Airbag air guide structure

Abstract

The application relates to an airbag air guide structure which comprises an air guide bag main cloth and a first heat insulation sheet. A bolt mounting hole is arranged on the air guide bag main cloth; the first heat insulation sheet is arranged on the side of the air guide bag main cloth, and a first positioning hole is arranged on the first heat insulation sheet; and the bolt mounting hole and the first positioning hole are arranged in upper and lower correspondence in the case that the first heat insulation sheet is folded onto the air guide bag main cloth. The airbag air guide structure is provided with more cloth layers, and at least the problem that the existing air guide bag is easily scalded or burnt through, the air guide bag main cloth is scalded or burnt through, the performance of the air guide bag is affected or the air guide bag is disabled is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile airbag, and in particular to an airbag gas guiding structure. BACKGROUND

[0002] For a pyrotechnic gas generator, high-temperature gas directly enters the airbag after being discharged from the gas generator, which is easy to scald the airbag fabric, resulting in a decrease in the performance of the airbag fabric, and even causes the airbag to rupture in severe cases.

[0003] A conventional solution is to add a gas guiding bag in the airbag, as shown in Figure 1 , and Figure 1 is a structural diagram of a conventional gas guiding bag, and a gas guiding bag for guiding and blocking high-temperature gas and high-temperature residues output by a gas generator is also provided in patent No. CN108891378A and patent No. CN114274911A, to block the high-temperature gas and high-temperature residues output by the gas generator through the gas guiding bag, so as to avoid scalding the gas bag fabric by the high-temperature gas and high-temperature residues. However, since the gas generator itself generates high temperature when discharging gas, the gas generator is also easy to scald the main fabric of the gas guiding bag when in use, and in severe cases, the main fabric of the gas guiding bag can be burned through, thereby affecting the performance of the gas bag or causing the gas bag to fail. SUMMARY

[0004] Therefore, the embodiments of the present application provide an airbag gas guiding structure to at least solve the problem that the existing gas guiding bag is easy to be scalded or burned through, resulting in scalding or burning through of the main fabric of the gas bag, thereby affecting the performance of the gas bag or causing the gas bag to fail.

[0005] The embodiments of the present application provide the following technical solutions:

[0006] The airbag gas guiding structure provided by the embodiments of the present application comprises a gas guiding bag main fabric, and a bolt mounting hole is arranged on the gas guiding bag main fabric, and the airbag gas guiding structure further comprises:

[0007] a first heat insulation sheet, which is arranged on the side of the gas guiding bag main fabric, and a first positioning hole is arranged on the first heat insulation sheet;

[0008] In the case that the first heat insulation sheet is folded onto the gas guiding bag main fabric, the bolt mounting hole and the first positioning hole are arranged in a top-and-bottom corresponding manner.

[0009] Further, in the case that the first heat insulation sheet is folded onto the gas guiding bag main fabric, the bolt mounting hole and the first positioning hole are arranged in a coaxial manner.

[0010] Further, the first heat insulation sheet is multiple, and is arranged on the side of the air guide bag main cloth.

[0011] Further, the first heat insulation sheet is two, and is arranged on the side of the air guide bag main cloth.

[0012] Further, the first heat insulation sheet is two, and is arranged on the side of the air guide bag main cloth.

[0013] Further, the first heat insulation sheet is multiple, and is arranged on the side of the air guide bag main cloth.

[0014] Further, the first heat insulation sheet is multiple, and is arranged on the side of the air guide bag main cloth.

[0015] Further, the first heat insulation sheet is multiple, and is arranged on the side of the air guide bag main cloth.

[0016] Further, the first heat insulation sheet is multiple, and is arranged on the side of the air guide bag main cloth.

[0017] Further, the first heat insulation sheet is multiple, and is arranged on the side of the air guide bag main cloth.

[0018] Further, the first heat insulation sheet is multiple, and is arranged on the side of the air guide bag main cloth.

[0019] Further, the first heat insulation sheet is multiple, and is arranged on the side of the air guide bag main cloth. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the structure schematic view of the prior art air guide bag;

[0021] Figure 2 is the structure schematic view of the air guide structure of the air bag (one) of the present application; is the structure schematic view of the air guide structure of the air bag (one) of the present application;

[0022] Figure 3 Figure 2 is a schematic view of the airbag gas guiding structure of the present application in a folded state;

[0023] Figure 4 Figure 3 is a schematic view of the airbag gas guiding structure of the present application in a folded state (II);

[0024] Figure 5 Figure 4 is a schematic view of the airbag gas guiding structure of the present application in a folded state (III);

[0025] The reference signs of the present application are as follows:

[0026] 10, main cloth of the airbag; 11, bolt mounting hole;

[0027] 20, first heat insulation sheet; 21, first positioning hole;

[0028] 30, second heat insulation sheet; 31, second positioning hole. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is described and explained below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application. Based on the examples provided in the present application, all other examples obtained by those of ordinary skill in the art without making creative efforts fall within the scope of the present application.

[0030] Obviously, the drawings described below are only some examples or embodiments of the present application, and for those of ordinary skill in the art, the present application can be applied to other similar scenarios without making creative efforts based on these drawings. In addition, it can be understood that although the efforts made in this development process can be complex and lengthy, for those of ordinary skill in the art related to the content disclosed in the present application, some design, manufacture or production changes based on the technical content disclosed in the present application are only routine technical means, and should not be understood as insufficient disclosure of the content disclosed in the present application.

[0031] In the present application, "embodiment" means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in the present application can be combined with other embodiments without conflict.

[0032] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms “a,” “an,” “an,” “the,” and similar words used in this application do not indicate quantity limitation and may indicate singular or plural. The terms “comprising,” “including,” “having,” and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units not listed, or may include other steps or units inherent to these processes, methods, products, or devices. The terms “connected,” “linked,” “coupled,” and similar words used in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. “Multiple” used in this application refers to two or more. “And / or” describes the relationship between related objects, indicating that three relationships may exist; for example, “A and / or B” can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following objects are in an "or" relationship. The terms "first," "second," and "third" used in this application are merely to distinguish similar objects and do not represent a specific ordering of the objects.

[0033] Example 1

[0034] like Figures 2-5 As shown, an airbag air guiding structure in this embodiment includes an air guiding bag main fabric piece 10, and the air guiding bag main fabric piece 10 is provided with bolt mounting holes 11.

[0035] The bolt mounting hole 11 is used to install the bolts of the gas generator, so as to fix the main fabric piece 10 of the gas guide bag to the gas generator together with the bolts.

[0036] The main fabric piece 10 of the air guide bag has two first reference holes at each end, and one end of the main fabric piece 10 of the air guide bag is also provided with a gas generator installation port.

[0037] Among them, the main fabric piece 10 of the air duct bag is a commonly used fabric piece for air duct bags, and there are no restrictions on the material and size of the main fabric piece 10 of the air duct bag.

[0038] The airbag air guiding structure also includes a first heat insulation sheet 20, which is disposed on the side of the main fabric sheet 10 of the air guiding bag, and a first positioning hole 21 is provided on the first heat insulation sheet 20.

[0039] In the case where the first heat insulation sheet 20 is folded onto the main fabric sheet 10 of the air guide bag, the bolt mounting hole 11 is set vertically and vertically corresponding to the first positioning hole 21.

[0040] The first heat insulation sheet 20 is used to be folded on the air guiding bag main cloth 10 to increase the thickness of the air bag air guiding structure and the contact part of the gas generator, so as to avoid the air guiding bag main cloth 10 of the air bag air guiding structure being scalded by the gas generator and affecting the performance of the air guiding bag.

[0041] In the case that the first heat insulation sheet 20 is folded on the air guiding bag main cloth 10, the bolt connected with the gas generator can pass through the first positioning hole 21 and the bolt mounting hole 11 in sequence, so that the first heat insulation sheet 20 is fixed on the air guiding bag main cloth 10 by the bolt, and the first heat insulation sheet 20 is prevented from being deviated or separated from the air guiding bag main cloth 10 and the gas generator in use.

[0042] The first positioning hole 21 can be coaxially arranged with the bolt mounting hole 11, or the first positioning hole 21 can be arranged non-coaxially with the bolt mounting hole 11.

[0043] Specifically, in the case that the first positioning hole 21 is arranged non-coaxially with the bolt mounting hole 11, at least a part of the first positioning hole 21 communicates with the bolt mounting hole 11, so that the bolt can be inserted into the first positioning hole 21 and the bolt mounting hole 11 in sequence.

[0044] Preferably, the first positioning hole 21 is coaxially arranged with the bolt mounting hole 11.

[0045] In some embodiments, the first heat insulation sheet 20 can be made of a heat insulation material, or the first heat insulation sheet 20 comprises a heat insulation layer.

[0046] In some embodiments, the first heat insulation sheet 20 is integrally connected with the air guiding bag main cloth 10, so that the manufacturing process is reduced, and the first heat insulation sheet 20 can be directly manufactured on the air guiding bag main cloth 10 without increasing additional cloth and without adjusting the production line of the air guiding bag main cloth 10 too much. In addition, by integrally connecting the first heat insulation sheet 20 with the air guiding bag main cloth 10 on the original production line of the air guiding bag main cloth 10, additional cloth management equipment does not need to be increased, which undoubtedly improves the utilization rate of the original material of the air guiding bag main cloth 10 and saves cloth.

[0047] Specifically, in the case that the air guiding bag main cloth 10 is made of cloth raw materials, the cloth on the side edge of the air guiding bag main cloth 10 can be processed into the first heat insulation sheet 20, so as to improve the utilization rate of the cloth raw materials, save cloth, reduce waste, and also do not need to adjust the production line too much and do not need to increase additional cloth management equipment, which undoubtedly increases the practicability and operation convenience of the air bag air guiding structure.

[0048] The working principle of the embodiment is as follows:

[0049] In the process of installing the gas generator, the worker first folds the first heat insulation sheet 20 onto the gas guiding bag main cloth 10, and makes the first positioning hole 21 correspond to the bolt mounting hole 11 up and down, then the worker sequentially passes the bolt of the gas generator through the first positioning hole 21 and the bolt mounting hole 11, so as to fix the first heat insulation sheet 20 between the gas guiding bag main cloth 10 and the gas generator.

[0050] The present application increases the heat insulation capacity of the air bag gas guiding structure by arranging the first heat insulation sheet 20 on the gas guiding bag main cloth 10, and also saves the process steps and production manufacturing cost by integrally connecting the first heat insulation sheet 20 with the gas guiding bag main cloth 10.

[0051] Embodiment 2

[0052] This embodiment is a variant of embodiment 1.

[0053] As shown in Figures 2-5 , the first heat insulation sheet 20 is multiple, and is arranged on the side of the gas guiding bag main cloth 10.

[0054] Among them, in the case of multiple first heat insulation sheets 20, the first heat insulation sheets 20 are arranged on the side of the gas guiding bag main cloth 10, so as to cover each other after being folded onto the gas guiding bag main cloth 10, thereby increasing the thickness of the contact part of the air bag gas guiding structure and the gas generator.

[0055] Preferably, the first heat insulation sheet 20 can be two, and is arranged on the side of the gas guiding bag main cloth 10.

[0056] More preferably, the two first heat insulation sheets 20 are arranged on the opposite sides of the gas guiding bag main cloth 10.

[0057] In some embodiments, in the case of two first heat insulation sheets 20, if the bolt mounting hole 11 on the gas guiding bag main cloth 10 is one, the first positioning holes 21 on the two first heat insulation sheets 20 are all located above the bolt mounting hole 11 after the two first heat insulation sheets 20 are folded onto the gas guiding bag main cloth 10, so as to facilitate the bolt mounted on the gas generator to sequentially pass through the first positioning hole 21 and the bolt mounting hole 11.

[0058] In some embodiments, in the case of two first heat insulation sheets 20, the first heat insulation sheets 20 can be arranged obliquely on the two side edges of the gas guiding bag main cloth 10, if the bolt mounting hole 11 on the gas guiding bag main cloth 10 is one, the first positioning holes 21 on the two first heat insulation sheets 20 are all located above the bolt mounting hole 11 after the two first heat insulation sheets 20 are folded onto the gas guiding bag main cloth 10, so as to facilitate the bolt mounted on the gas generator to sequentially pass through the first positioning hole 21 and the bolt mounting hole 11.

[0059] In some embodiments, as shown in Figure 4 In some embodiments, as shown in

[0060] In some embodiments, the connection between the first heat insulation sheet 20 and the air guiding bag main cloth 10 is provided with a weakening structure to facilitate folding of the first heat insulation sheet 20 and to facilitate the first positioning hole 21 to correspond to the bolt positioning hole after the first heat insulation sheet 20 is folded.

[0061] For example, the weakening structure is to thin the connection between the first heat insulation sheet 20 and the air guiding bag main cloth 10, so that the first heat insulation sheet 20 is folded along the weakening structure, and the first positioning hole 21 corresponds to the bolt positioning hole after the first heat insulation sheet 20 is folded.

[0062] The present embodiment avoids damage to the air guiding bag main cloth 10 by providing multiple first heat insulation sheets 20, and the weakening structure also facilitates folding and covering of the first heat insulation sheet 20.

[0063] Embodiment 3

[0064] The present embodiment is a variant of embodiment 2.

[0065] As shown in Figures 2-3 Each first heat insulation sheet 20 is provided with a second heat insulation sheet 30, and each second heat insulation sheet 30 is provided with a second positioning hole 31.

[0066] In the case where the first heat insulation sheet 20 is folded onto the air guiding bag main cloth 10 and the second heat insulation sheet 30 is folded onto the first heat insulation sheet 20, the bolt mounting hole 11, the first positioning hole 21, and the second positioning hole 31 are arranged in correspondence.

[0067] Preferably, in order to save cloth, the second heat insulation sheet 30 is arranged adjacent to the side edge of the first heat insulation sheet 20 and the air guiding bag main cloth 10, so that the cloth material of the air guiding bag main cloth 10 is directly cut to obtain, thereby no additional cloth connection and cloth management is needed.

[0068] The second heat insulation sheet 30 is used to increase the thickness of the heat insulation sheet when the first heat insulation sheet 20 is folded onto the air guide bag main cloth 10, thereby further increasing the thickness of the air bag air guide structure, fully utilizing the raw material of the air guide bag main cloth 10, reducing the generation of waste cloth, and not needing to increase the management of additional cloth, using the original tool positioning, convenient production, high utilization rate of cloth overall layout, and saving cloth.

[0069] In some embodiments, the bolt mounting hole 11, the first positioning hole 21 and the second positioning hole 31 are coaxially arranged when the first heat insulation sheet 20 is folded onto the air guide bag main cloth 10 and the second heat insulation sheet 30 is folded onto the first heat insulation sheet 20, and can be non-coaxially arranged.

[0070] Preferably, the bolt mounting hole 11, the first positioning hole 21 and the second positioning hole 31 are coaxially arranged.

[0071] In the case of non-coaxial arrangement of the bolt mounting hole 11, the first positioning hole 21 and the second positioning hole 31, the bolt mounting hole 11, the first positioning hole 21 and the second positioning hole 31 are arranged in communication with each other.

[0072] Further, the connection between the first heat insulation sheet 20 and the second heat insulation sheet 30 is provided with a weakening structure to facilitate folding of the second heat insulation sheet 30.

[0073] The weakening structure between the first heat insulation sheet 20 and the second heat insulation sheet 30 is used to facilitate folding of the second heat insulation sheet 30, so that the second positioning hole 31 is arranged in correspondence with the first positioning hole 21 and the bolt mounting hole 11 when the second heat insulation sheet 30 is folded.

[0074] Further, the heat insulation sheet is integrally connected with the air guide bag main cloth 10 to improve the utilization rate of the cloth of the air guide bag main cloth 10, save cloth and reduce waste.

[0075] The working principle of the embodiment is as follows:

[0076] In the process of installing the gas generator, the worker first folds the first heat insulation sheet 20 onto the air guide bag main cloth 10, and makes the first positioning hole 21 correspond to the bolt mounting hole 11.

[0077] The worker folds the second heat insulation sheet 30 to fold the second heat insulation sheet 30 onto the first heat insulation sheet 20, and makes the second positioning hole 31 correspond to the first positioning hole 21, and finally inserts the bolts of the gas generator into the second positioning hole 31, the first positioning hole 21 and the bolt mounting hole 11 in sequence.

[0078] The scheme realizes the increase of the original scalding area cloth piece by optimizing the shape of the air guide bag main piece, thereby solving the problem that the existing air guide bag is easy to be scalded or burned through, causing the air guide bag main cloth piece to be scalded or burned through, thereby affecting the performance of the air guide bag or causing the air guide bag to fail, and meanwhile, the scheme increases the foldable auxiliary cloth piece on both sides of the main piece without increasing the shape and quantity of the existing other cloth pieces, thereby not needing to excessively change the production line and tooling, and further improving the overall layout utilization rate of the cloth piece and saving cloth.

[0079] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist in contradiction, they should be considered as falling within the scope of the present disclosure.

[0080] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An airbag ventilation structure, comprising a main fabric sheet for the airbag, wherein the main fabric sheet for the airbag is provided with bolt mounting holes, characterized in that, The airbag ventilation structure also includes: The first heat insulation sheet is disposed on the side of the main fabric of the air guide bag, and the first heat insulation sheet is provided with a first positioning hole. There are two first heat insulation sheets, which are disposed on the side of the main fabric of the air guide bag. When the first heat insulation sheet is folded onto the main fabric of the air guide bag, the bolt mounting hole is vertically aligned with the first positioning hole. When the first heat insulation sheet is folded onto the main fabric sheet of the air guide bag, the bolt mounting hole is coaxially arranged with the first positioning hole; Each of the first heat insulation sheets is provided with a second heat insulation sheet, and each of the second heat insulation sheets is provided with a second positioning hole; In the case where the first heat insulation sheet is folded onto the main fabric of the air guide bag and the second heat insulation sheet is folded onto the first heat insulation sheet, the bolt mounting hole, the first positioning hole, and the second positioning hole are arranged vertically in a corresponding manner.

2. The airbag air-guiding structure according to claim 1, characterized in that, The connection between the first heat insulation sheet and the main fabric sheet of the air guide bag is provided with a weakening structure to facilitate folding of the first heat insulation sheet and to make the first positioning hole correspond vertically with the bolt mounting hole.

3. The airbag air-guiding structure according to claim 1, characterized in that, When the first heat insulation sheet is folded onto the main fabric of the air guide bag and the second heat insulation sheet is folded onto the first heat insulation sheet, the bolt mounting hole, the first positioning hole, and the second positioning hole are coaxially arranged.

4. The airbag air-guiding structure according to claim 1, characterized in that, The connection between the first heat insulation sheet and the second heat insulation sheet is provided with a weakening structure to facilitate folding the second heat insulation sheet and to make the second positioning hole correspond vertically with the first positioning hole.

5. The airbag air-guiding structure according to claim 1, characterized in that, The first heat insulation sheet and the second heat insulation sheet are integrally connected.

6. The airbag air-guiding structure according to claim 1, characterized in that, The first heat insulation sheet is integrally connected to the main fabric sheet of the air guide bag.

Images