Gas generator support and gas generator

Abstract

The gas generator support comprises a support part and a clamping part, the support part is configured to wrap the periphery of the gas generator in the circumferential direction of the gas generator, at least part of the tail end of the support part extends outwards to form a protection part, and the protection part can shield a wire harness connector of the gas generator; the clamping part is provided with at least two opposite clamping pieces, and the two clamping pieces are arranged on the two opposite side walls of the support part and are configured to clamp the gas generator when the gas generator is wrapped by the support part. According to the invention, the wire harness connector is protected, the use of a hoop is saved, and the problem that the wire harness connector of the existing gas generator is pressed to be disconnected from the gas generator is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of airbag, and particularly relates to a gas generator bracket and a gas generator. Background Art

[0002] With the popularization of zero-gravity seats, the demand for seat cushion airbags is increasing continuously. The seat cushion airbag can effectively prevent the occupant from diving during a collision and relieve the pressure on the lumbar spine. Generally, the gas generators of both the seat cushion airbag and the seat airbag are installed inside the part of the seat that supports the occupant. During a collision event, the gas generator is activated and inflates the seat airbag, causing the airbag to expand, thereby providing protection for the occupant's buttocks.

[0003] In the prior art, since the weight of the occupant will directly press the seat airbag and its gas generator, the wire harness connector of the gas generator may be pressed and damaged or disconnected from the gas generator, thus preventing the normal activation of the airbag and reducing the reliability and safety of the system.

[0004] Based on this, a new technical solution is needed. Summary of the Invention

[0005] In view of this, embodiments of the present invention provide a gas generator bracket and a gas generator to at least solve the problem that the wire harness connector of the existing gas generator is pressed and disconnected from the gas generator.

[0006] Embodiments of the present invention provide the following technical solutions:

[0007] Embodiments of the present invention provide a gas generator bracket, including:

[0008] A bracket part, the bracket part is configured to wrap the outer periphery of the gas generator along the circumferential direction of the gas generator, at least part of the tail end of the bracket part extends outward to form a protection part, and the protection part can shield the wire harness connector of the gas generator;

[0009] A clamping part, the clamping part has at least two opposite clamping members, and the two clamping members are arranged on opposite side walls of the bracket part, and are configured to clamp the gas generator when the bracket part wraps the gas generator.

[0010] Further, the protection part is an arc-shaped structure and is configured to shield at least one-third of the wire harness connector along the circumferential direction of the wire harness connector.

[0011] Further, at least part of the head end of the bracket part extends outward to form an extension part, and a limiting port is formed at the end of the extension part, and the limiting port is used to cooperate with the bolt of the gas generator to limit the bracket part.

[0012] Further, an avoidance portion matching the welded portion of the bolt is provided on the limiting opening, and the avoidance portion is used to avoid the welded portion of the bolt.

[0013] Further, the support portion further includes:

[0014] A telescopic joint, which is arranged on the support portion and the extension portion along the radial direction of the support portion and communicates with the limiting opening. The support portion can wrap around the outer periphery of gas generators of different sizes through the telescopic joint.

[0015] Further, the two clamping members are in the structure of elastic sheets and are arranged in the limiting opening formed at the front end of the support portion along the circumferential direction of the support portion. When the support portion wraps the gas generator, the two clamping members are elastically deformed and snap into the grooves on the side wall of the gas generator.

[0016] Further, the gas generator support further includes:

[0017] A deflector, which is connected to the front end of the support portion, and at least part of the deflector is located above the air outlet of the gas generator to change the air flow direction of the gas generator.

[0018] Further, the deflector includes:

[0019] An arc-shaped plate, which is connected to the front end of the support portion, and at least part of it is located above the air outlet of the gas generator, so that the air flow of the gas generator flows in a direction away from the arc-shaped plate.

[0020] Further, the deflector includes:

[0021] A connecting plate, which is connected to the lower part of the front end of the support portion, and a receiving opening is formed along the length direction of the connecting plate. The connecting plate is connected to the vehicle body through the receiving opening by passing through a bolt;

[0022] A deflector ring, which is connected to one end of the connecting plate away from the support portion and is located around the air outlet of the gas generator to prevent the air flow of the gas generator from flowing rapidly upward.

[0023] An embodiment of the present invention further provides a gas generator, including:

[0024] The gas generator support as described in any one of the above;

[0025] A gas generator body, and grooves are provided on the outer peripheral wall of the gas generator body.

[0026] After the gas generator body is installed in the gas generator bracket, the clamping member of the gas generator bracket enters and clamps the groove.

[0027] Compared with the prior art, the beneficial effects that can be achieved by at least one of the above technical solutions adopted in the embodiments of the present invention at least include:

[0028] A gas generator bracket of the present invention solves the problem of lack of protection for the wire harness connector of the gas generator by sleeving the bracket part onto the gas generator, extending the protection part outward to shield the wire harness connector of the gas generator, and finally using the clamping part to clamp and fix the bracket part to the gas generator, improving the safety of the connection between the wire harness connector and the gas generator. Description of the Drawings

[0029] 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 in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0030] Figure 1 Structural schematic diagram of a gas generator bracket of an embodiment of the present invention installed on a gas generator;

[0031] Figure 2 Side view of a gas generator bracket of an embodiment of the present invention;

[0032] Figure 3 Bottom view of a gas generator bracket of an embodiment of the present invention;

[0033] Figure 4 Bottom view of a gas generator bracket of an embodiment of the present invention installed on a gas generator;

[0034] Figure 5 Structural schematic diagram (1) of a gas generator bracket with a flow guide cover in an embodiment of the present invention;

[0035] Figure 6 Structural schematic diagram (2) of a gas generator bracket with a flow guide cover in an embodiment of the present invention.

[0036] The reference numerals of the present invention are as follows:

[0037] 10. Bracket part; 11. Extension part; 12. Limit opening; 13. Expansion joint; 14. Avoidance part;

[0038] 20. Protection part;

[0039] 30. Gas generator; 31. Wire harness connector;

[0040] 40. Clamping part;

[0041] 50. Fairing; 51. Arc plate; 52. Connecting plate; 53. Flow guiding ring. Detailed implementation manners

[0042] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0043] The following uses specific specific examples to illustrate the implementation manners of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the content 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 manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, without 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 those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0044] It should be noted that the following describes various aspects of the embodiments within the scope of the appended claims. It should be obvious that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is illustrative only. Based on the present application, those skilled in the art should understand that one 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 aspects described herein can be used to implement the device and / or practice the method. In addition, this device and / or this method can be implemented using other structures and / or functions in addition to one or more of the aspects described herein.

[0045] It also needs to be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present application in a schematic manner. The drawings only show the components related to the present application, rather than being drawn according to the number, shape and size of the components in actual implementation. The type, quantity and proportion of each component in its actual implementation can be an arbitrary change, and the component layout type may also be more complex.

[0046] In addition, in the following description, specific details are provided for the purpose of facilitating a thorough understanding of the examples. However, those skilled in the art will understand that the examples can be practiced without these specific details.

[0047] With the popularization and application of zero-gravity seats, the demand for seat cushion airbags is increasing. They can effectively prevent the occupant from diving and relieve lumbar spine force during a collision. Since the seat cushion airbag is installed on the seat pan, most of the mass of the entire occupant presses on it. Therefore, there is a certain risk that the wire harness connector will be pressed, which may affect the normal ignition of the seat airbag;

[0048] At present, the protection sheets of some competing products on the market, similar to the wire harness connector protection sheet of SAB, are not an optimal protection solution and the cost is slightly high.

[0049] Based on this, the embodiments of this specification propose a processing solution: as Figure 1 shown, in a gas generator bracket of the present invention, after the bracket part 10 is installed on the gas generator 30, the protection part 20 can prevent the occupant's buttocks from directly pressing the wire harness connector 31 of the gas generator 30, improving the connection safety between the gas generator 30 and the wire harness connector 31.

[0050] The following describes the technical solutions provided by the embodiments of this application with reference to the accompanying drawings.

[0051] Embodiment 1

[0052] As Figures 1 to 4 shown, a gas generator bracket of the present invention includes a bracket part 10 and a clamping part 40. Among them, the bracket part 10 is configured to wrap around the outer periphery of the gas generator 30 along the circumferential direction of the gas generator 30. At least a part of the tail end of the bracket part 10 extends outward to form a protection part 20, and the protection part 20 can shield the wire harness connector 31 of the gas generator 30; the clamping part 40 has at least two opposite clamping members, and the two clamping members are arranged on opposite side walls of the bracket part 10, and are configured to clamp the gas generator 30 when the bracket part 10 wraps around the gas generator 30.

[0053] Among them, the bracket part 10 is used to be installed on the gas generator 30 so that the protection part 20 can shield the wire harness connector 31 of the gas generator 30.

[0054] Among them, after the gas generator 30 is installed in the seat pan, the protection part 20 is located above the wire harness connector 31 of the gas generator 30 to prevent the wire harness connector 31 from being pressed by the occupant, resulting in the disconnection of the wire harness connector 31 from the gas generator 30.

[0055] Among them, both the bracket part 10 and the protection part 20 are supported by metal materials, such as steel sheets, so that the protection part 20 has a certain stiffness to avoid the protection part 20 being bent under pressure.

[0056] Among them, the protection part 20 extends beyond the wire harness connector 31 in the length direction of the bracket part 10, that is, the length of the protection part 20 is greater than the length of the wire harness connector 31, so as to completely cover the wire harness connector 31.

[0057] Among them, the protection part 20 completely shields the wire harness connector 31 in the width direction of the bracket part 10, so as to enhance the protection ability for the wire harness connector 31.

[0058] In some embodiments, the protection part 20 is provided with a wire harness shielding part in the direction of the wire harness connected to the wire harness connector 31, so as to shield the wire harness and prevent the wire harness from being pressed and causing the wire harness connector 31 to disconnect from the gas generator 30.

[0059] In some embodiments, the protection part 20 is of an arc-shaped structure and is configured to shield at least one-third of the wire harness connector 31 along the circumferential direction of the wire harness connector 31, so as to enhance the protection ability for the wire harness connector 31 and prevent the soft objects on the seat from pressing on the wire harness connector 31.

[0060] In some embodiments, the shape of the protection part 20 is set to be similar to that of the wire harness connector 31 and completely shields the wire harness connector 31 to prevent the wire harness connector 31 from being squeezed.

[0061] In some embodiments, the bracket part 10 is of a cylindrical structure and is sleeved on the tail of the gas generator 30, and the inner diameter of the bracket part 10 is slightly larger than the outer diameter of the gas generator 30.

[0062] In some embodiments, the bracket part 10 is fixed to the gas generator 30, such as being integrally welded to the gas generator 30.

[0063] In some embodiments, when the bracket part 10 is of a cylindrical structure, at least a part of the head end of the bracket part 10 extends outward to form an extension part 11, and a limiting port 12 is formed at the end of the extension part 11. The limiting port 12 is used to cooperate with the bolt of the gas generator 30 to limit the bracket part 10.

[0064] Specifically, when the gas generator 30 is installed in the seat basin, the extension part 11 is located at the lower part of the head end of the gas generator 30 and abuts against the bolt through the limiting port 12, so as to prevent the bracket part 10 from displacing along the tube body of the gas generator 30, resulting in the protection part 20 being unable to shield the wire harness connector 31.

[0065] For example, by abutting the limiting port 12 against the bolt, the bracket part 10 and the protection part 20 are prevented from displacing towards the gas outlet end of the gas generator 30, resulting in the protection part 20 being unable to completely shield the wire harness connector 31.

[0066] The limiting opening 12 is also used to limit the bracket portion 10 in the circumferential direction to prevent the bracket portion 10 from rotating along the circumferential direction of the gas generator 30 .

[0067] The boundary of the limiting opening 12 does not exceed the welding center of the bolt of the gas generator 30 .

[0068] In some of the embodiments, the limiting opening 12 is a semicircular opening that can partially surround the bolt, so that after the gas generator 30 is installed on a seat frame or other bracket by bolts, the bracket portion 10 is fixed between the bolt and the seat frame to lock and limit the bracket portion 10.

[0069] In some of the embodiments, a relief portion 14 matching the welded portion of the bolt is provided on one side of the limit opening 12, and the relief portion 14 is used to avoid the welding protrusion or welding recess on the bolt, so that the bracket portion 10 and the bolt are more adapted and connected more tightly.

[0070] For example, Figure 1 As shown, when the welded portion on the bolt is a protruding portion, the avoidance portion 14 is an L-shaped protrusion, which is connected to the extension portion 11 and is located on one side of the limiting opening 12, so as to allow the welded portion on the bolt to enter between the L-shaped protrusion and the outer wall of the gas generator.

[0071] In some of the embodiments, when the bracket portion 10 wraps the gas generator 30, the bracket portion 10 also includes an expansion joint 13, which is arranged on the bracket portion 10 and the extension portion 11 along the radial direction of the bracket portion 10 and is connected to the limit opening 12. The bracket portion 10 can be wrapped around the periphery of the gas generator 30 of different sizes through the expansion joint 13.

[0072] The expansion joint 13 is used to enable the bracket portion 10 to be expanded, so that the bracket portion 10 can be applied to gas generators 30 with different diameters.

[0073] The bracket part 10 itself has a certain elasticity.

[0074] The width of the expansion joint 13 is smaller than the outer diameter of the bolt, so as to prevent the bracket part 10 from being unable to pass through the limiting opening 12 and abut against the bolt.

[0075] In some of the embodiments, the two clamping members are spring structures and are arranged along the circumference of the bracket portion 10 in a limiting opening 12 opened at the head end of the bracket portion 10. When the bracket portion 10 wraps the gas generator 30, the two clamping members are inserted into the groove of the side wall of the gas generator 30 under the action of elastic deformation, so that the clamping members and the groove are interference fit.

[0076] The clamping member has elastic deformation when subjected to force and can clamp the gas generator 30 .

[0077] In some of these embodiments, the clamping member can be cut and provided at a certain part of the bracket portion 10 and clamped with the groove. For example, the clamping member can be pressed into the groove by using a pressing device so that the clamping portion 40 and the groove are in interference fit.

[0078] By providing a clamping member on the clamping portion 40 that can elastically deform, and thus cooperating with the groove on the gas generator 30, the clamping portion 40 can be clamped and fixed to the gas generator 30.

[0079] Preferably, the clamping member is an arc-shaped structure to be adapted to the gas generator 30.

[0080] Among them, the clamping member is also used to limit the axial movement of the protection portion 20.

[0081] In some of these embodiments, as Figures 5 to 6 shown, the gas generator bracket further includes a deflector 50. The deflector 50 is connected to the first end of the bracket portion 10, and at least part of the deflector 50 is located above the air outlet of the gas generator 30 to change the air flow direction of the gas generator 30 and avoid the occupants sitting on the seat.

[0082] Among them, the deflector 50 can be an arc-shaped plate 51 structure, which is fixed to the top end of the bracket portion 10 and extends towards the air outlet of the gas generator 30 to change the air flow direction of the gas generator 30.

[0083] Among them, the deflector 50 is also used to prevent the air outlet of the gas generator 30 from directly injecting into the airbag, increasing the safety of the airbag. For example, in the case where the airbag and the air outlet of the gas generator 30 are under long-term pressure, resulting in a reduction in the firmness of the airbag, the deflector 50 diverts the gas, thus preventing the gas from directly hitting the airbag and avoiding damage to the airbag.

[0084] Among them, the part of the deflector 50 located at the air outlet can be an annular structure.

[0085] Among them, the deflector 50 is also used to protect the gas generator 30 and prevent the airbag from blocking the air outlet of the gas generator 30 under long-term pressure.

[0086] In some of these embodiments, the deflector 50 includes an arc-shaped plate 51. The arc-shaped plate 51 is connected to the first end of the bracket portion 10, and at least part of it is located above the air outlet of the gas generator 30 so that the air flow of the gas generator 30 flows in a direction away from the arc-shaped plate 51.

[0087] Specifically, one end of the arc-shaped plate 51 is fixed to the first end of the bracket portion 10, and the other end hangs at the air outlet of the gas generator 30 to change the air flow of the gas generator 30.

[0088] Among them, the arc-shaped plate 51 can be supported by metal or non-metal materials.

[0089] In some of these embodiments, the deflector 50 includes a connecting plate 52 and a deflector ring 53. Among them, the connecting plate 52 is connected to the lower part of the head end of the bracket portion 10, and a receiving opening is formed along the length direction of the connecting plate 52. The connecting plate 52 is connected to the vehicle body through the receiving opening by bolts; the deflector ring 53 is connected to one end of the connecting plate 52 away from the bracket portion 10 and is located around the air outlet of the gas generator 30 to prevent the airflow of the gas generator 30 from flowing rapidly upward.

[0090] Among them, when the gas generator 30 is installed in the seat basin, the connecting plate 52 is located at the bottom end of the gas generator 30 to be clamped and fixed between the gas generator 30 and the seat frame, so that the gas of the gas generator 30 can be shunted even when there are no bolts on the gas generator 30.

[0091] Among them, the deflector ring 53 is used to receive the gas impact of the gas generator 30 and shunt the airflow to prevent the airflow from directly rushing upward, resulting in damage to the airbag or rapid upward expansion.

[0092] The gas generator bracket of the present invention is installed on the gas generator 30 through the bracket portion 10 and the clamping member, thus saving a clamp for fastening the gas generator 30, and the protection portion 20 can also prevent the problem that the new connector of the gas generator 30 is displaced and detached due to the extrusion of the foam.

[0093] The present invention directly adds a protective steel sheet to the tail of the gas generator 30, and positions the protection portion 20 through the bolt flange and the tube body groove of the generator itself. The installation is simple and does not affect the installation of the airbag module into the seat basin.

[0094] Embodiment 2

[0095] As Figures 5 to 6 shown, the embodiment of the present invention provides a gas generator 30, including the gas generator bracket and the gas generator 30 body as described in Embodiment 1. Among them, a groove is provided on the outer peripheral wall of the gas generator 30 body; among them, after the gas generator 30 body is installed in the gas generator bracket, the clamping member of the gas generator bracket enters and clamps the groove.

[0096] In this specification, the same or similar parts among the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the product embodiments described later, since they correspond to the methods, the descriptions are relatively simple, and the relevant parts can be referred to the partial descriptions of the system embodiments.

[0097] As described above, it is only the specific implementation manner 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 those skilled in the art within the technical scope disclosed in the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A gas generator bracket, characterized in that: include: A bracket portion, the bracket portion being configured to wrap the outer circumference of the gas generator along the circumference of the gas generator, at least a portion of the tail end of the bracket portion extending outward to form a protective portion, the protective portion being capable of shielding a wiring harness connector of the gas generator; The clamping portion has at least two opposite clamping members, and the two clamping members are arranged on two opposite side walls of the bracket portion, and are configured to clamp the gas generator when the bracket portion wraps the gas generator.

2. The gas generator bracket according to claim 1, characterized in that: The protection portion is an arc-shaped structure, and is configured to shield at least one third of the wiring harness connector along the circumference of the wiring harness connector.

3. The gas generator bracket according to claim 1, characterized in that: The head end of the bracket part at least partially extends outward to form an extension part, and the end of the extension part forms a limiting opening, and the limiting opening is used to cooperate with the bolt of the gas generator to limit the bracket part.

4. The gas generator bracket according to claim 3, characterized in that: The limiting opening is provided with an avoidance portion matching the welded portion of the bolt, and the avoidance portion is used to avoid the welded portion of the bolt.

5. The gas generator bracket according to claim 3, characterized in that: The bracket part also includes: An expansion joint is provided on the bracket portion and the extension portion along the radial direction of the bracket portion and is connected to the limiting opening. The bracket portion can be wrapped around the periphery of gas generators of different sizes through the expansion joint.

6. The gas generator bracket according to claim 1, characterized in that: The two clamping members are spring structures and are arranged along the circumference of the bracket part in a limiting opening opened at the head end of the bracket part. When the bracket part wraps the gas generator, the two clamping members are clamped into the groove of the side wall of the gas generator under the action of elastic deformation.

7. The gas generator bracket according to claim 1, characterized in that: Also includes: A flow guide cover is connected to the head end of the bracket part, and at least a part of the flow guide cover is located above the gas outlet of the gas generator to change the gas flow direction of the gas generator.

8. The gas generator bracket according to claim 7, characterized in that: The deflector comprises: An arc-shaped plate is connected to the head end of the bracket part, and at least a part of the arc-shaped plate is located above the gas outlet of the gas generator, so that the gas flow of the gas generator flows in a direction away from the arc-shaped plate.

9. The gas generator bracket according to claim 7, characterized in that: The deflector comprises: A connecting plate, the connecting plate is connected to the lower part of the head end of the bracket part, and a receiving opening is opened along the length direction of the connecting plate, and the connecting plate is connected to the vehicle body through the receiving opening through bolts; A guide ring is connected to one end of the connecting plate away from the bracket part and is located around the gas outlet of the gas generator to prevent the gas flow of the gas generator from flowing upward rapidly.

10. A gas generator, characterized in that: include: The gas generator bracket according to any one of claims 1 to 9; A gas generator body, wherein a groove is provided on the outer peripheral wall of the gas generator body; Wherein, after the gas generator body is installed into the gas generator bracket, the clamping piece of the gas generator bracket enters and clamps the groove.

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