WO2024051269A1

WO2024051269A1 - Electronic device and drive mechanism thereof

Info

Publication number: WO2024051269A1
Application number: PCT/CN2023/101466
Authority: WO
Inventors: 成功
Original assignee: Oppo广东移动通信有限公司
Priority date: 2022-09-07
Filing date: 2023-06-20
Publication date: 2024-03-14
Also published as: CN117672082A

Abstract

An electronic device (100) and a drive mechanism thereof. A housing assembly (10) of the electronic device (100) comprises a first housing (11) and a second housing (12) which are slidably connected; a first part (21) of a flexible display screen (20) is fixedly connected to the first housing (11) and is exposed out of the housing assembly (10), and the second housing (12) can slide relative to the first housing (11), so that a second part (22) can be concealed in the housing assembly (10) or at least partially exposed out of the housing assembly (10); a first rotating wheel (31) of a driving assembly (30) is rotatably arranged on the second housing (12), the second part (22) is wound on the first rotating wheel (31), and the second rotating wheel (32) can rotate relative to the first rotating wheel (31) and apply acting force to the end portion of the second part (22) distant from the first part (21). According to the electronic device (100), the driving assembly (30) comprising the first rotating wheel (31) and the second rotating wheel (32) is used to drive the flexible display screen (20) to extend and retract, so that the arrangement of the first rotating wheel (31) and the second rotating wheel (32) improves the space utilization rate of the electronic device (100).

Description

Electronic devices and driving mechanisms thereof

【Technical field】

The present application relates to the technical field of electronic equipment, and in particular, to an electronic device and its driving mechanism.

【Background technique】

Currently, in order to adjust the display area, two relatively sliding shells can be used to drive the movement of the display screen to pull out the part hidden inside the electronic device to adjust the size of the screen. When it is necessary to change electronic devices such as mobile phones, When displaying the area, the flexible display screen can be pulled out from the housing. In related technologies, a driving mechanism can be used to expand or reduce the display area of a flexible display screen. Therefore, how to design a driving mechanism for driving a flexible display screen has become a research direction for researchers.

[Content of the invention]

A first aspect of the present application provides an electronic device. The electronic device includes a housing assembly, a flexible display screen, and a driving assembly. The housing assembly includes a first shell and a second shell that are slidably connected; the flexible display screen includes a third shell. One part and a second part, the first part is fixedly connected to the first shell and exposed outside the housing assembly, and the second shell can slide relative to the first shell so that the second part can be hidden Within the housing assembly or at least partially outside the housing assembly; the drive assembly includes a first wheel and a second wheel, the first wheel being rotatably disposed on the second housing on the second part, the second part is wound around the first wheel, and the second wheel can rotate relative to the first wheel and apply force to the end of the second part away from the first part. force.

A second aspect of this application provides a driving mechanism, which includes:

A shell assembly, including a first shell and a second shell that are slidably connected;

A driving assembly, the driving assembly includes a first rotating wheel and a second rotating wheel, the first rotating wheel is rotatably arranged on the second housing, and a flexible display screen is arranged around the first rotating wheel, The second rotating wheel can rotate relative to the first rotating wheel and exert force on the flexible display screen at an end of the flexible display screen away from the first rotating wheel, thereby enabling the flexible display screen to Hidden within the housing component or at least partially exposed outside the housing component.

A third aspect of the present application provides an electronic device, which includes a flexible display screen and the driving mechanism described in the above embodiment.

[Picture description]

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

Figure 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

Figure 2 is another structural schematic diagram of an electronic device according to an embodiment of the present application;

Figure 3 is a schematic diagram of the internal structure of the housing assembly of the electronic device according to the embodiment of the present application;

4 is a schematic plan view of the internal structure of the housing assembly of the electronic device according to the embodiment of the present application;

Figure 5 is a schematic structural diagram of the driving assembly according to the embodiment of the present application from a certain perspective;

Figure 6 is a schematic structural diagram of the driving assembly of the embodiment of the present application from another perspective;

Figure 7 is a schematic structural diagram of the driving assembly of the embodiment of the present application from another perspective;

Figure 8 is a schematic structural diagram of the support belt according to the embodiment of the present application.

Description of main component symbols:
Electronic device 100; housing assembly 10; first shell 11, pulley 111, second shell 12; flexible display screen 20, first part 21, second part 22, support belt 221, groove 2211, bending part 2212, magnet 2213; Driving assembly 30, first runner 31, protrusion 311, first gear teeth 3111, linkage mechanism 312, sun gear 3121, planet gear 3122, planet carrier 3123, internal ring gear 313, second runner 32, The first motor 33, the second motor 34, and the recovery belt 35.

【Detailed ways】

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as limiting the present application.

The following disclosure provides many different embodiments or examples for implementing the various structures of the present application. To simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the application. Furthermore, this application may repeat reference numbers and/or reference letters in different examples, such repetition being for the purposes of simplicity and clarity and does not by itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, this application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

In a first aspect, an embodiment of the present application provides an electronic device, including:

A flexible display screen includes a first part and a second part. The first part is fixedly connected to the first shell and exposed outside the shell assembly. The second shell can slide relative to the first shell so that the The second part can be hidden within the housing assembly or at least partially exposed outside the housing assembly;

Driving assembly, the driving assembly includes a first rotating wheel and a second rotating wheel, the first rotating wheel is rotatably arranged on the second housing, and the second part is arranged around the first rotating wheel. On the other hand, the second wheel can rotate relative to the first wheel and exert force on the end of the second part away from the first part.

Optionally, when the first wheel rotates in the first direction, it can drive the second part to expand and be exposed outside the housing assembly; when the second wheel rotates in the first direction, The second part can be driven to retract into the housing assembly.

Optionally, the second rotating wheel is coaxially arranged with the first rotating wheel, and the rotation axis of the first rotating wheel is perpendicular to the direction in which the second housing slides relative to the first housing.

Optionally, the ratio of the maximum outer diameter rotational linear speed of the first runner to the maximum outer diameter rotational linear speed of the second runner is 1:3.

Optionally, the driving assembly includes a support belt fixed to the second part, the outer circumferential surface of the first runner is provided with a plurality of first gear teeth, and the plurality of first gear teeth extend along the first A runner is arranged at circumferential intervals, and the support belt wraps around the outer circumferential surface of the first runner and engages with the first gear teeth.

Optionally, the lateral circumferential surface of the first runner has a protrusion extending along the axial direction of the first runner, and the first gear teeth are provided on the outer circumferential surface of the protrusion.

Optionally, the drive assembly includes a linkage mechanism connected between the first runner and the second runner, the linkage being configured such that when the first runner and the second runner When one of the wheels rotates in the first direction, the other wheel synchronously rotates in a second direction, and the second direction is opposite to the first direction.

Optionally, the linkage mechanism includes a sun gear, a planet gear and a planet carrier, the inner circumferential surface of the first runner is provided with an internal ring gear, and the planet wheel is rotatably provided on the planet carrier, so The planet gears are meshed with the sun gear and the ring gear respectively, and the second rotating wheel is fixed on the planet carrier.

Optionally, the driving assembly further includes a first motor and a second motor. The first motor is used to drive one of the first rotating wheel, the sun wheel and the planet carrier to rotate. The two motors are used to drive the other one of the first rotating wheel, the sun gear and the planet carrier to rotate, so as to rotate the first rotating wheel and/or the second rotating wheel.

Optionally, the first motor and the second motor are respectively disposed on opposite sides of the first runner in the axial direction.

Optionally, the first motor is used to drive the first rotating wheel to rotate, and the second motor is used to drive the second rotating wheel to rotate; wherein when the first motor rotates, the second rotating wheel rotates. The motor is in an idling state, and when the second motor rotates, the first motor is in an idling state.

Optionally, the driving assembly further includes a recovery belt, one end of the recovery belt is fixed on the second wheel, and the other end is fixed on the end of the second part away from the first part, the The second wheel applies a force through the recovery belt to the end of the second part away from the first part.

Optionally, the driving assembly further includes a pulley fixed on the first shell, the recovery belt is wound around the pulley, and both ends of the recovery belt are located on the same side of the pulley.

In a second aspect, embodiments of the present application provide a driving mechanism, including:

Optionally, the second runner is coaxially arranged with the first runner, and the rotation axis of the first runner is perpendicular to the direction in which the second shell slides relative to the first shell; The ratio of the maximum outer diameter rotational linear speed of the first runner to the maximum outer diameter rotational linear speed of the second runner is 1:3.

Optionally, the driving assembly includes a support belt fixed to the second part, the outer circumferential surface of the first runner is provided with a plurality of first gear teeth, and the plurality of first gear teeth extend along the first A runner is arranged at circumferential intervals, and the support belt is wound around the outer circumferential surface of the first runner and meshes with the first gear teeth; the lateral circumferential surface of the first runner has a lateral surface along the An axially extending protruding portion of the first rotating wheel, the first gear teeth are arranged on the outer peripheral surface of the protruding portion.

Optionally, the drive assembly includes a linkage mechanism connected between the first runner and the second runner, the linkage being configured such that when the first runner and the second runner When one of the wheels rotates in the first direction, the other rotates in a second direction synchronously, and the second direction is opposite to the first direction; the linkage mechanism includes a sun wheel, a planet wheel and a planet wheel. carrier, the inner circumferential surface of the first runner is provided with an internal ring gear, the planet wheels are rotatably arranged on the planet carrier, and the planet wheels mesh with the sun gear and the internal ring gear respectively. , the second runner is fixed on the planet carrier.

Optionally, the driving assembly further includes a first motor and a second motor. The first motor is used to drive one of the first rotating wheel, the sun wheel and the planet carrier to rotate. Two motors are used to drive the other one of the first runner, the sun gear and the planet carrier to rotate, so that the first runner and/or the second runner rotate; the first motor is used In order to drive the first runner to rotate, the second motor is used to drive the second runner to rotate; when the first motor rotates, the second motor is in an idling state. When the motor rotates, the first motor is in an idling state.

Optionally, the driving assembly further includes a recovery belt and a pulley, one end of the recovery belt is fixed on the second runner, and the other end is fixed on the end of the second part away from the first part, The second wheel applies force to the end of the second part away from the first part through the recovery belt; the pulley is fixed on the first shell, and the recovery belt is wound around the pulley. On the pulley, both ends of the recovery belt are located on the same side of the pulley.

In a third aspect, embodiments of the present application provide an electronic device, which includes a flexible display screen and the driving mechanism described in the above embodiments.

Referring to FIGS. 1 to 4 , the electronic device 100 in the embodiment of the present application includes a housing assembly 10 , a flexible display screen 20 and a driving assembly 30 , wherein both the housing assembly 10 and the driving assembly 30 constitute a driving mechanism. Optionally, the housing assembly 10 in this embodiment includes a first shell 11 and a second shell 12 that are slidably connected; the flexible display screen 20 includes a fixed part 21 and a second part 22, and the first part 21 is fixed to the first shell 11 Connected and exposed outside the housing assembly 10 , the second shell 12 can slide relative to the first shell 11 so that the second portion 22 can be hidden within the housing assembly 10 or at least partially exposed from within the housing assembly 10 to the shell. Outside the body assembly 10; the driving assembly 30 includes a first runner 31 and a second runner 32. The first runner 31 is rotatably arranged on the second housing 12, and the second part 22 is arranged around the first runner 31. The second wheel 32 can rotate relative to the first wheel 31 and exert force on the end of the second part 22 away from the first part 21 .

The electronic device 100 in the embodiment of the present application uses a driving assembly 30 with a first rotating wheel 31 and a second rotating wheel 32 to drive the flexible display screen 20. The first rotating wheel 31 is used to realize the movement of the second part 22 of the flexible display screen 20. When unfolded, the second rotating wheel 32 is used to retract the second part 22 of the flexible display screen 20 , and the arrangement of the first rotating wheel 31 and the second rotating wheel 32 can improve the space utilization of the electronic device 100 .

Specifically, the first shell 11 and the second shell 12 of the housing assembly 10 can be slidably arranged relative to each other. The first shell 11 can be used as a main support structure in the electronic device 100, and the first shell 11 can accommodate components such as speakers, cameras, circuit boards, and batteries. The second shell 12 may have the same structure as the first shell 11 , so that when the second shell 12 is slid and unfolded relative to the first shell 11 , the flexible display screen 20 can be exposed flat and beautiful. The first part 21 of the flexible display screen 20 can be fixedly connected to the first shell 11 and exposed outside the shell assembly 10 and fixed to the surface of the first shell 11 through adhesive. The second portion 22 may be concealed within the housing assembly 10 , possibly within the second shell 12 . The second shell 12 can be directed relative to the first shell 11 Slide in a direction away from the first shell 11 in parallel to expose the second part 22 of the flexible display screen 20 hidden in the shell assembly 10 outside the shell assembly 10 .

The first rotating wheel 31 of the driving assembly 30 is rotatably arranged on the second housing 12. The first rotating wheel 31 can be connected to the driving device and can rotate relative to the housing driven by the driving device. The outer surface of the first rotating wheel 31 can fit with the inner surface of the second part 22 of the flexible display screen 20 located on the second shell 12 , that is, the second part 22 can be wound around the first rotating wheel 31 .

The second wheel 32 can be fixedly connected to an end of the second part 22 away from the first part 21 through a connecting piece. During the rotation process, the second wheel 32 can drive the second part 22 to be recovered through the connecting piece, so that the second part 22 exposed outside the housing assembly 10 is retracted into the housing assembly 10 .

It can be understood that during the process of winding and retracting the electronic device 100, the flatness of the second part 22 and the first part 21 are consistent. At the same time, the electronic device 100 fully opens and retracts the second part 22 to both sides of the housing assembly 10. In addition to this extreme form, other states can also be included. For example, the second shell 12 is not fully expanded relative to the first shell 11 , that is, the second portion 22 may be partially opened. At this time, the second shell 12 can move to any position relative to the first shell 11 and stop, and the second part 22 is partially exposed outside the shell assembly 10 for display together with the first part 21 . Therefore, the display area of the electronic device 100 can be realized by partially unfolding the second part 22 according to user requirements. For example, the user may expose the second part 22 completely, or may expose 10%, 20%, etc. of the second part 22, which is not limited here.

The electronic device 100 may be a mobile terminal device equipped with a display device, such as a smartphone or a tablet computer, or may be a device capable of mounting a display device, such as a game device, a car computer, a notebook computer, or a video player. The details are not limited here.

Please refer to FIGS. 1 to 4 . In some embodiments, when the first rotating wheel 31 rotates in the first direction, it can drive the second part 22 to expand and be exposed outside the housing assembly 10 ; the second rotating wheel 32 rotates along the first direction. When rotated in the first direction, the second part 22 can be driven to retract into the housing assembly 10 .

In this way, the first rotating wheel 31 is responsible for driving the second part 22 to expand, and the second rotating wheel 32 is responsible for driving the second part 22 to retract.

Specifically, the first rotation direction when the first rotating wheel 31 drives the second part 22 to unfold and emerge from the housing assembly 10 may be the direction in which the first rotating wheel 31 rotates counterclockwise along the rotation axis. At this time, The second part 22 wound on the first wheel 31 may be gradually exposed from the housing assembly 10 .

When it is necessary to recycle the exposed second part 22 of the flexible display screen 20 , the second wheel 32 can rotate along the first direction to drive the second part 22 to retract into the housing assembly 10 , wherein the second wheel 32 moves along the first direction. The rotation direction of the first direction can be the same as the rotation direction of the first runner 31 along the first direction, that is, the second runner 32 also rotates counterclockwise along the first direction to drive the second part 22 away from the first part 21 One end moves toward the first shell 11, thereby driving the second part 22 to retract and snap into the interior of the assembly.

Please refer to Figures 1-4. In some embodiments, the second wheel 32 is coaxially arranged with the first wheel 31, and the rotation axis of the first wheel 31 is perpendicular to the second shell 12 relative to the first shell 11. The direction of sliding.

In this way, the coaxial arrangement of the second runner 32 and the first runner 31 improves the space utilization in the second housing 12 and thereby increases the overall space of the electronic device 100 .

Specifically, the second wheel 32 and the first wheel 31 can be disposed along the center of the same rotation axis. It can be understood that the rotation axis of the first wheel 31 is in the process of unfolding with the second part 22, and the second shell 12 is far away from the first part. The sliding direction of the shell 11 is perpendicular to the axis. The second rotating wheel 32 can rotate relative to the first rotating wheel 31 driven by the driving device.

Referring to FIGS. 1 to 4 , in some embodiments, the ratio of the maximum outer diameter rotational linear speed of the first runner 31 to the maximum outer diameter rotational linear speed of the second runner 32 is 1:3.

In this way, the first runner 31 and the second runner 32 have a maximum outer diameter rotation linear speed relationship with a ratio of 1:3, so that the first runner 31 and the second runner 32 drive the second part 22 to perform the unfolding and recovery process. more stable.

Specifically, if the first runner 31 rotates in the first direction, the outermost circumferential edge of the first runner 31 has a rotational linear speed V1, which can drive the second part 22 to expand in a direction away from the first part 21 . At this time, if the first runner 31 is rotating in the first direction, and if the rotation linear speed of the outermost circumferential edge of the second runner 32 driven by the first runner 31 is V2, then at this time V2 is three times V1.

Please refer to FIGS. 1 to 4 . In some embodiments, when the first rotating wheel 31 rotates in the first direction to drive the second part 22 to unfold and be exposed from the housing assembly 10 , the second rotating wheel 32 moves along the first direction. The second direction of rotation is opposite to the first direction and the second direction.

Specifically, the first rotating wheel 31 may rotate counterclockwise in the first direction to drive the second part 22 to unfold, that is, the end of the second part 22 close to the first part 21 gradually unfolds. At this time, the end of the second part 22 away from the first part 21 gradually moves away from the first shell 11 and will drive the second runner 32 in the opposite direction of rotation that drives the second part 22 to retract into the housing assembly 10 . The first rotating wheel 31 drives the second part 22 to unfold and emerge from the housing assembly 10 in the same direction as the second rotating wheel 32 drives the second part 22 to retract into the housing assembly 10 . Therefore, the second direction may be opposite to the first direction, that is, the second direction may be clockwise.

Please refer to Figures 3, 4 and 8. In some embodiments, the driving assembly 30 includes a support belt 221 disposed on the second part 22, and the outer circumferential surface of the first wheel 31 is provided with a plurality of first gear teeth. 3111, a plurality of first gear teeth 3111 are arranged at intervals along the circumferential direction of the first runner 31, and the support belt 221 is wound around the outer circumferential surface of the first runner 31 to engage with the first gear teeth 3111.

In this way, the provision of the support belt 221 can help the first rotating wheel 31 of the driving assembly 30 to provide supporting force when the driving second part 22 is exposed from the housing assembly 10 .

Specifically, the support belt 221 may be provided on the side where the second part 22 of the flexible display screen 20 is in winding contact with the first wheel 31 . The support belt 221 can be in the form of a crawler structure, and can have a plurality of bending portions 2212 that are connected and rotated with each other. The plurality of bending portions 2212 can be connected through bendable windings of structures such as pins. Each bending portion 2212 may be provided with one or more spaced grooves 2211 . A magnet 2213 can be provided on each bending portion 2212 . The number of magnets 2213 may be multiple, and the plurality of magnets 2213 are arranged at intervals inside the support belt 221 . The magnet 2213 allows the support belt 221 to be fixed inside the second part 22 through magnetic adsorption. In addition, the magnet 2213 can keep the support belt 221 in a curved shape when it is wound around the first runner 31 to ensure that the support belt 221 is connected to the first runner 31 Valid connection.

Referring to FIGS. 5-8 , in some embodiments, the lateral circumferential surface of the first runner 31 has a protrusion 311 extending along the axial direction of the first runner 31 , and the first gear teeth 3111 are disposed on the protrusion. on the outer peripheral surface of the outlet 311. In this way, the first gear teeth 3111 can engage with the support belt 221 to unfold the second part 22 during the rotation of the first wheel 31 .

Specifically, the lateral peripheral surface of the first rotating wheel 31 may have a protruding portion 311 extending toward the second rotating wheel 32 direction. A plurality of first gear teeth 3111 are provided on the outer circumferential surface of the support belt 311, and the plurality of first gear teeth 3111 can mesh and match with the grooves 2211 on the support belt 221. When the first gear teeth 3111 rotate in the first direction, the support and expansion of the support belt 221 can provide a driving force for the second part 22 to expand and be exposed from the housing assembly 10 .

The first gear teeth 3111 can be provided on the second runner 32 of the portion of the first runner 31 that extends axially toward the second runner 32 . The shape of the first gear teeth 3111 can be consistent with the groove on the support belt 221 2211 shape matching, when the first wheel 31 rotates in the first direction, the first gear teeth 3111 engage with the support belt 221 and cooperate with the first wheel 31 to support the second part 22 for expansion. It should be noted that in Figure 4, the structure of the first gear teeth 3111 is not shown.

Please refer to FIGS. 5-7 . In some embodiments, the driving assembly 30 includes a linkage mechanism 312 disposed in the first runner 31 . The linkage mechanism 312 connects the first runner 31 and the second runner 32 . The linkage mechanism 312 is disposed in the first runner 31 . 312 links the first runner 31 and the second runner 32 during the movement.

In this way, by arranging the power structure 312 in the first runner 31 , the driving assembly 30 has a compact structure and takes up little space, effectively improving the utilization of the first housing 11 and improving the performance of the electronic device 100 .

Specifically, the power structure 312 can be a gear structure, and the power structure 312 can connect the first runner 31 and the second runner 32 through gear interaction, so that when the power structure 312 moves, it can drive the first runner 31 and the second runner 32 . The runner 32 performs linkage. That is, the power structure 312 can drive the first runner 31 to move and at the same time cause the second runner 32 to also move.

Please refer to Figures 5-7. In some embodiments, the power structure 312 includes a sun gear 3121, a planet gear 3122 and a planet carrier 3123. The inner circumferential surface of the first runner 31 is provided with an internal ring gear 313, and the planet gear 3122 Set on the planet carrier 3123, the planet gears 3122 mesh with the sun gear 3121 and the internal ring gear 313 respectively, and the second rotating wheel 32 is fixed on the planet carrier 3123.

Specifically, the sun gear 3121 of the power structure 312 may be located in a central area inside the first runner 31 , and the sun gear 3121 may mesh with the internal ring gear 313 on the inner circumferential surface of the first runner 31 through the planet gear 3122 . That is, the planet gear 3122 can mesh with the gear on the sun gear 3121 and the internal ring gear 313 on the inner circumferential surface of the first rotating wheel 31 at the same time. The number of planetary gears 3122 may be multiple, and the plurality of planetary gears 3122 may be equidistantly distributed in mesh with the inner peripheral surface of the first rotating wheel 31 and the internal ring gear 313 . The planet carrier 3123 can connect multiple planet wheels 3122 at the same time and is fixedly connected with the second runner 32 .

When the power structure 312 is linked, the sun gear 3121 can rotate in a certain direction, and then the planet gears 3122 can be driven to rotate synchronously in the opposite direction to the rotation of the sun gear 3121. When multiple planet gears 3122 rotate synchronously, the planets The carrier 3123 rotates in the same direction as the planet wheel 3122 rotates. Of course, the planet gear 3122 may rotate in a certain direction and then drive the sun gear 3121 and the planet carrier 3123 to rotate, or the planet carrier 3123 may rotate in a certain direction and then the sun gear 3121 and the planet gear 3122 rotate. The details are not discussed here. Give detailed explanation.

Please refer to Figures 4-7. In some embodiments, the driving assembly 30 also includes a first motor 33 and a second motor 34. The first motor 33 is used to drive the first runner 31, the sun gear 3121 and the planet carrier 3123. One of them rotates, and the second motor 34 is used to drive the other one of the first rotating wheel 31 , the sun gear 3121 and the planet carrier 3123 to rotate, so that the first rotating wheel 31 and/or the second rotating wheel 32 rotate.

In this way, using the first motor 33 and the second motor 34 as the power source to drive one and the other of the first runner 31 , the sun gear 3121 and the planet carrier 3123 respectively can realize the control of the first runner 31 and/or the second The drive of the runner 32.

Specifically, the first motor 33 is used to drive one of the first rotating wheel 31, the sun wheel 3121 and the planet carrier 3123 to rotate, The second motor 34 is used to drive the other one of the first rotating wheel 31 , the sun gear 3121 and the planet carrier 3123 to rotate. That is, when the first motor 33 drives the first runner 31, the second motor 34 can be used to drive the sun gear 3121 or the planet carrier 3123 to rotate, so that only the first runner 31 rotates or only the second runner 32 rotates or the first runner 31 and the second wheel 32 both rotate.

When the first motor 33 drives the sun gear 3121, the second motor 34 can be used to drive the first rotating wheel 31 or the planet carrier 3123 to rotate, so that only the first rotating wheel 31 rotates or only the second rotating wheel 32 rotates or the first rotating wheel 31 and the second wheel 32 both rotate.

When the first motor 33 drives the planet carrier 3123, the second motor 34 can be used to drive the sun gear 3121 or the first runner 31 to rotate, so that only the first runner 31 rotates or only the second runner 32 rotates or the first runner 31 and the second wheel 32 both rotate.

Please refer to Figures 4-7. In some embodiments, the first motor 33 is used to drive the first wheel 31 to rotate, and the second motor 34 is used to drive the second wheel 32 to rotate; wherein when the first motor 33 rotates , the second motor 34 is in an idling state, and when the second motor 34 rotates, the first motor 31 is in an idling state. In this way, one motor is running while the other motor is idling to prevent mutual interference between the motors.

Specifically, when the first motor 33 is used to drive the first rotating wheel 31, the second part 22 needs to be unfolded, and the rotating shaft of the first motor 33 can rotate counterclockwise to drive the first rotating wheel 31 to rotate counterclockwise. The two parts 22 are unfolded. At this time, the second motor 34 connected to drive the sun gear 3121 or the planet carrier 3123 to rotate can remain idling, that is, the second motor 34 does not work, and the sun gear 3121 or the planet carrier 3123 only passes through the power structure 312 The movement pattern follows the rotation of the first wheel 31. Similarly, when the second motor 34 is working, the first motor 33 is idling to complete the deployment or recovery of the second part 22. The principle can be similar to when the first motor 33 is working and the second motor 34 is idling. .

In addition, in some embodiments, the first motor 33 can also work, and the second motor 34 can work synchronously. At this time, the first motor 33 can drive the first wheel 31 to rotate and drive the second part 22 to unfold, At the same time, the second motor 34 can drive the sun gear 3121 or the planet carrier 3123 to rotate and drive the second part 22 to be recycled. It can be understood that by adjusting the working power of the first motor 33 and the second motor 34, the deployment speed and recovery speed of the second part 22 can be adjusted, thereby achieving the simultaneous deployment and recovery of the second part 22.

Referring to FIGS. 4 to 7 , in some embodiments, the first motor 33 and the second motor 34 are respectively disposed on opposite sides of the first runner 31 in the axial direction. In this way, the first motor 33 and the second motor 34 are arranged near the axial position of the first runner 31, which can effectively utilize the space in this position, thereby improving the designability of the space within the housing assembly 10.

Specifically, the first motor 33 can be disposed on a side of the first runner 31 away from the second runner 32 , and the second motor 34 can be in an axially opposite direction to the first motor 33 , that is, the second motor 34 can be disposed on One side of the second runner 32 . It can be understood that the first motor 33 and the second motor 34 can be connected through a rotating shaft and arranged on different sides of the first runner 31 in the axial direction of the first runner 31 . During the unfolding and closing process of the second part 22, the housings of the first motor 33 and the second motor 34 do not rotate.

Please refer to Figures 3 and 4. In some embodiments, the driving assembly 30 also includes a recovery belt 35. One end of the recovery belt 35 is fixed on the second runner 32, and the other end is fixed on the second part 22 away from the first part 21. On the end of the second part 22 , the second wheel 32 exerts force through the recovery belt 35 to the end of the second part 22 away from the first part 21 .

In this way, one end of the recovery belt 35 is fixed on the second wheel 32, and the other end is fixed on the end of the second part 22 away from the first part 21, so that the recovery belt 35 can move the second part 35 under the rotation of the second wheel 32. The rotational force of the second wheel 32 is converted into a horizontal pulling force on the second part 22, thereby driving the second part 22 to be recycled.

Specifically, the recovery belt 35 can have a belt-like structure, one end of the recovery belt 35 can be fixedly connected to the outer peripheral surface of the second runner 32 , and the other end of the recovery belt 35 can be away from the end of the second part 22 away from the first part 21 Fixed connection, when the second runner 32 rotates counterclockwise, one end of the recovery belt 35 connected to the second runner 32 has a first linear speed of rotation driven by the second runner 32, and the other end of the recovery belt 35 can have a The second rotational linear speed drives the first runner 31 to move clockwise, so that the second part 22 is recovered. Wherein, the first rotational linear speed may be three times the second rotational linear speed.

Please refer to Figures 3 and 4. In some embodiments, the driving assembly 30 also includes a pulley 111 fixed on the first shell 11, the recovery belt 35 is wound around the pulley 111, and both ends of the recovery belt 35 are located on the pulley 111. of the same side. In this way, the arrangement of the pulley 111 can change the direction of power at both ends of the recovery belt 35 .

Specifically, the pulley 111 can be fixed on the side wall of the first shell 11 facing the second shell 12 and located inside the second shell 12 . The pulley 111 can be a fixed pulley, the recovery belt 35 can be wound around the first shell 11 and the two ends of the recovery belt 35 that are stressed can be located on the same side of the pulley 111, that is, the recovery belt 35 is fixed on the second runner 32 One end is located on the same side as the other end fixed on the end of the second part 22 away from the first part 21 .

To sum up, in one example, when the electronic device 100 needs to unfold the second part 22 of the flexible display screen 20 , it can control the operation of the first motor 33 connected to the first wheel 31 to drive the first wheel 31 . The rotation in the first direction can be the counterclockwise rotation of the viewing angle shown in Figure 3. At this time, the second part 22 will gradually be exposed outside the second shell 12, and the end of the second part 22 away from the first part 11 can move toward The movement away from the first shell 11 drives the recovery belt 35 to rotate around the pulley 111 , so that the other end of the recovery belt 35 drives the second wheel 32 to rotate clockwise, as well as the linkage of the power structure 312 .

That is, the rotation of the first runner 31 can drive the planet wheel 3122 to rotate and cooperate with the sun wheel 3121 to rotate. During the rotation of the planet wheel 3122, it can drive the planet carrier 3123 to rotate and thereby drive the second runner 32 to rotate. It can be understood that the second motor 34 connected to the second runner 32 can remain idling during the process of the power structure 312 linking to drive the second runner 32 to rotate.

During the unfolding process of the second part 22 , the support belt 221 will gradually disengage from the first gear teeth 3111 on the first runner 31 and support the exposed part of the second part 22 , while continuing to support the second part 22 . Expand to help.

In another example, when the electronic device 100 needs to recycle the second part 22 of the flexible display screen 20 , the electronic device 100 can control the second motor 34 connected to the second wheel 32 to drive the second wheel 31 to move in the second direction. Rotate, that is, it can be a counterclockwise rotation as shown in Figure 3. At this time, the second part 22 will gradually be recovered into the second shell 12, and the end of the second part 22 away from the first part 11 can be closer to the first shell. It moves in the direction of 11 and drives the recovery belt 35 to rotate around the pulley 111, so that the other end of the recovery belt 35 drives the first runner 31 to rotate clockwise, as well as the linkage of the power structure.

That is, the rotation of the second runner 32 can drive the planet carrier 3123 to rotate and the planet wheel 3122 to rotate. During the rotation of the planet wheel 3122, it can drive the sun gear 3123 to rotate and the first runner 31 to rotate. It can be understood that the first motor 33 connected to the first runner 31 can remain idling during the process of the power structure 312 linking to drive the first runner 31 to rotate.

During the recycling process of the second part 22, the support belt 221 will gradually interact with the first gear teeth 3111 on the first runner 31. Engage and wind onto the first wheel 31 .

In the description of this specification, reference to the terms "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the description in conjunction with the terms The specific features, structures, materials or characteristics described in the above embodiments or examples are included in at least one embodiment or example of the present application. In this specification, schematic representations 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 any one or more embodiments or examples.

Although the embodiments of the present application have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principles and purposes of the present application. The scope of the application is defined by the claims and their equivalents.

Claims

An electronic device, characterized by including:

A shell assembly, including a first shell and a second shell that are slidably connected;

A flexible display screen includes a first part and a second part. The first part is fixedly connected to the first shell and exposed outside the shell assembly. The second shell can slide relative to the first shell so that the The second part can be hidden within the housing assembly or at least partially exposed outside the housing assembly;

Driving assembly, the driving assembly includes a first rotating wheel and a second rotating wheel, the first rotating wheel is rotatably arranged on the second housing, and the second part is arranged around the first rotating wheel. On the other hand, the second wheel can rotate relative to the first wheel and exert force on the end of the second part away from the first part.
The electronic device according to claim 1, wherein when the first wheel rotates in the first direction, the second part can be unfolded and exposed outside the housing assembly; The wheel can drive the second part to retract into the housing assembly when rotating along the first direction.
The electronic device according to claim 2, wherein the second rotating wheel is coaxially arranged with the first rotating wheel, and the rotation axis of the first rotating wheel is perpendicular to the relative position of the second housing. Describe the sliding direction of the first shell.
The electronic device according to claim 3, wherein the ratio of the maximum outer diameter rotational linear speed of the first runner to the maximum outer diameter rotational linear speed of the second runner is 1:3.
The electronic device according to claim 1, wherein the driving assembly includes a support belt fixed to the second part, the outer circumferential surface of the first wheel is provided with a plurality of first gear teeth, and a plurality of first gear teeth are provided on the outer circumferential surface of the first wheel. The first gear teeth are arranged at intervals along the circumference of the first runner, and the support belt wraps around the outer circumferential surface of the first runner and meshes with the first gear teeth.
The electronic device according to claim 5, wherein the lateral circumferential surface of the first rotating wheel has a protrusion extending along the axial direction of the first rotating wheel, and the first gear teeth are arranged on on the outer peripheral surface of the protrusion.
The electronic device according to claim 2, wherein the driving assembly includes a linkage mechanism connected between the first runner and the second runner, the linkage mechanism being configured such that when the When one of the first rotating wheel and the second rotating wheel rotates in the first direction, the other rotates in a second direction synchronously, and the second direction is opposite to the first direction.
The electronic device according to claim 7, wherein the linkage mechanism includes a sun gear, a planet gear and a planet carrier, an inner peripheral surface of the first runner is provided with an internal ring gear, and the planet gear is rotatable. The second rotating wheel is disposed on the planet carrier, the planet wheels mesh with the sun gear and the internal ring gear respectively, and the second rotating wheel is fixed on the planet carrier.
The electronic device according to claim 8, characterized in that the driving assembly further includes a first motor and a second motor, the first motor is used to drive the first rotating wheel, the sun wheel and the One of the planet carriers rotates, and the second motor is used to drive the first runner, the sun gear and the other one of the planet carriers to rotate, so that the first runner and/or the second The wheel turns.
The electronic device according to claim 9, wherein the first motor and the second motor are respectively disposed on opposite sides of the first wheel in the axial direction.
The electronic device according to claim 9, wherein the first motor is used to drive the first rotation The second motor is used to drive the second wheel to rotate; when the first motor rotates, the second motor is in an idling state; when the second motor rotates, the third motor rotates. One motor is idling.
The electronic device according to any one of claims 1 to 11, wherein the driving assembly further includes a recovery belt, one end of the recovery belt is fixed on the second wheel, and the other end is fixed on the second runner. On the end of the second part away from the first part, the second wheel applies force to the end of the second part away from the first part through the recovery belt.
The electronic device according to claim 12, wherein the driving assembly further includes a pulley fixed on the first shell, the recovery belt is wound around the pulley, and both ends of the recovery belt are Located on the same side of said pulley.
A driving mechanism is characterized by including:

A shell assembly, including a first shell and a second shell that are slidably connected;

A driving assembly, the driving assembly includes a first rotating wheel and a second rotating wheel, the first rotating wheel is rotatably arranged on the second housing, and a flexible display screen is arranged around the first rotating wheel, The second rotating wheel can rotate relative to the first rotating wheel and exert force on the flexible display screen at an end of the flexible display screen away from the first rotating wheel, thereby enabling the flexible display screen to Hidden within the housing component or at least partially exposed outside the housing component.
The driving mechanism according to claim 14, wherein the second wheel is coaxially arranged with the first wheel, and the rotation axis of the first wheel is perpendicular to the relative position of the second housing. The sliding direction of the first shell; the ratio of the maximum outer diameter rotational linear speed of the first runner to the maximum outer diameter rotational linear speed of the second runner is 1:3.
The driving mechanism according to claim 14, wherein the driving assembly includes a support belt fixed to the second part, the outer circumferential surface of the first runner is provided with a plurality of first gear teeth, and a plurality of first gear teeth are provided on the outer circumferential surface of the first runner. The first gear teeth are arranged at intervals along the circumferential direction of the first runner, and the support belt wraps around the outer circumferential surface of the first runner and engages with the first gear teeth; The lateral circumferential surface of the wheel has a protrusion extending along the axial direction of the first wheel, and the first gear teeth are provided on the outer circumferential surface of the protrusion.
The drive mechanism of claim 14, wherein the drive assembly includes a linkage mechanism connected between the first runner and the second runner, and the linkage mechanism is configured such that when the When one of the first rotating wheel and the second rotating wheel rotates in the first direction, the other rotates in a second direction synchronously, and the second direction is opposite to the first direction; The linkage mechanism includes a sun gear, a planet gear and a planet carrier. The inner circumferential surface of the first runner is provided with an internal ring gear. The planet wheels are rotatably arranged on the planet carrier. The planet wheels are respectively connected to the planet carrier. The sun gear meshes with the internal ring gear, and the second rotating wheel is fixed on the planet carrier.
The driving mechanism according to claim 17, characterized in that the driving assembly further includes a first motor and a second motor, the first motor is used to drive the first rotating wheel, the sun wheel and the One of the planet carriers rotates, and the second motor is used to drive the first runner, the sun gear and the other one of the planet carriers to rotate, so that the first runner and/or the second The runner rotates; the first motor is used to drive the first runner to rotate, and the second motor is used to drive the second runner to rotate; wherein when the first motor rotates, the second motor The motor is in an idling state, and when the second motor rotates, the first motor is in an idling state.
The driving mechanism according to any one of claims 14 to 18, wherein the driving assembly further includes a recovery belt and a pulley, one end of the recovery belt is fixed on the second runner, and the other end is fixed on the second runner. The second part is far The second wheel exerts force on the end of the second part away from the first part through the recovery belt; the pulley is fixed on the first shell. , the recovery belt is wound around the pulley, and both ends of the recovery belt are located on the same side of the pulley.
An electronic device, characterized in that the electronic device includes a flexible display screen and the driving mechanism according to any one of claims 14 to 19.