Vehicle-mounted curtain storage device and vehicle

Abstract

The embodiment of the utility model 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] This application relates to the field of vehicle technology, and in particular to a vehicle-mounted screen storage device and a vehicle. Background Technology

[0002] A car screen is a display device inside a vehicle, typically used in conjunction with a car projection system. Car screens are widely used in scenarios such as in-car movie viewing and business presentations, greatly enriching the consumer's driving experience.

[0003] In related technologies, a motor-driven linkage assembly is typically used to unfold and retract the curtain. However, the curtain takes a long time to retract, and in the event of a vehicle collision, the curtain cannot be retracted quickly enough, making it easy for occupants to be injured by hitting the curtain. Furthermore, a curtain that cannot be retracted quickly is prone to breakage under external force, and the resulting broken parts may cause secondary injuries to occupants. Utility Model Content

[0004] This application provides a vehicle-mounted screen storage device and a vehicle, aiming to improve the problem that the screen cannot be quickly retracted when a vehicle is involved in a collision.

[0005] In a first aspect, embodiments of this application provide a vehicle screen storage device, including an unfolding and retracting assembly and a driving assembly, wherein the driving assembly includes a driving component, an energy storage component and an ignition and pushing mechanism;

[0006] The drive component has a first state and a second state, and the ignition push mechanism is used to switch the drive component from the first state to the second state.

[0007] In the first state, the drive component drives the unfolding and retracting assembly to unfold or retract the curtain. In the second state, the energy storage component drives the unfolding and retracting assembly to retract the curtain.

[0008] According to the aforementioned technical means, when a vehicle collision occurs and the curtain is unfolded, the ignition push mechanism is triggered, causing the drive component to quickly switch from the first state to the second state. The energy storage component immediately releases the pre-stored energy, driving the unfolding and retracting component to quickly retract the curtain. In summary, this vehicle-mounted curtain storage device can quickly retract the curtain when a vehicle collision occurs and the curtain is unfolded, thereby avoiding injuries to occupants from the curtain being unable to retract quickly, and preventing secondary injuries to occupants from broken parts caused by a curtain that cannot be retracted quickly. Furthermore, the drive component is highly versatile and can be flexibly adapted to different types of unfolding and retracting components for the same driving requirements.

[0009] Optionally, the drive assembly further includes a transmission shaft, which is inserted into the unfolding and retracting assembly. In the first state, the drive component is driven by the transmission shaft to drive the unfolding and retracting assembly. In the second state, the energy storage component is driven by the transmission shaft to drive the unfolding and retracting assembly.

[0010] The ignition push mechanism is used to move the transmission shaft axially or to move the drive component and the energy storage component axially along the transmission shaft, so that the drive assembly switches from the first state to the second state.

[0011] According to the above-mentioned technical means, the rotational force can be output to the unfolding and retracting components through the transmission shaft. Furthermore, the state switching of the drive components can be realized through the movement of the transmission shaft or the drive components and energy storage components, which is beneficial to the compactness of the structure.

[0012] Optionally, the ignition push mechanism is used to move the transmission shaft axially, the transmission shaft is provided with a first transmission component and a second transmission component, the drive component is connected to a third transmission component, and the energy storage component is connected to a fourth transmission component.

[0013] 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.

[0014] Based on the above technical means, the transmission ratio between the third transmission component and the first transmission component, and the transmission ratio between the fourth transmission component and the second transmission component, can be set independently to adapt to the needs of normally retracting and unfolding the curtain under normal circumstances, and quickly retracting the curtain in the event of a collision.

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

[0016] Based on the aforementioned technical means, the energy storage component is connected to the transmission shaft via a fourth transmission component and a second gear, resulting in a compact structure and small footprint; the spiral spring provides reliable energy storage and offers high cost-effectiveness. The drive component is connected to the transmission shaft via a third gear and a first gear, also resulting in a compact structure and small footprint.

[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 is greater than the ratio of the number of teeth of the third gear to the number of teeth of the first gear.

[0018] Based on the aforementioned technical means, this gear ratio amplifies the angular velocity output when the spiral spring releases energy, which can increase the rotational speed of the transmission shaft, thereby accelerating the retraction of the curtain.

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

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

[0021] According to the above technical means, under normal circumstances, the limiting part and the notch cooperate to restrict the position of the fourth gear, prevent the fourth gear from rotating, and maintain the elastic potential energy pre-stored by the spiral spring; through the design of the notch, after the limiting part disengages from the notch, the fourth gear can quickly mesh with the second gear, and the notch has no effect on the meshing transmission of the fourth gear and the second gear.

[0022] Optionally, the drive assembly further includes a base and a cover plate, wherein the spiral 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 passing through a first through hole in the cover plate and connected to the spiral spring.

[0024] Based on the above technical means, the spiral spring is arranged inside the base and cover plate, which can effectively prevent dust, water vapor, foreign objects and other substances from affecting the spiral spring.

[0025] Optionally, the ignition pushing mechanism includes an ignition base, an ignition element, and a push rod, wherein the ignition base is connected to the ignition element, and the ignition base and the ignition element form a cavity;

[0026] The push rod is movably connected to the ignition base. The push rod includes a piston portion located in the chamber. The ignition base has a through hole for the push rod to pass through.

[0027] Based on the above technical means, the ignition base and the ignition element form a cavity, and the piston part of the push rod is arranged in the cavity, resulting in a compact structure.

[0028] Secondly, embodiments of this application provide a vehicle, including a screen and a vehicle-mounted screen storage device as described above.

[0029] Optionally, the vehicle includes an airbag control unit, which is electrically connected to the ignition push mechanism and drive component in the vehicle curtain storage device. The airbag control unit is used to control the ignition push mechanism to start when the vehicle collides and the curtain in the vehicle curtain storage device is unfolded.

[0030] Based on the above-mentioned technical means, the ignition push mechanism can be accurately triggered to start when a collision occurs, thereby switching the drive component from the first state to the second state, and the energy storage component performs the drive function to quickly retract the curtain. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the vehicle screen storage device provided in the embodiments of this application;

[0032] Figure 2 A schematic diagram of the drive assembly, connecting seat, and first connecting rod in the first state of the vehicle screen storage device provided in the embodiments of this application;

[0033] Figure 3 A schematic diagram of the drive assembly, connecting seat, and first link in the second state of the vehicle screen storage device provided in this application embodiment;

[0034] Figure 4 This is a schematic diagram of the drive component in the vehicle screen storage device provided in the embodiments of this application;

[0035] Figure 5 A schematic diagram of the transmission shaft, the first gear, and the second gear in the vehicle screen storage device provided in the embodiments of this application;

[0036] Figure 6 A schematic diagram of the energy storage component in the vehicle screen storage device provided in this application embodiment;

[0037] Figure 7 An exploded view of the energy storage component in the vehicle-mounted screen storage device provided in the embodiments of this application;

[0038] Figure 8 A three-dimensional structural diagram of the base in the vehicle screen storage device provided in the embodiments of this application;

[0039] Figure 9 A schematic diagram of the back structure of the base in the vehicle screen storage device provided in this application embodiment;

[0040] Figure 10 A schematic diagram of the spiral spring in the vehicle screen storage device provided in this application embodiment;

[0041] Figure 11This is a schematic diagram of the structure of the cover plate in the vehicle screen storage device provided in the embodiments of this application;

[0042] Figure 12 A schematic diagram of the structure of the fourth gear in the vehicle screen storage device provided in the embodiments of this application;

[0043] Figure 13 A schematic diagram of the structure of the first pivot pin in the vehicle screen storage device provided in the embodiments of this application;

[0044] Figure 14 This is a schematic diagram of the connecting rod in the vehicle screen storage device provided in the embodiments of this application;

[0045] Figure 15 An exploded view of the ignition push mechanism in the vehicle-mounted curtain storage device provided in the embodiments of this application;

[0046] Figure 16 This is a schematic diagram of the ignition base in the vehicle screen storage device provided in the embodiments of this application;

[0047] Figure 17 A side view of the ignition push mechanism in the vehicle screen storage device provided in the embodiments of this application;

[0048] Figure 18 for Figure 17 Schematic diagram of the cross section of AA;

[0049] Figure 19 A schematic diagram of the connecting seat in the vehicle screen storage device provided in this application embodiment.

[0050] Explanation of reference numerals in the attached figures:

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

[0052] 2-Energy storage component, 21-Coiled spring, 211-First connecting end, 212-Second connecting end, 22-Fourth gear, 221-Gear section, 222-Shaft section, 223-Notch, 224-First slot, 23-Base, 231-Accommodating cavity, 232-Third slot, 233-Second through hole, 24-Cover plate, 241-First through hole, 25-First shaft pin.

[0053] 3-Transmission mechanism, 31-Transmission shaft, 311-First shaft section, 312-Protruding rib, 313-Second shaft section, 314-Third shaft section, 315-Thickened part, 32-First gear, 33-Second gear

[0054] 4-Third gear,

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

[0056] 6-Expand / Retract assembly, 61-First link, 62-Second link, 63-Connecting seat, 631-Shaft hole, 632-Rib groove,

[0057] 7-Curtain,

[0058] 8-Shell. Detailed Implementation

[0059] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0060] In related technologies, a motor-driven linkage assembly is typically used to achieve the unfolding and retraction of the screen. However, the time required to retract the screen is relatively long. In the event of a vehicle collision, the screen cannot be retracted quickly, making it easy for occupants to be injured by hitting the screen. Furthermore, a screen that cannot be retracted quickly is prone to breakage under external force, and the resulting broken parts may cause secondary injuries to occupants. To solve the above problems, embodiments of this application provide a vehicle-mounted screen storage device and a vehicle, which are described in detail below.

[0061] Reference Figures 1 to 3 The vehicle screen storage device provided in this application embodiment includes an unfolding and retracting assembly 6 and a driving assembly. The driving assembly includes a driving component, an energy storage component, and an ignition pushing mechanism 1. The driving assembly has a first state and a second state. The ignition pushing mechanism 1 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 retracting assembly 6 to unfold or retract the screen 7. In the second state, the energy storage component drives the unfolding and retracting assembly 6 to retract the screen 7.

[0062] This vehicle-mounted screen storage device is used in vehicles, and the screen is specifically a vehicle-mounted laser screen. The unfolding / retracting assembly 6 can be a linkage-type unfolding / retracting assembly, a scissor-type unfolding / retracting assembly, a push-pull unfolding / retracting assembly, etc. The driving component and energy storage component can be used to apply rotational or linear force to the unfolding / retracting assembly 6. The driving component can be a motor, electric actuator, cylinder, etc., and the energy storage component is used to pre-store elastic potential energy; the energy storage component can be a helical spring, spiral spring, etc.

[0063] As an example, the drive component applies a forward or reverse rotational force to the unfolding / retracting assembly 6 to unfold or retract the curtain 7, while the energy storage component applies a reverse rotational force to the unfolding / retracting assembly 6 to retract the curtain 7. The drive component is a motor, and the energy storage component is a spiral spring. The drive component can be flexibly adapted to different unfolding / retracting assemblies 6 to meet different rotational drive requirements; for example, the unfolding / retracting assembly 6 can be a linkage-type unfolding / retracting assembly.

[0064] Each driver component corresponds one-to-one with an expand / collapse component 6. The number of expand / collapse components 6 can be one or two. When there are two expand / collapse components 6, there are correspondingly two driver components, each located in... Figure 1 The two B positions are shown.

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

[0066] The unfolding / retracting assembly 6 includes a first link 61 and a second link 62 hinged to the first link 61. The 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 angle between the first link 61 and the second link 62 is a first angle. When the curtain 7 is retracted, the angle between the first link 61 and the second link 62 is a second angle, and the first angle is greater than the second angle.

[0067] The vehicle-mounted screen retraction device also includes a housing 8, on which a drive assembly is mounted. A pivot may be provided on the housing 8, and the top end of the screen 7 is connected to the pivot. When the screen 7 is retracted, it is wound around the pivot. The pivot is also connected to a spring-loaded return element, which provides a rewinding torque during the unfolding of the retraction assembly 6 to retract the screen 7, ensuring the screen 7 is smoothly wound around the pivot. The spring-loaded return element can be a spiral spring, coil spring, or similar type.

[0068] Under normal circumstances, such as when the vehicle is driving or parked, the drive assembly is in the first state, normally driving the unfolding / retracting assembly 6 to unfold or retract the curtain 7. The ignition push mechanism 1 is electrically connected to the vehicle's airbag control unit. The airbag control unit is used to trigger the ignition push mechanism 1 when a collision occurs and the curtain 7 unfolds. After the ignition push mechanism 1 is triggered, the drive assembly switches from the first state to the second state, and the energy storage component releases the pre-stored elastic potential energy, driving the unfolding / retracting assembly 6 to retract the curtain 7.

[0069] In this embodiment, when a vehicle collision occurs and the curtain 7 is unfolded, the ignition push mechanism 1 is triggered, causing the drive component to quickly switch from the first state to the second state. The energy storage component immediately releases the pre-stored energy, driving the unfolding and retracting component 6 to quickly retract the curtain 7. In summary, this vehicle curtain storage device can quickly retract the curtain 7 when a vehicle collision occurs and the curtain 7 is unfolded, thereby avoiding injuries to occupants from the curtain being unable to be retracted quickly, and preventing secondary injuries to occupants from broken parts caused by the curtain breaking if it cannot be retracted quickly. In addition, the drive component is highly versatile and can be flexibly adapted to different forms of unfolding and retracting components 6 under the same driving requirements.

[0070] In some embodiments, refer to Figures 2 to 4 The drive assembly also includes a transmission shaft 31, which is inserted into the unfolding and retracting assembly 6. In a first state, the drive component is driven by the transmission shaft 31 to drive the unfolding and retracting assembly 6. In a second state, the energy storage component is driven by the transmission shaft 31 to drive the unfolding and retracting assembly 6. The ignition push mechanism 1 is used to move the transmission shaft 31 axially or to move the drive component and the energy storage component axially along the transmission shaft 31, so that the drive assembly switches from the first state to the second state.

[0071] The unfolding / retracting assembly 6 also includes a connecting seat 63 connected to the first connecting rod 61, and a transmission shaft 31 is inserted into the connecting seat 63. Rotation of the transmission shaft 31 drives the connecting seat 63 to rotate, thereby driving the first connecting rod 61 to rotate, thus realizing the unfolding or retraction of the curtain 7. (Refer to...) Figure 4 and Figure 5 The transmission shaft 31 includes a first shaft segment 311, as shown in the reference. Figure 19 The connecting seat 63 has a shaft hole 631, which mates with the first shaft segment 311. (See reference...) Figure 4 and Figure 5 The first shaft segment 311 is provided with a protruding rib 312, as shown in the reference. Figure 19 The connecting seat 63 is also provided with a rib groove 632, which cooperates with the protruding rib 312 to allow the connecting seat 63 to rotate with the transmission shaft 31. In other embodiments, the connecting seat 63 can also be rotated with the transmission shaft 31 by a structure such as a flat key.

[0072] As an example, the ignition drive mechanism 1 achieves state switching of the drive component by moving the transmission shaft 31. As another example, the ignition drive mechanism 1 achieves state switching of the drive component by moving the drive component and the energy storage component. In this embodiment, the transmission shaft 31 can output rotational force to the unfolding and retracting component 6, and the state switching of the drive component can be achieved by moving the transmission shaft 31 or the drive component and the energy storage component, which is beneficial to the compactness of the structure.

[0073] In some embodiments, refer to 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 drive component is connected to a third transmission member, and the energy storage component 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] Specifically, when the ignition push mechanism 1 causes the transmission shaft 31 to move axially, the transmission shaft 31 moves towards the fourth transmission component. The direction of movement of the transmission shaft 31 can be referred to... Figure 2 The direction indicated by arrow C. In the first state, during the transition from the first state to the second state, and in the second state, the transmission shaft 31 remains engaged with the unfolding / retracting assembly 6. As an example, in the second state, the fourth transmission member and the second transmission member are not continuously engaged. In the second state, the fourth transmission member is driven to rotate by the energy storage component and engages with the second transmission member during rotation, thereby driving the transmission shaft 31 to rotate, and thus driving the unfolding / retracting assembly 6 to move.

[0075] In this embodiment, the drive component and the transmission shaft 31 are connected by meshing between the third transmission component and the first transmission component. The energy storage component and the transmission shaft 31 are connected by discontinuous or continuous meshing between the fourth transmission component and the second transmission component. The transmission ratio between the third transmission component and the first transmission component and the transmission ratio between the fourth transmission component and the second transmission component can be set independently to meet the needs of normal unfolding and retracting of the curtain 7 under normal circumstances and rapid unfolding 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. In the first state, the transmission member is engaged with the third transmission member, and in the second state, the transmission member is engaged discontinuously or continuously with the fourth transmission member.

[0077] In some embodiments, refer to Figures 2 to 4 The second transmission component is a second gear 33, the fourth transmission component is a fourth gear 22, and the energy storage component is a spiral spring 21. In this embodiment, the energy storage component and the transmission shaft 31 are connected by the fourth gear 22 and the second gear 33, resulting in a compact structure and small footprint. The spiral spring 21 provides reliable energy storage and offers high cost-effectiveness.

[0078] In some embodiments, refer to Figures 2 to 4The first transmission component is a first gear 32, and the third transmission component is a third gear 4. The transmission shaft 31, the first gear 32, and the second gear 33 together form the transmission mechanism 3. In this embodiment, the driving component is connected to the transmission shaft 31 via the third gear 4 and the first gear 32, resulting in a compact structure and a small footprint.

[0079] In some embodiments, refer 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. Specifically, 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. This tooth ratio amplifies the angular velocity output when the spiral spring 21 releases energy, which can increase the rotational speed of the transmission shaft 31, thereby accelerating the retraction of the curtain 7.

[0080] In some embodiments, refer to Figures 2 to 4 The drive assembly also includes a connecting rod 5, one end of which is connected to the ignition push mechanism 1, and the transmission 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 push mechanism 1 and drive the transmission shaft 31 to move axially. The fourth gear 22 has a notch 223, and the connecting rod 5 has a limiting part 51. In the first state, the limiting part 51 is located in the notch 223, and in the second state, the limiting part 51 is disengaged from the notch 223.

[0081] In this configuration, connecting rod 5 is stationary, while transmission shaft 31 can rotate relative to connecting rod 5. (See reference...) Figure 5 The transmission shaft 31 includes a second shaft section 313 and a third shaft section 314 connected to the first shaft section 311. A first gear 32 is mounted on the second shaft section 313, and a second gear 33 is mounted on the third shaft section 314. (Refer to...) Figure 14 The connecting rod 5 has a mounting hole 52 that mates with the third shaft section 314. An axial limiting structure is provided on the transmission shaft 31 to limit the connecting rod 5 along the axial direction of the transmission shaft 31, preventing relative axial displacement between the connecting rod 5 and the transmission shaft 31. The axial limiting structure can be a thickened portion 315, formed by thickening the end of the third shaft section 314 away from the second shaft section 313, with the connecting rod 5 located between the second gear 33 and the thickened portion 315. Alternatively, the axial limiting structure can be a second pin inserted into the transmission shaft 31.

[0082] Reference Figure 15 The ignition actuator 1 includes a push rod 13, and a connecting rod 5 is connected to the push rod 13. As an example, refer to... Figure 17The push rod 13 includes a main rod section 132, a mating section 133, and an end section 134 arranged sequentially. The cross-sectional shape of the push rod 13 is circular. The diameter of the mating section 133 is smaller than the diameter of the main rod section 132 and smaller than the diameter of the end section 134. (Refer to...) Figure 14 The connecting rod 5 has a second slot 53, which engages with 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, by welding or bonding.

[0083] Reference Figure 2 Under normal circumstances, the drive assembly is in its first state. The limiting part 51 and the notch 223 cooperate to restrict the position of the fourth gear 22, preventing the fourth gear 22 from rotating and maintaining the elastic potential energy pre-stored in the spiral spring 21. When a vehicle collision occurs and the curtain 7 is unfolded, refer to Figure 3 When the drive component switches to the second state, the limiting part 51 disengages from the notch 223, and the fourth gear 22 rotates and discontinuously meshes with the second gear 33. The notch 223 is designed so that after the limiting part 51 disengages from the notch 223, the fourth gear 22 can quickly mesh with the second gear 33, and the notch 223 has no effect 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 also includes a base 23 and a cover plate 24. The spiral 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 a first through hole 241 on the cover plate 24 and is connected to the spiral spring 21.

[0085] The cover plate 24 is connected to the base 23, and the connection method can be snap-fit, welding, or bonding. The base 23 has a receiving cavity 231, and the spiral spring 21 is located in the receiving cavity 231. The spiral spring 21 has a first connecting end 211 and a second connecting end 212. The base 23 has a third slot 232, and the second connecting end 212 is engaged in the third slot 232. The shaft portion 222 has a first slot 224, and the first connecting end 211 is engaged in the first slot 224. The shaft portion 222 also passes through a second through hole 233 on the base 23. The end of the shaft portion 222 away from the gear portion 221 has a shaft pin hole, into which a shaft pin is inserted. Figure 13 The first pivot pin 25 is shown, located on the side of the base 23 away from the cover plate 24.

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

[0087] The assembled spiral spring 21, fourth gear 22, base 23, cover plate 24, and first shaft pin 25 constitute the energy storage assembly 2. The base 23 in the energy storage assembly 2 is detachably connected to the housing 8, for example, by bolts or snap-fit. In this embodiment, the spiral spring 21 is arranged inside the base 23 and cover plate 24, effectively preventing dust, moisture, foreign objects, etc., from affecting the spiral spring 21.

[0088] In some embodiments, refer to Figures 15 to 18 The ignition push mechanism 1 includes an ignition base 11, an ignition element 12, and a push rod 13. The ignition base 11 is connected to the ignition element 12, and the ignition base 11 and the ignition element 12 form a chamber 14. The push rod 13 is movably connected to the ignition base 11. The push rod 13 includes a piston part 131, which is located in the chamber 14. The ignition base 11 has a through hole 111 for the push rod 13 to pass through.

[0089] The ignition element 12 is an ignition tube. It is activated by an electrical signal, triggering a gunpowder chemical reaction and releasing high-temperature, high-pressure gas within the chamber 14. This gas pushes the piston portion 131 of the push rod 13, causing the push rod 13 to move and thus output thrust. The connection between the ignition element 12 and the ignition base 11 can be welding, spinning, or threaded. A seal is required between the outer periphery of the piston portion 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, while the mating section 133 and the end section 134 of the push rod 13 are located outside the ignition base 11.

[0090] The ignition base 11 includes a connecting plate 112 and a tube body 113. The tube body 113 and the ignition element 12 form a chamber 14. The connecting plate 112 is detachably connected to the housing 8, for example, by bolts or snap-fit. The tube body 113 includes a side portion and an end plate portion. A through hole 111 is formed on the end plate portion, and the ignition element 12 is connected to the side portion away from the end plate portion. When the push rod 13 moves until the piston portion 131 contacts the end plate portion of the tube body 113, it indicates that the push rod 13 has moved into place. In this embodiment, the ignition base 11 and the ignition element 12 form a chamber 14, and the piston portion 131 of the push rod 13 is arranged inside the chamber 14, resulting in a compact structure.

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

[0092] Under normal circumstances, the drive component is in the first state, and the drive component operates in the forward or reverse direction, driving the third gear 4 to rotate forward or reverse. The third gear 4 rotates forward or reverse, driving the first gear 32 to rotate forward or reverse. The transmission shaft 31 rotates forward or reverse with the first gear 32. The transmission shaft 31 rotates forward or reverse, driving the connecting seat 63 to rotate forward or reverse, thereby driving the first connecting rod 61 to rotate forward or reverse, so as to unfold or retract the curtain 7.

[0093] When a vehicle collision occurs and the curtain 7 is unfolded, the ignition push 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, which in turn drives the transmission shaft 31 to move axially toward the fourth gear 22, switching the drive assembly from the first state to the second state. After the push rod 13 is in place, that is, after the drive assembly state switch is completed, the spiral spring 21 drives the fourth gear 22 to reverse. The reverse rotation of the fourth gear 22 drives the second gear 33 to reverse, and the transmission shaft 31 reverses along with the second gear 33. The reverse rotation of the transmission shaft 31 drives the connecting seat 63 to reverse, which in turn drives the first connecting rod 61 to reverse, so as to retract the curtain 7.

[0094] It should be noted that the gear can rotate clockwise, and in this case, rotating counterclockwise is counterclockwise. Conversely, the gear can also rotate counterclockwise, and in this case, rotating counterclockwise is clockwise.

[0095] In related technologies, a motor-driven linkage assembly is typically used to achieve the unfolding and retraction of the curtain, with the time required for the curtain to open or retract being approximately 20 seconds. In this embodiment, when a vehicle collision occurs and the curtain 7 is unfolded, the curtain 7 can be retracted within 20 milliseconds.

[0096] This application also provides a vehicle, including a screen 7 and the aforementioned vehicle-mounted screen storage device. Since the vehicle includes the aforementioned vehicle-mounted screen storage device, it also possesses the beneficial effects of the aforementioned vehicle-mounted screen storage device, which will not be elaborated further here.

[0097] The vehicle can be a sedan, commercial vehicle, SUV, sports utility vehicle, etc. It can be a pure electric vehicle, a gasoline-powered vehicle, a hybrid vehicle, etc.

[0098] In some embodiments, the vehicle includes a Supplemental Restraint System Electronic Control Unit (SRS ECU), which is electrically connected to the ignition push mechanism 1 and drive components in the vehicle curtain storage device. The SRS ECU is used to trigger the ignition push mechanism 1 to start when the vehicle is involved in a collision and the curtain 7 is deployed.

[0099] When a vehicle collision occurs and the curtain 7 unfolds, the airbag electronic control unit sends an ignition signal to the ignition actuator 1 to trigger the ignition element 12 in the ignition actuator 1. When a vehicle collision occurs and the curtain 7 retracts, the airbag electronic control unit does not send an ignition signal to the ignition actuator 1, and the drive component does not switch states.

[0100] The driving component is a motor, and the position of the motor's output shaft differs when the curtain 7 is unfolded and retracted. The driving component sends position feedback signals to the airbag control unit, which determines whether the curtain 7 is unfolded or retracted based on these signals. For example, when the curtain 7 is retracted, the driving component sends position feedback signal A to the airbag control unit, which determines that the curtain 7 is retracted based on signal A. When the curtain 7 is unfolded, the driving component sends position feedback signal B to the airbag control unit, which determines that the curtain 7 is unfolded based on signal B.

[0101] In this embodiment, the ignition push mechanism 1 can be accurately triggered to start when a collision occurs, thereby switching the drive component from the first state to the second state, and the energy storage component performs the drive function to quickly retract the curtain.

[0102] In this application, unless otherwise expressly defined, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

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

[0104] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0105] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A curtain storage device for a vehicle, characterized by comprising: The drive assembly comprises a driving component, an energy storage component and an ignition pushing mechanism; The drive assembly has a first state and a second state, and the ignition pushing mechanism is used to switch the drive assembly from the first state to the second state; In the first state, the drive assembly is driven by the driving component to deploy or retract the curtain, and in the second state, the drive assembly is driven by the energy storage component to retract the curtain.

2. The in-vehicle screen storage device according to claim 1, characterized by The drive assembly further comprises a transmission shaft, which is connected to the drive assembly, and in the first state, the driving component is in transmission connection with the transmission shaft to drive the drive assembly, and in the second state, the energy storage component is in transmission connection with the transmission shaft to drive the drive assembly. The ignition pushing mechanism is used to move the transmission shaft in the axial direction or move the driving component and the energy storage component in the axial direction of the transmission shaft to switch the drive assembly from the first state to the second state.

3. The in-vehicle screen storage device according to claim 2, characterized by The ignition pushing mechanism is used to move the transmission shaft in the axial direction, and the transmission shaft is provided with a first transmission member and a second transmission member, the driving component is connected with a third transmission member, and the energy storage component is connected with a fourth transmission member. In the first state, the third transmission member is in engagement with the first transmission member, and the fourth transmission member is not in engagement with the second transmission member, and in the second state, the fourth transmission member is in engagement with the second transmission member, and the third transmission member is not in engagement with the first transmission member.

4. The in-vehicle screen storage device according to claim 3, characterized by 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 in-vehicle screen storage device according to claim 4, characterized by 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 is greater than the ratio of the number of teeth of the third gear to the number of teeth of the first gear.

6. The in-vehicle screen storage device according to claim 4, characterized by The drive assembly further comprises a connecting rod, one end of the connecting rod is connected with the ignition pushing mechanism, and the transmission shaft is rotationally connected to the other end of the connecting rod, and the connecting rod is used to move under the pushing of the ignition pushing mechanism and drive the transmission shaft to move in the axial direction. The fourth gear has a notch, 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 in-vehicle screen storage device according to claim 4, characterized by The drive assembly further comprises a base and a cover plate, the volute spring is connected with the base and located in the base and the cover plate; The fourth gear comprises a gear portion and a shaft portion, and the shaft portion passes through a first through hole on the cover plate and is connected with the volute spring.

8. The in-vehicle screen storage device according to any one of claims 1 to 7, characterized by The ignition pushing mechanism comprises an ignition seat, an ignition member and a push rod, the ignition seat is connected with the ignition member, and the ignition seat and the ignition member form a cavity; The push rod is movably connected to the ignition seat, the push rod comprises a piston portion, the piston portion is located in the cavity, and a through hole is formed in the ignition seat for the push rod to pass through.

9. A vehicle characterized by comprising: The vehicle curtain storage device comprises a curtain and the vehicle curtain storage device according to any one of claims 1 to 8.

10. The vehicle of claim 9, wherein, The vehicle comprises an airbag control unit electrically connected with the ignition pushing mechanism and the driving part of the vehicle curtain storage device, and the airbag control unit is used to control the ignition pushing mechanism to start when the vehicle is in collision and the curtain is unfolded.

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