WO2023185167A1 - 可折叠机构和可折叠终端 - Google Patents

可折叠机构和可折叠终端 Download PDF

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Publication number
WO2023185167A1
WO2023185167A1 PCT/CN2022/143394 CN2022143394W WO2023185167A1 WO 2023185167 A1 WO2023185167 A1 WO 2023185167A1 CN 2022143394 W CN2022143394 W CN 2022143394W WO 2023185167 A1 WO2023185167 A1 WO 2023185167A1
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WO
WIPO (PCT)
Prior art keywords
swing arm
pressure plate
groove
foldable
base
Prior art date
Application number
PCT/CN2022/143394
Other languages
English (en)
French (fr)
Other versions
WO2023185167A9 (zh
Inventor
董绍洪
陈贵敏
陈瑞豪
金开放
董长富
Original Assignee
荣耀终端有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 荣耀终端有限公司 filed Critical 荣耀终端有限公司
Priority to EP22871061.2A priority Critical patent/EP4280829A4/en
Publication of WO2023185167A1 publication Critical patent/WO2023185167A1/zh
Publication of WO2023185167A9 publication Critical patent/WO2023185167A9/zh

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • 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
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • 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
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681—Details related solely to hinges
    • 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
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
    • H04M1/022—The hinge comprising two parallel pivoting axes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0017—Casings, cabinets or drawers for electric apparatus with operator interface units
    • 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
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel

Definitions

  • the present application relates to the field of foldable terminals, and in particular, to a foldable mechanism and a foldable terminal.
  • foldable terminals are favored by users because of their large screens and easy portability.
  • foldable terminals often use foldable mechanisms to achieve folding and unfolding.
  • existing foldable mechanisms often require a large number of parts to achieve folding and unfolding, resulting in a complex structure of the foldable mechanism, which is not conducive to the lightweight design of foldable terminals.
  • the present application provides a foldable mechanism and a foldable terminal, which can simplify the structure of the foldable mechanism and achieve a lightweight design of the foldable terminal.
  • this application provides a foldable mechanism, including a base, a pressure plate assembly and a flexible support plate.
  • the pressure plate assembly is installed on the base, and the flexible support plate is installed on the pressure plate assembly.
  • the pressure plate assembly includes a first pressure plate swing arm, and the rotating portion of the first pressure plate swing arm is rotationally connected to the base to realize the rotational connection between the first pressure plate swing arm and the base.
  • the flexible support plate is installed on the first pressure plate swing arm and can be bent under the driving of the first pressure plate swing arm. The bending direction of the flexible support plate is parallel to the rotation center of the first pressure plate swing arm relative to the base.
  • the flexible support plate is directly installed on the first pressure plate swing arm, without using a spring to install the flexible support plate on the base.
  • the assembly process is conducive to improving the assembly accuracy of the foldable mechanism, and also simplifies the structure of the foldable mechanism, making the structure of the foldable mechanism simple.
  • the foldable mechanism is applied to a foldable terminal, it is beneficial to achieve a lightweight design of the foldable terminal.
  • the local thickness of the flexible support plate can be made very thin, which also helps achieve a thin and light design of the foldable mechanism.
  • first pressure plate swing arms there are four first pressure plate swing arms, and the four first pressure plate swing arms are spaced apart from each other to ensure assembly stability between the pressure plate assembly and the base.
  • the rotating portion of the first pressure plate swing arm is slidably and rotationally connected to the base, so as to realize the sliding and rotational connection between the first pressure plate swing arm and the base.
  • the first pressure plate swing arm rotates relative to the base, it will generate relative displacement with the base.
  • the displacement generated by the first pressure plate swing arm matches the dimensional change caused by the bending of the flexible support plate to ensure that the flexible support plate is flat and avoids The flexible support plate develops wrinkles.
  • the pressure plate assembly of the foldable mechanism further includes a second pressure plate swing arm, and the rotating portion of the second pressure plate swing arm is rotationally connected to the base to achieve a rotational connection between the second pressure plate swing arm and the base.
  • the flexible support plate is also installed on the second pressure plate swing arm and can be bent under the drive of the second pressure plate swing arm. Therefore, the bending direction of the flexible support plate is also parallel to the rotation center of the second pressure plate swing arm relative to the base.
  • the flexible support plate is directly installed on the first pressure plate swing arm and the second pressure plate swing arm. There is no need to use a spring to install the flexible support plate on the base, which simplifies the number of components of the foldable mechanism. It not only simplifies the assembly process of the foldable mechanism and helps improve the assembly accuracy of the foldable mechanism, but also simplifies the structure of the foldable mechanism, making the structure of the foldable mechanism simple.
  • the foldable mechanism is applied to a foldable terminal, it is beneficial to achieve a lightweight design of the foldable terminal.
  • the rotating portion of the second pressure plate swing arm is slidably and rotationally connected to the base to achieve a sliding and rotational connection between the second pressure plate swing arm and the base.
  • the second pressure plate swing arm rotates relative to the base, it will displace with the base.
  • the displacement generated by the second pressure plate swing arm matches the dimensional change caused by the bending of the flexible support plate to ensure that the flexible support plate is flat and avoids flexibility.
  • the support plate is wrinkled.
  • the connecting portion of the first pressure plate swing arm is provided with an assembly hole.
  • the connecting portion of the second pressure plate swing arm is provided with an assembly hole.
  • the flexible support plate includes a flexible support part, a first fixing part and a second fixing part.
  • the flexible support part is provided with a plurality of strip grooves, and the plurality of strip grooves are arranged in parallel and at intervals.
  • the extension direction of each strip groove is parallel to the bending direction of the flexible support plate to ensure the flexibility of the flexible support plate.
  • the first fixed part and the second fixed part are both fixedly connected to the bottom surface of the flexible support part.
  • the first fixed part is installed in the assembly hole of the first pressure plate swing arm, and the second fixed part is installed in the assembly hole of the second pressure plate swing arm. Realize the assembly between the flexible support plate and the pressure plate assembly.
  • the openings of the plurality of strip grooves are located on the bottom surface of the flexible support plate to ensure the integrity of the top surface of the flexible support plate.
  • the strip groove is recessed from the bottom surface of the flexible support plate in a direction away from the top surface, and penetrates the front end surface and the rear end surface of the flexible support plate. Wherein, the strip groove is spaced apart from both the first fixing part and the second fixing part.
  • the pressure plate assembly of the foldable mechanism further includes a first pressure plate and a second pressure plate.
  • the first pressure plate is slidably connected to the sliding portion of the first pressure plate swing arm to achieve a sliding connection between the first pressure plate and the first pressure plate swing arm.
  • the second pressure plate is slidably connected to the sliding portion of the second pressure plate swing arm to achieve a sliding connection between the second pressure plate and the second pressure plate swing arm.
  • the first pressure plate and the second pressure plate are located on opposite sides of the base respectively.
  • the top surfaces of the first pressure plate, the top surface of the second pressure plate and the top surface of the flexible support plate are flush and common. form a supporting surface.
  • the support surface can support the foldable part of the display screen, which not only ensures good display of the display screen, but also prevents the foldable part from being easily damaged by external force when the foldable part is touched. Or pits to improve the reliability of the display.
  • the flexible support plate since the flexible support plate has no opening design, the top surface of the flexible support plate is a complete plane, making the support surface larger, which can better support the foldable part and improve the support effect of the flexible support plate on the foldable part. .
  • the foldable mechanism further includes a connecting component, and the connecting component is installed on the base.
  • the connection assembly includes a first fixing frame and a second fixing frame.
  • the first fixed frame is slidably and rotationally connected to the first pressure plate.
  • the second fixed frame is slidably and rotationally connected to the second pressure plate.
  • the first fixing frame, the second fixing frame, the first pressing plate, the second pressing plate and the flexible support plate form an avoidance space, and the avoidance space is in the shape of a water drop.
  • the avoidance space can avoid the R angle formed when the foldable part is bent, so that the foldable part does not have a large bend and avoids undesirable phenomena such as creases on the display screen, which is helpful Extend the life of your display.
  • the base is provided with an escape groove.
  • the escape groove is used to avoid the bottom of the flexible support plate, which can avoid interference between the base and the flexible support plate, so as to facilitate the formation of water droplets. shaped avoidance space.
  • connection assembly further includes a first main swing arm and a second main swing arm.
  • the rotating part of the first main swing arm is rotationally connected to the first fixed frame to realize the rotational connection between the first main swing arm and the first fixed frame.
  • the sliding part of the first main swing arm is slidably and rotationally connected to the base to achieve a sliding and rotational connection between the first main swing arm and the base.
  • the rotating part of the second main swing arm is rotationally connected to the second fixed frame to realize the rotational connection between the second main swing arm and the second fixed frame.
  • the sliding part of the second main swing arm is slidably and rotationally connected to the base to achieve a sliding and rotational connection between the second main swing arm and the base.
  • the flexible support part is further provided with a first relief groove and a second relief groove, and the openings of the first relief groove and the second relief groove are located on the bottom surface of the flexible support part.
  • the first escape groove is used to avoid the sliding part of the first main swing arm
  • the second escape groove is used to avoid the sliding part of the second main swing arm, so as to avoid the first main swing arm and the second main swing arm.
  • Interference occurs between the two main swing arms and the flexible support plate, so that the flexible support portion will not be resisted by the first main swing arm and the second main swing arm and protrude relative to the top surface of the first pressure plate and the top surface of the second pressure plate. , ensure that the top surface of the flexible support plate is flush with the top surface of the first pressure plate and the top surface of the second pressure plate.
  • first relief groove and the second relief groove are both connected to one or more strip grooves.
  • connection component of the foldable mechanism further includes a first auxiliary swing arm and a second auxiliary swing arm.
  • the sliding part of the first auxiliary swing arm is slidably connected to the first fixed frame to realize the sliding connection between the first auxiliary swing arm and the first fixed frame.
  • the rotating part of the first auxiliary swing arm is rotationally connected to the base to realize the rotational connection between the first auxiliary swing arm and the base.
  • the sliding portion of the second auxiliary swing arm is slidably connected to the second fixed frame to achieve a sliding connection between the second auxiliary swing arm and the second fixed frame.
  • the rotating part of the second auxiliary swing arm is rotationally connected to the base to realize the rotational connection between the second auxiliary swing arm and the base.
  • the flexible support part is further provided with a third relief groove and a fourth relief groove, and the openings of the third relief groove and the fourth relief groove are located on the bottom surface of the flexible support part.
  • the third escape groove is used to avoid the rotating part of the first auxiliary swing arm
  • the fourth escape groove is used to avoid the rotating part of the second auxiliary swing arm, so as to avoid the first auxiliary swing arm and the second auxiliary swing arm.
  • Interference occurs between the second auxiliary swing arm and the flexible support plate, so that the flexible support portion will not be resisted by the first auxiliary swing arm and the second auxiliary swing arm and protrude relative to the top surface of the first pressure plate and the top surface of the second pressure plate. , ensure that the top surface of the flexible support plate is flush with the top surface of the first pressure plate and the top surface of the second pressure plate.
  • the third relief groove and the fourth relief groove are both connected to one or more strip grooves.
  • the foldable mechanism further includes a damping component, and the damping component is installed on the connecting component.
  • the damping component can provide damping force when the connecting component is folded or unfolded relative to the base.
  • the damping assembly includes a first damping component and a second damping component.
  • the first damping member is installed on the first fixed frame and fixedly connected to the first auxiliary swing arm, and can slide relative to the first fixed frame driven by the first auxiliary swing arm.
  • the second damping member is installed on the second fixed frame and is fixedly connected to the second auxiliary swing arm, and can slide relative to the second fixed frame driven by the second auxiliary swing arm.
  • the foldable mechanism When the foldable mechanism is applied to a foldable terminal, when the user is using the foldable terminal, for example, when the foldable terminal is in a folded state or a flat state, and when the foldable terminal switches between a folded state and an unfolded state, the user can obviously By feeling the damping force provided by the damping component, the user can experience a better hand feel and improve the user experience.
  • the foldable mechanism further includes a synchronizing component, which is installed on the base and slidably connected to the connecting component.
  • the synchronization component slides to connect the first auxiliary swing arm and the second auxiliary swing arm, so that the first auxiliary swing arm and the second auxiliary swing arm rotate synchronously relative to the base.
  • the rotating part of the first auxiliary swing arm is provided with a first spiral groove
  • the rotating part of the second auxiliary swing arm is provided with a second spiral groove
  • the synchronization component of the foldable mechanism includes a fixed column and a synchronized slide block.
  • the fixed column is installed on the base, and the synchronized slide block is slidingly connected to the fixed column.
  • the first cam of the synchronizing slide block is installed in the first spiral groove and can slide relative to the rotating part of the first auxiliary swing arm in the first spiral groove.
  • the second cam of the synchronizing slide block is installed in the second spiral groove and can slide relative to the rotating part of the second auxiliary swing arm in the second spiral groove.
  • the first cam slides relative to the rotating part of the first auxiliary swing arm in the first spiral groove to drive the synchronization slide block to slide relative to the fixed column, driving the second cam to slide in the second spiral groove
  • the inner part slides relative to the rotating part of the second auxiliary swing arm, thereby driving the second auxiliary swing arm to rotate relative to the base, thereby achieving synchronous rotation between the first auxiliary swing arm and the second auxiliary swing arm.
  • the synchronization component can drive the first auxiliary swing arm to rotate relative to the base, thereby achieving synchronous rotation between the first auxiliary swing arm and the second auxiliary swing arm.
  • the base is an integrally formed structural member, which can improve the overall strength of the base and ensure the structural stability of the base.
  • the base shown in this application does not require the use of screws or fasteners such as screws to assemble the bracket and the shaft cover. This not only facilitates the assembly of the foldable mechanism, but also improves the assembly of the base. It also simplifies the number of parts of the foldable mechanism, which is conducive to the lightweight design of foldable terminals.
  • the base is provided with a first fitting groove, and the first fitting groove is an arc-shaped groove.
  • the rotating part of the first pressure plate swing arm is in the shape of an arc plate.
  • the rotating part of the first pressure plate swing arm is installed in the first matching groove and can slide and rotate relative to the base in the first sliding groove.
  • the base is an integrally formed structural member, the first fitting groove does not need to be formed by matching the shaft cover and the bracket.
  • the thickness between the first fitting groove and the rotating part of the first pressure plate swing arm The sum is small, which can save the space occupied by the foldable mechanism, and is conducive to achieving a lightweight and thin design of the foldable mechanism.
  • the base is provided with a second fitting groove
  • the rotating part of the second pressure plate swing arm is in the shape of an arc plate.
  • the rotating part of the second pressure plate swing arm is installed in the second fitting groove and can be mounted on the second fitting groove. Slides and rotates in the groove.
  • the present application provides a foldable terminal, including a first housing, a second housing, and any of the above folding mechanisms, and the folding mechanism is connected between the first housing and the second housing.
  • the flexible support plate is directly installed on the first pressure plate swing arm, without using a spring to install the flexible support plate on the base, which simplifies the number of components of the foldable mechanism. It not only simplifies the assembly process of the foldable mechanism and helps to improve the assembly accuracy of the foldable mechanism, but also simplifies the structure of the foldable mechanism, making the structure of the foldable mechanism simple and conducive to realizing the lightweight design of the foldable terminal. Moreover, the local thickness of the flexible support plate can be made very thin, which also helps achieve a thin and light design of the foldable terminal.
  • the foldable terminal further includes a display screen.
  • the display screen includes a first display part, a second display part and a foldable part.
  • the foldable part is connected between the first display part and the second display part.
  • the first display part is installed on the first housing, the second display part is installed on the second housing, and the foldable part is arranged opposite to the foldable mechanism.
  • the top surface of the flexible support plate supports the foldable part.
  • the first pressure plate and the second pressure plate are respectively located on opposite sides of the base.
  • the top surface of the first pressure plate, the top surface of the second pressure plate and the top surface of the flexible support plate are flush and together form a support surface to support the flexible support plate. Folded section.
  • the support surface can support the foldable part of the display screen, which not only ensures good display of the display screen, but also prevents the foldable part from being damaged or dented due to external force when the foldable part is touched, improving the reliability of the display screen. sex. Moreover, since the flexible support plate has no opening design, the top surface of the flexible support plate is a complete plane, making the support surface larger, which can better support the foldable part and improve the support effect of the flexible support plate on the foldable part. .
  • the foldable terminal when the foldable terminal is in a folded state, the foldable part is received in the avoidance space of the foldable mechanism.
  • the first fixed frame, the second fixed frame, the first pressure plate, the second pressure plate and the flexible support plate form an avoidance space, and the avoidance space is in the shape of a water drop.
  • the drop-shaped avoidance space can avoid the R-angle formed when the foldable part is bent, so that the foldable part will not bend significantly, avoiding undesirable phenomena such as creases on the display, and helping to extend the service life of the display.
  • Figure 1 is a schematic structural diagram of a foldable terminal in one state provided by an embodiment of the present application
  • Figure 2 is a schematic structural diagram of the foldable terminal shown in Figure 1 in the second state
  • Figure 3 is an exploded structural diagram of the foldable terminal shown in Figure 2;
  • Figure 4 is an exploded structural diagram of the foldable device in the foldable terminal shown in Figure 3;
  • Figure 5 is a schematic structural diagram of the foldable mechanism in the foldable device shown in Figure 4;
  • Figure 6 is an exploded structural schematic diagram of the foldable mechanism shown in Figure 5;
  • Figure 7 is a schematic structural diagram of the base in the foldable mechanism shown in Figure 6;
  • Figure 8 is a schematic structural diagram of the first part of the base shown in Figure 7;
  • Figure 9 is a schematic structural diagram of the second part of the base shown in Figure 7;
  • Figure 10 is a schematic structural diagram of the third part of the base shown in Figure 7;
  • Figure 11 is a schematic structural diagram of the first connection component, the first damping component and the first synchronization component in the foldable mechanism shown in Figure 6;
  • Figure 12 is a schematic structural view of the first connection component, the first damping component and the first synchronization component shown in Figure 11 from another angle;
  • Figure 13 is a schematic structural diagram of the second connection component, the second damping component and the second synchronization component in the foldable mechanism shown in Figure 6;
  • Figure 14 is a schematic structural view of the second connection component, the second damping component and the second synchronization component shown in Figure 13 from another angle;
  • Figure 15 is a schematic structural diagram of the third connection component in the foldable mechanism shown in Figure 6;
  • Figure 16 is a schematic structural view of the third connection component shown in Figure 15 from another angle;
  • Figure 17 is a schematic structural diagram of the pressure plate assembly in the foldable mechanism shown in Figure 6;
  • Figure 18 is a schematic structural view of the pressure plate assembly shown in Figure 17 from another angle;
  • Figure 19 is a schematic structural diagram of the support plate in the foldable mechanism shown in Figure 6;
  • Figure 20 is a schematic structural view of the support plate shown in Figure 19 from another angle;
  • Figure 21 is a schematic cross-sectional structural diagram of the foldable mechanism shown in Figure 5 taken along I-I;
  • Figure 22 is a schematic structural diagram of the foldable mechanism shown in Figure 21 in a folded state
  • Figure 23 is a partial cross-sectional structural diagram of the foldable terminal shown in Figure 2;
  • FIG. 24 is a schematic structural diagram of the foldable terminal shown in FIG. 23 in a folded state.
  • Figure 1 is a schematic structural diagram of a foldable terminal 1000 in one state provided by an embodiment of the present application.
  • Figure 2 is a schematic structural diagram of the foldable terminal 1000 shown in Figure 1 in a second state. Schematic.
  • the foldable terminal 1000 may be a foldable electronic product such as a mobile phone, a tablet computer, a personal computer, a multimedia player, an e-book reader, a notebook computer, a vehicle-mounted device or a wearable device.
  • the foldable terminal 1000 is a foldable mobile phone. That is, the foldable terminal 1000 is a mobile phone that can be switched between a folded state and an unfolded state.
  • the length direction of the foldable terminal 1000 is defined as the X-axis direction
  • the length direction of the foldable terminal 1000 is the Y-axis direction
  • the thickness direction of the foldable terminal 1000 is defined as the Z-axis direction.
  • the axis direction and the Z-axis direction are perpendicular to each other.
  • Deviation can be either approximately parallel or approximately vertical. For example, if A and B are parallel, it means that A and B are parallel or nearly parallel, and the angle between A and B can be between 0 degrees and 10 degrees. For example, if A and B are perpendicular, it means that A and B are perpendicular or nearly perpendicular. The angle between A and B can be between 80 degrees and 100 degrees.
  • the extension direction of the rotation axis of the foldable terminal 1000 is the Y-axis direction. That is, the foldable terminal 1000 can be relatively unfolded or folded around the Y-axis direction.
  • the foldable terminal 1000 shown in FIG. 1 is in a folded state, the size of the foldable terminal 1000 along the X-axis direction is small, and the foldable terminal 1000 is easy to carry.
  • the foldable terminal 1000 shown in FIG. 2 is in an expanded state.
  • the foldable terminal 1000 has a larger size along the X-axis direction, and the foldable terminal 1000 has a larger display area.
  • the unfolding angle ⁇ of the foldable terminal 1000 shown in FIG. 2 is 180 degrees. That is, the foldable terminal 1000 shown in FIG. 2 is in a flat state.
  • the foldable terminal 1000 shown in the embodiment of the present application is a terminal that can be folded once.
  • the foldable terminal 1000 may also be a terminal that can be folded multiple times (more than twice).
  • the foldable terminal 1000 may include multiple parts. Two adjacent parts may be folded relatively close to the foldable terminal 1000 until the foldable terminal 1000 is in the folded state. The two adjacent parts may also be unfolded relatively far apart until the foldable terminal 1000 is in the unfolded state.
  • FIG. 3 is an exploded structural diagram of the foldable terminal 1000 shown in FIG. 2 .
  • the foldable terminal 1000 includes a foldable device 100 and a display screen 200.
  • the display screen 200 is installed on the foldable device 100.
  • the display screen 200 includes a display surface (not labeled) facing away from the foldable device 100, and the display surface is used to display information such as text, images, or videos.
  • the display screen 200 includes a first display part 210, a second display part 220 and a foldable part 230.
  • the foldable part 230 is connected between the first display part 210 and the second display part 220. Wherein, the foldable portion 230 can be bent around the Y-axis direction.
  • the foldable terminal 1000 when the foldable terminal 1000 is in a folded state, the first display part 210 and the second display part 220 are arranged oppositely, and the foldable part 230 is bent. At this time, the display screen 200 is in a folded state, and the exposed area of the display screen 200 is relatively small, which can greatly reduce the probability of the display screen 200 being damaged and achieve effective protection of the display screen 200 .
  • FIG. 2 when the foldable terminal 1000 is in the unfolded state, the first display part 210 and the second display part 220 are relatively unfolded, and the foldable part 230 is flat without bending.
  • the angles between the first display part 210 , the second display part 220 and the foldable part 230 are all ⁇ , and the display screen 200 has a large display area, realizing a large-screen display of the foldable terminal 1000 and improving the user experience. usage experience.
  • the foldable terminal 1000 shown in the embodiment of the present application is folded inwardly, and the display screen 200 of the foldable terminal 1000 in the folded state is located inside the foldable device 100 .
  • the foldable terminal 1000 can also be folded in an outward folding manner. At this time, the display 200 of the foldable terminal 1000 in the folded state is located outside the foldable device 100 .
  • FIG. 4 is an exploded structural diagram of the foldable device 100 in the foldable terminal 1000 shown in FIG. 3 .
  • the foldable device 100 includes a first housing 110, a second housing 120, and a foldable mechanism 130.
  • the foldable mechanism 130 is connected between the first housing 110 and the second housing 120 to achieve the first operation.
  • the first housing 110 carries the first display part 210
  • the second housing 120 carries the second display part 220 .
  • the first display part 210 is installed on the first housing 110
  • the second display part 220 is installed on the second housing 120 .
  • the foldable mechanism 130 is arranged opposite to the foldable part 230 .
  • the first housing 110 and the second housing 120 can rotate relative to each other through the foldable mechanism 130, so that the foldable device 100 can be switched between a folded state and an unfolded state.
  • the first housing 110 and the second housing 120 can rotate relative to each other so that the foldable device 100 is in a folded state, as shown in FIG. 1 .
  • the foldable mechanism 130 is in a folded state.
  • the first housing 110 and the second housing 120 can also rotate relative to each other to expand relative to each other, so that the foldable device 100 is in an expanded state, as shown in FIG. 2 .
  • the foldable mechanism 130 is in an unfolded state.
  • the foldable terminal 1000 shown in FIG. 2 is in a flat state, and the angle between the first housing 110 and the second housing 120 is ⁇ .
  • the foldable mechanism 130 is in a flat state.
  • the first housing 110 is provided with a first receiving groove 1101 , and the first receiving groove 1101 is located on a side of the first housing 110 facing the second housing 120 .
  • the opening of the first receiving groove 1101 is located on the top surface of the first housing 110 .
  • the first receiving groove 1101 is recessed from the top to the bottom of the first housing 110 and penetrates the right side of the first housing 110 .
  • the second housing 120 and the first housing 110 have the same structure and are mirror symmetrical with respect to the foldable mechanism 130 .
  • the second housing 120 is provided with a second receiving groove 1201 , and the second receiving groove 1201 is located on a side of the second housing 120 facing the first housing 110 .
  • the opening of the second receiving groove 1201 is located on the top surface of the second housing 120 .
  • the second receiving groove 1201 is recessed from the top to the bottom of the second housing 120 and penetrates the side of the second housing 120 toward the first housing 110 .
  • the first receiving groove 1101 and the second receiving groove 1201 enclose a receiving space 1301 .
  • the foldable mechanism 130 is installed in the receiving space 1301.
  • the partial foldable mechanism 130 is installed in the first receiving groove 1101 of the first housing 110
  • the partial foldable mechanism 130 is installed in the second receiving groove 1201 of the second housing 120 .
  • top”, “bottom”, “left”, “right”, “front” and “rear” used when describing the foldable terminal 1000 are mainly based on the terms of the foldable terminal 1000.
  • the direction facing the positive direction of the Z-axis is called “top”
  • the direction facing the negative direction of the Z-axis is called the “bottom”
  • the direction facing the positive direction of the X-axis is called the "right”
  • the direction facing the negative direction of the X-axis is called “right”.
  • direction toward the positive Y-axis is "back”
  • direction toward the negative direction along the Y-axis is "front”, which does not form a limitation on the orientation of the foldable terminal 1000 in actual application scenarios.
  • FIG. 5 is a schematic structural diagram of the foldable mechanism 130 in the foldable device 100 shown in FIG. 4 .
  • FIG. 6 is an exploded structural diagram of the foldable mechanism 130 shown in FIG. 5 .
  • the foldable mechanism 130 includes a base 10 , a connection component 20 , a damping component 30 , a pressure plate component 40 and a flexible support plate 50 .
  • the connecting component 20 and the pressure plate component 40 are both installed on the base 10, and can be folded or unfolded relative to the base 10, so that they can be converted between the folded state and the unfolded state.
  • the damping component 30 is installed on the connecting component 20, and can be folded or unfolded relative to the base 10 driven by the connecting component 20, so that it can be converted between the folded state and the unfolded state.
  • the flexible support plate 50 is installed on the pressure plate assembly 40 and can be relatively folded or relatively unfolded under the driving of the pressure plate assembly 40, so that it can be converted between the folded state and the unfolded state.
  • the base 10 extends along the Y-axis direction.
  • connection components 20 there are three connecting components 20 , and the three connecting components 20 are spaced apart from each other along the Y-axis direction.
  • the three connection components 20 are respectively a first connection component 20a, a second connection component 20b and a third connection component 20c.
  • the third connection component 20c is located between the first connection component 20a and the second connection component 20b.
  • the first connection component 20a is located on the front side of the foldable mechanism 130
  • the second connection component 20b is located on the rear side of the foldable mechanism 130
  • the third connection component 20c is located in the middle of the foldable mechanism 130.
  • the first connection assembly 20a includes a first fixed frame 21a, a second fixed frame 22a, a first main swing arm 23a, a second main swing arm 24a, a first auxiliary swing arm 25a and a second auxiliary swing arm 26a.
  • the first main swing arm 23a is rotatably connected to the first fixed frame 21a, and is slidably and rotatably connected to the base 10.
  • the second main swing arm 24a is rotatably connected to the second fixed frame 22a, and is slidably and rotatably connected to the base 10a.
  • the first auxiliary swing arm 25a is slidingly connected to the first fixed frame 21a, and is rotationally connected to the base 10.
  • the second auxiliary swing arm 26a is slidingly connected to the second fixed frame 22a and rotationally connected to the base 10 .
  • the direction in which the first fixed frame 21a, the first main swing arm 23a and the first auxiliary swing arm 25a rotate relative to the base 10 is the first direction, and the first direction is the first direction.
  • the direction in which the two fixed brackets 22a, the second main swing arm 24a and the second auxiliary swing arm 26a rotate relative to the base 10 is the second direction, and the second direction is opposite to the first direction.
  • the first connection component 20a switches from the folded state to the unfolded state
  • the first fixed frame 21a, the first main swing arm 23a and the first auxiliary swing arm 25a rotate counterclockwise relative to the base 10
  • the second fixed The frame 22a, the second main swing arm 24a and the second auxiliary swing arm 26a rotate clockwise relative to the base 10.
  • the first connection assembly 20a switches from the unfolded state to the folded state
  • the first main swing arm 23a and the first auxiliary swing arm 25a rotate clockwise relative to the base 10
  • the second main swing arm 24a and the second auxiliary swing arm 26a Rotate counterclockwise relative to the base 10 .
  • connection component 20b and the first connection component 20a may be the same or similar components, a symmetrical or partially symmetrical structure, or a different structure.
  • the second connection component 20b may be centrally symmetrical with the first connection component 20a.
  • the basic structure of each component in the second connection component 20b, the connection relationship between the components, and the connection relationship between the components and components other than the component can all be referred to the relevant design of the first connection component 20a, the second connection component 20b
  • the detailed structure or position arrangement of the components may be different from the first connecting component 20a.
  • the second connection assembly 20b includes a first fixed frame 21b, a second fixed frame 22b, a first main swing arm 23b, a second main swing arm 24b, a first auxiliary swing arm 25b and a second auxiliary swing arm 26b.
  • first connection component 20a For the structure of each component of the second connection component 20b and the connection relationship between each component and the base 10, the pressure plate assembly 40 and the damping component 30, reference can be made to the relevant description of the first connection component 20a.
  • the third connection assembly 20c includes a first fixed bracket 21c, a second fixed bracket 22c, a first main swing arm 23c and a second main swing arm 24c.
  • first connection component 20a For the structure of each component of the third connection component 20c and the connection relationship between each component and the base 10, the pressure plate assembly 40 and the damping component 30, reference can be made to the relevant description of the first connection component 20a.
  • the third connection component 20c may also include a first auxiliary swing arm and a second auxiliary swing arm (not shown), which is not specifically limited in this application.
  • first fixing bracket 21a of the first connecting component 20a, the first fixing bracket 21b of the second connecting component 20b, and the first fixing bracket 21c of the third connecting component 20c can be independent structural components, or they can be Multiple parts of a single structural component.
  • second fixing bracket 22a of the first connecting component 20a, the second fixing bracket 22b of the second connecting component 20b, and the second fixing bracket 22c of the third connecting component 20c can be independent structural components, or they can be Multiple parts of a one-piece structural member.
  • the foldable mechanism 130 also includes a synchronizing member 60 , which is installed on the base 10 and is slidably connected to the connecting component 20 .
  • a synchronizing member 60 which is installed on the base 10 and is slidably connected to the connecting component 20 .
  • there are two synchronizing members 60 and the two synchronizing members 60 are spaced apart from each other along the Y-axis direction.
  • the two synchronizing parts 60 are respectively a first synchronizing part 60a and a second synchronizing part 60b.
  • the first synchronizing member 60a is installed on the front side of the base 10 and is slidably connected to the first auxiliary swing arm 25a and the second auxiliary swing arm 26a, so that the first auxiliary swing arm 25a and the second auxiliary swing arm 26a are relative to the base 10 Rotate synchronously.
  • the second synchronizing member 60b is installed on the rear side of the base 10 and is slidably connected to the first auxiliary swing arm 25b and the second auxiliary swing arm 26b, so that the first auxiliary swing arm 25b and the second auxiliary swing arm 26b are relative to the base 10 Rotate synchronously.
  • the second synchronization part 60b and the first synchronization part 60a may be the same or similar components, a symmetrical or partially symmetrical structure, or a different structure.
  • the second synchronizing member 60b may be mirror symmetrical to the first synchronizing member 60a.
  • the basic structure of each component in the second synchronization component 60b, the connection relationship between the components, and the connection relationship between the components and components other than the assembly can all be referred to the relevant design of the first synchronization component 60a, the second synchronization component 60b
  • the detailed structure or position arrangement of the components may be different from that of the first synchronizing member 60a.
  • damping components 30 there are two damping components 30 , and the two damping components 30 are spaced apart from each other along the Y-axis direction.
  • the two damping components 30 are respectively a first damping component 30a and a second damping component 30b.
  • the first damping component 30a is installed on the first connection component 20a. When the first connecting component 20a is folded or unfolded relative to the base 10, the first damping component 30a can provide a damping force.
  • the second damping component 30b is installed on the second connection component 20b. When the second connection component 20b is folded or unfolded relative to the base 10, the second damping component 30b can provide a damping force.
  • the user When the user is using the foldable terminal 1000, for example, when the foldable terminal 1000 is in a folded state or a flat state, and when the foldable terminal 1000 is switched between the folded state and the unfolded state, the user can clearly feel the first damping. With the damping force provided by the component 30a and the second damping component 30b, the user can experience a better feel, thus improving the user's experience.
  • damping assemblies 30 there may be three damping assemblies 30.
  • the three damping assemblies 30 are respectively a first damping assembly 30a, a second damping assembly 30b and a third damping assembly (not shown).
  • the third damping assembly is installed on The third connection component 20c. When the third connecting component 20c is folded or unfolded relative to the base 10, the third damping component can provide damping force.
  • the first damping component 30a includes a first damping member 31a and a second damping member 32a.
  • the first damping member 31a is installed on the first fixed frame 21a and is fixedly connected to the first auxiliary swing arm 25a, and can slide relative to the first fixed frame 21a driven by the first auxiliary swing arm 25a.
  • the second damping member 32a is installed on the second fixed frame 22a and is fixedly connected to the second auxiliary swing arm 26a, and can slide relative to the second fixed frame 22a driven by the second auxiliary swing arm 26a.
  • the second damping component 30b and the first damping component 30a may be the same or similar components, symmetrical or partially symmetrical structures, or different structures.
  • the second damping component 30b may be mirror symmetrical to the first damping component 30a.
  • the basic structure of each component in the second damping component 30b, the connection relationship between the components, and the connection relationship between the components and components other than the component can all be referred to the relevant design of the first damping component 30a, the second damping component 30b
  • the detailed structure or position arrangement of the components may be different from the first damping component 30a.
  • the second damping component 30b includes a first damping member 31b and a second damping member 32b.
  • the first damping member 31b is installed on the first fixed frame 21b and is fixedly connected to the first auxiliary swing arm 25b, and can slide relative to the first fixed frame 21b driven by the first auxiliary swing arm 25b.
  • the second damping member 32b is installed on the second fixed frame 22b and is fixedly connected to the second auxiliary swing arm 26b, and can slide relative to the second fixed frame 22b driven by the second auxiliary swing arm 26b.
  • the pressure plate assembly 40 is slidably and rotationally connected to the connection assembly 20 .
  • the pressure plate assembly 40 includes a first pressure plate 41 , a second pressure plate 42 , a first pressure plate swing arm 43 and a second pressure plate swing arm 44 .
  • the front side of the first pressure plate 41 is slidably and rotationally connected to the first fixed frame 21a
  • the rear side of the first pressure plate 41 is slidably and rotationally connected to the first fixed frame 21b
  • the middle part of the first pressure plate 41 is slidably and rotationally connected to the first fixed frame 21c.
  • the front side of the second pressure plate 42 is slidably and rotationally connected to the second fixed frame 22a
  • the rear side of the second pressure plate 42 is slidably and rotationally connected to the second fixed frame 22b
  • the middle part of the second pressure plate 42 is slidably and rotationally connected to the second fixed frame 22c.
  • four first pressure plate swing arms 43 are arranged at intervals from each other
  • four second pressure plate swing arms 44 are arranged at intervals from each other.
  • the first pressure plate swing arm 43 may also have one, two or more than four
  • the second pressure plate swing arm 44 may also have one, two or more than four. This application applies
  • the number of the first pressure plate swing arm 43 and the second pressure plate swing arm 44 is not specifically limited.
  • Each first pressure plate swing arm 43 is slidably connected to the first pressure plate 41 and is slidably and rotationally connected to the base 10 .
  • Each second pressure plate swing arm 44 is slidably connected to the second pressure plate 42 and is slidably and rotationally connected to the base 10 .
  • the rotation centers of the first pressure plate swing arm 43 and the second pressure plate swing arm 44 relative to the base 10 are both parallel to the Y-axis direction.
  • each first pressure plate swing arm 43 can also be rotatably connected to the base 10, and/or each second pressure plate swing arm 44 can also be rotatably connected to the base 10.
  • the flexible support plate 50 is installed on the first pressure plate swing arm 43 and the second pressure plate swing arm 44, and can be bent to be folded or unfolded relative to each other under the driving of the first pressure plate swing arm 43 and the second pressure plate swing arm 44. Achieve mutual conversion between folded state and expanded state.
  • the bending direction of the flexible support plate 50 is the Y-axis direction and is parallel to the rotation center of the first pressure plate swing arm 43 and the second pressure plate swing arm 44 relative to the base 10 . It should be noted that the bending direction of the flexible support plate 50 is the Y-axis, which means that the flexible support plate 50 can be bent around the Y-axis direction.
  • FIG. 7 is a schematic structural diagram of the base 10 in the foldable mechanism 130 shown in FIG. 6 .
  • the base 10 is provided with an escape groove 101 , and the opening of the escape groove 101 is located on the top surface of the base 10 . Specifically, the opening of the escape groove 101 is located in the middle area of the top surface of the base 10 .
  • the relief groove 101 is recessed from the top to the bottom of the base 10 (the negative direction of the Z-axis in the figure). Wherein, the escape groove 101 extends along the Y-axis. Avoidance groove 101 arc groove. That is, the bottom wall of the escape groove 101 is an arc-shaped surface.
  • the base 10 includes a first part 10a, a second part 10b and a third part 10c.
  • the first part 10a, the second part 10b and the third part 10c are arranged in sequence along the Y-axis direction.
  • the third part 10c is connected to between the first part 10a and the second part 10b.
  • the first part 10a is located on the front side of the base 10 and can be cooperatively connected with the first connecting component 20a and the first synchronizing member 60a (as shown in Figure 6).
  • the second part 10b is located on the rear side of the base 10 and can be cooperatively connected with the second connecting component 20b and the second synchronizing member 60b (as shown in Figure 6).
  • the third part 10c is located in the middle of the base 10 and can be matched with the third connecting component 20c (as shown in Figure 6).
  • first part 10a and the second part 10b may be the same or similar components, symmetrical or partially symmetrical structures, or different structures.
  • first part 10a and the second part 10b can be centrally symmetrical to improve the symmetry of the base 10, simplify the overall structure of the base 10, improve the structural stability of the base 10, and also reduce the stress of the base 10. Processing costs.
  • the basic structure of each component in the second part 10b, the connection relationship between the components, and the connection relationship between the components and components other than the assembly can all refer to the relevant design of the first part 10a.
  • the second part 10b and the second part 10b Portions 10a may vary in detail or arrangement of components.
  • the base 10 is an integrally formed structural member to improve the overall strength of the base 10 and ensure the structural stability of the base 10 .
  • the base shown in the embodiment of the present application does not require the use of screws or screws and other fasteners to realize the assembly between the bracket and the shaft cover, simplifying the number of parts of the foldable mechanism 130 and facilitating the assembly. Assembling the foldable mechanism 130 can also improve the assembly accuracy of the base 10 .
  • the base 10 can be made of high-strength and wear-resistant materials, so that the base 10 has higher strength and better wear resistance, and avoids the wear and tear of the base 10 from affecting the reliability of the foldable mechanism 130. to ensure the user experience of the foldable mechanism 130.
  • high-strength wear-resistant metal materials such as stainless steel or titanium alloy are integrated and formed.
  • the base 10 can be made of stainless steel and high-strength plastic materials through injection molding.
  • the base 10 can be made of titanium alloy and high-strength plastic materials.
  • the base 10 can be integrated by injection molding, or the base 10 can be integrated by injection molding using aluminum alloy and high-strength plastic materials.
  • Figure 8 is a schematic structural diagram of the first part 10a of the base 10 shown in Figure 7.
  • the first part 10a of the base 10 is provided with a first sliding groove 101a, a second sliding groove 102a, a first rotation groove 103a, a second rotation groove 104a, a first fitting groove 105a and a second fitting groove 106a.
  • the first sliding groove 101a, the first rotation groove 103a and the first matching groove 105a are all located on the left side of the first part 10a, and all pass through the left side of the first part 10a and the bottom wall of the escape groove 101.
  • the first fitting groove 105a, the first sliding groove 101a and the first rotation groove 103a are arranged at intervals in sequence.
  • the second sliding groove 102a, the second rotating groove 104a and the second matching groove 106a are all located on the right side of the first part 10a, and all penetrate the right side of the first part 10a and the bottom wall of the escape groove 101.
  • the second fitting groove 106a, the second sliding groove 102a and the second rotation groove 104a are arranged in sequence at intervals.
  • first sliding groove 101a and the second sliding groove 102a are spaced apart.
  • first rotation groove 103a and the second rotation groove 104a are spaced apart and relatively arranged, and the first fitting groove 105a and the second fitting groove 106a are spaced apart and arranged oppositely.
  • the first sliding groove 101a, the second sliding groove 102a, the first matching groove 105a and the second matching groove 106a are all arc-shaped grooves. That is, the groove bottom walls of the first sliding groove 101a, the second sliding groove 102a, the first fitting groove 105a and the second fitting groove 106a are all arc-shaped surfaces.
  • the first rotation groove 103a includes two first groove side walls (not labeled in the figure).
  • the two first groove side walls are spaced apart and oppositely arranged along the Y-axis direction.
  • a first mounting hole (not labeled) is provided on the side wall of each first slot, and the first mounting hole extends along the Y-axis direction.
  • the two first mounting holes are both circular holes and are coaxially arranged.
  • coaxial center means that the extension lines of the axis centers coincide with each other.
  • coaxial center of A and B means that the extension line of the axis center of A coincides with the extension line of the axis center of B.
  • coaxial center can be understood in the same way.
  • the second rotation groove 104a includes two second groove side walls (not labeled in the figure).
  • the two second groove side walls are spaced apart and oppositely arranged along the Y-axis direction.
  • the side wall of each second slot is provided with a second mounting hole (not labeled in the figure), and the second mounting hole extends along the Y-axis direction.
  • the two second mounting holes are both circular holes and are coaxially arranged.
  • each second mounting hole and a first mounting hole are spaced apart.
  • the first part 10a of the base 10 is also provided with a communication groove 107a, and the opening of the communication groove 107a is located on the bottom wall of the escape groove 101.
  • the communication groove 107a extends from the bottom wall of the relief groove 101 in the direction of the bottom surface of the first part 10a (the negative direction of the Z-axis in the figure).
  • the communication groove 107a is located between the first rotation groove 103a and the second rotation groove 104a, and communicates with the first rotation groove 103a and the second rotation groove 104a.
  • the communication groove 107a includes a third groove side wall and a fourth groove side wall (not labeled in the figure).
  • the third groove side wall and the fourth groove side wall are spaced apart and oppositely arranged along the Y-axis direction.
  • a third mounting hole (not labeled) is provided on the side wall of the third slot, and the third mounting hole extends along the positive direction of the Y-axis.
  • the side wall of the fourth groove is provided with a bump (not labeled in the figure), and the bump extends along the positive direction of the Y-axis.
  • the bump is provided with a fourth mounting hole (not shown), and the opening of the fourth mounting hole is located on the surface of the bump away from the side wall of the fourth groove.
  • the fourth mounting hole extends along the negative direction of the Y-axis. Wherein, the third mounting hole and the fourth mounting hole are both square holes, and the third mounting hole and the fourth mounting hole are arranged oppositely.
  • Figure 9 is a schematic structural diagram of the second part 10b of the base 10 shown in Figure 7.
  • the second part 10b of the base 10 is provided with a first sliding groove 101b, a second sliding groove 102b, a first rotation groove 103b, a second rotation groove 104b, a first fitting groove 105b, a second fitting groove 106b and a communication groove 107b.
  • first sliding groove 101b, the second sliding groove 102b, the first rotation groove 103b, the second rotation groove 104b, the first matching groove 105b, the second matching groove 106b and the communication groove 107b can be referred to respectively.
  • first sliding groove 101a, the second sliding groove 102a, the first rotating groove 103a, the second rotating groove 104a, the first fitting groove 105a, the second fitting groove 106a and the communication groove 107a in the first part 10a are as follows. This will not be described again. Among them, along the positive direction of the Y-axis, the first fitting groove 105b, the first sliding groove 101b and the first rotating groove 103b are arranged in sequence, and the second fitting groove 106b, the second sliding groove 102b and the second rotating groove 104b are arranged in sequence. cloth.
  • Figure 10 is a schematic structural diagram of the third part 10c of the base 10 shown in Figure 7.
  • the third part 10c of the base 10 is provided with a first sliding groove 101c, a second sliding groove 102c, a first fitting groove 103c and a second fitting groove 104c.
  • first sliding groove 101c, the second sliding groove 102c, the first matching groove 103c and the second matching groove 104c can be referred to the first sliding groove 101a and the second sliding groove in the first part 10a above respectively.
  • relevant descriptions of 102a, the first fitting groove 105a and the second fitting groove 106a will not be repeated here.
  • first fitting grooves 103c and two second fitting grooves 104c there are two first fitting grooves 103c and two second fitting grooves 104c.
  • the two first fitting grooves 103c are respectively located on opposite sides of the first sliding groove 101c
  • the two second fitting grooves 104c are respectively located on opposite sides of the second sliding groove 102c.
  • a first fitting groove 103c and a second fitting groove 104c are spaced apart and oppositely arranged.
  • Figure 11 is a schematic structural diagram of the first connection component 20a, the first damping component 30a and the first synchronization component 60a in the foldable mechanism 130 shown in Figure 6.
  • Figure 12 is a schematic diagram of the structure of the foldable mechanism 130 shown in Figure 11. shows a schematic structural diagram of the first connecting component 20a, the first damping component 30a and the first synchronizing component 60a from another angle.
  • the first fixed frame 21a is provided with a receiving notch 211a, a mounting notch 212a, a sliding groove 213a, a first mounting groove 214a, a second mounting groove 215a, an escape groove 216a and a guide groove 217a.
  • the opening of the receiving notch 211a is located on the top surface of the first fixing bracket 21a.
  • the receiving notch 211a is recessed from the top to the bottom of the first fixed frame 21a (ie, the negative direction of the Z-axis in the figure), and penetrates the front end surface, the rear end surface and the right side of the first fixed frame 21a.
  • the receiving notch 211a may not penetrate the front end surface of the first fixing frame 21a, and/or the receiving notch 211a may not penetrate the rear end surface of the first fixing frame 21a, and/or the receiving notch 211a It is not necessary to penetrate the right side of the first fixing bracket 21a.
  • the opening of the installation notch 212a is located on the right side of the first fixing bracket 21a.
  • the installation notch 212a is recessed from the right side to the left side of the first fixing bracket 21a (negative direction of the X-axis in the figure), and penetrates the bottom surface of the first fixing bracket 21a and the bottom wall of the groove receiving the notch 211a. In some other embodiments, the installation notch 212a may not penetrate the bottom surface of the first fixing bracket 21a.
  • the installation notch 212a includes two opposite groove side walls and a groove bottom wall (not labeled) connected between the two groove side walls.
  • the two groove side walls of the mounting notch 212a are both concavely provided with mounting holes (not labeled in the figure), and the mounting holes are concave along the Y-axis direction.
  • two mounting holes are round holes and the two mounting holes are coaxial.
  • the axes of the two mounting holes are parallel to the Y-axis direction.
  • a mounting boss (not labeled) is protruding from the bottom wall of the groove of the installation notch 212a, and the installation boss is spaced apart from the two groove side walls of the installation notch 212a.
  • the mounting boss is provided with a through hole (not marked in the figure), and the through hole penetrates the mounting boss along the Y-axis direction.
  • the through hole is a round hole, and the through hole is coaxial with the two mounting holes.
  • the axis of the through hole is parallel to the Y-axis direction.
  • the bottom wall of the groove of the mounting notch 212a may not be provided with a mounting boss.
  • the chute 213a is located on the side of the installation notch 212a facing the negative direction of the Y-axis, and is spaced apart from the installation notch 212a.
  • the opening of the slide groove 213a is located on the right side of the first fixing bracket 21a.
  • the slide groove 213a is recessed from the right side to the left side of the first fixed frame 21a, and penetrates the left side of the first fixed frame 21a and the bottom surface of the first fixed frame 21a.
  • the cross section of the chute 213a is square. In some other embodiments, the cross section of the chute 213a may also be a round hole or a special-shaped hole.
  • the first mounting groove 214a and the second mounting groove 215a are located on opposite sides of the slide groove 213a, and both are connected with the slide groove 213a.
  • the first mounting groove 214a is located on the side of the slide groove 213a facing the positive direction of the Y-axis.
  • the opening of the first mounting groove 214a is located on the bottom surface of the first fixing bracket 21a.
  • the first mounting groove 214a is recessed from the bottom surface of the first fixing frame 21a toward the top surface, and penetrates the groove side wall of the slide groove 213a.
  • a first fixing block 218a protrudes from the bottom wall of the first mounting slot 214a.
  • the first fixing block 218a extends from the bottom wall of the first mounting slot 214a in the negative Z-axis direction.
  • the first fixed block 218a is in the shape of a square.
  • the second mounting groove 215a is located on the side of the slide groove 213a facing the negative direction of the Y-axis.
  • the structure of the second mounting groove 215a is substantially the same as that of the first mounting groove 214a, and will not be described again here.
  • a second fixing block 219a protrudes from the bottom wall of the second mounting groove 215a.
  • the second fixed block 219a is in the shape of a square.
  • the escape groove 216a is located on the side of the installation notch 212a away from the slide groove 213a, and is spaced apart from the installation notch 212a.
  • the opening of the escape groove 216a is located on the right side of the first fixing bracket 21a.
  • the escape groove 216a is recessed from the right side to the left side of the first fixed frame 21a, and penetrates the bottom surface of the first fixed frame 21a and the groove bottom wall of the receiving notch 211a.
  • the bottom wall of the escape groove 216a is provided with a sliding hole 2161a.
  • the sliding hole 2161a extends along the negative direction of the X-axis and penetrates the left side of the first fixing bracket 21a.
  • the sliding hole 2161a is a square hole.
  • the escape groove 216a may not penetrate the bottom surface of the first fixing frame 21a, and/or the escape groove 216a may not penetrate the bottom wall of the receiving notch 211a, and/or the escape groove 216a may The bottom wall may not be provided with the sliding hole 2161a, or the sliding hole 2161a may not penetrate the left side of the first fixing bracket 21a.
  • the opening of the guide groove 217a is located at the bottom wall of the receiving notch 211a.
  • the guide groove 217a is recessed from the bottom wall of the receiving notch 211a toward the bottom surface of the first fixed frame 21a (the negative direction of the Z-axis in the figure), and penetrates the left side of the first fixed frame 21a.
  • the guide groove 217a is an arc-shaped groove. That is, the groove bottom wall of the guide groove 217a is an arc-shaped surface. In some other embodiments, the guide groove 217a may not penetrate the left side of the first fixing bracket 21a.
  • one guide groove 217a is located on the side of the escape groove 216a away from the installation notch 212a and is spaced apart from the escape groove 216a. It also penetrates the top surface of the first fixing frame 21a and the first fixing bracket 217a. The front end surface of the frame 21a.
  • the other guide groove 217a is located on the side of the slide groove 213a away from the installation notch 212a and is spaced apart from the slide groove 213a. It also penetrates the top surface of the first fixing bracket 21a and the rear end surface of the first fixing bracket 21a.
  • the guide groove 217a may not penetrate the top surface of the first fixed frame 21a, and/or the guide groove 217a may not penetrate the front end surface of the first fixed frame 21a, and/or the guide groove 217a It is not necessary to penetrate the rear end surface of the first fixing bracket 21a.
  • the first main swing arm 23a includes a rotating part 231a, a connecting part 232a and a sliding part 233a.
  • the connecting part 232a is connected between the rotating part 231a and the sliding part 233a.
  • the rotating part 231a includes two sub-rotating parts 234a, and the two sub-rotating parts 234a are spaced apart along the Y-axis direction.
  • Each sub-rotating part 234a is provided with a through hole (not labeled in the figure), and the through hole penetrates the sub-rotating part 234 along the Y-axis direction.
  • the structure of the rotating part 231a is adapted to the structure of the mounting notch 212a.
  • the first connecting component 20a further includes a first pin 271a, which can pass through the through holes of the two sub-rotating parts 234a.
  • the first pin 271a can be installed in the installation notch 212a.
  • the first pin 271a can pass through the through hole of the mounting boss in the mounting notch 212a. Both ends of the first pin 271a are respectively installed in the installation holes of the two groove side walls of the installation notch 212a, and are respectively fixedly connected to the hole walls of the two installation holes.
  • the first pin 271a is a circular axis, and the axis center of the first pin 271a is parallel to the Y-axis direction.
  • the two sub-rotating parts 234a can rotate relative to the first pin 271a to realize the rotational connection between the rotating part 231a and the first pin 271a, and thereby realize the rotational connection between the first main swing arm 23a and the first fixed frame 21a. .
  • the connecting portion 232a has a flat plate shape.
  • the structure of the sliding part 233a is adapted to the structure of the first sliding groove 101a.
  • the sliding part 233a is in the shape of an arc plate, and the axis center of the sliding part 233a is parallel to the Y-axis direction.
  • the sliding part 233a is installed in the first sliding groove 101a, and can slide and rotate in the first sliding groove 101a to realize the sliding and rotating connection between the sliding part 233a and the base 10, thereby realizing the first main swing arm 23a and the base 10.
  • the sliding portion 233a is coaxial with the first sliding groove 101a.
  • the base 10 is an integrally formed structural member, the first sliding groove 101a does not require a shaft cover and a bracket to form.
  • the sum of the thicknesses of the first sliding groove 101a and the sliding portion 233a Being smaller, the space occupied by the foldable mechanism 130 can be saved, which is beneficial to achieving a thin and light design of the foldable mechanism 130 .
  • the first auxiliary swing arm 25a includes a rotating part 251a, a connecting part 252a and a sliding part 253a.
  • the connecting part 252a is connected between the rotating part 251a and the sliding part 253a.
  • the sliding part 253a has a flat plate shape.
  • a third fixing block 254a is protruding from the bottom surface of the sliding part 253a, and the third fixing block 254a extends along the negative direction of the Z-axis.
  • the third fixing block 254a is provided in the middle area of the bottom surface of the sliding part 253a.
  • the third fixed block 254a is in the shape of a square.
  • the structure of the sliding part 253a is adapted to the structure of the slide groove 213a.
  • the sliding part 253a can be installed in the sliding groove 213a, and can slide relative to the first fixed frame 21a in the sliding groove 213a, so as to realize the sliding connection between the first auxiliary swing arm 25a and the first fixed frame 21a.
  • the rotating part 251a is cylindrical.
  • the rotating part 251a is provided with a through hole (not labeled) and a first spiral groove 255a.
  • the through hole penetrates the rotating part 251a.
  • the first spiral groove 255a is located on the side of the rotating part 251a away from the connecting part 252a. Among them, the first spiral groove 255a curves and extends around the axis of the rotating part 251a.
  • the structure of the rotating part 251a is adapted to the structure of the first rotating groove 103a.
  • the first connecting component 20a further includes a first rotating shaft 281a, which is passed through the through hole of the rotating part 251a.
  • the first rotation shaft 281a can be installed in the first rotation groove 103a.
  • both ends of the first rotation shaft 281a are respectively installed in the first mounting holes of the two first groove side walls in the first rotation groove 103a, and are respectively fixedly connected to the hole walls of the two first mounting holes.
  • the rotating part 251a can rotate relative to the first rotating shaft 281a to realize the rotating connection between the rotating part 251a and the base 10, and thereby realize the rotating connection between the first auxiliary swing arm 25a and the base 10.
  • the first rotating shaft 281a is a circular axis, and the axis of the first rotating shaft 281a is parallel to the Y-axis direction and coaxial with the rotating part 251a.
  • the rotation center of the rotation portion 251a of the first auxiliary swing arm 25a relative to the base 10 is the axis center of the first rotation shaft 281a. That is, the rotation center of the first auxiliary swing arm 25a relative to the base 10 is the axis center of the first rotation shaft 281a.
  • the second fixed frame 22a is provided with a receiving notch 221a, a mounting notch 222a, a sliding groove 223a, a first mounting groove 224a, a second mounting groove 225a, an escape groove 226a and a guide groove 227a.
  • the structures of the receiving notch 221a, the installation notch 222a, the slide groove 223a, the first installation groove 224a, the second installation groove 225a, the avoidance groove 226a and the guide groove 227a can respectively refer to the receiving notch 211a and the installation notch in the first fixed frame 21a.
  • 212a, the slide groove 213a, the first installation groove 214a, the second installation groove 215a, the escape groove 216a and the guide groove 217a are not described again here.
  • the receiving notch 221a also penetrates the left side of the second fixing bracket 22a.
  • the installation notch 222a and the opening of the slide groove 223a are both located on the left side of the second fixing bracket 22a.
  • a first fixing block 228a protrudes from the bottom wall of the first mounting groove 224a
  • a second fixing block 229a protrudes from the bottom wall of the second mounting groove 225a.
  • the opening of the escape groove 226a is located on the left side of the second fixed frame 22a.
  • the bottom wall of the escape groove 226a is provided with a sliding hole 2261a.
  • the sliding hole 2261a extends along the positive direction of the X-axis and penetrates the right side of the second fixed frame 22a. .
  • the second main swing arm 24a includes a rotating part 241a, a connecting part 242a and a sliding part 243a.
  • the connecting part 242a is connected between the rotating part 241a and the sliding part 243a.
  • the rotating part 241a includes two sub-rotating parts 244a.
  • the structure of the rotating part 241a is adapted to the structure of the mounting notch 222a.
  • the first connecting component 20a also includes a second pin 272a, and the second pin 272a can pass through the through holes of the two sub-rotating parts 244a (not shown).
  • the second pin 272a can be installed in the installation notch 222a.
  • the second pin 272a is a circular axis, and the axis center of the second pin 272a is parallel to the Y-axis direction.
  • the two sub-rotating parts 244a can rotate relative to the second pin 272a to achieve a rotational connection between the rotating part 241a and the second pin 272a, thereby realizing a rotational connection between the second main swing arm 24a and the second fixed frame 22a. .
  • the structure of the sliding part 243a is adapted to the structure of the second sliding groove 102a.
  • the sliding part 243a is in the shape of an arc plate, and the axis center of the sliding part 243a is parallel to the Y-axis direction.
  • the sliding part 243a is installed in the second sliding groove 102a, and can slide and rotate in the second sliding groove 102a, so as to realize the sliding and rotating connection between the sliding part 243a and the base 10, thereby realizing the second main swing arm 24a and the base 10.
  • the sliding portion 243a is coaxial with the second sliding groove 102a.
  • the second sliding groove 102a does not require a shaft cover and a bracket to be formed together.
  • the sum of the thicknesses of the second sliding groove 102a and the sliding portion 243a is small, which can save time and space.
  • the space occupied by the folding mechanism 130 is conducive to achieving a lightweight and thin design of the folding mechanism 130 .
  • the second auxiliary swing arm 26a includes a rotating part 261a, a connecting part 262a and a sliding part 263a.
  • the connecting part 262a is connected between the rotating part 261a and the sliding part 263a.
  • a third fixing block 264a protrudes from the bottom surface of the sliding part 263a.
  • the structure of the sliding part 263a is adapted to the structure of the slide groove 223a.
  • the sliding part 263a can be installed in the sliding groove 223a, and can slide relative to the second fixed frame 22a in the first sliding groove 223a, so as to realize the sliding connection between the sliding part 263a and the second fixed frame 22a, thereby realizing the second auxiliary pendulum.
  • the rotating part 261a is provided with a through hole (not labeled) and a second spiral groove 265a.
  • the rotating portion 261a is adapted to the structure of the second rotating groove 104a.
  • the first connection component 20a also includes a second rotation shaft 282a, and the second rotation shaft 282a passes through the through hole of the rotation part 261a.
  • the second rotation shaft 282a can be installed in the second rotation groove 104a.
  • the rotating part 261a can rotate relative to the second rotating shaft 282a to realize the rotating connection between the rotating part 261a and the base 10, and thereby realize the rotating connection between the second auxiliary swing arm 26a and the base 10.
  • the second rotation axis 282a is a circular axis, and the axis center of the second rotation axis 282a is parallel to the Y-axis direction.
  • the rotation center of the rotation portion 261a of the second auxiliary swing arm 26a relative to the base 10 is the axis center of the second rotation shaft 282a. That is, the rotation center of the second auxiliary swing arm 26a relative to the base 10 is the axis center of the second rotation shaft 282a.
  • the first fixed frame 21a drives the first main swing arm 23a to rotate relative to the first fixed frame 21a. , and drives the first main swing arm 23a to slide and rotate relative to the base 10, and also drives the first auxiliary swing arm 25a to slide relative to the first fixed frame 21a, and drives the first auxiliary swing arm 25a to rotate relative to the base 10.
  • the second fixed frame 22a rotates relative to the base 10
  • the second fixed frame 22a drives the second main swing arm 24a to rotate relative to the second fixed frame 22a, and drives the second main swing arm 24a to slide and rotate relative to the base 10.
  • the first damping member 31a includes a first fixing part 311a, a second fixing part 312a, a third fixing part 313a, a first connecting part 314a and a second connecting part 315a.
  • the third fixing part 313a is located between the first fixing part 311a and the second fixing part 312a, and is spaced apart from the first fixing part 311a and the second fixing part 312a.
  • the first connecting part 314a is fixedly connected between the first fixing part 311a and the third fixing part 313a.
  • the second connecting part 315a is fixedly connected between the second fixing part 312a and the third fixing part 313a.
  • the first damping member 31a is an integrally formed structural member.
  • the first fixing part 311a is provided with a first fixing hole 316a, and the first fixing hole 316a penetrates the first fixing part 311a along the thickness direction of the first fixing part 311a.
  • the second fixing part 312a is provided with a second fixing hole 317a, and the second fixing hole 317a penetrates the second fixing part 312a along the thickness direction of the second fixing part 312a.
  • the third fixing part 313a is provided with a third fixing hole 318a, and the third fixing hole 318a penetrates the third fixing part 313a along the thickness direction of the third fixing part 313a.
  • the first fixing part 311a is installed in the first installation groove 214a
  • the second fixing part 312a is installed in the second installation groove 215a to achieve assembly between the first damping member 31a and the first fixing bracket 21a.
  • the third fixed portion 313a is fixedly connected to the sliding portion 253a of the first auxiliary swing arm 25a to achieve a fixed connection between the first damping member 31a and the first auxiliary swing arm 25a.
  • the first fixing block 218a is installed in the first fixing hole 316a
  • the second fixing block 219a is installed in the second fixing hole 317a
  • the third fixing block 254a is installed in the third fixing hole 318a.
  • the sliding part 253a drives the third fixed part 313a to move relative to the first fixed part 311a and the second fixed part 312a, and the first connecting part 314a and the second connecting part 315a Deformation produces damping force.
  • the user folds or unfolds the foldable terminal 1000, the user can feel the damping force generated by the deformation of the first connection part 314a and the second connection part 315a, and the user can experience a better hand feel, thus improving the user experience.
  • the second damping member 32a includes a first fixing part 321a, a second fixing part 322a, a third fixing part 323a, a first connecting part 324a and a second connecting part 325a.
  • the first fixing part 321a, the second fixing part 322a, the third fixing part 323a, the first connecting part 324a and the second connecting part 325a can respectively refer to the first fixing part 311a and the second fixing part 311a of the first damping member 31a above.
  • the relevant descriptions of the fixing part 312a, the third fixing part 313a, the first connecting part 314a and the second connecting part 315a will not be described again here.
  • the first fixing part 321a is installed in the first installation groove 224a
  • the second fixing part 322a is installed in the second installation groove 225a to achieve assembly between the second damping member 32a and the second fixing bracket 22a.
  • the third fixed portion 323a is fixedly connected to the sliding portion 263a of the second auxiliary swing arm 26a to achieve a fixed connection between the second damping member 32a and the second auxiliary swing arm 26a.
  • the first fixing block 228a is installed in the first fixing hole 326a
  • the second fixing block 229a is installed in the second fixing hole 327a
  • the third fixing block 264a is installed in the third fixing hole 328a.
  • the sliding part 253a drives the third fixed part 323a to move relative to the first fixed part 321a and the second fixed part 322a, and the first connecting part 324a and the second connecting part 325a are connected.
  • Deformation produces damping force.
  • the user can feel the damping force generated by the deformation of the first connection part 324a and the second connection part 325a, and the user can experience a better hand feel, thereby improving the user's use experience.
  • the first connection component 20a switches between the folded state and the unfolded state
  • the first fixed frame 21a, the second fixed frame 22a, the first auxiliary swing arm 25a and the second auxiliary swing arm 26a all rotate relative to the base 10, and then
  • the first damping member 31a and the second damping member 32a are driven to rotate relative to the base 10, thereby causing the first damping assembly 30a to switch between the folded state and the unfolded state.
  • the first damping component 30a installed on the first connection component 20a is used to provide damping force during the folding and unfolding processes.
  • the first damping component 30a shown in this embodiment not only has fewer parts and is simple to assemble, which can reduce the cost of the foldable mechanism 130 and simplify the structure of the foldable mechanism 130, but the first damping component 30a can also be directly installed on the first connection
  • the component 20a does not need to be installed on the base 10, so the first damping component 30a does not need to occupy the space of the base 10, which helps to achieve a lightweight and thin design of the foldable mechanism 130.
  • the first damping component 30a may also use springs and cams to provide the damping force of the foldable mechanism 130 during the folding and unfolding processes, and this application does not specifically limit this.
  • the first synchronization component 60 includes a fixed column 61a and a synchronized slide block 62a.
  • the synchronized slide block 62a is sleeved on the fixed column 61a and can slide relative to the fixed column 61a.
  • the synchronizing slider 62a is provided with a first cam 63a and a second cam 64a.
  • the first cam 63a and the second cam 64a are respectively located on opposite sides of the synchronizing slider 62a.
  • the structure of the first cam 63a is adapted to the structure of the first spiral groove 255a
  • the structure of the second cam 64a is adapted to the structure of the second spiral groove 265a.
  • the first synchronizing member 60a is installed in the communication groove 107a.
  • the fixed column 61a and the synchronizing slider 62a are both installed in the communication groove 107a.
  • the first cam 63a is installed in the first spiral groove 255a and can slide relative to the rotating part 251a in the first spiral groove 255a.
  • the second cam 64a is installed in the second spiral groove 265a and can slide relative to the rotating part 261a in the second spiral groove 265a.
  • One end of the fixing post 61a is installed in the third mounting hole on the side wall of the third groove, the other end is installed on the fourth mounting hole of the bump, and is fixedly connected to the hole wall of the fourth mounting hole.
  • the rotating part 251a drives the first cam 63a to slide in the first spiral groove 255a to drive the synchronous slider 62a to slide relative to the fixed column 61a, thereby driving the second cam 64a to slide in the first spiral groove 255a.
  • the two spiral grooves 265a slide relative to the rotating portion 261a, thereby driving the second auxiliary swing arm 26a to rotate relative to the base 10, thereby achieving synchronous rotation between the first auxiliary swing arm 25a and the second auxiliary swing arm 26a.
  • the first synchronization member 60a can drive the first auxiliary swing arm 25a to rotate relative to the base 10, thereby realizing the first auxiliary swing arm 25a and the second auxiliary swing arm 26a. synchronous rotation between them.
  • a spiral groove and a cam are used to realize synchronous transmission. Compared with the commonly used gears to realize synchronous transmission, it not only reduces the number of parts of the foldable mechanism 130, but also avoids The assembly error between various parts reduces the cost of the foldable mechanism 130, and the thickness of the first synchronizing member 60a (ie, the size along the Z-axis direction) is small, which helps to reduce the thickness of the foldable mechanism 130. , achieving a thin and light design of the foldable mechanism 130 .
  • synchronous components including gears may also be used to achieve synchronous transmission, which is not specifically limited in this application.
  • Figure 13 is a schematic structural diagram of the second connection component 20b, the second damping component 30b and the second synchronization component 60b in the foldable mechanism 130 shown in Figure 6.
  • Figure 14 is a schematic diagram of the structure shown in Figure 13 shows a schematic structural diagram of the second connecting component 20b, the second damping component 30b and the second synchronizing component 60b from another angle.
  • the first fixed frame 21b is provided with a receiving notch 211b, a mounting notch 212b, a sliding groove 213b, a first mounting groove 214b, a second mounting groove 215b, an escape groove 216b and a guide groove 217b.
  • a receiving notch 211b for the structures of the receiving notch 211b, the installation notch 212b, the slide groove 213b, the first installation groove 214b, the second installation groove 215b, the avoidance groove 216b and the guide groove 217b, please refer to the receiving notch 211a in the first fixed frame 21a above.
  • the chute 213b is located on the side of the installation notch 212b facing the positive direction of the Y-axis.
  • a first fixing block 218b protrudes from the bottom wall of the first mounting groove 214b
  • a second fixing block 219b protrudes from the bottom wall of the second mounting groove 215b.
  • the relief groove 216b is located on the side of the installation notch 212b facing the negative direction of the Y-axis.
  • the bottom wall of the escape groove 216b is provided with a sliding hole 2161b.
  • the first main swing arm 23b includes a rotating part 231b, a connecting part 232b and a sliding part 233b.
  • the connecting part 232b is connected between the rotating part 231b and the sliding part 233b.
  • the rotating part 231b includes two sub-rotating parts 234b.
  • the structure of the rotating part 231b is adapted to the structure of the mounting notch 212b.
  • the second connecting component 20b further includes a first pin 271b, which can pass through the through holes of the two sub-rotating parts 234b (not shown).
  • the first pin 271b can be installed in the installation notch 212b.
  • the first pin 271b is a circular axis, and the axis of the first pin 271b is parallel to the Y-axis direction and coaxial with the first pin 271a (as shown in Figures 11 and 12).
  • the two sub-rotating parts 234b can rotate relative to the first pin 271b to achieve a rotational connection between the rotating part 231b and the first pin 271b, thereby realizing a rotational connection between the first main swing arm 23b and the first fixed frame 21b. .
  • the structure of the sliding part 233b is adapted to the structure of the first sliding groove 101b.
  • the sliding part 233b is installed in the first sliding groove 101b, and can slide and rotate in the first sliding groove 101b to realize the sliding and rotating connection between the sliding part 233b and the base 10, thereby realizing the first main swing arm 23b and the base 10.
  • the sliding portion 233b is coaxial with the first sliding groove 101b.
  • the base 10 is an integrally formed structural member, the first sliding groove 101b does not require a shaft cover and a bracket to be formed together.
  • the sum of the thicknesses of the first sliding groove 101b and the sliding portion 233b is small, which can save time.
  • the space occupied by the folding mechanism 130 is conducive to achieving a lightweight and thin design of the folding mechanism 130 .
  • the first auxiliary swing arm 25b includes a rotating part 251b, a connecting part 252b and a sliding part 253b.
  • the connecting part 252b is connected between the rotating part 251b and the sliding part 253b.
  • a third fixing block 254b protrudes from the bottom surface of the sliding part 253b.
  • the structure of the sliding part 253b is adapted to the structure of the slide groove 213b.
  • the sliding part 253b can be installed in the sliding groove 213b, and can slide relative to the first fixed frame 21b in the first sliding groove 213b, so as to realize the sliding connection between the sliding part 253b and the first fixed frame 21b, thereby realizing the first auxiliary pendulum.
  • the rotating part 251b is provided with a through hole (not labeled) and a first spiral groove 255b.
  • the rotating part 251b is adapted to the structure of the first rotating groove 103b.
  • the second connecting component 20b further includes a first rotating shaft 281b, and the first rotating shaft 281b can pass through the through hole of the rotating part 251b.
  • the first rotation shaft 281b can be installed in the first rotation groove 103b.
  • the rotating part 251b can rotate relative to the first rotating shaft 281b to realize the rotating connection between the rotating part 251b and the base 10, and thereby realize the rotating connection between the first auxiliary swing arm 25b and the base 10.
  • the first rotation axis 281b is a circular axis, and the axis of the first rotation axis 281b is parallel to the Y-axis direction and coaxial with the first rotation axis 281a (as shown in Figures 11 and 12).
  • the rotation center of the rotation portion 251b of the first auxiliary swing arm 25b relative to the base 10 is the axis center of the first rotation shaft 281b. That is, the rotation center of the first auxiliary swing arm 25b relative to the base 10 is the axis center of the first rotation shaft 281b.
  • the second fixed frame 22b is provided with a receiving notch 221b, a mounting notch 222b, a sliding groove 223b, a first mounting groove 224b, a second mounting groove 225b, an escape groove 226b and a guide groove 227b.
  • the structures of the receiving notch 221b, the installation notch 222b, the chute 223b, the first installation groove 224b, the second installation groove 225b, the avoidance groove 226b and the guide groove 227b can respectively refer to the receiving notch 211b and the installation notch in the first fixed frame 21b.
  • 212b, slide groove 213b, first installation groove 214b, second installation groove 215b, escape groove 216b and guide groove 217b are not described again here.
  • the receiving notch 221b also penetrates the left side of the second fixing bracket 22b.
  • the installation notch 222b and the opening of the slide groove 223b are both located on the left side of the second fixing bracket 22b.
  • a first fixing block 228b protrudes from the bottom wall of the first mounting groove 224b, and a second fixing block 229b protrudes from the bottom wall of the second mounting groove 225b.
  • the opening of the escape groove 226b is located on the left side of the second fixed frame 22.
  • the bottom wall of the escape groove 226b is provided with a sliding hole 2261b.
  • the sliding hole 2261b extends in the positive direction of the X-axis and penetrates the right side of the second fixed frame 22b. .
  • the second main swing arm 24b includes a rotating part 241b, a connecting part 242b and a sliding part 243b.
  • the connecting part 242b is connected between the rotating part 241b and the sliding part 243b.
  • the rotating part 241b includes two sub-rotating parts 244b.
  • the structure of the rotating part 241b is adapted to the structure of the mounting notch 222b.
  • the second connecting component 20b further includes a second pin 272b, and the second pin 272b can pass through the through holes of the two sub-rotating parts 244b (not shown).
  • the second pin 272b can be installed in the installation notch 222b.
  • the second pin 272b is a circular axis, and the axis of the second pin 272b is parallel to the Y-axis direction and coaxial with the second pin 272a (as shown in Figures 11 and 12).
  • the two sub-rotating parts 244b can rotate relative to the second pin 272b to achieve a rotational connection between the rotating part 241b and the second pin 272b, thereby realizing a rotational connection between the second main swing arm 24b and the second fixed frame 22b. .
  • the structure of the sliding part 243b is adapted to the structure of the second sliding groove 102b.
  • the sliding part 243b is installed in the second sliding groove 102b, and can slide and rotate in the second sliding groove 102b, so as to realize the sliding and rotating connection between the sliding part 243b and the base 10, thereby realizing the second main swing arm 24b and the base 10.
  • the sliding part 243b is coaxial with the second sliding groove 102b.
  • the second sliding groove 102b does not require a shaft cover and a bracket to be formed in cooperation.
  • the sum of the thicknesses of the second sliding groove 102b and the sliding portion 243b is small, which can save time.
  • the space occupied by the folding mechanism 130 is conducive to achieving a lightweight and thin design of the folding mechanism 130 .
  • the second auxiliary swing arm 26b includes a rotating part 261b, a connecting part 262b and a sliding part 263b.
  • the connecting part 262b is connected between the rotating part 261b and the sliding part 263b.
  • a third fixing block 264b protrudes from the bottom surface of the sliding part 263b.
  • the structure of the sliding part 263b is adapted to the structure of the slide groove 223b.
  • the sliding part 263b can be installed in the slide groove 223b, and can slide relative to the second fixed frame 22b in the first slide groove 223b, so as to realize the sliding connection between the sliding part 263b and the second fixed frame 22b, thereby realizing the second auxiliary pendulum.
  • the rotating part 261b is provided with a through hole (not labeled) and a second spiral groove 265b.
  • the rotating portion 261b is adapted to the structure of the second rotating groove 104b.
  • the second connecting component 20b further includes a second rotating shaft 282b, and the second rotating shaft 282b passes through the through hole of the rotating part 261b.
  • the second rotation shaft 282b can be installed in the second rotation groove 104b.
  • the rotating part 261b can rotate relative to the second rotating shaft 282b to realize the rotating connection between the rotating part 261b and the base 10, and thereby realize the rotating connection between the second auxiliary swing arm 26b and the base 10.
  • the second rotation axis 282b is a circular axis, and the axis center of the second rotation axis 282b is parallel to the Y-axis direction and coaxial with the second rotation axis 282a (as shown in Figures 11 and 12).
  • the rotation center of the rotation portion 261b of the second auxiliary swing arm 26b relative to the base 10 is the axis center of the second rotation shaft 282b. That is, the rotation center of the second auxiliary swing arm 26b relative to the base 10 is the axis center of the second rotation shaft 282b.
  • the first fixed frame 21b drives the first main swing arm 23b to rotate relative to the first fixed frame 21b, and drives the first main swing arm 23b to rotate relative to the base 10 Sliding and rotating also drives the first auxiliary swing arm 25a to slide relative to the first fixed frame 21b, and the first auxiliary swing arm 25a to rotate relative to the base 10, and the second fixed frame 22b drives the second main swing arm 24b to relative to the second fixed frame.
  • the second connection component 20b is switched between the folded state and the flattened state.
  • the second damping component 30b has the same structure as the first damping component 30a (shown in Figures 11 and 12).
  • the first damping member 31b includes a first fixing part 311b, a second fixing part 312b, a third fixing part 313b, a first connecting part 314b and a second connecting part 315b.
  • the first fixing part 311b, the second fixing part 312b, the third fixing part 313b, the first connecting part 314b and the second connecting part 315b can respectively refer to the first fixing part 311a and the second fixing part 311a of the first damping member 31a above.
  • the relevant descriptions of the fixing part 312a, the third fixing part 313a, the first connecting part 314a and the second connecting part 315a will not be described again here.
  • the first fixing part 311b is installed in the first installation groove 214b
  • the second fixing part 312b is installed in the second installation groove 215b to achieve assembly between the first damping member 31b and the first fixing bracket 21b.
  • the third fixed portion 313b is fixedly connected to the sliding portion 253b of the first auxiliary swing arm 25b to achieve a fixed connection between the first damping member 31b and the first auxiliary swing arm 25b.
  • the first fixing block 218b is installed in the first fixing hole 316b
  • the second fixing block 219b is installed in the second fixing hole 317b
  • the third fixing block 254b is installed in the third fixing hole 318b.
  • the second damping member 32b includes a first fixing part 321b, a second fixing part 322b, a third fixing part 323b, a first connecting part 324b and a second connecting part 325b.
  • the first fixing part 321b, the second fixing part 322b, the third fixing part 323b, the first connecting part 324b and the second connecting part 325b can respectively refer to the first fixing part 311b and the second fixing part 311b of the first damping member 31b above.
  • the relevant descriptions of the fixing part 312b, the third fixing part 313b, the first connecting part 314b and the second connecting part 315b will not be described again here.
  • the first fixing part 321b is installed in the first installation groove 224b
  • the second fixing part 322b is installed in the second installation groove 225b to achieve assembly between the second damping member 32b and the second fixing bracket 22b.
  • the third fixed portion 323b is fixedly connected to the sliding portion 263b of the second auxiliary swing arm 26b to achieve a fixed connection between the second damping member 32b and the second auxiliary swing arm 26b.
  • the first fixing block 228b is installed in the first fixing hole 326b
  • the second fixing block 229b is installed in the second fixing hole 327b
  • the third fixing block 264b is installed in the third fixing hole 328b.
  • the second synchronizing member 60b and the first synchronizing member 60a have the same structure.
  • the second synchronization member 60b includes a fixed column 61b and a synchronization slide block 62b. Specifically, the second synchronizing member 60b is installed in the communication groove 107b.
  • the fixed column 61b and the synchronizing slider 62b are both installed in the communication groove 107b.
  • the first cam 63b is installed in the first spiral groove 255b and can slide relative to the rotating part 251b in the first spiral groove 255b.
  • the second cam 64b is installed in the second spiral groove 265b and can slide relative to the rotating part 261b in the second spiral groove 265b.
  • Figure 15 is a schematic structural view of the third connection component 20c in the foldable mechanism 130 shown in Figure 6.
  • Figure 16 is a view of the third connection component 20c shown in Figure 15 at another angle. Schematic.
  • the first fixed frame 21c is provided with a receiving notch 211c, a mounting notch 212c and a guide groove 213c.
  • the structure of the receiving notch 211c, the installation notch 212c and the guide groove 213c can be referred to the above mentioned receiving notch 211a, the installation notch 212a and the guide groove 217a of the first fixed frame 21a (as shown in Figures 11 and 12) The relevant descriptions will not be repeated here.
  • the installation notch 212c is located in the middle of the first fixing bracket 21c.
  • the first main swing arm 23c includes a rotating part 231c, a connecting part 232c and a sliding part 233c.
  • the connecting part 232c is connected between the rotating part 231c and the sliding part 233c.
  • the rotating part 231c includes two sub-rotating parts 234c.
  • the structure of the rotating part 231c is adapted to the structure of the mounting notch 212c.
  • the third connecting component 20c also includes a first pin 251c, which can pass through the through holes of the two sub-rotating parts 234c (not shown).
  • the first pin 251c can be installed in the installation notch 212c.
  • the first pin 251c is a circular axis, and the axis of the first pin 251c is parallel to the Y-axis direction and coaxial with the first pin 271a (as shown in Figures 11 and 12).
  • the two sub-rotating parts 234c can rotate relative to the first pin 251c to realize the rotational connection between the rotating part 231c and the first pin 251c, and thereby realize the rotational connection between the first main swing arm 23c and the first fixed frame 21c. .
  • the structure of the sliding part 233c is adapted to the structure of the first sliding groove 101c.
  • the sliding part 233c is installed in the first sliding groove 101c, and can slide and rotate in the first sliding groove 101c, so as to realize the sliding and rotating connection between the sliding part 233c and the base 10, thereby realizing the first main swing arm 23c and the base 10.
  • the sliding portion 233c is coaxial with the first sliding groove 101c.
  • the second fixed frame 22c is provided with a receiving notch 221c, a mounting notch 222c and a guide groove 223c.
  • the structures of the receiving notch 221c, the installation notch 222c and the guide groove 223c can refer to the above related descriptions of the receiving notch 211c, the installation notch 212c and the guide groove 213c of the first fixing frame 21c, which will not be described again here.
  • the receiving notch 221c also penetrates the left side of the second fixing frame 22c.
  • the opening of the installation notch 222b is located on the left side of the second fixing bracket 22c.
  • the second main swing arm 24c includes a rotating part 241c, a connecting part 242c and a sliding part 243c.
  • the connecting part 242c is connected between the rotating part 241c and the sliding part 243c.
  • the rotating part 241c includes two sub-rotating parts 244c.
  • the structure of the rotating part 241c is adapted to the structure of the mounting notch 222c.
  • the third connecting component 20c also includes a second pin 252c, which can pass through the through holes of the two sub-rotating parts 244c (not shown).
  • the second pin 252c can be installed in the installation notch 222c.
  • the second pin 252c is a circular axis, and the axis of the second pin 252c is parallel to the Y-axis direction and coaxial with the second pin 272a (as shown in Figures 11 and 12).
  • the two sub-rotating parts 244c can rotate relative to the second pin 252c to achieve a rotational connection between the rotating part 241c and the second pin 252c, thereby realizing a rotational connection between the second main swing arm 24c and the second fixed frame 22c. .
  • the structure of the sliding part 243c is adapted to the structure of the second sliding groove 102c.
  • the sliding part 243c is installed in the second sliding groove 102c, and can slide and rotate in the second sliding groove 102c, so as to realize the sliding and rotating connection between the sliding part 243c and the base 10, thereby realizing the second main swing arm 24c and the base 10.
  • the sliding portion 243c is coaxial with the second sliding groove 102c.
  • the first fixed frame 21c drives the first main swing arm 23c to rotate relative to the first fixed frame 21c, and drives the first main swing arm 23c relative to the base 10 Sliding and rotating
  • the second fixed frame 22c drives the second main swing arm 24c to rotate relative to the second fixed frame 22c, and drives the second main swing arm 24c to slide and rotate relative to the base 10, so as to achieve the folding state of the third connecting component 20c. Switch between the flat state and the flat state.
  • Figure 17 is a schematic structural view of the pressure plate assembly 40 in the foldable mechanism 130 shown in Figure 6.
  • Figure 18 is a schematic structural view of the pressure plate assembly 40 shown in Figure 17 from another angle.
  • the first pressure plate 41 includes a support part 411, an auxiliary part 412 and a guide slider 413.
  • the auxiliary part 412 and the guide slider 413 are both fixedly connected to the support part 411.
  • the first pressure plate 41 is an integrally formed structural member to improve the structural strength of the first pressure plate 41 and ensure the structural stability of the first pressure plate 41 .
  • the integrally formed first pressure plate 41 can reduce the structural parts of the foldable mechanism 130, facilitate the assembly of the foldable mechanism 130, reduce the cost of the foldable mechanism 130, and is conducive to the miniaturization design of the foldable mechanism 130. Moreover, the integrated first pressure plate 41 can reduce the number of structural parts of the foldable mechanism 130. The weight of the pressure plate 41 is small, which helps to achieve a lightweight design of the foldable mechanism 130 .
  • the first pressure plate 41 may also be an integrated structural member formed by assembly.
  • the auxiliary part 412 and the guide slider 413 may be fixedly connected to the support part 411 by welding or bonding.
  • the support part 411 is generally in the shape of a long plate. In this embodiment, the support portion 411 extends along the Y-axis direction.
  • the auxiliary part 412 is fixedly connected to the bottom surface of the supporting part 411 .
  • the auxiliary part 412 is provided with a sliding hole 414, and the opening of the sliding hole 414 is located on the right side of the auxiliary part 412.
  • the sliding hole 414 is recessed from the right side of the auxiliary part 412 in the direction of the left side (the negative direction of the X-axis in the figure), and penetrates the left side of the auxiliary part 412 . That is, the sliding hole 414 penetrates the auxiliary part 412 in the X-axis direction.
  • the sliding hole 414 is a square hole.
  • the sliding hole 414 may not penetrate the left side of the first pressure plate 41 , or the auxiliary part 412 may be enclosed with the supporting part 411 to form the sliding hole 414 .
  • the specific formation of the sliding hole 414 is discussed in this application. The method is not limited.
  • auxiliary parts 412 there are four auxiliary parts 412 , and the four auxiliary parts 412 are arranged at intervals along the Y-axis direction.
  • the four auxiliary parts 412 are respectively a front auxiliary part 412a, a rear auxiliary part 412b and a middle auxiliary part 412c.
  • the front auxiliary part 412a is fixedly connected to the front side of the support part 411
  • the rear auxiliary part 412b is fixedly connected to the rear side of the support part 411
  • the two middle auxiliary parts 412c are fixedly connected to the middle part of the support part 411.
  • the guide slider 413 is fixedly connected to the bottom surface of the supporting part 411 and is spaced apart from the auxiliary part 412 .
  • the guide slider 413 extends from the bottom surface of the support part 411 in a direction away from the top surface (the negative direction of the Z-axis in the figure).
  • the structure of the guide slider 413 is adapted to the structure of the guide groove (the guide groove 217a shown in Figure 11, the guide groove 217b shown in Figure 13, and the guide groove 213c shown in Figure 15).
  • the bottom surface of the guide slider 413 is an arc surface.
  • the six guide slide blocks 413 there are six guide slide blocks 413, and the six guide slide blocks 413 are arranged at intervals along the Y-axis direction.
  • the six guide slide blocks 413 are respectively two front guide slide blocks 413a, two rear guide slide blocks 413b and two middle guide slide blocks 413c.
  • the two front guide slide blocks 413a are fixedly connected to the front side of the support part 411 and are located on opposite sides of the front auxiliary part 412a.
  • the two rear guide sliders 413b are fixedly connected to the rear side of the support portion 411 and are located on opposite sides of the rear auxiliary portion 412b.
  • the two middle guide slide blocks 413c are fixedly connected to the middle part of the support part 411, are located between the two middle auxiliary parts 412c, and are spaced apart from the middle auxiliary part 412c.
  • the number of guide slide blocks 413 may be less than five or more than seven.
  • the number of guide slide blocks 413 is not specifically limited in this application.
  • the four first pressure plate swing arms 43 are respectively the first front pressure plate swing arm 43a, the first rear pressure plate swing arm 43b and the first middle pressure plate swing arm 43c. There are two first middle pressure plate swing arms 43c. In some other embodiments, the number of the first pressure plate swing arms 43 may be less than three or more than five. This application does not place a specific limit on the number of the first pressure plate swing arms 43 .
  • the first front pressure plate swing arm 43a includes a rotating part 431a, a connecting part 432a and a sliding part 433a.
  • the connecting part 432a is connected between the rotating part 431a and the sliding part 433a.
  • the sliding part 433a has a flat plate shape.
  • the sliding part 433a is adapted to the structure of the sliding hole 414 of the front auxiliary part 412a.
  • the sliding part 433a can pass through the sliding hole 414 of the front auxiliary part 412a, and can slide relative to the first pressure plate 41 in the sliding hole 414 of the front auxiliary part 412a, so as to realize the connection between the first front pressure plate swing arm 43a and the first pressure plate 41. sliding connection between.
  • the connecting portion 432a is provided with a mounting hole 434a, and the opening of the mounting hole 434a is located on the top surface of the connecting portion 432a.
  • the mounting hole 434a is recessed from the top to the bottom surface of the connecting portion 432a (the negative direction of the Z-axis in the figure), and penetrates the bottom surface of the connecting portion 432a. That is, the mounting hole 434a penetrates the connecting part 432a in the thickness direction of the connecting part 432a (the Z-axis direction in the figure).
  • the assembly hole 434a is a round hole. In some other embodiments, the assembly hole 434a may not penetrate the bottom surface of the connecting portion 432a, and/or the assembly hole 434a may also be a square hole or other special-shaped hole.
  • the structure of the rotating portion 431a is adapted to the structure of the first fitting groove 105a (shown in Figure 8).
  • the rotating part 431a is in the shape of an arc plate, and the axis of the rotating part 431a is parallel to the Y-axis direction.
  • the rotating portion 431a is installed in the first fitting groove 105a, and can slide and rotate in the first fitting groove 101a to achieve a sliding and rotating connection between the first front pressure plate swing arm 43a and the base 10. At this time, the rotating portion 431a is coaxial with the first fitting groove 105a.
  • the first front pressure plate swing arm 43a is parallel to the Y-axis direction relative to the rotation center of the base 10 .
  • the base 10 is an integrally formed structural member, the first fitting groove 105a does not require a shaft cover and a bracket to form.
  • the sum of the thicknesses of the first fitting groove 105a and the rotating part 431a Being smaller, the space occupied by the foldable mechanism 130 can be saved, which is beneficial to achieving a thin and light design of the foldable mechanism 130 .
  • the first rear pressure plate swing arm 43b has the same structure as the first front pressure plate swing arm 43a. Among them, the connecting portion 432b of the first rear pressure plate swing arm 43b is provided with an assembly hole 434b.
  • the structure of the sliding portion 433b in the first rear pressure plate swing arm 43b is adapted to the structure of the sliding hole 414 of the rear auxiliary portion 412b.
  • the sliding part 433b can pass through the sliding hole 414 of the rear auxiliary part 412b, and can slide relative to the first pressure plate 41 in the sliding hole 414 of the rear auxiliary part 412b, so as to realize the connection between the first rear pressure plate swing arm 43b and the first pressure plate 41. sliding connection between.
  • the structure of the rotating portion 431b of the first rear pressure plate swing arm 43b is adapted to the structure of the first matching groove 105b (shown in Figure 9).
  • the rotating portion 431b is installed in the first fitting groove 105b, and can slide and rotate in the first fitting groove 105b to achieve a sliding and rotating connection between the first rear pressure plate swing arm 43b and the base 10. At this time, the rotating portion 431b is coaxial with the first fitting groove 105b.
  • the rotation center of the first rear pressure plate swing arm 43b relative to the base 10 is parallel to the Y-axis direction and coaxial with the rotation center of the first front pressure plate swing arm 43a relative to the base 10.
  • the first middle pressure plate swing arm 43c has the same structure as the first front pressure plate swing arm 43a. Among them, the connecting portion 432c of the first middle pressure plate swing arm 43c is provided with an assembly hole 434c.
  • the structure of the sliding portion 433c of the first middle pressure plate swing arm 43c is adapted to the structure of the sliding hole 414 of the middle auxiliary portion 412c.
  • the sliding parts 433c of the two first middle pressure plate swing arms 43c can be respectively inserted into the sliding holes 414 of the two middle auxiliary parts 412c, and can slide relative to the first pressure plate 41 in the sliding holes 414 to realize the two first middle pressure plates.
  • the structure of the rotating portion 431c of the first middle pressure plate swing arm 43c is adapted to the structure of the first matching groove 105c (shown in Figure 10).
  • the rotating portions 431c of the two first middle pressure plate swing arms 43c can be respectively installed in the two first matching grooves 105c, and can slide and rotate in the first matching grooves 105c, so as to realize the two first middle pressure plate swing arms 43c and the two first middle pressure plate swing arms 43c.
  • the rotational connection between the bases 10. At this time, the rotating portion 431c is coaxial with the first fitting groove 105c.
  • the rotation center of the first middle pressure plate swing arm 43c relative to the base 10 is parallel to the Y-axis direction and coaxial with the rotation center of the first front pressure plate swing arm 43a relative to the base 10.
  • the front side of the support part 411 can be received in the receiving notch 211a of the first fixing frame 21a, and the rear side of the supporting part 411 can be received in the receiving notch 211b of the first fixing frame 21b. , the middle part of the supporting part 411 can be received in the receiving notch 211c of the first fixing frame 21c.
  • the front auxiliary part 412a can be received in the escape groove 216a of the first fixing frame 21a.
  • the sliding hole 414 of the front auxiliary part 412a is connected with the sliding hole 2161a of the first fixed frame 21a.
  • the sliding part 433a of the first front pressure plate swing arm 43a can also be penetrated through the sliding hole 2161a of the first fixed frame 21a, and can be slid on The hole 2161a slides relative to the first fixing bracket 21a.
  • the rear auxiliary part 412b can be received in the escape groove 216b of the first fixing frame 21b.
  • the sliding hole 414 of the rear auxiliary part 412b is connected with the sliding hole 2161b of the first fixed frame 21b.
  • the sliding part 433b of the first rear pressure plate swing arm 43b can also be passed through the sliding hole 2161b of the first fixed frame 21b, and can be slid on The hole 2161b slides relative to the first fixing bracket 21b.
  • the two front guide slide blocks 413a can be respectively installed in the two guide grooves 217a of the first fixed frame 21a, and can slide and rotate in the guide grooves 217a to achieve sliding between the first pressure plate 41 and the first fixed frame 21a. And rotate the connection.
  • the two rear guide slide blocks 413b can be respectively installed in the two guide grooves 217b of the first fixed frame 21b, and can slide and rotate in the guide grooves 217b to achieve sliding between the first pressure plate 41 and the first fixed frame 21b.
  • the two middle guide slide blocks 413c can be respectively installed in the two guide grooves 213c of the first fixed frame 21c, and can slide and rotate in the guide grooves 213c to achieve sliding between the first pressure plate 41 and the first fixed frame 21c. And rotate.
  • the structure of the second pressing plate 42 is the same as that of the first pressing plate 41 .
  • the second pressure plate 42 includes a support part 421, an auxiliary part 422 and a guide slider 423.
  • the auxiliary part 422 and the guide slider 423 are both fixedly connected to the support part 421.
  • the auxiliary part 422 and the guide slider 423 reference may be made to the above related descriptions of the support part 411, the auxiliary part 412 and the guide slider 413 in the first pressure plate 41, and will not be described again here.
  • the auxiliary part 422 is provided with a sliding hole 424.
  • the structure of the second pressure plate swing arm 44 is the same as that of the first pressure plate swing arm 43 .
  • there are four second pressure plate swing arms 44 and the four second pressure plate swing arms 44 are respectively the second front pressure plate swing arm 44a, the second rear pressure plate swing arm 44b and the second middle pressure plate swing arm 44c.
  • the connecting portion 442a of the second front pressure plate swing arm 44a is provided with an assembly hole 444a.
  • the structure of the sliding portion 443a in the second front pressure plate swing arm 44a is adapted to the structure of the sliding hole 424 of the front auxiliary portion 422a.
  • the sliding part 443a can pass through the sliding hole 424 of the front auxiliary part 422a, and can slide relative to the second pressure plate 42 in the sliding hole 424 of the front auxiliary part 422a, so as to realize the connection between the second front pressure plate swing arm 44a and the second pressure plate 42. sliding connection between.
  • the structure of the rotating portion 441a of the second front pressure plate swing arm 44a is adapted to the structure of the second matching groove 106a.
  • the rotating part 441a can be installed in the second fitting groove 106a (as shown in FIG. 8 ), and can slide and rotate in the second fitting groove 106a to realize the rotational connection between the second front pressure plate swing arm 44a and the base 10 .
  • the rotating portion 441a is coaxial with the second fitting groove 106a.
  • the second front pressure plate swing arm 44a is parallel to the Y-axis direction relative to the rotation center of the base 10, and is spaced apart from the first front pressure plate swing arm 43a relative to the rotation center of the base 10.
  • the second fitting groove 106a does not require a shaft cover and a bracket to form.
  • the sum of the thicknesses of the second fitting groove 106a and the rotating part 441a Being smaller, the space occupied by the foldable mechanism 130 can be saved, which is beneficial to achieving a thin and light design of the foldable mechanism 130 .
  • the second rear pressure plate swing arm 44b has the same structure as the second front pressure plate swing arm 44a.
  • the connecting portion 442b of the second rear pressure plate swing arm 44b is provided with a mounting hole 444b.
  • the structure of the sliding portion 443b in the second rear pressure plate swing arm 44b is adapted to the structure of the sliding hole 424 of the rear auxiliary portion 422b.
  • the sliding part 443b can pass through the sliding hole 424 of the rear auxiliary part 422b, and can slide relative to the second pressure plate 42 in the sliding hole 424 of the rear auxiliary part 422b, so as to realize the connection between the second rear pressure plate swing arm 44b and the second pressure plate 42. sliding connection between.
  • the structure of the rotating portion 441b in the second rear pressure plate swing arm 44b is adapted to the structure of the second matching groove 106b (shown in Figure 9).
  • the rotating portion 441b is installed in the second fitting groove 106b, and can slide and rotate in the second fitting groove 106b to achieve a sliding and rotating connection between the second rear pressure plate swing arm 44b and the base 10. At this time, the rotating portion 441b is coaxial with the second fitting groove 106b.
  • the rotation center of the second rear pressure plate swing arm 44b relative to the base 10 is parallel to the Y-axis direction and coaxial with the rotation center of the second front pressure plate swing arm 44a relative to the base 10.
  • the second middle pressure plate swing arm 44c has the same structure as the second front pressure plate swing arm 44a.
  • the connecting portion 442c of the second middle pressure plate swing arm 44c is provided with a mounting hole 444c.
  • the structure of the sliding part 443c in the second middle pressure plate swing arm 44c is adapted to the structure of the sliding hole 424 of the middle auxiliary part 422c.
  • the sliding parts 443c of the two second middle pressure plate swing arms 44c can respectively pass through the sliding holes 424 of the two middle auxiliary parts 422c, and can slide relative to the second pressure plate 42 in the sliding holes 424 to achieve each second middle pressure plate.
  • the structure of the rotating portion 441c in the second middle pressure plate swing arm 44c is adapted to the structure of the second matching groove 106c (shown in Figure 10).
  • the rotating parts 441c of the two second intermediate pressure plate swing arms 44c can be respectively installed in a second matching groove 106c, and can slide and rotate in the second matching groove 106c, so as to realize the connection between the two second intermediate pressure plate swing arms 44c and the base.
  • the rotating portion 441c is coaxial with the second fitting groove 106c.
  • the rotation center of the second middle pressure plate swing arm 44c relative to the base 10 is parallel to the Y-axis direction and coaxial with the rotation center of the second front pressure plate swing arm 44a relative to the base 10.
  • the front side of the support part 421 can be received in the receiving notch 221a of the second fixing frame 22a, and the rear side of the supporting part 421 can be received in the second fixing frame. 22b, the middle part of the support portion 421 can be received in the receiving notch 221c of the second fixing frame 22c.
  • the front auxiliary part 422a can be received in the escape groove 226a of the second fixing frame 22a.
  • the sliding hole 424 of the front auxiliary part 422a is connected with the sliding hole 2261a of the second fixed frame 22a.
  • the sliding part 443a of the second front pressure plate swing arm 44a can also be inserted into the sliding hole 2261a of the second fixed frame 22a, and can be slid on The hole 2261a slides relative to the second fixing bracket 22a.
  • the rear auxiliary part 422b can be received in the escape groove 226b of the second fixing bracket 22b.
  • the sliding hole 424 of the rear auxiliary part 422b is connected with the sliding hole 2261b of the second fixed frame 22b.
  • the sliding part 443b of the second rear pressure plate swing arm 44b can also be inserted into the sliding hole 2261a of the second fixed frame 22b, and can be slid on The hole 2261a slides relative to the second fixing bracket 22b.
  • the two front guide slide blocks 423a can be respectively installed in the two guide grooves 227a of the second fixed frame 22a, and can slide and rotate in the guide grooves 227a to achieve sliding between the second pressure plate 42 and the second fixed frame 22a. And rotate the connection.
  • the two rear guide slide blocks 423b can be respectively installed in the two guide grooves 227b of the second fixed frame 22b, and can slide and rotate in the guide grooves 227b to achieve sliding between the second pressure plate 42 and the second fixed frame 22b.
  • the two middle guide slide blocks 423c can be respectively installed in the two guide grooves 223c of the second fixed frame 22c, and can slide and rotate in the guide grooves 223c to achieve sliding between the second pressure plate 42 and the second fixed frame 22c. And rotate.
  • the first fixed frame 21a and the second fixed frame 22a rotate relative to the base 10 (as shown in Figure 7)
  • the first fixed frame 21a drives the first pressure plate 41 to slide and rotate relative to the first fixed frame 21a, and also drives the first pressure plate 41 slides relative to the first pressure plate swing arm 43, thereby driving the first pressure plate 41 and the first pressure plate swing arm 43 to rotate relative to the base 10
  • the second fixed frame 22a drives the second pressure plate 42 to slide and rotate relative to the second fixed frame 22a.
  • the second pressure plate 42 is driven to slide relative to the second pressure plate swing arm 44, thereby driving the second pressure plate 42 and the second pressure plate swing arm 44 to rotate relative to the base 10, thereby realizing mutual switching of the pressure plate assembly 40 between the folded state and the flattened state. .
  • Figure 19 is a schematic structural view of the flexible support plate 50 in the foldable mechanism 130 shown in Figure 6.
  • Figure 20 is a schematic structural view of the flexible support plate 50 shown in Figure 19 from another angle.
  • the flexible support plate 50 includes a flexible support part 51 , a first fixing part 52 and a second fixing part 53 .
  • the first fixing part 52 and the second fixing part 53 are both fixedly connected to the flexible support part 51 .
  • the flexible support plate 50 can be an integrally formed structural member to reduce the number of parts of the flexible support plate 50 , which not only facilitates the assembly of the flexible support plate 50 but also reduces the manufacturing cost of the flexible support plate 50 . It can be understood that the local thickness of the flexible support plate 50 can be made thin, which can reduce the thickness of the flexible support plate 50, help reduce the thickness of the foldable mechanism 130, and achieve a lightweight and thin design of the foldable mechanism 130.
  • the flexible support part 51 is in the shape of a strip plate.
  • the flexible support portion 51 extends along the Y-axis direction and can be bent around the Y-axis direction.
  • the flexible support part 51 is provided with a plurality of strip grooves 511 , and the opening of each strip groove 511 is located on the bottom surface of the flexible support part 51 to ensure the integrity of the top surface of the flexible support part 51 .
  • the opening of each strip groove 511 is located in the middle area of the bottom surface of the flexible support part 51 .
  • the strip groove 511 is recessed from the bottom surface of the flexible support part 51 in the direction of the top surface (the negative direction of the Z-axis in the figure), and penetrates the front side and the rear side of the flexible support part 51 .
  • a plurality of strip grooves 511 are arranged in parallel and at intervals.
  • the extending direction of the strip groove 511 is parallel to the Y-axis direction to increase the flexibility of the flexible support part 51 and facilitate the bending of the flexible support part 51 along the Y-axis direction.
  • the openings of the plurality of strip grooves 511 may also be located on the top surface of the flexible support part 51 .
  • the flexible support part 51 is also provided with a first escape groove 512 , a second escape groove 513 , a third escape groove 514 and a fourth escape groove 515 .
  • the openings of the first escape groove 512 , the second escape groove 513 , the third escape groove 514 and the fourth escape groove 515 are all located on the bottom surface of the flexible support part 51 , and are all connected to one or more strip grooves 511 .
  • first escape grooves 512 there are three first escape grooves 512 , and the three first escape grooves 512 are all located on the left side of the flexible support part 51 .
  • three first escape grooves 512 are arranged at intervals.
  • the three first relief grooves 512 are respectively the first front relief groove 512a, the first rear relief groove 512b and the first middle relief groove 512c.
  • the first front relief groove 512 a is located on the front side of the flexible support part 51
  • the first rear relief groove 512 b is located on the rear side of the flexible support part 51
  • the first middle relief groove 512 c is located in the middle of the flexible support part 51 .
  • the three second escape grooves 513 There are three second escape grooves 513 , and the three second escape grooves 513 are all located on the right side of the flexible support part 51 . Along the Y-axis direction, three second escape grooves 513 are arranged at intervals.
  • the three second relief grooves 513 are respectively the second front relief groove 513a, the second rear relief groove 513b and the second middle relief groove 513c.
  • the second front relief groove 513a is located on the front side of the flexible support part 51 and on the side of the first front relief groove 512a facing the negative direction of the Y-axis, and is spaced apart from the first front relief groove 512a.
  • the second rear relief groove 513b is located on the rear side of the flexible support part 51 and on the side of the first rear relief groove 512b facing the negative direction of the Y-axis, and is spaced apart from the first rear relief groove 512b.
  • the second middle relief groove 513c is located in the middle of the flexible support part 51 and on the side of the first middle relief groove 512c facing the negative direction of the Y-axis, and is spaced apart from the first middle relief groove 512c.
  • the two third relief grooves 514 are respectively the third front relief groove 514a and the third rear relief groove 514b
  • the two fourth relief grooves 515 are respectively the fourth front relief groove 515a and the fourth rear relief groove 515b.
  • the third front relief groove 514a and the fourth front relief groove 515a are both located on the front side of the flexible support part 51, and are both located on the side of the second front relief groove 513a away from the first front relief groove 512a, and are both connected to the second front relief groove 513a. Grooves 513a are provided at intervals.
  • the third rear escape groove 514b and the fourth rear escape groove 515b are both located on the rear side of the flexible support part 51, and are both located on the side of the second rear escape groove 513b away from the first rear escape groove 512b, and are both connected to the second rear escape groove 513b.
  • Grooves 513b are provided at intervals. Among them, along the X-axis direction, the third front relief groove 514a and the fourth front relief groove 515a are spaced apart and relatively arranged, and the third rear relief groove 514b and the fourth rear relief groove 515b are spaced apart and relatively arranged.
  • the first fixing part 52 is fixedly connected to the bottom surface of the flexible support part 51 and is spaced apart from the strip groove 511 . Specifically, the first fixing part 52 is fixedly connected to the edge area of the bottom of the flexible support part 51 . The first fixing part 52 extends from the bottom surface of the flexible support part 51 in a direction away from the top surface (positive Z-axis direction in the figure). Exemplarily, the first fixing part 52 is cylindrical.
  • first fixing parts 52 there are four first fixing parts 52, and the four first fixing parts 52 are all fixedly connected to the left side of the flexible support part 51.
  • the four first fixing parts 52 are arranged at intervals along the Y-axis direction.
  • the four first fixing parts 52 are respectively a first front fixing part 52a, a first rear fixing part 52b and a first middle fixing part 52c.
  • the first front fixing part 52a is fixedly connected to the front side of the flexible support part 51, and is located on the side of the first front escape groove 512a away from the third front relief groove 514a, and is spaced apart from the first front relief groove 512a.
  • the first rear fixing part 52b is fixedly connected to the rear side of the flexible support part 51 and is located on the side of the first rear relief groove 512b away from the third rear relief groove 514b and is spaced apart from the second rear relief groove 513b.
  • the two first middle fixing parts 52c are both fixedly connected to the middle part of the flexible support part 51, and are respectively located on opposite sides of the first middle relief groove 512c, and are spaced apart from the first middle relief groove 512c.
  • the second fixing part 53 is fixedly connected to the bottom surface of the flexible support part 51 and is spaced apart from the strip groove 511 and the first fixing part 52 .
  • the structure of the second fixing part 53 and the relationship between the second fixing part 53 and the flexible support part 51 can be referred to the relevant description of the first fixing part 52 and will not be described again here.
  • There are four second fixing parts 53 and the four second fixing parts 53 are all fixedly connected to the right side of the flexible support part 51 .
  • the four second fixing parts 53 are arranged at intervals.
  • the four second fixing parts 53 are respectively the second front fixing part 53a, the second rear fixing part 53b and the second middle fixing part 53c.
  • the first front fixing part 52a is installed in the assembly hole 434a of the first front pressure plate swing arm 43a
  • the first rear fixation part 52b is installed in the assembly hole 434b of the first rear pressure plate swing arm 43b.
  • the two first middle fixing parts 52c are respectively installed in the assembly holes 434c of the two first middle pressure plate swing arms 43c
  • the second front fixation part 53a is installed in the assembly holes 444a of the second front pressure plate swing arm 44a
  • the second rear fixation part 53b is installed in the assembly hole 444b of the second rear pressure plate swing arm 44b
  • the two second middle fixing parts 53c are respectively installed in the assembly holes 444c of the two second middle pressure plate swing arms 44c to realize the flexible support plate 50 and the pressure plate assembly 40 assembly between.
  • both the first pressure plate swing arm 43 and the second pressure plate swing arm 44 rotate relative to the base 10 (as shown in FIG. 7 ), thus driving the first fixing part 52 and the second pressure plate swing arm 44 .
  • the second fixed part 53 rotates relative to the base 10 , thereby driving the flexible support part 51 to fold or unfold relative to each other.
  • the flexible support plate 50 can be relatively folded or unfolded under the driving of the pressure plate assembly 40 . That is, the flexible support plate 50 can be switched between the folded state and the unfolded state driven by the pressure plate assembly 40 .
  • first pressure plate swing arm 43 and the second pressure plate swing arm 44 rotate relative to the base 10, relative displacement will occur with the base 10.
  • the displacement of the first pressure plate swing arm 43 and the second pressure plate swing arm 44 can match the dimensional change of the flexible support plate 50 due to bending, ensuring that the flexible support plate 50 remains flat and avoids flexible support.
  • the plate 50 is wrinkled, thereby improving the reliability of the foldable mechanism 130 .
  • FIG. 21 is a schematic cross-sectional structural diagram of the foldable mechanism 130 shown in FIG. 5 taken along I-I.
  • FIG. 22 is a schematic structural diagram of the foldable mechanism 130 shown in FIG. 21 in a folded state.
  • cutting along I-I refers to cutting along the plane where line I-I lies. Similar descriptions in this application can be understood in the same way.
  • the pressure plate assembly 40 When the foldable mechanism 130 is in the flattened state, the pressure plate assembly 40 is in the flattened state, the first pressure plate 41 and the second pressure plate 42 are located on both sides of the base 10 respectively, the flexible support plate 50 is relatively flat, and the top of the first pressure plate 41
  • the top surface ie, the top surface of the support part 411), the top surface of the second pressure plate 42 (ie, the top surface of the support part 421) and the top surface of the flexible support plate 50 (ie, the top surface of the flexible support part 51) are flush, and the first The top surface of the pressure plate 41 , the top surface of the second pressure plate 42 and the top surface of the flexible support plate 50 form a support surface 1302 .
  • the first front escape groove 512a avoids the sliding part 232a of the first main swing arm 23a (as shown in FIG. 11), and the first rear escape groove 512b avoids the sliding part 232b of the first main swing arm 23b (as shown in FIG. 13).
  • the first middle escape groove 512c escapes the sliding portion 232c of the first main swing arm 23c (as shown in Figure 15).
  • the second front relief groove 513a avoids the sliding portion 242a of the second main swing arm 24a (as shown in Figure 11), and the second rear relief groove 513b avoids the sliding portion 242b of the second main swing arm 24b (as shown in Figure 13).
  • the second middle escape groove 513c escapes the sliding portion 242c of the second main swing arm 24c (as shown in Figure 15).
  • the third front escape groove 514a avoids the rotating part 251a of the first auxiliary swing arm 25a (as shown in FIG. 11), and the third rear escape groove 514b avoids the rotating part 251b of the first auxiliary swing arm 25b (as shown in FIG. 13).
  • the fourth front relief groove 515a avoids the rotating part 261a of the second auxiliary swing arm 26a (as shown in FIG. 11), and the fourth rear relief groove 515b avoids the rotating part 261b of the second auxiliary swing arm 26b (as shown in FIG. 13).
  • each escape groove in the flexible support plate 50 can prevent the flexible support plate 50 from interfering with the swing arms in each connection assembly 20, so that the flexible support portion 51 does not It will be resisted by each swing arm and protrude relative to the top surface of the first pressure plate 41 and the top surface of the second pressure plate 42, ensuring that the top surface of the flexible support plate 50 is in contact with the top surface of the first pressure plate 41 and the top surface of the second pressure plate 42.
  • the pressure plate assembly 40 When the foldable mechanism 130 is in the folded state, the pressure plate assembly 40 is in the folded state, the first pressure plate 41 and the second pressure plate 42 are arranged oppositely, the flexible support plate 50 is bent and folded relative to each other, and the first fixed frame (as shown in Figure 11 A fixed frame 21a, a first fixed frame 21b shown in Figure 13 and a first fixed frame 21c shown in Figure 15), a second fixed frame (a second fixed frame 22a shown in Figure 11, a second fixed frame shown in Figure 13 22b and the second fixing frame 22c) shown in FIG. 15 , the first pressure plate 41 , the second pressure plate 42 and the flexible support plate 50 form an escape space 1303 .
  • the cross section of the avoidance space 1303 is in the shape of a "water drop". It should be noted that the cross section of the avoidance space 1303 refers to the cross section cut along the X-Z plane.
  • the bottom of the flexible support plate 50 is received in the escape groove 101 of the base 10 (as shown in FIG. 7 ). It can be understood that the design of the avoidance groove 101 in the base 10 can avoid the bottom of the flexible support plate 50 and avoid interference between the base 10 and the flexible support plate 50, so as to form a "water drop-shaped" avoidance space 1303.
  • Figure 23 is a partial cross-sectional structural diagram of the foldable terminal 1000 shown in Figure 2.
  • Figure 24 is a structural diagram of the foldable terminal 1000 shown in Figure 3 in a folded state. Among them, the foldable terminal 1000 shown in FIGS. 23 and 24 only shows the foldable mechanism 130 and the foldable part 230 of the display screen 200 .
  • first fixing bracket 21a (shown in Figure 11), the first fixing bracket 21b (shown in Figure 13) and the first fixing bracket 21c (shown in Figure 15) are fixedly connected to the first housing 110
  • the second fixing bracket 22a (shown in FIG. 11 ), the second fixing bracket 22b (shown in FIG. 13 ) and the second fixing bracket 22c (shown in FIG. 15 ) are fixedly connected to the second housing 120 .
  • first fixing bracket 21a, the first fixing bracket 21b and the first fixing bracket 21c can be fixedly connected to the first housing 110 through fasteners such as screws or bolts
  • the second fixing bracket 22c can be fixedly connected to the second housing 120 through fasteners such as screws or bolts.
  • the support surface 1302 formed by the first pressure plate 41 , the second pressure plate 42 and the flexible support plate 50 can support the foldable part 230 of the display screen 200 , not only to ensure good display of the display screen 200 , but also when the foldable part 230 is When touched, the foldable portion 230 is not easily damaged or dented due to external force, thereby improving the reliability of the display screen 200 .
  • the support surface 1302 can be flush with the top surface of the first housing 110 and the second housing 120 , so that the first pressure plate 41 , the second pressure plate 42 and the flexible support plate 50 can be flush with the first housing 110 Together with the second housing 120, the display screen 200 is supported, so that the foldable device 100 in a flat state can effectively support the display screen 200.
  • the support surface 1302 has a larger area and can better support the foldable portion 230, thereby improving the flexible support.
  • the foldable portion 230 of the display screen 200 is located inside the foldable mechanism 130 .
  • the foldable portion 230 is located in the avoidance space 1303.
  • the foldable mechanism 130 can avoid the R angle formed when the foldable part 230 is bent, so that the foldable part 230 will not be bent at a large angle, and the display screen 200 will be prevented from causing creases and other undesirable phenomena, which will help extend the The service life of the display screen 200.
  • a flexible support plate 50 is used to support the display screen 200.
  • the flexible support plate 50 is directly installed on the first pressure plate swing arm 43 and the second pressure plate swing arm 44.
  • the flexible support plate 50 can be assembled without using springs, which reduces the number of components of the foldable mechanism 130, not only simplifies the assembly process of the foldable mechanism 130, solves the problem of poor assembly accuracy, but also streamlines the foldable mechanism.
  • the structure of 130 makes the structure of the foldable mechanism 130 simple, which is beneficial to the lightweight design of the foldable terminal 1000.

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Abstract

本申请提供一种可折叠机构和可折叠终端，可折叠终端包括可折叠机构。可折叠机构的结构简单，有助于实现可折叠终端的轻量化设计。可折叠机构包括基座、压板组件和柔性支撑板，压板组件安装于基座，柔性支撑板安装于压板组件。压板组件包括第一压板摆臂，第一压板摆臂的转动部转动连接基座，以实现第一压板摆臂与基座之间的转动连接。柔性支撑板安装于第一压板摆臂，且可在第一压板摆臂的带动下发生弯折，柔性支撑板的弯折方向平行于第一压板摆臂相对基座的旋转中心。

Description

可折叠机构和可折叠终端
本申请要求于2022年03月31日提交中国专利局、申请号为202210334431.6、申请名称为“可折叠机构和可折叠终端”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
本申请涉及可折叠终端领域，尤其涉及一种可折叠机构和可折叠终端。
背景技术
随着科技的进步，大屏智能终端时代来临，可折叠终端因其大屏和方便携带等优点而备受用户青睐。目前，可折叠终端往往采用可折叠机构来实现折叠和展开。然而，现有的可折叠机构往往需要大量零部件来实现折叠和展开，导致可折叠机构的结构复杂，不利于可折叠终端的轻量化设计。
发明内容
本申请提供一种可折叠机构和可折叠终端，可简化可折叠机构的结构，实现可折叠终端的轻量化设计。
第一方面，本申请提供一种可折叠机构，包括基座、压板组件和柔性支撑板，压板组件安装于基座，柔性支撑板安装于压板组件。压板组件包括第一压板摆臂，第一压板摆臂的转动部转动连接基座，以实现第一压板摆臂与基座之间的转动连接。柔性支撑板安装于第一压板摆臂，且可在第一压板摆臂的带动下发生弯折，柔性支撑板的弯折方向平行于第一压板摆臂相对基座的旋转中心。
本申请所示可折叠机构中，柔性支撑板直接安装于第一压板摆臂，而不需要采用弹簧将柔性支撑板安装于基座，精简了可折叠机构的部件数量，不仅简化了可折叠机构的组装工艺，有利于提高可折叠机构的组装精度，还简化了可折叠机构的结构，使得可折叠机构的结构简单。在可折叠机构应用于可折叠终端时，有利于实现可折叠终端的轻量化设计。而且，柔性支撑板的局部厚度可以做到很薄，还有助于实现可折叠机构的轻薄化设计。
一种实施方式中，第一压板摆臂有四个，四个第一压板摆臂彼此间隔排布，以保证压板组件与基座之间的装配稳定性。
一种实施方式中，第一压板摆臂的转动部滑动且转动连接基座，以实现第一压板摆臂与基座的滑动且转动连接。第一压板摆臂相对基座转动时，会与基座产生相对位移，第一压板摆臂产生的位移与柔性支撑板因发生弯折而产生的尺寸变化相匹配，保证柔性支撑板平整，避免柔性支撑板产生褶皱。
一种实施方式中，可折叠机构的压板组件还包括第二压板摆臂，第二压板摆臂的转动部转动连接基座，以实现第二压板摆臂与基座之间的转动连接。柔性支撑板还安装于第二压板摆臂，且可在第二压板摆臂的带动下发生弯折，所以柔性支撑板的弯折方向还平行于第二压板摆臂相对基座的旋转中心。
本申请所示可折叠机构中，柔性支撑板直接安装于第一压板摆臂和第二压板摆臂，而不需要采用弹簧将柔性支撑板安装于基座，精简了可折叠机构的部件数量，不仅简化了可折叠机构的组装工艺，有利于提高可折叠机构的组装精度，还简化了可折叠机构的结构，使得可折叠机构的结构简单。在可折叠机构应用于可折叠终端时，有利于实现可折叠终端的轻量化设计。
一种实施方式中，第二压板摆臂有四个，四个第二压板摆臂彼此间隔排布，以保证压板组件与基座之间的装配稳定性。
一种实施方式中，第二压板摆臂的转动部滑动且转动连接基座，以实现第二压板摆臂与基座之间的滑动且转动连接。第二压板摆臂相对基座转动时，会与基座产生位移，第二压板摆臂产生的位移与柔性支撑板因发生弯折而产生的尺寸变化相匹配，保证柔性支撑板平整，避免柔性支撑板产生褶皱。
一种实施方式中，第一压板摆臂的连接部设有装配孔。第二压板摆臂的连接部设有装配孔。柔性支撑板包括柔性支撑部、第一固定部和第二固定部。柔性支撑部设有多个条形槽，多个条形槽平行且间隔排布。每一条形槽的延伸方向均平行于柔性支撑板的弯折方向，以保证柔性支撑板的柔性。第一固定部和第二固定部均固定连接于柔性支撑部的底面，第一固定部安装于第一压板摆臂的装配孔，第二固定部安装于第二压板摆臂的装配孔，以实现柔性支撑板与压板组件之间的装配。
一种实施方式中，多个条形槽的开口均位于柔性支撑板的底面，以保证柔性支撑板的顶面的完整性。条形槽自柔性支撑板的底面向远离顶面的方向凹陷，且贯穿柔性支撑板的前端面和后端面。其中，条形槽与第一固定部和第二固定部均间隔设置。
一种实施方式中，可折叠机构的压板组件还包括第一压板和第二压板。第一压板滑动连接第一压板摆臂的滑动部，以实现第一压板与第一压板摆臂之间的滑动连接。第二压板滑动连接第二压板摆臂的滑动部，以实现第二压板与第二压板摆臂之间的滑动连接。
可折叠机构处于展平状态时，第一压板和第二压板分别位于基座的相对两侧，第一压板的顶面、第二压板的顶面和柔性支撑板的顶面齐平，且共同形成支撑面。
可折叠机构应用于可折叠终端时，支撑面可支撑显示屏的可折叠部分，不仅可以保证显示屏的良好显示，而且在可折叠部分被触摸时，可折叠部分不容易因外力触摸而发生损坏或者凹坑，提高显示屏的使用可靠性。而且，由于柔性支撑板没有开孔设计，柔性支撑板的顶面为完整的平面，使得支撑面的面积较大，可更好地支撑可折叠部分，提高柔性支撑板对可折叠部分的支撑效果。
一种实施方式中，可折叠机构还包括连接组件，连接组件安装于基座。连接组件包括第一固定架和第二固定架。第一固定架滑动且转动连接第一压板。第二固定架滑动且转动连接第二压板。
可折叠机构处于折叠状态时，第一固定架、第二固定架、第一压板、第二压板和柔性支撑板围合形成避让空间，避让空间呈水滴状。
可折叠机构应用于可折叠终端时，避让空间可避让可折叠部分弯折时形成的R角，使得可折叠部分不会出现较大弯折，避免显示屏产生折痕等不良现象，有助于延长显示屏的使用寿命。
一种实施方式中，基座设有避让槽，可折叠机构处于折叠状态时，避让槽用于避让柔性支撑板的底部，可避免基座与柔性支撑板之间发生干涉，以便于形成呈水滴状的避让空间。
一种实施方式中，连接组件还包括第一主摆臂和第二主摆臂。第一主摆臂的转动部转动连接第一固定架，以实现第一主摆臂与第一固定架之间的转动连接。第一主摆臂的滑动部滑动且转动连接基座，以实现第一主摆臂与基座之间的滑动且转动连接。第二主摆臂的转动部转动连接第二固定架，以实现第二主摆臂与第二固定架之间的转动连接。第二主摆臂的滑动部滑动且转动连接基座，以实现第二主摆臂与基座之间的滑动且转动连接。
一种实施方式中，柔性支撑部还设有第一避让槽和第二避让槽，第一避让槽和第二避让槽的开口均位于柔性支撑部的底面。
可折叠机构处于展平状态时，第一避让槽用于避让第一主摆臂的滑动部，第二避让槽用于避让第二主摆臂的滑动部，以避免第一主摆臂和第二主摆臂与柔性支撑板之间发生干涉，使得柔性支撑部不会被第一主摆臂和第二主摆臂抵持而相对第一压板的顶面和第二压板的顶面凸出，保证柔性支撑板的顶面与第一压板的顶面和第二压板的顶面齐平。
其中，第一避让槽和第二避让槽均与一个或多个条形槽连通。
一种实施方式中，可折叠机构的连接组件还包括第一副摆臂和第二副摆臂。第一副摆臂的滑动部滑动连接第一固定架，以实现第一副摆臂与第一固定架之间的滑动连接。第一副摆臂的转动部转动连接基座，以实现第一副摆臂与基座之间的转动连接。第二副摆臂的滑动部滑动连接第二固定架，以实现第二副摆臂与第二固定架之间的滑动连接。第二副摆臂的转动部转动连接基座，以实现第二副摆臂与基座之间的转动连接。
一种实施方式中，柔性支撑部还设有第三避让槽和第四避让槽，第三避让槽和第四避让槽的开口均位于柔性支撑部的底面。可折叠机构处于展平状态时，第三避让槽用于避让第一副摆臂的转动部，第四避让槽用于避让第二副摆臂的转动部，以避免第一副摆臂和第二副摆臂与柔性支撑板之间发生干涉，使得柔性支撑部不会被第一副摆臂和第二副摆臂抵持而相对第一压板的顶面和第二压板的顶面凸出，保证柔性支撑板的顶面与第一压板的顶面和第二压板的顶面齐平。
其中，第三避让槽和第四避让槽均与一个或多个条形槽连通。
一种实施方式中，可折叠机构还包括阻尼组件，阻尼组件安装于连接组件。连接组件相对基座折叠或展开的过程中，阻尼组件可提供阻尼力。
阻尼组件包括第一阻尼件和第二阻尼件。第一阻尼件安装于第一固定架，并固定连接于第一副摆臂，且可在第一副摆臂的带动下相对第一固定架滑动。第二阻尼件安装于第二固定架，并固定连接于第二副摆臂，且可在第二副摆臂的带动下相对第二固定架滑动。
可折叠机构应用于可折叠终端时，用户在使用可折叠终端的过程中，比如可折叠终端处于折叠状态或展平状态、以及可折叠终端在折叠状态和展开状态之间切换时，用户可明显感受到阻尼组件提供的阻尼力，用户可体验到较佳的手感，提升用户的使用体验。
一种实施方式中，可折叠机构还包括同步件，同步件安装于基座，且滑动连接于连接组件。同步件滑动连接第一副摆臂和第二副摆臂，以使第一副摆臂和第二副摆臂相对基座同步转动。
一种实施方式中，第一副摆臂的转动部设有第一螺旋槽，第二副摆臂的转动部设有第二螺旋槽。
可折叠机构的同步件包括固定柱和同步滑块，固定柱安装于基座，同步滑块滑动连接固定柱。同步滑块的第一凸轮安装于第一螺旋槽，且可在第一螺旋槽内相对第一副摆臂的转动部滑动。同步滑块的第二凸轮安装于第二螺旋槽，且可在第二螺旋槽内相对第二副摆臂的转动部滑动。
第一副摆臂相对基座转动时，第一凸轮在第一螺旋槽内相对第一副摆臂的转动部滑动，以带动同步滑块相对固定柱滑动，带动第二凸轮在第二螺旋槽内相对第二副摆臂的转动部滑动，进而带动第二副摆臂相对基座转动，从而实现第一副摆臂和第二副摆臂之间的同步转动。
同理的，第二副摆臂相对基座转动时，同步件可带动第一副摆臂相对基座转动，从而实现第一副摆臂和第二副摆臂之间的同步转动。
一种实施方式中，基座为一体成型的结构件，可提高基座的整体强度，保证基座的结构稳定性。相比于现有的基座结构，本申请所示基座不需要利用螺丝或螺钉等固定件来实现支架与轴盖之间的装配，不仅便于可折叠机构进行装配，可以提高基座的装配精度，还精简了可折叠机构的零部件数量，有利于实现可折叠终端的轻量化设计。
一种实施方式中，基座设有第一配合槽，第一配合槽为弧形槽。第一压板摆臂的转动部呈弧形板状，第一压板摆臂的转动部安装于第一配合槽，且可在第一滑动槽内相对基座滑动且转动。
由于基座为一体成型的结构件，第一配合槽不需要通过轴盖和支架相配合的方式来形成，可折叠机构中，第一配合槽与第一压板摆臂的转动部之间的厚度之和较小，可以节省可折叠机构的空间占用，有利于实现可折叠机构的轻薄化设计。
一种实施方式中，基座设有第二配合槽，第二压板摆臂的转动部呈弧形板状，第二压板摆臂的转动部安装于第二配合槽，且可在第二配合槽内滑动且转动。
第二方面，本申请提供一种可折叠终端，包括第一壳体、第二壳体和上述任一种可折叠机构，可折叠机构连接于第一壳体和第二壳体之间。
本申请所示可折叠终端所采用的可折叠机构中，柔性支撑板直接安装于第一压板摆臂，而不需要采用弹簧将柔性支撑板安装于基座，精简了可折叠机构的部件数量，不仅简化了可折叠机构的组装工艺，有利于提高可折叠机构的组装精度，还简化了可折叠机构的结构，使得可折叠机构的结构简单，有利于实现可折叠终端的轻量化设计。而且，柔性支撑板的局部厚度可以做到很薄，还有助于实现可折叠终端的轻薄化设计。
一种实施方式中，可折叠终端还包括显示屏，显示屏包括第一显示部分、第二显示部分和可折叠部分，可折叠部分连接于第一显示部分和第二显示部分之间。第一显示部分安装于第一壳体，第二显示部分安装于第二壳体，可折叠部分与可折叠机构相对设置。
可折叠终端处于展开状态时，柔性支撑板的顶面支撑可折叠部分。
其中，第一压板和第二压板分别位于基座的相对两侧，第一压板的顶面、第二压板的顶面和柔性支撑板的顶面齐平，且共同形成支撑面，以支撑可折叠部分。
支撑面可支撑显示屏的可折叠部分，不仅可以保证显示屏的良好显示，而且在可折叠 部分被触摸时，可折叠部分不容易因外力触摸而发生损坏或者凹坑，提高显示屏的使用可靠性。而且，由于柔性支撑板没有开孔设计，柔性支撑板的顶面为完整的平面，使得支撑面的面积较大，可更好地支撑可折叠部分，提高柔性支撑板对可折叠部分的支撑效果。
一种实施方式中，可折叠终端处于折叠状态时，可折叠部分收容于可折叠机构的避让空间。
其中，第一固定架、第二固定架、第一压板、第二压板和柔性支撑板围合形成避让空间，避让空间呈水滴状。水滴状的避让空间可避让可折叠部分弯折时形成的R角，使得可折叠部分不会出现较大弯折，避免显示屏产生折痕等不良现象，有助于延长显示屏的使用寿命。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例所需要使用的附图进行说明。
图1是本申请实施例提供的一种可折叠终端在一种状态下的结构示意图；
图2是图1所示可折叠终端在第二种状态下的结构示意图；
图3是图2所示可折叠终端的分解结构示意图；
图4是图3所示可折叠终端中可折叠装置的分解结构示意图；
图5是图4所示可折叠装置中可折叠机构的结构示意图；
图6是图5所示可折叠机构的分解结构示意图；
图7是图6所示可折叠机构中基座的结构示意图；
图8是图7所示基座中第一部分的结构示意图；
图9是图7所示基座中第二部分的结构示意图；
图10是图7所示基座中第三部分的结构示意图；
图11是图6所示可折叠机构中第一连接组件、第一阻尼组件和第一同步件的结构示意图；
图12是图11所示第一连接组件、第一阻尼组件和第一同步件在另一个角度下的结构示意图；
图13是图6所示可折叠机构中第二连接组件、第二阻尼组件和第二同步件的结构示意图；
图14是图13所示第二连接组件、第二阻尼组件和第二同步件在另一个角度下的结构示意图；
图15是图6所示可折叠机构中第三连接组件的结构示意图；
图16是图15所示第三连接组件在另一个角度下的结构示意图；
图17是图6所示可折叠机构中压板组件的结构示意图；
图18是图17所示压板组件在另一个角度下的结构示意图；
图19是图6所示可折叠机构中支撑板的结构示意图；
图20是图19所示支撑板在另一个角度下的结构示意图；
图21是图5所示可折叠机构沿I-I处剖开的剖面结构示意图；
图22是图21所示可折叠机构处于折叠状态下的结构示意图；
图23是图2所示可折叠终端的局部剖面结构示意图；
图24是图23所示可折叠终端处于折叠状态下的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。
请参阅图1和图2，图1是本申请实施例提供的一种可折叠终端1000在一种状态下的结构示意图，图2是图1所示可折叠终端1000在第二种状态下的结构示意图。
可折叠终端1000可以为手机、平板电脑、个人计算机、多媒体播放器、电子书阅读器、笔记本电脑、车载设备或可穿戴设备等可折叠的电子产品。本实施例中，可折叠终端1000为可折叠手机。即，可折叠终端1000为可以在折叠状态和展开状态之间切换的手机。
其中，为了便于描述，定义所示可折叠终端1000的长度方向为X轴方向，可折叠终端1000的长度方向为Y轴方向，可折叠终端1000的厚度方向为Z轴方向，X轴方向、Y轴方向和Z轴方向两两相互垂直。
需要说明的是，本申请实施例中所提及的平行和垂直等关于相对位置关系的限定词，均是针对当前工艺水平而言的，而不是数学意义上绝对的严格的定义，允许存在少量偏差，近似于平行和近似于垂直均可以。例如，A与B平行，是指A与B之间平行或者近似于平行，A与B之间的夹角在0度～10度之间均可。例如，A与B垂直，是指A与B之间垂直或者近似于垂直，A与B之间的夹角在80度～100度之间均可。
本实施例中，可折叠终端1000的转动轴线的延伸方向为Y轴方向。即，可折叠终端1000能够绕Y轴方向相对展开或相对折叠。其中，图1所示可折叠终端1000处于折叠状态，可折叠终端1000沿X轴方向上的尺寸较小，可折叠终端1000便于携带。图2所示可折叠终端1000处于展开状态，可折叠终端1000沿X轴方向上的尺寸较大，可折叠终端1000具有较大的显示面积。示例性的，图2所示可折叠终端1000的展开角度α为180度。即，图2所示可折叠终端1000处于展平状态。
需要说明的是，本申请实施例举例说明的角度均允许存在少许偏差。例如，图2所示可折叠终端1000的展开角度α为180度是指，α可以为180度，也可以大约为180度，比如170度、175度、185度和190度等。后文中举例说明的角度可做相同理解。
应当理解的是，本申请实施例所示可折叠终端1000为可发生一次折叠的终端。在其他一些实施例中，可折叠终端1000也可以为可发生多次(两次以上)折叠的终端。此时，可折叠终端1000可以包括多个部分，相邻两个部分可相对靠近折叠至可折叠终端1000处于折叠状态，相邻两个部分也可相对远离展开至可折叠终端1000处于展开状态。
请一并参阅图3，图3是图2所示可折叠终端1000的分解结构示意图。
可折叠终端1000包括可折叠装置100和显示屏200，显示屏200安装于可折叠装置100。显示屏200包括背离可折叠装置100的显示面(图未标)，显示面用以显示文字、图像或视频等信息。本实施例中，显示屏200包括第一显示部分210、第二显示部分220和可折叠部分230，可折叠部分230连接于第一显示部分210和第二显示部分220之间。其中，可 折叠部分230可绕Y轴方向发生弯折。
如图1所示，可折叠终端1000处于折叠状态时，第一显示部分210和第二显示部分220相对设置，可折叠部分230发生弯折。此时，显示屏200处于折叠状态，显示屏200的外露面积比较少，可大大降低显示屏200被损坏的概率，实现对显示屏200的有效保护。如图2所示，可折叠终端1000处于展开状态时，第一显示部分210和第二显示部分220相对展开，可折叠部分230不发生弯折而展平。此时，第一显示部分210、第二显示部分220和可折叠部分230之间的夹角均为α，显示屏200具有大面积的显示区域，实现可折叠终端1000的大屏显示，提高用户的使用体验。
应当理解的是，本申请实施例所示可折叠终端1000采用向内折叠的方式进行折叠，处于折叠状态的可折叠终端1000的显示屏200位于可折叠装置100的内侧。在其他一些实施例中，可折叠终端1000也可以采用向外折叠的方式进行折叠，此时，处于折叠状态的可折叠终端1000的显示屏200位于可折叠装置100的外侧。
请一并参阅图4，图4是图3所示可折叠终端1000中可折叠装置100的分解结构示意图。
本实施例中，可折叠装置100包括第一壳体110、第二壳体120以及可折叠机构130，可折叠机构130连接于第一壳体110和第二壳体120之间，以实现第一壳体110和第二壳体120之间的转动连接。具体的，第一壳体110承载第一显示部分210，第二壳体120承载第二显示部分220。换言之，第一显示部分210安装于第一壳体110，第二显示部分220安装于第二壳体120。其中，可折叠机构130与可折叠部分230相对设置。
第一壳体110和第二壳体120可通过可折叠机构130相对转动，使得可折叠装置100在折叠状态和展开状态之间相互切换。具体的，第一壳体110和第二壳体120可相对转动至相对设置，以使可折叠装置100处于折叠状态，如图1所示。此时，可折叠机构130处于折叠状态。第一壳体110和第二壳体120也可相对转动至相对展开，以使可折叠装置100处于展开状态，如图2所示。此时，可折叠机构130处于展开状态。示例性的，图2所示可折叠终端1000处于展平状态，第一壳体110和第二壳体120之间的夹角为α。此时，可折叠机构130处于展平状态。
第一壳体110设有第一收容槽1101，第一收容槽1101位于第一壳体110朝向第二壳体120的一侧。第一收容槽1101的开口位于第一壳体110的顶面。第一收容槽1101自第一壳体110的顶面向底面的方向凹陷，且贯穿第一壳体110的右侧面。
第二壳体120和第一壳体110的结构相同，且相对可折叠机构130镜像对称。第二壳体120设有第二收容槽1201，第二收容槽1201位于第二壳体120朝向第一壳体110的一侧。第二收容槽1201的开口位于第二壳体120的顶面。第二收容槽1201自第二壳体120的顶面向底面的方向凹陷，且贯穿第二壳体120朝向第一壳体110的侧面。
可折叠装置100处于展平状态时，即第一壳体110和第二壳体120之间的夹角为α时，第一收容槽1101和第二收容槽1201围合形成收容空间1301。可折叠机构130安装于收容空间1301。其中，部分可折叠机构130安装于第一壳体110的第一收容槽1101，部分可折叠机构130安装于第二壳体120的第二收容槽1201。
需要说明的是，本申请实施例描述可折叠终端1000时所采用“顶”、“底”、“左”、“右”、 “前”和“后”等方位用词主要依据可折叠终端1000于附图2中的展示方位进行阐述，以朝向Z轴正方向为“顶”，以朝向Z轴负方向为“底”，以朝向X轴正方向为“右”，以朝向X轴负方向为“左”，以朝向Y轴正方向为“后”，以朝向Y轴负方向为“前”，其并不形成对可折叠终端1000于实际应用场景中的方位的限定。
现有的可折叠机构中，往往都采用浮板来实现对屏幕的支撑，浮板一般都采用弹簧安装于基座。浮板在弹簧的作用下相对基座下沉，并在摆臂的作用下相对基座上浮，可折叠机构中需要利用较多的部件来驱动浮板相对基座运动，使得可折叠机构组装复杂，而且容易出现组装精度差的问题，导致可折叠机构的结构复杂，不利于可折叠终端的轻量化设计。此外，还需要在浮板上进行开孔设计来避让各个摆臂，防止浮板与各个摆臂之间发生干涉的问题，无法实现对屏幕的完全支撑，屏幕极易出现凹痕，影响用户的使用体验。接下来，将对本申请实施例所示可折叠终端1000中可折叠机构130的结构进行描述。
请参阅图5和图6，图5是图4所示可折叠装置100中可折叠机构130的结构示意图，图6是图5所示可折叠机构130的分解结构示意图。
可折叠机构130包括基座10、连接组件20、阻尼组件30、压板组件40和柔性支撑板50。连接组件20和压板组件40均安装于基座10，均可相对基座10折叠或展开，从而可在折叠状态和展开状态之间相互转换。阻尼组件30安装于连接组件20，且可在连接组件20的带动下相对基座10折叠或展开，从而可在折叠状态和展开状态之间相互转换。柔性支撑板50安装于压板组件40，且可在压板组件40的带动下相对折叠或相对展开，从而可在折叠状态和展开状态之间相互转换。示例性的，基座10沿Y轴方向延伸。
本实施例中，连接组件20有三个，三个连接组件20沿Y轴方向彼此间隔排布。三个连接组件20分别为第一连接组件20a、第二连接组件20b和第三连接组件20c，第三连接组件20c位于第一连接组件20a和第二连接组件20b之间。第一连接组件20a位于可折叠机构130的前侧，第二连接组件20b位于可折叠机构130的后侧，第三连接组件20c位于可折叠机构130的中部。在其他一些实施例中，连接组件20也可以有一个、两个或四个以上，本申请对连接组件20的数量不做具体限制。
第一连接组件20a包括第一固定架21a、第二固定架22a、第一主摆臂23a、第二主摆臂24a、第一副摆臂25a和第二副摆臂26a。第一主摆臂23a转动连接第一固定架21a，并滑动且转动连接基座10。第二主摆臂24a转动连接第二固定架22a，并滑动且转动连接基座10a。第一副摆臂25a滑动连接第一固定架21a，且转动连接基座10。第二副摆臂26a滑动连接第二固定架22a，且转动连接基座10。
其中，第一连接组件20a在折叠状态和展开状态之间切换时，第一固定架21a、第一主摆臂23a和第一副摆臂25a相对基座10转动的方向为第一方向，第二固定架22a、第二主摆臂24a和第二副摆臂26a相对基座10转动的方向为第二方向，第二方向与第一方向相反。
示例性的，第一连接组件20a自折叠状态切换至展开状态时，第一固定架21a、第一主摆臂23a和第一副摆臂25a相对基座10沿逆时针方向转动，第二固定架22a、第二主摆臂24a和第二副摆臂26a相对基座10沿顺时针方向转动。第一连接组件20a自展开状态切换至折叠状态时，第一主摆臂23a和第一副摆臂25a相对基座10沿顺时针方向转动，第二主摆臂24a和第二副摆臂26a相对基座10沿逆时针方向转动。
需要说明的是，第二连接组件20b与第一连接组件20a可以是相同或相似的组件、对称或部分对称的结构、或者不同的结构。其中，第二连接组件20b可与第一连接组件20a呈中心对称。第二连接组件20b中各个部件的基础结构、部件之间的连接关系、以及部件与组件之外的部件之间的连接关系，均可以参照第一连接组件20a的相关设计，第二连接组件20b与第一连接组件20a在部件的细节结构或位置排布上可以不同。
本实施例中，第二连接组件20b包括第一固定架21b、第二固定架22b、第一主摆臂23b、第二主摆臂24b、第一副摆臂25b和第二副摆臂26b。其中，第二连接组件20b的各部件结构、以及各部件与基座10、压板组件40和阻尼组件30之间的连接关系可以参照第一连接组件20a的相关描述。
第三连接组件20c包括第一固定架21c、第二固定架22c、第一主摆臂23c和第二主摆臂24c。其中，第三连接组件20c的各部件结构、以及各部件与基座10、压板组件40和阻尼组件30之间的连接关系可以参照第一连接组件20a的相关描述。在其他一些实施例中，第三连接组件20c也可以包括第一副摆臂和第二副摆臂(图未示)，本申请对此不做具体限定。
需要说明的是，第一连接组件20a的第一固定架21a、第二连接组件20b的第一固定架21b和第三连接组件20c的第一固定架21c可以为彼此独立的结构件，也可以为一体式结构件的多个部分。和/或，第一连接组件20a的第二固定架22a、第二连接组件20b的第二固定架22b和第三连接组件20c的第二固定架22c可以为彼此独立的结构件，也可以为一体式结构件的多个部分。
应当理解的是，本申请实施例中所提及的“和/或”是指“和”和“或”的情况均可。比如，A和/或B包括仅有A存在、仅有B存在、以及A和B同时存在三种情况，后文关于“和/或”的描述可做相同理解。
此外，可折叠机构130还包括同步件60，同步件60安装于基座10，且与连接组件20滑动连接。本实施例中，同步件60有两个，两个同步件60沿Y轴方向彼此间隔排布。两个同步件60分别为第一同步件60a和第二同步件60b。第一同步件60a安装于基座10的前侧，且滑动连接第一副摆臂25a和第二副摆臂26a，以使第一副摆臂25a和第二副摆臂26a相对基座10同步转动。第二同步件60b安装于基座10的后侧，且滑动连接第一副摆臂25b和第二副摆臂26b，以使第一副摆臂25b和第二副摆臂26b相对基座10同步转动。
需要说明的是，第二同步件60b与第一同步件60a可以是相同或相似的组件、对称或部分对称的结构、或者不同的结构。其中，第二同步件60b可与第一同步件60a呈镜像对称。第二同步件60b中各个部件的基础结构、部件之间的连接关系、以及部件与组件之外的部件之间的连接关系，均可以参照第一同步件60a的相关设计，第二同步件60b与第一同步件60a在部件的细节结构或位置排布上可以不同。
本实施例中，阻尼组件30有两个，两个阻尼组件30沿Y轴方向彼此间隔排布。两个阻尼组件30分别为第一阻尼组件30a和第二阻尼组件30b，第一阻尼组件30a安装于第一连接组件20a。在第一连接组件20a相对基座10折叠或展开的过程中，第一阻尼组件30a可提供阻尼力。第二阻尼组件30b安装于第二连接组件20b。在第二连接组件20b相对基座10折叠或展开的过程中，第二阻尼组件30b可提供阻尼力。用户在使用可折叠终端1000 的过程中，比如可折叠终端1000处于折叠状态或展平状态时，以及可折叠终端1000在折叠状态和展开状态之间切换时，用户均可以明显感受到第一阻尼组件30a和第二阻尼组件30b提供的阻尼力，用户可以体验到较佳的手感，从而提升用户的使用体验。
在其他一些实施例中，阻尼组件30也可以有三个，三个阻尼组件30分别为第一阻尼组件30a、第二阻尼组件30b和第三阻尼组件(图未示)，第三阻尼组件安装于第三连接组件20c。在第三连接组件20c相对基座10折叠或展开的过程中，第三阻尼组件可提供阻尼力。或者，阻尼组件30也可以有一个或四个以上，本申请对阻尼组件30的数量不做具体限制。
本实施例中，第一阻尼组件30a包括第一阻尼件31a和第二阻尼件32a。第一阻尼件31a安装于第一固定架21a，并固定连接于第一副摆臂25a，且可在第一副摆臂25a的带动下相对第一固定架21a滑动。第二阻尼件32a安装于第二固定架22a，并固定连接于第二副摆臂26a，且可在第二副摆臂26a的带动下相对第二固定架22a滑动。
需要说明的是，第二阻尼组件30b与第一阻尼组件30a可以是相同或相似的组件、对称或部分对称的结构、或者不同的结构。其中，第二阻尼组件30b可与第一阻尼组件30a呈镜像对称。第二阻尼组件30b中各个部件的基础结构、部件之间的连接关系、以及部件与组件之外的部件之间的连接关系，均可以参照第一阻尼组件30a的相关设计，第二阻尼组件30b与第一阻尼组件30a在部件的细节结构或位置排布上可以不同。
本实施例中，第二阻尼组件30b包括第一阻尼件31b和第二阻尼件32b。第一阻尼件31b安装于第一固定架21b，并固定连接于第一副摆臂25b，且可在第一副摆臂25b的带动下相对第一固定架21b滑动。第二阻尼件32b安装于第二固定架22b，并固定连接于第二副摆臂26b，且可在第二副摆臂26b的带动下相对第二固定架22b滑动。其中，第二阻尼组件30b的各部件结构、以及各部件与基座10、第二连接组件20b和压板组件40之间的连接关系可以参照第一阻尼组件30a的相关描述。
压板组件40与连接组件20滑动且转动连接。本实施例中，压板组件40包括第一压板41、第二压板42、第一压板摆臂43和第二压板摆臂44。第一压板41的前侧滑动且转动连接第一固定架21a，第一压板41的后侧滑动且转动连接第一固定架21b，第一压板41的中部滑动且转动连接第一固定架21c。第二压板42的前侧滑动且转动连接第二固定架22a，第二压板42的后侧滑动且转动连接第二固定架22b，第二压板42的中部滑动且转动连接第二固定架22c。其中，第一压板摆臂43和第二压板摆臂44均有四个。沿Y轴方向，四个第一压板摆臂43彼此间隔排布，四个第二压板摆臂44彼此间隔排布。在其他一些实施例中，第一压板摆臂43也可以有一个、两个或四个以上，和/或，第二压板摆臂44也可以有一个、两个或四个以上，本申请对第一压板摆臂43和第二压板摆臂44的数量不做具体限制。
每一第一压板摆臂43均滑动连接第一压板41，并滑动且转动连接基座10。每一第二压板摆臂44均滑动连接第二压板42，并滑动且转动连接基座10。其中，第一压板摆臂43和第二压板摆臂44相对基座10的旋转中心均平行于Y轴方向。在其他一些实施例中，每一第一压板摆臂43也可以转动连接基座10，和/或，每一第二压板摆臂44也可以转动连接基座10。
柔性支撑板50安装于第一压板摆臂43和第二压板摆臂44，且可在第一压板摆臂43和第二压板摆臂44的带动下发生弯折以相对折叠或相对展开，以实现在折叠状态和展开状态之间的相互转换。其中，柔性支撑板50的弯折方向为Y轴方向，且平行于第一压板摆臂43和第二压板摆臂44相对基座10的旋转中心。需要说明的是，柔性支撑板50的弯折方向为Y轴是指，柔性支撑板50可绕Y轴方向发生弯折。
请参阅图7，图7是图6所示可折叠机构130中基座10的结构示意图。
基座10设有避让槽101，避让槽101的开口位于基座10的顶面。具体的，避让槽101的开口位于基座10的顶面的中间区域。避让槽101自基座10的顶面向底面的方向(图示Z轴负方向)凹陷。其中，避让槽101沿Y轴延伸。避让槽101弧形槽。即，避让槽101的槽底壁为弧形面。
本实施例中，基座10包括第一部分10a、第二部分10b和第三部分10c，第一部分10a、第二部分10b和第三部分10c沿Y轴方向依次排布，第三部分10c连接于第一部分10a和第二部分10b之间。第一部分10a位于基座10的前侧，且可与第一连接组件20a和第一同步件60a(如图6所示)配合连接。第二部分10b位于基座10的后侧，且可与第二连接组件20b和第二同步件60b(如图6所示)配合连接。第三部分10c位于基座10的中部，且可与第三连接组件20c(如图6所示)配合连接。
需要说明的是，第一部分10a和第二部分10b可以是相同或相似的组件、对称或部分对称结构、或者不同结构。示例性的，第一部分10a和第二部分10b可呈中心对称，以提高基座10的对称性，简化基座10的整体结构，提高基座10的结构稳定性，还可降低基座10的加工成本。其中，第二部分10b中各个部件的基础结构、部件之间的连接关系、以及部件与组件之外的部件之间的连接关系，均可以参照第一部分10a的相关设计，第二部分10b与第一部分10a在部件的细节结构或位置排布上可以不同。
本实施例中，基座10为一体成型的结构件，以提高基座10的整体强度，保证基座10的结构稳定性。相比于现有的基座结构，本申请实施例所示基座不需要利用螺丝或螺钉等固定件来实现支架和轴盖之间的装配，精简了可折叠机构130的零部件数量，便于对可折叠机构130进行装配，还可以提高基座10的装配精度。
其中，基座10可采用高强度和耐磨的材料制成，以使基座10具有较高的强度和较好的耐磨损，避免因基座10磨损而影响可折叠机构130的使用可靠性，保证可折叠机构130的使用体验。示例性的，不锈钢或钛合金等高强耐磨金属材料一体化形成，或者，基座10可采用不锈钢材料和高强塑胶材料通过注塑一体化形成，或者，基座10可采用钛合金和高强塑胶材料通过注塑一体化形成，或者，基座10可采用铝合金和高强塑胶材料通过注塑一体化形成。
请参阅图7和图8，图8是图7所示基座10中第一部分10a的结构示意图。
基座10的第一部分10a设有第一滑动槽101a、第二滑动槽102a、第一转动槽103a、第二转动槽104a、第一配合槽105a和第二配合槽106a。第一滑动槽101a、第一转动槽103a和第一配合槽105a均位于第一部分10a的左侧，且均贯穿第一部分10a的左侧面和避让槽101的槽底壁。沿Y轴负方向，第一配合槽105a、第一滑动槽101a和第一转动槽103a依次间隔排布。第二滑动槽102a、第二转动槽104a和第二配合槽106a均位于第一部分10a 的右侧，且均贯穿第一部分10a的右侧面和避让槽101的槽底壁。沿Y轴负方向，第二配合槽106a、第二滑动槽102a和第二转动槽104a依次间隔排布。
沿Y轴方向上，第一滑动槽101a和第二滑动槽102a间隔设置。沿X轴方向上，第一转动槽103a和第二转动槽104a间隔且相对设置，第一配合槽105a和第二配合槽106a间隔且相对设置。其中，第一滑动槽101a、第二滑动槽102a、第一配合槽105a和第二配合槽106a均为弧形槽。即，第一滑动槽101a、第二滑动槽102a、第一配合槽105a和第二配合槽106a的槽底壁均为弧形面。
第一转动槽103a包括两个第一槽侧壁(图未标)，沿Y轴方向上，两个第一槽侧壁间隔且相对设置。每一第一槽侧壁设有第一安装孔(图未标)，第一安装孔沿Y轴方向延伸。其中，两个第一安装孔均为圆孔，且同轴心设置。
需要说明的是，本申请实施例所提及的“同轴心”是指轴心的延长线彼此重合。比如，A与B同轴心是指，A的轴心的延长线与B的轴心的延长线重合，后文有关“同轴心”的描述可做相同理解。
第二转动槽104a包括两个第二槽侧壁(图未标)，沿Y轴方向上，两个第二槽侧壁间隔且相对设置。每一第二槽侧壁设有第二安装孔(图未标)，第二安装孔沿Y轴方向延伸。其中，两个第二安装孔均为圆孔，且同轴心设置。沿X轴方向上，每一第二安装孔和一个第一安装孔间隔设置。
此外，基座10的第一部分10a还设有连通槽107a，连通槽107a的开口位于避让槽101的槽底壁。连通槽107a自避让槽101的槽底壁向第一部分10a的底面的方向(图示Z轴负方向)延伸。具体的，连通槽107a位于第一转动槽103a和第二转动槽104a之间，且与第一转动槽103a和第二转动槽104a连通。
连通槽107a包括第三槽侧壁和第四槽侧壁(图未标)，沿Y轴方向上，第三槽侧壁和第四槽侧壁间隔且相对设置。第三槽侧壁设有第三安装孔(图未标)，第三安装孔沿Y轴正方向延伸。第四槽侧壁设有凸块(图未标)，凸块沿Y轴正方向延伸。凸块设有第四安装孔(图未示)，第四安装孔的开口位于凸块背离第四槽侧壁的表面。第四安装孔沿Y轴负方向延伸。其中，第三安装孔和第四安装孔均为方孔，第三安装孔和第四安装孔相对设置。
请参阅图8和图9，图9是图7所示基座10中第二部分10b的结构示意图。
基座10的第二部分10b设有第一滑动槽101b、第二滑动槽102b、第一转动槽103b、第二转动槽104b、第一配合槽105b、第二配合槽106b和连通槽107b。本实施例中，第一滑动槽101b、第二滑动槽102b、第一转动槽103b、第二转动槽104b、第一配合槽105b、第二配合槽106b和连通槽107b的结构，可分别参照上文第一部分10a中第一滑动槽101a、第二滑动槽102a、第一转动槽103a、第二转动槽104a、第一配合槽105a、第二配合槽106a和连通槽107a的相关描述，在此不再赘述。其中，沿Y轴正方向，第一配合槽105b、第一滑动槽101b和第一转动槽103b依次间隔排布，第二配合槽106b、第二滑动槽102b和第二转动槽104b依次间隔排布。
请参阅图8和图10，图10是图7所示基座10中第三部分10c的结构示意图。
基座10的第三部分10c设有第一滑动槽101c、第二滑动槽102c、第一配合槽103c和 第二配合槽104c。本实施例中，第一滑动槽101c、第二滑动槽102c、第一配合槽103c和第二配合槽104c的结构，可分别参照上文第一部分10a中第一滑动槽101a、第二滑动槽102a、第一配合槽105a和第二配合槽106a的相关描述，在此不再赘述。
其中，第一配合槽103c和第二配合槽104c均有两个。沿Y轴方向上，两个第一配合槽103c分别位于第一滑动槽101c的相对两侧，两个第二配合槽104c分别位于第二滑动槽102c的相对两侧。沿X轴方向上，一个第一配合槽103c与一个第二配合槽104c间隔且相对设置。
请参阅图8、图11和图12，图11是图6所示可折叠机构130中第一连接组件20a、第一阻尼组件30a和第一同步件60a的结构示意图，图12是图11所示第一连接组件20a、第一阻尼组件30a和第一同步件60a在另一个角度下的结构示意图。
第一固定架21a设有收容缺口211a、安装缺口212a、滑槽213a、第一安装槽214a、第二安装槽215a、避让槽216a和导向槽217a。收容缺口211a的开口位于第一固定架21a的顶面。收容缺口211a自第一固定架21a的顶面向底面的方向(即图示Z轴负方向)凹陷，且贯穿第一固定架21a的前端面、后端面和右侧面。在其他一些实施例中，收容缺口211a也可以不贯穿第一固定架21a的前端面，和/或，收容缺口211a也可以不贯穿第一固定架21a的后端面，和/或，收容缺口211a也可以不贯穿第一固定架21a的右侧面。
安装缺口212a的开口位于第一固定架21a的右侧面。安装缺口212a自第一固定架21a的右侧面向左侧面的方向(图示X轴负方向)凹陷，且贯穿第一固定架21a的底面和收容缺口211a的槽底壁。在其他一些实施例中，安装缺口212a也可以不贯穿第一固定架21a的底面。
安装缺口212a包括相对设置的两个槽侧壁和连接于两个槽侧壁之间的槽底壁(图未标)。安装缺口212a的两个槽侧壁均凹设有安装孔(图未标)，安装孔均沿Y轴方向凹陷。其中，两个安装孔为圆孔，两个安装孔同轴心。示例性的，两个安装孔的轴心均平行于Y轴方向。
安装缺口212a的槽底壁凸设有安装凸台(图未标)，安装凸台与安装缺口212a的两个槽侧壁均间隔设置。安装凸台设有通孔(图未标)，沿Y轴方向，通孔贯穿安装凸台。其中，通孔为圆孔，通孔与两个安装孔同轴心。示例性的，通孔的轴心平行于Y轴方向。在其他一些实施例中，安装缺口212a的槽底壁也可以不凸设有安装凸台。
滑槽213a位于安装缺口212a朝Y轴负方向的一侧，且与安装缺口212a间隔设置。滑槽213a的开口位于第一固定架21a的右侧面。滑槽213a自第一固定架21a的右侧面向左侧面的方向凹陷，且贯穿第一固定架21a的左侧面和第一固定架21a的底面。示例性的，滑槽213a的横截面呈方形。在其他一些实施例中，滑槽213a的横截面也可以为圆孔或异形孔等。
沿Y轴方向上，第一安装槽214a和第二安装槽215a位于滑槽213a的相对两侧，且均与滑槽213a连通。第一安装槽214a位于滑槽213a朝向Y轴正方向的一侧。第一安装槽214a的开口位于第一固定架21a的底面。第一安装槽214a自第一固定架21a的底面向顶面的方向凹陷，且贯穿滑槽213a的槽侧壁。第一安装槽214a的槽底壁凸设有第一固定块218a，第一固定块218a自第一安装槽214a的槽底壁沿Z轴负方向延伸。示例性的，第一固定块 218a呈方块状。
第二安装槽215a位于滑槽213a朝向Y轴负方向的一侧。第二安装槽215a的结构与第一安装槽214a的结构大体相同，在此不再重复描述。第二安装槽215a的槽底壁凸设有第二固定块219a。示例性的，第二固定块219a呈方块状。
避让槽216a位于安装缺口212a背离滑槽213a的一侧，且与安装缺口212a间隔设置。避让槽216a的开口位于第一固定架21a的右侧面。避让槽216a自第一固定架21a的右侧面向左侧面的方向凹陷，且贯穿第一固定架21a的底面和收容缺口211a的槽底壁。此外，避让槽216a的槽底壁设有滑孔2161a，滑孔2161a沿X轴负方向延伸，且贯穿第一固定架21a的左侧面。示例性的，滑孔2161a为方孔。
在其他一些实施例中，避让槽216a也可以不贯穿第一固定架21a的底面，和/或，避让槽216a也可以不贯穿收容缺口211a的槽底壁，和/或，避让槽216a的槽底壁也可以不设有滑孔2161a，或者，滑孔2161a也可以不贯穿第一固定架21a的左侧面。
导向槽217a的开口位于收容缺口211a的槽底壁。导向槽217a自收容缺口211a的槽底壁向第一固定架21a的底面的方向(图示Z轴负方向)凹陷，且贯穿第一固定架21a的左侧面。其中，导向槽217a为弧形槽。即，导向槽217a的槽底壁为弧形面。在其他一些实施例中，导向槽217a也可以不贯穿第一固定架21a的左侧面。
本实施例中，导向槽217a有两个，一个导向槽217a位于避让槽216a背离安装缺口212a的一侧，并与避让槽216a间隔设置，还贯穿第一固定架21a的顶面和第一固定架21a的前端面。另一个导向槽217a位于滑槽213a背离安装缺口212a的一侧，并与滑槽213a间隔设置，还贯穿第一固定架21a的顶面和第一固定架21a的后端面。在其他一些实施例中，导向槽217a也可以不贯穿第一固定架21a的顶面，和/或，导向槽217a也可以不贯穿第一固定架21a的前端面，和/或，导向槽217a也可以不贯穿第一固定架21a的后端面。
本实施例中，第一主摆臂23a包括转动部231a、连接部232a和滑动部233a，连接部232a连接于转动部231a和滑动部233a之间。转动部231a包括两个子转动部234a，两个子转动部234a沿Y轴方向间隔排布。其中，每一子转动部234a均设有通孔(图未标)，沿Y轴方向，通孔贯穿子转动部234。
转动部231a的结构与安装缺口212a的结构相适配。此外，第一连接组件20a还包括第一销轴271a，第一销轴271a可穿设于两个子转动部234a的通孔。具体的，第一销轴271a可安装于安装缺口212a。其中，第一销轴271a可穿设于安装缺口212a中安装凸台的通孔。第一销轴271a的两端分别安装于安装缺口212a的两个槽侧壁的安装孔，且分别固定连接于两个安装孔的孔壁。本实施例中，第一销轴271a为圆轴，第一销轴271a的轴心平行于Y轴方向。两个子转动部234a可相对第一销轴271a转动，以实现转动部231a与第一销轴271a之间的转动连接，进而实现第一主摆臂23a与第一固定架21a之间的转动连接。
连接部232a呈平面板状。滑动部233a的结构与第一滑动槽101a的结构相适配。其中，滑动部233a呈弧形板状，滑动部233a的轴心平行于Y轴方向。滑动部233a安装于第一滑动槽101a，且可在第一滑动槽101a内滑动且转动，以实现滑动部233a与基座10之间的滑动且转动连接，进而实现第一主摆臂23a与基座10之间的滑动且转动连接。此时，滑动部233a与第一滑动槽101a同轴心。
可以理解的是，由于基座10为一体成型的结构件，第一滑动槽101a不需要轴盖和支架来配合形成，可折叠机构130中，第一滑动槽101a和滑动部233a的厚度之和较小，可以节省可折叠机构130的空间占用，有利于实现可折叠机构130的轻薄化设计。
本实施例中，第一副摆臂25a包括转动部251a、连接部252a和滑动部253a，连接部252a连接于转动部251a和滑动部253a之间。滑动部253a呈平面板状。滑动部253a的底面凸设有第三固定块254a，第三固定块254a沿Z轴负方向延伸。其中，第三固定块254a设于滑动部253a的底面的中间区域。示例性，第三固定块254a呈方块状。
滑动部253a的结构与滑槽213a的结构相适配。滑动部253a可安装于滑槽213a，且可在滑槽213a内相对第一固定架21a滑动，以实现第一副摆臂25a与第一固定架21a之间的滑动连接。
本实施例中，转动部251a呈圆筒状。转动部251a设有通孔(图未标)和第一螺旋槽255a。沿Y轴方向，通孔贯穿转动部251a。第一螺旋槽255a位于转动部251a背离连接部252a的一侧。其中，第一螺旋槽255a绕转动部251a的轴心弯曲延伸。
转动部251a的结构与第一转动槽103a的结构相适配。此外，第一连接组件20a还包括第一转动轴281a，第一转动轴281a穿设于转动部251a的通孔。具体的，第一转动轴281a可安装于第一转动槽103a。其中，第一转动轴281a的两端分别安装于第一转动槽103a中两个第一槽侧壁的第一安装孔，且分别固定连接于两个第一安装孔的孔壁。转动部251a可相对第一转动轴281a转动，以实现转动部251a与基座10之间的转动连接，进而实现第一副摆臂25a与基座10之间的转动连接。
本实施例中，第一转动轴281a为圆轴，第一转动轴281a的轴心平行于Y轴方向，且与转动部251a同轴心。此时，第一副摆臂25a的转动部251a相对基座10的旋转中心为第一转动轴281a的轴心。即，第一副摆臂25a相对基座10的旋转中心为第一转动轴281a的轴心。
第二固定架22a设有收容缺口221a、安装缺口222a、滑槽223a、第一安装槽224a、第二安装槽225a、避让槽226a和导向槽227a。其中，收容缺口221a、安装缺口222a、滑槽223a、第一安装槽224a、第二安装槽225a、避让槽226a和导向槽227a的结构可分别参照第一固定架21a中收容缺口211a、安装缺口212a、滑槽213a、第一安装槽214a、第二安装槽215a、避让槽216a和导向槽217a的相关描述，在此不再赘述。
其中，收容缺口221a还贯穿第二固定架22a的左侧面。安装缺口222a和滑槽223a的开口均位于第二固定架22a的左侧面。第一安装槽224a的槽底壁凸设有第一固定块228a，第二安装槽225a的槽底壁凸设有第二固定块229a。避让槽226a的开口位于第二固定架22a的左侧面，避让槽226a的槽底壁设有滑孔2261a，滑孔2261a沿X轴正方向延伸，且贯穿第二固定架22a的右侧面。
第二主摆臂24a包括转动部241a、连接部242a和滑动部243a，连接部242a连接于转动部241a和滑动部243a之间。其中，第二主摆臂24a的结构可参照上文中第一主摆臂23a的相关描述，在此不再赘述。
转动部241a包括两个子转动部244a。转动部241a的结构与安装缺口222a的结构相适配。此外，第一连接组件20a还包括第二销轴272a，第二销轴272a可穿设于两个子转动部 244a的通孔(图未示)。具体的，第二销轴272a可安装于安装缺口222a。其中，第二销轴272a为圆轴，第二销轴272a的轴心平行于Y轴方向。两个子转动部244a可相对第二销轴272a转动，以实现转动部241a与第二销轴272a之间的转动连接，进而实现第二主摆臂24a与第二固定架22a之间的转动连接。
滑动部243a的结构与第二滑动槽102a的结构相适配。其中，滑动部243a呈弧形板状，滑动部243a的轴心平行于Y轴方向。滑动部243a安装于第二滑动槽102a，且可在第二滑动槽102a内滑动且转动，以实现滑动部243a与基座10之间的滑动且转动连接，进而实现第二主摆臂24a与基座10之间的滑动且转动连接。其中，滑动部243a与第二滑动槽102a同轴心。
可以理解的是，由于基座10为一体成型的结构件，第二滑动槽102a不需要轴盖和支架来配合形成，第二滑动槽102a和滑动部243a的厚度之和较小，可以节省可折叠机构130的空间占用，有利于实现可折叠机构130的轻薄化设计。
第二副摆臂26a包括转动部261a、连接部262a和滑动部263a，连接部262a连接于转动部261a和滑动部263a之间。其中，第二副摆臂26a的结构可参照上文中第一副摆臂25a的相关描述，在此不再赘述。
滑动部263a的底面凸设有第三固定块264a。滑动部263a的结构与滑槽223a的结构相适配。滑动部263a可安装于滑槽223a，且可在第一滑槽223a内相对第二固定架22a滑动，以实现滑动部263a与第二固定架22a之间的滑动连接，进而实现第二副摆臂26a与第二固定架22a之间的滑动连接。
转动部261a设有通孔(图未标)和第二螺旋槽265a。转动部261a与第二转动槽104a的结构相适配。此外，第一连接组件20a还包括第二转动轴282a，第二转动轴282a穿设于转动部261a的通孔。具体的，第二转动轴282a可安装于第二转动槽104a。转动部261a可相对第二转动轴282a转动，以实现转动部261a与基座10之间的转动连接，进而实现第二副摆臂26a与基座10之间的转动连接。
其中，第二转动轴282a为圆轴，第二转动轴282a的轴心平行于Y轴方向。此时，第二副摆臂26a的转动部261a相对基座10的旋转中心为第二转动轴282a的轴心。即，第二副摆臂26a相对基座10的旋转中心为第二转动轴282a的轴心。
第一连接组件20a在折叠状态和展开状态之间相互切换的过程中，第一固定架21a相对基座10转动时，第一固定架21a带动第一主摆臂23a相对第一固定架21a转动，并带动第一主摆臂23a相对基座10滑动且转动，还带动第一副摆臂25a相对第一固定架21a滑动，并带动第一副摆臂25a相对基座10转动。同样的，第二固定架22a相对基座10转动时，第二固定架22a带动第二主摆臂24a相对第二固定架22a转动，并带动第二主摆臂24a相对基座10滑动且转动，还带动第二副摆臂26a相对第二固定架22a滑动，并带动第二副摆臂26a相对基座10转动。
第一阻尼件31a包括第一固定部311a、第二固定部312a、第三固定部313a、第一连接部314a和第二连接部315a。第三固定部313a位于第一固定部311a和第二固定部312a之间，且与第一固定部311a和第二固定部312a间隔设置。第一连接部314a固定连接于第一固定部311a和第三固定部313a之间。第二连接部315a固定连接于第二固定部312a和第 三固定部313a之间。其中，第一阻尼件31a为一体成型的结构件。
其中，第一固定部311a设有第一固定孔316a，第一固定孔316a沿第一固定部311a的厚度方向贯穿第一固定部311a。第二固定部312a设有第二固定孔317a，第二固定孔317a沿第二固定部312a的厚度方向贯穿第二固定部312a。第三固定部313a设有第三固定孔318a，第三固定孔318a沿第三固定部313a的厚度方向贯穿第三固定部313a。
具体的，第一固定部311a安装于第一安装槽214a，第二固定部312a安装于第二安装槽215a，以实现第一阻尼件31a与第一固定架21a之间的装配。第三固定部313a固定连接于第一副摆臂25a的滑动部253a，以实现第一阻尼件31a与第一副摆臂25a之间的固定连接。其中，第一固定块218a安装于第一固定孔316a，第二固定块219a安装于第二固定孔317a，第三固定块254a安装于第三固定孔318a。
第一副摆臂25a相对第一固定架21a滑动时，滑动部253a带动第三固定部313a相对第一固定部311a和第二固定部312a移动，第一连接部314a和第二连接部315a发生形变而产生阻尼力。用户在折叠或展开可折叠终端1000的过程中，可感受到第一连接部314a和第二连接部315a发生形变产生的阻尼力，用户可以体验到较佳的手感，从而提升用户的使用体验。
第二阻尼件32a包括第一固定部321a、第二固定部322a、第三固定部323a、第一连接部324a和第二连接部325a。其中，第一固定部321a、第二固定部322a、第三固定部323a、第一连接部324a和第二连接部325a可分别参阅上文第一阻尼件31a中第一固定部311a、第二固定部312a、第三固定部313a、第一连接部314a和第二连接部315a的相关描述，在此不再赘述。
具体的，第一固定部321a安装于第一安装槽224a，第二固定部322a安装于第二安装槽225a，以实现第二阻尼件32a与第二固定架22a之间的装配。第三固定部323a固定连接于第二副摆臂26a的滑动部263a，以实现第二阻尼件32a与第二副摆臂26a之间的固定连接。其中，第一固定块228a安装于第一固定孔326a，第二固定块229a安装于第二固定孔327a，第三固定块264a安装于第三固定孔328a。
第二副摆臂26a相对第二固定架22a滑动时，滑动部253a带动第三固定部323a相对第一固定部321a和第二固定部322a移动，第一连接部324a和第二连接部325a发生形变而产生阻尼力。用户在折叠或展开可折叠终端1000的过程中，可感受到第一连接部324a和第二连接部325a发生形变产生的阻尼力，用户可以体验到较佳的手感，从而提升用户的使用体验。
第一连接组件20a在折叠状态和展开状态之间相互切换时，第一固定架21a、第二固定架22a、第一副摆臂25a和第二副摆臂26a均相对基座10转动，进而带动第一阻尼件31a和第二阻尼件32a相对基座10转动，从而使得第一阻尼组件30a在折叠状态和展开状态之间相互切换。
本实施例所示可折叠机构130中，利用安装于第一连接组件20a的第一阻尼组件30a来提供折叠过程和展开过程的阻尼力，相比于常用的利用弹簧和凸轮来提供阻尼的阻尼机构，本实施例所示第一阻尼组件30a不仅零件少，装配简单，可以减低可折叠机构130的成本，简化可折叠机构130的结构，而且第一阻尼组件30a还可以直接安装于第一连接组 件20a，不需要安装于基座10，从而第一阻尼组件30a不需要占用基座10的空间，有助于实现可折叠机构130的轻薄化设计。
在其他一些实施例中，第一阻尼组件30a也可以采用弹簧和凸轮来提供可折叠机构130在折叠过程和展开过程的阻尼力，本申请对此不作具体限制。
第一同步件60包括固定柱61a和同步滑块62a，同步滑块62a套设于固定柱61a，且可相对固定柱61a滑动。同步滑块62a设有第一凸轮63a和第二凸轮64a，第一凸轮63a和第二凸轮64a分别位于同步滑块62a的相对两侧。其中，第一凸轮63a的结构与第一螺旋槽255a的结构相适配，第二凸轮64a的结构与第二螺旋槽265a的结构相适配。
第一同步件60a安装于连通槽107a。具体的，固定柱61a和同步滑块62a均安装于连通槽107a，第一凸轮63a安装于第一螺旋槽255a，且可在第一螺旋槽255a内相对转动部251a滑动。第二凸轮64a安装于第二螺旋槽265a，且可在第二螺旋槽265a内相对转动部261a滑动。其中，固定柱61a的一端安装于第三槽侧壁的第三安装孔，另一端安装于凸块的第四安装孔，且固定连接于第四安装孔的孔壁。
第一副摆臂25a相对基座10转动时，转动部251a带动第一凸轮63a在第一螺旋槽255a内滑动，以带动同步滑块62a相对固定柱61a滑动，从而带动第二凸轮64a在第二螺旋槽265a内相对转动部261a滑动，进而带动第二副摆臂26a相对基座10转动，从而实现第一副摆臂25a和第二副摆臂26a之间的同步转动。同样的，第二副摆臂26a相对基座10转动时，第一同步件60a可带动第一副摆臂25a相对基座10转动，从而实现第一副摆臂25a和第二副摆臂26a之间的同步转动。
本实施例所示可折叠机构130中，采用螺旋槽和凸轮相配合的方式来实现同步传动，相比于常用的采用齿轮来实现同步传动，不仅减少了可折叠机构130的零件数量，避免了各零件之间的装配误差，降低了可折叠机构130的成本，而且第一同步件60a的厚度尺寸(即沿Z轴方向的尺寸)较小，有助于减小可折叠机构130的厚度尺寸，实现可折叠机构130的轻薄化设计。
在其他一些实施例中，也可以采用包括齿轮的同步组件来实现同步传动，本申请对此不作具体限制。
请参阅图9、图13和图14，图13是图6所示可折叠机构130中第二连接组件20b、第二阻尼组件30b和第二同步件60b的结构示意图，图14是图13所示第二连接组件20b、第二阻尼组件30b和第二同步件60b在另一个角度下的结构示意图。
第一固定架21b设有收容缺口211b、安装缺口212b、滑槽213b、第一安装槽214b、第二安装槽215b、避让槽216b和导向槽217b。其中，收容缺口211b、安装缺口212b、滑槽213b、第一安装槽214b、第二安装槽215b、避让槽216b和导向槽217b的结构，可分别参阅上文第一固定架21a中收容缺口211a、安装缺口212a、滑槽213a、第一安装槽214a、第二安装槽215a、避让槽216a和导向槽217a(如图11和图12所示)的相关描述，在此不再赘述。
其中，滑槽213b位于安装缺口212b朝向Y轴正方向的一侧。第一安装槽214b的槽底壁凸设有第一固定块218b，第二安装槽215b的槽底壁凸设有第二固定块219b。避让槽216b位于安装缺口212b朝向Y轴负方向的一侧。避让槽216b的槽底壁设有滑孔2161b。
第一主摆臂23b包括转动部231b、连接部232b和滑动部233b，连接部232b连接于转动部231b和滑动部233b之间。其中，第一主摆臂23b的结构可参照上文第一主摆臂23a(如图11和图12所示)的相关描述，在此不再赘述。
转动部231b包括两个子转动部234b。转动部231b的结构与安装缺口212b的结构相适配。此外，第二连接组件20b还包括第一销轴271b，第一销轴271b可穿设于两个子转动部234b的通孔(图未示)。具体的，第一销轴271b可安装于安装缺口212b。其中，第一销轴271b为圆轴，第一销轴271b的轴心平行于Y轴方向，且与第一销轴271a(如图11和图12所示)同轴心。两个子转动部234b可相对第一销轴271b转动，以实现转动部231b与第一销轴271b之间的转动连接，进而实现第一主摆臂23b与第一固定架21b之间的转动连接。
滑动部233b的结构与第一滑动槽101b的结构相适配。滑动部233b安装于第一滑动槽101b，且可在第一滑动槽101b内滑动且转动，以实现滑动部233b与基座10之间的滑动且转动连接，进而实现第一主摆臂23b与基座10之间的滑动且转动连接。此时，滑动部233b与第一滑动槽101b同轴心。
可以理解的是，由于基座10为一体成型的结构件，第一滑动槽101b不需要轴盖和支架来配合形成，第一滑动槽101b和滑动部233b的厚度之和较小，可以节省可折叠机构130的空间占用，有利于实现可折叠机构130的轻薄化设计。
第一副摆臂25b包括转动部251b、连接部252b和滑动部253b，连接部252b连接于转动部251b和滑动部253b之间。其中，第一副摆臂25b的结构可参照上文第一连接组件20a中第一副摆臂25b(如图11和图12所示)的相关描述，在此不再赘述。
滑动部253b的底面凸设有第三固定块254b。滑动部253b的结构与滑槽213b的结构相适配。滑动部253b可安装于滑槽213b，且可在第一滑槽213b内相对第一固定架21b滑动，以实现滑动部253b与第一固定架21b之间的滑动连接，进而实现第一副摆臂25b与第一固定架21b之间的滑动连接。
转动部251b设有通孔(图未标)和第一螺旋槽255b。转动部251b与第一转动槽103b的结构相适配。此外，第二连接组件20b还包括第一转动轴281b，第一转动轴281b可穿设于转动部251b的通孔。具体的，第一转动轴281b可安装于第一转动槽103b。转动部251b可相对第一转动轴281b转动，以实现转动部251b与基座10之间的转动连接，进而实现第一副摆臂25b与基座10之间的转动连接。
其中，第一转动轴281b为圆轴，第一转动轴281b的轴心平行于Y轴方向，且与第一转动轴281a(如图11和图12所示)同轴心。此时，第一副摆臂25b的转动部251b相对基座10的旋转中心为第一转动轴281b的轴心。即，第一副摆臂25b相对基座10的旋转中心为第一转动轴281b的轴心。
第二固定架22b设有收容缺口221b、安装缺口222b、滑槽223b、第一安装槽224b、第二安装槽225b、避让槽226b和导向槽227b。其中，收容缺口221b、安装缺口222b、滑槽223b、第一安装槽224b、第二安装槽225b、避让槽226b和导向槽227b的结构可分别参照第一固定架21b中收容缺口211b、安装缺口212b、滑槽213b、第一安装槽214b、第二安装槽215b、避让槽216b和导向槽217b的相关描述，在此不再赘述。
其中，收容缺口221b还贯穿第二固定架22b的左侧面。安装缺口222b和滑槽223b的开口均位于第二固定架22b的左侧面。第一安装槽224b的槽底壁凸设有第一固定块228b，第二安装槽225b的槽底壁凸设有第二固定块229b。避让槽226b的开口位于第二固定架22的左侧面，避让槽226b的槽底壁设有滑孔2261b，滑孔2261b沿X轴正方向延伸，且贯穿第二固定架22b的右侧面。
第二主摆臂24b包括转动部241b、连接部242b和滑动部243b，连接部242b连接于转动部241b和滑动部243b之间。其中，第二主摆臂24b的结构可参照上文中第一主摆臂23b的相关描述，在此不再赘述。
转动部241b包括两个子转动部244b。转动部241b的结构与安装缺口222b的结构相适配。此外，第二连接组件20b还包括第二销轴272b，第二销轴272b可穿设于两个子转动部244b的通孔(图未示)。具体的，第二销轴272b可安装于安装缺口222b。其中，第二销轴272b为圆轴，第二销轴272b的轴心平行于Y轴方向，且与第二销轴272a(如图11和图12所示)同轴心。两个子转动部244b可相对第二销轴272b转动，以实现转动部241b与第二销轴272b之间的转动连接，进而实现第二主摆臂24b与第二固定架22b之间的转动连接。
滑动部243b的结构与第二滑动槽102b的结构相适配。滑动部243b安装于第二滑动槽102b，且可在第二滑动槽102b内滑动且转动，以实现滑动部243b与基座10之间的滑动且转动连接，进而实现第二主摆臂24b与基座10之间的滑动且转动连接。其中，滑动部243b与第二滑动槽102b同轴心。
可以理解的是，由于基座10为一体成型的结构件，第二滑动槽102b不需要轴盖和支架来配合形成，第二滑动槽102b和滑动部243b的厚度之和较小，可以节省可折叠机构130的空间占用，有利于实现可折叠机构130的轻薄化设计。
第二副摆臂26b包括转动部261b、连接部262b和滑动部263b，连接部262b连接于转动部261b和滑动部263b之间。其中，第二副摆臂26b的结构可参照上文中第一副摆臂25b的相关描述，在此不再赘述。
滑动部263b的底面凸设有第三固定块264b。滑动部263b的结构与滑槽223b的结构相适配。滑动部263b可安装于滑槽223b，且可在第一滑槽223b内相对第二固定架22b滑动，以实现滑动部263b与第二固定架22b之间的滑动连接，进而实现第二副摆臂26b与第二固定架22b之间的滑动连接。
转动部261b设有通孔(图未标)和第二螺旋槽265b。转动部261b与第二转动槽104b的结构相适配。此外，第二连接组件20b还包括第二转动轴282b，第二转动轴282b穿设于转动部261b的通孔。具体的，第二转动轴282b可安装于第二转动槽104b。转动部261b可相对第二转动轴282b转动，以实现转动部261b与基座10之间的转动连接，进而实现第二副摆臂26b与基座10之间的转动连接。
其中，第二转动轴282b为圆轴，第二转动轴282b的轴心平行于Y轴方向，且与第二转动轴282a(如图11和图12所示)同轴心。此时，第二副摆臂26b的转动部261b相对基座10的旋转中心为第二转动轴282b的轴心。即，第二副摆臂26b相对基座10的旋转中心为第二转动轴282b的轴心。
第一固定架21b和第二固定架22b相对基座10转动时，第一固定架21b带动第一主摆臂23b相对第一固定架21b转动，并带动第一主摆臂23b相对基座10滑动且转动，还带动第一副摆臂25a相对第一固定架21b滑动，并第一副摆臂25a相对基座10转动，第二固定架22b带动第二主摆臂24b相对第二固定架22b转动，并带动第二主摆臂24b相对基座10滑动且转动，还带动第二副摆臂26a相对第二固定架22b滑动，并带动第二副摆臂26a相对基座10转动，以实现第二连接组件20b在折叠状态和展平状态之间的相互切换。
本实施例中，第二阻尼组件30b与第一阻尼组件30a(如图11和图12所示)的结构相同。第一阻尼件31b包括第一固定部311b、第二固定部312b、第三固定部313b、第一连接部314b和第二连接部315b。其中，第一固定部311b、第二固定部312b、第三固定部313b、第一连接部314b和第二连接部315b可分别参阅上文第一阻尼件31a中第一固定部311a、第二固定部312a、第三固定部313a、第一连接部314a和第二连接部315a(如图11和图12所示)的相关描述，在此不再赘述。
具体的，第一固定部311b安装于第一安装槽214b，第二固定部312b安装于第二安装槽215b，以实现第一阻尼件31b与第一固定架21b之间的装配。第三固定部313b固定连接于第一副摆臂25b的滑动部253b，以实现第一阻尼件31b与第一副摆臂25b之间的固定连接。其中，第一固定块218b安装于第一固定孔316b，第二固定块219b安装于第二固定孔317b，第三固定块254b安装于第三固定孔318b。
第二阻尼件32b包括第一固定部321b、第二固定部322b、第三固定部323b、第一连接部324b和第二连接部325b。其中，第一固定部321b、第二固定部322b、第三固定部323b、第一连接部324b和第二连接部325b可分别参阅上文第一阻尼件31b中第一固定部311b、第二固定部312b、第三固定部313b、第一连接部314b和第二连接部315b(如图11和图12所示)的相关描述，在此不再赘述。
第一固定部321b安装于第一安装槽224b，第二固定部322b安装于第二安装槽225b，以实现第二阻尼件32b与第二固定架22b之间的装配。第三固定部323b固定连接于第二副摆臂26b的滑动部263b，以实现第二阻尼件32b与第二副摆臂26b之间的固定连接。其中，第一固定块228b安装于第一固定孔326b，第二固定块229b安装于第二固定孔327b，第三固定块264b安装于第三固定孔328b。
本实施例中，第二同步件60b和第一同步件60a的结构相同。第二同步件60b包括固定柱61b和同步滑块62b。具体的，第二同步件60b安装于连通槽107b。固定柱61b和同步滑块62b均安装于连通槽107b，第一凸轮63b安装于第一螺旋槽255b，且可在第一螺旋槽255b内相对转动部251b滑动。第二凸轮64b安装于第二螺旋槽265b，且可在第二螺旋槽265b内相对转动部261b滑动。其中，第二同步件60b的各部件结构、以及各部件与第二连接组件20b之间的连接关系可以参照第一同步件60a的相关描述。
请参阅图10、图15和图16，图15是图6所示可折叠机构130中第三连接组件20c的结构示意图，图16是图15所示第三连接组件20c在另一个角度下的结构示意图。
第一固定架21c设有收容缺口211c、安装缺口212c和导向槽213c。本实施例中，收容缺口211c、安装缺口212c和导向槽213c的结构均可参阅上文第一固定架21a的收容缺口211a、安装缺口212a和导向槽217a(如图11和图12所示)的相关描述，在此不再赘 述。其中，安装缺口212c位于第一固定架21c的中部。
第一主摆臂23c包括转动部231c、连接部232c和滑动部233c，连接部232c连接于转动部231c和滑动部233c之间。其中，第一主摆臂23c的结构可参照上文第一主摆臂23a(如图11和图12所示)的相关描述，在此不再赘述。
转动部231c包括两个子转动部234c。转动部231c的结构与安装缺口212c的结构相适配。此外，第三连接组件20c还包括第一销轴251c，第一销轴251c可穿设于两个子转动部234c的通孔(图未示)。具体的，第一销轴251c可安装于安装缺口212c。其中，第一销轴251c为圆轴，第一销轴251c的轴心平行于Y轴方向，且与第一销轴271a(如图11和图12所示)同轴心。两个子转动部234c可相对第一销轴251c转动，以实现转动部231c与第一销轴251c之间的转动连接，进而实现第一主摆臂23c与第一固定架21c之间的转动连接。
滑动部233c的结构与第一滑动槽101c的结构相适配。滑动部233c安装于第一滑动槽101c，且可在第一滑动槽101c内滑动且转动，以实现滑动部233c与基座10之间的滑动且转动连接，进而实现第一主摆臂23c与基座10之间的滑动且转动连接。此时，滑动部233c与第一滑动槽101c同轴心。
第二固定架22c设有收容缺口221c、安装缺口222c和导向槽223c。本实施例中，收容缺口221c、安装缺口222c和导向槽223c的结构均可参照上文中第一固定架21c的收容缺口211c、安装缺口212c和导向槽213c的相关描述，在此不再赘述。其中，收容缺口221c还贯穿第二固定架22c的左侧面。安装缺口222b的开口位于第二固定架22c的左侧面。
第二主摆臂24c包括转动部241c、连接部242c和滑动部243c，连接部242c连接于转动部241c和滑动部243c之间。其中，第二主摆臂24c的结构可参照上文中第一主摆臂23c的相关描述，在此不再赘述。
转动部241c包括两个子转动部244c。转动部241c的结构与安装缺口222c的结构相适配。此外，第三连接组件20c还包括第二销轴252c，第二销轴252c可穿设于两个子转动部244c的通孔(图未示)。具体的，第二销轴252c可安装于安装缺口222c。其中，第二销轴252c为圆轴，第二销轴252c的轴心平行于Y轴方向，且与第二销轴272a(如图11和图12所示)同轴心。两个子转动部244c可相对第二销轴252c转动，以实现转动部241c与第二销轴252c之间的转动连接，进而实现第二主摆臂24c与第二固定架22c之间的转动连接。
滑动部243c的结构与第二滑动槽102c的结构相适配。滑动部243c安装于第二滑动槽102c，且可在第二滑动槽102c内滑动且转动，以实现滑动部243c与基座10之间的滑动且转动连接，进而实现第二主摆臂24c与基座10之间的滑动且转动连接。此时，滑动部243c与第二滑动槽102c同轴心。
第一固定架21c和第二固定架22c相对基座10转动时，第一固定架21c带动第一主摆臂23c相对第一固定架21c转动，并带动第一主摆臂23c相对基座10滑动且转动，第二固定架22c带动第二主摆臂24c相对第二固定架22c转动，并带动第二主摆臂24c相对基座10滑动且转动，以实现第三连接组件20c在折叠状态和展平状态之间的相互切换。
请参阅图17和图18，图17是图6所示可折叠机构130中压板组件40的结构示意图，图18是图17所示压板组件40在另一个角度下的结构示意图。
第一压板41包括支撑部411、辅助部412和导向滑块413，辅助部412和导向滑块413 均固定连接于支撑部411。其中，第一压板41为一体成型的结构件，以提高第一压板41的结构强度，保证第一压板41的结构稳定性。
一体成型的第一压板41可以减少可折叠机构130的结构件，方便可折叠机构130的装配，减少可折叠机构130的成本，有利于可折叠机构130的小型化设计，而且一体化成型的第一压板41的重量较小，有助于实现可折叠机构130的轻量化设计。
在其他一些实施例中，第一压板41也可以为通过组装方式形成的一体式结构件，比如，辅助部412和导向滑块413可通过焊接或粘接等方式固定连接于支撑部411。
支撑部411大致呈长条形板状。本实施例中，支撑部411沿Y轴方向延伸。辅助部412固定连接于支撑部411的底面。辅助部412设有滑孔414，滑孔414的开口位于辅助部412的右侧面。滑孔414自辅助部412的右侧面向左侧面的方向(图示X轴负方向)凹陷，且贯穿辅助部412的左侧面。即，滑孔414沿X轴方向贯穿辅助部412。示例性的，滑孔414为方孔。
在其他一些实施例中，滑孔414也可以不贯穿第一压板41的左侧面，或者，辅助部412也可与支撑部411围合形成滑孔414，本申请对滑孔414的具体形成方式不做限定。
本实施例中，辅助部412有四个，四个辅助部412沿Y轴方向依次间隔排布。四个辅助部412分别为前辅助部412a、后辅助部412b和中辅助部412c，中辅助部412c有两个。前辅助部412a固定连接于支撑部411的前侧，后辅助部412b固定连接于支撑部411的后侧，两个中辅助部412c固定连接于支撑部411的中部。在其他一些实施例中，辅助部412也可以有一个、两个、三个或五个以上，本申请对辅助部412的数量不做具体限制。
导向滑块413固定连接于支撑部411的底面，且与辅助部412间隔设置。导向滑块413自支撑部411的底面向远离顶面的方向(图示Z轴负方向)延伸。导向滑块413的结构与导向槽(如图11所示导向槽217a、如图13所示导向槽217b和如图15所示导向槽213c)的结构相适配。其中，导向滑块413的底面为弧形面。
本实施例中，导向滑块413有六个，六个导向滑块413沿Y轴方向依次间隔排布。六个导向滑块413分别为两个前导向滑块413a、两个后导向滑块413b和两个中导向滑块413c。两个前导向滑块413a固定连接于支撑部411的前侧，且位于前辅助部412a的相对两侧。两个后导向滑块413b固定连接于支撑部411的后侧，且位于后辅助部412b的相对两侧。两个中导向滑块413c固定连接于支撑部411的中部，并位于两个中辅助部412c之间，且与中辅助部412c间隔设置。在其他一些实施例中，导向滑块413也可以有五个以下或七个以上，本申请对导向滑块413的数量不做具体限制。
本实施例中，四个第一压板摆臂43分别为第一前压板摆臂43a、第一后压板摆臂43b和第一中压板摆臂43c，第一中压板摆臂43c有两个。在其他一些实施例中，第一压板摆臂43的数量也可以为三个以下或五个以上，本申请对第一压板摆臂43的数量不作具体限制。
第一前压板摆臂43a包括转动部431a、连接部432a和滑动部433a，连接部432a连接于转动部431a和滑动部433a之间。滑动部433a呈平面板状。滑动部433a与前辅助部412a的滑孔414的结构相适配。滑动部433a可穿设于前辅助部412a的滑孔414，且可在前辅助部412a的滑孔414内相对第一压板41滑动，以实现第一前压板摆臂43a与第一压板41之间的滑动连接。
连接部432a设有装配孔434a，装配孔434a的开口位于连接部432a的顶面。装配孔434a自连接部432a的顶面向底面的方向(图示Z轴负方向)凹陷，且贯穿连接部432a的底面。即，装配孔434a沿连接部432a的厚度方向(图示Z轴方向)贯穿连接部432a。示例性的，装配孔434a为圆孔。在其他一些实施例中，装配孔434a也可以不贯穿连接部432a的底面，和/或，装配孔434a也可以为方孔或其他异形孔。
转动部431a的结构与第一配合槽105a(如图8所示)的结构相适配。本实施例中，转动部431a呈弧形板状，转动部431a的轴心平行于Y轴方向。转动部431a安装于第一配合槽105a，且可在第一配合槽101a内滑动且转动，以实现第一前压板摆臂43a与基座10之间的滑动且转动连接。此时，转动部431a与第一配合槽105a同轴心。其中，第一前压板摆臂43a相对基座10的旋转中心平行于Y轴方向。
可以理解的是，由于基座10为一体成型的结构件，第一配合槽105a不需要轴盖和支架来配合形成，可折叠机构130中，第一配合槽105a和转动部431a的厚度之和较小，可以节省可折叠机构130的空间占用，有利于实现可折叠机构130的轻薄化设计。
第一后压板摆臂43b与第一前压板摆臂43a的结构相同。其中，第一后压板摆臂43b的连接部432b设有装配孔434b。第一后压板摆臂43b中滑动部433b的结构与后辅助部412b的滑孔414的结构相适配。滑动部433b可穿设于后辅助部412b的滑孔414，且可在后辅助部412b的滑孔414内相对第一压板41滑动，以实现第一后压板摆臂43b与第一压板41之间的滑动连接。第一后压板摆臂43b中转动部431b的结构与第一配合槽105b(如图9所示)的结构相适配。转动部431b安装于第一配合槽105b，且可在第一配合槽105b内滑动且转动，以实现第一后压板摆臂43b与基座10之间的滑动且转动连接。此时，转动部431b与第一配合槽105b同轴心。其中，第一后压板摆臂43b相对基座10的旋转中心平行于Y轴方向，且与第一前压板摆臂43a相对基座10的旋转中心同轴心。
第一中压板摆臂43c与第一前压板摆臂43a的结构相同。其中，第一中压板摆臂43c的连接部432c设有装配孔434c。第一中压板摆臂43c中滑动部433c的结构与中辅助部412c的滑孔414的结构相适配。两个第一中压板摆臂43c的滑动部433c可分别穿设于两个中辅助部412c的滑孔414，且可在滑孔414内相对第一压板41滑动，以实现两个第一中压板摆臂43c与第一压板41之间的滑动连接。第一中压板摆臂43c中转动部431c的结构与第一配合槽105c(如图10所示)的结构相适配。两个第一中压板摆臂43c的转动部431c可分别安装于两个第一配合槽105c，且可在第一配合槽105c内滑动且转动，以实现两个第一中压板摆臂43c与基座10之间的转动连接。此时，转动部431c与第一配合槽105c同轴心。其中，第一中压板摆臂43c相对基座10的旋转中心平行于Y轴方向，且与第一前压板摆臂43a相对基座10的旋转中心同轴心。
请一并参阅图11、图13和图15，支撑部411的前侧可收容于第一固定架21a的收容缺口211a，支撑部411的后侧可收容于第一固定架21b的收容缺口211b，支撑部411的中部可收容于第一固定架21c的收容缺口211c。
前辅助部412a可收容于第一固定架21a的避让槽216a。前辅助部412a的滑孔414与第一固定架21a的滑孔2161a连通，第一前压板摆臂43a的滑动部433a也可穿设于第一固定架21a的滑孔2161a，且可在滑孔2161a内相对第一固定架21a滑动。
后辅助部412b可收容于第一固定架21b的避让槽216b。后辅助部412b的滑孔414与第一固定架21b的滑孔2161b连通，第一后压板摆臂43b的滑动部433b也可穿设于第一固定架21b的滑孔2161b，且可在滑孔2161b内相对第一固定架21b滑动。
两个前导向滑块413a可分别安装于第一固定架21a的两个导向槽217a，并可在导向槽217a内滑动且转动，以实现第一压板41与第一固定架21a之间的滑动且转动连接。两个后导向滑块413b可分别安装于第一固定架21b的两个导向槽217b，并可在导向槽217b内滑动且转动，以实现第一压板41与第一固定架21b之间的滑动且转动连接。两个中导向滑块413c可分别安装于第一固定架21c的两个导向槽213c，并可在导向槽213c内滑动且转动，以实现第一压板41与第一固定架21c之间的滑动且转动。
第二压板42的结构与第一压板41的结构相同。第二压板42包括支撑部421、辅助部422和导向滑块423，辅助部422和导向滑块423均固定连接于支撑部421。其中，支撑部421、辅助部422和导向滑块423的结构，均可参照上文第一压板41中支撑部411、辅助部412和导向滑块413的相关描述，在此不再赘述。其中，辅助部422设有滑孔424。
第二压板摆臂44的结构与第一压板摆臂43的结构相同。本实施例中，第二压板摆臂44有四个，四个第二压板摆臂44分别为第二前压板摆臂44a、第二后压板摆臂44b和第二中压板摆臂44c，第二中压板摆臂44c有两个。
第二前压板摆臂44a的连接部442a设有装配孔444a。第二前压板摆臂44a中滑动部443a的结构与前辅助部422a的滑孔424的结构相适配。滑动部443a可穿设于前辅助部422a的滑孔424，且可在前辅助部422a的滑孔424内相对第二压板42滑动，以实现第二前压板摆臂44a与第二压板42之间的滑动连接。第二前压板摆臂44a中转动部441a的结构与第二配合槽106a的结构相适配。转动部441a可安装于第二配合槽106a(如图8所示)，且可在第二配合槽106a内滑动且转动，以实现第二前压板摆臂44a与基座10之间的转动连接。此时，转动部441a与第二配合槽106a同轴心。其中，第二前压板摆臂44a相对基座10的旋转中心平行于Y轴方向，且与第一前压板摆臂43a相对基座10的旋转中心间隔设置。
可以理解的是，由于基座10为一体成型的结构件，第二配合槽106a不需要轴盖和支架来配合形成，可折叠机构130中，第二配合槽106a和转动部441a的厚度之和较小，可以节省可折叠机构130的空间占用，有利于实现可折叠机构130的轻薄化设计。
第二后压板摆臂44b与第二前压板摆臂44a的结构相同。第二后压板摆臂44b的连接部442b设有装配孔444b。第二后压板摆臂44b中滑动部443b的结构与后辅助部422b的滑孔424的结构相适配。滑动部443b可穿设于后辅助部422b的滑孔424，且可在后辅助部422b的滑孔424内相对第二压板42滑动，以实现第二后压板摆臂44b与第二压板42之间的滑动连接。第二后压板摆臂44b中转动部441b的结构与第二配合槽106b(如图9所示)的结构相适配。转动部441b安装于第二配合槽106b，且可在第二配合槽106b内滑动且转动，以实现第二后压板摆臂44b与基座10之间的滑动且转动连接。此时，转动部441b与第二配合槽106b同轴心。其中，第二后压板摆臂44b相对基座10的旋转中心平行于Y轴方向，且与第二前压板摆臂44a相对基座10的旋转中心同轴心。
第二中压板摆臂44c与第二前压板摆臂44a的结构相同。第二中压板摆臂44c的连接部442c设有装配孔444c。第二中压板摆臂44c中滑动部443c的结构与中辅助部422c的滑 孔424的结构相适配。两个第二中压板摆臂44c的滑动部443c可分别穿设于两个中辅助部422c的滑孔424，且可在滑孔424内相对第二压板42滑动，以实现每一第二中压板摆臂44c与第二压板42之间的滑动连接。第二中压板摆臂44c中转动部441c的结构与第二配合槽106c(如图10所示)的结构相适配。两个第二中压板摆臂44c的转动部441c可分别安装于一个第二配合槽106c，且可在第二配合槽106c内滑动且转动，以实现两个第二中压板摆臂44c与基座10之间的转动连接。此时，转动部441c与第二配合槽106c同轴心。其中，第二中压板摆臂44c相对基座10的旋转中心平行于Y轴方向，且与第二前压板摆臂44a相对基座10的旋转中心同轴心。
请一并参阅图11、图13和图15，本实施例中，支撑部421的前侧可收容于第二固定架22a的收容缺口221a，支撑部421的后侧可收容于第二固定架22b的收容缺口221b，支撑部421的中部可收容于第二固定架22c的收容缺口221c。
前辅助部422a可收容于第二固定架22a的避让槽226a。前辅助部422a的滑孔424与第二固定架22a的滑孔2261a连通，第二前压板摆臂44a的滑动部443a也可穿设于第二固定架22a的滑孔2261a，且可在滑孔2261a内相对第二固定架22a滑动。
后辅助部422b可收容于第二固定架22b的避让槽226b。后辅助部422b的滑孔424与第二固定架22b的滑孔2261b连通，第二后压板摆臂44b的滑动部443b也可穿设于第二固定架22b的滑孔2261a，且可在滑孔2261a内相对第二固定架22b滑动。
两个前导向滑块423a可分别安装于第二固定架22a的两个导向槽227a，并可在导向槽227a内滑动且转动，以实现第二压板42与第二固定架22a之间的滑动且转动连接。两个后导向滑块423b可分别安装于第二固定架22b的两个导向槽227b，并可在导向槽227b内滑动且转动，以实现第二压板42与第二固定架22b之间的滑动且转动连接。两个中导向滑块423c可分别安装于第二固定架22c的两个导向槽223c，并可在导向槽223c内滑动且转动，以实现第二压板42与第二固定架22c之间的滑动且转动。
需要说明的是，压板组件40与第一连接组件20a、第二连接组件20b和第三连接组件20c之间的配合关系大体相同，为避免重复，接下来，以压板组件40与第一连接组件20a之间的配合关系为例进行说明。
第一固定架21a和第二固定架22a相对基座10(如图7所示)转动时，第一固定架21a带动第一压板41相对第一固定架21a滑动且转动，还带动第一压板41相对第一压板摆臂43滑动，从而带动第一压板41和第一压板摆臂43相对基座10转动，第二固定架22a带动第二压板42相对第二固定架22a滑动且转动，还带动第二压板42相对第二压板摆臂44滑动，从而带动第二压板42和第二压板摆臂44相对基座10转动，进而实现压板组件40在折叠状态和展平状态之间的相互切换。
请参阅图19和图20，图19是图6所示可折叠机构130中柔性支撑板50的结构示意图，图20是图19所示柔性支撑板50在另一个角度下的结构示意图。
柔性支撑板50包括柔性支撑部51、第一固定部52和第二固定部53，第一固定部52和第二固定部53均固定连接于柔性支撑部51。其中，柔性支撑板50可为一体成型的结构件，以减少柔性支撑板50的零件数，不仅便于柔性支撑板50进行装配，还可以减少柔性支撑板50的制造成本。可以理解的是，柔性支撑板50的局部厚度可以做薄，可减小柔性 支撑板50的厚度，有助于减小可折叠机构130的厚度，实现可折叠机构130的轻薄化设计。
柔性支撑部51呈条形板状。柔性支撑部51沿Y轴方向延伸，且可绕Y轴方向发生弯折。柔性支撑部51设有多个条形槽511，每一条形槽511的开口均位于柔性支撑部51的底面，以保证柔性支撑部51的顶面的完整性。具体的，每一条形槽511的开口位于柔性支撑部51的底面的中间区域。条形槽511自柔性支撑部51的底面向顶面的方向(图示Z轴负方向)凹陷，且贯穿柔性支撑部51的前侧面和后侧面。沿X轴方向上，多个条形槽511平行且间隔排布。其中，条形槽511的延伸方向平行于Y轴方向，以增加柔性支撑部51的柔性，便于柔性支撑部51沿Y轴方向发生弯折。在其他一些实施例中，多个条形槽511的开口也可以位于柔性支撑部51的顶面。
此外，柔性支撑部51还设有第一避让槽512、第二避让槽513、第三避让槽514和第四避让槽515。第一避让槽512、第二避让槽513、第三避让槽514和第四避让槽515的开口均位于柔性支撑部51的底面，且均与一个或多个条形槽511连通。
本实施例中，第一避让槽512有三个，三个第一避让槽512均位于柔性支撑部51的左侧。沿Y轴方向上，三个第一避让槽512间隔排布。三个第一避让槽512分别为第一前避让槽512a、第一后避让槽512b和第一中避让槽512c。第一前避让槽512a位于柔性支撑部51的前侧，第一后避让槽512b位于柔性支撑部51的后侧，第一中避让槽512c位于柔性支撑部51的中部。
第二避让槽513有三个，三个第二避让槽513均位于柔性支撑部51的右侧。沿Y轴方向上，三个第二避让槽513间隔排布。三个第二避让槽513分别为第二前避让槽513a、第二后避让槽513b和第二中避让槽513c。第二前避让槽513a位于柔性支撑部51的前侧，并位于第一前避让槽512a朝向Y轴负方向的一侧，且与第一前避让槽512a间隔设置。第二后避让槽513b位于柔性支撑部51的后侧，并位于第一后避让槽512b朝向Y轴负方向的一侧，且与第一后避让槽512b间隔设置。第二中避让槽513c位于柔性支撑部51的中部，并位于第一中避让槽512c朝向Y轴负方向的一侧，且与第一中避让槽512c间隔设置。
第三避让槽514和第四避让槽515均有两个。两个第三避让槽514分别为第三前避让槽514a和第三后避让槽514b，两个第四避让槽515分别为第四前避让槽515a和第四后避让槽515b。第三前避让槽514a和第四前避让槽515a均位于柔性支撑部51的前侧，并均位于第二前避让槽513a背离第一前避让槽512a的一侧，且均与第二前避让槽513a间隔设置。第三后避让槽514b和第四后避让槽515b均位于柔性支撑部51的后侧，并均位于第二后避让槽513b背离第一后避让槽512b的一侧，且均与第二后避让槽513b间隔设置。其中，沿X轴方向上，第三前避让槽514a和第四前避让槽515a间隔且相对设置，第三后避让槽514b和第四后避让槽515b间隔且相对设置。
第一固定部52固定连接于柔性支撑部51的底面，且与条形槽511间隔设置。具体的，第一固定部52固定连接于柔性支撑部51的底部的边缘区域。第一固定部52自柔性支撑部51的底面向背离顶面的方向(图示Z轴正方向)延伸。示例性的，第一固定部52呈圆柱形。
本实施例中，第一固定部52有四个，四个第一固定部52均固定连接于柔性支撑部51的左侧，沿Y轴方向，四个第一固定部52间隔排布。四个第一固定部52分别为第一前固 定部52a、第一后固定部52b和第一中固定部52c，第一中固定部52c有两个。第一前固定部52a固定连接于柔性支撑部51的前侧，并位于第一前避让槽512a背离第三前避让槽514a的一侧，且与第一前避让槽512a间隔设置。第一后固定部52b固定连接于柔性支撑部51的后侧，并位于第一后避让槽512b背离第三后避让槽514b的一侧，且与第二后避让槽513b间隔设置。两个第一中固定部52c均固定连接于柔性支撑部51的中部，并分别位于第一中避让槽512c的相对两侧，且均与第一中避让槽512c间隔设置。
第二固定部53固定连接于柔性支撑部51的底面，且与条形槽511和第一固定部52均间隔设置。本实施例中，第二固定部53的结构、以及第二固定部53与柔性支撑部51之间的关系，均可参照第一固定部52的相关描述，在此不再赘述。其中，第二固定部53有四个，四个第二固定部53均固定连接于柔性支撑部51的右侧。沿Y轴方向，四个第二固定部53间隔排布。四个第二固定部53分别为第二前固定部53a、第二后固定部53b和第二中固定部53c，第二中固定部53c有两个。
请一并参阅图17和图18，第一前固定部52a安装于第一前压板摆臂43a的装配孔434a，第一后固定部52b安装于第一后压板摆臂43b的装配孔434b，两个第一中固定部52c分别安装于两个第一中压板摆臂43c的装配孔434c，第二前固定部53a安装于第二前压板摆臂44a的装配孔444a，第二后固定部53b安装于第二后压板摆臂44b的装配孔444b，两个第二中固定部53c分别安装于两个第二中压板摆臂44c的装配孔444c，以实现柔性支撑板50与压板组件40之间的装配。
压板组件40在折叠状态和展开状态之间相互切换时，第一压板摆臂43和第二压板摆臂44均相对基座10(如图7所示)转动，从而带动第一固定部52和第二固定部53相对基座10转动，进而带动柔性支撑部51发生相对折叠或相对展开。换言之，柔性支撑板50可在压板组件40的带动下发生相对折叠或相对展开。即，柔性支撑板50可在压板组件40的带动下在折叠状态和展开状态之间相互切换。
可以理解的是，第一压板摆臂43和第二压板摆臂44相对基座10转动时，均会与基座10产生相对位移。此时，第一压板摆臂43和第二压板摆臂44产生的位移，可与柔性支撑板50因发生弯折而产生的尺寸变化相匹配，保证柔性支撑板50保持平整状态，避免柔性支撑板50产生褶皱，提高可折叠机构130的使用可靠性。
请一并参阅图21和图22，图21是图5所示可折叠机构130沿I-I处剖开的剖面结构示意图，图22是图21所示可折叠机构130处于折叠状态下的结构示意图。其中，沿I-I处剖开是指沿I-I线所在平面剖开，本申请中类似的描述可做相同理解。
可折叠机构130处于展平状态时，压板组件40处于展平状态，第一压板41和第二压板42分别位于基座10的两侧，柔性支撑板50相对展平，第一压板41的顶面(即支撑部411的顶面)、第二压板42的顶面(即支撑部421的顶面)和柔性支撑板50的顶面(即柔性支撑部51的顶面)齐平，第一压板41的顶面、第二压板42的顶面和柔性支撑板50的顶面形成支撑面1302。
其中，第一前避让槽512a避让第一主摆臂23a的滑动部232a(如图11所示)，第一后避让槽512b避让第一主摆臂23b的滑动部232b(如图13所示)，第一中避让槽512c避让第一主摆臂23c的滑动部232c(如图15所示)。第二前避让槽513a避让第二主摆臂24a的 滑动部242a(如图11所示)，第二后避让槽513b避让第二主摆臂24b的滑动部242b(如图13所示)，第二中避让槽513c避让第二主摆臂24c的滑动部242c(如图15所示)。
第三前避让槽514a避让第一副摆臂25a的转动部251a(如图11所示)，第三后避让槽514b避让第一副摆臂25b的转动部251b(如图13所示)。第四前避让槽515a避让第二副摆臂26a的转动部261a(如图11所示)，第四后避让槽515b避让第二副摆臂26b的转动部261b(如图13所示)。
可以理解的是，在柔性支撑板50处于展平状态时，柔性支撑板50中各个避让槽的设置可避免柔性支撑板50与各个连接组件20中的摆臂发生干涉，使得柔性支撑部51不会被各个摆臂抵持而相对第一压板41的顶面和第二压板42的顶面凸出，保证柔性支撑板50的顶面与第一压板41的顶面和第二压板42的顶面齐平。
可折叠机构130处于折叠状态时，压板组件40处于折叠状态，第一压板41和第二压板42相对设置，柔性支撑板50发生弯折而相对折叠，第一固定架(如图11所示第一固定架21a、图13所示第一固定架21b和图15所示第一固定架21c)、第二固定架(如图11所示第二固定架22a、图13所示第二固定架22b和图15所示第二固定架22c)、第一压板41、第二压板42和柔性支撑板50围合形成避让空间1303。其中，避让空间1303的横截面呈“水滴状”。需要说明的是，避让空间1303的横截面是指沿X-Z面剖开后的截面。
其中，柔性支撑板50的底部收容于基座10的避让槽101(如图7所示)。可以理解的是，基座10中避让槽101的设计可避让柔性支撑板50的底部，避免基座10与柔性支撑板50之间发生干涉，以便于形成呈“水滴状”的避让空间1303。
请参阅图3、图23和图24，图23是图2所示可折叠终端1000的局部剖面结构示意图，图24是图3所示可折叠终端1000处于折叠状态下的结构示意图。其中，图23和图24所示可折叠终端1000仅示出了可折叠机构130和显示屏200的可折叠部分230。
具体的，第一固定架21a(如图11所示)、第一固定架21b(如图13所示)和第一固定架21c(如图15所示)固定连接于第一壳体110，第二固定架22a(如图11所示)、第二固定架22b(如图13所示)和第二固定架22c(如图15所示)固定连接于第二壳体120。示例性的，第一固定架21a、第一固定架21b和第一固定架21c可通过螺钉或者螺栓等紧固件与第一壳体110固定连接，第二固定架22a、第二固定架22b和第二固定架22c可通过螺钉或者螺栓等紧固件与第二壳体120固定连接。
此时，第一压板41、第二压板42和柔性支撑板50形成的支撑面1302可支撑显示屏200的可折叠部分230，不仅以保证显示屏200的良好显示，而且在可折叠部分230被触摸时，可折叠部分230不容易因外力触摸而发生损坏或者出现凹坑，提高显示屏200的使用可靠性。其中，支撑面1302可与第一壳体110的顶面以及第二壳体120的顶面齐平，以使第一压板41、第二压板42和柔性支撑板50可与第一壳体110和第二壳体120共同支撑显示屏200，实现展平态的可折叠装置100对显示屏200的有效支撑。
可以理解的是，由于柔性支撑板50没有开孔设计，柔性支撑板50的顶面为完整的平面，使得支撑面1302的面积较大，可较好的支撑可折叠部分230，提高了柔性支撑板50对可折叠部分230的支撑效果。
可折叠终端1000处于折叠状态时，显示屏200的可折叠部分230位于可折叠机构130 的内侧。具体的，可折叠部分230位于避让空间1303内。此时，可折叠机构130可避让可折叠部分230弯折时形成的R角，使得可折叠部分230不会出现较大角度弯折，避免显示屏200产生折痕等不良现场，有助于延长显示屏200的使用寿命。
本实施例所示可折叠终端1000所采用的可折叠机构130中，采用柔性支撑板50来支撑显示屏200，柔性支撑板50直接安装于第一压板摆臂43和第二压板摆臂44，不需要利用弹簧即可实现柔性支撑板50的装配，减少了可折叠机构130的部件数量，不仅简化了可折叠机构130的组装工艺，解决了组装精度较差的问题，还精简了可折叠机构130的结构，使得可折叠机构130的结构简单，有利于可折叠终端1000的轻量化设计。
以上描述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内；在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (18)

  1. 一种可折叠机构，其特征在于，包括基座、第一压板摆臂和柔性支撑板，所述第一压板摆臂的转动部转动连接所述基座，所述柔性支撑板安装于所述第一压板摆臂，且可在所述第一压板摆臂的带动下发生弯折，所述柔性支撑板的弯折方向平行于所述第一压板摆臂相对所述基座的旋转轴心。
  2. 根据权利要求1所述的可折叠机构，其特征在于，所述第一压板摆臂滑动且转动连接所述基座。
  3. 根据权利要求1或2所述的可折叠机构，其特征在于，所述可折叠机构还包括第二压板摆臂，所述第二压板摆臂的转动部转动连接所述基座，所述柔性支撑板还安装于所述第二压板摆臂，且可在所述第二压板摆臂的带动下发生弯折，所以柔性支撑板的弯折方向还平行于所述第二压板摆臂相对所述基座的旋转轴心。
  4. 根据权利要求3所述的可折叠机构，其特征在于，所述第二压板摆臂的转动部滑动且转动连接所述基座。
  5. 根据权利要求3或4所述的可折叠机构，其特征在于，所述第一压板摆臂的连接部设有装配孔，所述第二压板摆臂的连接部设有装配孔，所述柔性支撑板包括柔性支撑部、第一固定部和第二固定部，所述柔性支撑部设有多个条形槽，多个所述条形槽平行且间隔排布，每一所述条形槽的延伸方向均平行于所述柔性支撑板的弯折方向，所述第一固定部和所述第二固定部均固定连接于所述柔性支撑部的底面，所述第一固定部安装于所述第一压板摆臂的装配孔，所述第二固定部安装于所述第二压板摆臂的装配孔。
  6. 根据权利要求5所述的可折叠机构，其特征在于，多个所述条形槽的开口位于所述柔性支撑部的底面。
  7. 根据权利要求3至6中任一项所述的可折叠机构，其特征在于，所述可折叠机构还包括第一压板和第二压板，所述第一压板滑动连接所述第一压板摆臂的滑动部，所述第二压板滑动连接所述第二压板摆臂的滑动部；
    所述可折叠机构处于展平状态时，所述第一压板和所述第二压板分别位于所述基座的相对两侧，所述第一压板的顶面、所述第二压板的顶面和所述柔性支撑板的顶面齐平。
  8. 根据权利要求7所述的可折叠机构，其特征在于，所述可折叠机构还包括第一固定架和第二固定架，所述第一固定架滑动且转动连接所述第一压板，所述第二固定架滑动且转动连接所述第二压板；
    所述可折叠机构处于折叠状态时，所述第一压板和所述第二压板相对设置，所述第一 固定架、所述第二固定架、所述第一压板、所述第二压板和所述柔性支撑板围合形成避让空间，所述避让空间呈水滴状。
  9. 根据权利要求8所述的可折叠机构，其特征在于，所述基座设有避让槽，所述可折叠机构处于折叠状态时，所述避让槽用于避让所述柔性支撑板的底部。
  10. 根据权利要求8或9所述的可折叠机构，其特征在于，所述可折叠机构还包括第一主摆臂和第二主摆臂，所述第一主摆臂的转动部转动连接所述第一固定架，所述第一主摆臂的滑动部滑动且转动连接所述基座，所述第二主摆臂的转动部转动连接所述第二固定架，所述第二主摆臂的滑动部滑动且转动连接所述基座。
  11. 根据权利要求10所述的可折叠机构，其特征在于，所述柔性支撑部还设有第一避让槽和第二避让槽，所述第一避让槽和所述第二避让槽的开口均位于所述柔性支撑部的底面，所述可折叠机构处于展平状态时，所述第一避让槽用于避让所述第一主摆臂的滑动部，所述第二避让槽用于避让所述第二主摆臂的滑动部。
  12. 根据权利要求8至11中任一项所述的可折叠机构，其特征在于，所述可折叠机构还包括第一副摆臂和第二副摆臂，所述第一副摆臂的滑动部滑动连接所述第一固定架，所述第一副摆臂的转动部转动连接所述基座，所述第二副摆臂的滑动部滑动连接所述第二固定架，所述第二副摆臂的转动部转动连接所述基座。
  13. 根据权利要求12所述的可折叠机构，其特征在于，所述柔性支撑部还设有第三避让槽和第四避让槽，所述第三避让槽和所述第四避让槽的开口均位于所述柔性支撑部的底面，所述可折叠机构处于展平状态时，所述第三避让槽用于避让所述第一副摆臂的转动部，所述第四避让槽用于避让所述第二副摆臂的转动部。
  14. 根据权利要求1至13中任一项所述的可折叠机构，其特征在于，所述基座为一体成型的结构件。
  15. 根据权利要求14所述的可折叠机构，其特征在于，所述基座设有第一配合槽，所述第一配合槽为弧形槽，所述第一压板摆臂的转动部呈弧形板状，所述第一压板摆臂的转动部安装于所述第一配合槽，且可在所述第一配合槽内相对所述基座滑动且转动。
  16. 一种可折叠终端，其特征在于，包括第一壳体、第二壳体和如权利要求1至15中任一项所述的可折叠机构，所述可折叠机构连接于所述第一壳体和所述第二壳体之间。
  17. 根据权利要求16所述的可折叠终端，其特征在于，所述可折叠终端还包括显示屏，所述显示屏包括第一显示部分、第二显示部分和可折叠部分，所述可折叠部分连接于所述 第一显示部分和所述第二显示部分之间，所述第一显示部分安装于所述第一壳体，所述第二显示部分安装于所述第二壳体，所述可折叠部分与所述可折叠机构相对设置；
    所述可折叠终端处于展开状态时，所述柔性支撑板的顶面支撑所述可折叠部分。
  18. 根据权利要求17所述的可折叠终端，其特征在于，所述可折叠终端处于折叠状态时，所述可折叠部分收容于所述可折叠机构的避让空间。
PCT/CN2022/143394 2022-03-31 2022-12-29 可折叠机构和可折叠终端 WO2023185167A1 (zh)

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