WO2021017959A1 - 转动机构、折叠显示终端 - Google Patents

转动机构、折叠显示终端 Download PDF

Info

Publication number
WO2021017959A1
WO2021017959A1 PCT/CN2020/103366 CN2020103366W WO2021017959A1 WO 2021017959 A1 WO2021017959 A1 WO 2021017959A1 CN 2020103366 W CN2020103366 W CN 2020103366W WO 2021017959 A1 WO2021017959 A1 WO 2021017959A1
Authority
WO
WIPO (PCT)
Prior art keywords
structural member
rotating shaft
shaft
deformation
rotating
Prior art date
Application number
PCT/CN2020/103366
Other languages
English (en)
French (fr)
Inventor
刘勇
加藤秀夫
刘雨
马春军
彭乐雄
李中
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP20847563.2A priority Critical patent/EP3992751A4/en
Priority to US17/631,271 priority patent/US20220261040A1/en
Publication of WO2021017959A1 publication Critical patent/WO2021017959A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1641—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being formed by a plurality of foldable display components
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1679—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts for locking or maintaining the movable parts of the enclosure in a fixed position, e.g. latching mechanism at the edge of the display in a laptop or for the screen protective cover of a PDA
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681—Details related solely to hinges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
    • H04M1/022—The hinge comprising two parallel pivoting axes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel

Definitions

  • the embodiments of the present application relate to the field of display technology, in particular to a rotating mechanism and an intelligent terminal.
  • folding display terminals have gradually become a development trend of future mobile electronic products.
  • the folding display terminal In the unfolded state, the folding display terminal can obtain a larger display area and improve the viewing effect.
  • the foldable display terminal In the folded state, the foldable display terminal can obtain a smaller volume, which is convenient for users to carry.
  • the folding display terminal includes at least: a flexible screen and a rotating mechanism for carrying the flexible screen.
  • the rotating mechanism tends to generate a pulling force on the flexible screen when it is folded or unfolded, causing damage to the flexible screen and affecting user experience.
  • the embodiments of the present application provide a rotating mechanism and a folding display terminal, which solves the problem that the flexible screen is susceptible to pulling force and affects user experience.
  • the first aspect of the embodiments of the present application provides a rotating mechanism, the rotating mechanism includes: a rotating shaft; a first structural member, the first structural member is provided with The first sliding groove; the second structural member, the second structural member is provided with a second sliding groove; the third structural member, the first end of the third structural member is connected with the rotating shaft, the third structural member The second end of the fourth structural member is provided in the first chute; the fourth structural member, the first end of the fourth structural member is connected to the rotating shaft, and the second end of the fourth structural member is provided in the second Chute; when the first structural member and the second structural member rotate around the shaft, the second end of the third structural member slides relative to the first chute, and the fourth structural member The second end of the sliding groove slides relative to the second sliding groove.
  • the first structural member can slide relative to the third structural member, and the second structural member can slide relative to the fourth structural member, part of the bending force can be released, and the rotation process of the first structural member and the second structural member can be reduced
  • the pulling force on the flexible screen improves the flatness of the flexible screen.
  • the rotating shaft includes: a first rotating shaft and a second rotating shaft; the first rotating shaft and the second rotating shaft are connected; the first rotating shaft and the second rotating shaft are connected by a transmission structure
  • the third structural member is connected to the first end of the transmission structure; the fourth structural member is connected to the second end of the transmission structure; when the third structural member drives the first end of the transmission structure When one end rotates around the first shaft, the second end of the transmission structure drives the fourth structural member to rotate around the second shaft; or, when the fourth structural member drives the second end of the transmission structure around the second shaft When the second rotating shaft rotates, the first end of the transmission structure drives the third structural member to rotate around the first rotating shaft.
  • the transmission structure includes: a first gear sleeved on the first shaft, and a second gear sleeved on the second shaft, the first gear and The second gear meshes. Therefore, the rotating part is directly connected with the gear, and the length of the lever arm is about the radius of the rotating shaft plus the length of the rotating part. The lever arm is longer and the torque is larger, which can better transmit torque for the unfolding and folding of the rotating mechanism.
  • the rotation mechanism further includes: an elastic member, when the first structural member and the second structural member are in a folded state or an unfolded state, the elastic member undergoes a first deformation; When the first structural member and the second structural member are between the folded state and the unfolded state, the deformation of the elastic member becomes a second deformation; the amount of deformation of the second deformation is greater than that of the first deformation Shape variable. Therefore, when the elastic component changes from the second deformation to the first deformation, it can provide torque for the rotation of the first and second shafts.
  • the elastic member at least includes: a first elastic member disposed on the third structural member Components; the first rotating shaft is sleeved with a first cam; the third structural member is in contact with the first cam surface; when the first structural member rotates, the first cam is relative to the first cam A rotating shaft is stationary; the third structural member rotates along the surface of the first cam and around the first rotating shaft; the first cam has a first surface, a second surface and a third surface; when the first cam When the third structural member contacts the first surface or the second surface, the deformation of the first elastic member becomes the first deformation; when the third structural member contacts the third surface, the The deformation of the first elastic member becomes the second deformation.
  • the first rotating shaft can transmit the torque to the first structural member through the third structural member
  • the second rotating shaft can transmit the torque to the first structural member.
  • the fourth structural member is transferred to the second structural member, and finally acts on the flexible screen, thereby providing a closing force when the rotating mechanism is closed, making the folding process easier; providing appropriate resistance during the initial stage of the rotating mechanism from folding to flattening, Avoid unfolding the flexible screen too quickly; when the rotating mechanism is unfolded to a specific angle, it will start to provide appropriate assistance to realize automatic unfolding and provide unfolding retention force after unfolding.
  • the first elastic component and the second elastic component are springs or spring pads.
  • the rotating shaft includes: a first rotating shaft and a second rotating shaft, the first rotating shaft and the second rotating shaft are connected; the elastic member at least includes: sleeved on the first rotating shaft When the first structural member rotates, the first shaft rotates relative to the first C-shaped card; the inner side of the first C-shaped card has a first plane and a first curved surface,
  • the first axis of rotation includes a third plane and a fifth plane that match the first plane, and a second curved surface that matches the first curved surface; when the third plane or the fifth plane matches the When the first plane is in contact, the deformation of the first C-type card becomes the first deformation; when the second curved surface and the first plane are in contact, the deformation of the first C-type card becomes the first Second deformation.
  • torque can be provided for the rotation of the first rotating shaft and the second rotating shaft, and the first rotating shaft and the second rotating shaft can transmit the torque to the first through the third structural member and the fourth structural member.
  • the structural part and the second structural part finally act on the flexible screen to provide a holding force for the folding or flattening of the flexible screen.
  • the rotating shaft includes: a third rotating shaft; the elastic component includes at least: a second elastic component sleeved on the third rotating shaft; the third rotating shaft is also sleeved : A cam and a concave wheel, the cam is provided with a convex part, the concave wheel is provided with a flat part, and at least one concave part matching the convex part; when the first structural member rotates, the first The third structure and the concave wheel rotate relative to the first shaft, and the cam slides relative to the first shaft; when the convex part of the cam matches the at least one concave part, the second elastic part The deformation becomes the first deformation; when the convex portion of the cam contacts the flat portion, the deformation of the second elastic member becomes the second deformation.
  • the third elastic component provides torque for the rotation of the third structural member and the fourth structural member, and the mating position of the cam and the concave wheel can be used as the flattened position or the folded position of the flexible screen, which can be flexible
  • the folding or flattening of the screen provides retention.
  • the third elastic component is a disc spring or a spring washer.
  • the rotation mechanism further includes: an elastic component
  • the rotation shaft includes: a first rotation shaft and a second rotation shaft; the first rotation shaft and the second rotation shaft are connected by a transmission structure;
  • the third structural member is connected with the first end of the transmission structure;
  • the fourth structural member is connected with the second end of the transmission structure; when the third structural member drives the first end of the transmission structure around When the first shaft rotates, the second end of the transmission structure drives the fourth structure to rotate around the second shaft; or, when the fourth structure drives the second end of the transmission structure to rotate around the second shaft
  • the first end of the transmission structure drives the third structural member to rotate around the first shaft; when the third structural member and the fourth structural member are in the folded or unfolded state, the elastic
  • the deformation of the component becomes the first deformation; when the third structure component and the fourth structure component are between the folded state and the unfolded state, the deformation of the elastic component becomes the second deformation; the deformation of the second deformation
  • the variable is greater than the deformation amount of the first deformation
  • the rotation mechanism further includes: a fifth structural member; the fifth structural member is disposed on the first chute; the transmission structure includes: sleeved on the first rotating shaft And the second gear sleeved on the second shaft; the first gear meshes with the second gear; the elastic component includes: sleeved on the fifth structural member The first elastic member; the first rotating shaft is sleeved with a first cam; the fifth structural member is in contact with the first cam surface; when the first structural member rotates, the first cam is opposite The first rotating shaft is stationary; the fifth structural member rotates along the surface of the first cam and around the first rotating shaft. Therefore, a plurality of rotating parts share a rotating shaft, and the coupled structural part occupies a very small space, which is beneficial to the miniaturization of the rotating mechanism.
  • the rotating shaft further includes: a guiding inner shaft and a guiding outer shaft, and the guiding outer shaft is arranged on the guiding inner shaft; wherein the length of the guiding inner shaft is smaller than that of the guiding inner shaft.
  • the length of the outer shaft, the first end in the length direction of the guide outer shaft extends along the length direction relative to the first end in the length direction of the guide inner shaft, and the first shaft and the second shaft are arranged on the guide inner shaft between the first end in the longitudinal direction and the first end in the longitudinal direction of the guide outer shaft, the first shaft and the second shaft are arranged in the guide outer shaft to protect the first shaft and The second rotating shaft.
  • the outer side surface of the guiding inner shaft and the inner side surface of the guiding outer shaft are enclosed to form a slide; the side of the first structural member close to the rotating shaft is provided with a first rotating shaft The second structural member is provided with a second rotating member on one side close to the rotating shaft, and both the first rotating member and the second rotating member are located in the slideway; when the first structural member rotates At this time, the first rotating member and the second rotating member rotate around the guide inner shaft.
  • the coaxial rotation of the first structural member and the second structural member is realized.
  • a first support portion is sleeved on the third structural member, a first guide rod is provided on the first support portion, and the first chute is provided with The first guide rail is matched with the first guide rod;
  • the fourth structural member is sleeved with a second support part, the second support part is provided with a second guide rod, and the second chute is provided with a The second guide rail that matches the second guide rod; when the first structural member and/or the second structural member rotates around the shaft, the first guide rod slides along the first guide rail, and the The second guide rod slides along the second guide rail.
  • the first structural member includes: a first blade and a third blade, the first blade is provided with a first groove, and the third blade is provided with a first groove.
  • the second structural member includes: a second blade and a fourth blade, the second blade is provided with a second groove, and the fourth blade is provided with the A second sliding block that matches the second groove; when the first structure and the second structure rotate around the rotating shaft, the first sliding block slides in the first groove, and the The second sliding block slides in the second groove.
  • the sliding connection of the first blade and the third blade is realized, and the sliding connection of the second blade and the fourth blade is realized at the same time, which further reduces the impact on the flexible screen during the rotation of the first structural member and the second structural member.
  • the pulling force improves the flatness of the flexible screen.
  • a foldable display terminal including: a flexible screen, and the rotation mechanism as described above, a first area of the flexible screen is connected to the first structural member; The second area of the display screen is connected to the second structure; the third area of the flexible display screen is connected to the shaft; wherein, the third area is located between the first area and the second structure. Between regions.
  • the folding display terminal adopting the above-mentioned rotating mechanism receives less pulling force, which improves the flatness of the flexible screen.
  • FIG. 1 is a schematic structural diagram of a folding display terminal in the prior art
  • Fig. 1a is a diagram of the use state of the folding display terminal in Fig. 1;
  • Fig. 1b is a bent state diagram of the foldable display terminal in Fig. 1;
  • FIG. 1c is an unfolded state diagram of the folding display terminal in FIG. 1;
  • FIG. 2 is a schematic diagram of a three-dimensional structure of a rotating mechanism provided by an embodiment of the application
  • Figure 2a is a schematic structural view of the rotating mechanism in Figure 2;
  • Figure 2b is a schematic structural diagram of the folding display terminal in a bent state
  • Figure 2c is a schematic structural diagram of the folding display terminal in an unfolded state
  • FIG. 3 is a schematic structural diagram of another foldable display terminal provided by an embodiment of the application.
  • FIG. 3a is a schematic structural diagram of the foldable display terminal in FIG. 3 in a folded state
  • FIG. 3b is a schematic structural diagram of the folding display terminal in FIG. 3 in an unfolded state
  • FIG. 4 is a schematic structural diagram of another rotating mechanism provided by an embodiment of the application.
  • FIG. 5 is a schematic structural diagram of another folding display terminal provided by an embodiment of the application.
  • Figure 5a is a cross-sectional view of M-M in Figure 5;
  • Fig. 6 is a schematic diagram of the structure of the connector in Fig. 5;
  • Fig. 7a is a schematic structural diagram of a first rotating shaft in Fig. 5;
  • Fig. 7b is a schematic structural diagram of another first rotating shaft in Fig. 5;
  • Figure 8 is a working state diagram of the rotating mechanism in Figure 5;
  • FIG. 9 is a schematic structural diagram of another rotating mechanism provided by an embodiment of the application.
  • FIG. 10 is a schematic diagram of the structure of the rotating shaft in FIG. 9;
  • Figure 11 is a diagram of the mating state of the concave wheel and the cam in Figure 10;
  • Figure 12 is a schematic structural diagram of another rotating mechanism provided by an embodiment of the application.
  • Figure 13 is a schematic diagram of a disassembled structure of the rotating mechanism in Figure 12;
  • Fig. 14 is a schematic diagram of a structure of the rotating shaft in Fig. 12;
  • FIG. 15 is a schematic diagram of another disassembly structure of the rotating mechanism in FIG. 12;
  • Fig. 16 is a schematic diagram of another structure of the rotating shaft in Fig. 12;
  • Figure 17 is a sectional view of A-A in Figure 12;
  • Figure 17a is a folded state diagram of the rotating mechanism in Figure 17;
  • Figure 18 is a B-B cross-sectional view in Figure 12;
  • Figure 18a is a folded state diagram of the rotating mechanism in Figure 18;
  • Figure 19 is a schematic diagram of the structure of the shaft in Figure 12;
  • Figure 19a is a schematic diagram of the disassembled structure of the shaft in Figure 12;
  • FIG. 20 is a schematic structural diagram of another rotating mechanism provided by an embodiment of the application.
  • Fig. 20a is a schematic diagram of another structure of the rotating mechanism in Fig. 20;
  • Figure 21 is a C-C cross-sectional view of the rotating mechanism in Figure 20a;
  • 22 is a schematic structural diagram of another rotating mechanism provided by an embodiment of the application.
  • Figure 23 is a D-D sectional view of the rotating mechanism in Figure 22;
  • Figure 24 is a schematic view of the structure of the cam in Figure 23;
  • 25 is a schematic structural diagram of another rotating mechanism provided by an embodiment of the application.
  • Fig. 26 is a partial structural diagram of the rotating mechanism in Fig. 25;
  • Fig. 27 is a schematic diagram of another partial structure of the rotating mechanism in Fig. 25.
  • the embodiment of the present application provides a folding display terminal, which may be a product with a display interface such as a mobile phone, a display, a tablet computer, and a vehicle-mounted computer.
  • a folding display terminal which may be a product with a display interface such as a mobile phone, a display, a tablet computer, and a vehicle-mounted computer.
  • the embodiment of the present application does not impose special restrictions on the specific form of the above-mentioned folding display terminal.
  • the foldable display terminal 01 includes a flexible screen 10.
  • the flexible screen 10 may be an active matrix organic light emitting diode (AMOLED) display screen.
  • AMOLED active matrix organic light emitting diode
  • the AMOLED display does not need to be equipped with a backlight module (BLM). Therefore, when the base substrate in the AMOLED display screen is made of a flexible resin material, such as polyethylene terephthalate (PET), the AMOLED display screen can have a bendable characteristic.
  • BBM backlight module
  • the foldable display terminal 01 also includes a rotating mechanism 20 for carrying the flexible screen 10.
  • the rotation mechanism 20 includes a first structure 201, a second structure 202, and a rotating shaft 203 located between the first structure 201 and the second structure 202.
  • the rotating shaft 203 is connected with the first structure 201 and the second structure 202.
  • the first structure 201 and the second structure 202 can rotate around the rotating shaft 203 respectively.
  • the first structural member 201 and the second structural member 202 may be a casing or a middle frame structure of an electronic device.
  • the first structural member 201 and the second structural member 202 can be used to carry the flexible screen 10 so that the flexible screen 10 is kept as flat as possible during use, and the non-display surface of the flexible screen 10 is protected.
  • a part of the flexible screen 10 is fixed to the first structural member 201 through the adhesive layer 30, a part is fixed to the second structural member 202 through the adhesive layer 30, and a part is fixed to the rotating shaft 203 through the adhesive layer 30.
  • the glue layer 30 may be a thin film layer formed after applying glue, and the specific form of the glue layer 30 is not limited in the embodiment of the present application.
  • the first structural member 201 and the second structural member 202 may also be provided with other electronic components, such as cameras, earphones, earpieces, buttons, batteries, etc.
  • the embodiment of the present application is related to the first structural member 201 and the second structure
  • the other electronic components set on the component 202 are not limited.
  • the first structure 201 and the second structure 202 can respectively rotate along the axis O-O of the rotating shaft 203, thereby driving the flexible screen 10 to fold or unfold.
  • the flexible screen can be bent and flattened.
  • Figure 1a shows the flattening process of the flexible screen from 180° to 0°, or the folding process from 0° to 180°.
  • the area on the flexible screen 10 that is connected to the first structural member 201, the second structural member 202, and the rotating shaft 203 through the adhesive layer 30 It will be pulled when folded and unfolded, which will affect the flatness of the flexible screen.
  • the embodiment of the present application provides an improved rotating mechanism.
  • the rotation mechanism further includes a third structure 204 and a fourth structure 214.
  • the first structural member 201 is provided with a first sliding groove 2011, and the second structural member 202 is provided with a second sliding groove 2021.
  • the third structural member 204 and the fourth structural member 214 may be rotating members with a cylindrical structure, and the cross-sections of the third structural member 204 and the fourth structural member 214 are, for example, circular or polygonal.
  • the embodiment does not limit the cross-sectional shapes of the third structural member and the fourth structural member.
  • the first end of the third structural member 204 is rotatably connected with the rotating shaft 203, and the second end, as shown in FIG. 2, can extend into the first sliding groove 2011 and be slidably connected with the first sliding groove 2011. So that when the first structural member 201 rotates around the axis OO of the rotating shaft 203, the first structural member 201 relative to the third structural member 204 can slide a preset distance in a direction approaching or away from the rotating shaft 203 .
  • the first end of the fourth structural member 214 is rotatably connected with the rotating shaft 203, and the second end can extend into the second sliding groove 2021 and be slidably connected with the second sliding groove 2021. Therefore, when the second structural member 202 rotates around the axis O-O of the rotating shaft 203, the second structural member 202 can slide in a direction approaching or away from the rotating shaft 203 relative to the fourth structural member 214.
  • the embodiment of the present application does not limit the connection manner of the third structural member 204 and the first sliding groove 2011 and the connection manner of the fourth structural member 214 and the second sliding groove 2021, and only a sliding connection is required.
  • the end of the second end of the third structural member 204 is provided with a first support portion 2044, and the first support portion 2044 is also provided with a first guide rod 2045,
  • the axis of the guide rod 2045 is perpendicular to the axis of the third structural member 204, and first guide rails 2014 matching the first guide rod 2045 are provided on both sides of the first sliding groove 2011.
  • first guide rod 2045 can slide along the first guide rail 2014.
  • the end of the second end of the fourth structural member 214 is provided with a second support portion 2144, the second support portion 2144 is provided with a second guide rod 2145, and the axis of the second guide rod 2145 is
  • the axial direction of the fourth structural member 214 is vertical, and second guide rails 2024 matching the second guide rod 2145 are provided on both sides of the second sliding groove 2021.
  • the second guide rod 2145 can slide along the second guide rail 2024.
  • the first structural member 201 slides in a direction close to the rotating shaft 203 relative to the third structural member 204, and the second structural member 202 is relative to the fourth structure
  • the member 214 slides in a direction close to the rotating shaft 203.
  • the first structural member 201 can slide relative to the third structural member 204, and the second structural member 214 can slide relative to the fourth structural member 214, which can release part of the bending force and reduce the pulling force on the flexible screen. Avoid excessive pulling force on the flexible screen during the bending process.
  • the first structural member 201 slides in a direction away from the rotating shaft 203 relative to the third structural member 204; the second structural member 202 is relative to the fourth structure
  • the piece 214 slides in a direction away from the rotating shaft 203.
  • the first structural member 201 can slide relative to the third structural member 204, and the second structural member 214 can slide relative to the fourth structural member 214, which can release part of the stretching force, reduce the pulling force on the flexible screen, and avoid Excessive pulling force on the flexible screen during stretching.
  • the third structural member is slidably connected with the first structural member
  • the fourth structural member is slidably connected with the second structural member, thereby reducing the first structural member and the first structural member.
  • the first structure 201 includes: a first blade 2010 and a third blade 2019 that are sequentially arranged in a direction away from the rotating shaft 203
  • the second structural member 202 includes: a second blade 2020 and a fourth blade 2029 that are sequentially arranged in a direction away from the rotating shaft 203.
  • a part of the flexible screen 10 is fixed to the third blade 2019 through the adhesive layer 30, a part is fixed to the fourth blade 2029 through the adhesive layer 30, and a part is fixed to the rotating shaft 203 through the adhesive layer 30.
  • the first blade is further provided with a first groove 2018, and a position of the third blade 2019 close to the first groove 2018 is provided with a first sliding block 20191 matching the first groove 2018.
  • the first sliding block 20191 extends into the first groove 2018 and is slidably connected to the first groove 2018. Therefore, when the first structural member 201 rotates around the axis O-O of the rotating shaft 203, the third blade 2019 can slide a predetermined distance in a direction approaching or away from the rotating shaft 203 relative to the first blade 2010.
  • a second groove 2028 is provided on the second blade 2020, and a second sliding block matching the second groove 2028 is provided at a position of the fourth blade 2029 close to the second groove 2028. 20291.
  • the second sliding block 20291 extends into the second groove 2028 and is slidably connected to the second groove 2028. Therefore, when the second structural member 202 rotates around the axis O-O of the rotating shaft 203, the fourth blade 2029 can slide a predetermined distance in a direction approaching or away from the rotating shaft 203 relative to the second blade 2020.
  • the third blade drives the first slider 20191 to slide in the first groove 2018 of the first blade 2010 in a direction close to the rotating shaft 203
  • the fourth blade 2029 drives the second slider 20291 to slide in the second groove 2028 of the second blade 2020 in a direction close to the rotating shaft 203.
  • the third blade 2019 drives the first slider 20191 to slide in the first groove 2018 of the first blade 2010 in a direction away from the rotating shaft 203; the fourth The blade 2029 drives the second slider 20291 to slide in the second groove 2028 of the second blade 2020 in a direction away from the rotating shaft 203.
  • the first blade is slidably connected with the third blade
  • the second blade is slidably connected with the fourth blade, which further reduces the pulling force of the third blade, the fourth blade and the rotating shaft on the flexible screen. Improve the flatness of the flexible screen.
  • the rotating mechanism includes: a rotating shaft 203, a first structure 201, a second structure 202, a third structure 204, and a fourth structure 214.
  • the first structural member 201 includes: a first blade 2010 and a third blade 2019 arranged in a direction away from the rotating shaft 203
  • the second structural member 202 includes: a first blade 2010 and a third blade 2019 arranged in a direction away from the rotating shaft 203.
  • the second blade 2020 and the fourth blade 2029 are examples of the first structural member 201 and the second structural member 202.
  • the first blade 2010 is provided with a first sliding groove 2011.
  • One end of the third structural member 204 is connected to the rotating shaft 203, and the other end extends into the first sliding groove 2011 and is connected to the first sliding groove 2011.
  • Slot 2011 is sliding connection.
  • the position of the first blade 2010 close to the third blade 2019 is also provided with a first groove (not shown in the figure, please refer to 2018 in FIG. 3b), and the third blade 2019 is provided with The first sliding block 20191 matched with the first groove, the first sliding block 20191 extends into the first groove and is slidably connected to the first groove.
  • the third structural member 204 is slidably connected to the first sliding groove 2011, and the first sliding block 20191 is slidably connected to the first groove.
  • the rotating mechanism includes two rotating shafts 203 arranged sequentially along the axial direction. And the first structural member 201 and the second structural member 202 located on both sides of the rotating shaft 203.
  • the first structural member 201 includes: two first blades 2010 and one third blade 2019.
  • Each rotating shaft 203 is connected with one first blade 2010 and at least one third structural member 204, and each first blade 2010 is provided with a first sliding groove 2011, and the third structural member 204 and the first sliding groove 2011 Sliding connection.
  • each first blade 2010 close to the third blade 2019 is further provided with a first groove
  • the third blade 2019 is provided with two first sliding blocks 20191 matching the first grooves.
  • a groove is slidably connected to the sliding block 20191.
  • FIG. 5 is a schematic structural diagram of another foldable display terminal provided by an embodiment of the application.
  • Fig. 5a is a cross-sectional view of M-M in Fig. 5.
  • the rotating mechanism includes: a first structure 201, a second structure 202, a third structure 204, a fourth structure 214, and a rotating shaft.
  • the rotating shaft includes: a first rotating shaft 2031 and a second rotating shaft 2032.
  • the specific structures of the first structural member 201, the second structural member 202, the first rotating shaft 2031, and the second rotating shaft 2032 can be referred to the above, and will not be repeated here.
  • the first structure 201 includes: a first blade 2010 and a third blade 2019 that are sequentially arranged in a direction away from the rotation shaft 203, and the second structure
  • the member 202 includes: a second blade 2020 and a fourth blade 2029 arranged in sequence in a direction away from the rotating shaft 203.
  • the first blade 2010 is further provided with a first groove 2018, and a position of the third blade 2019 close to the first groove 2018 is provided with a first sliding block 20191 matching the first groove.
  • the first sliding block 20191 extends into the first groove 2018 and is slidably connected to the first groove 2018.
  • a second groove 2028 is provided on the second blade 2020, and a second sliding block matching the second groove 2028 is provided at a position of the fourth blade 2029 close to the second groove 2028. 20291.
  • the second sliding block 20291 extends into the second groove 2028 and is slidably connected to the second groove 2028.
  • the rotating mechanism further includes, for example, a connector 205.
  • the connector 205 may be a C-type card.
  • the embodiment of the present application uses a C-type card as an example to illustrate the connection relationship between the connector 205 and the rotating shaft, and the C-type card does not constitute a limitation on the structure of the connector 205.
  • the first rotating shaft 2031 is connected to the second rotating shaft 2032 through the connector 205.
  • FIG. 6 is a schematic structural diagram of the connector in FIG. 5.
  • the connector 205 includes at least: a first C-type card 2051, wherein the first C-type card 2051 is sleeved in On the first rotating shaft 2031, when the first structural member 201 rotates, the first C-shaped card 2051 does not move, and the first rotating shaft 2031 rotates in the first C-shaped card 2051.
  • the first C-shaped card 2051 will produce a first deformation or a second deformation, wherein the deformation amount of the second deformation is greater than the deformation amount of the first deformation.
  • the first C-shaped card 2051 changes from the second deformation to the first deformation, and the energy released by it can provide torque for the first shaft 2031, drive the first shaft 2031 to rotate, and then drive the third structural member 204 and the A structural member 201 rotates accordingly to realize the automatic flattening and folding of the flexible screen.
  • the third structural member 204 and the first structural member 201 can be provided with a holding force.
  • the first C-shaped card 2051 has an opening on one side, and the inner side thereof has a first flat surface 20511, a first curved surface 20512, and a first concave portion 20531 opposite to the opening.
  • the distance from the first plane 20511 to the center of the first C-type card is L1, and the distance from the first curved surface 20512 to the center of the first C-type card is equal to L2, wherein the distance from the first recessed portion 20531 to the center of the first C-type card It is greater than L2.
  • Fig. 7a is a schematic structural diagram of a first rotating shaft in Fig. 5, as shown in Fig. 7a, the first rotating shaft 2031 is a cylindrical structure, wherein the surface of the first rotating shaft 2031 for contacting the C-type card includes : A third plane 20311 and a fifth plane 20312 matching the first plane 20511, and a second curved surface 20313 matching the first curved surface 20512.
  • This application does not limit the relative positional relationship between the third plane 20311 and the fifth plane 20312. It only needs to make the third plane 20311 and the first plane 2031 rotate to the preset position in the first C-shaped card.
  • the first plane of the C-shaped card is matched, and at the same time, the fifth plane 20312 can be matched with the first recess or opening of the first C-shaped card.
  • the third plane 20311 and the fifth plane 20312 are arranged opposite to each other.
  • the included angle between the third plane 20311 and the fifth plane 20312 may be 90°.
  • the first plane 20511 of the first C-type card 2051 is in contact with the third plane 20311 of the first shaft 2031, and the fifth plane 20312 of the first shaft 2031 is located at the connecting portion.
  • the distance R1 between the third plane 20311 and the axis of the first shaft is equal to the distance L1 between the first plane 20511 and the center of the first C-shaped card, and the distance between the fifth plane 20312 and the axis of the first shaft
  • the distance R1 between the first recessed portion 20531 and the center of the first C-type card is less than the distance between the first C-type card and the center of the first C-type card.
  • the third plane 20311 of the first rotating shaft Leaving the first plane 20511 of the first C-shaped card, the fifth plane 20312 of the first rotating shaft leaves the first recessed portion of the first C-shaped card, the second curved surface 20313 of the first rotating shaft 2031 and the first C-shaped card
  • the first plane 20511 of the card is in contact
  • the radius R2 at the second curved surface 20313 of the first shaft 2031 is greater than the distance L1 from the first plane 20511 to the center of the first C-shaped card
  • the second curved surface 20313 of the first shaft 2031 faces the
  • the first plane 20511 of the first C-type card generates thrust, and the deformation of the first C-type card 2051 becomes the second deformation.
  • the position where the first deformation of the C-shaped card is generated can be used as the unfolding position or the folding position of the flexible screen, which can provide a holding force for the folding or unfolding of the flexible screen.
  • the torque provided by the C-type card releasing energy can drive the first rotating shaft to rotate , Which drives the first structural part to rotate, realizes the automatic flattening and folding of the flexible screen, and improves the user experience.
  • the included angle between the first structural member 201 and the second structural member 202 is, for example, 0° Or 180°
  • the third plane 20311 or the fifth plane 20312 is matched with the first plane 20511, and at this time, the deformation of the first C-type card becomes the first deformation.
  • the angle between the first structural member 201 and the second structural member 202 is between 0° and 180° In between, the second curved surface 20313 of the first rotating shaft 2031 is in contact with the first flat surface 20511. At this time, the deformation of the first C-shaped card becomes the second deformation.
  • the closing force can be provided when the rotating mechanism is closed to make the folding process easier; proper resistance is provided in the initial stage of the rotating mechanism from folding to flattening, to avoid the flexible screen unfolding too fast; when the rotating mechanism is flattened to a specific angle Appropriate assistance to realize automatic flattening; after unfolding, provide flattening retention force.
  • the connector 205 further includes: a second C-type card 2052 opposite to the opening direction of the first C-type card 2051, and the second C-type card 2052 is sleeved in the On the second shaft 2032, the first C-type card 2051 is connected to the second C-type card 2052 through a connecting portion 2053.
  • the first structural member 201 rotates, the first C-type card 2051 does not move, and the first rotating shaft 2031 rotates in the first C-type card 2051.
  • the second structural member 202 rotates, the second C-shaped card 2052 does not move, and the second rotating shaft 2032 rotates in the second C-shaped card 2052.
  • the structure and working process of the second C-type card 2052 can refer to the description of the first C-type card 2051, and the structure and working process of the second shaft 2032 can refer to the description of the first shaft 2031, here No longer.
  • the rotating mechanism provided by the embodiment of the present application can provide torque for the rotation of the first rotating shaft and the second rotating shaft by providing a C-shaped card.
  • the first rotating shaft and the second rotating shaft can transmit the torque to the first structure and the second structure through the third structure and the fourth structure, and finally act on the flexible screen to provide holding force for the folding or flattening of the flexible screen .
  • FIG. 9 is a schematic structural diagram of another rotating mechanism provided by an embodiment of the application.
  • the rotating mechanism includes: a first structure 201, a second structure 202, a third structure 204, a fourth structure 214 and a rotating shaft 203.
  • the first structural member 201 is provided with a first sliding groove 2011, and the second structural member 202 is provided with a second sliding groove 2021.
  • the first end of the third structural member 204 is rotatably connected with the rotating shaft 203, and the second end, as shown in FIG. 2, can extend into the first sliding groove 2011 and be slidably connected with the first sliding groove 2011.
  • the first end of the fourth structural member 214 is rotatably connected with the rotating shaft 203, and the second end can extend into the second sliding groove 2021 and be slidably connected with the second sliding groove 2021.
  • the sliding connection structure of the third structural member 204 and the first sliding groove 2011 and the sliding connection structure of the fourth structural member 214 and the second sliding groove 2021 can refer to the description of FIG. 2, and will not be repeated here.
  • each rotating shaft 203 there are two rotating shafts 203, and the two rotating shafts 203 are arranged sequentially from top to bottom, and a third structural member 204 and a fourth structural member 214 are connected to each rotating shaft.
  • Each of the first structural member 201 and the second structural member 202 is one, each first structural member 201 is provided with two first sliding grooves 2011, and each second structural member 202 is provided with two second sliding grooves 2021.
  • Each third structural member corresponds to one first sliding groove 2011, and each fourth structural member 214 corresponds to one second sliding groove 2021.
  • FIG. 10 is a schematic diagram of the structure of the rotating shaft in FIG. 9.
  • the rotating shaft 203 includes: a third rotating shaft 2030, on which a nut 2033, a third structural member 204, a first elastic member 2034, a flat washer 2035, and a cam 2036 are sequentially sleeved. , Concave wheel 2037, fourth structural member 214.
  • the elastic member 2034 is, for example, a disc spring.
  • the mating surfaces of the third rotating shaft 2030 and the fourth structural member 214, and the mating surfaces of the third rotating shaft 2030 and the concave wheel 2037 are all smooth cylindrical surfaces, so that the fourth structural member 214 and The concave wheel 2037 can rotate around the third rotating shaft 2030.
  • the mating surface of the third rotating shaft 2030 and the cam 2036, the mating surface of the third rotating shaft 2030 and the flat pad 2035, the mating surface of the third rotating shaft 2030 and the elastic component 2034, and the The mating surfaces of the third rotating shaft 2030 and the third structural member 204 are both smooth prismatic surfaces, so that the cam 2036 can only slide along the axial direction of the third rotating shaft 2030 to compress or release the elastic component 2034 And the flat pad 2035.
  • the third rotating shaft 2030 can be driven to rotate when the first structural member 201 rotates.
  • the nut 2033 is fixedly connected to the end of the third rotating shaft 2030, and the nut is used to connect the third structural member 204, the first elastic member 2034, the flat pad 2035, the cam 2036, the concave wheel 2037, and the fourth
  • the structural member 214 is restricted to the rotating shaft to prevent the third structural member 204, the first elastic member 2034, the flat pad 2035, the cam 2036, the concave wheel 2037, and the fourth structural member 214 from falling out during use.
  • the concave wheel 2037 is provided with a convex block 20373
  • the fourth structural member 214 is provided with a concave 20374 matching the convex block.
  • the protrusion 20373 is inserted into the recess 20374.
  • the cam 2036 is provided with a convex portion 20361
  • the concave wheel 2037 is provided with a flat portion 20374
  • a first concave portion 20371 and a second concave portion 20372 that match the convex portion 20361.
  • the convex portion 20361 on the cam 2036 will rotate into the first concave portion 20371 and the second concave portion 20372 on the concave wheel 2037, and the deformation of the first elastic member 2034 becomes the first deformation.
  • the third rotating shaft 2030 continues to rotate, and the convex portion 20361 on the cam 2036 rotates out of the first concave portion 20371 and the second concave portion 20372 on the concave wheel 2037, and contacts the flat portion 20374.
  • the first elastic member 2034 The deformation becomes the second deformation.
  • the amount of deformation of the second deformation is greater than the amount of deformation of the first deformation.
  • the energy released can provide torque to the third rotating shaft 3020, drive the third rotating shaft 2030 to rotate, and then drive the third structural member 204 and the first structure
  • the piece 201 rotates accordingly to realize the automatic flattening and folding of the flexible screen.
  • the convex portion 20361 on the cam 2036 is located in the first concave portion 20371 and the second concave portion 20372 on the concave wheel 2037, the third structural member 204 and the first structural member 201 can be provided with a holding force.
  • the convex portion 20361 of the cam 2036 is matched with the first concave portion 20371 of the concave wheel 2037.
  • the first elastic member 2034 undergoes a first deformation.
  • the third shaft 2030 rotates accordingly, driving the convex portion of the cam 2036 to gradually transfer from the first concave portion 20371 or the second concave portion 20372 of the concave wheel 2037 As a result, the cam 2036 slides away from the concave wheel 2037 along the third rotating shaft 2030, and the first elastic member 2034 generates a second deformation.
  • the mating position of the cam and the concave wheel can be used as the unfolding position or the folding position of the flexible screen, which can provide a holding force for the folding or unfolding of the flexible screen.
  • the included angle between the third structural member 204 and the fourth structural member 214 is, for example, 0° Or 180°, the convex part of the cam matches the at least one concave part, and the deformation of the first elastic member becomes the first deformation;
  • the angle between the third structural member 204 and the fourth structural member 214 is between 0 degrees and Between 180 degrees, the convex part of the cam is in contact with the flat part, and the deformation of the first elastic member becomes the second deformation.
  • the first elastic component 2034 when the first elastic component 2034 returns from the second deformation to the first deformation, the first elastic component rebounds and releases energy, so as to provide torque for the third structural member and the fourth structural member, thereby rotating When the mechanism is closed, it can provide closing force, making the folding process easier.
  • the rotating mechanism When the rotating mechanism is in the initial stage from folding to unfolding, the first elastic member 2034 first deforms from the first to the second, so as to provide appropriate resistance for the third and fourth structural members to prevent the flexible screen from being unfolded.
  • the first elastic member 2034 when the rotating mechanism is flattened to a specific angle, the first elastic member 2034 then returns from the second deformation to the first deformation, providing appropriate assistance for the third and fourth structural members to realize automatic flattening After unfolding, the first elastic member 2034 is first deformed and can provide flattening retention force for the third structural member and the fourth structural member.
  • the rotating mechanism provided by the embodiment of the present application can provide torque for the rotation of the third rotating shaft through the provision of elastic components, concave wheels and cam cooperation, and the third rotating shaft can transmit the torque to the second through the third structural member and the fourth structural member.
  • the first structural member and the second structural member finally act on the flexible screen to provide a holding force for the folding or flattening of the flexible screen.
  • Fig. 12 is a schematic structural diagram of another rotating mechanism provided by an embodiment of the application. As shown in FIG. 12, the rotating mechanism includes a first structure 201, a second structure 202, and a rotating shaft 203 located between the first structure 201 and the second structure 202.
  • the first structural member 201 includes: a first blade 2010 and a third blade 2019 arranged in a direction away from the rotating shaft 203
  • the second structural member 202 includes: a first blade 2010 and a third blade 2019 arranged in a direction away from the rotating shaft 203.
  • the second blade 2020 and the fourth blade 2029 are examples of the first structural member 201 and the second structural member 202.
  • the rotating shaft 203 includes a guiding inner shaft 2038 and a guiding outer shaft 2039.
  • the guiding outer shaft 2039 is arranged on the guiding inner shaft 2038, and the guiding inner shaft 2038 can It is fixedly connected with the guide outer shaft 2039 through a screw 2001.
  • the outer diameter of the guide inner shaft is smaller than the inner diameter of the guide outer shaft, and the guide inner shaft 2038 faces the guide outward
  • An outer arc is provided on one side of the shaft 2039
  • an inner arc is provided on the side of the guide outer shaft 2039 facing the inner guide shaft 2038
  • the outer arc and the inner arc are arranged oppositely, and the inner The arc and the outer arc enclose an arc-shaped slideway 20380.
  • the first structural member 201 is provided with a first rotating member 2012 on one side close to the rotating shaft 203, and the first rotating member 2012 is located in the slideway 20380 between the guiding inner shaft 2038 and the guiding outer shaft 2039 Inside, when the first structural member 201 rotates, the first rotating member 2012 rotates along the guide inner shaft 2038 in the slideway.
  • the second structural member 202 is provided with a second rotating member 2022 on a side close to the rotating shaft 203, and the second rotating member 2022 is located between the guide inner shaft 2038 and the guide outer shaft 2039.
  • the second rotating member 2022 rotates in the slideway 20380 accordingly.
  • first rotating member 2012 and the second rotating member 2022 are sequentially spaced along the axis O-O, and the first rotating member 2012 and the second rotating member 2022 share an axis.
  • the coaxial rotation of the first structural member 201 and the second structural member 202 is realized.
  • the rotating shaft 203 further includes: a first rotating shaft 2031 and a second rotating shaft 2032.
  • the length of the inner guiding shaft 2038 is less than the length of the outer guiding shaft 2039, the first end of the guiding outer shaft 2039 in the length direction extends along the length direction relative to the first end of the guiding inner shaft 2038 in the length direction, wherein The first end in the longitudinal direction of the guiding inner shaft 2038 is close to the first end in the longitudinal direction of the guiding outer shaft 2039, or is flush with the first end in the longitudinal direction of the guiding outer shaft 2039.
  • the first rotating shaft 2031 and the second rotating shaft 2032 are disposed between the first end of the guiding inner shaft 2038 in the longitudinal direction and the first end of the guiding outer shaft 2039 in the longitudinal direction.
  • a pressure cover 2004 is also provided at the opening of the guide outer shaft 2039, and the pressure cover 2004 is used to fix the first rotation shaft 2031 and the second rotation shaft 2032 in the guide outer shaft 2039.
  • the axis of the first rotating shaft 2031 is, for example, O'-O'
  • the first structural member 201 is rotatably connected to the first rotating shaft 2031 through the third structural member 204, and the first structural member 201 can rotate around the axis O '-O' rotation.
  • the axis of the second rotating shaft 2032 is, for example, O"-O
  • the second structural member 202 is rotatably connected to the second rotating shaft 2032 through the fourth structural member 214, and the second structural member 202 can rotate around the axis O"-O. "Turn.
  • the axis OO of the flexible screen is different from the axis O'-O' of the first structural member and the axis O"-O" of the second structural member.
  • the first structural member and the second structural member are easily affected by the flexible screen during the rotation process. Larger pulling force affects the flatness of the flexible screen.
  • the guide outer shaft 2039 is provided with a first opening 2013 and a second opening 2023, and the first end of the third structural member 204 Connected to the first shaft 2031, the second end passes through the first opening 2013 and then extends into the first sliding groove 2011, and the end of the second end is provided with a first support portion 2044, and the first The supporting portion 2044 is also provided with a first guide rod 2045, the axis of the first guide rod 2045 is perpendicular to the axis of the third structural member 204, and the first sliding groove 2011 is provided on both sides with the first guide rod 2045.
  • the first end of the fourth structural member 214 is connected to the second shaft 2032, the second end passes through the second opening 2023 and then extends into the second sliding groove 2021, and the end of the second end is provided with
  • the second guide rod 2145 can slide along the second guide rail 2024.
  • the third structural member 201 is slidably connected to the first sliding groove 2011, and the fourth structural member 214 is slidably connected to the second sliding groove, which reduces the pulling on the flexible screen during the rotation of the first structural member and the second structural member Strength, improve the flatness of the flexible screen.
  • first structural member 201 and the second structural member 202 when the rotation of the first structural member 201 and the second structural member 202 is not synchronized, for example, when the first structural member 201 rotates and the second structural member 202 does not move, the first structural member 201 and the second structural member 202 The pulling force of the structure 202 to the flexible screen is different, which easily causes the flexible screen to shift to one side, which affects the stability of the connection between the flexible screen and the rotating mechanism.
  • the rotating mechanism further includes: a first gear 2041 and a second gear 2141.
  • the first gear 2041 is sleeved on the first rotating shaft 2031, and the first gear 2041 is rotatably connected with the first rotating shaft 2031.
  • An end of the third structural member 204 close to the first rotating shaft 2031 is connected to the first gear 2041.
  • the second gear 2141 is sleeved on the second rotating shaft 2032, and the second gear 2141 is rotatably connected with the second rotating shaft 2032.
  • An end of the fourth structural member 214 close to the second rotating shaft 2032 is connected to the second gear 2141.
  • the first gear 2041 and the second gear 2141 are arranged in parallel between the first rotating shaft 2031 and the second rotating shaft 2032, and the first gear 2041 and the second gear 2141 are meshed, so that when When the first gear 2041 rotates, the second gear 2141 can be driven to rotate synchronously, or when the second gear 2141 rotates, the first gear 2041 can be driven to rotate synchronously.
  • the working process of the rotating mechanism will be described below by taking the first structural member as an example.
  • the first structural member 201 rotates
  • the third structural member 204 and the first gear 2041 rotate around the first rotating shaft 2031.
  • the movement and power of the first gear 2041 can be transmitted to
  • the second gear 2141 enables the second gear 2141 to obtain rotational speed and torque, thereby driving the fourth structural member 214 to rotate with the rotation of the second gear 2141 and driving the second structural member 202 to rotate.
  • the synchronous movement of the first structural member 201 and the second structural member 202 is realized, and the stability of the connection between the flexible screen and the rotating mechanism is improved.
  • the third structural member 204 acts on the first structural member 201
  • the fourth structural member 214 acts on the second structural member 202.
  • the meshing effect of the gear can be Torque is transmitted during the unfolding and folding of the mechanism.
  • the rotating mechanism provided in the embodiment of the present application can transmit torque for the unfolding and folding of the rotating mechanism through the meshing effect of gears, and realizes the synchronous movement of the first structural member and the second structural member, thereby realizing the flexible screen on both sides of the rotating shaft. Synchronize.
  • the length of the lever arm is approximately the radius of the rotating shaft plus the length of the rotating part.
  • the torque is provided by the C-type card and the cam respectively, and the length of the lever arm is approximately the rotating shaft.
  • the force arm is longer and the torque is larger, which can better transmit torque for the unfolding and folding of the rotating mechanism.
  • the rotating mechanism at least includes: a first structure 201, a second structure 202, a third structure 204, a fourth structure Pieces 214 and shaft 203.
  • the rotating shaft 203 includes a guiding inner shaft, a guiding outer shaft, a first rotating shaft 2031, a second rotating shaft 2032.
  • the specific structure of the rotating shaft 2031 and the second rotating shaft 2032 can refer to the above-mentioned embodiment, and will not be repeated here.
  • a first cam 2042 is sleeved on the first rotating shaft 2031
  • a second cam 2142 is sleeved on the second rotating shaft 2032
  • the first cam 2042 can be fixedly connected with the second cam 2142.
  • An end of the third structural member 204 close to the first rotating shaft 2031 is provided with a first moving member 2047 capable of moving along the first cam 2042, wherein the first moving member 2047 and the third structural member 204 may be integrally formed.
  • the fourth structural member 214 is provided with a second moving member 2147 capable of moving along the second cam 2142 at one end close to the second rotating shaft 2032.
  • the second moving member 2147 is similar to the fourth structural member 2147.
  • the piece 214 may be integrally formed.
  • the third structural member 204 is sequentially sheathed with a second elastic member 2043, a first supporting portion 2044 along a direction close to the first structural member 201, and is used to prevent the second elastic member 2043 and the first supporting portion
  • the first restricting portion 2044 escaping (not shown in FIG. 22, refer to 2046 in FIG. 26), and the first supporting portion 2044 is provided with a first guide rod 2045, and the first guide rod 2045
  • the axis is perpendicular to the direction of the axis of the third structural member 204, and the sliding groove of the first structural member 201 is provided with first guide rails 2014 matching the first guide rod 2045.
  • the first guide rod 2045 can slide along the first guide rail 2014.
  • the first elastic member 204 may be a spring.
  • the first cam has a first surface 20421, a second surface 20422 and a third surface 20423.
  • the first surface 20421 and the second surface 20422 are flat surfaces
  • the third surface 20423 is an arc-shaped surface
  • the distance between the first surface 20421 and the second surface 20422 and the axis of the first shaft 2031 is The distance is smaller than the radius at the third surface 20423.
  • the included angle between the first surface 20421 and the second surface 20422 may be 90 degrees.
  • the third structural member 204 drives the first moving member 2047 to move along the surface of the first cam 2042.
  • the included angle between the third structural member 204 and the fourth structural member 214 is 0 degrees, the first moving member 2047 contacts the first surface 20421, and the deformation of the second elastic member 2043 For the first deformation.
  • the third structural member 204 and the fourth structural member 214 are in the expanded state, and the angle between the third structural member 204 and the fourth structural member 214 is 180 degrees, the third structural member 204 The structural member 204 contacts the second surface 20422, and the deformation of the second elastic member 2043 becomes the first deformation.
  • the angle between the third structural member 204 and the fourth structural member 214 is between 0 degrees and Between 180 degrees, the third structural member 204 is in contact with the third surface 20423, the deformation of the second elastic member 2043 becomes a second deformation, and the deformation amount of the second deformation is greater than that of the first deformation Shape variable.
  • the second elastic member 2043 when the second elastic member 2043 recovers from the second deformation to the first deformation, the second elastic member rebounds and releases energy to provide torque for the third structural member, thereby providing a closing force when the rotating mechanism is closed.
  • the folding process easier; in the initial stage of the rotation mechanism from folding to unfolding, the second elastic member 2043 changes from the first deformation to the second deformation, which provides appropriate resistance for the third structural member and prevents the flexible screen from unfolding too quickly
  • the rotating mechanism is flattened to a specific angle
  • the second elastic member 2043 changes from the second deformation to the first deformation again, providing appropriate assistance for the third structural member to realize automatic flattening; after unfolding the second elastic member 2043 is the first deformation, which can provide flattening and holding force for the third structure.
  • the mating position of the first moving member 2047 and the first surface and the second surface of the first cam can be used as the unfolding position or the folding position of the flexible screen, which can provide a holding force for the folding or unfolding of the flexible screen.
  • the fourth structural member 214 is sequentially sheathed with a third elastic member 2143, a second supporting portion 2144 along a direction close to the second structural member 202, and is used to prevent the third The elastic member 2143 and the second limiting portion (not shown in FIG. 22, refer to 2146 in FIG.
  • the third elastic component 2143 can adopt the same structure as the second elastic component 2043, and will not be repeated here.
  • the working process of the second structural member 202 reference may be made to the description of the first structural member 201, which will not be repeated here.
  • the third structural member 204 acts on the first structural member 201
  • the fourth structural member 214 acts on the second structural member 202, which can provide for the unfolding and folding of the rotating mechanism during the rotation. Torque.
  • the rotating mechanism provided by the embodiment of the present application can provide torque for the rotation of the first rotating shaft and the second rotating shaft through the cooperation of springs and cams.
  • the first rotating shaft can transmit the torque to the first structural member through the third structural member.
  • the two rotating shafts can transmit the torque to the second structure through the fourth structure, and finally act on the flexible screen to provide a holding force for the folding or flattening of the flexible screen.
  • Each rotating mechanism can be provided with one or more sets of structures for providing torque to provide sufficient torque for the unfolding and folding of the rotating mechanism.
  • the rotating mechanism includes three groups of structures for providing torque. As shown in Figures 25, 26, and 27, the rotating mechanism includes: a first structure 201, a second structure 202, a shaft 203, a third structure 204, a fourth structure 214, and a fifth structure 206 , The sixth structural member 216, the seventh structural member 208, and the eighth structural member 218.
  • the rotating shaft 203 includes: an inner guiding shaft, an outer guiding shaft, a first rotating shaft 2031, a second rotating shaft 2032.
  • the specific structure of the rotating shaft 2031 and the second rotating shaft 2032 can refer to the above-mentioned embodiment, and will not be repeated here.
  • the third structure 204, the fourth structure 214, the fifth structure 206, the sixth structure 216, the seventh structure 208, and the eighth structure 218 may adopt the same structure, for example.
  • the third structural member 204, the fifth structural member 206, and the seventh structural member 208 may be arranged in parallel in the first chute 2011.
  • the fourth structural member 214, the sixth structural member 216, and the eighth structural member 218 may be arranged in parallel in the second sliding groove 2021.
  • a first gear 2041 is sleeved on the first rotating shaft 2031, and the first gear 2041 is rotatably connected with the first rotating shaft 2031.
  • An end of the third structural member 204 close to the first rotating shaft 2031 is connected to the first gear 2041.
  • a second gear 2141 is sleeved on the second rotating shaft 2032, and the second gear 2141 is rotatably connected with the second rotating shaft 2032.
  • An end of the fourth structural member 214 close to the second rotating shaft 2032 is connected to the second gear 2141.
  • the second gear 2141 meshes with the first gear 2041.
  • a first cam 2042 is sleeved on the first rotating shaft 2031, and an end of the fifth structural member 206 close to the first rotating shaft 2031 is provided with a first moving member 2047 that moves along the first cam 2042.
  • the first moving part 2047 and the fifth structural part 206 may be integrally formed.
  • the first moving member 2047 is sleeved on the third structural member 204 and the seventh structural member 208 at the same time, so that the third structural member 204, the fifth structural member 206 and the seventh structural member 208 can rotate synchronously.
  • a second cam 2142 is sleeved on the second rotating shaft 2032, wherein the first cam 2042 is fixedly connected to the second cam 2142.
  • An end of the sixth structural member 216 close to the second rotating shaft 2032 is provided with a second moving member 2147 that moves along the second cam 2142.
  • the second moving member 2147 and the sixth structural member 216 may be One piece.
  • the second moving member 2147 is sleeved on the fourth structural member 214 and the eighth structural member 218 at the same time, so that the fourth structural member 214, the sixth structural member 216 and the eighth structural member 218 can rotate synchronously.
  • a third gear 2081 is sleeved on the first rotating shaft 2031, and the third gear 2081 is rotatably connected with the first rotating shaft 2031.
  • An end of the seventh structural member 208 close to the first rotating shaft 2031 is connected to the third gear 2081.
  • a fourth gear 2181 is sleeved on the second rotating shaft 2032, and the fourth gear 2181 is rotatably connected with the second rotating shaft 2032.
  • An end of the eighth structural member 218 close to the second rotating shaft 2032 is connected to the fourth gear 2181, and the fourth gear 2181 meshes with the third gear 2081.
  • Both ends of the first rotating shaft 2031 and the second rotating shaft 2032 are further provided with a first spacer 2002 and a second spacer 2003 for controlling the axial distance between the first rotating shaft 2031 and the second rotating shaft 2032 .
  • the third structural member 204, the fifth structural member 206, and the seventh structural member 208 are successively sleeved with a second elastic member 2043, which can simultaneously extend along the third structural member 204, the first The first support 2044 for the fifth structural member 206 and the seventh structural member 208 to slide, and the first limiting portion 2046 for preventing the second elastic member 2043 and the first support 2044 from coming out, and the first support
  • a first guide rod 2045 is provided on the member 2044, and a first guide rail 2014 matching the first guide rod 2045 is provided in the sliding groove of the first structural member 201. When the first structural member 201 rotates, The first guide rod 2045 slides along the first guide rail 2014.
  • the fourth structural member 214, the sixth structural member 216, and the eighth structural member 218 are sequentially sheathed with a third elastic member 2143, which can simultaneously extend along the first
  • the second support member 2144 is provided with a second guide rod 2145
  • the sliding groove of the second structural member 202 is provided with a second guide rail 2024 matching the second guide rod 2145.
  • the working process of the rotating mechanism will be described below by taking the first structural member 201 as an example.
  • the third structure 204 and the first gear 2041 rotate around the first shaft 2031 accordingly.
  • the gear 2141 enables the second gear 2141 to obtain the speed and torque, and drives the fourth structural member 214 to rotate;
  • the seventh structural member 208 drives the third gear 2081 to rotate around the first shaft 2031, and the third gear
  • the movement and power of 2081 are transmitted to the fourth gear 2181, so that the fourth gear 2181 obtains the rotation speed and torque, and drives the eighth structural member 218 to rotate, thereby driving the second structural member 202 to rotate.
  • the synchronous movement of the first structural member 201 and the second structural member 202 is realized.
  • the meshing effect of the gear can transmit torque during the unfolding and folding of the rotating mechanism.
  • the sixth structural member 216 drives the first moving member 2047 to move along the first cam 2042, and when the first moving member 2047 moves to the first surface or the first surface of the first cam 2042 When there are two surfaces, the deformation of the second elastic component 2043 becomes the first deformation.
  • the deformation of the second elastic member 2043 becomes the second deformation. The amount of deformation of the second deformation is greater than the amount of deformation of the first deformation.
  • the rotating mechanism provided by the embodiment of the present application can realize the synchronous rotation of the rotating parts on both sides of the rotating shaft through the meshing effect of gears, avoid the deviation of the flexible screen caused by the rotation of only one rotating part, and improve the stability of the connection between the flexible screen and the rotating mechanism. Sex.
  • the meshing effect of gears and the joint action of cams and springs can provide closing force when the rotating mechanism is closed, making the folding process easier; providing appropriate resistance during the initial stage of the rotating mechanism from folding to flattening, avoiding flexible screens Unfolding too fast; when the rotating mechanism is unfolded to a certain angle, it starts to provide appropriate assistance to realize automatic unfolding; after unfolding, it provides unfolding retention force.
  • the arrangement of the rotating member is perpendicular to the axis of the rotating shaft, the force arm is longer, and the torque is larger, which can provide sufficient torque for the unfolding and folding of the rotating mechanism.
  • a plurality of rotating parts share a rotating shaft, and the coupled structural parts occupy a very small space, which is beneficial to the miniaturization of the rotating mechanism.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种转动机构（20）、折叠显示终端（01），所述转动机构（20）包括：转轴（203）；第一结构件（201），所述第一结构件（201）设置有第一滑槽（2011）；第二结构件（202），所述第二结构件（202）设置有第二滑槽（2021）；第三结构件（204），所述第三结构件（204）设置于所述第一滑槽（2011），且所述第三结构件（204）一端与所述转轴（203）转动连接；第四结构件（214），所述第四结构件（214）设置于所述第二滑槽（2021），且所述第四结构件（214）一端与所述转轴（203）转动连接；当所述第一结构件（201）和所述第二结构件（202）围绕所述转轴（203）转动时，所述第三结构件（204）相对于所述第一滑槽（2011）滑动，所述第四结构件（214）相对于所述第二滑槽（2021）滑动。由此，减小了第一结构件（201）和第二结构件（202）对柔性屏（10）的拉扯力，提高了柔性屏（10）的平整性。

Description

转动机构、折叠显示终端
“本申请要求于2019年07月30日提交国家知识产权局、申请号为201910696889.4、发明名称为“转动机构、折叠显示终端”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
本申请实施例涉及显示技术领域，尤其涉及一种转动机构、智能终端。
背景技术
随着显示技术的不断发展，折叠显示终端逐渐成为未来移动电子产品的一个发展趋势。折叠显示终端在展开状态下，能够获得较大的显示面积，提升观影效果。折叠显示终端在折叠状态下，能够获得较小的体积，便于用户携带。
其中，折叠显示终端至少包括：柔性屏和用于承载所述柔性屏的转动机构。
然而在使用过程中，转动机构在折叠或展开时容易对柔性屏产生拉扯力，造成柔性屏损坏，影响用户体验。
发明内容
本申请实施例提供一种转动机构、折叠显示终端，解决了柔性屏易受到拉扯力，影响用户体验的问题。
为达到上述目的，本申请实施例采用如下技术方案：本申请实施例的第一方面，提供一种转动机构，所述转动机构包括：转轴；第一结构件，所述第一结构件设置有第一滑槽；第二结构件，所述第二结构件设置有第二滑槽；第三结构件，所述第三结构件的第一端与所述转轴连接，所述第三结构件的第二端设置于所述第一滑槽；第四结构件，所述第四结构件的第一端与所述转轴连接，所述第四结构件的第二端设置于所述第二滑槽；当所述第一结构件和所述第二结构件围绕所述转轴转动时，所述第三结构件的第二端相对于所述第一滑槽滑动，所述第四结构件的第二端相对于所述第二滑槽滑动。由此，第一结构件能够相对于第三结构件滑动，第二结构件能够相对于第四结构件滑动，可以释放部分弯折力，减小了第一结构件和第二结构件转动过程中对柔性屏的拉扯力，提高了柔性屏的平整性。
一种可选的实现方式中，所述转轴包括：第一转轴和第二转轴；所述第一转轴和所述第二转轴连接；所述第一转轴和所述第二转轴通过传动结构连接；所述第三结构件与所述传动结构的第一端连接；所述第四结构件和与所述传动结构的第二端连接；当所述第三结构件驱动所述传动结构的第一端绕第一转轴转动时，所述传动结构的第二端带动所述第四结构件围绕所述第二转轴转动；或，当所述第四结构件驱动传动结构的第二端绕第二转轴转动时，所述传动结构的第一端带动所述第三结构件围绕所述第一转轴转动。由此，实现了第三结构件和第四结构件的同步，进而实现了第一结构件和第二结构件的同步。
一种可选的实现方式中，所述传动结构包括：套设在所述第一转轴上的第一齿轮，以及套设在所述第二转轴上的第二齿轮，所述第一齿轮和所述第二齿轮啮合。由此， 转动件直接与齿轮连接，力臂的长度约为转轴的半径加转动件的长度，力臂更长，扭矩更大，能够更好的为转动机构的展开和折叠传递扭矩。
一种可选的实现方式中，所述转动机构还包括：弹性部件，当所述第一结构件与所述第二结构件处于折叠状态或展开状态时，所述弹性部件为第一形变；当所述第一结构件与所述第二结构件处于折叠状态和展开状态之间时，所述弹性部件的形变为第二形变；所述第二形变的形变量大于所述第一形变的形变量。由此，当弹性部件由第二形变变为第一形变时，可以为第一转轴、第二转轴的转动提供扭矩。
一种可选的实现方式中，第一转轴和第二转轴，所述第一转轴和所述第二转轴连接；所述弹性部件至少包括：设置于所述第三结构件上的第一弹性部件；所述第一转轴上套设有第一凸轮；所述第三结构件与所述第一凸轮表面接触；当所述第一结构件转动时，所述第一凸轮相对于所述第一转轴静止；所述第三结构件沿着所述第一凸轮的表面且绕所述第一转轴转动；所述第一凸轮具有第一表面、第二表面和第三表面；当所述第三结构件与所述第一表面或所述第二表面接触时，所述第一弹性部件的形变为所述第一形变；当所述第三结构件与所述第三表面接触时，所述第一弹性部件的形变为所述第二形变。由此，通过弹簧、凸轮相配合，可以为第一转轴、第二转轴的转动提供扭矩，第一转轴可以将该扭矩通过第三结构件传递给第一结构件，第二转轴可以将该扭矩通过第四结构件传递给第二结构件，最终作用于柔性屏，从而在转动机构闭合时可以提供闭合力，使折叠过程更轻松；在转动机构从折叠到展平的初始阶段提供适当阻力，避免柔性屏展开过快；在转动机构展平到特定角度时开始提供适当助力，实现自动展平，在展开后提供展平保持力。
一种可选的实现方式中，所述第一弹性部件和所述第二弹性部件为弹簧或弹垫。
一种可选的实现方式中，所述转轴包括：第一转轴和第二转轴，所述第一转轴和所述第二转轴连接；所述弹性部件至少包括：套设在所述第一转轴上的第一C型卡；当所述第一结构件转动时，所述第一转轴相对所述第一C型卡转动；所述第一C型卡内侧具有第一平面、第一曲面，所述第一转轴包括与所述第一平面匹配的第三平面和第五平面，以及与所述第一曲面匹配的第二曲面；当所述第三平面或所述第五平面与所述第一平面接触时，所述第一C型卡的形变为所述第一形变；当所述第二曲面和所述第一平面接触时，所述第一C型卡的形变为所述第二形变由此，通过设置C型卡，可以为第一转轴和第二转轴的转动提供扭矩，第一转轴和第二转轴可以将该扭矩通过第三结构件和第四结构件传递给第一结构件和第二结构件，最终作用于柔性屏，为柔性屏的折叠或展平提供保持力。
一种可选的实现方式中，所述转轴包括：第三转轴；所述弹性部件至少包括：套设在所述第三转轴上的第二弹性部件；所述第三转轴上还套设有：凸轮和凹轮，所述凸轮上设有凸部，所述凹轮上设有平面部，以及与所述凸部匹配的至少一个凹部；当所述第一结构件转动时，所述第三结构件和所述凹轮相对所述第一转轴转动，所述凸轮相对所述第一转轴滑动；当所述凸轮的凸部与所述至少一个凹部匹配时，所述第二弹性部件的形变为所述第一形变；当所述凸轮的凸部与所述平面部接触时，所述第二弹性部件的形变为所述第二形变。由此，通过第三弹性部件为所述第三结构件和所述第四结构件的转动提供扭矩，可以将凸轮和凹轮的配合位置作为柔性屏的展平位置或 折叠位置，能够为柔性屏的折叠或展平提供保持力。
一种可选的实现方式中，所述第三弹性部件为碟簧或弹垫。
一种可选的实现方式中，所述转动机构还包括：弹性部件，所述转轴包括：第一转轴和第二转轴；所述第一转轴和所述第二转轴通过传动结构连接；所述第三结构件与所述传动结构的第一端连接；所述第四结构件和与所述传动结构的第二端连接；当所述第三结构件驱动所述传动结构的第一端绕第一转轴转动时，所述传动结构的第二端带动所述第四结构件围绕所述第二转轴转动；或，当所述第四结构件驱动传动结构的第二端绕第二转轴转动时，所述传动结构的第一端带动所述第三结构件围绕所述第一转轴转动；当所述第三结构件与所述第四结构件处于折叠状态或展开状态时，所述弹性部件的形变为第一形变；当所述第三结构件与所述第四结构件处于折叠状态和展开状态之间时，所述弹性部件的形变为第二形变；所述第二形变的形变量大于所述第一形变的形变量。由此，在实现第三结构件和第四结构件同步运动的同时为第三结构件和第四结构件的转动提供了扭矩。
一种可选的实现方式中，所述转动机构还包括：第五结构件；所述第五结构件设置于所述第一滑槽；所述传动结构包括：套设在所述第一转轴上的第一齿轮，以及套设在所述第二转轴上的第二齿轮；所述第一齿轮和所述第二齿轮啮合；所述弹性部件包括：套设在所述第五结构件上的第一弹性部件；所述第一转轴上套设有第一凸轮；所述第五结构件与所述第一凸轮表面接触；当所述第一结构件转动时，所述第一凸轮相对于所述第一转轴静止；所述第五结构件沿着所述第一凸轮的表面且绕所述第一转轴转动。由此，多个转动件共用一个转轴，耦合后的结构件占用空间极小，有利于转动机构的小型化。
一种可选的实现方式中，所述转轴还包括：导向内轴和导向外轴，所述导向外轴罩设于所述导向内轴；其中，所述导向内轴的长度小于所述导向外轴长度，所述导向外轴长度方向的第一端相对所述导向内轴长度方向的第一端沿长度方向延伸，所述第一转轴和所述第二转轴设置于所述导向内轴长度方向的第一端与所述导向外轴长度方向的第一端之间由此，将所述第一转轴和所述第二转轴设置在导向外轴内，能够保护所述第一转轴和所述第二转轴。
一种可选的实现方式中，所述导向内轴的外侧面和所述导向外轴的内侧面围设成滑道；所述第一结构件靠近所述转轴的一侧设有第一旋转件，所述第二结构件靠近所述转轴的一侧设有第二旋转件，所述第一旋转件和所述第二旋转件均位于所述滑道内；当所述第一结构件转动时，所述第一旋转件和所述第二旋转件绕所述导向内轴转动。由此，实现了第一结构件和第二结构件同轴转动。
一种可选的实现方式中，所述第三结构件上套设有第一支撑部，所述第一支撑部上设有第一导杆，所述第一滑槽内设有与所述第一导杆匹配的第一导轨；所述第四结构件上套设有第二支撑部，所述第二支撑部上设有第二导杆，所述第二滑槽内设有与所述第二导杆匹配的第二导轨；当所述第一结构件和/或所述第二结构件围绕所述转轴转动时，所述第一导杆沿所述第一导轨滑动，所述第二导杆沿所述第二导轨滑动。由此，实现了第三结构件与所述第一结构件的滑动连接，同时实现了第四结构件与所述第二结构件的滑动连接，减小了第一结构件和第二结构件转动过程中对柔性屏的拉扯 力，提高了柔性屏的平整性。
一种可选的实现方式中，所述第一结构件包括：第一叶片和第三叶片，所述第一叶片上设有第一凹槽，所述第三叶片上设有与所述第一凹槽匹配的第一滑块；所述第二结构件包括：第二叶片和第四叶片，所述第二叶片上设有第二凹槽，所述第四叶片上设有与所述第二凹槽匹配的第二滑块；当所述第一结构件和所述第二结构件围绕所述转轴转动时，所述第一滑块在所述第一凹槽内滑动，所述第二滑块在所述第二凹槽内滑动。由此，实现了第一叶片和第三叶片的滑动连接，同时实现了第二叶片和第四叶片的滑动连接，进一步减小了第一结构件和第二结构件转动过程中对柔性屏的拉扯力，提高了柔性屏的平整性。
本申请实施例的第二方面，提供一种折叠显示终端，包括：柔性屏，以及如上所述的转动机构，所述柔性屏的第一区域与所述第一结构件相连接；所述柔性显示屏的第二区域与所述第二结构件相连接；所述柔性显示屏的第三区域与所述转轴相连接；其中，所述第三区域位于所述第一区域和所述第二区域之间。由此，采用上述转动机构的折叠显示终端受到的拉扯力更小，提高了柔性屏的平整性。
附图说明
图1为现有技术中一种折叠显示终端的结构示意图；
图1a为图1中折叠显示终端的使用状态图；
图1b为图1中折叠显示终端的弯折状态图；
图1c为图1中折叠显示终端的展开状态图；
图2为本申请实施例提供的一种转动机构的立体结构示意图；
图2a为图2中转动机构的结构示意图；
图2b为折叠显示终端处于弯折状态的结构示意图；
图2c为折叠显示终端处于展开状态的结构示意图；
图3为本申请实施例提供的另一种折叠显示终端的结构示意图；
图3a为图3中折叠显示终端处于折叠状态的结构示意图；
图3b为图3中折叠显示终端处于展开状态的结构示意图；
图4为本申请实施例提供的另一种转动机构的结构示意图；
图5为本申请实施例提供的另一种折叠显示终端的结构示意图；
图5a为图5中的M-M剖视图；
图6为图5中连接器的结构示意图；
图7a为图5中一种第一转轴的结构示意图；
图7b为图5中另一种第一转轴的结构示意图；
图8为图5中转动机构的工作状态图；
图9为本申请实施例提供的另一种转动机构的结构示意图；
图10为图9中转轴的结构示意图；
图11为图10中凹轮和凸轮的配合状态图；
图12为本申请实施例提供的另一种转动机构的结构示意图；
图13为图12中转动机构的一种拆解结构示意图；
图14为图12中转轴的一种结构示意图；
图15为图12中转动机构的另一种拆解结构示意图；
图16为图12中转轴的另一种结构示意图；
图17为图12中的A-A剖视图；
图17a为图17中的转动机构的折叠状态图；
图18为图12中的B-B剖视图；
图18a为图18中的转动机构的折叠状态图；
图19为图12中转轴的结构示意图；
图19a为图12中转轴的拆解结构示意图；
图20为本申请实施例提供的另一种转动机构的结构示意图；
图20a图20中转动机构的另一种结构示意图；
图21为图20a中转动机构的C-C剖视图；
图22为本申请实施例提供的另一种转动机构的结构示意图；
图23为图22中转动机构的D-D剖视图；
图24为图23中凸轮的结构示意图；
图25为本申请实施例提供的另一种转动机构的结构示意图；
图26为图25中转动机构的一种局部结构示意图；
图27为图25中转动机构的另一种局部结构示意图。
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描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。
以下，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”等的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。
此外，本申请中，“上”、“下”等方位术语是相对于附图中的部件示意置放的方位来定义的，应当理解到，这些方向性术语是相对的概念，它们用于相对于的描述和澄清，其可以根据附图中部件所放置的方位的变化而相应地发生变化。
本申请实施例提供一种折叠显示终端，该折叠显示终端可以为手机、显示器、平板电脑、车载电脑等具有显示界面的产品。本申请实施例对上述折叠显示终端的具体形式不做特殊限制。
为了方便理解本申请实施例提供的折叠显示终端，下面结合附图1，对已有的一种折叠显示终端介绍如下：
如图1所示，折叠显示终端01包括柔性屏10。该柔性屏10可以为有源矩阵有机发光二极管(active matrix organic light emitting diode，AMOLED)显示屏。
AMOLED显示屏作为一种自发光显示屏，无需设置背光模组(back light module，BLM)。因此，当AMOLED显示屏中的衬底基板采用柔性树脂材料，例如聚对苯二甲酸乙二醇酯(polyethylene terephthalate，PET)构成时，AMOLED显示屏能够具有可弯折的特性。
此外，如图1所示，折叠显示终端01还包括用于承载柔性屏10的转动机构20。
该转动机构20包括第一结构件201、第二结构件202以及位于第一结构件201和第二结构件202之间的转轴203。
转轴203与第一结构件201、第二结构件202相连接。第一结构件201和第二结构件202可以分别绕转轴203进行旋转。第一结构件201和第二结构件202可以是壳体，也可以是电子设备的中框结构。
其中，第一结构件201和第二结构件202可以用于承载柔性屏10，使得柔性屏10在使用过程中尽量保持平整，并对柔性屏10的非显示面进行保护。
柔性屏10的一部分通过胶层30固定于第一结构件201上，一部分通过胶层30固定于第二结构件202上，一部分则通过胶层30固定在转轴203上。该胶层30可以为涂覆胶水后形成的薄膜层，本申请实施例对于该胶层30的具体形式不进行限定。此外，第一结构件201和第二结构件202上还可以设置有其他的电子元件，例如，摄像头、耳机、听筒、按键、电池等，本申请实施例对于第一结构件201和第二结构件202上设置的其他电子元件不进行限定。
第一结构件201和第二结构件202可以分别沿转轴203的轴线O-O进行旋转，从而带动柔性屏10折叠或者展开。如图1a所示，柔性屏可以弯折和展平，其中，图1a为柔性屏从180°展平到0°的展平过程，或者从0°折叠到180°的折叠过程。
如图1b所示，当第一结构件201和第二结构件202之间的夹角α为0°时，柔性屏10处于折叠状态。
或者，如图1c所示，当第一结构件201和第二结构件202之间的夹角α增大至180°时，柔性屏10处于展开状态。
然而，在第一结构件201和第二结构件202不具备弯折特性的情况下，柔性屏10上与第一结构件201、第二结构件202、转轴203通过胶层30相连接的区域在折叠和展开时会受到拉扯力，影响柔性屏的平整性。
为此，本申请实施例提供一种改进的转动机构。
为了减小第一结构件和第二结构件转动过程中对柔性屏的拉扯力，如图2、图2a所示，转动机构还包括第三结构件204和第四结构件214。所述第一结构件201上设有第一滑槽2011，所述第二结构件202上设有第二滑槽2021。
所述第三结构件204和所述第四结构件214可以为柱形结构的转动件，所述第三结构件204和所述第四结构件214的截面例如为圆形或多边形，本申请实施例对第三结构件和第四结构件的截面形状不做限制。第三结构件204的第一端与转轴203转动连接，第二端如图2所示，可以伸入所述第一滑槽2011内，并与所述第一滑槽2011滑动连接。使得当第一结构件201围绕所述转轴203的轴线O-O转动时，所述第一结构件201相对于所述第三结构件204，能够沿靠近或远离所述转轴203的方向滑动预设距离。
同理，第四结构件214的第一端与转轴203转动连接，第二端可以伸入所述第二滑槽2021内，并与所述第二滑槽2021滑动连接。使得当第二结构件202围绕所述转轴203的轴线O-O转动时，所述第二结构件202相对于所述第四结构件214，能够沿靠近或远离所述转轴203的方向滑动。
本申请实施例对第三结构件204与所述第一滑槽2011的连接方式以及第四结构件 214与所述第二滑槽2021的连接方式不做限制，只需实现滑动连接即可。
在本申请一种实现方式中，如图2所示，第三结构件204第二端的端部设有第一支撑部2044，第一支撑部2044上还设有第一导杆2045，第一导杆2045的轴线与第三结构件204的轴线方向垂直，所述第一滑槽2011两侧设有与所述第一导杆2045匹配的第一导轨2014，当所述第一结构件201转动时，所述第一导杆2045可以沿所述第一导轨2014滑动。
同理，所述第四结构件214的第二端的端部设有第二支撑部2144，所述第二支撑部2144上设有第二导杆2145，所述第二导杆2145的轴线与所述第四结构件214的轴线方向垂直，所述第二滑槽2021两侧设有与所述第二导杆2145匹配的第二导轨2024，当所述第二结构件202转动时，所述第二导杆2145可以沿所述第二导轨2024滑动。
示例性的，如图2b所示，当所述第一结构件201和/或所述第二结构件202围绕所述转轴203转动，使得所述第一结构件201和所述第二结构件202之间的夹角α小于180°时，柔性屏10被折叠。
在柔性屏10的折叠过程中，所述第一结构件201相对于所述第三结构件204，沿靠近所述转轴203的方向滑动，所述第二结构件202相对于所述第四结构件214，沿靠近所述转轴203的方向滑动。由此，第一结构件201能够相对于第三结构件204滑动，第二结构件214能够相对于第四结构件214滑动，可以释放部分弯折力，减小了对柔性屏的拉扯力，避免弯折过程中对柔性屏的拉扯力过大。
或者，如图2c所示，当所述第一结构件201和/或所述第二结构件202围绕所述转轴203转动，使得所述第一结构件201和所述第二结构件202之间的夹角α增大至180°时，柔性屏10处于展开状态。
在柔性屏10的展开过程中，所述第一结构件201相对于所述第三结构件204，沿远离所述转轴203的方向滑动；所述第二结构件202相对于所述第四结构件214，沿远离所述转轴203的方向滑动。由此，第一结构件201能够相对于第三结构件204滑动，第二结构件214能够相对于第四结构件214滑动，可以释放部分伸展力，减小了对柔性屏的拉扯力，避免伸展过程中对柔性屏的拉扯力过大。
本申请实施例提供的转动机构，所述第三结构件与所述第一结构件滑动连接，所述第四结构件与所述第二结构件滑动连接，减小了第一结构件、第二结构件和转轴对柔性屏的拉扯力，提高了柔性屏的平整性。
在本申请另一种实现方式中，请参考图3，图3a，图3b，第一结构件201包括：沿背离所述转轴203的方向顺次设置的第一叶片2010和第三叶片2019，第二结构件202包括：沿背离所述转轴203的方向顺次设置的第二叶片2020和第四叶片2029。柔性屏10的一部分通过胶层30固定于第三叶片2019上，一部分通过胶层30固定于第四叶片2029上，一部分则通过胶层30固定在转轴203上。所述第一叶片上例如还设有第一凹槽2018，所述第三叶片2019靠近所述第一凹槽2018的位置设有与所述第一凹槽2018匹配的第一滑块20191。
所述第一滑块20191伸入所述第一凹槽2018内，并与所述第一凹槽2018滑动连接。使得当第一结构件201围绕所述转轴203的轴线O-O转动时，所述第三叶片2019相对于所述第一叶片2010，能够沿靠近或远离所述转轴203的方向滑动预设距离。
同理，所述第二叶片2020上设有第二凹槽2028，所述第四叶片2029靠近所述第二凹槽2028的位置设有与所述第二凹槽2028匹配的第二滑块20291。
所述第二滑块20291伸入所述第二凹槽2028内，并与所述第二凹槽2028滑动连接。使得当第二结构件202围绕所述转轴203的轴线O-O转动时，所述第四叶片2029相对于所述第二叶片2020，能够沿靠近或远离所述转轴203的方向滑动预设距离。
示例性的，如图3a所示，当所述第一结构件201和/或所述第二结构件202围绕所述转轴203转动，使得所述第一结构件201和所述第二结构件202之间的夹角α为0°时，柔性屏被折叠。
在柔性屏的折叠过程中，所述第三叶片带动所述第一滑块20191在所述第一叶片2010的第一凹槽2018内沿靠近所述转轴203的方向滑动，所述第四叶片2029带动所述第二滑块20291在所述第二叶片2020的第二凹槽2028内沿靠近所述转轴203的方向滑动。由此，可以释放部分弯折力，减小了对柔性屏的拉扯力，避免弯折过程中对柔性屏的拉扯力过大。
或者，如图3b所示，当所述第一结构件201和/或所述第二结构件202围绕所述转轴203转动，使得所述第一结构件201和所述第二结构件202之间的夹角α增大至180°时，柔性屏处于展开状态。
在柔性屏的展开过程中，所述第三叶片2019带动所述第一滑块20191在所述第一叶片2010的第一凹槽2018内沿远离所述转轴203的方向滑动；所述第四叶片2029带动所述第二滑块20291在所述第二叶片2020的第二凹槽2028内沿远离所述转轴203的方向滑动。由此，可以释放部分伸展力，减小了对柔性屏的拉扯力，避免伸展过程中对柔性屏的拉扯力过大。
本申请实施例提供的转动机构，通过第一叶片与第三叶片滑动连接，第二叶片与第四叶片滑动连接，进一步减小了第三叶片、第四叶片和转轴对柔性屏的拉扯力，提高了柔性屏的平整性。
在本申请另一种实现方式中，如图4所示，转动机构包括：转轴203、第一结构件201、第二结构件202、第三结构件204和第四结构件214。
所述第一结构件201包括：沿背离所述转轴203的方向顺次设置的第一叶片2010和第三叶片2019，第二结构件202包括：沿背离所述转轴203的方向顺次设置的第二叶片2020和第四叶片2029。
所述第一叶片2010上设有第一滑槽2011，所述第三结构件204一端与所述转轴203连接，另一端伸入所述第一滑槽2011内，并与所述第一滑槽2011滑动连接。
所述第一叶片2010靠近所述第三叶片2019的位置还设有第一凹槽(图中未示出，可参考图3b中的2018)，所述第三叶片2019上设有与所述第一凹槽匹配的第一滑块20191，所述第一滑块20191伸入所述第一凹槽内，并与所述第一凹槽滑动连接。
第二结构件202和第四结构件214的结构可参考第一结构件201和第三结构件204的描述，在此不再赘述。
由此，第三结构件204与第一滑槽2011滑动连接，第一滑块20191与第一凹槽滑动连接，通过设置两组滑动连接组件，进一步减小了转动过程中第一结构件和第二结构件对柔性屏的拉扯力，提高了柔性屏的平整性。
本申请实施例对所述转动机构的具体结构不做限制，在本申请一种实现方式中，如图4所示，所述转动机构包括：2个沿轴线方向顺次排布的转轴203，以及位于转轴203两侧的第一结构件201和第二结构件202。
其中，第一结构件201包括：2个第一叶片2010和1个第三叶片2019。
每个转轴203上连接1个第一叶片2010和至少1个第三结构件204，且每个第一叶片2010上设有一个第一滑槽2011，第三结构件204与第一滑槽2011滑动连接。
每个第一叶片2010靠近第三叶片2019的一端还设有1个第一凹槽，第三叶片2019上设有2个与所述第一凹槽匹配的第一滑块20191，所述第一凹槽与所述滑块20191滑动连接。
第二结构件202的具体结构可参考上述第一结构件201的描述，在此不再赘述。
本申请实施例还提供一种转动机构。图5为本申请实施例提供的另一种折叠显示终端的结构示意图。图5a为图5中的M-M剖视图。如图5、图5a所示，所述转动机构包括：第一结构件201、第二结构件202，第三结构件204、第四结构件214、和转轴。所述转轴包括：第一转轴2031和第二转轴2032。其中，第一结构件201、第二结构件202、第一转轴2031和第二转轴2032的具体结构可参考上述，在此不再赘述。
在本申请一种实现方式中，如图5、图5a所示，第一结构件201包括：沿背离所述转轴203的方向顺次设置的第一叶片2010和第三叶片2019，第二结构件202包括：沿背离所述转轴203的方向顺次设置的第二叶片2020和第四叶片2029。
所述第一叶片2010上例如还设有第一凹槽2018，所述第三叶片2019靠近所述第一凹槽2018的位置设有与所述第一凹槽匹配的第一滑块20191。
所述第一滑块20191伸入所述第一凹槽2018内，并与所述第一凹槽2018滑动连接。
同理，所述第二叶片2020上设有第二凹槽2028，所述第四叶片2029靠近所述第二凹槽2028的位置设有与所述第二凹槽2028匹配的第二滑块20291。
所述第二滑块20291伸入所述第二凹槽2028内，并与所述第二凹槽2028滑动连接。
由此，通过第一叶片与第三叶片滑动连接，第二叶片与第四叶片滑动连接，减小了第一结构件、第二结构件和转轴对柔性屏的拉扯力，提高了柔性屏的平整性。
接着参考图5、图5a，所述转动机构例如还包括：连接器205。连接器205可以为C型卡。为了便于说明，本申请实施例以C型卡为例说明连接器205与转轴的连接关系，C型卡不构成对连接器205的结构形式的限定。所述第一转轴2031通过所述连接器205与所述第二转轴2032连接。
示例性的，图6为图5中连接器的结构示意图，如图6所示，所述连接器205至少包括：第一C型卡2051，其中，所述第一C型卡2051套设在所述第一转轴2031上，当所述第一结构件201转动时，所述第一C型卡2051不动，所述第一转轴2031在所述第一C型卡2051内转动。
在第一转轴2031转动过程中，第一C型卡2051会产生第一形变或第二形变，其中，第二形变的形变量大于所述第一形变的形变量，当第一转轴转动至特定角度区间内时，第一C型卡2051由第二形变变为第一形变，其释放的能量可以为第一转轴2031 提供扭矩，驱动第一转轴2031转动，进而带动第三结构件204和第一结构件201随之转动，实现了柔性屏的自动展平和折叠。并且，当第一C型卡2051的形变为第一形变时，可以为第三结构件204和第一结构件201提供保持力。下面结合图6、图7a、图7b和图8进行说明。
如图6所示，所述第一C型卡2051一侧开口，且其内侧具有第一平面20511、第一曲面20512、以及与所述开口部相对的第一凹陷部20531。
所述第一平面20511到第一C型卡中心的距离为L1，第一曲面20512到第一C型卡中心的距离等于L2，其中，第一凹陷部20531到第一C型卡中心的距离则大于L2。
图7a为图5中一种第一转轴的结构示意图，如图7a所示，所述第一转轴2031为柱形结构，其中，所述第一转轴2031用于与C型卡接触的表面包括：与所述第一平面20511匹配的第三平面20311和第五平面20312，以及与所述第一曲面20512匹配的第二曲面20313。
本申请对第三平面20311和第五平面20312的相对位置关系不做限制，只需使得当第一转轴2031在第一C型卡内转动到预设位置时，第三平面20311可以和第一C型卡的第一平面配合，与此同时，第五平面20312可以和第一C型卡的第一凹陷部或开口配合。
在本申请一种实现方式中，如图7a所示，所述第三平面20311和所述第五平面20312相对设置。
在本申请另一种实现方式中，如图7b所示，所述第三平面20311和所述第五平面20312之间的夹角可以为90°。其中，所述第五平面20312与第一转轴2031轴线之间的距离，以及所述第三平面20311与第一转轴2031轴线之间的距离均为R1，R1＝L1；第一转轴2031第二曲面20313处的半径为R2，R2＝L2。
如图8所示，所述第一C型卡2051的第一平面20511和所述第一转轴2031的第三平面20311接触，且所述第一转轴2031的第五平面20312位于所述连接部的第一凹陷部20531，第三平面20311到第一转轴轴线之间的距离R1等于所述第一平面20511到第一C型卡中心的距离L1，第五平面20312到第一转轴轴心之间的距离R1小于所述第一凹陷部20531到第一C型卡中心的距离，此时，所述第一C型卡内部各位置受力均匀，所述第一C型卡2051的形变为第一形变。
可以理解的是，从图8中所示的状态开始，当第一结构件201带动所述第一转轴2031沿顺时针方向或沿逆时针方向旋转时，所述第一转轴的第三平面20311离开第一C型卡的第一平面20511，第一转轴的第五平面20312离开第一C型卡的第一凹陷部，所述第一转轴2031的第二曲面20313与所述第一C型卡的第一平面20511接触，第一转轴2031第二曲面20313处的半径R2大于第一平面20511到第一C型卡中心的距离L1，所述第一转轴2031的第二曲面20313对所述所述第一C型卡的第一平面20511产生推力，所述第一C型卡2051的形变为所述第二形变。
由此，可以将C型卡产生第一形变的位置作为柔性屏的展平位置或折叠位置，能够为柔性屏的折叠或展平提供保持力。并且，当第一转轴转动至特定角度区间内时，例如，当第五平面20312开始和第一平面20511接触时，即使没有外力作用，C型卡 释放能量提供的扭矩也可以驱动第一转轴转动，带动第一结构件随之转动，实现了柔性屏的自动展平和折叠，提高了用户体验。
示例性的，当所述第一结构件201与所述第二结构件202处于折叠状态或展开状态时，所述第一结构件201与所述第二结构件202的夹角例如为0°或180°，所述第三平面20311或所述第五平面20312与所述第一平面20511配合，此时，所述第一C型卡的形变为所述第一形变。
当所述第一结构件201与所述第二结构件202处于折叠状态或展开状态之间时，所述第一结构件201与所述第二结构件202的夹角在0°和180°之间，所述第一转轴2031的第二曲面20313和所述第一平面20511接触，此时，所述第一C型卡的形变为所述第二形变。
由此，当第一C型卡由第二形变变为第一形变时，第一C型卡回弹并释放能量，为所述第一结构件的转动提供扭矩。从而在转动机构闭合时可以提供闭合力，使折叠过程更轻松；在转动机构从折叠到展平的初始阶段提供适当阻力，避免柔性屏展开过快；在转动机构展平到特定角度时开始提供适当助力，实现自动展平；在展开后提供展平保持力。
在本申请另一种实现方式中，所述连接器205还包括：与所述第一C型卡2051开口方向相反的第二C型卡2052，所述第二C型卡2052套设在所述第二转轴2032上，所述第一C型卡2051通过连接部2053和所述第二C型卡2052连接。
由此，当所述第一结构件201转动时，所述第一C型卡2051不动，所述第一转轴2031在所述第一C型卡2051内转动。当所述第二结构件202转动时，所述第二C型卡2052不动，所述第二转轴2032在所述第二C型卡2052内转动。
其中，所述第二C型卡2052的结构和工作过程可参考上述第一C型卡2051的描述，所述第二转轴2032的结构和工作过程可参考上述第一转轴2031的描述，在此不再赘述。
本申请实施例提供的转动机构，通过设置C型卡，可以为第一转轴和第二转轴的转动提供扭矩。第一转轴和第二转轴可以将该扭矩通过第三结构件和第四结构件传递给第一结构件和第二结构件，最终作用于柔性屏，为柔性屏的折叠或展平提供保持力。
本申请实施例还提供一种转动机构。图9为本申请实施例提供的另一种转动机构的结构示意图。如图9所示，所述转动机构包括：第一结构件201、第二结构件202，第三结构件204、第四结构件214和转轴203。
所述第一结构件201上设有第一滑槽2011，所述第二结构件202上设有第二滑槽2021。
第三结构件204的第一端与转轴203转动连接，第二端如图2所示，可以伸入所述第一滑槽2011内，并与所述第一滑槽2011滑动连接。
第四结构件214的第一端与转轴203转动连接，第二端可以伸入所述第二滑槽2021内，并与所述第二滑槽2021滑动连接。
第三结构件204与所述第一滑槽2011的滑动连接结构，以及第四结构件214与所述第二滑槽2021的滑动连接结构可参考对图2的描述，在此不再赘述。
其中，转轴203为2个，2个转轴203从上往下顺次排布，每个转轴上均连接有 一个第三结构件204和一个第四结构件214。第一结构件201和第二结构件202均为1个，每个第一结构件201上设有2个第一滑槽2011，每个第二结构件202上设有2个第二滑槽2021。每个第三结构件对应1个第一滑槽2011，每个第四结构件214对应1个第二滑槽2021。
图10为图9中转轴的结构示意图。如图10所示，所述转轴203包括：第三转轴2030，所述第三转轴2030上依次套设有：螺母2033、第三结构件204、第一弹性部件2034、平垫2035、凸轮2036、凹轮2037、第四结构件214。
其中，所述弹性部件2034例如为碟簧。
所述第三转轴2030与所述第四结构件214的配合面，以及所述第三转轴2030和所述凹轮2037的配合面均为光滑的圆柱面，使得所述第四结构件214和所述凹轮2037能够绕所述第三转轴2030转动。
所述第三转轴2030与所述凸轮2036的配合面、所述第三转轴2030与所述平垫2035的配合面、所述第三转轴2030与所述弹性部件2034的配合面，以及所述第三转轴2030与所述第三结构件204的配合面均为光滑的棱柱面，使得所述凸轮2036只能沿所述第三转轴2030的轴线方向滑动，以压缩或释放所述弹性部件2034和所述平垫2035。同时，使得所述第一结构件201转动时能够带动所述第三转轴2030转动。
所述螺母2033与所述第三转轴2030的端部固定连接，所述螺母用于将所述第三结构件204、第一弹性部件2034、平垫2035、凸轮2036、凹轮2037、第四结构件214限制在所述转轴上，避免所述第三结构件204、第一弹性部件2034、平垫2035、凸轮2036、凹轮2037、第四结构件214在使用中脱出。
其中，所述凹轮2037上设有凸块20373，所述第四结构件214上设有与所述凸块相匹配的凹陷20374。工作时，所述凸块20373插入所述凹陷20374中，当所述第四结构件214绕所述第三转轴2030转动时，所述凹轮2037能够随之转动。
所述凸轮2036上设有凸部20361，所述凹轮2037上设有平面部20374，以及与所述凸部20361匹配的第一凹部20371和第二凹部20372。
在第三转轴2030转动过程中，凸轮2036上的凸部20361会转入凹轮2037上的第一凹部20371和第二凹部20372内，所述第一弹性部件2034的形变为第一形变。
第三转轴2030继续转动，凸轮2036上的凸部20361从凹轮2037上的第一凹部20371和第二凹部20372中转出，并与所述平面部20374接触，所述第一弹性部件2034的形变为第二形变。
所述第二形变的形变量大于所述第一形变的形变量。
当所述第一弹性部件2034由第二形变恢复为第一形变时，其释放的能量可以为第三转轴3020提供扭矩，驱动第三转轴2030转动，进而带动第三结构件204和第一结构件201随之转动，实现了柔性屏的自动展平和折叠。并且，当凸轮2036上的凸部20361位于凹轮2037上的第一凹部20371和第二凹部20372内时，可以为第三结构件204和第一结构件201提供保持力。
下面结合图11进行说明。
如图11所示，所述凸轮2036的凸部20361与所述凹轮2037的第一凹部20371配合，此时，所述第一弹性部件2034产生第一形变。
可以理解的是，当所述第四结构件214绕所述第三转轴2030转动时，所述凹轮2037随之转动，所述凸轮2036的凸部20361逐渐从第一凹部20371或第二凹部20372中转出，与所述平面部20374接触，使得所述凸轮2036沿所述第三转轴2030向远离凹轮2037的方向滑动，所述第一弹性部件2034产生第二形变。
或者，当所述第三结构件204转动时，所述第三转轴2030随之转动，带动所述凸轮2036的凸部逐渐从所述凹轮2037的第一凹部20371或第二凹部20372中转出，进而使得所述凸轮2036沿所述第三转轴2030向远离凹轮2037的方向滑动，所述第一弹性部件2034产生第二形变。
当所述第四结构件214绕所述第三转轴2030继续转动，或所述第三结构件204继续转动带动所述第三转轴2030转动，直到所述凹轮的凹部再次转动到与所述凸轮的凸部所在位置。此时，所述第一弹性部件2034和所述平垫回弹并释放能量，对转轴提供扭矩，使得所述凸轮在所述弹簧的作用下回到所述凹轮的凹部中，所述第一弹性部件2034产生第一形变。
可以将凸轮和凹轮的配合位置作为柔性屏的展平位置或折叠位置，能够为柔性屏的折叠或展平提供保持力。
示例性的，当所述第三结构件204与所述第四结构件214处于折叠状态或展开状态时，所述第三结构件204与所述第四结构件214的夹角例如为0°或180°，所述凸轮的凸部与所述至少一个凹部匹配，所述第一弹性部件的形变为所述第一形变；
当所述第三结构件204与所述第四结构件214处于折叠状态和展开状态之间时，所述第三结构件204与所述第四结构件214之间的夹角在0度和180度之间，所述凸轮的凸部与所述平面部接触，所述第一弹性部件的形变为所述第二形变。
由此，当第一弹性部件2034由第二形变恢复至第一形变时，第一弹性部件回弹并释放能量，为所述第三结构件和所述第四结构件提供扭矩，从而在转动机构闭合时可以提供闭合力，使折叠过程更轻松。转动机构从折叠到展平的初始阶段时，第一弹性部件2034首先由第一形变到第二形变，为所述第三结构件和所述第四结构件提供适当阻力，避免柔性屏展开过快；在转动机构展平到特定角度时，第一弹性部件2034接着由第二形变恢复至第一形变，为所述第三结构件和所述第四结构件提供适当助力，实现自动展平；在展开后，第一弹性部件2034为第一形变，能够为所述第三结构件和所述第四结构件提供展平保持力。
本申请实施例提供的转动机构，通过设置弹性部件、凹轮和凸轮配合，可以为第三转轴的转动提供扭矩，第三转轴可以将该扭矩通过第三结构件和第四结构件传递给第一结构件和第二结构件，最终作用于柔性屏，为柔性屏的折叠或展平提供保持力。
并且，当凸轮和凹轮运动至特定角度区间时，例如当凸轮开始进入凹轮中时，在该位置无需提供外力，即可带动第三结构件或第四结构件转动，实现了柔性屏的自动展平或者自动折叠，提高了用户体验。
本申请实施例还提供一种转动机构。图12为本申请实施例提供的另一种转动机构的结构示意图。如图12所示，转动机构包括第一结构件201、第二结构件202以及位于第一结构件201和第二结构件202之间的转轴203。
所述第一结构件201包括：沿背离所述转轴203的方向顺次设置的第一叶片2010 和第三叶片2019，第二结构件202包括：沿背离所述转轴203的方向顺次设置的第二叶片2020和第四叶片2029。
其中，所述第一叶片2010和所述第三叶片2019之间的滑动连接结构可参考图3、图3a、图3b对应的描述，在此不再赘述。
此外，如图13、图14所示，所述转轴203包括：导向内轴2038和导向外轴2039，所述导向外轴2039罩设于所述导向内轴2038，所述导向内轴2038可以通过螺钉2001与所述导向外轴2039固定连接。
如图15、图16、图17、图17a、图18、图18a所示，所述导向内轴的外径例如小于所述导向外轴的内径，所述导向内轴2038朝向所述导向外轴2039的一侧设有外圆弧，所述导向外轴2039朝向所述导向内轴2038的一侧设有内圆弧，所述外圆弧和所述内圆弧相对设置，所述内圆弧和所述外圆弧围设成圆弧形的滑道20380。
所述第一结构件201靠近所述转轴203的一侧设有第一旋转件2012，所述第一旋转件2012位于所述导向内轴2038和所述导向外轴2039之间的滑道20380内，当所述第一结构件201转动时，所述第一旋转件2012随之在所述滑道内绕导向内轴2038转动。
同理，所述第二结构件202靠近所述转轴203的一侧设有第二旋转件2022，所述第二旋转件2022位于所述导向内轴2038和所述导向外轴2039之间的滑道20380内，当所述第二结构件202转动时，所述第二旋转件2022随之在所述滑道20380内转动。
其中，第一旋转件2012和第二旋转件2022沿轴线O-O依次间隔设置，且第一旋转件2012和第二旋转件2022共用轴线。由此，实现了第一结构件201和第二结构件202同轴转动。
如图19、图19a所示，所述转轴203还包括：第一转轴2031、第二转轴2032。
其中，所述导向内轴2038的长度小于所述导向外轴2039长度，所述导向外轴2039长度方向的第一端相对所述导向内轴2038长度方向的第一端沿长度方向延伸，其中，所述导向内轴2038长度方向的第一端靠近所述导向外轴2039长度方向的第一端，或与所述导向外轴2039长度方向的第一端平齐。所述第一转轴2031和所述第二转轴2032设置于所述导向内轴2038长度方向的第一端与所述导向外轴2039长度方向的第一端之间。
所述导向外轴2039的开口处还设有压盖2004，所述压盖2004用于将所述第一转轴2031和所述第二转轴2032固定在所述导向外轴2039内。
如图19所示，第一转轴2031的轴线例如为O’-O’，第一结构件201通过第三结构件204与所述第一转轴2031转动连接，第一结构件201可以绕轴线O’-O’转动。
同理，第二转轴2032的轴线例如为O”-O”，第二结构件202通过第四结构件214与所述第二转轴2032转动连接，第二结构件202可以绕轴线O”-O”转动。
其中，柔性屏的轴线O-O与第一结构件的轴线O’-O’和第二结构件的轴线O”-O”不同，第一结构件和第二结构件转动过程中容易对柔性屏产生较大的拉扯力，影响柔性屏的平整性。
为此，在本申请一种实现方式中，如图20、图20a所示，所述导向外轴2039上设置有第一开口2013和第二开口2023，所述第三结构件204第一端与所述第一转轴 2031连接，第二端穿过所述第一开口2013后伸入所述第一滑槽2011内，且第二端的端部设有第一支撑部2044，所述第一支撑部2044上还设有第一导杆2045，所述第一导杆2045的轴线与所述第三结构件204的轴线方向垂直，所述第一滑槽2011两侧设有与所述第一导杆2045匹配的第一导轨2014，当所述第一结构件201转动时，所述第一导杆2045可以沿所述第一导轨2014滑动。
同理，所述第四结构件214第一端与所述第二转轴2032连接，第二端穿过所述第二开口2023后伸入第二滑槽2021内，且第二端的端部设有第二支撑部2144，所述第二支撑部2144上设有第二导杆2145，所述第二导杆2145的轴线与所述第四结构件214的轴线方向垂直，所述第二滑槽2021两侧设有与所述第二导杆2145匹配的第二导轨2024，当所述第二结构件202转动时，所述第二导杆2145可以沿所述第二导轨2024滑动。
由此，第三结构件201与第一滑槽2011滑动连接，第四结构件214与第二滑槽滑动连接，减小了第一结构件和第二结构件转动过程中对柔性屏的拉扯力，提高了柔性屏的平整性。
然而，可以理解的是，当第一结构件201与第二结构件202转动不同步时，例如当第一结构件201转动，第二结构件202不动时，第一结构件201与第二结构件202对柔性屏的拉扯力不同，容易使得柔性屏向一侧偏移，影响柔性屏与转动机构连接的稳定性。
如图20、图20a、图21所示，所述转动机构还包括：第一齿轮2041和第二齿轮2141。所述第一齿轮2041套设在所述第一转轴2031上，且所述第一齿轮2041与所述第一转轴2031转动连接。所述第三结构件204靠近第一转轴2031的一端与所述第一齿轮2041连接。
同理，所述第二齿轮2141套设在所述第二转轴2032上，所述第二齿轮2141与所述第二转轴2032转动连接。所述第四结构件214靠近第二转轴2032的一端与所述第二齿轮2141连接。
所述第一齿轮2041和所述第二齿轮2141并列设置在所述第一转轴2031和所述第二转轴2032之间，且所述第一齿轮2041和所述第二齿轮2141啮合，使得当所述第一齿轮2041转动时，可以带动所述第二齿轮2141同步转动，或，当所述第二齿轮2141转动时，可以带动所述第一齿轮2041同步转动。
下面以第一结构件为例对该转动机构的工作过程进行说明。当第一结构件201转动时，所述第三结构件204和第一齿轮2041随之围绕第一转轴2031转动，同时，通过齿轮的啮合作用，可以将第一齿轮2041的运动和动力传递给第二齿轮2141，使得第二齿轮2141获得转速和扭矩，进而带动第四结构件214随第二齿轮2141的转动而转动，并带动第二结构件202转动。由此，实现了第一结构件201和第二结构件202的同步运动，提高了柔性屏与转动机构连接的稳定性。
可以理解的是，所述第三结构件204作用在第一结构件201上，所述第四结构件214作用在第二结构件202上，在转动过程中，齿轮的啮合作用能够为在转动机构的展开和折叠过程中传递扭矩。
本申请实施例提供的转动机构，可以通过齿轮的啮合作用为转动机构的展开和折 叠传递扭矩，实现了第一结构件和第二结构件的同步运动，进而实现了转轴两侧的柔性屏的同步。
同时，由于转动件直接与齿轮连接，力臂的长度约为转轴的半径加转动件的长度，上述两个实施例中，分别通过C型卡和凸轮提供扭矩，其力臂的长度约为转轴的半径，与上述C型卡和凸轮结构相比，力臂更长，扭矩更大，能够更好的为转动机构的展开和折叠传递扭矩。
如图22、图23、图24所示，在本申请另一种实现方式中，所述转动机构至少包括：第一结构件201、第二结构件202、第三结构件204、第四结构件214和转轴203。所述转轴203包括：导向内轴、导向外轴、第一转轴2031、第二转轴2032。所述第一结构件201、所述第二结构件202、所述第三结构件204、所述第四结构件214、所述导向内轴2038、所述导向外轴2039、所述第一转轴2031以及所述第二转轴2032的具体结构可参考上述实施例，在此不再赘述。
其中，所述第一转轴2031上套设有第一凸轮2042，所述第二转轴2032上套设有第二凸轮2142，所述第一凸轮2042可以与所述第二凸轮2142固定连接。当第一结构件201和第二结构件202转动时，第一转轴2031、第二转轴2032、第一凸轮2042和第二凸轮2142相对于转动轴心是不动的。
所述第三结构件204靠近所述第一转轴2031的一端设有能够沿所述第一凸轮2042运动的第一运动件2047，其中，所述第一运动件2047与所述第三结构件204可以是一体成型。
同理，所述第四结构件214靠近所述第二转轴2032的一端设置有能够沿所述第二凸轮2142运动的第二运动件2147，所述第二运动件2147与所述第四结构件214可以是一体成型。
此外，所述第三结构件204沿靠近所述第一结构件201的方向依次套设有第二弹性部件2043、第一支撑部2044，以及用于防止第二弹性部件2043和第一支撑部2044脱出的第一限位部(图22中未示出，可参考图26中的2046)，且所述第一支撑部2044上设有第一导杆2045，所述第一导杆2045的轴线与所述第三结构件204的轴线方向垂直，所述第一结构件201的滑槽两侧设有与所述第一导杆2045匹配的第一导轨2014，当所述第一结构件201转动时，所述第一导杆2045可以沿所述第一导轨2014滑动。
所述第一弹性部件204可以是弹簧。
下面以第一结构件201为例对转动机构的工作过程进行说明。由于第一凸轮2042不同位置处的半径不同，示例性的，如图24所示，所述第一凸轮具有第一表面20421、第二表面20422和第三表面20423。其中，所述第一表面20421和所述第二表面20422为平面，所述第三表面20423为弧形面，所述第一表面20421和所述第二表面20422到第一转轴2031的轴线的距离小于所述第三表面20423处的半径。所述第一表面20421和所述第二表面20422之间的夹角可以为90度。
当第一结构件201转动时，所述第三结构件204带动第一运动件2047沿第一凸轮2042表面运动，当所述第三结构件204与所述第四结构件214处于折叠状态时，所述第三结构件204与所述第四结构件214之间的夹角为0度，所述第一运动件2047与所述第一表面20421接触，所述第二弹性部件2043的形变为第一形变。
当所述第三结构件204与所述第四结构件214处于展开状态时，所述第三结构件204与所述第四结构件214之间的夹角为180度时，所述第三结构件204与所述第二表面20422接触，所述第二弹性部件2043的形变为第一形变。
当所述第三结构件204与所述第四结构件214处于折叠状态和展开状态之间时，所述第三结构件204与所述第四结构件214之间的夹角在0度和180度之间，所述第三结构件204与所述第三表面20423接触，所述第二弹性部件2043的形变为第二形变，所述第二形变的形变量大于所述第一形变的形变量。
因此，当第二弹性部件2043由第二形变恢复至第一形变时，第二弹性部件回弹并释放能量，为所述第三结构件提供扭矩，从而在转动机构闭合时可以提供闭合力，使折叠过程更轻松；在转动机构从折叠到展平的初始阶段，第二弹性部件2043由第一形变变为第二形变，为所述第三结构件提供适当阻力，避免柔性屏展开过快；在转动机构展平到特定角度时，第二弹性部件2043再次由第二形变变为第一形变，为所述第三结构件提供适当助力，实现自动展平；在展开后第二弹性部件2043为第一形变，能够为所述第三结构件提供展平保持力。
由此，可以将第一运动件2047和第一凸轮的第一表面和第二表面的配合位置作为柔性屏的展平位置或折叠位置，能够为柔性屏的折叠或展平提供保持力。
在本申请另一种实现方式中，所述第四结构件214沿靠近所述第二结构件202的方向依次套设有第三弹性部件2143、第二支撑部2144，以及用于防止第三弹性部件2143和第二支撑部2144脱出的第二限位部(图22中未示出，可参考图26中的2146)，且所述第二支撑部2144上设有第二导杆2145，所述第二导杆2145的轴线与所述第四结构件214的轴线方向垂直，所述第二结构件202的滑槽两侧设有与所述第二导杆2145匹配的第二导轨2024，当所述第二结构件202转动时，所述第二导杆2145沿所述第二导轨2024滑动。
所述第三弹性部件2143可采用与所述第二弹性部件2043相同的结构，在此不再赘述。所述第二结构件202的工作过程可参考上述第一结构件201的描述，在此不再赘述。
可以理解的是，所述第三结构件204作用在第一结构件201上，所述第四结构件214作用在第二结构件202上，在转动过程中能够为转动机构的展开和折叠提供扭矩。
本申请实施例提供的转动机构，通过弹簧、凸轮相配合，可以为第一转轴、第二转轴的转动提供扭矩，第一转轴可以将该扭矩通过第三结构件传递给第一结构件，第二转轴可以将该扭矩通过第四结构件传递给第二结构件，最终作用于柔性屏，为柔性屏的折叠或展平提供保持力。
本申请实施例对提供扭矩的结构的种类和数量不做限制。每个转动机构中可以设置1组或1组以上用于提供扭矩的结构，为转动机构的展开和折叠提供足够的扭矩。
在本申请另一种实现方式中，所述转动机构包括3组用于提供扭矩的结构。如图25、图26、图27所示，所述转动机构包括：第一结构件201、第二结构件202、转轴203、第三结构件204、第四结构件214、第五结构件206、第六结构件216、第七结构件208和第八结构件218。
其中，所述转轴203包括：导向内轴、导向外轴、第一转轴2031、第二转轴2032。 所述第一结构件201、所述第二结构件202、所述第三结构件204、所述第四结构件214、所述导向内轴2038、所述导向外轴2039、所述第一转轴2031以及所述第二转轴2032的具体结构可参考上述实施例，在此不再赘述。
第三结构件204、第四结构件214、第五结构件206、第六结构件216、第七结构件208、第八结构件218例如可以采用相同的结构。
所述第三结构件204、所述第五结构件206和所述第七结构件208可以并列设置在第一滑槽2011内。
同理，所述第四结构件214、所述第六结构件216和所述第八结构件218可以并列设置在第二滑槽2021内。
所述第一转轴2031上套设有第一齿轮2041，且所述第一齿轮2041与所述第一转轴2031转动连接。所述第三结构件204靠近所述第一转轴2031的一端与所述第一齿轮2041连接。
同理，所述第二转轴2032上套设有第二齿轮2141，且所述第二齿轮2141与所述第二转轴2032转动连接。所述第四结构件214靠近所述第二转轴2032的一端和所述第二齿轮2141连接。所述第二齿轮2141，与所述第一齿轮2041啮合。
所述第一转轴2031上还套设有第一凸轮2042，所述第五结构件206靠近所述第一转轴2031的一端设有沿所述第一凸轮2042运动的第一运动件2047。其中，所述第一运动件2047与所述第五结构件206可以是一体成型。所述第一运动件2047例如同时套设在所述第三结构件204和第七结构件208上，使得第三结构件204、第五结构件206和第七结构件208可以同步转动。
所述第二转轴2032上还套设有第二凸轮2142，其中，所述第一凸轮2042与所述第二凸轮2142固定连接。所述第六结构件216靠近所述第二转轴2032的一端设置有沿所述第二凸轮2142运动的第二运动件2147，所述第二运动件2147与所述第六结构件216可以是一体成型。所述第二运动件2147例如同时套设在所述第四结构件214和第八结构件218上，使得第四结构件214、第六结构件216和第八结构件218可以同步转动。
所述第一转轴2031上套设有第三齿轮2081，且所述第三齿轮2081与所述第一转轴2031转动连接。所述第七结构件208靠近所述第一转轴2031的一端与所述第三齿轮2081连接。
同理，所述第二转轴2032上套设有第四齿轮2181，且所述第四齿轮2181与所述第二转轴2032转动连接。所述第八结构件218靠近所述第二转轴2032的一端与所述第四齿轮2181连接，所述第四齿轮2181和所述第三齿轮2081啮合。
所述第一转轴2031和所述第二转轴2032两端还设有用于控制所述第一转轴2031和所述第二转轴2032之间的轴间距的第一垫片2002和第二垫片2003。
其中，所述第三结构件204、所述第五结构件206和所述第七结构件208上依次套设有第二弹性部件2043，能够同时沿所述第三结构件204、所述第五结构件206和所述第七结构件208滑动的第一支撑件2044，以及用于防止第二弹性部件2043和第一支撑件2044脱出的第一限位部2046，且所述第一支撑件2044上设有第一导杆2045，所述第一结构件201的滑槽内设有与所述第一导杆2045匹配的第一导轨2014，当所 述第一结构件201转动时，所述第一导杆2045沿所述第一导轨2014滑动。
在本申请另一种实现方式中，所述第四结构件214、所述第六结构件216和所述第八结构件218上依次套设有第三弹性部件2143，能够同时沿所述第四结构件214、所述第六结构件216和所述第八结构件218滑动的第二支撑件2144，以及用于防止第三弹性部件2143和所述第二支撑件2144脱出的第二限位部2146，且所述第二支撑件2144上设有第二导杆2145，所述第二结构件202的滑槽内设有与所述第二导杆2145匹配的第二导轨2024，当所述第二结构件202转动时，所述第二导杆2145沿所述第一导轨2024滑动。
下面以第一结构件201为例对转动机构的工作过程进行说明。当第一结构件201转动时，所述第三结构件204和第一齿轮2041随之围绕第一转轴2031转动，通过齿轮的啮合作用，可以将第一齿轮2041的运动和动力传递给第二齿轮2141，使得第二齿轮2141获得转速和扭矩，带动第四结构件214转动；所述第七结构件208带动第三齿轮2081围绕第一转轴2031转动，通过齿轮的啮合作用，将第三齿轮2081的运动和动力传递给第四齿轮2181，使得第四齿轮2181获得转速和扭矩，带动第八结构件218转动，进而带动第二结构件202转动。由此，实现了第一结构件201和第二结构件202的同步运动。同时，在转动过程中，齿轮的啮合作用能够在转动机构的展开和折叠过程中传递扭矩。
与此同时，当第一结构件201转动时，所述第六结构件216带动第一运动件2047沿第一凸轮2042运动，当第一运动件2047运动到第一凸轮的第一表面或第二表面时，第二弹性部件2043的形变为第一形变。当第一运动件2047运动到第一凸轮的第三表面时，第二弹性部件2043的形变为第二形变。所述第二形变的形变量大于所述第一形变的形变量。当第二弹性部件2043由第二形变恢复为第一形变，能够回弹并释放能量，为转动机构提供扭矩。
第二结构件202的工作过程可参考上述第一结构件201的描述，在此不再赘述。
本申请实施例提供的转动机构，可以通过齿轮的啮合作用，实现转轴两侧转动件的同步转动，避免只有一侧转动件转动引起的柔性屏偏移，提高了柔性屏与转动机构连接的稳定性。同时，在齿轮的啮合作用、以及凸轮与弹簧共同作用下，在转动机构闭合时可以提供闭合力，使折叠过程更轻松；在转动机构从折叠到展平的初始阶段提供适当阻力，避免柔性屏展开过快；在转动机构展平到特定角度时开始提供适当助力，实现自动展平；在展开后提供展平保持力。
并且，转动件的布置为与转轴的轴线垂直，力臂更长，扭矩更大，能够为转动机构的展开和折叠提供足够的扭矩。同时，多个转动件共用一个转轴，耦合后的结构件占用空间极小，有利于转动机构的小型化。
以上所述，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，任何在本申请揭露的技术范围内的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (16)

  1. 一种转动机构，其特征在于，所述转动机构包括：
    转轴；
    第一结构件，所述第一结构件设置有第一滑槽；
    第二结构件，所述第二结构件设置有第二滑槽；
    第三结构件，所述第三结构件的第一端与所述转轴连接，所述第三结构件的第二端设置于所述第一滑槽；
    第四结构件，所述第四结构件的第一端与所述转轴连接，所述第四结构件的第二端设置于所述第二滑槽；
    当所述第一结构件和所述第二结构件围绕所述转轴转动时，所述第三结构件的第二端相对于所述第一滑槽滑动，所述第四结构件的第二端相对于所述第二滑槽滑动。
  2. 根据权利要求1所述的转动机构，其特征在于，所述转轴包括：第一转轴和第二转轴；
    所述第一转轴和所述第二转轴通过传动结构连接；
    所述第三结构件与所述传动结构的第一端连接；
    所述第四结构件和与所述传动结构的第二端连接；
    当所述第三结构件驱动所述传动结构的第一端绕第一转轴转动时，所述传动结构的第二端带动所述第四结构件围绕所述第二转轴转动；
    或，当所述第四结构件驱动传动结构的第二端绕第二转轴转动时，所述传动结构的第一端带动所述第三结构件围绕所述第一转轴转动。
  3. 根据权利要求2所述的转动机构，其特征在于，所述传动结构包括：套设在所述第一转轴上的第一齿轮，以及套设在所述第二转轴上的第二齿轮，所述第一齿轮和所述第二齿轮啮合。
  4. 根据权利要求1所述的转动机构，其特征在于，所述转动机构还包括：弹性部件，
    当所述第一结构件与所述第二结构件处于折叠状态或展开状态时，所述弹性部件的形变为第一形变；
    当所述第一结构件与所述第二结构件处于折叠和展开之间的状态时，所述弹性部件的形变为第二形变；
    所述第二形变的形变量大于所述第一形变的形变量。
  5. 根据权利要求4所述的转动机构，其特征在于，所述转轴包括：第一转轴和第二转轴，所述第一转轴和所述第二转轴连接；
    所述弹性部件至少包括：设置于所述第三结构件上的第一弹性部件；
    所述第一转轴上套设有第一凸轮；
    所述第三结构件与所述第一凸轮表面接触；
    当所述第一结构件转动时，所述第一凸轮相对于所述第一转轴静止；所述第三结构件沿着所述第一凸轮的表面且绕所述第一转轴转动；
    所述第一凸轮具有第一表面、第二表面和第三表面；
    当所述第三结构件与所述第一表面或所述第二表面接触时，所述第一弹性部件的 形变为所述第一形变；
    当所述第三结构件与所述第三表面接触时，所述第一弹性部件的形变为所述第二形变。
  6. 根据权利要求5所述的转动机构，其特征在于，所述第一弹性部件为弹簧或弹垫。
  7. 根据权利要求4所述的转动机构，其特征在于，所述转轴包括：第一转轴和第二转轴，所述第一转轴和所述第二转轴连接；
    所述弹性部件至少包括：套设在所述第一转轴上的第一C型卡；
    当所述第一结构件转动时，所述第一转轴相对所述第一C型卡转动；
    所述第一C型卡内侧具有第一平面、第一曲面，所述第一转轴包括与所述第一平面匹配的第三平面和第五平面，以及与所述第一曲面匹配的第二曲面；
    当所述第三平面或所述第五平面与所述第一平面接触时，所述第二曲面和所述第一曲面接触，所述第一C型卡的形变为所述第一形变；
    当所述第二曲面和所述第一平面接触时，所述第一C型卡的形变为所述第二形变。
  8. 根据权利要求4所述的转动机构，其特征在于，所述转轴包括：第三转轴；所述弹性部件至少包括：套设在所述第三转轴上的第二弹性部件；
    所述第三转轴上还套设有：凸轮和凹轮，
    当所述第一结构件转动时，所述第三结构件和所述凹轮相对所述第三转轴转动，所述凸轮相对所述第三转轴滑动；
    所述凸轮上设有凸部，所述凹轮上设有平面部，以及与所述凸部匹配的至少一个凹部；
    当所述凸轮的凸部与所述至少一个凹部匹配时，所述第二弹性部件的形变为所述第一形变；
    当所述凸轮的凸部与所述平面部接触时，所述第二弹性部件的形变为所述第二形变。
  9. 根据权利要求8所述的转动机构，其特征在于，所述第二弹性部件为碟簧或弹垫。
  10. 根据权利要求1所述的转动机构，其特征在于，所述转动机构还包括：弹性部件，所述转轴包括：第一转轴和第二转轴；
    所述第一转轴和所述第二转轴通过传动结构连接；
    所述第三结构件与所述传动结构的第一端连接；
    所述第四结构件和与所述传动结构的第二端连接；
    当所述第三结构件驱动所述传动结构的第一端绕第一转轴转动时，所述传动结构的第二端带动所述第四结构件围绕所述第二转轴转动；
    或，当所述第四结构件驱动传动结构的第二端绕第二转轴转动时，所述传动结构的第一端带动所述第三结构件围绕所述第一转轴转动；
    当所述第三结构件与所述第四结构件处于折叠状态或展开状态时，所述弹性部件的形变为第一形变；
    当所述第三结构件与所述第四结构件处于折叠状态和展开状态之间时，所述弹性 部件的形变为第二形变；所述第二形变的形变量大于所述第一形变的形变量。
  11. 根据权利要求10所述的转动机构，其特征在于，所述转动机构还包括：第五结构件；
    所述第五结构件设置于所述第一滑槽；
    所述传动结构包括：套设在所述第一转轴上的第一齿轮，以及套设在所述第二转轴上的第二齿轮；
    所述第一齿轮和所述第二齿轮啮合；
    所述弹性部件包括：套设在所述第五结构件上的第一弹性部件；
    所述第一转轴上套设有第一凸轮；
    所述第五结构件与所述第一凸轮表面接触；
    当所述第一结构件转动时，所述第一凸轮相对于所述第一转轴静止；所述第五结构件沿着所述第一凸轮的表面且绕所述第一转轴转动。
  12. 根据权利要求2-3、5-7、10-11任一项所述的转动机构，其特征在于，所述转轴还包括：导向内轴和导向外轴，所述导向外轴罩设于所述导向内轴；
    其中，所述导向内轴的长度小于所述导向外轴长度，所述导向外轴长度方向的第一端相对所述导向内轴长度方向的第一端沿长度方向延伸，所述第一转轴和所述第二转轴设置于所述导向内轴长度方向的第一端与所述导向外轴长度方向的第一端之间。
  13. 根据权利要求12所述的转动机构，其特征在于，所述导向内轴的外侧面和所述导向外轴的内侧面围设成滑道；
    所述第一结构件上设有第一旋转件，所述第二结构件上设有第二旋转件，所述第一旋转件和所述第二旋转件均位于所述滑道内；
    当所述第一结构件和所述第二结构件围绕所述转轴转动时，所述第一旋转件和所述第二旋转件在所述滑道内绕所述导向内轴转动。
  14. 根据权利要求1-13任一项所述的转动机构，其特征在于，所述第一结构件包括：第一叶片和第三叶片，所述第一叶片上设有第一凹槽，所述第三叶片上设有与所述第一凹槽匹配的第一滑块；
    所述第二结构件包括：第二叶片和第四叶片，所述第二叶片上设有第二凹槽，所述第四叶片上设有与所述第二凹槽匹配的第二滑块；
    当所述第一结构件和所述第二结构件围绕所述转轴转动时，所述第一滑块在所述第一凹槽内滑动，所述第二滑块在所述第二凹槽内滑动。
  15. 根据权利要求1-14任一项所述的转动机构，其特征在于，所述第三结构件上设有第一导杆，所述第一滑槽内设有与所述第一导杆匹配的第一导轨；
    所述第四结构件上套设有第二支撑部，所述第二支撑部上设有第二导杆，所述第二滑槽内设有与所述第二导杆匹配的第二导轨；
    当所述第一结构件和所述第二结构件转动时，所述第一导杆沿所述第一导轨滑动，所述第二导杆沿所述第二导轨滑动。
  16. 一种折叠显示终端，其特征在于，包括：柔性屏，以及如权利要求1-15任一项所述的转动机构，所述柔性屏的第一区域与所述第一结构件相连接；
    所述柔性显示屏的第二区域与所述第二结构件相连接；
    所述柔性显示屏的第三区域与所述转轴相连接；
    其中，所述第三区域位于所述第一区域和所述第二区域之间。
PCT/CN2020/103366 2019-07-30 2020-07-21 转动机构、折叠显示终端 WO2021017959A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20847563.2A EP3992751A4 (en) 2019-07-30 2020-07-21 ROTARY MECHANISM AND TERMINAL WITH FOLDING DISPLAY
US17/631,271 US20220261040A1 (en) 2019-07-30 2020-07-21 Rotating Mechanism And Foldable Display Terminal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910696889.4 2019-07-30
CN201910696889.4A CN110442196A (zh) 2019-07-30 2019-07-30 转动机构、折叠显示终端

Publications (1)

Publication Number Publication Date
WO2021017959A1 true WO2021017959A1 (zh) 2021-02-04

Family

ID=68432421

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/103366 WO2021017959A1 (zh) 2019-07-30 2020-07-21 转动机构、折叠显示终端

Country Status (4)

Country Link
US (1) US20220261040A1 (zh)
EP (1) EP3992751A4 (zh)
CN (1) CN110442196A (zh)
WO (1) WO2021017959A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113888960A (zh) * 2021-03-29 2022-01-04 荣耀终端有限公司 旋转组件、折叠机构和折叠终端

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020029062A1 (zh) * 2018-08-07 2020-02-13 华为技术有限公司 转轴连接机构和可折叠的设备
CN110442196A (zh) * 2019-07-30 2019-11-12 华为技术有限公司 转动机构、折叠显示终端
CN111045485B (zh) * 2019-12-13 2021-05-04 Oppo广东移动通信有限公司 电子设备
CN113012569A (zh) * 2019-12-19 2021-06-22 中兴通讯股份有限公司 一种折叠屏及折叠显示终端
CN110992833B (zh) * 2019-12-19 2020-10-23 倪承明 一种用于柔性屏移动终端的转轴式折叠组件
TWI764646B (zh) * 2020-03-27 2022-05-11 仁寶電腦工業股份有限公司 電子裝置及樞軸模組
CN111508375A (zh) 2020-05-28 2020-08-07 武汉华星光电半导体显示技术有限公司 可折叠显示装置
CN113938542B (zh) * 2020-06-29 2022-10-18 比亚迪股份有限公司 柔性屏用折叠装置及移动终端
CN114079678B (zh) * 2020-08-13 2023-01-06 比亚迪股份有限公司 一种折叠装置和柔性屏移动终端
KR20220028364A (ko) 2020-08-28 2022-03-08 삼성전자주식회사 플렉서블 디스플레이를 포함하는 전자 장치
CN112901643B (zh) * 2020-09-14 2022-05-24 华为技术有限公司 折叠装置及电子设备
CN112540652B (zh) * 2020-12-21 2024-03-22 维沃移动通信有限公司 电子设备
CN112652248B (zh) * 2021-01-06 2022-07-12 武汉华星光电半导体显示技术有限公司 一种折叠显示面板及折叠显示装置
CN115135049B (zh) * 2021-03-26 2023-09-12 华为技术有限公司 一种折叠机构和电子设备
CN215890763U (zh) * 2021-07-05 2022-02-22 武汉华星光电半导体显示技术有限公司 铰链、柔性显示面板及电子装置
CN113487974B (zh) * 2021-07-30 2022-07-12 武汉华星光电技术有限公司 折叠显示装置
CN114110008B (zh) * 2021-11-10 2022-08-19 深圳创维－Rgb电子有限公司 形态转换机构、显示装置
CN114999330B (zh) * 2022-07-08 2023-11-28 武汉华星光电半导体显示技术有限公司 一种折叠机构及折叠显示装置
CN114893494B (zh) * 2022-07-12 2022-11-11 荣耀终端有限公司 阻尼机构及终端

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103576775A (zh) * 2012-08-07 2014-02-12 创造者科技有限公司 显示器系统
CN106205385A (zh) * 2014-12-31 2016-12-07 乐金显示有限公司 可折叠显示装置
CN107831830A (zh) * 2015-12-29 2018-03-23 广东欧珀移动通信有限公司 一种折叠终端
US20180292860A1 (en) * 2017-04-05 2018-10-11 Microsoft Technology Licensing, Llc Hinged device
US20190132975A1 (en) * 2017-10-31 2019-05-02 Lg Electronics Inc. Double hinge module and mobile terminal
CN110442196A (zh) * 2019-07-30 2019-11-12 华为技术有限公司 转动机构、折叠显示终端
CN211123830U (zh) * 2019-07-30 2020-07-28 华为技术有限公司 转动机构、折叠显示终端

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005207465A (ja) * 2004-01-21 2005-08-04 Sugatsune Ind Co Ltd ニ軸ヒンジ装置
CN105812509B (zh) * 2016-03-31 2018-06-29 广东欧珀移动通信有限公司 折叠机构及移动终端
US10268237B2 (en) * 2017-01-26 2019-04-23 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Housing assembly and electronic device
KR101912751B1 (ko) * 2017-02-13 2018-10-31 주식회사 다이아벨 밴딩 힌지 장치 및 이를 구비하는 전자기기
CN107135288B (zh) * 2017-04-25 2020-03-24 珠海市魅族科技有限公司 具有柔性屏的折叠式终端
TWM559431U (zh) * 2017-05-19 2018-05-01 Fositek Corp 軟性顯示設備及支撐裝置
CN208581409U (zh) * 2018-03-29 2019-03-05 中兴通讯股份有限公司 连接装置和电子设备
TWI673545B (zh) * 2018-06-21 2019-10-01 兆利科技工業股份有限公司 折疊式裝置的轉軸模組
CN208705766U (zh) * 2018-08-14 2019-04-05 中兴通讯股份有限公司 智能终端
CN110005694B (zh) * 2019-03-26 2020-05-19 惠州Tcl移动通信有限公司 铰链结构、折叠机构以及移动终端

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103576775A (zh) * 2012-08-07 2014-02-12 创造者科技有限公司 显示器系统
CN106205385A (zh) * 2014-12-31 2016-12-07 乐金显示有限公司 可折叠显示装置
CN107831830A (zh) * 2015-12-29 2018-03-23 广东欧珀移动通信有限公司 一种折叠终端
US20180292860A1 (en) * 2017-04-05 2018-10-11 Microsoft Technology Licensing, Llc Hinged device
US20190132975A1 (en) * 2017-10-31 2019-05-02 Lg Electronics Inc. Double hinge module and mobile terminal
CN110442196A (zh) * 2019-07-30 2019-11-12 华为技术有限公司 转动机构、折叠显示终端
CN211123830U (zh) * 2019-07-30 2020-07-28 华为技术有限公司 转动机构、折叠显示终端

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3992751A4

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113888960A (zh) * 2021-03-29 2022-01-04 荣耀终端有限公司 旋转组件、折叠机构和折叠终端
CN113888960B (zh) * 2021-03-29 2022-10-14 荣耀终端有限公司 旋转组件、折叠机构和折叠终端

Also Published As

Publication number Publication date
US20220261040A1 (en) 2022-08-18
CN110442196A (zh) 2019-11-12
EP3992751A1 (en) 2022-05-04
EP3992751A4 (en) 2023-04-12

Similar Documents

Publication Publication Date Title
WO2021017959A1 (zh) 转动机构、折叠显示终端
WO2021259340A1 (zh) 一种折叠装置及电子设备
WO2020258887A1 (zh) 柔性屏的支撑装置、可折叠的显示模组及显示设备
WO2021209001A1 (zh) 折叠装置及电子设备
WO2022152135A9 (zh) 折叠组件及可折叠电子设备
US11812568B2 (en) Foldable display device
EP4207142A1 (en) Foldable apparatus and electronic device
WO2021209008A1 (zh) 折叠装置及电子设备
WO2021017252A1 (zh) 显示装置
JP7466770B2 (ja) 電子機器
CN110005694A (zh) 铰链结构、折叠机构以及移动终端
CN211123830U (zh) 转动机构、折叠显示终端
CN114046313B (zh) 铰链、显示面板及电子装置
WO2022218147A1 (zh) 一种折叠装置及电子设备
WO2022262781A1 (zh) 折叠装置及电子设备
CN114220354B (zh) 柔性显示装置及移动终端
WO2022268126A1 (zh) 电子设备、折叠组件及折叠装置
CN114373383A (zh) 可折叠显示设备
WO2022206644A1 (zh) 折叠电子设备
WO2022001345A1 (zh) 电子设备
CN114593134B (zh) 折叠装置及具有其的电子设备
TWM632163U (zh) 可撓性顯示面板承架機構伸縮型樞軸裝置
JP2024505347A (ja) 折り畳み機構及び折り畳み式電子機器
CN116820191B (zh) 铰链机构及折叠屏设备
CN114120812A (zh) 转动机构和折叠显示终端

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20847563

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2020847563

Country of ref document: EP

Effective date: 20220131