Multi-cavity air bag structure of auxiliary air bag
The auxiliary airbag, with its multi-cavity structure and air duct design, solves the problem of insufficient protection of traditional single-cavity airbags in complex collision scenarios, achieving more precise occupant protection and stable airbag inflation.
Patent Information
- Application Number
- CN202423040791.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Traditional single-chamber airbags cannot provide precise protection based on occupant size and collision intensity in complex collision scenarios.
The auxiliary airbag features a multi-chamber structure, including a main chamber and multiple sub-chambers. It is connected to a one-way valve through vents. The airbag design controls gas flow to ensure full contact between the airbag and the occupant and provides support.
The increased contact space between the airbag and the occupant prevents occupant displacement, provides sufficient support, and ensures that the airbag remains fully inflated during a collision.
Smart Images
Figure CN223520781U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile safety, more particularly to a multi-cavity auxiliary air bag structure. BACKGROUND
[0002] With the continuous development of the automobile industry and the increasing demand for automobile safety performance, the performance optimization of the automobile safety air bag system as an important passive safety device is crucial.
[0003] Traditional single-cavity air bags have certain limitations when dealing with complex collision scenarios. For example, in a frontal collision, a single-cavity air bag may not provide precise protection based on factors such as the occupant's body size, sitting posture, and collision intensity. SUMMARY
[0004] To overcome the above-mentioned defects of the prior art, the utility model provides a multi-cavity auxiliary air bag structure to solve the problems in the above background art.
[0005] The utility model provides the following technical scheme: a multi-cavity auxiliary air bag structure, comprising an auxiliary air bag assembly, the auxiliary air bag assembly comprising a shell, a generator and an air bag, the air bag is arranged in the shell, the generator is arranged in the shell, the generator inflates the air bag, the air bag comprises a main cavity and a plurality of sub-cavities, a plurality of the sub-cavities are sewn on one side of the main cavity, a plurality of the sub-cavities are communicated with the main cavity through the air hole, and a one-way valve is arranged in the air hole, so that the gas can only enter the sub-cavity from the main cavity, a plurality of the sub-cavities are provided with two air holes on one side, a plurality of the sub-cavities are provided with a gas guide bag for closing the air hole, and one side of the main cavity is provided with a gas vent.
[0006] As a further scheme of the utility model, the auxiliary air bag assembly further comprises a fixing ring, the fixing ring is fixed in the shell through bolts, and the fixing ring is located between the air bag and the generator.
[0007] As a further scheme of the utility model, the air bag is fixedly connected to the top of the fixing ring, the bottom of the generator is provided with a nut, the generator is fixed to the bottom of the fixing ring through the nut, and the air bag and the generator are vertically aligned.
[0008] As a further scheme of the utility model, the gas guide bag is sewn on one side of the sub-cavity, and the gas guide bag covers the sub-cavity.
[0009] As a further scheme of the utility model, the sewing method of the gas guide bag is three-edge sewing and open type, and the unsewn side has a length greater than the sewing distance.
[0010] As a further scheme of the utility model, the number of the plurality of sub-cavities is three, and the plurality of sub-cavities are distributed side by side.
[0011] Technical effects and advantages of the utility model:
[0012] 1. The utility model discloses a multi-cavity structure, which can fully utilize the air output of the generator, increase the contact space of the air bag and the member, and effectively prevent the passenger from deviating left or right during the collision by the design of the one-way air hole structure of each cavity, thereby providing sufficient support for the passenger.
[0013] 2. The utility model discloses a one-way valve, and the gas can only enter the sub-cavity from the main cavity, and the gas in the main cavity is discharged from the air release hole during the collision, and the one-way air structure works at this time to prevent the gas from being discharged from the sub-cavity.
[0014] 3. The utility model discloses a gas guide bag, when the gas enters the sub-cavity from the main cavity, the gas guide bag is in the open state, and if the gas is discharged from the sub-cavity, the gas guide bag will be closed by the air pressure at this time, preventing the gas from being discharged, and ensuring that the sub-cavity is in a full state. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a three-dimensional structure schematic view of the utility model.
[0016] Figure 2 It is an exploded view schematic view of the utility model.
[0017] Figure 3 It is an air bag structure schematic view of the utility model.
[0018] Figure 4 It is an internal structure schematic view of the utility model. Figure 3
[0019] The reference signs are: 1, auxiliary air bag assembly;2, air bag;3, fixing ring;4, shell;5, generator;6, nut;7, main cavity;8, sub-cavity;9, gas guide bag;10, air release hole;11, air hole. DETAILED DESCRIPTION
[0020] The technical scheme of the utility model will be described clearly and completely in combination with the drawings in the utility model, and additionally, the forms of each structure described in the following embodiments are only examples, and the utility model is not limited to each structure described in the following embodiments, and all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0021] Refer to Figures 1-4 The utility model provides a kind of multiple cavity's auxiliary air bag air bag structure, including auxiliary air bag assembly 1, auxiliary air bag assembly 1 includes shell 4, generator 5 and air bag 2, air bag 2 is arranged in shell 4, generator 5 is arranged in shell 4, make generator 5 into air bag 2 Inflation, air bag 2 includes main cavity 7 and multiple subcavity 8, multiple subcavity 8 are all sewn in the side of main cavity 7, multiple subcavity 8 are all communicated with main cavity 7 by gas-permeable hole, and one-way valve is equipped in gas-permeable hole, make gas only from main cavity 7 into subcavity 8, the side of multiple subcavity 8 is equipped with two air holes 11, the side of multiple subcavity 8 is equipped with the air guide bag 9 for closing air hole 11, the side of main cavity 7 is equipped with gas escape hole 10, generator 5 into air bag 2, gas will first enter into main cavity 7, at this time, because main cavity 7 and subcavity 8 are communicated with the gas-permeable hole of single-way valve, thus under the action of single-way valve, gas in main cavity 7 will enter into subcavity 8, to make main cavity 7 and subcavity 8 be filled with gas and expand, and when the gas pressure in main cavity 7 and subcavity 8 is same, will stop air intake, by multiple cavity structure, can make full use of generator 5 gas output, increase the contact space of air bag 2 and member, and in the process of collision, gas in main cavity 7 will be discharged from gas escape hole 10, and at this time, under the action of single-way valve, can prevent gas in subcavity 8 from entering into main cavity 7, can effectively prevent the passenger from deviating left or right in the process of collision, provide sufficient support force for passenger.
[0022] In the utility model, auxiliary air bag assembly 1 further includes fixed ring 3, fixed ring 3 is fixed in shell 4 by bolt, and fixed ring 3 is located between air bag 2 and generator 5, air bag 2 is bonded on the top of fixed ring 3, the bottom of generator 5 is equipped with nut 6, generator 5 is fixed on the bottom of fixed ring 3 by nut 6, and air bag 2 and generator 5 are vertically aligned, air guide bag 9 is sewn on the side of subcavity 8, and air guide bag 9 covers subcavity 8, the sewing mode of air guide bag 9 is three-edge sewing once open type, and the unsewn side length is greater than sewing distance, when gas enters subcavity 8 from main cavity 7, air guide bag 9 is in open state, and if gas is discharged from subcavity 8, air guide bag 9 receives airflow pressure, will close air hole 11, prevent gas from discharging, ensure that subcavity 8 is in full state, the number of multiple subcavity 8 is three, and multiple subcavity 8 is distributed side by side.
[0023] The working principle of the utility model is: when using, the generator 5 is towards the air bag 2, the gas will enter into the main cavity 7 first, at this time because the one-way valve is arranged in the air hole that the main cavity 7 and the sub-cavity 8 are communicated, therefore under the action of the one-way valve will make the gas in the main cavity 7 enter into the sub-cavity 8, thereby make the main cavity 7 and the sub-cavity 8 fill with gas and expand, and when the air pressure in the main cavity 7 and the sub-cavity 8 is same, will stop the air intake, through the multi-cavity structure, can make full use of the generator 5 air output, increase the contact space of the air bag 2 and the member, and in the process of collision, the gas in the main cavity 7 will discharge from the air release hole 10, and at this time under the action of the one-way valve, can prevent the gas in the sub-cavity 8 from entering into the main cavity 7, can effectively prevent the passenger from deviating left or right in the process of collision, provide sufficient supporting force for the passenger, and when the gas enters the sub-cavity 8 from the main cavity 7, the gas guide bag 9 is in the open state, and if the gas is discharged from the sub-cavity 8, the gas guide bag 9 receives the air flow pressure, will close the air hole 11, prevent the gas from discharging, ensure that the sub-cavity 8 is in the full state.
[0024] Finally, it should be pointed out that: in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;
[0025] The utility model discloses the embodiment attached drawing only relates to the structure involved in the embodiment of the disclosure, other structures can refer to the usual design, under the condition of not conflicting, the same embodiment and different embodiments of the utility model can be combined with each other.
Claims
1. A multi-cavity sub-airbag bag structure comprising a sub-airbag assembly (1), characterized in that: The auxiliary airbag assembly (1) comprises a shell (4), a generator (5) and an airbag bag (2), the airbag bag (2) is arranged in the shell (4), the generator (5) is arranged in the shell (4), the generator (5) inflates the airbag bag (2), the airbag bag (2) comprises a main cavity (7) and a plurality of sub-cavities (8), the plurality of sub-cavities (8) are sewn on one side of the main cavity (7), the plurality of sub-cavities (8) are communicated with the main cavity (7) through air holes, and one-way valves are arranged in the air holes, so that the gas can only enter the sub-cavities (8) from the main cavity (7), two air holes (11) are arranged on one side of the plurality of sub-cavities (8), and a gas guide bag (9) for closing the air holes (11) is arranged on one side of the plurality of sub-cavities (8), and a gas discharge hole (10) is arranged on one side of the main cavity (7).
2. The multi-cavity sub-airbag structure according to claim 1, wherein: The auxiliary airbag assembly (1) further comprises a fixing ring (3), the fixing ring (3) is fixed in the shell (4) by bolts, and the fixing ring (3) is located between the airbag bag (2) and the generator (5).
3. The multi-cavity sub-airbag structure according to claim 2, wherein: The airbag bag (2) is fixedly connected to the top of the fixing ring (3), the bottom of the generator (5) is provided with a nut (6), the generator (5) is fixed to the bottom of the fixing ring (3) through the nut (6), and the airbag bag (2) and the generator (5) are vertically aligned.
4. The multi-cavity sub-airbag structure according to claim 1, wherein: The gas guide bag (9) is sewn on one side of the sub-cavity (8), and the gas guide bag (9) covers the sub-cavity (8).
5. The multi-cavity sub-air bag structure of claim 4, wherein: The sewing method of the gas guide bag (9) is three-edge sewing for one time in an open type, and the unsewn side has a length greater than the sewing distance.
6. The multi-cavity sub-airbag structure of claim 1, wherein: The number of the plurality of sub-cavities (8) is three, and the plurality of sub-cavities (8) are distributed side by side.