Air curtain device and vehicle

Abstract

The utility model discloses an air curtain device and a vehicle, and relates to the technical field of safety air curtains. The air curtain device comprises an installation part, a wrapping part and an air curtain module, the installation part is used for being installed on a vehicle body of the vehicle, and the wrapping part is provided with a first end, a second end and a combination part located between the first end and the second end, the combination part is connected with the installation part and the air curtain module, and the first end is configured to be connected to the second end so that the wrapping part can wrap the rolled and / or folded air curtain module. The air curtain device provided by the utility model is simple and rapid in assembly process and stable and reliable in package shape.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of safety air curtain, specifically, relates to an air curtain device and vehicle. BACKGROUND

[0002] In order to promote the passive safety protection ability, part vehicle is configured with side protection air curtain. The air curtain in storage state is wrapped and stored between roof longitudinal beam and ceiling by wrapping assembly, after being excited because of vehicle collision etc., the air curtain is inflated by gas generator and is away from roof longitudinal beam and is unfolded between the side structure of vehicle and occupant.

[0003] The wrapping assembly on the market usually includes mounting lug and wrapping piece, the mounting lug is fixed on the roof longitudinal beam, the fixed end of the wrapping piece is connected with the air curtain and the mounting lug as an integral structure, and the free end is connected with the mounting lug after winding the air curtain along the outer periphery of the air curtain, so as to realize wrapping of the air curtain.

[0004] In order to realize the constraint of the free end of the wrapping piece, the mounting lug is provided with a complex matching structure, so that the connection process of the free end of the wrapping piece and the mounting lug is complicated, time-consuming and laborious. And the complex matching structure is easy to fail, and there is the problem of unstable wrapping. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an air curtain device, which has the characteristics of simple and fast assembly process and stable and reliable wrapping.

[0006] Another purpose of the utility model is to provide a vehicle, which has the characteristics of stable and reliable protection performance.

[0007] Embodiments of the utility model provide a technical scheme:

[0008] An air curtain device, comprising a mounting piece, a wrapping piece and an air curtain module, the mounting piece is used for mounting to the vehicle body, the wrapping piece has opposite first end and second end, and the combination part between the first end and the second end;

[0009] The combination part is connected with the mounting piece and the air curtain module respectively, the first end is configured to be connected to the second end, so that the wrapping piece wraps the air curtain module which is rolled up and / or folded.

[0010] In the optional implementation, the air curtain module is on the side of the wrapping piece away from the mounting piece, and the wrapping piece is curled in the direction away from the mounting piece to wrap the air curtain module.

[0011] In the optional implementation, the wrapping piece further has a first weakened tear line, and the first weakened tear line is between the combination part and the first end.

[0012] In an optional embodiment, when the wrapping piece is flattened, the distance between the joining portion and the first end is greater than the distance between the joining portion and the second end.

[0013] In an optional embodiment, the air curtain device further includes a connecting member, and when the wrapping member wraps the air curtain module, the connecting member connects the first end and the second end and fixes them to the vehicle body.

[0014] In an optional embodiment, the first end has a first through hole, the second end has a second through hole, and the connecting member passes through the first through hole and the second through hole and is connected to the vehicle body.

[0015] In an optional embodiment, the wrapping piece further has a first weakened tear line, and the first weakened tear line is located between the joint and the first through hole.

[0016] In an optional embodiment, when the wrapping piece is flattened, the distance from the first through hole to the end edge of the first end is greater than the distance from the second through hole to the end edge of the second end.

[0017] In an optional embodiment, the wrapping piece further has a second weakened tear line located between the second through hole and the end edge of the second end, one end of the second weakened tear line points to the second through hole, and the other end points to the end edge of the second end.

[0018] In an optional embodiment, when the wrapping piece is flattened, the distance from the first through hole to the joining portion is greater than the distance from the second through hole to the joining portion.

[0019] In an optional embodiment, one end of the mounting member is connected to the coupling portion, and the other opposite end has a mounting hole;

[0020] The air curtain device further includes a fixing member, which is used to pass through the mounting hole and connect with the vehicle body so as to mount the fixing member to the vehicle body.

[0021] In an optional embodiment, there are multiple mounting members and multiple wrapping members, and multiple mounting members are combined one by one to form multiple wrapping components, and the multiple wrapping components are arranged in sequence and spaced apart on the air curtain module.

[0022] The embodiment of the utility model provides a vehicle, including car body and preceding air curtain device, air curtain device includes mounting piece, package spare and air curtain module, mounting piece installs in car body, package spare has opposite first end and second end to be in the combination portion between first end and second end, combination portion and mounting piece and air curtain module connect respectively, first end is configured to connect to second end to make package spare package air curtain module is rolled up and / or folded.

[0023] Compared with the prior art, the air curtain device provided by the utility model has the combination portion connected with the mounting piece and the air curtain module on the package piece between the two ends of the package piece, the first end of the package piece is directly connected with the second end after passing around the outer periphery of the air curtain module, and the package of the air curtain module is completed. It can be seen that the air curtain device provided by the utility model eliminates the complicated and complex separate connection between the package piece and the mounting piece, effectively reduces the assembly difficulty, greatly improves the assembly efficiency, and also avoids the problem of unstable package caused by the failure of the matching structure on the mounting piece. Therefore, the air curtain device provided by the utility model has the advantages of simple and fast assembly process and stable and reliable package. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as a limitation on the scope. For ordinary skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0025] Figure 1 The structure schematic view of the air curtain device provided by the embodiment of the utility model before completing assembly;

[0026] Figure 2 For Figure 1 The enlarged schematic view of the A area in the middle;

[0027] Figure 3 For Figure 1 The structure schematic view of the package assembly and the air curtain module in the middle before completing assembly;

[0028] Figure 4 For Figure 1 The structure schematic view of the package assembly and the air curtain module in the middle after completing assembly;

[0029] Figure 5 For Figure 2 The structure schematic view of the mounting piece in the middle;

[0030] Figure 6 For Figure 2 The structure schematic view of the package piece in the middle;

[0031] Figure 7 A structural schematic view of a wrapping piece provided for another embodiment;

[0032] Figure 8 A structural schematic view of a gas curtain device in a state after being activated; Figure 1

[0033] A structural schematic view of a gas curtain device in another state after being activated. Figure 9 Figure 1

[0034] FIG. 10 is a structural schematic view of a gas curtain device; FIG. 11 is a structural schematic view of a wrapping assembly; FIG. 12 is a structural schematic view of a wrapping piece; FIG. 13 is a structural schematic view of a gas curtain module; and FIG. 14 is a structural schematic view of a vehicle. DETAILED DESCRIPTION

[0035] In order to make the objects, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0037] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0038] ​​In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use, or are directions or positional relationships commonly understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present utility model.

[0039] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0040] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, terms such as "disposed" and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0041] The specific implementation of the present utility model is described in detail below with reference to the accompanying drawings.

[0042] Example

[0043] Please refer to Figure 1 and Figure 2 , Figure 1 FIG. 1 is a schematic structural diagram of the air curtain device 10 provided in this embodiment before assembly. Figure 2 Shown Figure 1 A magnified schematic diagram of area A in the middle.

[0044] The air curtain device 10 provided in this embodiment includes an air curtain module 12 and a wrapping assembly 11. The wrapping assembly 11 includes a mounting member 111 and a wrapping member 112. The mounting member 111 is mounted to a vehicle body 20, specifically, a roof rail. The wrapping member 112 and the air curtain module 12 are both connected to the mounting member 111. The wrapping member 112 wraps the air curtain module 12 in its storage state. In this state, the air curtain module 12 is not yet inflated and can be rolled up or folded for easy storage.

[0045] In fact, the air curtain device 10 can also include a gas generator, which is also installed on the vehicle body 20 and connected to the air curtain module 12, for inflating the air curtain module 12 so that the air curtain module 12 expands and breaks the wrapping piece 112, and unfolds between the vehicle occupant and the vehicle side structure, providing side impact protection for the vehicle occupant.

[0046] like Figure 1 As shown, there are multiple wrapping components 11 in this embodiment, and the multiple wrapping components 11 are arranged in sequence on the air curtain module 12 at intervals, and can be specifically arranged in sequence along one side edge of the air curtain module 12.

[0047] It is understood that the multiple wrapping assemblies 11 in this embodiment are formed by combining multiple mounting members 111 with multiple wrapping members 112. During the actual assembly process, the multiple wrapping members 112 corresponding to the multiple wrapping assemblies 11 can wrap and secure the air curtain module 12 in sections, and the corresponding multiple mounting members 111 can be installed in sequence along the roof rails at intervals.

[0048] Please refer to Figure 3 and Figure 4 , Figure 3 The figure shows the structure of the package assembly 11 and the air curtain module 12 before they are assembled. Figure 4 The figure shows a schematic structural diagram of the package component 11 and the air curtain module 12 after they are assembled.

[0049] In this embodiment, the wrapping member 112 has a first end 1121 and a second end 1122 opposite each other, and a connecting portion 1123 disposed between the first end 1121 and the second end 1122. The connecting portion 1123 is connected to the mounting member 111 and the air curtain module 12, respectively. The first end 1121 is configured to connect to the second end 1122, so that the wrapping member 112 can wrap the rolled and / or folded air curtain module 12.

[0050] The wrapping piece 112 may be in the shape of an elongated strip, with the first end 1121 and the second end 1122 being the two ends of the wrapping piece 112 in the length direction. Figure 3 In the state shown, the mounting member 111, the wrapping member 112 and the air curtain module 12 are stacked in sequence, the mounting member 111 and the air curtain module 12 are respectively located on opposite sides of the wrapping member 112, and the wrapping member 112 is curled away from the mounting member 111 to wrap the air curtain module 12, presenting a Figure 4 The package status shown.

[0051] After being rolled up or folded, the air curtain module 12 remains on the side of the wrapping member 112 facing away from the mounting member 111, and its entire structure is generally located near the joint 1123 of the wrapping member 112. In this state, the first end 1121 and the second end 1122 of the wrapping member 112 are connected around the periphery of the air curtain module 12 to wrap the air curtain module 12 and constrain the air curtain module 12 to maintain a stowable state.

[0052] It can be seen that in this embodiment, after the wrapping piece 112 completes wrapping the air curtain module 12, its two ends are connected to each other, replacing the connection between the free end of the wrapping piece 112 and the mounting piece 111 in the prior art, that is, no additional matching structure design is required on the mounting piece 111, the assembly operation is simplified, the assembly efficiency is greatly improved, and the package shape after assembly is stable and reliable.

[0053] It can be understood that the first end 1121 can be above the second end 1122, and during the wrapping process, the first end 1121 moves downward, moves around the periphery of the air curtain module 12 to connect with the second end 1122; the first end 1121 can also be below the second end 1122, and during the wrapping process, the first end 1121 moves upward, moves around the periphery of the air curtain module 12 to connect with the second end 1122.

[0054] It should be noted that during the wrapping process of the air curtain module 12, the movement of the first end 1121 of the wrapping member 112 is not limited to that of the second end 1122. The second end 1122 can also move toward the first end 1121 around the periphery of the air curtain module 12 until they connect. In this embodiment, when the wrapping member 112 is flattened, the distance between the connecting portion 1123 and the first end 1121 is greater than the distance between the connecting portion 1123 and the second end 1122. In other words, a longer wrapping dimension is provided between the connecting portion 1123 and the first end 1121 around the periphery of the air curtain module 12.

[0055] In fact, after the first end 1121 and the second end 1122 of the wrapping member 112 are connected, they need to be fixed to the vehicle body 20, which can also be a roof rail. In order to prevent the mounting member 111 from blocking the fixation between the wrapping member 112 and the vehicle body 20, in this embodiment, Figure 3 In the state shown, the first end 1121 of the wrapping member 112 is above the second end 1122 thereof, and in the flattened state of the wrapping member 112 , the second end 1122 of the wrapping member 112 protrudes from the bottom end of the mounting member 111 .

[0056] During actual assembly, after the first end 1121 and the second end 1122 of the wrapping member 112 are connected and the air curtain module 12 is wrapped, the connection position of the first end 1121 and the second end 1122 is below the mounting member 111, and the first end 1121 and the second end 1122 can be smoothly fixed to the vehicle body 20 without being blocked by the mounting member 111.

[0057] Please refer to Figure 5 , Figure 5 Shown is a schematic structural diagram of the mounting member 111.

[0058] Since no additional matching structure design is required, the mounting member 111 in this embodiment has a simple structure and is in sheet shape as a whole and can be made of PET.

[0059] Specifically, one end of the mounting member 111 is connected to the joint 1123 and the air curtain module 12, and the other end thereof has a mounting hole 1111. The wrapping assembly 11 further includes a fixing member 114, which is used to pass through the mounting hole 1111 and connect to the vehicle body 20 to install the mounting member 111 to the vehicle body 20. Figure 3 shown.

[0060] exist Figure 5 In the embodiment, the bottom end of the mounting member 111 is sewn together with the joint 1123 and the air curtain module 12, and the mounting hole 1111 is generally located near the top end of the mounting member 111. To ensure a secure connection between the bottom end and the wrapping member 112 and to prevent the top end from occupying too much area on the vehicle body 20, in this embodiment, the bottom end width of the mounting member 111 is greater than the top end width.

[0061] exist Figure 3 In the flattened state shown, even if the dimension between the joint 1123 on the wrapping member 112 and the first end 1121 is too large to cover the mounting hole 1111, after the first end 1121 moves downward to wrap around the air curtain module 12 and connects to the second end 1122, the mounting hole 1111 can be opened, so that the fixing member 114 can smoothly install the mounting member 111 to the vehicle body 20.

[0062] In this embodiment, the fixing member 114 is a bolt that is used in conjunction with a locking washer to secure the mounting member 111 to the vehicle body 20. The vehicle body 20 may have threaded holes corresponding to the bolts. In other embodiments, depending on actual application conditions, other structural forms of the fixing member 114, such as a buckle, may also be used.

[0063] As for the connection method of the mounting member 111, the wrapping member 112 and the air curtain module 12, a sewing connection is preferred in this embodiment. In other words, the joint 1123 of the wrapping member 112 has a sewing line, and the sewing position of the air curtain module 12 is actually in its non-inflation area.

[0064] In other embodiments, the combination of the mounting member 111 , the wrapping member 112 and the air curtain module 12 may also be connected in other ways, such as bonding, according to actual application conditions.

[0065] The wrapping assembly 11 provided in this embodiment further includes a connecting member 113 . When the wrapping member 112 wraps the air curtain module 12 , the connecting member 113 connects the first end 1121 and the second end 1122 and fixes them to the vehicle body 20 .

[0066] Please refer to Figure 6 , Figure 6 Shown is a schematic structural diagram of the wrapping member 112 in this embodiment.

[0067] In this embodiment, the wrapping member 112 is made of a flexible material, such as non-woven fabric. The first end 1121 of the wrapping member 112 has a first through hole 1125 , and the second end 1122 has a second through hole 1126 . The connecting member 113 passes through the first through hole 1125 and the second through hole 1126 and is connected to the vehicle body 20 .

[0068] During the actual assembly process, before wrapping the air curtain module 12, the connector 113 can be passed from the side where the air curtain module 12 is located through the second through-hole 1126 of the second end 1122. After the first end 1121 of the wrapping member 112 is wrapped around the outer circumference of the air curtain module 12, the first through-hole 1125 of the first end 1121 is inserted into the end of the connector 113 that passes through the second through-hole 1126, thereby connecting the first end 1121 and the second end 1122 of the wrapping member 112. The connector 113 is then passed through the end of the first through-hole 1125 and mated with the vehicle to secure the wrapping member 112 to the vehicle body 20.

[0069] In this embodiment, the connecting member 113 is a tree nail, and a corresponding plug hole is provided on the vehicle body 20, which can be opened on the roof longitudinal beam. Figure 3 In the flattened state shown, the distance between the mounting hole 1111 on the mounting member 111 and the second through hole 1126 of the wrapping member 112 is equal to the distance between the threaded hole and the plug-in hole on the vehicle body 20. It can be understood that the distance between the threaded hole and the plug-in hole on the vehicle body 20 refers to the distance between the two along the surface of the vehicle body 20.

[0070] During the installation process, you can first complete the wrapping of the air curtain module 12 by completing the wrapping piece 112, and connect the first end 1121 and the second end 1122 through the connecting piece 113. After fixing the package shape, install the mounting piece 111 on the threaded hole on the vehicle body 20 through the fixing piece 114, and directly insert the connecting piece 113 into the plug hole on the vehicle body 20. The installation process is convenient and quick.

[0071] In order to ensure that the wrapping piece 112 can be quickly torn after the air curtain module 12 is inflated, thereby improving the collision protection performance, in this embodiment, the wrapping piece 112 also has a first weakened tear line 1124, and the first weakened tear line 1124 is between the joint 1123 and the first end 1121. Specifically, the first weakened tear line 1124 is between the joint 1123 and the first through hole 1125.

[0072] It is understood that first weakened tear line 1124 is actually a structure on wrapping member 112 that weakens the structural strength and serves to guide wrapping member 112 to tear along its extension path. In this embodiment, first weakened tear line 1124 is formed by sequentially and spaced apart through holes along a straight line in wrapping member 112. In other embodiments, first weakened tear line 1124 may also be a structure on wrapping member 112 that reduces its thickness.

[0073] The two ends of the first weakened tear line 1124 point to the two sides in the width direction of the wrapping piece 112 respectively. In order to reduce the tearing path and improve the deployment efficiency of the air curtain module 12, it is preferred that the first weakened tear line 1124 extends along the width direction of the wrapping piece 112, that is, the first weakened tear line 1124 is perpendicular to the two sides in the width direction of the wrapping piece 112.

[0074] Please continue reading Figure 6 In this embodiment, when the wrapping member 112 is flattened, the distance from the first through hole 1125 to the joint portion 1123 is greater than the distance from the second through hole 1126 to the joint portion 1123. Figure 6 L1 is greater than L2.

[0075] After the connector 113 is pre-installed through the second through-hole 1126, the first end 1121 of the wrapping member 112 is moved around the periphery of the air curtain module 12 to wrap around the air curtain module 12. The first through-hole 1125 is then fitted over the connector 113, effectively passing the connector 113 through the second through-hole 1126. The length between the connector 1123 and the first through-hole 1125 provides a longer wrapping dimension around the air curtain module 12 than the length between the connector 1123 and the first through-hole 1125.

[0076] Since a longer wrapping size is provided between the peripheral joint 1123 and the first end 1121 of the air curtain module 12, in this embodiment, the first weakened tear line 1124 is arranged between the joint 1123 and the first through hole 1125, ensuring that after the wrapping piece 112 is broken along the first weakened tear line 1124, the inflated air curtain module 12 is only slightly hindered by the broken wrapping piece 112, so that it can be quickly deployed.

[0077] It can be understood that after the air curtain device 10 is activated, the wrapping piece 112 is broken into two sections along the first weakened tear line 1124, the section where the first end 1121 is located is fixed to the vehicle body 20 by the connecting piece 113, and the section where the second end 1122 is located is fixed to the mounting piece 111 through the joint 1123.

[0078] As can be seen, in this embodiment, the provision of a single first weakened tear line 1124 ensures that all portions of the wrapping member 112 are effectively secured after activation, preventing the generation of flying debris that could cause an accident. In other embodiments, if the issue of flying debris from the wrapping member 112 is not a concern, multiple first weakened tear lines 1124 may be provided between the joint 1123 of the wrapping member 112 and the first through hole 1125 to further improve the deployment efficiency of the air curtain module 12.

[0079] In actual use, after the air curtain device 10 is activated, the wrapping member 112 is subjected to the force of the air curtain module 12. Both the first end 1121 and the second end 1122 exert a pulling force on the connecting member 113. The combined pulling force can easily pull the connecting member 113 out of the socket on the vehicle body 20 and cause it to splash into the passenger compartment. Because the connecting member 113 is typically made of a hard material, this splashing force can easily cause serious injury to the occupants.

[0080] In order to solve this problem, in this embodiment, Figure 6 In the flattened state shown, the distance from the first through hole 1125 to the edge of the first end 1121 is greater than the distance from the second through hole 1126 to the edge of the second end 1122. Figure 6 L3 is greater than L4.

[0081] Since the distance from the first through hole 1125 to the end edge of the first end 1121 is greater than the distance from the second through hole 1126 to the end edge of the second end 1122, the strength of the wrapping member 112 in the area between the first through hole 1125 and the end edge of the first end 1121 is higher than the strength of the area between the second through hole 1126 and the end edge of the second end 1122.

[0082] As the air curtain module 12 expands and continuously applies force to the wrapping member 112, the second through hole 1126 is torn first by the connecting member 113 due to the lower strength of the area between the second through hole 1126 and the edge of the second end 1122. After the second through hole 1126 is torn, the second end 1122 remains secured to the mounting member 111 via the coupling portion 1123, preventing debris from flying.

[0083] After the second through hole 1126 is torn, the space enclosed by the wrapping piece 112 becomes invalid, and the force exerted by the first end 1121 on the connecting piece 113 through the first through hole 1125 is instantly reduced, that is, the first through hole 1125 will not be torn, and the connecting piece 113 remains fixed to the first end 1121.

[0084] It should be noted that, in this embodiment, after the air curtain device 10 is activated, there are two breaking locations in the wrapping member 112, one is the first weakened tear line 1124, and the other is between the second through hole 1126 and the end edge of the second end 1122. As for the order of breaking between the two, it is not limited in this embodiment.

[0085] Furthermore, in order to improve the tearing efficiency of the second through hole 1126, a tearing guiding structure may be provided between the second through hole 1126 and the edge of the second end 1122. Figure 7 , Figure 7 Shown is a schematic structural diagram of a wrapping piece 112 provided in another embodiment.

[0086] The wrapping piece 112 provided in this embodiment differs from that in the present embodiment in that it further has a second weakened tear line 1127 located between the second through hole 1126 and the end edge of the second end 1122 , with one end of the second weakened tear line 1127 pointing to the second through hole 1126 and the other end pointing to the end edge of the second end 1122 .

[0087] Similarly, in this embodiment, the second weakened tear line 1127 is formed by sequentially and linearly defining a plurality of through-holes on the wrapping member 112. In other embodiments, the second weakened tear line 1127 may also be a structure where the thickness of the wrapping member 112 is reduced. The ends of the second weakened tear line 1127 point toward the second through-hole 1126 and the edge of the second end 1122, respectively. This allows the second through-hole 1126 to be quickly torn to the edge of the second end 1122 under minimal force from the connector 113, thereby improving the reliability of preventing the connector 113 from splashing.

[0088] To reduce the tearing path, second weakened tear line 1127 is preferably perpendicular to the edge of second end 1122 and points toward the center of second through hole 1126. Furthermore, second weakened tear line 1127 preferably extends from second through hole 1126 to the edge of second end 1122. In this embodiment, the edge of second end 1122 of wrapping member 112 is perpendicular to its length, and second through hole 1126 is located at the center of wrapping member 112 in the width direction. Therefore, the second weakened line is located in the middle of the width of wrapping member 112 and extends along the length of wrapping member 112.

[0089] It can be understood that in this embodiment, since the setting of the second weakened tear line 1127 has played a role in guiding the tearing trajectory of the second through hole 1126, in this embodiment, the size relationship between the distance from the first through hole 1125 to the end edge of the first end 1121 and the distance from the second through hole 1126 to the end edge of the second end 1122 can be unrestricted.

[0090] Please refer to Figure 8 and Figure 9 , Figure 8 This is a schematic structural diagram of the air curtain device 10 provided in this embodiment in a state after being activated. Figure 9 FIG. 1 is a schematic structural diagram of the air curtain device 10 in another state after being activated.

[0091] In practice, the air curtain device 10 provided in this embodiment is mounted on a vehicle body 20, which can be a roof rail, via multiple wrapping components 11. Specifically, threaded holes and plug holes are defined on the vehicle body 20. Fixing members 114 threadably engage with the threaded holes, and connectors 113 plug into the plug holes. Once installed, the air curtain device 10 resides within the space between the vehicle body 20, the roof 30, and the pillars 40, which are typically located between the front and rear side windows.

[0092] In the event of a vehicle collision, the air curtain device 10 is activated, and the gas generator quickly inflates the air curtain module 12 in the storage state. The air curtain module 12 expands rapidly and squeezes the wrapping member 112 from the inside out. Figure 8 The figure shows a structural diagram of the air curtain module 12 in the initial stage of expansion. After the wrapping member 112 is squeezed, the first weakened tear line 1124 between the joint 1123 and the first through hole 1125 is torn under the action of tension, and the second through hole 1126 is torn by the connecting member 113. The interval between the two tears is extremely short.

[0093] After the wrapping piece 112 is torn at two locations, its structure is divided into two parts. The part where the first end 1121 is located is fixed to the vehicle body 20 by the connecting piece 113, and the part where the second end 1122 is located is fixed to the mounting piece 111 through the joint 1123. The mounting piece 111 remains installed on the vehicle body 20, so no debris will fly after the air curtain device 10 is activated.

[0094] Figure 9 The figure shows the structure of the curtain airbag module 12 in the final stage of expansion. After the wrapping member 112 is torn, the curtain airbag module 12 continues to expand, pushing open the vehicle's roof 30 and deploying downward from the inside of the pillar 40. After the curtain airbag module 12 is fully deployed, it is suspended between the vehicle's internal side structure and the occupants by multiple wrapping assemblies 11, cushioning the impact between the occupants and the vehicle's side structure and providing collision protection.

[0095] In summary, the air curtain device 10 provided in this embodiment features wrapping member 112, whose ends are connected to each other after wrapping the air curtain module 12, to secure the package shape. This replaces the existing technique in which the free end of wrapping member 112 is connected to mounting member 111. This avoids the need for complex mating structures on mounting member 111 and the tedious connection between wrapping member 112 and the mating structures. This significantly simplifies the assembly of the air curtain device 10 and significantly improves assembly efficiency. Furthermore, because the connection to the mating structure on mounting member 111 is eliminated, the package shape after assembly is stable and reliable.

[0096] Furthermore, by providing the first weakened tear line 1124 on the wrapping member 112, the tearing efficiency and response speed of the wrapping member 112 are significantly improved, providing a more stable and reliable protective effect and preventing debris from flying from the wrapping member 112. Furthermore, by weakening the strength of the area between the second through hole 1126 and the edge of the second end 1122, the second through hole 1126 can be quickly torn by the connector 113 in the early stages of a collision with the air curtain module 12. This allows the tensile force exerted by the wrapping member 112 on the connector 113 to be instantly released, preventing the connector 113 from flying around in the passenger compartment.

[0097] Therefore, the air curtain device 10 provided in this embodiment has the characteristics of simple and quick assembly process, stable and reliable packaging, higher safety and better collision protection effect.

[0098] This embodiment also provides a vehicle, comprising a vehicle body 20 and the aforementioned air curtain device 10. The mounting member 111 of the air curtain device 10 is mounted to the vehicle body 20 via a fixing member 114. The first end 1121 and the second end 1122 of the wrapping member 112 are connected to the vehicle body 20 via a connecting member 113. The air curtain device 10 is located within the space between the vehicle body 20, the roof 30, and the pillar 40. In practice, the vehicle body 20 is also equipped with a gas generator, which is connected to the air curtain module 12.

[0099] In the event of a vehicle collision, the inflator rapidly inflates the stored curtain airbag module 12, causing it to expand rapidly and squeeze the wrapping member 112 from the inside out. After the wrapping member 112 tears, the curtain airbag module 12 continues to expand, pushing open the vehicle's roof 30 and deploying downward from the inside of the pillar 40. Once fully deployed, the curtain airbag module 12 is suspended between the vehicle's internal side structure and the occupants via multiple wrapping assemblies 11, cushioning the impact and providing collision protection.

[0100] Benefiting from the beneficial effects of the air curtain device 10 provided in this embodiment, the vehicle provided in this embodiment has the characteristics of higher safety and better collision protection effect.

[0101] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An air curtain device, characterized in that: The invention comprises a mounting member (111), a wrapping member (112), and an air curtain module (12), wherein the mounting member (111) is used for being mounted on a vehicle body (20), and the wrapping member (112) has a first end (1121) and a second end (1122) opposite to each other, and a joint (1123) between the first end (1121) and the second end (1122); The coupling portion (1123) is connected to the mounting member (111) and the air curtain module (12), respectively, and the first end (1121) is configured to be connected to the second end (1122) so that the wrapping member (112) wraps the rolled and / or folded air curtain module (12).

2. The air curtain device according to claim 1, characterized in that: The air curtain module (12) is located on a side of the wrapping member (112) facing away from the mounting member (111), and the wrapping member (112) is curled in a direction away from the mounting member (111) to wrap the air curtain module (12).

3. The air curtain device according to claim 1, characterized in that: The wrapping piece (112) further has a first weakened tear line (1124), and the first weakened tear line (1124) is located between the joint (1123) and the first end (1121).

4. The air curtain device according to claim 1, characterized in that: When the wrapping piece (112) is flattened, the distance between the joining portion (1123) and the first end (1121) is greater than the distance between the joining portion (1123) and the second end (1122).

5. The air curtain device according to claim 1, characterized in that: The air curtain device (10) further includes a connecting member (113), and when the wrapping member (112) wraps the air curtain module (12), the connecting member (113) connects the first end (1121) and the second end (1122) and fixes them to the vehicle body (20).

6. The air curtain device according to claim 5, characterized in that: The first end (1121) has a first through hole (1125), the second end (1122) has a second through hole (1126), and the connecting member (113) passes through the first through hole (1125) and the second through hole (1126) and is connected to the vehicle body (20).

7. The air curtain device according to claim 6, characterized in that: The wrapping piece (112) further has a first weakened tear line (1124), and the first weakened tear line (1124) is located between the joint (1123) and the first through hole (1125).

8. The air curtain device according to claim 6, characterized in that: When the wrapping piece (112) is flattened, the distance from the first through hole (1125) to the end edge of the first end (1121) is greater than the distance from the second through hole (1126) to the end edge of the second end (1122).

9. The air curtain device according to claim 6, characterized in that: The wrapping piece (112) also has a second weakened tear line (1127) located between the second through hole (1126) and the end edge of the second end (1122), one end of the second weakened tear line (1127) points to the second through hole (1126), and the other end points to the end edge of the second end (1122).

10. The air curtain device according to claim 6, characterized in that When the wrapping piece (112) is flattened, the distance from the first through hole (1125) to the joining portion (1123) is greater than the distance from the second through hole (1126) to the joining portion (1123).

11. The air curtain device according to claim 1, characterized in that: One end of the mounting member (111) is connected to the coupling portion (1123), and the other opposite end has a mounting hole (1111); The air curtain device (10) further includes a fixing member (114), wherein the fixing member (114) is used to pass through the mounting hole (1111) and connect with the vehicle body (20) to mount the mounting member (111) to the vehicle body (20).

12. The air curtain device according to claim 1, wherein: The number of the mounting parts (111) and the number of the wrapping parts (112) are both multiple, and the multiple mounting parts (111) and the multiple wrapping parts (112) are combined one by one to form multiple wrapping components (11), and the multiple wrapping components (11) are arranged in sequence on the air curtain module (12).

13. A vehicle, characterized in that: The invention comprises a vehicle body (20) and an air curtain device (10) according to any one of claims 1 to 12, wherein the mounting member (111) is mounted on the vehicle body (20).

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