CN221137999U - Curtain airbag and vehicle - Google Patents
Curtain airbag and vehicle Download PDFInfo
- Publication number
- CN221137999U CN221137999U CN202322593868.4U CN202322593868U CN221137999U CN 221137999 U CN221137999 U CN 221137999U CN 202322593868 U CN202322593868 U CN 202322593868U CN 221137999 U CN221137999 U CN 221137999U
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- China
- Prior art keywords
- airbag
- woven fabric
- air bag
- vehicle
- curtain
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- 239000002759 woven fabric Substances 0.000 claims description 37
- 239000004744 fabric Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Air Bags (AREA)
Abstract
The utility model discloses a curtain airbag which comprises a first airbag, a second airbag and an inflator, wherein the first airbag is unfolded towards the front of an occupant when being unfolded, the second airbag is unfolded towards the side face of the occupant when being unfolded, the first airbag is communicated with the second airbag and connected with the inflator, the curtain airbag further comprises a third airbag, the first airbag is inserted into the third airbag, a vent hole facing a windshield is arranged on the third airbag, when the first airbag is unfolded, external air enters the third airbag through the vent hole, and after the third airbag is full, the vent hole is blocked by the windshield. The utility model also discloses a vehicle. The utility model can meet the requirements of front collision and side collision at the same time.
Description
Technical Field
The utility model relates to the technical field of safety airbags, in particular to a curtain type safety airbag and a vehicle.
Background
The existing curtain airbag is installed on a roof in a vehicle, and when collision occurs, the curtain airbag is unfolded downwards from the roof, and the unfolded airbag extends to the front and the side of an occupant, so that the front and the side of the occupant are protected.
In a frontal collision, which requires a much greater energy absorption than a side collision, a frontal protection airbag typically requires a vent. There is a rollover protection requirement in a side impact (e.g., for CNCAP curtain airbags require at least 50% of the pressure to remain within 6 seconds after the impact). To meet this requirement, no vent holes are allowed in curtain airbags. Therefore, it is impossible for the existing curtain airbag to satisfy both the front collision and the side collision.
Therefore, there is a need to design a curtain airbag and a vehicle that can meet both the requirements of a frontal collision and a side collision.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provide a curtain airbag and a vehicle which can simultaneously meet the requirements of front collision and side collision.
The technical scheme of the utility model provides a curtain airbag which comprises a first airbag, a second airbag and an inflator, wherein the first airbag is unfolded towards the front of an occupant when being unfolded, the second airbag is unfolded towards the side face of the occupant when being unfolded, the first airbag is communicated with the second airbag and is connected with the inflator, the curtain airbag further comprises a third airbag, the first airbag is inserted into the third airbag, a vent hole facing a windshield is arranged on the third airbag, when the first airbag is unfolded, external air enters the third airbag through the vent hole, and after the third airbag is filled, the vent hole is blocked by the windshield.
Further, an air guide channel is arranged between the first air bag and the second air bag, the inflator is connected with an air guide pipe, the air guide pipe is inserted into the air guide channel, and the air guide pipe guides air into the first air bag and the second air bag respectively.
Further, the first air bag is an integrally woven air bag.
Further, the third air bag comprises a first woven fabric, a second woven fabric and a third woven fabric, the first woven fabric and the second woven fabric are identical in shape, the first woven fabric and the second woven fabric are respectively positioned at the left side and the right side of the third air bag, the third woven fabric is positioned between the first woven fabric and the second woven fabric, and the vent holes are formed in the third woven fabric.
Further, the third air bag includes a support portion connected with the roof, the support portion is deployed along the windshield, the buffer portion is located below the support portion, the buffer portion is deployed toward the occupant, and a volume of the support portion is smaller than a volume of the buffer portion.
The utility model also provides a vehicle comprising a curtain airbag as claimed in any one of the preceding claims.
Further, the inflator is mounted in an a-pillar of the vehicle.
Further, the first air bag, the second air bag, and the third air bag are folded in a roof trim of the vehicle.
Further, the curtain airbag is mounted at a side of a main drive of the vehicle.
Further, the curtain airbag is mounted on a side of a co-driver of the vehicle.
After the technical scheme is adopted, the method has the following beneficial effects:
In the utility model, during side collision, an occupant collides with the second air bag, and at the moment, because the vent hole of the third air bag is blocked by the windshield, and no vent hole exists in the first air bag and the second air bag, no exhaust is generated, and the pressure maintaining requirement of the side air bag is met; during front collision, an occupant collides with the third air bag, so that the vent holes are exhausted after deformation, and meanwhile, as the first air bag is positioned in the third air bag, the first air bag plays a supporting role, and the first air bag and the third air bag jointly absorb larger energy, so that the requirements of the front safety air bag are met.
Drawings
The present disclosure will become more readily understood with reference to the accompanying drawings. It should be understood that: the drawings are for illustrative purposes only and are not intended to limit the scope of the present utility model. In the figure:
FIG. 1 is a schematic view of a first airbag and a second airbag of a curtain airbag in accordance with an embodiment of the present utility model;
FIG. 2 is a schematic view of a third airbag of a curtain airbag in accordance with an embodiment of the present utility model;
FIG. 3 is an exploded view of a third airbag according to an embodiment of the present utility model;
fig. 4 is a schematic view of a curtain airbag according to an embodiment of the present utility model after deployment in a vehicle.
Reference numeral control table:
a first air bag 1;
a second air bag 2: air guide passage 21
Third air bag 3: the ventilation holes 31, the first cloth 32, the second cloth 33, the third cloth 34, the supporting part 35, the buffer part 36, the concave part 37;
Inflator 4: an air duct 41;
a windshield 10, an a-pillar 20, a roof 30, a seat 40, and side windows 50.
Detailed Description
Specific embodiments of the present utility model will be further described below with reference to the accompanying drawings.
It is to be readily understood that, according to the technical solutions of the present utility model, those skilled in the art may replace various structural modes and implementation modes with each other without changing the true spirit of the present utility model. Accordingly, the following detailed description and drawings are merely illustrative of the utility model and are not intended to be exhaustive or to limit the utility model to the precise form disclosed.
Terms of orientation such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possible to be mentioned in the present specification are defined with respect to the configurations shown in the drawings, which are relative concepts, and thus may be changed according to different positions and different use states thereof. These and other directional terms should not be construed as limiting terms.
In some embodiments of the present utility model, as shown in fig. 1 to 4, the curtain airbag includes a first airbag 1, a second airbag 2, and an inflator 4, wherein the first airbag 1 is deployed toward the front of an occupant, the second airbag 2 is deployed toward the side of the occupant when deployed, the first airbag 1 communicates with the second airbag 2 and is connected to the inflator 4, and further includes a third airbag 3, the first airbag 1 is inserted into the third airbag 3, a vent hole 31 facing the windshield 10 is provided in the third airbag 3, and when the first airbag 1 is deployed, outside air is introduced into the third airbag 3 through the vent hole 31, and the vent hole 31 is blocked by the windshield 10 after the third airbag 3 is filled.
Specifically, as shown in fig. 1, the inflator 4 is directly connected to the first air bag 1 and the second air bag 2, and the inflator 4 inflates the first air bag 1 and the second air bag 2 when a collision occurs. The first air bag 1 is deployed toward the front of the occupant, and as shown in fig. 4, the second air bag 2 is deployed toward the side of the occupant, the second air bag 2 is deployed from the roof 30 downward along the side window 50, and the second air bag 2 is used to protect the side of the occupant.
As shown in fig. 2 and 4, the third air bag 3 is sleeved outside the first air bag 1, and the third air bag 3 is provided with a vent hole 31. When the first air bag 1 is inflated and unfolded downwards by the inflator 4, the first air bag 1 drives the third air bag 3 to be unfolded downwards along the windshield 10 from the roof 30, external air flows into the third air bag 3 through the vent holes 31 in the unfolding process of the third air bag 3, and when the third air bag 3 is unfolded to be closely attached to the windshield 10, the vent holes 31 are blocked by the windshield 10, so that the third air bag 3 is kept in an unfolded state. The third air bag 3 and the first air bag 1 are located in front of the seat 40 for protecting the head and upper body of the occupant.
In the present embodiment, during a side collision, the occupant collides with the second air bag 2, and at this time, since the vent hole 31 of the third air bag 3 is blocked by the windshield 10 and no vent holes are provided in the first air bag 1 and the second air bag 2, no exhaust is generated, and the pressure maintaining requirement of the side air bag is satisfied; during a frontal collision, an occupant collides with the front surface of the third air bag 3, so that the vent hole 31 is deformed and then exhausted, and meanwhile, as the first air bag 1 is positioned in the third air bag 3, the first air bag 1 plays a supporting role, and the first air bag 1 and the third air bag 3 jointly absorb larger energy, so that the requirement of a frontal air bag is met.
Further, as shown in fig. 1, an air guide passage 21 is provided between the first air bag 1 and the second air bag 2, the inflator 4 is connected to an air guide pipe 41, the air guide pipe 41 is inserted into the air guide passage 21, and the air guide pipe 41 guides the air into the first air bag 1 and the second air bag 2, respectively.
Specifically, the gas of the inflator 4 firstly enters the gas guide tube 41, the gas guide tube 41 comprises two gas outlets, and the two gas outlets are respectively introduced into the first gas bag 1 and the second gas bag 2, so that the first gas bag 1 and the second gas bag 2 are inflated simultaneously.
Further, the first air bag 1 is an integrally woven air bag which can be rapidly deployed from the roof trim/headliner and complete the full extension. Can be used for two purposes of primary collision and rolling prevention of vehicles. The materials can be as follows: nylon 66, polyester, characteristics: high strength, good flame retardance and high wear resistance.
Further, as shown in fig. 3, the third air bag 3 includes a first woven fabric 32, a second woven fabric 33 and a third woven fabric 34, the first woven fabric 32 and the second woven fabric 33 have the same shape, the first woven fabric 32 and the second woven fabric 33 are respectively positioned at the left side and the right side of the third air bag 3, the third woven fabric 34 is positioned between the first woven fabric 32 and the second woven fabric 33, and the vent hole 31 is opened on the third woven fabric 34.
The third airbag 3 comprises three woven fabrics, and a third woven fabric 34 is sewn between the first woven fabric 32 and the second woven fabric 33, and finally an airbag with a certain thickness and volume is formed. The vent 31 is provided in the third cloth 34 to face the windshield 10.
Further, as shown in fig. 2, the third air bag 3 includes a support portion 35 and a cushion portion 36, the support portion 35 is connected to the roof 30, the support portion 35 is deployed along the windshield 10, the cushion portion 36 is located below the support portion 35, the cushion portion 36 is deployed toward the occupant, and the volume of the support portion 35 is smaller than the volume of the cushion portion 36.
Specifically, the support portion 35 is connected to the roof 30 and is bonded to the windshield 10 after being unfolded, and the support portion 35 can be supported by the windshield 10, so that stability of the cushion portion 36 after being unfolded is ensured.
The cushion portion 36 has a large volume and is deployed toward the occupant to protect the head and upper body of the occupant.
Preferably, as shown in fig. 2, a recess 37 is left between the support portion 35 and the buffer portion 36, and the head of the human body is entered into the recess 37 for better protecting the head and preventing the occupant from choking when the head collides.
In the present embodiment, since the first airbag 1 and the third airbag 3 are used in combination, the requirements of a frontal collision and a side collision are satisfied at the same time.
In some embodiments of the utility model, as shown in fig. 4, a vehicle includes a curtain airbag in any of the embodiments described above.
Further, as shown in fig. 4, the inflator 4 is installed in the a pillar 20 of the vehicle, the a pillar is located between the windshield 10 and the side window 50, the inflator 4 is installed in the a pillar 20, the second air bag 2 is folded in the roof 30 above the side window 50, and the first air bag 1 and the third air bag 3 are folded in the roof 30 above the windshield 10.
Further, the first air bag 1, the second air bag 2, and the third air bag 3 are folded in the interior panel of the roof 30 of the vehicle. After the inflator 4 is inflated, the first, second and third air bags 1, 2 and 3 open the slit of the trim panel and are deployed downward from the roof 30.
In this embodiment, as shown in fig. 4, the curtain airbag is mounted on the side of the passenger of the vehicle.
Alternatively, the curtain airbag may also be mounted on the main driving side of the vehicle, or on the side of the rear seat.
The curtain airbag of the utility model meets the requirements of both front and side collisions and can be installed on the side of a primary driver seat, or a secondary driver seat, or a rear seat.
What has been described above is merely illustrative of the principles and preferred embodiments of the present utility model. It should be noted that several other variants are possible to those skilled in the art on the basis of the principle of the utility model and should also be considered as the scope of protection of the present utility model.
Claims (10)
1. The curtain type safety airbag comprises a first airbag, a second airbag and an inflator, wherein the first airbag is unfolded towards the front of an occupant, the second airbag is unfolded towards the side face of the occupant, and the first airbag is communicated with the second airbag and connected with the inflator.
2. The curtain airbag of claim 1 wherein an air guide channel is provided between the first and second airbags, the inflator being connected to an air guide tube, the air guide tube being inserted into the air guide channel, the air guide tube introducing gas into the first and second airbags, respectively.
3. The curtain airbag of claim 1 wherein said first airbag is a one-piece woven airbag.
4. The curtain airbag according to claim 1, wherein the third airbag includes a first woven fabric, a second woven fabric, and a third woven fabric, the first woven fabric and the second woven fabric being identical in shape, the first woven fabric and the second woven fabric being located on left and right sides of the third airbag, respectively, the third woven fabric being located between the first woven fabric and the second woven fabric, the vent hole being opened on the third woven fabric.
5. The curtain airbag of claim 1 wherein the third airbag includes a support portion connected to the roof, the support portion being deployed along the windshield, the cushion portion being located below the support portion, the cushion portion being deployed toward the occupant, the support portion having a volume that is less than the volume of the cushion portion.
6. A vehicle comprising a curtain airbag as claimed in any one of claims 1 to 5.
7. The vehicle of claim 6, wherein the inflator is mounted in an a-pillar of the vehicle.
8. The vehicle of claim 6, wherein the first, second, and third air bags are folded in a roof trim panel of the vehicle.
9. The vehicle of claim 6, wherein the curtain airbag is mounted on a main driving side of the vehicle.
10. The vehicle of claim 6, wherein the curtain airbag is mounted to a side of a passenger of the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322593868.4U CN221137999U (en) | 2023-09-22 | 2023-09-22 | Curtain airbag and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322593868.4U CN221137999U (en) | 2023-09-22 | 2023-09-22 | Curtain airbag and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221137999U true CN221137999U (en) | 2024-06-14 |
Family
ID=91415879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322593868.4U Active CN221137999U (en) | 2023-09-22 | 2023-09-22 | Curtain airbag and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221137999U (en) |
-
2023
- 2023-09-22 CN CN202322593868.4U patent/CN221137999U/en active Active
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| GR01 | Patent grant | ||
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