electronic devices

Abstract

This application discloses an electronic device, relating to the field of electronic device technology. The electronic device includes a support, a drive mechanism, a winding mechanism, a telescopic mechanism, and a flexible display screen. The support includes a first frame and a second frame slidably connected to the first frame. The winding mechanism is rotatably connected to the second frame and includes a transmission assembly and a roller assembly that are drive-connected. The drive mechanism and the roller assembly are drive-connected via the transmission assembly. The telescopic mechanism connects the first frame and the second frame and is drive-connected to the drive mechanism via the transmission assembly. A first end of the flexible display screen is connected to the first frame, and a second end of the flexible display screen wraps around the outside of the roller assembly. The drive mechanism drives the roller assembly to rotate via the transmission assembly, causing the roller assembly to wind up or unwind the flexible display screen. Simultaneously, the drive mechanism drives the telescopic mechanism to extend or retract via the transmission assembly, causing the second frame to slide relative to the first frame.

Description

Technical Field

[0001] This application belongs to the field of electronic equipment technology, and specifically relates to an electronic device. Background Technology

[0002] With the development of flexible display technology, electronic devices equipped with flexible displays can switch the display area of ​​the flexible display according to user needs. In related technologies, flexible displays can be rolled up and unrolled using a sliding method, where a portion of the flexible display is wound onto a spool, and the display area is changed by stretching and rolling. However, when the flexible display is stretched and unrolled outwards, localized bulges and accumulations can easily occur in the area where the flexible display is rolled up on the spool, affecting its flatness and reducing its lifespan. Summary of the Invention

[0003] This application aims to provide an electronic device that solves the technical problem that flexible displays are prone to local bulging and piling when stretched outward.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows:

[0005] In a first aspect, embodiments of this application provide an electronic device, comprising:

[0006] The bracket includes a first frame and a second frame slidably connected to the first frame;

[0007] Drive mechanism;

[0008] A winding mechanism is rotatably connected to the second frame. The winding mechanism includes a transmission component and a winding assembly that are connected by transmission. The drive mechanism and the winding assembly are connected by transmission through the transmission component.

[0009] The telescopic mechanism connects the first frame and the second frame, and is connected to the drive mechanism via a transmission component.

[0010] A flexible display screen, the first end of which is connected to the first frame, and the second end of which wraps around the outside of the roll assembly;

[0011] The drive mechanism drives the roll assembly to rotate via the drive transmission component, so that the roll assembly can roll up or unroll the flexible display screen; at the same time, the drive mechanism drives the telescopic mechanism to extend or retract via the drive transmission component, so that the second frame slides relative to the first frame.

[0012] In the electronic device provided in this application, a drive mechanism and a scroll assembly are connected by a transmission assembly, and a telescopic mechanism connects the first frame and the second frame. The telescopic mechanism is connected to the drive mechanism via the transmission assembly, so that under the drive of the drive mechanism, the transmission assembly can drive the scroll assembly to rotate to roll up or unfold the flexible display screen. At the same time, under the drive of the drive mechanism, the transmission assembly can drive the telescopic mechanism to extend or retract, so as to drive the second frame and the scrolling mechanism to slide relative to the first frame. The process of the scroll assembly rolling up or unfolding the flexible display screen and the process of the telescopic mechanism driving the second frame and the scrolling mechanism to slide relative to the first frame are linked, which to a certain extent avoids or reduces the accumulation of the flexible display screen on the periphery of the scroll assembly as it unfolds with the rotation of the scroll assembly, avoids or reduces the deformation of the flexible display screen such as local bulging and accumulation, and the second frame can support the flexible display screen to unfold flatly as it unfolds with the rotation of the scroll assembly, thereby improving the service life of the flexible display screen.

[0013] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0015] Figure 1 This is a three-dimensional structural diagram of an embodiment of the electronic device according to this application in the wound state;

[0016] Figure 2 This is a three-dimensional structural diagram of an embodiment of the electronic device according to this application in its unfolded state;

[0017] Figure 3 This is a partial perspective structural schematic diagram of an embodiment of the electronic device according to this application;

[0018] Figure 4 This is a cross-sectional structural diagram of an embodiment of the electronic device according to this application in its unfolded state;

[0019] Figure 5 This is a cross-sectional structural diagram of an embodiment of the electronic device according to this application in the wound state;

[0020] Figure 6 This is a partial perspective structural schematic diagram of an embodiment of the electronic device according to this application;

[0021] Figure 7 yes Figure 6 An enlarged structural diagram of part A shown;

[0022] Figure 8This is a partial perspective structural schematic diagram of an embodiment of the electronic device according to this application;

[0023] Figure 9 This is a three-dimensional structural schematic diagram of an embodiment of the scroll according to this application;

[0024] Figure 10 This is a partial perspective structural schematic diagram of an embodiment of the electronic device according to this application;

[0025] Figure 11 This is a partial cross-sectional structural schematic diagram of an embodiment of the electronic device according to this application;

[0026] Figure 12 This is a partial three-dimensional structural schematic diagram of an embodiment of the electronic device according to this application in the wound state;

[0027] Figure 13 This is a partial three-dimensional structural schematic diagram of an embodiment of the electronic device according to this application in the wound state;

[0028] Figure 14 This is a cross-sectional structural diagram of an embodiment of the electronic device according to this application in the wound state;

[0029] Figure 15 This is a partial three-dimensional structural diagram of an embodiment of the electronic device according to this application in its unfolded state;

[0030] Figure 16 This is a partial three-dimensional structural diagram of an embodiment of the electronic device according to this application in its unfolded state;

[0031] Figure 17 This is a cross-sectional structural diagram of an embodiment of the electronic device according to this application in its unfolded state;

[0032] Figure 18 This is a partial structural schematic diagram of an embodiment of the electronic device according to this application.

[0033] Explanation of reference numerals in the attached figures

[0034] 1. Bracket; 11. First frame; 12. Second frame; 121. First connecting rod; 123. Second connecting rod; 124. Mounting base;

[0035] 2. Drive mechanism; 21. Drive component; 22. Second gear;

[0036] 31. Transmission assembly; 311. Drive shaft; 312. First gear; 313. Transmission gear; 314. First bevel gear; 315. Second bevel gear; 316. Third gear; 32. Reel assembly; 321. Reel; 3211. Internal gear ring; 3212. First section; 3213. Second section; 3214. First cavity; 3215. Second cavity; 3216. Fixed shaft; 3217. Baffle; 322. Driven shaft; 323. Transmission belt; 3231. Flexible belt body; 3232. External toothed section; 3233. Internal toothed section;

[0037] 4. Telescopic mechanism; 41. Screw; 42. Fixed base; 43. Spring;

[0038] 5. Flexible display screen; 51. Main display area; 52. Extended display area; 53. Screen body; 54. Rack and pinion; 6. Cover plate;

[0039] X, second direction; Y, second direction. Detailed Implementation

[0040] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0041] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0042] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0043] In the description of this application, it should be noted that, unless otherwise explicitly specified and oriented, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] The following is combined Figures 1 to 18 This application describes an electronic device according to an embodiment of the present application.

[0045] like Figures 1 to 3 As shown in the figure, this application discloses an electronic device 100, which includes a support 1, a drive mechanism 2, a winding mechanism, a telescopic mechanism 4, and a flexible display screen 5. The support 1 includes a first frame 11 and a second frame 12 slidably connected to the first frame 11. The winding mechanism is rotatably connected to the second frame 12 and includes a transmission component 31 and a roller assembly 32 that are connected by transmission. The drive mechanism 2 and the roller assembly 32 are connected by transmission through the transmission component 31. The telescopic mechanism 4 connects the first frame 11 and the second frame 12 and is connected by transmission through the transmission component 31 to the drive mechanism 2. The first end of the flexible display screen 5 is connected to the first frame 11, and the second end of the flexible display screen 5 passes around the outside of the roller assembly 32. The drive mechanism 2 drives the roller assembly 32 to rotate by driving the transmission component 31, so that the roller assembly 32 winds up or unfolds the flexible display screen 5. At the same time, the drive mechanism 2 drives the telescopic mechanism 4 to extend or retract by driving the transmission component 31, so that the second frame 12 slides relative to the first frame 11.

[0046] Electronic device 100 can be a mobile phone, tablet computer, laptop computer, handheld computer, in-vehicle device, mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, ultra-mobile personal computer (UMPC), netbook, or personal digital assistant (PDA), etc. It can also be a personal computer (PC), television (TV), ATM, or self-service machine, etc. The embodiments of this application do not specify a particular orientation.

[0047] The bracket 1 can be used to support the flexible display screen 5 and house the functional components of the electronic device 100. These functional components can be batteries, processing units, sound generating units, camera units, drive mechanisms 2, curling mechanisms, etc. The first frame 11 and the second frame 12 can be slidably connected along the second direction Y. When the second frame 12 slides away from the first frame 11 along the second direction Y, the area of ​​the bracket 1 supporting the flexible display screen 5 increases; when the second frame 12 slides closer to the first frame 11 along the second direction Y, the area of ​​the bracket 1 supporting the flexible display screen 5 decreases.

[0048] The flexible display screen 5 is flexible, allowing at least a portion of it to bend into an arc shape to wrap around from one side of the roll assembly 32 to the other. The flexible display screen 5 includes a main display area 51 and an extended display area 52 connected to each other. A first frame 11 supports the main display area 51, and a second frame 12 supports the extended display area 52. At least a portion of the extended display area 52 is bent into an arc shape and wraps around the roll assembly 32 to a distance from the main display area 51. At least a portion of the roll assembly 32 supports the bent area of ​​the extended display area 52. Rotation of the roll assembly 32 can move the flexible display screen 5, thereby changing the size of the area in the extended display area 52 that is spaced apart from the main display area 51.

[0049] The scroll assembly 32 rotates to retract the extended display area 52, thereby reducing the display area of ​​the extended display area 52 and the main display area 51 on the same plane, and reducing the area of ​​the flexible display screen 5 that can display images; the scroll assembly 32 rotates to unfold the extended display area 52, thereby increasing the display area of ​​the extended display area 52 and the main display area 51 on the same plane, and increasing the area of ​​the flexible display screen 5 that can display images.

[0050] The drive mechanism 2 is connected to the transmission assembly 31, which is in turn connected to the roll assembly 32 and the telescopic mechanism 4. Driven by the drive mechanism 2, the transmission assembly 31 can rotate the roll assembly 32 to roll up or unroll the flexible display screen 5. Simultaneously, driven by the drive mechanism 2, the transmission assembly 31 can extend or retract the telescopic mechanism 4, causing the second frame 12 and the rolling mechanism to slide relative to the first frame 11. During the rotation of the roll assembly 32 to unroll the flexible display screen 5, the rolling mechanism can slide relative to the first frame 11 along with the second frame 12. This allows the second frame 12 to support the unrolled flexible display screen 5, preventing or reducing the accumulation of the flexible display screen 5 around the roll assembly 32 as it rotates, thus ensuring the second frame 12 supports the unrolled flexible display screen 5 smoothly.

[0051] For example, in the fully retracted state, the flexible display screen 5 has a display area corresponding to the main display area 51. A portion of the extended display area 52 is bent around the outside of the scroll assembly 32, while a portion is spaced apart from and obscured by the main display area 51; that is, the extended display area 52 is not used for display. In this state, the display area of ​​the flexible display screen 5 is small, equal to the area of ​​the main display area 51, making it easy to carry. Driven by the drive mechanism 2, the transmission assembly 31 drives the scroll assembly 32 to rotate. The scroll assembly 32 moves at least a portion of the extended display area 52 to the same plane as the main display area 51. The main display area 51 and the extended display area 52, located on the same plane, are used together to display images, increasing the display area of ​​the flexible display screen 5 and reducing the area of ​​the extended display area 52 obscured by the main display area 51. Driven by the drive mechanism 2, the transmission component 31 drives the roll extension mechanism 4 to extend, causing the second frame 12 to move away from the first frame 11. The second frame 12 supports the movement to the extended display area 52, which is on the same plane as the main display area 51, so as to ensure that the area in the flexible display screen 5 used to display images is flat.

[0052] For example, such as Figure 4 In its fully unfolded state, the flexible display screen 5 shows that at least a portion of the extended display area 52 moves to the same plane as the main display area 51. This extended display area 52 is displayed together with the main display area 51 to increase the display area. The display area of ​​the flexible display screen 5 is equal to the area of ​​the main display area 51 plus the display area of ​​the extended display area 52 that is on the same plane as the main display area 51. In this state, the flexible display screen 5 has a larger display area and can display more content. Driven by the drive mechanism 2, the transmission component 31 drives the scroll assembly 32 to rotate. The scroll assembly 32 moves at least a portion of the extended display area 52 to a position spaced apart from the main display area 51, reducing the display area of ​​the flexible display screen 5 and increasing the area of ​​the extended display area 52 that is obscured by the main display area 51. Driven by the drive mechanism 2, the transmission component 31 drives the telescopic mechanism 4 to shorten, causing the second frame 12 to move closer to the first frame 11.

[0053] The flexible display screen 5 can have multiple winding directions, allowing both sides of the flexible display screen 5 to extend and retract. Optionally, the first and second sides of the flexible display screen 5 are each provided with a drive mechanism 2, a winding mechanism, and a telescopic mechanism 4. The flexible display screen 5 can roll up or unroll the first side through one set of drive mechanisms 2, winding mechanisms, and telescopic mechanisms 4, and can also roll up or unroll the second side through another set of drive mechanisms 2, winding mechanisms, and telescopic mechanisms 4.

[0054] In the embodiments provided in this application, by setting the drive mechanism 2 and the roll assembly 32 to be connected by the transmission assembly 31, and the telescopic mechanism 4 to connect the first frame 11 and the second frame 12, the telescopic mechanism 4 is connected to the drive mechanism 2 through the transmission assembly 31, so that under the drive of the drive mechanism 2, the transmission assembly 31 can drive the roll assembly 32 to rotate, so as to roll up or unfold the flexible display screen 5; at the same time, under the drive of the drive mechanism 2, the transmission assembly 31 can drive the telescopic mechanism 4 to extend and retract, so as to drive the second frame 12 and the rolling mechanism to slide relative to the first frame 11. The process of the roll assembly 32 rolling up or unfolding the flexible display screen 5 and the process of the telescopic mechanism 4 driving the second frame 12 and the rolling mechanism to slide relative to the first frame 11 are linked, which to a certain extent avoids or reduces the accumulation of the flexible display screen 5 on the periphery of the roll assembly 32 as it is unfolded by rotating, and avoids or reduces the deformation such as local bulging and accumulation of the flexible display screen 5. The second frame 12 can support the flexible display screen 5 to unfold flatly as it is unfolded by rotating the roll assembly 32, thereby improving the service life of the flexible display screen 5.

[0055] Please refer to the following: Figure 6 In some embodiments, the transmission assembly 31 includes a transmission shaft 311 that is tractively connected to the drive mechanism 2. The transmission shaft 311 extends along a first direction X and is sleeved inside the reel assembly 32. The end of the transmission shaft 311 along the first direction X is tractively connected to the telescopic mechanism 4 so that the drive mechanism 2 drives the transmission shaft 311 to rotate, thereby driving the telescopic mechanism 4 to extend and retract along a second direction Y. The first direction X and the second direction Y are intersecting.

[0056] The drive mechanism 2 can be directly connected to the drive shaft 311 to drive the drive shaft 311 to rotate. Alternatively, the drive mechanism 2 can be indirectly connected to the drive shaft 311 via gears, shafts, or other transmission components to drive the drive shaft 311 to rotate. The drive shaft 311 is sleeved within the scroll assembly 32. Rotation of the drive shaft 311 can drive at least a portion of the scroll assembly 32 to rotate, thereby moving the flexible display screen 5 through the rotating scroll assembly 32. The end of the drive shaft 311 can be directly connected to the telescopic mechanism 4 to drive the telescopic mechanism 4 to extend or retract. Alternatively, the end of the drive shaft 311 can be indirectly connected to the telescopic mechanism 4 via gears, shafts, or other transmission components to drive the telescopic mechanism 4 to extend or retract. For example, the drive mechanism 2 can be a rotary motor connected to one end of the drive shaft 311 to drive the drive shaft 311 to rotate. The telescopic mechanism 4 includes a rack, with the other end of the drive shaft 311 meshing with the rack. The rack converts the rotation of the drive shaft 311 into telescopic movement along the second direction Y, thereby driving the second frame 12 to move relative to the first frame 11 along the second direction Y. By setting the transmission shaft 311, the kinetic energy of the drive mechanism 2 can be transmitted to the reel assembly 32 through the transmission shaft 311 to drive the reel assembly 32 to rotate, and then transmitted to the telescopic mechanism 4 through the transmission shaft 311 to drive the telescopic mechanism 4 to extend and retract.

[0057] Optionally, the first direction X and the second direction Y are arranged perpendicularly. When the flexible display screen 5 is wound around the roll assembly 32 along one side of the second direction Y, the flexible display screen 5 is connected to the first frame 11 along the other side of the second direction Y, and the flexible display screen 5 is supported on the second frame 12 along both sides of the first direction X. The telescopic mechanism 4 can correspond to at least one of the two sides of the flexible display screen 5 along the first direction X.

[0058] In some embodiments, the transmission assembly 31 includes a transmission shaft 311 that is pulverizedly connected to the drive mechanism 2, and the reel assembly 32 includes a reel 321 that is sleeved on the outside of the transmission shaft 311 and pulverizedly connected to the transmission shaft 311. The second end of the flexible display screen 5 passes around the outside of the reel 321. The drive mechanism drives the reel 321 to rotate through the transmission assembly 31 so that the reel assembly 32 can reel in or unravel the flexible display screen 5.

[0059] The backlight surface of the flexible display screen 5 can directly contact the roller 321. There is a certain friction between the outer surface of the roller 321 and the backlight surface of the flexible display screen 5. Rotating the roller 321 can move the flexible display screen 5. The outer surface of the roller 321 can also be provided with a first comb structure, and the backlight surface of the flexible display screen 5 can be provided with a second comb structure. The first comb structure and the second comb structure mesh with each other, and rotating the roller 321 can move the flexible display screen 5.

[0060] The spool 321 can be directly sleeved on the outside of the drive shaft 311, and the rotation of the drive shaft 311 directly drives the spool 321 to rotate. In these embodiments, the spool 321 and the drive shaft 311 can be an integrally formed structure. In other embodiments, a gear set or other transmission component can also be provided between the drive shaft 311 and the spool 321 to realize the transmission between the drive shaft 311 and the spool 321.

[0061] Please see Figure 7 and Figure 8 In some embodiments, the transmission assembly 31 further includes a first gear 312 and a transmission gear 313. The first gear 312 is sleeved on the outside of the transmission shaft 311, the roller 321 has an internal gear ring 3211, and the transmission gear 313 meshes between the first gear 312 and the internal gear ring 3211.

[0062] The first gear 312 and the drive shaft 311 can be integrally formed. Meshing teeth can be provided on the circumference of the drive shaft 311 to form the first gear 312. Meshing tooth structures are provided on the inner wall surface of the roller 321 to form an internal gear ring 3211.

[0063] When the drive shaft 311 rotates, it drives the first gear 312 to rotate. Since the drive gear 313 meshes between the first gear 312 and the internal gear ring 3211, the drive gear 313 rotates on its own axis and revolves around the first gear 312 on the same time. The drive gear 313 can drive the internal gear ring 3211 to rotate, thereby driving the roller 321 to rotate.

[0064] By setting the transmission gear 313 to mesh between the first gear 312 and the internal gear ring 3211, the transmission ratio between the transmission shaft 311 and the reel 321 can be adjusted by adjusting the number of teeth of the transmission gear 313, the first gear 312 and the internal gear ring 3211, so that the reel 321 can achieve rotational feedback response of different precision according to the output of the drive mechanism 2.

[0065] Please refer to the following: Figure 9 In some embodiments, the spool 321 includes a first portion 3212 having a first cavity 3214 and a second portion 3213 having a second cavity 3215. The first cavity 3214 and the second cavity 3215 are connected. A drive shaft 311 passes through the first cavity 3214 and the second cavity 3215. An internal gear ring 3211 is provided on the wall of the second portion 3213 facing the second cavity 3215. The drive gear 313 is housed in the second cavity 3215.

[0066] The hollow spool 321 forms a first cavity 3214 and a second cavity 3215 that are connected. By placing the internal gear ring 3211 in the second portion 3213, the rotational friction between the drive shaft 311 and the spool 321 is reduced. The second cavity 3215 can also accommodate the first gear 312, the drive gear 313, and the internal gear ring 3211 to prevent impurities from entering between each pair of the first gear 312, the drive gear 313, and the internal gear ring 3211, thus affecting the kinetic energy transmission of the transmission assembly 31.

[0067] Optionally, the inner wall of the first portion 3212 facing the first cavity 3214 can be a smooth wall surface, and the surface of the drive shaft 311 is spaced apart from the smooth wall surface to further reduce the rotational friction between the drive shaft 311 and the reel 321.

[0068] In some embodiments, the reel 321 further includes a fixed shaft 3216 connected to the first portion 3212, the fixed shaft 3216 is housed in the second cavity 3215, the fixed shaft 3216 is disposed between the first gear 312 and the internal gear ring 3211, and the transmission gear 313 is sleeved on the outside of the fixed shaft 3216.

[0069] The first cavity 3214 and the second cavity 3215 can be coaxially arranged cylindrical shapes. The diameter of the first cavity 3214 is smaller than the diameter of the second cavity 3215, making the second cavity 3215 more suitable for accommodating the first gear 312, the transmission gear 313, and the internal gear ring 3211 compared to the first cavity 3214. The fixed shaft 3216 can protrude from the end face of the first portion 3212 near the second portion 3213 along the first direction X. The transmission gear 313 is sleeved on the outside of the fixed shaft 3216, thereby limiting the rotation of the transmission gear 313 around the fixed shaft 3216 by the fixed shaft 3216, which helps to improve the stability of the relative movement between the first gear 312, the transmission gear 313, and the internal gear ring 3211.

[0070] When the spool 321 extends along the first direction X, the thickness of the internal gear ring 3211 along the first direction X can be set to be greater than the thickness of the transmission gear 313 along the first direction X, so as to improve the meshing stability of the internal gear ring 3211 and the transmission gear 313. The thickness of the first gear 312 along the first direction X can also be set to be greater than the thickness of the transmission gear 313 along the first direction X, so as to improve the meshing stability of the first gear 312 and the transmission gear 313.

[0071] In one embodiment, the rotational speed of the drive shaft 311 is different from that of the reel 321.

[0072] By adjusting the number of teeth in the transmission gear 313, the first gear 312, and the internal gear ring 3211, the transmission ratio between the transmission shaft 311 and the winding shaft 321 can be adjusted, so that the rotational speed of the transmission shaft 311 is different from that of the winding shaft 321. Optionally, the rotational speed of the transmission shaft 311 is greater than that of the winding shaft 321 to increase the torque of the winding shaft 321.

[0073] In some embodiments, the number of transmission gears 313 is multiple, and the multiple transmission gears 313 are evenly spaced around the first gear 312.

[0074] When there are multiple transmission gears 313, there are also multiple fixed shafts 3216, with each fixed shaft 3216 connected to a corresponding transmission gear 313. The more transmission gears 313 there are, the greater the load that the transmission assembly 31 can bear. Multiple transmission gears 313 can share the load, thereby reducing the force between each transmission gear 313 and the fixed rod, and reducing the size of the transmission gears 313.

[0075] To balance the radial force at each meshing point of the transmission gear 313 and the centrifugal force generated by the revolution of the transmission gear 313, multiple transmission gears 313 can be evenly spaced around the first gear 312, increasing the smoothness of the rotation and revolution of the transmission gears 313. Figure 8In the embodiment shown, there are three transmission gears 313, which are evenly arranged around the first gear 312.

[0076] Please refer to the following: Figure 10 and Figure 11 In some implementations, the winding mechanism also includes a driven shaft 322 and a drive belt 323. The driven shaft 322 and the winding shaft 321 are arranged at intervals relative to each other. The driven shaft 322 is rotatably connected to the second frame 12. The drive belt 323 is sleeved on the outside of the winding shaft 321 and the driven shaft 322. The second end of the flexible display screen 5 passes around the winding shaft 321 and is connected to the drive belt 323.

[0077] The driven shaft 322 can extend along the first direction X. Mounting holes can be provided on the second frame 12, and the opposite ends of the driven shaft 322 along the first direction X can be inserted into the mounting holes for rotatable connection with the second frame 12. The driven shaft 322 is driven by the reel 321, meaning that except for the drive belt 323, no driving component is needed to directly output power to the driven shaft 322. The rotating reel 321 drives the drive belt 323 to rotate around the reel 321 and the driven shaft 322, and the drive belt 323 drives the driven shaft 322 to rotate. Compared to the reel 321, the drive belt 323 has a larger surface area, and by moving the flexible display screen 5 via the drive belt 323, the stability of the flexible display screen 5's movement can be improved.

[0078] The transmission belt 323 can be a ring-shaped belt with a comb-like structure on both sides. (See also...) Figure 11 In some embodiments, the transmission belt 323 includes a flexible belt body 3231, an outer toothed portion 3232, and an inner toothed portion 3233. The outer toothed portion 3232 and the inner toothed portion 3233 are opposite sides of the flexible belt body 3231. The inner toothed portion 3233 meshes with the roller 321 and the driven shaft 322, respectively. The flexible display screen 5 includes a screen 53 and a rack 54 disposed on the screen body. The rack 54 meshes with the outer toothed portion 3232.

[0079] The rack 54 is connected to the backlight surface of the screen 53, and the screen 53 is wound around the scroll assembly 32 to connect with the first frame 1. The scroll 321 engages with the inner tooth 3233, allowing the scroll 321 to drive the transmission belt 323 to move along a circular path. The transmission belt 323 engages with the rack 54 through the outer tooth 3232, allowing the transmission belt 323 to drive the rack 54 to move, and then the rack 54 to drive the screen 53 to move. By setting the engaging rack 54 and the outer tooth 3232, the stability of the transmission belt 323 driving the flexible display screen 5 is improved.

[0080] The outer surface of the spool 321 is provided with a comb-like structure that meshes with the internal teeth 3233. The spool 321 meshes with the drive belt 323, so that the linear velocity of the spool 321 is the same as the linear velocity of the drive belt 323. The drive belt 323 meshes with the rack 54, so that the linear velocity of the drive belt 323 is the same as the linear velocity of the rack 54.

[0081] Please see Figure 5 , Figure 6 and Figure 7 In some embodiments, there are multiple spools 321, which are arranged sequentially at intervals along the extension direction of the drive shaft 311, and the drive belt 323 is arranged around the multiple spools 321.

[0082] The extension direction of the drive shaft 311 can be the aforementioned first direction X. Multiple spools 321 can drive a drive belt 323 to move together, thereby improving the stability of the force applied between the drive belt 323 and the multiple spools 321.

[0083] The spaced-apart spools 321 can be used to place components of the electronic device 100. In some embodiments, the drive mechanism 2 includes a drive member 21 and a second gear 22, and the transmission assembly 31 includes a third gear 316. The second gear 22 is connected to the drive member 21, and the third gear 316 is sleeved on the outside of the transmission shaft 311 and meshes with the second gear 22. The third gear 316 is disposed between two adjacent spools 321.

[0084] The driving component 21 drives the second gear 22 to rotate, the second gear 22 drives the third gear 316 to rotate, and the third gear 316 drives the transmission shaft 311 to rotate. The third gear 316 is positioned between two adjacent rollers 321, so that the driving component 21 and the second gear 22 can be positioned opposite the transmission shaft 311 along the second direction Y, thus eliminating the need to position the driving mechanism 2 at the end of the transmission shaft 311, thereby reserving space around the end of the transmission shaft 311 for the telescopic mechanism 4.

[0085] Optionally, the drive mechanism 2 is disposed within the transmission belt 323 to improve the overall size of the drive mechanism 2 and the winding mechanism after assembly.

[0086] In some embodiments, the reel 321 further includes a baffle 3217 disposed between the third gear 316 and the reel 321. The baffle 3217 covers the second cavity 3215 to reduce or prevent external impurities from entering the second cavity 3215. Lubricant may also be disposed in the second cavity 3215, and the baffle 3217 can reduce or prevent the lubricant from flowing out of the second cavity 3215.

[0087] Please see Figures 12 to 17In some embodiments, the transmission assembly 31 further includes a first bevel gear 314 and a second bevel gear 315. The first bevel gear 314 is connected to one end of the transmission shaft 311, the second bevel gear 315 meshes with the first bevel gear 314, and the second bevel gear 315 is connected to the telescopic mechanism 4 in a transmission manner. The second bevel gear 315 rotates to drive the telescopic mechanism 4 to extend and retract along the second direction Y.

[0088] The first bevel gear 314 can be sleeved on the end of the drive shaft 311, and the second bevel gear 315 can be connected to the end of the telescopic mechanism 4. The length of the drive shaft 311 along the first direction X can be greater than the length of the reel assembly 32 along the first direction X, thereby reserving space for the first bevel gear 314 and the second bevel gear 315.

[0089] The second bevel gear 315 meshes with the first bevel gear 314, thereby enabling power transmission between the drive shaft 311 extending along the first direction X and the telescopic mechanism 4 extending and retracting along the second direction Y.

[0090] In some embodiments, the telescopic mechanism 4 includes a screw 41 and a fixed seat 42. The screw 41 is rotatably connected to the second frame 12, the screw 41 is connected to the second bevel gear 315 and threadedly connected to the fixed seat 42, and the fixed seat 42 is connected to the first frame 11.

[0091] The second bevel gear 315 can be sleeved on the end of the screw 41. The screw 41 can have external threads, and the fixing seat 42 can have internal threads. The screw 41 is sleeved in the fixing seat 42 to realize the threaded connection between the screw 41 and the fixing seat 42.

[0092] The rotating second bevel gear 315 drives the screw 41 to rotate, and the rotating screw 41 pushes the fixed seat 42 to translate along the second direction Y, thereby realizing the sliding of the second frame 12 relative to the first frame 11.

[0093] When the rotational speed of the drive shaft 311 is different from that of the reel 321, the rotational speed of the drive shaft 311 is the same as that of the first bevel gear 314, making the rotational speed of the first bevel gear 314 different from that of the reel 321. By setting the number of teeth of the first bevel gear 314 and the second bevel gear 315, the rotational speed of the second bevel gear 315 can also be kept consistent with that of the first bevel gear 314. The rotational speeds of the drive shaft 311, the first bevel gear 314, the second bevel gear 315, and the screw 41 can all be kept consistent, and all different from the rotational speed of the reel 321.

[0094] In some embodiments, the telescopic mechanism 4 further includes a spring 43 sleeved on the outside of the fixed seat 42, the spring 43 abutting between the fixed seat 42 and the first frame 11, so that the fixed seat 42 remains fixed to the first frame 11.

[0095] In some embodiments, the second frame 12 includes a first connecting rod 121 spaced apart along a second direction Y, a second connecting rod 123 spaced apart along a second direction Y, a mounting base 124 connecting the first connecting rod 121 and the second connecting rod 123, and a cover plate 6 covering the outside of the reel 321. The opposite ends of the drive shaft 311 and the opposite ends of the driven shaft 322 are rotatably connected to the first connecting rod 121, and the drive shaft 311, the first connecting rod 121, the driven shaft 322, and the second connecting rod 123 enclose each other.

[0096] The first connecting rod 121 is positioned between the second connecting rods 123, which are positioned opposite each other. One first connecting rod 121 and one second connecting rod 123 form a group on one side of the scroll assembly 32, while the other first connecting rod 121 and the other second connecting rod 123 form a group on the other side of the scroll assembly 32. The first bevel gear 314 and the second bevel gear 315, as well as the telescopic mechanism 4, can each be in pairs. One set of the first bevel gear 314 and the second bevel gear 315, along with the telescopic mechanism 4, is positioned between one set of the first connecting rods 121 and the second connecting rod 123, while another set of the first bevel gear 314 and the second bevel gear 315, along with the telescopic mechanism 4, is positioned between another set of the first connecting rods 121 and the second connecting rod 123. This allows the two telescopic mechanisms 4 to push the second frame 12 from both sides of the second frame 12, respectively.

[0097] Please refer to the following: Figure 18 The mounting base 124 connects a set of first connecting rods 121 and second connecting rods 123. A screw 41 passes through the mounting base 124 and connects to a second bevel gear 315. The second connecting rod 123 has a locking hole, and the opposite ends of the cover plate 6 are inserted into the locking hole to engage and fix it to the second connecting rod 123. The cover plate 6 at least covers the area of ​​the flexible display screen 5 wound around the roll assembly 32, as well as the drive shaft 311, the first bevel gear 314, and the second bevel gear 315, thus reducing the entry of impurities and minimizing their impact on the movement of the roll assembly 32, drive shaft 311, first bevel gear 314, and second bevel gear 315. A portion of the flexible display screen 5 is located between the cover plate 6 and the roll assembly 32, allowing the cover plate 6 to also serve a guiding function, reducing or preventing the flexible display screen 5 from detaching from the roll assembly 32.

[0098] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An electronic device, comprising: The electronic device comprises: a support comprising a first frame and a second frame slidingly connected to the first frame; a driving mechanism; a winding mechanism rotationally connected to the second frame, the winding mechanism comprising a transmission assembly and a winding shaft assembly in transmission connection, the driving mechanism and the winding shaft assembly being in transmission connection through the transmission assembly; a telescopic mechanism connecting the first frame and the second frame, the telescopic mechanism being in transmission connection with the driving mechanism through the transmission assembly; a flexible display screen, a first end of the flexible display screen being connected to the first frame, a second end of the flexible display screen bypassing an outer side of the winding shaft assembly; wherein the driving mechanism drives the transmission assembly to drive the winding shaft assembly to rotate, so that the winding shaft assembly winds or unwinds the flexible display screen; at the same time, the driving mechanism drives the transmission assembly to drive the telescopic mechanism to extend or retract, so that the second frame slides relative to the first frame; the winding shaft assembly comprises a winding shaft, the winding shaft comprising a first part having a first cavity and a second part having a second cavity, the first cavity and the second cavity being in communication, an inner ring gear being provided on a wall surface of the second part facing the second cavity; the transmission assembly comprises a transmission shaft, a first gear and a transmission gear, the transmission shaft being in transmission connection with the driving mechanism, the transmission shaft penetrating the first cavity and the second cavity, the first gear being sleeved on an outer side of the transmission shaft, the transmission gear being accommodated in the second cavity, the transmission gear being engaged between the first gear and the inner ring gear; the second end of the flexible display screen bypassing an outer side of the winding shaft.

2. The electronic device of claim 1, wherein, The transmission shaft extends along a first direction, the transmission shaft being sleeved in the winding shaft assembly, an end of the transmission shaft in the first direction being in transmission connection with the telescopic mechanism, so that the driving mechanism drives the transmission shaft to rotate to drive the telescopic mechanism to extend or retract along a second direction, the first direction and the second direction being arranged in intersection.

3. The electronic device of claim 1, wherein, The winding shaft is sleeved on the transmission shaft and in transmission connection with the transmission shaft, the driving mechanism driving the winding shaft to rotate through the transmission assembly, so that the winding shaft assembly winds or unwinds the flexible display screen.

4. The electronic device of claim 1, wherein, The winding shaft further comprises a fixed shaft connected with the first part, the fixed shaft being accommodated in the second cavity, the fixed shaft being arranged between the first gear and the inner ring gear, the transmission gear being sleeved on an outer side of the fixed shaft.

5. The electronic device of claim 1, wherein, The number of the transmission gears is multiple, the multiple transmission gears being uniformly and spacedly arranged around the first gear.

6. The electronic device of claim 1, wherein, The rotational speed of the transmission shaft is different from the rotational speed of the winding shaft.

7. The electronic device of claim 3, wherein, The winding mechanism further comprises a driven shaft and a transmission belt, the driven shaft and the winding shaft being oppositely and spacedly arranged, the driven shaft being rotationally connected to the second frame, the transmission belt being sleeved on an outer side of the winding shaft and the driven shaft, the second end of the flexible display screen being connected with the transmission belt bypassing the winding shaft.

8. The electronic device of claim 7, wherein, The transmission belt comprises a flexible belt body, an outer tooth portion and an inner tooth portion, the outer tooth portion and the inner tooth portion are arranged on opposite sides of the flexible belt body, the inner tooth portions are respectively engaged with the winding shafts and the driven shaft, the flexible display screen comprises a screen body and a rack arranged on the screen body, and the rack is engaged with the outer tooth portion.

9. The electronic device of claim 7, wherein, The number of the winding shafts is multiple, and the multiple winding shafts are sequentially and spacedly arranged along the extension direction of the transmission shaft, and the transmission belt is arranged around the multiple winding shafts.

10. The electronic device of claim 9, wherein, The driving mechanism comprises a driving member and a second gear, the transmission assembly comprises a third gear, the second gear is connected with the driving member, the third gear is sleeved outside the transmission shaft and engaged with the second gear, and the third gear is arranged between two adjacent winding shafts.

11. The electronic device of claim 2, wherein, The transmission assembly further comprises a first bevel gear and a second bevel gear, the first bevel gear is connected with one end of the transmission shaft, the second bevel gear is engaged with the first bevel gear, the second bevel gear is drivingly connected with the telescopic mechanism, and the second bevel gear drives the telescopic mechanism to telescopically extend in the second direction.

12. The electronic device of claim 11, wherein, The telescopic mechanism comprises a screw rod and a fixed seat, the screw rod is rotationally connected with the second frame body, the screw rod is connected with the second bevel gear and is threadedly connected with the fixed seat, and the fixed seat is connected with the first frame body.

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