WO2024255310A1 - 一种转轴机构及电子设备 - Google Patents

一种转轴机构及电子设备 Download PDF

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Publication number
WO2024255310A1
WO2024255310A1 PCT/CN2024/078535 CN2024078535W WO2024255310A1 WO 2024255310 A1 WO2024255310 A1 WO 2024255310A1 CN 2024078535 W CN2024078535 W CN 2024078535W WO 2024255310 A1 WO2024255310 A1 WO 2024255310A1
Authority
WO
WIPO (PCT)
Prior art keywords
fixing frame
arm
groove
swing arm
base
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2024/078535
Other languages
English (en)
French (fr)
Inventor
长井贤次
林辉
钟鼎
范文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP24762567.6A priority Critical patent/EP4497957A4/en
Publication of WO2024255310A1 publication Critical patent/WO2024255310A1/zh
Priority to US19/420,541 priority patent/US20260107397A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H05K5/0226—Hinges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • H04M1/026—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 technical field of foldable electronic devices, and in particular to a hinge mechanism and electronic devices.
  • Flexible display screens are key components in foldable electronic devices, and they have the characteristic of continuous foldability.
  • the hinge mechanism is an important component for foldable electronic devices to realize the folding function. During the unfolding and closing of the foldable electronic device, the hinge mechanism can drive the flexible display screen to flatten or bend.
  • some components of the rotating components in the hinge mechanism need to be thinned, which results in poor structural strength of these components, thereby making the structural reliability of the entire hinge mechanism poor. Based on this, how to make the structure of the hinge mechanism more reliable while avoiding pulling or squeezing the flexible display screen has become a major problem that needs to be solved urgently by those skilled in the art.
  • the present application provides a hinge mechanism and an electronic device to achieve a miniaturized design of the hinge mechanism and improve the structural reliability of a flexible display screen during the rotation of the hinge mechanism, thereby improving the structural reliability of the electronic device.
  • the present application provides a hinge mechanism, which can be used for a foldable electronic device, and the hinge mechanism is arranged relative to the foldable part of the flexible display screen of the electronic device, and the electronic device is unfolded or closed by the hinge mechanism.
  • the hinge mechanism may include a base and a rotating module.
  • the rotating module includes a first rotating component and a second rotating component, and the first rotating component and the second rotating component are respectively arranged on opposite sides of the base.
  • the first rotating component may include a first swing arm, a first shell fixing frame, a first radial swing arm and a first support arm.
  • the first swing arm is rotatably connected to the base.
  • the first support arm is rotatably connected to the base, and the first support arm is slidably connected to the first shell fixing frame along a first direction.
  • the axis of rotation of the first support arm around the base and the axis of rotation of the first swing arm around the base are both parallel to the length direction of the base and do not overlap with each other, and the first direction is perpendicular to the length direction of the base.
  • the first radial swing arm is located between the first swing arm and the first shell fixing frame
  • the first radial swing arm includes a first connecting portion, a second connecting portion and a first avoidance opening
  • the first avoidance opening is located between the first connecting portion and the second connecting portion
  • the side of the first radial swing arm facing away from the first avoidance opening is the first connecting surface
  • the first connecting portion is rotationally connected to the first swing arm
  • the second connecting portion is rotationally connected to the first shell fixing frame
  • the rotation axis of the first radial swing arm extends along the first direction.
  • the second rotating assembly may include a second swing arm, a second housing fixing frame, a second radial swing arm and a second support arm.
  • the second swing arm is rotationally connected to the base
  • the second support arm is rotationally connected to the base
  • the second support arm is slidingly connected to the second housing fixing frame along the second direction
  • the axis of rotation of the second support arm around the base and the axis of rotation of the second swing arm around the base are both parallel to the length direction of the base and do not overlap each other
  • the second direction is perpendicular to the length direction of the base.
  • the second radial swing arm is located between the second swing arm and the second housing fixing frame, the second radial swing arm includes a third connecting portion, a fourth connecting portion and a second avoidance opening, the second avoidance opening is located between the third connecting portion and the fourth connecting portion, the side of the second radial swing arm that faces away from the second avoidance opening is the second connecting surface, the third connecting portion is rotationally connected to the second swing arm, the fourth connecting portion is rotationally connected to the second housing fixing frame, and the rotation axis of the second radial swing arm extends along the second direction.
  • the base includes an appearance shell facing away from the flexible display screen, and the appearance shell includes a first end and a second end opposite to each other, the first end is arranged toward the first shell fixing frame, and the second end is arranged toward the second shell fixing frame. Then, when the electronic device is in the unfolded state, the first end of the appearance shell is inserted into the first avoidance opening, and the second end of the appearance shell is inserted into the second avoidance opening.
  • the first shell fixing frame slides relative to the first support arm in a direction away from the base, and the second shell fixing frame slides relative to the second support arm in a direction away from the base, the first support arm rotates around the base to drive the first radial rotary arm to rotate around the first direction, and the second support arm rotates around the base to drive the second radial rotary arm to rotate around the second direction, so that when the electronic device is in the closed state, the first radial rotary arm
  • the first connecting surface of the second radial spiral arm does not face the flexible display screen, and the second connecting surface of the second radial spiral arm does not face the flexible display screen.
  • the first swing arm (second swing arm) is directly connected to the first shell fixing frame (second shell fixing frame) while being rotationally connected to the base, in order to enable the electronic device using the hinge mechanism to unfold to a flat state, it is necessary to open a avoidance opening on the first swing arm (second swing arm) to achieve the avoidance of the first swing arm (second swing arm) to the appearance shell.
  • the first swing arm (second swing arm) also needs to avoid interference with the flexible display screen when in the closed state
  • the thickness of the avoidance portion of the first swing arm (second swing arm) of the existing hinge mechanism which is arranged opposite to the avoidance opening, can only be designed to be thinner to avoid the flexible display screen, which limits the overall thickness of the hinge mechanism.
  • the first avoidance opening (second avoidance opening) of the first radial arm (second radial arm) can avoid the appearance shell
  • the first shell fixing frame (second shell fixing frame) rotates around the base to drive the first radial arm (second radial arm), the first swing arm (second swing arm) and the first support arm (second support arm) to rotate around the base together
  • the first support arm (second support arm) rotates around the base to drive the first radial arm (second radial arm) to rotate relative to the first swing arm (second swing arm) and the first shell fixing frame (second shell fixing frame), so that the first connection surface (second connection surface) of the first radial arm (second radial arm) rotates to the side away from the flexible display screen.
  • the hinge mechanism provided in the present application can ensure the structural strength of the entire first radial hinge arm (second radial hinge arm) while achieving the first radial hinge arm (second radial hinge arm) avoiding the appearance shell and the flexible display screen, thereby being beneficial to improving the structural reliability of the hinge mechanism.
  • the first shell fixing frame and the second shell fixing frame move toward each other, and the first shell fixing frame rotates counterclockwise around the base to drive the first swing arm, the first radial swing arm and the first support arm to rotate counterclockwise around the base; the second shell fixing frame rotates clockwise around the base to drive the second swing arm, the second radial swing arm and the second support arm to rotate synchronously in the clockwise direction.
  • the first shell fixing frame and the second shell fixing frame move in opposite directions, and the first shell fixing frame rotates clockwise around the base to drive the first swing arm, the first radial swing arm and the first support arm to rotate clockwise around the base; the second shell fixing frame rotates counterclockwise around the base to drive the second swing arm, the second radial swing arm and the second support arm to rotate synchronously in the counterclockwise direction.
  • the folding and unfolding functions of the hinge mechanism can be realized.
  • the first support arm (second support arm) and the first shell fixing frame (second shell fixing frame) can slide relative to each other, which can make the first shell fixing frame and the second shell fixing frame move in a direction toward or away from the base, so that during the process of the first rotating assembly and the second rotating assembly rotating toward each other, the first shell fixing frame slides relative to the first support arm in a direction away from the rotation axis (base) of the first support arm, and the second shell fixing frame slides relative to the second support arm in a direction away from the rotation axis (base) of the second support arm, thereby increasing the extension length of the first rotating assembly and the second rotating assembly relative to the base.
  • the first housing fixing frame will slide relative to the first support arm in the direction close to the rotation axis of the first support arm, and the second housing fixing frame will slide relative to the second support arm in the direction close to the rotation axis of the second support arm, thereby reducing the extension length of the first rotating assembly and the second rotating assembly relative to the base, thereby reducing the length of the hinge mechanism.
  • the hinge mechanism when the hinge mechanism is in the closed state, the unfolded state, and the folded state, the extension length of the first rotating assembly and the second rotating assembly relative to the base can adapt to the state of the flexible display screen, avoiding pulling or squeezing of the flexible screen.
  • the first swing arm (second swing arm), the first radial swing arm (second radial swing arm) and the first shell fixing frame (second shell fixing frame) are fixed in relative positions along the first direction (second direction). Then, in the process of the first support arm (second support arm) sliding relative to the first shell fixing frame (second shell fixing frame), there is also a relative displacement between the first support arm (second support arm) and the first radial swing arm (second radial swing arm), so that the first support arm (second support arm) can drive the first radial swing arm (second radial swing arm) around its rotation axis. Rotate.
  • the first radial swing arm further includes a first avoidance portion, the first avoidance portion is located between the first connecting portion and the second connecting portion, and the first connecting portion and the second connecting portion are connected through the first avoidance portion; the first avoidance portion is disposed opposite to the first avoidance opening, and the first connecting surface is the surface of the first avoidance portion that is away from the first avoidance opening. Since the first radial swing arm can rotate around its axis during the process of the electronic device changing from an unfolded state to a closed state, the first connecting surface can be prevented from facing the flexible display screen when the electronic device is in a closed state. Such a design allows the thickness of the first avoidance portion to be flexibly set or even thickened according to strength requirements, which is conducive to improving the structural reliability of the first radial swing arm, thereby improving the structural reliability of the hinge mechanism.
  • the second radial swing arm also includes a second avoidance portion, the second avoidance portion is located between the third connection portion and the fourth connection portion, and the third connection portion and the fourth connection portion are connected through the second avoidance portion; the second avoidance portion is arranged opposite to the second avoidance opening, and the second connection surface is the surface of the second avoidance portion away from the second avoidance opening. Since the second radial swing arm can rotate around its axis during the process of the electronic device changing from the unfolded state to the closed state, the second connection surface can be prevented from facing the flexible display screen when the electronic device is in the closed state. Such a design allows the thickness of the second avoidance portion to be flexibly set or even thickened according to the strength requirements, which is conducive to improving the structural reliability of the second radial swing arm, thereby improving the structural reliability of the hinge mechanism.
  • the first connecting portion when the first radial swing arm is rotatably connected to the first swing arm and the first housing fixing frame, the first connecting portion can be rotatably connected to the first swing arm through the first rotating shaft, the second connecting portion can be rotatably connected to the first housing fixing frame through the second rotating shaft, the axis of the first rotating shaft extends along the first direction, and the axis of the second rotating shaft extends along the first direction.
  • the first radial swing arm is rotatably connected to the first swing arm and the first housing fixing frame, and the rotation axis of the first radial swing arm extends along the first direction.
  • the second connection portion may be provided with a first card slot
  • the first housing fixing frame may be provided with a first card connection portion
  • the first card connection portion is inserted into the first card slot
  • the second rotating shaft is passed through the slot wall of the first card slot and the first card connection portion.
  • the third connection portion of the second radial swing arm is rotationally connected to the second swing arm via the third rotation shaft
  • the fourth connection portion is rotationally connected to the second housing fixing frame via the fourth rotation shaft
  • the axis of the third rotation shaft extends along the second direction
  • the axis of the fourth rotation shaft extends along the second direction, thereby realizing the rotation connection between the second radial swing arm and the second housing fixing frame, and making the rotation axis of the second radial swing arm extend along the first direction.
  • the fourth connection portion is provided with a second card slot
  • the second housing fixing frame is provided with a second card connection portion
  • the second card connection portion is inserted into the second card slot
  • the fourth rotating shaft is passed through the slot wall of the second card slot and the second card connection portion.
  • the first radial swing arm further includes a first track groove
  • the first support arm includes a first guide portion
  • the first guide portion slides along the first track groove to drive the first radial swing arm to rotate relative to the first swing arm, so that when the electronic device is in the unfolded state, the first end is inserted into the first avoidance opening.
  • the first radial swing arm is driven to rotate relative to the first swing arm by the first guide portion of the first support arm sliding along the first track groove of the first radial swing arm, so that the structure of the first rotating assembly can be relatively simple while realizing the rotation of the first radial swing arm.
  • the second radial swing arm further includes a second track groove
  • the second support arm includes a second guide portion
  • the second guide portion slides along the second track groove to drive the second radial swing arm to rotate relative to the second swing arm, so that when the electronic device is in the unfolded state, the second end is inserted into the second avoidance opening.
  • the second radial swing arm is driven to rotate relative to the second swing arm by the second guide portion of the second support arm sliding along the second track groove of the second radial swing arm, so that the structure of the second rotating assembly can be relatively simple while realizing the rotation of the second radial swing arm.
  • the specific setting form of the first track groove is not limited. It can be exemplarily a spiral groove, so that when the first support arm slides in the first direction relative to the first shell fixing frame, it can drive the first radial swing arm to rotate relative to the first shell fixing frame and the first swing arm around the axis extending in the first direction.
  • the second track groove can also be set as a spiral groove, so that when the second support arm slides relative to the second shell fixing frame along the second direction, it can drive the second radial spiral arm to rotate relative to the second shell fixing frame and the second swing arm around the axis extending along the second direction.
  • the portion connected to the first connecting portion (third connecting portion) of the first radial spiral arm (second radial spiral arm) is also provided with a first avoidance surface (second avoidance surface).
  • first avoidance surface second avoidance surface
  • the first avoidance surface can avoid the foldable portion of the flexible display screen, so that the screen-holding space formed by the hinge mechanism in the closed state can be adapted to the shape of the foldable portion of the flexible display screen, which can avoid squeezing the flexible display screen, thereby helping to improve the structural reliability of the flexible display screen, and further improve the structural reliability of the electronic device.
  • the first radial arm (the second radial arm) can be rotated during the folding process, so that the avoidance surface and the connection surface are arranged on different surfaces of the first radial arm (the second radial arm), thereby avoiding excessive reduction.
  • the thin avoidance portion may result in insufficient strength, or the avoidance portion may interfere with the flexible display screen.
  • the first guide portion slides along the first track groove to drive the first radial swing arm to rotate relative to the first swing arm, so that when the electronic device is in a closed state, the first avoidance surface avoids the foldable part of the flexible display screen, thereby avoiding the first radial swing arm from squeezing the foldable part of the flexible display screen, which is beneficial to improving the structural reliability of the flexible display screen.
  • the second guide portion slides along the second track groove to drive the second radial swing arm to rotate relative to the second swing arm, so that when the electronic device is in a closed state, the second avoidance surface avoids the foldable part of the flexible display screen, thereby avoiding the second radial swing arm from squeezing the foldable part of the flexible display screen, which is beneficial to improving the structural reliability of the flexible display screen.
  • the first avoidance surface is an arc-shaped concave surface
  • the second avoidance surface is an arc-shaped concave surface.
  • the shapes of the first avoidance surface and the second avoidance surface can be fitted according to the external shape of the foldable part of the flexible display screen when it is folded, so that when the electronic device is in a closed state, the shape of the screen-containing space formed by the hinge mechanism is better adapted to the foldable part of the flexible display screen, which is conducive to avoiding squeezing the foldable part of the flexible display screen, thereby improving the structural reliability of the flexible display screen.
  • the first swing arm and the base can be rotatably connected via a virtual axis.
  • the base can be provided with a first arc groove
  • the first swing arm includes a first arc rotation block.
  • the first arc rotation block is accommodated in the first arc groove, and the first arc rotation block can slide along the groove surface of the first arc groove to realize the rotation of the first swing arm relative to the base.
  • the first swing arm and the base are rotatably connected via a virtual axis, so that the space of the base occupied by the first swing arm can be smaller, which is conducive to realizing the miniaturization design of the rotating shaft mechanism.
  • the base may also be provided with a second arc groove
  • the second swing arm includes a second arc rotating block
  • the second rotating block may be accommodated in the second arc groove
  • the second arc rotating block may slide along the groove surface of the second arc groove to realize the rotation of the second swing arm relative to the base.
  • the second swing arm and the base may also be rotatably connected via a virtual axis, so that the space occupied by the second swing arm on the base is small, which is conducive to realizing the miniaturization design of the rotating shaft mechanism.
  • the first housing fixing frame when the first support arm is slidably connected to the first housing fixing frame, the first housing fixing frame may be provided with a first slide groove, the first support arm is accommodated in the first slide groove, and the first support arm can slide in the first slide groove along the first direction.
  • the second housing fixing frame is provided with a second slide groove, the second support arm is accommodated in the second slide groove, and the second support arm can slide in the second slide groove along the second direction.
  • the first housing fixing frame may further include a first mounting groove, the groove wall of the first mounting groove is provided with a first notch, and the first mounting groove is connected with the first slide groove through the first notch.
  • the rotating shaft mechanism also includes a first damping module, the first damping module includes a first elastic member and a first damping bracket, the first damping bracket includes a first protrusion, the first damping bracket is installed in the first mounting groove, and under the elastic force of the first elastic member, the first protrusion can slide along the first notch and extend into the first slide groove.
  • the surface of the first support arm facing the first mounting groove is also provided with a second protrusion, when the first protrusion extends into the first slide groove, along the first direction, the first protrusion and the side opposite to the second protrusion abut against each other, and a damping force is generated between the first protrusion and the second protrusion, so that the first protrusion blocks the first support arm from continuing to slide along the first slide groove, thereby keeping the first housing fixing frame in the corresponding rotation position.
  • the damping force between the first support arm and the first damping module it can make the user have a more obvious sense of frustration in the process of opening and closing the electronic device, so as to improve the user experience.
  • the second housing fixing frame may further include a second mounting groove, the groove wall of the second mounting groove is provided with a second notch, and the second mounting groove is connected with the second slide groove through the second notch.
  • the shaft mechanism also includes a second damping module, the second damping module includes a second elastic member and a second damping bracket, the second damping bracket includes a third protrusion, the second damping bracket is installed in the second mounting groove, and under the elastic force of the second elastic member, the third protrusion can slide along the second notch and extend into the second slide groove.
  • the surface of the second support arm facing the second mounting groove is also provided with a fourth protrusion, when the third protrusion extends into the second slide groove, the third protrusion and the side opposite to the fourth protrusion abut against each other along the second direction.
  • a damping force is generated between the third protrusion and the second four protrusions, so that the third protrusion blocks the second support arm from continuing to slide along the second slide groove, thereby keeping the second housing fixing frame in the corresponding rotation position.
  • the damping force between the second support arm and the second damping module it can make the user have a more obvious sense of frustration in the process of opening and closing the electronic device, so as to enhance the user experience.
  • the first support arm includes two oppositely arranged first connecting arms, the two first connecting arms are slidably connected to the first shell fixing frame, and the first damping module is located between the two first connecting arms, so that the structure of the first rotating assembly can be more compact, which is conducive to reducing the size of the first rotating assembly, so as to facilitate the miniaturization design of the rotating shaft mechanism.
  • the second support arm may include two oppositely arranged second connecting arms, which are slidably connected to the second shell fixing frame, and the second damping module is located between the two second connecting arms, so that the structure of the second rotating assembly is more compact, which is conducive to reducing the size of the second rotating assembly, so as to facilitate the miniaturization design of the rotating shaft mechanism.
  • the first rotating assembly further includes a first support plate, the first support plate includes a first plate surface and a second plate surface disposed opposite to each other, the first plate surface is used to support the flexible display screen, the second plate surface is provided with a third track groove, the first support arm is provided with a first guide structure, the first guide structure is inserted in the third track groove, and the first guide structure can slide along the third track groove.
  • the second rotating assembly further includes a second support plate
  • the second support plate includes a third plate surface and a fourth plate surface disposed opposite to each other
  • the third plate surface is used to support the flexible display screen
  • the fourth plate surface is provided with a fourth track groove
  • the second support arm is provided with a second guide structure
  • the second guide structure is inserted in the fourth track groove
  • the second guide structure can slide along the fourth track groove.
  • the second shell fixing frame drives the second support arm and the second swing arm to rotate around the base, and the second guide structure slides along the third track groove to drive the second support plate to rotate relative to the second shell fixing frame, and drives the end of the second support plate close to the base to move in a direction away from the base, so that a screen-holding space for accommodating the bendable part of the flexible display screen can be formed between the first support plate, the base and the second support plate.
  • the first shell fixing frame also includes a fifth track groove
  • the first rotating assembly also includes a third support plate
  • the third support plate includes a first sliding portion and a first support arm
  • the first sliding portion is inserted into the fifth track groove
  • the first shell fixing frame rotates around the base to drive the third support plate to rotate around the base
  • the first sliding portion slides along the fifth track groove.
  • the first support plate also includes a third slide groove, and the first support portion can slide along the third slide groove.
  • the first support portion includes a fifth board surface. When the electronic device is in a closed state, the third support plate avoids the first swing arm.
  • the third support plate is located on the side of the first swing arm facing the flexible display screen, and the first board surface and the fifth board surface are connected to form a support surface for supporting the flexible display screen, which is conducive to improving the integrity of the support surface of the hinge mechanism for supporting the flexible display screen, thereby achieving flat support for the flexible display screen.
  • the second shell fixing frame also includes a sixth track groove
  • the second rotating assembly also includes a fourth support plate
  • the fourth support plate includes a second sliding portion and a second support portion
  • the second sliding portion is inserted into the sixth track groove
  • the second shell fixing frame rotates around the base to drive the fourth support plate to rotate around the base
  • the second sliding portion slides along the sixth track groove.
  • the second support plate also includes a fourth slide groove, the second support portion can slide along the fourth slide groove, and the second support portion includes a sixth panel surface for supporting the flexible display screen.
  • the fourth support plate When the electronic device is in an unfolded state, the fourth support plate is located on the side of the second swing arm facing the flexible display screen, and the third panel surface and the sixth panel surface are connected to form a support surface for supporting the flexible display screen, which is conducive to improving the integrity of the support surface of the hinge mechanism for supporting the flexible display screen, thereby achieving flat support for the flexible display screen.
  • the specific setting form of the fifth track groove and the third slide groove is not limited.
  • the fifth track groove is a linear groove
  • the third slide groove is a linear groove.
  • the first sliding part can slide in the fifth track groove relative to the first shell fixing frame along the third direction
  • the first support part can slide in the third slide groove relative to the first support plate along the fourth direction.
  • the angle between the third direction and the fourth direction is greater than 0°, so that the first shell fixing frame and the first support plate limit the movement of the third support plate in the direction toward the base, thereby preventing the third support plate from falling off.
  • the sixth track groove may be a linear groove
  • the fourth slide groove may also be a linear groove.
  • the second sliding portion may slide in the sixth track groove relative to the second housing fixing frame along the fifth direction
  • the second supporting portion may slide in the fourth slide groove relative to the second supporting plate along the sixth direction.
  • the third support plate may further include a first abutment portion, and when the electronic device is in a closed state, the first abutment portion abuts against the first housing fixing frame, and the first housing fixing frame provides a supporting force for the first abutment portion in a direction away from the base.
  • the third support arm can be prevented from falling off in the closed state, thereby improving the structural reliability of the first rotating assembly, and further improving the structural reliability of the rotating shaft mechanism.
  • the fourth support plate also includes a second abutment portion, and when the electronic device is in a closed state, the second abutment portion abuts against the second housing fixing frame, and the second housing fixing frame provides a supporting force for the second abutment portion in a direction away from the base, thereby preventing the fourth support arm from falling off in the closed state, thereby improving the structural reliability of the second rotating assembly, and further improving the structural reliability of the rotating shaft mechanism.
  • the base may further include a bearing surface, which can be used to support the flexible display screen, and when the electronic device is in a closed state, the bearing surface, the first supporting surface and the third supporting surface can form a supporting surface for supporting the flexible display screen, so as to enhance the integrity of the supporting surface of the hinge mechanism for supporting the flexible display screen, thereby achieving flat support for the flexible display screen.
  • a bearing surface which can be used to support the flexible display screen, and when the electronic device is in a closed state, the bearing surface, the first supporting surface and the third supporting surface can form a supporting surface for supporting the flexible display screen, so as to enhance the integrity of the supporting surface of the hinge mechanism for supporting the flexible display screen, thereby achieving flat support for the flexible display screen.
  • the present application further provides an electronic device, which includes a first shell, a second shell, and a hinge mechanism of the first aspect.
  • the first shell and the second shell are arranged on opposite sides of the hinge mechanism, the first shell fixing frame is fixedly connected to the first shell, and the second shell fixing frame is fixedly connected to the second shell.
  • the flexible display screen continuously covers the first shell, the second shell, and the hinge mechanism, and the flexible display screen is fixedly connected to the first shell and the second shell.
  • the hinge mechanism, the first shell, and the second shell are connected together. At the same time, they play the role of flattening the flexible display screen, thereby ensuring the integrity of the electronic device in the unfolded state.
  • the two shells rotate towards each other to drive the flexible display screen to rotate, which can effectively prevent the flexible display screen from deforming and reduce the risk of damage to the flexible display screen.
  • FIG1 is a schematic diagram of a structure of an electronic device in a closed state provided by an embodiment of the present application
  • FIG2 is a schematic diagram of a structure of an electronic device in an unfolded state provided by an embodiment of the present application
  • FIG3 is a schematic structural diagram of a rotating shaft mechanism provided in an embodiment of the present application.
  • FIG4 is an exploded view of a rotating shaft mechanism provided in an embodiment of the present application.
  • FIG5 is a schematic structural diagram of a first swing arm provided in an embodiment of the present application.
  • FIG6 is a schematic diagram of a structure of a base provided in an embodiment of the present application.
  • FIG7 is a schematic structural diagram of a first housing fixing frame provided in an embodiment of the present application.
  • FIG8 is a schematic structural diagram of a first radial rotary arm provided in an embodiment of the present application when the electronic device is in an unfolded state;
  • FIG9 is a top view of the hinge mechanism provided by an embodiment of the present application when the electronic device is in an unfolded state
  • Fig. 10 is a cross-sectional view of the rotating shaft mechanism shown in Fig. 9 at A-A;
  • FIG11 is a schematic structural diagram of the rotating shaft mechanism shown in FIG10 when the electronic device is in an intermediate state
  • FIG12 is a schematic structural diagram of the rotating shaft mechanism shown in FIG10 when the electronic device is in a closed state
  • FIG13 is a schematic structural diagram of a first radial rotary arm of the rotary shaft mechanism shown in FIG12;
  • FIG14 is a schematic diagram of a matching relationship between a first radial spiral arm and a first support arm provided in an embodiment of the present application;
  • FIG15a is a schematic diagram of a partial structure of a rotating shaft mechanism provided in an embodiment of the present application.
  • FIG15b is another partial structural schematic diagram of the rotating shaft mechanism provided in an embodiment of the present application.
  • FIG15c is another partial structural schematic diagram of the rotating shaft mechanism provided in an embodiment of the present application.
  • FIG16 is a schematic structural diagram of a first damping module provided in an embodiment of the present application.
  • FIG17 is another cross-sectional view of the hinge mechanism provided by an embodiment of the present application when the electronic device is in a closed state
  • FIG18 is another cross-sectional view of the hinge mechanism provided by an embodiment of the present application when the electronic device is in a closed state
  • FIG19a is another cross-sectional view of the hinge mechanism provided by an embodiment of the present application when the electronic device is in a closed state;
  • FIG19b is another cross-sectional view of the hinge mechanism provided by an embodiment of the present application when the electronic device is in a closed state;
  • FIG. 20 is a schematic structural diagram of the hinge mechanism shown in FIG. 19 a when the electronic device is in an unfolded state.
  • references to "one embodiment” or “some embodiments” etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application.
  • the phrases “in one embodiment”, “in some embodiments”, “in some other embodiments”, “in some other embodiments”, etc. that appear at different places in this specification do not necessarily refer to the same embodiment, but mean “one or more but not all embodiments", unless otherwise specifically emphasized in other ways.
  • the terms “including”, “comprising”, “having” and their variations all mean “including but not limited to”, unless otherwise specifically emphasized in other ways.
  • the hinge mechanism can be applied to, but not limited to, foldable electronic devices such as mobile phones, personal digital assistants (PDAs), laptop computers or tablet computers.
  • PDAs personal digital assistants
  • FIG. 1 is a structural schematic diagram of an electronic device provided in an embodiment of the present application.
  • the electronic device is in a closed state.
  • the electronic device may also include two shells and a flexible display screen (not shown in FIG. 1).
  • the two shells of the electronic device may be named as the first shell 2 and the second shell 3, respectively.
  • the first shell 2 and the second shell 3 are located on both sides of the hinge mechanism 1 and can rotate around the hinge mechanism 1.
  • the electronic device provided in the present application may be an inward folding electronic device, which can be closed and unfolded according to different usage scenarios when in use.
  • Figure 2 is a schematic diagram of the structure of the electronic device in an unfolded state.
  • the first shell 2 and the second shell 3 are still located on both sides of the hinge mechanism 1, and the first shell 2 and the second shell 3 can support the flexible display screen 4, so that the flexible display screen 4 is in a flat state.
  • the process of the electronic device changing from the unfolded state shown in FIG. 2 to the closed state shown in FIG. 1 , or from the closed state shown in FIG. 1 to the unfolded state shown in FIG. 2 is the process of the first shell 2 and the second shell 3 rotating around the hinge mechanism 1, and in the above process, the first shell 2 and the second shell 3 can drive the flexible display screen 4 to fold or unfold accordingly.
  • the hinge mechanism 1 is a key functional component in a foldable electronic device, and it can be set corresponding to the foldable part of the flexible display screen 4. Therefore, the hinge mechanism 1 plays an important role in supporting the foldable part of the flexible display screen 4 when the electronic device is in the unfolded state shown in FIG.
  • the flexible display screen 4 may be squeezed or pulled, which may easily cause damage to the flexible display screen 4 after the electronic device is folded multiple times.
  • the hinge mechanism 1 provided in the present application is intended to solve the above-mentioned problems, so that the components of the hinge mechanism 1 can meet the strength requirements, and in the process of the first shell 2 and the second shell 3 of the electronic device rotating around the hinge mechanism 1, the components of the hinge mechanism 1 can always avoid the foldable part of the flexible display screen 4, and the screen space formed by the first shell 2, the second shell 3 and the hinge mechanism 1 when the electronic device is in a closed state can meet the folding requirements of the flexible display screen 4, and the extension length of the support surface formed by the first shell 2, the second shell 3 and the hinge mechanism 1 in the unfolded state can be adapted to the unfolded length of the flexible display screen 4, so as to avoid deformation of the flexible display screen 4, reduce the compression or pulling stress on the flexible display screen 4, so as to extend the service life of the flexible display screen 4 and improve the reliability of the electronic device.
  • FIG. 3 is a schematic diagram of the structure of the hinge mechanism 1 provided in an embodiment of the present application.
  • the hinge mechanism 1 may include a base 101 and a rotating module 102.
  • the number of rotating modules 102 in the hinge mechanism 1 is not limited in the present application, and the hinge mechanism 1 may include only one rotating module 102 or may include multiple rotating modules 102.
  • the multiple rotating modules 102 may be arranged at intervals along the axial direction of the hinge mechanism 1.
  • the axial direction of the hinge mechanism 1 is the extension direction of the axis of rotation of the first shell 2 and the second shell 3 shown in FIG. 2 around the hinge mechanism 1. It can be understood that the first shell 2 and the second shell 3 are rotatably connected by multiple rotating modules 102, which can effectively improve the stability of the first shell 2 and the second shell 3 of the electronic device relative to the hinge mechanism 1.
  • the rotating module 102 includes a first rotating component 1021 and a second rotating component 1022.
  • the first rotating component 1021 and the second rotating component 1022 are located on opposite sides of the base 101, and the first rotating component 1021 and the second rotating component 1022 are rotatably connected to the base 101.
  • the process of the electronic device using the hinge mechanism 1 from the unfolded state to the closed state is the process of the first rotating component 1021 and the second rotating component 1022 rotating around the base 101 in opposite directions; and the process of the electronic device from the closed state to the unfolded state is the process of the first rotating component 1021 and the second rotating component 1022 rotating around the base 101 in opposite directions.
  • the first rotating component 1021 may include a first swing arm 10211, and the first swing arm 10211 is rotatably connected to the base 101.
  • the first swing arm 10211 and the base 101 can be rotatably connected by a virtual axis, which can help reduce the space occupied by the first swing arm 10211 on the base 101, thereby helping to reduce the volume of the rotating module 102, so as to realize the miniaturized design of the rotating shaft mechanism 1.
  • FIG. 5 is a structural schematic diagram of the first swing arm 10211 provided in an embodiment of the present application.
  • the end of the first swing arm 10211 facing the base 101 may be provided with a first arc-shaped rotating block 102111.
  • FIG. 6 is a structural schematic diagram of the base 101 provided in an embodiment of the present application.
  • the base 101 may be provided with a first arc-shaped groove 1011.
  • the first arc-shaped rotating block 102111 can be accommodated in the first arc-shaped groove 1011, and the first arc-shaped rotating block 102111 can slide along the groove surface of the first arc-shaped groove 1011, so that the first swing arm 10211 can rotate around the base 101 by sliding the first arc-shaped rotating block 102111 along the groove surface of the first arc-shaped groove 1011.
  • the first swing arm 10211 and the base 101 can also be rotatably connected via a solid shaft, thereby improving the reliability of the rotational connection between the first swing arm 10211 and the base 101, and further improving the structural reliability of the rotating shaft mechanism 1.
  • the first rotating assembly 1021 may further include a first radial rotating arm 10212 and a first housing fixing frame 10213, wherein the first radial rotating arm 10212 is located between the first swing arm 10211 and the first housing fixing frame 10213, the first radial rotating arm 10212 is rotationally connected to the first swing arm 10211, and the first radial rotating arm 10212 is rotationally connected to the first housing fixing frame 10213.
  • the first radial rotating arm 10212 includes a first connecting portion 102121 and a second connecting portion 102122, wherein the first connecting portion 102121 is rotationally connected to the first swing arm 10211, and the second connecting portion 102122 is rotationally connected to the first housing fixing frame 10213.
  • the first connection portion 102121 of the first radial swing arm 10212 can be rotatably connected to the first swing arm 10211 through the first rotating shaft 102113, and the axis of the first rotating shaft 102113 extends along the first direction.
  • FIG. 7 is a structural schematic diagram of the first shell fixing frame 10213 provided in an embodiment of the present application.
  • the second connection portion 102122 can be rotatably connected to the first shell fixing frame 10213 through the second rotating shaft 1021311, and the axis of the second rotating shaft 1021311 extends along the first direction.
  • the rotation axis of the first radial swing arm 10212 extends along the first direction.
  • the first direction is perpendicular to the length direction of the base 101, which can also be understood as the direction in which the first shell fixing frame 10213 moves toward or away from the base 101.
  • the first swing arm 10211 may be provided with a first mounting hole 102112.
  • the first connection portion 102121 of the first radial swing arm 10212 may be provided with a second mounting hole (not shown in FIG. 4 ), and the first rotating shaft 102113 may be simultaneously penetrated through the first mounting hole 102112 and the second mounting hole.
  • first swing arm 10211 and the first radial swing arm 10212 can also use other possible methods to achieve the limit in the first direction, which will not be introduced one by one here.
  • the second connecting portion 102122 of the first radial rotary arm 10212 may be provided with a first clamping groove 1021221.
  • the first housing fixing frame 10213 is provided with a first clamping portion 102131, which may be inserted into the first clamping groove 1021221.
  • the second rotating shaft 1021311 may be simultaneously penetrated through the groove wall of the first clamping groove 1021221 and the first clamping portion 102131, so that the first radial rotary arm 10212 and the first housing fixing frame 10213 can be limited in the first direction, and the first radial rotary arm 10212 can also be rotated relative to the first housing fixing frame 10213.
  • other possible methods can also be used to achieve the limitation of the first radial swing arm 10212 and the first shell fixing frame 10213 along the first direction.
  • a stop portion can be set at the two ends of the second rotating shaft 1021311 respectively with reference to the connection method between the first radial swing arm 10212 and the first swing arm 10211, so as to achieve the limitation of the first swing arm 10211 and the first radial swing arm 10212 in the first direction.
  • the first radial swing arm 10212 can also be rotatably connected to the first shell fixing frame 10213 and the first swing arm 10211 through the same rotating shaft to simplify the structure of the first rotating assembly 1021 and help improve the consistency of the rotation of the first swing arm 10211, the first radial swing arm 10212 and the first shell fixing frame 10213 around the base 101.
  • first swing arm 10211 and the first housing fixing frame 10213 are connected only through the first radial swing arm 10212, its structure is relatively simple and occupies less space, which can be conducive to realizing the miniaturization and lightness of the rotating shaft mechanism 1.
  • first rotating components 1021 of two adjacent rotating modules 102 may share a first swing arm 10211, and one first swing arm 10211 may be provided with two first arc-shaped rotating blocks 102111, and one first swing arm 10211 may be rotatably connected to two first radial rotating arms 10212.
  • This can help simplify the structure of the rotating shaft mechanism 1 and make the structure of the rotating shaft mechanism 1 more compact.
  • the first rotating assembly 1021 may further include a first supporting arm 10214, the first supporting arm 10214 is rotatably connected to the base 101, and the axis of rotation of the first supporting arm 10214 around the base 101 and the axis of rotation of the first swing arm 10211 around the base 101 are both parallel to the length direction of the base 101 and do not overlap each other.
  • the first supporting arm 10214 may be rotatably connected to the base 101 via a pin shaft to improve the reliability of the rotatable connection between the first supporting arm 10214 and the base 101.
  • the first support arm 10214 is connected to the first housing fixing frame 10213 by sliding along the first direction.
  • the first housing fixing frame 10213 is provided with a first slide groove 102132, the first support arm 10214 is accommodated in the first slide groove 102132, and the first support arm 10214 can slide along the first direction in the first slide groove 102132.
  • a first slideway can be provided in the first slide groove 102132, and a first slider can be provided in the first support arm 10214, so that the first slider can be clamped in the first slideway, so that the first support arm 10214 can be limited to the first housing fixing frame 10213, and the first slideway can also guide the sliding of the first support arm 10214 along the first housing fixing frame 10213.
  • the second rotating assembly 1022 can be arranged with reference to the first rotating assembly 1021.
  • the second rotating assembly 1022 can include a second swing arm 10221.
  • the structure of the second swing arm 10221 can also be represented by Fig. 5.
  • the second swing arm 10221 is provided with a second arc-shaped rotating block 102211 at one end facing the base 101.
  • the base 101 is provided with a second arc-shaped groove 1012, and the second arc-shaped rotating block 102211 can be accommodated in the second arc-shaped groove 1012, and the second arc-shaped rotating block 102211 can slide along the groove surface of the second arc-shaped groove 1012, so that the second swing arm 10221 is rotatably connected with the base 101 by sliding the second arc-shaped rotating block 102211 along the arc-shaped surface of the second arc-shaped groove 1012.
  • the second arc-shaped rotating block 102211 may be, but is not limited to, a circular arc-shaped rotating block, and the second arc-shaped slot 1012 may be, but is not limited to, It is understandable that when the second arc-shaped rotating block 102211 is an arc-shaped rotating block, its surface for contacting the groove surface of the second arc-shaped groove 1012 can be an arc surface, and the groove surface of the second arc-shaped groove 1012 is also an arc surface, and the centers of the two arc surfaces coincide.
  • the second swing arm 10221 and the base 101 can also be rotatably connected via a solid shaft, thereby improving the reliability of the rotational connection between the second swing arm 10221 and the base 101, and further improving the structural reliability of the rotating shaft mechanism 1.
  • the second rotating assembly 1022 may further include a second radial rotating arm 10222 and a second housing fixing frame 10223, the second radial rotating arm 10222 is located between the second swing arm 10221 and the second housing fixing frame 10223, the second radial rotating arm 10222 includes a third connecting portion 102221 and a fourth connecting portion 102222, wherein the third connecting portion 102221 is rotationally connected to the second swing arm 10221, and the fourth connecting portion 102222 is rotationally connected to the second housing fixing frame 10223.
  • the second radial rotating arm 10222 includes a third connecting portion 102221 and a fourth connecting portion 102222, wherein the third connecting portion 102221 is rotationally connected to the second swing arm 10221, and the fourth connecting portion 102222 is rotationally connected to the second housing fixing frame 10223.
  • the third connecting portion 102221 of the second radial rotating arm 10222 is rotationally connected to the second swing arm 10221 via a third rotating shaft 102213, and the axis of the third rotating shaft 102213 extends along the second direction.
  • the fourth connecting portion 102222 is rotationally connected to the second housing fixing frame 10223 via the fourth rotating shaft 1022311, and the axis of the fourth rotating shaft 1022311 extends along the second direction. Then the rotation axis of the second radial swing arm 10222 extends along the second direction.
  • the second direction is perpendicular to the length direction of the base, which can also be understood as the direction in which the second housing fixing frame 10223 moves toward or away from the base 101.
  • the relative positions of the second swing arm 10221, the second radial swing arm 10222, and the second housing fixing frame 10223 are fixed.
  • the fixing method of the relative positions of the second swing arm 10221 and the second radial swing arm 10222 in the second direction can be set with reference to the fixing method of the relative positions of the first swing arm 10211 and the first radial swing arm 10212 in the first direction.
  • the third rotating shaft 102213 can be simultaneously penetrated through the third mounting hole 102212 on the second swing arm 10221 and the fourth mounting hole of the third connecting portion 102221 of the second radial swing arm 10222, and a stopper is respectively provided at the two ends of the third rotating shaft 102213.
  • the fixing method of the relative position of the second radial swing arm 10222 and the second shell fixing frame 10223 in the second direction can be set with reference to the fixing method of the relative position of the first radial swing arm 10212 and the first shell fixing frame 10213 in the first direction.
  • the fourth connecting portion 102222 can be provided with a second card slot 1022221.
  • the second shell fixing frame 10223 is provided with a second card connection portion 102231, and the second card connection portion 102231 is inserted into the second card slot 1022221.
  • the fourth rotating shaft 1022311 is penetrated through the groove wall of the second card slot 1022221 and the second card connection portion 102231.
  • the second radial swing arm 10222 can also be rotatably connected to the second shell fixing frame 10223 and the second swing arm 10221 through the same rotating shaft to simplify the structure of the second rotating assembly 1022 and help improve the consistency of the rotation of the second swing arm 10221, the second radial swing arm 10222 and the second shell fixing frame 10223 around the base 101.
  • the second swing arm 10221 can drive the second radial swing arm 10222 and the second housing fixing frame 10223 to rotate around the base 101 together when rotating around the base 101, and the motion trajectories of the three rotating around the base 101 are the same. It can be seen that the movement of the second swing arm 10221 driving the second housing fixing frame 10223 around the base 101 is a first-level motion transmission, and its transmission accuracy is relatively high.
  • the second swing arm 10221 and the second housing fixing frame 10223 are connected only through the second radial swing arm 10222, its structure is relatively simple and occupies less space, which can be conducive to realizing the miniaturization and lightweight design of the rotating shaft mechanism 1.
  • the second rotating assembly 1022 may further include a second supporting arm 10224, the second supporting arm 10224 is rotatably connected to the base 101, and the axis of rotation of the second supporting arm 10224 around the base 101 and the axis of rotation of the second swing arm 10221 around the base 101 are both parallel to the length direction of the base 101 and do not overlap each other.
  • the second supporting arm 10224 may be rotatably connected to the base 101 via a pin shaft to improve the reliability of the rotatable connection between the second supporting arm 10224 and the base 101.
  • the second support arm 10224 is slidably connected to the second shell fixing frame 10223.
  • the second shell fixing frame 10223 is provided with a second slide groove 102232, the second support arm 10224 is accommodated in the second slide groove 102232, and the second support arm 10224 can slide along the second direction in the second slide groove 102232.
  • a second slideway can be provided in the second slide groove 102232, and a second slider can be provided on the second support arm 10224, so that the second slider can be clamped in the second slideway, so that the second support arm 10224 can be limited to the second shell fixing frame 10223, and the second slideway can also guide the sliding of the second support arm 10224 along the second shell fixing frame 10223.
  • the axis of rotation of the first support arm 10214 around the base 101 is parallel to but not coincident with the axis of rotation of the first swing arm 10211 around the base 101
  • the axis of rotation of the second support arm 10224 around the base 101 is parallel to but not coincident with the axis of rotation of the second swing arm 10221 around the base 101. Therefore, there is a phase difference in the process of rotation of the first swing arm 10211 and the first support arm 10214 relative to the base 101, and there is a phase difference in the process of rotation of the second swing arm 10221 and the second support arm 10224 relative to the base 101.
  • the first support arm 10214 and the first shell fixing frame 10213 can slide relative to each other, and the second support arm 10224 and the second shell fixing frame 10223 can slide relative to each other, which can enable the first shell fixing frame 10213 and the second shell fixing frame 10223 to move in a direction toward or away from the base 101, so that during the process of the first rotating component 1021 and the second rotating component 1022 rotating toward each other, the first shell fixing frame 10213 slides relative to the first support arm 10214 in a direction away from the rotation axis (base 101) of the first support arm 10214, and the second shell fixing frame 10223 slides relative to the first support arm 10214.
  • the second support arm 10224 slides in a direction away from the rotation axis (base 101) of the second support arm 10224, thereby increasing the extension length of the first rotating component 1021 and the second rotating component 1022 relative to the base 101, which can form a screen-capacitating space between the first rotating component 1021, the second rotating component 1022 and the base 101 that meets the bending requirements of the foldable part of the flexible display screen.
  • the first shell fixing frame 10213 will slide relative to the first support arm 10214 in the direction close to the rotation axis of the first support arm 10214, and the second shell fixing frame 10223 will slide relative to the second support arm 10224 in the direction close to the rotation axis of the second support arm 10224, thereby reducing the extension length of the first rotating component 1021 and the second rotating component 1022 relative to the base 101, thereby reducing the length of the hinge mechanism.
  • the extension length of the first rotating component 1021 and the second rotating component 1022 relative to the base 101 can adapt to the state of the flexible display screen, thereby avoiding pulling or squeezing of the flexible display screen 4, which is beneficial to improving the structural reliability of the flexible display screen 4 and reducing the risk of damage thereof.
  • the first swing arm 10211 is rotatably connected to the base 101, and the first swing arm 10211 is connected to the first shell fixing frame 10213 through the first radial swing arm 10212.
  • the first radial swing arm 10212 can be designed to avoid.
  • Figure 8 is a schematic structural diagram of the first radial swing arm 10212 provided in the embodiment of the present application when the electronic device is in the unfolded state.
  • the first radial swing arm 10212 also includes a first avoidance opening 102123, and the first avoidance opening 102123 is located between the first connecting portion 102121 and the second connecting portion 102122.
  • Figure 9 is a top view of the hinge mechanism 1 provided in an embodiment of the present application when the electronic device is in an unfolded state
  • Figure 10 is a cross-sectional view of the hinge mechanism 1 at A-A shown in Figure 9.
  • the base 101 also includes an appearance shell 1013, which is arranged away from the flexible display screen.
  • the appearance shell 1013 includes a first end 10131 and a second end 10132, wherein the first end 10131 is arranged toward the first shell fixing frame 10213, and the second end 10132 is arranged toward the second shell fixing frame 10223.
  • the appearance shell 1013 may also include an appearance surface 10133, which is arranged away from the flexible display screen, and during the rotation of the hinge mechanism 1, the appearance surface 10133 is always located outside the hinge mechanism 1.
  • the first end 10131 of the appearance shell 1013 when the electronic device is in the unfolded state, the first end 10131 of the appearance shell 1013 can be inserted into the first avoidance opening 102123.
  • the opening shape of the first avoidance opening 102123 can be set according to the shape of the first end 10131 of the appearance shell 1013, so that the first radial rotary arm 10212 can avoid the first end 10131 of the appearance shell 1013, and the rotating shaft mechanism 1 can also have a relatively complete appearance surface, which is conducive to improving the appearance of the electronic device.
  • the second radial arm 10222 further includes a second avoidance opening 102223, which is located between the third connection portion 102221 and the fourth connection portion 102222.
  • the second end 10132 of the appearance shell 1013 can be inserted into the second avoidance opening 102223.
  • the opening shape of the second avoidance opening 102223 can be set according to the shape of the second end 10132 of the appearance shell 1013, so that the second radial arm 10222 can avoid the second end 10132 of the appearance shell 1013, and the hinge mechanism 1 can also have a relatively complete appearance surface, which is conducive to improving the appearance of the electronic device.
  • first avoidance opening 102123 on the first radial swing arm 10212 and a second avoidance opening 102223 on the second radial swing arm 10222 it is possible to avoid interference between the first radial swing arm 10212 and the second radial swing arm 10222 and the outer shell 1013 of the base 101, and at the same time, the wall thickness of the portion of the first radial swing arm 10212 that is arranged opposite to the first avoidance opening 102123 can be increased in a direction away from the first avoidance opening 102123, and the wall thickness of the portion of the second radial swing arm 10222 that is arranged opposite to the second avoidance opening 102223 can be increased in a direction away from the second avoidance opening 102223, thereby increasing the structural reliability of the first radial swing arm 10212 and the second radial swing arm 10222, so that the structural strength of the first radial swing arm 10212 and the second radial swing arm 10222 meets the requirements, which is beneficial to improving the structural
  • the first radial spiral arm 10212 can also include a first avoidance portion 102126, the first avoidance portion 102126 is located between the first connecting portion 102121 and the second connecting portion 102122, and the first connecting portion 102121 and the second connecting portion 102122 are connected by the first avoidance portion 102126; the first avoidance portion 102126 is arranged opposite to the first avoidance opening 102123.
  • the surface of the first avoidance portion 102126 facing away from the first avoidance opening 102123 can be defined as a first connecting surface 1021261.
  • the second radial spiral arm 10222 may also include a second avoidance portion 102226, which is located between the third connection portion 102221 and the fourth connection portion 102222, and the third connection portion 102221 and the fourth connection portion 102222 are connected via the second avoidance portion 102226; the second avoidance portion 102226 is disposed opposite to the second avoidance opening 102223, and in the present application, the surface of the second avoidance portion 102226 that is away from the second avoidance opening 102223 may be defined as a second connection surface 1022261.
  • FIG. 11 is a schematic diagram of the structure of the rotating shaft mechanism 1 shown in FIG. 10 when the electronic device is in an intermediate state.
  • the intermediate state of the electronic device is any state in the process from the unfolded state to the closed state, or from the closed state to the unfolded state.
  • FIG. 10 and FIG. 11 it can be seen that when the electronic device is in the process from the unfolded state shown in FIG. 10 to the intermediate state shown in FIG. 11, the first end 10131 of the appearance shell 1013 can slide out from the first avoidance opening 102123 of the first radial rotary arm 10212, and the second end 10132 of the appearance shell 1013 can slide out from the second radial rotary arm 10212.
  • the first radial spiral arm 10212 and the second radial spiral arm 10222 can slide out into the second avoidance opening 102223 of the spiral arm 10222 .
  • the first radial spiral arm 10212 and the second radial spiral arm 10222 can also avoid interference with the appearance shell 1013 of the base 101 .
  • FIG. 12 is a schematic diagram of the structure of the hinge mechanism 1 shown in FIG. 10 when the electronic device is in a closed state.
  • FIG. 10 and FIG. 12 it can be seen that in the process of the electronic device changing from the unfolded state to the closed state, the relative position relationship between the first avoidance opening 102123 of the first radial rotary arm 10212 and the first shell fixing frame 10213 changes, and the relative position relationship between the second avoidance opening 102223 of the second radial rotary arm 10222 and the second shell fixing frame 10223 changes, and in this process, the first radial rotary arm 10212 rotates relative to the first shell fixing frame 10213, and the second radial rotary arm 10222 rotates relative to the second shell fixing frame 10223, and in this process, the first connecting surface 1021261 of the first radial rotary arm 10212 and the second connecting surface 1022261 of the second radial rotary arm 10222 both rotate toward the side away from the flexible display screen.
  • the hinge mechanism provided by the present application in the process of the electronic device rotating from the unfolded state to the closed state, the first support arm 10214 rotates around the base to drive the first radial rotary arm 10212 to rotate around its axis relative to the first swing arm 10211 and the first shell fixing frame 10213, and the second support arm 10224 rotates around the base to drive the second radial rotary arm 10222 to rotate around its axis relative to the second swing arm 10221 and the second shell fixing frame 10223, so that the first connection surface of the first radial rotary arm 10212 and the second connection surface of the second radial rotary arm 10222 are both rotated to the side away from the flexible display screen.
  • the thickness of the first avoidance portion 102126 of the first radial rotary arm 10212 and the second avoidance portion 102226 of the second radial rotary arm 10222 can be flexibly set or even thickened according to the strength requirements. Furthermore, because the first avoidance portion 102126 and the second avoidance portion 102226 rotate in a direction away from the flexible display screen during the folding process of the electronic device, the first avoidance portion 102126 and the second avoidance portion 102226 can be effectively prevented from interfering with the flexible display screen when the electronic device is in a closed state.
  • the hinge mechanism provided by the present application can ensure the structural strength of the entire first radial arm 10212 and the second radial arm 10222 while achieving the avoidance of the first radial arm 10212 and the second radial arm 10222 to the appearance shell and the flexible display screen, thereby facilitating the improvement of the structural reliability of the hinge mechanism.
  • FIG. 13 is a schematic structural diagram of the first radial arm 10212 of the hinge mechanism 1 shown in FIG. 12 , which is used to show the state of the first radial arm 10212 when the electronic device is in a closed state.
  • the first radial arm 10212 when the electronic device is in a closed state, in order to enable the hinge mechanism 1 to form a screen-accommodating space that meets the bending requirements of the flexible display screen 4, the first radial arm 10212 may also be provided with a first avoidance surface 102124.
  • the first avoidance surface 102124 is arranged toward the folding inner side of the hinge mechanism 1, so that the first avoidance surface 102124 avoids the foldable part of the flexible display screen.
  • the first avoidance surface 102124 may be provided on the first connecting portion 102121, and the first avoidance surface 102124 may be an arc-shaped concave surface.
  • the specific shape of the first avoidance surface 102124 is not limited, and it can be specifically set according to the bending shape of the foldable part of the flexible display screen 4.
  • the second radial arm 10222 may also be provided with a second avoidance surface 102224, which may be provided at the third connection portion 102221, and the second avoidance surface 102224 may be an arc-shaped concave surface.
  • the second avoidance surface 102224 is provided toward the folding inner side of the hinge mechanism 1, and when the electronic device is in a closed state, the first avoidance surface 102124 and the second avoidance surface 102224 may be provided opposite to each other, and the first avoidance surface 102124 and the second avoidance surface 102224 may avoid the foldable part of the flexible display screen 4. This may be beneficial to improving the force uniformity of the flexible display screen 4, thereby improving the structural reliability of the flexible display screen 4.
  • the surface of the first swing arm 10211 facing the inner side of the fold of the hinge mechanism 1 may also be an arc-shaped concave surface, and the arc-shaped concave surface of the first swing arm 10211 and the first avoidance surface 102124 may be connected to form a smooth avoidance surface.
  • the surface of the second swing arm 10221 facing the inner side of the fold of the hinge mechanism 1 may also be an arc-shaped concave surface, and the arc-shaped concave surface of the second swing arm 10221 and the second avoidance surface 102224 may be connected to form a smooth avoidance surface.
  • the first avoidance opening 102123 and the second avoidance opening 102223 can avoid the appearance shell when the electronic device is in the unfolded state.
  • the first connecting surface 1021261 and the second connecting surface 1022261 can be rotated in the direction away from the flexible display screen, thereby avoiding the first avoidance portion 102126 and the second avoidance portion 102226 from interfering with the flexible display screen.
  • the first avoidance surface 102124 and the second avoidance surface 102224 can face the foldable part of the flexible display screen to avoid the foldable part of the flexible display screen.
  • Such a design can achieve the avoidance of the hinge mechanism to the appearance shell and the flexible display screen, and can also ensure the structural strength of the hinge mechanism without increasing its size, thereby making the hinge mechanism both light and reliable.
  • the first support arm 10214 can slide relative to the first housing fixing frame 10213, and the second support arm 10224 can slide relative to the second housing fixing frame 10223.
  • the first support arm 10214 moves relative to the first radial swing arm 10212 while sliding relative to the first housing fixing frame 10213.
  • the second support arm 10224 moves relative to the second radial swing arm 10222 while sliding relative to the second housing fixing frame 10223.
  • the first radial rotary arm 10212 can be driven to rotate relative to the first swing arm 10211 and the first housing fixing frame 10213 by sliding the first support arm 10214 relative to the first housing fixing frame 10213.
  • the second radial rotary arm 10222 can be driven to rotate relative to the second swing arm 10221 and the second housing fixing frame 10223 by sliding the second support arm 10224 relative to the second housing fixing frame 10223.
  • FIG. 14 is a schematic diagram of a matching relationship between the first radial rotary arm 10212 and the first support arm 10214 provided in the embodiment of the present application.
  • the first radial rotary arm 10212 is provided with a first track groove 102125
  • the first support arm 10214 is provided with a first guide portion 102141, which can be inserted into the first track groove 102125.
  • the first guide portion 102141 can slide along the first track groove 102125.
  • FIG. 15a is a partial structural schematic diagram of the hinge mechanism 1 provided in an embodiment of the present application, which can be used to illustrate the relative positional relationship between the first support arm 10214, the first radial rotary arm 10212 and the base 101 when the electronic device is in the unfolded state.
  • the first avoidance opening 102123 of the first radial rotary arm 10212 avoids the first end 10131 of the appearance shell 1013 of the base 101.
  • FIG. 15b is another partial structural schematic diagram of the rotating shaft mechanism 1 provided in an embodiment of the present application, which can be used to show the relative positional relationship between the first support arm 10214, the first radial rotary arm 10212 and the base 101 when the electronic device is in an intermediate state.
  • FIG. 15a and FIG. 15b together it can be seen that in the process of the electronic device changing from the unfolded state to the closed state, the first guide portion 102141 of the first support arm 10214 slides toward the base 101 relative to the first track groove 102125, thereby driving the first radial rotary arm 10212 to rotate relative to the first swing arm 10211 and the first housing fixing frame 10213 at a set angle.
  • FIG. 15c is another partial structural schematic diagram of the hinge mechanism 1 provided in an embodiment of the present application, which can be used to show the relative positional relationship between the first support arm 10214, the first radial rotary arm 10212 and the base 101 when the electronic device is in a closed state.
  • the first avoidance surface 102124 of the first radial rotary arm 10212 faces the folding inner side of the hinge mechanism 1, so that the first radial rotary arm 10212 can avoid the foldable part of the flexible display screen, which can avoid squeezing the foldable part of the flexible display screen 4.
  • the shape of the first track groove 102125 can be fitted according to the track of the first swing arm 10211 and the first support arm 10214 rotating around the base 101 and the phase difference during the rotation of the first swing arm 10211 and the first support arm 10214.
  • the first track groove 102125 is a spiral groove.
  • the first guide portion 102141 slides along the first track groove 102125 to drive the first radial arm 10212 to rotate relative to the first swing arm 10211, so that when the electronic device is in the unfolded state, the first end 10131 of the appearance shell 1013 is inserted into the first avoidance opening 102123; and when the electronic device is in the closed state, the first avoidance surface 102124 of the first radial arm 10212 can avoid the foldable part of the flexible display screen.
  • the matching relationship between the second radial rotary arm 10222 and the second support arm 10224 is similar to the matching relationship between the first radial rotary arm 10212 and the first support arm 10214.
  • FIG. 14 may also be used to illustrate the matching relationship between the second radial rotary arm 10222 and the second support arm 10224, wherein the second radial rotary arm 10222 is provided with a second track groove 102225, and the second support arm 10224 is provided with a second guide portion 102241, which may be inserted into the second track groove 102225, and when the second support arm 10224 slides along the second housing fixing frame 10223, the second guide portion 102241 may slide along the second track groove 102225.
  • the shape of the second track groove 102225 can be fitted according to the track of the second swing arm 10221 and the second support arm 10224 rotating around the base 101 and the phase difference during the rotation of the second swing arm 10221 and the second support arm 10224.
  • the second track groove 102225 is a spiral groove.
  • the second guide portion 102241 slides along the second track groove 102225 to drive the second radial arm 10222 to rotate relative to the second swing arm 10221, so that when the electronic device is in the unfolded state, the second end 10132 of the appearance shell 1013 is inserted into the second avoidance opening 102223 of the second radial arm 10222, so as to achieve the avoidance of the second radial arm 10222 to the base 101.
  • the second guide portion 102241 of the second support arm 10224 slides relative to the second track groove 102225 toward the base 101, thereby driving the second radial rotary arm 10222 to rotate at a set angle relative to the second swing arm 10221 and the second housing fixing frame 10223.
  • the second avoidance surface 102224 of the second radial rotary arm 10222 can avoid the foldable part of the flexible display screen, so that the second radial rotary arm 10222 makes room for the screen space 5, which can avoid squeezing the foldable part of the flexible display screen.
  • the first rotating assembly 1021 may further include a first damping module 10215.
  • the first housing fixing frame 10213 further includes a first mounting groove 102133, the first damping module 10215 is mounted in the first mounting groove 102133, and a first notch 1021331 is formed in the groove wall of the first mounting groove 102133.
  • the first mounting groove 102133 can be arranged adjacent to the first slide groove 102132, and the first slide groove 102132 and the first mounting groove 102133 can be connected through the first notch 1021331.
  • the first damping module 10215 may include a first elastic member 102151 and a first damping bracket 102152.
  • the first elastic member 102151 may be, but is not limited to, a spring, and the first damping bracket 102152 includes a first protrusion 1021521. Referring to FIGS.
  • the first elastic member 102151 may press the first damping bracket 102152 toward the groove wall of the first mounting groove 102133, and under the elastic force of the first elastic member 102151, the first protrusion 1021521 of the first damping bracket 102152 may slide along the first notch 1021331 and extend into the first slide groove 102132.
  • first elastic member 102151 when the first elastic member 102151 is a spring, as shown in Figure 7, a first limiting column 1021332 can also be provided in the first mounting groove 102133, and the spring can be sleeved on the first limiting column 1021332, which can effectively prevent the first elastic member 102151 from bending during the process of the first elastic member 102151 squeezing the first damping bracket 102152, and can effectively improve the structural reliability of the first damping module 10215.
  • the first damping bracket 102152 can also include two first limiting portions 1021522, and the extension direction of the two first limiting portions 1021522 is the same as the direction of action of the elastic force of the first elastic member 102151.
  • the first elastic member 102151 can be located between the two first limiting portions 1021522, so that under the action of the two first limiting portions 1021522, the risk of bending of the first elastic member 102151 is further reduced, thereby improving the structural reliability of the first damping module 10215.
  • the first protrusion 1021521 when the first protrusion 1021521 extends into the first slide groove 102132, in the first direction, the first protrusion 1021521 abuts against the side opposite to the second protrusion 1021421, and a damping force is generated between the first protrusion 1021521 and the second protrusion 1021421, so that the first protrusion 1021521 blocks the first support arm 10214 from continuing to slide along the first slide groove 102132, thereby keeping the first housing fixing frame 10213 in the corresponding rotation position.
  • the user can have a more obvious sense of frustration when opening and closing the electronic device, thereby improving the user experience.
  • the first support arm 10214 may include two first connecting arms 102142 arranged opposite to each other, and the first housing fixing frame 10213 may be provided with a first sliding groove 102132 corresponding to each first connecting arm 102142, so that each first connecting arm 102142 can slide in the corresponding first sliding groove 102132 to realize the sliding connection between the first support arm 10214 and the first housing fixing frame 10213.
  • the two first connecting arms 102142 are arranged at intervals, and the first installation groove 102133 and the first damping module 10215 are located between the two first connecting arms 102142. In this way, the structure of the first rotating assembly 1021 can be more compact, which is conducive to realizing the miniaturization design of the rotating shaft mechanism 1.
  • the second protrusion 1021421 can be set on the surface of one of the first connecting arms 102142 facing the first mounting groove 102133, or a second protrusion 1021421 can be set on the surface of each first connecting arm 102142 facing the first mounting groove 102133, and it can be adaptively adjusted according to the number and setting position of the first protrusions 1021521 and the first notches 1021331.
  • the second rotating assembly 1022 further includes a second damping module 10225.
  • the second damping module 10225 can be arranged with reference to the first damping module 10215.
  • FIG. 7 can also be used to illustrate the structure of the second housing fixing frame 10223.
  • the second housing fixing frame 10223 further includes a second mounting groove 102233, the second damping module 10225 is mounted in the second mounting groove 102233, and the groove wall of the second mounting groove 102233 is provided with a second notch 1022331.
  • the second mounting groove 102233 can be arranged adjacent to the second slide groove 102232, and the second slide groove 102232 and the second mounting groove 102233 can be connected through the second notch 1022331.
  • FIG16 can also be used to illustrate the structure of the second damping module 10225.
  • the second damping module 10225 may include a second elastic member 102251 and a second damping bracket 102252.
  • the second elastic member 102251 may be, but is not limited to, a spring, and the second damping bracket 102252 includes a third protrusion 1022521.
  • the second elastic member 102251 may be a spring. 102252 is pressed against the groove wall of the second installation groove 102233 , and under the elastic force of the second elastic member 102251 , the third protrusion 1022521 of the second damping bracket 102252 can slide along the second notch 1022331 and extend into the second sliding groove 102232 .
  • a second limiting column 1022332 may be further provided in the second mounting groove 102233, and the spring may be sleeved on the second limiting column 1022332, which may effectively prevent the second elastic member 102251 from bending during the process of the second elastic member squeezing the second damping bracket, and may effectively improve the structural reliability of the second damping module 10225.
  • the second damping bracket 102252 may also include two second limiting portions 1022522, the extension direction of the two second limiting portions 1022522 is the same as the direction of action of the elastic force of the second elastic member 102251, and the second elastic member 102251 may be located between the two second limiting portions 1022522, so that under the action of the two second limiting portions 1022522, the risk of the second elastic member 102251 bending is further reduced, thereby improving the structural reliability of the second damping module 10225.
  • the second support arm 10224 can slide along the second slide groove 102232.
  • the surface of the second support arm 10224 facing the second mounting groove 102233 can be provided with a fourth protrusion 1022421.
  • the third protrusion 1022521 can always abut against the two inclined surfaces of the fourth protrusion 1022421 and the connecting surface between the two inclined surfaces, by reasonably designing the two inclined surfaces of the fourth protrusion 1022421 and the connecting surface between the two inclined surfaces, as well as the abutment method between the third protrusion 1022521 and the fourth protrusion 1022421, the second shell fixing frame 10223 can be maintained in the corresponding rotation position when the electronic device is in the unfolded state and the closed state; in addition, when the electronic device is folded from the intermediate state to the unfolded state or the closed state, the abutment force between the third protrusion 1022521 and the fourth protrusion 1022421 can be made smaller, then in the absence of external force, the fourth protrusion 1022421 can continue to slide along the second direction relative to the third protrusion 1022521 until it is in a stable unfolded state or closed state, thereby realizing the self-expanding function of the electronic device at the end stage of the
  • the fourth protrusion 1022421 can be arranged on the surface of one of the second connecting arms 102242 facing the second mounting groove 102233, or a fourth protrusion 1022421 can be arranged on the surface of each second connecting arm 102242 facing the second mounting groove 102233, and the fourth protrusion 1022421 can be adaptively adjusted according to the number and setting position of the third protrusion 1022521 and the second notch 1022331.
  • the first rotating assembly 1021 may further include a first support plate 10216.
  • the second rotating assembly 1022 may further include a second support plate 10226.
  • the first support plate 10216 includes a first plate surface 102161 and a second plate surface 102162 disposed opposite to each other, and the second support plate 10226 includes a third plate surface 102261 and a fourth plate surface 102262 disposed opposite to each other, and the first plate surface 102161 may be used to support the flexible display screen, and the third plate surface 102261 may be used to support the flexible display screen.
  • FIG. 17 is another cross-sectional view of the hinge mechanism 1 provided in an embodiment of the present application when the electronic device is in a closed state.
  • the hinge mechanism 1 provided in the present application the base 101 may include a bearing surface 1014 for supporting the flexible display screen.
  • a triangular screen-accommodating space 5 may be formed between the first plate surface 102161, the second plate surface 102162 and the bearing surface 1014. The bendable portion of the flexible display screen of the electronic device may be accommodated in the screen-accommodating space 5 to form a water drop-like shape.
  • the first support plate 10216 is rotatably connected to the first shell fixing frame 10213
  • the second support plate 10226 is rotatably connected to the second shell fixing frame 10223.
  • the first shell fixing frame 10213 may also be provided with a first rotation groove 102134
  • the first rotation groove 102134 may be a circular arc groove.
  • FIG. 18 is another cross-sectional view of the hinge mechanism 1 provided in an embodiment of the present application when the electronic device is in a closed state, which can be used to show the matching relationship between the first support plate 10216 and the first shell fixing frame 10213.
  • the end of the first support plate 10216 facing the first shell fixing frame 10213 may be provided with a first rotating portion 102163, and the first rotating portion 102163 may be provided as an arc rotating portion, which may be an exemplary circular arc rotating portion.
  • the first rotating portion 102163 can be installed in the first rotating groove 102134, and can be moved by the first rotating portion
  • the first support plate 102163 slides along the groove surface of the first rotation groove 102134 to achieve relative rotation between the first support plate 10216 and the first shell fixing frame 10213 .
  • the first shell fixing frame 10213 can be provided with a plurality of first rotation grooves 102134, and the first support plate 10216 can be provided with a plurality of first rotating parts 102163, so that the first rotating parts 102163 can be installed one by one in a first rotation groove 102134, so that the relative rotation between the first support plate 10216 and the first shell fixing frame 10213 can be achieved by each first rotating part 102163 sliding around the groove surface of the corresponding first rotation groove 102134.
  • the second housing fixing frame 10223 may also be provided with a second rotation groove 102234, which may be an arc-shaped groove.
  • the end of the second support plate 10226 facing the second housing fixing frame 10223 may be provided with a second rotating portion 102263, which may be an arc-shaped rotating portion, and may be an arc-shaped rotating portion as an example.
  • the second rotating portion 102263 may be installed in the second rotation groove 102234, and the second rotating portion 102263 may slide along the groove surface of the second rotation groove 102234 to achieve relative rotation between the second support plate 10226 and the second housing fixing frame 10223.
  • the second shell fixing frame 10223 may be provided with a plurality of second rotating grooves 102234
  • the second support plate 10226 may be provided with a plurality of second rotating parts 102263, so that the second rotating parts 102263 can be installed one by one in a second rotating groove 102234, so that the relative rotation between the second support plate 10226 and the second shell fixing frame 10223 can be achieved by each second rotating part 102263 sliding around the groove surface of the corresponding second rotating groove 102234, thereby improving the stability of the second support plate 10226 rotating around the second shell fixing frame 10223.
  • the first support plate 10216 can also be rotationally connected to the first shell fixing frame 10213 through a pin, so that the first support plate 10216 and the first shell fixing frame 10213 are rotationally connected through a physical axis.
  • the second support plate 10226 can also be rotationally connected to the second shell fixing frame 10223 through a pin, so that the first support plate 10216 and the first shell fixing frame 10213 are rotationally connected through a physical axis.
  • the first board surface 102161 of the first support plate 10216, the second board surface 102162 of the second support plate 10226 and the bearing surface of the base can be in the same plane, thereby achieving flat support for the flexible display screen of the electronic device.
  • the first housing fixing frame 10213 can drive the first support arm 10214 to rotate around the base 101
  • the second housing fixing frame 10223 can drive the second support arm 10224 to rotate around the base.
  • the first support plate 10216 is driven to rotate around the first housing fixing frame 10213 by the rotation of the first support arm 10214 around the base 101.
  • the second support plate 10226 can also be driven to rotate around the second housing fixing frame 10223 by the rotation of the second support arm 10224 around the base 101.
  • the second plate surface 102162 of the first support plate 10216 may be provided with a first guide member 102164, and the first guide member 102164 may be provided with a third track groove 1021641.
  • the first support arm 10214 may also be provided with a first guide structure 102143, and the first guide structure 102143 may be, but not limited to, a columnar structure, and the first guide structure 102143 may be inserted into the third track groove 1021641 of the first support plate 10216, and may slide along the third track groove 1021641. In this way, during the rotation of the first support arm 10214 around the base 101, the first support plate 10216 may be driven to rotate around the first shell fixing frame 10213 by the sliding of the first guide structure 102143 in the third track groove 1021641.
  • the fourth plate surface 102262 of the second support plate 10226 may be provided with a second guide member 102264, and the second guide member 102264 may be provided with a fourth track groove 1022641.
  • the second support arm 10224 may also be provided with a second guide structure 102243, and the second guide structure 102243 may be, but is not limited to, a columnar structure, and the second guide structure 102243 may be inserted into the fourth track groove 1022641 of the second support plate 10226, and may slide along the fourth track groove 1022641. In this way, during the rotation of the second support arm 10224 around the base 101, the second support plate 10226 may be driven to rotate around the second shell fixing frame 10223 by the sliding of the second guide structure 102243 in the fourth track groove 1022641.
  • the third track groove 1021641 and the fourth track groove 1022641 can be closed grooves, and the first guide structure 102143 and the second guide structure 102243 can be guide shafts. This can improve the reliability of the movement of the first guide structure 102143 and the second guide structure 102243 in the corresponding track grooves, thereby making the movement of the first support plate 10216 and the second support plate 10226 more stable.
  • the first shell fixing frame 10213 and the second shell fixing frame 10223 rotate towards each other, the first shell fixing frame 10213 drives the first support arm 10214 to rotate around the base 101, the second shell fixing frame 10223 drives the second support arm 10224 to rotate around the base 101, and the first guide structure 102143 of the first support arm 10214 slides along the third track groove 1021641 to drive the first support plate 10216 to rotate relative to the first shell fixing frame 10213, and drives the first support plate 10216 to rotate relative to the first shell fixing frame 10213.
  • the end of the plate 10216 close to the base 101 moves in a direction away from the base 101.
  • a screen-accommodating space 5 for accommodating the bendable part of the flexible display screen can be formed between the first support plate 10216, the base 101 and the second support plate 10226.
  • the first rotating assembly 1021 further includes a third support plate 10217, the third support plate 10217 is slidably connected to the first housing fixing frame 10213, and the third support plate 10217 is slidably connected to the first support plate 10216.
  • FIG. 19a is another cross-sectional view of the rotating shaft mechanism 1 provided in the embodiment of the present application when the electronic device is in a closed state, which can be used to show the matching relationship between the third support plate 10217 and the first housing fixing frame 10213.
  • the third support plate 10217 includes a first sliding portion 102171 and a first supporting portion 102172
  • the first housing fixing frame 10213 includes a fifth track groove 102135
  • the first sliding portion 102171 is inserted into the fifth track groove 102135, and can slide relative to the first housing fixing frame 10213 along the fifth track groove 102135.
  • the specific setting form of the fifth track groove 102135 is not limited, and it can be exemplarily a linear groove.
  • the first sliding part 102171 can slide in the fifth track groove 102135 along the third direction relative to the first shell fixing frame 10213, wherein the third direction is the direction shown in a in Figure 19a.
  • the first support plate 10216 includes a third slide groove 102165, and the first support portion 102172 can slide along the third slide groove 102165.
  • the specific arrangement of the third slide groove 102165 and the first support portion 102172 is not limited.
  • the third slide groove 102165 can be a linear groove.
  • a plurality of third slide grooves 102165 can be arranged in parallel.
  • the first support portion 102172 can be set as a comb-tooth structure, and each comb tooth of the first support portion 102172 is correspondingly inserted into a third slide groove 102165, and can slide in the third slide groove 102165 relative to the first support plate 10216 along the fourth direction, so as to realize the sliding of the first support portion 102172 in the third slide groove 102165 relative to the first support plate 10216 along the fourth direction, wherein the fourth direction is the direction shown in b in Figure 19a.
  • the angle between the third direction and the fourth direction is greater than 0°, so that the first shell fixing frame 10213 and the first support plate 10216 limit the movement of the third support plate 10217 in the direction toward the base 101, thereby preventing the third support plate 10217 from falling off.
  • Figure 19b is another cross-sectional view of the hinge mechanism 1 provided in an embodiment of the present application when the electronic device is in a closed state.
  • the third support plate 10217 can avoid the first swing arm 10211, so that the hinge mechanism 1 can form a screen-accommodating space that meets the bending requirements of the flexible display screen in the closed state.
  • the third support plate 10217 may also include a first abutment portion 102173, which may be located between the first sliding portion 102171 and the first support portion 102172.
  • the first abutment portion 102173 abuts against the first shell fixing frame 10213, so that the first shell fixing frame 10213 provides the first abutment portion 102173 with a supporting force in a direction away from the base 101, thereby enabling the first shell fixing frame 10213 to provide the third support plate 10217 with a supporting force in a direction away from the base 101, so as to prevent the third support plate 10217 from falling off, thereby improving the structural reliability of the first rotating assembly 1021, and further improving the structural reliability of the hinge mechanism 1.
  • the first support portion 102172 includes a fifth plate surface 1021721.
  • FIG20 is a schematic diagram of the structure of the hinge mechanism 1 shown in FIG19a when the electronic device is in an unfolded state.
  • the third support plate 10217 is located on the side of the first swing arm 10211 facing the flexible display screen, and the first plate surface 102161 and the fifth plate surface 1021721 are connected to form a support surface for supporting the flexible display screen, which is conducive to improving the integrity of the support surface of the hinge mechanism 1 for supporting the flexible display screen, thereby achieving a flat support for the flexible display screen.
  • the second rotating assembly 1022 further includes a fourth support plate 10227.
  • the fourth support plate 10227 is slidably connected to the second housing fixing frame 10223, and the fourth support plate 10227 is slidably connected to the second support plate 10226.
  • the fourth support plate 10227 includes a second sliding portion 102271 and a second supporting portion 102272
  • the second housing fixing frame 10223 includes a sixth track groove 102235
  • the first sliding portion 102171 is inserted into the sixth track groove 102235, and can slide relative to the second housing fixing frame 10223 along the sixth track groove 102235.
  • the specific setting form of the sixth track groove 102235 is not limited, and it can be exemplarily a linear groove, and the second sliding portion 102271 can slide relative to the second housing fixing frame 10223 in the sixth track groove 102235 along the fifth direction, wherein the fifth direction is the direction shown in FIG. 19a c.
  • the second support plate 10226 includes a fourth slide groove 102265, and the second support portion 102272 can slide along the fourth slide groove 102265.
  • the specific setting form of the fourth slide groove 102265 and the second support portion 102272 is not limited.
  • the fourth slide groove 102265 can be a linear groove.
  • the fourth slide groove 102265 can be a plurality of fourth slide grooves 102265 arranged in parallel, and the second support portion 102272 can be arranged in a comb-tooth-shaped structure, then each comb tooth of the second support portion 102272 is correspondingly inserted in a fourth slide groove 102265, and can slide in the fourth slide groove 102265 relative to the second support plate 10226 along a sixth direction, so as to realize the sliding of the second support portion 102272 in the fourth slide groove 102265 relative to the second support plate 10226 along the sixth direction, wherein the sixth direction is the direction shown in FIG. 19a-d.
  • the angle between the fifth direction and the sixth direction is greater than 0°, so that the second shell fixing frame 10223 and the second support plate 10226 limit the movement of the fourth support plate 10227 in the direction toward the base, thereby preventing the third support plate 10217 from falling off.
  • the fourth support plate 10227 when the electronic device is in a closed state, the fourth support plate 10227 may avoid the second swing arm 10221 , so that the hinge mechanism 1 can form a screen-accommodating space that meets the bending requirements of the flexible display screen in the closed state.
  • the fourth support plate 10227 may further include a second abutment portion 102273. Referring to Figures 19a and 19b, the second abutment portion 102273 may be located between the second sliding portion 102271 and the second support portion 102272.
  • the second abutment portion 102273 abuts against the second shell fixing frame 10223, so that the second shell fixing frame 10223 provides a supporting force for the second abutment portion 102273 in a direction away from the base 101, thereby enabling the second shell fixing frame 10223 to provide a supporting force for the fourth support plate 10227 in a direction away from the base 101, so as to prevent the fourth support plate 10227 from falling off, thereby improving the structural reliability of the second rotating assembly 1022, and then improving the structural reliability of the hinge mechanism 1.
  • the second support portion 102272 includes a sixth plate surface 1022721.
  • the fourth support plate 10227 may be located on the side of the second swing arm 10221 facing the flexible display screen, and the third plate surface 102261 and the sixth plate surface 1022721 are connected to form a support surface for supporting the flexible display screen, which is conducive to improving the integrity of the support surface of the hinge mechanism 1 for supporting the flexible display screen, thereby achieving flat support for the flexible display screen.
  • the hinge mechanism 1 provided in the above-mentioned embodiment of the present application can be used for example in the electronic device shown in FIG. 1 or FIG. 2.
  • the first shell fixing frame 10213 can be fixedly connected to the shell located on the same side of the base 101
  • the second shell fixing frame 10223 can be fixedly connected to another shell.
  • the first shell fixing frame 10213 can be used to be fixedly connected to the first shell 2 of the electronic device shown in FIG. 2
  • the second shell fixing frame 10223 can be used to be fixedly connected to the second shell 3 of the electronic device shown in FIG. Based on this, it can be understood that the process of the first shell fixing frame 10213 and the second shell fixing frame 10223 rotating in opposite or opposite directions is also the process of the first shell 2 and the second shell 3 rotating in opposite or opposite directions.
  • the flexible display screen 4 of the electronic device can be fixedly connected to the first shell 2 and the second shell 3, and the connection method can be but is not limited to bonding.
  • the flexible display screen 4 can be bonded to a partial area of the surface of the first shell 2 facing the flexible display screen 4, and the flexible display screen 4 can be bonded to a partial area of the surface of the second shell 3 facing the flexible display screen 4, so that when the electronic device is in the unfolded state, the hinge mechanism 1, the first shell 2 and the second shell 3 can jointly play a role in flattening the flexible display screen 4, thereby ensuring the integrity of the shape of the electronic device in the unfolded state.
  • the two shells rotate towards each other to drive the flexible display screen 4 to rotate, which can effectively prevent the flexible display screen 4 from being deformed to reduce the risk of damage to the flexible display screen 4.
  • the hinge mechanism 1, the first housing 2 and the second housing 3 can jointly play the role of flattening the flexible display screen 4.
  • the two housings of the electronic device can rotate in opposite directions and drive the flexible display screen 4 to bend.
  • the two housings of the electronic device can rotate in opposite directions and drive the flexible display screen 4 to unfold.

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Abstract

一种转轴机构（1），其包括基座（101）和转动模组（102），转动模组包括两个分设于基座的相对两侧的转动组件，每个转动组件包括摆臂、壳体固定架、径向旋臂和支撑臂，摆臂与基座转动连接，径向旋臂位于摆臂和壳体固定架之间，径向旋臂分别与摆臂和壳体固定架转动连接，且径向旋臂的转动轴线沿壳体固定架沿朝向或背离基座运动的方向延伸，支撑臂与基座转动连接，且其与壳体固定架滑动连接，支撑臂与摆臂绕基座转动的轴线平行不重合，且支撑臂绕基座转动带动径向旋臂旋转，以在电子设备处于闭合状态时，径向旋臂避让柔性显示屏（4）的可折叠部分。以及一种包括该转轴机构的电子设备。该转轴机构的尺寸较小，且在转轴机构折叠和展开的过程中可避免对柔性显示屏造成挤压或拉扯。

Description

一种转轴机构及电子设备
相关申请的交叉引用
本申请要求在2023年06月15日提交中国国家知识产权局、申请号为202310713284.8、申请名称为“一种转轴机构及电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及可折叠电子设备技术领域，尤其涉及一种转轴机构及电子设备。
背景技术
随着柔性显示屏技术的逐渐成熟，推动电子设备的显示方式发生了非常大的变化，可折叠柔性屏手机、可折叠柔性屏平板电脑，以及具有可折叠柔性屏的可穿戴电子设备等是未来智能电子设备的一大重要演进方向。
柔性显示屏是可折叠电子设备中的关键部件，其具有连续可折叠的特征。而转轴机构作为可折叠电子设备实现折叠功能的重要部件，在可折叠电子设备展开和闭合的过程中，转轴机构可带动柔性显示屏展平或者弯折。通常情况下，转轴机构在具体设计时，为了对柔性显示屏进行避让，以在电子设备折叠的过程中避免对柔性显示屏造成拉扯或者挤压，就需要对转轴机构中的转动组件的一些部件进行减薄设计，其导致这些部件的结构强度较差，从而使整个转轴机构的结构可靠性较差。基于此，如何在避免对柔性显示屏造成拉扯或者挤压的同时，还可以使转轴机构的结构较为可靠，已成为了本领域技术人员亟待解决的一大难题。
发明内容
本申请提供了一种转轴机构及电子设备，以实现转轴机构的小型化设计，并提升转轴机构转动过程中柔性显示屏的结构可靠性，从而提升电子设备的结构可靠性。
第一方面，本申请提供了一种转轴机构，该转轴机构可用于可折叠的电子设备，且转轴机构与电子设备的柔性显示屏的可折叠部分相对设置，电子设备通过转轴机构展开或闭合。在具体设置转轴机构时，其可以包括基座和转动模组。其中，转动模组包括第一转动组件和第二转动组件，第一转动组件和第二转动组件分设于基座的相对的两侧。第一转动组件可以包括第一摆臂、第一壳体固定架、第一径向旋臂和第一支撑臂。第一摆臂与基座转动连接。第一支撑臂与基座转动连接，第一支撑臂与第一壳体固定架沿第一方向滑动连接，第一支撑臂绕基座转动的轴线与第一摆臂绕基座转动的轴线均平行于基座的长度方向且相互不重合，第一方向垂直于基座的长度方向。另外，第一径向旋臂位于第一摆臂和第一壳体固定架之间，第一径向旋臂包括第一连接部、第二连接部和第一避让口，第一避让口位于第一连接部和第二连接部之间，第一径向旋臂的背离第一避让口的一面为第一连接面，第一连接部与第一摆臂转动连接，第二连接部与第一壳体固定架转动连接，第一径向旋臂的转动轴线沿第一方向延伸。
第二转动组件在具体设置时，其可以包括第二摆臂、第二壳体固定架、第二径向旋臂和第二支撑臂。第二摆臂与基座转动连接，第二支撑臂与基座转动连接，第二支撑臂与第二壳体固定架沿第二方向滑动连接，第二支撑臂绕基座转动的轴线与第二摆臂绕基座转动的轴线均平行于基座的长度方向且相互不重合，第二方向垂直于基座的长度方向。第二径向旋臂位于第二摆臂和第二壳体固定架之间，第二径向旋臂包括第三连接部、第四连接部和第二避让口，第二避让口位于第三连接部和第四连接部之间，第二径向旋臂的背离第二避让口的一面为第二连接面，第三连接部与第二摆臂转动连接，第四连接部与第二壳体固定架转动连接，第二径向旋臂的转动轴线沿第二方向延伸。
另外，在本申请提供的转轴机构中，基座包括背离柔性显示屏的外观壳，外观壳包括相对的第一端和第二端，第一端朝向第一壳体固定架设置，第二端朝向第二壳体固定架设置。则在电子设备处于展开状态时，外观壳的第一端插设于第一避让口，外观壳的第二端插设于第二避让口。在电子设备由展开状态切换至闭合状态的过程中，第一壳体固定架相对第一支撑臂沿远离基座的方向滑动，第二壳体固定架相对第二支撑臂沿远离基座的方向滑动，第一支撑臂绕基座转动带动第一径向旋臂绕第一方向旋转，第二支撑臂绕基座转动带动第二径向旋臂绕第二方向旋转，以使电子设备处于闭合状态时，第一径向旋臂 的第一连接面不朝向柔性显示屏，第二径向旋臂的第二连接面不朝向柔性显示屏。
现有的转轴机构中，由于第一摆臂(第二摆臂)在与基座转动连接的同时，还直接与第一壳体固定架(第二壳体固定架)相连接，而为了使应用有该转轴机构的电子设备能够展开到展平状态，就需要在第一摆臂(第二摆臂)上开设避让口，以实现第一摆臂(第二摆臂)对外观壳的避让。但是，由于第一摆臂(第二摆臂)在闭合状态时还需要避免对柔性显示屏造成干涉，所以现有的转轴机构的第一摆臂(第二摆臂)的与避让口相背设置的避让部的厚度只能设计的较薄，以对柔性显示屏进行避让，这就限制了转轴机构的整体厚度。也就是说，如果希望进一步减薄转轴机构的厚度，就需要进一步削弱上述避让部的厚度，其会导致第一摆臂(第二摆臂)该部分的结构强度过低，从而使第一摆臂(第二摆臂)的结构可靠性难以保证。
而本申请提供的转轴机构，在电子设备处于展开状态时，第一径向旋臂(第二径向旋臂)的第一避让口(第二避让口)可对外观壳进行避让，而在电子设备由展开状态到闭合状态转动的过程中，第一壳体固定架(第二壳体固定架)绕基座转动可带动第一径向旋臂(第二径向旋臂)、第一摆臂(第二摆臂)和第一支撑臂(第二支撑臂)一并绕基座转动，第一支撑臂(第二支撑臂)绕基座转动可带动第一径向旋臂(第二径向旋臂)相对第一摆臂(第二摆臂)和第一壳体固定架(第二壳体固定架)转动，从而使第一径向旋臂(第二径向旋臂)的第一连接面(第二连接面)向背离柔性显示屏的一侧旋转。这样的结构设计，使得第一径向旋臂(第二径向旋臂)的用于设置第一连接面(第二连接面)的部分的厚度可以根据强度的需要进行灵活设置甚至增厚设置，又因为这部分会在折叠过程中向背离柔性显示屏的方向旋转，而不会在闭合状态时干涉到柔性显示屏。因此，本申请提供的转轴机构，可以在实现第一径向旋臂(第二径向旋臂)对外观壳以及柔性显示屏避让的同时，还可以保证整个第一径向旋臂(第二径向旋臂)的结构强度，从而可有利于转轴机构的结构可靠性的提升。
又由于在本申请提供的转轴机构中，第一壳体固定架(第二壳体固定架)绕基座转动带动第一摆臂(第二摆臂)绕基座的转动为一级运动传递，其传动精度较高。另外，由于第一摆臂(第二摆臂)与第一壳体固定架(第二壳体固定架)只通过第一径向旋臂(第二径向旋臂)连接，其结构简单，占用的空间较小，从而可有利于实现转轴机构的小型化及轻薄化设计。
另外，本申请提供的转轴机构在电子设备由展开状态到闭合状态的过程中，第一壳体固定架和第二壳体固定架相向运动，第一壳体固定架绕基座沿逆时针方向转动可带动第一摆臂、第一径向旋臂和第一支撑臂绕基座沿逆时针方向转动；第二壳体固定架绕基座沿顺时针方向转动可带动第二摆臂、第二径向旋臂和第二支撑臂同步沿顺时针方向转动。而在电子设备由闭合状态到展开状态的过程中，第一壳体固定架和第二壳体固定架相背运动，第一壳体固定架绕基座沿顺时针方向转动可带动第一摆臂、第一径向旋臂和第一支撑臂绕基座沿顺时针方向转动；第二壳体固定架绕基座沿逆时针方向转动可带动第二摆臂、第二径向旋臂和第二支撑臂同步沿逆时针方向转动。从而可实现转轴机构的折叠和展开功能。
又由于第一支撑臂(第二支撑臂)绕基座转动的轴线与第一摆臂(第二摆臂)绕基座转动的轴线平行不重合，则第一摆臂(第二摆臂)和第一支撑臂(第二支撑臂)相对基座转动的过程中存在相位差。这样，在电子设备折叠和展开的过程中，第一支撑臂(第二支撑臂)与第一壳体固定架(第二壳体固定架)可发生相对滑动，其可使第一壳体固定架和第二壳体固定架可沿朝向或者背离基座的方向运动，从而在第一转动组件和第二转动组件相向转动的过程中，使第一壳体固定架相对第一支撑臂向远离第一支撑臂的转动轴心(基座)的方向滑动，第二壳体固定架相对第二支撑臂向远离第二支撑臂的转动轴心(基座)的方向滑动，从而使第一转动组件和第二转动组件相对基座的延伸长度增加。另外，在第一转动组件和第二转动组件相背转动的过程中，会使第一壳体固定架相对第一支撑臂向靠近第一支撑臂的转动轴心的方向滑动，第二壳体固定架相对第二支撑臂向靠近第二支撑臂的转动轴心的方向滑动，从而使第一转动组件和第二转动组件相对基座的延伸长度缩减，从而缩减转轴机构的长度。这样在转轴机构处于闭合状态、展开状态以及折叠过程中，均可使第一转动组件和第二转动组件相对基座的延伸长度能够适应柔性显示屏的状态，避免对柔性屏造成拉扯或者挤压。
另外，也由于第一摆臂(第二摆臂)和第一支撑臂(第二支撑臂)相对基座转动的过程中存在上述相位差，第一摆臂(第二摆臂)、第一径向旋臂(第二径向旋臂)和第一壳体固定架(第二壳体固定架)在沿第一方向(第二方向)的相对位置固定，则在第一支撑臂(第二支撑臂)相对第一壳体固定架(第二壳体固定架)滑动的过程中，第一支撑臂(第二支撑臂)与第一径向旋臂(第二径向旋臂)之间也有相对位移，从而可实现第一支撑臂(第二支撑臂)带动第一径向旋臂(第二径向旋臂)绕其转动轴线的 转动。
在本申请一个可能的实现方式中，第一径向旋臂还包括第一避让部，第一避让部位于第一连接部和第二连接部之间，且第一连接部和第二连接部通过第一避让部连接；第一避让部与第一避让口相背设置，第一连接面为第一避让部的背离第一避让口的表面。由于在电子设备由展开状态到闭合状态的过程中，第一径向旋臂可绕其轴线旋转，从而可在电子设备处于闭合状态时，使第一连接面不朝向柔性显示屏，这样的设计可使第一避让部的厚度根据强度的需要进行灵活设置甚至增厚设置，其有利于提升第一径向旋臂的结构可靠性，从而提升转轴机构的结构可靠性。
相类似的，第二径向旋臂还包括第二避让部，第二避让部位于第三连接部和第四连接部之间，且第三连接部和第四连接部通过第二避让部连接；第二避让部与第二避让口相背设置，第二连接面为第二避让部的背离第二避让口的表面。由于在电子设备由展开状态到闭合状态的过程中，第二径向旋臂可绕其轴线旋转，从而可在电子设备处于闭合状态时，使第二连接面不朝向柔性显示屏，这样的设计可使第二避让部的厚度根据强度的需要进行灵活设置甚至增厚设置，其有利于提升第二径向旋臂的结构可靠性，从而提升转轴机构的结构可靠性。
在本申请一个可能的实现方式中，具体将第一径向旋臂与第一摆臂和第一壳体固定架转动连接时，可使第一连接部通过第一转轴与第一摆臂转动连接，第二连接部通过第二转轴与第一壳体固定架转动连接，第一转轴的轴线沿第一方向延伸，第二转轴的轴线沿第一方向延伸。从而实现第一径向旋臂与第一摆臂和第一壳体固定架的转动连接，并使第一径向旋臂的转动轴线沿第一方向延伸。
在本申请一个可能的实现方式中，第二连接部可开设有第一卡槽，第一壳体固定架设置有第一卡接部，第一卡接部插设于第一卡槽，第二转轴穿设于第一卡槽的槽壁和第一卡接部。这样可使第一转动组件的结构较为紧凑，其有利于第一转动组件尺寸的减小，从而有利于实现转轴机构的小型化设计。
相类似的，第二径向旋臂的第三连接部通过第三转轴与第二摆臂转动连接，第四连接部通过第四转轴与第二壳体固定架转动连接，第三转轴的轴线沿第二方向延伸，第四转轴的轴线沿第二方向延伸。从而实现第二径向旋臂与第二摆臂和第二壳体固定架的转动连接，并使第二径向旋臂的转动轴线沿第一方向延伸。
另外，第四连接部开设有第二卡槽，第二壳体固定架设置有第二卡接部，第二卡接部插设于第二卡槽，第四转轴穿设于第二卡槽的槽壁和第二卡接部。这样可使第二转动组件的结构较为紧凑，其有利于第二转动组件尺寸的减小，从而有利于实现转轴机构的小型化设计。
在本申请一个可能的实现方式中，第一径向旋臂还包括第一轨迹槽，第一支撑臂包括第一导向部，第一导向部沿第一轨迹槽滑动可带动第一径向旋臂相对第一摆臂转动，以在电子设备处于展开状态时，使第一端插设于第一避让口。在本申请中，通过第一支撑臂的第一导向部沿第一径向旋臂的第一轨迹槽滑动来带动第一径向旋臂相对第一摆臂转动，可以在实现第一径向旋臂的转动的同时使第一转动组件的结构较为简单。
相类似的，第二径向旋臂还包括第二轨迹槽，第二支撑臂包括第二导向部，第二导向部沿第二轨迹槽滑动带动第二径向旋臂相对第二摆臂转动，以在电子设备处于展开状态时，使第二端插设于第二避让口。在本申请中，通过第二支撑臂的第二导向部沿第二径向旋臂的第二轨迹槽滑动来带动第二径向旋臂相对第二摆臂转动，可以在实现第二径向旋臂的转动的同时使第二转动组件的结构较为简单。
在本申请中，不对第一轨迹槽的具体设置形式进行限定，其示例性的可为螺旋槽，以在第一支撑臂相对第一壳体固定架沿第一方向滑动的同时，可带动第一径向旋臂绕沿第一方向延伸的轴线相对第一壳体固定架和第一摆臂转动。
另外，第二轨迹槽也可设置为螺旋槽，以在第二支撑臂相对第二壳体固定架沿第二方向滑动的同时，可带动第二径向旋臂绕沿第二方向延伸的轴线相对第二壳体固定架和第二摆臂转动。
在本申请一个可能的实现方式中，第一径向旋臂(第二径向旋臂)的第一连接部(第三连接部)连接的部分还设置有第一避让面(第二避让面)，则在电子设备处于闭合状态时，该第一避让面(第二避让面)可对柔性显示屏的可折叠部分进行避让，从而可使转轴机构在该闭合状态时形成的容屏空间与柔性显示屏的可折叠部分的形态相适应，其可避免对柔性显示屏造成挤压，从而有利于提升柔性显示屏的结构可靠性，进而提升电子设备的结构可靠性。
也就是说，通过本申请的转轴机构这样的设计，可以让第一径向旋臂(第二径向旋臂)在折叠的过程中进行旋转，从而让避让面与连接面设置在第一径向旋臂(第二径向旋臂)的不同面上，避免过度减 薄避让部而导致的强度不够，或者避免造成避让部对柔性显示屏的干涉。
在本申请一个可能的实现方式中，第一导向部沿第一轨迹槽滑动可带动第一径向旋臂相对第一摆臂转动，以在电子设备处于闭合状态时，使第一避让面避让柔性显示屏的可折叠部分，从而可避免第一径向旋臂对柔性显示屏的可折叠部分造成挤压，其有利于提升柔性显示屏的结构可靠性。
另外，第二导向部沿第二轨迹槽滑动带动第二径向旋臂相对第二摆臂转动，以在电子设备处于闭合状态时，使第二避让面避让柔性显示屏的可折叠部分，从而可避免第二径向旋臂对柔性显示屏的可折叠部分造成挤压，其有利于提升柔性显示屏的结构可靠性。
在本申请一个可能的实现方式中，第一避让面为弧形凹面，第二避让面为弧形凹面。这样的设计，可以更好的实现对柔性显示屏的可折叠部分的避让。另外，还可以根据柔性显示屏的可折叠部分折叠时的外部形态对第一避让面和第二避让面的形态进行拟合，从而在电子设备处于闭合状态时，使转轴机构形成的容屏空间的形态更好的与柔性显示屏的可折叠部分相适应，其有利于避免对柔性显示屏的可折叠部分造成挤压，从而可提升柔性显示屏的结构可靠性。
在本申请一个可能的实现方式中，第一摆臂与基座可通过虚拟轴转动连接，具体的，基座可设置有第一弧形槽，第一摆臂包括第一弧形转动块，第一弧形转动块容置于第一弧形槽，且第一弧形转动块可沿第一弧形槽的槽面滑动，以实现第一摆臂相对基座的转动。第一摆臂与基座通过虚拟轴转动连接，可使第一摆臂占用的基座的空间较小，其有利于实现转轴机构的小型化设计。
另外，基座还可设置有第二弧形槽，第二摆臂包括第二弧形转动块，则第二转动块可容置于第二弧形槽，且第二弧形转动块可沿第二弧形槽的槽面滑动，以实现第二摆臂相对基座的转动。则在本申请中，第二摆臂与基座也可通过虚拟轴转动连接，以使第二摆臂在基座上占用的空间较小，以有利于实现转轴机构的小型化设计。
在本申请一个可能的实现方式中，在具体将第一支撑臂与第一壳体固定架滑动连接时，第一壳体固定架可设置有第一滑槽，第一支撑臂容置于第一滑槽，且第一支撑臂可在第一滑槽内沿第一方向滑动。相类似的，第二壳体固定架设置有第二滑槽，第二支撑臂容置于第二滑槽，且第二支撑臂可在第二滑槽内沿第二方向滑动。
在本申请一个可能的实现方式中，第一壳体固定架还可以包括第一安装槽，第一安装槽的槽壁开设有第一缺口，第一安装槽与第一滑槽通过第一缺口连通。转轴机构还包括第一阻尼模块，第一阻尼模块包括第一弹性件和第一阻尼支架，第一阻尼支架包括第一凸起，第一阻尼支架安装于第一安装槽，且在第一弹性件的弹性力作用下，第一凸起可沿第一缺口滑动并伸入至第一滑槽。第一支撑臂的朝向第一安装槽的表面还设置有第二凸起，当第一凸起伸入至第一滑槽时，沿第一方向，第一凸起与第二凸起相对的侧面相抵接，则在第一凸起与第二凸起之间产生阻尼力，以使第一凸起阻挡第一支撑臂继续沿第一滑槽滑动，从而可使第一壳体固定架保持在对应的转动位。另外，在第一转动组件相对基座转动的过程中，由于第一支撑臂与第一阻尼模块之间阻尼力的存在，其可以使用户开合电子设备的过程中有较为明显的顿挫手感，以提升用户使用体验。
另外，第二壳体固定架还可以包括第二安装槽，第二安装槽的槽壁开设有第二缺口，第二安装槽与第二滑槽通过第二缺口连通。转轴机构还包括第二阻尼模块，第二阻尼模块包括第二弹性件和第二阻尼支架，第二阻尼支架包括第三凸起，第二阻尼支架安装于第二安装槽，且在第二弹性件的弹性力作用下，第三凸起可沿第二缺口滑动并伸入至第二滑槽。第二支撑臂的朝向第二安装槽的表面还设置有第四凸起，当第三凸起伸入至第二滑槽时，沿第二方向，第三凸起与第四凸起相对的侧面相抵接。则在第三凸起与第二四起之间产生阻尼力，以使第三凸起阻挡第二支撑臂继续沿第二滑槽滑动，从而可使第二壳体固定架保持在对应的转动位。另外，在第二转动组件相对基座转动的过程中，由于第二支撑臂与第二阻尼模块之间阻尼力的存在，其可以使用户开合电子设备的过程中有较为明显的顿挫手感，以提升用户使用体验。
在本申请一个可能的实现方式中，第一支撑臂包括两个相对设置的第一连接臂，两个第一连接臂与第一壳体固定架滑动连接，第一阻尼模块位于两个第一连接臂之间，从而可使第一转动组件的结构较为紧凑，其有利于第一转动组件尺寸的减小，以有利于实现转轴机构的小型化设计。
相类似的，第二支撑臂可包括两个相对设置的第二连接臂，该两个第二连接臂与第二壳体固定架滑动连接，第二阻尼模块位于两个第二连接臂之间，以使第二转动组件的结构较为紧凑，从而有利于第二转动组件尺寸的减小，以有利于实现转轴机构的小型化设计。
在本申请一个可能的实现方式中，第一转动组件还包括第一支撑板，第一支撑板包括相背设置的第一板面和第二板面，第一板面用于支撑柔性显示屏，第二板面设置有第三轨迹槽，第一支撑臂设置有第一导向结构，第一导向结构插设于第三轨迹槽，且第一导向结构可沿第三轨迹槽滑动。另外，第二转动组件还包括第二支撑板，第二支撑板包括相背设置的第三板面和第四板面，第三板面用于支撑柔性显示屏，第四板面设置有第四轨迹槽，第二支撑臂设置有第二导向结构，第二导向结构插设于第四轨迹槽，且第二导向结构可沿第四轨迹槽滑动。第一壳体固定架和所述第二壳体固定架相向转动时，第一壳体固定架带动第一支撑臂绕基座转动，第一导向结构沿第三轨迹槽滑动，以带动第一支撑板相对第一壳体固定架转动，且带动第一支撑板的靠近基座的一端沿远离基座的方向运动。第二壳体固定架带动第二支撑臂和第二摆臂绕基座转动，第二导向结构沿第三轨迹槽滑动，以带动第二支撑板相对第二壳体固定架转动，且带动第二支撑板的靠近基座的一端沿远离基座的方向运动，从而可在第一支撑板、基座和第二支撑板之间形成用于容纳柔性显示屏的可弯折部分的容屏空间。
另外，第一壳体固定架还包括第五轨迹槽，第一转动组件还包括第三支撑板，第三支撑板包括第一滑动部和第一支撑臂，第一滑动部插设于第五轨迹槽，第一壳体固定架绕基座转动带动第三支撑板绕基座转动，且第一滑动部沿第五轨迹槽滑动。又第一支撑板包括第三滑槽，第一支撑部可沿第三滑槽滑动。第一支撑部包括第五板面。在电子设备处于闭合状态时，第三支撑板避让第一摆臂。在电子设备处于展开状态时，第三支撑板位于第一摆臂的朝向柔性显示屏的一侧，且第一板面和第五板面连接形成用于支撑柔性显示屏的支撑面，其有利于提升转轴机构的用于支撑柔性显示屏的支撑面的完整性，从而实现对柔性显示屏的平整支撑。
相类似的，第二壳体固定架还包括第六轨迹槽，第二转动组件还包括第四支撑板，第四支撑板包括第二滑动部和第二支撑部，第二滑动部插设于第六轨迹槽，第二壳体固定架绕基座转动带动第四支撑板绕基座转动，且第二滑动部沿第六轨迹槽滑动。又第二支撑板包括第四滑槽，第二支撑部可沿第四滑槽滑动，第二支撑部包括用于支撑柔性显示屏的第六板面。在电子设备处于闭合状态时，第四支撑板避让第二摆臂。在电子设备处于展开状态时，第四支撑板位于第二摆臂的朝向柔性显示屏的一侧，且第三板面和第六板面连接形成用于支撑柔性显示屏的支撑面，其有利于提升转轴机构的用于支撑柔性显示屏的支撑面的完整性，从而实现对柔性显示屏的平整支撑。
在本申请中，不对第五轨迹槽和第三滑槽的具体设置形式进行限定，示例性的，第五轨迹槽为直线槽，第三滑槽为直线槽。则第一滑动部可在第五轨迹槽内相对第一壳体固定架沿第三方向滑动，第一支撑部可在第三滑槽内相对第一支撑板沿第四方向的滑动。在电子设备处于闭合状态时，第三方向和第四方向的夹角大于0°，以使第一壳体固定架和第一支撑板对第三支撑板沿朝向基座的方向的运动进行限位，从而可避免第三支撑板的脱落。
另外，第六轨迹槽可为直线槽，第四滑槽也可为直线槽。第二滑动部可在第六轨迹槽内相对第二壳体固定架沿第五方向滑动，第二支撑部可在第四滑槽内相对第二支撑板沿第六方向滑动，在电子设备处于闭合状态时，第五方向与第六方向之间的夹角大于0°，以使第二壳体固定架和第二支撑板对第四支撑板沿朝向基座的方向的运动进行限位，从而可避免第四支撑板的脱落。
在本申请一个可能的实现方式中，第三支撑板还可以包括第一抵接部，在电子设备处于闭合状态时，第一抵接部与第一壳体固定架相抵接，第一壳体固定架为第一抵接部提供沿背离基座方向的支撑力。从而可在该闭合状态下避免第三支撑臂的脱落，以提升第一转动组件的结构可靠性，进而提升转轴机构的结构可靠性。
相类似的，第四支撑板还包括第二抵接部，在电子设备处于闭合状态时，第二抵接部与第二壳体固定架相抵接，第二壳体固定架为第二抵接部提供沿背离基座方向的支撑力。从而可在该闭合状态下避免第四支撑臂的脱落，以提升第二转动组件的结构可靠性，进而提升转轴机构的结构可靠性。
在本申请一个可能的实现方式中，基座还可以包括承载面，该承载面可用于支撑柔性显示屏，且在电子设备处于闭合状态时，承载面、第一支撑面和第三支撑面可形成用于支撑柔性显示屏的支撑面，以提升转轴机构的用于支撑柔性显示屏的支撑面的完整性，从而实现对柔性显示屏的平整支撑。
第二方面，本申请还提供一种电子设备，该电子设备包括第一壳体、第二壳体以及第一方面的转轴机构。其中，第一壳体和第二壳体分设于转轴机构的相对的两侧，第一壳体固定架与第一壳体固定连接，第二壳体固定架与第二壳体固定连接。柔性显示屏连续覆盖于第一壳体、第二壳体和转轴机构，且柔性显示屏与第一壳体和第二壳体固定连接。该电子设备在展开状态时，转轴机构、第一壳体和第二壳体共 同起到对柔性显示屏的平整支撑的作用，从而可保证电子设备在该展开状态下的形态完整。在电子设备由展开状态到闭合状态的过程中，两个壳体相向转动带动柔性显示屏转动，可有效的避免柔性显示屏发生形变，以降低柔性显示屏损坏的风险。
附图说明
图1为本申请实施例提供的电子设备处于闭合状态的一种结构示意图；
图2为本申请实施例提供的电子设备处于展开状态的一种结构示意图；
图3为本申请实施例提供的转轴机构的结构示意图；
图4为本申请实施例提供的转轴机构的爆炸图；
图5为本申请实施例提供的第一摆臂的一种结构示意图；
图6为本申请实施例提供的基座的一种结构示意图；
图7为本申请实施例提供的第一壳体固定架的一种结构示意图；
图8为本申请实施例提供的第一径向旋臂在电子设备处于展开状态时的结构示意图；
图9为本申请实施例提供的转轴机构在电子设备处于展开状态时的俯视图；
图10为图9所示转轴机构的A-A处的剖视图；
图11为图10中所示的转轴机构在电子设备处于中间状态的结构示意图；
图12为图10中所示的转轴机构在电子设备处于闭合状态的结构示意图；
图13为图12中所示的转轴机构的第一径向旋臂的结构示意图；
图14为本申请实施例提供的第一径向旋臂和第一支撑臂的一种配合关系示意图；
图15a为本申请实施例提供的转轴机构的一种局部结构示意图；
图15b为本申请实施例提供的转轴机构的另一种局部结构示意图；
图15c为本申请实施例提供的转轴机构的另一种局部结构示意图；
图16为本申请实施例提供的第一阻尼模块的一种结构示意图；
图17为本申请实施例提供的转轴机构在电子设备处于闭合状态时的另一种剖面图；
图18为本申请实施例提供的转轴机构在电子设备处于闭合状态时的另一种剖面图；
图19a为本申请实施例提供的转轴机构在电子设备处于闭合状态时的另一种剖面图；
图19b为本申请实施例提供的转轴机构在电子设备处于闭合状态时的另一种剖面图；
图20为图19a中所示的转轴机构在电子设备处于展开状态时的结构示意图。
附图标记：
1-转轴机构；101-基座；1011-第一弧形槽；1012-第二弧形槽；1013-外观壳；
10131-第一端；10132-第二端；10133-外观面；1014-承载面；
102-转动模组；
1021-第一转动组件；10211-第一摆臂；102111-第一弧形转动块；102112-第一安装孔；
102113-第一转轴；10212-第一径向旋臂；102121-第一连接部；102122-第二连接部；
1021221-第一卡槽；102123-第一避让口；102124-第一避让面；102125-第一轨迹槽；
102126-第一避让部；1021261-第一连接面；
10213-第一壳体固定架；102131-第一卡接部；1021311-第二转轴；102132-第一滑槽；
102133-第一安装槽；1021331-第一缺口；1021332-第一限位柱；102134-第一转动槽；
102135-第五轨迹槽；10214-第一支撑臂；
102141-第一导向部；102142-第一连接臂；1021421-第二凸起；102143-第一导向结构；
10215-第一阻尼模块；102151-第一弹性件；102152-第一阻尼支架；1021521-第一凸起；
1021522-第一限位部；
10216-第一支撑板；102161-第一板面；102162-第二板面；102163-第一转动部；
102164-第一导向件；1021641-第三轨迹槽；102165-第三滑槽；
10217-第三支撑板；102171-第一滑动部；102172-第一支撑部；1021721-第五板面；
102173-第一抵接部；
1022-第二转动组件；10221-第二摆臂；102211-第二弧形转动块；102212-第三安装孔；
102213-第三转轴；10222-第二径向旋臂；102221-第三连接部；102222-第四连接部；
1022221-第二卡槽；102223-第二避让口；102224-第二避让面；102225-第二轨迹槽；
102226-第二避让部；1022261-第二连接面；
10223-第二壳体固定架；102231-第二卡接部；1022311-第四转轴；102232-第二滑槽；
102233-第二安装槽；1022331-第二缺口；1022332-第二限位柱；102234-第二转动槽；
102235-第六轨迹槽；10224-第二支撑臂；102241-第二导向部；102242-第二连接臂；
1022421-第四凸起；102243-第二导向结构；
10225-第二阻尼模块；102251-第二弹性件；102252-第二阻尼支架；1022521-第三凸起；
1022522-第二限位部；
10226-第二支撑板；102261-第三板面；102262-第四板面；102263-第二转动部；
102264-第二导向件；1022641-第四轨迹槽；102265-第四滑槽；
10227-第四支撑板；102271-第二滑动部；102272-第二支撑部；1022721-第六板面；
102273-第二抵接部；
2-第一壳体；3-第二壳体；4-柔性显示屏；5-容屏空间。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述。本申请以下实施例中所使用的术语只是为了描述特定实施例的目的，而并非旨在作为对本申请的限制。如在本申请的说明书和所附权利要求书中所使用的那样，单数表达形式“一个”、“一种”、“所述”、“上述”、“该”和“这一”旨在也包括例如“一个或多个”这种表达形式，除非其上下文中明确地有相反指示。
在本说明书中描述的参考“一个实施例”或“一些实施例”等意味着在本申请的一个或多个实施例中包括结合该实施例描述的特定特征、结构或特点。由此，在本说明书中的不同之处出现的语句“在一个实施例中”、“在一些实施例中”、“在其他一些实施例中”、“在另外一些实施例中”等不是必然都参考相同的实施例，而是意味着“一个或多个但不是所有的实施例”，除非是以其他方式另外特别强调。术语“包括”、“包含”、“具有”及它们的变形都意味着“包括但不限于”，除非是以其他方式另外特别强调。
为了方便理解本申请实施例提供的转轴机构及电子设备，下面首先说明一下其应用场景。其中，转轴机构可以但不限于应用于手机、掌上电脑(personal digital assistant，PDA)、笔记本电脑或平板电脑等可折叠的电子设备。在将本申请实施例提供的转轴机构应用于电子设备时，可参照图1，图1为本申请一实施例提供的电子设备的一种结构示意图。在图1所示的实施例中，电子设备处于闭合状态。该电子设备除了包括转轴机构1外，还可以包括两个壳体及柔性显示屏(图1中未示出)。为了便于说明，在本申请中，可将电子设备的两个壳体分别命名为第一壳体2和第二壳体3。其中，第一壳体2和第二壳体3位于转轴机构1的两侧，且可绕转轴机构1转动。本申请提供的电子设备可为内折式电子设备，该电子设备在使用时，可根据不同的使用场景进行闭合及展开。
参照图2，图2为电子设备处于展开状态下的一种结构示意图。由图2可以看出，在该展开状态下，第一壳体2和第二壳体3仍位于转轴机构1的两侧，且第一壳体2和第二壳体3可对柔性显示屏4起到支撑的作用，以使柔性显示屏4处于一平整的状态。
可以理解的是，电子设备在由图2所示的展开状态到图1所示的闭合状态的过程，或者由图1所示的闭合状态到图2所示的展开状态的过程即为第一壳体2以及第二壳体3绕转轴机构1转动的过程，且在上述过程中第一壳体2和第二壳体3可带动柔性显示屏4随之折叠或者展开。转轴机构1作为可折叠的电子设备中的一个关键性的功能部件，其可对应柔性显示屏4的可折叠部分设置，故转轴机构1在电子设备处于图2所示的展开状态下对于柔性显示屏4的该可折叠部分的支撑，以及在电子设备处于图1所示的闭合状态下对于柔性显示屏4的该可折叠部分的容纳均起着重要的作用。若在电子设备处于闭合状态时，第一壳体2、第二壳体3和转轴机构1形成的空间不能满足柔性显示屏4的折叠要求；或者，在电子设备处于展开状态时，第一壳体2、第二壳体3和转轴机构1提供的支撑面的延伸长度与柔性显示屏4的展开长度不符，都可能会对柔性显示屏4造成挤压或拉扯，其在电子设备进行多次的折叠操作后，易造成柔性显示屏4的损坏。
另外，目前的一些转轴机构1在具体设计时，为了对柔性显示屏4进行避让，以在电子设备折叠的过程中避免对柔性显示屏4造成拉扯或者挤压，转轴机构1的转动组件的一些部件会进行减薄设计，这就导致这些部件的结构强度较差，从而使整个转轴机构1的结构可靠性较差。
本申请提供的转轴机构1旨在解决上述问题，以在使转轴机构1的部件满足强度要求的同时，还可在电子设备的第一壳体2和第二壳体3绕转轴机构1转动的过程中，使转轴机构1的部件能够始终对柔性显示屏4的可折叠部分进行避让，且使第一壳体2、第二壳体3与转轴机构1在电子设备处于闭合状态时形成的容屏空间满足柔性显示屏4的折叠要求，并可使第一壳体2、第二壳体3与转轴机构1在展开状态形成的支撑面的延伸长度能够与柔性显示屏4的展开长度相适应，从而可避免柔性显示屏4发生形变，减小柔性显示屏4受到的挤压或者拉扯应力，以延长柔性显示屏4的使用寿命，提高电子设备的可靠性。为方便理解本申请实施例提供的转轴机构1，下面结合附图对其具体结构进行详细的说明。
首先，可参照图3，图3为本申请实施例提供的转轴机构1的结构示意图。在本申请中，转轴机构1可以包括基座101和转动模组102。本申请中不对转轴机构1中的转动模组102的数量进行限定，转轴机构1可以只包括一个转动模组102，也可以包括多个转动模组102。当转轴机构1包括多个转动模组102时，该多个转动模组102可沿转轴机构1的轴向间隔排列。其中，在本申请中，转轴机构1的轴向为图2中所示的第一壳体2和第二壳体3绕转轴机构1转动的轴线的延伸方向。可以理解的是，第一壳体2和第二壳体3通过多个转动模组102转动连接，可有效的提高电子设备的第一壳体2和第二壳体3相对转轴机构1转动的稳定性。
在本申请中，转动模组102包括第一转动组件1021和第二转动组件1022。其中，第一转动组件1021和第二转动组件1022位于基座101的相对的两侧，且第一转动组件1021和第二转动组件1022与基座101转动连接。在本申请中，应用有该转轴机构1的电子设备由展开状态到闭合状态的过程，即为第一转动组件1021和第二转动组件1022沿相向的方向绕基座101转动的过程；而电子设备由闭合状态到展开状态的过程，即为第一转动组件1021和第二转动组件1022沿相背的方向绕基座101转动的过程。
为了便于对转动模组102的结构进行了解，参照图4，图4为本申请实施例提供的转轴机构1的爆炸图。其中，第一转动组件1021可以包括第一摆臂10211，第一摆臂10211与基座101转动连接。其中，第一摆臂10211与基座101可通过虚拟轴的方式实现转动连接，这样可有利于减小第一摆臂10211在基座101上占用的空间，从而有利于减小转动模组102的体积，以便于实现转轴机构1的小型化设计。
值得一提的是，在本申请中，虚拟轴是指一个圆弧形结构的轴心，两个转动连接的部件可相对于该虚拟轴转动，且随着两个转动连接的部件的相对转动，虚拟轴的位置固定。示例性的，参照图5，图5为本申请实施例提供的第一摆臂10211的一种结构示意图。可一并参照图4和图5，该第一摆臂10211的朝向基座101的一端可以设置有第一弧形转动块102111。另外，参照图6，图6为本申请实施例提供的基座101的一种结构示意图，在本申请中，基座101可设置有第一弧形槽1011。则第一弧形转动块102111可容置于第一弧形槽1011，且第一弧形转动块102111可沿第一弧形槽1011的槽面滑动，从而通过第一弧形转动块102111沿第一弧形槽1011的槽面的滑动来实现第一摆臂10211绕基座101的转动。
在本申请中，第一弧形转动块102111可以但不限于为圆弧形转动块，第一弧形槽1011可以但不限于为圆弧形槽。可以理解的是，当第一弧形转动块102111为圆弧形转动块时，其用于与第一弧形槽1011的槽面相接触的表面可为圆弧面，且第一弧形槽1011的槽面也为圆弧面，该两个圆弧面的圆心重合。
值得一提的是，在本申请一些可能的实施例中，第一摆臂10211和基座101还可以通过实心轴转动连接，从而可提升第一摆臂10211和基座101转动连接的可靠性，进而提升转轴机构1的结构可靠性。
可继续参照图4，第一转动组件1021还可以包括第一径向旋臂10212和第一壳体固定架10213，第一径向旋臂10212位于第一摆臂10211和第一壳体固定架10213之间，第一径向旋臂10212与第一摆臂10211转动连接，且第一径向旋臂10212与第一壳体固定架10213转动连接。具体实施时，第一径向旋臂10212包括第一连接部102121和第二连接部102122，其中，第一连接部102121与第一摆臂10211转动连接，第二连接部102122与第一壳体固定架10213转动连接。
一并参照图4和图5，在本申请中，第一径向旋臂10212的第一连接部102121可通过第一转轴102113与第一摆臂10211转动连接，第一转轴102113的轴线沿第一方向延伸。另外，一并参照图4和图7，图7为本申请实施例提供的第一壳体固定架10213的一种结构示意图。第二连接部102122可通过第二转轴1021311与第一壳体固定架10213转动连接，第二转轴1021311的轴线沿第一方向延伸。则第一径向旋臂10212的转动轴线沿第一方向延伸。其中，该第一方向为垂直于基座101的长度方向，其也可以理解为第一壳体固定架10213沿朝向或者背离基座101运动的方向。
另外，在本申请实施例中，沿第一方向，第一摆臂10211、第一径向旋臂10212和第一壳体固定架10213的相对位置固定。具体实施时，可继续参照图5，该第一摆臂10211可设置有第一安装孔102112，另外， 如图4所示的第一径向旋臂10212的第一连接部102121可设置有第二安装孔(图4中未示出)，则第一转轴102113可同时穿设于第一安装孔102112和第二安装孔。而为了在第一方向上使第一摆臂10211和第一径向旋臂10212的相对位置固定，可以在第一转轴102113的两个端部分别设置一个止挡部。从而可在实现对第一摆臂10211和第一径向旋臂10212在该第一方向上进行限位的同时，还可以使第一径向旋臂10212相对第一摆臂10211转动。在本申请中，不对该两个止挡部的具体结构进行限定，其示例性的可为卡环，或者可将第一转轴102113设置为铆钉，且该铆钉可与第一摆臂10211铆接，此时只需在第一转轴102113的穿过第一连接部102121的端部设置一个卡环即可。在本申请另外一些可能的实施例中，第一摆臂10211和第一径向旋臂10212还可以采用其它可能的方式实现在第一方向上的限位，在此不对其进行一一介绍。
在将第一径向旋臂10212与第一壳体固定架10213相连接时，如图4所示，第一径向旋臂10212的第二连接部102122可开设有第一卡槽1021221。另外，如图7所示，第一壳体固定架10213设置有第一卡接部102131，该第一卡接部102131可插设于第一卡槽1021221内。则第二转轴1021311可同时穿设于第一卡槽1021221的槽壁和第一卡接部102131，从而可在实现对第一径向旋臂10212和第一壳体固定架10213在该第一方向上进行限位的同时，还可以使第一径向旋臂10212相对第一壳体固定架10213转动。在本申请另外一些可能的实施例中，还可以采用其它可能的方式实现第一径向旋臂10212与第一壳体固定架10213在沿第一方向上的限位，示例性的，还可参照上述第一径向旋臂10212与第一摆臂10211的连接方式在第二转轴1021311的两个端部分别设置一个止挡部，从而实现对第一摆臂10211和第一径向旋臂10212在该第一方向上的限位。
在本申请一个可能的实施例中，第一径向旋臂10212还可通过同一个转轴同时与第一壳体固定架10213和第一摆臂10211转动连接，以简化第一转动组件1021的结构，并有利于提升第一摆臂10211、第一径向旋臂10212以及第一壳体固定架10213绕基座101转动的一致性。
由上文对第一摆臂10211、第一径向旋臂10212以及第一壳体固定架10213之间的连接关系的介绍可以知道三者之间在第一方向上的相对位置固定，则第一壳体固定架10213绕基座101转动可带动第一径向旋臂10212和第一摆臂10211一并绕基座101转动，且三者绕基座101转动的运动轨迹相同。由此可知，第一壳体固定架10213带动第一摆臂10211绕基座101的运动为一级运动传递，其传动精度较高。另外，由于第一摆臂10211与第一壳体固定架10213只通过第一径向旋臂10212连接，其结构较简单，占用的空间较小，从而可有利于实现转轴机构1的小型化及轻薄化设计。
值得一提的是，如图4所示，当转轴机构1包括多个转动模组102时，相邻两个转动模组102的两个第一转动组件1021可共用一个第一摆臂10211，则一个第一摆臂10211可设置有两个第一弧形转动块102111，且一个第一摆臂10211可与两个第一径向旋臂10212转动连接。这样可有利于简化转轴机构1的结构，并可使转轴机构1的结构较为紧凑。
如图4所示，第一转动组件1021还可以包括第一支撑臂10214，第一支撑臂10214与基座101转动连接，且第一支撑臂10214绕基座101转动的轴线与第一摆臂10211绕基座101转动的轴线均平行于基座101的长度方向且相互不重合。另外，在图4所示的实施例中，第一支撑臂10214可通过销轴与基座101转动连接，以提高第一支撑臂10214与基座101转动连接的可靠性。
可继续参照图4，第一支撑臂10214与第一壳体固定架10213沿第一方向滑动连接。其中，如图7所示，第一壳体固定架10213设置有第一滑槽102132，第一支撑臂10214容置于第一滑槽102132，且第一支撑臂10214可在第一滑槽102132内沿第一方向滑动。另外，为了提高第一支撑臂10214与第一壳体固定架10213滑动连接的可靠性，还可以在第一滑槽102132内设置第一滑道，并在第一支撑臂10214设置第一滑块，这样可将第一滑块卡设于第一滑道，从而可在将第一支撑臂10214限位于第一壳体固定架10213的同时，还可以使第一滑道对第一支撑臂10214沿第一壳体固定架10213的滑动起到导向的作用。
在本申请中，第二转动组件1022可参照第一转动组件1021进行设置，具体的，参照图4，第二转动组件1022可包括第二摆臂10221，第二摆臂10221的结构也可用图5表示，该第二摆臂10221的朝向基座101的一端设置有第二弧形转动块102211。另外，如图6所示，基座101设置有第二弧形槽1012，则第二弧形转动102211可容置于第二弧形槽1012，且第二弧形转动块102211可沿第二弧形槽1012的槽面滑动，从而通过第二弧形转动块102211沿第二弧形槽1012的弧形面的滑动来实现第二摆臂10221与基座101的转动连接。
在本申请中，第二弧形转动块102211可以但不限于为圆弧形转动块，第二弧形槽1012可以但不限于 为圆弧形槽。可以理解的是，当第二弧形转动块102211为圆弧形转动块时，其用于与第二弧形槽1012的槽面相接触的表面可为圆弧面，且第二弧形槽1012的槽面也为圆弧面，该两个圆弧面的圆心重合。
值得一提的是，在本申请一些可能的实施例中，第二摆臂10221和基座101还可以通过实心轴转动连接，从而可提升第二摆臂10221和基座101转动连接的可靠性，进而提升转轴机构1的结构可靠性。
另外，如图4所示，第二转动组件1022还可以包括第二径向旋臂10222和第二壳体固定架10223，第二径向旋臂10222位于第二摆臂10221和第二壳体固定架10223之间，第二径向旋臂10222包括第三连接部102221和第四连接部102222，其中，第三连接部102221与第二摆臂10221转动连接，第四连接部102222与第二壳体固定架10223转动连接。具体实施时，一并参照图4和图5，第二径向旋臂10222的第三连接部102221与第二摆臂10221通过第三转轴102213转动连接，第三转轴102213的轴线沿第二方向延伸。另外，一并参照图4和图7，第四连接部102222与第二壳体固定架10223通过第四转轴1022311转动连接，第四转轴1022311的轴线沿第二方向延伸。则第二径向旋臂10222的转动轴线沿第二方向延伸。其中，该第二方向垂直于基座的长度方向，其也可以理解可为第二壳体固定架10223沿朝向或者背离基座101运动的方向。
在本申请实施例中，沿第二方向，第二摆臂10221、第二径向旋臂10222和第二壳体固定架10223的相对位置固定。其中，第二摆臂10221与第二径向旋臂10222在第二方向上的相对位置的固定方式可参照第一摆臂10211与第一径向旋臂10212在第一方向上的相对位置的固定方式进行设置，简单地说，第三转轴102213可同时穿设于第二摆臂10221上的第三安装孔102212和第二径向旋臂10222的第三连接部102221的第四安装孔，且在第三转轴102213的两个端部分别设置一个止挡部。第二径向旋臂10222与第二壳体固定架10223在第二方向上的相对位置的固定方式可参照第一径向旋臂10212与第一壳体固定架10213在第一方向上的相对位置的固定方式进行设置，简单地说，如图4所示，第四连接部102222可开设有第二卡槽1022221，另外，如图7所示，第二壳体固定架10223设置有第二卡接部102231，第二卡接部102231插设于第二卡槽1022221，第四转轴1022311穿设于第二卡槽1022221的槽壁和第二卡接部102231。
在本申请一个可能的实施例中，第二径向旋臂10222还可通过同一个转轴同时与第二壳体固定架10223和第二摆臂10221转动连接，以简化第二转动组件1022的结构，并有利于提升第二摆臂10221、第二径向旋臂10222和第二壳体固定架10223绕基座101转动的一致性。
由于第二摆臂10221、第二径向旋臂10222和第二壳体固定架10223三者之间在第二方向上的相对位置固定，则第二摆臂10221绕基座101转动可带动第二径向旋臂10222和第二壳体固定架10223一并绕基座101转动，且三者绕基座101转动的运动轨迹相同。由此可知，第二摆臂10221带动第二壳体固定架10223绕基座101的运动为一级运动传递，其传动精度较高。另外，由于第二摆臂10221与第二壳体固定架10223只通过第二径向旋臂10222连接，其结构较简单，占用的空间较小，从而可有利于实现转轴机构1的小型化及轻薄化设计。
在本申请中，第二转动组件1022还可以包括第二支撑臂10224，第二支撑臂10224与基座101转动连接，且第二支撑臂10224绕基座101转动的轴线与第二摆臂10221绕基座101转动的轴线均平行于基座101的长度方向且相互不重合。另外，在图4所示的实施例中，第二支撑臂10224可通过销轴与基座101转动连接，以提高第二支撑臂10224与基座101转动连接的可靠性。
另外，第二支撑臂10224与第二壳体固定架10223滑动连接。具体的，如图7所示，第二壳体固定架10223设置有第二滑槽102232，第二支撑臂10224容置于第二滑槽102232，且第二支撑臂10224可在第二滑槽102232内沿第二方向滑动。在本申请中，为了提高第二支撑臂10224与第二壳体固定架10223滑动连接的可靠性，还可以在第二滑槽102232内设置第二滑道，并在第二支撑臂10224设置第二滑块，这样可将第二滑块卡设于第二滑道，从而可在将第二支撑臂10224限位于第二壳体固定架10223的同时，还可以使第二滑道对第二支撑臂10224沿第二壳体固定架10223的滑动起到导向的作用。
由上文的介绍可以知道，第一支撑臂10214绕基座101转动的轴线与第一摆臂10211绕基座101转动的轴线平行不重合，第二支撑臂10224绕基座101转动的轴线与第二摆臂10221绕基座101转动的轴线平行不重合，则第一摆臂10211和第一支撑臂10214相对基座101转动的过程中存在相位差，第二摆臂10221和第二支撑臂10224相对基座101转动的过程中存在相位差。这样，在电子设备折叠和展开的过程中，第一支撑臂10214与第一壳体固定架10213可发生相对滑动，第二支撑臂10224与第二壳体固定架10223可发生相对滑动，其可使第一壳体固定架10213和第二壳体固定架10223可沿朝向或者背离基座101的方向运动，从而在第一转动组件1021和第二转动组件1022相向转动的过程中，使第一壳体固定架10213相对第一支撑臂10214向远离第一支撑臂10214的转动轴心(基座101)的方向滑动，并使第二壳体固定架10223相对 第二支撑臂10224向远离第二支撑臂10224的转动轴心(基座101)的方向滑动，从而使第一转动组件1021和第二转动组件1022相对基座101的延伸长度增加，其可在第一转动组件1021、第二转动组件1022和基座101之间形成满足柔性显示屏的可折叠部分弯折要求的容屏空间。另外，在第一转动组件1021和第二转动组件1022相背转动的过程中，会使第一壳体固定架10213相对第一支撑臂10214向靠近第一支撑臂10214的转动轴心的方向滑动，第二壳体固定架10223相对第二支撑臂10224向靠近第二支撑臂10224的转动轴心的方向滑动，从而使第一转动组件1021和第二转动组件1022相对基座101的延伸长度缩减，从而缩减转轴机构的长度，这样在转轴机构处于闭合状态、展开状态以及折叠过程中，均可使第一转动组件1021和第二转动组件1022相对基座101的延伸长度能够适应柔性显示屏的状态，从而避免造成对柔性显示屏4的拉扯或者挤压，其有利于提升柔性显示屏4的结构可靠性，以降低其损坏的风险。
在本申请实施例中，由于第一摆臂10211与基座101转动连接，且第一摆臂10211与第一壳体固定架10213通过第一径向旋臂10212相连接。则在电子设备处于展开状态时，为了避免第一径向旋臂10212与基座101发生干涉，可对第一径向旋臂10212进行避让设计。具体实施时，可参照图8，图8为本申请实施例提供的第一径向旋臂10212在电子设备处于展开状态时的结构示意图。该第一径向旋臂10212还包括第一避让口102123，该第一避让口102123位于第一连接部102121和第二连接部102122之间。
另外，参照图9和图10，图9为本申请实施例提供的转轴机构1在电子设备处于展开状态时的俯视图，图10为图9所示转轴机构1的A-A处的剖视图。由图10可以看出，基座101还包括外观壳1013，该外观壳1013背离柔性显示屏设置。另外，外观壳1013包括第一端10131和第二端10132，其中，第一端10131朝向第一壳体固定架10213设置，第二端10132朝向第二壳体固定架10223设置。在本申请中，外观壳1013还可以包括外观面10133，该外观面10133背离柔性显示屏设置，且在转轴机构1转动的过程中，外观面10133始终位于转轴机构1的外部。
可继续参照图10，在电子设备处于展开状态时，外观壳1013的第一端10131可插设于第一避让口102123。可以理解的是，第一避让口102123的开口形状可根据外观壳1013的第一端10131的形状进行设置，从而可在实现第一径向旋臂10212对外观壳1013的第一端10131进行避让的同时，还可以使转轴机构1具有较为完整的外观面，其有利于提升电子设备的外观美观性。
可继续参照图10，第二径向旋臂10222还包括第二避让口102223，该第二避让口102223位于第三连接部102221和第四连接部102222之间。另外，外观壳1013的第二端10132可插设于第二避让口102223。则第二避让口102223的开口形状可根据外观壳1013的第二端10132的形状进行设置，从而可在实现第二径向旋臂10222对外观壳1013的第二端10132进行避让的同时，还可以使转轴机构1具有较为完整的外观面，其有利于提升电子设备的外观美观性。
值得一提的是，在本申请中，通过在第一径向旋臂10212上开设第一避让口102123，在第二径向旋臂10222开设第二避让口102223，可以在避免第一径向旋臂10212和第二径向旋臂10222与基座101的外观壳1013发生干涉的同时，还可以使第一径向旋臂10212的与第一避让口102123相背设置的部分的壁厚向背离第一避让口102123的方向增加，并使第二径向旋臂10222的与第二避让口102223相背设置的部分的壁厚向背离第二避让口102223的方向增加，从而可增加第一径向旋臂10212和第二径向旋臂10222的结构可靠性，以使第一径向旋臂10212和第二径向旋臂10222的结构强度满足要求，其有利于提升转轴机构1的结构可靠性。
具体实施时，可继续参照图10，第一径向旋臂10212还可以包括第一避让部102126，第一避让部102126位于第一连接部102121和第二连接部102122之间，且第一连接部102121和第二连接部102122通过第一避让部102126连接；第一避让部102126与第一避让口102123相背设置，在本申请中，可将第一避让部102126的背离第一避让口102123的表面定义为第一连接面1021261。相类似的，第二径向旋臂10222还可以包括第二避让部102226，第二避让部102226位于第三连接部102221和第四连接部102222之间，且第三连接部102221和第四连接部102222通过第二避让部102226连接；第二避让部102226与第二避让口102223相背设置，在本申请中，可将第二避让部102226的背离第二避让口102223的表面定义为第二连接面1022261。
参照图11，图11为图10中所示的转轴机构1在电子设备处于中间状态的结构示意图。其中，电子设备的中间状态为由展开状态到闭合状态，或由闭合状态到展开状态过程中的任一状态。通过对比图10和图11可以看出，电子设备在由图10所示的展开状态到图11所示的中间状态的过程中，外观壳1013的第一端10131可从第一径向旋臂10212的第一避让口102123中滑出，外观壳1013的第二端10132可从第二径 向旋臂10222的第二避让口102223中滑出，在该过程中同样可避免第一径向旋臂10212和第二径向旋臂10222与基座101的外观壳1013发生干涉。
另外，可参照图12，图12为图10中所示的转轴机构1在电子设备处于闭合状态的结构示意图。通过对比图10和图12可以看出，在电子设备由展开状态到闭合状态的过程中，第一径向旋臂10212的第一避让口102123与第一壳体固定架10213的相对位置关系发生了变化，第二径向旋臂10222的第二避让口102223与第二壳体固定架10223的相对位置关系发生了变化，则在该过程中第一径向旋臂10212相对第一壳体固定架10213发生了转动，第二径向旋臂10222相对第二壳体固定架10223发生了转动，且在该过程中第一径向旋臂10212的第一连接面1021261和第二径向旋臂10222的第二连接面1022261均向背离柔性显示屏的一侧旋转。
由上述图10至图12的分析可以理解，本申请提供的转轴机构，在电子设备由展开状态到闭合状态转动的过程中，第一支撑臂10214绕基座转动可带动第一径向旋臂10212相对第一摆臂10211和第一壳体固定架10213绕其轴线转动，第二支撑臂10224绕基座转动可带动第二径向旋臂10222相对第二摆臂10221和第二壳体固定架10223绕其轴线转动，从而使第一径向旋臂10212的第一连接面和第二径向旋臂10222的第二连接面均向背离柔性显示屏的一侧旋转。这样的结构设计，使得第一径向旋臂10212的第一避让部102126和第二径向旋臂10222的第二避让部102226的厚度可以根据强度的需要进行灵活设置甚至增厚设置。又因为第一避让部102126和第二避让部102226在电子设备折叠的过程中向背离柔性显示屏的方向旋转，则在电子设备处于闭合状态时可有效的避免第一避让部102126和第二避让部102226对柔性显示屏造成干涉。因此，本申请提供的转轴机构，可以在实现第一径向旋臂10212和第二径向旋臂10222对外观壳以及柔性显示屏避让的同时，还可以保证整个第一径向旋臂10212和第二径向旋臂10222的结构强度，从而可有利于转轴机构的结构可靠性的提升。
参照图13，图13为图12中所示的转轴机构1的第一径向旋臂10212的结构示意图，其用于展示电子设备处于闭合状态时第一径向旋臂10212的状态。在本申请中，电子设备处于闭合状态时，为了使转轴机构1能够形成满足柔性显示屏4弯折要求的容屏空间，第一径向旋臂10212还可以设置有第一避让面102124。另外，在电子设备处于闭合状态时，第一避让面102124朝向转轴机构1的折叠内侧设置，从而使第一避让面102124对柔性显示屏的可折叠部分进行避让。一并参照图12和图13，第一避让面102124可设置于第一连接部102121，且该第一避让面102124可为一弧形凹面。在本申请中，不对第一避让面102124的具体形状进行限定，其可根据柔性显示屏4的可折叠部分的弯折形态进行具体设置。
在电子设备处于闭合状态时，为了使转轴机构1能够形成用于容纳柔性显示屏4的可折叠部分的容屏空间5为一对称的空间，如图12所示，第二径向旋臂10222还可以设置有第二避让面102224，该第二避让面102224可设置于第三连接部102221，且该第二避让面102224可为一弧形凹面。另外，第二避让面102224朝向转轴机构1的折叠内侧设置，则在电子设备处于闭合状态时，第一避让面102124和第二避让面102224可相对设置，且第一避让面102124和第二避让面102224可对柔性显示屏4的可折叠部分进行避让。这样可有利于提升柔性显示屏4的受力均匀性，从而可提升柔性显示屏4的结构可靠性。
可继续参照图12，在本申请实施例中，在电子设备处于闭合状态时，第一摆臂10211的朝向转轴机构1的折叠内侧的表面也可以为一弧形凹面，则第一摆臂10211的弧形凹面与第一避让面102124可连接形成一平滑的避让面。第二摆臂10221的朝向转轴机构1的折叠内侧的表面也可以为一弧形凹面，则第二摆臂10221的弧形凹面与第二避让面102224可连接形成一平滑的避让面。从而可在电子设备处于闭合状态时，有利于增大转轴机构1形成的容屏空间，其可降低对柔性显示屏4的可折叠部分造成挤压的风险。
在本申请提供的转轴机构中，通过使第一避让口102123、第一连接面1021261和第一避让面102124分别朝向三个不同的方向设置，并使第二避让口102223、第二连接面1022261和第二避让面102224分别朝向三个不同的方向设置，可以在电子设备处于展开状态时，使第一避让口102123和第二避让口102223对外观壳进行避让。而在电子设备由展开状态到闭合状态的折叠过程中，可使第一连接面1021261和第二连接面1022261向背离柔性显示屏的方向转动，从而避免第一避让部102126和第二避让部102226对柔性显示屏造成干涉。另外，在电子设备处于闭合状态时，第一避让面102124和第二避让面102224可朝向柔性显示屏的可折叠部分，以实现对柔性显示屏的可折叠部分的避让。这样的设计，可在实现转轴机构对外观壳以及柔性显示屏的避让的同时，还可以在不增加转轴机构的尺寸的同时使其结构强度得以保证，从而使该转轴机构既轻薄又可靠。
由上文的介绍可以知道，由于第一支撑臂10214与第一摆臂10211之间存在相位差，且第二支撑臂 10224与第二摆臂10221之间存在相位差，则在电子设备折叠的过程中，第一支撑臂10214可相对第一壳体固定架10213滑动，第二支撑臂10224可相对第二壳体固定架10223滑动。又因为沿第一方向，第一摆臂10211、第一径向旋臂10212和第一壳体固定架10213的相对位置固定，则第一支撑臂10214在相对第一壳体固定架10213滑动的同时也相对第一径向旋臂10212移动。相类似的，因为沿第二方向，第二摆臂10221、第二径向旋臂10222和第二壳体固定架10223的相对位置固定，则第二支撑臂10224在相对第二壳体固定架10223滑动的同时也相对第二径向旋臂10222移动。基于此，在本申请实施例中，可通过第一支撑臂10214相对第一壳体固定架10213的滑动带动第一径向旋臂10212相对第一摆臂10211和第一壳体固定架10213转动。并通过第二支撑臂10224相对第二壳体固定架10223的滑动带动第二径向旋臂10222相对第二摆臂10221和第二壳体固定架10223转动。
具体实施时，可参照图14，图14为本申请实施例提供的第一径向旋臂10212和第一支撑臂10214的一种配合关系示意图。其中，第一径向旋臂10212设置有第一轨迹槽102125，第一支撑臂10214设置有第一导向部102141，该第一导向部102141可插设于第一轨迹槽102125，则在第一支撑臂10214沿第一壳体固定架10213滑动的过程中，第一导向部102141可沿第一轨迹槽102125滑动。
参照图15a，图15a为本申请实施例提供的转轴机构1的一种局部结构示意图，其可用于展示电子设备处于展开状态时，第一支撑臂10214、第一径向旋臂10212与基座101的相对位置关系。此时，如图10所示，第一径向旋臂10212的第一避让口102123对基座101的外观壳1013的第一端10131进行避让。
参照图15b，图15b为本申请实施例提供的转轴机构1的另一种局部结构示意图，其可用于展示电子设备处于中间状态时，第一支撑臂10214、第一径向旋臂10212与基座101的相对位置关系。一并参照图15a和图15b可以看出，在电子设备由展开状态到闭合状态的过程中，第一支撑臂10214的第一导向部102141相对第一轨迹槽102125朝基座101的方向滑动，从而带动第一径向旋臂10212按设定角度相对第一摆臂10211和第一壳体固定架10213转动。
另外，参照图15c，图15c为本申请实施例提供的转轴机构1的另一种局部结构示意图，其可用于展示电子设备处于闭合状态时，第一支撑臂10214、第一径向旋臂10212与基座101的相对位置关系。此时，第一径向旋臂10212的第一避让面102124朝向转轴机构1的折叠内侧，从而使第一径向旋臂10212能够对柔性显示屏的可折叠部分进行避让，其可避免对柔性显示屏4的可折叠部分造成挤压。
可以理解的是，在本申请中，可根据第一摆臂10211和第一支撑臂10214绕基座101转动的轨迹以及第一摆臂10211和第一支撑臂10214转动过程中的相位差等对第一轨迹槽102125的形态进行拟合，示例性的，第一轨迹槽102125为螺旋槽。这样，第一导向部102141沿第一轨迹槽102125滑动可带动第一径向旋臂10212相对第一摆臂10211转动，以在电子设备处于展开状态时，使外观壳1013的第一端10131插设于第一避让口102123；并在电子设备处于闭合状态时，使第一径向旋臂10212的第一避让面102124可对柔性显示屏的可折叠部分进行避让。
在本申请实施例中，第二径向旋臂10222和第二支撑臂10224的配合关系与第一径向旋臂10212和第一支撑臂10214的配合关系相类似。具体的，可继续参照图14，图14也可用于展示第二径向旋臂10222和第二支撑臂10224的配合关系，其中，第二径向旋臂10222设置有第二轨迹槽102225，第二支撑臂10224设置有第二导向部102241，该第二导向部102241可插设于第二轨迹槽102225，则在第二支撑臂10224沿第二壳体固定架10223滑动的过程中，第二导向部102241可沿第二轨迹槽102225滑动。
另外，在本申请中，可根据第二摆臂10221和第二支撑臂10224绕基座101转动的轨迹以及第二摆臂10221和第二支撑臂10224转动过程中的相位差等对第二轨迹槽102225的形态进行拟合，示例性的，第二轨迹槽102225为螺旋槽。这样，第二导向部102241沿第二轨迹槽102225滑动可带动第二径向旋臂10222相对第二摆臂10221转动，以在电子设备处于展开状态时，使外观壳1013的第二端10132插设于第二径向旋臂10222的第二避让口102223，以实现第二径向旋臂10222对基座101的避让。并在电子设备由展开状态到闭合状态的过程中，使第二支撑臂10224的第二导向部102241相对第二轨迹槽102225朝基座101的方向滑动，从而带动第二径向旋臂10222按设定角度相对第二摆臂10221和第二壳体固定架10223转动。而当电子设备处于闭合状态时，第二径向旋臂10222的第二避让面102224可对柔性显示屏的可折叠部分进行避让，从而使第二径向旋臂10222让出容屏空间5，其可避免对柔性显示屏的可折叠部分造成挤压。
可以理解的是，当电子设备由闭合状态到展开状态的过程中，各结构的运动方向与上文中电子设备由展开状态到闭合状态的过程中的运动方向相反，在此不对其进行赘述。
可继续参照图4，在本申请中，第一转动组件1021还可以包括第一阻尼模块10215。另外，参照图7， 第一壳体固定架10213还包括第一安装槽102133，第一阻尼模块10215安装于第一安装槽102133，第一安装槽102133的槽壁开设有第一缺口1021331。另外，第一安装槽102133可与第一滑槽102132相邻设置，则第一滑槽102132与第一安装槽102133可通过第一缺口1021331连通。
在具体设置第一阻尼模块10215时，可参照图16，图16为本申请实施例提供的第一阻尼模块10215的一种结构示意图。第一阻尼模块10215可以包括第一弹性件102151和第一阻尼支架102152。其中，第一弹性件102151可以但不限于为弹簧，第一阻尼支架102152包括第一凸起1021521，一并参照图7和图16，第一弹性件102151可将第一阻尼支架102152压向第一安装槽102133的槽壁，且在第一弹性件102151的弹性力作用下，第一阻尼支架102152的第一凸起1021521可沿第一缺口1021331滑动并伸入至第一滑槽102132。
可以理解的是，在本申请中，当第一弹性件102151为弹簧时，如图7所示，第一安装槽102133内还可以设置有第一限位柱1021332，则弹簧可套设于第一限位柱1021332，其可在第一弹性件102151对第一阻尼支架102152进行挤压的过程中，有效的避免第一弹性件102151发生弯折，其可有效的提升第一阻尼模块10215的结构可靠性。另外，第一阻尼支架102152还可以包括两个第一限位部1021522，该两个第一限位部1021522的延伸方向与第一弹性件102151的弹性力的作用方向相同，第一弹性件102151可位于两个第一限位部1021522之间，从而在两个第一限位部1021522的作用下，进一步降低第一弹性件102151发生弯折的风险，从而提升第一阻尼模块10215的结构可靠性。
由前文可知，第一支撑臂10214可沿第一滑槽102132滑动，则在本申请中，可一并参照图7和图14，第一支撑臂10214的朝向第一安装槽102133的表面可设置有第二凸起1021421。这样，当第一凸起1021521伸入至第一滑槽102132时，在第一方向上，第一凸起1021521与第二凸起1021421相对的侧面抵接，则在第一凸起1021521与第二凸起1021421之间产生阻尼力，以使第一凸起1021521阻挡第一支撑臂10214继续沿第一滑槽102132滑动，从而可使第一壳体固定架10213保持在对应的转动位。另外，在第一转动组件1021相对基座101转动的过程中，由于第一支撑臂10214与第一阻尼模块10215之间阻尼力的存在，其可以使用户开合电子设备的过程中有较为明显的顿挫手感，以提升用户使用体验。
可以理解的是，由于第一凸起1021521可始终与第二凸起1021421的两个斜面以及位于两个斜面之间的连接面相抵接，则通过对第二凸起1021421的两个斜面和位于两个斜面之间的连接面，以及第一凸起1021521与第二凸起1021421的抵接方式进行合理的设计，可以在电子设备处于展开状态和闭合状态时，使第一壳体固定架10213保持在对应的转动位；另外，当电子设备由中间状态到展开状态或闭合状态折叠的过程中，可使第一凸起1021521与第二凸起1021421之间的抵接力较小，则在没有外力的作用下，第二凸起1021421可相对第一凸起1021521继续沿第一方向滑动，直至处于稳定的展开状态或者闭合状态，从而可实现电子设备在展开状态的末尾阶段的自展开功能，以及在闭合状态的末尾阶段的自闭合功能。
可继续参照图4，在本申请中，第一支撑臂10214可包括两个相对设置的第一连接臂102142，则第一壳体固定架10213可对应每个第一连接臂102142设置一个第一滑槽102132，以使每个第一连接臂102142可在对应的第一滑槽102132内滑动来实现第一支撑臂10214与第一壳体固定架10213的滑动连接。另外，沿第一支撑臂10214的转动轴线的延伸方向，两个第一连接臂102142间隔设置，则第一安装槽102133和第一阻尼模块10215位于两个第一连接臂102142之间。这样可使第一转动组件1021的结构较为紧凑，从而有利于实现转轴机构1的小型化设计。
值得一提的是，当第一支撑臂10214包括两个相对设置的第一连接臂102142时，可将第二凸起1021421设置于其中一个第一连接臂102142的朝向第一安装槽102133的表面，或者可在每个第一连接臂102142的朝向第一安装槽102133的表面各设置一个第二凸起1021421，其具体可根据第一凸起1021521以及第一缺口1021331的数量以及设置位置进行适应性的调整。
在本申请中，第二转动组件1022还包括第二阻尼模块10225。该第二阻尼模块10225可参照第一阻尼模块10215进行设置。示例性的，参照图7，图7也可用于展示第二壳体固定架10223的结构。第二壳体固定架10223还包括第二安装槽102233，第二阻尼模块10225安装于第二安装槽102233，第二安装槽102233的槽壁开设有第二缺口1022331。另外，第二安装槽102233可与第二滑槽102232相邻设置，则第二滑槽102232与第二安装槽102233可通过第二缺口1022331连通。
在具体设置第二阻尼模块10225时，如图16所示，图16也可用于展示第二阻尼模块10225的结构。第二阻尼模块10225可以包括第二弹性件102251和第二阻尼支架102252。其中，第二弹性件102251可以但不限于为弹簧，第二阻尼支架102252包括第三凸起1022521，则第二弹性件102251可将第二阻尼支架 102252压向第二安装槽102233的槽壁，且在第二弹性件102251的弹性力作用下，第二阻尼支架102252的第三凸起1022521可沿第二缺口1022331滑动并伸入至第二滑槽102232。
在本申请中，当第二弹性件102251为弹簧时，第二安装槽102233内还可以设置有第二限位柱1022332，则弹簧可套设于第二限位柱1022332，其可在第二弹性件对第二阻尼支架进行挤压的过程中，有效的避免第二弹性件102251发生弯折，其可有效的提升第二阻尼模块10225的结构可靠性。另外，第二阻尼支架102252还可以包括两个第二限位部1022522，该两个第二限位部1022522的延伸方向与第二弹性件102251的弹性力的作用方向相同，第二弹性件102251可位于两个第二限位部1022522之间，从而在两个第二限位部1022522的作用下，进一步降低第二弹性件102251发生弯折的风险，从而提升第二阻尼模块10225的结构可靠性。
由前文可知，第二支撑臂10224可沿第二滑槽102232滑动，则在本申请中，可一并参照图7和图14，第二支撑臂10224的朝向第二安装槽102233的表面可设置有第四凸起1022421。这样，当第三凸起1022521伸入至第二滑槽102232时，在第二方向上，第三凸起1022521与第四凸起1022421相对的侧面之间抵接，则在第三凸起1022521与第四凸起1022421之间产生阻尼力，以使第三凸起1022521阻挡第二支撑臂10224继续沿第二滑槽102232运动，从而可使第二壳体固定架10223保持在对应的转动位。另外，在第二转动组件1022相对基座101转动的过程中，由于第二支撑臂10224与第二阻尼模块10225之间阻尼力的存在，其可以使用户开合电子设备的过程中有较为明显的顿挫手感，以提升用户使用体验。
可以理解的是，由于第三凸起1022521可始终与第四凸起1022421的两个斜面以及位于两个斜面之间的连接面相抵接，则通过对第四凸起1022421的两个斜面以及位于两个斜面之间的连接面，以及第三凸起1022521与第四凸起1022421的抵接方式进行合理的设计，可以在电子设备处于展开状态和闭合状态时，使第二壳体固定架10223保持在对应的转动位；另外，当电子设备由中间状态到展开状态或闭合状态折叠的过程中，可使第三凸起1022521与第四凸起1022421之间的抵接力较小，则在没有外力的作用下，第四凸起1022421可相对第三凸起1022521继续沿第二方向滑动，直至处于稳定的展开状态或者闭合状态，从而可实现电子设备在展开状态的末尾阶段的自展开功能，以及在闭合状态的末尾阶段的自闭合功能。
可继续参照图14，在本申请中，第二支撑臂10224可包括两个相对设置的第二连接臂102242，则如图7所示的第二壳体固定架10223可对应每个第二连接臂102242设置一个第二滑槽102232，以使每个第二连接臂102242可在对应的第二滑槽102232内滑动来实现第二支撑臂10224与第二壳体固定架10223的滑动连接。另外，沿第二支撑臂10224的转动轴线的延伸方向，两个第二连接臂102242间隔设置，则第二安装槽102233和第二阻尼模块10225位于两个第二连接臂102242之间。这样可使第二转动组件1022的结构较为紧凑，从而有利于实现转轴机构1的小型化设计。
值得一提的是，当第二支撑臂10224包括两个相对设置的第二连接臂102242时，可将第四凸起1022421设置于其中一个第二连接臂102242的朝向第二安装槽102233的表面，或者可在每个第二连接臂102242的朝向第二安装槽102233的表面各设置一个第四凸起1022421，其具体可根据第三凸起1022521以及第二缺口1022331的数量以及设置位置进行适应性的调整。
可继续参照图4，在本申请实施例中，第一转动组件1021还可以包括第一支撑板10216。另外，第二转动组件1022还可以包括第二支撑板10226。其中，第一支撑板10216包括相背设置的第一板面102161和第二板面102162，第二支撑板10226包括相背设置的第三板面102261和第四板面102262，第一板面102161可用于支撑柔性显示屏，第三板面102261可用于支撑柔性显示屏。
参照图17，图17为本申请实施例提供的转轴机构1在电子设备处于闭合状态时的另一种剖面图。由图17可以看出，本申请提供的转轴机构1，基座101可以包括用于支撑柔性显示屏的承载面1014。另外，在图17所示的闭合状态下，第一板面102161、第二板面102162和承载面1014之间可形成一个三角形的容屏空间5。电子设备的柔性显示屏的可弯折部分可容置于该容屏空间5内，以形成一个类水滴形态。
为了使转轴机构1能够形成上述如图17所示的容屏空间5，在本申请中，第一支撑板10216与第一壳体固定架10213转动连接，第二支撑板10226与第二壳体固定架10223转动连接。具体实施时，如图7所示，第一壳体固定架10213还可以设置有第一转动槽102134，该第一转动槽102134可以为圆弧形槽。另外，参照图18，图18为本申请实施例提供的转轴机构1在电子设备处于闭合状态时的另一种剖面图，其可用于展示第一支撑板10216与第一壳体固定架10213之间的配合关系。其中，第一支撑板10216的朝向第一壳体固定架10213的端部可以设置有第一转动部102163，该第一转动部102163可设置为弧形转动部，其示例性的可为圆弧形转动部。则第一转动部102163可安装于第一转动槽102134，并可通过第一转动部 102163沿第一转动槽102134的槽面的滑动，来实现第一支撑板10216与第一壳体固定架10213之间的相对转动。
可以理解的是，为了提高第一支撑板10216绕第一壳体固定架10213转动的稳定性，可以使第一壳体固定架10213设置有多个第一转动槽102134，并使第一支撑板10216设置有多个第一转动部102163，这样可使第一转动部102163一一对应的安装于一个第一转动槽102134中，以通过每个第一转动部102163绕对应的第一转动槽102134的槽面滑动来实现第一支撑板10216与第一壳体固定架10213之间的相对转动。
相类似的，在具体将第二支撑板10226和第二壳体固定架10223转动连接时，可继续参照图18，第二壳体固定架10223还可以设置有第二转动槽102234，该第二转动槽102234可以为圆弧形槽。另外，第二支撑板10226的朝向第二壳体固定架10223的端部可以设置有第二转动部102263，该第二转动部102263可设置为弧形转动部，示例性的可为圆弧形转动部。这样第二转动部102263可安装于第二转动槽102234，并可通过第二转动部102263沿第二转动槽102234的槽面的滑动，来实现第二支撑板10226与第二壳体固定架10223之间的相对转动。另外，第二壳体固定架10223可设置有多个第二转动槽102234，第二支撑板10226设置有多个第二转动部102263，这样可使第二转动部102263一一对应的安装于一个第二转动槽102234中，以通过每个第二转动部102263绕对应的第二转动槽102234的槽面滑动来实现第二支撑板10226与第二壳体固定架10223之间的相对转动，从而提高第二支撑板10226绕第二壳体固定架10223转动的稳定性。
在本申请中，第一支撑板10216与第一壳体固定架10213，以及第二支撑板10226与第二壳体固定架10223除了可通过上述的虚拟轴实现转动连接外，还可以采用其它可能的方式来实现转动连接。示例性的，在本申请其它一些可能的实施例中，第一支撑板10216还可以通过销轴与第一壳体固定架10213转动连接，从而使第一支撑板10216和第一壳体固定架10213通过实体轴转动连接。相类似的，第二支撑板10226也可通过销轴与第二壳体固定架10223转动连接，从而使第一支撑板10216和第一壳体固定架10213通过实体轴转动连接。
在本申请中，在电子设备处于展开状态时，第一支撑板10216的第一板面102161、第二支撑板10226的第二板面102162与基座的承载面可处于同一平面，从而可实现对电子设备的柔性显示屏的平整支撑。
由上述实施例对于第一转动组件1021和第二转动组件1022的结构的介绍可以知道，在第一转动组件1021中，第一壳体固定架10213可带动第一支撑臂10214绕基座101转动，在第二转动组件1022中，第二壳体固定架10223可带动第二支撑臂10224绕基座转动。基于此，在本申请中，可考虑通过第一支撑臂10214绕基座101的转动来驱动第一支撑板10216绕第一壳体固定架10213转动。同样的，也可通过第二支撑臂10224绕基座101的转动来驱动第二支撑板10226绕第二壳体固定架10223转动。
具体实施时，可继续参照图17，第一支撑板10216的第二板面102162可设置有第一导向件102164，该第一导向件102164可设置有第三轨迹槽1021641。另外，在本申请中，第一支撑臂10214还可以设置有第一导向结构102143，该第一导向结构102143可以但不限于为一柱状结构，且第一导向结构102143可插设于第一支撑板10216的第三轨迹槽1021641内，且可沿第三轨迹槽1021641滑动。这样，在第一支撑臂10214绕基座101转动的过程中，可通过第一导向结构102143在第三轨迹槽1021641内的滑动，带动第一支撑板10216绕第一壳体固定架10213转动。
相类似的，第二支撑板10226的第四板面102262可设置有第二导向件102264，该第二导向件102264可设置有第四轨迹槽1022641。另外，在本申请中，第二支撑臂10224还可以设置有第二导向结构102243，该第二导向结构102243可以但不限于为柱状结构，且第二导向结构102243可插设于第二支撑板10226的第四轨迹槽1022641内，且可沿第四轨迹槽1022641滑动。这样，在第二支撑臂10224绕基座101转动的过程中，可通过第二导向结构102243在第四轨迹槽1022641内的滑动，带动第二支撑板10226绕第二壳体固定架10223转动。
在图17所示的实施例中，第三轨迹槽1021641和第四轨迹槽1022641可为封闭槽，第一导向结构102143和第二导向结构102243可为导向轴，这样可以提高第一导向结构102143和第二导向结构102243在对应的轨迹槽内运动的可靠性，从而使第一支撑板10216和第二支撑板10226的运动较为稳定。
在本申请实施例中，转轴机构1由电子设备处于展开状态到闭合状态的转动过程中，第一壳体固定架10213和第二壳体固定架10223相向转动，第一壳体固定架10213带动第一支撑臂10214绕基座101转动，第二壳体固定架10223带动第二支撑臂10224绕基座101转动，第一支撑臂10214的第一导向结构102143沿第三轨迹槽1021641滑动，以带动第一支撑板10216相对第一壳体固定架10213转动，且带动第一支撑 板10216的靠近基座101的一端沿远离基座101的方向运动。另外，第二支撑臂10224的第二导向结构102243沿第四轨迹槽1022641滑动，以带动第二支撑板10226相对第二壳体固定架10223转动，且带动第二支撑板10226的靠近基座101的一端沿远离基座101的方向运动。从而可在第一支撑板10216、基座101和第二支撑板10226之间形成用于容纳柔性显示屏的可弯折部分的容屏空间5。
可继续参照图4，在本申请中，第一转动组件1021还包括第三支撑板10217，第三支撑板10217与第一壳体固定架10213滑动连接，且第三支撑板10217与第一支撑板10216滑动连接。具体实施时，可参照图19a，图19a为本申请实施例提供的转轴机构1在电子设备处于闭合状态时的另一种剖面图，其可用于展示第三支撑板10217与第一壳体固定架10213之间的配合关系。其中，第三支撑板10217包括第一滑动部102171和第一支撑部102172，第一壳体固定架10213包括第五轨迹槽102135，第一滑动部102171插设于第五轨迹槽102135，且可沿第五轨迹槽102135相对第一壳体固定架10213滑动。在本申请中，不对第五轨迹槽102135的具体设置形式进行限定，其示例性的可为直线槽，第一滑动部102171可在第五轨迹槽102135内相对第一壳体固定架10213沿第三方向滑动，其中，第三方向即为图19a中a所示的方向。
另外，可继续参照图4，第一支撑板10216包括第三滑槽102165，第一支撑部102172可沿第三滑槽102165滑动。在本申请中不对第三滑槽102165和第一支撑部102172的具体设置形式进行限定，示例性的，第三滑槽102165可为直线槽，另外，如图4所示，沿转轴机构1的轴向，第三滑槽102165可为并列设置的多个。而第一支撑部102172可设置为梳齿状结构，则第一支撑部102172的每个梳齿对应插设于一个第三滑槽102165，且可在第三滑槽102165相对第一支撑板10216内沿第四方向滑动，以实现第一支撑部102172在第三滑槽102165内相对第一支撑板10216沿第四方向的滑动，其中，第四方向即为图19a中b所示的方向。
可继续参照图19a，在本申请中，在电子设备处于闭合状态时，第三方向和第四方向的夹角大于0°，以使第一壳体固定架10213和第一支撑板10216对第三支撑板10217沿朝向基座101的方向的运动进行限位，从而可避免第三支撑板10217的脱落。
参照图19b，图19b为本申请实施例提供的转轴机构1在电子设备处于闭合状态时的另一种剖面图。由图19b可以看出，在电子设备处于闭合状态时，第三支撑板10217可避让第一摆臂10211，以使转轴机构1在该闭合状态下可形成满足柔性显示屏的弯折要求的容屏空间。另外，可一并参照图19a和图19b，第三支撑板10217还可以包括第一抵接部102173，该第一抵接部102173可位于第一滑动部102171和第一支撑部102172之间，在电子设备处于闭合状态时，第一抵接部102173与第一壳体固定架10213相抵接，以使第一壳体固定架10213为第一抵接部102173提供沿背离基座101的方向的支撑力，从而使第一壳体固定架10213为第三支撑板10217提供沿背离基座101的方向的支撑力，以避免第三支撑板10217脱落，从而提升第一转动组件1021的结构可靠性，进而提升转轴机构1的结构可靠性。
如图4所示，在本申请中，第一支撑部102172包括第五板面1021721。另外，参照图20，图20为图19a中所示的转轴机构1在电子设备处于展开状态时的结构示意图。其中，在图20所示的状态下，第三支撑板10217位于第一摆臂10211的朝向柔性显示屏的一侧，且第一板面102161和第五板面1021721连接形成用于支撑柔性显示屏的支撑面，其有利于提升转轴机构1的用于支撑柔性显示屏的支撑面的完整性，从而实现对柔性显示屏的平整支撑。
可继续参照图19a，第二转动组件1022还包括第四支撑板10227。第四支撑板10227与第二壳体固定架10223滑动连接，且第四支撑板10227与第二支撑板10226滑动连接。具体实施时，第四支撑板10227包括第二滑动部102271和第二支撑部102272，第二壳体固定架10223包括第六轨迹槽102235，第一滑动部102171插设于第六轨迹槽102235，且可沿第六轨迹槽102235相对第二壳体固定架10223滑动。在本申请中，不对第六轨迹槽102235的具体设置形式进行限定，其示例性的可为直线槽，第二滑动部102271可在第六轨迹槽102235内相对第二壳体固定架10223沿第五方向滑动，其中，第五方向即为图19a中c所示的方向。
另外，可继续参照图4，第二支撑板10226包括第四滑槽102265，第二支撑部102272可沿第四滑槽102265滑动，在本申请中不对第四滑槽102265和第二支撑部102272的具体设置形式进行限定，示例性的，第四滑槽102265可为直线槽，另外，如图4所示，在沿转轴机构1的轴向，第四滑槽102265可为并列设置的多个，第二支撑部102272可设置为梳齿状结构，则第二支撑部102272的每个梳齿对应插设于一个第四滑槽102265，且可在第四滑槽102265内相对第二支撑板10226沿第六方向滑动，以实现第二支撑部102272在第四滑槽102265内相对第二支撑板10226沿第六方向的滑动，其中，第六方向即为图19a中d所示的方 向。
另外，如图19a所示，在电子设备处于闭合状态时，第五方向和第六方向的夹角大于0°，以使第二壳体固定架10223和第二支撑板10226对第四支撑板10227沿朝向基座的方向的运动进行限位，从而可避免第三支撑板10217的脱落。
可继续参照图19b，在电子设备处于闭合状态时，第四支撑板10227可避让第二摆臂10221，以使转轴机构1在该闭合状态下可形成满足柔性显示屏的弯折要求的容屏空间。另外，第四支撑板10227还可以包括第二抵接部102273，一并参照图19a和图19b，该第二抵接部102273可位于第二滑动部102271和第二支撑部102272之间，在电子设备处于闭合状态时，第二抵接部102273与第二壳体固定架10223相抵接，以使第二壳体固定架10223为第二抵接部102273提供沿背离基座101的方向的支撑力，从而使第二壳体固定架10223为第四支撑板10227提供沿背离基座101的方向的支撑力，以避免第四支撑板10227脱落，从而提升第二转动组件1022的结构可靠性，进而提升转轴机构1的结构可靠性。
如图4所示，在本申请中，第二支撑部102272包括第六板面1022721。另外，可参照图20，当电子设备处于图20所示的展开状态时，第四支撑板10227可位于第二摆臂10221的朝向柔性显示屏的一侧，且第三板面102261和第六板面1022721连接形成用于支撑柔性显示屏的支撑面，其有利于提升转轴机构1的用于支撑柔性显示屏的支撑面的完整性，从而实现对柔性显示屏的平整支撑。
本申请上述实施例提供的转轴机构1可用于例如图1或图2中所示的电子设备。其中，第一壳体固定架10213可与位于基座101同一侧的壳体固定连接，第二壳体固定架10223可与另一个壳体固定连接。示例性的，第一壳体固定架10213可用于与图2中所示的电子设备的第一壳体2固定连接，第二壳体固定架10223可用于与图2中所示的电子设备的第二壳体3固定连接。基于此可以理解，第一壳体固定架10213和第二壳体固定架10223沿相向或相背的方向转动的过程，也即第一壳体2与第二壳体3沿相向或相背的方向转动的过程。
另外，电子设备的柔性显示屏4可以与第一壳体2和第二壳体3固定连接，其连接方式可以但不限于为粘接。具体实施时，柔性显示屏4可与第一壳体2的朝向柔性显示屏4的表面的部分区域粘接，且柔性显示屏4可与第二壳体3的朝向柔性显示屏4的表面的部分区域粘接，从而可在电子设备处于展开状态时，使转轴机构1、第一壳体2和第二壳体3共同起到对柔性显示屏4的平整支撑的作用，从而可保证电子设备在该展开状态下的形态完整。在电子设备由展开状态到闭合状态的过程中，两个壳体相向转动可带动柔性显示屏4转动，其可有效的避免柔性显示屏4发生形变，以降低柔性显示屏4损坏的风险。
应当理解的，为了实现上述电子设备的形态，本申请不限于上文中提到的各种转轴机构1的实施例，只要能实现以下状态的转轴机构1皆可，即：
在电子设备处于展开状态时，转轴机构1、第一壳体2和第二壳体3可共同起到对柔性显示屏4的平整支撑的作用。在电子设备由展开状态到闭合状态的过程中，电子设备的两个壳体可沿相向的方向转动，并带动柔性显示屏4弯折。而在电子设备由闭合状态到展开状态的过程中，电子设备的两个壳体可沿相背的方向转动，并带动柔性显示屏4展开。
以上，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。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (19)

  1. 一种转轴机构，用于可折叠的电子设备，所述转轴机构与所述电子设备的柔性显示屏的可折叠部分相对设置，所述电子设备通过所述转轴机构展开或闭合，其特征在于，所述转轴机构包括基座和转动模组，所述转动模组包括第一转动组件和第二转动组件，所述第一转动组件和所述第二转动组件分设于所述基座的相对的两侧，所述基座背离所述柔性显示屏的一侧包括外观壳，所述外观壳包括相对的第一端和第二端；其中：
    所述第一转动组件包括第一摆臂、第一壳体固定架、第一径向旋臂和第一支撑臂；所述第一摆臂与所述基座转动连接；所述第一支撑臂与所述基座转动连接，所述第一支撑臂与所述第一壳体固定架沿第一方向滑动连接，所述第一支撑臂绕所述基座转动的轴线与所述第一摆臂绕所述基座转动的轴线均平行于所述基座的长度方向且相互不重合，所述第一方向垂直于所述基座的长度方向；所述第一径向旋臂位于所述第一摆臂和所述第一壳体固定架之间，所述第一径向旋臂包括第一连接部、第二连接部和第一避让口，所述第一避让口位于所述第一连接部和所述第二连接部之间，所述第一径向旋臂的背离所述第一避让口的一面为第一连接面，所述第一连接部与所述第一摆臂转动连接，所述第二连接部与所述第一壳体固定架转动连接，所述第一径向旋臂的转动轴线沿所述第一方向延伸；所述外观壳的所述第一端朝向所述第一壳体固定架设置；
    所述第二转动组件包括第二摆臂、第二壳体固定架、第二径向旋臂和第二支撑臂；所述第二摆臂与所述基座转动连接；所述第二支撑臂与所述基座转动连接，所述第二支撑臂与所述第二壳体固定架沿第二方向滑动连接，所述第二支撑臂绕所述基座转动的轴线与所述第二摆臂绕所述基座转动的轴线均平行于所述基座的长度方向且相互不重合，所述第二方向垂直于所述基座的长度方向；所述第二径向旋臂位于所述第二摆臂和所述第二壳体固定架之间，所述第二径向旋臂包括第三连接部、第四连接部和第二避让口，所述第二避让口位于所述第三连接部和所述第四连接部之间，所述第二径向旋臂的背离所述第二避让口的一面为第二连接面，所述第三连接部与所述第二摆臂转动连接，所述第四连接部与所述第二壳体固定架转动连接，所述第二径向旋臂的转动轴线沿所述第二方向延伸；所述外观壳的第二端朝向所述第二壳体固定架设置；
    在所述电子设备处于展开状态时，所述外观壳的所述第一端插设于所述第一避让口，所述外观壳的所述第二端插设于所述第二避让口；在所述电子设备由所述展开状态切换至闭合状态的过程中，所述第一壳体固定架相对所述第一支撑臂沿远离所述基座的方向滑动，所述第二壳体固定架相对所述第二支撑臂沿远离所述基座的方向滑动，所述第一支撑臂绕所述基座转动带动所述第一径向旋臂绕所述第一方向旋转，所述第二支撑臂绕所述基座转动带动所述第二径向旋臂绕所述第二方向旋转，以使所述电子设备处于闭合状态时，所述第一径向旋臂的第一连接面不朝向所述柔性显示屏，所述第二径向旋臂的第二连接面不朝向所述柔性显示屏。
  2. 如权利要求1所述的转轴机构，其特征在于，所述第一径向旋臂还包括第一避让部，所述第一避让部位于所述第一连接部和所述第二连接部之间，且所述第一连接部和所述第二连接部通过所述第一避让部连接；所述第一避让部与所述第一避让口相背设置，所述第一连接面为所述第一避让部的背离所述第一避让口的表面；
    所述第二径向旋臂还包括第二避让部，所述第二避让部位于所述第三连接部和所述第四连接部之间，且所述第三连接部和所述第四连接部通过所述第二避让部连接；所述第二避让部与所述第二避让口相背设置，所述第二连接面为所述第二避让部的背离所述第二避让口的表面。
  3. 如权利要求1或2所述的转轴机构，其特征在于，所述第一连接部通过第一转轴与所述第一摆臂转动连接，所述第二连接部通过第二转轴与所述第一壳体固定架转动连接，所述第一转轴的轴线沿所述第一方向延伸，所述第二转轴的轴线沿所述第一方向延伸；
    所述第三连接部通过第三转轴与所述第二摆臂转动连接，所述第四连接部通过第四转轴与所述第二壳体固定架转动连接，所述第三转轴的轴线沿所述第二方向延伸，所述第四转轴的轴线沿所述第二方向延伸。
  4. 如权利要求3所述的转轴机构，其特征在于，所述第二连接部开设有第一卡槽，所述第一壳体固定架设置有第一卡接部，所述第一卡接部插设于所述第一卡槽，所述第二转轴穿设于所述第一卡槽的槽壁和所述第一卡接部；
    所述第四连接部开设有第二卡槽，所述第二壳体固定架设置有第二卡接部，所述第二卡接部插设于所述第二卡槽，所述第四转轴穿设于所述第二卡槽的槽壁和所述第二卡接部。
  5. 如权利要求1～4任一项所述的转轴机构，其特征在于，所述第一径向旋臂还包括第一轨迹槽；所述第一支撑臂包括第一导向部，所述第一导向部沿所述第一轨迹槽滑动带动所述第一径向旋臂相对所述第一摆臂转动，以在所述电子设备处于展开状态时，所述第一端插设于所述第一避让口；
    所述第二径向旋臂还包括第二轨迹槽；所述第二支撑臂包括第二导向部，所述第二导向部沿所述第二轨迹槽滑动带动所述第二径向旋臂相对所述第二摆臂转动，以在所述电子设备处于展开状态时，所述第二端插设于所述第二避让口。
  6. 如权利要求5所述的转轴机构，其特征在于，所述第一轨迹槽为螺旋槽，所述第二轨迹槽为螺旋槽。
  7. 如权利要求5或6所述的转轴机构，其特征在于，所述第一连接部设置有第一避让面，所述第三连接部设置有第二避让面；所述电子设备处于闭合状态时，所述第一径向旋臂的所述第一避让面朝向所述柔性显示屏且避让所述柔性显示屏的可折叠部分，所述第二径向旋臂的所述第二避让面朝向所述柔性显示屏且避让所述柔性显示屏的可折叠部分。
  8. 如权利要求7所述的转轴机构，其特征在于，所述第一导向部沿所述第一轨迹槽滑动带动所述第一径向旋臂相对所述第一摆臂转动，以在所述电子设备处于闭合状态时，所述第一避让面朝向所述柔性显示屏且避让所述柔性显示屏的可折叠部分；
    所述第二导向部沿所述第二轨迹槽滑动带动所述第二径向旋臂相对所述第二摆臂转动，以在所述电子设备处于闭合状态时，所述第二避让面朝向所述柔性显示屏且避让所述柔性显示屏的可折叠部分。
  9. 如权利要求7或8所述的转轴机构，其特征在于，所述第一避让面为弧形凹面，所述第二避让面为弧形凹面。
  10. 如权利要求1～9任一项所述的转轴机构，其特征在于，所述基座设置有第一弧形槽和第二弧形槽，所述第一摆臂包括第一弧形转动块，所述第一弧形转动块容置于所述第一弧形槽，且所述第一弧形转动块可沿所述第一弧形槽的槽面滑动；
    所述第二摆臂包括第二弧形转动块，所述第二弧形转动块容置于所述第二弧形槽，且所述第二弧形转动块可沿所述第二弧形槽的槽面滑动。
  11. 如权利要求1～10任一项所述的转轴机构，其特征在于，所述第一壳体固定架设置有第一滑槽，所述第一支撑臂容置于所述第一滑槽，且所述第一支撑臂可在第一滑槽内沿所述第一方向滑动；
    所述第二壳体固定架设置有第二滑槽，所述第二支撑臂容置于所述第二滑槽，且所述第二支撑臂可在第二滑槽内沿所述第二方向滑动。
  12. 如权利要求11所述的转轴机构，其特征在于，所述第一壳体固定架还包括第一安装槽，所述第一安装槽的槽壁开设有第一缺口，所述第一安装槽与所述第一滑槽通过所述第一缺口连通；所述转轴机构还包括第一阻尼模块，所述第一阻尼模块包括第一弹性件和第一阻尼支架，所述第一阻尼支架包括第一凸起，所述第一阻尼支架安装于所述第一安装槽，且在所述第一弹性件的弹性力作用下，所述第一凸起可沿所述第一缺口滑动并伸入至所述第一滑槽；所述第一支撑臂的朝向所述第一安装槽的表面还设置有第二凸起，当所述第一凸起伸入至所述第一滑槽时，沿所述第一方向，所述第一凸起与所述第二凸起相对的侧面抵接；
    所述第二壳体固定架还包括第二安装槽，所述第二安装槽的槽壁开设有第二缺口，所述第二安装槽与所述第二滑槽通过所述第二缺口连通；所述转轴机构还包括第二阻尼模块，所述第二阻尼模块包括第二弹性件和第二阻尼支架，所述第二阻尼支架包括第三凸起，所述第二阻尼支架安装于所述第二安装槽，且在所述第二弹性件的弹性力作用下，所述第三凸起可沿所述第二缺口滑动并伸入至所述第二滑槽；所述第二支撑臂的朝向所述第二安装槽的表面还设置有第四凸起，当所述第三凸起伸入至所述第二滑槽时，沿所述第二方向，所述第三凸起与所述第四凸起相对的侧面抵接。
  13. 如权利要求12所述的转轴机构，其特征在于，所述第一支撑臂包括两个相对设置的第一连接臂，两个所述第一连接臂与所述第一壳体固定架滑动连接，所述第一阻尼模块位于两个所述第一连接臂之间；
    所述第二支撑臂包括两个相对设置的第二连接臂，两个所述第二连接臂与所述第二壳体固定架滑动连接，所述第二阻尼模块位于两个所述第二连接臂之间。
  14. 如权利要求1～13任一项所述的转轴机构，其特征在于，所述第一转动组件还包括第一支撑板， 所述第一支撑板包括相背设置的第一板面和第二板面，所述第一板面用于支撑所述柔性显示屏，所述第二板面设置有第三轨迹槽，所述第一支撑臂设置有第一导向结构，所述第一导向结构插设于所述第三轨迹槽，且所述第一导向结构可沿所述第三轨迹槽滑动；
    所述第二转动组件还包括第二支撑板，所述第二支撑板包括相背设置的第三板面和第四板面，所述第三板面用于支撑所述柔性显示屏，所述第四板面设置有第四轨迹槽，所述第二支撑臂设置有第二导向结构，所述第二导向结构插设于所述第四轨迹槽，且所述第二导向结构可沿所述第四轨迹槽滑动；
    所述第一壳体固定架和所述第二壳体固定架相向转动时，所述第一壳体固定架带动所述第一支撑臂绕所述基座转动，所述第一导向结构沿所述第三轨迹槽滑动，以带动所述第一支撑板相对所述第一壳体固定架转动，且带动所述第一支撑板的靠近所述基座的一端沿远离所述基座的方向运动；所述第二壳体固定架带动所述第二支撑臂和所述第二摆臂绕所述基座转动，所述第二导向结构沿所述第三轨迹槽滑动，以带动所述第二支撑板相对所述第二壳体固定架转动，且带动第二支撑板的靠近所述基座的一端沿远离所述基座的方向运动，以在所述第一支撑板、所述基座和所述第二支撑板之间形成用于容纳所述柔性显示屏的可弯折部分的容屏空间。
  15. 如权利要求14所述的转轴机构，其特征在于，所述第一壳体固定架还包括第五轨迹槽，所述第一转动组件还包括第三支撑板，所述第三支撑板包括第一滑动部和第一支撑部，所述第一滑动部插设于所述第五轨迹槽，所述第一壳体固定架绕所述基座转动带动所述第三支撑板绕所述基座转动，且所述第一滑动部沿所述第五轨迹槽滑动；所述第一支撑板包括第三滑槽，所述第一支撑部可沿所述第三滑槽滑动，所述第一支撑部包括用于支撑所述柔性显示屏的第五板面；在所述电子设备处于闭合状态时，所述第三支撑板避让所述第一摆臂；在所述电子设备处于展开状态时，所述第三支撑板位于所述第一摆臂的朝向所述柔性显示屏的一侧，且所述第一板面和所述第五板面连接形成用于支撑所述柔性显示屏的支撑面；
    所述第二壳体固定架还包括第六轨迹槽，所述第二转动组件还包括第四支撑板，所述第四支撑板包括第二滑动部和第二支撑部，所述第二滑动部插设于所述第六轨迹槽，所述第二壳体固定架绕所述基座转动带动所述第四支撑板绕所述基座转动，且所述第二滑动部沿所述第六轨迹槽滑动；所述第二支撑板包括第四滑槽，所述第二支撑部可沿所述第四滑槽滑动，所述第二支撑部包括用于支撑所述柔性显示屏的第六板面；在所述电子设备处于闭合状态时，所述第四支撑板避让所述第二摆臂；在所述电子设备处于展开状态时，所述第四支撑板位于所述第二摆臂的朝向所述柔性显示屏的一侧，且所述第三板面和所述第六板面连接形成用于支撑所述柔性显示屏的支撑面。
  16. 如权利要求15所述的转轴机构，其特征在于，所述第五轨迹槽为直线槽，所述第三滑槽为直线槽，所述第一滑动部可在所述第五轨迹槽内相对所述第一壳体固定架沿第三方向滑动，所述第一支撑部可在所述第三滑槽内相对所述第一支撑板沿第四方向滑动，在所述电子设备处于闭合状态时，所述第三方向和所述第四方向之间的夹角大于0°；
    所述第六轨迹槽为直线槽，所述第四滑槽为直线槽，所述第二滑动部可在所述第六轨迹槽内相对所述第二壳体固定架沿第五方向滑动，所述第二支撑部可在第四滑槽内相对所述第二支撑板沿第六方向滑动，在所述电子设备处于闭合状态时，所述第五方向与所述第六方向之间的夹角大于0°。
  17. 如权利要求15或16所述的转轴机构，其特征在于，所述第三支撑板还包括第一抵接部，在所述电子设备处于闭合状态时，所述第一抵接部与所述第一壳体固定架相抵接，所述第一壳体固定架为所述第一抵接部提供沿背离所述基座方向的支撑力；
    所述第四支撑板还包括第二抵接部，在所述电子设备处于闭合状态时，所述第二抵接部与所述第二壳体固定架相抵接，所述第二壳体固定架为所述第二抵接部提供沿背离所述基座的方向的支撑力。
  18. 如权利要求14～17任一项所述的转轴机构，其特征在于，所述基座包括承载面，所述承载面用于支撑所述柔性显示屏，在所述电子设备处于闭合状态时，所述承载面、所述第一支撑面和所述第三支撑面连接形成用于支撑所述柔性显示屏的支撑面。
  19. 一种电子设备，其特征在于，包括第一壳体、第二壳体、柔性显示屏以及如权利要求1～18任一项所述的转轴机构，其中：所述第一壳体和所述第二壳体分设于所述转轴机构的相对的两侧，所述第一壳体固定架与所述第一壳体固定连接，所述第二壳体固定架与所述第二壳体固定连接；
    所述柔性显示屏连续覆盖于所述第一壳体、所述第二壳体和所述转轴机构，且所述柔性显示屏与所述第一壳体和所述第二壳体固定连接。
PCT/CN2024/078535 2023-06-15 2024-02-26 一种转轴机构及电子设备 Ceased WO2024255310A1 (zh)

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