WO2024040984A1 - 转轴装置以及折叠屏设备 - Google Patents

转轴装置以及折叠屏设备 Download PDF

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Publication number
WO2024040984A1
WO2024040984A1 PCT/CN2023/087756 CN2023087756W WO2024040984A1 WO 2024040984 A1 WO2024040984 A1 WO 2024040984A1 CN 2023087756 W CN2023087756 W CN 2023087756W WO 2024040984 A1 WO2024040984 A1 WO 2024040984A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotating shaft
screen support
screen
lifting
swing arm
Prior art date
Application number
PCT/CN2023/087756
Other languages
English (en)
French (fr)
Other versions
WO2024040984A9 (zh
Inventor
苏帅
陈瑞豪
董绍洪
董长富
彭高峰
金开放
Original Assignee
荣耀终端有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 荣耀终端有限公司 filed Critical 荣耀终端有限公司
Publication of WO2024040984A1 publication Critical patent/WO2024040984A1/zh
Publication of WO2024040984A9 publication Critical patent/WO2024040984A9/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets

Definitions

  • the embodiments of the present application relate to the field of terminal technology, and in particular to a rotating shaft device and a folding screen device.
  • the display screen of the electronic device is used to present image information to the user. In some usage scenarios, users expect that the display screen of the electronic device can have a larger display area.
  • electronic devices have a single-screen display. A larger display area means that the size of the electronic device is larger, which makes the electronic device lose its portability.
  • the electronic device may adopt a foldable structure.
  • the two housings can rotate relative to each other around the rotating shaft device to unfold or fold. Cover the two housings with flexible displays.
  • the flexible display screen is in an unfolded state and has a larger display area.
  • the flexible display screen is in a folded state, and the electronic device has a smaller volume.
  • the support stability of the rotating shaft device for the flexible display screen deviates, which affects the flatness of the flexible display screen in the unfolded state.
  • Embodiments of the present application provide a rotating shaft device and folding screen equipment, which can improve the support stability of the flexible display screen by the rotating shaft device.
  • a first aspect of this application provides a rotating shaft device for use in folding screen equipment.
  • the rotating shaft device at least includes a back cover, a lifting drive assembly, a lifting plate, a screen support assembly and a screen support door panel.
  • the lifting drive assembly includes a transmission swing arm, a transmission shaft and a lifting drive part.
  • the transmission swing arm is connected with the transmission shaft.
  • the transmission shaft is rotatably connected to the back cover.
  • the lifting drive part is connected with the transmission shaft.
  • the lifting plate is set corresponding to the back cover.
  • the lifting driving part is connected with the lifting plate.
  • the transmission swing arm can be slidably connected to the screen support component.
  • a screen support door panel is provided on at least one side of the lifting plate.
  • the screen support door panel is rotatably connected to the screen support assembly, and the screen support door panel is slidably connected to the back cover.
  • the screen support assembly drives the transmission shaft to rotate relative to the back cover through the transmission swing arm to switch between the unfolded position and the folded position.
  • the transmission shaft drives the lifting drive part to move.
  • the lifting driving part drives the lifting plate to move up and down away from or close to the back cover to switch between the raised position and the lowered position.
  • the screen support assembly drives the screen support door panel to rotate relative to the screen support assembly and to slide relative to the back cover synchronously.
  • the rotating shaft device in the embodiment of the present application includes a back cover, a lifting drive assembly, a lifting plate, a screen support assembly, and a screen support door panel.
  • the screen support assembly, lift drive assembly, lift plate and screen support door panel can achieve linkage.
  • the lifting plate can be in the raised position, so that the lifting plate can provide effective support for the flexible display screen disposed above the rotating shaft device, which is beneficial to improving the performance of the flexible display screen in the unfolded state.
  • the flatness of the flexible display screen improves the experience of using the flexible display screen.
  • the number of lifting plates is more than two.
  • the lifting plates and the screen support door panels are arranged alternately. Therefore, there is no interference between the positions of each lifting plate and the screen support door panel, so that each lifting plate does not need to be provided with an avoidance space for avoiding the screen support door panel, which is beneficial to reducing the number of holes provided on each lifting plate.
  • lifting driving parts are respectively provided at both ends of the lifting plate.
  • the corresponding lifting drive parts provided at both ends of the lifting plate can simultaneously apply lifting driving force to the lifting plate, thereby making the overall force on the lifting plate more balanced and conducive to improving the stability of the lifting movement process. sex.
  • the lifting driving part includes a toggle part.
  • the dialing part is offset from the axis of the transmission shaft.
  • the lifting plate includes a chute.
  • the toggle part matches with the slide groove.
  • the transmission shaft drives the toggle part to rotate and slide relative to the chute to drive the lifting plate to move up and down.
  • the chute of the lifting plate can avoid the toggle part, so that there will be no positional interference between the lifting plate and the toggle part.
  • the transmission shaft includes a first rotating shaft. At least one end of the first rotating shaft is provided with a lifting driving part.
  • the transmission swing arm includes a first swing arm.
  • the first swing arm is connected with the first rotating shaft.
  • the screen support assembly includes a screen pressure plate and a first track. The first track is connected to the screen platen.
  • the first swing arm is slidably connected to the first track. When the screen support assembly switches between the unfolded position and the folded position, the first swing arm slides relative to the first track, and the first swing arm drives the first rotating shaft to rotate.
  • the transmission shaft further includes a second rotating shaft. At least one end of the second rotating shaft is provided with a lifting driving part.
  • the transmission swing arm includes a second swing arm.
  • the second swing arm is connected with the second rotating shaft.
  • the screen support assembly includes the adapter, screen platen, and second track.
  • the adapter is connected to the screen pressure plate.
  • the second track is provided on the adapter.
  • the second swing arm is slidably connected to the second track.
  • the screen support door panel is rotatably connected to the adapter.
  • the screen pressure plate includes an escape notch.
  • Screen support door panels include screen support blocks. The screen support block is set corresponding to the avoidance gap. When the screen support assembly switches between the unfolded position and the folded position, the screen support door panel rotates relative to the screen support assembly, and the screen support door panel slides relative to the back cover to drive the screen support block to move within the avoidance gap.
  • two screen pressure plates are connected to the back cover.
  • the two screen support door panels located on the same side of the lift plate are connected to the back cover.
  • the avoidance gaps of the two screen pressure plates are misaligned, and the screen support blocks of the two screen support door panels are misaligned.
  • a second rotating shaft and a second swing arm are respectively provided on opposite sides of the lifting plate.
  • the second swing arm includes a sleeve portion, the sleeve portion is sleeved on the second rotating shaft, and the sleeve portion includes a spiral hole.
  • the rotating shaft device also includes a transmission slider.
  • the transmission slider is arranged between the two second rotating shafts.
  • the transmission slider includes a guide part. The guide part and the spiral hole can be slidably matched.
  • the socket portion includes a receiving portion and an ejection cam facing the receiving portion.
  • the rotating shaft device also includes a damping component. At least part of the damping component is located in the receiving portion.
  • the damping component includes elastic parts and guide cams.
  • the elastic member and the guide cam are both sleeved on the second rotating shaft.
  • the guide cam is arranged between the elastic member and the ejection cam.
  • the ejection cam and the guide cam mesh with each other.
  • the two guide cams sleeved on the two second rotating shafts and located on the same side of the elastic member are connected to each other.
  • the rotating shaft device creates resistance to the rotation process of the second rotating shaft through the ejection cam, the guide cam and the elastic member, so that the second swing arm and the second rotating shaft can hover at a predetermined position, and is conducive to ensuring that the second swing arm and the second rotating shaft can hover at a predetermined position.
  • the rotation process of the two rotating shafts is smooth.
  • guide cams are provided on opposite sides of the elastic member along the axial direction of the second rotating shaft.
  • the two ejection cams can synchronously push the two guide cams to move along the axial direction of the second rotating shaft, so that the two guide cams compress or release the elastic member at the same time, thereby ensuring the stability and balance of power transmission between the socket part and the damping component. properties, which is conducive to further improving the stability of the rotation process of the second swing arm and the second rotating shaft.
  • the lifting plate is provided on a side of the transmission slider facing away from the back cover.
  • the transmission slide includes two side walls.
  • An escape groove facing the lifting plate is formed between the two side walls.
  • the lifting plate has an escape part, and the side wall is arranged corresponding to the escape part.
  • the transmission slider and the lifting plate are not easy to come into contact, reducing the possibility of collision and scratching between the two.
  • the rotating shaft device includes a guide protrusion and a guide recess.
  • One of the lifting plate and the back cover is provided with a guide protrusion, and the other is provided with a guide recess.
  • the guide protrusion and the guide recess are slidably connected.
  • the guide convex portion can slide relative to the guide concave portion, so that the guide convex portion and the guide concave portion slide and cooperate, which can provide guidance for the lifting plate during the lifting process, reduce the possibility of the lifting plate tilting, and help improve the lifting plate. Position stability during lifting.
  • the surface of the lifting plate facing away from the back cover has a groove.
  • the bottom wall of the groove is curved.
  • the lifting plate corresponds to the bending area of the flexible display, and the groove on the lifting plate can effectively avoid the flexible display and reduce the compression of the flexible display by the lifting plate, which may cause the flexible display to collapse. Possibility of damage occurring.
  • the screen support door panel includes a rotating connection part and an arc sliding part.
  • the rotary connection part is rotatably connected to the screen support component.
  • the back cover includes curved slides.
  • the arc-shaped sliding part and the arc-shaped slide track are slidably connected.
  • the screen support door panel further includes a plug hole.
  • the back cover also includes plug-in blocks.
  • the plug-in block is inserted into the plug-in hole.
  • a second aspect of this application provides a folding screen device, which includes a housing and a flexible display screen.
  • the housing includes a frame and the above-mentioned rotating shaft device.
  • the rotating shaft device at least includes a back cover, a lifting drive assembly, a lifting plate, a screen support assembly and a screen support door panel.
  • the lifting drive assembly includes a transmission swing arm, a transmission shaft and a lifting drive part.
  • the transmission swing arm is connected with the transmission shaft.
  • the transmission shaft is rotatably connected to the back cover.
  • the lifting drive part is connected with the transmission shaft.
  • the lifting plate is set corresponding to the back cover.
  • the lifting driving part is connected with the lifting plate.
  • the transmission swing arm can be slidably connected to the screen support component.
  • a screen support door panel is provided on at least one side of the lifting plate.
  • the screen support door panel can be rotated and connected to the screen
  • the screen support assembly is provided, and the screen support door panel can be slidably connected to the back cover.
  • the screen support assembly drives the transmission shaft to rotate relative to the back cover through the transmission swing arm to switch between the unfolded position and the folded position.
  • the transmission shaft drives the lifting drive part to move.
  • the lifting driving part drives the lifting plate to move up and down away from or close to the back cover to switch between the raised position and the lowered position.
  • the screen support assembly drives the screen support door panel to rotate relative to the screen support assembly and to slide relative to the back cover synchronously.
  • the frame is connected to the screen support component.
  • the flexible display screen is connected to the frame.
  • Figure 1 is a schematic structural diagram of a folding screen device in an unfolded state according to an embodiment of the present application
  • Figure 2 is a schematic structural diagram of a folding screen device in a semi-folded state according to an embodiment of the present application
  • Figure 3 is a schematic structural diagram of the folding state of the folding screen device provided by the embodiment of the present application.
  • Figure 4 is a schematic diagram of a partially exploded structure of a folding screen device provided by an embodiment of the present application.
  • Figure 5 is a schematic structural diagram of a rotating shaft device provided by an embodiment of the present application.
  • Figure 6 is a partially exploded structural diagram of a rotating shaft device provided by an embodiment of the present application.
  • Figure 7 is an enlarged schematic diagram of position H in Figure 6;
  • Figure 8 is a schematic structural diagram of a rotating shaft device provided by an embodiment of the present application.
  • Figure 9 is a schematic cross-sectional structural diagram along the P1-P1 direction in Figure 8.
  • Figure 10 is a partial cross-sectional structural schematic diagram of a rotating shaft device in a folded state according to an embodiment of the present application
  • Figure 11 is a schematic cross-sectional structural diagram along the P2-P2 direction in Figure 8.
  • Figure 12 is a partial cross-sectional structural schematic diagram of a rotating shaft device in a folded state according to an embodiment of the present application
  • Figure 13 is an enlarged schematic diagram of S in Figure 6;
  • Figure 14 is a schematic cross-sectional structural diagram along the P3-P3 direction in Figure 8.
  • Figure 15 is a partial cross-sectional structural schematic diagram of a rotating shaft device in a folded state according to an embodiment of the present application
  • Figure 16 is a schematic cross-sectional structural diagram along the P4-P4 direction in Figure 8.
  • Figure 17 is a schematic structural diagram of a transmission slider provided by an embodiment of the present application.
  • Figure 18 is a schematic structural diagram of a lifting plate provided by an embodiment of the present application.
  • Figure 19 is a schematic structural diagram of a lifting plate provided by an embodiment of the present application.
  • Figure 20 is a schematic cross-sectional structural diagram along the P5-P5 direction in Figure 8.
  • Figure 21 is a partial cross-sectional structural schematic diagram of a rotating shaft device in a folded state according to an embodiment of the present application
  • Figure 22 is an enlarged schematic diagram of M in Figure 5.
  • the electronic device in the embodiment of the present application may be called user equipment (UE) or terminal (terminal), etc.
  • the electronic device may be a tablet computer (portable android device, PAD), personal digital assistant (personal digital assistant, PDA), handheld devices with wireless communication functions, computing devices, vehicle-mounted devices, wearable devices, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, industrial control (industrial control) wireless terminals, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals in transportation safety, smart Mobile terminals or fixed terminals such as wireless terminals in smart cities and wireless terminals in smart homes.
  • UE user equipment
  • terminal terminal
  • the electronic device may be a tablet computer (portable android device, PAD), personal digital assistant (personal digital assistant, PDA), handheld devices with wireless communication functions, computing devices, vehicle-mounted devices, wearable devices, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, industrial control (industrial control) wireless terminals, wireless terminals in self-driving
  • the electronic device is a handheld device with a wireless communication function as an example for description.
  • the handheld device with wireless communication function may be a folding screen device, for example.
  • the foldable screen device may be a foldable mobile phone including a foldable flexible display screen.
  • a folding screen device includes a frame and a rotating shaft device. Frames are respectively provided on both sides of the rotating shaft device. The frame can rotate relative to the rotating shaft device, so that the frame can be switched between a folded state and an unfolded state.
  • the flexible display can be connected to the frame. When the frame switches between the folded state and the unfolded state, the flexible display screen can switch between the unfolded state and the folded state simultaneously. When the flexible display screen is in an unfolded state, the frame can provide support for the flexible display screen.
  • the support effect of the rotating shaft device on the flexible display screen is deviated, causing the flatness of the area of the flexible display screen corresponding to the rotating shaft device to be deviated, affecting the user experience of the flexible display screen.
  • the rotating shaft device can provide effective support for the flexible display screen in the unfolded state, which is conducive to improving the flatness of the flexible display screen in the unfolded state and improving the use of the flexible display screen. Use experience.
  • FIG. 1 schematically shows the structure of a folding screen device 10 in an unfolded state according to an embodiment.
  • FIG. 2 schematically shows the structure of the folding screen device 10 in a half-folded state.
  • FIG. 3 schematically shows the structure of the folding screen device 10 in the folded state.
  • the folding screen device 10 includes a housing 20 and a flexible display 50 .
  • the housing 20 includes a rotating shaft device 30 and a frame 40 .
  • the frame 40 is connected to the rotating shaft device 30 .
  • Frames 40 may be respectively provided on opposite sides of the rotating shaft device 30 .
  • the flexible display screen 50 is connected to the frame 40 .
  • the frame 40 can rotate and fold relative to the rotating shaft device 30 .
  • the folding screen device 10 including two frames 40 is used as an example for description.
  • the folding screen device 10 is in a folded state.
  • the folding screen device 10 moves away from each other from the stacked state and unfold to the same plane, the folding screen device 10 is in the unfolded state.
  • the process of the frame 40 from the folded state to the unfolded state is the unfolding process, and the process from the unfolded state to the folded state is the folding process.
  • the frame 40 may include a middle frame.
  • the frame 40 can be connected to the rotating shaft device 30 through the middle frame.
  • FIG. 4 schematically shows the partial exploded structure of the folding screen device 10 of the present application.
  • the flexible display screen 50 includes a display portion for displaying image information.
  • the flexible display screen 50 itself has bendability and can be folded under the action of external force.
  • the display portion of the flexible display screen 50 is unfolded to present image information to the user.
  • the display part may include a first display area 51 , a second display area 52 , and a third display area 53 .
  • the first display area 51 and the second display area 52 are respectively provided corresponding to the two frames 40 .
  • the third display area 53 may be provided corresponding to the rotating shaft device 30 .
  • the display part When the two frames 40 are in a folded state, the display part is in a bent state.
  • the first display area 51 and the second display area 52 of the display part can be stacked on each other, and the third display area 53 can be bent into an arc shape.
  • the third display area 53 can be bent into a water drop shape.
  • the folding screen device 10 can change its overall size by folding or unfolding, and can also have a larger display area in the unfolded state.
  • Electronic devices 60 may be respectively provided in the two frames 40 of the folding screen device 10.
  • the electronic devices 60 may include but are not limited to a processor, a memory, or a camera module.
  • a printed circuit board 70 (Printed Circuit Board, PCB) is provided in the frame 40 .
  • the electronic device 60 is provided on the printed circuit board 70 .
  • FIG. 5 schematically shows the structure of the rotating shaft device 30 of the present application.
  • the rotating shaft device 30 of the present application includes a back cover 31 .
  • the back cover 31 may be located between the two frames 40 .
  • the back cover 31 can block other structural components on the rotating shaft device 30, making the electronic device look neat and beautiful.
  • the position of the back cover 31 can remain relatively fixed.
  • the two frames 40 when the two frames 40 are in the unfolded state, the two frames 40 can block the back cover 31 so that the back cover 31 is invisible.
  • the back cover 31 can provide a mounting base for relevant structural components in the rotating shaft device 30 .
  • the back cover 31 may have a strip structure.
  • the side of the back cover 31 facing the flexible display screen 50 may have a receiving recess.
  • FIGS. 6 and 7 the rotating shaft device 30 also includes a lifting drive assembly 32 .
  • the lifting drive assembly 32 includes a transmission swing arm 321, a transmission shaft 322 and a lifting drive part 323. Transmission swing arm 321 and transmission shaft 322 connected.
  • the transmission shaft 322 is rotatably connected to the back cover 31 .
  • the lifting driving part 323 is connected with the transmission shaft 322. When the transmission swing arm 321 swings relative to the back cover 31, the transmission swing arm 321 can drive the transmission shaft 322 to rotate relative to the back cover 31.
  • the lifting drive part 323 is connected to the transmission shaft 322, when the transmission shaft 322 rotates, the transmission shaft 322 can The lifting driving part 323 is driven to move, so that the transmission swing arm 321, the transmission shaft 322 and the lifting driving part 323 realize synchronous linkage.
  • a shaft seat 311 may be provided on the back cover 31 . At least part of the shaft seat 311 may be disposed in the receiving recess.
  • the transmission shaft 322 of the lifting drive assembly 32 is rotatably connected to the shaft seat 311 .
  • the transmission swing arm 321 may include a limiting hole.
  • the limiting hole may be a non-circular hole.
  • the limiting hole of the transmission swing arm 321 is sleeved on the transmission shaft 322 .
  • the shape of the shaft section on the transmission shaft 322 that matches the limiting hole can match the shape of the limiting hole, so that the transmission swing arm 321 cannot rotate relative to the transmission shaft 322.
  • the transmission swing arm 321 swings, it can synchronously drive the transmission shaft 322.
  • the cross section of the limiting hole of the transmission swing arm 321 may include an arc segment and a straight segment.
  • the number of arc segments and straight line segments is both one.
  • a straight line segment connects the two endpoints of an arc segment.
  • the number of arc segments and straight line segments is both two.
  • Arc segments and straight line segments are set alternately.
  • a straight line segment connects the two endpoints of two arc segments.
  • the rotating shaft device 30 also includes a lifting plate 33 .
  • the lifting plate 33 is provided corresponding to the back cover 31 .
  • the lifting plate 33 can be disposed on the side of the back cover 31 facing the flexible display screen 50 .
  • the lifting driving part 323 of the lifting driving assembly 32 may be connected with the lifting plate 33 .
  • the lifting driving part 323 can transmit force to the lifting plate 33 .
  • the transmission shaft 322 of the lifting drive assembly 32 rotates, the transmission shaft 322 can drive the lifting driving part 323 to move, and the lifting driving part 323 can drive the lifting plate 33 to move up and down away from or close to the back cover 31 .
  • the lifting plate 33 can be switched between a raised position and a lowered position.
  • the movement of the lifting plate 33 away from the back cover 31 is a lifting process, and the movement of the lifting plate 33 close to the back cover 31 is a descending process.
  • the hinge assembly 30 also includes a screen support assembly 34 .
  • the transmission swing arm 321 is slidably connected to the screen support assembly 34 .
  • Screen support assembly 34 may provide support for flexible display screen 50 .
  • the screen support assembly 34 can provide support for the flexible display screen 50 below the flexible display screen 50 , reducing the possibility of concave deformation of the flexible display screen 50 and improving the flatness of the flexible display screen 50 .
  • the screen support assembly 34 can provide support for the flexible display screen 50 to guide the flexible display screen 50 to bend toward a desired bending shape, for example, so that the flexible display screen 50 can be easily bent into a water drop shape. , reducing the possibility that the flexible display screen 50 will break due to a small bending radius of the flexible display screen 50 .
  • the screen support assembly 34 may provide support for a portion of the flexible display 50 corresponding to the third display area 53 .
  • the screen support assembly 34 can drive the transmission shaft 322 to rotate relative to the back cover 31 through the transmission swing arm 321, and both the screen support assembly 34 and the transmission swing arm 321 can switch between the unfolded position and the folded position.
  • the screen support assembly 34 rotates relative to the back cover 31
  • the screen support assembly 34 drives the transmission swing arm 321 to rotate relative to the back cover 31
  • the transmission swing arm 321 slides relative to the screen support assembly 34 , so that the transmission swing arm 321 does not move against the screen support assembly 34 form motion constraints.
  • frame 40 may be connected to screen support assembly 34 .
  • frame 40 includes a middle frame. The frame 40 can be connected to the screen support assembly 34 through the middle frame.
  • the screen support assembly 34 When the screen support assembly 34 switches between the unfolded position and the folded position, the screen support assembly 34 drives the transmission swing arm 321 to rotate relative to the back cover 31, and at the same time, the transmission swing arm 321, the transmission shaft 322 and the lifting drive part 323 are linked to drive through the lifting The portion 323 drives the lifting plate 33 to move up and down away from or close to the back cover 31 so that the lifting plate 33 can switch between a raised position and a lowered position.
  • the screen support assembly 34 When the screen support assembly 34 is in the unfolded position, the flexible display screen 50 is in the unfolded state, and the lifting plate 33 is in the raised position, so that the lifting plate 33 can provide support for the flexible display screen 50 in the unfolded state.
  • the flexible display screen 50 When the screen support assembly 34 is in the folded position, the flexible display screen 50 is in the folded state, and the lifting plate 33 is in the lowered position, so that the lifting plate 33 can avoid the flexible display screen 50 in the folded state and reduce the flexibility of the rotating shaft device 30 in the folded state.
  • the flexible display screen 50 may be damaged.
  • the pivot device 30 also includes a screen support door panel 35 .
  • a screen support door panel 35 is provided on at least one side of the lifting plate 33.
  • the screen support door panel 35 is rotatably connected to the screen support assembly 34 , and the screen support door panel 35 is slidably connected to the back cover 31 .
  • the screen support door panel 35 can provide support for the flexible display screen 50 , thereby guiding the flexible display screen 50 to bend toward an expected bending shape, for example, making the flexible display screen 50 easy to bend into a water droplet. shape.
  • the screen support door panel 35 slides relative to the back cover 31 and forms an avoidance space below the flexible display screen 50 to avoid the flexible display screen 50 .
  • the screen support assembly 34 When the screen support assembly 34 rotates relative to the back cover 31, the screen support assembly 34 can drive the screen support door panel 35 to rotate relative to the screen support assembly 34. At the same time, the screen support door panel 35 slides synchronously relative to the back cover 31, so that the screen support door panel 35 does not support the screen.
  • Component 34 forms a motion constraint.
  • the rotating shaft device 30 in the embodiment of the present application includes a back cover 31 , a lifting drive assembly 32 , a lifting plate 33 , a screen support assembly 34 and a screen support door panel 35 .
  • the screen support assembly 34, the lifting driving assembly 32, the lifting plate 33 and the screen supporting door panel 35 can realize linkage.
  • the lifting plate 33 can be in the raised position, so that the lifting plate 33 can provide effective support for the flexible display screen 50 disposed above the rotating shaft device 30, which is beneficial to improving the flexible display screen in the unfolded state. 50% flatness improves the user experience of the flexible display 50%.
  • the lifting plate 33 and the screen support door panel 35 are arranged along the axial direction
  • the number of holes improves the mechanical strength of the lifting plate 33 itself and improves the supporting stability of the flexible display screen 50 by the lifting plate 33 .
  • FIG. 8 schematically shows the structure of the rotating shaft device 30 of the present application.
  • the number of lifting plates 33 may be more than two.
  • the lifting plates 33 and the screen support door panels 35 are arranged alternately. Therefore, there is no interference between the positions of each lifting plate 33 and the screen support door panel 35, so that each lifting plate 33 does not need to be provided with an avoidance space for avoiding the screen support door panel 35, which is beneficial to reducing the number of space provided on each lifting plate 33.
  • Number of holes are examples of holes.
  • the number of screen support door panels 35 may be more than two sets. Each set of screen support door panels 35 may include two screen support door panels 35 .
  • the number of lifting panels 33 may be two, and the number of screen support door panels 35 may be three groups. For example, along the axial direction X of the transmission shaft 322, three sets of screen support door panels 35 are arranged at intervals. A set of screen support door panels 35 are respectively provided at both ends of the back cover 31 .
  • a lifting plate 33 is provided between the two sets of screen support door panels 35, that is, along the axial direction X of the transmission shaft 322, screen support door panels 35 are provided on both sides of the lifting plate 33.
  • the number of screen support assemblies 34 may be two.
  • the two screen support components 34 are respectively connected to the back cover 31 .
  • Two screen support door panels 35 in each set of screen support door panels 35 may be connected to corresponding screen support assemblies 34 respectively.
  • lifting driving parts 323 are respectively provided at both ends of the lifting plate 33 .
  • the lifting driving parts 323 corresponding to the two ends of the lifting plate 33 can simultaneously apply lifting driving force to the lifting plate 33 , so that the overall force on the lifting plate 33 can be more balanced, which is beneficial to Improve the stability of the lifting movement process.
  • FIG. 9 is a cross-sectional structure along the P1-P1 direction in FIG. 8 .
  • Figure 10 schematically shows a partial cross-sectional structure of the rotating shaft device 30 of the present application in a folded state.
  • the lifting driving part 323 includes a dialing part 3231 .
  • the dialing part 3231 is offset from the axis of the transmission shaft 322 .
  • the motion trajectory of the dialing portion 3231 may be an arc-shaped trajectory around the axis of the transmission shaft 322 .
  • the lifting plate 33 may include a chute 331.
  • the dialing part 3231 cooperates with the slide groove 331 of the lifting plate 33 .
  • the transmission shaft 322 can drive the toggle portion 3231 to rotate relative to the chute 331 of the lifting plate 33 and simultaneously to slide relative to the chute 331 of the lifting plate 33 to drive the lifting plate 33 to move up and down.
  • the toggle part 3231 moves around the axis of the transmission shaft 322
  • the slide groove 331 of the lifting plate 33 can avoid the toggle part 3231, so that there will be no positional interference between the lifting plate 33 and the toggle part 3231.
  • the chute 331 may penetrate the side of the lifting plate 33 .
  • the chute 331 has an opening located on the side of the lifting plate 33 .
  • the dialing part 3231 of the lifting driving part 323 can be installed into the chute 331 through the opening.
  • a transmission shaft 322 and a lifting driving part 323 are respectively provided on both sides of the lifting plate 33 .
  • the width direction Y of the back cover 31 is perpendicular to the axial direction X of the transmission shaft 322 .
  • One end of the lifting plate 33 is provided with two corresponding lifting driving parts 323 .
  • the two lifting driving parts 323 can exert force on the end of the lifting plate 33 at the same time.
  • the lifting driving part 323 further includes a connecting block (not shown in the figure).
  • the connecting block connects the dialing part 3231 and the transmission shaft 322.
  • the dialing part 3231 is disposed on the area of the connecting block away from the transmission shaft 322 , so that the dialing part 3231 is biased to one side of the transmission shaft 322 .
  • the dialing part 3231 may have a columnar structure.
  • the axis of the dialing part 3231 and the axis of the transmission shaft 322 may be parallel to each other.
  • the two opposite wall surfaces on the chute 331 are both in contact with the dialing portion 3231 , so that there may be no play between the lifting plate 33 and the dialing portion 3231 . Therefore, when the toggle part 3231 moves the lifting plate 33, the toggle part 3231 and the lifting plate 33 can keep moving synchronously, and the gap between the toggle part 3231 and the lifting plate 33 is reduced, resulting in the lifting plate 33 and the toggle part 3231 The possibility of asynchronous movement or error in the movement position of the lifting plate 33. In addition, impact is less likely to occur between the dialing portion 3231 and the lifting plate 33, thereby reducing the possibility of abnormal noise. It should be noted that the thickness direction Z of the lifting plate 33 may refer to the stacking direction of the lifting plate 33 and the back cover 31 .
  • FIG. 11 is a cross-sectional structure along the P2-P2 direction in FIG. 8 .
  • Figure 12 schematically shows a partial cross-sectional structure of the rotating shaft device 30 of the present application in a folded state.
  • the transmission shaft 322 includes a first rotating shaft 3221 .
  • the first rotating shaft 3221 is rotatably connected to the back cover 31 .
  • a lifting driving part 323 is provided on at least one end of the first rotating shaft 3221.
  • the transmission swing arm 321 includes a first swing arm 3211.
  • the first swing arm 3211 is connected with the first rotating shaft 3221.
  • the screen support assembly 34 includes a screen pressure plate 341 and a first rail 342 .
  • the first track 342 is connected to the screen pressure plate 341 .
  • the first track 342 may be disposed below the screen pressure plate 341 .
  • the first swing arm 3211 is slidably connected to the first rail 342 .
  • the screen support assembly 34 switches between the unfolded position and the folded position. During switching, the first swing arm 3211 slides relative to the first rail 342, and the first swing arm 3211 drives the first rotating shaft 3221 to rotate.
  • the screen pressure plate 341 can provide support for the flexible display screen 50 to guide the flexible display screen 50 to bend toward an expected bending shape, for example, so that the flexible display screen 50 can be easily bent into a water drop shape, reducing the risk of bending.
  • the flexible display screen 50 has a small bending radius, which may cause the flexible display screen 50 to break.
  • the screen pressure plate 341 and the first rail 342 may be an integrally formed structure to improve the connection strength between the two.
  • the number of screen support assemblies 34 may be two.
  • the lifting plate 33 is disposed between the two screen pressure plates 341 .
  • the orthographic projection of the lifting plate 33 may not overlap with the orthographic projection of the screen pressure plate 341 .
  • first track 342 may be arcuate.
  • the connection point between the first swing arm 3211 and the first rail 342 is located at an end of the first rail 342 away from the lifting plate 33 .
  • the connection point between the first swing arm 3211 and the first rail 342 is located at an end of the first rail 342 close to the lifting plate 33 .
  • first track 342 may include an arcuate hole.
  • the first swing arm 3211 includes a first sliding column 3211a.
  • the first sliding column 3211a is slidably matched with the arc-shaped hole.
  • the first sliding column 3211a is located at an end of the arc-shaped hole away from the lifting plate 33 .
  • the first sliding column 3211a is located at one end of the arc-shaped hole close to the lifting plate 33 .
  • connection area between the first swing arm 3211 and the first rotating shaft 3221 is located on one side of the lifting driving part 323 .
  • the axial direction X of the transmission shaft 322 may be the same as the axial direction of the first rotating shaft 3221 .
  • a lifting driving part 323 is provided at one end of the first rotating shaft 3221 .
  • a lifting driving part 323 is provided at one end of the first rotating shaft 3221 close to the end of the back cover 31 .
  • the number of lifting plates 33 may be more than two. Along the axial direction of the first rotating shaft 3221, two or more lifting plates 33 may be arranged at intervals. Each lifting plate 33 may be provided with a corresponding first rotating shaft 3221.
  • the first rotating shafts 3221 corresponding to each lifting plate 33 can be set independently.
  • the number of first rotating shafts 3221 corresponding to each lifting plate 33 may be one group or more than two groups, which is not specifically limited in this application.
  • a set of first rotating shafts 3221 may include two first rotating shafts 3221.
  • two first rotating shafts 3221 in a set of first rotating shafts 3221 may be respectively disposed on both sides of the lifting plate 33 .
  • the two first rotating shafts 3221 are respectively connected to first swing arms 3211.
  • FIG. 13 is an enlarged schematic diagram of S in FIG. 6 .
  • Figure 14 is a cross-sectional structure along the P3-P3 direction in Figure 8.
  • Figure 15 schematically shows a partial cross-sectional structure of the rotating shaft device 30 of the present application in a folded state.
  • the transmission shaft 322 also includes a second rotating shaft 3222 .
  • a lifting driving part 323 is provided on at least one end of the second rotating shaft 3222.
  • the transmission swing arm 321 includes a second swing arm 3212.
  • the second swing arm 3212 is connected to the second rotating shaft 3222.
  • the screen support assembly 34 includes an adapter 343 , a screen pressure plate 341 and a second rail 344 .
  • the adapter 343 is connected to the screen pressure plate 341 .
  • the second track 344 is provided on the adapter 343 .
  • the second swing arm 3212 is slidably connected to the second rail 344 . When the screen support assembly 34 switches between the unfolded position and the folded position, the second swing arm 3212 slides relative to the second rail 344, and the second swing arm 3212 drives the second rotating shaft 3222 to rotate.
  • the rotating shaft device 30 can be connected to the frame 40 through the adapter 343 .
  • box Body 40 includes a middle frame.
  • the rotating shaft device 30 can be connected to the middle frame through the adapter 343 .
  • At least part of the adapter 343 may be located below the screen pressure plate 341 .
  • the adapter 343 and the second rail 344 may be an integrally formed structure, which is beneficial to improving the connection strength between the two.
  • FIG. 16 is a cross-sectional structure along the P4-P4 direction in FIG. 8 .
  • the second track 344 may be in a strip shape.
  • the connection point between the second swing arm 3212 and the second rail 344 is located at an end of the second rail 344 away from the lifting plate 33 .
  • the connection point between the second swing arm 3212 and the second rail 344 is located at an end of the second rail 344 close to the lifting plate 33 .
  • the second track 344 may include strip holes.
  • the strip holes may be waist-shaped holes.
  • the second swing arm 3212 includes a second sliding column 3212a.
  • the second sliding column 3212a is slidably matched with the strip hole.
  • the second sliding column 3212a is located at the end of the strip hole away from the lifting plate 33 .
  • the second sliding column 3212a is located at an end of the strip hole close to the lifting plate 33 .
  • connection area between the second swing arm 3212 and the second rotating shaft 3222 is located on one side of the lifting driving part 323.
  • the axial direction X of the transmission shaft 322 may be the same as the axial direction of the second rotating shaft 3222 .
  • a lifting driving part 323 is provided at one end of the second rotating shaft 3222 .
  • the number of lifting plates 33 may be more than two. Along the axial direction of the second rotating shaft 3222, two or more lifting plates 33 may be arranged at intervals. Each lifting plate 33 may be provided with a corresponding second rotating shaft 3222.
  • the second rotating shafts 3222 corresponding to each lifting plate 33 can be set independently.
  • the number of second rotating shafts 3222 corresponding to each lifting plate 33 may be one group or more than two groups, which is not specifically limited in this application.
  • a set of second rotating shafts 3222 may include two second rotating shafts 3222 .
  • two second rotating shafts 3222 in a set of second rotating shafts 3222 may be respectively disposed on both sides of the lifting plate 33 .
  • the two second rotating shafts 3222 are respectively connected to second swing arms 3212.
  • a second rotating shaft 3222 and a second swing arm 3212 are respectively provided on opposite sides of the lifting plate 33 .
  • the second swing arm 3212 includes a socket portion 3213.
  • the sleeve portion 3213 is sleeved on the second rotating shaft 3222.
  • the socket portion 3213 cannot rotate relative to the second rotating shaft 3222.
  • the socket portion 3213 includes a spiral hole 3213a.
  • the rotating shaft device 30 also includes a transmission slide block 36 .
  • the transmission slider 36 is disposed between the two second rotating shafts 3222 .
  • the transmission slider 36 includes a guide portion 361 .
  • the guide portion 361 and the spiral hole 3213a can be slidably matched.
  • the socket portion 3213 drives the second rotating shaft 3222 to rotate synchronously
  • the socket portion 3213 drives the transmission slider 36 to move synchronously along the axial direction of the second rotating shaft 3222.
  • the second rotating shaft 3222 on one side of the lifting plate 33 is forced to rotate relative to the back cover 31 , the power will be transmitted to the second rotating shaft 3222 on the other side through the socket portion 3213 and the transmission slider 36 , thereby effectively ensuring the lifting plate 33
  • the second rotating shafts 3222 on opposite sides can rotate synchronously through the transmission slider 36 to improve the rotation accuracy of the second rotating shaft 3222.
  • two spiral holes 3213a are provided on the socket portion 3213 of a second swing arm 3212. Along the axial direction of the second rotating shaft 3222, two spiral holes 3213a are spaced apart.
  • the guide portion 361 of the transmission slide block 36 may be spherical, which is beneficial to improving the stability of the sliding process of the guide portion 361 and the spiral hole 3213a.
  • the socket portion 3213 includes a receiving portion (not shown in the figure) and a pushing protrusion facing the receiving portion. Wheel 3213b.
  • the pushing cam 3213b is sleeved on the second rotating shaft 3222.
  • the second rotating shaft 3222 passes through the center hole of the ejection cam 3213b.
  • the rotating shaft device 30 also includes a damping component 37 . At least part of the damping component 37 is located within the receptacle.
  • the damping component 37 includes an elastic member 371 and a guide cam 372 .
  • the elastic member 371 and the guide cam 372 are both sleeved on the second rotating shaft 3222.
  • the guide cam 372 is provided between the elastic member 371 and the ejection cam 3213b.
  • the push cam 3213b and the guide cam 372 mesh with each other.
  • the ejection cam 3213b and the guide cam 372 are each provided with an engaging groove and an engaging convex portion, and the engaging convex portion of one is inserted into the engaging groove of the other to achieve meshing between the two.
  • the end of the guide cam 372 facing away from the elastic member 371 may be provided with an engaging groove and an engaging protrusion.
  • the two guide cams 372 respectively sleeved on the two second rotating shafts 3222 and located on the same side of the elastic member 371 are connected to each other, so that when the pushing cam 3213b and the second rotating shaft 3222 rotate synchronously, the pushing cam 3213b rotates relative to the guide cam 372 , and the guide cam 372 does not rotate.
  • the two guide cams 372 may be of an integrally formed structure, which is beneficial to improving the connection strength.
  • the ejector cam 3213b and the second rotating shaft 3222 rotate synchronously, the ejector cam 3213b rotates relative to the guide cam 372, so that when the engagement convex portion of the ejector cam 3213b withdraws from the engagement groove of the guide cam 372, the guide cam 372 can be pushed Moving along the axial direction of the second rotating shaft 3222 causes the guide cam 372 to compress the elastic member 371 .
  • the elastic member 371 releases elastic potential energy, which can push the guide cam 372 to move along the axial direction of the second rotating shaft 3222, so that the guide cam 372 and the ejection cam 3213b re-engage.
  • the rotating shaft device 30 forms resistance to the rotation process of the second rotating shaft 3222 through the pushing cam 3213b, the guide cam 372 and the elastic member 371, so that the second swing arm 3212 and the second rotating shaft 3222 can hover at the predetermined position, and it is beneficial to Ensure that the second swing arm 3212 and the second rotating shaft 3222 rotate smoothly.
  • elastic member 371 may be a coil spring.
  • guide cams 372 are provided on opposite sides of the elastic member 371 along the axial direction of the second rotating shaft 3222 .
  • the socket portion 3213 includes two ejection cams 3213b.
  • the two ejection cams 3213b can synchronously push the two guide cams 372 to move along the axial direction of the second rotating shaft 3222, so that the two guide cams 372 simultaneously compress or release the elastic member 371, which is beneficial to ensuring the sleeve portion 3213 and the damping component 37
  • the stability and balance of power transmission are conducive to further improving the stability of the rotation process of the second swing arm 3212 and the second rotating shaft 3222.
  • FIG. 17 schematically shows the structure of the transmission slider 36 of the present application.
  • Figures 18 and 19 schematically show the structure of the lifting plate 33 of the present application.
  • the lifting plate 33 is provided on the side of the transmission slider 36 facing away from the back cover 31 .
  • the transmission slide 36 includes two side walls 362 .
  • An escape groove 363 facing the lifting plate 33 is formed between the two side walls 362 .
  • the lifting plate 33 has an escape portion 332 .
  • the side wall 362 of the transmission slider 36 is arranged corresponding to the escape portion 332 of the lifting plate 33 . Therefore, the transmission slider 36 and the lifting plate 33 are less likely to come into contact, reducing the possibility of collision and scratching between the two.
  • the edge of the lifting plate 33 is provided with a notch.
  • This notch forms an escape portion 332 .
  • each lifting plate 33 may be provided with a first rotating shaft 3221 and a first swing arm 3211.
  • each lifting plate 33 may be provided with a second rotating shaft 3222 and a second swing arm 3212 correspondingly.
  • each lifting plate 33 may be provided with a first rotating shaft 3221 and a second rotating shaft 3222.
  • the first rotating shaft 3221 is connected to the first swing arm 3211.
  • the second rotating shaft 3222 is connected to the second swing arm 3212.
  • the second swing arm 3212 includes a socket portion 3213.
  • the socket portion 3213 includes a receiving portion and an ejection cam 3213b facing the receiving portion.
  • the rotating shaft device 30 also includes a damping component 37 .
  • the damping component 37 includes an elastic member 371 and a guide cam 372 .
  • the elastic member 371 and the guide cam 372 are both sleeved on the second rotating shaft 3222.
  • the screen support assembly 34 drives the first swing arm 3211 and the second swing arm 3212 to rotate relative to the back cover 31 .
  • the first swing arm 3211 and the second swing arm 3212 respectively drive the first rotating shaft 3221 and the second rotating shaft 3222 to rotate relative to the back cover 31 .
  • the lifting driving parts 323 respectively provided on the first rotating shaft 3221 and the second rotating shaft 3222 can synchronously drive the lifting plate 33 to move up and down.
  • first rotating shaft 3221 and the second rotating shaft 3222 are spaced apart along the axial direction of the first rotating shaft 3221.
  • the axial direction of the first rotating shaft 3221 may be the same as the axial direction of the second rotating shaft 3222.
  • a lifting driving part 323 is provided at an end of the first rotating shaft 3221 away from the second rotating shaft 3222 , and a lifting driving part 323 is provided at an end of the second rotating shaft 3222 away from the first rotating shaft 3221 . Therefore, the lifting driving parts 323 provided on the first rotating shaft 3221 and the second rotating shaft 3222 can respectively apply driving force to the opposite ends of the lifting plate 33 synchronously, so that the overall force of the lifting plate 33 is more balanced, which is beneficial to improving the lifting plate 33 Smoothness of the movement process.
  • the number of lifting plates 33 may be two.
  • one lifting plate 33 is provided with a set of first rotating shafts 3221 and a set of second rotating shafts 3222.
  • a group of first rotating shafts 3221 and a group of second rotating shafts 3222 are spaced apart.
  • a set of first rotating shafts 3221 can be disposed close to the screen support door panel 35 .
  • One set of first rotating shafts 3221 includes two first rotating shafts 3221 .
  • a first swing arm 3211 is connected to a first rotating shaft 3221.
  • a set of second rotating shafts 3222 includes two second rotating shafts 3222 .
  • a second rotating shaft 3222 is connected to a second swing arm 3212 and a damping component 37 .
  • a transmission slide block 36 is disposed between the two second rotating shafts 3222.
  • the other lifting plate 33 is provided with two sets of first rotating shafts 3221 and a set of second rotating shafts 3222 correspondingly.
  • a set of second rotating shafts 3222 is provided between the two groups of first rotating shafts 3221.
  • One set of first rotating shafts 3221 includes two first rotating shafts 3221 .
  • a first swing arm 3211 is connected to a first rotating shaft 3221.
  • a set of second rotating shafts 3222 includes two second rotating shafts 3222 .
  • a second rotating shaft 3222 is connected to a second swing arm 3212 and a damping component 37 .
  • a transmission slide block 36 is disposed between the two second rotating shafts 3222.
  • the lifting plate 33 includes a narrowing section 333 located between the two first swing arms 3211 and a narrowing section 333 between the two second swing arms 3212 .
  • the narrow section 333 of the lifting plate 33 can effectively avoid the first swing arm 3211 or the second swing arm 3212, so that the lifting plate 33 will not interfere with the first swing arm 3211 or the second swing arm 3212. Position interference.
  • the rotating shaft device 30 includes a guide protrusion (not shown in the figure) and a guide recess (not shown in the figure).
  • One of the lifting plate 33 and the back cover 31 is provided with a guide convex portion, and the other is provided with a guide concave portion.
  • the guide protrusion and the guide recess are slidably connected.
  • the guide convex portion can slide relative to the guide concave portion, so that the guide convex portion and the guide concave portion slide and cooperate to provide guidance during the lifting process of the lifting plate 33, reducing the possibility of the lifting plate 33 tilting, which is beneficial to Improve the position stability of the lifting plate 33 during the lifting process.
  • guide protrusions are provided on the lifting plate 33 , and guide recesses are provided on the back cover 31 .
  • the guide protrusion may be a guide post.
  • the surface of the lifting plate 33 facing away from the back cover 31 has a groove 334 .
  • the bottom wall of the groove 334 may be curved.
  • the lifting plate 33 corresponds to the bending area of the flexible display screen 50, and the groove 334 on the lifting plate 33 can effectively avoid the bending area of the flexible display screen 50.
  • display screen 50 to reduce the possibility that the lifting plate 33 may squeeze the flexible display screen 50 and cause damage to the flexible display screen 50 .
  • the shape of the groove 334 on the lifting plate 33 can match the bent shape of the bending area of the flexible display screen 50 .
  • FIG. 20 is a cross-sectional structure along the P5-P5 direction in FIG. 8 .
  • Figure 21 schematically shows a partial cross-sectional structure of the rotating shaft device 30 of the present application in a folded state.
  • the screen support assembly 34 includes an adapter 343 and a screen pressure plate 341 .
  • the adapter 343 is connected to the screen pressure plate 341 .
  • the screen support door panel 35 is rotatably connected to the adapter 343 .
  • the portion of the screen support door panel 35 located below the screen pressure plate 341 is used to be rotatably connected to the adapter 343 .
  • the adapter 343 can drive the screen support door panel 35 to rotate relative to the back cover 31 , and the screen support door panel 35 rotates relative to the adapter 343 synchronously.
  • the portion of the screen support door panel 35 located below the screen pressure plate 341 may be rotatably connected to the adapter 343 through a rotating shaft.
  • FIG. 22 is an enlarged schematic diagram of position M in FIG. 5 .
  • the screen pressure plate 341 includes an avoidance gap 3411 .
  • An avoidance gap 3411 may be provided on the edge area of the screen pressure plate 341 facing the back cover 31 .
  • the screen support door panel 35 includes a screen support block 351 .
  • the screen support block 351 is arranged corresponding to the avoidance gap 3411.
  • the screen support surface of the screen support block 351 is located in the avoidance gap 3411 , so that the screen support surface of the screen support block 351 is positioned lower than the screen support surface of the screen support door panel 35 . There may be a gap between the screen support surface of the screen support block 351 and the flexible display screen 50 .
  • the screen support surface of the screen support block 351 can be flush with the screen support surface of the screen support door panel 35 , thereby jointly providing support for the bending area of the flexible display screen 50 .
  • two screen pressure plates 341 are connected to the back cover 31 .
  • the two screen support door panels 35 located on the same side of the lifting plate 33 are connected to the back cover 31 .
  • the avoidance notches 3411 of the two screen pressure plates 341 are disposed in a staggered manner, and the screen support blocks 351 of the two screen support door panels 35 are disposed in a staggered manner.
  • the screen support door panel 35 includes a rotating connection portion 352 and an arc-shaped sliding portion 353 .
  • the rotary connection part 352 is rotatably connected to the screen support component 34 .
  • the rotating connection portion 352 may be connected to the screen support assembly 34 through a rotating shaft.
  • the screen support assembly 34 includes an adapter 343 and a screen pressure plate 341 .
  • the rotating connection part 352 is located below the screen pressure plate 341 .
  • the rotary connection part 352 is rotatably connected to the adapter 343 .
  • the back cover 31 includes an arc-shaped slide 312 .
  • the arc sliding part 353 and the arc slide 312 are slidably connected.
  • the arc-shaped slide 312 is in an arc shape, and correspondingly, the arc-shaped sliding part 353 is in an arc shape.
  • the axis of the arcuate slide 312 and the axis of the arcuate sliding part 353 are coaxially arranged.
  • the arc-shaped sliding portions 353 of the screen support door panel 35 move away from each other, so that the portion of the screen support door panel 35 provided with the arc-shaped sliding portion 353 moves away from the lifting plate 33
  • One end of the lifting plate 33 is moved away to form an avoidance space at one end of the lifting plate 33 to avoid the bending area of the flexible display screen 50 .
  • the screen support door panel 35 further includes a plug hole 354.
  • the back cover 31 also includes a plug block 313 .
  • the plug-in block 313 is inserted into the plug-in hole 354 .
  • the arc-shaped sliding portions 353 of the screen support door panel 35 move away from each other, and the plug-in block 313 can move out of the plug-in hole 354 .
  • the arc-shaped sliding portions 353 of the screen support door panel 35 approach each other, and the plug-in block 313 can move into the plug-in hole 354 .
  • the plug block 313 has an arc-shaped structure.
  • one screen support door panel 35 may include two insertion holes 354 .
  • two insertion holes 354 are spaced apart.
  • two plug-in blocks 313 are provided on the back cover 31 corresponding to one screen support door panel 35 .
  • connection should be understood in a broad sense.
  • it can be a fixed connection or a fixed connection.
  • Indirect connection through an intermediary can be the internal connection between two elements or the interaction between two elements.
  • plural means two or more.
  • the term “and/or” in this article is just an association relationship that describes related objects, indicating that three relationships can exist. For example, A and/or B can mean: A exists alone, A and B exist simultaneously, and they exist alone. B these three situations.
  • the character "/" in this article generally indicates that the related objects before and after are an “or” relationship; in the formula, the character "/" indicates that the related objects before and after are a "division" relationship.
  • the size of the sequence numbers of the above-mentioned processes does not mean the order of execution.
  • the execution order of each process should be determined by its functions and internal logic, and should not be used in the implementation of the present application.
  • the implementation of the examples does not constitute any limitations.

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Abstract

一种转轴装置（30）以及折叠屏设备（10），转轴装置（30）至少包括背盖（31）、升降驱动组件（32）、升降板（33）、屏幕支撑组件（34）和屏幕支撑门板（35），升降驱动组件（32）包括传动摆臂（321）、传动轴（322）和升降驱动部（323），传动轴（322）可转动连接于背盖（31），升降板（33）对应背盖（31）设置，升降驱动部（323）与升降板（33）相连，传动摆臂（321）可滑动连接于屏幕支撑组件（34），沿传动轴（322）的轴向升降板（33）的至少一侧设置有屏幕支撑门板（35），屏幕支撑门板（35）可转动连接于屏幕支撑组件（34），并可滑动连接于背盖（31）；该转轴装置（30）可以提高转轴装置（30）对柔性显示屏（50）的支撑稳定性。

Description

转轴装置以及折叠屏设备
本申请要求于2022年08月22日提交中国专利局、申请号为202211007225.0、申请名称为“转轴装置以及折叠屏设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及终端技术领域，特别涉及一种转轴装置以及折叠屏设备。
背景技术
随着电子设备的爆发式增长，电子设备的功能越来越多。电子设备的显示屏用于向用户呈现图像信息。在一些使用场景下，用户期望电子设备的显示屏可以具有更大的显示面积。目前电子设备为单屏显示，更大的显示面积意味着电子设备的尺寸更大，从而使得电子设备失去了便携性。
为了平衡电子设备的尺寸和显示面积，电子设备可以采用折叠式结构。例如，两个壳体可以绕转轴装置相对转动以展开或折叠。在两个壳体上覆盖柔性显示屏。两个壳体展开至同一平面时，柔性显示屏呈展开状态，并具有较大的显示面积。两个壳体相互折叠时，柔性显示屏呈折叠状态，并且电子设备具有较小的体积。在柔性显示屏处于展开状态时，转轴装置对柔性显示屏的支撑稳定性偏差，影响展开状态的柔性显示屏的平整度。
发明内容
本申请实施例提供一种转轴装置以及折叠屏设备，可以提高转轴装置对柔性显示屏的支撑稳定性。
本申请第一方面提供一种转轴装置，用于折叠屏设备。转轴装置至少包括背盖、升降驱动组件、升降板、屏幕支撑组件以及屏幕支撑门板。
升降驱动组件包括传动摆臂、传动轴和升降驱动部。传动摆臂与传动轴相连。传动轴可转动连接于背盖。升降驱动部与传动轴相连。升降板对应背盖设置。升降驱动部与升降板相连。传动摆臂可滑动连接于屏幕支撑组件。沿传动轴的轴向，升降板的至少一侧设置有屏幕支撑门板。屏幕支撑门板可转动连接于屏幕支撑组件，并且屏幕支撑门板可滑动连接于背盖。其中，屏幕支撑组件通过传动摆臂带动传动轴相对背盖转动，以在展开位置和折叠位置之间切换。传动轴带动升降驱动部运动。升降驱动部驱动升降板远离或靠近背盖升降移动，以在升起位置和下降位置之间切换。屏幕支撑组件带动屏幕支撑门板相对屏幕支撑组件转动并且同步相对背盖滑动。
本申请实施例的转轴装置包括背盖、升降驱动组件、升降板、屏幕支撑组件以及屏幕支撑门板。其中，屏幕支撑组件、升降驱动组件、升降板以及屏幕支撑门板可以实现联动。在屏幕支撑组件处于展开位置时，升降板可以处于升起位置，从而升降板可以为设置于转轴装置上方的柔性显示屏提供有效支撑，有利于改善处于展开状态的 柔性显示屏的平整度，提升柔性显示屏的使用体验。
在一种可能的实施方式中，升降板的数量为两个以上。沿传动轴的轴向，升降板与屏幕支撑门板交替设置。因此，每个升降板和屏幕支撑门板位置不存在干涉，使得每个升降板上均不需要设置用于避让屏幕支撑门板的避让空间，有利于减少每个升降板上设置的孔洞数量。
在一种可能的实施方式中，沿传动轴的轴向，升降板的两端分别对应设置有升降驱动部。在传动轴相对背盖发生转动时，升降板的两端对应设置的升降驱动部可以同步向升降板施加升降驱动力，从而可以使得升降板整体受力较为均衡，有利于提高升降运动过程的稳定性。
在一种可能的实施方式中，升降驱动部包括拨动部。拨动部偏置于传动轴的轴线。升降板包括滑槽。拨动部与滑槽相配合。传动轴带动拨动部相对滑槽转动并且相对滑槽滑动，以驱动升降板升降移动。拨动部绕传动轴的轴线运动时，升降板的滑槽可以避让拨动部，从而升降板与拨动部之间不会发生位置干涉。
在一种可能的实施方式中，传动轴包括第一转轴。第一转轴的至少一端设置有升降驱动部。传动摆臂包括第一摆臂。第一摆臂与第一转轴相连。屏幕支撑组件包括屏幕压板和第一轨道。第一轨道连接于屏幕压板。第一摆臂可滑动连接于第一轨道。屏幕支撑组件在展开位置和折叠位置之间切换时，第一摆臂相对第一轨道滑动，第一摆臂带动第一转轴转动。
在一种可能的实施方式中，传动轴还包括第二转轴。第二转轴的至少一端设置有升降驱动部。传动摆臂包括第二摆臂。第二摆臂与第二转轴相连。屏幕支撑组件包括转接件、屏幕压板和第二轨道。转接件与屏幕压板相连。第二轨道设置于转接件。第二摆臂可滑动连接于第二轨道。屏幕支撑组件在展开位置和折叠位置之间切换时，第二摆臂相对第二轨道滑动，第二摆臂带动第二转轴转动。
在一种可能的实施方式中，屏幕支撑门板可转动连接于转接件。
在一种可能的实施方式中，屏幕压板包括避让缺口。屏幕支撑门板包括屏幕支撑块。屏幕支撑块对应避让缺口设置。屏幕支撑组件在展开位置和折叠位置之间切换时，屏幕支撑门板相对屏幕支撑组件转动，并且屏幕支撑门板相对背盖滑动，以带动屏幕支撑块在避让缺口内移动。
在一种可能的实施方式中，两个屏幕压板连接于背盖。位于升降板同侧的两个屏幕支撑门板连接于背盖。沿垂直于传动轴的轴向的方向，两个屏幕压板的避让缺口错位设置，两个屏幕支撑门板的屏幕支撑块错位设置。
在一种可能的实施方式中，升降板的相对两侧分别设置第二转轴和第二摆臂，第二摆臂包括套接部，套接部套设于第二转轴，套接部包括螺旋孔。转轴装置还包括传动滑块。传动滑块设置于两个第二转轴之间。传动滑块包括导向部。导向部和螺旋孔可滑动配合。套接部带动第二转轴同步转动时，套接部驱动传动滑块沿第二转轴的轴向同步移动。
升降板一侧的第二转轴受力相对背盖转动时，会通过套接部和传动滑块将动力传递至另一侧的第二转轴，从而有效保证升降板的相对两侧的第二转轴可以通过传动滑块实现同步转动，提高第二转轴的转动精度。
在一种可能的实施方式中，套接部包括容纳部以及面向容纳部的推顶凸轮。转轴装置还包括阻尼部件。至少部分的阻尼部件位于容纳部内。阻尼部件包括弹性件和导向凸轮。弹性件和导向凸轮均套设于第二转轴。导向凸轮设置于弹性件和推顶凸轮之间。推顶凸轮与导向凸轮相互啮合。套设于两个第二转轴上并且位于弹性件同侧的两个导向凸轮相互连接。
转轴装置通过推顶凸轮、导向凸轮和弹性件对第二转轴的转动过程形成阻力，从而使得第二摆臂和第二转轴可以在预定位置实现悬停，并且有利于保证第二摆臂和第二转轴转动过程平稳。
在一种可能的实施方式中，沿第二转轴的轴向，弹性件的相对两侧均设置有导向凸轮。
两个推顶凸轮可以同步推动两个导向凸轮沿第二转轴的轴向移动，使得两个导向凸轮同时压缩或释放弹性件，从而有利于保证套接部和阻尼部件动力传递的稳定性和均衡性，有利于进一步提高第二摆臂和第二转轴转动过程的平稳性。
在一种可能的实施方式中，升降板设置于传动滑块背向背盖的一侧。传动滑块包括两个侧壁。两个侧壁之间形成面向升降板的避让槽。升降板具有避让部，侧壁对应避让部设置。
传动滑块和升降板不易发生接触，降低两者发生碰撞、刮擦的可能性。
在一种可能的实施方式中，转轴装置包括导向凸部和导向凹部。升降板和背盖中的一者上设置导向凸部，另一者上设置导向凹部。沿升降板的升降方向，导向凸部与导向凹部可滑动连接。
升降板升降过程中，导向凸部可以相对导向凹部滑动，从而导向凸部和导向凹部滑动配合的方式，可以为升降板升降过程提供导向，降低升降板发生倾斜的可能性，有利于提高升降板升降过程的位置稳定性。
在一种可能的实施方式中，升降板背向背盖的表面具有凹槽。凹槽的底壁呈弧形。
在柔性显示屏处于折叠状态时，升降板与柔性显示屏的弯折区对应，而升降板上的凹槽可以有效避让柔性显示屏，降低升降板对柔性显示屏造成挤压而导致柔性显示屏发生损坏的可能性。
在一种可能的实施方式中，屏幕支撑门板包括转动连接部和弧形滑动部。转动连接部可转动连接于屏幕支撑组件。背盖包括弧形滑道。弧形滑动部与弧形滑道可滑动连接。
在一种可能的实施方式中，屏幕支撑门板还包括插接孔。背盖还包括插接块。插接块穿设于插接孔。屏幕支撑组件在展开位置和折叠位置之间切换时，屏幕支撑门板相对屏幕支撑组件转动，并且屏幕支撑门板相对背盖滑动，插接块相对插接孔移动。
本申请第二方面提供一种折叠屏设备，其包括壳体以及柔性显示屏。壳体包括框体以及如上述的转轴装置。转轴装置至少包括背盖、升降驱动组件、升降板、屏幕支撑组件以及屏幕支撑门板。升降驱动组件包括传动摆臂、传动轴和升降驱动部。传动摆臂与传动轴相连。传动轴可转动连接于背盖。升降驱动部与传动轴相连。升降板对应背盖设置。升降驱动部与升降板相连。传动摆臂可滑动连接于屏幕支撑组件。沿传动轴的轴向，升降板的至少一侧设置有屏幕支撑门板。屏幕支撑门板可转动连接于屏 幕支撑组件，并且屏幕支撑门板可滑动连接于背盖。其中，屏幕支撑组件通过传动摆臂带动传动轴相对背盖转动，以在展开位置和折叠位置之间切换。传动轴带动升降驱动部运动。升降驱动部驱动升降板远离或靠近背盖升降移动，以在升起位置和下降位置之间切换。屏幕支撑组件带动屏幕支撑门板相对屏幕支撑组件转动并且同步相对背盖滑动。框体连接于屏幕支撑组件。柔性显示屏与框体相连。
附图说明
图1为本申请实施例提供的折叠屏设备展开状态的结构示意图；
图2为本申请实施例提供的折叠屏设备半折叠状态的结构示意图；
图3为本申请实施例提供的折叠屏设备折叠状态的结构示意图；
图4为本申请实施例提供的折叠屏设备的局部分解结构示意图；
图5为本申请一实施例提供的转轴装置的结构示意图；
图6为本申请一实施例提供的转轴装置的局部分解结构示意图；
图7为图6中H处的放大示意图；
图8为本申请一实施例提供的转轴装置的结构示意图；
图9为图8中沿P1-P1方向的剖视结构示意图；
图10为本申请一实施例提供的转轴装置处于折叠状态的局部剖视结构示意图；
图11为图8中沿P2-P2方向的剖视结构示意图；
图12为本申请一实施例提供的转轴装置处于折叠状态的局部剖视结构示意图；
图13为图6中S处的放大示意图；
图14为图8中沿P3-P3方向的剖视结构示意图；
图15为本申请一实施例提供的转轴装置处于折叠状态的局部剖视结构示意图；
图16为图8中沿P4-P4方向的剖视结构示意图；
图17为本申请一实施例提供的传动滑块的结构示意图；
图18为本申请一实施例提供的升降板的结构示意图；
图19为本申请一实施例提供的升降板的结构示意图；
图20为图8中沿P5-P5方向的剖视结构示意图；
图21为本申请一实施例提供的转轴装置处于折叠状态的局部剖视结构示意图；
图22为图5中M处放大示意图。
附图标记：
10、折叠屏设备；
20、壳体；
30、转轴装置；
31、背盖；311、轴座；312、弧形滑道；313、插接块；
32、升降驱动组件；
321、传动摆臂；3211、第一摆臂；3211a、第一滑柱；3212、第二摆臂；3212a、
第二滑柱；3213、套接部；3213a、螺旋孔；3213b、推顶凸轮；
322、传动轴；3221、第一转轴；3222、第二转轴；
323、升降驱动部；3231、拨动部；
33、升降板；331、滑槽；332、避让部；333、收窄段；334、凹槽；
34、屏幕支撑组件；
341、屏幕压板；3411、避让缺口；
342、第一轨道；
343、转接件；
344、第二轨道；
35、屏幕支撑门板；351、屏幕支撑块；352、转动连接部；353、弧形滑动部；
354、插接孔；
36、传动滑块；361、导向部；362、侧壁；363、避让槽；
37、阻尼部件；371、弹性件；372、导向凸轮；
40、框体；
50、柔性显示屏；51、第一显示区域；52、第二显示区域；53、第三显示区域；
60、电子器件；
70、印制电路板；
X、轴向；Y、宽度方向；Z、厚度方向。
具体实施方式
本申请实施例中的电子设备可以称为用户设备(user equipment，UE)或终端(terminal)等，例如，电子设备可以为平板电脑(portable android device，PAD)、个人数字处理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备、车载设备、可穿戴设备、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等移动终端或固定终端。本申请实施例中对终端设备的形态不做具体限定。
本申请实施例中，以电子设备为具有无线通信功能的手持设备为例进行说明。无线通信功能的手持设备例如可以是折叠屏设备。折叠屏设备可以是包括可折叠的柔性显示屏的可折叠手机。
相关技术中，折叠屏设备包括框体和转轴装置。转轴装置的两侧分别设置框体。框体可以相对转轴装置转动，使得框体可以在折叠状态和展开状态之间切换。柔性显示屏可以与框体相连。框体在折叠状态和展开状态之间切换时，柔性显示屏可以同步在展开状态和折叠状态切换。柔性显示屏处于展开状态时，框体可以为柔性显示屏提供支撑。然而，在柔性显示屏对应转轴装置的区域，转轴装置对柔性显示屏的支撑作用效果偏差，使得柔性显示屏对应转轴装置的区域平整度偏差，影响柔性显示屏的使用体验。
本申请实施例提供的折叠屏设备，转轴装置可以对处于展开状态的柔性显示屏提供有效支撑，有利于改善处于展开状态的柔性显示屏的平整度，提升柔性显示屏的使 用体验。
下面对本申请实施例提供的可实现方式进行阐述。
图1示意性地显示了一实施例的折叠屏设备10展开状态的结构。图2示意性地显示了折叠屏设备10半折叠状态的结构。图3示意性地显示了折叠屏设备10折叠状态的结构。参见图1至图3所示，折叠屏设备10包括壳体20和柔性显示屏50。壳体20包括转轴装置30和框体40。框体40连接于转轴装置30。转轴装置30相对两侧可以分别设置有框体40。柔性显示屏50连接于框体40。
框体40可以相对转轴装置30转动、翻折。本申请中，以折叠屏设备10包括两个框体40为示例进行说明。两个框体40相互层叠时，折叠屏设备10处于折叠状态。两个框体40从层叠状态相互远离并且展开至同一平面时，折叠屏设备10处于展开状态。框体40从折叠状态到展开状态的过程为展开过程，而从展开状态到折叠状态为折叠过程。
框体40可以包括中框。框体40可以通过中框与转轴装置30相连。
图4示意性地显示了本申请的折叠屏设备10的局部分解结构。参见图4所示，柔性显示屏50包括用于显示图像信息的显示部。柔性显示屏50自身具有可折弯性能，受外力作用后可以实现折叠。折叠屏设备10处于展开状态时，柔性显示屏50的显示部展开以便于向用户呈现图像信息。显示部可以包括第一显示区域51、第二显示区域52和第三显示区域53。第一显示区域51和第二显示区域52分别对应两个框体40设置。第三显示区域53可以对应转轴装置30设置。
两个框体40处于折叠状态时，显示部处于折弯状态。显示部的第一显示区域51和第二显示区域52可以相互层叠，而第三显示区域53可以折弯成弧形状态，例如第三显示区域53可以折弯成水滴形。
两个框体40处于展开状态时，显示部处于展开状态，而第一显示区域51、第二显示区域52和第三显示区域53呈现平整状态。折叠屏设备10通过折叠或展开的方式，可以改变自身整体尺寸，同时展开状态下也可以具有较大的显示面积。
折叠屏设备10的两个框体40中可以分别设置有电子器件60，例如，电子器件60可以包括但不限于处理器、存储器或摄像模组。在一些示例中，框体40内设置有印制电路板70(Printed Circuit Board，PCB)。电子器件60设置于印制电路板70。
图5示意性地显示了本申请的转轴装置30的结构。参见图5所示，本申请的转轴装置30包括背盖31。背盖31可以位于两个框体40之间。背盖31可以对转轴装置30上的其他结构件形成遮挡，使得电子设备外观整洁、美观。两个框体40相对转轴装置30转动时，背盖31的位置可以保持相对固定。在一些示例中，两个框体40处于展开状态时，两个框体40可以将背盖31遮挡住以使背盖31处于不可见状态。两个框体40处于折叠状态时，至少部分的背盖31可以外露于两个框体40而处于可见状态。背盖31可以为转轴装置30中相关的结构件提供安装基础。在一些示例中，背盖31可以为条形结构。背盖31面向柔性显示屏50的一侧可以具有容纳凹部。
图6示意性地显示了本申请的转轴装置30的局部分解结构。图7为图6中H处的放大示意图。参见图6和图7所示，转轴装置30还包括升降驱动组件32。升降驱动组件32包括传动摆臂321、传动轴322和升降驱动部323。传动摆臂321与传动轴 322相连。传动轴322可转动连接于背盖31。升降驱动部323与传动轴322相连。传动摆臂321相对背盖31做摆动运动时，传动摆臂321可以带动传动轴322相对背盖31转动，由于升降驱动部323与传动轴322相连，因此传动轴322转动时，传动轴322可以带动升降驱动部323运动，从而传动摆臂321、传动轴322和升降驱动部323实现同步联动。
在一些示例中，背盖31上可以设置轴座311。至少部分的轴座311可以设置于容纳凹部内。升降驱动组件32的传动轴322可转动地连接于轴座311。
在一些示例中，传动摆臂321可以包括限位孔。限位孔可以为非圆形孔。传动摆臂321的限位孔套设于传动轴322。传动轴322上与限位孔相配合的轴段的形状可以与限位孔的形状相匹配，从而传动摆臂321不可以相对传动轴322转动，传动摆臂321摆动时可以同步带动传动轴322转动。示例性地，传动摆臂321的限位孔的横截面可以包括圆弧段和直线段。例如，圆弧段和直线段的数量均为一个。直线段连接圆弧段的两个端点。或者，圆弧段和直线段的数量均为两个。圆弧段和直线段交替设置。一个直线段连接两个圆弧段的两个端点。
转轴装置30还包括升降板33。升降板33对应背盖31设置。升降板33可以设置于背盖31面向柔性显示屏50的一侧。升降驱动组件32的升降驱动部323可以与升降板33相连。升降驱动部323可以向升降板33传递作用力。升降驱动组件32的传动轴322转动时，传动轴322可以带动升降驱动部323运动，而升降驱动部323可以驱动升降板33远离或靠近背盖31升降移动。升降板33可以在升起位置和下降位置之间切换。升降板33远离背盖31移动为升起过程，而升降板33靠近背盖31移动为下降过程。
转轴装置30还包括屏幕支撑组件34。传动摆臂321可滑动连接于屏幕支撑组件34。屏幕支撑组件34可以为柔性显示屏50提供支撑。柔性显示屏50处于展开状态时，屏幕支撑组件34可以在柔性显示屏50的下方为柔性显示屏50提供支撑，降低柔性显示屏50发生下凹变形的可能性，提高柔性显示屏50的平整度。柔性显示屏50处于折叠状态时，屏幕支撑组件34可以为柔性显示屏50提供支撑，以引导柔性显示屏50朝预期的弯折形态弯折，例如，使得柔性显示屏50易于弯折成水滴形，降低柔性显示屏50出现弯折半径较小而导致柔性显示屏50发生断裂的可能性。在一些示例中，屏幕支撑组件34可以为柔性显示屏50上对应第三显示区域53的部分提供支撑。
屏幕支撑组件34可以通过传动摆臂321带动传动轴322相对背盖31转动，而屏幕支撑组件34和传动摆臂321均可以在展开位置和折叠位置之间切换。屏幕支撑组件34相对背盖31转动时，屏幕支撑组件34带动传动摆臂321相对背盖31转动，同时传动摆臂321相对屏幕支撑组件34滑动，从而传动摆臂321不会对屏幕支撑组件34形成运动约束。在一些示例中，框体40可以与屏幕支撑组件34相连。在一些示例中，框体40包括中框。框体40可以通过中框与屏幕支撑组件34相连。
屏幕支撑组件34在展开位置和折叠位置之间切换时，屏幕支撑组件34带动传动摆臂321相对背盖31转动，同时传动摆臂321、传动轴322和升降驱动部323联动，以通过升降驱动部323驱动升降板33远离或靠近背盖31升降移动，使得升降板33可以在升起位置和下降位置之间切换。屏幕支撑组件34在展开位置时，柔性显示屏 50处于展开状态，而升降板33处于升起位置，从而升降板33可以为处于展开状态的柔性显示屏50提供支撑。屏幕支撑组件34在折叠位置时，柔性显示屏50处于折叠状态，而升降板33处于下降位置，从而升降板33可以避让处于折叠状态的柔性显示屏50，降低转轴装置30挤压折叠状态的柔性显示屏50而导致柔性显示屏50发生损坏的可能性。
转轴装置30还包括屏幕支撑门板35。沿传动轴322的轴向X，升降板33的至少一侧设置有屏幕支撑门板35。屏幕支撑门板35可转动连接于屏幕支撑组件34，并且屏幕支撑门板35可滑动连接于背盖31。
在柔性显示屏50进行折叠时，屏幕支撑门板35可以为柔性显示屏50提供支撑，从而可以引导柔性显示屏50朝预期的弯折形态弯折，例如，使得柔性显示屏50易于弯折成水滴形。屏幕支撑门板35相对背盖31滑动，并在柔性显示屏50的下方形成避让空间，以避让柔性显示屏50。
屏幕支撑组件34相对背盖31转动时，屏幕支撑组件34可以带动屏幕支撑门板35相对屏幕支撑组件34转动，同时屏幕支撑门板35相对背盖31同步滑动，从而屏幕支撑门板35不会对屏幕支撑组件34形成运动约束。
屏幕支撑组件34在展开位置和折叠位置之间切换时，屏幕支撑门板35与屏幕支撑组件34同步展开或折叠。
本申请实施例的转轴装置30包括背盖31、升降驱动组件32、升降板33、屏幕支撑组件34以及屏幕支撑门板35。其中，屏幕支撑组件34、升降驱动组件32、升降板33以及屏幕支撑门板35可以实现联动。在屏幕支撑组件34处于展开位置时，升降板33可以处于升起位置，从而升降板33可以为设置于转轴装置30上方的柔性显示屏50提供有效支撑，有利于改善处于展开状态的柔性显示屏50的平整度，提升柔性显示屏50的使用体验。
另外，升降板33和屏幕支撑门板35沿传动轴322的轴向X布置的方式，可以使得升降板33不需要设置较多的避让空间避让屏幕支撑门板35，有利于减少升降板33上设置的孔洞数量，提高升降板33自身的机械强度，提升升降板33对柔性显示屏50的支撑稳定性。
在一些可实现的方式中，图8示意性地显示了本申请的转轴装置30的结构。参见图8所示，升降板33的数量可以为两个以上。沿传动轴322的轴向X，升降板33与屏幕支撑门板35交替设置。因此，每个升降板33和屏幕支撑门板35位置不存在干涉，使得每个升降板33上均不需要设置用于避让屏幕支撑门板35的避让空间，有利于减少每个升降板33上设置的孔洞数量。
在一些示例中，屏幕支撑门板35的数量可以为两组以上。每组屏幕支撑门板35可以包括两个屏幕支撑门板35。示例性地，升降板33的数量可以为两个，而屏幕支撑门板35的数量可以为三组。示例性地，沿传动轴322的轴向X，三组屏幕支撑门板35间隔设置。背盖31的两端分别对应设置有一组屏幕支撑门板35。两组屏幕支撑门板35之间设置一个升降板33，也即沿传动轴322的轴向X，升降板33的两侧均设置有屏幕支撑门板35。
屏幕支撑组件34的数量可以为两个。两个屏幕支撑组件34分别连接于背盖31。 每组屏幕支撑门板35中的两个屏幕支撑门板35可以分别连接于对应的屏幕支撑组件34。
在一些可实现的方式中，沿传动轴322的轴向X，升降板33的两端分别对应设置有升降驱动部323。在传动轴322相对背盖31发生转动时，升降板33的两端对应设置的升降驱动部323可以同步向升降板33施加升降驱动力，从而可以使得升降板33整体受力较为均衡，有利于提高升降运动过程的稳定性。
在一些可实现的方式中，图9为图8中沿P1-P1方向的剖视结构。图10示意性地显示了本申请的转轴装置30处于折叠状态的局部剖视结构。参见图9和图10所示，升降驱动部323包括拨动部3231。拨动部3231偏置于传动轴322的轴线。传动轴322相对背盖31转动时，拨动部3231的运动轨迹可以为绕传动轴322的轴线的弧形轨迹。升降板33可以包括滑槽331。拨动部3231与升降板33的滑槽331相配合。传动轴322可以带动拨动部3231相对升降板33的滑槽331转动并且同时相对升降板33的滑槽331滑动，以驱动升降板33升降移动。拨动部3231绕传动轴322的轴线运动时，升降板33的滑槽331可以避让拨动部3231，从而升降板33与拨动部3231之间不会发生位置干涉。
在一些示例中，滑槽331可以贯穿升降板33的侧面。滑槽331具有位于升降板33的侧面的开口。升降驱动部323的拨动部3231可以通过开口装入滑槽331。
在一些示例中，沿背盖31的宽度方向Y，升降板33的两侧分别设置有传动轴322和升降驱动部323。背盖31的宽度方向Y与传动轴322的轴向X相垂直。升降板33的一端对应设置两个升降驱动部323。两个升降驱动部323可以同时对升降板33的端部施加作用力。
在一些示例中，升降驱动部323还包括连接块(图中未示出)。连接块连接拨动部3231和传动轴322。拨动部3231设置于连接块远离传动轴322的区域上，以使拨动部3231偏置于传动轴322的一侧。示例性地，拨动部3231可以为柱状结构。拨动部3231的轴线可以与传动轴322的轴线相互平行。
在一些示例中，沿升降板33的厚度方向Z，滑槽331上相对的两个壁面均与拨动部3231保持接触，从而升降板33和拨动部3231之间可以不具有游隙。因此，拨动部3231拨动升降板33时，拨动部3231和升降板33可以保持同步运动，降低拨动部3231和升降板33之间存在游隙而导致升降板33与拨动部3231运动不同步或者升降板33运动位置发生误差的可能性。另外，拨动部3231和升降板33之间不易发生冲击，降低产生异响的可能性。需要说明的是，升降板33的厚度方向Z可以指的是升降板33和背盖31的层叠方向。
在一些可实现的方式中，图11为图8中沿P2-P2方向的剖视结构。图12示意性地显示了本申请的转轴装置30处于折叠状态的局部剖视结构。参见图11和图12所示，传动轴322包括第一转轴3221。第一转轴3221可转动连接于背盖31。第一转轴3221的至少一端设置有升降驱动部323。传动摆臂321包括第一摆臂3211。第一摆臂3211与第一转轴3221相连。屏幕支撑组件34包括屏幕压板341和第一轨道342。第一轨道342连接于屏幕压板341。第一轨道342可以设置于屏幕压板341的下方。第一摆臂3211可滑动连接于第一轨道342。屏幕支撑组件34在展开位置和折叠位置之间切 换时，第一摆臂3211相对第一轨道342滑动，而第一摆臂3211带动第一转轴3221转动。
柔性显示屏50进行折叠时，屏幕压板341可以为柔性显示屏50提供支撑，以引导柔性显示屏50朝预期的弯折形态弯折，例如，使得柔性显示屏50易于弯折成水滴形，降低柔性显示屏50出现弯折半径较小而导致柔性显示屏50发生断裂的可能性。
在一些示例中，屏幕压板341和第一轨道342可以为一体成型结构，提高两者连接强度。
在一些示例中，屏幕支撑组件34的数量可以为两个。沿背盖31的宽度方向Y，升降板33设置于两个屏幕压板341之间。示例性地，沿升降板33的厚度方向Z，升降板33的正投影可以与屏幕压板341的正投影不重叠。
在一些示例中，第一轨道342可以为弧形。屏幕支撑组件34在展开位置时，第一摆臂3211与第一轨道342的连接点位于第一轨道342远离升降板33的一端。屏幕支撑组件34在折叠位置时，第一摆臂3211与第一轨道342的连接点位于第一轨道342靠近升降板33的一端。
示例性地，第一轨道342可以包括弧形孔。第一摆臂3211包括第一滑柱3211a。第一滑柱3211a与弧形孔滑动配合。屏幕支撑组件34在展开位置时，第一滑柱3211a位于弧形孔远离升降板33的一端。屏幕支撑组件34在折叠位置时，第一滑柱3211a位于弧形孔靠近升降板33的一端。
在一些示例中，沿第一转轴3221的轴向，第一摆臂3211与第一转轴3221连接区域位于升降驱动部323的一侧。传动轴322的轴向X可以与第一转轴3221的轴向相同。
在一些示例中，第一转轴3221的一端设置有升降驱动部323。示例性地，第一转轴3221靠近背盖31的端部的一端设置有升降驱动部323。
在一些示例中，升降板33的数量可以为两个以上。沿第一转轴3221的轴向，两个以上的升降板33可以间隔设置。每个升降板33各自可以对应设置有第一转轴3221。各个升降板33对应设置的第一转轴3221各自可以独立设置。示例性地，每个升降板33各自对应设置的第一转轴3221的数量可以是一组或两组以上，本申请对此不作具体限定。一组第一转轴3221可以包括两个第一转轴3221。沿背盖31的宽度方向Y，一组第一转轴3221中的两个第一转轴3221可以分别设置于升降板33的两侧。两个第一转轴3221分别连接有第一摆臂3211。
在一些可实现的方式中，图13为图6中S处的放大示意图。图14为图8中沿P3-P3方向的剖视结构。图15示意性地显示了本申请的转轴装置30处于折叠状态的局部剖视结构。参见图13至图15所示，传动轴322还包括第二转轴3222。第二转轴3222的至少一端设置有升降驱动部323。传动摆臂321包括第二摆臂3212。第二摆臂3212与第二转轴3222相连。屏幕支撑组件34包括转接件343、屏幕压板341和第二轨道344。转接件343与屏幕压板341相连。第二轨道344设置于转接件343。第二摆臂3212可滑动连接于第二轨道344。屏幕支撑组件34在展开位置和折叠位置之间切换时，第二摆臂3212相对第二轨道344滑动，而第二摆臂3212带动第二转轴3222转动。
在一些示例中，转轴装置30可以通过转接件343与框体40相连。示例性地，框 体40包括中框。转轴装置30可以通过转接件343与中框相连。至少部分的转接件343可以位于屏幕压板341的下方。
在一些示例中，转接件343与第二轨道344可以为一体成型结构，有利于提高两者的连接强度。
在一些示例中，图16为图8中沿P4-P4方向的剖视结构。参见图14至图16所示，第二轨道344可以为条形。屏幕支撑组件34在展开位置时，第二摆臂3212与第二轨道344的连接点位于第二轨道344远离升降板33的一端。屏幕支撑组件34在折叠位置时，第二摆臂3212与第二轨道344的连接点位于第二轨道344靠近升降板33的一端。
示例性地，第二轨道344可以包括条形孔。例如，条形孔可以是腰型孔。第二摆臂3212包括第二滑柱3212a。第二滑柱3212a与条形孔滑动配合。屏幕支撑组件34在展开位置时，第二滑柱3212a位于条形孔远离升降板33的一端。屏幕支撑组件34在折叠位置时，第二滑柱3212a位于条形孔靠近升降板33的一端。
在一些示例中，沿第二转轴3222的轴向，第二摆臂3212与第二转轴3222连接区域位于升降驱动部323的一侧。传动轴322的轴向X可以与第二转轴3222的轴向相同。
在一些示例中，第二转轴3222的一端设置有升降驱动部323。
在一些示例中，升降板33的数量可以为两个以上。沿第二转轴3222的轴向，两个以上的升降板33可以间隔设置。每个升降板33可以各自对应设置有第二转轴3222。各个升降板33对应设置的第二转轴3222各自可以独立设置。示例性地，每个升降板33各自对应设置的第二转轴3222的数量可以是一组或两组以上，本申请对此不作具体限定。一组第二转轴3222可以包括两个第二转轴3222。沿背盖31的宽度方向Y，一组第二转轴3222中的两个第二转轴3222可以分别设置于升降板33的两侧。两个第二转轴3222分别连接有第二摆臂3212。
在一些示例中，参见图13和图16所示，升降板33的相对两侧分别设置第二转轴3222和第二摆臂3212。第二摆臂3212包括套接部3213。套接部3213套设于第二转轴3222。套接部3213不可以相对第二转轴3222转动。套接部3213包括螺旋孔3213a。转轴装置30还包括传动滑块36。沿背盖31的宽度方向Y，传动滑块36设置于两个第二转轴3222之间。传动滑块36包括导向部361。导向部361和螺旋孔3213a可滑动配合。套接部3213带动第二转轴3222同步转动时，套接部3213驱动传动滑块36沿第二转轴3222的轴向同步移动。升降板33一侧的第二转轴3222受力相对背盖31转动时，会通过套接部3213和传动滑块36将动力传递至另一侧的第二转轴3222，从而有效保证升降板33的相对两侧的第二转轴3222可以通过传动滑块36实现同步转动，提高第二转轴3222的转动精度。
示例性地，一个第二摆臂3212的套接部3213上设置有两个螺旋孔3213a。沿第二转轴3222的轴向，两个螺旋孔3213a间隔设置。
示例性地，传动滑块36的导向部361可以是球形，有利于提高导向部361和螺旋孔3213a的滑动过程稳定性。
在一些示例中，套接部3213包括容纳部(图中未示出)以及面向容纳部的推顶凸 轮3213b。推顶凸轮3213b套设于第二转轴3222。第二转轴3222穿设于推顶凸轮3213b的中心孔。转轴装置30还包括阻尼部件37。至少部分的阻尼部件37位于容纳部内。阻尼部件37包括弹性件371和导向凸轮372。弹性件371和导向凸轮372均套设于第二转轴3222。沿第二转轴3222的轴向，导向凸轮372设置于弹性件371和推顶凸轮3213b之间。推顶凸轮3213b与导向凸轮372相互啮合。推顶凸轮3213b与导向凸轮372各自设置有啮合凹槽和啮合凸部，其中一者的啮合凸部插入另一者的啮合凹槽，以实现两者啮合。导向凸轮372背向弹性件371的一端可以设置啮合凹槽和啮合凸部。分别套设于两个第二转轴3222上并且位于弹性件371同侧的两个导向凸轮372相互连接，从而推顶凸轮3213b和第二转轴3222同步转动时，推顶凸轮3213b相对导向凸轮372转动，而导向凸轮372不发生转动。示例性地，两个导向凸轮372可以为一体成型结构，有利于提高连接强度。
推顶凸轮3213b和第二转轴3222同步转动时，推顶凸轮3213b相对导向凸轮372发生转动，从而推顶凸轮3213b的啮合凸部从导向凸轮372的啮合凹槽中退出时，可以推动导向凸轮372沿第二转轴3222的轴向移动，使得导向凸轮372压缩弹性件371。推顶凸轮3213b的啮合凸部进入导向凸轮372的下一个啮合凹槽时，弹性件371释放弹性势能，可以推动导向凸轮372沿第二转轴3222的轴向移动，使得导向凸轮372和推顶凸轮3213b重新啮合。转轴装置30通过推顶凸轮3213b、导向凸轮372和弹性件371对第二转轴3222的转动过程形成阻力，从而使得第二摆臂3212和第二转轴3222可以在预定位置实现悬停，并且有利于保证第二摆臂3212和第二转轴3222转动过程平稳。
在一些示例中，弹性件371可以是螺旋弹簧。
在一些示例中，沿第二转轴3222的轴向，弹性件371的相对两侧均设置有导向凸轮372。相应地，套接部3213包括两个推顶凸轮3213b。两个推顶凸轮3213b可以同步推动两个导向凸轮372沿第二转轴3222的轴向移动，使得两个导向凸轮372同时压缩或释放弹性件371，从而有利于保证套接部3213和阻尼部件37动力传递的稳定性和均衡性，有利于进一步提高第二摆臂3212和第二转轴3222转动过程的平稳性。
在一些示例中，图17示意性地显示了本申请的传动滑块36的结构。图18和图19示意性地显示了本申请的升降板33的结构。参见图16和图17所示，升降板33设置于传动滑块36背向背盖31的一侧。传动滑块36包括两个侧壁362。两个侧壁362之间形成面向升降板33的避让槽363。参见图18和图19所示，升降板33具有避让部332。传动滑块36的侧壁362对应升降板33的避让部332设置。因此，传动滑块36和升降板33不易发生接触，降低两者发生碰撞、刮擦的可能性。
示例性地，升降板33的边缘设置有缺口。该缺口形成避让部332。
在一些可实现的方式中，每个升降板33可以对应设置有第一转轴3221和第一摆臂3211。或者，每个升降板33可以对应设置有第二转轴3222和第二摆臂3212。
在一些可实现的方式中，每个升降板33可以对应设置有第一转轴3221和第二转轴3222。第一转轴3221连接有第一摆臂3211。第二转轴3222连接有第二摆臂3212。第二摆臂3212包括套接部3213。套接部3213包括容纳部以及面向容纳部的推顶凸轮3213b。转轴装置30还包括阻尼部件37。阻尼部件37包括弹性件371和导向凸轮372。 弹性件371和导向凸轮372均套设于第二转轴3222。
对于一个升降板33，屏幕支撑组件34在展开位置和折叠位置之间切换时，屏幕支撑组件34带动第一摆臂3211和第二摆臂3212相对背盖31转动。第一摆臂3211和第二摆臂3212分别带动第一转轴3221和第二转轴3222相对背盖31转动。第一转轴3221和第二转轴3222各自设置的升降驱动部323可以同步驱动升降板33升降移动。
在一些示例中，沿第一转轴3221的轴向，第一转轴3221和第二转轴3222间隔设置。第一转轴3221的轴向可以与第二转轴3222的轴向相同。
在一些示例中，第一转轴3221远离第二转轴3222的一端设置有升降驱动部323，而第二转轴3222远离第一转轴3221的一端设置有升降驱动部323。因此，第一转轴3221和第二转轴3222上设置的升降驱动部323可以分别对升降板33的相对两端同步施加驱动作用力，使得升降板33整体受力较为均衡，有利于提高升降板33运动过程平稳性。
在一些示例中，升降板33的数量可以为两个。其中，一个升降板33对应设置有一组第一转轴3221和一组第二转轴3222。沿第一转轴3221的轴向，一组第一转轴3221和一组第二转轴3222间隔设置。其中，一组第一转轴3221可以靠近屏幕支撑门板35设置。一组第一转轴3221包括两个第一转轴3221。一个第一转轴3221上连接一个第一摆臂3211。一组第二转轴3222包括两个第二转轴3222。一个第二转轴3222上连接一个第二摆臂3212和一个阻尼部件37。两个第二转轴3222之间设置有一个传动滑块36。
另一个升降板33对应设置有两组第一转轴3221和一组第二转轴3222。沿第一转轴3221的轴向，两组第一转轴3221之间设置有一组第二转轴3222。一组第一转轴3221包括两个第一转轴3221。一个第一转轴3221上连接一个第一摆臂3211。一组第二转轴3222包括两个第二转轴3222。一个第二转轴3222上连接一个第二摆臂3212和一个阻尼部件37。两个第二转轴3222之间设置有一个传动滑块36。
在一些示例中，参见图18和图19所示，升降板33包括位于两个第一摆臂3211之间的收窄段333以及两个第二摆臂3212之间的收窄段333。在升降板33升降过程中，升降板33的收窄段333可以有效避让第一摆臂3211或第二摆臂3212，使得升降板33不会与第一摆臂3211或第二摆臂3212发生位置干涉。
在一些可实现的方式中，转轴装置30包括导向凸部(图中未示出)和导向凹部(图中未示出)。升降板33和背盖31中的一者上设置导向凸部，另一者上设置导向凹部。沿升降板33的升降方向，导向凸部与导向凹部可滑动连接。升降板33升降过程中，导向凸部可以相对导向凹部滑动，从而导向凸部和导向凹部滑动配合的方式，可以为升降板33升降过程提供导向，降低升降板33发生倾斜的可能性，有利于提高升降板33升降过程的位置稳定性。
在一些示例中，升降板33上设置导向凸部，而背盖31上设置导向凹部。示例性地，导向凸部可以是导向柱。
在一些可实现的方式中，参见图18和图19所示，升降板33背向背盖31的表面具有凹槽334。凹槽334的底壁可以呈弧形。在柔性显示屏50处于折叠状态时，升降板33与柔性显示屏50的弯折区对应，而升降板33上的凹槽334可以有效避让柔性显 示屏50，降低升降板33对柔性显示屏50造成挤压而导致柔性显示屏50发生损坏的可能性。升降板33上的凹槽334的形状可以与柔性显示屏50的弯折区弯折后的形状相匹配。
在一些可实现的方式中，图20为图8中沿P5-P5方向的剖视结构。图21示意性地显示了本申请的转轴装置30处于折叠状态的局部剖视结构。参见图20和图21所示，屏幕支撑组件34包括转接件343和屏幕压板341。转接件343与屏幕压板341相连。屏幕支撑门板35可转动连接于转接件343。屏幕支撑门板35上位于屏幕压板341的下方的部分用于与转接件343可转动连接。在转接件343与屏幕压板341相对背盖31转动时，转接件343可以带动屏幕支撑门板35相对背盖31转动，并且屏幕支撑门板35相对转接件343同步发生转动。
在一些示例中，屏幕支撑门板35上位于屏幕压板341的下方的部分可以通过转轴与转接件343可转动连接。
在一些示例中，图22为图5中M处放大示意图。参见图22所示，屏幕压板341包括避让缺口3411。屏幕压板341面向背盖31的边缘区域上可以设置避让缺口3411。屏幕支撑门板35包括屏幕支撑块351。屏幕支撑块351对应避让缺口3411设置。屏幕支撑组件34在展开位置和折叠位置之间切换时，屏幕支撑门板35相对屏幕支撑组件34转动，并且屏幕支撑门板35相对背盖31滑动，以带动屏幕支撑块351在避让缺口3411内移动，从而可以调整屏幕支撑块351的屏幕支撑面和屏幕压板341的屏幕支撑面之间的相对位置。
屏幕支撑组件34在展开位置时，屏幕支撑块351的屏幕支撑面位于避让缺口3411内，从而屏幕支撑块351的屏幕支撑面位置低于屏幕支撑门板35的屏幕支撑面。屏幕支撑块351的屏幕支撑面与柔性显示屏50之间可以具有间隙。
屏幕支撑组件34在折叠位置时，屏幕支撑块351的屏幕支撑面可以与屏幕支撑门板35的屏幕支撑面平齐，从而共同为柔性显示屏50的弯折区提供支撑。
在一些示例中，两个屏幕压板341连接于背盖31。沿传动轴322的轴向X，位于升降板33同侧的两个屏幕支撑门板35连接于背盖31。沿背盖31的宽度方向Y，两个屏幕压板341的避让缺口3411错位设置，而两个屏幕支撑门板35的屏幕支撑块351错位设置。
在一些示例中，参见图21和图22所示，屏幕支撑门板35包括转动连接部352和弧形滑动部353。转动连接部352可转动连接于屏幕支撑组件34。示例性地，转动连接部352可以通过转轴连接于屏幕支撑组件34。示例性地，屏幕支撑组件34包括转接件343和屏幕压板341。转动连接部352位于屏幕压板341的下方。转动连接部352可转动连接于转接件343。背盖31包括弧形滑道312。弧形滑动部353与弧形滑道312可滑动连接。弧形滑道312为圆弧形，相应地，弧形滑动部353为圆弧形。弧形滑道312的轴线与弧形滑动部353的轴线同轴设置。屏幕支撑组件34带动屏幕支撑门板35相对背盖31转动时，屏幕支撑门板35的转动连接部352相对屏幕支撑组件34转动，而弧形滑动部353在弧形滑道312中同步滑动。
屏幕支撑组件34从展开位置向折叠位置切换过程中，屏幕支撑门板35的弧形滑动部353相互远离，使得屏幕支撑门板35上设置弧形滑动部353的部分从升降板33 的一端移开，以在升降板33的一端形成避让空间，避让柔性显示屏50的弯折区。
屏幕支撑组件34从折叠位置向展开位置切换过程中，屏幕支撑门板35的弧形滑动部353相互靠近，使得屏幕支撑门板35上的弧形滑动部353移动至升降板33的一端。
在一些可实现的方式中，屏幕支撑门板35还包括插接孔354。背盖31还包括插接块313。插接块313穿设于插接孔354。屏幕支撑组件34在展开位置和折叠位置之间切换时，屏幕支撑门板35相对屏幕支撑组件34转动，并且屏幕支撑门板35相对背盖31滑动，而插接块313相对插接孔354移动。
屏幕支撑组件34从展开位置向折叠位置切换过程中，屏幕支撑门板35的弧形滑动部353相互远离，而插接块313可以移动退出插接孔354。屏幕支撑组件34从折叠位置向展开位置切换过程中，屏幕支撑门板35的弧形滑动部353相互靠近，而插接块313可以移动进入插接孔354。
在一些示例中，插接块313为圆弧形结构。
在一些示例中，一个屏幕支撑门板35可以包括两个插接孔354。沿传动轴322的轴向X，两个插接孔354间隔设置。相应地，背盖31上对应一个屏幕支撑门板35设置两个插接块313。
在本申请实施例的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应作广义理解，例如，可以是固定连接，也可以是通过中间媒介间接相连，可以是两个元件内部的连通或者两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
在本申请实施例不是指示或者暗示所指的装置或者元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施例的限制。在本申请实施例的描述中，“多个”的含义是两个或两个以上，除非是另有精确具体地规定。
本申请实施例的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
本文中的术语“多个”是指两个或两个以上。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系；在公式中，字符“/”，表示前后关联对象是一种“相除”的关系。
可以理解的是，在本申请的实施例中涉及的各种数字编号仅为描述方便进行的区分，并不用来限制本申请的实施例的范围。
可以理解的是，在本申请的实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请的实施例的实施过程构成任何限定。

Claims (18)

  1. 一种转轴装置，用于折叠屏设备，其特征在于，至少包括：
    背盖；
    升降驱动组件，包括传动摆臂、传动轴和升降驱动部，所述传动摆臂与所述传动轴相连，所述传动轴可转动连接于所述背盖，所述升降驱动部与所述传动轴相连；
    升降板，对应所述背盖设置，所述升降驱动部与所述升降板相连；
    屏幕支撑组件，所述传动摆臂可滑动连接于所述屏幕支撑组件；
    屏幕支撑门板，沿所述传动轴的轴向，所述升降板的至少一侧设置有所述屏幕支撑门板，所述屏幕支撑门板可转动连接于所述屏幕支撑组件，并且所述屏幕支撑门板可滑动连接于所述背盖；
    其中，所述屏幕支撑组件通过所述传动摆臂带动所述传动轴相对所述背盖转动，以在展开位置和折叠位置之间切换，所述传动轴带动所述升降驱动部运动，所述升降驱动部驱动所述升降板远离或靠近所述背盖升降移动，以在升起位置和下降位置之间切换，所述屏幕支撑组件带动所述屏幕支撑门板相对所述屏幕支撑组件转动并且同步相对所述背盖滑动。
  2. 根据权利要求1所述的转轴装置，其特征在于，所述升降板的数量为两个以上，沿所述传动轴的轴向，所述升降板与所述屏幕支撑门板交替设置。
  3. 根据权利要求1或2所述的转轴装置，其特征在于，沿所述传动轴的轴向，所述升降板的两端分别对应设置有所述升降驱动部。
  4. 根据权利要求1至3任一项所述的转轴装置，其特征在于，所述升降驱动部包括拨动部，所述拨动部偏置于所述传动轴的轴线，所述升降板包括滑槽，所述拨动部与所述滑槽相配合，所述传动轴带动所述拨动部相对所述滑槽转动并且相对所述滑槽滑动，以驱动所述升降板升降移动。
  5. 根据权利要求1至4任一项所述的转轴装置，其特征在于，所述传动轴包括第一转轴，所述第一转轴的至少一端设置有所述升降驱动部，所述传动摆臂包括第一摆臂，所述第一摆臂与所述第一转轴相连，所述屏幕支撑组件包括屏幕压板和第一轨道，所述第一轨道连接于所述屏幕压板，所述第一摆臂可滑动连接于所述第一轨道，所述屏幕支撑组件在所述展开位置和所述折叠位置之间切换时，所述第一摆臂相对所述第一轨道滑动，所述第一摆臂带动所述第一转轴转动。
  6. 根据权利要求1至5任一项所述的转轴装置，其特征在于，所述传动轴还包括第二转轴，所述第二转轴的至少一端设置有所述升降驱动部，所述传动摆臂包括第二摆臂，所述第二摆臂与所述第二转轴相连，所述屏幕支撑组件包括转接件、屏幕压板和第二轨道，所述转接件与所述屏幕压板相连，所述第二轨道设置于所述转接件，所述第二摆臂可滑动连接于所述第二轨道，所述屏幕支撑组件在所述展开位置和所述折叠位置之间切换时，所述第二摆臂相对所述第二轨道滑动，所述第二摆臂带动所述第二转轴转动。
  7. 根据权利要求6所述的转轴装置，其特征在于，所述屏幕支撑门板可转动连接于所述转接件。
  8. 根据权利要求6或7所述的转轴装置，其特征在于，所述屏幕压板包括避让缺口，所述屏幕支撑门板包括屏幕支撑块，所述屏幕支撑块对应所述避让缺口设置，所述屏幕支撑组件在所述展开位置和所述折叠位置之间切换时，所述屏幕支撑门板相对所述屏幕支撑组件转动，并且所述屏幕支撑门板相对所述背盖滑动，以带动所述屏幕支撑块在所述避让缺口内移动。
  9. 根据权利要求8所述的转轴装置，其特征在于，两个所述屏幕压板连接于所述背盖，位于所述升降板同侧的两个所述屏幕支撑门板连接于所述背盖，沿垂直于所述传动轴的轴向的方向，两个所述屏幕压板的所述避让缺口错位设置，两个所述屏幕支撑门板的所述屏幕支撑块错位设置。
  10. 根据权利要求6至9任一项所述的转轴装置，其特征在于，所述升降板的相对两侧分别设置所述第二转轴和所述第二摆臂，所述第二摆臂包括套接部，所述套接部套设于所述第二转轴，所述套接部包括螺旋孔，所述转轴装置还包括传动滑块，所述传动滑块设置于两个所述第二转轴之间，所述传动滑块包括导向部，所述导向部和所述螺旋孔可滑动配合，所述套接部带动所述第二转轴同步转动时，所述套接部驱动所述传动滑块沿所述第二转轴的轴向同步移动。
  11. 根据权利要求10所述的转轴装置，其特征在于，所述套接部包括容纳部以及面向所述容纳部的推顶凸轮，所述转轴装置还包括阻尼部件，至少部分的所述阻尼部件位于所述容纳部内，所述阻尼部件包括弹性件和导向凸轮，所述弹性件和所述导向凸轮均套设于所述第二转轴，所述导向凸轮设置于所述弹性件和所述推顶凸轮之间，所述推顶凸轮与所述导向凸轮相互啮合，套设于两个所述第二转轴上并且位于所述弹性件同侧的两个所述导向凸轮相互连接。
  12. 根据权利要求11所述的转轴装置，其特征在于，沿所述第二转轴的轴向，所述弹性件的相对两侧均设置有所述导向凸轮。
  13. 根据权利要求10至12任一项所述的转轴装置，其特征在于，所述升降板设置于所述传动滑块背向所述背盖的一侧，所述传动滑块包括两个侧壁，两个所述侧壁之间形成面向所述升降板的避让槽，所述升降板具有避让部，所述侧壁对应所述避让部设置。
  14. 根据权利要求1至13任一项所述的转轴装置，其特征在于，所述转轴装置包括导向凸部和导向凹部，所述升降板和所述背盖中的一者上设置所述导向凸部，另一者上设置所述导向凹部，沿所述升降板的升降方向，所述导向凸部与所述导向凹部可滑动连接。
  15. 根据权利要求1至14任一项所述的转轴装置，其特征在于，所述升降板背向所述背盖的表面具有凹槽，所述凹槽的底壁呈弧形。
  16. 根据权利要求1至15任一项所述的转轴装置，其特征在于，所述屏幕支撑门板包括转动连接部和弧形滑动部，所述转动连接部可转动连接于所述屏幕支撑组件，所述背盖包括弧形滑道，所述弧形滑动部与所述弧形滑道可滑动连接。
  17. 根据权利要求1至16任一项所述的转轴装置，其特征在于，所述屏幕支撑门板还包括插接孔，所述背盖还包括插接块，所述插接块穿设于所述插接孔，所述屏幕支撑组件在所述展开位置和所述折叠位置之间切换时，所述屏幕支撑门板相对所述屏幕支撑组件转动，并且所述屏幕支撑门板相对所述背盖滑动，所述插接块相对所述插接孔移动。
  18. 一种折叠屏设备，其特征在于，包括：
    壳体，包括框体以及如权利要求1至17任一项所述的转轴装置，所述框体连接于所述屏幕支撑组件；
    柔性显示屏，与所述框体相连。
PCT/CN2023/087756 2022-08-22 2023-04-12 转轴装置以及折叠屏设备 WO2024040984A1 (zh)

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