Safety air bag and vehicle

Abstract

The utility model relates to a safety air bag which comprises a main air bag, the main air bag is provided with a main body part and two convex hulls which are arranged on the two sides of the main body part and extend outwards from the main body part in the unfolded state, and the two convex hulls and the main body part jointly form a middle concave part. The utility model relates to an airbag comprising a main airbag having a convex hull, a recess configured to receive the head of an occupant in the event of a collision, and a side bulge formed at least partially at the outer side of the convex hull in the deployed state of the main airbag, said side bulge forming a common chamber with the convex hull, the side bumps are configured to support the convex hulls and narrow the free ends of the convex hulls inward. The utility model further relates to a vehicle comprising the safety air bag. By means of the safety air bag, the performance requirement of the safety air bag working condition in the collision event can be met through the simple design and the low cost.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and more particularly to an airbag and a vehicle including the airbag. Background Art

[0002] Modern vehicles are widely equipped with airbags as a safety measure for vehicle occupants. When a collision occurs and an impact is detected, an inflator generates gas and delivers it into the airbag, causing it to inflate and deploy. The inflated airbag effectively protects the occupants from collisions with objects within the vehicle.

[0003] Vehicle technology is advancing rapidly. Driven by the electrification and intelligent advancements in vehicles, interior design has significantly changed compared to traditional vehicles. Central control screens are increasingly being used in many new energy vehicles, such as pure electric and hybrid vehicles. In a collision, especially an oblique collision, such as an offset collision, the occupant's head could slip out of the airbag and collide with the central control screen. Furthermore, in an oblique collision, the occupant's head could slide toward the A-pillar. This could result in neck or head injuries due to excessive head movement or rotation.

[0004] In order to solve this problem, in the prior art, a recessed portion is usually provided in the middle area of ​​the airbag of the airbag to accommodate the occupant's head, thereby preventing the occupant's head from sliding or rotating.

[0005] Chinese patent application CN109476272A discloses an airbag comprising an airbag. In the deployed state, the airbag has two lobes extending forward (or toward the vehicle occupant, or rearward in the vehicle coordinate system) from the front surface of the airbag in the ejection direction. The opposing inner surfaces of the two lobes are defined by a plurality of flexible tension elements. In the event of a vehicle collision, the occupant's head enters between the two lobes, trapping at least a substantial portion of the head between the two lobes. This reduces the rotational speed of the occupant's head and thereby mitigates head injuries. However, this patent application employs conventional flexible tension elements to define the inner surfaces of the lobes, which still presents certain complexities in terms of structural design and manufacturing. Utility Model Content

[0006] The present disclosure aims to provide an airbag that effectively prevents an occupant from sliding out of the airbag's protective zone during a collision, particularly an offset or oblique collision, and reduces injuries caused by the occupant's head rotating about the neck. Furthermore, the airbag achieves the performance requirements of airbag operation during a collision, particularly an offset or oblique collision, with a relatively simple design and at a low cost.

[0007] Another object of the present disclosure is to provide a vehicle, in particular a passenger car, comprising the airbag, such as a vehicle driven solely by an internal combustion engine, a hybrid vehicle, or a pure electric vehicle.

[0008] A first aspect of the present disclosure relates to an airbag, which includes a main airbag, which in an expanded state has a main body portion and two convex bulges extending outward from the main body portion on both sides of the main body portion, the two convex bulges and the main body portion together forming a middle recessed portion, and the recessed portion is configured to receive the head of an occupant in a collision event, and is characterized in that the airbag also includes a side bulge formed at least partially on the outer side surface of the bulge in the expanded state of the main airbag, wherein the side bulge and the bulge constitute a common chamber, and wherein the side bulge is configured to support the bulge and narrow the free end of the bulge inwardly.

[0009] In an offset or oblique collision, the occupant's head contacts the airbag in an oblique direction. Due to inertia, the occupant's head may rotate along the neck and in the oblique direction. This slippage and rotation can increase the severity of injury to the occupant. Therefore, the central recess formed by the convex bump and the main body can limit the slippage of the occupant's head along the width of the vehicle, preventing the occupant's head from colliding with protruding objects in the vehicle, especially the center console, or with the vehicle's front side components, especially the A-pillars, effectively restraining the occupant. In a collision event involving a vehicle equipped with an airbag with a side bump according to the present disclosure, especially in an offset or oblique collision, the side bump can effectively support the bump and narrow the free end of the bump inward, thereby making the bump "stand upright" and achieving a better enveloping effect for the occupant's head. More specifically, the side bulges can provide a longer arc length on the outside of the main airbag. The difference in arc length between this outer arc length and the inner arc length of the inner side of the middle recess formed by the two bulges results in a larger difference in the internal stress of the airbag when it is filled with gas. Therefore, the bulge of the airbag tends to stand upright toward the side of the occupant's head, thereby well accommodating the occupant's head in the recess. In addition, by adopting such side bulges, the composite protrusion structure formed by the side bulges and the bulges can have a larger volume and an increased thickness in the width direction of the vehicle body, thereby improving the protection effect during side impacts. Therefore, the airbag according to the present disclosure can limit or even prevent the occupant's head from slipping and rotating along the width direction of the vehicle during an oblique collision, thereby avoiding direct collision of the occupant's head with protrusions and other hard objects in the vehicle, playing a good restraining and buffering role for the occupant, and at the same time can effectively reduce neck injuries caused by neck axis spin.

[0010] In some embodiments, the side bulges may be formed at the root region of the convex bulge, thereby achieving a better supporting effect on the convex bulge through the side bulges.

[0011] In some embodiments, the side bulge may extend over at least a portion of the outer circumference of the convex bulge.

[0012] In some embodiments, the side bulge may extend continuously along the circumferential direction on the outer periphery of the outer side of the convex bulge, thereby forming a continuous side bulge.

[0013] In some embodiments, the side bulge may extend in sections along the circumferential direction on the outer periphery of the outer side of the convex bulge, thereby forming a plurality of separate sub-side bulges.

[0014] In some embodiments, the airbag may include a side panel and a side patch, the side panel at least partially forming the main body portion, and the side patch at least partially forming the bulge, wherein the side bulge is formed by the side panel and the side patch together.

[0015] In some embodiments, the side panels and the side patches may be constructed separately from each other, and the side bulges are formed by connecting the separate side panels and side patches.

[0016] In some embodiments, a protruding structure may be provided on the side of the side panel adjacent to the bulge, and a matching protruding structure corresponding to the protruding structure may be provided on the side of the side patch adjacent to the main part, and the side bulge is formed by connecting the protruding structure of the side panel and the matching protruding structure of the side patch.

[0017] In some embodiments, the protruding structure of the side panel can be connected at its outer edge region to the outer edge region of the mating protruding structure of the side patch.

[0018] In some embodiments, the contours of the outer edges of the protruding structures of the side panels and the outer edges of the mating protruding structures of the side patches may be at least partially contoured with arcuate segments and / or with straight segments.

[0019] In some embodiments, the contour of the outer edge of the protruding structure of the side panel and the contour of the outer edge of the mating protruding structure of the side patch may be configured to be trapezoidal.

[0020] In some embodiments, the length of the outline of the outer edge of the protruding structure of the side panel and the outline of the outer edge of the mating protruding structure of the side patch may be the same.

[0021] In some embodiments, the side panels and the side patches may be constructed as a continuous, unitary piece.

[0022] In some embodiments, a protruding structure may be provided on the side of the side panel adjacent to the bulge, and a matching protruding structure corresponding to the protruding structure may be provided on the side of the side patch adjacent to the main part, wherein the protruding structure of the side panel and the matching protruding structure of the side patch form an integral structure at least in part of the section, and the side bulge is formed by connecting the protruding structure of the side panel and the matching protruding structure of the side patch outside the integral structure.

[0023] In some embodiments, the protruding structure of the side panel can be connected at its outer edge region outside the integral structure to the outer edge region outside the integral structure of the mating protruding structure of the side patch.

[0024] In some embodiments, the contours of the outer edges of the protruding structures of the side panels and the outer edges of the mating protruding structures of the side patches outside the integral structure may be at least partially arcuate and / or linear.

[0025] In some embodiments, the protruding structure of the side panel and the mating protruding structure of the side patch may form a unitary structure at the intermediate region.

[0026] In some embodiments, a constriction structure comprising a seam may be provided at or near the bottom of the convex bump facing the inside of the recessed portion. The constriction structure is configured to reduce the length of the airbag material in the inner region of the recessed portion via the seam, thereby reducing the arc length of the inner region of the recessed portion. Providing a constriction structure located inwardly in addition to the outer side bulges can provide a greater arc length difference than providing only the side bulges, thereby further enhancing the tendency of the airbag bulge to rise toward the occupant's head, thereby better accommodating the occupant's head in the recessed portion.

[0027] A second aspect of the present disclosure relates to a vehicle, which may include an airbag according to any one of the embodiments of the present disclosure.

[0028] In some embodiments, the vehicle may include a central control screen and an A-pillar mounted on the instrument panel, and the airbag is mounted in the instrument panel. The airbag is configured to be activated in the event of a vehicle collision to prevent an occupant's head from colliding with the central control screen and / or sliding toward the A-pillar. In particular, the airbag according to the present disclosure can cope with operating conditions with a central control screen in close proximity. The main airbag can be narrower in an area corresponding to the large screen position of the central control screen to reduce interference with the central control screen, while being wider in the contact area with the occupant's head and having a composite raised structure to prevent the occupant's head from colliding with the central control screen.

[0029] The technical features mentioned above, the technical features described below, and the technical features shown individually in the accompanying drawings may be combined arbitrarily, as long as the combined technical features do not conflict with each other. All possible feature combinations are technical contents explicitly described in this document. Any of the multiple sub-features included in the same statement can be applied independently and does not necessarily have to be applied in conjunction with other sub-features. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present disclosure will be further described below with reference to the accompanying schematic drawings with the aid of exemplary embodiments, wherein:

[0031] Figure 1 FIG. 1 is a schematic diagram of an airbag according to an embodiment of the present disclosure in a deployed state as viewed from the side.

[0032] Figure 2 yes Figure 1 Schematic diagram of an airbag when viewed from above.

[0033] Figure 3 yes Figure 1 Diagram of the airbag when viewed forward from behind the occupant.

[0034] Figure 4 yes Figure 1 Schematic isometric view of an airbag in the inflated state.

[0035] Figure 5a 4 is a schematic cross-sectional structural diagram of an airbag according to a first embodiment of the present disclosure.

[0036] Figure 5b is a plan view of a side panel of an airbag according to a first embodiment of the present disclosure.

[0037] Figure 5c is a plan view of a side patch of an airbag according to a first embodiment of the present disclosure.

[0038] Figure 5d Schematic diagram of the connection position of the side patch and the side panel of the airbag according to the first embodiment of the present disclosure.

[0039] Figure 5e is a plan view of a main panel of an airbag according to a first embodiment of the present disclosure.

[0040] Figure 6 is a schematic side view of the airbag 1 according to the first embodiment of the present disclosure.

[0041] Figure 7a is a plan view of a side panel of an airbag according to a second embodiment of the present disclosure.

[0042] Figure 7b is a plan view of a side patch of an airbag according to a second embodiment of the present disclosure.

[0043] Figure 7c Schematic diagram of the connection position of the side patch and the side panel of the airbag according to the second embodiment of the present disclosure.

[0044] Figure 8a A schematic cross-sectional structural diagram of an airbag according to a third embodiment of the present disclosure is shown.

[0045] Figure 8b is a plan view of a main panel of an airbag according to a third embodiment of the present disclosure.

[0046] Figure 9a 4 is a plan view of an integrated side panel-side patch composite structure of an airbag according to a fourth embodiment of the present disclosure.

[0047] Figure 9b It is a schematic diagram of the connection position of the side patch and the side panel in the integrated side panel-side patch composite structure of the airbag according to the fourth embodiment of the present disclosure. DETAILED DESCRIPTION

[0048] Figure 1 FIG1 is a schematic diagram of an airbag 1 according to an embodiment of the present disclosure, viewed from the side, in a deployed state. Figure 2 yes Figure 1 Schematic diagram of the airbag 1 when viewed from above. Figure 3 yes Figure 1 Schematic diagram of the airbag 1 when viewed forward from behind the occupant. Figure 4 yes Figure 1 A schematic isometric view of the airbag 1 when it is filled with gas. Figures 1 to 4 The principle of the airbag 1 according to this embodiment will be described.

[0049] In an exemplary embodiment, the airbag 1 may be a frontal airbag, more specifically, a passenger airbag. The airbag 1 may be installed in the vehicle's instrument panel 2. Furthermore, a central control screen, particularly a floating central control screen, may be installed on the vehicle's instrument panel 2, extending from the center console position of the instrument panel 2 to the passenger side. The vehicle may be a passenger car or a truck, particularly an electric vehicle, such as a pure electric vehicle or a hybrid electric vehicle.

[0050] If combined Figures 1 to 2As can be clearly seen, an airbag 1 according to one embodiment of the present disclosure includes a main airbag 10. In a deployed state, the main airbag 10 may include a main portion 101 and two convex bumps 102 extending outward from the main portion 101 on either side. The two convex bumps 102 and the main portion 101 may together form a central recessed portion 104. The recessed portion 104 may be configured to receive an occupant's head 13 in the event of a collision.

[0051] In addition to the main body portion 101 and the two convex bumps 102, the airbag 1 may also include a side bulge 103 formed at least partially on the outer side of the convex bump 102 when the main airbag 10 is deployed. The side bulge 103 and the convex bump 102 form a common chamber. The side bulge 103 is configured to support the convex bump 102 and to narrow the free end of the convex bump 102 inwardly. In the event of a vehicle collision, the inflator 100 can be activated to inflate the main airbag 10. The chamber of the main airbag 10 includes the chamber formed by the main body portion 101, the side bulge 103, and the convex bump 102. Therefore, the airbag 1 according to the present disclosure has only a single chamber, without a second or additional separate chamber. As described above, in the event of a collision, particularly an offset collision, the occupant's head 13 can be received in the recess 104 to prevent it from sliding out of the airbag 1 or rotating. The composite protrusion structure formed by the convex bump 102 and the side bulge 103 has a larger volume and an increased thickness in the width direction of the vehicle body, thereby improving the protection effect during side impact.

[0052] In the present disclosure, side bumps 103 are formed on each of the two convex bumps 102, namely, the left side bump 103 and the right side bump 103. In this embodiment, the two convex bumps 102 and the two side bumps 103 can be configured to be mirror-symmetrical about the central axis of the main airbag 10. For simplicity, the following description focuses on the structure of only one of the two convex bumps 102 and one of the two side bumps 103. Of course, in other embodiments, the left and right convex bumps 102 and the side bumps 103 can also be configured differently as needed.

[0053] As from Figure 1 、 Figure 2 and Figure 4 As can be seen in the figure, the side bulge 103 can be formed at the root region of the convex hump 102. Here, the "root region" refers to the transition area from the main portion 101 to the convex hump 102, or the connecting area between the main portion 101 and the convex hump 102. By forming the side bulge 103 at the root region of the convex hump 102, the side bulge 103 can provide a good foundation for the convex hump 102, thereby providing good support for the convex hump 102, allowing the convex hump 102 to stand stably.

[0054] In addition, it can be seen that the side bulge 103 extends continuously along the circumferential direction of the convex bulge 102 on the outer periphery of the outer side of the convex bulge 102. Thus, a continuous side bulge 103 can be formed on the outer side of each convex bulge 102. Figure 1 The continuously extending side bulge 103 can be seen in the figure, wherein the dotted line schematically outlines the bottom contour of the side bulge 103, i.e. the contour of the connecting portion between the side bulge 103 and the convex bulge 102, while the solid line between the two dotted lines outlines the "peak" portion of the side bulge 103. Therefore, the appearance of the side bulge 103 is similar to a peak or a hill. This continuous side bulge structure can also be Figure 4 It is clearly seen in Figure 4 Also visible are the side panels 203 and the side patches 205, which will be described in detail below.

[0055] In addition to the single continuous side bump 103 shown for each convex bump 102, in other embodiments, multiple sub-side bumps may be provided. These multiple sub-side bumps may be formed by extending the side bump 103 in sections along the circumferential direction on the outer periphery of the convex bump 102. In practice, a single continuous side bump 103 or multiple separate sub-side bumps may be provided as needed.

[0056] Combine Figures 2 to 4 It can be seen that the composite protrusion structure formed by the convex bump 102 and the side bulge 103 not only protrudes in the longitudinal direction due to the convex bump 102, but also protrudes in the transverse direction due to the side bulge 103. The longitudinal protrusion forms a recessed portion 104 for accommodating the occupant's head 13. The transverse protrusion not only increases the lateral thickness of the airbag, thereby increasing the cushioning distance during an oblique collision, but also supports the convex bump 102 and causes the free end of the convex bump 102 to narrow inward, causing the convex bump 102 to tend to stand upright toward the occupant's head, thereby enhancing the stability of the convex bump 102 and further improving the occupant's head accommodation effect of the recessed portion 104 formed by the convex bump 102.

[0057] In order to obtain a better "standing" effect of the convex hull 102, as shown in FIG. Figures 1 to 4As shown, in addition to the side bulge 103, a contraction structure 202 is also provided on the inner side of the convex bulge 102. As shown, the contraction structure 202 is provided at the bottom of the inner side of the convex bulge 102 facing the recessed portion 104. In other embodiments, the contraction structure 202 may also be provided near the bottom of the inner side of the convex bulge 102 facing the recessed portion 104. The contraction structure 202 is formed by a seam. The contraction structure 202 is configured to reduce the length of the airbag material in the inner area of ​​the recessed portion 104 through the seam to reduce the arc length of the inner area of ​​the recessed portion 104. Here, the seam can be achieved by sewing, gluing, welding, etc. the airbag material together. To this end, the airbag material can be partially folded together and then joined together.

[0058] Next, the specific formation method of the side bulge 103 is mainly described.

[0059] Figure 5a 1 is a schematic cross-sectional structural diagram of the airbag 1 according to the first embodiment of the present disclosure. Figure 5b is a plan view of the side panel 203 of the airbag 1 according to the first embodiment of the present disclosure. Figure 5c is a plan view of the side patch 205 of the airbag 1 according to the first embodiment of the present disclosure. Figure 5d 2 is a schematic diagram of the connection position between the side patch 205 and the side panel 203 of the airbag 1 according to the first embodiment of the present disclosure. Figure 5e 1 is a plan view of a main panel 201 of an airbag 1 according to a first embodiment of the present disclosure. In the first embodiment, not only the side bulge 103 but also the contraction structure 202 are present.

[0060] If combined Figures 5a to 5d As can be seen, the airbag 1 includes a side panel 203 and a side patch 205, wherein the side panel 203 at least partially forms the main body portion 101, and the side patch 205 at least partially forms the bulge 102. In the present disclosure, the side bulge 103 can be formed by the side panel 203 and the side patch 205 together. Here, "formed together" means that at least a portion of the side panel 203 and at least a portion of the side patch 205 together form the side bulge 103. Figures 5a to 5dIn the illustrated first embodiment, the side panels 203 and the side patches 205 are constructed separately from each other. The side bulge 103 is formed by connecting the side panels 203 and the side patches 205 that are separated from each other. The connection of the side panels 203 and the side patches 205, especially the connection at the corresponding marginal area, can form a connecting structure 207, wherein, this connecting structure 207 can be realized by conceivable connecting modes such as sewing, bonding, etc., therefore according to the specific connecting mode, can also be called sewing structure or bonding structure etc. The splicing of the side panels 203 and the side patches 205 can take place at the connecting structure 207 place. In the present disclosure, the connection is realized by sewing the side panels 203 and the side patches 205 together mutually. Of course, other connecting means, such as bonding, welding etc., can also be considered. A protruding structure 203a is provided on the side of the side panel 203 adjacent to the bulge 102, while a mating protruding structure 205a corresponding to the protruding structure 203a is provided on the side of the side patch 205 adjacent to the main body 101. The side bulge 103 is formed by connecting the protruding structure 203a of the side panel 203 and the mating protruding structure 205a of the side patch 205. Thus, when the main airbag 10 is deployed, the protruding structure 203a of the side panel 203 and the mating protruding structure 205a of the side patch 205 together form the side bulge 103.

[0061] The protruding structure 203a of the side panel 203 is connected with the outer edge area of ​​the matching protruding structure 205a of the side patch 205 at its outer edge area. Figure 5d In the figure, we can see the connecting line 204 of the outer edge area of ​​the protruding structure 203a of the side panel 203 and the outer edge area of ​​the matching protruding structure 205a of the side patch 205. In the case of sewing, the connecting line 204 can also be considered as a sewing line. Figure 5a The connection structure of the side panel 203 and the side patch 205 can also be seen in the figure. In order to ensure the appearance of the connection, the outer edge area of ​​the protruding structure 203a of the side panel 203 and the outer edge area of ​​the matching protruding structure 205a of the side patch 205 are slightly folded inwards and then connected internally. Figure 5a This inward fold is slightly exaggerated.

[0062] exist Figures 5b to 5dAs can be clearly seen in the figure, the outer edge 203b of the protruding structure 203a of the side panel 203 and the outer edge 205b of the mating protruding structure 205a of the side patch 205 are configured to be arcuate. Of course, in other embodiments, the outer edge 203b of the protruding structure 203a of the side panel 203 and the outer edge 205b of the mating protruding structure 205a of the side patch 205 may also have only straight segments, so that the outlines are configured to be zigzag-shaped. One zigzag-shaped embodiment, namely the trapezoidal embodiment, will be described below. In an alternative embodiment, the outer edge 203b of the protruding structure 203a of the side panel 203 and the outer edge 205b of the mating protruding structure 205a of the side patch 205 may also have partially arcuate segments and partially straight segments.

[0063] To achieve a good fit, Figures 5b to 5d As shown, the arc lengths of the outline of the outer edge 203b of the protruding structure 203a of the side panel 203 and the outline of the outer edge 205b of the mating protruding structure 205a of the side patch 205 are the same.

[0064] exist Figure 5e 1 shows a main sheet 201 that forms a portion of the main body 101 and a portion of the convex bulge 102. This main sheet 201 is provided with main sheet protrusions 201a that protrude toward both sides. One of these main sheet protrusions 201a forms a portion of the convex bulge 102. A connecting line 201b for the constriction structure 202, shown as a dotted line, can be seen in the transition region from the main sheet protrusion 201a to the main body of the main sheet.

[0065] Figure 6 A schematic side view of an airbag 1 according to a first embodiment of the present disclosure is shown. A left side panel 203 and a left side patch 205 are visible. A connecting structure 207 is formed at the connection between the side panel 203 and the side patch 205. The connecting structure 207 may be located at the aforementioned "peak" of the side bulge 103. As described above, this connection is created by connecting the outer edge region of the protruding structure 203a of the side panel 203 to the outer edge region of the mating protruding structure 205a of the side patch 205.

[0066] Next, a design of an airbag 1 according to a second embodiment of the present disclosure will be described. Figure 7a is a plan view of a side panel 203 of an airbag 1 according to a second embodiment of the present disclosure. Figure 7b is a plan view of a side patch 205 of an airbag 1 according to a second embodiment of the present disclosure. Figure 7c 2 is a schematic diagram of the connection position between the side patch 205 and the side panel 203 of the airbag 1 according to the second embodiment of the present disclosure.

[0067] The airbag 1 according to the second embodiment of the present disclosure is substantially the same as the first embodiment in terms of structural design, except that the contours of the outer edges 203b of the protruding structures 203a of the side panels 203 and the contours of the outer edges 205b of the mating protruding structures 205a of the side patches 205 are substantially trapezoidal in shape. Figures 7a to 7c In other words, in the second embodiment, the contour of the corresponding outer edge has a plurality of straight line segments, thereby forming a broken line shape. The broken line shape can be a trapezoid as shown. In other embodiments, the broken line shape can also be other forms of broken line shapes, such as a rectangle, a pentagon, a hexagon, etc. In addition, the corresponding connecting line 204 is also basically configured as a broken line shape corresponding to the contour of the corresponding outer edge. For other structural designs, reference can be made to the first embodiment. Figures 5a to 5e Description.

[0068] The above describes a combined design scheme having both the side bulge 103 and the contraction structure 202. In some embodiments, only the side bulge 103 may be present. The third embodiment having only the side bulge 103 will be described below.

[0069] Figure 8a A schematic cross-sectional structural diagram of an airbag 1 according to a third embodiment of the present disclosure is shown. Figure 8b 1 is a plan view of the main panel 201 of the airbag 1 according to the third embodiment of the present disclosure. In this third embodiment, there is only the side bulge 103 on the outside, and there is no contraction structure 202 on the inside of the bulge 102 or in the concave portion 104. Figure 8a and Figure 8b The schematic marking of the contraction structure 202 is not visible. Figure 8a As shown, only the outer side bulge 103 can provide good support for the convex hump 102 and enable the convex hump 102 to "stand upright".

[0070] In addition to the separate or split design, it is also possible to envision an integrated design of the side panels 203 and side patches 205. Figure 9a and Figure 9b Describe the one-piece design.

[0071] Figure 9a 4 is a plan view of an integrated side panel-side patch composite structure of an airbag 1 according to a fourth embodiment of the present disclosure. Figure 9b Schematic diagram of the connection position of the side patch 205 and the side panel 203 in the integrated side panel-side patch composite structure of the airbag 1 according to the fourth embodiment of the present disclosure.

[0072] As shown, the side panel 203 and the side patch 205 are constructed as a continuous, integral sheet. Similarly, a protruding structure 203a is provided on the side of the side panel 203 adjacent to the convex bulge 102, and a mating protruding structure 205a corresponding to the protruding structure 203a is provided on the side of the side patch 205 adjacent to the main body portion 101. The protruding structure 203a of the side panel 203 and the mating protruding structure 205a of the side patch 205 are shown here as follows. Figure 9a and Figure 9b The middle region is shown as forming an integral structure 206. In other embodiments, the protruding structure 203a of the side panel 203 and the mating protruding structure 205a of the side patch 205 may also form an integral structure 206 in other regions other than the middle region, such as the left region or the right region.

[0073] The side bulge 103 is formed by connecting the protruding structure 203a of the side panel 203 and the mating protruding structure 205a of the side patch 205 outside the integral structure 206. Figure 9b As shown, the protruding structure 203a of the side panel 203 can be connected with the outer edge area of ​​the matching protruding structure 205a of the side patch 205 outside the integral structure 206 at its outer edge area outside the integral structure 206. Similarly, the connection can be a sewing connection or other conceivable connection methods, such as bonding. Figure 9a and Figure 9b As can be clearly seen in the figure, the contours of the outer edges of the protruding structures 203a of the side panels 203 outside the integral structure 206 and the contours of the outer edges of the mating protruding structures 205a of the side patches 205 outside the integral structure 206 have arcuate sections. Of course, in other embodiments, it is also conceivable that the contours have straight line sections.

[0074] In the present disclosure, the outer side bumps 103, together with the optional inner constriction structure 202, form a curved structure with unequal arc lengths, allowing the bumps 102 to stand upright and impart a certain degree of rigidity. The greater the difference between the outer and inner arc lengths formed by the outer side bumps 103, the smaller the angle of the bump 102 (the angle between the plane of the main plate 201 and the plane of symmetry of the bump 102). In offset collision conditions, the "upright" bumps 102 effectively prevent the occupant's head 13 from sliding out of the airbag's protective zone and reduce the tendency of the occupant's head 13 to rotate about the neck axis.

[0075] The airbag 1 of the present invention innovatively features a side bulge 103 formed on the outer side of the bulge 102, forming a common cavity with the bulge 102. This significantly reduces the time and processing difficulty required for material connection while achieving excellent bulge support and angled collision protection. Consequently, compared to conventional airbags, this improves material cost, connection process and cost, design complexity, and functional integrity, robustness, and performance. Furthermore, the performance requirements of the airbag 1 for angled collision conditions can be achieved at a lower cost and with a simpler design. Furthermore, the size, angle, and thickness of the bulge 102 of the airbag 1 can be adjusted to suit different regulations and customer needs by adjusting the size of the side panels 203 and side patches 205, the connection design, and the dimensions of the optional retractable structure 202.

[0076] It should be noted that the terms used herein are for the purpose of describing specific aspects only and are not intended to limit the disclosure. As used herein, the singular forms "a" and "the one" shall include the plural forms unless the context clearly indicates otherwise. It will be understood that the terms "include" and "comprise" and other similar terms, when used in the application documents, specify the presence of the stated operations, elements and / or parts, and do not exclude the presence or addition of one or more other operations, elements, parts and / or combinations thereof. As used herein, the term "and / or" includes all arbitrary combinations of one or more related enumerated items. In the description of the drawings, similar reference numerals always represent similar elements.

[0077] The thickness of the elements in the accompanying drawings can be exaggerated for the sake of clarity. It will also be understood that if an element is referred to as being on, coupled to, or connected to another element, then the element can be formed directly on, coupled to, or connected to the other element, or one or more intervening elements can be present between them. On the contrary, if the expressions "directly on...", "directly coupled to...", and "directly connected to..." are used herein, then there is no intervening element. Other words used to illustrate the relationship between elements should be interpreted similarly, such as "between..." and "directly between...", "attached to," and "directly attached to," "adjacent to," and "directly adjacent to," etc.

[0078] Terms such as "top," "bottom," "above," "below," "upper," "below," etc., are used herein to describe the relationship of one element, layer, or region to another element, layer, or region as illustrated in the figures. It will be understood that these terms are intended to encompass orientations of the device in addition to the orientation depicted in the figures.

[0079] It will be understood that although the terms "first," "second," and the like may be used herein to describe different elements, these elements should not be limited by these terms. These terms are merely used to distinguish one element from another. Thus, a first element may be referred to as a second element without departing from the teachings of the present disclosure.

[0080] It is also contemplated that all exemplary embodiments disclosed herein may be arbitrarily combined with one another. Furthermore, all individual technical features in this application may be arbitrarily combined with one another, as long as the combined technical features are not mutually contradictory. All technically feasible feature combinations are considered technical content described in this application.

[0081] Finally, it should be pointed out that the above embodiments are only used to understand the present disclosure and do not limit the scope of protection of the present disclosure. For those skilled in the art, modifications can be made based on the above embodiments, and these modifications do not depart from the scope of protection of the present disclosure.

Claims

1. An airbag, comprising a main airbag (10), wherein the main airbag has a main body portion (101) and two convex hulls (102) extending outwardly from the main body portion on both sides of the main body portion in an expanded state, wherein the two convex hulls and the main body portion together form a recessed portion (104) in the middle, wherein the recessed portion is configured to receive an occupant's head (13) in a collision event, and wherein: The airbag further comprises a side bulge (103) formed at least partially on the outer side surface of the bulge when the main airbag is in the deployed state, wherein the side bulge and the bulge form a common chamber, wherein the side bulge is configured to support the bulge and narrow the free end of the bulge inwardly.

2. The airbag according to claim 1, characterized in that The side bulge is formed at the root area of ​​the convex bulge.

3. The airbag according to claim 1, characterized in that: The side bulge extends over at least a portion of the outer circumference of the convex bulge.

4. The airbag according to claim 3, characterized in that: The side bulge extends continuously along the circumferential direction on the outer periphery of the outer side of the convex bulge, thereby forming a continuous side bulge.

5. The airbag according to claim 3, characterized in that: The side bulge extends in sections along the circumferential direction on the outer periphery of the outer side of the convex bulge, thereby forming a plurality of separated sub-side bulges.

6. The airbag according to claim 1, characterized in that The airbag comprises a side panel (203) and a side patch (205), wherein the side panel at least partially forms a main body portion, and the side patch at least partially forms a bulge, wherein the side bulge is formed by the side panel and the side patch together.

7. The airbag according to claim 6, characterized in that: The side panels and the side patches are constructed separately from each other, and the side bulges are formed by connecting the side panels and the side patches that are separate from each other.

8. The airbag according to claim 7, characterized in that: A protruding structure (203a) is provided on the side of the side piece adjacent to the bulge, and a matching protruding structure (205a) corresponding to the protruding structure is provided on the side of the side patch adjacent to the main part. The side bulge is formed by connecting the protruding structure of the side piece and the matching protruding structure of the side patch.

9. The airbag according to claim 8, characterized in that The protruding structure of the side panel can be connected at its outer edge region to the outer edge region of the mating protruding structure of the side patch.

10. The airbag according to claim 8, characterized in that The contour of the outer edge (203b) of the protruding structure of the side panel and the contour of the outer edge (205b) of the mating protruding structure of the side patch are at least partially provided with arc segments and / or with straight segments.

11. The airbag according to claim 8, characterized in that The contours of the outer edges of the protruding structures of the side panels and the outer edges of the mating protruding structures of the side patches are configured to be trapezoidal.

12. The airbag according to claim 10, characterized in that: The outline of the outer edge of the protruding structure of the side panel and the outline of the outer edge of the mating protruding structure of the side patch are the same length.

13. The airbag according to claim 6, characterized in that The side panels and the side patches are constructed as a continuous, unitary sheet.

14. The airbag according to claim 13, characterized in that: A protruding structure is provided on the side of the side piece adjacent to the bulge, and a matching protruding structure corresponding to the protruding structure is provided on the side of the side patch adjacent to the main part, wherein the protruding structure of the side piece and the matching protruding structure of the side patch form an integral structure (206) at least in a partial section, and the side bulge is formed by connecting the protruding structure of the side piece and the matching protruding structure of the side patch outside the integral structure.

15. The airbag according to claim 14, characterized in that The protruding structure of the side panel can be connected with the outer edge region outside the integral structure of the mating protruding structure of the side patch at its outer edge region outside the integral structure.

16. The airbag according to claim 14, characterized in that The contours of the outer edges of the protruding structures of the side panels outside the integral structure and the contours of the outer edges of the mating protruding structures of the side patches outside the integral structure are at least partially provided with arcuate sections and / or with straight sections.

17. The airbag according to claim 14, characterized in that The protruding structure of the side panel and the mating protruding structure of the side patch form a unitary structure at the intermediate region.

18. The airbag according to claim 1, characterized in that A contraction structure (202) consisting of a seam is provided at or near the bottom of the convex bulge facing the inner side of the concave portion, and the contraction structure is configured to reduce the length of the air bag material in the inner area of ​​the concave portion through the seam to reduce the arc length of the inner area of ​​the concave portion.

19. A vehicle comprising an airbag according to any one of claims 1 to 18.

20. The vehicle according to claim 19, characterized in that The vehicle comprises a central control screen and an A-pillar arranged on a dashboard (2), the airbag being arranged in the dashboard and configured to be activated in the event of a vehicle collision to prevent an occupant's head from colliding with the central control screen and / or sliding toward the A-pillar.

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