Safety air bag and vehicle
Through the airbag design folded in the front seat back, the airbag quickly unfolds during collisions to form a gas protective pad, solving the protection problems of the head, chest and knees of the rear occupants in car collisions, achieving an effective safety cushioning effect.
Patent Information
- Application Number
- CN202422546244.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-21
AI Technical Summary
The safety protection of rear passengers is relatively weak in car collision accidents, and the prior art is difficult to effectively protect the head, chest and knees of rear passengers.
An airbag is designed. The airbag is folded into the back of the front seat in an uninflated state. It is quickly inflated and unfolded during collision. The upper end of the airbag extends upwards above the front seat headrest, and the lower end extends downwards to the knee position of the rear occupants, forming a gas protective pad to cushion the collision between the rear occupants and the front seats.
Effectively reduce the damage to the head, chest and knee of the rear occupants in the collision accident, and protect the safety of the rear occupants through the cushioning effect of the air bag.
Smart Images
Figure CN223132018U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of automotive equipment, and particularly to an airbag and a vehicle. Background Art
[0002] In modern automotive industry, airbags, as a key passive safety system, play a crucial role in reducing the injuries suffered by vehicle occupants during collisions. However, although front-row passengers are usually equipped with airbags for head and chest protection, the safety protection for rear-row passengers is relatively weak, which has become an urgent technical challenge to be solved. Utility Model Content
[0003] The purpose of this utility model is to provide an airbag and a vehicle for protecting the rear-row occupants of the vehicle.
[0004] This utility model provides an airbag, which includes an airbag;
[0005] The airbag has an initial state of being uninflated and a deployed state of being inflated;
[0006] In the initial state, the airbag is configured to be folded within the backrest of the front-row seat of the vehicle;
[0007] The airbag can be inflated to pop out and deploy backward from the backrest of the front-row seat, so as to be converted from the initial state to the deployed state. And in the deployed state, the upper end of the airbag extends upward above the headrest of the front-row seat, and the lower end of the airbag extends downward at least to be opposite to the knees of the rear-row occupants.
[0008] Further, the airbag includes a gas generator;
[0009] The gas generator is fixed within the backrest of the front-row seat, the gas generator is in communication with the airbag, and the gas generator is communicatively connected to the ECU of the vehicle.
[0010] Further, the airbag includes a first section, a second section, and a third section from top to bottom;
[0011] At the connection between the first section and the second section and at the connection between the third section and the second section, wrinkles are formed, so that when the airbag is in the deployed state, the first section and the third section are both inclined relative to the second section, making the airbag concave and curved toward the side of the rear-row occupants.
[0012] Further, a plurality of inner straps are sequentially arranged inside the airbag from top to bottom. The plurality of inner straps divide the interior of the airbag into a plurality of chambers, and through holes are provided on each of the inner straps.
[0013] Further, the plurality of chambers include a first transition chamber and a second transition chamber;
[0014] At least one of the chambers between the first transition chamber and the second transition chamber forms the second section, at least one of the chambers on a side of the first transition chamber away from the second section forms the first section, and at least one of the chambers on a side of the second transition chamber away from the second section forms the third section;
[0015] There is a first inclination angle A of an acute angle between two inner pull straps forming the first transition chamber and two inner pull straps forming the second transition chamber, so that the airbag forms the pleats at the first transition chamber and the second transition chamber.
[0016] Further, the first inclination angle A satisfies: 30° ≤ A ≤ 80°.
[0017] Further, the lower end of the airbag extends at least downward to a position 67 mm above the seat surface of the rear row seat of the vehicle.
[0018] Further, an airbag off button is provided on the instrument panel of the vehicle, and the airbag off button is communicatively connected to the gas generator through the ECU.
[0019] Further, a child seat interface detection switch is provided on the rear row seat of the vehicle, and the child seat interface detection switch is communicatively connected to the gas generator through the ECU.
[0020] The present utility model also provides a vehicle, including the airbag according to any one of the above.
[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0022] The airbag provided by the present utility model includes an airbag, and the airbag has an initial state of being uninflated. A receiving space is formed in the backrest of the front row seat of the vehicle, so that the airbag in the initial state can be folded and stored in the backrest of the front row seat. The airbag also has an inflated deployed state. When a collision accident occurs to the vehicle, the airbag can be quickly inflated, pop out and deploy backward from the backrest of the front row seat, so as to switch from the folded initial state to the inflated deployed state, thereby forming a gas protection pad between the rear row occupant and the backrest of the front row seat. At the same time, when the airbag is in the inflated deployed state, the upper end of the airbag extends upward above the headrest of the front row seat, and the lower end of the airbag extends at least downward to be opposite to the knees of the rear row occupant. Thus, when a collision accident occurs, it can prevent the head, chest and knees of the rear row occupant from directly colliding with the front row seat, and play a buffering role, effectively reducing the injuries suffered by the head, chest and knees of the rear row occupant.
[0023] The present utility model also provides a vehicle, including the airbag described above, so the vehicle also has the beneficial effects of the airbag. Description of the Drawings
[0024] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0025] Figure 1 Structural schematic diagram of the airbag deployed on the front seat provided by the embodiment of the present utility model;
[0026] Figure 2 Structural schematic diagram of the airbag of the airbag provided by the embodiment of the present utility model from the first perspective;
[0027] Figure 3 Structural schematic diagram of the airbag of the airbag provided by the embodiment of the present utility model from the second perspective.
[0028] Reference Signs:
[0029] 1 - Front seat, 2 - Airbag, 21 - First section, 22 - Second section, 23 - Third section, 24 - Fold, 25 - First transition chamber, 26 - Second transition chamber, 27 - Inner pull belt, 28 - Through hole. Detailed Embodiments
[0030] The following will clearly and completely describe the technical solutions of the present utility model in conjunction with the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model.
[0031] Generally, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model.
[0032] Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0033] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0034] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0035] Next, refer to Figures 1 to 3 Describe an airbag and a vehicle according to some embodiments of the present application.
[0036] The present application provides an airbag for protecting the rear occupants of a vehicle when a collision accident occurs to the vehicle.
[0037] As Figure 1 shown, the airbag includes an airbag 2. The airbag 2 has an initial state of being uninflated. A receiving space is formed inside the backrest of the front seat 1 of the vehicle, so that the airbag 2 in the initial state can be folded and stored inside the backrest of the front seat 1. The airbag 2 also has an inflated deployed state. When a collision accident occurs to the vehicle, the airbag 2 can be quickly inflated, pop out and deploy backward from the backrest of the front seat 1, so as to switch from the folded initial state to the inflated deployed state, thereby forming a gas protection pad between the rear occupant and the backrest of the front seat 1.
[0038] At the same time, when the airbag 2 is in the inflated deployed state, the upper end of the airbag 2 extends upward above the headrest of the front seat 1, and the lower end of the airbag 2 extends at least downward to be opposite to the knees of the rear occupant. Thus, when a collision accident occurs, it can prevent the head, chest and knees of the rear occupant from directly colliding with the front seat 1 and play a buffering role, effectively reducing the injuries suffered by the head, chest and knees of the rear occupant.
[0039] In this embodiment, preferably, the airbag further includes a gas generator, which is fixed inside the backrest of the front-row seat 1. The gas generator is in communication with the airbag 2 and is communicatively connected to the vehicle's ECU (electronic control unit). When a vehicle collision accident occurs and the airbag needs to be deployed, the vehicle's ECU can control the gas generator to start, so as to inflate the air cushion with the gas generator, and make the air cushion pop out and deploy backward from the backrest of the front-row seat 1.
[0040] In an embodiment of the present application, preferably, as Figure 2 shown, the airbag 2 includes a first section 21, a second section 22, and a third section 23. The first section 21, the second section 22, and the third section 23 are arranged in sequence from top to bottom. That is, the first section 21 is mainly used to protect the head of the rear-row occupant, the second section 22 is mainly used to protect the chest of the rear-row occupant, and the third section 23 is mainly used to protect the knees and straighten the calves of the rear-row occupant.
[0041] The airbag 2 is formed with pleats 24 at the connection between the first section 21 and the second section 22, and pleats 24 are also formed at the connection between the third section 23 and the second section 22. When the airbag 2 is in the deployed state, the upper end of the first section 21 is inclined toward the rear-row occupant compared with the second section 22, and the lower end of the third section 23 is also inclined toward the rear-row occupant compared with the second section 22. That is, the side of the deployed airbag 2 facing the rear-row occupant is concave and curved, so that in the event of an accident, it can buffer the head and knees of the rear-row occupant in a timely and effective manner. At the same time, when protecting the chest of the rear-row occupant, it can also effectively reduce the chest rib compression amount.
[0042] In this embodiment, preferably, in the vertical height direction, when the airbag 2 is inflated and deployed, the lower end of the airbag 2 extends at least 67 mm above the seat surface of the vehicle's rear-row seat, so as to effectively protect the knees of the rear-row occupant. Of course, the lower end of the airbag 2 can also extend below the seat surface of the rear-row seat to protect the calves of the rear-row occupant.
[0043] In an embodiment of the present application, preferably, as Figure 3As shown, an inner drawband 27 is provided inside the airbag 2, and the number of inner drawbands 27 is multiple. When the airbag 2 is in the inflated and deployed state, the multiple inner drawbands 27 are arranged in sequence from top to bottom, so that the inside of the airbag 2 is separated by the multiple inner drawbands 27 into multiple chambers from top to bottom. The thickness of the airbag when it unfolds can be effectively controlled by the multiple inner drawbands 27. At the same time, through holes 28 are provided on each inner drawband 27, so that all the chambers inside the airbag 2 are interconnected, enabling the airbag 2 to be inflated quickly. Moreover, by controlling the size and number of the through holes 28, the deployment speed of the airbag 2 can be effectively controlled.
[0044] In this embodiment, preferably, as Figures 1 to 3 shown, among the multiple chambers inside the airbag 2, there are a first transition chamber 25 and a second transition chamber 26. There is at least one chamber between the first transition chamber 25 and the second transition chamber 26, forming the above-mentioned second section 22. There is at least one chamber on the side of the first transition chamber 25 away from the second section 22, forming the above-mentioned first section 21. There is also at least one chamber on the side of the second transition chamber 26 away from the second section 22, forming the above-mentioned third section 23. That is, when the airbag 2 is inflated and deployed, the first transition chamber 25 is above the second transition chamber 26, and the second section 22 is formed between them. At least one chamber above the first transition chamber 25 forms the first section 21, and at least one chamber below the second transition chamber 26 forms the third section 23.
[0045] In this embodiment, the inner drawband 27 in the airbag 2 is a flat sheet. There is a first inclination angle A of an acute angle between the two inner drawbands 27 forming the first transition chamber 25 and between the two inner drawbands 27 forming the second transition chamber 26, so that the above-mentioned wrinkles 24 are formed at the first transition chamber 25 and the second transition chamber 26 of the airbag 2. When the airbag 2 unfolds, the height of the first transition chamber 25 on the side facing the front row seat 1 is greater than the other side, and the height of the second transition chamber 26 on the side facing the front row seat 1 is also greater than the other side. Thus, when the airbag 2 is inflated and deployed, the surface of the airbag 2 on the side facing the rear occupant is concave and curved.
[0046] Preferably, as Figure 3 shown, the two inner drawbands 27 forming the first transition chamber 25 are inclined and intersect on the side facing the rear occupant, and the two inner drawbands forming the second transition chamber 26 are inclined and intersect on the side facing the rear occupant.
[0047] Preferably, the first inclination angle A satisfies 30° ≤ A ≤ 80°, so that after the airbag 2 is inflated and deployed, the upper end of the first section 21 and the lower end of the third section can both be inclined at an appropriate angle towards the rear occupant compared to the second section 22, effectively playing a role in buffering and protecting the rear occupant. Further preferably, the first inclination angle A satisfies 35° ≤ A ≤ 50°.
[0048] In one embodiment of the present application, preferably, a plurality of positioning straps (not shown in the figure) are further provided on the outer side of the airbag 2, and the other ends of the plurality of positioning straps are connected to the front row seat 1 to control the deployment direction of the airbag 2 through the plurality of positioning straps and guide the airbag 2 to the area where the rear row occupants need to be protected; specifically, when the airbag 2 deploys, positioning straps are provided at least on the upper and lower sides of the airbag 2. Thus, under the action of the plurality of inner straps 27 and the plurality of positioning straps, the airbag 2 is controlled to deploy to a predetermined shape and a predetermined position.
[0049] In one embodiment of the present application, preferably, an airbag off button is provided on the vehicle dashboard. The airbag off button is communicatively connected to the gas generator of the airbag 2 through the vehicle's ECU. The front row occupant can operate the airbag off button to turn off the gas generator, so that when a vehicle collision accident occurs, the gas generator will not start either, thereby avoiding the inflation and ejection of the airbag 2 when there are no rear row occupants, and also avoiding the inflation and ejection of the airbag 2 from causing harm to children when a child seat is placed on the rear row seat.
[0050] In another embodiment of the present application, preferably, a child seat detection switch is provided on the rear row seat of the vehicle. The child seat detection switch is communicatively connected to the gas generator of the airbag 2 through the vehicle's ECU.
[0051] The child seat detection switch is used to detect whether the child seat interface on the rear row seat of the vehicle is completely connected to detect whether a child seat is installed on the rear row seat; when the child seat detection switch detects that a child seat has been installed, the child seat detection switch can send a signal to the vehicle's ECU; in a subsequent vehicle collision accident, it can be determined whether to activate the rear airbag through the detonation strategy of the vehicle restraint system. If activation is required, the gas generator is controlled to start by the ECU, and if activation is not required, the gas generator is controlled by the ECU not to start, so as to avoid the airbag 22 from popping out and causing harm to the children in the rear row.
[0052] The present application also provides a vehicle, including the airbag of any of the above embodiments.
[0053] In this embodiment, the vehicle includes an airbag, so the vehicle has all the beneficial effects of the airbag, which will not be elaborated one by one here.
[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. An airbag, characterized in that, The airbag includes an airbag cushion; The airbag cushion has an initial non-inflated state and an inflated deployed state; In the initial state, the airbag cushion is configured to be folded within the backrest of the front seat of the vehicle; The airbag cushion can be inflated to pop out and deploy backward from the backrest of the front seat, so as to be converted from the initial state to the deployed state. In the deployed state, the upper end of the airbag cushion extends upward above the headrest of the front seat, and the lower end of the airbag cushion extends at least downward to be opposite to the knees of the rear occupant.
2. The airbag according to claim 1, characterized in that, The airbag includes a gas generator; The gas generator is fixed within the backrest of the front seat, the gas generator is in communication with the airbag cushion, and the gas generator is communicatively connected to the ECU of the vehicle.
3. The airbag according to claim 1, characterized in that, The airbag cushion includes a first section, a second section, and a third section from top to bottom; At the connection between the first section and the second section and at the connection between the third section and the second section, folds are formed, so that when the airbag cushion is in the deployed state, both the first section and the third section are inclined with respect to the second section, and the airbag cushion is concave-curved toward the side of the rear occupant.
4. The airbag according to claim 3, characterized in that, Inside the airbag cushion, a plurality of inner straps are provided in sequence from top to bottom. The plurality of inner straps divide the interior of the airbag cushion into a plurality of chambers, and through holes are provided on each of the inner straps.
5. The airbag according to claim 4, characterized in that, The plurality of chambers include a first transition chamber and a second transition chamber; At least one of the chambers between the first transition chamber and the second transition chamber forms the second section, at least one of the chambers on the side of the first transition chamber away from the second section forms the first section, and at least one of the chambers on the side of the second transition chamber away from the second section forms the third section; There is a first inclination angle A that is an acute angle between the two inner straps forming the first transition chamber and the two inner straps forming the second transition chamber, so that the airbag cushion forms the folds at the first transition chamber and the second transition chamber.
6. The airbag according to claim 5, characterized in that, The first inclination angle A satisfies: 30° ≤ A ≤ 80°.
7. The airbag according to claim 1, characterized in that, The lower end of the airbag cushion extends at least downward to a position 67 mm above the seat surface of the rear seat of the vehicle.
8. The airbag according to claim 2, characterized in that, An airbag off button is provided on the instrument panel of the vehicle, and the airbag off button is communicatively connected to the gas generator through the ECU.
9. The airbag according to claim 2, wherein A child seat interface detection switch is provided on the rear seat of the vehicle, and the child seat interface detection switch is communicatively connected to the gas generator through the ECU.
10. A vehicle, characterized in that, An airbag as claimed in any one of claims 1 to 9 is included.