A safety curtain, a vehicle body assembly, and a vehicle

Abstract

This utility model relates to a safety curtain airbag, comprising an airbag body. After being filled with gas, the airbag body forms a protective area covering the head and torso of the occupant. The protective area of ​​this utility model extends further downwards along the vehicle height to above the seat cushion, ensuring that the protective area covers not only the occupant's head but also their torso, thereby improving occupant safety performance.

Description

Technical Field

[0001] This utility model relates to the field of vehicle safety technology, and in particular to a safety curtain, a body component, and a vehicle. Background Technology

[0002] With the development of vehicle technology, the safety requirements of vehicle occupants are also increasing. Manufacturers install airbags or curtain airbags in vehicles to improve occupant protection. However, current airbag or curtain airbag technology has a relatively small protection area, mainly protecting the head of the occupant. Therefore, current airbags or curtain airbags lack protection for the torso area of ​​the occupant, resulting in relatively low safety performance of airbags or curtain airbags for vehicle occupants. Occupants are still vulnerable to collision injuries in the event of a vehicle collision. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a safety curtain airbag, a vehicle body component, and a vehicle, which can improve the safety protection performance of the curtain airbag for vehicle occupants.

[0004] To achieve the above objectives, this utility model provides a safety curtain, including an airbag body. After the airbag body is filled with gas, it forms a protective area that covers the head area and torso area of ​​the occupant.

[0005] In one embodiment of the present invention, the protected area has a first height along the vehicle height direction and a first width along the vehicle front-rear direction; the first height is greater than the height of the vehicle window and / or the first width is greater than the width of the vehicle window.

[0006] In one embodiment of the present invention, the protected area includes a protective flow channel, the gas filling direction of the air bag body is a first direction, and the protective flow channel extends along the first direction.

[0007] In one embodiment of the present invention, the air bag body is provided with a non-inflatable area, and the protective flow channel is formed between two adjacent non-inflatable areas and the air bag body.

[0008] In one embodiment of the present invention, the protected area includes a first area and a second area, wherein the first area is the area covering the head area and the torso area, and the thickness of the first area is greater than the thickness of the second area.

[0009] In one embodiment of this utility model, the non-inflatable area covering the head area on the protective area is arranged in a ring shape.

[0010] In one embodiment of this utility model, the non-inflatable area covering the head region on the protective area is arranged in a ring or circle.

[0011] In one embodiment of the present invention, the safety curtain further includes a gas generator and a gas guide bag, wherein the gas guide bag is disposed between the gas generator and the gas bag body.

[0012] On the other hand, a vehicle body assembly is provided, including a vehicle body and the aforementioned safety curtain airbag, wherein the safety curtain airbag is provided with a connector, and the safety curtain airbag is connected to the vehicle body through the connector.

[0013] In one embodiment of the present invention, the connector includes a pull strap, one end of which is connected to the safety curtain airbag, and the other end of which is connected to the vehicle body.

[0014] On the other hand, a vehicle is provided, including the aforementioned safety curtain airbags or body components.

[0015] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0016] The protective area described in this utility model extends downwards along the vehicle body height to above the seat cushion, so that the protective area can cover not only the occupant's head area but also the occupant's torso area, thereby improving the safety protection performance of the occupant. Furthermore, the protective area of ​​this application is applicable to the protection of a single row of occupants; that is, the safety curtain airbag can be installed individually in the front or rear rows to achieve side collision protection for either the front or rear occupants; or safety curtain airbags can be installed in both the front and rear rows to achieve side collision protection for both front and rear occupants. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the safety air curtain of this utility model;

[0019] Figure 2 This is a structural schematic diagram of the vehicle body component of this utility model;

[0020] Figure 3 This is a schematic diagram of the first thickness of the protective flow channel in the protected area of ​​the safety air curtain of this utility model;

[0021] Figure 4 This is a schematic diagram of the second thickness of the protective flow channel in the protected area of ​​the safety air curtain of this utility model.

[0022] Explanation of reference numerals on the accompanying drawings:

[0023] 1. Airbag body; 2. Protected area; 3. Head area; 4. Torso area; 5. Protective flow channel; 6. Non-inflatable area; 7. Gas generator; 8. Air guide bag; 9. Connector; 10. Fixing ear; 11. Pull strap. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Example 1

[0026] Reference Figures 1-4 As shown, the safety curtain of this utility model includes an airbag body 1. After the airbag body 1 is filled with gas, it forms a protective area 2, which covers the head area 3 and torso area 4 of the occupant.

[0027] The safety airbag of this application can protect not only the head area 3 of the occupant, but also the torso area 4. Specifically, as shown... Figure 2 As shown, the safety curtain airbag of this application includes an airbag body 1. After the airbag body 1 is filled with gas, a protective area 2 is formed. The protective area 2 can isolate the direct contact between external collisions and occupants, playing a role in buffering and protection. The protective area 2 of this application extends further downward along the vehicle height direction to the position above the seat cushion, so that the protective area 2 can not only cover the head area 3 of the occupant, but also the torso area 4 of the occupant, which can improve the safety protection performance of the occupant. In addition, the protective area 2 of this application is suitable for the protection of single-row occupants. That is, the safety curtain airbag can be arranged alone in the front row or the rear row to achieve side collision protection for the front row occupants or the rear row occupants; or the safety curtain airbag can be arranged in both the front row and the rear row to achieve side collision protection for the front row occupants and the rear row occupants. Especially for autonomous vehicles, occupants generally sit in the rear row, and the movement of the front seats will affect the effectiveness of the safety curtain airbag. Therefore, the safety curtain airbag of this application can be arranged for the rear row. Compared with the solution of covering the front and rear rows simultaneously with a large airbag airbag, the airbag airbag of this application is easier to arrange and the installation process is relatively simple.

[0028] In one embodiment, the protection area 2 has a first height along the vehicle height direction and a first width along the vehicle front-rear direction; the first height is greater than the height of the window and / or the first width is greater than the width of the window.

[0029] The protection area 2 of this application not only protects the head area 3 and torso area 4 of the occupant, but also prevents the occupant from being cut by glass. Specifically, the protection area 2 formed after the airbag body 1 is filled with gas has a first height and a first width. The first height refers to the height of the protection area 2 along the height direction of the vehicle, and the first width refers to the width of the protection area 2 along the front-rear direction of the vehicle. Furthermore, when the airbag body 1 is filled with gas, the first height of the protection area 2 formed by the airbag body 1 is greater than the height of the window. Therefore, the two ends of the protection area 2 along the height direction are blocked by the window frame (door interior panel), preventing the airbag body 1 filled with gas from floating out of the vehicle through the window. This ensures that the protection area 2 is always kept inside the vehicle, effectively protecting the head area 3 and torso area 4 of the occupant. Alternatively, when the airbag body 1 is filled with gas, if the first width of the protective area 2 formed by the airbag body 1 is greater than the width of the car window, then the two ends of the protective area 2 along the width direction are blocked by the car window frame (car door interior panel), preventing the airbag body 1 filled with gas from floating out of the car window, thereby keeping the protective area 2 inside the car to effectively protect the head area 3 and torso area 4 of the occupants. Alternatively, when the airbag body 1 is filled with gas, the first height of the protective area 2 formed by the airbag body 1 is greater than the height of the car window, and the first width of the protective area 2 is greater than the width of the car window. In this case, both ends of the protective area 2 along the height direction and both ends along the width direction are blocked by the car window frame (door interior panel). That is, the protective area 2 is confined inside the car on all sides. Since the protective area 2 is an integral structural component formed after the airbag body 1 is filled with gas, the protective area 2 is supported by the car window frame (door interior panel), which increases the rigidity of the safety curtain, prevents the airbag body 1 filled with gas from floating out of the car window, reduces the possibility of the airbag body 1 being scratched by the glass, and reduces the possibility of the occupant's head sliding out of the car window. It can effectively protect the occupant's head area 3 and torso area 4, and further improve the safety protection performance of the occupant.

[0030] In one embodiment, the protected area 2 includes a protective flow channel 5, the gas filling direction of the air bag body 1 is a first direction, and the protective flow channel 5 extends along the first direction.

[0031] This application facilitates the smooth expansion of the airbag body 1 by arranging the protective flow channels 5 within the protected area 2. Specifically, the gas filling direction of the airbag body 1 is defined as a first direction, as shown in the image below. Figure 1As shown by the arrow, after the airbag body 1 is filled with gas, it forms several protective flow channels 5. Each protective flow channel 5 is filled with gas, and the gas-filled protective flow channels 5 together form a protective area 2 to protect passengers. When the airbag body 1 is filled with gas, the protective flow channels 5 are arranged along the direction of gas filling, that is, the protective flow channels 5 extend along the first direction, which can effectively guide the airflow, making the airbag body 1 expand more evenly and quickly. This facilitates the smooth expansion of the airbag body 1 when gas is filled, reducing discomfort to passengers. Furthermore, the safety curtain of this application has high rigidity. Specifically, the protective flow channels 5 extend along the first direction, as shown in the image... Figure 2 The orientation shown is as follows: the first direction is from the upper left to the lower right. The second direction is the direction of the occupant's torso when seated (equivalent to the extension of the seat back), as shown in the diagram. Figure 2 As shown in the diagram, the second direction points from the lower left to the upper right. At this point, the first and second directions intersect. Following the structure of the elongated, non-inflatable area 6, several protective airflow channels 5 are connected side-by-side. If the first direction is along the second direction, i.e., the extension direction of the protective airflow channel 5 is along the torso direction, then when the occupant's torso acts on the protected area 2, the protected area 2 is prone to bending along the elongated, non-inflatable area 6 between the two protective airflow channels 5. This would reduce the rigidity of the protected area 2, decrease the safety protection performance of the airbag for the occupant's torso area 4, and hinder gas filling into the airbag body 1. Therefore, the first and second directions are intersected, which facilitates airflow guidance and improves the rigidity of the airbag.

[0032] In one embodiment, the air bag body 1 is provided with a non-inflatable area 6, and the protective flow channel 5 is formed between two adjacent non-inflatable areas 6 and the air bag body 1.

[0033] This application forms a protective flow channel 5 by configuring a non-inflatable area 6. Specifically, an air inlet is provided on the airbag body 1, and the air outlet of the gas generator 7 is connected to the air inlet of the airbag body 1. The airbag body 1 is sealed on all sides except for its air inlet to facilitate the filling and storage of gas into the airbag body 1, forming a protective area 2. The airbag body 1 has a non-inflatable area 6, which connects the sidewalls of the airbag body 1 along its thickness direction. Figure 1As shown, the non-inflatable area 6 extends along the first direction and is elongated or circular in shape, with the appropriate shape and number selected according to actual needs. Taking an elongated non-inflatable area 6 as an example, if several elongated non-inflatable areas 6 extend along the first direction, a protective flow channel 5 is formed between any two adjacent non-inflatable areas 6 and the airbag body 1. Several protective flow channels 5 are connected to form a protective area 2. The protective flow channel 5 forms a long, strip-shaped reinforcing rib, which, together with the door trim panel, provides support along the left-right direction of the vehicle, facilitating the protection of occupants by the safety curtain.

[0034] In one embodiment, the protective area 2 includes a first area and a second area, the first area being the area covering the head area 3 and the torso area 4, and the thickness of the first area being greater than the thickness of the second area.

[0035] This application sets the thickness of the protected area 2 accordingly. Specifically, as follows: Figure 2 As shown, the rear portion of protection area 2 protects the occupant's head area 3 and torso area 4; this area is defined as the first area. The front portion of protection area 2 protects the occupant's arms and other non-head and non-torso areas; this area, excluding the first area, is designated as the second area. Since the occupant's head area 3 and torso area 4 are the most critical protection areas 2, the first area of ​​protection area 2 corresponding to these areas is the area with the highest probability of contact with the occupant. Therefore, the first area of ​​protection area 2 corresponding to the occupant's head area 3 and torso area 4 is thicker to improve the safety protection performance for the occupant's head and torso. Compared to the head area 3 and torso area 4, the non-head and non-torso areas have a lower probability of contact with the airbag; therefore, the second area of ​​protection area 2 corresponding to these areas is thinner to maximize gas filling to the areas within the airbag body 1 where the occupant is most likely to come into contact. Furthermore, the thickness of the first and second regions can be adjusted by positioning the non-inflatable region 6. Further, as... Figure 3 As shown, A, B, and C are all non-inflatable areas 6. The distance between A and B is equal to the distance between B and C. The protective flow channel 5 formed by the side wall of the airbag body 1 connecting A and B has a larger volume, while the protective flow channel 5 formed by the side wall of the airbag body 1 connecting B and C has a smaller volume. Therefore, the final protective flow channel 5 formed between A and B is thicker, and the protective flow channel 5 formed between B and C is thinner. Or as... Figure 4As shown, the volume of the protective flow channel 5 formed by the side walls of the air bag body 1 between A and B is equal to the volume of the protective flow channel 5 formed by the side walls of the air bag body 1 between B and C. The distance between A and B is greater than the distance between B and C. Therefore, the thickness of the protective flow channel 5 formed between A and B is thinner, and the thickness of the protective flow channel 5 formed between B and C is thicker.

[0036] In one embodiment, the non-inflatable region 6 covering the head region 3 on the protective region 2 is arranged in a ring or circle.

[0037] When a vehicle collision occurs, occupants are prone to shaking inside the vehicle. To improve the head protection performance of the side curtain airbags, the non-inflatable area 6 covering the head area 3 on the protection area 2 is arranged in a ring or circle shape. That is, the non-inflatable area 6 covering the head area 3 on the first area is arranged in a ring or circle to form a head protection cavity. The size of the head protection cavity is set according to the size of the occupant's head so that the occupant's head can fit snugly against the non-inflatable area of ​​the ring-shaped head protection cavity, reducing head shaking. Furthermore, the circular or ring-shaped non-inflatable area is relatively small. Along the direction from the non-inflatable area towards the occupant, the circular or ring-shaped non-inflatable area gradually increases in cross-section, forming a cavity (similar to an inverted cone) to accommodate the occupant's head. This cavity acts as a restraint mechanism for the occupant's head, reducing head shaking. Therefore, the area of ​​the circular or ring-shaped non-inflatable area cannot be too large, as this would reduce the head protection performance. Thus, a balance must be struck between the head protection performance and the restraint function.

[0038] In one embodiment, the safety curtain further includes a gas generator 7 and a gas guide bag 8, the gas guide bag 8 being disposed between the gas generator 7 and the gas bag body 1.

[0039] The safety curtain also includes a gas generator 7 and a gas deflector 8. The gas generator 7 is used to ignite and generate gas upon receiving an ignition command. The gas deflector 8 is located between the gas generator 7 and the gas bag body 1. The gas deflector 8 has an inlet and an outlet. The inlet of the gas deflector 8 is connected to the outlet of the gas generator 7, and the outlet of the gas deflector 8 is connected to the inlet of the gas bag body 1. This allows the gas generated by the gas generator 7 to flow through the gas deflector 8 into the gas bag body 1. After the gas bag body 1 is inflated, it expands and contains the gas to provide passive protection for the occupants. Furthermore, the size and location of the gas deflector 8 are determined according to actual needs. The gas generator 7 can be located near the B-pillar, in the middle of the B-pillar or C-pillar, etc.

[0040] Example 2

[0041] A vehicle body assembly is provided, comprising a vehicle body and a side curtain airbag. The side curtain airbag is provided with a connector 9, and the side curtain airbag is connected to the vehicle body via the connector 9. The connector 9 includes a pull strap 11, one end of which is connected to the side curtain airbag, and the other end of which is connected to the vehicle body.

[0042] The vehicle body components of this application include the vehicle body and safety curtain airbags, such as Figure 2 As shown, the safety curtain airbag is installed on the vehicle body. Connectors 9 are provided on the safety curtain airbag, gas generator 7, and air bag 8. The connector 9 on the safety curtain airbag is a fixing lug 10, through which the safety curtain airbag is connected to the vehicle roof. The gas generator 7 and air bag 8 are connected to the vehicle body via corresponding connectors 9 (such as connecting brackets). The gas generator 7 and the air bag 8 are connected to the air inlet by clamps, and the air outlet of the air bag 8 is connected to the air bag body 1 by clamps. In addition to the fixing lug 10, the connector 9 also includes a pull strap 11. One end of the pull strap 11 is connected to the air bag body 1, and the other end is connected to the vehicle body. The pull strap 11 is used to limit the violent shaking of the air bag body 1 caused by the impact of the gunpowder detonation when the air bag body 1 is deployed, and to limit the position of the air bag body 1 when deployed, so that the air bag body 1 can form a fixed protective area 2.

[0043] Example 3

[0044] A vehicle is provided, the vehicle including the above-mentioned safety curtain or body assembly, the safety curtain including an airbag body 1, the airbag body 1 forming a protective area 2 after being filled with gas, the protective area 2 covering the head area 3 and torso area 4 of the occupant.

[0045] The protection area 2 of this application extends further downward along the height of the vehicle body to the position above the seat cushion, so that the protection area 2 can not only cover the head area 3 of the occupant, but also the torso area 4 of the occupant, which can improve the safety protection performance of the occupant and further improve the safety and reliability of the vehicle.

[0046] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A safety curtain, characterized in that: The system includes an airbag body (1), which forms a protective area (2) after being filled with gas. The protective area (2) covers the head area (3) and torso area (4) of the occupant. The protective area (2) has a first height along the vehicle height direction and a first width along the vehicle front-rear direction. The first height is greater than the height of the window and / or the first width is greater than the width of the window.

2. The safety curtain according to claim 1, characterized in that: The protected area (2) includes a protective flow channel (5), the gas filling direction of the gas bag body (1) is a first direction, and the protective flow channel (5) extends along the first direction.

3. The safety curtain according to claim 2, characterized in that: The air bag body (1) is provided with a non-inflatable area (6), and the protective flow channel (5) is formed between two adjacent non-inflatable areas (6) and the air bag body (1).

4. The safety curtain according to claim 1, characterized in that: The protective area (2) includes a first area and a second area. The first area is the area that covers the head area (3) and the torso area (4). The thickness of the first area is greater than the thickness of the second area.

5. The safety curtain according to claim 1, characterized in that: The non-inflatable area (6) covering the head area (3) on the protective area (2) is arranged in a ring or circle.

6. The safety curtain according to claim 1, characterized in that: The safety curtain also includes a gas generator (7) and a gas guide bag (8), with the gas guide bag (8) disposed between the gas generator (7) and the air bag body (1).

7. A vehicle body component, characterized in that: The vehicle includes a vehicle body and a safety curtain as described in any one of claims 1-6, wherein the safety curtain is provided with a connector (9) and the safety curtain is connected to the vehicle body via the connector (9).

8. The vehicle body assembly according to claim 7, characterized in that: The connector (9) includes a pull strap (11), one end of which is connected to the safety curtain and the other end of which is connected to the vehicle body.

9. A vehicle, characterized in that: Includes the safety curtain airbag as described in any one of claims 1-6 or the body assembly as described in any one of claims 7-8.

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