Buffering air bag

Abstract

The utility model relates to a buffer gasbag, including: gasbag main part, honeycomb structure and gas generator, honeycomb structure is made of cloth, honeycomb structure is connected with gasbag main part inner wall, honeycomb structure includes a plurality of cylindrical object, the cylindrical object is hollow structure, adjacent cylindrical object is mutually communicated, and the gas generator is connected with the cylindrical object. The cylindrical body positioned on the outer layer of the honeycomb structure is communicated with the air bag main body; the gas generator is used for generating gas for filling the air bag, and the gas generator is arranged in the cylindrical body and / or the air bag main body. The air bag main body adopts the honeycomb structure design, so that the air bag main body has a higher-strength compression-resistant effect and also has a buffering performance.

Description

Technical Field

[0001] This utility model relates to the field of airbag technology, and in particular to a buffer airbag. Background Technology

[0002] Car airbags are an important passive safety device in automobiles. They are typically installed in locations such as the steering wheel, dashboard, and doors. When a car experiences a severe impact, sensors quickly detect and trigger the airbag system. The airbag inflates and deploys within a very short time to cushion the impact between the occupants and hard objects inside the vehicle. They are generally filled with inert gases such as nitrogen, and the airbag material possesses good toughness and strength. They effectively reduce the severity of injuries to occupants in accidents, especially providing crucial protection for critical areas such as the head, chest, and face, significantly improving vehicle safety.

[0003] However, existing car airbags are usually hollow, which has poor pressure resistance and may not provide sufficient protection for passengers and drivers in a car accident. Summary of the Invention

[0004] The purpose of this invention is to provide a cushioning airbag to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model discloses a cushioning airbag, comprising: an airbag body, a honeycomb structure, and a gas generator. The honeycomb structure is made of fabric and is connected to the inner wall of the airbag body. The honeycomb structure includes a plurality of columnar bodies, each columnar body being hollow. Adjacent columnar bodies are interconnected, and the columnar bodies located on the outer layer of the honeycomb structure are connected to the airbag body. The gas generator is used to generate gas to fill the airbag and is disposed in the columnar bodies and / or the airbag body.

[0006] Preferably, the side of the columnar body is provided with a gas channel, and adjacent columnar bodies are connected through the gas channel.

[0007] Preferably, the cross-section of the column is hexagonal, pentagonal, quadrilateral, triangular, or circular.

[0008] Preferably, the columnar body is made of the same material as the airbag body.

[0009] Preferably, the honeycomb structure is provided with connecting pieces at both the upper and lower ends, and the connecting pieces are ultrasonically welded to the airbag body.

[0010] Preferably, the columnar bodies are ultrasonically welded together.

[0011] Preferably, the cross-sectional area of ​​the columnar body in the central region of the honeycomb structure is smaller than that of the columnar body in the outer region of the honeycomb structure.

[0012] Preferably, it includes a peripheral protective airbag, which is arranged around the edge of the airbag body, and a gas generator is provided inside the peripheral protective airbag.

[0013] Preferably, the peripheral protective airbag is a single, annular structure; or, multiple peripheral protective airbags are provided, spaced apart on the outer periphery of the airbag body.

[0014] Preferably, it includes a secondary airbag, which is disposed on the main body of the airbag. The volume of the secondary airbag is smaller than that of the main body of the airbag. A gas generator is disposed inside the secondary airbag, and a pressure relief hole is provided on the secondary airbag.

[0015] This utility model has the following beneficial effects:

[0016] 1. The airbag body of this utility model adopts a honeycomb structure design, which has a higher strength and pressure resistance, and also has a cushioning performance.

[0017] 2. The honeycomb structure has different cross-sectional areas, providing gradient buffer protection.

[0018] 3. This utility model is designed with peripheral protective airbags, which can expand the protection range of the airbags and provide additional protection for certain parts.

[0019] 4. The auxiliary airbag can improve the protection of the human body, provide additional cushioning, and reduce the damage to the human body when the airbag is deployed.

[0020] 5. Ultrasonic welding is fast and easy to automate, which can greatly improve production efficiency. In addition, ultrasonic welding has good sealing performance, which can effectively avoid the quality problems caused by traditional sewing processes and improve the reliability and safety of airbags. Attached Figure Description

[0021] Figure 1 This is a cross-sectional schematic diagram of the airbag body and surrounding protective airbag provided in a specific embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the columnar body provided in a specific embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the honeycomb structure provided in a specific embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the airbag body and surrounding protective airbag provided in a specific embodiment of the present utility model;

[0025] Figure 5This is a schematic diagram of the airbag body and surrounding protective airbag provided in a specific embodiment of the present utility model;

[0026] Figure 6 This is a schematic diagram of the airbag body, peripheral protective airbag, and auxiliary airbag provided in a specific embodiment of the present utility model;

[0027] Figure 7 This is a schematic diagram of the airbag body, peripheral protective airbag, and auxiliary airbag provided in a specific embodiment of this utility model.

[0028] Explanation of symbols for main components:

[0029] 100. Airbag body; 110. Columnar body; 111. Gas channel; 112. Connecting piece; 200. Peripheral protective airbag; 300. Gas generator; 400. Secondary airbag. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] Example 1

[0032] like Figures 1-4 This utility model provides a buffer airbag, including: an airbag body 100, a honeycomb structure and a gas generator 300. The honeycomb structure is made of fabric and is connected to the inner wall of the airbag body 100. The honeycomb structure includes a plurality of columnar bodies 110. The columnar bodies 110 are hollow structures and adjacent columnar bodies 110 are interconnected. The columnar bodies 110 located on the outer layer of the honeycomb structure are connected to the airbag body 100.

[0033] In this embodiment, gas channels 111 are provided on the sides of the columnar bodies 110, and adjacent columnar bodies 110 are connected through the gas channels 111. The honeycomb structure itself has good stability and pressure resistance. The arrangement of the columnar bodies 110 can provide structural support for the airbag while ensuring cushioning performance, preventing excessive deformation or rupture of the airbag during inflation and use. Moreover, the columnar bodies 110 in the honeycomb structure are hollow and interconnected. This structure can absorb and dissipate energy when subjected to external impact through the flow of gas between the columnar bodies 110 and the deformation of the columnar bodies 110. Multiple columnar bodies 110 work together to provide uniform and stable cushioning force, effectively reducing the impact of external impact on the protected object.

[0034] A gas generator 300 is used to generate gas to fill the airbag, and the gas generator 300 is disposed in the columnar body 110 and / or the airbag body 100. In this embodiment, the gas generator 300 is disposed simultaneously in the columnar body 110 and the airbag body 100. This arrangement is beneficial for uniformly distributing the gas throughout the airbag system.

[0035] The cross-section of the column 110 is hexagonal, pentagonal, quadrilateral, triangular, or circular. In this embodiment, the cross-section of the column 110 is a regular hexagon. The regular hexagonal structure makes the connection between the columns 110 more compact and uniform. When subjected to external impact, the force can be transmitted and dispersed between the columns 110 through the sides and corners of the regular hexagon, thereby achieving a more uniform buffering effect.

[0036] The columnar body 110 is made of the same material as the airbag body 100. In this embodiment, using the same material facilitates manufacturing using a uniform processing technique. Furthermore, using the same material means that the columnar body 110 and the airbag body 100 are matched in mechanical properties, such as elastic modulus, hardness, and tensile strength. This allows them to deform and absorb energy in a similar manner when subjected to external impact, better maximizing the overall cushioning effect of the airbag and preventing uneven cushioning or localized excessive stress due to significant differences in the mechanical properties of any part.

[0037] Connecting pieces 112 are provided at both the top and bottom ends of the honeycomb structure, and the connecting pieces 112 are ultrasonically welded to the airbag body 100. In this embodiment, by providing the connecting pieces 112, both the top and bottom ends of the honeycomb structure can be fixed to the airbag body 100, enhancing the stability of the structure. Multiple connecting pieces 112 can be provided at intervals, or they can be arranged in a ring around the top and bottom ends of the honeycomb structure.

[0038] In this embodiment, the columnar bodies 110 are connected by ultrasonic welding, and the connecting piece 112 is also connected to the honeycomb structure and the airbag body 100 by ultrasonic welding. Ultrasonic welding has significant advantages in airbag production. First, the welding speed is extremely fast, facilitating automated production processes and significantly improving production efficiency. Second, the welding provides excellent sealing, effectively avoiding the quality hazards that are easily caused by traditional sewing processes, and significantly improving the reliability and safety of the airbag. Third, the welding stitches are flat and smooth, greatly enhancing the aesthetic appearance of the airbag.

[0039] Example 2

[0040] Combination Figure 1 , Figure 4 and Figure 5The main difference between this embodiment and Embodiment 1 is that the peripheral protective airbag 200 is arranged around the edge of the airbag body 100, and a gas generator 300 is provided inside the peripheral protective airbag 200. In this embodiment, the peripheral protective airbag 200 surrounds the edge of the airbag body 100. When the vehicle is involved in a collision, in addition to the frontal cushioning provided by the airbag body 100, the peripheral protective airbag 200 can provide additional protection for the area surrounding the airbag body 100. The peripheral protective airbag 200 is equipped with an independent gas generator 300, which can rapidly inflate and deploy upon sensing a collision. When different parts of the vehicle are impacted, the corresponding peripheral protective airbags 200 can respond quickly.

[0041] The peripheral protective airbag 200 is configured as a single, annular structure; alternatively, multiple peripheral protective airbags 200 may be configured, spaced apart around the outer periphery of the airbag body 100. The annular peripheral protective airbag 200 provides continuous and stable edge protection for the vehicle in various collision scenarios, suitable for common collisions such as frontal and side impacts. The spaced-apart configuration allows for flexible adjustment of the protection strategy based on the impact point under impacts of specific angles or forces, offering better adaptability to different collision scenarios and meeting diverse safety needs.

[0042] Example 3

[0043] The main difference between this embodiment and Embodiment 1 is that the cross-sectional area of ​​the columnar body 110 in the central region of the honeycomb structure is smaller than that of the columnar body 110 in the outer region of the honeycomb structure.

[0044] In this embodiment, the smaller cross-sectional area columnar body 110 provides more flexible deformation capability in the central region. Combined with the larger cross-sectional area columnar bodies 110 on the periphery, a gradient change in buffering performance is formed. This gradient change allows the buffer airbag to better adapt to impact forces of different intensities and distributions. In the initial stage of impact, the small cross-sectional area columnar body 110 in the central region quickly absorbs energy. As the impact force spreads, the larger cross-sectional area columnar bodies 110 on the periphery further provide stable support and buffering, ensuring that the entire buffering process is smooth and efficient.

[0045] In this embodiment, the relatively small cross-section of the central column 110 results in a relatively narrow channel for gas flow. When the airbag is impacted, the narrow channel increases the resistance to gas flow as gas flows between the columns 110, inducing turbulence. This turbulence intensifies friction between gas molecules and between the gas and the walls of the column 110, further dissipating impact energy and thus improving the efficiency of energy absorption and dissipation, thereby enhancing the cushioning performance.

[0046] Example 4

[0047] like Figures 6-7The main difference between this embodiment and embodiment one is that: the auxiliary airbag 400 is set on the airbag body 100, the volume of the auxiliary airbag 400 is smaller than that of the airbag body 100, a gas generator 300 is provided inside the auxiliary airbag 400, and a pressure relief hole is provided on the auxiliary airbag 400.

[0048] In this embodiment, the auxiliary airbag 400 can provide focused protection for critical areas, offering better protection and reducing the damage caused by the airbag to the human body, such as providing focused protection for the head. Due to its small volume, the auxiliary airbag 400's internal gas generator 300 can inflate the airbag in a very short time, achieving rapid response. Compared to the time required for the main airbag 100 to inflate, the auxiliary airbag 400 can begin to buffer the impact the instant it occurs, promptly dissipating the initial impact force and buying time for the main airbag 100 to provide full cushioning, thus improving the overall airbag system's response speed to sudden impacts.

[0049] The auxiliary airbag 400 works in conjunction with the main airbag 100 to enrich the cushioning layers. The auxiliary airbag 400 first provides initial cushioning of the impact, reducing the impact intensity. Then, the main airbag 100 fully deploys to cushion the remaining impact force. The two work together to improve the cushioning effect of the entire airbag system, which can better protect the protected object from impact damage.

[0050] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cushioning airbag, characterized in that, include: The airbag body (100), honeycomb structure, and gas generator (300) are provided. The honeycomb structure is made of fabric and is connected to the inner wall of the airbag body (100). The honeycomb structure includes a plurality of columnar bodies (110). The columnar bodies (110) are hollow structures and are interconnected with each other. The columnar bodies (110) located on the outer layer of the honeycomb structure are connected to the airbag body (100). The gas generator (300) is used to generate gas to fill the airbag and is disposed in the columnar bodies (110) and / or the airbag body (100).

2. The cushioning airbag according to claim 1, characterized in that: The side of the column (110) is provided with a gas channel (111), and adjacent columns (110) are connected by the gas channel (111).

3. A cushioning airbag according to claim 2, characterized in that: The cross-section of the column (110) is hexagonal, pentagonal, quadrilateral, triangular, or circular.

4. A cushioning airbag according to claim 1, characterized in that: The columnar body (110) is made of the same material as the airbag body (100).

5. A cushioning airbag according to claim 1, characterized in that: The honeycomb structure is provided with connecting pieces (112) at both the upper and lower ends, and the connecting pieces (112) are ultrasonically welded to the airbag body (100).

6. A cushioning airbag according to claim 1, characterized in that: The columnar bodies (110) are ultrasonically welded together.

7. A cushioning airbag according to claim 1, characterized in that: The cross-sectional area of ​​the columnar body (110) in the central region of the honeycomb structure is smaller than that of the columnar body (110) in the outer region of the honeycomb structure.

8. A cushioning airbag according to any one of claims 1-7, characterized in that: It also includes a peripheral protective airbag (200), which is arranged around the edge of the airbag body (100), and a gas generator (300) is provided inside the peripheral protective airbag (200).

9. A cushioning airbag according to claim 8, characterized in that: The peripheral protective airbag (200) is set as one, and the peripheral protective airbag (200) is annular; or, the peripheral protective airbag (200) is set as multiple, and is spaced apart on the outer periphery of the airbag body (100).

10. A cushioning airbag according to claim 1, characterized in that: Includes a secondary airbag (400), which is disposed on the airbag body (100). The volume of the secondary airbag (400) is smaller than that of the airbag body (100). A gas generator (300) is disposed inside the secondary airbag (400), and a pressure relief hole is provided on the secondary airbag (400).

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