CN215513589U

CN215513589U - Vehicle side air curtain and vehicle

Info

Publication number: CN215513589U
Application number: CN202121647266.7U
Authority: CN
Inventors: 刘君; 谢孔福; 丁涛; 杜波涛
Original assignee: Guangzhou Automobile Group Co Ltd
Current assignee: Guangzhou Automobile Group Co Ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-01-14
Anticipated expiration: 2031-07-19

Abstract

The utility model discloses a vehicle side air curtain and a vehicle, wherein the vehicle side air curtain comprises a first side air curtain structure which is positioned between an A column decorative plate and a vehicle body and is fixedly installed on the vehicle body, the first side air curtain structure is provided with a first seam extending downwards from the top of the A column decorative plate, the first seam divides the first side air curtain structure into a first air bag close to the A column decorative plate and a second air bag far away from the A column decorative plate, and the first seam has a preset length, so that the first air bag close to the A column decorative plate has a preset thickness along the width direction of the vehicle body when the A column decorative plate is fully inflated and unfolded. The utility model can ensure that the side air curtain can be normally unfolded in the side collision or small offset collision accident, thereby providing better protection for drivers and passengers.

Description

Vehicle side air curtain and vehicle

Technical Field

The utility model belongs to the technical field of vehicle safety, and particularly relates to a vehicle side air curtain and a vehicle.

Background

As the requirements for the protection of the Chinese New vehicle evaluation procedure C-NCAP (China-New Car Association Program) and the China Insurance automobile Safety index C-IASI (China Instrument automatic Safety index) become more and more strict, the coverage of a side air curtain protection area is enlarged, and the impact problem to environmental elements when the air curtain is exploded is more prominent.

The existing side air curtain has no protection structure specially aiming at the upright column decorative plate. In the unfolding process of the side air curtain, the risk of damaging drivers and passengers by splashing occurs when the A column decorative plate is broken. If the air curtain impact height adjuster is stuck, there is a risk of insufficient side protection. The partial 7 seat SUV model may cause instability in the third-row occupant protection effect if the third-row deployment is unstable.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the embodiment of the utility model is to provide a vehicle side air curtain and a vehicle, so as to ensure that the side air curtain can be normally unfolded in a side collision or small offset collision accident, and provide better protection for drivers and passengers.

In order to solve the above technical problems, the present invention provides a vehicle side air curtain, including a first side air curtain structure located between an a-pillar trim and a vehicle body and fixedly mounted on the vehicle body, wherein the first side air curtain structure has a first seam extending downward from a position above a top edge of the a-pillar trim, the first seam divides the first side air curtain structure into a first air bag close to the a-pillar trim and a second air bag far from the a-pillar trim, and the first seam has a predetermined length such that the first air bag close to the a-pillar trim has a predetermined thickness in a width direction of the vehicle body when being inflated and deployed.

Further, the thickness of the first air bag along the width direction of the vehicle body when the first air bag is inflated and unfolded is 60 mm-120 mm.

Further, the distance between the first seam and the edge of the A-pillar trim panel is at least 10 mm.

Further, the vehicle side air curtain further comprises a second side air curtain structure which is located between the B column decorative plate and the vehicle body and fixedly mounted on the vehicle body, the second side air curtain structure is provided with an L-shaped second seam, and a third air bag which can be unfolded at the push button of the height adjuster is arranged around the second seam and the edge crimping seam of the second side air curtain structure.

Furthermore, the air inlet of the third air bag is positioned below the third air bag, and the air flow enters the air inlet and is filled into the third air bag from bottom to top to form a U-shaped backflow inflation path.

Further, the third air bag has a width of at least 90mm in the longitudinal direction of the vehicle body when inflated and deployed.

Furthermore, the third air bag is located above the B-column decorative plate when not unfolded, covers the surface of the B-column decorative plate when inflated and unfolded, a height adjuster button is arranged on the B-column decorative plate, and the third air bag is filled when inflated and unfolded to reach the height adjuster button.

Further, the vehicle side air curtain further includes a third side air curtain structure located at the D-pillar region and fixedly mounted on the vehicle body, the third side air curtain structure having a third seam inclined downward toward the rear of the vehicle, the third seam dividing the third side air curtain structure into a fourth air bag and a fifth air bag.

Furthermore, the fourth air bag and the fifth air bag have the same inflation direction, and the volume difference of the filled air bags is not more than 10cm³The length difference of the air flow paths of the inflation gas is not more than 2 cm.

The embodiment of the utility model also provides a vehicle which is provided with the vehicle side air curtain.

The implementation of the utility model has the following beneficial effects: by designing the first seam at the A-column decorative plate, the risk that the A-column decorative plate is broken due to the expansion of the side air curtain and the injury of drivers and passengers by splashes is avoided; by designing a second seam of the B column area, a backflow inflation path is formed in the area, the inflation speed of the air bag is reduced, and the risk that the side protection range is insufficient due to the fact that the side air curtain is unfolded to impact the locking of the altitude controller is avoided; through the design of the third seam of the third row area, the inflation airflow is guided to uniformly flow through two sides of the third seam, and the risk of insufficient protection of passengers in the third row due to unstable unfolding of the third row is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a side air curtain of a vehicle according to an embodiment of the utility model.

Fig. 2 is a schematic view of an assembly structure of a first seam and an a-pillar trim panel in a first side air curtain structure according to a first embodiment of the present invention.

Fig. 3 is a schematic sectional structure view of a-a in fig. 2.

Fig. 4 is a schematic view of an assembly structure of the second side air curtain structure and the B-pillar according to the first embodiment of the utility model.

Fig. 5 is a schematic view of an assembly structure of a third side curtain structure and a D-pillar according to an embodiment of the utility model.

Detailed Description

The following description of the embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments in which the utility model may be practiced. The terms of direction and position of the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer to the direction and position of the attached drawings. Accordingly, the use of directional and positional terms is intended to illustrate and understand the present invention and is not intended to limit the scope of the present invention.

Referring to fig. 1 to 3, a side curtain airbag according to an embodiment of the present invention includes a first side curtain airbag structure fixedly installed on a vehicle body 1 and located between an a-pillar garnish 2 and the vehicle body 1, the first side curtain airbag structure having a first seam 10 extending downward from a position above a top edge of the a-pillar garnish, the first seam 10 dividing the first side curtain airbag structure into a first air bag near the a-pillar garnish and a second air bag far from the a-pillar garnish, the first seam 10 having a predetermined length such that a first air bag 11 near the a-pillar garnish 2 has a predetermined thickness in a width direction of the vehicle body when deployed after being filled with air.

Specifically, the first side air curtain structure is fixed on a metal plate of the vehicle body 1 through bolts or buckles, the A-pillar trim panel 2 is fixed on the metal plate of the vehicle body 1 through bolts or buckles, and the first side air curtain structure is located between the A-pillar trim panel 2 and the metal plate of the vehicle body 1 and used for inflating and unfolding to protect the head of a driver in the event of a side collision or a small offset collision accident, namely a C-IASI protection area shown in FIG. 1. The first seam (seam)10 is inclined downward from the a-pillar garnish 2 toward the front of the vehicle, and ends in a drop shape as shown in fig. 1. Referring to fig. 3 again specifically, the first seam 10 divides the first side air curtain structure into a first air bag 11 close to the a-pillar trim panel 2 and a second air bag 12 far away from the a-pillar trim panel 2, wherein the perimeter of the inflated air bag of the first air bag 11 can be controlled by controlling the length of the first seam 10, and further the inflated thickness of the first air bag 11 is controlled, so that the impact of the inflated side air curtain on the a-pillar trim panel 2 is reduced, and the situation that the a-pillar trim panel 2 is cracked due to excessive deformation to generate splashes and hurt people in the passenger compartment is avoided. It will be appreciated that the longer the first seam 10, the longer the perimeter of the inflated upper bag 11, and the smaller the inflated thickness of the upper bag 11; conversely, the shorter the first seam 10, the shorter the bag circumference after inflation of the upper bag 11, and the greater the inflation thickness of the first bag 11. As an example, when the inflated thickness w of the first air bag 11 is 60mm to 120mm by presetting the length of the first seam 10, it is possible to meet the protection requirements and reduce the impact on the a-pillar trim.

Further, as shown in fig. 2, in order to prevent the first air bag 11 from being blocked by the edge of the a-pillar trim 2 during inflation and being inflated smoothly when the first side air curtain structure is installed, a certain distance d is required between the first seam 10 and the edge of the top of the a-pillar trim 2, and as an example, the distance d should be at least 10mm in this embodiment.

Referring to fig. 4 again, the vehicle side curtain airbag of the present embodiment further includes a second side curtain airbag structure located between the B-pillar garnish 3 and the vehicle body 1 and fixedly mounted on the vehicle body 1 by bolts or buckles, and configured to inflate and deploy to protect the head of the driver in the event of a side collision or a small offset collision, i.e., the C-NCAP protection area shown in fig. 1. The second side air curtain structure is provided with a second seam 20 in an L shape, a third air bag 23 is enclosed by the second seam 20 and the edge pressing seam of the second side air curtain structure, and the air inlet of the third air bag 23 is positioned below the third air bag 23. The third air bag 23 is located above the B-pillar garnish 3 when not deployed, and covers the surface of the B-pillar garnish 3 when inflated and deployed, and a height adjuster button 30 is provided on the B-pillar garnish 3. In the present embodiment, by providing the L-shaped second seam 20, the direction of the air flow during inflation (as shown by the arrow in fig. 4) can be controlled, the air flow enters from the air inlet a shown in fig. 1, and then fills the third air bag 23 from bottom to top to form a U-shaped backflow inflation path, so that the inflation speed of the third air bag 23 can be reduced, and the third air bag 23 is filled when reaching the height adjuster button 30 after being inflated and expanded, thereby preventing the air flow from directly impacting the height adjuster button 30. Further, the width D of the third bag 23 in the vehicle body longitudinal direction at the time of inflation and deployment is at least 90mm, which makes it possible to increase the airflow path and further slow down the inflation speed of the third bag 23.

Referring to fig. 5, the side curtain of the present embodiment further includes a third side curtain structure located in the D-pillar region and fixedly mounted on the vehicle body 1 by bolts or buckles, and is configured to inflate to protect the head of a third row of passengers located in the passenger compartment in the event of a side collision or a small offset collision, i.e., the C-NCAP protection region shown in fig. 1 and 5. It will be appreciated that the D-pillar is typically found on SUVs, MPVs or some large vehicles, at the junction of the rear small window and the rear windscreen. The third side air curtain structure has a third seam 40 that slopes downward toward the rear of the vehicle, the third seam 40 dividing the third side air curtain structure into a fourth air bag 41 and a fifth air bag 42. The fourth and

fifth air bags

41 and 42 are inflated in the same direction (as shown by the arrows in fig. 5), and the filled volumes are similarThe air flow paths of the air are close in length, so that the air curtain structure on the third side is stably unfolded and does not warp due to balanced stress. As an example, the bag volumes of the fourth and

fifth air bags

41 and 42 after filling differ by less than or equal to 10cm³The difference of the lengths of the paths of the air flow of the inflation is less than or equal to 2 cm. The third seam 40 designed in this embodiment can guide the inflation airflow to uniformly flow through the two sides of the third seam 40, ensure that the third side air curtain structure sinks towards the lower part of the vehicle and extends towards the rear part of the vehicle when being unfolded, and avoid the influence on the protection effect of the third row protection area of the vehicle due to insufficient unfolding of the side air curtain.

Corresponding to the vehicle side air curtain in the first embodiment of the utility model, the second embodiment of the utility model also provides a vehicle, which is provided with the vehicle side air curtain in the first embodiment of the utility model.

For the working principle and process of this embodiment, refer to the description of the first embodiment of the present invention, and are not described herein again.

As can be seen from the above description, compared with the prior art, the beneficial effects of the present invention are: by designing the first seam at the A-column decorative plate, the risk that the A-column decorative plate is broken due to the expansion of the side air curtain and the injury of drivers and passengers by splashes is avoided; by designing a second seam of the B column area, a backflow inflation path is formed in the area, the inflation speed of the air bag is reduced, and the risk that the side protection range is insufficient due to the fact that the side air curtain is unfolded to impact the locking of the altitude controller is avoided; through the design of the third seam of the third row area, the inflation airflow is guided to uniformly flow through two sides of the third seam, and the risk of insufficient protection of passengers in the third row due to unstable unfolding of the third row is avoided.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the utility model is not limited by the scope of the appended claims.

Claims

1. A vehicle side curtain airbag comprising a first side curtain airbag structure positioned between an A-pillar trim and a vehicle body and fixedly mounted to the vehicle body, the first side curtain airbag structure having a first seam extending downwardly from a position above a top edge of the A-pillar trim, the first seam dividing the first side curtain airbag structure into a first air bag proximate the A-pillar trim and a second air bag distal from the A-pillar trim, the first seam having a predetermined length such that the first air bag proximate the A-pillar trim has a predetermined thickness in a width direction of the vehicle body when deployed full of air.

2. The vehicle side curtain of claim 1, wherein the first air bag has a thickness in a vehicle body width direction of 60mm to 120mm when inflated and deployed.

3. The vehicle side curtain of claim 2, wherein the first seam is spaced from a top edge of the A-pillar trim panel by at least 10mm or more.

4. The vehicle side curtain of claim 1, further comprising a second side curtain structure positioned between the B-pillar trim panel and the vehicle body and fixedly attached to the vehicle body, the second side curtain structure having an L-shaped second seam, the second seam being crimped to an edge of the second side curtain structure with a third air bag deployable at a highlighter button.

5. The vehicle side curtain of claim 4 wherein the inlet port of the third air bag is located below the third air bag, and the air flow entering the inlet port inflates the third air bag from bottom to top, forming a U-shaped backflow inflation path.

6. The vehicle side curtain of claim 4 wherein said third air bag when inflated and deployed has a width of at least 90mm along the length of the vehicle body.

7. The vehicle side curtain of claim 4 wherein the third airbag is positioned over the B-pillar trim panel when not deployed and covers the surface of the B-pillar trim panel when deployed, the B-pillar trim panel having a height adjuster button, the third airbag being inflated and deployed to fill the third airbag when the height adjuster button is reached.

8. The vehicle side curtain of claim 1, further comprising a third side curtain structure positioned in the D-pillar region and fixedly mounted to the vehicle body, the third side curtain structure having a third seam sloping downwardly toward the rear of the vehicle, the third seam separating the third side curtain structure into a fourth air bag positioned above the third seam and a fifth air bag positioned below.

9. The vehicle side curtain of claim 8 wherein said fourth and fifth air bags are inflated in the same direction and have a difference in volume of less than or equal to 10cm³The difference of the lengths of the paths of the air flow of the inflation is less than or equal to 2 cm.

10. A vehicle characterized by having a vehicle side curtain as claimed in any one of claims 1 to 9.