CN117246269A - Airbag housing, overhead airbag and vehicle - Google Patents
Airbag housing, overhead airbag and vehicle Download PDFInfo
- Publication number
- CN117246269A CN117246269A CN202210655321.XA CN202210655321A CN117246269A CN 117246269 A CN117246269 A CN 117246269A CN 202210655321 A CN202210655321 A CN 202210655321A CN 117246269 A CN117246269 A CN 117246269A
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- Prior art keywords
- airbag
- airbag housing
- housing
- overhead
- air bag
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 53
- 238000009957 hemming Methods 0.000 claims abstract description 24
- 230000002787 reinforcement Effects 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 12
- 239000003351 stiffener Substances 0.000 claims description 4
- 239000011324 bead Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 230000000903 blocking effect Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/214—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in roof panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
The invention relates to the technical field of safety airbags, and provides an airbag shell, an overhead safety airbag and a vehicle. The gasbag casing is used for overhead type air bag, and the whole stamping forming of gasbag casing includes: and the edge reinforcing structure is rolled from the bottom edge of the air bag shell along the air bag unfolding path of the overhead air bag to form a hemming structure. According to the air bag shell, the integral stamping forming is adopted, and at least the edge reinforcing structure positioned at the edge is formed, so that the production process is simplified, the production efficiency is improved, the structural strength is increased, and the air bag shell is ensured not to be damaged or to be greatly deformed when the air bag is inflated and unfolded; the edge reinforcing structure is formed into a hemming structure which is turned over along the airbag unfolding path, and can conform to the airbag unfolding motion, so that the overhead airbag is ensured to be unfolded smoothly, the airbag is prevented from being damaged due to blocking, and the safety is improved.
Description
Technical Field
The invention relates to the technical field of safety airbags, in particular to an airbag shell, an overhead safety airbag and a vehicle.
Background
The overhead airbag is assembled in the roof cross beam area of the vehicle, can be deployed along the windshield and towards the driver's seat/co-driver's seat when the vehicle collides, and plays a role in safety buffer.
Most overhead airbags currently have a housing formed by splicing a plurality of parts, and have problems of low production efficiency and insufficient housing strength to support impact force when the airbag inflates and deploys.
It should be noted that the information disclosed in the foregoing background section is only for enhancement of understanding of the background of the invention and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.
Disclosure of Invention
In view of the above, the present invention provides an airbag housing, an overhead airbag and a vehicle, wherein the airbag housing is integrally formed by punching, and at least an edge reinforcing structure is formed at the edge of the airbag housing, thereby simplifying the production process of the airbag housing, improving the production efficiency of the airbag housing, and simultaneously increasing the strength of the airbag housing, so as to ensure that the airbag housing is not damaged or greatly deformed when the airbag is inflated and deployed.
According to one aspect of the present invention, there is provided an airbag housing for an overhead airbag, the airbag housing being integrally press-molded, comprising: and the edge reinforcing structure is rolled up along the airbag unfolding path of the overhead airbag from the bottom edge of the airbag shell to form a hemming structure.
In some embodiments, the hemming structure is formed as a rounded hemming structure.
In some embodiments, the arc angle α of the hemming structure satisfies: alpha is more than or equal to 45 degrees.
In some embodiments, the rounded diameter d of the hemming structure satisfies: d is more than or equal to 2mm and less than or equal to 12mm.
In some embodiments, the floor of the airbag housing is formed as an arched floor.
In some embodiments, the airbag housing further comprises: a body reinforcing structure formed at a body portion of the airbag housing; the body reinforcing structure is formed as a groove structure recessed toward or away from the interior cavity of the airbag housing.
In some embodiments, the groove depth s of the groove structure satisfies: s is more than or equal to 2mm and less than or equal to 8mm.
In some embodiments, the body reinforcing structure comprises: and the bottom reinforcing structure is formed at the bottom of the air bag shell.
In some embodiments, the bottom reinforcement structure includes at least one first reinforcement rib, each of the first reinforcement ribs extending from one side panel of the airbag housing, through a bottom panel of the airbag housing, to the other side panel of the airbag housing.
In some embodiments, each of the first ribs extends continuously or intermittently.
In some embodiments, the body reinforcing structure comprises: and a back reinforcing structure formed on the back of the air bag housing.
In some embodiments, the back reinforcement structure comprises at least one second stiffener, each second stiffener extending at least from the back panel of the airbag housing to the bottom panel of the airbag housing.
In some embodiments, the airbag housing is formed with a top panel; each second reinforcing rib extends from the top plate, through the back plate and to the bottom plate.
In some embodiments, the airbag housing further comprises: the clamping structure is used for clamping the air bag shell to a top beam area of the vehicle; and/or mounting holes for mounting the airbag housing to the roof rail region.
In some embodiments, the airbag housing is integrally stamped and formed from sheet material; the thickness of the sheet material is between 1mm and 4 mm.
In some embodiments, the airbag housing is for a driver-side or co-driver-side overhead airbag.
According to a further aspect of the invention there is provided an overhead airbag comprising an airbag housing as described in any of the embodiments above.
According to still another aspect of the present invention, there is provided a vehicle equipped with the overhead airbag according to the above-described embodiment; the overhead airbag is fitted to the roof rail region of the vehicle in a direct connection or in an indirect connection.
Compared with the prior art, the invention has the beneficial effects that at least:
the whole air bag shell is formed by stamping, assembly is not needed, the production process can be simplified, the production efficiency is improved, the cost is reduced, the strength of the air bag shell can be increased, and the problem that the strength of the assembled/spliced shell is insufficient to support the impact force when the air bag is inflated and unfolded is solved; the whole structure of the air bag shell is compact, so that the installation space of the overhead type air bag can be effectively saved;
in addition, the air bag shell can further strengthen the structural strength through the edge reinforcing structure formed at the edge, so that the impact resistance of the air bag shell is effectively improved, and the air bag shell is ensured not to be damaged or to be greatly deformed when the air bag is inflated and unfolded; the edge reinforcing structure is formed into a hemming structure which is turned over along an airbag unfolding path, and can also conform to the airbag unfolding motion, so that the overhead airbag is ensured to be unfolded smoothly, the airbag is prevented from being damaged due to blocking, and the safety is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention. It is evident that the figures described below are only some embodiments of the invention, from which other figures can be obtained without inventive effort for a person skilled in the art.
FIGS. 1 and 2 are schematic perspective views showing different views of an airbag housing in one embodiment of the present invention;
FIG. 3 shows a schematic side view of the airbag housing shown in FIGS. 1 and 2;
FIG. 4 is a schematic perspective view showing an airbag housing in accordance with still another embodiment of the present invention;
FIG. 5 shows a schematic side view of the air bag housing shown in FIG. 4;
FIG. 6 is a schematic side view of the edge reinforcement and bottom reinforcement of the airbag housing in accordance with an embodiment of the invention;
FIG. 7 is a schematic perspective view showing an air bag housing according to still another embodiment of the present invention;
FIG. 8 is a schematic perspective view showing an air bag housing according to still another embodiment of the present invention;
FIG. 9 is a schematic perspective view showing an overhead airbag according to an embodiment of the present invention;
fig. 10 is a schematic perspective view showing an overhead airbag according to still another embodiment of the present invention.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.
The drawings are merely schematic illustrations of the present invention and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. The use of the terms "first," "second," and the like in the description herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.
It should be noted that, without conflict, the embodiments of the present invention and features in different embodiments may be combined with each other.
The airbag housing of the embodiment of the invention is used for an overhead airbag, and the overhead airbag can comprise an overhead airbag on the driving side and an overhead airbag on the copilot side.
FIGS. 1 and 2 illustrate a perspective structure of an airbag housing from different perspectives in one embodiment, and FIG. 3 illustrates a side view structure of the airbag housing illustrated in FIGS. 1 and 2; fig. 4 shows a perspective structure of an airbag housing in yet another embodiment, and fig. 5 shows a side view structure of the airbag housing shown in fig. 4. The overhead airbag is mounted to the roof rail region of the vehicle with the forward direction "y" of the airbag housing 100 toward the windshield of the vehicle; when the airbag inflates, it deploys along the windshield and toward the driver/passenger seat.
As shown in fig. 1 to 5, in the embodiment of the present invention, the airbag housing 100 is integrally press-molded, including:
the edge reinforcement structure 120 is rolled up along an airbag deployment path of the overhead airbag from the bottom edge of the airbag case 100 to form a hemming structure.
The air bag shell 100 is formed by integral stamping without assembly, so that the production process can be simplified, the production efficiency can be improved, the cost can be reduced, the strength of the air bag shell 100 can be increased, and the problem that the strength of the assembled/spliced shell is insufficient to support the impact force when the air bag is inflated and unfolded can be solved; and the airbag housing 100 has a compact overall structure, and can effectively save the installation space of the overhead airbag.
The above-mentioned air bag shell 100 further enhances the structural strength by the edge reinforcing structure 120 formed at the edge, effectively improves the impact resistance of the air bag shell 100, and ensures that the air bag shell 100 is not damaged or greatly deformed when the air bag is inflated and deployed; and the edge reinforcement structure 120 is formed as a hemming structure that is rolled along an airbag deployment path, and also conforms to the airbag deployment movement, ensuring smooth deployment of the overhead airbag, avoiding damage to the airbag due to blocking, thereby improving safety.
In one embodiment, the airbag housing 100 may be integrally stamped and formed from sheet material; the thickness of the sheet material is between 1mm and 4 mm. For example, the sheet material has a thickness of 1mm, 1.6mm, 2.2mm, 3mm, 3.3mm, 4mm, and so on.
The thickness of the sheet material can also be adjusted as desired, not limited to 1mm to 4 mm. The thicker the thickness, the higher the strength of the pressed airbag housing 100; of course, the sheet material is not too thick in consideration of the light weight design, the compact design, and the ease of the pressing process of the airbag case 100.
The sheet material is typically selected from high strength metallic materials such as high strength steel sheet. The sheet material may be other suitable material as long as it can be pressed into the high-strength airbag housing 100.
Fig. 6 illustrates a side view of the edge reinforcement structure and the bottom reinforcement structure of the airbag housing, and in combination with fig. 1-6, in one embodiment, the edge reinforcement structure 120 forms a hemming structure, which may be a circular arc hemming structure.
The airbag deployment path of the overhead airbag, generally indicated by arrow P in fig. 6, deploys along the windshield and toward the driver/passenger side. The edge reinforcement structure 120 is formed as an arc-shaped hemming structure, and is capable of conforming to the airbag deployment movement, avoiding blocking the airbag deployment path, ensuring smooth deployment of the overhead airbag, and improving safety.
In one embodiment, the arc angle α of the hemming structure may satisfy: alpha is more than or equal to 45 degrees. That is, the ends of the edge reinforcement structure 120 extend at least downward and preferably continue to roll, i.e., toward the driver/passenger seat, to follow the airbag deployment path to avoid hemming cuts to the airbag.
The greater the arc angle α, the more the edge reinforcement structure 120 is able to avoid hemming the airbag. For example, in some preferred embodiments, α >180 °; in addition, considering the convenience of the stamping process, the arc angle alpha specifically can satisfy: 180 ° < α+.ltoreq.225 °, e.g., α=200°, α=223°, etc.
In one embodiment, the circular arc diameter d of the hemming structure may satisfy: d is more than or equal to 2mm and less than or equal to 12mm. For example, d=2 mm, d=4.5 mm, d=7.5 mm, d=12 mm, and so on. By defining the circular arc diameter d, the edge reinforcement structure 120 can be ensured to have sufficient structural strength, have good compliance and guiding effects on the airbag deployment movement, and can be prevented from interfering with other structural components of the roof area.
The bottom plate 100a of the airbag housing 100 may be formed as a flat bottom plate as shown in fig. 1 and 4.
Fig. 7 and 8 show the perspective structure of the airbag housing in two different embodiments. Referring to fig. 7 and 8, the bottom plate 100a of the airbag housing 100 may also be formed as an arched bottom plate. The bottom plate 100a is preferably inwardly arched, and the curvature thereof can be designed as desired; by the arch design, the bearing force of the bottom plate 100a can be improved, and the impact resistance of the air bag housing 100 is further improved.
Preferably, in the case where the bottom plate 100a of the airbag housing 100 is formed as an arched bottom plate, as shown in fig. 7 and 8, the edge reinforcement structure 120 also follows the arched curvature of the bottom plate 100a, forming a hemming structure having an arched curvature.
With continued reference to fig. 1-8, in one embodiment, the airbag housing 100 further comprises: the body reinforcing structure 110 is formed in the body portion of the airbag housing 100. Through the body reinforcing structure, the whole structure of the air bag housing 100 can be reinforced and protected, and the air bag housing 100 is prevented from being greatly deformed or damaged due to the impact force of air bag inflation and deployment.
In one embodiment, the body reinforcement structure 110 is formed as a groove structure recessed toward or away from the interior cavity of the airbag housing 100. In a preferred embodiment, the body reinforcement structure 110 is recessed away from the interior cavity of the airbag housing 100 (i.e., recessed outwardly relative to the airbag housing 100) to sufficiently absorb the impact forces on the airbag housing 100 upon inflation and deployment of the airbag, without impeding deployment of the airbag.
The body reinforcement structure 110 may also be recessed toward the interior cavity of the airbag housing 100 (i.e., inwardly relative to the airbag housing 100) in the event that interference with other structural components of the roof area is to be avoided, or in other considerations. The body reinforcement structure 110 is recessed toward the interior cavity of the airbag housing 100 and is also capable of resisting the impact force on the airbag housing 100 when the airbag is inflated and deployed.
The deeper the body reinforcing structure 110 is, the more effectively the strength of the airbag housing 100 can be increased; in addition, the degree of recession of the body reinforcement structure 110 is also limited by the overall size of the airbag housing 100, and the compatible space for other structural components of the roof area at the time of installation. In some embodiments, the groove depth s of the groove structure satisfies: s is more than or equal to 2mm and less than or equal to 8mm. For example, s=2 mm, s=4 mm, s=8 mm, and so on.
In one embodiment, the body reinforcing structure 110 may specifically include: and a bottom reinforcement structure formed at the bottom of the airbag housing 100. Through the bottom reinforcing structure, the bottom of the airbag housing 100 can be reinforced and protected, and the bottom of the airbag housing 100 is prevented from being damaged or greatly deformed due to the impact force of airbag inflation and deployment.
In one embodiment, the bottom reinforcement structure may specifically include at least one first rib 110a, each first rib 110a extending from one side panel of the airbag housing 100, through the bottom panel 100a of the airbag housing 100, and to the other side panel of the airbag housing 100.
Wherein two side plates of the air bag housing 100 are formed at both sides of the air bag housing 100 in the lateral direction "x", each of the first reinforcing ribs 110a extends substantially in the lateral direction "x" of the air bag housing 100.
In the case where the bottom plate 100a of the airbag housing 100 is formed as an arched bottom plate, as shown in fig. 7 and 8, the first reinforcing ribs 110a also follow the arched curvature of the bottom plate 100a, forming reinforcing ribs having an arched curvature.
The first reinforcing bead 110a may extend continuously or intermittently. In a preferred embodiment, the first reinforcing bead 110a may be continuously extended as shown in fig. 1, 4 and 7, formed as a continuous groove structure laterally covering the entire bottom plate of the airbag housing 100 and extending to the side plate, to secure high strength of the groove structure.
In other embodiments, the first reinforcing rib 110a may be intermittently extended as shown in fig. 8 to form a discontinuous groove structure in the event that interference with other structural components of the roof area or the like is to be avoided.
Further, the number of the first reinforcing ribs 110a may be set as needed. In a preferred embodiment, three first ribs 110a may be employed. The number and distribution of the first reinforcing ribs 110a are related to the overall size of the airbag housing 100, and since the inflator needs to be installed inside (away from the forward direction "y") the airbag housing 100, no reinforcing structure is provided, but the reinforcing structure is provided mainly in the direction in which the airbag inflates and deploys.
In one embodiment, the body reinforcing structure 110 may further comprise: the back reinforcement structure is formed on the back of the airbag housing 100. By the back reinforcing structure, the back of the airbag housing 100 can be reinforced and protected, and the back of the airbag housing 100 is prevented from being broken or greatly deformed due to the impact force of airbag inflation and deployment.
In one embodiment, the back reinforcement structure may specifically include: at least one second reinforcing rib 110b, each second reinforcing rib 110b extending from at least the back plate 100b of the airbag housing 100 to the bottom plate 100a of the airbag housing 100.
In addition, in the case where the airbag housing 100 is formed with the top plate 100c, each of the second reinforcing ribs 110b may extend from the top plate 100c, through the back plate 100b, to the bottom plate 100a.
Whether or not the airbag housing 100 is formed with the roof panel 100c may depend on the structural design of the roof rail region of different vehicles. For example, according to the structural design of the roof region of some vehicles, the specific structure of an airbag case 100 of an overhead airbag thereof is shown with reference to fig. 1, 2, 7 and 8, a roof panel 100c is formed on the top of the airbag case 100; at this time, the second reinforcing rib 110b extends from the top plate 100c, through the back plate 100b, and to the bottom plate 100a, and can enhance the reinforcing effect on the back region of the airbag case 100.
As another example, according to the structural design of the roof region of some vehicles, the specific structure of the airbag case 100 of the overhead airbag thereof is shown with reference to fig. 4, and the roof is not formed on the top of the airbag case 100; at this time, the second reinforcing ribs (in fig. 4, specific second reinforcing ribs are not shown) extend from the back plate 100b to the bottom plate 100a, and the reinforcing effect of the lift on the back region of the airbag housing 100 can be also achieved.
The second reinforcing rib 110b also has a similar structural principle to the first reinforcing rib 110a, for example, may be continuously or intermittently extended, the number and distribution are taken into consideration in consideration of the overall size of the airbag housing 100, and the like, and the description will not be repeated.
In some vehicle types, the airbag housing 100 shown in fig. 1, 2, 7, and 8 may be used for an overhead airbag on the passenger side, and the airbag housing 100 shown in fig. 4 may be used for an overhead airbag on the driving side, but is not limited thereto.
The respective components included in the airbag case 100, such as the bottom plate 100a, the back plate 100b, and the top plate 100c, are integrally formed in the entire airbag case 100, and are not separate components.
With continued reference to fig. 1-8, in one embodiment, the airbag housing 100 may further comprise: and a clamping structure 130 for clamping the airbag housing 100 to a roof rail region of the vehicle. The clamping structure 130 can be directly clamped with the top beam of the vehicle; alternatively, the vehicle may be connected to the roof rail of the vehicle after being snapped through the corresponding intermediate member.
The engagement structure 130 may be located on the side, top, back, etc. structural members of the airbag housing 100.
Specifically, as shown in fig. 4, the engagement structure 130 may be formed on top of the side plate of the airbag housing 100; as shown in fig. 1 and 2, the clamping structure 130 may be formed on the top plate 100c; etc.
The different positions of the clamping structure 130 are designed to adapt to the structural layout of the roof rail regions of different vehicles.
Further, in one embodiment, the airbag housing 100 may further include: mounting holes 140 for mounting the airbag housing 100 to a roof rail region of a vehicle. The mounting holes 140 may allow the airbag housing 100 to be directly mounted to the roof rail of the vehicle by means of screw connection or the like; alternatively, the airbag housing 100 may be attached to the roof rail of the vehicle after being mounted to the corresponding intermediate member through the mounting holes 140.
The mounting holes 140 may be located on the side, top, back, etc. structural members of the airbag housing 100.
Specifically, as shown in fig. 4, the mounting hole 140 may be formed at the top of the back plate 100b of the airbag housing 100; as shown in fig. 1 and 2, the mounting hole 140 may be formed at the top of the side plate of the airbag housing 100; etc.
The different location designs of the mounting holes 140 can accommodate the structural layout of the roof rail areas of different vehicles.
In some vehicle types, the airbag housing 100 shown in fig. 4 may be used for a driver-side overhead airbag, and the airbag housing 100 shown in fig. 1, 2, 7, and 8 may be used for a passenger-side overhead airbag, but is not limited thereto.
In addition, the air bag housing 100 may alternatively or simultaneously be provided with the fastening structure 130 and the mounting hole 140, depending on the structural layout of the roof rail region of the vehicle.
In summary, the airbag housing 100 according to the embodiment of the invention, because of the integral stamping forming and no need of assembly, can simplify the production process, improve the production efficiency, reduce the cost, and can increase the structural strength, and overcome the problem that the strength of the assembled/spliced housing is insufficient to support the impact force when the airbag is inflated and deployed; and the airbag housing 100 has a compact overall structure, and can effectively save the installation space of the overhead airbag. The airbag housing 100 has the body reinforcing structure 110 formed at the body portion and the edge reinforcing structure 120 formed at the edge, so that the structural strength can be further enhanced, the impact resistance can be effectively improved, and the airbag housing 100 is ensured not to be damaged or to be greatly deformed when the airbag is inflated and deployed; and the edge reinforcement structure 120 is formed as a hemming structure that is rolled along an airbag deployment path, and also conforms to the airbag deployment movement, ensuring smooth deployment of the overhead airbag, avoiding damage to the airbag due to blocking, thereby improving safety.
Embodiments of the present invention also provide an overhead airbag including an airbag housing 100 as described in any of the embodiments above. The features and principles of the airbag housing 100 described in any of the embodiments described above are applicable to overhead airbags. In the following overhead airbag embodiments, the features and principles that have been elucidated are not repeated.
Fig. 9 shows a three-dimensional structure of an overhead airbag in one embodiment, fig. 10 shows a three-dimensional structure of an overhead airbag in still another embodiment, and the overhead airbag specifically includes, in combination with fig. 1 to 10:
an airbag housing 100;
an airbag 200 accommodated in the airbag housing 100;
the gas generator 300 is accommodated in the airbag housing 100 and communicates with the airbag for inflating the airbag 200 at the time of an event such as a collision of the vehicle, so that the airbag 200 is deployed along the windshield of the vehicle and toward the driver/passenger seat, thereby protecting the driver/passenger.
The overhead airbag shown in fig. 9 is attached to, for example, a roof area on the passenger side, and the overhead airbag shown in fig. 10 is attached to, for example, a roof area on the driving side, but is not limited to this.
The overhead airbag of the embodiment of the invention adopts the integrally punched and formed airbag housing 100, so that the production process can be simplified, the production efficiency can be improved, the cost can be reduced, the structural strength can be increased, and the problem that the strength of the assembled/spliced housing is insufficient to support the impact force when the airbag is inflated and unfolded can be solved; the overhead safety airbag has compact integral structure, can effectively save the installation space, and is suitable for various types of vehicles; in addition, at least the edge reinforcing structure 120 positioned at the edge is formed on the air bag shell 100, so that the structural strength can be further enhanced, the impact resistance of the air bag shell 100 when the air bag 200 is inflated and expanded can be effectively improved, and the air bag shell 100 is ensured not to be damaged or to be greatly deformed; the edge reinforcement structure 120 is formed as a hemming structure that is rolled along the airbag deployment path, and also conforms to the deployment movement of the airbag 200, ensuring smooth deployment of the airbag 200, avoiding breakage of the airbag 200 due to blocking, and thus improving safety.
Embodiments of the present invention also provide a vehicle, the roof rail region of which is fitted with an overhead airbag as described in any of the embodiments above. The overhead airbag can be mounted in particular to the roof rail region of the vehicle by means of a direct connection or an indirect connection.
The indirect connection mode comprises the following steps: the air bag housing may be first attached to an intermediate mounting bracket and attached to the vehicle by the intermediate mounting bracket.
The overhead airbag of the vehicle adopts the integrally punched and formed airbag shell, so that the production process can be simplified, the production efficiency can be improved, the cost can be reduced, the structural strength can be increased, and the problem that the strength of the assembled/spliced shell is insufficient to support the impact force when the airbag is inflated and unfolded can be solved; the overhead safety airbag has compact integral structure, can effectively save the installation space, and is suitable for various types of vehicles; in addition, at least the edge reinforcing structure positioned at the edge is formed on the air bag shell of the overhead type air bag, so that the structural strength can be further enhanced, the impact resistance of the air bag shell is effectively improved, and the air bag shell is ensured not to be damaged or to be greatly deformed when the air bag is inflated and expanded; the edge reinforcing structure is formed into a curled edge structure which is rolled along an airbag unfolding path, and can be compliant with airbag unfolding movement, so that the overhead airbag is ensured to be unfolded smoothly, and the airbag is prevented from being damaged due to blocking, thereby improving safety.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (18)
1. An airbag housing for an overhead airbag, the airbag housing being integrally formed by stamping, comprising:
and the edge reinforcing structure is rolled up along the airbag unfolding path of the overhead airbag from the bottom edge of the airbag shell to form a hemming structure.
2. The airbag housing of claim 1, wherein the hemming structure is formed as an arcuate hemming structure.
3. The airbag housing of claim 2, wherein the rounded angle α of the hemming structure satisfies: alpha is more than or equal to 45 degrees.
4. The airbag housing of claim 2, wherein the radius d of the radius of the bead structure satisfies: d is more than or equal to 2mm and less than or equal to 12mm.
5. The airbag housing of claim 1, wherein the floor of the airbag housing is formed as an arched floor.
6. The airbag housing of claim 1, further comprising:
a body reinforcing structure formed at a body portion of the airbag housing;
the body reinforcing structure is formed as a groove structure recessed toward or away from the interior cavity of the airbag housing.
7. The airbag housing of claim 6, wherein the groove depth s of the groove structure satisfies: s is more than or equal to 2mm and less than or equal to 8mm.
8. The airbag housing of claim 6, wherein the body reinforcement structure comprises:
and the bottom reinforcing structure is formed at the bottom of the air bag shell.
9. The airbag housing of claim 8, wherein the bottom reinforcement structure comprises at least one first reinforcement rib, each first reinforcement rib extending from one side panel of the airbag housing, through a bottom panel of the airbag housing, and to another side panel of the airbag housing.
10. The airbag housing of claim 9, wherein each of the first ribs extends continuously or intermittently.
11. The airbag housing of claim 6, wherein the body reinforcement structure comprises:
and a back reinforcing structure formed on the back of the air bag housing.
12. The airbag housing of claim 11, wherein the back reinforcement structure comprises at least one second stiffener, each second stiffener extending from at least a back panel of the airbag housing to a bottom panel of the airbag housing.
13. The airbag housing of claim 12, wherein the airbag housing is formed with a top plate;
each second reinforcing rib extends from the top plate, through the back plate and to the bottom plate.
14. The airbag housing of claim 1, further comprising:
the clamping structure is used for clamping the air bag shell to a top beam area of the vehicle; and/or
And a mounting hole for mounting the airbag housing to the top beam region.
15. The airbag housing of claim 1, wherein the airbag housing is integrally stamped and formed of sheet material;
the thickness of the sheet material is between 1mm and 4 mm.
16. An airbag housing as in any of claims 1-15 for a driver-side or co-driver-side overhead airbag.
17. An overhead airbag comprising an airbag housing according to any one of claims 1 to 16.
18. A vehicle equipped with an overhead airbag according to claim 17;
the overhead airbag is fitted to the roof rail region of the vehicle in a direct connection or in an indirect connection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210655321.XA CN117246269A (en) | 2022-06-10 | 2022-06-10 | Airbag housing, overhead airbag and vehicle |
| PCT/CN2023/099107 WO2023237044A1 (en) | 2022-06-10 | 2023-06-08 | Airbag housing, roof-mounted airbag, and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210655321.XA CN117246269A (en) | 2022-06-10 | 2022-06-10 | Airbag housing, overhead airbag and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117246269A true CN117246269A (en) | 2023-12-19 |
Family
ID=89117656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210655321.XA Pending CN117246269A (en) | 2022-06-10 | 2022-06-10 | Airbag housing, overhead airbag and vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN117246269A (en) |
| WO (1) | WO2023237044A1 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3016844B1 (en) * | 2014-01-30 | 2017-05-19 | Peugeot Citroen Automobiles Sa | SUPPORT PLATE AND DEVICE FOR FIXING AN INFLATABLE CUSHION MODULE |
| DE202014003779U1 (en) * | 2014-05-07 | 2015-08-10 | Dalphimetal España S.A. | Module cover, arrangement of a module cover between a vehicle roof and a vehicle roof, gas bag module and vehicle safety system |
| CN107031556B (en) * | 2016-02-02 | 2022-03-01 | 奥托立夫开发公司 | Airbag housing and airbag module |
| CN209479620U (en) * | 2018-11-22 | 2019-10-11 | 广州汽车集团股份有限公司 | Air bag device and automobile |
| CN212921430U (en) * | 2019-06-28 | 2021-04-09 | 宁波均胜汽车安全***有限公司 | Ceiling safety airbag device |
| CN216034240U (en) * | 2021-10-18 | 2022-03-15 | 蔚来汽车科技(安徽)有限公司 | Ceiling air bag for vehicle and vehicle |
| CN217294457U (en) * | 2022-06-10 | 2022-08-26 | 采埃孚汽车科技(张家港)有限公司 | Air bag housing, overhead air bag and vehicle |
-
2022
- 2022-06-10 CN CN202210655321.XA patent/CN117246269A/en active Pending
-
2023
- 2023-06-08 WO PCT/CN2023/099107 patent/WO2023237044A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023237044A1 (en) | 2023-12-14 |
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