Independent side wing provided with air bag and provided with air bag blasting area reinforcing structure

Abstract

The invention relates to an independent side wing with an air bag and an air bag blasting area reinforcing structure, which is connected with a vehicle body metal plate through a side wing metal plate clamp and comprises a side wing plastic framework, side wing foam, a side wing protective surface, a side wing air bag assembly and the air bag blasting area reinforcing structure, the side wing air bag assembly comprises a safety air bag which is connected with the side wing plastic framework through a fastener; the side wing plastic framework and the side wing foam are assembled together; the side wing protective surfaces are clamped with the plastic framework through the clamping strips to realize integral coating; the air bag blasting area reinforcing structure is used for protecting the side wing plastic framework and preventing the plastic framework from being broken and flying out. According to the independent side wing integrated with the airbag box structure and provided with the airbag, the plastic cavity area structure of the safety airbag is reinforced through the airbag box, it is guaranteed that the airbag does not deform after being unfolded, and the protection area is stable; after optimization, the blasting result of the airbag is stable, and no fragmentation flying-out condition exists; the independent side wing integrated with the air bag box structure and provided with the air bag has safety, comfort and stability.

Description

Technical Field

[0001] The invention belongs to the technical field of automobiles, and in particular relates to an independent wing with an airbag and an airbag bursting zone reinforcement structure. Background Art

[0002] The explosion of the side wing airbag occurs when the vehicle collides, which can prevent the occupants from being seriously injured by the collision, and more effectively provide anti-collision protection for the occupants. At present, a small number of luxury cars are equipped with small airbags with a small deployment area of ​​6-8L. With the upgrade of CNCAP standards, independent explosive side wing airbags will gradually become the mainstream of the market. The standards also clearly require the improvement of the occupant protection area and the increase of the airbag deployment area. Then, products with a large deployment area of ​​14-16L and independent explosive side wings are developed.

[0003] At present, the automotive industry is more committed to improving the safety and comfort of passenger car seats, and adding rear airbags inside the car. However, according to the structure of the car seat backrest, most rear seat backrests do not have enough space to place airbags. Therefore, it is considered to add independent rear side wings to the rear seats of the car and arrange the airbags in them, so that when the whole vehicle collides, the airbags can expand quickly and buffer the impact force, thereby providing certain protection for the life safety of the passengers in the car. This structure not only provides storage space for the airbag, but also ensures the correct deployment shape of the airbag when the airbag is working and provides overall support for the airbag.

[0004] However, as the airbag becomes larger and the impact force increases, the traditional plastic structure cannot meet the strength requirements, causing the plastic parts to break and fly out, causing harm to the occupants. At the same time, due to the increase in the volume of the side wing airbag, FEA analysis was performed. The side wing material is PP / PE-TD5, and the material curve at -35°C was used for analysis. The results showed that the maximum effective plastic strain of the side wing was 68.78MPA, which is much larger than the standard 0.13MPA, and the risk of damage is extremely high.

[0005] Based on this, the existing side wing structure cannot meet the blasting requirements, and it is necessary to strengthen the side wing skeleton structure and develop a new type of independent side wing with airbag to effectively solve the above problems and effectively protect the lives of passengers when the whole vehicle collides. Summary of the invention

[0006] The purpose of the present invention is to provide an independent side wing with an airbag and an airbag explosion zone reinforcement structure, strengthen the side wing skeleton structure, so as to solve the problem of meeting the airbag explosion strength requirement and improve the safety of rear passengers.

[0007] The objective of the present invention is achieved through the following technical solutions:

[0008] An independent wing with an airbag and an airbag bursting zone reinforcement structure, connected to the body sheet metal through a wing sheet metal clip 7, comprising a wing plastic frame 1, a wing foam 3, a wing protective surface 4, a wing airbag assembly 5 and an airbag bursting zone reinforcement structure;

[0009] The side wing airbag assembly 5 includes a safety airbag, which is connected to the side wing plastic frame 1 through fasteners; the side wing plastic frame 1 is assembled with the side wing foam 3; the side wing guard 4 is connected to the plastic frame 1 through the clamping strip 2 to achieve overall coverage; the airbag explosion zone reinforcement structure is used to protect the side wing plastic frame 1 to prevent the plastic frame from breaking and flying out.

[0010] Furthermore, the side wing plastic frame 1 is an integral supporting structure, which is fixed to the vehicle body.

[0011] Furthermore, the side wing foam 3 is filled in the side wing plastic frame 1 to achieve a soft area in the area in contact with the human body.

[0012] Furthermore, the side wing protective surface 4 is in a covering form and covers the outside of the side wing foam 3 .

[0013] Furthermore, the fasteners are bolts, airbag nuts and gaskets 6.

[0014] Furthermore, the airbag bursting zone reinforcement structure is a metal airbag box 9 integrated in the airbag cavity of the wing airbag assembly 5 , and the metal airbag box 9 is connected to the wing airbag assembly 5 through an airbag nut and a gasket 6 .

[0015] Furthermore, the airbag bursting zone reinforcement structure is a fabric hinge structure 8 , and the fabric hinge structure is embedded and injection-molded into the side wing plastic frame 1 .

[0016] Furthermore, the fabric hinge structure 8 is mainly made of nylon, woven into a mesh, and is integrally formed with the wing plastic frame 1 by an inlay injection molding process.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention strengthens the structure of the plastic cavity area of ​​the airbag to ensure that the airbag is deployed without deformation and the protection area is stable; the optimized airbag explosion result is stable without fragmentation and flying out; the airbag is equipped with independent side wings, which has the following advantages:

[0019] 1. Safety: The independent side wing with airbags of the present invention is the first side wing integrated with large airbags in China, which realizes the airbag protection covering the chest, abdomen and buttocks of rear passengers, ensuring the correct and stable deployment of the airbags to protect the occupants from injury;

[0020] 2. Comfort: Breaking the traditional plastic structure of the C-pillar guard, the design adopts plastic parts as the skeleton support, foam as the internal filling material, and PVC or leather as the exterior covering. This design makes the passengers feel no foreign body when leaning against it, eliminates the cheap feeling and hard touch feeling brought by hard plastic, and the soft foam plus skin covering makes the passengers feel more comfortable.

[0021] 3. Stability: The product has a stable structure, the covering adopts a card strip connection structure, the assembly adopts a standard metal card structure, and the airbag has an error-proofing function to ensure product quality and durability, help extend product life, and reduce waste and resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 Schematic diagram of the existing side wing airbag structure;

[0024] Figure 2 FEA analysis diagram of side wing airbags;

[0025] Figure 3 Schematic diagram of the structure of the independent wing with airbags, where the reinforcement structure of the airbag blasting area is a fabric hinge structure;

[0026] Figure 4 The reinforced structure of the airbag blasting area is a schematic diagram of the metal airbag box with an independent side wing structure of the airbag;

[0027] Figure 5 Schematic diagram of the airbag cavity assembly.

[0028] In the figure, 1. side wing plastic frame 2. clamping strip 3. side wing foam 4. side wing protective surface 5. side wing airbag assembly 6. airbag nut and gasket 7. side wing sheet metal clip 8. fabric hinge structure 9. metal airbag box. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with embodiments:

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0032] The seat wing is a key automotive interior component and also serves as a carrier for the airbag. Usually, the independent wing of a car seat is mainly supported by a plastic structure, and the foam and skin covering match the seat appearance to meet the consistency of the overall vehicle appearance. Since the airbag has a large impact on the main structure of the wing when it explodes, the use of an integral plastic structure presents a greater risk of fragmentation and flying out in the early design test verification. The present invention studies the manufacturing method and molding mechanism of the coated independent explosion wing, and based on the principle of reducing the investment in large-scale slush molding equipment such as molds, conducts structural verification of large-volume airbags and researches and develops the low-temperature performance of materials, and designs a new structure that meets the airbag explosion strength requirements.

[0033] The independent wing with airbag and airbag bursting zone reinforcement structure of the present invention is connected to the body sheet metal through the wing sheet metal clip 7, and includes a wing plastic frame 1, wing foam 3, wing protective surface 4, wing airbag assembly 5 and airbag bursting zone reinforcement structure.

[0034] The side wing plastic frame 1 is an integral supporting structure, which is fixed to the vehicle body.

[0035] The side wing foam 3 is filled in the side wing plastic frame 1 to realize a soft area in contact with the human body and increase comfort.

[0036] The side wing protective surface 4 is coated on the outside of the side wing foam 3 in a coating form to improve the appearance quality and eliminate the plastic texture.

[0037] The wing airbag assembly 5 includes a safety airbag, which is connected to the wing plastic frame 1 through fasteners. The fasteners are bolts, airbag nuts and gaskets 6. The wing plastic frame 1 is assembled with the wing foam 3. The wing protective surface 4 is clamped with the plastic frame 1 through the clamping strip 2 to achieve overall covering.

[0038] The airbag explosion zone reinforcement structure may be a metal airbag box 9, and the metal airbag box 9 is connected to the wing airbag assembly 5 through an airbag nut and a gasket 6. The present invention adds an airbag box structure 9 to the rear independent wing of the car with airbags, and uses the metal airbag box 9 to strengthen the structure of the airbag explosion area, thereby protecting the wing plastic frame 1 and preventing the plastic frame from breaking and flying out. Based on the passing of the rear independent wing airbag explosion test, the safety of rear passengers in passenger cars during a car collision is guaranteed. Specifically, the airbag cavity is assembled to integrate a metal airbag box. During the airbag explosion process, the metal airbag box is relied on to withstand the airbag explosion force, thereby preventing the wing plastic frame 1 from being deformed and breaking and flying out.

[0039] The airbag blasting zone reinforcement structure can also be a fabric hinge structure 8. The fabric hinge structure 8 is added to the rear independent wing of the car with airbags, and the fabric hinge structure 8 is embedded and injection molded into the wing plastic frame 1 to strengthen the structure of the airbag blasting area, protect the wing plastic frame 1, and prevent the plastic frame from breaking and flying out. Based on the passing of the rear independent wing airbag blasting test, the safety of the rear passengers of the passenger car in the event of a car collision is guaranteed. Specifically, the main material of the fabric hinge structure 8 is nylon, woven into a mesh, and the process of embedded injection molding is adopted to achieve integral molding with the wing plastic frame 1. The fabric hinge has a high strength, and the strength of the plastic parts in the area covered by the fabric hinge is enhanced.

[0040] The present invention adds independent rear side wings to the rear seats of the car, and arranges the airbags therein, so that when the whole vehicle collides, the airbags can expand quickly to buffer the impact force, thereby providing certain protection for the life safety of the passengers in the car. This structure not only provides storage space for the airbags, but also ensures the correct deployment shape of the airbags and provides overall support for the airbags when the airbags are working. Compared with the textured surface design of the plastic parts of ordinary side wings, this side wing adopts foaming and skin lamination technology to improve the comfort and visual effect of the side wing, and improves the appearance and matching requirements of the side wing guard. Compared with other independent side wing assemblies with airbags: other side wing airbags have a liter capacity of 8L; while this product uses an airbag with a liter capacity of 14.5L, and the low-temperature airbag explosion has higher requirements on the skeleton strength.

[0041] Example 1

[0042] An independent wing with an airbag and an airbag bursting zone reinforcement structure is connected to a body sheet metal via a wing sheet metal clip 7, and comprises a wing plastic frame 1 fixed to the body, a wing foam 3, a wing protective surface 4, a wing airbag assembly 5 and an airbag bursting zone reinforcement structure.

[0043] The wing airbag assembly 5 includes a safety airbag, which is connected to the wing plastic frame 1 through fasteners. The fasteners are bolts, airbag nuts and gaskets 6. The wing plastic frame 1 is assembled with the wing foam 3. The wing protective surface 4 is clamped with the plastic frame 1 through the clamping strip 2 to achieve overall covering.

[0044] The reinforcement structure of the airbag explosion area is a metal airbag box 9, which is connected to the wing airbag assembly 5 through an airbag nut and a gasket 6. The airbag box structure is added to the independent wing of the rear row of the car with airbags, and the metal airbag box is used to strengthen the structure of the airbag explosion area to protect the plastic frame 1 of the wing and prevent the plastic frame from breaking and flying out. Based on the passing of the rear seat independent wing airbag explosion test, the safety of the rear passengers of the passenger car in the event of a car collision is guaranteed. The airbag cavity adopts an assembly method to integrate the metal airbag box. During the airbag explosion process, the metal airbag box 9 is relied on to withstand the airbag explosion force to prevent the plastic frame 1 of the wing from being deformed and breaking and flying out.

[0045] Example 2

[0046] An independent wing with an airbag and an airbag bursting zone reinforcement structure is connected to a body sheet metal via a wing sheet metal clip 7, and comprises a wing plastic frame 1 fixed to the body, a wing foam 3, a wing protective surface 4, a wing airbag assembly 5 and an airbag bursting zone reinforcement structure.

[0047] The wing airbag assembly 5 includes a safety airbag, which is connected to the wing plastic frame 1 through fasteners. The fasteners are bolts, airbag nuts and gaskets 6. The wing plastic frame 1 is assembled with the wing foam 3. The wing protective surface 4 is clamped with the plastic frame 1 through the clamping strip 2 to achieve overall covering.

[0048] The airbag explosion zone reinforcement structure can also be a fabric hinge structure 8. The fabric hinge structure 8 is added to the rear independent wing of the car with airbags, and the fabric hinge structure 8 is embedded and injection molded into the wing plastic frame 1 to strengthen the structure of the airbag explosion area, protect the wing plastic frame 1, and prevent the plastic frame from breaking and flying out. Based on the passing of the rear independent wing airbag explosion test, the safety of the rear passengers of the passenger car in the event of a car collision is guaranteed. The fabric hinge structure 8 is mainly made of nylon, woven into a mesh, and is formed integrally with the wing plastic frame 1 by an embedded injection molding process. The fabric hinge has a high strength, and the strength of the plastic parts in the area covered by the fabric hinge is enhanced.

[0049] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An independent wing with airbag and airbag bursting zone reinforcement structure, characterized in that: It is connected to the body sheet metal through a wing sheet metal clip (7), and comprises a wing plastic frame (1), a wing foam (3), a wing protective surface (4), a wing airbag assembly (5) and an airbag explosion zone reinforcement structure; The wing airbag assembly (5) comprises a safety airbag, which is connected to the wing plastic frame (1) via a fastener; the wing plastic frame (1) and the wing foam (3) are assembled together; the wing protective surface (4) is connected to the plastic frame (1) via a clamping strip (2) to achieve overall covering; the airbag explosion zone reinforcement structure is used to protect the wing plastic frame (1) to prevent the plastic frame from breaking and flying out.

2. The independent wing with airbag and airbag bursting zone reinforcement structure according to claim 1, characterized in that: The side wing plastic frame (1) is an integral supporting structure and is fixed to the vehicle body.

3. The independent wing with airbag and airbag bursting zone reinforcement structure according to claim 1, characterized in that: The side wing foam (3) is filled in the side wing plastic frame (1) to realize that the area in contact with the human body is a soft area.

4. The independent wing with airbag and airbag bursting zone reinforcement structure according to claim 1, characterized in that: The side wing protective surface (4) is in a wrapping form and is wrapped around the outside of the side wing foam (3).

5. The independent wing with airbag and airbag bursting zone reinforcement structure according to claim 1, characterized in that: The fasteners are bolts, air bag nuts and washers (6).

6. The independent wing with airbag and airbag bursting zone reinforcement structure according to claim 1, characterized in that: The airbag bursting zone reinforcement structure is a metal airbag box (9) integrated in the airbag cavity of the wing airbag assembly (5); the metal airbag box (9) is connected to the wing airbag assembly (5) via an airbag nut and a gasket (6).

7. The independent wing with airbag and airbag bursting zone reinforcement structure according to claim 1, characterized in that: The airbag bursting zone reinforcement structure is a fabric hinge structure (8), and the fabric hinge structure (8) is embedded and injection-molded into the side wing plastic frame (1).

8. The independent wing with airbag and airbag bursting zone reinforcement structure according to claim 7, characterized in that: The fabric hinge structure (8) is mainly made of nylon and is woven into a mesh shape. The fabric hinge structure (8) is formed integrally with the wing plastic frame (1) by using an inlay injection molding process.

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