Screen assembly and vehicle

Abstract

The invention relates to the technical field of vehicles, and provides a screen assembly and a vehicle to at least solve the problem that a display device cannot give consideration to horizontal movement and turnover movement. The screen assembly comprises a lead screw, a display part and a locking mechanism. The locking mechanism has a locking state and an unlocking state. When the locking mechanism is in the locking state, pretightening force exists between the locking mechanism and the lead screw, and the display part can rotate along with the lead screw. When the locking mechanism is in the unlocking state, the pretightening force between the locking mechanism and the lead screw is lost, and the lead screw drives the display part to move in the axial direction of the lead screw. In this way, the same lead screw and the first driving piece are reused to achieve two movement modes. And the adjustment freedom and the use flexibility of the screen are improved. The center of the screen is just aligned with the sight of a passenger, and better watching experience is obtained.

Description

Technical Field

[0001] This application relates to the field of vehicles, and more particularly to a screen assembly and a vehicle. Background Technology

[0002] In vehicles, rear-seat screens have evolved from simple displays into an important component of the smart cockpit, designed to enhance the travel experience for rear passengers.

[0003] In related technologies, in order to balance entertainment and the convenience of passengers getting on and off the vehicle, some vehicles are equipped with ceiling-mounted screens on the roof. The ceiling-mounted screens can rotate relative to the roof, which can effectively accommodate the screens.

[0004] However, existing ceiling-mounted screens only have a rotating function and cannot be moved horizontally, which affects the user experience for drivers and passengers. Summary of the Invention

[0005] To address the aforementioned technical problems, this application provides a screen assembly and a vehicle, thereby at least resolving the issue that display devices cannot simultaneously accommodate horizontal movement and flipping motion.

[0006] In a first aspect, a screen assembly is provided. The screen assembly includes a lead screw, a display element, and a locking mechanism. The display element is driven and connected to the lead screw. The locking mechanism is fixedly connected to the display element. The locking mechanism has a locked state and an unlocked state. When the locking mechanism is in the locked state, there is a preload between the locking mechanism and the lead screw, and the lead screw drives the display element to rotate. When the locking mechanism is in the unlocked state, the preload between the locking mechanism and the lead screw is lost, and the lead screw drives the display element to move along the axial direction of the lead screw.

[0007] The same lead screw and first drive unit are used in a time-division multiplexing manner to achieve two movement modes. When screen flipping is required, the locking mechanism switches to the locked state, generating a preload between it and the lead screw. At this time, the first drive unit drives the lead screw to rotate. Due to the frictional torque generated by the preload, the display element is locked onto the lead screw and rotates synchronously, achieving the flipping action. When horizontal movement of the screen is required, the locking mechanism switches to the unlocked state, releasing the preload between it and the lead screw and releasing the circumferential constraint. At this time, the first drive unit drives the lead screw to rotate again. Since the display element maintains an axial transmission connection with the lead screw but is circumferentially free, the rotation of the lead screw is converted into linear movement of the display element along its axis, while the display element itself does not rotate. This improves the screen's adjustment freedom and usage flexibility, ensuring the screen center is precisely aligned with the passenger's line of sight for a better viewing experience.

[0008] In one possible implementation, the locking mechanism includes a clamping member and a second driving member. The clamping member includes a first clamping portion and a second clamping portion. The second driving member is tractively connected to at least one of the first clamping portion and the second clamping portion, and drives the at least one to move closer to or further away from the other.

[0009] In one possible embodiment, the first clamping portion and the second clamping portion extend circumferentially along the lead screw. One end of the first clamping portion is connected to one end of the second clamping portion, and the other end of the first clamping portion is spaced apart from the other end of the second clamping portion to form an opening.

[0010] In one possible implementation, the clamping member further includes a spaced-apart first extension and a second extension. The first extension is connected to the other end of the first clamping portion and has an extension away from the lead screw. The second extension is connected to the other end of the second clamping portion and has an extension away from the lead screw. A second drive member is connected to at least one of the first and second extensions and is drively connected to the other.

[0011] In one possible implementation, the second drive element includes a motor and a shaft, with the motor and shaft being drively connected. One of the first and second extensions is fixedly connected to the motor, and the other is threadedly connected to the shaft. The shaft can drive the other extension closer to or further away from the first extension to change the distance between the first and second extensions.

[0012] In one possible implementation, the second driving member includes an electromagnetic element and a magnetizing element. The electromagnetic element is connected to one of the first extension and the second extension, and the magnetizing element is connected to the other of the first extension and the second extension. Along the spacing direction between the first extension and the second extension, the magnetizing element and the electromagnetic element are disposed opposite to each other, and energizing the electromagnetic element can generate an attractive force on the magnetizing element.

[0013] In one possible implementation, the screen assembly further includes a sliding nut connected to the display element and sleeved on a lead screw, the sliding nut being drive-connected to the lead screw.

[0014] In one possible implementation, the display element includes a mounting hole through which a lead screw passes. Multiple sliding nuts are located within the mounting hole and arranged axially along the lead screw.

[0015] In one possible implementation, the screen assembly further includes a first support member and a second support member spaced apart along the axial direction of the lead screw, with the lead screw located between the first and second support members. The lead screw is rotatably connected to both the first and second support members. The screen assembly also includes a first drive member disposed on either the first or second support member. Furthermore, the screen assembly includes a damping member disposed between the first drive member and the lead screw, and is drively connected to both the first drive member and the lead screw.

[0016] In a second aspect, a vehicle is provided, including a screen assembly provided in any possible embodiment of the first aspect.

[0017] It should be noted that the technical effects of any implementation method in the second aspect can be found in the technical effects of the corresponding implementation method in the first aspect, and will not be repeated here. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is one of the structural schematic diagrams of a screen assembly provided in an embodiment of this application; Figure 2 This is a second schematic diagram of the structure of a screen assembly provided in an embodiment of this application; Figure 3 This is a schematic diagram of a locking mechanism provided in an embodiment of this application; Figure 4 This is a schematic diagram of another locking mechanism provided in an embodiment of this application; Figure 5 A schematic diagram of another locking mechanism provided in the embodiments of this application; Figure 6 This is a partial cross-sectional schematic diagram of a screen assembly provided in an embodiment of this application.

[0021] Explanation of reference numerals in the attached figures: 1. Lead screw; 2. First drive component; 3. Display component; 31. Mounting hole; 4. Locking mechanism; 41. Clamping component; 411. First clamping part; 412. Second clamping part; 413. First extension part; 414. Second extension part; 42. Second drive component; 421. Motor; 422. Rotating shaft; 423. Electromagnetic component; 424. Magnetizing component; 5. Sliding nut; 6. First support component; 7. Second support component; 8. Damping component. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0025] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0026] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] In the description of the embodiments 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, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0028] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0029] The present application will now be described in detail. Before describing the embodiments of the present application, the logic behind the technical problem arising from the present application will be explained first.

[0030] When using display devices, occupants on either side of the device need to maintain a head-turning posture for extended periods. Maintaining the same posture for too long can cause discomfort. Therefore, there is a need for a display device that can move along the width of the vehicle.

[0031] The embodiments of this application are described below.

[0032] This application provides a vehicle that includes a screen assembly.

[0033] This application also provides a vehicle, which can be a gasoline-powered vehicle, an electric vehicle, a hydrogen-powered vehicle, or a hybrid vehicle. Furthermore, the vehicle can be a sedan, SUV, MPV, sports car, racing car, truck, engineering vehicle, bus, large passenger vehicle, special vehicle, etc.

[0034] The screen assembly is located within the vehicle cabin, specifically mounted on the roof. In vehicles, to enhance the audiovisual entertainment experience for rear passengers and considering the overall aesthetics and space utilization of the interior, screens are often placed on the roof. To allow for retraction and concealment when not in use to maintain a flat roof and facilitate passenger entry and exit, and to adjust to the optimal viewing angle when in use, the display device within the screen assembly can rotate relative to the roof (e.g., from a retracted, roof-parallel state to a viewing state perpendicular to the roof).

[0035] For example, the screen assembly may be installed on the roof above the front row of the vehicle, on the roof above the second row of seats, or on the roof above the third row of seats.

[0036] For example, the vehicle includes a body structure, and the screen assembly is connected to the body structure.

[0037] See Figure 1 and Figure 2 As shown. This application also provides a screen assembly. The screen assembly includes a lead screw 1, a display element 3, and a locking mechanism 4. The display element 3 is throttle-connected to the lead screw 1.

[0038] The lead screw 1 is a transmission element that converts rotary motion into linear motion. Helical grooves (i.e., threads) are machined on its outer cylindrical surface. When the lead screw 1 rotates around its axis, the nut (or a component with internal threads) that engages with it via the thread will move linearly along the axial direction of the lead screw 1. In the screen assembly of this application, the lead screw 1 is the core component driving the horizontal movement of the display element 3.

[0039] For example, the material of the lead screw 1 may include, but is not limited to, hardened medium carbon steel (such as No. 45 steel), stainless steel or aluminum alloy, so that it has sufficient strength, wear resistance and corrosion resistance.

[0040] For example, the thread type of the lead screw 1 can be a trapezoidal thread, a ball thread, or a standard triangular thread. Among them, the ball screw 1 has the beneficial effects of low frictional resistance, high transmission efficiency, and high precision.

[0041] In one possible implementation, the screen assembly further includes a first drive member 2, which is connected to the lead screw 1 via a transmission connection.

[0042] The first driving component 2 is the power source that drives the lead screw 1 to rotate. The first driving component 2 converts electrical energy or other forms of energy into mechanical rotational motion and transmits it to the lead screw 1. The first driving component 2 can be directly connected to one end of the lead screw 1 through a coupling, or it can be connected to the lead screw 1 through a transmission mechanism such as gears or synchronous belts, to adapt to different installation spaces and torque requirements.

[0043] For example, the first driving component 2 can be a miniature DC geared motor, a stepper motor, or a servo motor. DC geared motors are low-cost and easy to control; stepper motors can achieve precise position control; and servo motors can provide more accurate speed and position feedback.

[0044] Display component 3 is the part of the screen assembly that carries the image display function. In this application, it generally refers to a display screen and structural components that may support or protect the display screen. Exemplarily, display component 3 includes a display screen, a back plate of the display screen, connecting cables, a housing, and possible heat dissipation structures.

[0045] In one possible implementation, the display element 3 is disposed around the periphery of the lead screw 1, meaning that at least a portion of the display element 3 is located around the periphery of the lead screw 1, allowing the display element 3 to rotate about the lead screw 1. See also Figure 1 As shown, display component 3 can rotate around lead screw 1. It should be noted that... Figure 1 The rotation of the display component 3 is merely an example and does not limit the rotation angle of the display component 3.

[0046] The locking mechanism 4 is fixedly connected to the display component 3. The connection methods include, but are not limited to, at least one of the following: bolt connection, snap-fit, plug-in connection, latch connection, magnetic connection, adhesive bonding, and welding.

[0047] It should be noted that when the screen assembly is installed in the vehicle, the axis of the lead screw 1 is the width direction of the vehicle. At this time, the display 3 moves along the axis of the lead screw 1, that is, along the width line of the vehicle; hereinafter, we will use "moving in the horizontal direction" instead of "moving in the horizontal direction".

[0048] The locking mechanism 4 has a locked state and an unlocked state. When the locking mechanism 4 is in the locked state, there is a preload between the locking mechanism 4 and the lead screw 1, and the display element 3 can rotate with the lead screw 1. When the locking mechanism 4 is in the unlocked state, the preload between the locking mechanism 4 and the lead screw 1 is lost, and the lead screw 1 drives the display element 3 to move along the axial direction of the lead screw 1.

[0049] Preload refers to the radial pressure applied to the lead screw 1 when the locking mechanism 4 is in the locked state. This pressure generates a sufficiently large static friction force between the contact surface of the locking mechanism 4 and the lead screw 1. This static friction torque is greater than or equal to the torque required to drive the screen to flip, thereby ensuring that when the lead screw 1 rotates, the friction force can reliably drive the display component 3 to rotate synchronously with the lead screw 1 without relative slippage.

[0050] Loss of preload means that when the locking mechanism 4 is in the unlocked state, the locking mechanism 4, together with the display element 3 fixed thereon, and the lead screw 1 no longer form a rigid or high-friction connection in the circumferential direction. At this time, the driving force generated by the rotation of the lead screw 1 cannot be effectively transmitted to the display element 3 through friction, so the display element 3 will not rotate with the lead screw 1. However, the rotation of the lead screw 1 can still drive the display element 3 to move axially through another transmission component (such as the sliding nut 5) connected to the display element 3.

[0051] Thus, the same lead screw 1 and the first drive component 2 are used in a time-division multiplexing manner to achieve two motion modes. When screen flipping is required, the locking mechanism 4 is switched to the locking state, generating a preload between it and the lead screw 1. At this time, the first drive component 2 drives the lead screw 1 to rotate. Due to the frictional torque generated by the preload, the display component 3 is locked onto the lead screw 1 and rotates synchronously, realizing the flipping action.

[0052] When the screen needs to move horizontally, the locking mechanism 4 is switched to the unlocked state, so that the preload between it and the lead screw 1 is released, thus releasing the circumferential constraint. At this time, the first driving member 2 drives the lead screw 1 to rotate again. Since the display component 3 is axially connected to the lead screw 1 but circumferentially free, the rotation of the lead screw 1 is converted into linear movement of the display component 3 along its axis, while the display component 3 itself does not rotate.

[0053] The above technical solutions improve the screen's adjustability and usability. Passengers can first adjust the screen's rotation angle to a comfortable vertical viewing angle, and then fine-tune its horizontal position so that the center of the screen is precisely aligned with the passenger's line of sight, resulting in a better viewing experience.

[0054] The above technical solution uses a locking mechanism 4 to switch motion modes, reuses a set of drive components, reduces the number of parts, reduces system complexity and total weight, reduces potential failure points, improves reliability, and facilitates layout in the limited space of the roof, thereby reducing costs.

[0055] See Figure 3 , Figure 4 and Figure 5 and combined Figure 1As shown. In one possible embodiment, the locking mechanism 4 includes a clamping member 41 and a second driving member 42. The clamping member 41 includes a first clamping portion 411 and a second clamping portion 412. The second driving member 42 is tractively connected to at least one of the first clamping portion 411 and the second clamping portion 412, and drives the at least one to move toward or away from the other.

[0056] The lead screw 1 is clamped or released from both sides by a clamping member 41 having a first clamping part 411 and a second clamping part 412 that are movable relative to each other.

[0057] For example, the first clamping part 411 and the second clamping part are located on opposite sides of the lead screw 1 in the radial direction, thus achieving a direct and effective radial clamping. This symmetrical clamping arrangement ensures that the clamping force applied to the lead screw 1 is a pair of forces of equal magnitude and opposite direction. The lead screw 1 mainly bears the radial pressure without generating additional bending moment or causing the lead screw 1 to tend to translate.

[0058] The second drive member 42 acts as an actuator, driving at least one clamping part to move, thereby changing the distance between the two clamping parts. When locking is required, the second drive member 42 drives the clamping parts to move towards each other, clamping the lead screw 1 and generating radial preload. When unlocking is required, the second drive member 42 drives the clamping parts to move in the opposite direction, away from the lead screw 1, thereby causing the locking mechanism 4 to lose preload.

[0059] In this way, the symmetrical clamping forces cancel each other out inside the lead screw 1, thereby protecting the support system and extending its service life. The symmetrical constraint ensures that the resistance torque of the lead screw 1 is uniform in all circumferential directions when locked, reducing the possibility of uneven locking torque or accidental slippage. This, in turn, makes the locking state more stable.

[0060] In one possible implementation, the first clamping portion 411 and the second clamping portion 412 may not be completely symmetrical. For example, one side may be a fixed clamping block, and the other side a movable clamping block. The movable clamping block is driven by the second driving member 42 to move towards the fixed clamping block to achieve clamping. Exemplarily, when the second driving member 42 is drivenly connected to the first clamping portion 411, the position of the second clamping portion is fixed. When the second driving member 42 is drivenly connected to the second clamping portion 412, the position of the first clamping portion is fixed.

[0061] The contact surface between the clamping part and the lead screw 1 can be an arc surface that matches the outer circle of the lead screw 1, or it can be a plane. The material of the contact surface can be metal, or it can be inlaid with non-metallic friction materials (such as engineering plastics, rubber, powder metallurgy materials) to increase the coefficient of friction and reduce wear on the lead screw 1.

[0062] See Figure 4 and Figure 5 and combined Figure 1 As shown. In one possible embodiment, the first clamping portion 411 and the second clamping portion 412 extend circumferentially along the lead screw 1. One end of the first clamping portion 411 is connected to one end of the second clamping portion 412, and the other end of the first clamping portion 411 is spaced apart from the other end of the second clamping portion 412 to form an opening.

[0063] The first clamping part 411 and the second clamping part 412 extend circumferentially along the lead screw 1, and are connected at one end, with the other end spaced apart to form an opening. This forms a structure similar to a C-clamp. The two clamping parts are configured as a single, flexible, or openable component. The connected end forms an elastic bending part, and the spaced-apart end forms a controlled opening and closing part. The second driving member 42 only needs to act on the opening and closing part to control the opening size of the clamping member, thereby realizing the locked state and the unlocked state.

[0064] In this way, integrating the two clamping parts into one component reduces assembly steps, improves structural consistency, and results in fewer parts and a simpler structure. Furthermore, since the two clamping parts are a single unit, when the opening and closing mechanism is activated, the two clamping parts move synchronously towards or away from each other around the connection end, ensuring that the clamping force is always applied symmetrically to both sides of the lead screw 1.

[0065] One end of the first clamping part 411 is connected to one end of the second clamping part 412. This connection can be a rigid fixed connection, or a hinged or elastic connection that allows for a certain degree of relative rotation. This connection ensures that the first clamping part 411 and the second clamping part 412 move synchronously, thereby guaranteeing the symmetry and stability of the clamping force and forcing synchronized movement. Simultaneously, this arrangement improves the overall structural integrity, increases structural rigidity, and enhances the ability to resist deformation and external force interference.

[0066] See Figure 4 and Figure 5 and combined Figure 1 As shown. In one possible embodiment, the clamping member 41 further includes a spaced-apart first extension 413 and a spaced-apart second extension 414. The first extension 413 is connected to the other end of the first clamping portion 411 and has an extension away from the lead screw 1. The second extension 414 is connected to the other end of the second clamping portion 412 and has an extension away from the lead screw 1. The second driving member 42 is connected to at least one of the first extension 413 and the second extension 414 and is drively connected to the other.

[0067] A first extension 413 and a second extension 414 are respectively connected to the open ends of the first clamping part 411 and the second clamping part 412. The first extension 413 and the second extension 414 do not directly participate in clamping the lead screw 1, but act as "lever arms" or "force application points". The second driving member 42 acts on the first extension 413 and the second extension 414, and indirectly controls the distance between the open ends of the two clamping parts by changing the distance between them, thereby realizing clamping and releasing. For example, when the two extensions are driven to move closer to each other, the open ends of the two clamping parts are forced to close together, thereby clamping the lead screw 1; otherwise, they are released.

[0068] Thus, the first extension 413 and the second extension 414 move the force application point away from the lead screw 1, providing more space for the installation and arrangement of the second drive member 42. At the same time, the lever arm is increased, which can generate a larger clamping force with a smaller driving force, thus saving effort or reducing the power requirements of the second drive member 42.

[0069] Meanwhile, a defined space is formed between the first extension 413 and the second extension 414, facilitating the installation of the second drive member 42. The second drive member 42 can be securely mounted on one of the extensions and drive the other extension.

[0070] For example, the connection methods of the first extension 413 and the first clamping part 411 include, but are not limited to, at least one of the following: bolt connection, snap-fit, plug-in connection, latch connection, magnetic connection, adhesive bonding, welding, and integral molding.

[0071] For example, the connection methods of the second extension 414 and the second clamping part 412 include, but are not limited to, at least one of the following: bolt connection, snap-fit, plug-in, latch connection, magnetic connection, adhesive, welding, and integral molding.

[0072] For example, the extension direction of the first extension 413 and the extension direction of the second extension 414 can be arranged parallel or intersecting.

[0073] In one possible implementation, the second drive element 42 includes, but is not limited to, an electric component, a pneumatic component, or an electromagnetic component.

[0074] See Figure 4 and combined Figure 1 As shown. In one possible embodiment, the second drive member 42 includes a motor 421 and a rotating shaft 422, with the motor 421 and the rotating shaft 422 being driveably connected. One of the first extension 413 and the second extension 414 is fixedly connected to the motor 421, and the other is threadedly connected to the rotating shaft 422. The rotating shaft 422 can drive the other extension closer to or further away from the first extension to change the distance between the first extension 413 and the second extension 414.

[0075] Motor 421 acts as a power source, driving shaft 422 to rotate. Shaft 422 is threadedly connected to one of the first extension 413 and the second extension 414. For example, a threaded hole is provided in the first extension 413, into which shaft 422 is screwed. When shaft 422 rotates, since the second extension 414 is fixedly connected to motor 421, i.e., axially constrained, the rotational motion of shaft 422 is converted into linear motion along the axial direction of shaft 422 with the first extension 413 via the threaded pair, thereby changing the distance between the first extension 413 and the second extension 414.

[0076] Thus, the rotation angle of motor 421 can be precisely controlled by the number of pulses (stepper motor) or encoder feedback (servo motor), thereby precisely controlling the displacement of the two extensions and adjusting the clamping force accordingly, achieving programmable control of the clamping force. The threaded drive has self-locking properties; when motor 421 is de-energized, the threaded pair can maintain its current position through friction, maintaining a locked or unlocked state without continuous power supply. This saves energy and improves system safety. Furthermore, the threaded drive operates smoothly and with low noise, reducing noise levels in environments requiring a quiet and comfortable environment, such as vehicle interiors.

[0077] For example, when the motor 421 drives the shaft 422 to rotate forward, the first extension 413 and the second extension 414 move closer to each other; when the motor 421 drives the shaft 422 to rotate in reverse, the first extension 413 and the second extension 414 move further apart. Alternatively, when the motor 421 drives the shaft 422 to rotate forward, the first extension 413 and the second extension 414 move further apart; when the motor 421 drives the shaft 422 to rotate in reverse, the first extension 413 and the second extension 414 move closer to each other.

[0078] For example, the first extension 413 is fixedly connected to the motor 421, and the second extension 414 is threadedly connected to the rotating shaft 422. Alternatively, the second extension 414 is fixedly connected to the motor 421, and the first extension 413 is threadedly connected to the rotating shaft 422.

[0079] In one possible implementation, a motor 421 and a pinion are mounted on one extension, and a rack is mounted on the other extension. The pinion meshes with the rack, and the motor 421 drives the pinion to rotate, thereby causing the two extensions to move relative to each other. Alternatively, a linkage mechanism can be used: the motor 421 drives an eccentric wheel or crank, which in turn pushes one of the extensions to move via a connecting rod. A linear motor 421 can also be used, with its mover directly connected to one extension and its stator connected to the other extension, generating linear thrust directly by energizing it.

[0080] See Figure 5 and combined Figure 1As shown. In one possible embodiment, the second driving member 42 includes an electromagnetic member 423 and a magnetizing member 424. The electromagnetic member 423 is connected to one of the first extension 413 and the second extension 414, and the magnetizing member 424 is connected to the other of the first extension 413 and the second extension 414. Along the spacing direction of the first extension 413 and the second extension 414, the magnetizing member 424 is disposed opposite to the electromagnetic member 423, and the electromagnetic member 423 can generate an attractive force on the magnetizing member 424 when energized.

[0081] The locking mechanism 4 achieves rapid response and seamless switching without mechanical wear by employing the electromagnetic attraction principle of electromagnetic component 423 and magnetizing component 424. It is suitable for applications requiring higher speed, quiet operation, and longer service life.

[0082] Electromagnetic component 423 and magnetizing component 424 are respectively mounted on the two extensions. When electromagnetic component 423 is energized, it generates a magnetic field, which produces a strong attraction force on magnetizing component 424, overcoming the elastic force or restoring force of the first clamping part 411 and the second clamping part 412, causing the first extension 413 and the second extension 414 to move closer to each other, thereby driving the clamping part to clamp the lead screw 1 (locked state). When electromagnetic component 423 is de-energized, the magnetic field disappears, the attraction force disappears, and under the action of the elastic restoring force of the first clamping part 411 and the second clamping part 412, the two extensions separate, and the clamping part releases the lead screw 1 (unlocked state).

[0083] Thus, the electromagnetic component 423 and the magnetized component 424 operate rapidly and respond quickly. Electromagnetic engagement / disengagement can be completed within milliseconds, enabling rapid screen mode switching. Simultaneously, the electromagnetic component 423 and the magnetized component 424 enable contactless transmission, resulting in quiet operation and a long lifespan. In the locked state, under the action of electromagnetic force, there is no mechanical contact (or only slight contact) between the two extensions, reducing mechanical wear, slippage, and noise, thereby improving the service life and quiet operation of the locking mechanism 4.

[0084] Furthermore, it features a simple structure and ease of control. The control logic is simple, requiring only energizing or de-energizing the electromagnet, eliminating the need for complex displacement or angle sensors for closed-loop control. It has a defined default state in the power-off state. It can typically be set to a safety mode where unlocking occurs upon power failure. When the vehicle loses power or the system malfunctions, the locking mechanism 4 automatically releases, allowing the screen to be moved manually, thus improving system security.

[0085] For example, the electromagnetic component 423 includes an electromagnet and a coil wound around the electromagnet. The magnetizing component 424 refers to a component that can be attracted by electromagnetic effects, such as a component made of materials such as iron, low-carbon steel, or silicon steel.

[0086] In one possible implementation, unilateral electromagnetic adsorption can be used. Specifically, an electromagnet is installed on one extension, and a magnetically conductive material is used corresponding to the lead screw 1 or another extension. When energized, it is attracted and fixed, achieving a locked state; when de-energized, it is released. Alternatively, an electromagnetic brake can be used: a miniature electromagnetic brake is installed, with its brake disc fixed to the lead screw 1 and the brake body fixed to the display element 3. It is released when energized and locked when de-energized. This achieves switching between the locked and unlocked states.

[0087] In one possible implementation, the electromagnetic element 423 can also be fixed on a separate bracket, simultaneously attracting the magnetized elements 424 on the two extensions, causing them to move towards the center. Alternatively, two electromagnetic elements 423 can be used, each mounted on one of the two extensions, and their polarities can be controlled to generate attractive or repulsive forces.

[0088] See also Figure 1 and Figure 2 As shown. In one possible implementation, the screen assembly further includes a sliding nut 5, which is connected to the display element 3 and sleeved on the lead screw 1, and the sliding nut 5 is kinetically connected to the lead screw 1.

[0089] The sliding nut 5 is an independent part that is threadedly engaged with the lead screw 1. When the locking mechanism 4 is in the unlocked state, the display element 3 is decoupled from the lead screw 1 in the circumferential direction. At this time, the first driving member 2 drives the lead screw 1 to rotate. Since the sliding nut 5 and the lead screw 1 are in a threaded transmission relationship, the rotation of the lead screw 1 forces the sliding nut 5 (along with the display element 3 fixed to it) to produce linear motion along the axial direction of the lead screw 1, while the display element 3 itself does not rotate. The presence of the sliding nut 5 converts the rotational motion of the lead screw 1 into the linear motion of the display element 3.

[0090] Thus, precise linear displacement control is achieved through the sliding nut 5. The sliding nut 5 and the lead screw 1 together form a precision linear transmission mechanism. The displacement of the lead screw 1 is strictly linearly proportional to its rotation angle. Combined with the precise control of the first drive component 2, high-precision horizontal positioning of the screen can be achieved. Simultaneously, the sliding nut 5 ensures smooth and stable movement. Using the sliding nut 5 reduces frictional resistance, making the screen movement smooth and quiet, enhancing the premium feel. This separates the load-bearing and driving functions.

[0091] The sliding nut 5 bears the weight load of the display component 3 and converts it into axial force on the lead screw 1, while the locking mechanism 4 mainly transmits rotational torque. For example, the sliding nut 5 can focus on wear resistance and load bearing, while the locking mechanism 4 can focus on providing sufficient frictional torque. This improves the reliability of the system. Even if the locking mechanism 4 wears down after long-term use, resulting in a decrease in friction, the horizontal movement function can still work stably as long as the sliding nut 5 and the lead screw 1 have a good thread fit, and the two functions have little mutual influence.

[0092] For example, the sliding nut 5 includes, but is not limited to, ball nuts, trapezoidal thread nuts, sawtooth thread nuts, rectangular thread nuts, and pipe thread nuts.

[0093] In one possible implementation, along the axial direction of the lead screw 1, the sliding nut 5 and the locking mechanism 4 are located on opposite sides of the display element 3. Thus, when the locking mechanism 4 is in the locked state, the sliding nut 5 can provide support force, ensuring uniform force distribution when the lead screw 1 drives the display element 3 to rotate.

[0094] In one possible implementation, an internal threaded hole can be directly machined into the display component 3, so that it acts as a nut to engage with the lead screw 1.

[0095] The connection methods between the sliding nut 5 and the display component 3 include, but are not limited to, at least one of the following: bolt connection, snap-fit, plug-in connection, locking connection, magnetic connection, adhesive bonding, welding, and integral molding.

[0096] See also Figure 1 and Figure 2 and Figure 6 As shown. In one possible embodiment, the display element 3 includes a mounting hole 31 through which the lead screw 1 passes. Multiple sliding nuts 5 are located in the mounting hole 31 and are arranged along the axial direction of the lead screw 1.

[0097] By passing the lead screw 1 through the mounting hole 31 on the display element 3, a direct, through-type guide and support reference is provided for the display element 3. The mounting hole 31 forms a sleeve-like guide for the lead screw 1, making the movement trajectory of the display element 3 along the axial direction of the lead screw 1 accurate and reducing the possibility of deviation.

[0098] The sliding nut 5 is placed inside the mounting hole 31, so that it is surrounded and protected by the hole wall. Multiple sliding nuts 5 are arranged axially, providing support points and drive points for the display element 3 at multiple different axial positions of the lead screw 1.

[0099] Multiple sliding nuts 5 share the load, forming multi-point support. This reduces the overturning moment of the display component 3 due to its own weight or external disturbances (such as vehicle bumps), and reduces swaying or shaking of the display component 3 during movement, thus stabilizing the screen image. It also improves stress distribution and extends lifespan. Specifically, the multiple sliding nuts 5 distribute the weight and inertial force of the display component 3 over a longer section of the lead screw 1, reducing stress concentration on individual nuts and local threads of the lead screw 1, thereby lowering the wear rate and extending the service life of the lead screw assembly.

[0100] For example, the number of sliding nuts 5 can be set to 2, 3, 4, 5 or more. In one possible use case, if one of the sliding nuts 5 fails due to foreign object jamming or damage, the remaining sliding nuts 5 can still continue to work, maintaining basic transmission function, improving the robustness of the system and providing safety redundancy for the system.

[0101] The spacing between multiple sliding nuts 5 can be uniform and equal, or the number of sliding nuts 5 can be arbitrarily set. For example, the arrangement spacing of multiple sliding nuts 5 can be intentionally adjusted according to the center of gravity position of the display component 3, so that the support point is closer to the center of gravity, thereby minimizing the dynamic swaying of the screen during movement. The lengths of multiple sliding nuts 5 can be the same or different. It can be set according to the actual use.

[0102] See also Figure 1 and Figure 2 As shown. In one possible embodiment, the screen assembly further includes a first support member 6 and a second support member 7 spaced apart along the axial direction of the lead screw 1, with the lead screw 1 located between the first support member 6 and the second support member 7. The lead screw 1 is rotatably connected to the first support member 6 and the second support member 7. A first drive member 2 is disposed on either the first support member 6 or the second support member 7. The screen assembly also includes a damping member 8, which is disposed between the first drive member 2 and the lead screw 1 and is driveably connected to both the first drive member 2 and the lead screw 1.

[0103] The first support member 6 and the second support member 7 are spaced apart along the axial direction of the lead screw 1, forming two fulcrums for the lead screw 1 and providing a stable rotation axis 422 for the lead screw 1. The lead screw 1 is rotatably connected to the first support member 6 and the second support member 7, which improves the smoothness of rotation and reduces friction.

[0104] This creates a double-support structure, which has better rigidity and can effectively reduce the bending deformation of the lead screw 1 under stress. Specifically, when the lead screw 1 rotates to drive the display component 3, especially when the display component 3 is in the flipped-open state and the center of gravity is far from the support point, a large overturning moment will be generated. The double-support structure can effectively resist the bending deformation of the lead screw 1 caused by this moment.

[0105] This improves the stability of the lead screw thread engagement, providing a mechanical foundation for the precise and smooth rotation and movement of the screen. At the same time, the robust support reduces the risk of bearing wear and mechanical fatigue caused by long-term stress, thus enhancing the system's durability.

[0106] The damping element 8 is positioned between the first drive element 2 and the lead screw 1, acting as a buffer or vibration damping element to provide a damping torque related to the speed or angular velocity of motion. Specifically, when the screen is flipped to a certain angle and comes to rest, vibrations caused by vehicle acceleration / deceleration, turning, or uneven road surfaces are transmitted to the screen assembly through the vehicle body. These disturbances attempt to cause the screen to produce a small angular displacement around its pivot 422, i.e., the lead screw 1, resulting in screen jitter. At this time, the holding torque provided by the damping element 8 has a locking effect. This holding torque increases the starting torque required for the screen to start shaking from a stationary state, thereby improving the screen's attitude stability in a stationary state and making it less susceptible to being shaken by external low-frequency disturbances.

[0107] At the start and end of the screen flipping motion, the start-stop torque impact of the first drive component 2, the clearance of the transmission components, and the system inertia may all induce brief mechanical oscillations. The damping component 8 can dissipate this vibrational energy. The damping torque generated by the damping component 8 is always opposite to the vibration direction, converting mechanical energy into heat energy and dissipating it, thereby quickly calming the screen's shaking and residual vibration, allowing the screen to quickly return to a stable state.

[0108] This improves the static and dynamic stability of the screen display, thereby enhancing the visual experience for drivers and passengers. At the same time, the damping element 8 also improves the overall quality and sophistication of the system's movement, eliminating the looseness and vibration noise often found in inexpensive mechanical structures.

[0109] For example, the damping component 8 includes, but is not limited to: silicone oil torsional damper, rubber coupling, flexible coupler, and friction damper.

[0110] The damping element 8 can be coaxially connected to the output shaft of the first driving element 2 via a spline, flat key, or set screw, and its output end can be connected to the lead screw 1 in a similar manner. Alternatively, it can be connected to both via belt drive or gear drive.

[0111] In one possible implementation, the screen assembly further includes a sensor connected to either the first support 6 or the second support 7, for detecting the rotation angle of the display 3.

[0112] For example, the types of sensors include, but are not limited to: magnetic induction sensors and grating sensors.

[0113] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A screen assembly, characterized in that, include: Lead screw (1); The display component (3) is connected to the lead screw (1) for transmission. A locking mechanism (4) is fixedly connected to the display element (3); the locking mechanism (4) has a locked state and an unlocked state; when the locking mechanism (4) is in the locked state, there is a preload between the locking mechanism (4) and the lead screw (1), and the lead screw (1) drives the display element (3) to rotate; when the locking mechanism (4) is in the unlocked state, the preload between the locking mechanism (4) and the lead screw (1) is lost, and the lead screw (1) drives the display element (3) to move along the axial direction of the lead screw (1).

2. The screen assembly according to claim 1, characterized in that, The locking mechanism (4) includes: The clamping member (41) includes a first clamping part (411) and a second clamping part (412). The second drive member (42) is connected to at least one of the first clamping part (411) and the second clamping part (412) and drives the at least one to move toward or away from the other.

3. The screen assembly according to claim 2, characterized in that, The first clamping part (411) and the second clamping part (412) extend circumferentially along the lead screw (1); one end of the first clamping part (411) is connected to one end of the second clamping part (412), and the other end of the first clamping part (411) forms an opening with the other end of the second clamping part (412).

4. The screen assembly according to claim 3, characterized in that, The clamping member (41) further includes a first extension (413) and a second extension (414) spaced apart; the first extension (413) is connected to the other end of the first clamping part (411) and has an extension away from the lead screw (1); the second extension (414) is connected to the other end of the second clamping part (412) and has an extension away from the lead screw (1). The second drive member (42) is connected to at least one of the first extension (413) and the second extension (414), and is drive-connected to the other.

5. The screen assembly according to claim 4, characterized in that, The second driving member (42) includes a motor (421) and a rotating shaft (422), wherein the motor (421) is connected to the rotating shaft (422) in a transmission connection; one of the first extension (413) and the second extension (414) is fixedly connected to the motor (421), and the other is threadedly connected to the rotating shaft (422); the rotating shaft (422) can drive the other to move closer to or further away from the first to change the distance between the first extension (413) and the second extension (414).

6. The screen assembly according to claim 4, characterized in that, The second driving member (42) includes an electromagnetic element (423) and a magnetizing element (424). The electromagnetic element (423) is connected to one of the first extension (413) and the second extension (414), and the magnetizing element (424) is connected to the other of the first extension (413) and the second extension (414). Along the interval direction between the first extension (413) and the second extension (414), the magnetizing element (424) is disposed opposite to the electromagnetic element (423), and the electromagnetic element (423) can generate an attractive force on the magnetizing element (424) when energized.

7. The screen assembly according to claim 1, characterized in that, Also includes: A sliding nut (5) is connected to the display component (3) and sleeved on the lead screw (1). The sliding nut (5) is connected to the lead screw (1) in a transmission manner.

8. The screen assembly according to claim 7, characterized in that, The display component (3) includes a mounting hole (31), and the lead screw (1) passes through the mounting hole (31); the sliding nut (5) is located in the mounting hole (31), and there are multiple sliding nuts (5) arranged along the axial direction of the lead screw (1).

9. The screen assembly according to any one of claims 1-8, characterized in that, Also includes: A first support member (6) and a second support member (7) are spaced apart along the axial direction of the lead screw (1), the lead screw (1) is located between the first support member (6) and the second support member (7), the lead screw (1) is rotatably connected to the first support member (6), and the lead screw (1) is rotatably connected to the second support member (7); the screen assembly further includes: A first driving member (2) is disposed on the first support member (6) or the second support member (7); the first driving member (2) is used to drive the lead screw (1) to rotate; A damping element (8) is disposed between the first driving element (2) and the lead screw (1) and is connected to the first driving element (2) and the lead screw (1) in a transmission manner.

10. A vehicle, characterized in that, Includes the screen component according to any one of claims 1-9.

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