Air bag mounting structure and safety air bag carrier

Abstract

The utility model provides an air bag mounting structure and a safety air bag carrier. The air bag mounting structure comprises a first structural layer, an assembly frame structure, an air bag shell and a target functional layer. The first structure layer comprises a weakening area; the assembling frame structure is arranged on the first surface and used for being connected with an airbag shell. The target functional layer is arranged on the second surface and fixedly connected with the first structural layer, the target functional layer covers the weakening area of the first structural layer, and the target functional layer comprises a tearing part and an overturning hinge part; the weakening area of the first structural layer corresponds to the tearing part of the target functional layer and the overturning hinge part in position, and the weakening area of the first structural layer and the tearing part of the target functional layer can be torn under the condition of being impacted by the air bag, so that the first structural layer and the target functional layer can be accurately torn to form a pop-up window when the air bag is triggered; the overturning hinge part of the target functional layer is not broken or torn, it is guaranteed that the broken part of the first structural layer is not out of control and flies out, and therefore it is guaranteed that the safety of passengers is not affected while the airbag is rapidly unfolded.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobiles and flying cars, and in particular to an airbag mounting structure and a safety airbag carrier. BACKGROUND

[0002] At present, common automobiles on the market are all equipped with safety devices, among which, airbag components are one of the key components of passive safety, and the airbag components include: driver airbags, passenger side airbags, side airbags, knee airbags, rear windshield airbags, etc.

[0003] Taking a passenger side airbag as an example, a passenger side airbag structure is provided in the instrument panel assembly product structure, and an airbag guide frame is correspondingly arranged in the airbag arrangement area of the instrument panel assembly, the airbag guide frame is arranged between the instrument panel and the airbag housing, the airbag guide frame is provided with an airbag door, and in the process of airbag ejection, the airbag door drives the area corresponding to the instrument panel to open along one side of the turnover hinge part, so that the airbag is ejected from the area corresponding to the airbag door, thereby protecting the passenger.

[0004] However, the processing cost of the airbag guide frame is high, the cost of the injection mold and the gauge used in production is high, the assembly process is complex, and the overall weight of the assembled components is large, so a new airbag mounting structure is needed to replace the traditional airbag guide frame. Content of the utility model

[0005] To solve the above problems, the present application provides an airbag mounting structure and a safety airbag carrier;

[0006] In a first aspect, the present application provides an airbag mounting structure, comprising: a first structure layer, an assembly frame structure and a target function layer;

[0007] The first structure layer comprises a first surface and a second surface arranged opposite to each other, and the first structure layer comprises a weakened area;

[0008] The assembly frame structure is arranged on the first surface and located on the outer circumferential side of the weakened area, and is used for connecting the airbag housing;

[0009] The target function layer is arranged on the second surface and fixedly connected with the first structure layer, the target function layer covers the weakened area, and the target function layer comprises a tearing part and a turnover hinge part;

[0010] The position of the weakened area of the first structure layer corresponds to the positions of the tearing part and the turnover hinge part of the target function layer, so that the weakened area of the first structure layer and the tearing part of the target function layer can be torn under the impact of the airbag, so that the first structure layer and the target function layer can accurately tear to form an ejection window when the airbag is triggered.

[0011] The airbag ensures that the first structure layer and the target functional layer can be accurately torn to form a pop-up window when triggered, the turnover hinge part of the target functional layer is not broken or torn, the broken part of the first structure layer is prevented from flying out uncontrollably, and the fragments are prevented from flying when the first structure layer is broken, thereby ensuring that the airbag is rapidly deployed without affecting the safety of the passengers.

[0012] In some embodiments, the weakening area corresponds to the positions of the tear part and the turnover hinge part, and is located on the inner circumferential side of the assembly frame structure of the first structure layer.

[0013] In some embodiments, the thickness of the weakening area provided on the first structure layer is less than the thickness of the first structure layer; and the thickness of the tear part provided on the target functional layer is less than the thickness of the target functional layer, so that the weakening area and the tear part can be torn under the impact of the airbag.

[0014] In some embodiments, the target functional layer is connected to the second surface of the first structure layer, and the target functional layer protrudes from the second surface of the first structure layer, so that the target functional layer and the second surface of the first structure layer satisfy the non-coplanar condition; or,

[0015] The second surface of the first structure layer is formed with a groove, and the target functional layer is embedded in the groove, so that the target functional layer and the second surface of the first structure layer satisfy the coplanar condition.

[0016] In some embodiments, further comprising: a second structure layer, the second structure layer covering a side of the first structure layer close to the second surface, for covering the target functional layer and the first structure layer;

[0017] A third structure layer, the third structure layer covering a side of the second structure layer away from the first structure layer;

[0018] The second structure layer is a soft layer with a thickness, and the third structure layer is a skin layer.

[0019] In some embodiments, the target functional layer is a single-layer structure or a composite layer structure;

[0020] When the target functional layer is a single-layer structure, a modified thermoplastic polyolefin or a modified thermoplastic elastomer material is used;

[0021] When the target functional layer is a composite layer structure, it includes at least one first functional layer and at least one second functional layer, the second functional layer is close to the second surface, and the first functional layer is provided on a side of the second functional layer away from the second surface;

[0022] The first functional layer uses a modified thermoplastic polyolefin or a modified thermoplastic elastomer material;

[0023] The second functional layer is made of aramid fiber, poly-p-phenylene benzobisoxazole fiber, carbon fiber, basalt fiber, glass fiber, aramid fiber and glass fiber mixed fiber, aramid fiber and basalt fiber mixed fiber, poly-p-phenylene benzobisoxazole fiber and aramid fiber mixed fiber, poly-p-phenylene benzobisoxazole fiber and glass fiber mixed fiber, and poly-p-phenylene benzobisoxazole fiber and basalt fiber mixed fiber material.

[0024] In some embodiments, the thickness of the target functional layer is 0.01-3.50 mm.

[0025] In some embodiments, the airbag housing is further provided on the first surface and connected with the assembly frame structure; the airbag housing is formed with a receiving space for assembling the airbag body, and the slot of the airbag housing faces the first surface and corresponds to the weakened area.

[0026] In some embodiments, the assembly frame structure comprises a first clamping structure;

[0027] The airbag housing comprises a second clamping structure, and the first clamping structure and the second clamping structure are clamped to realize the connection between the first structure layer and the airbag housing.

[0028] In some embodiments, the first clamping structure comprises a clamping groove and / or a clamping jaw;

[0029] The second clamping structure is correspondingly provided with a clamping jaw and / or a clamping groove;

[0030] The clamping groove and the clamping jaw are matched and clamped to realize the clamping between the first clamping structure and the second clamping structure.

[0031] In some embodiments, the assembly frame structure is provided on the first surface of the first structure layer and extends away from the second surface to form an assembly opening, and the clamping groove and / or the clamping jaw are circumferentially spaced on the side wall of the assembly frame structure.

[0032] The side wall of the airbag housing is correspondingly provided with the clamping jaw and / or the clamping groove to realize the clamping between the airbag housing and the assembly frame structure.

[0033] In some embodiments, the outer circumferential side of the assembly frame structure is provided with a triangular reinforcing rib, and two adjacent edges of the reinforcing rib respectively abut against the outer side wall of the assembly frame structure and the first surface of the first structure layer.

[0034] In a second aspect, the application provides a safety airbag carrier, which comprises the airbag mounting structure and the airbag housing provided on one side of the first surface of the first structure layer of the airbag mounting structure.

[0035] The airbag mounting structure provided by the present application provides a stable connection structure by arranging an assembly frame structure and a target functional layer on opposite sides of the first structure layer, and the assembly frame structure is located at the outer circumferential side of the weakened area of the first surface, so that the airbag assembly part or the airbag shell can be directly mounted. The target functional layer is arranged on the second surface and fixedly connected with the first structure layer, and the target functional layer covers the weakened area of the first structure layer from the second surface; the target functional layer comprises a tearing part and a flip hinge part, the positions of the weakened area of the first structure layer and the tearing part and the flip hinge part of the target functional layer correspond to each other, the weakened area of the first structure layer and the tearing part of the target functional layer can be torn under the impact of the airbag, so as to ensure that the first structure layer and the target functional layer can be accurately torn to form a pop-up window when the airbag is triggered, and the flip hinge part of the target functional layer is not broken or torn, so as to ensure that the broken part of the first structure layer does not fly out uncontrollably, and also prevent the fragments from flying when the first structure layer is broken, thereby ensuring that the airbag is rapidly deployed without affecting the safety of the passengers. BRIEF DESCRIPTION OF DRAWINGS

[0036] The above and other objects, features and advantages of the example embodiments of the present application will be more apparent from the following detailed description read in conjunction with the accompanying drawings, in which several embodiments of the present application are shown by way of example, and wherein the same or corresponding elements are referred to by the same or corresponding reference numerals. In the drawings:

[0037] Figure 1 A top view schematically showing the airbag mounting structure provided by the present embodiment arranged on an instrument panel is shown;

[0038] Figure 2 A sectional view schematically showing the first structure layer, the assembly frame structure and the target functional layer of the airbag mounting structure provided by the present embodiment along the line A-A is shown; Figure 1

[0039] Figure 3 (a)(b)(c)(d)(e) schematically show the target functional layer, the tearing part and the flip hinge part of the airbag mounting structure provided by the present embodiment;

[0040] Figure 4 (a)(b)(c)(d)(e) schematically show the first structure layer and the weakened area of the airbag mounting structure provided by the present embodiment;

[0041] Figure 5 A sectional view schematically showing the target functional layer of the airbag mounting structure provided by the present embodiment arranged in the groove of the first structure layer is shown; Figure 2

[0042] Figure 6 A sectional view schematically showing the target functional layer of the airbag mounting structure provided by the present embodiment arranged in the groove of the first structure layer is shown;​​Figure 5 The provided airbag mounting structure sets a cross-sectional schematic view of the second structural layer and the third structural layer, and shows that the weakening area of the first structural layer according to the application adopts an injection molding notch weakening mode;

[0043] Figure 7 The schematic view shows the embodiment Figure 6 The provided another airbag mounting structure sets a cross-sectional schematic view of the second structural layer and the third structural layer, and shows that the weakening area of the first structural layer according to the application adopts a laser drilling weakening mode;

[0044] Figure 8 The schematic view shows the embodiment provided by the target functional layer as a composite layer structure.

[0045] Figure 9 The schematic view shows the structure schematic view of the airbag mounting structure provided by the embodiment assembling the airbag shell;

[0046] Figure 10 The schematic view shows the cross-sectional schematic view of the airbag mounting structure and the airbag carrier provided by the embodiment along the line B-B of Figure 1 ;

[0047] Figure 11 The schematic view shows the cross-sectional schematic view of another airbag mounting structure and the airbag carrier provided by the embodiment along the line B-B of Figure 1 ;

[0048] Figure 12 The schematic view shows the cross-sectional schematic view of another airbag mounting structure and the airbag carrier provided by the embodiment along the line B-B of Figure 1 ;

[0049] Explanation of reference numerals:

[0050] 10. First structural layer; 11. Weakening area; 12. Groove; 20. Assembly frame structure; 21. First clamping structure; 22. Reinforcing rib; 30. Target functional layer; 31. Tearing part; 32. Turnover hinge part; 33. First functional layer; 34. Second functional layer; 40. Second structural layer; 50. Third structural layer; 60. Airbag shell; 61. Second clamping structure; 70. Airbag body; 80. Gas generator. DETAILED DESCRIPTION

[0051] The embodiments of the present disclosure will be described in further detail below with reference to the drawings and examples. The following detailed description of the examples and the accompanying drawings are provided for the purpose of illustrating the principles of the present disclosure, and are not intended to limit the scope of the present disclosure, which can be embodied in a variety of different forms, not limited to the specific examples disclosed herein, but include all technical solutions falling within the scope of the claims.

[0052] The present disclosure provides these examples in order to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the composition of materials, numerical expressions and values set forth in these examples should be interpreted as merely exemplary, and not as a limitation.

[0053] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the purpose of facilitating the description of the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the present disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0054] In addition, "first", "second", and similar words used in the present disclosure do not indicate any order, number, or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0055] It should also be noted that, in the description of the present disclosure, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be interpreted broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances. When it is described that a specific device is located between a first device and a second device, there can be an intermediate device between the specific device and the first device or the second device, or there can be no intermediate device.

[0056] All terms used herein are intended to have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs, unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0057] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, where appropriate, techniques, methods, and apparatus should be considered part of the description of the application.

[0058] The airbag guide frame is an important component for connecting the airbag housing and the instrument panel part, wherein the airbag guide frame is provided with an airbag door which can be flipped open to enable the airbag to be ejected from the airbag door area to protect the people in the vehicle.

[0059] However, the production and assembly of the airbag guide frame with the instrument panel part increases the cost and prolongs the production period. In particular, the process of vibration friction welding is involved in the assembly process, which requires the production of special membranes, further increasing the cost.

[0060] To replace the traditional airbag guide frame with high cost and complex assembly process, the present application proposes a new structure which not only reduces the production cost and simplifies the assembly process, but also ensures that the safety airbag can be ejected accurately when needed to provide effective protection for the passengers in the vehicle.

[0061] Embodiment one

[0062] As shown in Figures 1-2 The present application proposes an airbag mounting structure, comprising: a first structure layer 10, an assembly frame structure 20 and a target function layer 30;

[0063] The first structure layer 10 comprises a first surface and a second surface arranged opposite to each other, and the first structure layer 10 comprises a weakened area 11;

[0064] The assembly frame structure 20 is arranged on the first surface and located on the outer circumferential side of the weakened area 11, and is used for connecting the airbag housing 60;

[0065] The target functional layer 30 is arranged on the second surface and fixedly connected with the first structural layer 10, the target functional layer 30 covers the weakened area 11 of the first structural layer 10, the target functional layer 30 comprises a tearing part 31 and a flip hinge part 32, the weakened area 11 of the first structural layer 10 corresponds to the positions of the tearing part 31 and the flip hinge part 32 of the target functional layer 30, the weakened area 11 of the first structural layer 10 and the tearing part 31 of the target functional layer 30 can be torn in the case of airbag impact, so as to ensure that the first structural layer 10 and the target functional layer 30 can be accurately torn to form a pop-up window when the airbag is triggered, while the flip hinge part 32 of the target functional layer 30 is not broken or not torn, so as to ensure that the broken part of the first structural layer 10 does not fly out of control, and also to prevent the fragments from flying when the first structural layer 10 is broken, so as to ensure that the airbag is rapidly deployed without affecting the safety of the passenger.

[0066] It can be understood that the first structural layer 10 is a basic component of the airbag mounting structure, has a certain structural strength and plays a role of bearing other components, the first structural layer 10 can be a plane, a curved surface or other irregular surfaces such as undulating wave surfaces, and has two opposite surfaces, a first surface and a second surface.

[0067] The first surface is the back side of the part invisible to the passenger in the vehicle, and can also be the side facing the interior of the vehicle, while the second surface is the front side of the part facing the passenger in the vehicle, and can also be the side facing away from the interior of the vehicle. The weakened area 11 is arranged on the first structural layer 10, and the weakened area 11 can be used for a specific area of airbag pop-up.

[0068] For the setting position of the first structural layer 10, taking a car as an example, the airbags included are driver airbag, passenger side airbag, side airbag, knee airbag, rear windshield airbag, etc., and the first structural layer 10 can be arranged in the corresponding area to facilitate the installation of airbag assembly parts.

[0069] The assembly frame structure 20 can be arranged on the first surface of the first structural layer 10 and around the weakened area 11, and provides one or more than one fixed connection point for connecting the airbag body 70 to the vehicle, so as to ensure that the airbag can be deployed in the correct position to maximize its protection effect. The assembly frame structure 20 can be integrally formed with the first structural layer 10 by injection molding, so as to meet the connection strength and improve the production efficiency.

[0070] The target functional layer 30 is attached to the second surface of the first structural layer 10 and closely combined with the first structural layer 10, and the target functional layer 30 and the first structural layer 10 can be combined on the second surface of the first structural layer 10 by ultrasonic welding, insert injection molding, secondary injection molding, thermal compounding, laser welding and bonding processes.

[0071] The thickness of the target functional layer 30 is 0.01-3.50 mm.

[0072] As shown in (a) (b) (c) (d) (e) in the figure, the tear part 31 of the target functional layer 30 can be similar to U-shaped, H-shaped, S-shaped, single Y-shaped or double Y-shaped, etc. The setting of the tear part 31 of the target functional layer 30 ensures that the tear part 31 of the target functional layer 30 can tear along the predetermined path when the airbag rapidly inflates. The flip hinge part 32 of the target functional layer 30 does not break or tear, which ensures that the target functional layer 30 and the first structural layer 10 closely combined with the target functional layer 30 do not fly out uncontrollably, and can also prevent the fragments from splashing when the first structural layer 10 breaks, thereby ensuring that the airbag rapidly deploys without affecting the safety of the passengers. Figures 1-4 As shown in (a) (b) (c) (d) (e) in the figure, the tear part 31 of the target functional layer 30 can be similar to U-shaped, H-shaped, S-shaped, single Y-shaped or double Y-shaped, etc. The setting of the tear part 31 of the target functional layer 30 ensures that the tear part 31 of the target functional layer 30 can tear along the predetermined path when the airbag rapidly inflates. The flip hinge part 32 of the target functional layer 30 does not break or tear, which ensures that the target functional layer 30 and the first structural layer 10 closely combined with the target functional layer 30 do not fly out uncontrollably, and can also prevent the fragments from splashing when the first structural layer 10 breaks, thereby ensuring that the airbag rapidly deploys without affecting the safety of the passengers.

[0073] As shown in (a) (b) (c) (d) (e) in the figure, the tear part 31 of the target functional layer 30 can be similar to U-shaped, H-shaped, S-shaped, single Y-shaped or double Y-shaped, etc. The setting of the tear part 31 of the target functional layer 30 ensures that the tear part 31 of the target functional layer 30 can tear along the predetermined path when the airbag rapidly inflates. The flip hinge part 32 of the target functional layer 30 does not break or tear, which ensures that the target functional layer 30 and the first structural layer 10 closely combined with the target functional layer 30 do not fly out uncontrollably, and can also prevent the fragments from splashing when the first structural layer 10 breaks, thereby ensuring that the airbag rapidly deploys without affecting the safety of the passengers. Figure 3 As shown in (a) (b) (c) (d) (e) in the figure, the tear part 31 of the target functional layer 30 can be similar to U-shaped, H-shaped, S-shaped, single Y-shaped or double Y-shaped, etc. The setting of the tear part 31 of the target functional layer 30 ensures that the tear part 31 of the target functional layer 30 can tear along the predetermined path when the airbag rapidly inflates. The flip hinge part 32 of the target functional layer 30 does not break or tear, which ensures that the target functional layer 30 and the first structural layer 10 closely combined with the target functional layer 30 do not fly out uncontrollably, and can also prevent the fragments from splashing when the first structural layer 10 breaks, thereby ensuring that the airbag rapidly deploys without affecting the safety of the passengers.

[0074] As shown in (a) (b) (c) (d) (e) in the figure, the tear part 31 of the target functional layer 30 can be similar to U-shaped, H-shaped, S-shaped, single Y-shaped or double Y-shaped, etc. The setting of the tear part 31 of the target functional layer 30 ensures that the tear part 31 of the target functional layer 30 can tear along the predetermined path when the airbag rapidly inflates. The flip hinge part 32 of the target functional layer 30 does not break or tear, which ensures that the target functional layer 30 and the first structural layer 10 closely combined with the target functional layer 30 do not fly out uncontrollably, and can also prevent the fragments from splashing when the first structural layer 10 breaks, thereby ensuring that the airbag rapidly deploys without affecting the safety of the passengers. Figure 4 As shown in (a) (b) (c) (d) (e) in the figure, the tear part 31 of the target functional layer 30 can be similar to U-shaped, H-shaped, S-shaped, single Y-shaped or double Y-shaped, etc. The setting of the tear part 31 of the target functional layer 30 ensures that the tear part 31 of the target functional layer 30 can tear along the predetermined path when the airbag rapidly inflates. The flip hinge part 32 of the target functional layer 30 does not break or tear, which ensures that the target functional layer 30 and the first structural layer 10 closely combined with the target functional layer 30 do not fly out uncontrollably, and can also prevent the fragments from splashing when the first structural layer 10 breaks, thereby ensuring that the airbag rapidly deploys without affecting the safety of the passengers.

[0075] The target functional layer 30 is a single layer structure or a composite layer structure; in the case of a single layer structure, modified thermoplastic polyolefin or modified thermoplastic elastomer material can be used; in the case of a composite layer structure, a composite material of modified thermoplastic polyolefin or modified thermoplastic elastomer material combined with a single fiber or multiple types of fiber can be used, and the types of fiber include but are not limited to aramid fiber, poly-p-phenylene benzobisoxazole fiber, carbon fiber, basalt fiber, glass fiber, aramid fiber and glass fiber hybrid fiber, aramid fiber and basalt fiber hybrid fiber, poly-p-phenylene benzobisoxazole fiber and aramid fiber hybrid fiber, poly-p-phenylene benzobisoxazole fiber and glass fiber hybrid fiber, and poly-p-phenylene benzobisoxazole fiber and basalt fiber hybrid fiber material, etc.

[0076] It can be understood that the thickness of the weakening area 11 provided in the first structure layer 10 is less than the thickness of the first structure layer 10; the thickness of the tear part 31 provided in the target functional layer 30 is less than the thickness of the target functional layer 30, so that the weakening area 11 and the tear part 31 can tear along the predetermined path when subjected to the airbag impact, thereby forming a clear airbag ejection window, which helps the airbag to expand in the expected direction and path, and ensures that the airbag quickly and accurately covers the area that needs to be protected.

[0077] The weakening area 11 is located on the first structure layer 10, which is usually part of the instrument panel or other interior trim parts.

[0078] The first structure layer 10 can form the weakening area 11 by injection molding notch weakening, such as providing special geometric shapes (such as V-shaped, U-shaped, trapezoidal grooves, etc.) on the first structure layer 10, forming a local thickness reduction in a specific direction, so that the tearing path is controllable. When the airbag is ejected, the first structure layer 10 will preferentially tear from these weakening areas 11, thereby forming a regular opening.

[0079] The first structure layer 10 can also process continuous or discontinuous deep holes or shallow holes in the weakening area 11 of the first structure layer 10 by laser weakening, so that it becomes a weak and easily broken part of the first structure layer 10.

[0080] The first structure layer 10 can also process cutting lines or notches in the weakening area 11 of the first structure layer 10 by pre-cutting or pre-notching, so that it becomes a weak and easily broken part of the first structure layer 10.

[0081] When the airbag is ejected, the first structure layer 10 will preferentially break from the weakening area 11, thereby forming a regular opening on the first structure layer 10.

[0082] The target functional layer 30 can be processed by laser weakening to form continuous or discontinuous deep or shallow holes at the tear part 31 of the target functional layer 30, so as to become the weak and easy-to-break part of the target functional layer 30.

[0083] The target functional layer 30 can also be processed by pre-cutting or pre-scar to form a cutting line or a scar at the tear part 31 of the target functional layer 30, so as to become the weak and easy-to-break part of the target functional layer 30.

[0084] When the airbag is ejected, the target functional layer 30 will preferentially break from the tear part 31, thereby forming a regular opening on the target functional layer 30. Since the turnover hinge part 32 of the target functional layer 30 is not laser weakened, pre-cut or pre-scar, the target functional layer 30 will not break or tear at the turnover hinge part 32, and the turnover hinge part 32 ensures that the target functional layer 30 and the first structure layer 10 do not fly out of control when the airbag is ejected, thereby ensuring that the airbag is quickly deployed without affecting the safety of the passenger.

[0085] As shown in FIG. 1, Figure 2 In some embodiments, the target functional layer 30 is connected to the second surface of the first structure layer 10, and the target functional layer 30 protrudes from the second surface of the first structure layer 10, so that the target functional layer 30 and the second surface of the first structure layer 10 satisfy the non-coplanar condition.

[0086] As shown in FIG. 1, Figure 5 In some embodiments, the second surface of the first structure layer 10 is formed with a groove 12, and the target functional layer 30 is embedded in the groove 12, so that the target functional layer 30 and the second surface of the first structure layer 10 satisfy the coplanar condition.

[0087] It can be understood that by processing the groove 12 on the second surface of the first structure layer 10 and embedding the target functional layer 30 therein, seamless combination of the two can be achieved, thereby improving the overall integrity and aesthetics of the structure.

[0088] The coplanar condition means that the outer surface of the target functional layer 30 and the second surface of the first structure layer 10 are kept on the same surface, so as to ensure that the appearance of the first structure layer 10 (which can be an instrument panel or an interior part, etc.) is flat and smooth, and there is no part that is conspicuous or out of harmony due to the existence of the target functional layer 30, thereby improving the user experience. Through the embedded design, the connection between the target functional layer 30 and the first structure layer 10 is more close, and the risk of loosening or falling off is reduced.

[0089] The groove 12 can be formed by injection molding, and the groove 12 is directly formed by a mold when the first structure layer 10 is manufactured.

[0090] The design of the groove 12 can also help fix the position of the target functional layer 30 and prevent it from shifting or deforming during long-term use. Common groove 12 shapes include rectangles, circles, or irregular shapes, and the specific choice depends on the shape and functional requirements of the target functional layer 30. In addition, to further enhance the visual effect, patterns, skin textures, or raised characters, letters, company or agency logos, etc. can be set on the target functional layer 30, and different color combinations can be used to customize the appearance of the target functional layer 30 and meet the individual needs of users.

[0091] As shown in Figure 6 some embodiments, it also includes a second structural layer 40 covering the side of the first structural layer 10 close to the second surface, used to cover the target functional layer 30 and the first structural layer 10.

[0092] A third structural layer 50 covers the side of the second structural layer 40 away from the first structural layer 10.

[0093] The second structural layer 40 can form a weak area or easy-to-tear area corresponding to the shape and position of the tear part 31 of the target functional layer 30 through laser weakening, pre-cutting, or other methods.

[0094] The third structural layer 50 can form a weak area or easy-to-tear area corresponding to the shape and position of the tear part 31 of the target functional layer 30 through pre-cutting or other methods.

[0095] The second structural layer 40 is a soft layer with a thickness, and the third structural layer 50 is a skin layer.

[0096] It can be understood that, in order to balance the aesthetics, comfort, and safety of the airbag mounting structure, the second structural layer 40 and the third structural layer 50 are sequentially added to the first structural layer 10.

[0097] The second structural layer 40 is set on the side of the first structural layer 10 close to the second surface, mainly used to cover the target functional layer 30 and the first structural layer 10. The second structural layer 40 can be made of a soft material with a thickness (such as polyurethane foam material, polyolefin foam material, three-dimensional fabric material, or other elastic materials), which plays a role in buffering, filling, and decoration.

[0098] Wherein, the second structural layer 40 can act as a soft layer to absorb part of the impact force and reduce the injury to the passenger when the airbag pops out. The soft layer can also fill the gap between the first structural layer 10 and the third structural layer 50, making the interior surface more flat. The soft material has certain sound and heat insulation properties, which helps to improve the comfort of the vehicle interior. Thicker second structural layer 40 is suitable for scenarios that require higher cushioning performance (such as high-end vehicles). Thinner second structural layer 40 is suitable for scenarios with limited space or cost sensitivity (such as economy vehicles).

[0099] For example, in the automobile instrument panel assembly, the second structural layer 40 can cover the target functional layer 30 and the first structural layer 10, forming a smooth transition area to ensure that the interior surface has no obvious protrusions or depressions.

[0100] The third structural layer 50 is covered on the side of the second structural layer 40 away from the first structural layer 10, which is usually the skin layer of the vehicle interior (such as leather, fabric, polyvinyl chloride or thermoplastic polyolefin elastomer material, etc.). Directly facing the vehicle occupants, it determines the appearance and touch of the interior.

[0101] Among them, the third structural layer 50 can be leather, applied to high-end vehicles, providing a luxurious and soft touch.

[0102] It can also be fabric, suitable for economy vehicles, which can provide good comfort. It can also be polyvinyl chloride (PVC) or thermoplastic polyolefin elastomer (TPO) plastic material commonly used for imitation leather effect, with the advantages of low cost and easy cleaning.

[0103] As shown in Figure 6 In some embodiments, the weakening area 11 of the first structural layer 10 adopts an injection molding notch weakening method;

[0104] As shown in Figure 7 In some embodiments, the weakening area 11 of the first structural layer 10 adopts a laser drilling weakening method;

[0105] As shown in Figure 8 In some embodiments, the target functional layer 30 is a single-layer structure or a composite layer structure;

[0106] In the case of a single-layer structure of the target functional layer 30, a modified thermoplastic polyolefin or a modified thermoplastic elastomer material is used;

[0107] In the case of a composite layer structure of the target functional layer 30, it includes at least one first functional layer 33 and at least one second functional layer 34, the second functional layer 34 is close to the second surface, and the first functional layer 33 is arranged on the side of the second functional layer 34 away from the second surface;

[0108] The first functional layer 33 is made of modified thermoplastic polyolefin or modified thermoplastic elastomer material, etc.

[0109] The second functional layer 34 uses aramid fiber, poly(p-phenylene benzodioxazole) fiber, carbon fiber, basalt fiber, glass fiber, aramid fiber and glass fiber blended fiber, aramid fiber and basalt fiber blended fiber, poly(p-phenylene benzodioxazole) fiber and aramid fiber blended fiber, poly(p-phenylene benzodioxazole) fiber and glass fiber blended fiber, and poly(p-phenylene benzodioxazole) fiber and basalt fiber blended fiber materials, etc.

[0110] When the target functional layer 30 is a composite layer structure, it can also be a multi-layer structure with two or more layers, such as three, four, or five layers. For example, when the target functional layer 30 is three layers, the middle layer is the second functional layer 34, and the first and third layers are the first functional layers 33, so that the target functional layer 30 has structural strength while also having strong flexibility.

[0111] like Figure 9 As shown, in some embodiments, an airbag housing 60 is also included. The airbag housing 60 is disposed on the first surface and connected to the assembly frame structure 20. The airbag housing 60 has a receiving space for assembling the airbag body 70 and the gas generator 80. The slot of the airbag housing 60 faces the first surface and corresponds to the weakened area 11.

[0112] Understandably, the airbag housing 60 is an important component of the airbag mounting structure, used to provide a precise assembly space for the airbag. It also works in conjunction with the weakened area 11 of the first structural layer 10, the tear portion 31 of the target functional layer 30, the flip hinge portion 32 of the target functional layer 30, and the assembly frame structure 20 of the first structural layer 10 to ensure that the airbag can deploy along a predetermined path when it is deployed.

[0113] The slot of the airbag housing 60 faces the first surface and corresponds to the weakened area 11. The weakened area 11 of the first structural layer 10 corresponds to the position of the tear 31 and the flip hinge 32 of the target functional layer 30, so that the airbag can directly pass through the first structural layer 10 and the target functional layer 30 when it is deployed, forming a clear airbag outlet.

[0114] The airbag housing 60 is connected to the assembly frame structure 20 disposed on the first surface of the first structural layer 10, which can greatly simplify the assembly process.

[0115] Due to the traditional airbag housing 60 assembly process, usually using vibration friction welding process, need to manufacture vibration friction welding die and vibration friction welding production equipment, greatly improve the production cost, welding process needs personnel and time investment, the production cost is higher. Directly connecting the airbag housing 60 through the assembly frame structure 20 of the first structure layer 10 improves the installation efficiency and reduces the production cost.

[0116] Among them, the main function of the airbag housing 60 is to provide a stable assembly space 6 for the airbag. The airbag can be directly ejected from the airbag housing 60. The inner wall of the airbag housing 60 is a whole without obstruction, ensuring the timeliness and smoothness of the airbag ejection. The shape of the airbag housing 60 can be adjusted according to the shape of the airbag. Common shapes include rectangles, circles or special shapes to adapt to the needs of different vehicle models and airbag types.

[0117] As shown in Figure 9 In some embodiments, the end of the airbag housing 60 close to the slot abuts against the weakened area 11 of the first structure layer 10.

[0118] It can be understood that during normal use, the weakened area 11 needs to bear a certain pressure, which may cause the weakened area 11 to fail (such as collapse) in advance. By allowing the end of the airbag housing 60 close to the slot to abut against the weakened area 11, additional support can be provided to the weakened area 11 to prevent it from collapsing and breaking when subjected to pressure.

[0119] As shown in Figure 9 In some embodiments, the assembly frame structure 20 includes a first clamping structure 21; the airbag housing 60 includes a second clamping structure 61, which is clamped by the first clamping structure 21 and the second clamping structure 61 to realize the connection between the first structure layer 10 and the airbag housing 60.

[0120] It can be understood that the clamping structure is a connection method based on the principle of mechanical locking. Through the corresponding setting of geometric shapes, the clamping structure realizes the quick assembly and fixation between two components. Compared with the traditional bolt, vibration friction welding and adhesive fixation methods, the clamping structure does not require additional tools or materials, and can significantly improve the assembly efficiency. In this embodiment, the first clamping structure 21 is provided on the assembly frame structure 20, and the second clamping structure 61 is provided on the airbag housing 60. The connection between the first structure layer 10 and the airbag housing 60 is realized by clamping, which ensures that the airbag housing 60 is firmly fixed on the first structure layer 10. And the clamping structure physically locks to realize fixed connection, has higher tensile strength and vibration resistance, can effectively prevent the airbag module from loosening or falling off during vehicle driving.

[0121] The first snap-fit ​​structure 21 can be adjacent to the weakened area 11 and placed on the outer periphery of the weakened area 11 to avoid obstructing the slot of the airbag housing 60.

[0122] The first snap-fit ​​structure 21 can form a groove-shaped structure (such as a slot or hole). To facilitate assembly, the first snap-fit ​​structure 21 can be provided with a guide slope to guide the second snap-fit ​​structure 61 to be smoothly inserted into the groove-shaped structure, and to guide the first snap-fit ​​structure 21 to be smoothly inserted and locked.

[0123] The first snap-fit ​​structure 21 is made of the same material as the first structural layer 10 (such as modified plastic or composite material) to ensure the consistency and durability of the overall structure.

[0124] The second snap-fit ​​structure 61 can be a protruding structure located on the outer peripheral edge of the airbag housing 60, corresponding to the first snap-fit ​​structure 21.

[0125] The second snap-fit ​​structure 61 can be a protruding structure (such as a buckle or a boss) used to be inserted into or locked into the first snap-fit ​​structure 21.

[0126] Furthermore, in order to achieve rapid assembly, the second snap-fit ​​structure 61 can adopt an elastic arm, which can generate elastic deformation when inserted and then return to its original shape to complete the locking.

[0127] It should be noted that the first snap-fit ​​structure 21 can be a protruding structure (such as a buckle or a boss), and the second snap-fit ​​structure 61 can be a grooved structure (such as a slot or a hole). Furthermore, to further improve the stability of the connection between the airbag housing 60 and the first structural layer 10, the first snap-fit ​​structure 21 includes both protruding and grooved structures, and is offset at intervals along the outer periphery of the weakened area 11 to enhance the fixing effect. The second snap-fit ​​structure 61, corresponding to the first snap-fit ​​structure 21, includes both grooved and protruding structures, is disposed in the groove of the airbag housing 60, and is offset at intervals along the outer periphery of the groove.

[0128] To facilitate assembly, the second snap-fit ​​structure 61 can be designed with a guide ramp to guide the first snap-fit ​​structure 21 to be smoothly inserted and locked.

[0129] like Figure 9 As shown, in some embodiments, the first snap-fit ​​structure 21 extends in a direction away from the second surface, and the first snap-fit ​​structure 21 includes a slot and / or a claw; the second snap-fit ​​structure 61 is correspondingly provided with a claw and / or a slot.

[0130] The first locking structure 21 and the second locking structure 61 are locked together by the cooperation of the slot and the claw.

[0131] It can be understood that the card slot is a recessed structure for receiving the card jaw and providing a locking space. The card jaw is a protruding structure (usually with elasticity or barb) for inserting into the card slot and forming a physical lock.

[0132] Through the cooperation of the card slot and the card jaw, quick assembly and firm connection between the two components can be achieved.

[0133] The first clamping structure 21 extends away from the second surface to ensure that it can be correctly aligned with the second clamping structure 61 on the airbag housing 60 and complete clamping.

[0134] The cooperation of the card slot and the card jaw does not require additional tools or materials, which can significantly improve assembly efficiency. And has high tensile strength, can effectively prevent the airbag housing 60 with airbag from loosening or falling off during vehicle driving.

[0135] Among them, the first clamping structure 21 can be a groove for receiving the card jaw of the second clamping structure 61; The first clamping structure 21 can also be a protruding shape (such as a flexible arm or a barb) for inserting into the card slot of the second clamping structure 61; The first clamping structure 21 can also contain a card slot and a card jaw to meet more complex connection requirements.

[0136] Similarly, the corresponding second clamping structure 61 can be a protruding shape (such as a flexible arm or a barb) for inserting into the card slot of the first clamping structure 21; The second clamping structure 61 can also be a groove for receiving the card jaw of the first clamping structure 21. The second clamping structure 61 can also contain a card slot and a card jaw, which are arranged in a staggered manner to meet the connection requirements and improve the stability after connection.

[0137] As shown in Figure 10 In some embodiments, the side wall of the airbag housing 60 is circumferentially spaced apart and corresponds to a plurality of second clamping structures 61 to achieve clamping of the airbag housing 60 and the first clamping structure 21 of the assembly frame structure 20. It can be understood that the assembly frame structure 20 on the first structure layer 10 realizes the firm and quick connection of the first structure layer 10 and the airbag housing 60.

[0138] The opening shape of the assembly port of the assembly frame structure 20 corresponds to the opening shape of the slot of the airbag housing 60, and the caliber of the assembly port of the assembly frame structure 20 is greater than the caliber of the slot of the airbag housing 60. Corresponding guide structures such as slides, grooves, guide slopes, etc. can be provided on the inside of the assembly port of the assembly frame structure 20 and the outside of the slot of the airbag housing 60, which is beneficial to the precise and quick assembly of the airbag housing 60 and the assembly frame structure 20.

[0139] The connection relationship between the assembly frame structure 20 and the airbag housing 60 is modular, so that the entire airbag module assembly installation structure is more compact, stable and easy to assemble.

[0140] As shown in Figure 10 In some embodiments, the outer periphery of the assembly frame structure 20 is provided with triangular reinforcing ribs 22, and the two adjacent edges of the reinforcing ribs 22 are respectively in abutment with the outer side wall of the assembly frame structure 20 and the first surface of the first structural layer 10.

[0141] The airbag housing 60 is assembled into the assembly frame structure 20 so that the notch is adjacent to the first surface, and there can be no gap or a gap of 0.1mm-1.5mm between the outer side wall of the airbag housing 60 and the inner side wall of the assembly frame structure 20. It can be understood that the triangular reinforcing ribs 22 are provided on the outer periphery of the assembly frame structure 20, which can significantly enhance the overall rigidity and anti-deformation ability of the assembly frame structure 20. The two adjacent edges of the reinforcing ribs 22 are respectively in abutment with the outer side wall of the assembly frame structure 20 and the first surface of the first structural layer 10, forming a stable support structure to prevent the assembly frame structure 20 from bending or collapsing during long-term use or under external force.

[0142] Embodiment Two

[0143] As shown in Figures 9-11 The present application proposes a kind of airbag carrier, including the airbag mounting structure proposed in embodiment one and airbag housing 60, airbag housing 60 is arranged on the side of the first surface of the first structural layer 10 of airbag mounting structure.

[0144] It can be understood that the airbag carrier includes the airbag mounting structure mentioned in the first aspect and the airbag housing 60, the airbag housing 60 is assembled with the assembly frame structure 20 on the first surface of the first structural layer 10 of the airbag mounting structure, the airbag housing 60 is formed with accommodating space for assembling airbag body 70 and gas generator 80, and the notch of the airbag housing 60 faces the first surface and corresponds to the weakened area 11.

[0145] The airbag mounting structure can be produced and tested independently as a modular component, and then integrated with vehicle components (such as instrument panel, knee shield, etc.), which is convenient for subsequent maintenance and replacement.

[0146] The airbag housing 60 is usually made of reinforced modified nylon material, or reinforced modified polypropylene material, or reinforced modified nylon material combined with unidirectional woven fiber reinforced polyamide strip material, or reinforced modified polypropylene material combined with unidirectional woven fiber reinforced polypropylene strip material, etc., which has good mechanical strength and impact resistance.

[0147] The airbag body 70 is usually made of high-strength fabric (such as nylon or polyester fiber), which has good tear resistance and high-temperature resistance. The internal inflation device (such as gas generator 80) can generate a large amount of gas in a very short time, so that the airbag can rapidly expand and deploy.

[0148] When the airbag is triggered, the airbag body 70 is quickly ejected from the airbag housing 60, the weakened area 11 of the first structure layer 10 and the tear part 31 of the target functional layer 30 can be torn under the impact of the airbag, ensuring that the first structure layer 10 and the target functional layer 30 can be accurately torn to form an ejection window when the airbag is triggered, and the turnover hinge part 32 of the target functional layer 30 is not broken or not torn, ensuring that the broken part of the first structure layer 10 does not fly out of control, and also preventing the fragments from flying when the first structure layer 10 is broken, thereby ensuring that the airbag is quickly deployed while ensuring the safety of the passengers.

[0149] As shown in Figures 10-12 , the second clamping structure 61 on the airbag housing 60 is clamped with the first clamping structure 21 of the assembly frame structure 20. As shown in Figure 10 , there can be three second clamping structures 61 in each first clamping structure 21; as shown in Figure 11 , there can be two second clamping structures 61 in each first clamping structure 21; as shown in Figure 12 , there can be one second clamping structure 61 in each first clamping structure 21; it can be understood that there can be one or more than one second clamping structure 61 in each first clamping structure 21. The clamping structure of the second clamping structure 61 of the airbag housing 60 and the first clamping structure 21 of the assembly frame structure 20 in multiple positions makes the entire airbag module assembly mounting structure more stable and safe.

[0150] The airbag mounting structure and the safety airbag carrier provided by the present application can be applied to the instrument panel, knee guard and other areas of the automobile and the flying automobile, and cooperate with the safety airbag to provide collision protection for the driver and the passenger. Taking the automobile as an example, the airbag mounting structure and the safety airbag carrier provided by the present application can be applied to the instrument panel passenger side area, and cooperate with the safety airbag to provide head collision protection for the passenger; and can also be applied to the knee guard area of the driver side and / or the passenger side, and cooperate with the safety airbag to provide knee collision protection for the driver and / or the passenger.

[0151] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An airbag mounting structure, characterized in that, include: The first structural layer includes a first surface and a second surface disposed opposite to each other, and the first structural layer includes a weakened region. An assembly frame structure is disposed on the first surface and located on the outer periphery of the weakened area, for connecting the airbag shell; A target functional layer is disposed on the second surface and fixedly connected to the first structural layer. The target functional layer covers the weakened area and includes a tear portion and a flip hinge portion. The weakened area of ​​the first structural layer corresponds to the position of the tear portion and the flip hinge portion of the target functional layer, so that the weakened area of ​​the first structural layer and the tear portion of the target functional layer can tear under the impact of the airbag, so that the first structural layer and the target functional layer can be accurately torn to form a pop-up window when the airbag is triggered.

2. The airbag mounting structure according to claim 1, characterized in that, The weakened area corresponds to the positions of the torn portion and the flip hinge portion, and is located on the inner periphery of the assembly frame structure of the first structural layer.

3. The airbag installation structure according to claim 1, characterized in that, The thickness of the weakened region in the first structural layer is less than the thickness of the first structural layer; the thickness of the tear portion in the target functional layer is less than the thickness of the target functional layer, so that the weakened region and the tear portion can tear when subjected to the impact of the airbag.

4. The airbag mounting structure according to claim 1, characterized in that, The target functional layer is connected to the second surface of the first structural layer, and the target functional layer protrudes from the second surface of the first structural layer, so that the target functional layer and the second surface of the first structural layer satisfy the condition of non-coplanarity; or... The second surface of the first structural layer has a groove, and the target functional layer is embedded in the groove so that the target functional layer and the second surface of the first structural layer satisfy the coplanar condition.

5. The airbag mounting structure according to claim 1, characterized in that, Also includes: A second structural layer is disposed on the side of the first structural layer near the second surface, and is used to cover the target functional layer and the first structural layer; A third structural layer, which covers the side of the second structural layer that is opposite to the first structural layer; The second structural layer is a soft layer with thickness, and the third structural layer is an epidermal layer.

6. The airbag mounting structure according to claim 1, characterized in that, The target functional layer can be a single-layer structure or a composite layer structure; When the target functional layer is a single-layer structure, it uses materials including modified thermoplastic polyolefin or modified thermoplastic elastomer. When the target functional layer is a composite layer structure, it includes at least one first functional layer and at least one second functional layer, the second functional layer is close to the second surface, and the first functional layer is disposed on the side of the second functional layer away from the second surface; The first functional layer is made of a modified thermoplastic polyolefin or a modified thermoplastic elastomer material; The second functional layer uses fiber materials including aramid fiber, poly(p-phenylene benzodioxazole) fiber, carbon fiber, basalt fiber, glass fiber, aramid fiber and glass fiber mixed fiber, aramid fiber and basalt fiber mixed fiber, poly(p-phenylene benzodioxazole) fiber and aramid fiber mixed fiber, poly(p-phenylene benzodioxazole) fiber and glass fiber mixed fiber, and poly(p-phenylene benzodioxazole) fiber and basalt fiber mixed fiber materials.

7. The airbag mounting structure according to claim 1, characterized in that, The thickness of the target functional layer is 0.01-3.50 mm.

8. The airbag mounting structure according to claim 2, characterized in that, Also includes: An airbag housing, wherein the airbag housing is disposed on the first surface and connected to the assembly frame structure; The airbag housing has a receiving space for assembling the airbag body, and the slot of the airbag housing faces the first surface and corresponds to the weakened area.

9. The airbag mounting structure according to claim 8, characterized in that, The assembly frame structure includes a first snap-fit ​​structure; The airbag housing includes a second snap-fit ​​structure, which is snapped together with the first snap-fit ​​structure to achieve the connection between the first structural layer and the airbag housing.

10. The airbag mounting structure according to claim 9, characterized in that, The first snap-fit ​​structure includes a slot and / or a claw; The second snap-fit ​​structure is provided with the snap claw and / or the snap slot; The first locking structure and the second locking structure are locked together by the cooperation of the slot and the claw.

11. The airbag mounting structure according to claim 10, characterized in that, The assembly frame structure is disposed on the first surface of the first structural layer and extends in a direction away from the second surface to form an assembly opening. The slots and / or the claws are circumferentially spaced on the sidewalls of the assembly frame structure. The sidewall of the airbag housing is provided with the claws and / or the slots at circumferential intervals to achieve the snap-fit ​​between the airbag housing and the assembly frame structure.

12. The airbag mounting structure according to claim 11, characterized in that, The outer periphery of the assembly frame structure is provided with triangular reinforcing ribs, and the two adjacent sides of the reinforcing ribs abut against the outer wall of the assembly frame structure and the first surface of the first structural layer, respectively.

13. An airbag vehicle, characterized in that, include: The airbag mounting structure and airbag housing as described in any one of claims 1-12, wherein the airbag housing is disposed on one side of the first surface of the first structural layer of the airbag mounting structure.

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