Airbag device, airbag system, and vehicle

Abstract

The utility model relates to the technical field of passenger protection devices, aims to solve the problem of how to reduce the injury risk of passengers, and provides a safety air bag device, a safety air bag system and a vehicle. The safety air bag device comprises an air bag cabin, a limiting structure and an air bag. The air bag cabin comprises a cabin body and a cabin cover, the cabin body is provided with a containing cavity with an opening in one side, and the cabin cover is rotatably connected to the cabin body and can cover or open the opening. The limiting structure is movably connected between the cabin body and the cabin cover and used for limiting the opening angle of the cabin cover relative to the cabin body. The airbag is arranged in the containing cavity. The air bag cabin has a closed state and an open state. In the closed state, the hatch cover covers the opening, and the limiting structure and the air bag are contained in the containing cavity. In the open state, the airbag supports the hatch in the open position. The air bag has the advantage that the injury risk caused by the fact that the head of a passenger breaks down the air bag is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of occupant protection devices, in particular to an airbag device, an airbag system and a vehicle. BACKGROUND

[0002] An airbag device is provided in the related art, which includes an airbag chamber and an airbag arranged in the airbag chamber. When a vehicle collides, the airbag is deployed to provide protection for an occupant.

[0003] However, the airbag device in the related art has poor protection effect on the occupant, and the occupant is prone to injury. CONTENT OF THE UTILITY MODEL

[0004] The present application provides an airbag device, an airbag system and a vehicle to solve the problem of how to reduce the risk of injury to the occupant.

[0005] According to one aspect of the present application, an airbag device is provided, which includes an airbag chamber, a limiting structure and an airbag. The airbag chamber includes a chamber body and a chamber cover. The chamber body is provided with a containing cavity with one side opening. The chamber cover is rotatably connected to the chamber body and can cover or open the opening. The limiting structure is movably connected between the chamber body and the chamber cover, and is used to limit the opening angle of the chamber cover relative to the chamber body. The airbag is arranged in the containing cavity. The airbag chamber has a closed state and an open state. In the closed state, the chamber cover is arranged on the opening, and the limiting structure and the airbag are respectively accommodated in the containing cavity. In the open state, the airbag supports the chamber cover at an open position.

[0006] The above-mentioned airbag device, in the open state, the limiting structure limits the opening angle of the chamber cover, so that the chamber cover can be supported on the side of the deployed airbag away from the occupant, so that the airbag can more effectively provide support to the occupant, the airbag more stably contacts with the occupant, reduces the airbag excessively moves away from the occupant side due to the occupant extrusion, thus, the risk of injury caused by the occupant's head breaking through the airbag can be reduced.

[0007] In one embodiment, the chamber body has a chamber wall, the chamber wall is provided with a sliding groove in communication with the containing cavity, and the sliding groove has opposite first and second ends. The limiting structure includes a sliding rod and a transmission structure. The sliding rod is slidably fitted in the sliding groove and is limited between the first and second ends. The transmission structure is connected between the sliding rod and the chamber cover. In the closed state, the sliding rod is located at the first end. In the open state, the sliding rod is located at the second end and abuts against the chamber body.

[0008] In one embodiment, the airbag device further includes a rotating shaft, the rotating shaft is arranged on the chamber wall, and the axis of the rotating shaft is parallel to and spaced apart from the rotating axis of the chamber cover. The transmission structure includes a rotating arm, the middle position of the rotating arm is rotatably connected to the rotating shaft, one end of the rotating arm is connected to the sliding rod, and the other end of the rotating arm is connected to the chamber cover.

[0009] In one of the embodiments, the rotating arm comprises a first branch, a second branch and a third branch. The first branch, the second branch and the third branch are connected in sequence in a Z shape, and the first branch and the second branch are rotatably connected to the rotating shaft at an intersection angle. An end of the first branch away from the rotating shaft is connected to the sliding rod. An end of the third branch away from the rotating shaft is connected to the hatch.

[0010] In one of the embodiments, the bulkhead has two, and each of the two bulkheads is provided with a sliding groove for matching the two ends of the sliding rod respectively. The number of the transmission structures is two, and each of the two transmission structures is connected to the two ends of the sliding rod respectively.

[0011] In one of the embodiments, the airbag device further comprises two partitions, and each of the two partitions is arranged in the accommodating cavity. The two partitions and the two bulkheads are spaced apart to define two spaced apart spaces, and each of the partitions is provided with a avoiding slot. Each of the two transmission structures is arranged in the two spaced apart spaces respectively. The sliding rod passes through the avoiding slot and extends into the spaced apart space.

[0012] In one of the embodiments, the hatch is provided with an anti-skid structure on the side facing the airbag.

[0013] In one of the embodiments, the anti-skid structure comprises a plurality of protrusions, and the plurality of protrusions are distributed in a direction parallel to the rotating axis of the hatch.

[0014] According to another aspect of the present application, there is provided an airbag system, comprising:

[0015] The airbag device according to any one of the above embodiments; and

[0016] The instrument panel comprises a first panel body and a second panel body. The first panel body extends along the X-axis direction of the vehicle. The second panel body is bent and connected to an end of the first panel body away from the front windshield, and extends downward along the Z-axis direction of the vehicle. The airbag chamber is located on the side of the first panel body away from the roof along the Z-axis direction of the vehicle. The chamber body is provided with an opening on the side close to the first panel body along the Z-axis direction of the vehicle. The hatch is rotatably connected to the side of the chamber body close to the front windshield along the Z-axis direction of the vehicle.

[0017] According to another aspect of the present application, there is provided a vehicle comprising the airbag system according to the above embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be considered as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 A side view of a vehicle in an embodiment of the present application.

[0020] Figure 2 A side view of an airbag system in an embodiment of the present application. Figure 1 A side view of an airbag system in an embodiment of the present application, with a front windshield additionally shown.

[0021] Figure 3 A side view of an airbag system in an embodiment of the present application. Figure 1 A partial structural schematic view of an airbag device in an embodiment of the present application in an open state.

[0022] Explanation of main element symbols:

[0023] Vehicle 1

[0024] Airbag system 2

[0025] Airbag device 100

[0026] Airbag chamber 10

[0027] Chamber body 11

[0028] Accommodation cavity 11a

[0029] Opening 12a

[0030] Slide groove 13a

[0031] First end 13a1

[0032] Second end 13a2

[0033] Spacing space 14a

[0034] Chamber wall 111

[0035] Chamber cover 12

[0036] Antiskid structure 121

[0037] Protrusion 1212

[0038] Slide rod 20

[0039] Transmission structure 30

[0040] Rotary arm 31

[0041] First branch arm 311

[0042] Second branch arm 312

[0043] Third branch arm 313

[0044] Airbag 40

[0045] Deflation port 40a

[0046] First portion 41

[0047] Second portion 42

[0048] Rotating shaft 50

[0049] Partition 60

[0050] Avoidance groove 60a

[0051] Limiting structure 70

[0052] Instrument panel 200

[0053] First plate body 201

[0054] Second plate body 202

[0055] Front windshield 300

[0056] The following detailed description will further describe the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0057] The technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0058] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. When an element is referred to as being "disposed on" another element, it can be directly disposed on the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only.

[0059] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0060] Some embodiments of the present application are described in detail. The following embodiments and features of the embodiments can be combined with each other in the case of no conflict.

[0061] EMBODIMENTS

[0062] A related technology provides an airbag device that includes an airbag that deploys to protect occupants in the event of a vehicle collision. However, the airbag device in this technology offers relatively poor protection for occupants.

[0063] The inventors of this application have discovered that the aforementioned problem arises because, during a vehicle collision, the deployed airbag may not receive effective support, causing the occupant to move excessively forward towards the airbag. This makes the airbag more susceptible to penetration by the occupant, resulting in the occupant's head impacting the vehicle's interior and causing injury. For example, in a frontal collision, the airbag deploys between the windshield and the occupant. The high collision speed in a frontal collision easily causes the windshield to shatter, making it difficult for the windshield to provide effective support for the side of the airbag closest to the windshield. Furthermore, when the windshield is far from the airbag, the deployed airbag cannot receive support from the windshield, leading to the occupant's head moving excessively forward towards the windshield during a frontal collision. This makes the airbag more susceptible to penetration by the occupant's head, resulting in the occupant's head impacting the vehicle's dashboard and causing injury.

[0064] In view of this, this embodiment provides an airbag device 100 and an airbag system 2 and a vehicle 1 using the airbag device 100, which can solve the above-mentioned problems. The following will describe the invention by way of example with reference to the accompanying drawings.

[0065] Figure 1 This is a side view of vehicle 1 in an embodiment of this application; Figure 2 for Figure 1 A side view of the airbag system 2 in the illustrated embodiment, with the windshield 300 also shown in the figure; Figure 3 for Figure 1 A partial structural schematic diagram of the airbag device 100 in the deployed state in the illustrated embodiment.

[0066] See Figure 1 and Figure 2 This application provides a vehicle 1, which includes an airbag system 2.

[0067] See Figure 2 and Figure 3 The airbag system 2 includes an airbag device 100 and an instrument panel 200. The airbag device 100 includes an airbag compartment 10 and an airbag 40. The airbag compartment 10 includes a body 11 and a cover 12. The body 11 has a receiving cavity 11a with an opening 12a on one side, and the airbag 40 is disposed in the receiving cavity 11a. The airbag compartment 10 has an open state. In the open state, the airbag 40 supports the cover 12 in the open position.

[0068] The instrument panel 200 comprises a first panel body 201 extending along the X-axis direction of the vehicle 1 and a second panel body 202 connected to one end of the first panel body 201 away from the front windshield 300 and extending downward along the Z-axis direction of the vehicle 1. The airbag chamber 10 is located on the side of the first panel body 201 away from the roof along the Z-axis direction of the vehicle 1, the chamber body 11 is provided with an opening 12a on the side close to the first panel body 201 along the Z-axis direction of the vehicle 1, and the chamber cover 12 is rotatably connected to the side close to the front windshield 300 along the Z-axis direction of the vehicle 1.

[0069] The first panel body 201 is provided with an instrument panel tear line (not shown in the figure), when the vehicle 1 collides frontally, the vehicle 1 sends a collision signal to make the gas generator inflate the airbag 40, the airbag 40 is deployed after tearing the tear line of the instrument panel 200, the airbag chamber 10 is switched to the open state, at this time, the airbag 40 supports the chamber cover 12 at the open position, the side of the airbag 40 close to the front windshield 300 is supported by the chamber cover 12, so that the airbag 40 provides better support to the occupant in the front.

[0070] In some embodiments, as shown in Figure 2 The airbag 40 comprises a first part 41 and a second part 42, the first part 41 and the second part 42 communicate with each other, in the deployed state, the first part 41 is located on the side close to the roof of the first panel body 201 along the Z-axis direction of the vehicle 1, and the second part 42 is located on the side away from the front windshield 300 of the second panel body 202 along the X-axis direction of the vehicle 1. In this way, when the vehicle 1 collides frontally, the first part 41 provides protection for the head of the occupant, and the second part 42 provides protection for the body of the occupant, so as to more comprehensively protect the occupant.

[0071] Referring to Figure 2 and Figure 3 The present embodiment provides a safety airbag device 100 comprising an airbag chamber 10, a limiting structure 70, and an airbag 40. The airbag chamber 10 comprises a chamber body 11 provided with a one-side opening 12a and a chamber cover 12 rotatably connected to the chamber body 11 and capable of covering or opening the opening 12a. The limiting structure 70 is movably connected between the chamber body 11 and the chamber cover 12, for limiting the opening angle of the chamber cover 12 relative to the chamber body 11. The airbag 40 is arranged in the accommodating cavity 11a. Wherein, the airbag chamber 10 has a closed state (not shown in the figure) and an open state, in the closed state, the chamber cover 12 covers the opening 12a, and the airbag 40 is accommodated in the accommodating cavity 11a, in the open state, the airbag 40 supports the chamber cover 12 at the open position.

[0072] The above airbag device 100, due to the limiting structure 70 limiting the opening angle of the cover 12 in the open state, the cover 12 can be supported on the side away from the occupant after the airbag 40 is deployed, so that the airbag 40 can more effectively provide support to the occupant, the airbag 40 more stably contacts the occupant, reduces the airbag 40 due to the occupant extrusion caused by excessive forward movement away from the occupant side, thus, reduce the risk of injury caused by the occupant after breaking through the airbag 40 and contacting the inside of the vehicle 1. For example, the direction of the rotation axis of the cover 12 can be the Y-axis direction of the vehicle 1, and the airbag 40 can be deployed between the windshield 300 and the occupant, so that the cover 12 is supported on the side of the airbag 40 close to the windshield 300 in the X-axis direction of the vehicle 1 in the open state, so that the airbag 40 more stably supports the occupant, avoids the airbag 40 under the extrusion of the occupant's head excessively forward to the windshield 300, causing the head of the occupant to break through the airbag 40 and contact the instrument panel 200.

[0073] It can be understood that when the vehicle 1 collides, the airbag 40 inflates and deploys, thereby pushing the cover 12 away from the cabin 11, and rotating the cover 12 relative to the cabin 11 until the cover 12 is limited by the limiting structure 70 and is fixed relative to the cabin 11, at this time the airbag cabin 10 is in the open state.

[0074] In some embodiments, the part of the airbag 40 located in the cabin 11 is provided with an inflation port, and the airbag device 100 further comprises a gas generator (not shown in the figure) arranged in the cabin 11, the gas generator is in communication with the inflation port, and is used to inflate the airbag 40 when the vehicle 1 collides, so that the airbag 40 is deployed. As shown in the figure, the airbag 40 is also provided with a deflation port 40a for discharging the gas in the airbag 40. Figure 2

[0075] In some embodiments, the cabin 11 has a cabin wall 111, the cabin wall 111 is provided with a sliding groove 13a in communication with the accommodating cavity 11a, the sliding groove 13a has opposite first end 13a1 and second end 13a2. The limiting structure 70 includes a sliding rod 20 and a transmission structure 30, the sliding rod 20 is slidably fitted in the sliding groove 13a and is limited between the first end 13a1 and the second end 13a2. The transmission structure 30 is connected between the sliding rod 20 and the cover 12. In the closed state, the sliding rod 20 is located at the first end 13a1, and in the open state, the sliding rod 20 is located at the second end 13a2 and abuts against the cabin 11. In this way, in the open state, the sliding rod 20 is located at the second end 13a2 and abuts against the cabin 11 to prevent the cover 12 from rotating away from the airbag 40, so that the side of the airbag 40 close to the cover 12 is supported by the cover 12, and the airbag 40 more stably contacts and supports the occupant. And because the cover 12 is limited by the cooperation of the sliding rod 20 and the sliding groove 13a, the structure is stable and reliable, so that the support of the cover 12 to the airbag 40 is more stable and reliable.​

[0076] It can be understood that when the vehicle 1 collides, the airbag 40 inflates and expands to push the hatch 12 to rotate relative to the cabin 11, thereby driving the sliding rod 20 to move from the first end 13a1 to the second end 13a2.

[0077] In some embodiments, as shown in Figure 3 The safety airbag device 100 further includes a rotating shaft 50 arranged on the cabin wall 111, and the axis of the rotating shaft 50 is parallel to and spaced apart from the rotating axis of the hatch 12. The transmission structure 30 includes a rotating arm 31, the middle position of the rotating arm 31 is rotatably connected to the rotating shaft 50, one end of the rotating arm 31 is connected to the sliding rod 20, and the other end of the rotating arm 31 is connected to the hatch 12. In this way, by arranging the rotating arm 31 to be connected between the hatch 12 and the sliding rod 20, the transmission structure 30 is stable and reliable and is not easy to break. And by arranging the rotating shaft 50 on the cabin wall 111 and rotatably connecting the rotating arm 31 and the rotating shaft 50, the rotating arm 31 rotates more smoothly relative to the cabin 11, thereby making the hatch 12 more easily rotate to the open position under the push of the airbag 40.

[0078] In some embodiments, as shown in Figure 3 The rotating arm 31 includes a first branch arm 311, a second branch arm 312, and a third branch arm 313. The first branch arm 311, the second branch arm 312, and the third branch arm 313 are connected in sequence in a Z shape, and the first branch arm 311 and the second branch arm 312 are rotatably connected to the rotating shaft 50 at the intersection angle, one end of the first branch arm 311 away from the rotating shaft 50 is connected to the sliding rod 20, and one end of the third branch arm 313 away from the rotating shaft 50 is connected to the hatch 12. In this way, it is convenient to connect the first branch arm 311 with the sliding rod 20, and it is convenient to connect the third branch arm 313 with the hatch 12.

[0079] In some embodiments, as shown in Figure 3 The cabin wall 111 has two, and each of the two cabin walls 111 is provided with a sliding groove 13a for respectively matching the two ends of the sliding rod 20. The number of transmission structures 30 is two, and each of the two transmission structures 30 is connected to the two ends of the sliding rod 20. In this way, the two ends of the sliding rod 20 are respectively slidably matched in the two sliding grooves 13a, the movement stability of the sliding rod 20 is improved, and the sliding rod 20 is connected to the hatch 12 through the two transmission mechanisms respectively, further improving the structural stability and reliability of the safety airbag device 100.

[0080] In some embodiments, as shown in Figure 3As shown, the airbag device 100 further comprises two partitions 60 (only one of which is shown in the figure), which are respectively arranged in the accommodating cavity 11a, and the two partitions 60 and the two bulkheads 111 are respectively spaced to define two spaced spaces 14a, and the partitions 60 are provided with avoiding grooves 60a. The two transmission structures 30 are respectively arranged in the two spaced spaces 14a, and the sliding rod 20 passes through the avoiding grooves 60a and extends into the spaced spaces 14a. In this way, by arranging the partitions 60, when the airbag 40 is deployed, the partitions 60 are blocked between the airbag 40 and the transmission structure 30, so as to avoid the airbag 40 being torn by the transmission structure 30. It can be understood that the avoiding grooves 60a correspond to the shape of the sliding grooves 13a to allow the sliding rod 20 to move.

[0081] In some embodiments, as shown in Figure 3 As shown, the hatch cover 12 is provided with an anti-skid structure 121 on the side facing the airbag 40, so as to reduce the relative sliding between the airbag 40 and the hatch cover 12 when the airbag 40 supports the hatch cover 12 in the open position, so that the hatch cover 12 can be more stably supported on the side of the airbag 40 away from the occupant, and thus the airbag 40 can provide more stable support for the occupant.

[0082] In some embodiments, as shown in Figure 2 As shown, the anti-skid structure 121 comprises a plurality of protrusions 1212, which are distributed in the direction parallel to the rotation axis of the hatch cover 12, so as to reduce the sliding of the airbag 40 relative to the hatch cover 12 in the direction of the rotation axis of the hatch cover 12 in the open state, thereby avoiding the occupant from shaking in the direction of the rotation axis of the hatch cover 12.

[0083] In some embodiments, as shown in Figure 3 As shown, the protrusions 1212 are in the shape of strips extending in the direction perpendicular to the rotation axis of the hatch cover 12, so as to make the protrusions 1212 contact more parts of the airbag 40 in the open state, thereby improving the anti-skid effect on the airbag 40. Alternatively, the protrusions 1212 extend from one side of the hatch cover 12 in the direction perpendicular to the rotation axis of the hatch cover 12 to the other side, so as to further increase the part of the airbag 40 contacting the protrusions 1212 in the open state.

[0084] It should be noted that, Figure 3 The partial lines in the middle are represented by dashed lines to show the internal structure.

[0085] The above embodiments are only used to illustrate the technical solutions of the present application and not to limit the present application. Although the present application has been described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. An airbag device, characterized in that, include: An airbag cabin includes a cabin body and a canopy. The cabin body has a receiving cavity with an opening on one side, and the canopy is rotatably connected to the cabin body and can close or open the opening. A limiting structure is movably connected between the cabin and the hatch to limit the opening angle of the hatch relative to the cabin. as well as, An airbag is disposed in the receiving cavity; The airbag compartment has a closed state and an open state; In the closed state, the hatch covers the opening, and the limiting structure and the airbag are respectively housed in the receiving cavity; In the open state, the airbag supports the canopy in the open position.

2. The airbag device according to claim 1, characterized in that, The cabin has a cabin wall, and the cabin wall has a groove that communicates with the receiving cavity. The groove has a first end and a second end that are opposite to each other. The limiting structure includes a sliding rod and a transmission structure. The sliding rod is slidably fitted into the slide groove and is limited between the first end and the second end. The transmission structure is connected between the sliding rod and the hatch. In the closed state, the sliding rod is located at the first end; In the open state, the sliding rod is located at the second end and abuts against the cabin body.

3. The airbag device according to claim 2, characterized in that, The airbag device also includes a rotating shaft, which is disposed on the cabin wall, and the axis of the rotating shaft is parallel to and spaced apart from the axis of rotation of the cabin cover. The transmission structure includes a rotating arm, the middle position of which is rotatably connected to the rotating shaft, one end of which is connected to the sliding rod, and the other end of which is connected to the hatch.

4. The airbag device according to claim 3, characterized in that, The rotating arm includes a first arm, a second arm, and a third arm; The first arm, the second arm, and the third arm are connected in sequence in a Z-shape, and the rotating shaft is rotatably connected at the angle where the first arm and the second arm intersect. The end of the first arm away from the rotation axis is connected to the sliding rod; The end of the third arm furthest from the rotation axis is connected to the hatch.

5. The airbag device according to claim 2, characterized in that, There are two bulkheads, and each of the two bulkheads is provided with a sliding groove for respectively engaging the two ends of the sliding rod; There are two transmission structures, which are respectively connected to the two ends of the sliding rod.

6. The airbag device according to claim 5, characterized in that, The airbag device also includes two partitions, which are respectively disposed in the receiving cavity. The two partitions and the two cabin walls are respectively spaced apart to define the interval space. The partitions are provided with clearance grooves. The two transmission structures are respectively disposed within the two interval spaces; The sliding rod passes through the clearance groove and extends into the interval space.

7. The airbag device according to claim 1, characterized in that, The canopy has an anti-slip structure on the side facing the airbag.

8. The airbag device according to claim 7, characterized in that, The anti-slip structure includes multiple protrusions, which are spaced apart along a direction parallel to the rotation axis of the hatch.

9. An airbag system, characterized in that, include: The airbag device as described in any one of claims 1 to 8; as well as, The instrument panel includes a first panel and a second panel, the first panel extending along the X-axis of the vehicle, and the second panel bent and connected to the end of the first panel away from the windshield, and extending downward along the Z-axis of the vehicle. The airbag compartment is located on the side of the first panel away from the roof along the Z-axis of the vehicle. The compartment has the opening on the side of the first panel along the Z-axis of the vehicle. The cover is rotatably connected to the side of the compartment near the windshield along the Z-axis of the vehicle.

10. A vehicle, characterized in that, Includes the airbag system as described in claim 9.

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