WO2023093215A1 - 转动机构和可折叠终端 - Google Patents

转动机构和可折叠终端 Download PDF

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Publication number
WO2023093215A1
WO2023093215A1 PCT/CN2022/117786 CN2022117786W WO2023093215A1 WO 2023093215 A1 WO2023093215 A1 WO 2023093215A1 CN 2022117786 W CN2022117786 W CN 2022117786W WO 2023093215 A1 WO2023093215 A1 WO 2023093215A1
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WIPO (PCT)
Prior art keywords
arc
arc portion
radius
shaped
axis
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Application number
PCT/CN2022/117786
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English (en)
French (fr)
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WO2023093215A9 (zh
Inventor
郭仁炜
Original Assignee
荣耀终端有限公司
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Application filed by 荣耀终端有限公司 filed Critical 荣耀终端有限公司
Priority to EP22862330.2A priority Critical patent/EP4210305A1/en
Publication of WO2023093215A1 publication Critical patent/WO2023093215A1/zh
Publication of WO2023093215A9 publication Critical patent/WO2023093215A9/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216Foldable in one direction, i.e. using a one degree of freedom hinge
    • H04M1/022The hinge comprising two parallel pivoting axes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00Pivots; Pivotal connections
    • F16C11/04Pivotal connections
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/1613Constructional details or arrangements for portable computers
    • G06F1/1615Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616Constructional 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
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/1613Constructional details or arrangements for portable computers
    • G06F1/1633Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652Details 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
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/1613Constructional details or arrangements for portable computers
    • G06F1/1633Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681Details related solely to hinges
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026Details of the structure or mounting of specific components
    • H04M1/0266Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268Details of the structure or mounting of specific components for a display module assembly including a flexible display panel

Definitions

  • the present application relates to the field of foldable terminals, in particular to a rotating mechanism and a foldable terminal.
  • Foldable terminals are favored by users because of their large screens and easy portability.
  • foldable terminals often use a rotating mechanism to realize folding and unfolding.
  • the existing rotating mechanism tends to pull the display screen during the folding process, causing the display screen to wrinkle under force, and affecting the reliability of the foldable terminal.
  • the present application provides a rotating mechanism and a foldable terminal. During the folding process of the foldable terminal, the pull of the rotating mechanism on the display screen can be reduced, the problem of wrinkling of the display screen under force can be avoided, and the reliability of the foldable terminal can be ensured.
  • the present application provides a rotation mechanism used in a foldable terminal, where the foldable terminal includes a display screen, and the display screen includes a neutral layer.
  • the material of each structural layer is different, and the amount of tensile deformation of each structural layer will also be different.
  • the neutral layer may comprise one or more structural layers.
  • the neutral layer is a layer structure that is neither stretched nor compressed in the display screen, or the neutral layer is a layer structure that has a small amount of tensile deformation and compression deformation in the display screen. layer structure.
  • the rotating mechanism includes a limit base, a first swing arm and a second swing arm.
  • the limiting base is provided with a first arc-shaped groove and a second arc-shaped groove.
  • the first swing arm includes a first rotating shaft part, the first rotating shaft part is slidably installed in the first arc-shaped groove, and can rotate relative to the position-limiting base.
  • the second swing arm includes a second shaft part, the second shaft part is slidably installed in the second arc-shaped slot, and can rotate relative to the position-limiting base. Wherein, the rotation directions of the first rotating shaft part and the second rotating shaft part relative to the limiting base are opposite.
  • the first rotating shaft part rotates clockwise relative to the limiting base
  • the second rotating shaft part rotates counterclockwise relative to the limiting base.
  • the first swing arm and the second swing arm rotate relative to the position-limiting base to be relatively folded.
  • the first shaft part rotates counterclockwise relative to the limit base
  • the second shaft part rotates clockwise relative to the limit base
  • the first swing arm and the second swing arm rotate relative to the limit base to relatively expand .
  • the first shaft portion includes a first arc portion and a second arc portion distributed along the circumferential direction of the first shaft portion, the first arc portion and the second arc portion are fixedly connected, and the axis of the first arc portion
  • the axis centers of the center and the second arc-shaped part are both located in the neutral layer and coincide with each other, and the radius of the first arc-shaped part is different from that of the second arc-shaped part.
  • the rotation mechanism shown in this application When the rotation mechanism shown in this application is used in a foldable terminal, during the folding process of the foldable terminal, since the axis centers of the first arc portion and the axis center of the second arc portion are located on the neutral layer of the display screen, the first When the swing arm rotates relative to the limit base, the rotation center is located at the neutral layer of the display screen, so that the rotation of the first swing arm relative to the limit base can match the change of the neutral layer, so the rotation process of the first swing arm can be Matching with the bending process of the display screen, the pull of the rotating mechanism on the display screen can be reduced, the problem of wrinkling of the display screen due to being pulled can be avoided, and the use reliability of the foldable terminal can be ensured.
  • the difference between the radius of the first arc portion and the radius of the second arc portion is between 0.1 mm and 10 cm, so as to reduce the first arc when the first swing arm rotates relative to the limit base.
  • the magnitude of the curvature change between the curved portion and the second arc portion ensures smooth rotation of the first shaft portion relative to the limiting base.
  • the second shaft portion includes a third arc portion and a fourth arc portion distributed along the circumference of the second shaft portion, the third arc portion is fixedly connected to the fourth arc portion, and the third arc portion
  • the axis center of the arc-shaped part and the axis center of the fourth arc-shaped part are both located in the neutral layer and overlap, and the radius of the third arc-shaped part is different from that of the fourth arc-shaped part.
  • the rotation mechanism shown in this application When the rotation mechanism shown in this application is used in a foldable terminal, during the folding process of the foldable terminal, since the axis centers of the third arc portion and the axis center of the fourth arc portion are located on the neutral layer of the display screen, the second When the swing arm rotates relative to the limit base, the rotation center is located at the neutral layer of the display screen, so that the rotation of the second swing arm relative to the limit base can match the change of the neutral layer, so the rotation process of the second swing arm can be Matching with the bending process of the display screen, the pull of the rotating mechanism on the display screen can be reduced, the problem of wrinkling of the display screen due to being pulled can be avoided, and the use reliability of the foldable terminal can be ensured.
  • the difference between the radius of the third arc portion and the radius of the fourth arc portion is between 0.1 mm and 10 cm, so as to reduce the third arc when the second swing arm rotates relative to the limit base.
  • the magnitude of the curvature change between the arc-shaped part and the fourth arc-shaped part ensures smooth rotation of the second shaft part relative to the limiting base.
  • the first shaft portion further includes a fifth arc portion distributed along the circumference of the first shaft portion, and the fifth arc portion is fixedly connected to the second arc portion away from the first arc portion.
  • the axis of the fifth arc portion coincides with the axis of the second arc portion, and the radius of the fifth arc portion is different from that of the second arc portion.
  • the rotating mechanism shown in this application When the rotating mechanism shown in this application is used for a foldable terminal, during the folding process of the foldable terminal, since the axis of the fifth arc part is located in the neutral layer of the display screen, the first swing arm rotates when it rotates relative to the limit base
  • the center is always located on the neutral layer of the display screen, so that the rotation of the first swing arm relative to the limit base can match the change of the neutral layer, so the rotation process of the first swing arm can match the bending process of the display screen , can reduce the pull of the rotating mechanism on the display screen, avoid the problem of wrinkling of the display screen due to pulling, and ensure the reliability of the foldable terminal.
  • the difference between the radius of the fifth arc portion and the radius of the second arc portion is between 0.1 mm and 10 cm, so that when the first shaft portion rotates relative to the limit base, the fifth arc portion can be reduced.
  • the magnitude of curvature change between the arc portion and the second arc portion ensures smooth rotation of the first shaft portion relative to the position-limiting base.
  • the second shaft portion further includes a sixth arc portion distributed along the circumference of the second shaft portion, the sixth arc portion is fixedly connected to the fourth arc portion, and the axis of the sixth arc portion Coinciding with the axis of the fourth arc portion, the radius of the sixth arc portion is different from that of the fourth arc portion.
  • the rotating mechanism shown in this application When the rotating mechanism shown in this application is used in a foldable terminal, during the folding process of the foldable terminal, since the axis of the sixth arc part is located in the neutral layer of the display screen, the second swing arm rotates when it rotates relative to the limit base
  • the center is always located in the neutral layer of the display screen, so that the rotation of the second swing arm relative to the limit base can match the change of the neutral layer, so the rotation process of the second swing arm can match the bending process of the display screen , can reduce the pull of the rotating mechanism on the display screen, avoid the problem of wrinkling of the display screen due to pulling, and ensure the reliability of the foldable terminal.
  • the difference between the radius of the sixth arc portion and the radius of the fourth arc portion is between 0.1 mm and 10 cm, so that when the second shaft portion rotates relative to the limit base, the sixth arc portion can be reduced.
  • the magnitude of the curvature change between the arc portion and the fourth arc portion ensures smooth rotation of the second shaft portion relative to the position-limiting base.
  • the first swing arm further includes a first swing portion fixedly connected to the first rotating shaft portion, and the first swing portion protrudes relative to the first arc-shaped slot.
  • the first swinging part rotates relative to the limiting base, it drives the first rotating shaft part to slide in the first arc-shaped groove, so as to realize the rotation of the first rotating shaft part relative to the limiting base, and then realize the first swing arm relative to the limiting base rotation.
  • the second swing arm further includes a second swing part fixedly connected to the second rotating shaft part, and the second swing part protrudes relative to the second arc-shaped groove.
  • the second swinging part rotates relative to the position-limiting base, it drives the second shaft part to slide in the second arc-shaped groove to realize the rotation of the second shaft part relative to the position-limiting base, thereby realizing the second swing arm relative to the position-limiting base. seat rotation.
  • the limit base is provided with two first arc-shaped grooves and two second arc-shaped grooves.
  • two first arc-shaped grooves are arranged at intervals
  • two second arc-shaped grooves are arranged at intervals.
  • the rotating mechanism includes two first swing arms and two second swing arms, the two first rotating shafts are respectively slidably installed in the two first arc-shaped slots, and the two second rotating shafts are respectively slidably installed in the two second arc-shaped slots. Shaped groove to improve the rotation stability of the rotating mechanism.
  • the rotating mechanism has a plane of symmetry, and the rotating mechanism is mirror-symmetrical about the plane of symmetry, so as to ensure the rotational stability of the rotating mechanism.
  • the limit base includes a lower limit block and an upper limit block
  • the upper limit block is installed on the lower limit block, and forms a first arc-shaped groove and a second arc-shaped groove surrounded by the lower limit block.
  • the upper limit block and the lower limit block can be integrally formed, or the upper limit block and the lower limit block can be assembled to form an integrated structure, so as to ensure the overall strength of the rotating mechanism.
  • the rotating mechanism further includes a housing, and the position-limiting base, the first swing arm and the second swing arm are installed inside the housing.
  • the present application provides a rotation mechanism used in a foldable terminal, where the foldable terminal includes a display screen, and the display screen includes a neutral layer.
  • the display screen includes multiple structural layers, the materials of each structural layer are different, and the stretchability of each structural layer will also be different.
  • the neutral layer may comprise one or more structural layers.
  • the neutral layer is a layer structure that is neither stretched nor compressed in the display screen, or the neutral layer is a layer that is stretched and compressed less in the display screen structure.
  • the rotating mechanism includes a limit base, a first swing arm and a second swing arm.
  • the limiting base is provided with a first arc-shaped groove and a second arc-shaped groove.
  • the first swing arm includes a first rotating shaft part, the first rotating shaft part is slidably installed in the first arc-shaped groove, and can rotate relative to the position-limiting base.
  • the second swing arm includes a second shaft part, the second shaft part is slidably installed in the second arc-shaped slot, and can rotate relative to the position-limiting base. Wherein, the rotation directions of the first rotating shaft part and the second rotating shaft part relative to the limiting base are opposite.
  • the first shaft portion includes a first arc portion and a second arc portion distributed along the circumferential direction of the first shaft portion, the first arc portion and the second arc portion are fixedly connected, and the axis of the first arc portion The center and the axis center of the second arc-shaped part are both located in the neutral layer and spaced apart from each other.
  • the rotation mechanism shown in this application When the rotation mechanism shown in this application is used in a foldable terminal, during the folding process of the foldable terminal, since the axis centers of the first arc portion and the axis center of the second arc portion are located on the neutral layer of the display screen, the first When the swing arm rotates relative to the limit base, the rotation center is located at the neutral layer of the display screen, so that the rotation of the first swing arm relative to the limit base can match the change of the neutral layer, so the rotation process of the first swing arm can be Matching with the bending process of the display screen, the pull of the rotating mechanism on the display screen can be reduced, the problem of wrinkling of the display screen due to being pulled can be avoided, and the use reliability of the foldable terminal can be ensured.
  • the radius of the first arc portion is the same as the radius of the second arc portion, or the difference between the radius of the first arc portion and the radius of the second arc portion is between 0.1 mm and 10 cm,
  • the magnitude of the curvature change between the first arc part and the second arc part is reduced to ensure smooth rotation of the first rotating shaft part relative to the limiting base.
  • the second shaft portion includes a third arc portion and a fourth arc portion distributed along the circumference of the second shaft portion, the third arc portion is fixedly connected to the fourth arc portion, and the third arc portion Both the axis center of the arc-shaped part and the axis center of the fourth arc-shaped part are located in the neutral layer and are spaced apart from each other.
  • the rotation mechanism shown in this application When the rotation mechanism shown in this application is used in a foldable terminal, during the folding process of the foldable terminal, since the axis centers of the third arc portion and the axis center of the fourth arc portion are located on the neutral layer of the display screen, the second When the swing arm rotates relative to the limit base, the rotation center is located at the neutral layer of the display screen, so that the rotation of the second swing arm relative to the limit base can match the change of the neutral layer, so the rotation process of the second swing arm can be Matching with the bending process of the display screen, the pull of the rotating mechanism on the display screen can be reduced, the problem of wrinkling of the display screen due to being pulled can be avoided, and the use reliability of the foldable terminal can be ensured.
  • the radius of the third arc portion is the same as the radius of the fourth arc portion, or the difference between the radius of the third arc portion and the radius of the fourth arc portion is between 0.1 mm and 10 cm,
  • the magnitude of curvature change between the third arc portion and the fourth arc portion is reduced to ensure smooth rotation of the second shaft portion relative to the limiting base.
  • the first shaft portion further includes a fifth arc portion distributed along the circumference of the first shaft portion, and the fifth arc portion is fixedly connected to the second arc portion away from the first arc portion. At one end, the axis of the fifth arc portion is located in the neutral layer, and is spaced apart from the axis of the second arc portion.
  • the rotating mechanism shown in this application When the rotating mechanism shown in this application is used for a foldable terminal, during the folding process of the foldable terminal, since the axis of the fifth arc part is located in the neutral layer of the display screen, the first swing arm rotates when it rotates relative to the limit base
  • the center is always located on the neutral layer of the display screen, so that the rotation of the first swing arm relative to the limit base can match the change of the neutral layer, so the rotation process of the first swing arm can match the bending process of the display screen , can reduce the pull of the rotating mechanism on the display screen, avoid the problem of wrinkling of the display screen due to pulling, and ensure the reliability of the foldable terminal.
  • the radius of the fifth arc portion is the same as that of the second arc portion, or the radius of the fifth arc portion is different from the radius of the second arc portion, and the radius of the fifth arc portion is the same as that of the second arc portion.
  • the difference between the radii of the second arc portion is between 0.1 mm and 10 cm, so that when the first shaft portion rotates relative to the limit base, the curvature change between the fifth arc portion and the second arc portion can be reduced.
  • the range ensures the smoothness of the rotation of the first rotating shaft relative to the position-limiting base.
  • the second shaft portion further includes a sixth arc portion distributed along the circumference of the second shaft portion, the sixth arc portion is fixedly connected to the fourth arc portion, and the axis of the sixth arc portion It is located in the neutral layer and is spaced apart from the axis center of the fourth arc portion.
  • the rotating mechanism shown in this application When the rotating mechanism shown in this application is used in a foldable terminal, during the folding process of the foldable terminal, since the axis of the sixth arc part is located in the neutral layer of the display screen, the second swing arm rotates when it rotates relative to the limit base
  • the center is always located in the neutral layer of the display screen, so that the rotation of the second swing arm relative to the limit base can match the change of the neutral layer, so the rotation process of the second swing arm can match the bending process of the display screen , can reduce the pull of the rotating mechanism on the display screen, avoid the problem of wrinkling of the display screen due to pulling, and ensure the reliability of the foldable terminal.
  • the radius of the sixth arc portion is the same as that of the fourth arc portion, or the radius of the sixth arc portion is different from the radius of the fourth arc portion, and the radius of the sixth arc portion is the same as that of the fourth arc portion.
  • the difference between the radii of the fourth arc portion is between 0.1 mm and 10 cm, so that when the second shaft portion rotates relative to the limit base, the curvature change between the sixth arc portion and the fourth arc portion can be reduced.
  • the range ensures the smoothness of the rotation of the second rotating shaft relative to the limit base.
  • the first swing arm further includes a first swing portion fixedly connected to the first rotating shaft portion, and the first swing portion protrudes relative to the first arc-shaped slot.
  • the first swinging part rotates relative to the limiting base, it drives the first rotating shaft part to slide in the first arc-shaped groove, so as to realize the rotation of the first rotating shaft part relative to the limiting base, and then realize the first swing arm relative to the limiting base rotation.
  • the second swing arm further includes a second swing part fixedly connected to the second rotating shaft part, and the second swing part protrudes relative to the second arc-shaped slot.
  • the second swinging part rotates relative to the position-limiting base, it drives the second shaft part to slide in the second arc-shaped groove to realize the rotation of the second shaft part relative to the position-limiting base, thereby realizing the second swing arm relative to the position-limiting base. seat rotation.
  • the limit base is provided with two first arc-shaped grooves and two second arc-shaped grooves.
  • two first arc-shaped grooves are arranged at intervals
  • two second arc-shaped grooves are arranged at intervals.
  • the rotating mechanism includes two first swing arms and two second swing arms, the two first rotating shafts are respectively slidably installed in the two first arc-shaped slots, and the two second rotating shafts are respectively slidably installed in the two second arc-shaped slots. Shaped groove to improve the rotation stability of the rotating mechanism.
  • the rotating mechanism has a plane of symmetry, and the rotating mechanism is mirror-symmetrical about the plane of symmetry, so as to ensure the rotational stability of the rotating mechanism.
  • the limit base includes a lower limit block and an upper limit block
  • the upper limit block is installed on the lower limit block, and forms a first arc-shaped groove and a second arc-shaped groove surrounded by the lower limit block.
  • the upper limit block and the lower limit block can be integrally formed, or the upper limit block and the lower limit block can be assembled to form an integrated structure, so as to ensure the overall strength of the rotating mechanism.
  • the rotating mechanism further includes a housing, and the position-limiting base, the first swing arm and the second swing arm are installed inside the housing.
  • the present application provides a rotation mechanism used in a foldable terminal.
  • the foldable terminal includes a display screen, and the display screen includes a first structural layer and a second structural layer arranged in layers. During the folding process of the foldable terminal, the tensile deformation of the first structural layer is greater than the tensile deformation of the second structural layer.
  • the rotating mechanism includes a limit base, a first swing arm and a second swing arm.
  • the limiting base is provided with a first arc-shaped groove and a second arc-shaped groove.
  • the first swing arm includes a first rotating shaft part, the first rotating shaft part is slidably installed in the first arc-shaped groove, and can rotate relative to the position-limiting base.
  • the second swing arm includes a second shaft part, the second shaft part is slidably installed in the second arc-shaped slot, and can rotate relative to the position-limiting base. Wherein, the rotation directions of the first rotating shaft part and the second rotating shaft part relative to the limiting base are opposite.
  • the first shaft portion includes a first arc portion and a second arc portion distributed along the circumferential direction of the first shaft portion, the first arc portion and the second arc portion are fixedly connected, and the axis of the first arc portion The center is located in the first structural layer, the axis of the second arc-shaped part is located in the second structural layer, and is located on the side of the axis of the first arc-shaped part away from the second swing arm.
  • the rotation mechanism shown in this application is used in a foldable terminal, during the folding process of the foldable terminal, since the axis of the first arc-shaped part is located in the first structural layer, the axis of the second arc-shaped part is located in the second structural layer and located on the side where the axis center of the first arc-shaped part is away from the second swing arm, the tensile deformation of the first structural layer can be reduced to match the tensile deformation of the second structural layer, so the second structural layer can be improved.
  • the degree of matching between the first structural layer and the second structural layer enables the rotation process of the first swing arm relative to the limit base to match the bending process of the display screen 200, which can reduce the pulling of the display screen by the rotating mechanism and avoid The problem of wrinkling of the display screen due to pulling ensures the reliability of the foldable terminal.
  • the radius of the first arc portion is the same as the radius of the second arc portion, or the radius of the first arc portion is different from the radius of the second arc portion, and the radius of the first arc portion is the same as that of the second arc portion.
  • the difference between the radii of the second arc portion is between 0.1 mm and 10 cm, so as to reduce the magnitude of curvature change between the first arc portion and the second arc portion when the first rotating shaft portion rotates relative to the limit base , to ensure smooth rotation of the first shaft portion relative to the limit base.
  • the second shaft portion includes a third arc portion and a fourth arc portion distributed along the circumference of the second shaft portion, the third arc portion is fixedly connected to the fourth arc portion, and the third arc portion
  • the axis of the arc-shaped part is located in the first structure layer
  • the axis of the fourth arc-shaped part is located in the second structure layer
  • the axis of the third arc-shaped part is located on the side away from the first swing arm.
  • the rotation mechanism shown in this application is used in a foldable terminal, during the folding process of the foldable terminal, since the axis of the third arc-shaped part is located in the first structural layer, the axis of the fourth arc-shaped part is located in the second structural layer and located on the side where the axis of the third arc portion is away from the first swing arm, the tensile deformation of the first structural layer can be reduced to match the tensile deformation of the second structural layer, thus improving the
  • the degree of matching between the first structural layer and the second structural layer makes the rotation process of the second swing arm relative to the limit base match the bending process of the display screen, which can reduce the impact on the first swing arm during the rotation process.
  • the transitional pulling of the structural layer further reduces the pulling of the display screen by the rotating mechanism, avoids the problem of wrinkling of the display screen due to pulling, and ensures the reliability of the foldable terminal.
  • the radius of the third arc portion is the same as the radius of the fourth arc portion, or the difference between the radius of the third arc portion and the radius of the fourth arc portion is between 0.1 mm and 10 cm,
  • the magnitude of curvature change between the third arc portion and the fourth arc portion is reduced to ensure smooth rotation of the second shaft portion relative to the limiting base.
  • the display screen further includes a third structural layer, the third structural layer, the first structural layer, and the second structural layer are stacked, and during the folding process of the foldable terminal, the tensile deformation of the third structural layer is less than The tensile deformation of the second structural layer.
  • the first shaft portion further includes a fifth arc portion distributed along the circumference of the first shaft portion, the fifth arc portion is fixedly connected to an end of the second arc portion away from the first arc portion, and the fifth arc portion is The axis of the part is located on the third structural layer, and the axis of the second arc part is located on the side away from the second swing arm.
  • the rotation mechanism shown in this application When the rotation mechanism shown in this application is used in a foldable terminal, during the folding process of the foldable terminal, since the axis of the fifth arc-shaped part is located in the third structural layer, and the axis of the second arc-shaped part is far away from the second On one side of the swing arm, the tensile deformation of the first structural layer and the second structural layer can be reduced to match the tensile deformation of the third structural layer, so that the first structural layer, the second structural layer and the The degree of matching between the third structural layers makes the rotation process of the first swing arm relative to the limit base match the bending process of the display screen, which can reduce the pulling of the display screen by the rotating mechanism and prevent the display screen from being pulled The problem of wrinkles occurs, ensuring the reliability of the foldable terminal.
  • the radius of the fifth arc portion is the same as that of the second arc portion, or the radius of the fifth arc portion is different from the radius of the second arc portion, and the radius of the fifth arc portion is the same as that of the second arc portion.
  • the difference between the radii of the second arc portion is between 0.1 mm and 10 cm, so that when the first shaft portion rotates relative to the limit base, the curvature change between the fifth arc portion and the second arc portion can be reduced.
  • the range ensures the smoothness of the rotation of the first rotating shaft relative to the position-limiting base.
  • the second shaft portion further includes a sixth arc portion distributed along the circumference of the second shaft portion, the sixth arc portion is fixedly connected to the fourth arc portion, and the axis of the sixth arc portion It is located in the third structural layer and located on the side where the axis center of the fourth arc-shaped portion is away from the first swing arm.
  • the rotation mechanism shown in this application is used for a foldable terminal
  • the axis of the sixth arc portion is located in the third structural layer, and the axis of the fourth arc portion is far away from the first
  • the tensile deformation of the first structural layer and the second structural layer can be reduced to match the tensile deformation of the third structural layer, so that the first structural layer, the second structural layer and the
  • the degree of matching between the third structural layers makes the rotation process of the second swing arm relative to the limit base match the bending process of the display screen, which can reduce the pulling of the display screen by the rotating mechanism and prevent the display screen from being pulled.
  • the problem of wrinkles occurs, ensuring the reliability of the foldable terminal.
  • the radius of the sixth arc portion is the same as that of the fourth arc portion, or the radius of the sixth arc portion is different from the radius of the fourth arc portion, and the radius of the sixth arc portion is the same as that of the fourth arc portion.
  • the difference between the radii of the fourth arc portion is between 0.1 mm and 10 cm, so that when the second shaft portion rotates relative to the limit base, the curvature change between the sixth arc portion and the fourth arc portion can be reduced.
  • the range ensures the smoothness of the rotation of the second rotating shaft relative to the limit base.
  • the first swing arm further includes a first swing portion fixedly connected to the first rotating shaft portion, and the first swing portion protrudes relative to the first arc-shaped slot.
  • the first swinging part rotates relative to the limiting base, it drives the first rotating shaft part to slide in the first arc-shaped groove, so as to realize the rotation of the first rotating shaft part relative to the limiting base, and then realize the first swing arm relative to the limiting base rotation.
  • the second swing arm further includes a second swing part fixedly connected to the second rotating shaft part, and the second swing part protrudes relative to the second arc-shaped groove.
  • the second swinging part rotates relative to the position-limiting base, it drives the second shaft part to slide in the second arc-shaped groove to realize the rotation of the second shaft part relative to the position-limiting base, thereby realizing the second swing arm relative to the position-limiting base. seat rotation.
  • the limit base is provided with two first arc-shaped grooves and two second arc-shaped grooves.
  • two first arc-shaped grooves are arranged at intervals
  • two second arc-shaped grooves are arranged at intervals.
  • the rotating mechanism includes two first swing arms and two second swing arms, the two first rotating shafts are respectively slidably installed in the two first arc-shaped slots, and the two second rotating shafts are respectively slidably installed in the two second arc-shaped slots. Shaped groove to improve the rotation stability of the rotating mechanism.
  • the rotating mechanism has a plane of symmetry, and the rotating mechanism is mirror-symmetrical about the plane of symmetry, so as to ensure the rotational stability of the rotating mechanism.
  • the limit base includes a lower limit block and an upper limit block
  • the upper limit block is installed on the lower limit block, and forms a first arc-shaped groove and a second arc-shaped groove surrounded by the lower limit block.
  • the upper limit block and the lower limit block can be integrally formed, or the upper limit block and the lower limit block can be assembled to form an integrated structure, so as to ensure the overall strength of the rotating mechanism.
  • the rotating mechanism further includes a housing, and the position-limiting base, the first swing arm and the second swing arm are installed inside the housing.
  • the present application provides a foldable terminal, including a first housing, a second housing, a display screen, and any of the rotating mechanisms shown in the first or second aspect above, and the first swing arm is fixedly connected to The first casing, the second swing arm is fixedly connected to the second casing, the display screen includes a neutral layer, and the axes of the first arc portion and the second arc portion are located in the neutral layer and coincide with each other , the radius of the first arcuate portion is different from the radius of the second arcuate portion.
  • first swing part is fixedly connected to the first casing
  • second swing part is fixedly connected to the second casing
  • the display screen includes multiple structural layers, and the neutral layer includes one or more structural layers.
  • the display screen includes a base layer, a display function layer, a polarizer, an adhesive layer, and a protective layer, and the display function layer, polarizer, adhesive layer, and protective layer are sequentially stacked on the top surface of the base layer.
  • the neutral layer includes a display function layer, and the axes of the first arc portion and the second arc portion are located on the display function layer, so as to prevent the display function layer from being damaged during the folding process of the foldable terminal. Splitting by excessive pulling ensures the reliability of the foldable terminal.
  • the neutral layer includes a polarizer, and the axes of the first arc-shaped portion and the axis of the second arc-shaped portion are located inside the polarizer.
  • the neutral layer includes a display function layer and a polarizer, and the axes of the first arc portion and the second arc portion are located in the display function layer or the polarizer.
  • the display screen includes a first display part, a second display part and a bendable part, the bendable part is connected between the first display part and the second display part, and the first display part is installed on the first display part.
  • the present application provides a foldable terminal, including a first housing, a second housing, a display screen, and any rotating mechanism shown in the third aspect above.
  • the first swing arm is fixedly connected to the first casing
  • the second swing arm is fixedly connected to the second casing.
  • the first swing part is fixedly connected to the first casing
  • the second swing part is fixedly connected to the second casing.
  • the display screen is installed on the first casing and the second casing, and the display screen includes a first structural layer and a second structural layer.
  • the axis of the first arc-shaped part is located in the first structural layer
  • the axis of the second arc-shaped part is located in the second structural layer and located in the first arc-shaped part
  • the axis of the axis is away from the side of the second swing arm, the tensile deformation of the first structural layer can be reduced to match the tensile deformation of the second structural layer, so the relationship between the first structural layer and the second structural layer can be improved.
  • the degree of matching between them reduces the transitional pull of the first structural layer during the rotation of the first swing arm, reduces the pull of the rotating mechanism on the display screen, avoids the problem of wrinkling of the display screen due to pulling, and ensures the reliable use of foldable terminals sex.
  • the display screen further includes a third structural layer, the third structural layer, the first structural layer and the second structural layer are stacked, and during the folding process of the foldable terminal, the tensile deformation of the third structural layer is less than The tensile deformation of the second structural layer.
  • the first shaft portion also includes a fifth arc portion distributed along the circumference of the first shaft portion, the fifth arc portion is fixedly connected to an end of the second arc portion away from the first arc portion, and the fifth arc portion
  • the axis is located in the third structural layer, and is located on the side of the axis of the second arc portion away from the second swing arm.
  • the first structure The tensile deformation of the ply and the second structural layer can be reduced to match the tensile deformation of the third structural layer, thereby improving the matching between the first structural layer, the second structural layer and the third structural layer , so that the rotation process of the first swing arm relative to the limit base can match the bending process of the display screen, which can reduce the pull of the rotating mechanism on the display screen, avoid the problem of wrinkling of the display screen due to pulling, and ensure that the foldable terminal use reliability.
  • the display screen includes a base layer, a display function layer, a polarizer, an adhesive layer and a protective layer stacked in sequence, the base layer is the first structural layer, the display function layer is the second structural layer, and the polarizer is the second structural layer.
  • the base layer is the first structural layer
  • the display function layer is the second structural layer
  • the polarizer is the second structural layer.
  • the display screen includes a first display part, a second display part and a bendable part, the bendable part is connected between the first display part and the second display part, and the first display part is installed on the first display part.
  • FIG. 1 is a schematic structural diagram of a foldable terminal provided in an embodiment of the present application in a first state
  • FIG. 2 is a schematic structural diagram of the foldable terminal shown in FIG. 1 in a second state
  • Fig. 3 is a schematic diagram of an exploded structure of the foldable terminal shown in Fig. 2;
  • Fig. 4 is a schematic cross-sectional structure diagram of the display screen cut along I-I in the foldable terminal shown in Fig. 3;
  • FIG. 5 is a schematic structural diagram of a rotating mechanism in the foldable terminal shown in FIG. 3;
  • Fig. 6 is a schematic cross-sectional structure diagram of the rotating mechanism shown in Fig. 5 cut along II-II;
  • Fig. 7 is a schematic cross-sectional structure diagram of the foldable terminal shown in Fig. 2 cut along III-III;
  • FIG. 8 is a schematic structural diagram of a first swing arm of the foldable terminal shown in FIG. 7 in a first implementation manner
  • FIG. 9 is a schematic diagram of a partial structure of the foldable terminal shown in FIG. 7 in a first implementation manner
  • FIG. 10 is a schematic diagram of a partial structure of the foldable terminal shown in FIG. 7 in a second implementation manner
  • Fig. 11 is a schematic diagram of a partial structure of the foldable terminal shown in Fig. 7 in a third embodiment
  • FIG. 12 is a schematic diagram of a partial structure of the foldable terminal shown in FIG. 7 in a fourth implementation manner.
  • Figure 1 is a schematic structural diagram of a foldable terminal 1000 in the first state provided by the embodiment of the present application
  • Figure 2 is a schematic diagram of the foldable terminal 1000 shown in Figure 1 in the second state Schematic diagram of the structure.
  • the width direction of the foldable terminal 1000 shown in FIG. the Y-axis direction and the Z-axis direction are perpendicular to each other.
  • the foldable terminal 1000 may be a foldable electronic product such as a mobile phone, a tablet computer, a personal computer, a multimedia player, an e-book reader, a notebook computer, a vehicle-mounted device, or a wearable device.
  • the foldable terminal 1000 is a foldable mobile phone. That is, the foldable terminal 1000 is a mobile phone that can be switched between a folded state and an unfolded state.
  • the foldable terminal 1000 can be folded or unfolded along the X-axis direction as an example for illustration.
  • the foldable terminal 1000 shown in FIG. 1 is in a folded state, and the foldable terminal 1000 shown in FIG. 2 is in an unfolded state.
  • the unfolding angle ⁇ of the foldable terminal 1000 shown in FIG. 2 is 180 degrees. That is, the foldable terminal 1000 shown in FIG. 2 is in a flattened state.
  • the unfolding angle ⁇ of the foldable terminal 1000 shown in FIG. 2 is 180 degrees means that ⁇ may be 180 degrees or about 180 degrees, such as 170 degrees, 175 degrees, 185 degrees and 190 degrees.
  • the angles described in the following examples can be understood in the same way.
  • the foldable terminal 1000 shown in the embodiment of the present application is a terminal that can be folded once.
  • the foldable terminal 1000 may also be a terminal that can be folded multiple times (more than twice).
  • the foldable terminal 1000 may include a plurality of parts, two adjacent parts can be folded relatively close to the foldable terminal 1000 in the folded state, and two adjacent parts can be unfolded relatively apart until the foldable terminal 1000 is in the unfolded state.
  • FIG. 3 is a schematic diagram of an exploded structure of the foldable terminal 1000 shown in FIG. 2 .
  • the foldable terminal 1000 includes a foldable device 100 and a display screen 200 .
  • the display screen 200 is installed on the foldable device 100 and is used to display information such as text, image or video.
  • the display screen 200 includes a first display part 210 , a second display part 220 and a bendable part 230 , and the bendable part 230 is connected between the first display part 210 and the second display part 220 .
  • the bendable portion 230 can be bent along the X-axis direction.
  • the foldable terminal 1000 when the foldable terminal 1000 is in a folded state, the first display portion 210 and the second display portion 220 are disposed opposite to each other, and the bendable portion 230 is bent. At this time, the display screen 200 is in a folded state, and the exposed area of the display screen 200 is relatively small, which can greatly reduce the probability of the display screen 200 being damaged, and realize effective protection for the display screen 200 .
  • the foldable terminal 1000 is in an unfolded state, the first display portion 210 and the second display portion 220 are relatively unfolded, and the bendable portion 230 is flattened without being bent.
  • the included angles between the first display part 210, the second display part 220 and the bendable part 230 are all ⁇ , and the display screen 200 has a large display area, which realizes the large-screen display of the foldable terminal 1000 and improves the User experience.
  • the foldable device 100 includes a first housing 110, a second housing 120, and a rotating mechanism 130.
  • the rotating mechanism 130 is connected between the first housing 110 and the second housing 120 to realize the first housing The rotation connection between the body 110 and the second housing 120.
  • the first housing 110 carries the first display part 210
  • the second housing 120 carries the second display part 220 .
  • the first display part 210 is installed on the first housing 110
  • the second display part 220 is installed on the second housing 120
  • the rotating mechanism 130 is disposed opposite to the bendable portion 230 .
  • the first housing 110 and the second housing 120 can be relatively rotated by the rotating mechanism 130 , so that the foldable device 100 can switch between the folded state and the unfolded state. Specifically, the first housing 110 and the second housing 120 can be rotated relative to each other so that the foldable device 100 is in a folded state, as shown in FIG. 1 . The first housing 110 and the second housing 120 can also be rotated relative to each other so that the foldable device 100 is in an unfolded state, as shown in FIG. 2 . Exemplarily, the foldable terminal 1000 shown in FIG. 2 is in an unfolded state, and the angle between the first housing 110 and the second housing 120 is ⁇ .
  • the first housing 110 is provided with a first receiving groove 1101 , and the first receiving groove 1101 is located on a side of the first housing 110 facing the second housing 120 .
  • the opening of the first receiving groove 1101 is located on the top surface of the first casing 110 .
  • the first receiving groove 1101 is recessed from the top to the bottom of the first casing 110 , and penetrates through the side of the first casing 110 facing the second casing 120 .
  • the first step 1102 protrudes from the bottom wall of the first receiving groove 1101 , and the stepped surface of the first step 1102 is located between the top surface of the first casing 110 and the bottom wall of the first receiving groove 1101 .
  • the second housing 120 has the same structure as the first housing 110 , and is mirror-symmetrical with respect to the rotating mechanism 130 .
  • the second housing 120 is provided with a second receiving groove 1201 , and the second receiving groove 1201 is located on a side of the second housing 120 facing the first housing 110 .
  • the opening of the second receiving groove 1201 is located on the top surface of the second casing 120 .
  • the second receiving groove 1201 is recessed from the top to the bottom of the second housing 120 , and penetrates through the side of the second housing 120 facing the first housing 110 .
  • the second step 1202 protrudes from the bottom wall of the second receiving groove 1201 , and the stepped surface of the second step 1202 is located between the top surface of the second housing 120 and the bottom wall of the second receiving groove 1201 .
  • the first receiving groove 1101 and the second receiving groove 1201 enclose A storage space 1001 is formed, and the storage space 1001 accommodates the rotation mechanism 130 .
  • orientation words such as “top” and “bottom” used in the embodiment of the present application to describe the foldable terminal 1000 are mainly based on the display orientation of the foldable terminal 1000 in FIG.
  • the direction is “top”
  • the negative direction toward the Z axis is “bottom” which does not form a limitation on the orientation of the foldable terminal 1000 in an actual application scene.
  • FIG. 4 is a schematic cross-sectional structure diagram of the display screen 200 taken along I-I in the foldable terminal 1000 shown in FIG. 3 .
  • cut along I-I refers to cutting along the plane where the I-I line is located, and the description of the accompanying drawings can be understood in the same way.
  • the display screen 200 includes five structural layers, and the five structural layers are stacked.
  • the five structural layers are respectively the first structural layer 240, the second structural layer 250, the third structural layer 260, the fourth structural layer 270 and the fifth structural layer 280, the second structural layer 250, the third structural layer 260, The fourth structural layer 270 and the fifth structural layer 280 are sequentially stacked on the top surface of the first structural layer 240 .
  • the display screen 200 may also include two, three, four or more than five structural layers, which is not specifically limited in this application.
  • the first structural layer 240 is a base layer
  • the second structural layer 250 is a display function layer
  • the third structural layer 260 is a polarizer
  • the fourth structural layer 270 is an adhesive layer
  • the fifth structural layer 280 is a protective layer.
  • the base layer is a structural layer having a supporting function in the display screen 200 .
  • the base layer may be a steel sheet base.
  • the base layer may include one or more support structure layers (not shown), and each support structure layer may be made of foam, polyimide (PI, polyimide) or metal bamboo, etc. , so that the base layer has a certain strength and rigidity to support the display function layer.
  • the display function layer is a structural layer having a display function in the display screen 200 .
  • the polarizer is stacked on the top surface of the display function layer. Since the materials of the base layer, the display function layer and the polarizer are all different, during the folding process of the foldable terminal 1000 , the tensile deformation of the base layer, the display function layer and the polarizer are all different. Wherein, the tensile deformation of the base layer is greater than that of the display function layer, and the tensile deformation of the display function layer is greater than that of the polarizer. That is, the tensile deformation of the first structural layer 240 is greater than that of the second structural layer 250 , and the tensile deformation of the second structural layer 250 is greater than that of the third structural layer 260 .
  • the protective layer is a structural layer in the display screen 200 having a protective function.
  • the protective layer is located on the top side of the polarizer, and the adhesive layer is connected between the protective layer and the polarizer.
  • the protection layer can protect the display function layer.
  • the adhesive layer can be double-sided tape, the top surface of the adhesive layer is bonded to the bottom surface of the protective layer, and the bottom surface of the adhesive layer is bonded to the top surface of the polarizer.
  • the display screen 200 includes a neutral layer 200a, and the neutral layer 200a may include one or more structural layers.
  • the neutral layer 200 a includes a third structural layer 260 .
  • the neutral layer 200 a may also include the second structural layer 250 , or the neutral layer 200 a may also include the second structural layer 250 and the third structural layer 260 .
  • the display screen 200 is a multi-layer laminated structure, and the materials of each structural layer are different, the tensile deformation of each structural layer will also be different.
  • the neutral layer 200a is a layer structure that will neither be stretched nor compressed in the display screen 200, or the neutral layer 200a can also be a stretched shape in the display screen 200. Layer structure with small variable and compressive deformation.
  • FIG. 5 is a schematic structural diagram of the rotating mechanism 130 in the foldable terminal 1000 shown in FIG. 3
  • FIG. 6 is a schematic cross-sectional structural diagram of the rotating mechanism 130 shown in FIG.
  • the rotation mechanism 130 has a symmetry plane O, and the rotation mechanism 130 is mirror-symmetric about the symmetry plane O, so as to ensure the rotation stability of the rotation mechanism 130 .
  • the rotating mechanism 130 may not have the symmetry plane O, and this application does not specifically limit whether the rotating mechanism 130 has symmetry.
  • the rotating mechanism 130 includes a housing 10 , a limit base 20 , a first swing arm 30 and a second swing arm 40 .
  • the position-limiting base 20 , the first swing arm 30 and the second swing arm 40 are installed inside the housing 10 .
  • the limiting base 20 is provided with a first arc-shaped groove 201 and a second arc-shaped groove 202 .
  • the first swing arm 30 is slidably installed in the first arc-shaped slot 201 and can rotate relative to the limiting base 20 .
  • the second swing arm 40 is slidably installed in the second arc-shaped slot 202 and can rotate relative to the limiting base 20 .
  • the rotation directions of the first swing arm 30 and the second swing arm 40 relative to the limiting base 20 are opposite.
  • the first swing arm 30 rotates clockwise (the direction ⁇ 1 in the figure) relative to the limit base 20
  • the second swing arm 40 rotates counterclockwise (the direction ⁇ 2 in the figure) relative to the limit base 20 turn.
  • the first swing arm 30 and the second swing arm 40 are rotated relative to the limiting base 20 to be relatively folded.
  • the first swing arm 30 rotates counterclockwise relative to the limit base 20
  • the second swing arm 40 rotates clockwise relative to the limit base 20 .
  • the first swing arm 30 and the second swing arm 40 are rotated relative to the position-limiting base 20 to be relatively deployed.
  • the limiting base 20 is provided with two first arc-shaped grooves 201 and two second arc-shaped grooves 202 .
  • the rotating mechanism 130 includes two first swing arms 30 and two second swing arms 40 .
  • the two first arc-shaped grooves 201 are arranged at intervals along the Y-axis direction
  • the two second arc-shaped grooves 202 are arranged at intervals along the Y-axis direction.
  • the two first swing arms 30 are respectively slidably installed in the two first arc-shaped slots 201 and arranged at intervals along the Y-axis direction.
  • the two second swing arms 40 are respectively slidably installed in the two second arc-shaped slots 202 and arranged at intervals along the Y-axis direction.
  • the limit base 20 includes a lower limit block 21 and an upper limit block 22, the upper limit block 22 is installed on the lower limit block 21, and forms a first arc-shaped groove 201 and a second arc-shaped groove 201 surrounded by the lower limit block 21.
  • the lower limit block 21 includes a first lower limit block 23 and a second lower limit block 24 .
  • the first lower limit block 23 and the second lower limit block 24 are arranged at intervals with each other.
  • the upper limit block 22 includes a first upper limit block 25 and a second upper limit block 26 .
  • the first upper limit block 25 is mounted on the first lower limit block 23 and surrounds the first lower limit block 23 to form a first arc-shaped groove 201 .
  • the second upper limit block 26 is mounted on the second lower limit block 24 and surrounds the second lower limit block 24 to form a second arc-shaped groove 202 .
  • the first arc-shaped grooves 201 and the second arc-shaped grooves 202 are arranged at intervals from each other.
  • the first arc-shaped slots 201 and the second arc-shaped slots 202 are all overlapped and arranged.
  • the overlapping arrangement refers to overlapping projections.
  • the first arc-shaped groove 201 and the second arc-shaped groove 202 are all overlapped, which means that the projections of the first arc-shaped groove 201 and the second arc-shaped groove 202 on the Y-Z axis plane are all overlapped .
  • the overlapping arrangement mentioned later can be understood in the same way.
  • the first arc-shaped groove 201 and the second arc-shaped groove 202 may also be arranged overlappingly, so as to reduce the size of the rotating mechanism 130 along the X-axis direction.
  • the first arc-shaped grooves 201 and the second arc-shaped grooves 202 may also be arranged at intervals from each other.
  • the first lower limiting block 23 is provided with a first sliding slot 231 , and the opening of the first sliding slot 231 is located on the top surface of the first lower limiting block 23 .
  • the first sliding slot 231 is recessed from the top to the bottom of the first lower limiting block 23 .
  • the first chute 231 is an arc-shaped chute, and the groove bottom wall of the first chute 231 is an arc-shaped surface.
  • there are two first sliding slots 231 and the two first sliding slots 231 are arranged at intervals along the Y-axis direction.
  • the first upper limit block 25 is installed on the top side of the first slide slot 231 .
  • the bottom surface of the first upper limit block 25 is an arc-shaped surface matched with the groove bottom wall of the first chute 231, so that the first upper limit block 25 and the first limit block 11 enclose the first arc-shaped groove 201 .
  • the axis of the bottom surface of the first upper limit block 25 coincides with the axis of the groove bottom wall of the first sliding groove 231 .
  • there are two first upper limit blocks 25 and the two first upper limit blocks 25 are arranged at intervals along the Y-axis direction.
  • the two first upper limit blocks 25 are respectively mounted on the top sides of the two first sliding slots 231 , and respectively surround the two first sliding slots 231 to form two first arc-shaped slots 201 .
  • the two first upper limit blocks 25 can be integrally formed with the first lower limit block 23, or the two first upper limit blocks 25 can be assembled with the first lower limit block 23 An integrated structure is formed to enhance the overall strength of the rotating mechanism 130 .
  • the second lower limiting block 24 is provided with a second sliding slot 241 , and the opening of the second sliding slot 241 is located on the top surface of the second lower limiting block 24 .
  • the second slide slot 241 is recessed from the top to the bottom of the second lower limiting block 24 .
  • the second chute 241 is an arc-shaped chute, and the bottom wall of the second chute 241 is an arc-shaped surface.
  • there are two second sliding slots 241 and the two second sliding slots 241 are arranged at intervals along the Y-axis direction.
  • the second upper limit block 26 is installed on the top side of the second slide slot 241 .
  • the bottom surface of the second upper limit block 26 is an arc-shaped surface matched with the groove bottom wall of the second chute 241, so that the second upper limit block 26 and the second lower limit block 24 enclose the second arc-shaped groove 202 .
  • the axis of the bottom surface of the second upper limit block 26 coincides with the axis of the groove bottom wall of the second sliding groove 241 .
  • there are two second upper limit blocks 26 and the two second upper limit blocks 26 are arranged at intervals along the Y-axis direction.
  • the two second upper limit blocks 26 are respectively mounted on the top sides of the two second slide slots 241 , and respectively surround the two second slide slots 241 to form two second arc-shaped slots 202 .
  • the two second upper limit blocks 26 can be integrally formed with the second lower limit block 24, or the two second upper limit blocks 26 can be integrated with the second lower limit block 24 through assembly. structure to enhance the overall strength of the rotating mechanism 130.
  • the first swing arm 30 includes a first shaft portion 31 and a first swing portion 32, the first shaft portion 31 is located at one end of the first swing arm 30, the first swing portion 32 is located at one side of the first shaft portion 31, and is connected to the first shaft portion 31.
  • a shaft part 31 is fixedly connected.
  • the first rotating shaft part 31 is in the shape of an arcuate plate, and the first swinging part 32 is in the shape of a planar plate. Wherein, the first rotating shaft portion 31 protrudes away from the top surface of the first swing portion 32 and fits into the first arc-shaped groove 201 .
  • the first rotating shaft portion 31 is slidably installed in the first arc-shaped groove 201 and can rotate relative to the position-limiting base 20 .
  • the first rotating shaft portion 31 is clamped between the first lower limiting block 23 and the first upper limiting block 25 . That is, along the Z-axis direction, the first lower limit block 23 and the first upper limit block 25 jointly limit the first rotating shaft part 31 to prevent the first rotating shaft part 31 from slipping from the first arc-shaped groove 201, ensuring the first
  • the reliability of the rotation of the rotating shaft portion 31 relative to the position-limiting base 20 further ensures the reliability of the use of the rotation mechanism 130 .
  • the fit between the first shaft part 31 and the first arc-shaped groove 201 means that the first shaft part 31 can slide in the first arc-shaped slot 201, so as to realize the alignment between the first shaft part 31 and the position-limiting base.
  • the relative rotation between the seats 20 The adaptation mentioned later can be understood in the same way.
  • the first swinging portion 32 protrudes relative to the first arc-shaped slot 201 . Wherein, the first swinging portion 32 protrudes relative to the left side of the first lower limiting block 23 .
  • the first swinging part 32 rotates relative to the position-limiting base 20, it drives the first rotating shaft part 31 to slide in the first arc-shaped groove 201, so as to realize the rotation of the first rotating shaft part 31 relative to the position-limiting base 20, thereby realizing the first
  • the rotation of the swing arm 30 is limited relative to the base 20 .
  • the structure of the second swing arm 40 is substantially the same as that of the first swing arm 30 .
  • the second swing arm 40 includes a second shaft part 41 and a second swing part 42, the second shaft part 41 is located at one end of the second swing arm 40, the second swing part 42 is located at one side of the second shaft part 41, and is connected to the second shaft part 41.
  • the two shaft parts 41 are fixedly connected.
  • the second rotating shaft part 41 is in the shape of an arcuate plate, and the second swinging part 42 is in the shape of a planar plate. Wherein, the second rotating shaft portion 41 protrudes away from the top surface of the second swing portion 42 and fits into the second arc-shaped groove 202 .
  • the second rotating shaft portion 41 is slidably installed in the second arc-shaped groove 202 and can rotate relative to the position-limiting base 20 .
  • the second rotating shaft portion 41 is clamped between the second lower limiting block 24 and the second upper limiting block 26 . That is, along the Z-axis direction, the second lower limit block 24 and the second upper limit block 26 jointly limit the second rotating shaft part 41, prevent the second rotating shaft part 41 from slipping from the second arc-shaped groove 202, and ensure the second rotating shaft.
  • the second swinging portion 42 protrudes relative to the second arc-shaped slot 202 .
  • the second swinging portion 42 protrudes relative to the right side of the second lower limiting block 24 .
  • the second swinging part 42 rotates relative to the position-limiting base 20, it drives the second rotating shaft part 41 to slide in the second arc-shaped groove 202, so as to realize the rotation of the second rotating shaft part 41 relative to the position-limiting base 20, thereby realizing the second The rotation of the swing arm 40 is limited relative to the base 20 .
  • the included angle between the second swinging portion 42 and the first swinging portion 32 is ⁇ .
  • the first shaft portion 31 and the second shaft portion 41 are arranged at intervals.
  • the first rotating shaft portion 31 and the second rotating shaft portion 41 are all overlapped and arranged, which helps to reduce the size of the rotating mechanism 130 along the Y-axis direction and realize the miniaturization design of the rotating mechanism 130 .
  • the first rotating shaft portion 31 and the second rotating shaft portion 41 may also be partially or completely overlappingly arranged, which helps to reduce the rotation force of the rotating mechanism 130 along the X-axis direction.
  • the size realizes the miniaturization design of the rotating mechanism 130 .
  • the first rotating shaft portion 31 and the second rotating shaft portion 41 may also be partially overlapped or arranged at intervals, which is not specifically limited in the present application.
  • FIG. 7 is a schematic cross-sectional structure diagram of the foldable terminal 1000 shown in FIG. 2 along III-III.
  • the rotating mechanism 130 is installed in the receiving space 1001 .
  • the partial rotation mechanism 130 is installed in the first receiving groove 1101 of the first casing 110
  • the partial rotation mechanism 130 is installed in the second receiving groove 1201 of the second casing 120 .
  • the first swing arm 30 is fixedly connected to the first casing 110
  • the second swing arm 40 is fixedly connected to the second casing 120 .
  • the first swing part 32 is fixedly connected to the first casing 110
  • the second swing part 42 is fixedly connected to the second casing 120 .
  • the first swing arm 30 may be fixedly connected to the first housing 110 by means of screws or bolts
  • the second swing arm 40 may be fixedly connected to the second housing 120 by means of screws or bolts.
  • the top surface of the first swinging part 32 is flush with the top surface of the second swinging part 42, and the top surface of the first swinging part 32 and the top surface of the second swinging part 42 jointly form a supporting surface 1301, and the supporting surface 1301 can be
  • the bendable portion 230 of the display screen 200 is supported to ensure a good display of the display screen 200 .
  • the bendable part 230 can be installed on the supporting surface 1301 through the adhesive layer 300 .
  • the top surface of the first swinging part 32 is flush with the top surface of the first casing 110
  • the top surface of the second swinging part 42 is flush with the top surface of the second casing 120, so that the first swinging part 32 and the top surface of the second casing 120 are flush with each other.
  • the second swinging part 42 can support the display screen 200 together with the first casing 110 and the second casing 120 , so that the foldable device 100 in a flattened state can effectively support the display screen 200 .
  • the rotating mechanism 130 may also include a transmission part (not shown in the figure), the transmission part is connected between the first swing arm 30 and the second swing arm 40, so that when the first swing arm 30 rotates relative to the position-limiting base 20 , drive the second swing arm 40 to rotate relative to the limit base 20, or drive the first swing arm 30 to rotate relative to the limit base 20 while the second swing arm 40 rotates relative to the limit base 20, so as to realize the second The first swing arm 30 and the second swing arm 40 rotate synchronously relative to the limit base 20 .
  • the transmission member may be a gear or other components capable of transmission.
  • the rotating shafts of each swing arm are continuous arc-shaped plates.
  • the rotation process of each swing arm cannot be compared with the bending process of the display screen.
  • the rotating mechanism can easily pull the display screen, causing the display screen to wrinkle under force, and affecting the reliability of the foldable terminal.
  • the first shaft part 31 and the second shaft part 41 are designed as discontinuous arc-shaped plates.
  • the first swing arm 30 and the second shaft part The rotation process of the two swing arms 40 relative to the limit base 20 can match the bending process of the display screen 200, which can prevent the rotating mechanism 130 from pulling the display screen 200, avoid the problem of wrinkling of the display screen 200 under force, and ensure The use reliability of the folding terminal 1000.
  • FIG. 8 is a schematic structural diagram of the first swing arm 30 of the foldable terminal 1000 shown in FIG. 7 in a first implementation manner.
  • the first rotating shaft portion 31 includes three arc-shaped portions distributed along the circumferential direction of the first rotating shaft portion 31 , and the three arc-shaped portions are connected in sequence.
  • the three arc portions are respectively a first arc portion 33 , a second arc portion 34 and a fifth arc portion 35 .
  • the first arc portion 33 is located at the end of the first shaft portion 31 away from the first swing portion 32
  • the fifth arc portion 35 is located at the end of the first shaft portion 31 close to the first swing portion 32 , and is fixed to the first swing portion 32
  • the second arc portion 34 is connected between the first arc portion 33 and the fifth arc portion 35 .
  • the first rotating shaft portion 31 may also include two or more than four arc-shaped portions, which is not specifically limited in the present application.
  • the axis of the first arc portion 33 is C 1 , and the radius of the first arc portion 33 is R 1 .
  • the axis of the second arc portion 34 is C 2 , and the radius of the second arc portion 34 is R 2 .
  • the axis of the fifth arc portion 35 is C 3 , and the radius of the fifth arc portion 35 is R 3 .
  • the axis C 1 of the first arc portion 33 , the axis C 2 of the second arc portion 34 , and the axis C 3 of the fifth arc portion 35 are spaced from each other.
  • the axis C 1 of the first arc portion 33 , the axis C 2 of the second arc portion 34 , and the axis C 3 of the fifth arc portion 35 do not coincide.
  • the axis C1 of the first arcuate portion 33 and the axis C2 of the second arcuate portion 34 are located at the bottom side of the axis C3 of the fifth arcuate portion 35 , the axis of the first arcuate portion 33
  • the center C1 is located on the bottom side of the axis C2 of the second arcuate portion 34 .
  • the axis C 2 of the second arc portion 34 may also be located at the bottom side of the axis C 1 of the first arc portion 33 .
  • the axis C1 of the first arcuate portion 33 and the axis C3 of the fifth arcuate portion 35 can also be located at the bottom side of the axis C2 of the second arcuate portion 34, and the fifth arcuate portion 35
  • the axis C3 of the first arc-shaped portion 33 is located at the bottom side of the axis C1 of the first arc-shaped portion 33, or the axis C1 of the first arc-shaped portion 33 is located at the bottom side of the axis C3 of the fifth arc-shaped portion 35 .
  • the axis C2 of the second arc portion 34 and the axis C3 of the fifth arc portion 35 can also be located at the bottom side of the axis C1 of the first arc portion 33, and the second arc portion 34
  • the axis C2 of the fifth arc-shaped portion 35 is located at the bottom side of the axis C3 of the fifth arc-shaped portion 35, or the axis C3 of the fifth arc-shaped portion 35 is located at the bottom side of the axis C2 of the second arc-shaped portion 34 .
  • the radius R 1 of the first arcuate portion 33 , the radius R 2 of the second arcuate portion 34 , and the radius R 3 of the fifth arcuate portion 35 are equal.
  • the radius R 1 of the first arc portion 33 may be equal to the radius R 2 of the second arc portion 34, but not equal to the radius R 3 of the fifth arc portion 35, or, the first The radius R1 of the arcuate portion 33 can be equal to the radius R3 of the fifth arcuate portion 35, but not equal to the radius R3 of the fifth arcuate portion 35, or the radius R2 of the second arcuate portion 34 can be It is equal to the radius R 3 of the fifth arc portion 35, but not equal to the radius R 3 of the radius R 1 of the first arc portion 33, or the radius R 1 of the first arc portion 33, the radius R 1 of the second arc portion
  • the radius R 2 of the fifth arc portion 34 and the radius R 3 of the fifth arc portion 35 are not equal.
  • FIG. 9 is a schematic diagram of a partial structure of the foldable terminal 1000 shown in FIG. 7 in a first implementation manner. Wherein, FIG. 9 only shows the display screen 200 , the axis C 1 of the first arc portion 33 , the axis C 2 of the second arc portion 34 , and the axis C 3 of the fifth arc portion 35 .
  • the axis C 1 of the first arc portion 33 , the axis C 2 of the second arc portion 34 , and the axis C 3 of the fifth arc portion 35 are all located in the display screen 200 .
  • the axis C 1 of the first arc portion 33 , the axis C 2 of the second arc portion 34 , and the axis C 3 of the fifth arc portion 35 are respectively located in different layers of the display screen 200 .
  • the axis C1 of the first arcuate portion 33 is located in the third structural layer 260
  • the axis C2 of the second arcuate portion 34 is located in the second structural layer 250, and is located on the axis of the first arcuate portion 33.
  • the center C1 is away from the side of the second swing arm 40, the axis C3 of the fifth arc portion 35 is located in the first structural layer 240, and the axis C2 of the second arc portion 34 is far away from the second swing arm 40 on one side.
  • the axis C1 of the first arc portion 33 may also be located in the fifth structural layer 280, the fourth structural layer 270, the second structural layer 250 or the first structural layer 240 of the display screen 200, Alternatively, the axis C1 of the second arc portion 34 may also be located in the fifth structural layer 280, the fourth structural layer 270, the third structural layer 260 or the first structural layer 240 of the display screen 200, or the fifth arc
  • the axis C3 of the shaped portion 35 may also be located in the fifth structural layer 280, the fourth structural layer 270, the third structural layer 260 or the second structural layer 250 of the display screen 200, which is not specifically limited in the present application.
  • the structure of the second swing arm 40 is substantially the same as that of the first swing arm 30 .
  • the second rotating shaft portion 41 includes three arc-shaped portions distributed along the circumferential direction of the second rotating shaft portion 41 , and the three arc-shaped portions are connected in sequence.
  • the three arc portions are respectively the third arc portion, the fourth arc portion and the sixth arc portion (not shown in the figure).
  • the third arc portion is located at the end of the second shaft portion 41 away from the second swing portion 42
  • the sixth arc portion is located at the end of the second shaft portion 41 close to the second swing portion 42 , and is fixedly connected to the second swing portion 42
  • the fourth arc portion is connected between the third arc portion and the sixth arc portion.
  • the axis center of the third arc portion is located on the first structural layer 240
  • the axis center of the fourth arc portion is located on the second structure layer 250
  • the axis center of the third arc portion is far away from the first swing arm 30.
  • the axis of the sixth arc portion is located on the third structural layer 260
  • the axis of the fourth arc portion is located on a side away from the first swing arm 30 .
  • the structure of the third arc portion is approximately the same as that of the first arc portion 33
  • the structure of the fourth arc portion is approximately the same as that of the second arc portion 34
  • the structure of the sixth arc portion The structure of the fifth arc portion 35 is substantially the same, so the specific structures of the third arc portion, the fourth arc portion and the sixth arc portion can refer to the first arc portion 33 and the second arc portion above respectively. 34 and the description of the fifth arc portion 35 will not be repeated here.
  • the axis C1 of the first arcuate portion 33 is closer to the first structural layer 240, the axis C2 of the second arcuate portion 34 is located at the second structural layer 250 and at the center of the first arcuate portion 33.
  • the axis C1 is away from the side of the second swing arm 40, the axis C3 of the fifth arc portion 35 is located at the third structural layer 260, and the axis C2 of the second arc portion 34 is far away from the second swing arm 40 on one side.
  • the tensile deformation of the first structural layer 240 and the second structural layer 250 can be reduced to match the tensile deformation of the third structural layer 260, thereby improving the The degree of matching between the second structural layer 250 and the third structural layer 260, so the rotation process of the first swing arm 30 and the second swing arm 40 relative to the limit base 20 can match the bending process of the display screen 200,
  • the pulling of the display screen 200 by the rotating mechanism 130 can be reduced, avoiding the problem of wrinkling of the display screen 200 due to pulling, and ensuring the reliability of the foldable terminal 1000 .
  • FIG. 10 is a schematic diagram of a partial structure of the foldable terminal 1000 shown in FIG. 7 in a second implementation manner.
  • Fig. 10 only shows the display screen 200, the axis C 1 of the first arc portion 33, the radius R 1 , the axis C 2 of the second arc portion 34, the radius R 2 , the fifth arc portion 35 The axis C 3 and the radius R 3 .
  • the difference between the foldable terminal 1000 shown in this embodiment and the foldable terminal 1000 shown in the first embodiment above is that the radius R 1 of the first arc portion 33 is different from the radius R 2 of the second arc portion 34 Equally, the radius R 2 of the second arc portion 34 is not equal to the radius R 3 of the fifth arc portion 35 .
  • the radius R 1 of the first arc portion 33 is greater than the radius R 2 of the second arc portion 34
  • the radius R 2 of the second arc portion 34 is greater than the radius R 3 of the fifth arc portion 35 .
  • the curvature of the first arc portion 33 is designed tangent to the curvature of the second arc portion 34, that is, the difference between the radius R1 of the first arc portion 33 and the radius R2 of the second arc portion 34 Between 0.1mm and 10cm.
  • the curvature of the second arc portion 34 is designed tangent to the curvature of the fifth arc portion 35, that is, the difference between the radius R2 of the second arc portion 34 and the radius R3 of the fifth arc portion 35 is 0.1 Between mm ⁇ 10cm.
  • the curvature of the second arc portion 34 is designed to be tangent to the curvature of the first arc portion 33 and the curvature of the fifth arc portion 35, which can avoid pulling when the first shaft portion 31 rotates relative to the limit base 20 At the same time, the magnitude of the curvature change is reduced to ensure smooth rotation of the first rotating shaft portion 31 relative to the limiting base 20 .
  • the axis C1 of the first arcuate portion 33 is closer to the first structural layer 240, the axis C2 of the second arcuate portion 34 is located at the second structural layer 250 and at the center of the first arcuate portion 33.
  • the axis C1 is away from the side of the second swing arm 40, the axis C3 of the fifth arc portion 35 is located at the third structural layer 260, and the axis C2 of the second arc portion 34 is far away from the second swing arm 40 on one side.
  • the tensile deformation of the first structural layer 240 and the second structural layer 250 can be reduced to match the tensile deformation of the third structural layer 260, thereby improving the The degree of matching between the second structural layer 250 and the third structural layer 260, so the rotation process of the first swing arm 30 and the second swing arm 40 relative to the limit base 20 can match the bending process of the display screen 200,
  • the pulling of the display screen 200 by the rotating mechanism 130 can be reduced, avoiding the problem of wrinkling of the display screen 200 due to pulling, and ensuring the reliability of the foldable terminal 1000 .
  • FIG. 11 is a schematic diagram of a partial structure of the foldable terminal 1000 shown in FIG. 7 in a third implementation manner. Wherein, FIG. 11 only shows the display screen 200 , the axis C 1 of the first arc portion 33 , the axis C 2 of the second arc portion 34 , and the axis C 3 of the fifth arc portion 35 .
  • the foldable terminal 1000 shown in this embodiment differs from the foldable terminal 1000 shown in the first embodiment above in that the axis C 1 of the first arc portion 33 and the axis C of the second arc portion 34 2 and the axis C3 of the fifth arc portion 35 are located on the same layer of the display screen 200.
  • the axis C1 of the first arcuate portion 33 and the axis C2 of the second arcuate portion 34 can be located on the same layer of the display screen 200 , and the axis C1 of the fifth arcuate portion 35 C 3 different layers.
  • the axis C 1 of the first arc portion 33 and the axis C 3 of the fifth arc portion 35 may be located on the same layer of the display screen 200 , but different from the axis C 2 of the second arc portion 34 .
  • the axis C2 of the second arcuate portion 34 and the axis C3 of the fifth arcuate portion 35 are located on the same layer of the display screen 200, but different layers from the axis C1 of the first arcuate portion 33.
  • the application does not specifically limit this.
  • the axis C 1 of the first arc portion 33 , the axis C 2 of the second arc portion 34 and the axis C 3 of the fifth arc portion 35 are all located in the neutral layer 200 a of the display screen 200 , and spaced from each other. That is, the axis C 1 of the first arc portion 33 , the axis C 2 of the second arc portion 34 and the axis C 3 of the fifth arc portion 35 are all located in the third structure layer 260 of the display screen 200 . Wherein, the axis C 2 of the second arc portion 34 is located between the axis C 1 of the first arc portion 33 and the axis C 3 of the fifth arc portion 35 .
  • the axis C 1 of the first arc portion 33 , the axis C 2 of the second arc portion 34 , and the axis C 3 of the fifth arc portion 35 may all be located at the center of the display screen 200 .
  • the fourth structural layer 270 , the second structural layer 250 or the first structural layer 240 may all be located at the center of the display screen 200 .
  • the axis C1 of the first arc portion 33, the axis C2 of the second arc portion 34, and the axis C3 of the fifth arc portion 35 are all located in the neutral layer 200a of the display screen 200, and spaced from each other.
  • the center of rotation is located at the neutral layer 200a, so that the rotation of the first swing arm 30 relative to the limiting base 20 can be aligned with the neutral layer 200a.
  • the rotation process of the first swing arm 30 and the second swing arm 40 can match the bending process of the display screen 200, which can reduce the pulling of the display screen 200 by the rotating mechanism 130, and prevent the display screen 200 from being pulled.
  • the problem of wrinkles occurs to ensure the reliability of the foldable terminal 1000 .
  • FIG. 12 is a schematic diagram of a partial structure of the foldable terminal 1000 shown in FIG. 7 in a fourth implementation manner.
  • Fig. 12 only shows the display screen 200, the axis C 1 of the first arc portion 33, the radius R 1 , the axis C 2 of the second arc portion 34, the radius R 2 , the fifth arc portion 35 The axis C 3 and the radius R 3 .
  • the foldable terminal 1000 shown in this embodiment differs from the foldable terminal 1000 shown in the second embodiment above in that the axis C 1 of the first arc portion 33 and the axis C of the second arc portion 34 2 and the axis C3 of the fifth arc portion 35 are located on the same layer of the display screen 200 and overlap.
  • the axis C 1 of the first arc portion 33 may coincide with the axis C 2 of the second arc portion 34 , but not coincide with the axis C 3 of the fifth arc portion 35 .
  • the axis C 1 of the first arc portion 33 may coincide with the axis C 3 of the fifth arc portion 35 , but not coincide with the axis C 2 of the second arc portion 34 .
  • the axis C 2 of the second arc portion 34, the axis C 1 of the first arc portion 33 can coincide with the axis C 3 of the fifth arc portion 35, and coincide with the axis C of the first arc portion 33.
  • C 1 does not overlap, and this application does not specifically limit it.
  • the axis C 1 of the first arc portion 33 , the axis C 2 of the second arc portion 34 and the axis C 3 of the fifth arc portion 35 are all located in the neutral layer 200 a of the display screen 200 , And coincide. That is, the axis C 1 of the first arc portion 33 , the axis C 2 of the second arc portion 34 , and the axis C 3 of the fifth arc portion 35 are all located in the third structure layer 260 . In some other embodiments, the axis C 1 of the first arc portion 33 , the axis C 2 of the second arc portion 34 and the axis C 3 of the fifth arc portion 35 are all located on the display screen 200 . They are all located on the first structural layer 240 , the second structural layer 250 , the fourth structural layer 270 or the fifth structural layer 280 of the display screen 200 .
  • the axis C1 of the first arc portion 33, the axis C2 of the second arc portion 34, and the axis C3 of the fifth arc portion 35 are all located in the neutral layer 200a of the display screen 200, and spaced from each other.
  • the center of rotation is located at the neutral layer 200a, so that the rotation of the first swing arm 30 relative to the limiting base 20 can be aligned with the neutral layer 200a.
  • the rotation process of the first swing arm 30 and the second swing arm 40 can match the bending process of the display screen 200, which can reduce the pulling of the display screen 200 by the rotating mechanism 130, and prevent the display screen 200 from being pulled.
  • the problem of wrinkles occurs to ensure the reliability of the foldable terminal 1000 .
  • the structure of the second swing arm 40 may also be different from that of the first swing arm 30 .
  • the first swing arm 30 adopts the structure of the first swing arm 30 shown in the above-mentioned first embodiment
  • the second swing arm 40 adopts the structure of the first swing arm 40 shown in the above-mentioned second, third or fourth embodiment.
  • the structure of the arm 30, or the second swing arm 40 does not adopt the structure of the first swing arm 30 shown in any of the above-mentioned embodiments.
  • the rotation mechanism 130 can also reduce the impact on the display screen 200. Pulling avoids the problem of wrinkling of the display screen 200 due to pulling, and ensures the reliability of the foldable terminal 1000 .

Abstract

本申请实施例提供一种转动机构和可折叠终端,可折叠终端包括显示屏和转动机构。显示屏包括中性层。转动机构包括限位基座、第一摆臂和第二摆臂,限位基座设有第一弧形槽和第二弧形槽。第一摆臂包括第一转轴部,第一转轴部滑动安装于第一弧形槽,且可相对限位基座转动。第二摆臂包括第二转轴部,第二转轴部滑动安装于第二弧形槽,且相对限位基座转动。第一转轴部和第二转轴部相对限位基座转动的转动方向相反。其中,第一转轴部包括沿第一转轴部的周向分布的第一弧形部分和第二弧形部分,第一弧形部分和第二弧形部分固定连接,第一弧形部分的轴心与第二弧形部分的轴心均位于中性层,且相重合,第一弧形部分的半径与第二弧形部分的半径不同。

Description

转动机构和可折叠终端
本申请要求于2021年11月29日提交中国专利局、申请号为202111434863.6、申请名称为“转动机构和可折叠终端”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及可折叠终端领域,尤其涉及一种转动机构和可折叠终端。
背景技术
随着科技的进步,大屏智能终端时代来临,可折叠终端因其大屏和方便携带等优点而备受用户青睐。目前,可折叠终端往往采用转动机构来实现折叠和展开。然而,现有的转动机构往往会在折叠过程中对显示屏造成拉扯,导致显示屏受力出现褶皱问题,影响可折叠终端的使用可靠性。
发明内容
本申请提供一种转动机构和可折叠终端,在可折叠终端折叠过程中,可减少转动机构对显示屏的拉扯,避免显示屏受力出现褶皱的问题,保证可折叠终端的使用可靠性。
第一方面,本申请提供一种转动机构,用于可折叠终端中,可折叠终端包括显示屏,显示屏包括中性层。需要说明的是,由于显示屏包括多层结构层,各个结构层的材料不同,各个结构层的拉伸形变量也会有所不同。可折叠终端在折叠过程中,部分结构层会被拉伸,部分结构层会被压缩。中性层可包括一层或多层结构层。可折叠终端在折叠过程中,中性层为显示屏中既不被拉伸,又不被压缩的层结构,或者,中性层为显示屏中拉伸形变量和压缩形变量均较小的层结构。
转动机构包括限位基座、第一摆臂和第二摆臂。限位基座设有第一弧形槽和第二弧形槽。
第一摆臂包括第一转轴部,第一转轴部滑动安装于第一弧形槽,且可相对限位基座转动。第二摆臂包括第二转轴部,第二转轴部滑动安装于第二弧形槽,且可相对限位基座转动。其中,第一转轴部和第二转轴部相对限位基座转动的转动方向相反。
示例性的,第一转轴部相对限位基座沿顺时针方向转动,第二转轴部相对限位基座沿逆时针方向转动。此时,第一摆臂和第二摆臂相对限位基座转动以相对折叠。或者,第一转轴部相对限位基座沿逆时针方向转动,第二转轴部相对限位基座沿顺时针方向转动,第一摆臂和第二摆臂相对限位基座转动以相对展开。
其中,第一转轴部包括沿第一转轴部的周向分布的第一弧形部分和第二弧形部分,第一弧形部分和第二弧形部分固定连接,第一弧形部分的轴心与第二弧形部分的轴心均位于所述中性层,且相重合,第一弧形部分的半径与第二弧形部分的半径不同。
本申请所示转动机构用于可折叠终端时,在可折叠终端折叠过程中,由于第一弧形部分的轴心和第二弧形部分的轴心均位于显示屏的中性层,第一摆臂相对限位基座旋转时旋转中心位于显示屏的中性层,使得第一摆臂相对限位基座的旋转可与中性层的变化相匹配, 因此第一摆臂的旋转过程可与显示屏的弯折过程相匹配,可以减少转动机构对显示屏的拉扯,避免显示屏受拉扯而出现褶皱的问题,保证可折叠终端的使用可靠性。
一种实施方式中,第一弧形部分的半径与第二弧形部分的半径之差在0.1mm~10cm之间,以在第一摆臂相对限位基座转动时,减小第一弧形部分和第二弧形部分之间曲率变化的幅度,保证第一转轴部相对限位基座转动的流畅性。
一种实施方式中,第二转轴部包括沿第二转轴部的周向分布的第三弧形部分和第四弧形部分,第三弧形部分与第四弧形部分固定连接,第三弧形部分的轴心和第四弧形部分的轴心均位于中性层,且相重合,第三弧形部分的半径与第四弧形部分的半径不同。
本申请所示转动机构用于可折叠终端时,在可折叠终端折叠过程中,由于第三弧形部分的轴心和第四弧形部分的轴心均位于显示屏的中性层,第二摆臂相对限位基座旋转时旋转中心位于显示屏的中性层,使得第二摆臂相对限位基座的旋转可与中性层的变化相匹配,因此第二摆臂的旋转过程可与显示屏的弯折过程相匹配,可以减少转动机构对显示屏的拉扯,避免显示屏受拉扯而出现褶皱的问题,保证可折叠终端的使用可靠性。
一种实施方式中,第三弧形部分的半径与第四弧形部分的半径之差在0.1mm~10cm之间,以在第二摆臂相对限位基座转动时,减小第三弧形部分和第四弧形部分之间曲率变化的幅度,保证第二转轴部相对限位基座转动的流畅性。
一种实施方式中,第一转轴部还包括沿所述第一转轴部的周向分布的第五弧形部分,第五弧形部分固定连接于第二弧形部分远离第一弧形部分的一端,第五弧形部分的轴心与第二弧形部分的轴心重合,第五弧形部分的半径与第二弧形部分的半径不同。
本申请所示转动机构用于可折叠终端时,在可折叠终端折叠过程中,由于第五弧形部分的轴心位于显示屏的中性层,第一摆臂相对限位基座旋转时旋转中心始终位于显示屏的中性层,使得第一摆臂相对限位基座的旋转可与中性层的变化相匹配,因此第一摆臂的旋转过程可与显示屏的弯折过程相匹配,可以减少转动机构对显示屏的拉扯,避免显示屏受拉扯而出现褶皱的问题,保证可折叠终端的使用可靠性。
一种实施方式中,第五弧形部分的半径与第二弧形部分的半径之差在0.1mm~10cm之间,以在第一转轴部相对限位基座转动时,可减小第五弧形部分和第二弧形部分之间曲率变化的幅度,保证可第一转轴部相对限位基座转动的流畅性。
一种实施方式中,第二转轴部还包括沿第二转轴部的周向分布的第六弧形部分,第六弧形部分与第四弧形部分固定连接,第六弧形部分的轴心与第四弧形部分的轴心重合,第六弧形部分的半径与第四弧形部分的半径不同。
本申请所示转动机构用于可折叠终端时,在可折叠终端折叠过程中,由于第六弧形部分的轴心位于显示屏的中性层,第二摆臂相对限位基座旋转时旋转中心始终位于显示屏的中性层,使得第二摆臂相对限位基座的旋转可与中性层的变化相匹配,因此第二摆臂的旋转过程可与显示屏的弯折过程相匹配,可以减少转动机构对显示屏的拉扯,避免显示屏受拉扯而出现褶皱的问题,保证可折叠终端的使用可靠性。
一种实施方式中,第六弧形部分的半径与第四弧形部分的半径之差在0.1mm~10cm之间,以在第二转轴部相对限位基座转动时,可减小第六弧形部分和第四弧形部分之间曲率变化的幅度,保证可第二转轴部相对限位基座转动的流畅性。
一种实施方式中,第一摆臂还包括与第一转轴部固定连接的第一摆动部,第一摆动部相对第一弧形槽伸出。第一摆动部相对限位基座转动时,带动第一转轴部在第一弧形槽内滑动,实现第一转轴部相对限位基座的转动,进而实现第一摆臂相对限位基座的转动。
第二摆臂还包括与第二转轴部固定连接的第二摆动部,第二摆动部相对第二弧形槽伸出。第二摆动部相对限位基座转动时,带动第二转轴部在第二弧形槽内滑槽,实现第二转轴部相对限位基座的转动,进而实现第二摆臂相对限位基座的转动。
一种实施方式中,限位基座设有两个第一弧形槽和两个第二弧形槽。沿Y轴方向上,两个第一弧形槽间隔排布,两个第二弧形槽间隔排布。
转动机构包括两个第一摆臂和两个第二摆臂,两个第一转轴部分别滑动安装于两个第一弧形槽,两个第二转轴部分别滑动安装于两个第二弧形槽,以提高转动机构的转动稳定性。
一种实施方式中,转动机构具有对称面,转动机构关于对称面镜像对称,以保证转动机构的转动稳定性。
一种实施方式中,限位基座包括下限位块和上限位块,上限位块安装于下限位块,且与下限位块围合形成第一弧形槽和第二弧形槽。
其中,上限位块与下限位块可一体成型,或者,上限位块和下限位块可通过组装形成一体化结构,以保证转动机构的整体强度。
一种实施方式中,转动机构还包括外壳,限位基座、第一摆臂和第二摆臂均安装于外壳的内侧。
第二方面,本申请提供一种转动机构,用于可折叠终端中,可折叠终端包括显示屏,显示屏包括中性层。需要说明的是,由于显示屏包括多层结构层,各个结构层的材料不同,各个结构层的拉伸性也会有所不同。可折叠终端在折叠过程中,显示屏中各层结构的拉伸性均会有所不同,部分结构层会被拉伸,部分结构层会被压缩。中性层可包括一层或多层结构层。可折叠终端在折叠过程中,中性层为显示屏中既不被拉伸,又不被压缩的层结构,或者,中性层为显示屏中被拉伸率和被压缩率较小的层结构。
转动机构包括限位基座、第一摆臂和第二摆臂。限位基座设有第一弧形槽和第二弧形槽。第一摆臂包括第一转轴部,第一转轴部滑动安装于第一弧形槽,且可相对限位基座转动。第二摆臂包括第二转轴部,第二转轴部滑动安装于第二弧形槽,且可相对限位基座转动。其中,第一转轴部和第二转轴部相对限位基座转动的转动方向相反。
其中,第一转轴部包括沿第一转轴部的周向分布的第一弧形部分和第二弧形部分,第一弧形部分和第二弧形部分固定连接,第一弧形部分的轴心与第二弧形部分的轴心均位于中性层,且彼此间隔。
本申请所示转动机构用于可折叠终端时,在可折叠终端折叠过程中,由于第一弧形部分的轴心和第二弧形部分的轴心均位于显示屏的中性层,第一摆臂相对限位基座旋转时旋转中心位于显示屏的中性层,使得第一摆臂相对限位基座的旋转可与中性层的变化相匹配,因此第一摆臂的旋转过程可与显示屏的弯折过程相匹配,可以减少转动机构对显示屏的拉扯,避免显示屏受拉扯而出现褶皱的问题,保证可折叠终端的使用可靠性。
一种实施方式中,第一弧形部分的半径与第二弧形部分的半径相同,或者,第一弧形 部分的半径与第二弧形部分的半径之差在0.1mm~10cm之间,以在第一转轴部相对限位基座转动时,减小第一弧形部分和第二弧形部分之间曲率变化的幅度,保证第一转轴部相对限位基座转动的流畅性。
一种实施方式中,第二转轴部包括沿第二转轴部的周向分布的第三弧形部分和第四弧形部分,第三弧形部分与第四弧形部分固定连接,第三弧形部分的轴心和第四弧形部分的轴心均位于中性层,且彼此间隔。
本申请所示转动机构用于可折叠终端时,在可折叠终端折叠过程中,由于第三弧形部分的轴心和第四弧形部分的轴心均位于显示屏的中性层,第二摆臂相对限位基座旋转时旋转中心位于显示屏的中性层,使得第二摆臂相对限位基座的旋转可与中性层的变化相匹配,因此第二摆臂的旋转过程可与显示屏的弯折过程相匹配,可以减少转动机构对显示屏的拉扯,避免显示屏受拉扯而出现褶皱的问题,保证可折叠终端的使用可靠性。
一种实施方式中,第三弧形部分的半径与第四弧形部分的半径相同,或者,第三弧形部分的半径与第四弧形部分的半径之差在0.1mm~10cm之间,以在第二摆臂相对限位基座转动时,减小第三弧形部分和第四弧形部分之间曲率变化的幅度,保证第二转轴部相对限位基座转动的流畅性。
一种实施方式中,第一转轴部还包括沿所述第一转轴部的周向分布的第五弧形部分,第五弧形部分固定连接于第二弧形部分远离第一弧形部分的一端,第五弧形部分的轴心位于中性层,且与第二弧形部分的轴心彼此间隔。
本申请所示转动机构用于可折叠终端时,在可折叠终端折叠过程中,由于第五弧形部分的轴心位于显示屏的中性层,第一摆臂相对限位基座旋转时旋转中心始终位于显示屏的中性层,使得第一摆臂相对限位基座的旋转可与中性层的变化相匹配,因此第一摆臂的旋转过程可与显示屏的弯折过程相匹配,可以减少转动机构对显示屏的拉扯,避免显示屏受拉扯而出现褶皱的问题,保证可折叠终端的使用可靠性。
一种实施方式中,第五弧形部分的半径与第二弧形部分的半径相同,或者,第五弧形部分的半径与第二弧形部分的半径不同,第五弧形部分的半径与第二弧形部分的半径之差在0.1mm~10cm之间,以在第一转轴部相对限位基座转动时,可减小第五弧形部分和第二弧形部分之间曲率变化的幅度,保证可第一转轴部相对限位基座转动的流畅性。
一种实施方式中,第二转轴部还包括沿第二转轴部的周向分布的第六弧形部分,第六弧形部分与第四弧形部分固定连接,第六弧形部分的轴心位于中性层,且与第四弧形部分的轴心彼此间隔。
本申请所示转动机构用于可折叠终端时,在可折叠终端折叠过程中,由于第六弧形部分的轴心位于显示屏的中性层,第二摆臂相对限位基座旋转时旋转中心始终位于显示屏的中性层,使得第二摆臂相对限位基座的旋转可与中性层的变化相匹配,因此第二摆臂的旋转过程可与显示屏的弯折过程相匹配,可以减少转动机构对显示屏的拉扯,避免显示屏受拉扯而出现褶皱的问题,保证可折叠终端的使用可靠性。
一种实施方式中,第六弧形部分的半径与第四弧形部分的半径相同,或者,第六弧形部分的半径与第四弧形部分的半径不同,第六弧形部分的半径与第四弧形部分的半径之差在0.1mm~10cm之间,以在第二转轴部相对限位基座转动时,可减小第六弧形部分和第四 弧形部分之间曲率变化的幅度,保证可第二转轴部相对限位基座转动的流畅性。
一种实施方式中,第一摆臂还包括与第一转轴部固定连接的第一摆动部,第一摆动部相对第一弧形槽伸出。第一摆动部相对限位基座转动时,带动第一转轴部在第一弧形槽内滑动,实现第一转轴部相对限位基座的转动,进而实现第一摆臂相对限位基座的转动。
第二摆臂还包括与第二转轴部固定连接的第二摆动部,第二摆动部相对第二弧形槽伸出。第二摆动部相对限位基座转动时,带动第二转轴部在第二弧形槽内滑槽,实现第二转轴部相对限位基座的转动,进而实现第二摆臂相对限位基座的转动。
一种实施方式中,限位基座设有两个第一弧形槽和两个第二弧形槽。沿Y轴方向上,两个第一弧形槽间隔排布,两个第二弧形槽间隔排布。
转动机构包括两个第一摆臂和两个第二摆臂,两个第一转轴部分别滑动安装于两个第一弧形槽,两个第二转轴部分别滑动安装于两个第二弧形槽,以提高转动机构的转动稳定性。
一种实施方式中,转动机构具有对称面,转动机构关于对称面镜像对称,以保证转动机构的转动稳定性。
一种实施方式中,限位基座包括下限位块和上限位块,上限位块安装于下限位块,且与下限位块围合形成第一弧形槽和第二弧形槽。
其中,上限位块与下限位块可一体成型,或者,上限位块和下限位块可通过组装形成一体化结构,以保证转动机构的整体强度。
一种实施方式中,转动机构还包括外壳,限位基座、第一摆臂和第二摆臂均安装于外壳的内侧。
第三方面,本申请提供一种转动机构,用于可折叠终端中。可折叠终端包括显示屏,显示屏包括层叠设置的第一结构层和第二结构层。可折叠终端在折叠过程中,第一结构层的拉伸形变量大于第二结构层拉伸形变量。
转动机构包括限位基座、第一摆臂和第二摆臂。限位基座设有第一弧形槽和第二弧形槽。第一摆臂包括第一转轴部,第一转轴部滑动安装于第一弧形槽,且可相对限位基座转动。第二摆臂包括第二转轴部,第二转轴部滑动安装于第二弧形槽,且可相对限位基座转动。其中,第一转轴部和第二转轴部相对限位基座转动的转动方向相反。
其中,第一转轴部包括沿第一转轴部的周向分布的第一弧形部分和第二弧形部分,第一弧形部分和第二弧形部分固定连接,第一弧形部分的轴心位于第一结构层内,第二弧形部分的轴心位于第二结构层内,且位于第一弧形部分的轴心远离第二摆臂的一侧。
本申请所示转动机构用于可折叠终端时,在可折叠终端折叠过程中,由于第一弧形部分的轴心位于第一结构层内,第二弧形部分的轴心位于第二结构层内,且位于第一弧形部分的轴心远离第二摆臂的一侧,第一结构层的拉伸形变量可减少至与第二结构层的拉伸形变量相匹配,因此可以提高第一结构层与第二结构层之间的匹配度,使得第一摆臂相对限位基座的旋转过程可与显示屏200的弯折过程相匹配,可以减少转动机构对显示屏的拉扯,避免显示屏受拉扯而出现褶皱的问题,保证可折叠终端的使用可靠性。
一种实施方式中,第一弧形部分的半径与第二弧形部分的半径相同,或者,第一弧形部分的半径与第二弧形部分的半径不同,第一弧形部分的半径与第二弧形部分的半径之差 在0.1mm~10cm之间,以在第一转轴部相对限位基座转动时,减小第一弧形部分和第二弧形部分之间曲率变化的幅度,保证第一转轴部相对限位基座转动的流畅性。
一种实施方式中,第二转轴部包括沿第二转轴部的周向分布的第三弧形部分和第四弧形部分,第三弧形部分与第四弧形部分固定连接,第三弧形部分的轴心位于第一结构层内,第四弧形部分的轴心位于第二结构层内,且位于第三弧形部分的轴心远离第一摆臂的一侧。
本申请所示转动机构用于可折叠终端时,在可折叠终端折叠过程中,由于第三弧形部分的轴心位于第一结构层内,第四弧形部分的轴心位于第二结构层内,且位于第三弧形部分的轴心远离第一摆臂的一侧,第一结构层的拉伸形变量可减少至与第二结构层的拉伸形变量相匹配,因此可以提高第一结构层与第二结构层之间的匹配度,使得第二摆臂相对限位基座的旋转过程可与显示屏的弯折过程相匹配,可以减少第二摆臂旋转过程中对第一结构层的过渡拉扯,进而减少了转动机构对显示屏的拉扯,避免显示屏受拉扯而出现褶皱的问题,保证可折叠终端的使用可靠性。
一种实施方式中,第三弧形部分的半径与第四弧形部分的半径相同,或者,第三弧形部分的半径与第四弧形部分的半径之差在0.1mm~10cm之间,以在第二摆臂相对限位基座转动时,减小第三弧形部分和第四弧形部分之间曲率变化的幅度,保证第二转轴部相对限位基座转动的流畅性。
一种实施方式中,显示屏还包括第三结构层,第三结构层、第一结构层和第二结构层层叠设置,可折叠终端在折叠过程中,第三结构层的拉伸形变量小于第二结构层的拉伸形变量。
第一转轴部还包括沿所述第一转轴部的周向分布的第五弧形部分,第五弧形部分固定连接于第二弧形部分远离第一弧形部分的一端,第五弧形部分的轴心位于第三结构层,且位于第二弧形部分的轴心远离第二摆臂的一侧。
本申请所示转动机构用于可折叠终端时,在可折叠终端折叠过程中,由于第五弧形部分的轴心位于第三结构层内,且位于第二弧形部分的轴心远离第二摆臂的一侧,第一结构层的和第二结构层的拉伸形变量可减少至与第三结构层的拉伸形变量相匹配,因此可以提高第一结构层、第二结构层和第三结构层之间的匹配度,使得第一摆臂相对限位基座的旋转过程可与显示屏的弯折过程相匹配,可以减少了转动机构对显示屏的拉扯,避免显示屏受拉扯而出现褶皱的问题,保证可折叠终端的使用可靠性。
一种实施方式中,第五弧形部分的半径与第二弧形部分的半径相同,或者,第五弧形部分的半径与第二弧形部分的半径不同,第五弧形部分的半径与第二弧形部分的半径之差在0.1mm~10cm之间,以在第一转轴部相对限位基座转动时,可减小第五弧形部分和第二弧形部分之间曲率变化的幅度,保证可第一转轴部相对限位基座转动的流畅性。
一种实施方式中,第二转轴部还包括沿第二转轴部的周向分布的第六弧形部分,第六弧形部分与第四弧形部分固定连接,第六弧形部分的轴心位于第三结构层内,且位于第四弧形部分的轴心远离第一摆臂的一侧。
本申请所示转动机构用于可折叠终端时,在可折叠终端折叠过程中,由于第六弧形部分的轴心位于第三结构层内,且位于第四弧形部分的轴心远离第一摆臂的一侧,第一结构层的和第二结构层的拉伸形变量可减少至与第三结构层的拉伸形变量相匹配,因此可以提 高第一结构层、第二结构层和第三结构层之间的匹配度,使得第二摆臂相对限位基座的旋转过程可与显示屏的弯折过程相匹配,可以减少转动机构对显示屏的拉扯,避免显示屏受拉扯而出现褶皱的问题,保证可折叠终端的使用可靠性。
一种实施方式中,第六弧形部分的半径与第四弧形部分的半径相同,或者,第六弧形部分的半径与第四弧形部分的半径不同,第六弧形部分的半径与第四弧形部分的半径之差在0.1mm~10cm之间,以在第二转轴部相对限位基座转动时,可减小第六弧形部分和第四弧形部分之间曲率变化的幅度,保证可第二转轴部相对限位基座转动的流畅性。
一种实施方式中,第一摆臂还包括与第一转轴部固定连接的第一摆动部,第一摆动部相对第一弧形槽伸出。第一摆动部相对限位基座转动时,带动第一转轴部在第一弧形槽内滑动,实现第一转轴部相对限位基座的转动,进而实现第一摆臂相对限位基座的转动。
第二摆臂还包括与第二转轴部固定连接的第二摆动部,第二摆动部相对第二弧形槽伸出。第二摆动部相对限位基座转动时,带动第二转轴部在第二弧形槽内滑槽,实现第二转轴部相对限位基座的转动,进而实现第二摆臂相对限位基座的转动。
一种实施方式中,限位基座设有两个第一弧形槽和两个第二弧形槽。沿Y轴方向上,两个第一弧形槽间隔排布,两个第二弧形槽间隔排布。
转动机构包括两个第一摆臂和两个第二摆臂,两个第一转轴部分别滑动安装于两个第一弧形槽,两个第二转轴部分别滑动安装于两个第二弧形槽,以提高转动机构的转动稳定性。
一种实施方式中,转动机构具有对称面,转动机构关于对称面镜像对称,以保证转动机构的转动稳定性。
一种实施方式中,限位基座包括下限位块和上限位块,上限位块安装于下限位块,且与下限位块围合形成第一弧形槽和第二弧形槽。
其中,上限位块与下限位块可一体成型,或者,上限位块和下限位块可通过组装形成一体化结构,以保证转动机构的整体强度。
一种实施方式中,转动机构还包括外壳,限位基座、第一摆臂和第二摆臂均安装于外壳的内侧。
第四方面,本申请提供一种可折叠终端,包括第一壳体、第二壳体、显示屏和上述第一方面或第二方面所示任一种转动机构,第一摆臂固定连接于第一壳体,第二摆臂固定连接于第二壳体,显示屏包括中性层,第一弧形部分的轴心和第二弧形部分的轴心均位于中性层,且相重合,第一弧形部分的半径与第二弧形部分的半径不同。
其中,第一摆动部固定连接于第一壳体,第二摆动部固定连接于第二壳体。
在本申请所示可折叠终端折叠过程中,由于第一弧形部分的轴心和第二弧形部分的轴心均位于显示屏的中性层,第一摆臂相对限位基座旋转时旋转中心位于显示屏的中性层,使得第一摆臂相对限位基座的旋转可与中性层的变化相匹配,因此第一摆臂的旋转过程可与显示屏的弯折过程相匹配,可以减少转动机构对显示屏的拉扯,避免显示屏受拉扯而出现褶皱的问题,保证可折叠终端的使用可靠性。
一种实施方式中,显示屏包括多层结构层,中性层包括一层或多层结构层。
一种实施方式中,显示屏包括基底层、显示功能层、偏光片、粘接层和保护层,显示 功能层、偏光片、粘接层和保护层依次层叠于基底层的顶面。
一种实施方式中,中性层包括显示功能层,第一弧形部分的轴心和第二弧形部分的轴心均位于显示功能层,以在可折叠终端折叠过程中,避免显示功能层被过度拉扯而劈裂,保证可折叠终端的使用可靠性。
一种实施方式中,中性层包括偏光片,第一弧形部分的轴心和第二弧形部分的轴心均位于偏光片内。
在其他一些实施方式中,中性层包括显示功能层和偏光片,第一弧形部分的轴心和第二弧形部分轴心均位于显示功能层内或偏光片内。
一种实施方式中,显示屏包括第一显示部分、第二显示部分和可弯折部分,可弯折部分连接于第一显示部分和第二显示部分之间,第一显示部分安装于第一壳体,第二显示部分安装于第二壳体,可弯折部分与转动机构相对设置。
第五方面,本申请提供一种可折叠终端,包括第一壳体、第二壳体、显示屏和上述第三方面所示任一种转动机构。第一摆臂固定连接于第一壳体,第二摆臂固定连接于第二壳体。其中,第一摆动部固定连接于第一壳体,第二摆动部固定连接于第二壳体。显示屏安装于第一壳体和第二壳体,显示屏包括第一结构层和第二结构层。
在本申请所示可折叠终端折叠过程中,由于第一弧形部分的轴心位于第一结构层内,第二弧形部分的轴心位于第二结构层内,且位于第一弧形部分的轴心远离第二摆臂的一侧,第一结构层的拉伸形变量可减少至与第二结构层的拉伸形变量相匹配,因此可以提高第一结构层和第二结构层之间的匹配度,减少第一摆臂旋转过程中对第一结构层的过渡拉扯,减少了转动机构对显示屏的拉扯,避免显示屏受拉扯而出现褶皱的问题,保证可折叠终端的使用可靠性。
一种实施方式中,显示屏还包括第三结构层,第三结构层、第一结构层和第二结构层层叠设置,可折叠终端在折叠过程中,第三结构层的拉伸性变形小于第二结构层的拉伸形变量。
第一转轴部还包括沿第一转轴部的周向分布的第五弧形部分,第五弧形部分固定连接于第二弧形部分远离第一弧形部分的一端,第五弧形部分的轴心位于第三结构层内,且位于第二弧形部分的轴心远离第二摆臂的一侧。
在本申请所示可折叠终端折叠过程中,由于第五弧形部分的轴心位于第三结构层内,且位于第二弧形部分的轴心远离第二摆臂的一侧,第一结构层的和第二结构层的拉伸形变量可减少至与第三结构层的拉伸形变量相匹配,因此可以提高第一结构层、第二结构层和第三结构层之间的匹配度,使得第一摆臂相对限位基座的旋转过程可与显示屏的弯折过程相匹配,可以减少转动机构对显示屏的拉扯,避免显示屏受拉扯而出现褶皱的问题,保证可折叠终端的使用可靠性。
一种实施方式中,显示屏包括依次层叠的基底层、显示功能层、偏光片、粘接层和保护层,基底层为第一结构层,显示功能层为第二结构层,偏光片为第三结构层。
一种实施方式中,显示屏包括第一显示部分、第二显示部分和可弯折部分,可弯折部分连接于第一显示部分和第二显示部分之间,第一显示部分安装于第一壳体,第二显示部分安装于第二壳体,可弯折部分与转动机构相对设置。
附图说明
为了更清楚地说明本申请实施例的技术方案,下面将对本申请实施例所需要使用的附图进行说明。
图1是本申请实施例提供的一种可折叠终端在第一种状态下的结构示意图;
图2是图1所示的可折叠终端在第二种状态下的结构示意图;
图3是图2所示可折叠终端的分解结构示意图;
图4是图3所示可折叠终端中显示屏沿I-I处剖开的剖面结构示意图;
图5是图3所示可折叠终端中转动机构的结构示意图;
图6是图5所示转动机构沿II-II处剖开的剖面结构示意图;
图7是图2所示可折叠终端沿III-III处剖开的剖面结构示意图;
图8是图7所示可折叠终端在第一种实施方式下第一摆臂的结构示意图;
图9是图7所示可折叠终端在第一种实施方式下的局部结构示意图;
图10是图7所示可折叠终端在第二种实施方式下的局部结构示意图;
图11是图7所示可折叠终端在第三种实施方式下的局部结构示意图;
图12是图7所示可折叠终端在第四种实施方式下的局部结构示意图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述。
请参阅图1和图2,图1是本申请实施例提供的一种可折叠终端1000在第一种状态下的结构示意图,图2是图1所示可折叠终端1000在第二种状态下的结构示意图。
其中,为了便于描述,定义图2所示可折叠终端1000的宽度方向为X轴方向,可折叠终端1000的长度方向为Y轴方向,可折叠终端1000的厚度方向为Z轴方向,X轴方向、Y轴方向和Z轴方向两两相互垂直。
可折叠终端1000可以为手机、平板电脑、个人计算机、多媒体播放器、电子书阅读器、笔记本电脑、车载设备或可穿戴设备等可折叠的电子产品。本实施例中,可折叠终端1000为可折叠手机。即,可折叠终端1000为可以在折叠状态和展开状态之间切换的手机。本申请实施例中,以可折叠终端1000可沿X轴方向发生折叠或者展开为例进行说明。
其中,图1所示可折叠终端1000处于折叠状态,图2所示可折叠终端1000处于展开状态。示例性的,图2所示可折叠终端1000的展开角度α为180度。即图2所示可折叠终端1000处于展平状态。
需要说明的是,本申请实施例中,举例说明的角度均允许存在少许偏差。例如,图2所示可折叠终端1000的展开角度α为180度是指,α可以为180度,也可以大约为180度,比如170度、175度、185度和190度等。后文中举例说明的角度可做相同理解。
应当理解的是,本申请实施例所示可折叠终端1000为可发生一次折叠的终端。在其他一些实施例中,可折叠终端1000也可以为可发生多次(两次以上)折叠的终端。此时,可折叠终端1000可以包括多个部分,相邻两个部分可相对靠近折叠至可折叠终端1000处于折叠状态,相邻两个部分可相对远离展开至可折叠终端1000处于展开状态。
请一并参阅图3,图3是图2所示可折叠终端1000的分解结构示意图。
可折叠终端1000包括可折叠装置100和显示屏200,显示屏200安装于可折叠装置100,且用以显示文字、图像或视频等信息。本实施例中,显示屏200包括第一显示部分210、第二显示部分220和可弯折部分230,可弯折部分230连接于第一显示部分210和第二显示部分220之间。其中,可弯折部分230可沿X轴方向发生弯折。
如图1所示,可折叠终端1000处于折叠状态时,第一显示部分210和第二显示部分220相对设置,可弯折部分230发生弯折。此时,显示屏200处于折叠状态,显示屏200的外露面积比较少,可大大降低显示屏200被损坏的概率,实现对显示屏200的有效保护。如图2所示,可折叠终端1000处于展开状态,第一显示部分210和第二显示部分220相对展开,可弯折部分230不发生弯折而展平。此时,第一显示部分210、第二显示部分220和可弯折部分230之间的夹角均为α,显示屏200具有大面积的显示区域,实现可折叠终端1000的大屏显示,提高用户的使用体验。
本实施例中,可折叠装置100包括第一壳体110、第二壳体120以及转动机构130,转动机构130连接于第一壳体110和第二壳体120之间,以实现第一壳体110和第二壳体120之间的转动连接。具体的,第一壳体110承载第一显示部分210,第二壳体120承载第二显示部分220。换言之,第一显示部分210安装于第一壳体110,第二显示部分220安装于第二壳体120。其中,转动机构130与可弯折部分230相对设置。
第一壳体110和第二壳体120可通过转动机构130相对转动,使得可折叠装置100在折叠状态和展开状态之间相互切换。具体的,第一壳体110和第二壳体120可相对转动至相对设置,以使可折叠装置100处于折叠状态,如图1所示。第一壳体110和第二壳体120也可相对转动至相对展开,以使可折叠装置100处于展开状态,如图2所示。示例性的,图2所示可折叠终端1000处于展开状态,第一壳体110和第二壳体120之间的夹角为α。
第一壳体110设有第一收容槽1101,第一收容槽1101位于第一壳体110朝向第二壳体120的一侧。第一收容槽1101的开口位于第一壳体110的顶面。第一收容槽1101自第一壳体110的顶面向底面的方向凹陷,且贯穿第一壳体110朝向第二壳体120的侧面。其中,第一收容槽1101的槽底壁凸设有第一台阶1102,第一台阶1102的台阶面位于第一壳体110的顶面和第一收容槽1101的槽底壁之间。
第二壳体120和第一壳体110的结构相同,且相对于转动机构130镜像对称。第二壳体120设有第二收容槽1201,第二收容槽1201位于第二壳体120朝向第一壳体110的一侧。第二收容槽1201的开口位于第二壳体120的顶面。第二收容槽1201自第二壳体120的顶面向底面的方向凹陷,且贯穿第二壳体120朝向第一壳体110的侧面。其中,第二收容槽1201的槽底壁凸设有第二台阶1202,第二台阶1202的台阶面位于第二壳体120的顶面和第二收容槽1201的槽底壁之间。如图3所示,可折叠装置100处于展平状态时,即第一壳体110和第二壳体120之间的夹角为α时,第一收容槽1101和第二收容槽1201围合形成收容空间1001,收容空间1001收容转动机构130。
需要说明的是,本申请实施例描述可折叠终端1000时所采用“顶”和“底”等方位用词主要依据可折叠终端1000于附图2中的展示方位进行阐述,以朝向Z轴正方向为“顶”,以朝向Z轴负方向为“底”,其并不形成对可折叠终端1000于实际应用场景中的方位的限定。
请参阅图4,图4是图3所示可折叠终端1000中显示屏200沿I-I处剖开的剖面结构 示意图。需要说明的是,本申请附图中,沿“I-I处剖开”是指沿I-I线所在的平面剖开,后文中对附图的说明可做相同理解。
本实施例中,显示屏200包括五层结构层,五层结构层层叠设置。其中,五层结构层分别为第一结构层240、第二结构层250、第三结构层260、第四结构层270和第五结构层280,第二结构层250、第三结构层260、第四结构层270和第五结构层280依次层叠于第一结构层240的顶面。在其他一些实施例中,显示屏200也可以包括两层、三层、四层或五层以上结构层,本申请对此不作具体限定。
具体的,第一结构层240为基底层,第二结构层250为显示功能层,第三结构层260为偏光片,第四结构层270为粘接层,第五结构层280为保护层。其中,基底层为显示屏200中具有支撑功能的结构层。示例性的,基底层可为钢片基底。在其他一些实施例中,基底层可以包括一层或多层支撑结构层(图未示),各支撑结构层可采用泡棉、聚酰亚胺(PI,polyimide)或金属竹书等制成,使基底层具有一定的强度和刚度,以支撑显示功能层。
显示功能层为显示屏200中具有显示功能的结构层。偏光片层叠于显示功能层的顶面。由于基底层、显示功能层和偏光片的材料均不同,在可折叠终端1000折叠过程中,基底层、显示功能层和偏光片的拉伸形变量均有所不同。其中,基底层的拉伸形变量大于显示功能层的拉伸形变量,显示功能层的拉伸形变量大于偏光片的拉伸形变量。即,第一结构层240的拉伸形变量大于第二结构层250的拉伸形变量,第二结构层250的拉伸形变量大于第三结构层260的拉伸形变量。
保护层为显示屏200中具有保护功能的结构层。保护层位于偏光片的顶侧,粘接层连接于保护层和偏光片之间。保护层可保护显示功能层。其中,粘接层可为双面胶,粘接层的顶面粘接于保护层的底面,粘接层的底面粘接于偏光片的顶面。
此外,显示屏200包括中性层200a,中性层200a可包括一层或多层结构层。本实施例中,中性层200a包括第三结构层260。在其他一些实施例中,中性层200a也可以包括第二结构层250,或者,中性层200a也可以包括第二结构层250和第三结构层260。
需要说明的是,由于显示屏200为多层叠层结构,且各个结构层的材料不同,各个结构层的拉伸形变量也会有所不同。在可折叠终端1000折叠过程中,部分结构层会被拉伸,部分结构层会被压缩。在可折叠终端1000折叠过程中,中性层200a为显示屏200中既不会被拉伸,也不会被压缩的层结构,或者,中性层200a也可以为显示屏200中拉伸形变量和压缩形变量均较小的层结构。
请参阅图5和图6,图5是图3所示可折叠终端1000中转动机构130的结构示意图,图6是图5所示转动机构130沿II-II处剖开的剖面结构示意图。
本实施例中,转动机构130具有对称面O,转动机构130关于对称面O镜像对称,以保证转动机构130的转动稳定性。在其他一些实施例中,转动机构130也可以不具有对称面O,本申请对转动机构130是否具有对称性不作具体限定。具体的,转动机构130包括外壳10、限位基座20、第一摆臂30和第二摆臂40。限位基座20、第一摆臂30和第二摆臂40均安装于外壳10的内侧。限位基座20设有第一弧形槽201和第二弧形槽202。第一摆臂30滑动安装于第一弧形槽201,且可相对于限位基座20转动。第二摆臂40滑动安装于第二弧形槽202,且可相对于限位基座20转动。
其中,第一摆臂30和第二摆臂40相对限位基座20转动的转动方向相反。示例性的,第一摆臂30相对限位基座20沿顺时针方向(图示ω 1方向)转动,第二摆臂40相对限位基座20沿逆时针方向(图示ω 2方向)转动。此时,第一摆臂30和第二摆臂40相对限位基座20转动以相对折叠。或者,第一摆臂30相对限位基座20沿逆时针方向转动,第二摆臂40相对限位基座20沿顺时针方向转动。此时,第一摆臂30和第二摆臂40相对限位基座20转动以相对展开。
示例性的,限位基座20设有两个第一弧形槽201和两个第二弧形槽202。转动机构130包括两个第一摆臂30和两个第二摆臂40。两个第一弧形槽201沿Y轴方向彼此间隔排布,两个第二弧形槽202沿Y轴方向彼此间隔排布。两个第一摆臂30分别滑动安装于两个第一弧形槽201,且沿Y轴方向彼此间隔排布。两个第二摆臂40分别滑动安装于两个第二弧形槽202,且沿Y轴方向彼此间隔排布。在其他一些实施例中,第一弧形槽201、第二弧形槽202、第一摆臂30和第二摆臂40也可以有一个或三个以上,本申请实施例对此不作具体限定。
本实施例中,限位基座20包括下限位块21和上限位块22,上限位块22安装于下限位块21,且与下限位块21围合形成第一弧形槽201和第二弧形槽202。具体的,下限位块21包括第一下限位块23和第二下限位块24。沿X轴方向上,第一下限位块23和第二下限位块24彼此间隔排布。上限位块22包括第一上限位块25和第二上限位块26。第一上限位块25均安装于第一下限位块23,且与第一下限位块23围合形成第一弧形槽201。第二上限位块26安装于第二下限位块24,且与第二下限位块24围合形成第二弧形槽202。其中,沿X轴方向上,第一弧形槽201和第二弧形槽202彼此间隔排布。沿Y轴方向上,第一弧形槽201和第二弧形槽202全部重叠排布。
需要说明的是,重叠排布是指投影重叠。比如,沿Y轴方向上,第一弧形槽201和第二弧形槽202全部重叠排布是指,第一弧形槽201和第二弧形槽202在Y-Z轴平面上的投影全部重叠。后文中提及的重叠排布可做相同理解。
在其他一些实施例中,沿X轴方向上,第一弧形槽201和第二弧形槽202也可重叠排布,以减小转动机构130沿X轴方向上的尺寸。或者,沿Y轴方向上,第一弧形槽201和第二弧形槽202也可以彼此间隔排布。
第一下限位块23设有第一滑槽231,第一滑槽231的开口位于第一下限位块23的顶面。第一滑槽231自第一下限位块23的顶面向底面的方向凹陷。其中,第一滑槽231为圆弧形滑槽,第一滑槽231的槽底壁为圆弧形面。示例性的,第一滑槽231有两个,沿Y轴方向上,两个第一滑槽231彼此间隔排布。
第一上限位块25安装于第一滑槽231的顶侧。第一上限位块25的底面为与第一滑槽231的槽底壁相配合的弧形面,以使第一上限位块25与第一限位块11围合形成第一弧形槽201。其中,第一上限位块25的底面的轴心与第一滑槽231的槽底壁的轴心重合。示例性的,第一上限位块25有两个,沿Y轴方向上,两个第一上限位块25彼此间隔排布。两个第一上限位块25分别安装于两个第一滑槽231的顶侧,且分别与两个第一滑槽231围合形成两个第一弧形槽201。
在其他一些实施例中,两个第一上限位块25可与第一下限位块23一体成型,或者, 两个第一上限位块25可与第一下限位块23通过组装的方式形成一体化结构,以增强转动机构130的整体强度。
第二下限位块24设有第二滑槽241,第二滑槽241的开口位于第二下限位块24的顶面。第二滑槽241自第二下限位块24的顶面向底面的方向凹陷。其中,第二滑槽241为圆弧形滑槽,第二滑槽241的槽底壁为弧形面。示例性的,第二滑槽241有两个,沿Y轴方向上,两个第二滑槽241彼此间隔排布。
第二上限位块26安装于第二滑槽241的顶侧。第二上限位块26的底面为与第二滑槽241的槽底壁相配合的弧形面,以使第二上限位块26与第二下限位块24围合形成第二弧形槽202。其中,第二上限位块26的底面的轴心与第二滑槽241的槽底壁的轴心重合。示例性的,第二上限位块26有两个,沿Y轴方向上,两个第二上限位块26彼此间隔排布。两个第二上限位块26分别安装于两个第二滑槽241的顶侧,且分别与两个第二滑槽241围合形成两个第二弧形槽202。
在其他一些实施例中,两个第二上限位块26可与第二下限位块24一体成型,或者,两个第二上限位块26可与第二下限位块24通过组装的方式形成一体化结构,以增强转动机构130的整体强度。
第一摆臂30包括第一转轴部31和第一摆动部32,第一转轴部31位于第一摆臂30的一端,第一摆动部32位于第一转轴部31的一侧,且与第一转轴部31固定连接。第一转轴部31呈圆弧形板状,第一摆动部32呈平面板状。其中,第一转轴部31朝背离第一摆动部32的顶面的方向凸出,且与第一弧形槽201相适配。
具体的,第一转轴部31滑动安装于第一弧形槽201,且可相对限位基座20转动。其中,第一转轴部31夹持于第一下限位块23和第一上限位块25之间。即,沿Z轴方向上,第一下限位块23和第一上限位块25共同限位第一转轴部31,防止第一转轴部31从第一弧形槽201内滑落,保证第一转轴部31相对限位基座20的转动可靠性,进而保证转动机构130的使用可靠性。
需要说明的是,第一转轴部31与第一弧形槽201相适配是指,第一转轴部31可在第一弧形槽201内滑动,以实现第一转轴部31与限位基座20之间的相对转动。后文所提及的相适配可作相同理解。
第一摆动部32相对于第一弧形槽201伸出。其中,第一摆动部32相对于第一下限位块23的左侧面伸出。第一摆动部32相对限位基座20转动时,带动第一转轴部31在第一弧形槽201内滑动,以实现第一转轴部31相对限位基座20的转动,从而实现第一摆臂30相对限位基座20的转动。
本实施例中,第二摆臂40与第一摆臂30的结构大致相同。第二摆臂40包括第二转轴部41和第二摆动部42,第二转轴部41位于第二摆臂40的一端,第二摆动部42位于第二转轴部41的一侧,且与第二转轴部41固定连接。第二转轴部41呈圆弧形板状,第二摆动部42呈平面板状。其中,第二转轴部41朝背离第二摆动部42的顶面的方向凸出,且与第二弧形槽202相适配。
具体的,第二转轴部41滑动安装于第二弧形槽202,且可相对限位基座20转动。其中,第二转轴部41夹持于第二下限位块24和第二上限位块26之间。即,沿Z轴方向上, 第二下限位块24和第二上限位块26共同限位第二转轴部41,防止第二转轴部41从第二弧形槽202内滑落,保证第二转轴部41相对限位基座20的转动可靠性,进而保证转动机构130的使用可靠性。
第二摆动部42相对于第二弧形槽202伸出。其中,第二摆动部42相对第二下限位块24的右侧面伸出。第二摆动部42相对限位基座20转动时,带动第二转轴部41在第二弧形槽202内滑动,以实现第二转轴部41相对限位基座20的转动,从而实现第二摆臂40相对限位基座20的转动。
此时,第二摆动部42和第一摆动部32之间的夹角为α。沿X轴方向上,第一转轴部31和第二转轴部41间隔排布。沿Y轴方向上,第一转轴部31和第二转轴部41全部重叠排布,有助于减小转动机构130沿Y轴方向上的尺寸,实现转动机构130的小型化设计。
在其他一些实施例中,沿X轴方向上,第一转轴部31和第二转轴部41也可以部分重叠排布或全部重叠排布,有助于减小转动机构130沿X轴方向上的尺寸,实现转动机构130的小型化设计。或者,沿Y轴方向上,第一转轴部31和第二转轴部41也可以部分重叠排布或者间隔排布,本申请对此不作具体限定。
请参阅图3和图7,图7是图2所示可折叠终端1000沿III-III处剖开的剖面结构示意图。
可折叠装置100处于展平状态时,转动机构130安装于收容空间1001。部分转动机构130安装于第一壳体110的第一收容槽1101,部分转动机构130安装于第二壳体120的第二收容槽1201。具体的,第一摆臂30固定连接于第一壳体110,第二摆臂40固定连接于第二壳体120。其中,第一摆动部32固定连接于第一壳体110,第二摆动部42固定连接于第二壳体120。示例性的,第一摆臂30可通过螺钉或者螺栓等方式与第一壳体110固定连接,第二摆臂40可通过螺钉或者螺栓等方式与第二壳体120固定连接。第一壳体110和第二壳体120相对折叠或相对展开时,第一壳体110带动第一摆臂30相对限位基座20转动,第二壳体120带动第二摆臂40相对限位基座20转动。
此时,第一摆动部32的顶面和第二摆动部42的顶面齐平,第一摆动部32的顶面和第二摆动部42的顶面共同形成支撑面1301,支撑面1301可支撑显示屏200的可弯折部分230,以保证显示屏200的良好显示。示例性的,可弯折部分230可通过粘接层300安装于支撑面1301。其中,第一摆动部32的顶面与第一壳体110的顶面齐平,第二摆动部42的顶面与第二壳体120的顶面齐平,以使第一摆动部32和第二摆动部42可与第一壳体110和第二壳体120共同支撑显示屏200,实现展平态的可折叠装置100对显示屏200的有效支撑。
此外,转动机构130还可以包括传动件(图未示),传动件连接于第一摆臂30和第二摆臂40之间,以在第一摆臂30相对限位基座20转动的同时,带动第二摆臂40相对限位基座20转动,或者,在第二摆臂40相对限位基座20转动的同时,带动第一摆臂30相对限位基座20转动,以实现第一摆臂30和第二摆臂40相对限位基座20的同步转动。示例性的,传动件可为齿轮或其他可实现传动的部件。
需要说明的是,现有的转动机构中,各个摆臂的转轴部均为连续的弧形板状,转动机构折叠或展开的过程中,各个摆臂的旋转过程无法与显示屏的弯折过程相匹配,转动机构极易对显示屏造成拉扯,导致显示屏受力出现褶皱的问题,影响可折叠终端的使用可靠性。
本申请实施例所示转动机构130中,将第一转轴部31和第二转轴部41设计成非连续的弧形板状,在可折叠终端1000折叠的过程中,第一摆臂30和第二摆臂40相对限位基座20的旋转过程可与显示屏200的弯折过程相匹配,可避免转动机构130对显示屏200造成拉扯,避免显示屏200受力出现褶皱的问题,保证可折叠终端1000的使用可靠性。
接下来,对本申请实施例所示转动机构130中第一摆臂30和第二摆臂40的结构进行具体的说明。
请参阅图8,图8是图7所示可折叠终端1000在第一种实施方式下第一摆臂30的结构示意图。
第一转轴部31包括沿第一转轴部31的周向分布的三个弧形部分,三个弧形部分依次连接。三个弧形部分分别为第一弧形部分33、第二弧形部分34和第五弧形部分35。第一弧形部分33位于第一转轴部31远离第一摆动部32的一端,第五弧形部分35位于第一转轴部31靠近第一摆动部32的一端,且与第一摆动部32固定连接,第二弧形部分34连接于第一弧形部分33和第五弧形部分35之间。在其他一些实施方式中,第一转轴部31也可以包括两个或四个以上弧形部分,本申请对此不作具体限定。
本实施方式中,第一弧形部分33的轴心为C 1,第一弧形部分33的半径为R 1。第二弧形部分34的轴心为C 2,第二弧形部分34的半径为R 2。第五弧形部分35的轴心为C 3,第五弧形部分35的半径为R 3。具体的,第一弧形部分33的轴心C 1、第二弧形部分34的轴心C 2和第五弧形部分35的轴心C 3彼此间隔。即,第一弧形部分33的轴心C 1、第二弧形部分34的轴心C 2和第五弧形部分35的轴心C 3不重合。其中,第一弧形部分33的轴心C 1和第二弧形部分34的轴心C 2均位于第五弧形部分35的轴心C 3的底侧,第一弧形部分33的轴心C 1位于第二弧形部分34的轴心C 2的底侧。
在其他一些实施方式中,第二弧形部分34的轴心C 2也可以位于第一弧形部分33的轴心C 1的底侧。或者,第一弧形部分33的轴心C 1和第五弧形部分35的轴心C 3也可以均位于第二弧形部分34的轴心C 2的底侧,第五弧形部分35的轴心C 3位于第一弧形部分33的轴心C 1的底侧,或,第一弧形部分33的轴心C 1位于第五弧形部分35的轴心C 3的底侧。或者,第二弧形部分34的轴心C 2和第五弧形部分35的轴心C 3也可以均位于第一弧形部分33的轴心C 1的底侧,第二弧形部分34的轴心C 2位于第五弧形部分35的轴心C 3的底侧,或,第五弧形部分35的轴心C 3位于第二弧形部分34的轴心C 2的底侧。
此外,第一弧形部分33的半径R 1、第二弧形部分34的半径R 2和第五弧形部分35的半径R 3相等。在其他一些实施方式中,第一弧形部分33的半径R 1可以与第二弧形部分34的半径R 2相等,而不与第五弧形部分35的半径R 3相等,或者,第一弧形部分33的半径R 1可以与第五弧形部分35的半径R 3相等,而不与第五弧形部分35的半径R 3相等,或者,第二弧形部分34的半径R 2可以与第五弧形部分35的半径R 3相等,而不与第一弧形部分33的半径R 1的半径R 3相等,或者,第一弧形部分33的半径R 1、第二弧形部分34的半径R 2和第五弧形部分35的半径R 3均不相等。
请参阅图7和图9,图9是图7所示可折叠终端1000在第一种实施方式下的局部结构示意图。其中,图9仅示出了显示屏200、第一弧形部分33的轴心C 1、第二弧形部分34的轴心C 2和第五弧形部分35的轴心C 3
本实施方式中,第一弧形部分33的轴心C 1、第二弧形部分34的轴心C 2和第五弧形部分35的轴心C 3均位于显示屏200内。具体的,第一弧形部分33的轴心C 1、第二弧形部分34的轴心C 2和第五弧形部分35的轴心C 3分别位于显示屏200的不同层内。其中,第一弧形部分33的轴心C 1位于第三结构层260内,第二弧形部分34的轴心C 2位于第二结构层250内,且位于第一弧形部分33的轴心C 1远离第二摆臂40的一侧,第五弧形部分35的轴心C 3位于第一结构层240内,且位于第二弧形部分34的轴心C 2远离第二摆臂40的一侧。
在其他一些实施方式中,第一弧形部分33的轴心C 1也可以位于显示屏200的第五结构层280、第四结构层270、第二结构层250或第一结构层240内,或者,第二弧形部分34的轴心C 1也可以位于显示屏200的第五结构层280、第四结构层270、第三结构层260或第一结构层240内,或者,第五弧形部分35的轴心C 3也可以位于显示屏200的第五结构层280、第四结构层270、第三结构层260或第二结构层250内,本申请对此不作具体限定。
本实施方式中,第二摆臂40和第一摆臂30的结构大致相同。第二转轴部41包括沿第二转轴部41的周向分布的三个弧形部分,三个弧形部分依次连接。三个弧形部分分别为第三弧形部分、第四弧形部分和第六弧形部分(图未示)。第三弧形部分位于第二转轴部41远离第二摆动部42的一端,第六弧形部分位于第二转轴部41靠近第二摆动部42的一端,且与第二摆动部42固定连接,第四弧形部分连接于第三弧形部分和第六弧形部分之间。
具体的,第三弧形部分的轴心位于第一结构层240,第四弧形部分的轴心位于第二结构层250,且位于第三弧形部分的轴心远离第一摆臂30的一侧,第六弧形部分的轴心位于第三结构层260,且位于第四弧形部分的轴心远离第一摆臂30的一侧。需要说明的是,第三弧形部分的结构与第一弧形部分33的结构大致相同,第四弧形部分的结构与第二弧形部分34的结构大致相同,第六弧形部分的结构与第五弧形部分35的结构大致相同,因此第三弧形部分、第四弧形部分和第六弧形部分的具体结构可分别参照上文第一弧形部分33、第二弧形部分34和第五弧形部分35的描述,在此不再赘述。
本实施方式中,由于第一弧形部分33的轴心C 1第一结构层240,第二弧形部分34的轴心C 2位于第二结构层250,且位于第一弧形部分33的轴心C 1远离第二摆臂40的一侧,第五弧形部分35的轴心C 3位于第三结构层260,且位于第二弧形部分34的轴心C 2远离第二摆臂40的一侧。在可折叠终端1000折叠过程中,第一结构层240和第二结构层250的拉伸形变量可减少至与第三结构层260的拉伸形变量相匹配,提高第一结构层240、第二结构层250和第三结构层260之间的匹配度,因此第一摆臂30和第二摆臂40相对限位基座20的旋转过程均可与显示屏200的弯折过程相匹配,可以减小转动机构130对显示屏200的拉扯,避免显示屏200受拉扯而出现褶皱的问题,保证可折叠终端1000的使用可靠性。
请参阅图7和图10,图10是图7所示可折叠终端1000在第二种实施方式下的局部结构示意图。其中,图10仅示出了显示屏200、第一弧形部分33的轴心C 1、半径R 1、第二弧形部分34的轴心C 2、半径R 2、第五弧形部分35的轴心C 3和半径R 3
本实施方式所示可折叠终端1000与上述第一种实施方式所示可折叠终端1000的不同之处在于,第一弧形部分33的半径R 1与第二弧形部分34的半径R 2不相等,第二弧形部 分34的半径R 2与第五弧形部分35的半径R 3不相等。示例性的,第一弧形部分33的半径R 1大于第二弧形部分34的半径R 2,第二弧形部分34的半径R 2大于第五弧形部分35的半径R 3
其中,第一弧形部分33的曲率与第二弧形部分34的曲率相切设计,即第一弧形部分33的半径R 1与第二弧形部分34的半径R 2之间的差值在0.1mm~10cm之间。第二弧形部分34的曲率与第五弧形部分35的曲率相切设计,即第二弧形部分34的半径R 2与第五弧形部分35的半径R 3之间的差值在0.1mm~10cm之间。第二弧形部分34的曲率与第一弧形部分33曲率和第五弧形部分35的曲率均相切设计,可以在第一转轴部31相对限位基座20转动时,在保证避免拉扯显示屏200的同时,减小曲率变化的幅度,保证第一转轴部31相对限位基座20转动的流畅性。
本实施方式中,由于第一弧形部分33的轴心C 1第一结构层240,第二弧形部分34的轴心C 2位于第二结构层250,且位于第一弧形部分33的轴心C 1远离第二摆臂40的一侧,第五弧形部分35的轴心C 3位于第三结构层260,且位于第二弧形部分34的轴心C 2远离第二摆臂40的一侧。在可折叠终端1000折叠过程中,第一结构层240和第二结构层250的拉伸形变量可减少至与第三结构层260的拉伸形变量相匹配,提高第一结构层240、第二结构层250和第三结构层260之间的匹配度,因此第一摆臂30和第二摆臂40相对限位基座20的旋转过程均可与显示屏200的弯折过程相匹配,可以减小转动机构130对显示屏200的拉扯,避免显示屏200受拉扯而出现褶皱的问题,保证可折叠终端1000的使用可靠性。
请参阅图7和图11,图11是图7所示可折叠终端1000在第三种实施方式下的局部结构示意图。其中,图11仅示出了显示屏200、第一弧形部分33的轴心C 1、第二弧形部分34的轴心C 2和第五弧形部分35的轴心C 3
本实施方式所示可折叠终端1000与上述第一种实施方式所示可折叠终端1000的不同之处在于,第一弧形部分33的轴心C 1、第二弧形部分34的轴心C 2和第五弧形部分35的轴心C 3位于显示屏200的同一层。
在其他一些实施方式中,第一弧形部分33的轴心C 1和第二弧形部分34的轴心C 2可以位于显示屏200的同一层,而与第五弧形部分35的轴心C 3不同层。或者,第一弧形部分33的轴心C 1和第五弧形部分35的轴心C 3可以位于显示屏200的同一层,而与第二弧形部分34的轴心C 2不同层。或者,第二弧形部分34的轴心C 2和第五弧形部分35的轴心C 3位于显示屏200的同一层,而与第一弧形部分33的轴心C 1不同层,本申请对此不作具体限定。
具体的,第一弧形部分33的轴心C 1、第二弧形部分34的轴心C 2和第五弧形部分35的轴心C 3均位于显示屏200的中性层200a内,且彼此间隔。即,第一弧形部分33的轴心C 1、第二弧形部分34的轴心C 2和第五弧形部分35的轴心C 3均位于显示屏200的第三结构层260内。其中,第二弧形部分34的轴心C 2位于第一弧形部分33的轴心C 1和第五弧形部分35的轴心C 3之间。在其他一些实施方式中,第一弧形部分33的轴心C 1、第二弧形部分34的轴心C 2和第五弧形部分35的轴心C 3也可以均位于显示屏200的第五结构层280、第四结构层270、第二结构层250或第一结构层240内。
本实施方式中,由于第一弧形部分33的轴心C1、第二弧形部分34的轴心C2和第五弧形部分35的轴心C3均位于显示屏200的中性层200a内,且彼此间隔。在可折叠终端1000折叠过程中,第一摆臂30相对限位基座20旋转时旋转中心位于中性层200a,使得第一摆臂30相对限位基座20的旋转可与中性层200a的变化匹配,因此第一摆臂30和第二摆臂40的旋转过程可与显示屏200的弯折过程相匹配,可以减少转动机构130对显示屏200的拉扯,避免显示屏200受拉扯而出现褶皱的问题,保证可折叠终端1000的使用可靠性。
请参阅图7和图12,图12是图7所示可折叠终端1000在第四种实施方式下的局部结构示意图。其中,图12仅示出了显示屏200、第一弧形部分33的轴心C 1、半径R 1、第二弧形部分34的轴心C 2、半径R 2、第五弧形部分35的轴心C 3和半径R 3
本实施方式所示可折叠终端1000与上述第二种实施方式所示可折叠终端1000的不同之处在于,第一弧形部分33的轴心C 1、第二弧形部分34的轴心C 2和第五弧形部分35的轴心C 3均位于显示屏200的同一层,且相重合。
在其他一些实施方式中,第一弧形部分33的轴心C 1可与第二弧形部分34的轴心C 2重合,而与第五弧形部分35的轴心C 3不重合。或者,第一弧形部分33的轴心C 1可与第五弧形部分35的轴心C 3重合,而与第二弧形部分34的轴心C 2不重合。或者,第二弧形部分34的轴心C 2第一弧形部分33的轴心C 1可与第五弧形部分35的轴心C 3重合,而与第一弧形部分33的轴心C 1不重合,本申请对此不作具体限定。
具体的,第一弧形部分33的轴心C 1、第二弧形部分34的轴心C 2和第五弧形部分35的轴心C 3均位于显示屏200的中性层200a内,且相重合。即,第一弧形部分33的轴心C 1、第二弧形部分34的轴心C 2和第五弧形部分35的轴心C 3均位于第三结构层260。在其他一些实施方式中,第一弧形部分33的轴心C 1、第二弧形部分34的轴心C 2和第五弧形部分35的轴心C 3均位于显示屏200的也可以均位于显示屏200的第一结构层240、第二结构层250、第四结构层270或第五结构层280。
本实施方式中,由于第一弧形部分33的轴心C1、第二弧形部分34的轴心C2和第五弧形部分35的轴心C3均位于显示屏200的中性层200a内,且彼此间隔。在可折叠终端1000折叠过程中,第一摆臂30相对限位基座20旋转时旋转中心位于中性层200a,使得第一摆臂30相对限位基座20的旋转可与中性层200a的变化匹配,因此第一摆臂30和第二摆臂40的旋转过程可与显示屏200的弯折过程相匹配,可以减少转动机构130对显示屏200的拉扯,避免显示屏200受拉扯而出现褶皱的问题,保证可折叠终端1000的使用可靠性。
需要说明的是,在其他一些实施例中,第二摆臂40的结构也可以与第一摆臂30的结构不同。比如,第一摆臂30采用上述第一种实施方式所示第一摆臂30的结构,而第二摆臂40采用上述第二种、第三种或第四种实施方式所示第一摆臂30的结构,或者,第二摆臂40不采用上述任一种实施方式所示第一摆臂30的结构,在可折叠终端1000折叠过程中,转动机构130同样可以减少对显示屏200的拉扯,避免显示屏200受拉扯而出现褶皱的问题,保证可折叠终端1000的使用可靠性。
以上描述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟 悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内;在不冲突的情况下,本申请的实施例及实施例中的特征可以相互组合。因此,本申请的保护范围应以权利要求的保护范围为准。

Claims (26)

  1. 一种转动机构,用于可折叠终端中,所述可折叠终端包括显示屏,所述显示屏包括中性层,其特征在于,所述转动机构包括限位基座、第一摆臂和第二摆臂,所述限位基座设有第一弧形槽和第二弧形槽;
    所述第一摆臂包括第一转轴部,所述第一转轴部滑动安装于所述第一弧形槽,且可相对所述限位基座转动,所述第二摆臂包括第二转轴部,所述第二转轴部滑动安装于所述第二弧形槽,且可相对所述限位基座转动,所述第一转轴部和所述第二转轴部相对所述限位基座转动的转动方向相反;
    其中,所述第一转轴部包括沿所述第一转轴部的周向分布的第一弧形部分和第二弧形部分,所述第一弧形部分和所述第二弧形部分固定连接,所述第一弧形部分的轴心与所述第二弧形部分的轴心均位于所述中性层,且相重合,所述第一弧形部分的半径与所述第二弧形部分的半径不同。
  2. 根据权利要求1所述的转动机构,其特征在于,所述第一弧形部分的半径与所述第二弧形部分的半径之差在0.1mm~10cm之间。
  3. 根据权利要求1或2所述的转动机构,其特征在于,所述第二转轴部包括沿所述第二转轴部的周向分布的第三弧形部分和第四弧形部分,所述第三弧形部分与所述第四弧形部分固定连接,所述第三弧形部分的轴心和所述第四弧形部分的轴心均位于所述中性层,且相重合,所述第三弧形部分的半径与所述第四弧形部分的半径不同。
  4. 根据权利要求3所述的转动机构,其特征在于,所述第三弧形部分的半径与所述第四弧形部分的半径之差在0.1mm~10cm之间。
  5. 根据权利要求3或4所述的转动机构,其特征在于,所述第一转轴部还包括沿所述第一转轴部的周向分布的第五弧形部分,所述第五弧形部分固定连接于所述第二弧形部分远离所述第一弧形部分的一端,所述第五弧形部分的轴心与所述第二弧形部分的轴心重合,所述第三弧形部分的半径与所述第二弧形部分的半径不同;
    所述第二转轴部还包括沿所述第二转轴部的周向分布的第六弧形部分,所述第六弧形部分与所述第四弧形部分固定连接,所述第六弧形部分的轴心与所述第四弧形部分的轴心重合,所述第六弧形部分的半径与所述第四弧形部分的半径不同。
  6. 根据权利要求5所述的转动机构,其特征在于,所述第五弧形部分的半径与所述第二弧形部分的半径之差在0.1mm~10cm之间,所述第六弧形部分的半径与所述第四弧形部分的半径之差在0.1mm~10cm之间。
  7. 根据权利要求1至6中任一项所述的转动机构,其特征在于,所述第一摆臂还包括 与所述第一转轴部固定连接的第一摆动部,所述第一摆动部相对所述第一弧形槽伸出;
    所述第二摆臂还包括与所述第二转轴部固定连接的第二摆动部,所述第二摆动部相对所述第二弧形槽伸出。
  8. 根据权利要求1至7中任一项所述的转动机构,其特征在于,所述限位基座包括下限位块和上限位块,所述上限位块安装于所述下限位块,且与所述下限位块围合形成所述第一弧形槽和所述第二弧形槽。
  9. 一种转动机构,用于可折叠终端中,所述可折叠终端包括显示屏,所述显示屏包括中性层,其特征在于,所述转动机构包括限位基座、第一摆臂和第二摆臂,所述限位基座设有第一弧形槽和第二弧形槽;
    所述第一摆臂包括第一转轴部,所述第一转轴部滑动安装于所述第一弧形槽,且可相对所述限位基座转动,所述第二摆臂包括第二转轴部,所述第二转轴部滑动安装于所述第二弧形槽,且可相对所述限位基座转动,所述第一转轴部和所述第二转轴部相对所述限位基座转动的转动方向相反;
    其中,所述第一转轴部包括沿所述第一转轴部的周向分布的第一弧形部分和第二弧形部分,所述第一弧形部分和所述第二弧形部分固定连接,所述第一弧形部分的轴心与所述第二弧形部分的轴心均位于所述中性层,且彼此间隔。
  10. 根据权利要求9所述的转动机构,其特征在于,所述第一弧形部分的半径与所述第二弧形部分的半径相同,或者,所述第一弧形部分的半径与所述第二弧形部分的半径不同,所述第一弧形部分的半径与所述第二弧形部分的半径之差在0.1mm~10cm之间。
  11. 根据权利要求9或10所述的转动机构,其特征在于,所述第二转轴部包括沿所述第二转轴部的周向分布的第三弧形部分和第四弧形部分,所述第三弧形部分与所述第四弧形部分固定连接,所述第三弧形部分的轴心和所述第五弧形部分的轴心均位于所述中性层,且彼此间隔。
  12. 根据权利要求11所述的转动机构,其特征在于,所述第三弧形部分的半径与所述第四弧形部分的半径相同,或者,所述第三弧形部分的半径与所述第四弧形部分的半径不同,所述第三弧形部分的半径与所述第四弧形部分的半径之差在0.1mm~10cm之间。
  13. 根据权利要求11或12所述的转动机构,其特征在于,所述第一转轴部还包括沿所述第一转轴部的周向分布的第五弧形部分,所述第五弧形部分固定连接于所述第二弧形部分远离所述第一弧形部分的一端,所述第五弧形部分的轴心位于所述中性层,且与所述第二弧形部分的轴心彼此间隔;
    所述第二转轴部还包括沿所述第二转轴部的周向分布的第六弧形部分,所述第六弧形部分与所述第四弧形部分固定连接,所述第六弧形部分的轴心位于所述中性层,且与所述 第四弧形部分的轴心彼此间隔。
  14. 根据权利要求13所述的转动机构,其特征在于,所述第五弧形部分的半径与所述第二弧形部分的半径相同,或者,所述第三弧形部分的半径与所述第二弧形部分的半径不同,所述第三弧形部分的半径与所述第二弧形部分的半径之差在0.1mm~10cm之间;
    所述第六弧形部分的半径与所述第四弧形部分的半径相同,或者,所述第六弧形部分的半径与所述第四弧形部分的半径不同,所述第六弧形部分的半径与所述第四弧形部分的半径之差在0.1mm~10cm之间。
  15. 一种转动机构,用于可折叠终端中,所述可折叠终端包括显示屏,所述显示屏包括层叠设置的第一结构层和第二结构层,所述可折叠终端在折叠过程中,所述第一结构层的拉伸形变量大于所述第二结构层的拉伸形变量,其特征在于,所述转动机构包括限位基座、第一摆臂和第二摆臂,所述限位基座设有第一弧形槽和第二弧形槽;
    所述第一摆臂包括第一转轴部,所述第一转轴部滑动安装于所述第一弧形槽,且可相对所述限位基座转动,所述第二摆臂包括第二转轴部,所述第二转轴部滑动安装于所述第二弧形槽,且可相对所述限位基座转动,所述第一转轴部和所述第二转轴部相对所述限位基座转动的转动方向相反;
    其中,所述第一转轴部包括沿所述第一转轴部的周向分布的第一弧形部分和第二弧形部分,所述第一弧形部分和所述第二弧形部分固定连接,所述第一弧形部分的轴心位于所述第一结构层内,所述第二弧形部分的轴心位于所述第二结构层内,且位于所述第一弧形部分的轴心远离所述第二摆臂的一侧。
  16. 根据权利要求15所述的转动机构,其特征在于,所述第一弧形部分的半径与所述第二弧形部分的半径相同,或者,所述第一弧形部分的半径与所述第二弧形部分的半径不同,所述第一弧形部分的半径与所述第二弧形部分的半径之差在0.1mm~10cm之间。
  17. 根据权利要求15或16所述的转动机构,其特征在于,所述第二转轴部包括沿所述第二转轴部的周向分布的第三弧形部分和第四弧形部分,所述第三弧形部分与所述第四弧形部分固定连接,所述第三弧形部分的轴心位于所述第一结构层内,所述第四弧形部分的轴心位于所述第二结构层内,且位于所述第三弧形部分的轴心远离所述第一摆臂的一侧。
  18. 根据权利要求17所述的转动机构,其特征在于,所述显示屏还包括第三结构层,所述第三结构层、所述第一结构层和所述第二结构层层叠设置,所述可折叠终端在折叠过程中,所述第三结构层的拉伸形变量小于所述第二结构层的拉伸形变量;
    所述第一转轴部还包括沿所述第一转轴部的周向分布的第五弧形部分,所述第五弧形部分固定连接于所述第二弧形部分远离所述第一弧形部分的一端,所述第五弧形部分的轴心位于所述第三结构层内,且位于所述第二弧形部分的轴心远离所述第二摆臂的一侧;
    所述第二转轴部还包括沿所述第二转轴部的周向分布的第六弧形部分,所述第六弧形 部分固定连接于所述第四弧形部分远离所述第三弧形部分的一端,所述第六弧形部分的轴心位于所述第三结构层内,且位于所述第四弧形部分的轴心远离所述第一摆臂的一侧。
  19. 根据权利要求18所述的转动机构,其特征在于,所述第五弧形部分的半径与所述第二弧形部分的半径相同,或者,所述第五弧形部分的半径与所述第二弧形部分的半径不同,所述第三弧形部分的半径与所述第二弧形部分的半径之差在0.1mm~10cm之间;
    所述第六弧形部分的半径与所述第四弧形部分的半径相同,或者,所述第六弧形部分的半径与所述第四弧形部分的半径不同,所述第六弧形部分的半径与所述第四弧形部分的半径之差在0.1mm~10cm之间。
  20. 一种可折叠终端,其特征在于,包括第一壳体、第二壳体、显示屏和如权利要求1至14中任一项所述的转动机构,所述第一摆臂固定连接于所述第一壳体,所述第二摆臂固定连接于所述第二壳体,所述显示屏安装于所述第一壳体和所述第二壳体,所述显示屏包括所述中性层。
  21. 根据权利要求20所述的可折叠终端,其特征在于,所述显示屏包括多层结构层,所述中性层包括一层或多层所述结构层。
  22. 根据权利要求21所述的可折叠终端,其特征在于,所述显示屏包括依次层叠的基底层、显示功能层、偏光片、粘接层和保护层;
    所述中性层包括所述显示功能层,所述第一弧形部分的轴心和所述第二弧形部分的轴心均位于所述显示功能层,或者,所述中性层包括所述偏光片,所述第一弧形部分的轴心和所述第二弧形部分的轴心均位于所述偏光片内。
  23. 根据权利要求20至22中任一项所述的可折叠终端,其特征在于,所述显示屏包括第一显示部分、第二显示部分和可弯折部分,所述可弯折部分连接于所述第一显示部分和所述第二显示部分之间,所述第一显示部分安装于所述第一壳体,所述第二显示部分安装于所述第二壳体,所述可弯折部分与所述转动机构相对设置。
  24. 一种可折叠终端,其特征在于,包括第一壳体、第二壳体、显示屏和如权利要求15至17中任一项所述的转动机构,所述第一摆臂固定连接于所述第一壳体,所述第二摆臂固定连接于所述第二壳体,所述显示屏安装于所述第一壳体和所述第二壳体,所述显示屏包括所述第一结构层和所述第二结构层。
  25. 根据权利要求24所述的可折叠终端,其特征在于,所述显示屏还包括第三结构层,所述第三结构层、所述第一结构层和所述第二结构层层叠设置,所述可折叠终端在折叠过程中,所述第三结构层的拉伸形变量小于所述第二结构层的拉伸形变量;
    所述第一转轴部还包括沿所述第一转轴部的周向分布的第五弧形部分,所述第五弧形部分固定连接于所述第二弧形部分远离所述第一弧形部分的一端,所述第五弧形部分的轴 心位于所述第三结构层内,且位于所述第二弧形部分的轴心远离所述第二摆臂的一侧。
  26. 根据权利要求25所述的可折叠终端,其特征在于,所述显示屏包括依次层叠的基底层、显示功能层、偏光片、粘接层和保护层,所述基底层为所述第一结构层,所述显示功能层为所述第二结构层,所述偏光片为所述第三结构层。
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