CN114655154A - Side airbag structure of automobile seat - Google Patents

Abstract

The invention provides an automobile seat side air bag structure applied to the technical field of automobile parts, wherein a side air bag (3) of the automobile seat side air bag structure is arranged on a side wing bracket (2), the lower end installation height of the side air bag (3) is higher than the height of a seat part (7) of an automobile seat (1), and the side air bag (3) comprises an air bag middle part (4), an air bag upper inflation part (5) and an air bag lower inflation part (6). The side airbag structure of the automobile seat is simple in structure, and the shape and the installation position of the side airbag are improved and set, so that when an automobile is subjected to severe side collision, the middle part of the airbag is hardly extruded to ribs at the lower part of the chest of a driver and a passenger during the air leakage process of the inflated side airbag, the chest pressure is prevented from being increased, the chest of the driver and the passenger is prevented from being greatly injured, and the personal safety of the passenger is improved.

Description

A car seat side airbag structure

technical field

The invention belongs to the technical field of automobile parts, and more particularly relates to a side airbag structure of an automobile seat.

Background technique

With the continuous improvement of Chinese people's awareness of car safety, a new car safety index agency has been established in the past two years. Due to the huge differences in the evaluation methods of various institutions, each OEM faces greater difficulties and challenges in the development and design of new models. The C-NCAP evaluation items include: 50 km FRB and 50% 50 km MPDB for front collision, 50 km AE-MDB for side collision (trolley mass 1400Kg). The C-IASI evaluation items include: 25% 64 km ODB for front collision, 50 km MDB for side collision (trolley mass 1500Kg). In addition to the difference in the form of vehicle collision, the two evaluation methods also have great differences in test dummies, dummy injury indicators and evaluation definitions. For example, the difference between the C-NCAP side collision and the C-IASI side collision is mainly: ① the weight of the trolley is different by 100kg; ② the shape, size and material design of the collision block are different; ③ the position of the trolley impact test vehicle is different (including the X-direction and Z-direction). ); ④ The dummies placed in the main driver’s seat are different, the C-NCAP side collision is the 50th percentile WorldSid dummy, and the C-IASI side collision is the 5th percentile SidIIs (D version) dummy; ⑤ Each body part of the dummy The damage value indicators and evaluation definitions are also different. In this way, the side impact development needs to balance the body structure and the seat side airbag design. The size of the Worldsid dummy is larger, and the size of the SidIIs (D version) dummy is smaller, and there is a big difference in the sitting height of the dummy. In this way, when the side collision occurs, the door panel armrest squeezes the seat side airbag to move into the car. Because the Worldsid sits high, the lower ribs are higher than the door panel armrest, and the relative positions are in a staggered state. In this way, the door panel armrests squeeze the seat side airbags, and the WorldSid dummy chest is affected very little. However, the SidIIs (D version) dummy has a low sitting position, and the lower ribs and the door panel have an overlapping area. In this way, the door panel armrest squeezes the seat side airbag, and the chest of the SidIIs (D version) dummy is greatly affected. During the deflation process, the middle area of the air bag will squeeze the pressure sensor of the lower rib cage to increase the thoracic pressure, causing great damage to the driver's chest.

At present, on the automobiles on the market, the structural design of the side airbag of the car seat is mainly a round pie-shaped airbag, and the vent hole is a round hole or a long slot hole, and there is no drawstring. The main technical defect of the pie-shaped airbag is that the stiffness distribution of each area is almost the same during the deflation process of the airbag point explosion, and the thickness of each area is almost the same. In this way, it is difficult for the airbag to maximize the damage value of various parts of the body of the driver and passenger, and cannot effectively protect the driver and passenger. At present, in the side impact development of various OEMs, in order to meet the development goals of vehicle safety performance, generally by strengthening the side structure of the body or sacrificing the shape of the door panels and seat flanks. In this way, it is very unfavorable for the shape layout of the door panel and the lightweight design of the vehicle. And greatly increase the development cost and weight.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is: in view of the deficiencies of the prior art, a simple structure is provided, and the shape and installation position of the side airbag are improved and set, so that when the vehicle has a violent side collision, the inflated side airbag In the process of deflation, the middle part of the airbag will hardly squeeze the lower ribs of the driver's thoracic cavity, avoiding the increase of the chest pressure, preventing the driver and passenger's chest from being greatly injured, and improving the personal safety of the car seat side airbag structure.

To solve the above-mentioned technical problems, the technical solution adopted by the present invention is:

The invention is a side airbag structure of a car seat. The car seat 1 is close to the side wing bracket of the door, the side airbag is installed on the side wing bracket, the installation height of the lower end of the side airbag is higher than the seat height of the car seat, and the side airbag includes an airbag. The middle part, the upper inflatable part of the airbag, and the lower inflatable part of the airbag.

The side airbag is connected with the airbag ACU which can control the inflation of the side airbag.

After the airbag ACU controls the inflation of the side airbags, the side airbags are arranged in a zigzag structure, and the width of the middle part of the airbag is smaller than the width of the upper inflatable part of the airbag and the width of the lower inflatable part of the airbag.

The middle part of the airbag, the upper inflatable part of the airbag, and the lower inflatable part of the airbag of the side airbag have an integrated structure.

The car seat is installed on the vehicle body floor.

The airbag ACU controls that when the side airbag is not inflated, the side airbag is set to a structure capable of being retracted in the accommodating cavity on the side wing bracket.

After the airbag ACU controls the inflation of the side airbag, the side airbag is arranged in a structure located at the inner side of the door panel of the vehicle.

After the airbag ACU controls the inflation of the side airbag, the upper airbag inflatable part of the side airbag is set to a structure located just above the airbag lower inflatable part.

Said side airbags are preferably mounted on the flank brackets of the front vehicle seats.

Adopting the technical scheme of the present invention, the working principle and beneficial effects are as follows:

The improvement of the side airbag structure of the automobile seat according to the present invention is mainly reflected in two aspects: on the one hand, the shape of the side airbag is improved. After the ACU controls the inflation of the side airbags, the side airbags are arranged in a zigzag structure. On the other hand, the installation position of the side airbags is improved. The side airbags are installed on the side wing brackets, and the installation height of the lower end of the side airbags is higher than the seat height of the car seat. . In this way, when the car has a severe side collision, the airbag ACU will issue an ignition command, and the side airbags installed on the flank brackets of the car seats will quickly detonate and pop out. It suffered huge damage in a secondary collision with the interior structural parts of the vehicle. Through the shape of the side airbag, when the side airbag pops out and deflates before the side collision of the car occurs, the airbag is filled with gas and presents a figure-8 structure as a whole, which can also be said to be similar to a dumbbell shape. The width of the lower inflatable part is large, which can be said to be thick in the coverage area, and the width of the middle part of the airbag is small, which can also be said to be thin in the central area. In this way, the central area of the airbag hardly squeezes the lower ribs of the occupant, so as to reduce the compression of the lower ribs of the chest. Effectively protect the safety of drivers and passengers, and can expand the scope of human protection. Through the optimized design of the dumbbell-shaped side airbag, there is no need to change the door panel armrest or strengthen the side structure of the body, so as to ensure the safety of drivers and passengers, and at the same time achieve the purpose of reducing project cost, weight and flexible application of door panel shape. The vehicle seat side airbag structure of the present invention is simple in structure, and the shape and installation position of the side airbag are improved and set, so that in the event of a severe side collision of the vehicle, the inflated side airbag will be in the middle part of the airbag during the deflation process. It will hardly squeeze the lower rib cage of the driver and passenger, avoid the increase of the chest pressure, avoid the driver and passenger's chest from being greatly injured, and improve the personal safety of the personnel.

Description of drawings

Below is a brief description of the contents expressed in the drawings of this specification and the symbols in the drawings:

1 is a schematic structural diagram of the vehicle seat side airbag structure of the present invention when it is installed on a vehicle and inflated;

The symbols in the drawings are: 1, car seat; 2, side wing bracket; 3, side airbag; 4, middle part of airbag; 5, upper inflatable part of airbag; 6, lower inflatable part of airbag; 7, seat part; 8, Body floor; 9, car door panel.

Detailed ways

In the following, referring to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention, such as the shape and structure of each component involved, the mutual position and connection relationship between each part, the function and working principle of each part, etc. will be further described. Details of:

As shown in FIG. 1, the present invention is a side airbag structure of a car seat. The car seat 1 is close to the side wing bracket 2 of the door, the side airbag 3 is installed on the side wing bracket 2, and the installation height of the lower end of the side airbag 3 is higher than that of the car. At the height of the seat portion 7 of the seat 1 , the side airbag 3 includes an airbag middle portion 4 , an airbag upper inflatable portion 5 , and an airbag lower inflatable portion 6 . The above structure proposes an improved technical solution for the deficiencies in the prior art. The improvement points are mainly reflected in two aspects: on the one hand, the shape of the side airbag is improved. The side airbag 3 includes the middle part 4 of the airbag, the upper airbag inflatable part 5 and the airbag lower inflatable part 6, so that the airbag ACU controls the side airbag 3 after inflation. On the other hand, the installation position of the side air bag 3 is improved, the side air bag 3 is installed on the side wing bracket 2, and the installation height of the lower end of the side air bag 3 is higher than the seat portion 7 of the car seat 1 high. In this way, when the car has a severe side collision, the airbag ACU generates an ignition command, and the side airbag (seat side airbag) 3 installed on the side wing bracket 2 of the car seat quickly detonates and pops out, and cooperates with the seat belt and seat to restrain the driving and riding. The personnel maintain a good movement posture to prevent them from being seriously injured in the secondary collision with the structural parts inside the vehicle. Through the shape of the side airbag, when the side airbag pops out and deflates before the side collision of the car occurs, the airbag is filled with gas and the whole presents a figure-8 structure, which can also be said to be similar to a dumbbell. The airbag lower inflatable portion 6 has a large width, which can also be said to have a thick coverage area, and a small width of the airbag middle portion 4, which can also be said to have a thin central area. In this way, the central area of the airbag hardly squeezes the lower ribs of the occupant, so as to reduce the compression of the lower ribs of the chest. Effectively protect the safety of drivers and passengers, and can expand the scope of human protection. Through the optimized design of the dumbbell-shaped side airbag, there is no need to change the door panel armrest or strengthen the side structure of the body, which can achieve the purpose of ensuring the safety of drivers and passengers, and at the same time achieve project cost reduction, weight reduction and flexible application of door panel shape. The vehicle seat side airbag structure of the invention has the advantages of simple structure and low cost, and the shape and installation position of the side airbag are improved and set, so that when the vehicle has a severe side collision, the inflated side airbag will be inflated during the deflation process. The middle part of the airbag will hardly squeeze the lower rib cage of the driver and passenger, so as to avoid the increase of the chest pressure, avoid the driver and passenger from being greatly injured on the chest, and improve the personal safety of the passenger.

The side airbag 3 is connected with the airbag ACU which can control the inflation of the side airbag 3 . In the above configuration, the control means controls the side airbags, and the control means also controls other airbags of the vehicle. In this way, in the event of a car collision, each airbag is inflated synchronously to protect the occupants from different parts.

After the airbag ACU controls the inflation of the side airbag 3, the side airbag 3 is arranged in a figure-eight structure, and the width of the middle part 4 of the airbag is smaller than the width of the upper airbag inflatable part 5 and the width of the airbag lower inflatable part 6. With the above structure, when the vehicle collides, the airbag ACU controls the on-off of the side airbag, the side airbag pops out of the side wing bracket 2, and the shape changes to form a figure-eight structure with a small middle and large upper and lower ends. With such a structure, when the occupant is in contact with the side airbag, the central area of the side airbag hardly squeezes the lower rib of the occupant, so as to reduce the compression of the lower rib of the chest. Effectively protect the safety of drivers and passengers, and can expand the scope of human protection.

The airbag middle part 4 , the airbag upper inflatable part 5 , and the airbag lower inflatable part 6 of the side airbag 3 have an integrated structure. The car seat 1 is mounted on the vehicle body floor 8 . When the airbag ACU controls that the side airbag 3 is not inflated, the side airbag 3 is set to a structure capable of being retracted in the accommodating cavity on the side-wing bracket 2 . After the airbag ACU controls the inflation of the side airbag 3, the side airbag 3 is arranged in a structure located at the inner side of the door panel 9 of the automobile. With the above structure, the dumbbell-shaped side airbag 3 has a structure corresponding to the position of the door panel 9 of the automobile door, which not only has the advantages of adapting to the door panel and adapting to various evaluations, but also can reduce the development cost and weight. The airbag can greatly expand the protection of the crowd, and the application of this new airbag in the development of new models has high cost performance.

After the airbag ACU controls the inflation of the side airbag 3 , the upper airbag inflatable portion 5 of the side airbag 3 is set to a structure that is located just above the airbag lower inflatable portion 6 . The side airbag 3 is preferably installed on the side wing bracket 2 of the front car seat 1 . The above structure can reliably protect personnel.

The improvement of the side airbag structure of the automobile seat according to the present invention is mainly reflected in two aspects: on the one hand, the shape of the side airbag is improved. After the ACU controls the inflation of the side airbags, the side airbags are arranged in a zigzag structure. On the other hand, the installation position of the side airbags is improved. The side airbags are installed on the side wing brackets, and the installation height of the lower end of the side airbags is higher than the seat height of the car seat. . In this way, when the car has a severe side collision, the airbag ACU will issue an ignition command, and the side airbags installed on the flank brackets of the car seats will quickly detonate and pop out. It suffered huge damage in a secondary collision with the interior structural parts of the vehicle. Through the shape of the side airbag, when the side airbag pops out and deflates before the side collision of the car occurs, the airbag is filled with gas and presents a figure-8 structure as a whole, which can also be said to be similar to a dumbbell shape. The width of the lower inflatable part is large, which can be said to be thick in the coverage area, and the width of the middle part of the airbag is small, which can also be said to be thin in the central area. In this way, the central area of the airbag hardly squeezes the lower ribs of the occupant, so as to reduce the compression of the lower ribs of the chest. Effectively protect the safety of drivers and passengers, and can expand the scope of human protection. Through the optimized design of the dumbbell-shaped side airbag, there is no need to change the door panel armrest or strengthen the side structure of the body, so as to ensure the safety of drivers and passengers, and at the same time achieve the purpose of reducing project cost, weight and flexible application of door panel shape. The vehicle seat side airbag structure of the present invention is simple in structure, and the shape and installation position of the side airbag are improved and set, so that in the event of a severe side collision of the vehicle, the inflated side airbag will be in the middle part of the airbag during the deflation process. It will hardly squeeze the lower rib cage of the driver and passenger, avoid the increase of the chest pressure, avoid the driver and passenger's chest from being greatly injured, and improve the personal safety of the personnel.

The present invention has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-mentioned methods, as long as various improvements made by the method concept and technical solutions of the present invention are adopted, or the present invention is modified without improvement. If the concept and technical solutions of the invention are directly applied to other occasions, they are all within the protection scope of the present invention.

Claims (9)

1. A car seat side airbag structure, characterized in that: the car seat (1) is close to the side wing bracket (2) of the door, the side airbag (3) is mounted on the side wing bracket (2), and the side airbag (3) The installation height of the lower end is higher than the height of the seat portion (7) of the car seat (1). 2. The side airbag structure of an automobile seat according to claim 1, wherein the side airbag (3) is connected with an airbag ACU capable of controlling the inflation of the side airbag (3). 3. The car seat side airbag structure according to claim 1 or 2, characterized in that: after the airbag ACU controls the inflation of the side airbag (3), the side airbag (3) is arranged in a figure-8 structure, and the middle of the airbag The width of the part (4) is smaller than the width of the upper inflatable part (5) of the airbag and the width of the lower inflatable part (6) of the airbag. 4. The side airbag structure of an automobile seat according to claim 1 or 2, characterized in that: the airbag middle part (4), the airbag upper inflatable part (5) and the airbag lower inflatable part of the side airbag (3) (6) One-piece structure. 5. The side airbag structure for an automobile seat according to claim 1 or 2, wherein the automobile seat (1) is mounted on the vehicle body floor (8). 6. The side airbag structure of an automobile seat according to claim 1 or 2, characterized in that: when the airbag ACU controls the side airbag (3) not inflated, the side airbag (3) is arranged to be retractable on the side wing bracket (3). 2) The structure in the accommodating cavity. 7. The vehicle seat side airbag structure according to claim 1 or 2, characterized in that: after the airbag ACU controls the side airbag (3) to be inflated, the side airbag (3) is arranged to be located on the vehicle door panel (9) The structure of the medial position. 8. The side airbag structure of an automobile seat according to claim 1 or 2, characterized in that: after the airbag ACU controls the inflation of the side airbag (3), the upper airbag portion (5) of the side airbag (3) is provided with It is a structure located just above the inflatable part (6) under the airbag. 9. The vehicle seat side airbag structure according to claim 1 or 2, wherein the side airbag (3) is preferably installed on the side wing bracket (2) of the front car seat (1).

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