Vehicle-mounted curtain storage device and vehicle

Abstract

The embodiment of the invention provides a vehicle-mounted curtain storage device and a vehicle, the vehicle-mounted curtain storage device comprises an unfolding and folding assembly and a driving assembly, and the driving assembly comprises a driving part, an energy storage part and an ignition pushing mechanism; the driving assembly has a first state and a second state, and the ignition pushing mechanism is used for switching the driving assembly from the first state to the second state; in the first state, the driving part drives the unfolding and folding assembly to enable the unfolding and folding assembly to unfold or fold the curtain, and in the second state, the energy storage part drives the unfolding and folding assembly to enable the unfolding and folding assembly to fold the curtain. According to the vehicle-mounted curtain storage device provided by the embodiment of the invention, when the vehicle collides and the curtain is unfolded, the curtain can be quickly folded.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of vehicles, and in particular, to an in-vehicle curtain storage device and a vehicle. Background Art

[0002] An in-vehicle curtain is a display device inside an automobile and is usually used in conjunction with an in-vehicle projection system. The in-vehicle curtain is widely used in scenarios such as in-vehicle movie viewing and business office presentations, greatly enriching the driving experience of consumers.

[0003] In related technologies, an electric motor is usually used to drive a link assembly to realize the unfolding and retracting actions of the curtain. However, the time required for the curtain to retract is relatively long. In the event of a vehicle collision, the curtain cannot be quickly retracted, resulting in the vehicle occupants being easily injured by hitting the curtain. In addition, the curtain that cannot be quickly retracted is easily broken when subjected to an external force, and the broken parts may cause secondary injuries to the vehicle occupants. Summary of the Invention

[0004] The embodiments of the present application provide an in-vehicle curtain storage device and a vehicle, aiming to improve the problem that the curtain cannot be quickly retracted in the event of a vehicle collision.

[0005] In a first aspect, the embodiments of the present application provide an in-vehicle curtain storage device, including a deployment and retraction assembly and a driving assembly. The driving assembly includes a driving component, an energy storage component, and an ignition and propulsion mechanism.

[0006] The driving assembly has a first state and a second state, and the ignition and propulsion mechanism is used to switch the driving assembly from the first state to the second state.

[0007] In the first state, the driving component drives the deployment and retraction assembly to deploy or retract the curtain. In the second state, the energy storage component drives the deployment and retraction assembly to retract the curtain.

[0008] According to the above technical means, in the event of a vehicle collision and the curtain is deployed, the ignition and propulsion mechanism is triggered and started, prompting the driving assembly to quickly switch from the first state to the second state. The energy storage component immediately releases the pre-stored energy to drive the deployment and retraction assembly, so that the deployment and retraction assembly quickly retracts the curtain. In summary, when the vehicle collides and the curtain is deployed, the in-vehicle curtain storage device can quickly retract the curtain, thereby avoiding the vehicle occupants being easily injured by hitting the curtain caused by the inability to quickly retract the curtain, and avoiding secondary injuries to the vehicle occupants caused by the broken parts of the curtain that cannot be quickly retracted. In addition, the driving assembly has strong versatility and can be flexibly adapted to different forms of deployment and retraction assemblies under the same driving requirements.

[0009] Optionally, the driving assembly further includes a transmission rotating shaft, which is inserted into the unfolding and retracting assembly. In the first state, the driving component is in transmission connection with the transmission rotating shaft to drive the unfolding and retracting assembly. In the second state, the energy storage component is in transmission connection with the transmission rotating shaft to drive the unfolding and retracting assembly;

[0010] The ignition and pushing mechanism is used to move the transmission rotating shaft axially or move the driving component and the energy storage component along the axial direction of the transmission rotating shaft, so that the driving assembly is switched from the first state to the second state.

[0011] According to the above technical means, a rotational force can be output to the unfolding and retracting assembly through the transmission rotating shaft. Additionally, by moving the transmission rotating shaft or the driving component and the energy storage component, the state switching of the driving assembly can be achieved, which is beneficial to the compactness of the structure.

[0012] Optionally, the ignition and pushing mechanism is used to move the transmission rotating shaft axially. A first transmission member and a second transmission member are arranged on the transmission rotating shaft. The driving component is connected with a third transmission member, and the energy storage component is connected with a fourth transmission member;

[0013] In the first state, the third transmission member meshes with the first transmission member, and the fourth transmission member does not mesh with the second transmission member. In the second state, the fourth transmission member meshes with the second transmission member, and the third transmission member does not mesh with the first transmission member.

[0014] According to the above technical means, the transmission ratios of the third transmission member to the first transmission member and the fourth transmission member to the second transmission member can be set independently respectively, so as to respectively adapt to the requirements of normally retracting and unfolding the curtain under normal circumstances and quickly retracting the curtain during a collision.

[0015] Optionally, the first transmission member is a first gear, the third transmission member is a third gear, the second transmission member is a second gear, the fourth transmission member is a fourth gear, and the energy storage component is a scroll spring.

[0016] According to the above technical means, the energy storage component is in transmission connection with the transmission rotating shaft through the fourth transmission member and the second gear, with a compact structure and small occupied space; the scroll spring has reliable energy storage and high cost performance. The driving component is in transmission connection with the transmission rotating shaft through the third gear and the first gear, with a compact structure and small occupied space.

[0017] Optionally, the ratio of the number of teeth of the fourth gear to the number of teeth of the second gear is greater than three and greater than the ratio of the number of teeth of the third gear to the number of teeth of the first gear.

[0018] According to the above technical means, the tooth ratio amplifies the angular velocity output when the scroll spring releases energy, which can increase the rotational speed of the transmission rotating shaft, thereby accelerating the retraction of the curtain.

[0019] Optionally, the drive assembly further includes a connecting rod. One end of the connecting rod is connected to the ignition pushing mechanism, and the transmission rotating shaft is rotatably connected to the other end of the connecting rod. The connecting rod is configured to move under the push of the ignition pushing mechanism and drive the transmission rotating shaft to move axially.

[0020] The fourth gear has a notch, and the connecting rod has a limiting portion. In the first state, the limiting portion is located within the notch, and in the second state, the limiting portion disengages from the notch.

[0021] According to the above technical means, in normal circumstances, the limiting portion cooperates with the notch to limit the position of the fourth gear, prevent the fourth gear from rotating, and maintain the elastic potential energy pre-stored in the scroll spring. Through the design of the notch, after the limiting portion disengages from the notch, the fourth gear can quickly mesh with the second gear, and the notch has no impact on the meshing transmission between the fourth gear and the second gear.

[0022] Optionally, the drive assembly further includes a base and a cover plate. The scroll spring is connected to the base and is located within the base and the cover plate.

[0023] The fourth gear includes a gear portion and a shaft portion. The shaft portion passes through a first through hole on the cover plate and is connected to the scroll spring.

[0024] According to the above technical means, the scroll spring is arranged within the base and the cover plate, which can effectively prevent dust, moisture, foreign objects, etc. from affecting the scroll spring.

[0025] Optionally, the ignition pushing mechanism includes an ignition seat, an ignition element, and a push rod. The ignition seat is connected to the ignition element, and the ignition seat and the ignition element enclose a chamber.

[0026] The push rod is movably connected to the ignition seat. The push rod includes a piston portion, and the piston portion is located within the chamber. The ignition seat is provided with a through hole for the push rod to pass through.

[0027] According to the above technical means, the ignition seat and the ignition element enclose a chamber, and the piston portion of the push rod is arranged within the chamber, with a compact structure.

[0028] In a second aspect, an embodiment of the present application provides a vehicle, including a curtain and the in-vehicle curtain storage device as described above.

[0029] Optionally, the vehicle includes an airbag electronic control unit, which is electrically connected to the ignition propulsion mechanism and the driving component in the vehicle-mounted curtain storage device. The airbag electronic control unit is configured to control the ignition propulsion mechanism to start when the vehicle collides and the curtain in the vehicle-mounted curtain storage device unfolds.

[0030] According to the above technical means, when a collision accident occurs, the ignition propulsion mechanism can be accurately triggered to start, so that the driving component switches from the first state to the second state, and the energy storage component performs the driving function to quickly retract the curtain. Description of the Drawings

[0031] Figure 1 Structural schematic diagram of the vehicle-mounted curtain storage device provided by the embodiment of the present application;

[0032] Figure 2 Structural schematic diagram of the driving component, the connecting seat and the first connecting rod in the vehicle-mounted curtain storage device provided by the embodiment of the present application in the first state;

[0033] Figure 3 Structural schematic diagram of the driving component, the connecting seat and the first connecting rod in the vehicle-mounted curtain storage device provided by the embodiment of the present application in the second state;

[0034] Figure 4 Structural schematic diagram of the driving component in the vehicle-mounted curtain storage device provided by the embodiment of the present application;

[0035] Figure 5 Structural schematic diagram of the transmission rotating shaft, the first gear and the second gear in the vehicle-mounted curtain storage device provided by the embodiment of the present application;

[0036] Figure 6 Overall schematic diagram of the energy storage component in the vehicle-mounted curtain storage device provided by the embodiment of the present application;

[0037] Figure 7 Explosion schematic diagram of the energy storage component in the vehicle-mounted curtain storage device provided by the embodiment of the present application;

[0038] Figure 8 Three-dimensional structural schematic diagram of the base in the vehicle-mounted curtain storage device provided by the embodiment of the present application;

[0039] Figure 9 Back-side structural schematic diagram of the base in the vehicle-mounted curtain storage device provided by the embodiment of the present application;

[0040] Figure 10 Structural schematic diagram of the volute spring in the vehicle-mounted curtain storage device provided by the embodiment of the present application;

[0041] Figure 11Schematic diagram of the cover plate in the in-vehicle curtain storage device provided by the embodiment of the present application;

[0042] Figure 12 Schematic diagram of the fourth gear in the in-vehicle curtain storage device provided by the embodiment of the present application;

[0043] Figure 13 Schematic diagram of the first pin in the in-vehicle curtain storage device provided by the embodiment of the present application;

[0044] Figure 14 Schematic diagram of the connecting rod in the in-vehicle curtain storage device provided by the embodiment of the present application;

[0045] Figure 15 Explosion diagram of the ignition pushing mechanism in the in-vehicle curtain storage device provided by the embodiment of the present application;

[0046] Figure 16 Schematic diagram of the ignition seat in the in-vehicle curtain storage device provided by the embodiment of the present application;

[0047] Figure 17 Side view schematic diagram of the ignition pushing mechanism in the in-vehicle curtain storage device provided by the embodiment of the present application;

[0048] Figure 18 For Figure 17 Cross-sectional view taken along line A-A in

[0049] Figure 19 Schematic diagram of the connection seat in the in-vehicle curtain storage device provided by the embodiment of the present application.

[0050] Explanation of reference numerals:

[0051] 1 - Ignition pushing mechanism, 11 - Ignition seat, 111 - Through hole, 112 - Connecting plate, 113 - Tube body, 12 - Ignition part, 13 - Push rod, 131 - Piston part, 132 - Main rod section, 133 - Matching section, 134 - End section, 14 - Chamber,

[0052] 2 - Energy storage component, 21 - Volute spring, 211 - First connection end, 212 - Second connection end, 22 - Fourth gear, 221 - Gear part, 222 - Shaft part, 223 - Notch, 224 - First card slot, 23 - Base, 231 - Accommodation cavity, 232 - Third card slot, 233 - Second through hole, 24 - Cover plate, 241 - First through hole, 25 - First pin,

[0053] 3 - Transmission mechanism, 31 - Transmission rotating shaft, 311 - First shaft section, 312 - Rib, 313 - Second shaft section, 314 - Third shaft section, 315 - Upset part, 32 - First gear, 33 - Second gear,

[0054] 4 - Third gear,

[0055] 5 - Connecting rod, 51 - Limiting part, 52 - Mounting hole, 53 - Second card slot,

[0056] 6 - Deployment and retraction assembly, 61 - First connecting rod, 62 - Second connecting rod, 63 - Connecting seat, 631 - Axle hole, 632 - Rib groove,

[0057] 7 - Curtain,

[0058] 8 - Housing. Specific embodiments

[0059] In order to make the technical problems, technical solutions and beneficial effects solved by the present application clearer, the present application will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0060] In the related art, an electric motor is usually used to drive a link assembly to realize the deployment and retraction of a curtain. However, the time required for the curtain to retract is relatively long. In the event of a vehicle collision accident, the curtain cannot be quickly retracted, resulting in the vehicle occupants being easily injured by hitting the curtain. In addition, the curtain that cannot be quickly retracted is easily broken when subjected to an external force, and the broken parts may cause secondary injuries to the vehicle occupants. To solve the above problems, the embodiments of the present application provide a vehicle-mounted curtain storage device and a vehicle, and the vehicle-mounted curtain storage device and the vehicle mentioned above will be specifically described below.

[0061] Referring to Figures 1 to 3 , the vehicle-mounted curtain storage device provided by the embodiments of the present application includes a deployment and retraction assembly 6 and a driving assembly. The driving assembly includes a driving component, an energy storage component and an ignition propulsion mechanism 1; the driving assembly has a first state and a second state, and the ignition propulsion mechanism 1 is used to switch the driving assembly from the first state to the second state; in the first state, the deployment and retraction assembly 6 is driven by the driving component to deploy or retract the curtain 7, and in the second state, the deployment and retraction assembly 6 is driven by the energy storage component to retract the curtain 7.

[0062] Among them, the vehicle-mounted curtain storage device is applied to a vehicle, and the curtain is specifically a vehicle-mounted laser curtain. The deployment and retraction assembly 6 can be a link-type deployment and retraction assembly, a scissor-type deployment and retraction assembly, a push-pull type deployment and retraction assembly, etc. The driving component and the energy storage component can be used to apply a rotational force or a linear force to the deployment and retraction assembly 6. The driving component can be an electric motor, an electric push rod, a cylinder, etc., and the energy storage component is used to pre-store elastic potential energy. The energy storage component can be a helical spring, a volute spring, etc.

[0063] As an example, the driving component is used to apply a forward rotational force or a reverse rotational force to the unfolding and retracting assembly 6 to unfold or retract the curtain 7, and the energy storage component is used to apply a reverse rotational force to the unfolding and retracting assembly 6 to retract the curtain 7 by the unfolding and retracting assembly 6. The driving component is a motor, and the energy storage component is a volute spring. The driving assembly can be flexibly adapted to different unfolding and retracting assemblies 6 under rotational driving requirements. For example, the unfolding and retracting assembly 6 is a link-type unfolding and retracting assembly.

[0064] The driving assemblies correspond to the unfolding and retracting assemblies 6 one by one, and the number of the unfolding and retracting assemblies 6 can be one or two. When the number of the unfolding and retracting assemblies 6 is two, the number of the driving assemblies correspondingly is two, and the two driving assemblies are respectively located at Figure 1 the two B positions shown.

[0065] The ignition and propulsion mechanism 1 outputs a propulsion force based on the chemical reaction of gunpowder. The ignition and propulsion mechanism 1 is started under the trigger of an electrical signal. After starting, a chemical reaction of gunpowder occurs, and high-temperature and high-pressure gas is released. The high-temperature and high-pressure gas pushes the output component in the ignition and propulsion mechanism 1, such as a push rod, to output a propulsion force.

[0066] The unfolding and retracting assembly 6 includes a first link 61 and a second link 62 hinged to the first link 61. One end of the second link 62 away from the first link 61 is connected to the bottom end of the curtain 7. When the curtain 7 is unfolded, the included angle between the first link 61 and the second link 62 is a first included angle. When the curtain 7 is retracted, the included angle between the first link 61 and the second link 62 is a second included angle, and the first included angle is greater than the second included angle.

[0067] The vehicle-mounted curtain storage device further includes a housing 8, and the driving assembly is arranged on the housing 8. A rotating shaft can be arranged on the housing 8, and the top end of the curtain 7 is connected to the rotating shaft. When the curtain 7 is retracted, the curtain 7 is wound around the rotating shaft. The rotating shaft is further connected with an elastic resetting member, and the elastic resetting member is used to provide a rewinding moment during the process that the unfolding and retracting assembly 6 retracts the curtain 7, so that the curtain 7 can be smoothly wound around the rotating shaft. The elastic resetting member can be a volute spring, a coil spring, etc.

[0068] Under normal circumstances, such as when the vehicle is driving normally or parking normally, the driving assembly is in a first state, and the driving component normally drives the unfolding and retracting assembly 6 to normally unfold or retract the curtain 7. The ignition and propulsion mechanism 1 is electrically connected to the airbag electronic control unit of the vehicle, and the airbag electronic control unit is used to trigger the ignition and propulsion mechanism 1 to start when the vehicle collides and the curtain 7 is unfolded. After the ignition and propulsion mechanism 1 is triggered and started, the driving assembly is switched from the first state to the second state, and the energy storage component releases the pre-stored elastic potential energy to drive the unfolding and retracting assembly 6 to retract the curtain 7 by the unfolding and retracting assembly 6.

[0069] In this embodiment, when a vehicle collision occurs and the curtain 7 is deployed, the ignition and propulsion mechanism 1 is triggered and activated, prompting the drive assembly to quickly switch from the first state to the second state. The energy storage component immediately releases the pre-stored energy to drive the deployment and retraction assembly 6, causing the deployment and retraction assembly 6 to quickly retract the curtain 7. In summary, when a vehicle collision occurs and the curtain 7 is deployed, the in-vehicle curtain storage device can quickly retract the curtain 7, thereby preventing the vehicle occupants from easily hitting the curtain and getting injured due to the inability to quickly retract the curtain, and avoiding secondary injuries to the vehicle occupants caused by the damaged components resulting from the breakage of the curtain that cannot be quickly retracted. In addition, the drive assembly has strong versatility and can be flexibly adapted to different forms of deployment and retraction assemblies 6 under the same drive requirements.

[0070] In some embodiments, referring to Figures 2 to 4 , the drive assembly further includes a transmission rotating shaft 31, which is inserted into the deployment and retraction assembly 6. In the first state, the drive component is in transmission connection with the transmission rotating shaft 31 to drive the deployment and retraction assembly 6. In the second state, the energy storage component is in transmission connection with the transmission rotating shaft 31 to drive the deployment and retraction assembly 6; the ignition and propulsion mechanism 1 is used to move the transmission rotating shaft 31 axially or move the drive component and the energy storage component along the axial direction of the transmission rotating shaft 31, so that the drive assembly switches from the first state to the second state.

[0071] Among them, the deployment and retraction assembly 6 further includes a connection seat 63 connected to the first link 61, and the transmission rotating shaft 31 is inserted into the connection seat 63. The rotation of the transmission rotating shaft 31 drives the rotation of the connection seat 63, thereby driving the rotation of the first link 61 to realize the deployment or retraction of the curtain 7. Referring to Figure 4 and Figure 5 , the transmission rotating shaft 31 includes a first shaft section 311. Referring to Figure 19 , a shaft hole 631 is formed in the connection seat 63, and the shaft hole 631 cooperates with the first shaft section 311. Referring to Figure 4 and Figure 5 , a rib 312 is provided on the first shaft section 311. Referring to Figure 19 , a rib groove 632 is further formed in the connection seat 63, and the rib groove 632 cooperates with the rib 312 to enable the connection seat 63 to rotate with the transmission rotating shaft 31. In other embodiments, the connection seat 63 can also be rotated with the transmission rotating shaft 31 through structures such as flat keys.

[0072] As an example, the ignition and propulsion mechanism 1 realizes the state switching of the drive assembly by moving the transmission rotating shaft 31. As another example, the ignition and propulsion mechanism 1 realizes the state switching of the drive assembly by moving the drive component and the energy storage component. In this embodiment, the transmission rotating shaft 31 can output a rotational force to the deployment and retraction assembly 6, and the state switching of the drive assembly can be realized by moving the transmission rotating shaft 31 or the drive component and the energy storage component, which is beneficial to the compactness of the structure.

[0073] In some embodiments, reference Figures 2 to 4 The ignition push mechanism 1 is used to move the transmission shaft 31 axially. The transmission shaft 31 is provided with a first transmission member and a second transmission member. The driving member is connected to a third transmission member, and the energy storage member is connected to a fourth transmission member. In the first state, the third transmission member is engaged with the first transmission member, and the fourth transmission member is not engaged with the second transmission member. In the second state, the fourth transmission member is discontinuously engaged or continuously engaged with the second transmission member, and the third transmission member is not engaged with the first transmission member.

[0074] When the ignition push mechanism 1 causes the transmission shaft 31 to move axially, the transmission shaft 31 moves toward the fourth transmission member. The moving direction of the transmission shaft 31 can be referred to as Figure 2 The direction indicated by the arrow C in the figure. In the first state, during the switching from the first state to the second state, and in the second state, the transmission shaft 31 remains plugged with the unfolding and stowing assembly 6. As an example, in the second state, the fourth transmission member is discontinuously engaged with the second transmission member. In the second state, the fourth transmission member is driven to rotate by the energy storage component, and is engaged with the second transmission member during the rotation process, thereby driving the transmission shaft 31 to rotate, and then driving the unfolding and stowing assembly 6 to move.

[0075] In this embodiment, the transmission connection between the driving component and the transmission shaft 31 is achieved by the engagement of the third transmission component with the first transmission component, and the transmission connection between the energy storage component and the transmission shaft 31 is achieved by the discontinuous engagement or continuous engagement of the fourth transmission component with the second transmission component. The transmission ratio of the third transmission component to the first transmission component and the transmission ratio of the fourth transmission component to the second transmission component can be independently set to meet the needs of normal folding and unfolding of the curtain 7 under daily circumstances, and rapid folding of the curtain 7 in the event of a collision.

[0076] In other embodiments, only one transmission member may be provided on the transmission shaft 31 , and in the first state, the transmission member is meshed with the third transmission member, and in the second state, the transmission member is discontinuously meshed or continuously meshed with the fourth transmission member.

[0077] In some embodiments, reference Figures 2 to 4 , the second transmission member is the second gear 33, the fourth transmission member is the fourth gear 22, and the energy storage component is the volute spring 21. In this embodiment, the energy storage component is connected to the transmission shaft 31 through the fourth gear 22 and the second gear 33, and the structure is compact and occupies less space. The volute spring 21 stores energy reliably and has high cost performance.

[0078] In some embodiments, reference Figures 2 to 4, the first transmission member is the first gear 32, and the third transmission member is the third gear 4. Among them, the transmission rotating shaft 31, the first gear 32, and the second gear 33 form a transmission mechanism 3. In this embodiment, the driving component is connected to the transmission rotating shaft 31 through the third gear 4 and the first gear 32, with a compact structure and less occupied space.

[0079] In some embodiments, referring to Figures 2 to 4 , the ratio of the number of teeth of the fourth gear 22 to the number of teeth of the second gear 33 is greater than three and greater than the ratio of the number of teeth of the third gear 4 to the number of teeth of the first gear 32. Among them, the ratio of the number of teeth of the fourth gear 22 to the number of teeth of the second gear 33 can be greater than or equal to five and less than or equal to ten. For example, the ratio of the number of teeth of the fourth gear 22 to the number of teeth of the second gear 33 can be six. In this embodiment, the ratio of the number of teeth of the fourth gear 22 to the number of teeth of the second gear 33 is greater than three, and this tooth ratio amplifies the angular velocity output when the scroll spring 21 releases energy, which can increase the rotational speed of the transmission rotating shaft 31, thereby being able to speed up the retraction of the curtain 7.

[0080] In some embodiments, referring to Figures 2 to 4 , the driving assembly further includes a connecting rod 5. One end of the connecting rod 5 is connected to the ignition pushing mechanism 1, and the transmission rotating shaft 31 is rotatably connected to the other end of the connecting rod 5. The connecting rod 5 is used to move under the push of the ignition pushing mechanism 1 and drive the transmission rotating shaft 31 to move axially; the fourth gear 22 has a notch 223, and the connecting rod 5 has a limiting portion 51. In the first state, the limiting portion 51 is located within the notch 223, and in the second state, the limiting portion 51 disengages from the notch 223.

[0081] Among them, the connecting rod 5 does not rotate, and the transmission rotating shaft 31 can rotate relative to the connecting rod 5. Referring to Figure 5 , the transmission rotating shaft 31 includes a second shaft section 313 and a third shaft section 314 connected to the first shaft section 311. The first gear 32 is arranged on the second shaft section 313, and the second gear 33 is arranged on the third shaft section 314. Referring to Figure 14 , the connecting rod 5 is provided with a mounting hole 52, and the mounting hole 52 cooperates with the third shaft section 314. An axial limiting structure is provided on the transmission rotating shaft 31 to realize the axial limitation of the connecting rod 5 along the transmission rotating shaft 31 and prevent the connecting rod 5 from generating axial relative displacement with the transmission rotating shaft 31. The axial limiting structure can be a thickened portion 315, which is formed by thickening one end of the third shaft section 314 away from the second shaft section 313, and the connecting rod 5 is located between the second gear 33 and the thickened portion 315. The axial limiting structure can also be a second pin inserted on the transmission rotating shaft 31.

[0082] Referring to Figure 15 , the ignition pushing mechanism 1 includes a push rod 13, and the connecting rod 5 is connected to the push rod 13. As an example, referring to Figure 17, the push rod 13 includes a main rod section 132, a mating section 133, and an end section 134 arranged in sequence. The cross-sectional shape of the push rod 13 is circular. The diameter of the mating section 133 is smaller than that of the main rod section 132 and smaller than that of the end section 134. Refer to Figure 14 , a second card slot 53 is formed on the connecting rod 5. The second card slot 53 is stuck on the mating section 133. The connecting rod 5 is located between the main rod section 132 and the end section 134. As another example, the connecting rod 5 is fixedly connected to the push rod 13. For example, welding, bonding, etc.

[0083] Refer to Figure 2 , under normal circumstances, the drive assembly is in the first state. The limiting portion 51 cooperates with the notch 223 to limit the position of the fourth gear 22, prevent the fourth gear 22 from rotating, and maintain the elastic potential energy stored in advance by the scroll spring 21. When the vehicle collides and the curtain 7 unfolds, refer to Figure 3 , the drive assembly switches to the second state. The limiting portion 51 disengages from the notch 223, and the fourth gear 22 rotates and meshes with the second gear 33 discontinuously. Through the design of the notch 223, after the limiting portion 51 disengages from the notch 223, the fourth gear 22 can be quickly meshed with the second gear 33, and the notch 223 has no influence on the meshing transmission between the fourth gear 22 and the second gear 33.

[0084] In some embodiments, refer to Figures 6 to 12 , the drive assembly further includes a base 23 and a cover plate 24. The scroll spring 21 is connected to the base 23 and is located inside the base 23 and the cover plate 24. The fourth gear 22 includes a gear portion 221 and a shaft portion 222. The shaft portion 222 passes through the first through hole 241 on the cover plate 24 and is connected to the scroll spring 21.

[0085] Among them, the cover plate 24 is connected to the base 23, and the connection method can be snap connection, welding, bonding, etc. The base 23 has a receiving cavity 231, and the scroll spring 21 is located inside the receiving cavity 231. The scroll spring 21 has a first connection end 211 and a second connection end 212. A third card slot 232 is formed on the base 23, and the second connection end 212 is stuck in the third card slot 232. A first card slot 224 is formed on the shaft portion 222, and the first connection end 211 is stuck in the first card slot 224. The shaft portion 222 also passes through the second through hole 233 on the base 23. A shaft pin hole is formed at one end of the shaft portion 222 away from the gear portion 221, and a Figure 13 shown first shaft pin 25 is inserted into the shaft pin hole. The first shaft pin 25 is located on the side of the base 23 away from the cover plate 24.

[0086] During assembly, first install the scroll spring 21 into the base 23, then connect the cover plate 24 to the base 23. After that, pass the shaft portion 222 of the fourth gear 22 through the first through hole 241 on the cover plate 24 and extend it into the base 23. During the process of the shaft portion 222 extending into the base 23, the first connection end 211 is stuck in the first card slot 224. Then, continue to pass the shaft portion 222 through the second through hole 233 on the base 23. After that, insert the first shaft pin 25 into the shaft pin hole on the shaft portion 222 to complete the assembly.

[0087] After the assembly is completed, the scroll spring 21, the fourth gear 22, the base 23, the cover plate 24 and the first shaft pin 25 form an energy storage assembly 2. The base 23 in the energy storage assembly 2 is detachably connected to the housing 8, for example, by bolt connection, snap connection, etc. In this embodiment, the scroll spring 21 is arranged inside the base 23 and the cover plate 24, which can effectively prevent dust, water vapor, foreign objects, etc. from affecting the scroll spring 21.

[0088] In some embodiments, referring to Figures 15 to 18 , the ignition pushing mechanism 1 includes an ignition seat 11, an ignition part 12 and a push rod 13. The ignition seat 11 is connected to the ignition part 12, and the ignition seat 11 and the ignition part 12 enclose a chamber 14; the push rod 13 is movably connected to the ignition seat 11. The push rod 13 includes a piston part 131, and the piston part 131 is located inside the chamber 14. The ignition seat 11 is provided with a through hole 111 for the push rod 13 to pass through.

[0089] Among them, the ignition part 12 is an ignition tube. The ignition part 12 is started under the trigger of an electrical signal. After starting, a gunpowder chemical reaction occurs and high-temperature and high-pressure gas is released inside the chamber 14. The high-temperature and high-pressure gas pushes the piston part 131 of the push rod 13 to move the push rod 13, thereby outputting a driving force. The connection method between the ignition part 12 and the ignition seat 11 can be welding, spinning, threaded connection, etc. A seal needs to be made between the outer periphery of the piston part 131 and the inner wall of the chamber 14. The main rod section 132 of the push rod 13 passes through the through hole 111, and the mating section 133 and the end section 134 of the push rod 13 are located outside the ignition seat 11.

[0090] The ignition seat 11 includes a connecting plate 112 and a tube body 113. The tube body 113 and the ignition part 12 enclose the chamber 14. The connecting plate 112 is detachably connected to the housing 8, for example, by bolt connection or snap connection. The tube body 113 includes a side part and an end plate part. The through hole 111 is opened on the end plate part, and the ignition part 12 is connected to the side part on the side far from the end plate part. When the push rod 13 moves until the piston part 131 contacts the end plate part of the tube body 113, it means that the push rod 13 has moved in place. In this embodiment, the ignition seat 11 and the ignition part 12 enclose the chamber 14, and the piston part 131 of the push rod 13 is arranged inside the chamber 14, with a compact structure.

[0091] The working principle of the above vehicle-mounted curtain storage device is as follows:

[0092] Under normal circumstances, the driving assembly is in the first state, the driving component rotates forward or backward, drives the third gear 4 to rotate forward or backward, the third gear 4 rotates forward or backward to drive the first gear 32 to rotate forward or backward, the transmission rotating shaft 31 rotates forward or backward along with the first gear 32, and the transmission rotating shaft 31 rotates forward or backward to drive the connecting seat 63 to rotate forward or backward, thereby driving the first connecting rod 61 to rotate forward or backward to unfold or retract the curtain 7.

[0093] When the vehicle collides and the curtain 7 is unfolded, the ignition pushing mechanism 1 is activated, causing the push rod 13 to move. The movement of the push rod 13 drives the connecting rod 5 to move, and the movement of the connecting rod 5 drives the transmission rotating shaft 31 to move axially towards the fourth gear 22, causing the driving assembly to switch from the first state to the second state. After the push rod 13 moves in place, that is, after the state of the driving assembly is switched, the volute spring 21 drives the fourth gear 22 to rotate reversely. The reverse rotation of the fourth gear 22 drives the second gear 33 to rotate reversely, and the transmission rotating shaft 31 rotates reversely along with the second gear 33. The reverse rotation of the transmission rotating shaft 31 drives the connecting seat 63 to rotate reversely, thereby driving the first connecting rod 61 to rotate reversely to retract the curtain 7.

[0094] It should be noted that the forward rotation of the gear can be clockwise rotation. At this time, the reverse rotation is counterclockwise rotation. The forward rotation of the gear can also be counterclockwise rotation. At this time, the reverse rotation is clockwise rotation.

[0095] In the related art, an electric motor is usually used to drive the connecting rod assembly to realize the unfolding and retracting actions of the curtain. The time required to open or retract the curtain is about 20 s (seconds). In this embodiment, when the vehicle collides and the curtain 7 is unfolded, the curtain 7 can be retracted within 20 ms (milliseconds).

[0096] The embodiment of the present application also provides a vehicle, including a curtain 7 and the above-mentioned vehicle-mounted curtain storage device. Since the vehicle includes the above-mentioned vehicle-mounted curtain storage device, it also has the beneficial effects of the above-mentioned vehicle-mounted curtain storage device, which will not be elaborated here.

[0097] The vehicle can be a sedan, a commercial vehicle, an off-road vehicle, a sports utility vehicle, etc. The vehicle can be a pure electric vehicle, a fuel vehicle, a hybrid vehicle, etc.

[0098] In some embodiments, the vehicle includes a Supplemental Restraint System Electronic Control Unit (SRS ECU). The SRS ECU is electrically connected to the ignition pushing mechanism 1 and the driving component in the vehicle-mounted curtain storage device. The SRS ECU is used to trigger the ignition pushing mechanism 1 to start when the vehicle collides and the curtain 7 is unfolded.

[0099] Among them, when a vehicle collision occurs and the curtain 7 is deployed, the airbag electronic control unit sends an ignition signal to the ignition driving mechanism 1 to trigger the ignition element 12 in the ignition driving mechanism 1 to start. When a vehicle collision occurs and the curtain 7 is retracted, the airbag electronic control unit does not send an ignition signal to the ignition driving mechanism 1. At this time, the driving component does not change its state.

[0100] The driving component is a motor. When the curtain 7 is deployed and retracted, the position of the output shaft of the motor is different. The driving component is used to send a position feedback signal to the airbag electronic control unit, and the airbag electronic control unit is used to determine whether the curtain 7 is deployed or retracted according to the position feedback signal. For example, when the curtain 7 is retracted, the driving component sends a position feedback signal A to the airbag electronic control unit, and the airbag electronic control unit determines that the curtain 7 is retracted according to the position feedback signal A. When the curtain 7 is deployed, the driving component sends a position feedback signal B to the airbag electronic control unit, and the airbag electronic control unit determines that the curtain 7 is deployed according to the position feedback signal B.

[0101] In this embodiment, when a collision accident occurs, the ignition driving mechanism 1 can be accurately triggered to start, so that the driving component switches from the first state to the second state, and the energy storage component performs the driving function to quickly retract the curtain.

[0102] In this application, unless otherwise clearly defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0103] The terms "first", "second", "third", "fourth", etc. (if any) in this application are used to distinguish similar objects and do not have to be used to describe a specific order or sequence.

[0104] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally represents an "or" relationship between the front and rear associated objects.

[0105] The above are only the preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

1. A vehicle-mounted curtain storage device, characterized in that: It includes an unfolding and stowing assembly and a driving assembly, wherein the driving assembly includes a driving component, an energy storage component and an ignition driving mechanism; The driving assembly has a first state and a second state, and the ignition pushing mechanism is used to switch the driving assembly from the first state to the second state; In the first state, the driving component drives the unfolding and stowing assembly to unfold or stow the curtain, and in the second state, the energy storage component drives the unfolding and stowing assembly to stow the curtain.

2. The vehicle-mounted curtain storage device according to claim 1, characterized in that: The driving assembly further comprises a transmission shaft, the transmission shaft is plugged into the unfolding and stowing assembly, in the first state, the driving component is transmission-connected with the transmission shaft to drive the unfolding and stowing assembly, in the second state, the energy storage component is transmission-connected with the transmission shaft to drive the unfolding and stowing assembly; The ignition push mechanism is used to move the transmission shaft in the axial direction or to move the driving component and the energy storage component in the axial direction of the transmission shaft, so as to switch the driving assembly from the first state to the second state.

3. The vehicle-mounted curtain storage device according to claim 2, characterized in that: The ignition push mechanism is used to move the transmission shaft in the axial direction, the transmission shaft is provided with a first transmission member and a second transmission member, the driving member is connected to a third transmission member, and the energy storage member is connected to a fourth transmission member; In the first state, the third transmission member is engaged with the first transmission member, and the fourth transmission member is not engaged with the second transmission member. In the second state, the fourth transmission member is engaged with the second transmission member, and the third transmission member is not engaged with the first transmission member.

4. The vehicle-mounted curtain storage device according to claim 3, characterized in that: The first transmission member is a first gear, the third transmission member is a third gear, the second transmission member is a second gear, the fourth transmission member is a fourth gear, and the energy storage component is a volute spring.

5. The vehicle-mounted curtain storage device according to claim 4, characterized in that: A ratio of the number of teeth of the fourth gear to the number of teeth of the second gear is greater than three, and greater than a ratio of the number of teeth of the third gear to the number of teeth of the first gear.

6. The vehicle-mounted curtain storage device according to claim 4, characterized in that: The driving assembly further includes a connecting rod, one end of which is connected to the ignition driving mechanism, and the transmission shaft is rotatably connected to the other end of the connecting rod, and the connecting rod is used to move under the push of the ignition driving mechanism and drive the transmission shaft to move axially; The fourth gear has a notch, and the connecting rod has a limiting portion. In the first state, the limiting portion is located in the notch, and in the second state, the limiting portion is separated from the notch.

7. The vehicle-mounted curtain storage device according to claim 4, characterized in that: The driving assembly further comprises a base and a cover plate, wherein the scroll spring is connected to the base and is located inside the base and the cover plate; The fourth gear includes a gear portion and a shaft portion, and the shaft portion passes through a first through hole on the cover plate and is connected to the spiral spring.

8. The vehicle-mounted screen storage device according to any one of claims 1 to 7, characterized in that: The ignition push mechanism comprises an ignition seat, an ignition piece and a push rod, wherein the ignition seat is connected to the ignition piece, and the ignition seat and the ignition piece form a chamber; The push rod is movably connected to the ignition seat. The push rod comprises a piston portion. The piston portion is located in the chamber. The ignition seat is provided with a through hole for the push rod to pass through.

9. A vehicle, characterized in that: It comprises a screen and the vehicle-mounted screen storage device according to any one of claims 1 to 8.

10. The vehicle according to claim 9, characterized in that The vehicle includes an airbag electronic control unit, which is electrically connected to an ignition push mechanism and a driving component of the vehicle-mounted curtain storage device. The airbag electronic control unit is used to control the ignition push mechanism to start when the vehicle collides and the curtain is unfolded.

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