WO2023179532A1 - 折叠装置和电子设备 - Google Patents

折叠装置和电子设备 Download PDF

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Publication number
WO2023179532A1
WO2023179532A1 PCT/CN2023/082467 CN2023082467W WO2023179532A1 WO 2023179532 A1 WO2023179532 A1 WO 2023179532A1 CN 2023082467 W CN2023082467 W CN 2023082467W WO 2023179532 A1 WO2023179532 A1 WO 2023179532A1
Authority
WO
WIPO (PCT)
Prior art keywords
door panel
mounting plate
axis
folding device
rotating arm
Prior art date
Application number
PCT/CN2023/082467
Other languages
English (en)
French (fr)
Inventor
牛林辉
姜文杰
徐正一
席聪
朱德珑
潘永伟
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2023179532A1 publication Critical patent/WO2023179532A1/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
    • F16C11/045—Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin
    • 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
    • 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
    • F16C11/10—Arrangements for locking
    • 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
    • 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 present application relates to electronic devices with flexible display screens, and in particular, to a folding device and electronic devices.
  • the outer folding solution of the folding device is defined as: the two bodies are connected through a main shaft rotation, so that the two bodies can be folded or unfolded relative to each other.
  • the flexible display screen is located on the outer surface of the two relatively folded bodies.
  • the rear shells of the two bodies are arranged face to face or in contact with each other.
  • a shielding door panel needs to be provided.
  • the shielding door panel is between the rear shells of the two main bodies and shields the main axis of the folding device.
  • the related structural design of the folding device's shielding door panel how to save space for electronic equipment while meeting its functions is the direction of research and development in the industry.
  • Embodiments of the present application provide a folding device and electronic equipment.
  • embodiments of the present application provide a folding device, including a first mounting plate, a second mounting plate, a main shaft, a first door panel, a second door panel, a first rotating arm and a second rotating arm, and the main shaft is connected to the first rotating arm and the second rotating arm.
  • the first mounting plate is rotationally connected and constitutes a first shaft
  • the main shaft is rotationally connected with the second mounting plate and constitutes a second shaft.
  • the rotational connection between the main shaft and the first mounting plate is The rotation center at is the first axis; the first door panel is slidingly connected to the first mounting plate, and the first rotating arm is rotationally connected to the main shaft and forms a third axis.
  • the first The rotation center of the rotation connection between the rotating arm and the main shaft is the third axis, the third axis and the first axis are not collinear, the first door panel and the first rotating arm are movably connected, It can be understood that the connection between the first door panel and the first rotating arm has a degree of freedom, so that when the first rotating arm rotates relative to the main shaft, the first door panel can be pushed relative to the first installation.
  • the second door panel is slidingly connected to the second mounting plate, and the second rotating arm is rotationally connected to the main shaft and forms a fourth axis.
  • the second rotating arm and the main shaft The rotation center of the rotation connection is the fourth axis, the fourth axis and the second axis are not collinear, and the second door panel and the second rotation arm are movably connected, which can be understood as the
  • the connection between a door panel and the first rotating arm has a degree of freedom, so that when the second rotating arm rotates relative to the main shaft, the second door panel can be pushed to slide relative to the second mounting plate;
  • the first door panel and the second door panel are butt-jointed and together form an appearance piece for shielding the main shaft; when the folding device is in the folded state, the first door panel and The second door panel is stacked between the first mounting plate and the second mounting plate.
  • the embodiment of the present application provides that by setting the positions of the first axis, the second axis, the third axis and the fourth axis, it is possible to realize that the first door panel and the second door panel of the folding device can be opened and closed smoothly, and at the same time, the width can also be adjusted. Small size in the direction and thin in the thickness direction. Specifically, the positions of the first axis and the second axis can determine the movement trajectories of the first mounting plate and the second mounting plate during the unfolding and folding processes.
  • the first axis and the second axis Controlling the inside of the first door panel and the second door panel can achieve a smaller size of the first rotating component. If the first axis and the second axis are controlled outside the first door panel and the second door panel (referring to this (the outer surface of the two door panels or the space on the side of the outer surface away from the inner surface), the size of the first rotating component in the width direction will be relatively large, occupying a larger space for electronic equipment.
  • the first axis and the third axis not collinear, and the second axis and the fourth axis not being collinear, it is possible to control the sliding connection structure of the two door panels and the two mounting plates in the width direction.
  • the miniaturized design of electronic equipment can be achieved.
  • the first door panel includes a first inner surface and a first outer surface that are oppositely arranged, the first inner surface faces the first rotating arm, and the third axis is located on the first rotating arm. An outer surface or the side of the first outer surface away from the first inner surface.
  • the fourth axis may also be located on one side of the outer surface of the second door panel.
  • the first rotating arm and the first door panel are rotationally connected.
  • the degree of freedom of the connection between the first door panel and the first rotating arm through the design of the degree of freedom of the connection between the first door panel and the first rotating arm, the relative position between the first door panel and the first mounting plate can be adjusted during the rotation of the first rotating arm relative to the main shaft.
  • the first door panel and the first rotating arm can also be movablely connected in other ways, such as a sliding connection, which can be slidingly connected through the cooperation of the chute and the slide block, as long as the chute block is limited to be in the chute.
  • the moving trajectory can realize the adjustment of the positions of the first door panel and the first rotating arm, and during the position adjustment process, the first rotating arm can generate a pushing force on the first door panel, so that the first door panel is relative to the first mounting plate.
  • the sliding speed increases.
  • the first rotating arm includes a first arc-shaped arm, and the first arc-shaped arm cooperates with the main shaft to realize a rotational connection between the first rotating arm and the main shaft,
  • the third axis is the arc center of the first arc-shaped arm.
  • the folding device further includes a first slider, the first door panel is slidably connected to the first mounting plate through the first slider, and the first door panel is slidably connected to the first mounting plate through the first slider.
  • the block is rotatably connected to the first rotating arm, and the first door panel and the first slide block are in a detachable connection relationship.
  • the first slider is provided as a connection structure between the first door panel, the first installation plate and the first rotating arm, and the first door panel can be easily replaced through a detachable connection design.
  • the folding device further includes a first fixing plate, the first fixing plate is fixedly connected to the slider, and the first door panel and the first fixing plate are detachable. connection relationship.
  • the area of the surface of the first fixed plate used to connect the first door panel is larger than the area of the surface of the first slider facing the first door panel.
  • a first fixing plate is provided between the first slider and the first door panel. board, which can ensure the stability and reliability of the first door panel connection.
  • the first fixed plate and the first door panel are connected through magnetic attraction.
  • the folding device When the folding device is in a flat state, there is a gap between the first door panel and the second door panel. Docking via magnetic attraction.
  • the folding device When the folding device is in the flat state, the first door panel and the second door panel are magnetically attracted to form a seamless splicing. This ensures that there is no gap at the connection between the first door panel and the second door panel in the flat state, improving electronic equipment. appearance integrity and customer experience.
  • the first slide block includes a sliding fitting part, a door panel fixing part and a rotating connection part.
  • the sliding fitting part is used to slide fitting with the first mounting plate.
  • the sliding fitting part is in the form of Flat shape.
  • the sliding fitting portion is parallel to the first door panel.
  • this application is not limited to absolute parallel.
  • This definition of parallel can be understood as basically parallel, allowing for situations that are not absolutely parallel due to factors such as assembly tolerances and structural flatness. These situations will lead to The sliding fitting part and the first door panel are not absolutely parallel, but this application also defines this situation as being parallel.
  • This solution makes the sliding fit between the first slide block and the first mounting plate simple through the flat design of the sliding fitting part, which not only facilitates processing and assembly, but also ensures a stable and reliable motion track for the first mounting plate and the first door panel. trace.
  • the folding device when the folding device is in the folded state, the first door panel and the second door panel are stacked, and at least part of the back shell of the electronic device is stored in the first door panel and the second door panel. Describe the space between the second door panels. That is, the space between the first door panel and the second door panel is used to accommodate the rear case of the electronic device.
  • the first door panel moves to one side of the inner surface of the first rear shell
  • the second door panel moves to one side of the inner surface of the second rear shell
  • the outer surface of the first rear shell and the third rear shell The outer surfaces of the two rear shells are arranged oppositely, and there may be a gap between the outer surfaces of the first rear shell and the outer surface of the second rear shell, or they may be in contact with each other.
  • the first door panel and the second door panel of the folding device provided by this solution occupy the internal space of the first rear shell and the second rear shell, which is beneficial to realizing a small size design in the thickness direction of the folding device.
  • the first door panel includes an adjacent first part and a second part.
  • the intermediate state switches between the flattened state and the folded state.
  • the first part is located on one side of the inner surface of the back case
  • the second part is arranged corresponding to the outside of the side of the back case
  • the first part is located on all sides of the electronic device.
  • the back shell is covered, the second part is exposed as an appearance part of the electronic device, the first part includes a first body and a first protrusion, the first protrusion protrudes from the surface of the first body and Used to contact the back shell so that a gap is formed between the first body and the back shell, the second part is connected to the first body, and when the folding device is in a folded state, the The second part is located on one side of the inner surface of the rear shell and forms a gap with the rear shell.
  • the first protrusion is in contact with the first rear shell, and a gap is formed between the second part and the first part of the first door panel except the first protrusion and the first rear shell.
  • This solution is beneficial to Reduce the area of the friction interface between the outer surface of the first door panel and the inner surface of the first rear shell.
  • the outer surface of the first door panel in the flat state can still be folded during the folding process.
  • a gap is maintained with the first rear shell, and there is no friction between the two, which can keep the appearance surface of the first door panel from being worn.
  • a groove is provided at a connection between the first body and the first protrusion, and a viscous material is provided on the inner wall of the groove.
  • the friction between the first protrusion and the first rear shell easily generates debris.
  • the groove is used to contain the debris, and the sticky material is used to absorb the debris to prevent the debris from being scattered in other locations of the electronic device and affecting the use experience.
  • the first door panel includes an adjacent first part and a second part.
  • the intermediate state switches between the flattened state and the folded state.
  • the first part is in contact with the inner surface of the back case of the electronic device, and the second part is located outside the side of the back case, that is, in an exposed state, as the electronic device Appearance parts of the device, when the folding device is in the folded state, both the first part and the second part are in contact with the inner surface of the back shell, and the friction coefficient between the second part and the back shell is low. at default value.
  • this embodiment limits the low friction coefficient between the first door panel and the first rear shell, so that during the opening and closing process of the folding device, the friction between the contact surface between the first door panel and the first rear shell There will be no obvious scratches, and the first door panel moves more smoothly relative to the first rear shell.
  • a super-slippery material layer can be provided on the surface of the first door panel, for example, the super-slippery material layer can be formed by spraying Teflon material, or a super-slippery material layer can be provided on the inner surface of the first rear shell, so that the first The friction coefficient between the door panel and the first rear shell is lower than a preset value. This solution is beneficial to realizing a small size in the thickness direction of the folding device.
  • the first door panel includes a first side and a first inclined surface, the first side is used to dock the second door panel, and the first inclined surface is connected between the first side and the first door panel. between the first inner surfaces, the first inclined surface is used to avoid the main axis, and when the folding device is in the flat state, the distance between the first inclined surface and the main axis is greater than the first inner surface and the distance between the main axis.
  • This solution uses the first slope to effectively solve the problem of interference between the first door panel and the spindle during the opening and closing process of the folding device. It can achieve a smaller gap between the first door panel and the spindle, which is conducive to the thin design of electronic equipment.
  • this application provides an electronic device, including a flexible display screen, a back shell, and any possibility of the first aspect.
  • the flexible display screen and the back shell are assembled on opposite sides of the folding device respectively.
  • the flexible display screen is located outside the folding device.
  • the electronic device provided by the present application has the advantages of small size and thinness due to the folding device described in the first aspect.
  • the present application provides an electronic device, including a flexible display screen, a back case, and a folding device.
  • the flexible display screen and the back case are respectively assembled on opposite sides of the folding device.
  • the folding device include:
  • the first mounting plate, the second mounting plate and the spindle is rotationally connected to the first mounting plate and the central axis of relative rotation between the two is the first axis.
  • the spindle rotates with the second mounting plate.
  • the central axis connected and the relative rotation between the two is the second axis;
  • a first door panel and a first rotating arm the first door panel is slidingly connected to the first mounting plate, the first rotating arm is rotationally connected to the main shaft, and the central axis of relative rotation between the two is a third axis, The third axis and the first axis are not collinear, the first door panel and the first rotating arm are movably connected, and during the rotation of the first rotating arm relative to the main shaft, the first door panel Slide relative to the first mounting plate;
  • a second door panel and a second rotating arm the second door panel is slidingly connected to the second mounting plate, the second rotating arm is rotationally connected to the main shaft, and the central axis of relative rotation between the two is the fourth axis.
  • the fourth axis and the second axis are not collinear, the second door panel and the second rotating arm are movably connected, and during the rotation of the second rotating arm relative to the main shaft, the second The door panel slides relative to the second mounting plate;
  • the first door panel and the second door panel are stacked between the first mounting plate and the second mounting plate, and the flexible display screen is located on the side of the folding device. outside.
  • Figure 1 is a schematic structural diagram of an electronic device in a flat state according to a specific embodiment of the present application
  • Figure 2 is a schematic structural diagram of the electronic device shown in Figure 1 in a folded state
  • Figure 3A is a perspective cross-sectional view of a folding device and a rear case of an electronic device assembled together according to an embodiment of the present application.
  • Figure 3A omits the second door panel of the folding device;
  • Figure 3B is a partial enlarged view of Figure 3A;
  • Figure 4A is a plan cross-sectional view of the folding device and the back shell of the electronic device assembled together according to an embodiment of the present application;
  • Figure 4B is a partial enlarged view of Figure 4A;
  • Figure 4C is a partially enlarged plan cross-sectional view of the folding device and the back shell of the electronic device assembled together according to another embodiment of the present application;
  • Figure 5 is a schematic diagram of a folding device in a flat state according to an embodiment of the present application.
  • Figure 6 is a schematic diagram of the folding device provided in an intermediate state according to an embodiment of the present application.
  • Figure 7 is a schematic diagram of a folding device in a folded state according to an embodiment of the present application.
  • Figure 8 is a schematic assembly diagram of the second rotating component of the folding device provided by an embodiment of the present application.
  • Figure 9 is a perspective exploded schematic view of the second rotating assembly shown in Figure 8.
  • Figure 10 is a perspective exploded schematic view of the second rotating assembly shown in Figure 8 from another direction;
  • Figure 11 is a schematic diagram of the related structures of the first door panel and the second door panel of the folding device provided by an embodiment of the present application in a flat state;
  • Figure 12 is a schematic assembly diagram of the relevant structure of the first rotating component of the folding device provided by an embodiment of the present application.
  • Figure 13 is a schematic assembly diagram of the relevant structure of the first rotating component of the folding device provided by an embodiment of the present application.
  • Figure 14 is an exploded schematic diagram of the relevant structure of the first rotating component of the folding device provided by an embodiment of the present application.
  • Figure 15 is an exploded schematic diagram of the partial structure and main shaft of the first rotating component of the folding device provided by an embodiment of the present application;
  • Figure 16 is a schematic diagram of an electronic device in a flat state according to an embodiment of the present application.
  • Figure 17 is a schematic diagram of an electronic device in a folded state according to an embodiment of the present application.
  • Figure 18 is a partial enlarged view of Figure 17;
  • Figure 19 is a schematic diagram of an electronic device in an intermediate state provided by an embodiment of the present application.
  • Figure 20 is a partial enlarged view of Figure 19;
  • Figure 21 is a schematic diagram of the first door panel in the folding device provided by an embodiment of the present application.
  • FIG. 22 is a partially enlarged schematic diagram of an electronic device in an intermediate state according to an embodiment of the present application.
  • Parallel as defined in this application is not limited to absolute parallel. This definition of parallel can be understood as basic parallel, which allows for situations that are not absolutely parallel due to factors such as assembly tolerances, design tolerances, and structural flatness. These The situation may lead to the situation that the sliding fitting part and the first door panel are not absolutely parallel, but this application also defines this situation as being parallel.
  • the vertical defined in this application is not limited to the relationship of absolute vertical intersection (the included angle is 90 degrees). It is allowed that the influence of assembly tolerance, design tolerance, structural flatness and other factors are not absolute vertical intersection. The relationship allows errors in a small angular range, for example, within the assembly error range of 80 degrees to 100 degrees, it can be understood as a vertical relationship.
  • the angle between the first plane area and the second plane area of the electronic device is close to 180 degrees, and the angle relationship between the first plane area and the second plane area is not limited to an absolute 180 degree angle. , it is allowed that the angle between the two caused by factors such as assembly tolerance, design tolerance, structural flatness, etc. is not equal to 180 degrees. For example, it can be an angle greater than 180 degrees, such as 183 degrees, or less than 180 degrees. an angle, such as 178 degrees.
  • Folded state It can be understood that the first plane area and the second plane area of the electronic device are in a nearly parallel stacking relationship, and is not limited to an absolute parallel relationship. Refer to the aforementioned definition of parallel.
  • Embodiments of the present application provide a folding device and an electronic device.
  • the electronic device includes a folding device, a flexible display screen fixed to the folding device, and a back case.
  • the back shell and the flexible display screen are arranged oppositely.
  • the flexible display screen and the back shell are respectively two appearance surfaces of the electronic device.
  • the flexible display screen is fixed to the front of the folding device, and the back shell is fixed to the back of the folding device.
  • the folding device can be unfolded to a flat state, folded to a closed state, or be in an intermediate state between the flat state and the closed state.
  • the folding device includes two door panels. During the unfolding and folding process of the folding device, these two door panels will move with the folding device.
  • the door panels are used to shield the main shaft in the middle of the rear shell in the flat state, and overlap with the rear shell in the folded state. set up.
  • Embodiments of the present application provide a specific door panel driving structure and door panel structure, so that the folding device saves space and can provide a stable and reliable door panel moving trajectory.
  • Figure 1 is a schematic structural diagram of the electronic device 100 in a flat state according to a specific embodiment of the present application
  • Figure 2 is a schematic structural diagram of the electronic device 100 shown in Figure 1 in a folded state.
  • the electronic device 100 shown in FIG. 1 takes a mobile phone as an example for explanation.
  • the electronic device 100 includes a first planar area 1001, a bending area 1002, and a second planar area 1003 connected in sequence.
  • the bending area 1002 can deform so that the first planar area 1001 expands or folds relative to the second planar area 1003.
  • the first planar area 1001 is relatively
  • the surface area 1003 is expanded, and the electronic device 100 is in a flat state.
  • FIG. 1 is a schematic structural diagram of the electronic device 100 in a flat state according to a specific embodiment of the present application
  • Figure 2 is a schematic structural diagram of the electronic device 100 shown in Figure 1 in a folded state.
  • the electronic device 100 shown in FIG. 1 takes a mobile phone as an example for explanation
  • the second planar area 1003 is folded relative to the second planar area 1003 , and the electronic device 100 is in a folded state.
  • the first planar area 1001 and the second planar area 1003 can rotate around the rotation axis 1004 (see FIG. 1 ) of the bending area 1002.
  • the width direction 100 in the width direction X and length direction Y Figures 1 and 2 are both plan views.
  • the thickness direction Z in Figure 1 is a direction perpendicular to the paper surface
  • the length direction Y in Figure 2 is a direction perpendicular to the paper surface.
  • the electronic device 100 includes a flexible display 10 , a folding device 20 and a rear case 30 .
  • the flexible display screen 10 is installed on one side of the folding device 20
  • the rear shell 30 is installed on the other side of the folding device 20 .
  • the folding device 20 forms a flat structure
  • the flexible display screen 10 and the rear case 30 are assembled to the front and back of the folding device 20 respectively.
  • the flexible display The screen 10 is located on the outer surface of the folding device 20 (the flexible display screen 10 surrounds the folding device 20 ), and the rear shell 30 is sandwiched by the folding device 20 .
  • the rear case 30 includes a first rear case 31 and a second rear case 32 .
  • the first rear case 31 and the second rear case 32 are connected through the first door panel 20A and the second door panel 20B of the folding device 20 .
  • the first door panel 20A and the second door panel 20B are appearance parts of the electronic device.
  • the flexible display screen 10 is used to display images, videos, etc.
  • the flexible display screen 10 can be bent.
  • the two parts of the folding device 20 can rotate relative to each other to drive the flexible display screen 10 to fold or unfold.
  • the electronic device 100 has an outward-folding screen structure.
  • FIG. 2 when the electronic device 100 is in the folded state, the flexible display screen 10 is located outside the folding device 20 and is exposed outside the electronic device 100 .
  • the user can touch the flexible display screen 10 when the electronic device 100 is in the folded state.
  • the flexible display screen 10 includes a first straight part 101 , a curved part 102 and a second straight part 103 .
  • the curved portion 102 of the flexible display screen 10 is connected between the first straight portion 101 of the flexible display screen 10 and the second straight portion 103 of the flexible display screen 10 .
  • the first straight portion 101 of the flexible display screen 10 is located in the first planar area 1001.
  • the curved portion 102 of the flexible display screen 10 is located in the bending area 1002.
  • the second straight portion 103 of the flexible display screen 10 is located in the second planar area 1003 .
  • FIG. 1 when the electronic device 100 is in a flat state, the first straight part 101 , the curved part 102 and the second straight part 103 of the flexible display screen 10 can be displayed at the same time to achieve large-screen display and improve user experience. viewing experience. As shown in FIG.
  • the electronic device 100 when the electronic device 100 is in a folded state, the size of the electronic device 100 in the width direction X is reduced, and the electronic device 100 is easy to store and carry.
  • one or more of the first straight portion 101 of the flexible display screen 10 , the curved portion 102 of the flexible display screen 10 , and the second straight portion 103 of the flexible display screen 10 can be displayed.
  • the curved portion 102 of the flexible display screen 10 performs display to realize side display of the electronic device 100 .
  • the first straight portion 101 of the flexible display screen 10 or the second straight portion 103 of the flexible display screen 10 performs display, thereby realizing single-sided display of the electronic device 100 .
  • the flexible display screen 10 can integrate a touch function.
  • the electronic device 100 may wake up a corresponding part of the flexible display screen 10 in response to a user's gesture of touching the flexible display screen 10 .
  • the flexible display screen 10 may be an organic light-emitting diode (OLED) display screen, an active matrix organic light-emitting diode or an active matrix organic light-emitting diode (active matrix organic light-emitting diode, AMOLED). Display screen, mini organic light-emitting diode (mini organic light-emitting diode) display screen, micro organic light-emitting diode (micro organic light-emitting diode) display screen, micro organic light-emitting diode (micro organic light-emitting diode) display screen, quantum dot light-emitting diode (quantum) dot light emitting diodes, QLED) display, etc.
  • OLED organic light-emitting diode
  • AMOLED active matrix organic light-emitting diode
  • Display screen mini organic light-emitting diode (mini organic light-emitting diode) display screen, micro organic light-emitting diode (micro organic light-emitting diode
  • Figure 3A is a perspective cross-sectional view of the folding device 20 and the rear case 30 of the electronic device assembled together according to an embodiment of the present application. In order to clearly express the characteristics of the main axis of the folding device, Figure 3A omits the second door panel of the folding device 20 .
  • Figure 3B is a partial enlarged view of Figure 3A.
  • Figure 4A shows the folding device 20 and the electronic device provided in an embodiment of the present application. Plan sectional view of rear case 30 assembled.
  • Figure 4B is a partial enlarged view of Figure 4A.
  • the folding device 20 includes a frame component 201 , a first rotating component 202 and a second rotating component 203 .
  • the frame assembly 201 includes a first middle frame 21 , a second middle frame 22 , a first mounting plate 23 , a second mounting plate 24 and a main shaft 25 .
  • the extending direction of the main shaft 25 is the length direction Y of the electronic device 100 .
  • the first mounting plate 23 and the second mounting plate 24 are respectively arranged on both sides of the main shaft 25 in the width direction X.
  • the first middle frame 21 and the first mounting plate 23 are fixedly connected, and the first middle frame 21 is located on the first mounting plate.
  • the second middle frame 22 and the second mounting plate 24 are fixedly connected, and the second middle frame 22 is located on the side of the second mounting plate 24 away from the main shaft 25 . That is, along the width direction X of the electronic device 100, the first middle frame 21, the first mounting plate 23, the main shaft 25, the second mounting plate 24, and the second middle frame 22 are arranged in order.
  • the first middle frame 21 and the second middle frame 22 are used to assemble the flexible display screen 10, batteries or other electronic devices (such as camera modules, audio modules, antenna modules, etc.) in the electronic device 100.
  • the first mounting plate 23 and the main shaft 25 are rotationally connected through the first rotating assembly 202, and the second mounting plate 24 and the main shaft 25 are also rotationally connected through the first rotating assembly 202. Therefore, the first middle frame 21 and the second middle frame 21 are rotationally connected to each other through the first rotating assembly 202.
  • the frame 22 can be relatively folded or unfolded, and the folding device 20 can switch between a flattened state and a folded state.
  • an elliptical dotted frame is used to schematically express the location of the first rotating component 202 , which does not represent its specific detailed structure. The detailed structure of the first rotating component 202 will be described later.
  • the second rotating assembly 203 is used to assemble the first door panel 20A and the second door panel 20B to the frame assembly 201.
  • the second rotating assembly 203 is used to slidingly connect the first door panel 20A to the first mounting plate 23 and rotationally connect it to the main shaft 25.
  • the second rotating component 203 is used to slidingly connect the second door panel 20B to the second mounting plate 24 and to rotate to the main shaft 25 .
  • an elliptical dotted frame is used to schematically express the location of the second rotating component 203 , which does not represent its specific detailed structure. The detailed structure of the second rotating component 203 will be described later.
  • the first mounting plate 23 and the main shaft 25 are rotationally connected through the first rotating assembly 202 to form the first axis C1, the second mounting plate 24 and The main shafts 25 are rotationally connected through the first rotating assembly 202 and form the second axis C2.
  • the first mounting plate 23 rotates relative to the main shaft 25 with the first axis C1 as the center
  • the second mounting plate 24 rotates with the first axis C1 as the center.
  • the second axis C2 rotates relative to the main axis 25 as the center.
  • the first door panel 20A and the main shaft 25 are rotationally connected through the second rotating assembly 203 and form the third axis C3.
  • the second door panel 20B and the main shaft 25 are rotationally connected through the second rotating assembly 203 and form the fourth axis C4.
  • the first axis C1 and the third axis C3 are not collinear, and the second axis C2 and the fourth axis C4 are not collinear.
  • the extending directions of the first axis C1, the second axis C2, the third axis C3 and the fourth axis C4 are all in the longitudinal direction Y of the electronic device, and the extending direction of the main axis 25 is also the longitudinal direction Y of the electronic device.
  • the first axis C1, the second axis C2, the third axis C3 and the fourth axis C4 in Figures 5, 6 and 7 are represented by the center positions of the dotted circles.
  • the first door panel 20A includes a first inner surface S1 and a first outer surface S2, and the second door panel 20B includes a second inner surface S3 and a second outer surface S4.
  • the first inner surface S1 is the surface of the first door panel 20A facing the main shaft 25 and the first mounting plate 23 in the flattened state
  • the first outer surface S2 is the surface of the first door panel 20A facing away from the first mounting plate 23 and the main shaft in the flattened state. 25, that is, the appearance surface of the first door panel 20A.
  • the second inner surface S3 is the surface of the second door panel 20B facing the main shaft 25 and the second mounting plate 24 in the flattened state
  • the second outer surface S4 is the surface of the second door panel 20B facing away from the second mounting plate 24 in the flattened state. and the surface of the main shaft 25, that is, the appearance surface of the second door panel 20B.
  • the first axis C1 and the second axis C2 are relatively spaced apart, and the third axis C3 and the fourth axis C4 are relatively spaced apart.
  • the first door panel 20A and the second door panel 20B are butted together to form an integrated plate-like structure for jointly shielding the main shaft 25 .
  • the first axis C1 is located on one side of the inner surface of the first door panel 20A (ie, on the first inner surface S1, or between the first inner surface S1 and the main shaft 25, or in the main shaft 25), and the second axis C2 is located on One side of the inner surface of the second door panel 20B (ie, on the second inner surface S3, or between the second inner surface S3 and the main shaft 25, or in the main shaft 25).
  • the third axis C3 is located on the first outer surface S2 or on the side of the first outer surface S2 away from the first inner surface S1.
  • the fourth axis C4 is located on the second outer surface S4 or the second outer surface S4 is far away from the second inner surface S3. side.
  • an included angle is formed between the first mounting plate 23 and the second mounting plate 24, an included angle is formed between the first door panel 20A and the second door panel 20B, and the first axis C1 is located on the first inner surface.
  • S1 is located on the side away from the first outer surface S2
  • the third axis C3 is located on the side of the first outer surface S2 away from the first inner surface S1
  • the second axis C2 is located on the side of the second inner surface S3 away from the second outer surface S4.
  • the fourth axis C4 is located on the side of the second outer surface S4 away from the second inner surface S3.
  • the first door panel 20A and the second door panel 20B are stacked relative to each other, and the first door panel 20A and the second door panel 20B are located between the first installation plate 23 and the second installation plate 24 .
  • the first axis C1 is located on the side of the first inner surface S1 away from the first outer surface S2
  • the third axis C3 is located on the side of the first outer surface S2 away from the first inner surface S1
  • the second axis C2 is located on the second inner surface S3
  • the fourth axis C4 is located on a side of the second outer surface S4 away from the second inner surface S3.
  • the positions of the first axis C1 and the second axis C2 can determine the movement trajectories of the first mounting plate 23 and the second mounting plate 24 during the unfolding and folding processes.
  • first axis C1 and the second axis C2 are controlled outside the first door panel 20A and the second door panel 20B (referring to the outer surface of the two door panels or the space on the side of the outer surface away from the inner surface),
  • the size of the first rotating component 202 in the width direction X will be relatively large, occupying a large space of the electronic device. Therefore, in the embodiment of the present application, by making the first axis C1 and the third axis C3 not collinear, and the second axis C2 and the fourth axis C4 not being collinear, it is possible to realize the alignment of the second rotating component 203 and the first axis in the width direction X.
  • the rotating component 202 is controlled within a more ideal range to achieve a miniaturized design of the electronic device.
  • first axis C1 and the second axis C2 are inside the first door panel 20A and the second door panel 20B, if the first axis C1 and the third axis C3 are collinear, and the second axis C2 and the fourth axis C4 are collinear, if In the thickness direction Z, there is not enough avoidance space between the first door panel 20A, the second door panel 20B and the main shaft 25. The first door panel 20A and the second door panel 20B may interfere with the main shaft 25 during unfolding or folding.
  • the first door panel 20A and the second door panel 20B can achieve a small size in the thickness direction Z at the same time. There is no interference between the second door panel 20B and the main shaft 25.
  • the first door panel 20A and the second door panel 20B of the folding device can be opened and closed smoothly at the same time.
  • the second axis C2 and the fourth axis C4 are not collinear, in order to prevent the second door panel 20B and the second mounting plate 24 from rotating smoothly during the folding or unfolding process, it is necessary to adjust the second axis C2 and the fourth axis C4.
  • a structure P2 with a degree of freedom is provided at the connection between the door panel 20B and the second rotating component 203, so that when the second rotating component 203 rotates relative to the main shaft 25, it can push the second door panel 20B relative to the main shaft 25.
  • the second mounting plate 24 slides to adjust the relative position between the second door panel 20B and the second mounting plate 24 .
  • the structure P1 with a degree of freedom provided at the connection between the second rotating component 203 and the first door panel 20A can be understood as: a movable connection between the second rotating component 203 and the first door panel 20A (for example, it can be a rotating connection or a sliding connection). ),two They can rotate or move relative to each other.
  • This structure P1 with a degree of freedom is used to overcome the interference problem caused by the non-collinearity of the first axis C1 and the third axis C3 during the folding or unfolding process.
  • the first door panel 20A and the first mounting plate 23 are slidably connected
  • the second door panel 20B and the second mounting plate 24 are slidably connected.
  • the position of the main shaft 25 is fixed, and relative to the position of the main shaft 25, the positions of the first axis C1, the second axis C2, the third axis C3 and the fourth axis C4 do not change. Change. Comparing the state shown in Figure 6 with the flat state shown in Figure 5, the first mounting plate 23 rotates clockwise around the first axis C1, and the second mounting plate 24 rotates counterclockwise around the second axis C2. One door panel 20A rotates clockwise around the third axis C3, and the second door panel 20B rotates counterclockwise around the fourth axis C4. The first mounting plate 23 and the first door panel 20A rotate at the same angle, and the first door panel 20A slides relative to the first mounting plate 23 in the width direction X.
  • the second rotating component 203 pushes against the first door panel 20A, accelerating the sliding speed of the first door panel 20A relative to the first mounting plate 23, so that The first door panel 20A quickly moves to the folded state, which can improve the folding efficiency.
  • Figures 3B, 4B, 8, 9 and 10 are the cross-sectional structures of the second rotating component 203.
  • Figure 8 shows the second rotating component.
  • Figure 9 is an exploded perspective view of the second rotating assembly 203 shown in Figure 8.
  • Figure 10 is an exploded perspective view of the second rotating assembly 203 shown in Figure 8 from another direction.
  • the second rotating component 203 includes component one 203A and component two 203B.
  • the component one 203A is used to connect the first door panel 20A
  • the component two 203B is used to connect the second door panel 20B.
  • the specific structures of component one 203A and component two 203B may be the same.
  • the detailed structure of component one 203A will be described.
  • Component one 203A includes a first slider 3A1 and a first rotating arm 3A2.
  • the first rotating arm 3A2 is rotationally connected to the main shaft 25.
  • the rotation center of the rotational connection structure of the first rotating arm 3A2 and the main shaft 25 is the third axis C3.
  • the first slider 3A1 is fixedly connected to the first door panel 20A.
  • the first slider 3A1 is slidingly connected to the first mounting plate 23.
  • the connection between the first slider 3A1 and the first rotating arm 3A2 has a degree of freedom to allow the first rotation.
  • the first slide block 3A1 and the first door panel 20A can be pushed to slide relative to the first mounting plate 23. In the embodiment shown in FIGS.
  • the first slider 3A1 and the first rotating arm 3A2 are rotationally connected through the rotating shaft D1 .
  • the first slider 3A1 and the first rotating arm 3A2 are rotated.
  • the interference problem caused by the non-collinearity of the first axis C1 and the third axis C3 is adjusted by relative rotation between the first rotating arms 3A2.
  • the first slide block 3A1 and the first rotating arm 3A2 may also be movablely connected, for example, through a sliding groove and a slide block.
  • the positions of the first slider 3A1 and the first rotating arm 3A2 can be adjusted, and during the position adjustment process, the first rotating arm 3A2 can generate a pushing force on the first slider 3A1, so that the first door panel 20A and the first rotating arm 3A2 can be adjusted.
  • the sliding speed of a slider 3A1 relative to the first mounting plate 23 increases.
  • Component two 203B includes a second slider 3B1 and a second rotating arm 3B2.
  • the second rotating arm 3B2 is rotationally connected to the main shaft 25.
  • the rotation center of the rotational connection structure of the second rotating arm 3B2 and the main shaft 25 is the fourth axis C4.
  • the second slider 3B1 is fixedly connected to the second door panel 20B.
  • the second slider 3B1 is slidingly connected to the second mounting plate 24.
  • the connection between the second slider 3B1 and the second rotating arm 3B2 has a degree of freedom to allow the second rotation.
  • the second slider 3B1 and the second rotating arm 3B2 are rotationally connected through the rotating shaft D2. In this way, during the rotation of the second rotating arm 3B2 relative to the main shaft 25, the second slider 3B1 and the second rotating arm 3B2 are rotated.
  • the interference problem caused by the non-collinearity of the second axis C2 and the fourth axis C4 is adjusted by relative rotation between the second rotating arms 3B2.
  • the second slide block 3B1 and the second rotating arm 3B2 may also be movablely connected, for example, through a sliding groove and a sliding block.
  • the position adjustment of the second slider 3B1 and the second rotating arm 3B2 can be realized, and the position adjustment process is During the process, the second rotating arm 3B2 can generate a pushing force on the second slider 3B1, so that the sliding speed of the second door panel 20B and the second slider 3B1 relative to the second installation plate 24 increases.
  • the second slider 3B1 and the second rotating arm 3B2 are slidingly connected.
  • the second rotating arm 3B2 is provided with a chute D3.
  • the second slider 3B1 has a rotating shaft D2.
  • D2 cooperates with the chute D3 to limit the movement trajectory of the rotating shaft D2 by limiting the shape of the chute D3, that is, the positions of the second slider 3B1 and the second rotating arm 3B2 can be adjusted.
  • the main shaft 25 includes a fixed base 251 and a fixed cover 252.
  • the fixed cover 252 is fixedly connected to the top of the fixed base 251 along the thickness direction.
  • the surface of the fixed base 251 facing the fixed cover 252 is provided with a first arc-shaped groove 2511 and a second arc-shaped groove 2512.
  • the first arc-shaped groove 2511 and the second arc-shaped groove 2512 are arranged in the length direction Y. Can be set adjacently.
  • the surface of the fixed cover 252 facing the fixed base 251 is provided with a first arc surface 2521 and a second arc surface 2522.
  • the fixed cover 252 and the fixed base 251 are fixedly connected. Specifically, they can be fixed by screws or glue. It can be understood that: the first arcuate surface 2521 and the first arcuate groove 2511 are arranged oppositely, and a first rotation chute for accommodating the first rotation arm 3A2 is formed between them, and the second arcuate surface 2522 and the second The arcuate grooves 2512 are arranged oppositely, and a second rotation slide groove is formed between them for accommodating the second rotation arm 3B2.
  • the first rotating chute cooperates with the first rotating arm 3A2 to form a rotational connection between the component one 203A and the main shaft 25
  • the second rotating chute cooperates with the second rotating arm 3B2 to form a rotating connection between the component two 203B and the main shaft 25 .
  • the first rotating arm 3A2 includes a first arc-shaped arm 3A21 and a first hinge part 3A22.
  • the first rotating arm 3A2 has an integrated structure.
  • the first hinge part 3A22 is located at one end of the first arc-shaped arm 3A21.
  • the first arc-shaped arm 3A21 Used to cooperate with the first rotating chute.
  • the third axis is the arc center of the first arc-shaped arm.
  • the first arc-shaped arm cooperates with the first rotating chute to realize the rotational connection between the first rotating arm and the main shaft, and has a simple movement trajectory. Reliable Advantage.
  • the first hinge part 3A22 is used for rotationally connecting with the first slider 3A1.
  • the second rotating arm 3B2 and the first rotating arm 3A2 have the same structure.
  • the second rotating arm 3B2 includes a second arc-shaped arm 3B21 and a second hinge part 3B22.
  • the second rotating arm 3B2 has an integrated structure.
  • the second hinge part 3B22 is located at one end of the second arc-shaped arm 3B21.
  • the second arc-shaped arm 3B21 Used to cooperate with the second rotating chute.
  • the second hinge part 3B22 is used for rotationally connecting with the second slider 3B1.
  • the first slider 3A1 includes a sliding fitting part 3A11, a door panel fixing part 3A12 and a rotating connection part 3A13.
  • the sliding fitting portion 3A11 is used for sliding fitting with the first mounting plate 23 .
  • the sliding fitting portion 3A11 is flat-shaped, and the sliding fitting portion 3A11 can be parallel to the first door panel 20A.
  • the flat-plate-shaped design of the sliding fitting portion 3A11 makes the sliding fitting of the first slider 3A1 and the first mounting plate 23 simple, which not only facilitates processing and Assembling can also ensure that the first mounting plate 23 and the first door panel 20A have stable and reliable movement trajectories.
  • the rotary connection part 3A13 is used for rotary connection with the first hinge part 3A22 of the first rotary arm 3A2.
  • the door panel fixing part 3A12 is used to fixedly connect the first door panel 20A.
  • a first fixing plate 3A3 is fixedly connected to the door panel fixing part 3A12, and the first fixing plate 3A3 is an intermediate piece fixedly connected between the first slider 3A1 and the first door panel 20A.
  • the surface area of the first fixing plate 3A3 for connecting the first door panel 20A is larger than the area of the door panel fixing portion 3A12.
  • the first fixing plate 3A3 is fixedly connected to the first door panel 20A to ensure a stable and reliable connection of the first door panel 20A.
  • the first door panel 20A and the first fixed plate 3A3 are detachably connected. Through the detachable connection design, the first door panel 20A can be easily replaced.
  • component two 203B may be the same as component one 203A, and will not be described again.
  • the first fixed plate 3A3 is connected between the first slider 3A1 and the first door panel 20A, and the first fixed plate 3A3 and the first door panel 20A are magnetically connected.
  • the first door panel 20A and the second door panel 20B are connected by magnetic attraction when the folding device is in the flat state.
  • the first door panel 20A is provided with a first magnetic component M1
  • the first fixing plate 3A3 is provided with a second magnetic component M2 (or the first fixing plate).
  • 3A3 itself is a magnetic structure
  • the second door panel 20B is equipped with a third magnetic component M3.
  • the second fixing plate 3A4 is connected between the second slider 3B1 and the second door panel 20B.
  • the second fixing plate 3A4 has a fourth magnetic component M4 inside (or the second fixing plate 3A4 itself has a magnetic structure).
  • the first door panel 20A and the first fixed plate 3A3 are fixedly connected through the magnetic attraction force between the first magnetic component M1 and the second magnetic component M2.
  • the second door panel 20B and the second fixed plate 3A4 are fixedly connected through the magnetic attraction force between the third magnetic component M3 and the fourth magnetic component M4.
  • the first door panel 20A and the second door panel 20B are seamlessly connected by the magnetic attraction of the first magnetic member M1 and the third magnetic member M3. This ensures that in the flattened state, the first door panel 20A and the second door panel 20B are seamlessly connected.
  • the connection between the first door panel 20A and the second door panel 20B is seamless, improving the appearance integrity and customer experience of the electronic device.
  • FIG. 12 and 13 are schematic views of the first rotating assembly 202, the first mounting plate 23, the second mounting plate 24, and part of the main shaft 25.
  • FIG. 14 is a perspective exploded schematic view of the structure shown in FIG. 12.
  • FIG. 15 is a schematic diagram of the two sliding parts and part of the main shaft 25 in the first rotating assembly 202 .
  • the first rotating component 202 includes a first sliding part 2021 , a second sliding part 2022 , a first rotating part 2023 and a second rotating part 2024 .
  • the main shaft 25 includes a fixed base 251 and a fixed cover 252.
  • the fixed base 251 includes a first flip bar 2513, a second flip bar 2514 and a main base body 2515 that all extend along the length direction.
  • the fixed cover 252 is fixed on the top of the main base body 2515.
  • the space between the fixed cover 252 and the main base body 2515 is used to accommodate part of the first sliding part 2021 and part of the second sliding part 2022. Referring to FIGS. 12 and 15 , the main base body is omitted in FIG.
  • the main base body 2515 in FIG. 15 can be understood as the main base body between the first flip bar 2513 and the second flip bar 2514 in FIG. 12 .
  • the first flip bar 2513 and the second flip bar 2514 are flipped relative to the main base body 2515 to adjust the attitude of the main shaft 25, and the main shaft 25 is used to support
  • the surface of the flexible display is flat in the flat state and curved in the folded state.
  • the first sliding part 2021 is slidingly connected to the first mounting plate 23, and the first sliding part 2021 is rotationally connected to the main base body 2515.
  • the first sliding part 2021 includes a sliding body 0211 and a spindle rotating arm 0212.
  • the spindle rotating arm 0212 is located at one end of the sliding body 0211.
  • the sliding body 0211 and the first mounting plate 23 are The slide rail 2311 fits, and the spindle rotating arm 0212 slides with the first matching portion 5152 on the main base body 2515.
  • the spindle rotating arm 0212 is located between the main base body 2515 and the fixed cover 252 and forms a rotating connection structure.
  • the sliding body 0211 slides relative to the first mounting plate 23 , and the spindle rotating arm 0212 and the first matching portion 5152 slide relative to each other, so that the first sliding portion 2021 rotates relative to the spindle 25 .
  • the second sliding part 2022 has the same structure and connection relationship as the first sliding part 2021.
  • the second sliding part 2022 is slidingly connected to the second mounting plate 24, and the second sliding part 2022 is rotationally connected to the main base body 2515 of the spindle 25.
  • the first rotating part 2023 is fixedly connected to the first mounting plate 23, the first rotating part 2023 is rotationally connected to the first flip bar 2513, and the first rotating part 2023 and the first flip bar 2513 are in contact with each other through an arc arm. way to achieve rotational connection.
  • the structure and connection relationship of the second rotating part 2024 are the same as those of the first rotating part 2023, that is, the second rotating part 2024 is fixedly connected to the second mounting plate 24, and the second rotating part 2024 is rotationally connected to the second flip bar 2514.
  • the parts enclosed by dotted lines in the figure are represented by the first rotating component 202 and the second rotating component 203 .
  • the number of the first rotating components 202 and the second rotating components 203 is two.
  • the two first rotating components 202 are respectively close to both ends of the main shaft 25 .
  • the two second rotating components 203 are located between the two first rotating components 202 .
  • One of the second rotating components 203 is adjacent to one of the first rotating components 202
  • the other second rotating component 203 is adjacent to the other first rotating component 202 .
  • Figure 18 is a partial enlarged view of Figure 17.
  • the folding device is in the folded state state, in the thickness direction Z, the first door panel 20A and the second door panel 20B are stacked, and the space between the first door panel 20A and the second door panel 20B is used to accommodate the rear shell of the electronic device (the first rear shell 31 and the second door panel 20B).
  • Second rear shell 32 Second rear shell 32. It can be understood that in the folded state, the first door panel 20A moves to one side of the inner surface of the first rear shell 31 , the second door panel 20B moves to one side of the inner surface of the second rear shell 32 , and the first rear shell 31 The outer surface of the first rear shell 31 and the outer surface of the second rear shell 32 are arranged oppositely.
  • the first door panel and the second door panel of the folding device provided by this solution occupy the internal space of the first rear shell and the second rear shell, which is beneficial to realizing a small size design in the thickness direction of the folding device.
  • the setting of the two gaps G2 can ensure that the first door panel 20A will not collide with the first middle frame 21 and the second door panel 20B will not collide with the second middle frame 22 when the electronic device is flattened and folded.
  • Figure 20 is a partial enlarged view of Figure 19.
  • an included angle is formed between the first middle frame 21 and the second middle frame 22, and part of the first door panel 20A moves to the side of the first rear shell 31.
  • part of the first door panel 20A is located outside the first rear shell 31 and is not covered by the first rear shell 31 .
  • Part of the second door panel 20B moves to one side of the inner surface of the second rear shell 32 , and part of the second door panel 20B is located outside the second rear shell 32 and is not blocked by the second rear shell 32 .
  • the first door panel 20A includes an adjacent first part A1 and a second part A2.
  • the intermediate state is a switching process between the flattened state and the folded state.
  • the first part A1 is located on one side of the inner surface of the first back shell 31 and is blocked by the first back shell 31, and the second part A2 is provided corresponding to the outside of the side of the first back shell 31. , that is to say, the second part A2 is not blocked by the first rear case 31 and is in an exposed state.
  • the second part A2 serves as an appearance part of the electronic device.
  • the first part A1 includes a first body A11 and a first protrusion A12.
  • the first protrusion A12 protrudes from the surface of the first body A11 and is used to contact the first rear shell 31, so that the first protrusion A12 A gap is formed between a main body A11 and the first rear shell 31 , the second part A2 is connected to the first main body A11 , the second part A2 faces the surface of the first rear shell 31 and the first body A11 faces the first rear shell.
  • the surfaces of the shell 31 are coplanar, and when the folding device is in the folded state, a gap is formed between the second part A2 and the first rear shell 31 .
  • the first protrusion A12 is in contact with the first rear shell 31, and the second part A2 and the first part A1 of the first door panel 20A except the other parts of the first protrusion (first body A11) are all connected with the first A gap is formed between the rear shells 31.
  • This solution is beneficial to reducing the area of the friction interface between the outer surface of the first door panel 20A and the inner surface of the first rear shell 31.
  • the outer surface of the lower first door panel 20A can still maintain a gap with the first rear shell 31 during the folding process. There is no friction between the two, and the outer surface of the first door panel 20A can be kept from wear.
  • a groove A13 is provided at the connection between the first body A11 and the first protrusion A12, and a viscous material A14 is provided on the inner wall of the groove A13.
  • the first protrusion A12 and Debris is easily generated by friction on the first rear case 31.
  • the groove A14 is used to accommodate debris, and the sticky material is used to absorb debris to prevent debris from being scattered in other locations of the electronic device and affecting the use experience.
  • the first door panel 20A includes an adjacent first part A1 and a second part A2.
  • the intermediate state is a switching process between the flattened state and the folded state.
  • the first part A1 is in contact with the inner surface of the first rear shell 31, and the second part A2 is located outside the side of the first rear shell 31. That is to say, the second part A2 is not connected to the inner surface of the first rear shell 31.
  • a rear shell 31 is shielded and exposed.
  • the second part A2 serves as the appearance part of the electronic device.
  • both the first part A1 and the second part A2 are in contact with the inner surface of the first rear shell 31 .
  • the first part A1 and the second part A2 are both in contact with the inner surface of the first rear case 31, which is conducive to the design of miniaturizing the thickness of the folding device.
  • the friction coefficient between the first door panel 20A and the first rear shell 31 is lower than the preset value. It can be understood that this embodiment By defining a low friction coefficient between the first door panel 20A and the first rear shell 31, friction will not occur between the contact surfaces between the first door panel 20A and the first rear shell 31 during the opening and closing process of the folding device. There are obvious scratches, and the movement of the first door panel 20A relative to the first rear shell 31 is smoother.
  • a super-slippery material layer can be provided on the surface of the first door panel 20A, for example, the super-slippery material layer can be formed by spraying Teflon material, or a super-slippery material layer can be provided on the inner surface of the first rear shell 31 so that The friction coefficient between the first door panel 20A and the first rear shell 31 is lower than the preset value.
  • the surface of the first portion A1 of the first door panel 20A facing the first rear shell 31 and the surface of the second portion A2 facing the first rear shell 31 are coplanar, that is, the surface of the first door panel 20A facing the first rear shell 31
  • This design can achieve a smaller size of the folding device in the thickness direction.
  • the first door panel 20A includes a first side A3 and a first slope A4.
  • the first side A3 is used to butt the second door panel 20B, and the first slope A4 connects Between the first side A3 and the first inner surface S1 of the first door panel 20A, the first inclined surface A4 is used to avoid the main shaft 25 .
  • the main shaft 25 is represented by a rectangular frame. The distance between the first inner surface S1 and the main shaft 25 is smaller than the distance between the first inclined surface A4 and the main shaft 25 .
  • the distance refers to the average distance between the two ends of the first slope A4 (the end connected to the first inner surface S1 and the end far away from the first inner surface S1 respectively) and the main axis 25 .
  • This solution uses the first slope A4 to effectively solve the problem of interference between the first door panel 20A and the main shaft 25 during the opening and closing process of the folding device. It can achieve a smaller gap between the first door panel 20A and the main shaft 25, which is conducive to the thin design of electronic equipment.
  • 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 embodiments of the present application.
  • the implementation process constitutes any limitation.

Abstract

本申请实施例公开了一种折叠装置和电子设备。折叠装置具有展平状态和折叠状态。折叠装置包括两个门板，折叠装置展开和折叠的过程中，这两个门板会随着折叠装置移动，门板用于在展平状态在后壳中间的位置遮蔽主轴，在折叠状态和后壳重叠设置。通过门板和主轴及安装板之间的连接结构的设置，使得折叠装置结构简洁，具有节约空间优势，能提供稳定可靠的门板移动轨迹。

Description

折叠装置和电子设备
本申请要求于2022年03月24日提交中国专利局、申请号为202210298837.3，发明名称为“折叠装置和电子设备”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
本申请涉及具有柔性显示屏的电子设备，尤其涉及一种折叠装置和电子设备。
背景技术
随着柔性显示屏技术的发展，基于柔性显示屏的折叠装置成为现今行业的新兴技术创新点。对于折叠装置的外折方案定义为：两个主体之间通过主轴转动连接，使得两个主体可以相对折叠或展开，在折叠状态下，柔性显示屏位于两个相对折叠的主体的外表面，两个主体的后壳面对面设置或接触。对于外折方案的折叠装置而言，需要设置遮蔽门板，在展平状态下，遮蔽门板在两个主体的后壳之间且遮蔽折叠装置的主轴。对于折叠装置的遮蔽门板的相关结构设计而言，如何在满足其功能的情况下，能节约电子设备的空间，为业界研发的方向。
发明内容
本申请实施例提供一种折叠装置和电子设备。
第一方面，本申请实施例提供一种折叠装置，包括第一安装板、第二安装板、主轴、第一门板、第二门板、第一转动臂和第二转动臂，所述主轴与所述第一安装板转动连接且构成第一轴，所述主轴与所述第二安装板转动连接且构成第二轴，具体而言，所述主轴和所述第一安装板之间的转动连接处的转动中心为第一轴；所述第一门板滑动连接至所述第一安装板，所述第一转动臂转动连接至所述主轴且形成第三轴，具体而言，所述第一转动臂和所述主轴之间的转动连接处的转动中心为第三轴，所述第三轴和所述第一轴不共线，所述第一门板和所述第一转动臂活动连接，可以理解为所述第一门板和所述第一转动臂连接处具有自由度，以使所述第一转动臂相对所述主轴转动的过程中能够推动所述第一门板相对所述第一安装板滑动；所述第二门板滑动连接至所述第二安装板，所述第二转动臂转动连接至所述主轴且形成第四轴，具体而言，所述第二转动臂和所述主轴之间的转动连接处的转动中心为第四轴，所述第四轴和所述第二轴不共线，所述第二门板和所述第二转动臂活动连接，可以理解为所述第一门板和所述第一转动臂连接处具有自由度，以使所述第二转动臂相对所述主轴转动的过程中能够推动所述第二门板相对所述第二安装板滑动；
所述折叠装置在展平状态时，所述第一门板和所述第二门板对接且共同构成用于遮蔽所述主轴的外观件；所述折叠装置在折叠状态时，所述第一门板和所述第二门板层叠设置在所述第一安装板和所述第二安装板之间。
本申请实施例提通过第一轴、第二轴、第三轴及第四轴的位置的设置，可以实现折叠装置的第一门板和第二门板可以顺利开合的同时，也能实现在宽度方向的小尺寸，厚度方向上的薄型化。具体而言，第一轴和第二轴的位置可以决定第一安装板和第二安装板在展开及折叠过程中的运动轨迹，在电子设备的厚度方向上，第一轴和第二轴若控制在第一门板和第二门板的内侧(指的是这两个门板的内表面或内表面和主轴之间或主轴上)，可以实现第一转动组件具有较小的尺寸。若将第一轴和第二轴若控制在第一门板和第二门板的外侧(指的是这 两个门板的外表面或外表面远离内表面的一侧的空间内)，第一转动组件在宽度方向的尺寸会比较大，占较大的电子设备的空间。因此，本申请实施例通过将第一轴和第三轴不共线、第二轴和第四轴不共线，可以实现在宽度方向上将两个门板和两个安装板的滑动连接结构控制在较理想的范围内，实现电子设备的小型化设计。
一种可能的实现方式中，所述第一门板包括相对设置的第一内表面和第一外表面，所述第一内表面朝向所述第一转动臂，所述第三轴位于所述第一外表面或所述第一外表面远离所述第一内表面的一侧。类似地，第四轴也可以位于第二门板的外表面的一侧。本申请通过将第三轴和第四轴设置在第一门板和第二门板的外表面的一侧，可以实现满足厚度方向上的小尺寸的同时，第一门板和第二门板与主轴之间不干涉。
一种可能的实现方式中，所述第一转动臂和所述第一门板之间转动连接。本申请通过第一门板和第一转动臂之间连接处的自由度的设计可以使得第一转动臂相对主轴转动的过程中能调节第一门板和第一安装板之间的相对位置，本方案通过转动连接的方式实现自由度的设计，具有节约空间，连接可靠的优势。
其它实施方式中，第一门板和第一转动臂之间也可以为其它方式的活动连接，例如滑动连接，可以通过滑槽和滑块配合的方式滑动连接，只要限定滑槽块在滑槽内移动的轨迹，即可以实现第一门板和第一转动臂的位置的调整，而且位置调整的过程中，第一转动臂可以对第一门板产生推持力，使得第一门板相对第一安装板的滑动速度增加。
一种可能的实现方式中，所述第一转动臂包括第一弧形臂，所述第一弧形臂和所述主轴配合实现所述第一转动臂和所述主轴之间的转动连接，所述第三轴为所述第一弧形臂的弧心。本方案提供一种第一转动臂和主轴之间的具体的转动连接方案，具有结构简单，可以提供稳定可靠的移动轨迹。
一种可能的实现方式中，折叠装置还包括第一滑块，所述第一门板通过所述第一滑块滑动连接至所述第一安装板，所述第一门板通过所述第一滑块转动连接至所述第一转动臂，所述第一门板和所述第一滑块之间为能够拆卸式的连接关系。本方案通过设置第一滑块作为第一门板与第一安装板及第一转动臂之间连接的结构，通过能够拆卸式的连接设计，使得第一门板可以便于更换。
一种可能的实现方式中，折叠装置还包括第一固定板，所述第一固定板固定连接至所述滑块，所述第一门板和所述第一固定板之间为能够拆卸式的连接关系。第一固定板的用于连接所述第一门板的表面的面积大于第一滑块的朝向第一门板的表面的面积，本方案通过在第一滑块和第一门板之间设置第一固定板，可以保证第一门板连接的稳定可靠性。
一种可能的实现方式中，所述第一固定板和所述第一门板通过磁吸力的作用连接，所述折叠装置在展平状态时，所述第一门板和所述第二门板之间通过磁吸力对接。当折叠装置在展平状态时，第一门板和第二门板之间通过磁力吸形成无缝拼接，这样可以保证在展平状态下，第一门板和第二门板连接处无缝隙，提升电子设备的外观完整性及客户体验感。
一种可能的实现方式中，所述第一滑块包括滑动配合部、门板固定部和转动连接部，所述滑动配合部用于与所述第一安装板滑动配合，所述滑动配合部呈平板状。具体而言，所述滑动配合部与所述第一门板平行。对于平行的定义，本申请不限定为绝对平行，此平行的定义可以理解为基本平行，允许在组装公差、结构平面度的影响等因素所带来的不是绝对平行的情况，这些情况会导到滑动配合部和第一门板之间不是绝对的平行，但是本申请也定义为这种情况是平行的。本方案通过滑动配合部呈平板状的设计，使得第一滑块和第一安装板的滑动配合简单，不但方便加工及组装，也能保证第一安装板和第一门板有稳定可靠的运动轨 迹。
一种可能的实现方式中，所述折叠装置在折叠状态时，所述第一门板和所述第二门板层叠设置，所述电子设备的后壳的至少部分收纳于所述第一门板和所述第二门板之间的空间。即所述第一门板和所述第二门板之间的空间用于收纳电子设备的后壳。可以理解为，在折叠状态下，第一门板移动至第一后壳的内表面的一侧，第二门板移动至第二后壳的内表面的一侧，第一后壳的外表面和第二后壳的外表面相对设置，第一后壳的外表面和第二后壳的外表面之间可以设有间隙，也可以相互接触。本方案提供的折叠装置的第一门板和第二门板占用的是第一后壳和第二后壳的内部空间，有利于实现折叠装置厚度方向上的小尺寸设计。
一种可能的实现方式中，所述第一门板包括邻接的第一部分和第二部分，所述折叠装置在中间状态时，所述中间状态为所述展平状态和所述折叠状态之间切换过程中的一个状态，所述第一部分位于所述后壳的内表面的一侧，所述第二部分对应所述后壳的侧边的外侧设置，所述第一部分被所述电子设备的所述后壳遮挡，所述第二部分外露作为所述电子设备的外观件，所述第一部分包括第一主体和第一突部，所述第一突部突出于所述第一主体的表面且用于和所述后壳接触，以使得所述第一主体和所述后壳之间形成间隙，所述第二部分连接至所述第一主体，所述折叠装置在折叠状态时，所述第二部分位于所述后壳的内表面的一侧且和所述后壳之间形成间隙。本方案通过第一突部和第一后壳之间接触，而第一门板的第二部分和第一部分除了第一突部的其它部分都和第一后壳之间形成间隙，本方案有利于减小第一门板的外表面和第一后壳的内表面之间的摩擦界面的面积，对于第一门板而言，在展平状态下的第一门板的外表面在折叠的过程中仍然可以与第一后壳保持间隙，二者之间不存在摩擦，可以保持第一门板的外观面免受磨损。
一种可能的实现方式中，所述第一主体和所述第一突部的连接处设有凹槽，所述凹槽内壁设粘性材料。第一突部和第一后壳摩擦容易产生碎屑，凹槽用于收容碎屑，粘性材料用于吸附碎屑，防止碎屑散落在电子设备的其它位置，影响使用体验感。
一种可能的实现方式中，所述第一门板包括邻接的第一部分和第二部分，所述折叠装置在中间状态时，所述中间状态为所述展平状态和所述折叠状态之间切换过程中的一个状态，所述第一部分和所述电子设备的所述后壳的内表面接触，所述第二部分位于所述后壳的侧边的外侧，即呈外露状态，作为所述电子设备的外观件，所述折叠装置在折叠状态时，所述第一部分和所述第二部分均和所述后壳的内表面接触，第二部分与所述后壳之间的摩擦系数为低于预设值。可以理解为，本实施方式通过限定第一门板和第一后壳之间的低摩擦系数，使得折叠装置在开合的过程中，第一门板和第一后壳之间的接触面之间摩擦不会产生明显的划痕，而且第一门板相对第一后壳的移动更顺畅。具体而言，可以在第一门板的表面设超滑材料层，例如通过喷涂特氟龙材料形成超滑材料层，也可以在第一后壳的内表面设置超滑材料层，以使得第一门板与第一后壳之间的摩擦系数为低于预设值。本方案有利于实现折叠装置厚度方向上的小尺寸。
一种可能的实现方式中，所述第一门板包括第一侧面和第一斜面，所述第一侧面用于对接所述第二门板，所述第一斜面连接在第一侧面和第一门板的第一内表面之间，所述第一斜面用于避让所述主轴，所述折叠装置在展平状态时，所述第一斜面和所述主轴之间的距离大于所述第一内表面和所述主轴之间的距离。本方案通过第一斜面实解决折叠装置开合过程中第一门板和主轴干涉的问题，可以实现第一门板和主轴之间的间隙更小，有利于电子设备薄型化设计。
第二方面，本申请提供一种电子设备，包括柔性显示屏、后壳和第一方面任意一种可能 的实施方式所述的折叠装置，所述柔性显示屏和所述后壳分别组装于所述折叠装置的相对的两侧，在折叠状态下，所述柔性显示屏位于所述折叠装置的外侧。本申请提供的电子设备因具有第一方面所述的折叠装置，具有小尺寸、薄型化的优势。
第三方面，本申请提供一种电子设备，包括柔性显示屏、后壳和折叠装置，所述柔性显示屏和所述后壳分别组装于所述折叠装置的相对的两侧，所述折叠装置包括：
第一安装板、第二安装板和主轴，所述主轴与所述第一安装板转动连接且二者之间相对转动的中心轴为第一轴，所述主轴与所述第二安装板转动连接且二者之间相对转动的中心轴为第二轴；
第一门板和第一转动臂，所述第一门板滑动连接所述第一安装板，所述第一转动臂和所述主轴转动连接且二者之间相对转动的中心轴为第三轴，所述第三轴和所述第一轴不共线，所述第一门板和所述第一转动臂活动连接，所述第一转动臂相对所述主轴转动的过程中，所述第一门板相对所述第一安装板滑动；
第二门板和第二转动臂，所述第二门板滑动连接至所述第二安装板，所述第二转动臂和所述主轴转动连接且二者之间相对转动的中心轴为第四轴，所述第四轴和所述第二轴不共线，所述第二门板和所述第二转动臂活动连接，所述第二转动臂相对所述主轴转动的过程中，所述第二门板相对所述第二安装板滑动；
所述折叠装置在展平状态时，所述第一门板和所述第二门板对接；
所述折叠装置在折叠状态时，所述第一门板和所述第二门板层叠设置在所述第一安装板和所述第二安装板之间，所述柔性显示屏位于所述折叠装置的外侧。
附图说明
图1是本申请一种具体的实施例提供的电子设备处于展平状态的结构示意图；
图2是图1所示电子设备处于折叠状态的结构示意图；
图3A是本申请一种实施方式提供的折叠装置和电子设备的后壳组装在一起的立体剖面图，图3A省略了折叠装置的第二门板；
图3B是图3A的局部放大视图；
图4A是本申请一种实施方式提供的折叠装置和电子设备的后壳组装在一起平面剖面图；
图4B是图4A的局部放大视图；
图4C是本申请另一种实施方式提供的折叠装置和电子设备的后壳组装在一起局部放大平面剖面图；
图5是本申请一种实施方式提供的折叠装置在展平状态下的示意图；
图6是本申请一种实施方式提供的折叠装置在中间状态下的示意图；
图7是本申请一种实施方式提供的折叠装置在折叠状态下的示意图；
图8是本申请一种实施方式提供的折叠装置的第二转动组件的组装示意图；
图9是图8所示的第二转动组件的立体分解示意图；
图10是图8所示的第二转动组件的另一个方向的立体分解示意图；
图11是本申请一种实施方式提供的折叠装置的第一门板和第二门板在展平状态下相关结构的示意图；
图12是本申请一种实施方式提供的折叠装置的第一转动组件相关结构的组装示意图；
图13是本申请一种实施方式提供的折叠装置的第一转动组件相关结构的组装示意图；
图14是本申请一种实施方式提供的折叠装置的第一转动组件相关结构的分解示意图；
图15是本申请一种实施方式提供的折叠装置的第一转动组件的部分结构和主轴的分解示意图；
图16是本申请一种实施方式提供的电子设备在展平状态的示意图；
图17是本申请一种实施方式提供的电子设备在折叠状态的示意图；
图18是图17的部分放大图；
图19是本申请一种实施方式提供的电子设备在中间状态的示意图；
图20是图19的部分放大图；
图21是本申请一种实施方式提供的折叠装置中的第一门板的示意图；
图22是本申请一种实施方式提供的电子设备在中间状态的局部放大示意图。
具体实施方式
术语的解释
平行：本申请所定义的平行不限定为绝对平行，此平行的定义可以理解为基本平行，允许在组装公差、设计公差、结构平面度的影响等因素所带来的不是绝对平行的情况，这些情况会导到滑动配合部和第一门板之间不是绝对的平行，但是本申请也定义为这种情况是平行的。
垂直：本申请所定义的垂直不限定为绝对的垂直相交(夹角为90度)的关系，允许在组装公差、设计公差、结构平面度的影响等因素所带来的不是绝对的垂直相交的关系，允许存在小角度范围的误差，例如80度至100度的范围的组装误差范围内，都可以被理解为是垂直的关系。
展平状态：可以理解为电子设备的第一平面区域和第二平面区域之间的夹角接近180度，不限定第一平面区域和第二平面区域之间为绝对的180度的夹角关系，允许在组装公差、设计公差、结构平面度的影响等因素所带来的二者之间的夹角不等于180度，例如可以大于180度的某个角度，例如183度，或者小于180度的某个角度，例如178度。
折叠状态：可以理解为电子设备的第一平面区域和第二平面区域之间为接近平行的层叠关系，不限定为绝对的平行关系，参照前述平行的定义。
下面结合本申请实施例中的附图对本申请实施例进行描述。
本申请实施例提供一种折叠装置和电子设备，电子设备包括折叠装置、固定于折叠装置的柔性显示屏、和后壳。后壳和柔性显示屏相对设置，柔性显示屏和后壳分别为电子设备的两个外观面，柔性显示屏固定至折叠装置的正面，后壳固定在折叠装置的背面。折叠装置可以展开至展平状态，也可以折叠至闭合状态，也可以处于展平状态与闭合状态之间的中间状态。折叠装置包括两个门板，折叠装置展开和折叠的过程中，这两个门板会随着折叠装置移动，门板用于在展平状态在后壳中间的位置遮蔽主轴，在折叠状态和后壳重叠设置。本申请实施例提供具体的门板的驱动结构及门板的结构，使得折叠装置具有节约空间，可以提供稳定可靠的门板移动轨迹。
请一并参阅图1和图2，图1是本申请一种具体的实施例提供的电子设备100处于展平状态的结构示意图；图2是图1所示电子设备100处于折叠状态的结构示意图。图1所示电子设备100以手机为例进行说明。电子设备100包括依次连接的第一平面区域1001、弯折区域1002以及第二平面区域1003。弯折区域1002能够发生形变，以使第一平面区域1001相对第二平面区域1003展开或折叠。如图1所示，第一平面区域1001相对第二平 面区域1003展开，电子设备100处于展平状态。如图2所示，第二平面区域1003相对第二平面区域1003折叠，电子设备100处于折叠状态。弯折区域1002形变时，第一平面区域1001和第二平面区域1003能够绕弯折区域1002的转动轴1004(参阅图1)转动。其中，定义电子设备100的宽度方向X垂直于弯折区域1002的转动轴1004，电子设备100的长度方向Y平行于弯折区域1002的转动轴1004，电子设备100的厚度方向Z垂直于电子设备100的宽度方向X及长度方向Y。图1和图2均为平面视图，图1中的厚度方向Z为垂直于纸面的方向，图2中的长度方向Y为垂直于纸面的方向。
参阅图1和图2，电子设备100包括柔性显示屏10、折叠装置20和后壳30。柔性显示屏10安装于折叠装置20的一侧，后壳30安装于折叠装置20的另一侧。具体而言，电子设备100在展平状态下，折叠装置20构成平板状架构，柔性显示屏10和后壳30分别组装至折叠装置20的正面和背面，电子设备100在折叠状态下，柔性显示屏10位于折叠装置20的外表面(柔性显示屏10包围折叠装置20)，后壳30被折叠装置20夹在中间。图1中显示的是电子设备100的平面图，且显示的是后壳30的一面。后壳30包括第一后壳31和第二后壳32。展平状态下，第一后壳31和第二后壳32之间通过折叠装置20的第一门板20A和第二门板20B连接，第一门板20A和第二门板20B为电子设备的外观件。
柔性显示屏10用于显示图像、视频等。柔性显示屏10能够弯折。折叠装置20的两部分能够相对转动，以带动柔性显示屏10折叠或展开。其中，电子设备100为屏幕外折结构。如图2所示，电子设备100处于折叠状态时，柔性显示屏10位于折叠装置20外侧，而外露于电子设备100外侧，用户能够在电子设备100处于折叠状态时，触摸柔性显示屏10。柔性显示屏10包括第一平直部分101、弯曲部分102及第二平直部分103。柔性显示屏10的弯曲部分102连接在柔性显示屏10的第一平直部分101与柔性显示屏10的第二平直部分103之间。柔性显示屏10的第一平直部分101位于第一平面区域1001。柔性显示屏10的弯曲部分102位于弯折区域1002。柔性显示屏10的第二平直部分103位于第二平面区域1003。如图1所示，电子设备100处于展平状态时，柔性显示屏10的第一平直部分101、弯曲部分102及第二平直部分103可以同时显示，以实现大屏显示，以提高用户的观看体验。如图2所示，电子设备100处于折叠状态时，电子设备100在其宽度方向X上的尺寸缩小，电子设备100便于收纳和携带。此时，柔性显示屏10的第一平直部分101、柔性显示屏10的弯曲部分102及柔性显示屏10的第二平直部分103中的一者或多者能够进行显示。例如，柔性显示屏10的弯曲部分102进行显示，实现电子设备100的侧边显示。柔性显示屏10的第一平直部分101或柔性显示屏10的第二平直部分103进行显示，实现电子设备100的单侧显示。其中，柔性显示屏10可以集成触控功能。电子设备100可以响应于用户触摸柔性显示屏10的手势，唤醒柔性显示屏10的相应部分。
示例的，柔性显示屏10可以是有机发光二极管(organic light-emitting diode，OLED)显示屏，有源矩阵有机发光二极体或主动矩阵有机发光二极体(activematrix organic light-emitting diode，AMOLED)显示屏、迷你发光二极管(mini organic light-emitting diode)显示屏、微型发光二极管(micro organic lightemitting diode)显示屏、微型有机发光二极管(micro organic light-emitting diode)显示屏、量子点发光二极管(quantum dot light emitting diodes，QLED)显示屏等。
图3A为本申请一种实施方式提供的折叠装置20和电子设备的后壳30组装在一起的立体剖面图，为了清楚表达折叠装置的主轴的特征，图3A省略了折叠装置20的第二门板。图3B是图3A的局部放大视图。图4A为本申请一种实施方式提供的折叠装置20和电子设备的 后壳30组装在一起平面剖面图。图4B是图4A的局部放大视图。
参阅图3A、图3B和图4A、图4B，折叠装置20包括框架组件201、第一转动组件202和第二转动组件203。框架组件201包括第一中框21、第二中框22、第一安装板23、第二安装板24和主轴25，主轴25的延伸方向为电子设备100的长度方向Y。第一安装板23和第二安装板24分别设置在主轴25的宽度方向X上的两侧，第一中框21和第一安装板23固定连接，且第一中框21位于第一安装板23远离主轴25的一侧，第二中框22和第二安装板24固定连接，且第二中框22位于第二安装板24远离主轴25的一侧。即，沿着电子设备100的宽度方向X，第一中框21、第一安装板23、主轴25、第二安装板24、第二中框22依次排列。第一中框21和第二中框22用于组装柔性显示屏10、电子设备100内的电池或其它电子器件(例如摄像头模组、音频模组、天线模组等等)。
第一安装板23和主轴25之间通过第一转动组件202转动连接，第二安装板24和主轴25之间亦通过第一转动组件202转动连接，因此，第一中框21和第二中框22能够相对折叠或展开，折叠装置20能够实现在展平状态和折叠状态之间切换。图3A中用椭圆形虚线框示意性地表达了第一转动组件202所在的位置，并不代表其具体的详细结构，第一转动组件202的详细结构会在后文展开描述。第二转动组件203用于将第一门板20A和第二门板20B组装至框架组件201，第二转动组件203用于将第一门板20A滑动连接至第一安装板23及转动连接至主轴25，第二转动组件203用于将第二门板20B滑动连接至第二安装板24及转动连接至主轴25。图3A中用椭圆形虚线框示意性地表达了第二转动组件203所在的位置，并不代表其具体的详细结构，第二转动组件203的详细结构会在后文展开描述。
图5、图6和图7示意性地表达了折叠装置20的展平状态、中间状态和折叠状态，示意性地表达第一转动组件202和第二转动组件203在每个状态下的位置及动作过程。
参阅图5、图6和图7，折叠装置20处于展平状态下，第一安装板23和主轴25之间通过第一转动组件202转动连接且形成第一轴C1，第二安装板24和主轴25之间通过第一转动组件202转动连接且形成第二轴C2。第一安装板23和第二安装板24相对开合的过程(即展开或折叠的过程)中，第一安装板23以第一轴C1为中心相对主轴25转动，第二安装板24以第二轴C2为中心相对主轴25转动。第一门板20A和主轴25之间通过第二转动组件203转动连接且形成第三轴C3，第二门板20B和主轴25之间通过第二转动组件203转动连接且形成第四轴C4。第一轴C1和第三轴C3不共线，第二轴C2和第四轴C4不共线。第一轴C1、第二轴C2、第三轴C3和第四轴C4的延伸方向均为电子设备的长度方向Y，主轴25延伸的方向也是电子设备的长度方向Y。图5、图6和图7中的第一轴C1、第二轴C2、第三轴C3和第四轴C4通过虚线圆的圆心位置来表示。
第一门板20A包括第一内表面S1和第一外表面S2，第二门板20B包括第二内表面S3和第二外表面S4。第一内表面S1为第一门板20A在展平状态下朝向主轴25和第一安装板23的表面，第一外表面S2为第一门板20A在展平状态下背离第一安装板23和主轴25的表面，即第一门板20A的外观面。同样，第二内表面S3为第二门板20B在展平状态下朝向主轴25和第二安装板24的表面，第二外表面S4为第二门板20B在展平状态下背离第二安装板24和主轴25的表面，即第二门板20B的外观面。
图5所示的展平状态下，在宽度方向X上，第一轴C1和第二轴C2相对间隔排列，第三轴C3和第四轴C4相对间隔排列。在展平状态下，第一门板20A和第二门板20B对接，以构成一体式的板状结构，用于共同遮蔽主轴25。第一轴C1位于第一门板20A的内表面的一侧(即第一内表面S1上、或第一内表面S1和主轴25之间、或主轴25中)，第二轴C2位于 第二门板20B的内表面的一侧(即第二内表面S3上、或第二内表面S3和主轴25之间、或主轴25中)。第三轴C3位于第一外表面S2上或第一外表面S2远离第一内表面S1的一侧，第四轴C4位于第二外表面S4上或者第二外表面S4远离第二内表面S3的一侧。
参阅图6，在中间状态下，第一安装板23和第二安装板24之间形成夹角，第一门板20A和第二门板20B之间形成夹角，第一轴C1位于第一内表面S1远离第一外表面S2的一侧，第三轴C3位于第一外表面S2远离第一内表面S1的一侧，第二轴C2位于第二内表面S3远离第二外表面S4的一侧，第四轴C4位于第二外表面S4远离第二内表面S3的一侧。
参阅图7，在折叠状态下，第一门板20A和第二门板20B相对层叠设置，且第一门板20A和第二门板20B位于第一安装板23和第二安装板24之间。第一轴C1位于第一内表面S1远离第一外表面S2的一侧，第三轴C3位于第一外表面S2远离第一内表面S1的一侧，第二轴C2位于第二内表面S3远离第二外表面S4的一侧，第四轴C4位于第二外表面S4远离第二内表面S3的一侧。
具体而言，第一轴C1和第二轴C2的位置可以决定第一安装板23和第二安装板24在展开及折叠过程中的运动轨迹，在电子设备100的厚度方向Z上，第一轴C1和第二轴C2若控制在第一门板20A和第二门板20B的内侧(指的是这两个门板的内表面或内表面和主轴之间或主轴上)，可以实现第一转动组件202具有较小的尺寸。若将第一轴C1和第二轴C2若控制在第一门板20A和第二门板20B的外侧(指的是这两个门板的外表面或外表面远离内表面的一侧的空间内)，第一转动组件202在宽度方向X上的尺寸会比较大，占较大的电子设备的空间。因此，本申请实施例通过将第一轴C1和第三轴C3不共线、第二轴C2和第四轴C4不共线，可以实现在宽度方向X上将第二转动组件203和第一转动组件202控制在较理想的范围内，实现电子设备的小型化设计。
由于第一轴C1和第二轴C2在第一门板20A和第二门板20B的内侧，若第一轴C1和第三轴C3共线，及第二轴C2和第四轴C4共线，若在厚度方向Z上，第一门板20A、第二门板20B和主轴25之间没有足够的避让空间，第一门板20A和第二门板20B在展开或折叠的过程中会与主轴25产生干涉。本申请通过将第三轴C3和第四轴C4设置在第一门板20A和第二门板20B的外表面的一侧，可以实现满足厚度方向Z上的小尺寸的同时，第一门板20A和第二门板20B与主轴25之间不干涉。
因此本申请实施例通过第一轴C1、第二轴C2、第三轴C3及第四轴C4的位置的设置，可以实现折叠装置的第一门板20A和第二门板20B可以顺利开合的同时，也能实现在宽度方向X上的小尺寸，厚度方向Z上的薄型化。
第一轴C1和第三轴C3不共线的情况下，为了防止在折叠或展开的过程中，第一门板20A和第一安装板23都能顺利转动，需要在所述第一门板20A和所述第二转动组件203的连接处设置具有自由度的结构P1，以使所述第二转动组件203相对所述主轴25转动的过程中能够推动所述第一门板20A相对所述第一安装板23滑动，调节第一门板20A和第一安装板23之间的相对位置。同样，在第二轴C2和第四轴C4不共线的情况下，为了防止在折叠或展开的过程中，第二门板20B和第二安装板24都能顺利转动，需要在所述第二门板20B和所述第二转动组件203的连接处设置具有自由度的结构P2，以使所述第二转动组件203相对所述主轴25转动的过程中能够推动所述第二门板20B相对所述第二安装板24滑动，调节第二门板20B和第二安装板24之间的相对位置。
第二转动组件203和第一门板20A之间的连接处设置具有自由度的结构P1可以理解为：第二转动组件203和第一门板20A之间活动连接(例如：可以为转动连接或滑动连接)，二 者之间可以相对转动或移动，此具有自由度的结构P1用于克服在折叠或展开的过程中，因第一轴C1和第三轴C3不共线产生的干涉问题。具体而言，第一门板20A和第一安装板23滑动连接，第二门板20B和第二安装板24滑动连接。
在展平状态和折叠状态之间切换的过程中，主轴25的位置为固定的，相对主轴25的位置，第一轴C1、第二轴C2、第三轴C3和第四轴C4的位置不变。对比图6所示的状态和图5所示的展平状态，第一安装板23以第一轴C1为中心顺时针转动，第二安装板24以第二轴C2为中心逆时针转动，第一门板20A以第三轴C3为中心顺时针转动，第二门板20B以第四轴C4为中心逆时针转动。第一安装板23和第一门板20A转动的角度相同，第一门板20A在宽度方向X上相对第一安装板23滑动。
由于第一轴C1和第三轴C3不共线，在折叠的过程中，第二转动组件203对第一门板20A推顶力，加速第一门板20A相对第一安装板23滑动的速度，使得第一门板20A快速移动至折叠状态，可以提升折叠的效率。
第二转动组件203的具体结构参阅图3B、图4B、图8、图9和图10，图3B和图4B显示的剖面的位置为第二转动组件203的剖面结构，图8为第二转动组件203的各部分结构的组装示意图，图9为图8所示的第二转动组件203的立体分解示意图，图10为图8所示的第二转动组件203的另一个方向的立体分解示意图。
参阅图3B、图4B，第二转动组件203包括组件一203A和组件二203B，组件一203A用于连接第一门板20A，组件二203B用于连接第二门板20B。一种实施方式中，组件一203A和组件二203B的具体结构可以相同，接下来对组件一203A的详细结构展开说明。
组件一203A包括第一滑块3A1和第一转动臂3A2，所述第一转动臂3A2转动连接至所述主轴25，第一转动臂3A2和主轴25转动连接结构的转动中心为第三轴C3。第一滑块3A1和第一门板20A固定连接，第一滑块3A1滑动连接至第一安装板23，第一滑块3A1和第一转动臂3A2的连接处具有自由度，以使第一转动臂3A2相对主轴25转动的过程中能够推动第一滑块3A1和第一门板20A相对第一安装板23滑动。图3B和图4B所示的实施方式中，第一滑块3A1和第一转动臂3A2通过转轴D1转动连接，这样在第一转动臂3A2相对主轴25转动的过程中，第一滑块3A1和第一转动臂3A2之间通过相对转动的方式调节第一轴C1和第三轴C3不共线所带来的干涉问题。其它实施方式中，第一滑块3A1和第一转动臂3A2之间也可以为活动连接，例如通过滑槽和滑块配合的方式滑动连接，只要限定滑槽块在滑槽内移动的轨迹，即可以实现第一滑块3A1和第一转动臂3A2的位置的调整，而且位置调整的过程中，第一转动臂3A2可以对第一滑块3A1产生推持力，使得第一门板20A和第一滑块3A1相对第一安装板23的滑动速度增加。
组件二203B包括第二滑块3B1和第二转动臂3B2，所述第二转动臂3B2转动连接至所述主轴25，第二转动臂3B2和主轴25转动连接结构的转动中心为第四轴C4。第二滑块3B1和第二门板20B固定连接，第二滑块3B1滑动连接至第二安装板24，第二滑块3B1和第二转动臂3B2的连接处具有自由度，以使第二转动臂3B2相对主轴25转动的过程中能够推动第二滑块3B1和第二门板20B相对第二安装板24滑动。图3B和图4B所示的实施方式中，第二滑块3B1和第二转动臂3B2通过转轴D2转动连接，这样在第二转动臂3B2相对主轴25转动的过程中，第二滑块3B1和第二转动臂3B2之间通过相对转动的方式调节第二轴C2和第四轴C4不共线所带来的干涉问题。其它实施方式中，第二滑块3B1和第二转动臂3B2之间也可以为活动连接，例如通过滑槽和滑块配合的方式滑动连接，只要限定滑槽块在滑槽内移动的轨迹，即可以实现第二滑块3B1和第二转动臂3B2的位置的调整，而且位置调整的过 程中，第二转动臂3B2可以对第二滑块3B1产生推持力，使得第二门板20B和第二滑块3B1相对第二安装板24的滑动速度增加。
参阅图4C，图4C所示的实施方式中，第二滑块3B1和第二转动臂3B2之间滑动连接，第二转动臂3B2上设滑槽D3，第二滑块3B1具有转轴D2，转轴D2和滑槽D3配合，通过限定滑槽D3的形态来限定转轴D2的移动轨迹，即可以实现第二滑块3B1和第二转动臂3B2的位置的调整。
参阅图8、图9和图10，这三个图描述了组件一203A、主轴25和组件二203B中的第二转动臂3B2的结构。主轴25包括固定座251和固定盖252，沿厚度方向，固定盖252固定连接至固定座251的顶部。固定座251朝向固定盖252的面设有第一弧形凹槽2511和第二弧形凹槽2512，第一弧形凹槽2511和第二弧形凹槽2512没长度方向Y排列，二者可以邻接设置。固定盖252朝向固定座251的面设有第一弧面2521和第二弧面2522。固定盖252和固定座251固定连接，具体而言，二者可以通过螺丝固定或者胶水固定。可以理解的是：第一弧面2521和第一弧形凹槽2511相对设置，且二者之间构成用于收容第一转动臂3A2的第一转动滑槽，第二弧面2522和第二弧形凹槽2512相对设置，且二者之间构成用于收容第二转动臂3B2的第二转动滑槽。第一转动滑槽与第一转动臂3A2配合构成组件一203A与主轴25的转动连接，第二转动滑槽与第二转动臂3B2配合构成组件二203B与主轴25的转动连接。
第一转动臂3A2包括第一弧形臂3A21和第一铰接部3A22，第一转动臂3A2为一体式结构，第一铰接部3A22位于第一弧形臂3A21的一端，第一弧形臂3A21用于和第一转动滑槽配合。所述第三轴为所述第一弧形臂的弧心，通过第一弧形臂和和第一转动滑槽配合的方式实现第一转动臂和主轴之间的转动连接，具有移动轨迹简单可靠的优势。第一铰接部3A22用于和第一滑块3A1转动连接。第二转动臂3B2和第一转动臂3A2的结构相同。第二转动臂3B2包括第二弧形臂3B21和第二铰接部3B22，第二转动臂3B2为一体式结构，第二铰接部3B22位于第二弧形臂3B21的一端，第二弧形臂3B21用于和第二转动滑槽配合。第二铰接部3B22用于和第二滑块3B1转动连接。
第一滑块3A1包括滑动配合部3A11、门板固定部3A12和转动连接部3A13。滑动配合部3A11用于与第一安装板23滑动配合。滑动配合部3A11呈平板状，滑动配合部3A11可以与第一门板20A平行，滑动配合部3A11呈平板状的设计使得第一滑块3A1和第一安装板23的滑动配合简单，不但方便加工及组装，也能保证第一安装板23和第一门板20A有稳定可靠的运动轨迹。转动连接部3A13用于和第一转动臂3A2的第一铰接部3A22转动连接。门板固定部3A12用于固定连接第一门板20A。
一种具体的实施方式中，门板固定部3A12上固定连接第一固定板3A3，第一固定板3A3为第一滑块3A1和第一门板20A之间固定连接的中间件。第一固定板3A3的用于连接第一门板20A的表面的面积大于门板固定部3A12的面积，通过第一固定板3A3固定连接第一门板20A，可以保证第一门板20A连接的稳定可靠。
一种具体的实施方式中，所述第一门板20A和所述第一固定板3A3之间为能够拆卸式的连接关系。通过能够拆卸式的连接设计，使得第一门板20A可以便于更换。
组件二203B的具体的结构可以与组件一203A相同，不再赘述。
参阅图11，一种具体的实施方式中，所述第一固定板3A3连接在第一滑块3A1和第一门板20A之间，所述第一固定板3A3和所述第一门板20A通过磁吸力的作用连接，所述折叠装置在展平状态时，所述第一门板20A和所述第二门板20B之间通过磁吸力对接。具体而言，第一门板20A内设第一磁性件M1，第一固定板3A3内设第二磁性件M2(或者第一固定板 3A3本身为磁性结构)，第二门板20B内设第三磁性件M3。第二固定板3A4连接在第二滑块3B1和第二门板20B之间，第二固定板3A4内设第四磁性件M4(或者第二固定板3A4本身为磁性结构)。第一门板20A和第一固定板3A3之间通过第一磁性件M1和第二磁性件M2之间的磁吸力固定连接。第二门板20B和第二固定板3A4之间通过第三磁性件M3和第四磁性件M4之间的磁吸力固定连接。当折叠装置在展平状态时，第一门板20A和第二门板20B之间通过第一磁性件M1和第三磁性件M3的磁力吸形成无缝拼接，这样可以保证在展平状态下，第一门板20A和第二门板20B连接处无缝隙，提升电子设备的外观完整性及客户体验感。
第一转动组件的具体结构透过图12、图13、图14和图15展开说明。图12和图13为第一转动组件202和第一安装板23、第二安装板24、及部分主轴25的示意图，图14是图12所示的结构的立体分解示意图。图15是第一转动组件202中的两个滑动部和部分主轴25的示意图。
参阅图12、图13、图14和图15，第一转动组件202包括第一滑动部2021、第二滑动部2022、第一转动部2023和第二转动部2024。主轴25包括固定座251和固定盖252，固定座251包括均沿长度方向延伸的第一翻转条2513、第二翻转条2514和主座体2515，固定盖252固定在主座体2515的顶部，固定盖252和主座体2515之间用于收容部分第一滑动部2021和部分第二滑动部2022。结合参阅图12和图15，图12中省略了主座体，图15中的主座体2515可以理解为图12中的第一翻转条2513和第二翻转条2514之间的主座体。在展平状态下，沿宽度方向X，第一翻转条2513和第二翻转条2514分别设置在主座体2515的两侧，第一翻转条2513和第二翻转条2514均与主座体2515转动连接，当折叠装置从展平状态切换至折叠状态的过程中，第一翻转条2513和第二翻转条2514均相对主座体2515翻转，以调节主轴25的姿态，主轴25的用于支撑柔性显示屏的表面在展平状态下为平面状，在折叠状态下呈弧形。
第一滑动部2021和第一安装板23滑动连接，第一滑动部2021和主座体2515转动连接。具体而言，如图14和图15所示，第一滑动部2021包括滑动主体0211和主轴转动臂0212，主轴转动臂0212位于滑动主体0211的一端，滑动主体0211和第一安装板23上的滑轨2311配合，主轴转动臂0212和主座体2515上的第一配合部5152滑动配合，具体而言，主轴转动臂0212位于主座体2515和固定盖252之间且构成转动连接结构。在折叠装置展开或折叠的过程中，滑动主体0211相对第一安装板23滑动，主轴转动臂0212和第一配合部5152相对滑动，以使第一滑动部2021相对主轴25转动。第二滑动部2022的结构和第一滑动部2021结构及连接关系相同，第二滑动部2022和第二安装板24滑动连接，第二滑动部2022和主轴25的主座体2515转动连接。
第一转动部2023和所述第一安装板23固定连接，第一转动部2023和所述第一翻转条2513转动连接，第一转动部2023和第一翻转条2513之间通过弧形臂接触的方式实现转动连接。第二转动部2024的结构及连接关系与第一转动部2023相同，即第二转动部2024和第二安装板24固定连接，第二转动部2024和第二翻转条2514转动连接。
参阅图16，图中虚线框圈起来的部分表示为第一转动组件202和第二转动组件203。一种实施方式中，第一转动组件202和第二转动组件203的数量均为两个，在折叠装置的长度方向Y上，两个第一转动组件202分别靠近主轴25的两端。两个第二转动组件203位于两个第一转动组件202之间。其中一个第二转动组件203邻近其中一个第一转动组件202，另一个第二转动组件203邻近另一个第一转动组件202。
参阅图17和图18，图18为图17的部分放大图。一种实施方式中，折叠装置在折叠状 态时，在厚度方向Z上，第一门板20A和第二门板20B层叠设置，第一门板20A和第二门板20B之间的空间用于收容电子设备的后壳(第一后壳31和第二后壳32)。可以理解为，在折叠状态下，第一门板20A移动至第一后壳31的内表面的一侧，第二门板20B移动至第二后壳32的内表面的一侧，第一后壳31的外表面和第二后壳32的外表面相对设置，第一后壳31的外表面和第二后壳32的外表面之间可以设有间隙，也可以相互接触。本方案提供的折叠装置的第一门板和第二门板占用的是第一后壳和第二后壳的内部空间，有利于实现折叠装置厚度方向上的小尺寸设计。在宽度方向X上，第一门板20A和第一中框21之间设有第一间隙G1，第二门板20B和第二中框22之间设有第二间隙G2，第一间隙G1和第二间隙G2的设置可以保证在电子设备展平及折叠的过程中，第一门板20A不会与第一中框21碰撞，第二门板20B不会与第二中框22碰撞。
参阅图19和图20，图20为图19的部分放大图。一种实施方式中，在折叠状态和展平状态之间的中间状态下，第一中框21和第二中框22之间形成夹角，部分第一门板20A移动至第一后壳31的内表面的一侧，部分第一门板20A位于第一后壳31的外部未被第一后壳31遮蔽。部分第二门板20B移动至第二后壳32的内表面的一侧，部分第二门板20B位于第二后壳32的外部未被第二后壳32遮蔽。
参阅图20，所述第一门板20A包括邻接的第一部分A1和第二部分A2，所述折叠装置在中间状态时，所述中间状态为所述展平状态和所述折叠状态之间切换过程中的一个状态，所述第一部分A1位于第一后壳31的内表面的一侧，且被第一后壳31遮挡，所述第二部分A2对应第一后壳31的侧边的外侧设置，也就是说，第二部分A2未被第一后壳31遮挡，呈外露状态，此状态下，第二部分A2作为所述电子设备的外观件。所述第一部分A1包括第一主体A11和第一突部A12，所述第一突部A12突出于所述第一主体A11的表面且用于和第一后壳31接触，以使得所述第一主体A11和第一后壳31之间形成间隙，所述第二部分A2连接至所述第一主体A11，第二部分A2朝向第一后壳31的表面和第一主体A11朝向第一后壳31的表面共面，所述折叠装置在折叠状态时，第二部分A2和第一后壳31之间形成间隙。本方案通过第一突部A12和第一后壳31之间接触，而第一门板20A的第二部分A2和第一部分A1除了第一突部的其它部分(第一主体A11)都和第一后壳31之间形成间隙，本方案有利于减小第一门板20A的外表面和第一后壳31的内表面之间的摩擦界面的面积，对于第一门板20A而言，在展平状态下的第一门板20A的外表面在折叠的过程中仍然可以与第一后壳31保持间隙，二者之间不存在摩擦，可以保持第一门板20A的外观面免受磨损。
一种实施方式中，参阅图21，所述第一主体A11和所述第一突部A12的连接处设有凹槽A13，所述凹槽A13内壁设粘性材料A14，第一突部A12和第一后壳31摩擦容易产生碎屑，凹槽A14用于收容碎屑，粘性材料用于吸附碎屑，防止碎屑散落在电子设备的其它位置，影响使用体验感。
参阅图22，所述第一门板20A包括邻接的第一部分A1和第二部分A2，所述折叠装置在中间状态时，所述中间状态为所述展平状态和所述折叠状态之间切换过程中的一个状态，所述第一部分A1和第一后壳31的内表面接触，所述第二部分A2位于第一后壳31的侧边的外侧，也就是说，第二部分A2未被第一后壳31遮挡，呈外露状态，此状态下，第二部分A2作为所述电子设备的外观件。所述折叠装置在折叠状态时，所述第一部分A1和所述第二部分A2均和第一后壳31的内表面接触。本方案通过第一部分A1和所述第二部分A2均和第一后壳31的内表面接触的方案，有利于折叠装置的厚度小型化的设计。
第一门板20A与第一后壳31之间的摩擦系数为低于预设值，可以理解为，本实施方式 通过限定第一门板20A和第一后壳31之间的低摩擦系数，使得折叠装置在开合的过程中，第一门板20A和第一后壳31之间的接触面之间摩擦不会产生明显的划痕，而且第一门板20A相对第一后壳31的移动更顺畅。具体而言，可以在第一门板20A的表面设超滑材料层，例如通过喷涂特氟龙材料形成超滑材料层，也可以在第一后壳31的内表面设置超滑材料层，以使得第一门板20A与第一后壳31之间的摩擦系数为低于预设值。本方案通过将第一门板20A的第一部分A1朝向第一后壳31的表面和第二部分A2朝向第一后壳31的表面共面，即，第一门板20A朝向第一后壳31的表面上不设突出的结构，第一门板20A和第一后壳31直接面接触，这样的设计可以实现折叠装置在厚度方向上的尺寸更小。
参阅图21，一种实施方式中，所述第一门板20A包括第一侧面A3和第一斜面A4，所述第一侧面A3用于对接所述第二门板20B，所述第一斜面A4连接在第一侧面A3和第一门板20A的第一内表面S1之间，所述第一斜面A4用于避让所述主轴25。具体而言，图21中，用矩形框表示主轴25，第一内表面S1和主轴25之间的距离小于第一斜面A4与主轴25之间的距离，第一斜面A4和主轴25之间的距离指的是第一斜面A4的两端(分别为连接至第一内表面S1的一端和远离第一内表面S1的一端)与主轴25之间的距离的平均值。本方案通过第一斜面A4实解决折叠装置开合过程中第一门板20A和主轴25干涉的问题，可以实现第一门板20A和主轴25之间的间隙更小，有利于电子设备薄型化设计。
本文中涉及的第一、第二、第三、第四以及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范围。
应理解，在本申请的各种实施例中，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，而不应对本申请实施例的实施过程构成任何限定。
以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (27)

  1. 一种折叠装置(20)，其特征在于，包括：
    第一安装板(23)、第二安装板(24)和主轴(25)，所述主轴(25)与所述第一安装板(23)转动连接，所述主轴(25)和所述第一安装板(23)之间的转动连接处的转动中心为第一轴(C1)，所述主轴(25)与所述第二安装板(24)转动连接，所述主轴(25)和所述第二安装板(24)之间的转动连接处的转动中心为第二轴(C2)；
    第一门板(20A)和第一转动臂(3A2)，所述第一门板(20A)滑动连接所述第一安装板(23)，所述第一转动臂(3A2)转动连接所述主轴(25)，所述第一转动臂(3A2)和所述主轴(25)之间的转动连接处的转动中心为第三轴(C3)，所述第三轴(C3)和所述第一轴(C1)不共线，所述第一门板(20A)和所述第一转动臂(3A2)活动连接，所述第一转动臂(3A2)相对所述主轴(25)转动的过程中，所述第一门板(20A)相对所述第一安装板(23)滑动；
    第二门板(20B)和第二转动臂(3B2)，所述第二门板(20B)滑动连接至所述第二安装板(24)，所述第二转动臂(3B2)转动连接至所述主轴(25)，所述第二转动臂(3B2)和所述主轴(25)之间的转动连接处的转动中心为第四轴(C4)，所述第四轴(C4)和所述第二轴(C2)不共线，所述第二门板(20B)和所述第二转动臂(3B2)活动连接，所述第二转动臂(3B2)相对所述主轴(25)转动的过程中，所述第二门板(20B)相对所述第二安装板(24)滑动；
    所述折叠装置(20)在展平状态时，所述第一门板(20A)和所述第二门板(20B)对接；
    所述折叠装置(20)在折叠状态时，所述第一门板(20A)和所述第二门板(20B)层叠设置在所述第一安装板(23)和所述第二安装板(24)之间。
  2. 根据权利要求1所述的折叠装置(20)，其特征在于，所述第一门板(20A)包括相对设置的第一内表面(S1)和第一外表面(S2)，所述第一内表面(S1)朝向所述第一转动臂(3B2)，所述第三轴(C3)位于所述第一外表面(S2)或所述第一外表面(S2)远离所述第一内表面(S1)的一侧。
  3. 根据权利要求1或2所述的折叠装置(20)，其特征在于，所述第一转动臂(3A2)和所述第一门板(20A)之间转动连接；或者所述第一转动臂(3A2)和所述第一门板(20A)之间滑动连接。
  4. 根据权利要求1-3任一项所述的折叠装置(20)，其特征在于，所述第一转动臂(3A2)包括第一弧形臂(3A21)，所述第一弧形臂(3A2)和所述主轴(25)配合实现所述第一转动臂(3A2)和所述主轴(25)之间的转动连接，所述第三轴(C3)为所述第一弧形臂(3A2)的弧心。
  5. 根据权利要求1-4任一项所述的折叠装置(20)，其特征在于，还包括第一滑块(3A1)，所述第一门板(20A)通过所述第一滑块(3A1)滑动连接至所述第一安装板(23)，所述第一门板(20A)通过所述第一滑块(3A1)转动连接至所述第一转动臂(3A2)，所述第一门板(20A)和所述第一滑块(3A1)之间为能够拆卸式的连接关系。
  6. 根据权利要求5所述的折叠装置(20)，其特征在于还包括第一固定板(3A3)，所述第一固定板(3A3)固定连接至所述第一滑块(3A1)，所述第一门板(20A)和所述第一固定板(3A3)之间为能够拆卸式的连接关系，所述第一固定板(3A3)的用于连接所述第一门板(20A)的表面的面积大于所述第一滑块(3A1)的朝向所述第一门板(20A)的表面的面积。
  7. 根据权利要求6所述的折叠装置(20)，其特征在于，所述第一固定板(3A3)和所述第一门板(20A)通过磁吸力的作用连接，所述折叠装置(20)在展平状态时，所述第一门板(20A)和所述第二门板(20B)之间通过磁吸力对接。
  8. 根据权利要求5所述的折叠装置(20)，其特征在于，所述第一滑块(3A1)包括滑动配合部(3A11)、门板固定部(3A12)和转动连接部(3A13)，所述滑动配合部(3A11)用于与所述第一安装板(23)滑动配合，所述滑动配合部(3A11)呈平板状。
  9. 根据权利要求1-8任一项所述的折叠装置(20)，其特征在于，所述折叠装置(20)在折叠状态时，所述第一门板(20A)和所述第二门板(20B)层叠设置，所述电子设备的后壳的至少部分收纳于所述第一门板(20A)和所述第二门板(20B)之间的空间。
  10. 根据权利要求9所述的折叠装置(20)，其特征在于，所述第一门板(20A)包括邻接的第一部分(A1)和第二部分(A2)，所述折叠装置(20)在中间状态时，所述中间状态为所述展平状态和所述折叠状态之间切换过程中的一个状态，所述第一部分(A1)位于所述后壳的内表面的一侧，所述第二部分(A2)对应所述后壳(31)的侧边的外侧设置，所述第一部分(A1)包括第一主体(A11)和第一突部(A12)，所述第一突部(A12)突出于所述第一主体(A11)的表面且用于和所述后壳(31)接触，以使得所述第一主体(A11)和所述后壳(31)之间形成间隙，所述第二部分(A2)连接至所述第一主体(A11)，所述折叠装置(20)在折叠状态时，所述第二部分(A2)位于所述后壳(31)的内表面的一侧且和所述后壳(31)之间形成间隙。
  11. 根据权利要求10所述的折叠装置(20)，其特征在于，所述第一主体(A11)和所述第一突部(A12)的连接处设有凹槽(A13)，所述凹槽(A13)内壁设粘性材料(A14)。
  12. 根据权利要求9所述的折叠装置(20)，其特征在于，所述第一门板(20A)包括邻接的第一部分(A1)和第二部分(A2)，所述折叠装置(20)在中间状态时，所述中间状态为所述展平状态和所述折叠状态之间切换过程中的一个状态，所述第一部分(A1)和所述电子设备的所述后壳(31)的内表面接触，所述第二部分(A2)位于所述后壳(31)的侧边的外侧，所述折叠装置(20)在折叠状态时，所述第一部分(A1)和所述第二部分(A2)均和所述后壳(31)的内表面接触。
  13. 根据权利要求1-12任一项所述的折叠装置(20)，其特征在于，所述第一门板(20A)包括第一侧面(A3)和第一斜面(A4)，所述第一侧面(A3)用于对接所述第二门板(20B)，所述第一斜面(A4)连接在第一侧面(A3)和第一门板(20A)的第一内表面(S1)之间，所述折叠装置(20)在展平状态时，所述第一斜面(A4)和所述主轴(25)之间的距离大于所述第一内表面(S1)和所述主轴(25)之间的距离。
  14. 一种电子设备，其特征在于，包括柔性显示屏(10)、后壳(30)和折叠装置(20)，所述柔性显示屏(10)和所述后壳(30)分别组装于所述折叠装置(20)的相对的两侧，所述折叠装置(20)包括：
    第一安装板(23)、第二安装板(24)和主轴(25)，所述主轴(25)与所述第一安装板(23)转动连接且二者之间相对转动的中心轴为第一轴(C1)，所述主轴(25)与所述第二安装板(24)转动连接且二者之间相对转动的中心轴为第二轴(C2)；
    第一门板(20A)和第一转动臂(3A2)，所述第一门板(20A)滑动连接所述第一安装板(23)，所述第一转动臂(3A2)和所述主轴(25)转动连接且二者之间相对转动的中心轴为第三轴(C3)，所述第三轴(C3)和所述第一轴(C1)不共线，所述第一门板(20A)和所述第一转动臂(3A2)活动连接，所述第一转动臂(3A2)相对所述主轴(25)转动的过程中，所述第一门板(20A)相对所述第一安装板(23)滑动；
    第二门板(20B)和第二转动臂(3B2)，所述第二门板(20B)滑动连接至所述第二安装板(24)，所述第二转动臂(3B2)和所述主轴(25)转动连接且二者之间相对转动的中心轴为第四轴 (C4)，所述第四轴(C4)和所述第二轴(C2)不共线，所述第二门板(20B)和所述第二转动臂(3B2)活动连接，所述第二转动臂(3B2)相对所述主轴(25)转动的过程中，所述第二门板(20B)相对所述第二安装板(24)滑动；
    所述折叠装置(20)在展平状态时，所述第一门板(20A)和所述第二门板(20B)对接；
    所述折叠装置(20)在折叠状态时，所述第一门板(20A)和所述第二门板(20B)层叠设置在所述第一安装板(23)和所述第二安装板(24)之间，所述柔性显示屏(10)位于所述折叠装置(20)的外侧。
  15. 根据权利要求1所述的电子设备，其特征在于，所述第一门板(20A)包括相对设置的第一内表面(S1)和第一外表面(S2)，所述第一内表面(S1)朝向所述第一转动臂(3B2)，所述第三轴(C3)位于所述第一外表面(S2)或所述第一外表面(S2)远离所述第一内表面(S1)的一侧。
  16. 根据权利要求14或15所述的电子设备，其特征在于，所述第一转动臂(3A2)和所述第一门板(20A)之间转动连接；或者所述第一转动臂(3A2)和所述第一门板(20A)之间滑动连接。
  17. 根据权利要求14-16任一项所述的电子设备，其特征在于，所述第一转动臂(3A2)包括第一弧形臂(3A21)，所述第一弧形臂(3A2)和所述主轴(25)配合实现所述第一转动臂(3A2)和所述主轴(25)之间的转动连接，所述第三轴(C3)为所述第一弧形臂(3A2)的弧心。
  18. 根据权利要求14-17任一项所述的电子设备，其特征在于，还包括第一滑块(3A1)，所述第一门板(20A)通过所述第一滑块(3A1)滑动连接至所述第一安装板(23)，所述第一门板(20A)通过所述第一滑块(3A1)转动连接至所述第一转动臂(3A2)，所述第一门板(20A)和所述第一滑块(3A1)之间为能够拆卸式的连接关系。
  19. 根据权利要求18所述的电子设备，其特征在于还包括第一固定板(3A3)，所述第一固定板(3A3)固定连接至所述第一滑块(3A1)，所述第一门板(20A)和所述第一固定板(3A3)之间为能够拆卸式的连接关系，所述第一固定板(3A3)的用于连接所述第一门板(20A)的表面的面积大于所述第一滑块(3A1)的朝向所述第一门板(20A)的表面的面积。
  20. 根据权利要求19所述的电子设备，其特征在于，所述第一固定板(3A3)和所述第一门板(20A)通过磁吸力的作用连接，所述折叠装置(20)在展平状态时，所述第一门板(20A)和所述第二门板(20B)之间通过磁吸力对接。
  21. 根据权利要求18所述的电子设备，其特征在于，所述第一滑块(3A1)包括滑动配合部(3A11)、门板固定部(3A12)和转动连接部(3A13)，所述滑动配合部(3A11)用于与所述第一安装板(23)滑动配合，所述滑动配合部(3A11)呈平板状。
  22. 根据权利要求14-21任一项所述的电子设备，其特征在于，所述折叠装置(20)在折叠状态时，所述第一门板(20A)和所述第二门板(20B)层叠设置，所述电子设备的后壳的至少部分收纳于所述第一门板(20A)和所述第二门板(20B)之间的空间。
  23. 根据权利要求22所述的电子设备，其特征在于，所述第一门板(20A)包括邻接的第一部分(A1)和第二部分(A2)，所述折叠装置(20)在中间状态时，所述中间状态为所述展平状态和所述折叠状态之间切换过程中的一个状态，所述第一部分(A1)位于所述后壳的内表面的一侧，所述第二部分(A2)对应所述后壳(31)的侧边的外侧设置，所述第一部分(A1)包括第一主体(A11)和第一突部(A12)，所述第一突部(A12)突出于所述第一主体(A11)的表面且用于和所述后壳(31)接触，以使得所述第一主体(A11)和所述后壳(31)之间形成间隙，所述第二部分(A2)连接至所述第一主体(A11)，所述折叠装置(20)在折叠状态时，所述第二部分(A2)位于所述后壳(31)的内表面的一侧且和所述后壳(31)之 间形成间隙。
  24. 根据权利要求23所述的电子设备，其特征在于，所述第一主体(A11)和所述第一突部(A12)的连接处设有凹槽(A13)，所述凹槽(A13)内壁设粘性材料(A14)。
  25. 根据权利要求9所述的电子设备，其特征在于，所述第一门板(20A)包括邻接的第一部分(A1)和第二部分(A2)，所述折叠装置(20)在中间状态时，所述中间状态为所述展平状态和所述折叠状态之间切换过程中的一个状态，所述第一部分(A1)和所述电子设备的所述后壳(31)的内表面接触，所述第二部分(A2)位于所述后壳(31的侧边的外侧，所述折叠装置(20)在折叠状态时，所述第一部分(A1)和所述第二部分(A2)均和所述后壳(31)的内表面接触。
  26. 根据权利要求14-25任一项所述的电子设备，其特征在于，所述第一门板(20A)包括第一侧面(A3)和第一斜面(A4)，所述第一侧面(A3)用于对接所述第二门板(20B)，所述第一斜面(A4)连接在第一侧面(A3)和第一门板(20A)的第一内表面(S1)之间，所述折叠装置(20)在展平状态时，所述第一斜面(A4)和所述主轴(25)之间的距离大于所述第一内表面(S1)和所述主轴(25)之间的距离。
  27. 根据权利要求14-26任一项所述的电子设备，其特征在于，所述折叠装置(20)包括框架组件(201)，所述框架组件(201)包括第一中框(21)、第二中框(22)、所述第一安装板(23)和所述第二安装板(24)和所述主轴(25)，所述第一中框(21)位于所述第一安装板(23)远离所述主轴(25)的一侧且固定连接所述第一安装板(23)，所述第二中框(22)位于所述第二安装板(24)远离所述主轴(25)的一侧且固定连接至所述第二安装板(24)，所述第一中框(21)和所述第二中框(22)的一侧连接所述柔性显示屏(10)，另一侧连接所述后壳(30)。
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CN113194183A (zh) * 2021-05-21 2021-07-30 维沃移动通信有限公司 折叠机构及电子设备
CN216111711U (zh) * 2021-08-20 2022-03-22 成都拓米电子装备制造有限公司 一种适用于360°折叠铰链的铰链传动装置

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