120 has a gap with the seat 20 in the first direction X when it is inflated.

[0045] Since the first inflation part 110 extends along the length of the vehicle and the second inflation part 120 extends along the height of the vehicle, if the side of both extending towards the seat 20 is flat or protruding towards the seat 20, the second inflation part 120 may come into contact with the surface of the seat 20 due to expansion tension during inflation, affecting the smooth inflation of the second inflation part 120. By creating a gap between the second inflation part 120 and the seat 20 through the recessed area, the second inflation part 120 can be inflated smoothly, and it can avoid components such as backrest frame side panels or adjustment mechanisms that may be installed in different types of seats 20, thereby improving the compatibility of the airbag 10 with different seats 20.

[0046] In one embodiment, when the air bag 100 is not inflated and is in a flat state, the dimension a of the first inflation part 110 in the second direction Z satisfies: 200mm≤a≤220mm.

[0047] The above solution enables the first inflation part 110 to form a reasonable vertical distance with the H point of the seat 20 in the second direction Z, ensuring that the airbag 100 can provide sufficient protection for the shoulders and chest after inflation. At the same time, it can be adapted to the installation space reserved for the side airbag 10 in various models, improving the compatibility of the airbag 10 with different seats 20.

[0048] In one embodiment, the dimension b of the second inflation part 120 in the second direction Z satisfies: 225mm≤a≤245mm.

[0049] When the occupant is seated, the vertical distance from point H to the lower abdomen is approximately 200 to 250 mm. By adopting the above scheme, the size b of the second inflatable part 120 in the second direction Z is set within the range of 225 mm to 245 mm. This allows the second inflatable part 120 to cover the area from the abdomen to the buttocks, and it has high size compatibility, which can improve the compatibility of the airbag 10 with different seats 20.

[0050] In one embodiment, when the air bag 100 is not inflated and is in a flat state, the dimension e of the first inflation part 110 in the first direction X satisfies: 367.5mm≤e≤380mm.

[0051] When passengers are seated, the distance from shoulder to chest along the length of the vehicle is approximately 350 to 380 mm. The above design ensures that the first inflation unit 110, after inflation, covers the outer side of the shoulder to the inner side of the chest in the front-rear direction of the vehicle, preventing direct collision between the upper body of the passenger and the vehicle body when the door intrudes. It also accommodates the lateral installation space on the side of the seat back of the seat 20 without affecting the seat 20's adjustment function. This is understandable. In one embodiment, the distance c between the side edge of the first inflatable part 110 connected to the seat 20 and the side edge of the second inflatable part 120 facing the back of the seat 20 in the first direction X satisfies: 110mm≤c≤130mm.

[0052] The above solution allows the misalignment distance between the first inflation part 110 and the second inflation part 120 in the length direction of the vehicle to match the natural curvature of the occupant's torso, improving the fit between the airbag 100 and the occupant's torso, and avoiding the differences in the backrest structure and interior parts of the seat 20, thereby improving the compatibility of the airbag 10 with different seats 20.

[0053] refer to Figure 4 In one embodiment, the airbag 10 further includes a gas generator 200. The gas generator 200 has a gas outlet communicating with the interior of the airbag 100 and is configured to generate gas that is introduced into the interior of the airbag 100; wherein the gas outlet of the gas generator 200 defines an outlet direction that extends downward along the height direction of the seat 20.

[0054] The gas generator 200 refers to a device that generates a large amount of gas in a short time through the combustion or decomposition of a chemical gas-generating agent during a vehicle collision, thereby rapidly inflating the airbag 10. In this embodiment, the gas generator 200 can produce 10L of gas and has a gas pressure of 154KPa. This specification of gas generator 200 can ensure that the airbag 100 has a supporting force in the range of 20 to 30kPa after inflation. The gas outlet can be located in the first inflation space or the second inflation space. The gas generator 200 may also include a wiring harness interface 210 for connecting to the vehicle's controller. The wiring harness interface 210 and the gas outlet can be located at opposite ends of the gas generator 200. When the wiring harness interface 210 is located at the upper end of the gas generator 200, it is easier to control the installation of the wiring harness.

[0055] Since the door intrudes from the outside during a side collision, the second inflator 120 needs to deploy first to prevent the abdomen from colliding with the door panel. By adopting the above solution, the air outlet direction is downward, which can shorten the inflation path of the second inflator 120, increase the deployment speed of the second inflator 120, and push the second inflator 120 to deploy away from the door, thereby improving the protection effect of the airbag 10 on the abdomen.

[0056] In one embodiment, an exhaust port 130 is formed on the air bag 100, and the exhaust port 130 is formed on the surface of the first inflation part 110 facing the vehicle door side.

[0057] The vent 130 can dynamically regulate the pressure of the airbag 100. When the pressure of the airbag 100 increases, the venting rate will increase accordingly, releasing excess gas and keeping the pressure within a safe buffer zone. Since the gas generated by the gas generator 200 is at a high temperature, placing the vent 130 on the surface facing the vehicle interior could cause the airflow to directly impact the occupants, potentially resulting in burns. By placing the vent 130 on the surface facing the door, the probability of occupants being burned by the airflow is reduced. Simultaneously, the door side is also the impact surface of the airbag 100 during a side collision. Placing the vent 130 on the door side allows the airbag 100 to dynamically vent according to changes in impact intensity, maintaining stable airbag 100 pressure.

[0058] In one embodiment, along the first direction X, an exhaust port 130 is formed on the edge of the first inflation portion 110 at the end away from the seat 20.

[0059] The first inflation part 110 is located at the end away from the seat 20, corresponding to the outer shoulder area of ​​the occupant. This position is the main force point for door intrusion. The exhaust port 130 is located here, which helps to quickly expel the high-pressure gas in the airbag 100, reduce the impact on the shoulder, and reduce the probability of the occupant being burned by the airflow.

[0060] In one embodiment, along the second direction Z, an exhaust port 130 is formed at the edge of the first inflation portion 110 away from the second inflation portion 120.

[0061] The edge of the first inflation part 110 away from the second inflation part 120 corresponds to the area above the shoulder of the occupant. The space above the shoulder is relatively open. By adopting the above solution, the probability of the occupant being burned by the airflow can be reduced, and the internal structure of the vehicle is less likely to interfere with the exhaust port 130.

[0062] In one embodiment, the diameter d1 of the vent 130 is in the range of 20mm≤d1≤30mm.

[0063] During the deflation process of the airbag 100, if the diameter of the vent hole 130 is too small, it may lead to poor deflation and excessive pressure in the airbag 100, exacerbating the injury to the occupants in a collision. If the diameter of the vent hole 130 is too large, it will cause deflation to be too rapid, resulting in insufficient pressure in the airbag 100, making it difficult to provide sufficient support and cushioning against intrusion into the vehicle door. The above solution balances the inflation and deflation processes of the airbag 100, maintaining stable pressure in the airbag 100.

[0064] In one embodiment, the distance dx between the midpoint of the side edge where the first inflatable part 110 is connected to the seat 20 and the seating reference point in the first direction X satisfies: 280mm≤dx≤340mm.

[0065] The H-point position of seat 20 is usually related to the type and adjustment position of seat 20. The fore-and-aft adjustment range of the second-row seat 20 is about 150mm. The H-point of the independent seat 20 is usually positioned forward in the first direction X, while that of the connected seat 20 is positioned backward. By adopting the above scheme, the deviation between the position of the airbag 100 in the first direction X and the center of the occupant's chest can be reduced, the impact force can be transmitted more evenly, the potential chest injury can be reduced, and the compatibility of the airbag 10 with different seats 20 can be improved.

[0066] In one embodiment, the distance dz between the midpoint of the side edge where the first inflatable part 110 is connected to the seat 20 and the seating reference point in the second direction Z satisfies: 188mm≤dz≤270mm; By adopting the above solution, the center position of the first inflation part 110 in the second direction Z can be closer to the center position of the occupant's chest. When subjected to impact, the chest can be subjected to force more evenly, thus improving the protection effect on the chest.

[0067] In one embodiment, the distance between the midpoint of the side edge where the first inflatable part 110 is connected to the seat 20 and the seating reference point in the third direction ranges from 220mm to 240mm, where the third direction is the width direction of the vehicle.

[0068] By adopting the above solution, the lateral gap between the airbag 100 and the occupant can be moderate, allowing the airbag 100 to quickly fit the body when inflated, thus shortening the response time.

[0069] The embodiments of this application are further illustrated below with reference to specific examples. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application.

[0070] Example 1 In Embodiment 1, the first inflation part 110 of the side airbag 10 has a dimension e of 375 mm in the first direction X and a dimension a of 200 mm in the second direction Z. The distance c between the side edge of the first inflation part 110 connected to the seat 20 and the side edge of the second inflation part 120 facing the back of the seat 20 in the first direction X is 110 mm. The dimension b of the second inflation part 120 in the second direction Z is 245 mm.

[0071] Comparative Example 1 The side airbag 10 provided in Comparative Example 1 is approximately elliptical in its flattened state, with a dimension of 357.5 mm in the first direction X and a dimension of 405 mm in the second direction Z.

[0072] Using a standard human body model, the side airbags 10 provided in Example 1 and Comparative Example 1 were installed on the side panels of the backrest frame of the second-row independent seats 20 and the side panels of the backrest frame of the second-row connected seats 20, respectively, and crash tests were conducted. The experimental data obtained are as follows: Figure 5 and Figure 6 As shown.

[0073] according to Figure 5 It can be seen that when the airbag 10 is installed on the side of the independent seat 20 in the second row of the vehicle, the peak time of the abdominal rib injury curve of the airbag 10 provided in Example 1 is earlier than that of the airbag 10 in Comparative Example 1. That is, the airbag 100 can reach the area between the abdomen and the door panel earlier to provide protection, thereby reducing the amount of abdominal deformation and the injury value. Evaluated according to the C-NCAP 2024 standard, the peak value of the chest injury curve is 27.2 mm, lower than the high-performance standard of 31 mm, and the peak value of the abdominal injury curve is 26.2 mm, lower than the high-performance standard of 38 mm, both achieving full marks.

[0074] according to Figure 6It can be seen that when the airbag 10 is installed on the side of the second-row connected seat 20 of the vehicle, the peak time of the chest and abdominal rib injury curves of the airbag 10 provided in Example 1 is earlier than that of the airbag 10 in Comparative Example 1. That is, the airbag 100 can reach the area between the abdomen and the door panel to provide protection earlier, the amount of chest and abdominal deformation is reduced, the injury value is reduced, especially the abdomen is significantly improved. According to the C-NCAP 2024 standard, the peak value of the chest injury curve is 26.8mm, which is lower than the high performance value standard of 31mm, and the peak value of the abdominal injury curve is 35.7mm, which is lower than the high performance value standard of 38mm. All evaluation items are full marks, while the abdominal injury value of Comparative Example 1 exceeds the upper limit threshold set by the standard, and the score for this evaluation item is 0 points.

[0075] Based on the above experimental data, it can be seen that the airbag 10 provided in this application embodiment can effectively improve the protection effect for occupants during side collisions.

[0076] Secondly, embodiments of this application provide a vehicle including an airbag 10 of any one of the embodiments of the first aspect.

[0077] The airbag 10 can be installed on the side of the seat 20 of the vehicle, and the edge of the first inflatable part 110 is connected to the side panel of the backrest frame of the second row of seats 20 of the vehicle.

[0078] The vehicle may be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this application does not make any specific restrictions.

[0079] The vehicle has all the beneficial effects of the airbags described in the foregoing embodiments, which will not be repeated here.

[0080] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0081] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0082] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0083] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. An airbag (10), characterized in that, include: An airbag (100), attached to one side of the vehicle seat (20), includes: The first inflation part (110) extends along the first direction and is used to define the first inflation space; The second inflation section (120) extends in a second direction to define a second inflation space that communicates with the first inflation space; it is configured to be closer to the seating reference point of the seat (20) in the second direction relative to the first inflation section (110); Wherein, the dimension of the first inflation part (110) in the first direction is greater than the dimension of the second inflation part (120) in the first direction; Wherein, the first direction is the length direction of the vehicle, and the second direction is the height direction of the vehicle.

2. The airbag (10) according to claim 1, characterized in that, The dimension of the end of the second inflation part (120) connected to the first inflation part (110) in the first direction is greater than the dimension of the end of the second inflation part (120) away from the first inflation part (110) in the first direction.

3. The airbag (10) according to claim 1, characterized in that, Along the second direction, the size of the second inflation part (120) in the first direction gradually decreases in the direction away from the first inflation part (110).

4. The airbag (10) according to claim 1, characterized in that, A recessed area is formed at the connection between the first inflation part (110) and the second inflation part (120), and the recessed area is configured such that the second inflation part (120) has a gap with the seat (20) in the first direction when it is inflated.

5. The airbag (10) according to any one of claims 1 to 4, characterized in that, When the air bag (100) is not inflated and is in a flat state, the dimension a of the first inflatable part (110) in the second direction satisfies: 200mm≤a≤220mm; and / or The dimension b of the second inflation part (120) in the second direction satisfies: 225mm≤a≤245mm.

6. The airbag (10) according to any one of claims 1 to 4, characterized in that, When the air bag (100) is not inflated and is in a flat state, the dimension e of the first inflatable part (110) in the first direction satisfies: 367.5mm≤e≤380mm; and / or The distance c between the edge of the first inflatable part (110) connected to the seat (20) and the edge of the second inflatable part (120) facing the back of the seat (20) in the first direction satisfies: 110mm≤c≤130mm.

7. The airbag (10) according to any one of claims 1 to 4, characterized in that, Also includes: A gas generator (200) having a gas outlet connected to the interior of the gas bag (100) is configured to generate gas that is introduced into the interior of the gas bag (100). The outlet of the gas generator (200) defines the gas outlet direction, which extends downward along the height direction of the seat (20).

8. The airbag (10) according to any one of claims 1 to 4, characterized in that, An exhaust port (130) is formed on the air bag (100), and the exhaust port (130) is formed on the surface of the first inflation part (110) facing the vehicle door. and / or Along the first direction, the vent (130) is formed at the edge of the first inflation part (110) away from the seat (20); and / or Along the second direction, the vent (130) is formed at the edge of the first inflation part (110) away from the second inflation part (120); and / or The diameter d1 of the exhaust hole (130) is in the range of 20mm≤d1≤30mm.

9. The airbag (10) according to any one of claims 1 to 4, characterized in that, The distance dx between the midpoint of the side edge where the first inflatable part (110) connects to the seat (20) and the seating reference point in the first direction satisfies: 280mm≤dx≤340mm; and / or The distance dz between the midpoint of the side edge where the first inflatable part (110) connects to the seat (20) and the seating reference point in the second direction satisfies: 188mm≤dz≤270mm; and / or The distance between the midpoint of the side edge where the first inflation part (110) connects to the seat (20) and the seating reference point in the third direction ranges from 220mm to 240mm, where the third direction is the width direction of the vehicle.

10. A vehicle, characterized in that, Includes the airbag (10) as described in any one of claims 1 to 9.

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