Folding driving mechanism, electronic device and vehicle

Abstract

This application provides a folding drive mechanism, an electronic device, and a vehicle. The folding drive mechanism includes a first base frame, a second base frame, a drive assembly, a rotating member, and a transmission assembly. The rotating member is rotatably connected to both the first and second base frames. The transmission assembly includes a first push arm, a driving member, and a driven member connected in a transmission manner, both of which are mounted on the rotating member. The first push arm connects the driven member and the first base frame. The drive assembly fixes the second base frame and includes a second push arm connected to the driving member. When the second push arm moves, it drives the rotating member and the driving member to rotate, and the driving member drives the driven member to rotate, thereby causing the first push arm and the first base frame to rotate relative to the rotating member. Thus, by utilizing the movement of the second push arm of the drive assembly to drive the rotating member and the driving member to rotate, the driven member and the first push arm are driven to rotate, and the first base frame is driven to rotate relative to the rotating member, achieving rotation of the first base frame relative to the second base frame.

Description

Technical Field

[0001] This application relates to the field of vehicle component technology, and in particular to a folding drive mechanism, electronic equipment, and vehicle. Background Technology

[0002] With the emergence of flexible displays, various handheld folding devices are constantly appearing and being upgraded. Meanwhile, major display manufacturers and end-users are considering how to apply flexible displays to their products to enhance brand and product competitiveness. The automotive industry is also seeing increasing demand for flexible displays; however, if the displays are not folded away, they will occupy the vehicle's interior surface, and prolonged display may pose driving safety hazards. Summary of the Invention

[0003] To address the aforementioned technical problems, this application provides a folding drive mechanism, electronic device, and vehicle, which enables the folding drive mechanism to have a more compact structure and is easier to rotate and store.

[0004] One aspect of this application provides a folding drive mechanism, including a first base frame, a second base frame, a drive assembly, a rotating member, and a transmission assembly; the rotating member is rotatably connected to both the first base frame and the second base frame; the transmission assembly includes a first push arm, a driving member and a driven member connected in transmission, the driving member and the driven member being disposed on the rotating member; the first push arm connects the driven member and the first base frame; the drive assembly is fixed to the second base frame, and the drive assembly includes a second push arm connected to the driving member; wherein, when the second push arm moves, it drives the rotating member and the driving member to rotate, the driving member drives the driven member to rotate, thereby driving the first push arm and the first base frame to rotate relative to the rotating member.

[0005] Furthermore, at least one of the first push arm and the second push arm is provided with a damping part; the transmission assembly further includes a positioning part and an elastic part disposed on the rotating part, the positioning part including a positioning block; wherein, the positioning block and the damping part abut against each other, and the end faces of the positioning block and the damping part abutting against each other are both concave and convex surfaces, and the concave and convex surfaces cooperate with each other; the elastic part elastically abuts against the positioning part and the rotating part; preferably, each of the concave and convex surfaces is wavy, including a smoothly connected protrusion and a recess.

[0006] Furthermore, the transmission assembly also includes a fixed frame fixed inside the rotating member; both the driving member and the driven member are rotatably fixed on the fixed frame; the end face of the fixed frame is provided with a fixed post, and the positioning member and the elastic member are both sleeved on the fixed post.

[0007] Furthermore, the transmission assembly also includes a fixing member; the fixing member fixes the driving member and the second push arm, the driven member and the first push arm to opposite end faces of the fixing frame respectively; the positioning member also connects each of the fixing members, and there are multiple elastic members, with each fixing member also fitted with an elastic member; preferably, the transmission assembly also includes a first intermediate member and a second intermediate member that mesh with each other, wherein the first intermediate member meshes with the driving member, and the second intermediate member meshes with the driven member; the driving member, the driven member, the first intermediate member and the second intermediate member are all gears.

[0008] Furthermore, at least one of the first base frame and the second base frame is provided with a guide block, and the guide block is provided with a guide rail; the first push arm and / or the second push arm are connected to the guide block and can slide along the guide rail.

[0009] Furthermore, the second base frame is provided with a guide block, and the guide block is provided with a guide rail; the drive assembly also includes a connector, a lead screw and a push block connected to the lead screw; the connector is slidably installed in the guide rail, and the connector connects the push block and the second push arm.

[0010] Furthermore, the drive assembly also includes a drive source, and the second push arm is a piston rod connected to the drive source; the piston rod is fixedly connected to the driving member.

[0011] Furthermore, the rotating component is provided with a fixed shaft; at least one of the first base frame and the second base frame is provided with a connecting arm, which is rotatably connected to the fixed shaft.

[0012] Furthermore, the fixed shaft is an arc-shaped shaft; each of the connecting arms is provided with an arc-shaped groove, and the arc-shaped groove is rotatably connected to the arc-shaped shaft; preferably, the fixed shaft includes a first fixed shaft and a second fixed shaft that are not coaxially arranged; the first base frame and the second base frame are each provided with two connecting arms at intervals; wherein, the connecting arms of the first base frame and the second base frame are respectively rotatably connected to the first fixed shaft and the second fixed shaft; preferably, each of the arc-shaped shafts and each of the arc-shaped grooves are semi-circular.

[0013] In another aspect of this application, an electronic device is provided, including the aforementioned folding drive mechanism and flexible folding screen; wherein the first base frame and the second base frame are used to support the flexible folding screen.

[0014] Another aspect of this application provides a vehicle including the aforementioned electronic equipment.

[0015] The beneficial effects of this application are as follows: The folding drive mechanism provided by this application includes a first base frame, a second base frame, a drive assembly, a rotating component, and a transmission assembly; the rotating component is rotatably connected to both the first base frame and the second base frame; the transmission assembly includes a first push arm, a driving component and a driven component connected in transmission, and both the driving component and the driven component are disposed on the rotating component; the first push arm connects the driven component and the first base frame; the drive assembly fixes the second base frame, and the drive assembly includes a second push arm, which is connected to the driving component; wherein, when the second push arm moves, it drives the rotating component and the driving component to rotate, and the driving component drives the driven component to rotate, thereby driving the first push arm and the first base frame to rotate relative to the rotating component. Therefore, by using a drive component to move the second push arm and drive the rotating component and the driving component to rotate, the driving component drives the driven component and the first push arm to rotate. Since the first push arm is connected to the first base frame, it can drive the first base frame to rotate relative to the rotating component. Through the rotation of the rotating component and the first push arm, the first base frame can be rotated relative to the second base frame to a folded state or an open state. That is, the first base frame can be rotated to fold onto the second base frame for storage, thereby reducing the space occupied; or the first base frame can be rotated to form a required angle with the second base frame to accommodate different users or different usage scenarios, thereby improving the user experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0017] Figure 1 This is an exploded structural diagram of a folding drive mechanism provided in this application, the folding drive mechanism including a positioning component and a fixing frame;

[0018] Figure 2 yes Figure 1 A top-view structural diagram of the three-dimensional structure in the image;

[0019] Figure 3 yes Figure 1 A schematic diagram of the folding drive mechanism in the folding state;

[0020] Figure 4 yes Figure 1 A three-dimensional structural diagram of the positioning component;

[0021] Figure 5 yes Figure 1 A three-dimensional structural diagram of the central fixed frame;

[0022] Figure 6 yes Figure 1 A three-dimensional structural diagram of the middle section;

[0023] Figure 7 yes Figure 3 A three-dimensional structural diagram of the middle section;

[0024] Figure 8 yes Figure 1 A schematic diagram of the exploded structure of another part of the structure;

[0025] Figure 9 yes Figure 7 A three-dimensional structural diagram of the fixed axis. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0027] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0028] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] One aspect of this application provides a folding drive mechanism 100, see [link to details]. Figure 1 , Figure 2 , Figure 3 , Figure 6 . Figure 1 This is an exploded structural diagram of a folding drive mechanism provided in this application, the folding drive mechanism including a positioning component and a fixing frame; Figure 2 yes Figure 1 A top-view structural diagram of the three-dimensional structure in the image; Figure 3yes Figure 1 A schematic diagram of the folding drive mechanism in the folding state; Figure 6 yes Figure 1 A schematic diagram of the exploded structure of the middle part.

[0030] The folding drive mechanism 100 includes a first base frame 1, a second base frame (not shown), a drive assembly 3, a rotating component 4, and a transmission assembly 5. The drive assembly 3, the rotating component 4, and the transmission assembly 5 are used to drive the relative rotation of the first base frame 1 and the second base frame.

[0031] Understandably, in specific application scenarios, the relative rotation of the first base frame 1 and the second base frame can be either the first base frame 1 rotating relative to the second base frame, or the second base frame rotating relative to the first base frame 1.

[0032] For example, in a specific application scenario, the first base frame 1 is the folding section, and the second base frame is the fixing plate. Both the first and second base frames can serve as carriers for the display screen. The display screen is a flexible display screen. That is, a portion of the flexible display screen is mounted on the first base frame 1, and the other portion is mounted on the second base frame. The drive assembly 3, the rotating component 4, and the transmission assembly 5 can rotate and flip the first base frame 1 onto the second base frame, thereby achieving the folding and storage of the flexible display screen.

[0033] Of course, the first base frame 1 can also be a fixed plate, and the second base frame can be a folding part; that is, the first base frame 1 and the second base frame are only distinguished by their names. It can also be understood that when the first base frame 1 rotates and flips onto the second base frame, a display screen can be installed on the part of the second base frame not covered by the first base frame 1 as needed; and / or a display screen can also be installed on the exposed side of the first base frame 1 after it flips over, allowing for display through the exposed side of the first base frame 1. This allows the display device of the folding drive mechanism 100 to display in large, medium, or small screen formats to adapt to more application scenarios.

[0034] The rotating component 4 is rotatably connected to both the first base frame 1 and the second base frame. The transmission assembly 5 includes a first push arm 51, a driving component 52 and a driven component 53 connected by transmission. The driving component 52 and the driven component 53 are both mounted on the rotating component 4 and can rotate together with the rotating component 4. The first push arm 51 connects the driven component 53 and the first base frame 1.

[0035] The drive assembly 3 is fixed to the second base frame and provides power to the entire folding drive mechanism 100. The drive assembly 3 includes a second push arm 31. The second push arm 31 is connected to the driving member 52 and is used to transmit the power of the drive assembly 3. The movement of the second push arm 31 drives the rotating member 4 to rotate. The rotating member 4 rotates relative to the second push arm 31, thereby causing the second push arm 31 to drive the driving member 52 to rotate. Then, the driving member 52 drives the driven member 53 to rotate. The driven member 53 then drives the first push arm 51 and the first base frame 1 to rotate relative to the rotating member 4, thereby causing the first base frame 1 to rotate relative to the second base frame and fold the first base frame 1 onto the second base frame. Furthermore, under the action of the reverse pulling force of the drive assembly 3, the first base frame 1 can be unfolded relative to the second base frame. This achieves the flipping and storage of the first base frame 1 relative to the second base frame, reducing the area occupied by the first base frame 1 and the second base frame, and unfolding the first base frame 1 relative to the second base frame in usage scenarios where the first base frame 1 and the second base frame need to be unfolded.

[0036] Therefore, the folding drive mechanism 100 in this application uses the drive assembly 3 to move the second push arm 31 and drive the rotating member 4 and the driving member 52 to rotate. The driving member 52 then drives the driven member 53 and the first push arm 51 to rotate. Since the first push arm 51 is connected to the first base frame 1, it can drive the first base frame 1 to rotate relative to the rotating member 4. The rotation of the rotating member 4 and the first push arm 51 allows the first base frame 1 to rotate relative to the second base frame to either a folded or open state. That is, the first base frame 1 can be rotated to fold onto the second base frame for storage, thus reducing space occupation; or the first base frame 1 can be rotated to form a required angle with the second base frame to accommodate different users or different usage scenarios. Furthermore, by setting the rotating member 4 to rotatably connect the first base frame 1 and the second base frame, and by placing the rotating member 4 at the folding / rotating part, the space of the folding / rotating part is rationally utilized, making the entire folding drive mechanism 100 more compact and occupying less space.

[0037] It is understood that the rotating member 4 extends along the connecting edge of the first base frame 1 and the second base frame, and the first push arm 51 and the second push arm 31 are respectively arranged on both sides of the rotating member 4 in a direction perpendicular to the extension of the rotating member 4, corresponding to the first base frame 1 and the second base frame. Thus, the second push arm 31, the rotating member 4, the driving member 52, the driven member 53, and the first push arm 51 constitute a transmission chain (see [link to relevant documentation]). Figure 1 and Figure 6 ).

[0038] The rotating component 4 can be a semi-cylinder to ensure the folding radius of the first base frame 1 and the second base frame. The first base frame 1 and the second base frame can be pivotally connected to the end face of the rotating component 4 via a pivot shaft, or the first base frame 1 and the second base frame can be pivotally connected to the rotating component 4.

[0039] The rotating component 4 can also be a semi-cylindrical or semi-cylindrical shape; that is, the rotating component 4 only needs to include a rotating arc surface to ensure rotatable engagement with the first base frame 1 and the second base frame. For example, please refer to... Figure 1 The rotating component 4 is a semi-cylindrical structure comprising a first external surface 43, a first rotating arc surface 44, a second external surface 45, a second rotating arc surface 46, and a third external surface 47 connected sequentially, and can be axially symmetrical about the centerline of the second external surface 45. The first rotating arc surface 44 rotatably engages with the first base frame 1, and the second rotating arc surface 46 rotatably engages with the second base frame. The first external surface 43, the second external surface 45, and the first external surface 46 prevent interference between the rotating component 4 and the first and second base frames during rotation. It is understood that the rotating component 4 also has a decorative function; when the first base frame 1 rotates and folds onto the second base frame, the first external surface 43, the first rotating arc surface 44, the second external surface 45, the second rotating arc surface 46, and the third external surface 47 of the rotating component are all exposed above the first and second base frames.

[0040] Please see Figure 1 , Figure 2 , Figure 4 and Figure 6 , Figure 4 yes Figure 1 A three-dimensional structural diagram of the positioning component; Figure 6 yes Figure 1 An exploded view of the middle section structure. To ensure smoother rotation of the first push arm 51 and the second push arm 31 during rotation and to maintain their position stably after rotation, in some embodiments, at least one of the first push arm 51 and the second push arm 31 is provided with a damping part 511. The damping part 511 increases the rotational torque of the first base frame 1 during rotation and achieves a hovering positioning effect. The transmission assembly 5 also includes a positioning element 54 and an elastic element 55, both of which are disposed on the rotating element 4. It is understood that the elastic element 55 can be a spring, rubber, sheet metal, etc., used to provide locking force when the first base frame 1 and the second base frame are folded and unfolded.

[0041] The positioning member 54 includes a positioning block 541, which abuts against the damping part 511, and the abutting end faces of the positioning block 541 and the damping part 511 are both concave and convex surfaces. The elastic member 55 elastically abuts against the positioning member 54 and the rotating member 4, which can increase the frictional torque generated by the friction of each surface, and can be compressed or reset during the relative rotation of the positioning block 541 and the damping part 511.

[0042] Specifically, in one embodiment, the end faces of the positioning block 541 and the damping part 511 that abut against each other are provided with a recess 5411 and a protrusion 5412. Thus, the cooperation of the recess 5411 and the protrusion 5412 can increase the stability of the rotation of the first base frame 1 relative to the second base frame, and can also limit the rotation position of the second base frame.

[0043] More specifically, the positioning block 541 and the damping part 511 may be provided with a plurality of recesses 5411 and protrusions 5412, the recesses 5411 and protrusions 5412 being connected to each other and spaced apart, so that the end faces of the corresponding positioning block 541 and damping part 511 form a wave shape.

[0044] For example, the positioning block 541 and the damping part 511 may be provided with two recesses 5411 and two protrusions 5412. During the process of the first base frame 1 unfolding to closing, the first base frame 1 is initially located in the first rotation position. At this time, the protrusions 5412 on the positioning block 541 engage with the recesses 5411 on the damping part 511, causing the damping part 511 to rotate. When the protrusions 5412 of the damping part 511 rotate from the recesses 5411 to the protrusions 5412 of the positioning block 541, they will compress the elastic element 55, increasing the rotational friction. When the protrusions 5412 of the damping part 511 engage with the protrusions 5412 of the positioning block 541, they will compress the elastic element 55, increasing the rotational friction. Upon top contact, the elastic element 55 is not further compressed, and the spring force remains unchanged. When the protrusion 5412 of the damping part 511 rotates to the top of the slope of the protrusion 5412 of the positioning block 541 and moves towards the other recess 5411 of the positioning block 541, the elastic element 55 extends, which can assist in the closing of the first base frame 1, causing the protrusion 5412 of the damping part 511 to rotate into the other recess 5411 of the positioning block 541 until the first base frame 1 rotates to the second rotation position, that is, the first base frame 1 folds onto the second base frame. Similarly, when the first base frame 1 is in the process of opening from closed, its working principle is reversed, and the process of opening from closed is achieved by the opposite direction of movement.

[0045] Understandably, in order to make the rotation of the first push arm 51 and the second push arm 31 smoother, each concave and convex surface is wavy, including smoothly connected protrusions and depressions.

[0046] Please see Figure 1 , Figure 2 , Figure 5 , Figure 5 yes Figure 1A three-dimensional structural diagram of the fixed frame. To prevent the positioning member 54 from shifting when moving closer to and away from the first push arm 51 and the second push arm 31, in some embodiments, the transmission assembly 5 further includes a fixed frame 56 fixed within the rotating member 4. The fixed frame 56 has a fixed post 561 on its end face, and both the positioning member 54 and the elastic member 55 are sleeved on the fixed post 561. Thus, during the transmission of the folding drive mechanism 100, the movement trajectories of the positioning member 54 and the elastic member 55 are limited to the axial direction of the fixed post 561. The fixed frame 56 may include a T-shaped body 562, with the fixed post 561 disposed on the lower end face of the T-shaped body 562.

[0047] It is understood that the fixed frame 56 moves together with the rotating member 4 within the rotating member 4, but there is no relative movement between them. The first push arm 51 and the second push arm 31 have relative rotation with respect to the rotating member 4. Therefore, in some embodiments, when the fixed frame 56 abuts against the first push arm 51 and the second push arm 31 and together with the positioning member 54 restricts the position of the first push arm 51 and the second push arm 31, the fixed frame 56 can be located on the side of the first push arm 51 and the second push arm 31 away from the positioning member 54, and both the driving member 52 and the driven member 53 are rotatably fixed on the fixed frame 56.

[0048] Please see Figure 1 , Figure 2 and Figure 6 In some specific embodiments, the transmission assembly 5 further includes a fixing member 57, which is used to fix the driving member 52 and the second push arm 31, the driven member 53 and the first push arm 51 to the opposite ends of the fixing frame 56 respectively.

[0049] The fixing member 57 can be a rod-shaped body and can be set on the left and right end faces of the T-shaped body 562 of the fixing frame 56. The positioning member 54 is provided with a through hole 542, and the damping part 511 is a bushing. It can be understood that the fixing member 57 can first pass through the fixing frame 56, and then sequentially pass through the damping part 511 and the through hole 542; that is, each fixing member 57 is connected to the positioning member 54 through the through hole 542. Since the force on the positioning member 54 mainly comes from the connection between the first push arm 51 and the second push arm 31 and the positioning member 54, that is, the abutment point between the damping part 511 and the positioning block 541, multiple elastic members 55 are used to make the movement of the positioning member 54 smoother. Each fixing member 57 is fitted with an elastic member 55 after passing through the through hole 542, and the elastic member 55 can elastically abut against the positioning member 54 and the rotating member 4.

[0050] It should be noted that the fixing post 561 on the fixing frame 56 and the elastic element 55 fitted on the fixing post 561, as well as the fixing element 57 and the elastic element 55 fitted on the fixing element 57, all play a role in limiting the movement of the positioning element 54. Therefore, in some other embodiments, only the fixing element 57 and the elastic element 55 fitted on the fixing element 57 can be provided to limit the movement of the positioning element 54.

[0051] In some applications, due to the size limitations of the rotating component 4, the driving component 52 and the driven component 53, which are respectively connected to the first push arm 51 and the second push arm 31 on both sides of the rotating component 4, cannot be directly connected together. An intermediate component is needed for transmission. In some embodiments, the transmission assembly 5 further includes a first intermediate component 521 and a second intermediate component 531 that mesh with each other. The driving component 52, the driven component 53, the first intermediate component 521, and the second intermediate component 531 are all gears. The first intermediate component 521 meshes with the driving component 52, and the second intermediate component 531 meshes with the driven component 53. That is, the driving component 52 transmits power to the driven component 53 through the first intermediate component 521 and the second intermediate component 531.

[0052] Specifically, the driving member 52, the first intermediate member 521, the second intermediate member 531, and the driven member 53 are arranged side by side along the extension direction perpendicular to the rotating member 4, and are located on the side of the fixed frame 56 opposite to the first push arm 51 and the second push arm 31. The fixed member 57 can be formed by extending the driving member 52 and the driven member 53, passing through the fixed frame 56 and connecting to the first push arm 51, the second push arm 31, and the positioning member 54, thereby rotatably connecting the driving member 52 and the driven member 53 to the fixed frame 56. The fixed member 57 is fixedly connected to the first push arm 51 and the second push arm 31, and does not rotate relative to them during movement. This allows the second push arm 31 to push the rotating member 4 to rotate, causing the driving member 52 to rotate relative to the rotating member 4, which in turn drives the driven member 53 to rotate, and consequently drives the first push arm 51 and the first base frame 1 to rotate. It is understandable that, in order to facilitate the fixed connection between the fixing member 57 and the first push arm 51 and the second push arm 31, the fixing member 57 can be a cylindrical rod with a plane along the axial direction, and the first push arm 51 and the second push arm 31 are respectively provided with a plane that cooperates with it, so as to prevent the first push arm 51 and the second push arm 31 from rotating relative to the fixing member 57.

[0053] The first intermediate component 521 and the second intermediate component 531 are provided with mounting shafts, which allow the first intermediate component 521 and the second intermediate component 531 to be rotatably connected to the fixed frame 56.

[0054] Please see Figure 1 , Figure 2 and Figure 3In some embodiments, at least one of the first base frame 1 and the second base frame is provided with a guide block 11, and a guide rail 111 is provided on the guide block 11. The first push arm 51 and / or the second push arm 31 are connected to the guide block 11 correspondingly provided on the first base frame 1 and the second base frame, and can slide along the guide rail 111 of the guide block 11. The guide block 11 on the first base frame 1 and the guide block 11 on the second base frame do not move relative to each other. However, when the first base frame 1 moves from the first rotation position to the second rotation position, when the semi-cylindrical rotating member 4 rotates to the vertical position, the first push arm 51 and the second push arm 31 are located on opposite sides of the rotating member 4, and the connection will move away from / close to the first base frame 1 and the second base frame during rotation. The first push arm 51 and the second push arm 31 move in the direction away from / close to the first base frame 1 and the second base frame, thereby compensating for the problem of insufficient length of the first push arm 51 and the second push arm 31 at the second rotation position. In addition, when the first substrate moves from the second rotation position to the first rotation position, the first push arm 51 and the second push arm 31 move in the direction close to the first base frame 1 and the second base frame, thereby eliminating the problem of excessive length of the first push arm 51 and the second push arm 31 at the first rotation position.

[0055] Please continue reading. Figure 1 , Figure 6 and Figure 7 , Figure 7 yes Figure 3 A three-dimensional structural diagram of the middle part. In some specific embodiments, the drive assembly 3 further includes a connector 34, a lead screw 32, and a push block 33 connected to the lead screw 32. The connector 34 is slidably mounted within the guide rail 111 and connects the push block 33 and the second push arm 31. It can be understood that the push block 33 can be located at the end of the lead screw 32, and the connector 34 can be a rod that passes through the second push arm 31 and the push block 33 and is inserted into the guide rail 111. Specifically, a bushing is provided at the opposite end of the second push arm 31 connected to the rotating member 4. The bushing is fitted onto the rod and located between the push block 33 and the guide block 11. Thus, during the process of the push block 33 pushing the second push arm 31, the connector 34 moves with the push block 33 and slides within the guide rail 111, while the second push arm 31 rotates around the connector 34.

[0056] In some embodiments, the drive assembly 3 further includes a drive source 35, and the second push arm 31 is a piston rod connected to the drive source 35, with the piston rod fixedly connected to the active member 52.

[0057] Please see Figure 2 , Figure 8 and Figure 9 , Figure 8 yes Figure 1 A schematic diagram of the exploded structure of another part of the structure; Figure 9 yes Figure 8 A three-dimensional structural diagram of the fixed shaft is shown. It can be understood that the first push arm 51 is mainly used to drive the rotation of the first base frame 1 relative to the second base frame, ensuring the stability of the connection between the first base frame 1 and the second base frame and the rotating member 4, and also enabling the rotating member 4 to rotate smoothly relative to the first base frame 1 and the second base frame, as well as the smooth rotation of the first base frame 1 relative to the rotating member 4. In some embodiments, the rotating member 4 is provided with a fixed shaft 41, and at least one of the first base frame 1 and the second base frame is provided with a connecting arm 42. The connecting arm 42 is arranged perpendicular to the extension direction of the rotating member 4 and is rotatably connected to the fixed shaft 41. Thus, during the rotation of the first base frame 1, the connecting arm 42 can rotate relative to the fixed shaft 41, thereby stabilizing the first base frame 1 during rotation. Furthermore, when the second base frame is connected to the fixed shaft 41 via the connecting arm 42, it ensures the smooth rotation of the rotating member 4 when it rotates. Also, since the connecting arm 42 of the second base frame is connected to the fixed shaft 41 within the rotating member 4, it also facilitates rotation rather than translation when the second push arm 31 pushes the rotating member 4.

[0058] In some specific embodiments, the fixed shaft 41 is an arc-shaped shaft, and each connecting arm 42 is provided with an arc-shaped groove 421, within which the arc-shaped shaft is accommodated. The arc-shaped shaft is fixed to the rotating member 4 by screws or pins, and the connecting arm 42 is secured between the arc-shaped shaft and the rotating member 4. It is understood that when the first base frame 1 is in the first rotational position, neither the fixed shaft 41 nor the connecting arm 42 fixedly connected within the rotating member 4 should extend beyond the upper surface of the rotating member 4.

[0059] More specifically, both the fixed shaft 41 and the arc groove 421 are semi-circular. Therefore, when the rotating member 4 rotates from the horizontal position to the vertical position, that is, when the first base frame 1 rotates from the first rotating position to the second rotating position, the rotating member 4 rotates 90° relative to the second base frame. Driven by the rotating member 4 and the driven member 53, the connecting arm 42 rotates 90° relative to the rotating member 4, thereby causing the first base frame 1 to rotate 180° relative to the second base frame and fold over the second base frame.

[0060] The fixed shaft 41 can be a split type, that is, each connecting arm 42 is equipped with a fixed shaft 41, so that it can be easily replaced when a fixed shaft 41 that is equipped with a connecting arm 42 is damaged.

[0061] It is also understood that mounting brackets 48 are arranged side by side along the extending direction of the rotating component 4 within the rotating component 4, and the mounting brackets 48 are fixedly mounted on the rotating component 4. Preferably, the mounting brackets 48 are located at both ends of the rotating component 4, and the transmission assembly 5 is located in the middle of the rotating component 4. The mounting brackets 48 on the rotating component 4 form receiving grooves 481, the connecting arm 42 is received in the receiving grooves 481, and the fixed shaft 41 is received in the arc-shaped grooves 421 of the connecting arm 42 and fixed together with the mounting brackets 48. Among them, the inner sidewall of the mounting brackets 48 is provided with arc-shaped guide protrusions 482, and the sidewall of the connecting arm 42 is provided with arc-shaped guide grooves 422. The arc-shaped guide protrusions 482 and the arc-shaped guide grooves 422 are used to guide the rotation of the connecting arm 42.

[0062] More specifically, the fixed shaft 41 is also provided with a mounting surface 411, which is a plane, and the mounting bracket 48 is provided with a mounting groove 483, which is provided with a plane that mates with the mounting surface 411. Thus, when the fixed shaft 41 is fixed to the mounting bracket 48, it is convenient to install and fix the fixed shaft 41.

[0063] In some more specific embodiments, the fixed shaft 41 includes a first fixed shaft 413 and a second fixed shaft 414 that are not coaxially arranged, and the connecting arm 42 includes a first connecting arm 423 that is fixedly connected to the first base frame 1 and a second connecting arm 424 that is fixedly connected to the second base frame. The first fixed shaft 413 is rotatably connected to the first connecting arm 423 of the first base frame 1, and the second fixed shaft 414 is rotatably connected to the second connecting arm 424 of the second base frame. There are two first fixed shafts 413 and two second fixed shafts 414, which are alternately arranged. The first base frame 1 and the second base frame are each provided with two first connecting arms 423 and two connecting arms 424 at corresponding intervals, thereby making the force on the first base frame 1 and the second base frame more even. It is understood that the lengths of the axes of the non-coaxial first fixed shaft 413 and the second fixed shaft 414 in the direction perpendicular to the extension of the rotating member 4 are related to the folding radius of the flexible display screen. This ensures that the first base frame 1 and the second base frame have sufficient space after being folded and flipped, guaranteeing that the flexible display screen mounted on the first base frame 1 and the second base frame can be accommodated within the space without breaking after being folded at a certain folding radius. It is also understood that the upper surface of the component disposed within the rotating member 4 does not exceed the upper surface of the rotating member 4. Preferably, the upper surface of the component disposed within the rotating member 4 is flush with the upper surface of the rotating member 4.

[0064] Therefore, the folding drive mechanism 100 in this application folds and flips its first base frame 1 relative to the second base frame as follows: the drive source 35 in the drive assembly operates by using the lead screw 32 to move the push block 33 in a direction perpendicular to the rotating member 4, thereby causing the connecting member 34 connected to the push block 33 to slide in the guide rail 111 within the guide block 11, and causing the second push arm 31, pivotally connected to the connecting member 34, to push the rotating member 4 in a direction perpendicular to the rotating member 4. The second push arm 31 rotates relative to the connecting member 34 and pushes the rotating member 4 to rotate. The arc-shaped guide protrusion 482 on the mounting bracket 48 used to fix the second fixed shaft 414 rotates in the arc-shaped guide groove 422 on the second connecting arm 424, thereby causing the rotating member 4 to rotate around the second fixed shaft 414 relative to the second base frame. Furthermore, since the active member 52 is mounted on the rotating member 4, and the fixed member 57 is fixedly connected to the second push arm 31 and the first push arm 51, the rotation of the rotating member 4 causes the first intermediate member 521 to rotate relative to the active member 52, which in turn drives the second intermediate member 531 to rotate. This, in turn, drives the first push arm 51 to rotate relative to the rotating member 4 via the driven member 53, thereby causing the first base frame 1 to rotate relative to the rotating member 4 around the first fixed axis 413. During the rotation of the rotating member 4, the damping portions 511 of the second push arm 31 and the first push arm 51 abut against the positioning block 541 and rotate relative to the positioning block 541 to compress the elastic member 55, thereby increasing the frictional torque during rotation. This makes the rotation of the first base frame 1 more stable and provides assistance for the closing of the first base frame 1. It is understandable that when the rotating component 4 rotates 90° relative to the second base frame around the second fixed axis 414, the first intermediate component 521 also rotates 90° relative to the driving component 52, thereby causing the first base frame 1 to rotate 90° relative to the rotating component 4 around the first fixed axis 413. Consequently, the first base frame 1 rotates 180° relative to the second base frame and flips and folds onto the second base frame. It is understood that the process of unfolding the first base frame 1 relative to the second base frame is based on the same principle as the flipping and folding process, only the direction of movement is reversed, and will not be elaborated further here.

[0065] Another aspect of this application provides an electronic device comprising the folding drive mechanism 100 and a flexible folding screen as described in any of the above embodiments. A first base frame 1 and a second base frame are used to support the flexible folding screen. Specifically, both the first base frame 1 and the second base frame are equipped with fixing devices for securing the flexible folding screen. These fixing devices secure a portion of the flexible folding screen to the second base frame and a portion to the first base frame 1, allowing the flexible display screen to bend at the location corresponding to the rotating member 4. Therefore, when storage is required, under the action of the drive assembly 3 and the transmission assembly 5, the first base frame 1 rotates and folds above the second base frame, causing the flexible folding screen to bend at the location corresponding to the rotating member 4. When the display screen is needed, the rotating member 4 rotates, and the first base frame 1 and the flexible folding screen unfold.

[0066] Another aspect of this application provides a vehicle including the aforementioned electronic device. In this case, the electronic device is an in-vehicle display installed within the vehicle. It is understood that the in-vehicle display can be installed on the rear armrest of the vehicle, and the drive component 3 can be activated via physical buttons, touch buttons, voice control, fingerprint buttons, etc.

[0067] In the description of this application, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0068] The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A folding drive mechanism characterized by, Includes a first base frame, a second base frame, a drive assembly, rotating components, and a transmission assembly; The rotating component is rotatably connected to both the first base frame and the second base frame; The transmission assembly includes a first push arm, a driving member and a driven member connected by transmission, both of which are disposed on the rotating member; the first push arm connects the driven member and the first base frame; The drive assembly is fixed to the second base frame, and the drive assembly includes a second push arm, which is connected to the driving member; wherein, The drive assembly causes the second push arm to move and drives the rotating member and the driving member to rotate. The driving member drives the driven member to rotate, thereby causing the first push arm and the first base frame to rotate relative to the rotating member. The second base frame is provided with a guide block, and the guide block is provided with a guide rail; The drive assembly also includes a connector, a lead screw, and a push block connected to the lead screw; The connector is slidably installed in the guide rail, and the connector connects the push block and the second push arm. The connector is rotatably connected to the second push arm. When the first base frame rotates relative to the second base frame, the rotating component rotates synchronously with the first base frame.

2. The folding drive mechanism according to claim 1, characterized in that, At least one of the first push arm and the second push arm is provided with a damping part; The transmission assembly further includes a positioning element and an elastic element disposed on the rotating component, wherein the positioning element includes a positioning block; The positioning block and the damping part abut against each other, and the end faces of the positioning block and the damping part that abut against each other are both concave and convex surfaces, and the concave and convex surfaces cooperate with each other. The elastic element elastically abuts against the positioning element and the rotating element.

3. The folding drive mechanism according to claim 2, characterized in that, Each of the aforementioned uneven surfaces is wavy, comprising smoothly connected protrusions and recesses.

4. The folding drive mechanism according to claim 2, characterized in that, The transmission assembly also includes a fixing frame fixed inside the rotating component; Both the driving member and the driven member are rotatably fixed on the fixed frame; The end face of the fixed frame is provided with a fixed post, and the positioning member and the elastic member are both sleeved on the fixed post.

5. The folding drive mechanism according to claim 4, characterized in that, The transmission assembly also includes a fixing component; The fixing member fixes the driving member and the second push arm, the driven member and the first push arm to the opposite end faces of the fixing frame, respectively; The positioning element is also connected to each of the fixing elements, and there are multiple elastic elements, with each fixing element also fitted with an elastic element.

6. The folding drive mechanism according to claim 5, characterized in that, The transmission assembly further includes a first intermediate component and a second intermediate component that mesh with each other, wherein the first intermediate component meshes with the driving component and the second intermediate component meshes with the driven component; the driving component, the driven component, the first intermediate component, and the second intermediate component are all gears.

7. The folding drive mechanism according to claim 1, characterized in that, The first base frame is provided with a guide block, and the guide block is provided with a guide rail; The first push arm is connected to the guide block and can slide along the guide rail.

8. The folding drive mechanism according to claim 1, characterized in that, The drive assembly further includes a drive source, and the second push arm is a piston rod connected to the drive source; The piston rod is fixedly connected to the driving component.

9. The folding drive mechanism according to any one of claims 1-8, characterized in that, The rotating component has a fixed shaft inside; At least one of the first base frame and the second base frame is provided with a connecting arm, which is rotatably connected to the fixed shaft.

10. The folding drive mechanism according to claim 9, characterized in that, The fixed shaft is an arc-shaped shaft; Each of the connecting arms is provided with an arc-shaped groove, which is rotatably connected to the arc-shaped shaft.

11. The folding drive mechanism according to claim 10, characterized in that, The fixed shaft includes a first fixed shaft and a second fixed shaft that are not coaxially arranged; both the first base frame and the second base frame are provided with two connecting arms at intervals; wherein, the connecting arms of the first base frame and the second base frame are respectively rotatably connected to the first fixed shaft and the second fixed shaft; And / or, each of the arc-shaped shafts and each of the arc-shaped grooves is semi-circular.

12. An electronic device, characterized in that, Includes the folding drive mechanism and flexible folding screen as described in any one of claims 1-11; The first base frame and the second base frame are used to support the flexible folding screen.

13. A vehicle, characterized in that, Including the electronic device as described in claim 12.

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