Inflatable gas generator support and airbag module

Abstract

The embodiment of the utility model provides an inflatable gas generator support and an airbag module, the inflatable gas generator support comprises a support body, the support body comprises a connecting part matched with a gas generator, the connecting part is at least partially attached to the outer wall of the gas generator, and a sealing protrusion is arranged on the gas generator. The connecting part extends in the direction away from the gas generator to form a receding part, and when the gas generator is installed on the connecting part, at least part of the sealing protrusion is contained in the receding part. The gas generator is installed on the support through the connecting part, the avoiding part used for avoiding the sealing protrusion of the gas generator is arranged on the connecting part, when the gas generator is installed on the connecting part, the sealing protrusion stretches into the avoiding part, interference between the sealing protrusion and the support can be avoided, and when the gas generator is exploded, the gas generator can be prevented from being exploded. The receding part can play a role in limiting the sealing protrusion, the gas generator is prevented from moving, and therefore the sealing protrusion is prevented from scratching the bag.

Description

Technical Field

[0001] The present invention relates to the technical field of side airbags, and in particular to an inflatable gas generator bracket and an airbag module. Background Art

[0002] Side airbags are usually installed on the outside of the front seats to reduce the damage caused by side impacts and isolate the occupants from direct collisions with the door panels. They can effectively protect the safety of the front passengers. At present, some side airbags use inflatable gas generators, and a sealing convex bulge needs to be welded on the outer surface of the inflatable gas generator to ensure sealing. Due to the limitation of the installation space, the convex bulge is generally facing the side close to the gas generator bracket. The convex bulge presses the bag tightly against the gas generator bracket. When the inflatable gas generator is detonated, the inflatable gas generator will move and easily scratch the bag. Summary of the invention

[0003] In view of this, an embodiment of the present specification provides an inflatable gas generator bracket and an airbag module. By setting a avoidance portion on the connecting portion for avoiding the sealing protrusion of the gas generator, when the gas generator is installed on the connecting portion, the sealing protrusion extends into the avoidance portion, which can avoid interference between the sealing protrusion and the bracket. When the gas generator is ignited, the avoidance portion can limit the sealing protrusion, avoid the gas generator from moving, and thus avoid the sealing protrusion from scratching the bag.

[0004] The embodiments of this specification provide the following technical solutions: an inflatable gas generator bracket, comprising a bracket body, the bracket body comprising a connecting portion that cooperates with the gas generator, the connecting portion at least partially fits the outer wall of the gas generator, the gas generator is provided with a sealing protrusion, the connecting portion extends in a direction away from the gas generator to form an avoidance portion, and when the gas generator is installed on the connecting portion, the sealing protrusion is at least partially accommodated in the avoidance portion.

[0005] Preferably, the avoidance portion includes an avoidance groove, and the depth of the avoidance groove is not less than the thickness of the sealing protrusion.

[0006] Preferably, the bracket body also includes an elastic portion, which is connected to the avoidance portion and extends in a direction away from the connection portion. When the bracket body is installed on the seat frame, the elastic portion interferes with and elastically abuts against the first side of the seat frame.

[0007] Preferably, the elastic portion includes a transition portion and a deformation portion, the transition portion and the deformation portion are integrally formed, the transition portion is connected to the avoidance portion, and the distance between the outer end of the deformation portion and the avoidance portion can be changed between a first distance and a second distance.

[0008] Preferably, an initial distance between the deformation portion and the avoidance portion is a first distance, and an installation distance between the deformation portion and the avoidance portion is a second distance, and the second distance is smaller than the first distance.

[0009] Preferably, the bracket body further comprises a plurality of hooks, wherein the plurality of hooks are connected to the connecting portion and extend in a direction away from the connecting portion, and when the bracket body is mounted on a seat frame, the hooks are hooked on the second side of the seat frame.

[0010] Preferably, the hooks are provided in two groups, and the two groups of hooks are respectively provided on two opposite sides of the elastic part.

[0011] Preferably, the connecting portion extends outward to form a first mounting portion, and a first mounting hole is formed in the first mounting portion.

[0012] Preferably, the connecting portion extends outward to form a second mounting portion, and a second mounting hole is formed in the second mounting portion.

[0013] An airbag module comprises an inflatable gas generator, a bag, a clamp and a gas generator bracket as described in any one of the above items, wherein the gas generator at least partially extends into the bag, and the gas generator is fixed to the gas generator bracket by the clamp.

[0014] Compared with the prior art, the at least one technical solution adopted in the embodiments of this specification can achieve the following beneficial effects:

[0015] The gas generator is installed on the bracket through a connecting part. By arranging an avoidance part on the connecting part for avoiding the sealing protrusion of the gas generator, when the gas generator is installed on the connecting part, the sealing protrusion extends into the avoidance part, which can avoid interference between the sealing protrusion and the bracket. When the gas generator is ignited, the avoidance part can limit the sealing protrusion to avoid the gas generator from moving, thereby preventing the sealing protrusion from scratching the bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 is a schematic structural diagram of an inflatable gas generator bracket provided in the present application;

[0018] Figure 2 is a schematic structural diagram of an inflatable gas generator provided by the present application;

[0019] Figure 3 It is a structural schematic diagram of the inflatable gas generator bracket provided by the present application installed on the seat frame;

[0020] Figure 4 is a schematic diagram of the deformation of the deformation portion when the inflatable gas generator bracket provided by the present application is installed on the seat frame;

[0021] Figure 5 It is a schematic diagram of the structure of the airbag module provided in this application.

[0022] In the figure, 1. bracket body; 2. connecting part; 3. avoidance part; 4. avoidance groove; 5. elastic part; 51. transition part; 52. deformation part; 6. first mounting part; 7. first mounting hole; 8. second mounting part; 9. second mounting hole; 10. hook; 11. gas generator; 12. sealing protrusion; 13. seat frame; 14. clamp. DETAILED DESCRIPTION

[0023] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0024] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0025] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0026] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0027] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0028] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0029] like Figure 1-Figure 2 As shown, an inflatable gas generator bracket includes a bracket body 1, the bracket body 1 includes a connecting portion 2 that cooperates with the gas generator 11, the connecting portion 2 at least partially fits the outer wall of the gas generator 11, and a sealing protrusion 12 is provided on the gas generator 11. The connecting portion 2 extends in a direction away from the gas generator 11 to form an avoidance portion 3. When the gas generator 11 is installed on the connecting portion 2, the sealing protrusion 12 is at least partially accommodated in the avoidance portion 3.

[0030] By providing an avoidance portion 3 on the connecting portion 2, when the gas generator 11 is installed on the bracket, the sealing protrusion 12 on the gas generator 11 is at least partially accommodated in the avoidance portion 3, which can avoid interference between the sealing protrusion 12 and the bracket, and facilitate the installation operation of the gas generator 11. When the gas generator 11 is ignited, the avoidance portion 3 can limit the sealing protrusion 12 to avoid the gas generator 11 from moving, thereby preventing the sealing protrusion 12 from scratching the bag.

[0031] It should be noted that the bracket is applied to the inflatable gas generator 11 of the car seat side airbag. Due to the limitations of the installation space and installation position of the seat side airbag, the sealing protrusion 12 generally needs to be facing the side close to the bracket. Therefore, an avoidance portion 3 can be set at the position corresponding to the sealing protrusion 12 to avoid the sealing protrusion 12.

[0032] It should also be noted that the sealing protrusion 12 is located inside the bladder, and the sealing protrusion 12 is generally connected to the inflatable gas generator 11 by welding. Even after the outer periphery of the sealing protrusion 12 is polished, there will still be some burrs, and these burrs can easily scratch the bladder when the gas generator 11 moves.

[0033] like Figure 1-Figure 2As shown, in some embodiments, the avoidance portion 3 includes an avoidance groove 4, the depth of the avoidance groove 4 is not less than the thickness of the sealing protrusion 12, and the connecting portion 2 extends in a direction away from the gas generator 11 to form the avoidance groove 4, and the depth of the avoidance groove 4 is not less than the thickness of the sealing protrusion 12, so as to ensure that when the gas generator 11 is in contact with the connecting portion 2, the sealing protrusion 12 can be completely accommodated in the avoidance groove 4.

[0034] It should be noted that, in the present embodiment, the depth of the avoidance groove 4 is slightly greater than the thickness of the sealing protrusion 12 , so as to ensure that the bag at the corresponding position of the sealing protrusion 12 can also be located in the avoidance groove 4 .

[0035] It should also be noted that, in other embodiments, the avoidance portion 3 may also be configured as a through groove, which may be configured according to actual conditions.

[0036] like Figure 1-Figure 4 As shown, in some embodiments, the bracket body 1 also includes an elastic portion 5, wherein the elastic portion 5 is connected to the avoidance portion 3 and extends in a direction away from the connection portion 2. When the bracket body 1 is installed on the seat frame 13, the elastic portion 5 interferes with and elastically abuts against a first side of the seat frame 13. By setting the elastic portion 5, the elastic portion 5 extends in a direction away from the connection portion 2. When the bracket body 1 is installed on the seat frame 13, the elastic portion 5 is deformed by the interference of the seat frame 13, so that the elastic portion 5 abuts against the seat frame 13. There is a large resistance between the elastic portion 5 and the seat frame 13, thereby preventing the bracket body 1 from sliding relative to the seat frame 13, thereby ensuring the fixing effect of the bracket body 1.

[0037] like Figure 1-Figure 4 As shown, in some embodiments, the elastic portion 5 includes a transition portion 51 and a deformation portion 52, the transition portion 51 and the deformation portion 52 are integrally formed, the transition portion 51 is connected to the avoidance portion 3, and the distance between the outer end of the deformation portion 52 and the avoidance portion 3 can be changed between a first distance and a second distance. The elastic portion 5 is composed of the integrally formed transition portion 51 and the deformation portion 52, the first end of the transition portion 51 is connected to the avoidance portion 3, and the deformation portion 52 is connected to the second end of the transition portion 51. When the deformation portion 52 is subjected to pressure, the deformation portion 52 is deformed, and the distance between it and the avoidance portion 3 can be changed between the first distance and the second distance.

[0038] like Figure 1-Figure 4As shown, in some embodiments, the initial distance between the deformation portion 52 and the avoidance portion 3 is a first distance, and the installation distance between the deformation portion 52 and the avoidance portion 3 is a second distance, the second distance is smaller than the first distance, and when the deformation portion 52 is not deformed, the distance between the deformation portion 52 and the avoidance portion 3 is the first distance. When the bracket body 1 is installed on the seat frame 13, the seat frame 13 squeezes the deformation portion 52, so that the deformation portion 52 is deformed in a direction close to the avoidance portion 3, and the distance between the deformation portion 52 and the avoidance portion 3 changes from the first distance to the second distance, and the deformation portion 52 is tightly abutted against the seat frame 13, which can prevent the bracket body 1 from sliding relative to the seat frame 13.

[0039] like Figure 1 As shown, in some embodiments, the bracket body 1 also includes a plurality of hooks 10, and the plurality of hooks 10 are connected to the connecting portion 2 and extend in a direction away from the connecting portion 2. When the bracket body 1 is installed on the seat frame 13, the hooks 10 are hooked on the second side of the seat frame 13. By setting a plurality of hooks 10, the first end of the hook 10 is connected to the connecting portion 2. When the bracket body 1 is installed on the seat frame 13, the second end of the hook 10 passes through the seat frame 13. Under the action of the elastic portion 5, the hook 10 is tightly hooked on the back side of the seat frame 13 to avoid abnormal friction noise between the hook 10 and the seat frame 13 during the operation of the vehicle.

[0040] like Figure 1 As shown, in some embodiments, the hook 10 is provided with two groups, and the two groups of hooks 10 are respectively provided on opposite sides of the elastic part 5, and the hooks 10 are respectively provided on both sides of the elastic part 5, so that both sides of the elastic part 5 have a hooking force between the hooks 10 and the seat frame 13, further ensuring the fixing effect of the bracket body 1 on the seat frame 13.

[0041] like Figure 1 As shown, in some embodiments, the connecting portion 2 extends outward to form a first mounting portion 6, and a first mounting hole 7 is opened on the first mounting portion 6. By opening the first mounting hole 7 on the first mounting portion 6, the bracket body 1 can be installed on the seat frame 13 through the first mounting hole 7.

[0042] It should be noted that the first mounting hole 7 may be a square hole, a threaded hole or other holes, and may be set according to actual conditions to ensure the mounting and fixing effect of the bracket body 1 .

[0043] like Figure 1As shown, in some embodiments, the connecting portion 2 extends outward to form a second mounting portion 8, and a second mounting hole 9 is opened on the second mounting portion 8. By opening a first mounting hole 7 on the second mounting portion 8, the bracket body 1 can be installed on the seat frame 13 through the first mounting hole 7.

[0044] It should be noted that the first mounting portion 6 and the second mounting portion 8 are respectively arranged at two opposite edge ends of the bracket body 1 to further ensure the installation and fixing effect of the bracket body 1 .

[0045] It should also be noted that the second mounting hole 9 may be a square hole, a threaded hole or other holes, and may be set according to actual conditions to ensure the mounting and fixing effect of the bracket body 1 .

[0046] See also Figure 1-Figure 5 Based on the same inventive concept, an embodiment of the present specification provides an airbag module, comprising an inflatable gas generator 11, a bag, a clamp 14 and a gas generator 11 bracket as described in any one of the above items, wherein the gas generator 11 at least partially extends into the bag, and the gas generator 11 is fixed to the gas generator 11 bracket by the clamp 14.

[0047] During implementation, when the inflatable gas generator 11 is installed, the inflatable gas generator 11 is extended into the interior of the bag, the outer wall of the inflatable gas generator 11 is in contact with the connecting portion 2, the sealing protrusion 12 is accommodated in the avoidance portion 3, and the inflatable gas generator 11 is fixed to the gas generator 11 bracket by the clamp 14 to obtain the airbag module. When the airbag module is installed on the seat frame 13 as a side airbag, the elastic part 5 contacts the first side of the seat fixed, and pressure is applied to deform the elastic part 5. The hook 10 passes through the seat frame 13 to reach its second side. Under the action of the elastic part 5, the hook 10 is tightly hooked on the back side of the seat frame 13 to avoid sliding and friction noise between the hook 10 and the seat frame 13. The elastic part 5 is in contact with the seat frame 13 to avoid sliding of the bracket body 1 relative to the seat frame 13. When the gas generator 11 is ignited, the avoidance part 3 can limit the sealing protrusion 12 to avoid the gas generator 11 from moving, thereby preventing the sealing protrusion 12 from scratching the bag.

[0048] The same or similar parts between the various embodiments in this specification can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the method embodiment described later, since it corresponds to the system, the description is relatively simple, and the relevant parts can be referred to the partial description of the system embodiment.

[0049] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An inflatable gas generator bracket, comprising a bracket body, the bracket body comprising a connecting portion cooperating with the gas generator, the connecting portion at least partially abutting against an outer wall of the gas generator, the gas generator being provided with a sealing protrusion, characterized in that: The connecting portion extends in a direction away from the gas generator to form an escape portion. When the gas generator is installed on the connecting portion, the sealing protrusion is at least partially accommodated in the escape portion.

2. The inflatable gas generator bracket according to claim 1, characterized in that: The avoidance portion includes an avoidance groove, and the depth of the avoidance groove is not less than the thickness of the sealing protrusion.

3. The inflatable gas generator bracket according to claim 1, characterized in that: The bracket body also includes an elastic portion, which is connected to the avoidance portion and extends in a direction away from the connection portion. When the bracket body is installed on the seat frame, the elastic portion interferes with and elastically abuts against the first side of the seat frame.

4. The inflatable gas generator bracket according to claim 3, characterized in that: The elastic portion includes a transition portion and a deformation portion, the transition portion and the deformation portion are integrally formed, the transition portion is connected to the avoidance portion, and the distance between the outer end of the deformation portion and the avoidance portion can be changed between a first distance and a second distance.

5. The inflatable gas generator bracket according to claim 4, characterized in that: An initial distance between the deformation portion and the avoidance portion is a first distance, and an installation distance between the deformation portion and the avoidance portion is a second distance, and the second distance is smaller than the first distance.

6. The inflatable gas generator bracket according to any one of claims 3 to 5, characterized in that: The bracket body also includes a plurality of hooks, which are connected to the connecting portion and extend in a direction away from the connecting portion. When the bracket body is installed on the seat frame, the hooks are hooked on the second side of the seat frame.

7. The inflatable gas generator bracket according to claim 6, characterized in that: The hooks are provided in two groups, and the two groups of hooks are respectively provided at two opposite sides of the elastic part.

8. The inflatable gas generator bracket according to claim 1, characterized in that: The connecting portion extends outward to form a first mounting portion, and a first mounting hole is formed in the first mounting portion.

9. The inflatable gas generator support according to claim 8, characterized in that: The connecting portion extends outward to form a second mounting portion, and a second mounting hole is formed in the second mounting portion.

10. An airbag module, characterized in that: It comprises an inflatable gas generator, a bladder, a clamp and a gas generator bracket as described in any one of claims 1 to 9, wherein the gas generator at least partially extends into the interior of the bladder, and the gas generator is fixed to the gas generator bracket by the clamp.

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