WO2024169288A1 - 转轴结构及折叠式终端 - Google Patents

转轴结构及折叠式终端 Download PDF

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Publication number
WO2024169288A1
WO2024169288A1 PCT/CN2023/132197 CN2023132197W WO2024169288A1 WO 2024169288 A1 WO2024169288 A1 WO 2024169288A1 CN 2023132197 W CN2023132197 W CN 2023132197W WO 2024169288 A1 WO2024169288 A1 WO 2024169288A1
Authority
WO
WIPO (PCT)
Prior art keywords
swing arm
rotating
damping
lateral
shaft cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/132197
Other languages
English (en)
French (fr)
Inventor
苏帅
陈瑞豪
董长富
董绍洪
黄健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honor Device Co Ltd
Original Assignee
Honor Device Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honor Device Co Ltd filed Critical Honor Device Co Ltd
Priority to EP23922404.1A priority Critical patent/EP4561036A4/en
Priority to CN202380081570.5A priority patent/CN120266465A/zh
Publication of WO2024169288A1 publication Critical patent/WO2024169288A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681—Details related solely to hinges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • 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
    • 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

Definitions

  • the present application relates to the technical field of electronic equipment, and in particular to a hinge structure and a foldable terminal.
  • foldable terminals such as foldable mobile phones
  • foldable terminals When unfolded, foldable terminals can obtain a larger display area to improve the visual effect, and when folded, they can obtain a smaller volume, which is convenient for users to carry. Therefore, they are favored by more and more users.
  • the structure for realizing the unfolding or folding of the foldable terminal is a rotating shaft structure, which includes a damping mechanism, a synchronization mechanism, etc.
  • the damping mechanism provides a damping force to realize the opening and closing feel.
  • the existing damping mechanism has problems such as small damping force and poor opening and closing feel.
  • the present application provides a hinge structure and a foldable terminal, which can improve the damping force of the hinge structure, realize the opening and closing feel, and have a simple structure and low cost.
  • an embodiment of the present application provides a shaft structure, which is applied to an outward-folding foldable terminal.
  • the outward-folding foldable terminal includes a first body and a second body, and a shaft structure connecting the first body and the second body, wherein the shaft structure includes: a shaft cover; two connecting members, located on both sides of the shaft cover, and used to be connected to the first body and the second body respectively; a rotating mechanism, which is rotatably connected to the shaft cover and is slidably and rotatably connected to the connecting member, and is used to control the movement of the connecting member; a synchronization mechanism, which is rotatably connected to the shaft cover and is slidably and rotatably connected to the connecting member, and is used to synchronize the rotation of the two connecting members; multiple damping mechanisms, the multiple damping mechanisms include a convex-concave wheel damping mechanism and/or a compliant damping mechanism; the convex-concave wheel damping mechanism includes a pin, a
  • the damping swing arm includes a rotating cam which is sleeved on the pin shaft and is adjacent to and in contact with the cam, and a swinging member located on one side of the rotating cam.
  • the swinging members of the two damping swing arms are respectively connected to the two connecting members for sliding and rotation.
  • the first spring is compressed and generates an axial extrusion force, which acts between the cam and the rotating cam to generate a damping force.
  • the flexible damping mechanism includes two flexible members, and the flexible members include a flexible swing arm and a flexible unit. The flexible units of the two flexible members are respectively fixed on the two connecting members.
  • the flexible unit includes a connecting rod and a flexible beam.
  • the flexible swing arm is fixedly connected to the connecting rod. When the other end of the flexible swing arm slides and rotates with the connecting member, the connecting rod is driven to move, and the flexible beam is compressed to generate a damping force.
  • the multiple damping mechanisms in the outward folding foldable terminal include a convex-concave wheel damping mechanism and/or a compliant damping mechanism, which can increase the damping force of the damping mechanism, and the damping mechanism can not only provide a flattening force, but also provide a closing force, adjust the opening and closing feel of the rotating shaft structure, and facilitate user experience.
  • the multiple damping mechanisms are multiple convex-concave wheel damping mechanisms, the problem of high cam surface pressure and severe wear when there is a single damping mechanism can be avoided.
  • the multiple damping mechanisms include a compliant damping mechanism, it is helpful to maintain the hovering, unfolding, and closing states of the rotating shaft structure.
  • the damping mechanism has a simple structure and low cost.
  • the multiple damping mechanisms also include a lateral damping mechanism;
  • the lateral damping mechanism includes two lateral members, the lateral members include a lateral swing arm and a lateral rotating part, the lateral rotating part is rotatably connected to the shaft cover, and the lateral swing arms of the two lateral members are respectively slidably connected to the two connecting members;
  • a support member and a roller rotatably connected to the support member are provided in the lateral swing arm, and at least one second spring is sleeved on the support member, and opposite ends of the second spring are respectively fixedly connected to the support member and the roller; when the angle of the plane where the two connecting members are located is within a preset angle range, the roller contacts the side wall of the shaft cover, the shaft cover squeezes the roller, and the second spring is compressed to generate a damping force.
  • the setting of the lateral damping mechanism improves the unfolding retention force of the shaft structure through the force between the roller and the shaft cover when the shaft structure is in the unfolded state, which is beneficial to the user experience, and further improves the opening and closing feel together with the convex and concave wheel damping mechanism and/or the flexible damping mechanism.
  • the preset angle range may be, for example, 90°-180°, 120°-180°, or 150°-180°.
  • the rotating mechanism includes a main swing arm group; the main swing arm group includes two main swing arms respectively arranged on both sides of the shaft cover; the main swing arm includes a first main swing part and a second main swing part which are fixedly connected, the connecting part is provided with a first connecting groove which is adapted to the second main swing part, the main swing arm is rotatably connected to the connecting part through the second main swing part, the shaft cover is provided with a first shaft cover groove which is adapted to the first main swing part, the main swing arm is rotatably connected to the shaft cover through the first main swing part, the position of the shaft cover remains unchanged, the first main swing parts of the two main swing arms in the main swing arm group rotate relative to the shaft cover, so as to drive the two connecting parts to rotate through the second main swing parts of the two main swing arms in the main swing arm group.
  • the main swing arm provided in the present application has a simple structure, reduces the difficulty of preparation, and has low cost.
  • the cross-sectional shapes of the first main swing member and the second main swing member are both arc-shaped, thereby improving the bending reliability of the entire machine.
  • the rotating mechanism also includes a secondary swing arm group;
  • the secondary swing arm group includes two secondary swing arms arranged on both sides of the shaft cover, the secondary swing arm includes a swing arm rotating part and a sliding part;
  • the swing arm rotating part is fixed to the side wall of the sliding part, and a first protrusion is provided on the sliding part, and at least one swing arm slide groove is formed between the first protrusion and the sliding part;
  • a second connecting slide groove adapted to the sliding part is provided on the connecting part, and a first convex strip adapted to the swing arm slide groove is formed on the side wall of the second connecting slide groove
  • the secondary swing arm is slidingly connected to the connecting part through the swing arm slide groove
  • a second shaft cover slide groove adapted to the swing arm rotating part is provided on the shaft cover,
  • the secondary swing arm is rotatably connected to the shaft cover through the swing arm rotating part, the position of the shaft cover remains unchanged, and the swing arm rotating parts of the two secondary swing arms in the secondary swing arm group rotate relative to the shaft cover to
  • the auxiliary swing arm provided in the present application has a simple structure, reduces the difficulty of preparation, and has low cost.
  • the synchronization mechanism includes two synchronization parts, and the synchronization parts include a synchronization swing arm and gears.
  • the gears of the two synchronization parts are meshed with each other, and the synchronization swing arms of the two synchronization parts are arranged on both sides of the two gears that are meshed with each other;
  • the gears are rotatably connected to the shaft cover through the gear shaft, and a first boss is provided on the two side walls of the synchronization swing arm away from the gear;
  • a third connecting groove adapted to the synchronization swing arm is provided on the connecting part, and the side wall of the third connecting groove is partially recessed to form a first groove adapted to the first boss, and the first boss slides and rotates in the first groove, so that the synchronization mechanism is slidably and rotatably connected to the connecting part.
  • the synchronization mechanism provided in the present application has a simple structure, reduces the difficulty of preparation, has a low cost, and ensures the reliability of synchronization when the whole machine is bent.
  • the foldable terminal also includes a flexible screen, which is located on one side of the first body, the hinge structure and the second body; the hinge structure also includes a supporting door panel, which is fixedly connected to the rotating mechanism and rotates with the rotation of the rotating mechanism, and the supporting door panel is used to support the flexible screen.
  • connection method of the supporting door panel is simple, and the flexible screen is supported by the supporting door panel to reduce screen stress and prevent the bending area of the flexible screen from collapsing or falling and being damaged.
  • the rotating shaft structure also includes a supporting door panel
  • the main swing arm includes a first main swing member and a second main swing member
  • the first main swing member and the second main swing member are both provided with a fixing column
  • the main swing arm is connected to the supporting door panel through the fixing column. That is, the connection of the supporting door panel can be achieved through the fixing column, the fixing method is simple, and there is no need to change other structures, which is conducive to the arrangement of other structures.
  • the material of the supporting door panel includes a super-strong polymer material, and the supporting door panel is integrally formed.
  • This arrangement improves the processing reliability and economy of the supporting door panel, and the formed supporting door panel is relatively flat, thereby improving the bearing capacity of the supporting door panel for the flexible screen and improving problems such as screen creases.
  • the pivot structure also includes a decorative door panel, which is fixedly connected to the rotating mechanism and rotates with the rotating mechanism.
  • the decorative door panel is used to shield the rotating mechanism, the synchronization mechanism and/or the damping mechanism to protect the rotating mechanism, the synchronization mechanism and/or the damping mechanism and prevent the rotating mechanism, the synchronization mechanism and/or the damping mechanism from interfering with other structures in the terminal.
  • the rotating shaft structure also includes a decorative door panel
  • the decorative door panel when the auxiliary swing arm includes a swing arm rotating member and a sliding member, the decorative door panel is fixedly connected to the side of the sliding member away from the first protrusion, so that the decorative door panel is fixedly connected to the auxiliary swing arm; the two opposite ends of the decorative door panel are partially bent, and a decorative slide groove is formed between the bent part of the decorative door panel and the unbent part of the decorative door panel, and second protrusions are provided at the opposite ends of the connecting member, and the second protrusions are located in the decorative slide groove, and the decorative door panel is slidably connected to the connecting member through the decorative slide groove. That is, the connection of the decorative door panel can be achieved through the auxiliary swing arm, the fixing method is simple, and there is no need to change other structures, which is conducive to the setting of other structures.
  • the above-mentioned pivot structure also includes a decorative door panel, the material of the decorative door panel includes a super-strong polymer material, and the decorative door panel is integrally formed.
  • This arrangement improves the processing reliability and economy of the decorative door panel, and the formed decorative door panel is relatively flat.
  • the shaft structure is arranged in a foldable terminal, it is convenient to arrange other structures in the terminal.
  • the number of pins, cams and first springs is two, and the number of damping swing arms is four; the two pins are arranged side by side along the first direction, and the pins extend along the second direction, the cam has two cam holes, the two cam holes are arranged side by side along the first direction, the cams are respectively sleeved on the two pins through the two cam holes, and there is a gap between the two cams, the two first springs are respectively sleeved on the two pins, and are respectively located in the gap between the two cams, wherein the rotating cams of the two damping swing arms are arranged adjacent to one of the cams, and along the second direction, are located at a position where the cam is away from the first cam.
  • the rotating cams of the other two damping swing arms are arranged closely to another cam, and along the second direction, are located on the side of the cam away from the first spring; second convex columns are arranged on the two side walls of the end of the swing member away from the rotating cam, and a fifth connecting groove adapted to the damping swing arm is opened on the connecting member, and the side wall of the fifth connecting groove is partially recessed to form a second groove adapted to the second convex column, and the second convex column slides and rotates in the second groove to make the damping mechanism slidably and rotatably connected to the connecting member; wherein the first direction is the direction from the first fuselage to the second fuselage, and the second direction is the axial direction of the rotating shaft structure.
  • the damping mechanism provided in the present application has a simple structure, reduces the difficulty of preparation, has a low cost, and provides a large damping force.
  • the first direction is the X-axis direction in the embodiment
  • the second direction is the Y-axis direction in the embodiment.
  • a connecting portion is provided between the two damping swing arms on the same pin, and the two ends of the connecting portion are respectively fixedly connected to the two damping swing arms, so as to ensure the synchronization of the two damping swing arms on the same pin and the reliability of the whole machine when it is bent.
  • the flexible swing arm includes a rotating shaft and a sliding portion located on one side of the rotating shaft, a limiting block is provided on the sliding portion, and a third boss is provided on both side walls of the sliding portion away from the rotating shaft;
  • the flexible beam is located on both sides of the connecting rod, and a limiting hole is provided on the connecting rod;
  • a rotating hole adapted to the rotating shaft is provided on the shaft cover, so that the flexible swing arm is rotatably connected to the shaft cover;
  • a fourth connecting slot is provided on the connecting piece, and the side wall of the fourth connecting slot is partially recessed to form a third groove adapted to the third boss, and the third boss slides and rotates in the third groove, so that the flexible swing arm is slidably and rotatably connected to the connecting piece;
  • the flexible beams located on both sides of the connecting rod are respectively fixed on the non-recessed side walls of the fourth connecting slot, and the limiting blocks of the flexible swing arm are clamped in the limiting holes of the connecting rod, so that the flexible swing
  • the damping mechanism provided in the present application has a simple structure, reduces the difficulty of preparation, has a low cost, and provides a large damping force.
  • a second convex strip is provided on both side walls of the lateral swing arm, a fifth connecting slot is provided on the connecting member, and a side wall of the fifth connecting slot is partially recessed to form a fourth groove adapted to the second convex strip, and the second convex strip slides in the fourth groove to enable the lateral swing arm to move in a direction opposite to the lateral swing arm.
  • the arm is slidably connected to the connecting piece; a third shaft cover slide groove adapted to the lateral rotating part is opened on the shaft cover, and the lateral piece is rotatably connected to the shaft cover through the lateral rotating part; there are two lateral rotating parts, and the two lateral rotating parts are arranged at intervals; the lateral swing arm is an annular structure with an opening, and the two lateral rotating parts are fixedly connected to the lateral swing arms respectively, and are located on both sides of the opening; the support member is located in the annular structure, and the roller is located in the gap between the two lateral rotating parts.
  • the damping mechanism provided in the present application has a simple structure, reduces the difficulty of preparation, has a low cost, and provides a large damping force.
  • the number of damping mechanisms is three.
  • the cost will not be increased due to too many damping mechanisms, nor will the damping force be reduced due to too few damping mechanisms, thereby affecting the opening and closing feel.
  • the three damping mechanisms are all convex-concave wheel damping mechanisms; or, the three damping mechanisms are all compliant damping mechanisms; or, at least one of the three damping mechanisms is a convex-concave wheel damping mechanism, and at least one is a compliant damping mechanism.
  • the combination of the three damping mechanisms is not limited to this.
  • the number of damping mechanisms is three; at least one of the three damping mechanisms is a convex-concave wheel damping mechanism, and at least one is a lateral damping mechanism; or at least one of the three damping mechanisms is a compliant damping mechanism, and at least one is a lateral damping mechanism.
  • the combination of the three damping mechanisms is not limited to this.
  • an embodiment of the present application provides a foldable terminal, which is an outward-folding foldable terminal.
  • the outward-folding foldable terminal includes the rotating shaft structure of the first aspect and has the same beneficial effects as the first aspect.
  • FIG1 is a schematic diagram of the structure of a foldable terminal provided in an embodiment of the present application.
  • FIG2 is a schematic diagram of a foldable mobile phone provided in an embodiment of the present application when folded;
  • FIG3 is a front structural schematic diagram of a rotating shaft structure provided in an embodiment of the present application.
  • FIG4 is a schematic diagram of the back structure of a rotating shaft structure provided in an embodiment of the present application.
  • FIG5 is an exploded view of the rotating shaft structure shown in FIG3 ;
  • FIG6 is an exploded view of the rotating shaft structure shown in FIG4 ;
  • FIG7 is a schematic structural diagram of a main swing arm provided in an embodiment of the present application.
  • FIG8 is a schematic diagram of a partial structure of a connector provided in an embodiment of the present application.
  • FIG9 is a positional relationship diagram of the main swing arm, the connecting member, and the shaft cover provided in an embodiment of the present application;
  • FIG10 is a schematic structural diagram of a secondary swing arm assembly provided in an embodiment of the present application.
  • FIG11 is a schematic diagram of a partial structure of a connecting member provided in an embodiment of the present application.
  • FIG12 is a schematic structural diagram of a synchronization mechanism provided in an embodiment of the present application.
  • FIG13 is a schematic diagram of a partial structure of a connecting member provided in an embodiment of the present application.
  • FIG14 is a top view of a damping mechanism provided in an embodiment of the present application.
  • FIG15 is a three-dimensional diagram of a damping mechanism provided in an embodiment of the present application.
  • FIG16 is a schematic diagram of a partial structure of a connecting member provided in an embodiment of the present application.
  • FIG17 is an enlarged view of the QQ area in FIG3 ;
  • Fig. 18 is a cross-sectional view of Fig. 17 along the OO' direction;
  • FIG19 is a schematic diagram of a partial structure of a rotating shaft structure provided in an embodiment of the present application.
  • FIG20 is a diagram showing the position relationship of the supporting door panel when the foldable terminal is in a folded state according to an embodiment of the present application
  • FIG21 is a schematic diagram of a partial structure of a rotating shaft structure provided in an embodiment of the present application.
  • Fig. 22 is a cross-sectional view of Fig. 21 along the PP' direction;
  • FIG23 is a schematic diagram of a partial structure of a connector provided in an embodiment of the present application.
  • FIG24 is a schematic diagram of a partial structure of a decorative door panel provided in an embodiment of the present application.
  • FIG25 is a front structural schematic diagram of another rotating shaft structure provided in an embodiment of the present application.
  • FIG26 is a schematic diagram of the back structure of another rotating shaft structure provided in an embodiment of the present application.
  • FIG27 is an exploded view of the rotating shaft structure shown in FIG25;
  • FIG28 is an exploded view of the rotating shaft structure shown in FIG26;
  • FIG29 is an enlarged view of the WW region in FIG25 ;
  • FIG30 is an enlarged view of the RR region in FIG27;
  • FIG31 is a cross-sectional view of FIG29 along the SS' direction
  • FIG32 is a front structural schematic diagram of another rotating shaft structure provided in an embodiment of the present application.
  • FIG33 is a schematic diagram of the back structure of another rotating shaft structure provided in an embodiment of the present application.
  • FIG34 is an exploded view of the rotating shaft structure shown in FIG32;
  • FIG35 is an exploded view of the rotating shaft structure shown in FIG33;
  • FIG36 is a partial diagram of the positional relationship between the second damping mechanism and the shaft cover provided in an embodiment of the present application.
  • FIG37 is a cross-sectional view of FIG36 along the TT' direction
  • FIG38 is a top view of a second damping mechanism provided in an embodiment of the present application.
  • Figure 39 is a three-dimensional view of the second damping mechanism provided in an embodiment of the present application.
  • a and/or B in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist.
  • a and/or B can mean: A exists alone, A and B exist at the same time, and B exists alone.
  • first and second in the description and claims of the embodiments of the present application are used to distinguish different objects rather than to describe a specific order of objects.
  • a first target object and a second target object are used to distinguish different target objects rather than to describe a specific order of target objects.
  • words such as “exemplary” or “for example” are used to indicate examples, illustrations or descriptions. Any embodiment or design described as “exemplary” or “for example” in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as “exemplary” or “for example” is intended to present related concepts in a specific way.
  • multiple refers to two or more than two.
  • multiple processing units refer to two or more processing units; multiple systems refer to two or more systems.
  • the embodiment of the present application provides a foldable terminal.
  • the foldable terminal provided by the embodiment of the present application can be a mobile phone, a tablet computer, a personal digital assistant (PDA), a car computer, a television, a smart wearable device, a smart home device, etc.
  • PDA personal digital assistant
  • the embodiment of the present application does not specifically limit the specific form of the above foldable terminal.
  • the foldable terminal is a foldable mobile phone.
  • Fig. 1 is a schematic diagram of the structure of a foldable terminal provided in an embodiment of the present application.
  • a foldable mobile phone 100 includes a first display unit (also called a foldable screen or a flexible screen) 10 .
  • the first display unit 10 is, for example, a flexible display screen.
  • the first display unit 10 includes, for example, an organic light emitting diode (OLED) display screen.
  • OLED organic light emitting diode
  • the OLED display screen does not require a backlight module, and the substrate in the OLED display screen can be made of, for example, a flexible resin material, such as polyethylene terephthalate (PET), so that the OLED display screen has a bendable property.
  • PET polyethylene terephthalate
  • the types of display unit 10 include, but are not limited to, OLED display screens. Any display screen that can be bent is within the protection scope of the present application. For example, it may also be a liquid crystal display (LCD) screen, an LED display screen (for example, including a Micro-LED display screen, a Mini-LED display screen), etc.
  • LCD liquid crystal display
  • LED display screen for example, including a Micro-LED display screen, a Mini-LED display screen
  • the positional relationship of the various structures in the foldable mobile phone 100 is defined by the X-axis direction, the Y-axis direction and the Z-axis direction.
  • the X-axis direction is the width direction of the foldable mobile phone 100 after unfolding
  • the Y-axis direction is the length direction of the foldable mobile phone 100 after unfolding
  • the Z-axis direction is the thickness direction of the foldable mobile phone 100 after unfolding.
  • the foldable mobile phone 100 further includes a structural component.
  • the structural component includes a first body 20, a second body 30 and a hinge structure 40.
  • the first body 20 and the second body 30 are located on both sides of the hinge structure 40, and the hinge structure 40 is connected to the first body 20 and the second body 30 respectively.
  • the first body 20, the hinge structure 40, and the second body 30 can be used to carry the first display unit 10.
  • the first body 20 and the second body 30 can be rotated around the axis S0 (parallel to the Y-axis direction) of the hinge structure 40 respectively to realize the folding or unfolding state of the first display unit 10, that is, to realize the folding or unfolding state of the foldable mobile phone 100.
  • the structural component may include multiple hinge structures 40 and multiple fuselages.
  • two hinge structures 40 and three fuselages may be included, and two adjacent fuselages are connected by a hinge structure 40, so that the foldable mobile phone 100 has two folding positions.
  • the structural component includes at least one hinge structure 40 and at least two fuselages, and two adjacent fuselages are connected by a hinge structure 40.
  • the embodiments of the present application are all described by taking the structural component including a hinge structure 40 and two fuselages (i.e., the first fuselage 20 and the second fuselage 30) as an example.
  • FIG1 is a schematic diagram of a foldable mobile phone after unfolding.
  • FIG2 is a schematic diagram of a foldable mobile phone when folded.
  • the foldable mobile phone 100 when the foldable mobile phone 100 is folded, it can be folded away from the light emitting direction of the first display unit 10 (indicated by the arrow in FIG2), that is, the direction in which the first body section 20 and the second body section 30 rotate around the rotating shaft structure 40 is opposite to the light emitting direction of the flexible screen 10, that is, when the foldable mobile phone 100 is in a folded state, the first display unit 10 is exposed to the outside.
  • the foldable mobile phone 100 can also be called an outward-folding foldable mobile phone.
  • the first body 20 includes a first housing 21 and a first middle frame 22 .
  • the second body 30 includes a second housing 31 and a second middle frame 32 .
  • the first housing 21 can be the back cover (also called the battery cover) of the foldable mobile phone 100; it can also be a display unit for display, which is not limited in the embodiments of the present application.
  • the second housing 31 can be the back cover (also called the battery cover) of the foldable mobile phone; it can also be a display unit for display, which is not limited in the embodiments of the present application.
  • the embodiments of the present application are described by taking the first housing 21 as the back cover and the second housing 31 as the display unit (also called the second display unit or the display screen, to distinguish the first display unit 10 mentioned above) as an example.
  • the second display unit 31 includes, for example, LCD display screen, OLED display screen, LED display screen and other types of display screens.
  • the first middle frame 22 includes a first appearance member 221 and a first support member (not shown in FIG. 1 ) located between the first display unit 10 and the back cover 21.
  • the second middle frame 32 includes a second appearance member 321 and a second support member (not shown in FIG. 1 ) located between the first display unit 10 and the second housing 31.
  • the first display unit 10, the back cover 21, the first appearance component 221, the second display unit 31 and the second appearance component 321 form a housing.
  • the housing cavity is provided with a printed circuit board, a flexible circuit board, a functional device and other structures ( Figures 1 and 2 is not shown), wherein the functional components include, for example, a display driver module, a camera, and a battery, etc.
  • the structure in the accommodating cavity is supported by the first support member of the first middle frame 22 and the second support member of the second middle frame 32 .
  • FIG. 3 is a schematic diagram of the front structure of a rotating shaft structure provided in an embodiment of the present application
  • FIG. 4 is a schematic diagram of the back structure of a rotating shaft structure provided in an embodiment of the present application
  • FIG. 5 is an exploded view of the rotating shaft structure shown in FIG. 3
  • FIG. 6 is an exploded view of the rotating shaft structure shown in FIG. 4.
  • FIG. 3 is a schematic diagram of the front structure of a rotating shaft structure provided in an embodiment of the present application
  • FIG. 4 is a schematic diagram of the back structure of a rotating shaft structure provided in an embodiment of the present application
  • FIG. 5 is an exploded view of the rotating shaft structure shown in FIG. 3
  • FIG. 6 is an exploded view of the rotating shaft structure shown in FIG. 4.
  • FIG. 3 is a schematic diagram of the front structure of a rotating shaft structure provided in an embodiment of the present application
  • FIG. 4 is a schematic diagram of the back structure of a rotating shaft structure provided in an embodiment of the present application
  • FIG. 5 is an
  • the rotating shaft structure 40 includes a shaft cover 41, a rotating mechanism 42, a synchronization mechanism 43, a damping mechanism 44, two supporting door panels 45 and two decorative door panels 46, wherein the two supporting door panels 45 are respectively a first supporting door panel 451 and a second supporting door panel 452, and the two decorative door panels 46 are respectively a first decorative door panel 461 and a second decorative door panel 462.
  • the first supporting door panel 451 and the second supporting door panel 452 are arranged on both sides of the shaft cover 41
  • the first decorative door panel 461 and the second decorative door panel 462 are arranged on both sides of the shaft cover 41.
  • FIG3 does not show the decorative door panel 46 (which will block the shaft cover 41, rotating mechanism 42, synchronizing mechanism 43, damping mechanism 44).
  • the hinge structure 40 further includes two connecting members 423 disposed on both sides of the shaft cover 41 along the X-axis direction.
  • the two connecting members 423 are respectively a first connecting member 4231 and a second connecting member 4232.
  • the first connecting member 4231 and the second connecting member 4232 are each provided with at least one connecting hole 4230.
  • the first connecting member 4231 is fixedly connected to the first fuselage 20 through the connecting hole 4230 thereon.
  • the first connecting member 4231 is fixedly connected to the first supporting member of the first middle frame 22 through the connecting hole 4230 thereon.
  • the second connecting member 4232 is fixedly connected to the second body 30 through the connecting hole 4230 thereon, for example, the second connecting member 4232 is fixedly connected to the first support member of the second middle frame 32 through the connecting hole 4230 thereon, to achieve a fixed connection with the second body 30, that is, the hinge structure 40 is connected to the first body 20 and the second body 30 through two connecting members 423, so as to realize the folding or unfolding of the first body 20 and the second body 30 through the hinge structure 40.
  • Figure 7 is a schematic diagram of the structure of a main swing arm provided in an embodiment of the present application
  • Figure 8 is a schematic diagram of the partial structure of a connecting member provided in an embodiment of the present application
  • Figure 9 is a schematic diagram of the structure of the main swing arm, the connecting member and the shaft cover. Position relationship diagram.
  • the main swing arm 421 includes a first main swing member 4211 and a second main swing member 4212 that are fixedly connected.
  • the cross-sectional shapes of the first main swing member 4211 and the second main swing member 4212 are, for example, arc-shaped or approximately arc-shaped, that is, the projections of the first main swing member 4211 and the second main swing member 4212 on the plane formed by the X-axis and the Z-axis are both arc-shaped or approximately arc-shaped.
  • a first connecting groove 4233 adapted to the second main swing member 4212 is provided on the connecting member 423, and at least a portion of the second main swing member 4212 is located in the first connecting groove 4233, so as to be rotatably connected to the connecting member 423 through the first connecting groove 4233.
  • the shaft cover 41 is provided with a first shaft cover slot 411 adapted to the first main pendulum component 4211.
  • At least a portion of the first main pendulum component 4211 is located in the first shaft cover slot 411 so as to be rotatably connected to the shaft cover 41 through the first shaft cover slot 411.
  • the connecting member 423 can rotate relative to the shaft cover 41, thereby realizing the opening and closing of the first body 20 and the second body 30.
  • the projection on the plane formed by the X-axis and the Z-axis refers to the plane formed by the X-axis and the Y-axis when the foldable mobile phone 100 is in the unfolded state.
  • the following examples are the same and will not be repeated here.
  • FIG. 10 is a schematic diagram of the structure of a secondary swing arm assembly provided in an embodiment of the present application.
  • the secondary swing arm 422 includes a swing arm rotating member 4221 and a sliding member 4222 integrally formed with the swing arm rotating member 4221.
  • the cross-sectional shape of the swing arm rotating member 4221 is, for example, arc-shaped or approximately arc-shaped, that is, the projection of the swing arm rotating member 4221 on the plane formed by the X-axis and the Z-axis is arc-shaped or approximately arc-shaped.
  • the sliding member 4222 is, for example, in the shape of a flat plate.
  • the sliding member 4222 includes a first sliding surface 42221 and a second sliding surface 42222 that are arranged opposite to each other along the Z-axis direction, and also includes a side sliding surface 42223 connecting the first sliding surface 42221 and the second sliding surface 42222.
  • the swing arm rotating member 4221 is fixed to the side sliding surface 42223 to achieve a fixed connection with the sliding member 4222.
  • a first protrusion 4223 is arranged on the first surface 42221 of the sliding member 4222, and the first protrusion 4223 includes a first convex portion 42231 and a second convex portion 42232 arranged in sequence along the Z-axis direction, and the size of the first convex portion 42231 in the Y-axis direction is smaller than the size of the second convex portion 42232 in the Y-axis direction, so that the second convex portion 42232 and the first surface 42221 form at least one swing arm slot 4224, wherein Figure 10 is used as an example to illustrate that the second convex portion 42232 and the first surface 42221 form two swing arm slots 4224, and the two swing arm slots 4224 are opposite to each other along the Y-axis direction.
  • the embodiment of the present application is described by taking the swing arm rotating part 4221 and the sliding part 4222 as an example of integrally formed, but this does not constitute a limitation of the present application.
  • they can also be formed separately and fixed together by welding or bonding.
  • Fig. 11 is a schematic diagram of a partial structure of a connecting member provided in an embodiment of the present application.
  • a second connecting slot 4234 adapted to the sliding member 4222 is provided on the connecting member 423
  • a first convex strip 4235 adapted to the swing arm slot 4224 is formed on the side wall of the second connecting slot 4234, and the first convex strip 4235 slides in the swing arm slot 4224 to achieve sliding connection between the auxiliary swing arm 422 and the connecting member 423.
  • a second shaft cover slide groove (not shown in the figure) adapted to the swing arm rotating member 4221 is provided on the shaft cover 41. At least a portion of the swing arm rotating member 4221 is located in the second shaft cover slide groove so as to be rotatably connected to the shaft cover 41 through the second shaft cover slide groove. In this way, when the position of the shaft cover 41 remains unchanged, the connecting member 423 can rotate relative to the shaft cover 41, thereby realizing the opening and closing of the first fuselage 20 and the second fuselage 30.
  • the main swing arm 421 is rotatably connected to the connecting member 423 and the shaft cover 41 respectively
  • the auxiliary swing arm 422 is slidably connected to the connecting member 423 and is rotatably connected to the shaft cover 41
  • the main swing arm 421, the auxiliary swing arm 422, the connecting member 423 and the shaft cover 41 constitute a connecting rod mechanism, which controls the movement of the connecting member 423 to realize the rotation movement of the rotating shaft structure 40, thereby enabling the first body 20 and the second body 30 to be unfolded or folded, that is, the unfolding or folding of the foldable mobile phone 100 is realized.
  • Stack the connecting rod mechanism
  • the embodiment of the present application does not limit the number and location of the synchronization mechanism 43, and those skilled in the art can select the number and location of the synchronization mechanism 43 according to actual conditions.
  • the embodiment of the present application takes the example that there are two synchronization mechanisms 43, which are evenly distributed on the shaft cover 41.
  • FIG. 12 is a schematic diagram of the structure of a synchronization mechanism provided in an embodiment of the present application.
  • the synchronization mechanism 43 includes two synchronization members 431 arranged side by side along the X-axis direction, and the synchronization member 431 includes a synchronization swing arm 4311 and a gear 4312.
  • the gears 4312 of the two synchronization members 431 are meshed with each other, and the synchronization swing arms 4311 of the two synchronization members 431 along the X-axis direction are arranged on both sides of the two meshed gears 4312.
  • the gear 4312 includes a gear portion 43121 and two gear rotating portions (also referred to as gear shafts) 43122 located on both sides of the gear portion 43121 along the Y-axis direction, and the two gears 4312 are meshed with each other through the gear portion 43121.
  • the shaft cover 41 is provided with a rotating hole (not shown in the figure) adapted to the gear rotating portion 43122, and the gear rotating portions 43122 of the two gears 4312 are inserted into the rotating hole one by one to realize the rotation connection between the synchronization mechanism 43 and the shaft cover 41.
  • Two first protrusions 43111 arranged opposite to each other along the Y-axis direction are provided on the two side walls of the synchronization swing arm 4311 away from the end of the gear 4312, wherein the extension directions of the two first protrusions 43111 are opposite.
  • FIG. 13 is a schematic diagram of a partial structure of a connecting member provided in an embodiment of the present application.
  • a third connecting slot 4237 adapted to the synchronous swing arm 4311 is provided on the connecting member 423, and the side wall of the third connecting slot 4237 is partially recessed to form a first groove 4238 adapted to the two first convex pillars 43111, and the first convex pillars 43111 slide and rotate in the first groove 4238 to achieve the sliding and rotating connection between the synchronization mechanism 43 and the connecting member 423.
  • the groove 4238 has a slope to facilitate the sliding of the synchronous member 431.
  • the synchronization mechanism 43 cooperates with the sliding and rotating connection member 423 through the convex column 43111, and realizes the synchronous rotation of the first connection member 4231 and the second connection member 4232 through the engagement of the gear 4312, thereby ensuring the synchronization of the first connection member 4231 and the second connection member 4232, and further ensuring the synchronization of the first body 20 and the second body 30.
  • the damping mechanism 44 provides a damping force, and the foldable mobile phone 100 can achieve an opening and closing feel during the opening and closing process.
  • the embodiment of the present application does not limit the number of damping mechanisms 44, and those skilled in the art can set them according to actual conditions.
  • Figures 1 to 4 are described by taking the number of damping mechanisms 44 as three, and the three damping mechanisms 44 are evenly distributed on the shaft cover 41 as an example. When the number of damping mechanisms 44 is three, the cost will not be increased due to the excessive number of damping mechanisms 44, nor will the damping force be reduced due to the insufficient number of damping mechanisms 44, thereby affecting the opening and closing feel.
  • FIG. 14 is a top view of a damping mechanism provided in an embodiment of the present application
  • FIG. 15 is a stereoscopic view of a damping mechanism provided in an embodiment of the present application
  • the damping mechanism 44 includes two pins 441, two concave wheels 442, two first springs 443 and four damping swing arms 444, wherein, in order to distinguish the damping mechanism in the following example, the damping mechanism 44 in this example may also be referred to as a convex-concave wheel damping mechanism.
  • the two pins 441 are arranged side by side along the X-axis direction, and each pin 441 extends along the Y-axis direction.
  • Each concave wheel 442 has two concave wheel holes 4421 arranged side by side along the X-axis direction, and the concave wheel 442 is sleeved on the pin 441 through the two concave wheel holes 4421, and there is a gap between the two concave wheels 442.
  • the two first springs 443 are respectively sleeved on the two pins 441, and are respectively located at the gap between the two concave wheels 442.
  • the damping swing arm 444 includes an annular rotating cam 4441 and a swing member 4442 located on one side of the annular rotating cam 4441 and fixedly connected to the rotating cam 4441.
  • the two side walls of the swing member 4442 at one end away from the rotating cam 4441 are provided with
  • two damping swing arms 444 are respectively sleeved on one of the pin shafts 441 through respective annular rotating cams 4441, and the two annular rotating cams 4441 are respectively arranged adjacent to one of the concave wheels 442, and are both located on the side of the concave wheels 442 away from the first spring 443, and the other two damping swing arms 444 are respectively sleeved on the other pin shaft 441 through respective annular rotating cams 4441, and the two annular rotating cams 4441 are respectively arranged adjacent to one of the concave wheels 442, and are both located on the side of the concave wheels 442 away from the first spring 443.
  • FIG. 16 is a schematic diagram of a partial structure of a connector provided in an embodiment of the present application.
  • a fifth connecting slot 4239 adapted to the damping swing arm 444 is provided on the connector 423, and the side wall of the fifth connecting slot 4239 is partially recessed to form a second groove 4240 adapted to the two second protrusions 4443.
  • FIG. 17 is an enlarged view of the QQ area in FIG. 3, and FIG. 18 is a cross-sectional view of FIG. 17 along the OO' direction. As shown in FIG. 15-FIG.
  • a connecting portion 445 is provided between the two damping swing arms 444 for connecting the two damping swing arms 444 .
  • the rotation of the connecting member 423 is converted into a linear motion of the first spring 443 (moving along the Y-axis direction on the pin shaft 441) through the cam surface (the contact surface between the concave wheel 442 and the annular rotating cam 4441), thereby compressing the first spring 443 and generating a damping force.
  • the rotating shaft structure 40 adopts three groups of damping mechanisms 44, and the three groups of damping mechanisms 44 are evenly distributed on the shaft cover 41.
  • the damping mechanism 44 formed by the three groups of convex and concave wheels improves the damping force of the rotating shaft structure 40, and realizes the opening and closing feel during the unfolding or folding process, and the pressure on the cam surface of each group of damping mechanisms 44 is evenly distributed, avoiding the problems of high pressure on the cam surface, easy wear of the cam surface, and insufficient life.
  • the damping mechanism 44 has a simple structure, simple processing, and low cost.
  • Figure 19 is a schematic diagram of the partial structure of the shaft structure provided in an embodiment of the present application.
  • the decorative door panel is not shown in Figure 19.
  • the first main swing member 4211 and the second main swing member 4212 of the main swing arm 421 are both provided with a fixing column 4213, the extension direction of the fixing column 4213 is opposite to the bending direction of the first main swing member 4211 and the second main swing member 4212, the first main swing member 4211 and the second main swing member 4212 of one of the main swing arms 421 in the main swing arm group are fixedly connected to one of the support door panels 45, for example, the first support door panel 451, through the fixing column 4213, and the first main swing member 4211 and the second main swing member 4212 of the other main swing arm 421 in the main swing arm group are fixedly connected to another support door panel 45, for example, the second support door panel 452, through the fixing column 4213, so that the two support door panels 45 are arranged on both sides of the shaft cover 41 along the X-axis direction.
  • the support door panel 45 is fixedly connected to the main swing arm 421, and the movement of the support door panel 45 is controlled by the movement of the main swing arm 421.
  • the first display unit 10 is supported by the first supporting door panel 451 and the second supporting door panel 452. In the unfolded state, the first display unit 10 is supported to prevent the first display unit 10 from being pressed and collapsed. In the folded state (as shown in FIG. 20 ), the bending area of the first display unit 10 is supported to prevent the first display unit 10 from collapsing.
  • the present embodiment does not limit the material of the supporting door panel 45, and those skilled in the art can select it according to the actual situation.
  • the material of the supporting door panel 45 includes super polymer material
  • the supporting door panel 45 can be formed in one piece. In this way, the bearing capacity of the supporting door panel 45 for the first display unit 10 can be improved, and the reliability of supporting the first display unit 10 can be improved, and the reliability and economy of the processing of the supporting door panel 45 can also be improved.
  • Fig. 21 is a partial structural schematic diagram of the rotating shaft structure provided by the embodiment of the present application
  • Fig. 22 is a cross-sectional view of Fig. 21 along the PP' direction.
  • the first decorative door panel 461 is fixedly connected to the sliding member 4222 of one of the auxiliary swing arms 422 in the auxiliary swing arm group
  • the second decorative door panel 462 is fixedly connected to the sliding member 4222 of another auxiliary swing arm 422 in the auxiliary swing arm group
  • the movement of the auxiliary swing arm 422 controls the movement of the decorative door panel 46.
  • FIG. 23 is a schematic diagram of a partial structure of a connector provided in an embodiment of the present application
  • FIG. 24 is a schematic diagram of a partial structure of a decorative door panel provided in an embodiment of the present application.
  • the two opposite ends of the decorative door panel 46 are partially bent, and a decorative slide 463 is formed between the bent portion and the unbent portion.
  • the two opposite ends of the connector 423 are provided with a second protrusion 4241, and the second protrusion 4241 is located in the decorative slide 463.
  • the first decorative door panel 461 and the second decorative door panel 462 can shield at least part of the rotating mechanism 42, the synchronization mechanism 43, and the damping mechanism 44 to protect the above structures.
  • the hinge structure 40 provided in the embodiment of the present application can increase the damping force of the damping mechanism, and the damping mechanism can not only provide a flattening force, but also provide a closing force, adjust the opening and closing feel of the hinge structure 40, and is beneficial to the user experience.
  • the life of the hinge structure 40 can be improved, and the problem of large cam surface pressure and severe wear when a single damping mechanism 44 is avoided, and the damping mechanism 44 has a simple structure and low cost.
  • the support door panel 45 is relatively flat and integrally formed, the processing reliability and processing economy are improved, and the bearing capacity of the support door panel 45 for the first display unit 10 is improved, and the screen crease problem is improved.
  • the main swing arm 421, the auxiliary swing arm 422 and the synchronization mechanism 43 have simple structures and cooperate with each other to ensure the bending reliability of the whole machine, reduce the weight of the whole machine, and reduce the cost.
  • FIG. 25 is a schematic diagram of the front structure of another rotating shaft structure provided in an embodiment of the present application
  • FIG. 26 is a schematic diagram of the back structure of another rotating shaft structure provided in an embodiment of the present application
  • FIG. 27 is an exploded view of the rotating shaft structure shown in FIG. 25
  • FIG. 28 is an exploded view of the rotating shaft structure shown in FIG. 26.
  • FIG. 25, FIG. 26, FIG. 27 and FIG. 28 do not show the decorative door panel 46.
  • the rotating shaft structure of the embodiment of the present application may include the decorative door panel 46.
  • the three damping mechanisms 44 include a first damping mechanism 44a, a second damping mechanism 44b and a third damping mechanism 44c.
  • the first damping mechanism 44a, the second damping mechanism 44b and the third damping mechanism 44c are arranged in sequence, and the second damping mechanism 44b is located between the first damping mechanism 44a and the third damping mechanism 44c.
  • the first damping mechanism 44a and the third damping mechanism 44c are, for example, the convex-concave wheel damping mechanism in the above example.
  • the specific structure of the damping mechanism can refer to the content in the above example, and will not be repeated here.
  • the specific structure of the second damping mechanism 44b is introduced below.
  • Figure 29 is an enlarged view of the WW area in Figure 25
  • Figure 30 is an enlarged view of the RR area in Figure 27.
  • the second damping mechanism 44b includes two flexible members with the same structure, the two flexible members are the first flexible member 44b1 and the second flexible member 44b2.
  • the second damping mechanism in this example is Structure 44b is also called a compliant damping mechanism.
  • the compliant member includes a compliant swing arm 446 and a flexible unit 447.
  • the compliant swing arm 446 includes a rotating shaft 4461 and a sliding portion 4462 located on one side of the rotating shaft 4461, a limit block 4463 is arranged on the upper surface of the sliding portion 4462, and two side walls of the sliding portion 4462 away from the rotating shaft 4461 are provided with two third convex columns 4464 extending along the Y-axis direction, wherein the extension directions of the two third convex columns 4464 are opposite (i.e., one extends in the +Y direction and the other extends in the -Y direction).
  • the flexible unit 447 includes a connecting rod 4471 and flexible beams 4472 located on both sides of the connecting rod 4471, and a limit hole 44711 is provided on the connecting rod 4471.
  • the shaft cover 41 is provided with a rotation hole (not shown in the figure) adapted to the rotation shaft 4461 , and the rotation shaft 4461 of the flexible swing arm 446 is inserted into the rotation hole of the shaft cover 41 to realize the rotation connection between the second damping mechanism 44b and the shaft cover 41 .
  • a fourth connecting slot 4242 is provided on the connecting member 423, and the side wall of the fourth connecting slot 4242 is partially recessed to form a third groove 4243 adapted to the two third bosses 4464, and the third bosses 4464 are located in the third groove 4243.
  • the flexible beams 4472 located on both sides of the connecting rod 4471 are respectively fixed to the side walls of the fourth connecting slot 4242, that is, the area where the side walls are not recessed, so as to achieve the fixation of the flexible unit 447 and the connecting member 423.
  • the limit block 4463 of the flexible swing arm 446 is clamped in the limit hole 44711 of the flexible unit 447, so as to achieve the fixed connection between the flexible swing arm 446 and the flexible unit 447.
  • the connecting member 423 is unfolded or folded along with the first body 20 and the second body 30 , the third protruding column 4464 slides and rotates in the third groove 4243 to achieve the sliding and rotating connection between the damping mechanism 44 and the connecting member 423 .
  • the connecting member 423 drives the sliding portion 4462 of the flexible swing arm 446 to slide, so that the sliding portion 4462 drives the connecting rod 4471 to move up and down (perpendicular to the Y-axis direction) to compress the flexible beam 4472 to generate a damping force.
  • the second damping mechanism 44b reaches a stable state, which helps the hinge structure 40 to maintain the hovering, unfolding, and closing states.
  • the flexible beam 4472 is bent, enters the closing force interval, generates a closing force, and the second damping mechanism 44b reaches the first steady state.
  • the first fuselage 20 and the second fuselage 30 will return to their initial positions, that is, they are in the folded state.
  • the flexible beam 4472 is between the closing force interval and the unfolding force interval, and the second damping mechanism 44b reaches a balanced steady state.
  • the first fuselage 20 and the second fuselage 30 maintain this position, that is, the angle between the plane where the first fuselage 20 is located and the plane where the second fuselage 30 is located is still the preset angle.
  • the flexible beam 4472 continues to bend and enters the deployment force range to generate deployment force, and the second damping mechanism 44b reaches a second steady state, realizing relative sliding between the connecting member 423 and the second damping mechanism 44b, which is beneficial to the deployment of the first fuselage 20 and the second fuselage 30.
  • the rotating shaft structure 40 is described by taking the rotating shaft structure 40 as including three damping mechanisms 44, and the three damping mechanisms 44 include two convex-concave wheel damping mechanisms and one compliant damping mechanism, and the compliant damping mechanism is located between the two convex-concave wheel damping mechanisms, but it does not constitute a limitation of the present application, and those skilled in the art can set it according to actual conditions.
  • the rotating shaft structure 40 may also include three compliant damping mechanisms, or include two compliant damping mechanisms and one convex-concave wheel damping mechanism, etc.
  • the specific setting positions and connection relationships are the same as those in the above examples, and will not be repeated here. For details, please refer to the corresponding contents of the above two examples.
  • the hinge structure 40 provided in the embodiment of the present application can increase the damping force of the damping mechanism, and the setting of the second damping mechanism helps to maintain the hovering, unfolding, and closing states of the hinge structure 40, adjust the opening and closing feel of the hinge structure 40, and is beneficial to the user experience.
  • the life of the hinge structure 40 can be improved, and the problem of large cam surface pressure and severe wear when a single damping mechanism 44 is avoided, and the damping mechanism 44 has a simple structure and low cost.
  • the support door panel 45 is relatively flat and integrally formed, the processing reliability and processing economy are improved, and the bearing capacity of the support door panel 45 for the first display unit 10 is improved, and the screen crease problem is improved.
  • the main swing arm 421, the auxiliary swing arm 422 and the synchronization mechanism 43 have simple structures and cooperate with each other to ensure the bending reliability of the whole machine, reduce the weight of the whole machine, and reduce the cost.
  • the three damping mechanisms 44 include a first damping mechanism 44a, a second damping mechanism 44b and a third damping mechanism 44c.
  • the first damping mechanism 44a, the second damping mechanism 44b and the third damping mechanism 44c are arranged in sequence, and the second damping mechanism 44b is located between the first damping mechanism 44a and the third damping mechanism 44c.
  • the first damping mechanism 44a and the third damping mechanism 44c are, for example, the convex-concave wheel damping mechanism in the above example.
  • the specific structure of the damping mechanism can refer to the content in the above example, and will not be repeated here.
  • the specific structure of the second damping mechanism 44b is introduced below.
  • Figure 36 is a partial view of the positional relationship between the second damping mechanism and the shaft cover provided in the embodiment of the present application
  • Figure 37 is a cross-sectional view of Figure 36 along the TT' direction.
  • the second damping mechanism 44b includes two lateral members with the same structure, the two lateral members are respectively a first lateral member 44b3 and a second lateral member 44b3.
  • the second damping mechanism 44b in this example is also referred to as a lateral damping mechanism.
  • FIG. 38 is a top view of the second damping mechanism provided in the embodiment of the present application
  • FIG. 39 is a stereoscopic view of the second damping mechanism provided in the embodiment of the present application.
  • the lateral member includes a lateral swing arm 448 and a lateral rotating portion 449.
  • the cross-sectional shape of the lateral rotating portion 449 is, for example, an arc or an approximately arc, that is, the projection of the lateral rotating portion 449 on the plane formed by the X-axis and the Y-axis is an arc or an approximately arc.
  • the side walls of the lateral swing arm 448 are both provided with a second convex strip 4481
  • the connecting member 423 is provided with a fifth connecting slot (not shown in the figure)
  • the side wall of the fifth connecting slot is partially recessed to form a fourth groove (not shown in the figure) adapted to the two second convex strips 4481
  • the second convex strip 4481 is located in the fourth groove.
  • a third shaft cover slide groove (not shown in the figure) adapted to the lateral rotating portion 449 is provided on the shaft cover 41, and the lateral rotating portion 449 is located in the third shaft cover slide groove to realize the rotational connection between the second damping mechanism 44b and the shaft cover 41, so that the lateral swing arm 448 can rotate relative to the shaft cover 41 when the position of the shaft cover 41 remains unchanged.
  • the lateral member includes two lateral rotating parts 449 disposed at intervals
  • the lateral swing arm 448 is a non-closed annular structure, that is, the lateral swing arm 448 has an opening 4482, and the opening 4482 is arranged so that the lateral swing arm 448 has two end parts 4483 disposed at intervals, and the two lateral rotating parts 449 are respectively connected to the two end parts 4483 of the lateral swing arm 448, and a partial area of the shaft cover 41 is located in the gap between the two lateral rotating parts 449.
  • a support member 4484 and a roller 4485 rotatably connected to the support member 4484 are disposed in the annular lateral swing arm 448.
  • At least one second spring 4486 is sleeved on the support member 4484. The opposite ends of the second spring 4486 are respectively fixedly connected to the support member 4484 and the roller 4485.
  • a bottom surface 4487 is provided at the position of the lateral swing arm 448 opposite to the second spring 4486, that is, in the expanded state, the projection of the second spring 4486 on the plane formed by the X-axis and the Y-axis is located at the projection of the bottom surface 4487 on the plane formed by the X-axis and the Y-axis.
  • the connecting member 423 when the connecting member 423 is unfolded or folded along with the first body 20 and the second body 30, the connecting member 423 drives the lateral swing arm 448 to rotate relative to the shaft cover 41, and the roller 4485 moves around the side wall of the shaft cover 41.
  • the shaft cover 41 squeezes the roller 4485, and then the roller 4485 compresses the second spring 4486. Accordingly, the roller 4485 is subjected to a load F, generating a damping force.
  • the convex-concave wheel damping mechanism is used to provide the opening and closing feel force
  • the force between the roller and the shaft cover in the lateral damping mechanism is used to avoid the problem that the lateral damping mechanism only has a flattening force but cannot generate a closing force, thereby improving the unfolding retention force of the hinge structure, so that the foldable terminal has a better feel during the unfolding or folding process, which is beneficial to the user experience.
  • this example is described by taking the rotating shaft structure 40 as including three damping mechanisms 44, and the three damping mechanisms 44 include two convex-concave wheel damping mechanisms and one lateral damping mechanism, and the lateral damping mechanism is located between the two convex-concave wheel damping mechanisms, but it does not constitute a limitation of the present application, and those skilled in the art can set it according to actual conditions.
  • the rotating shaft structure 40 may also include two lateral damping mechanisms and one convex-concave wheel damping mechanism, or, a compliant damping mechanism and two lateral damping mechanisms, or, two compliant damping mechanisms and a lateral damping mechanism, or, a compliant damping mechanism, a convex-concave wheel damping mechanism and a lateral damping mechanism, etc.
  • the specific setting position and connection relationship are the same as those in the above examples, and will not be repeated here. For details, please refer to the corresponding contents of the above two examples.
  • the connecting member 423 in order to facilitate the preparation of the connecting member 423, can be formed as one piece (such as the connecting member 423 in the first example and the second example), and the connecting member 423 can also be composed of a plurality of structural members (such as the plurality of structural members 4236 in the third example).
  • the hinge structure 40 provided in the embodiment of the present application can increase the damping force of the damping mechanism.
  • the damping mechanism can generate both flattening force and closing force.
  • the convex and concave wheel damping mechanism provides the opening and closing feel of the hinge structure 40.
  • the lateral damping mechanism improves the unfolding retention force of the hinge structure 40 through the action between the roller 4485 and the shaft cover 41, which is beneficial to the user experience.
  • the hinge structure 40 is applied to an outward-folding folding terminal, the life of the hinge structure 40 can be increased, and the problem of high cam surface pressure and severe wear when there is a single damping mechanism 44 can be avoided.
  • the support door panel 45 is relatively flat and integrally formed, the processing reliability and processing economy are improved, and the bearing capacity of the support door panel 45 on the first display unit 10 is improved, improving the screen
  • the main swing arm 421, the auxiliary swing arm 422 and the synchronization mechanism 43 have simple structures and cooperate with each other to ensure the bending reliability of the whole machine, reduce the weight of the whole machine, and reduce the cost.
  • the rotating shaft structure 40 provided in the embodiment of the present application increases the damping force of the damping mechanism and adjusts the opening and closing feel of the rotating shaft structure 40 through three groups of convex-concave wheel damping mechanisms 44, or three groups of flexible damping mechanisms 44, or a combination of convex-concave wheel damping mechanisms 44 and flexible damping mechanisms 44, or a combination of lateral damping mechanisms 44 and convex-concave wheel damping mechanisms 44, or a combination of lateral damping mechanisms 44 and flexible damping mechanisms 44, which is beneficial to user experience.
  • the supporting door panel 45 is relatively flat and integrally formed, the processing reliability and processing economy are improved, and the bearing capacity of the supporting door panel 45 for the first display unit 10 is improved, and the problems such as screen creases are improved.
  • the main swing arm 421, the auxiliary swing arm 422 and the synchronization mechanism 43 have simple structures and cooperate with each other to ensure the bending reliability of the whole machine, reduce the weight of the whole machine, and reduce costs.

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Abstract

本申请实施例提供一种转轴结构及折叠式终端，可以提升开合手感。该转轴结构应用于外折折叠式终端，外折折叠式终端包括第一机身和第二机身，以及连接第一机身和第二机身的转轴结构。该转轴结构包括：轴盖；两个连接件，位于轴盖的两侧，用于分别与第一机身和第二机身连接；转动机构，与轴盖转动连接以及与连接件滑动和转动连接，控制连接件的运动；同步机构，与轴盖转动连接以及与连接件滑动和转动连接，用于同步两个连接件的转动；多个阻尼机构，多个阻尼机构包括凸凹轮阻尼机构和/或柔顺阻尼机构；凸凹轮阻尼机构的第一弹簧压缩，并产生轴向的挤压力，作用于凹轮与转动凸轮之间，以产生阻尼力；柔顺阻尼机构的柔性梁压缩，以产生阻尼力。

Description

转轴结构及折叠式终端
本申请要求于2023年02月16日提交中国国家知识产权局、申请号为202310165524.5、申请名称为“转轴结构及折叠式终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电子设备技术领域，尤其涉及一种转轴结构及折叠式终端。
背景技术
随着显示技术的不断发展，折叠式终端(如折叠式手机)逐渐成为未来移动电子产品的一个发展趋势。折叠式终端在展开状态下，能够获得较大的显示面积，提升视觉效果，在折叠状态下，能够获得较小的体积，便于用户携带，因此，受到越来越多用户的青睐。
实现折叠式终端展开或折叠的结构为转轴结构，转轴结构包括阻尼机构、同步机构等，折叠式终端在展开或折叠过程中，阻尼机构提供阻尼力，实现开合手感。然而，现有的阻尼机构存在阻尼力小、开合手感差等问题。
发明内容
为了解决上述技术问题，本申请提供一种转轴结构及折叠式终端。可以提高转轴结构的阻尼力，实现开合手感，且结构简单，成本低。
第一方面，本申请实施例提供一种转轴结构，该转轴结构应用于外折折叠式终端，外折折叠式终端包括第一机身和第二机身，以及连接第一机身和第二机身的转轴结构，该转轴结构包括：轴盖；两个连接件，位于轴盖的两侧，用于分别与第一机身和第二机身连接；转动机构，与轴盖转动连接以及与连接件滑动和转动连接，用于控制连接件的运动；同步机构，与轴盖转动连接以及与连接件滑动和转动连接，用于同步两个连接件的转动；多个阻尼机构，多个阻尼机构包括凸凹轮阻尼机构和/或柔顺阻尼机构；凸凹轮阻尼机构包括销轴、凹轮、第一弹簧和至少两个阻尼摆臂，销轴与轴盖固定连接，凹轮和第一弹簧均套设于销轴上；阻尼摆臂包括套设于销轴上，且与凹轮相邻并接触的转动凸轮和位于转动凸轮一侧的摆动件，两个阻尼摆臂的摆动件分别与两个连接件滑动转动连接；当摆动件与连接件滑动转动时，第一弹簧压缩，并产生轴向的挤压力，作用于凹轮与转动凸轮之间，以产生阻尼力；柔顺阻尼机构包括两个柔顺件，柔顺件包括柔顺摆臂和柔性单元，两个柔顺件的柔性单元分别固定于两个连接件上，柔顺摆臂的一端与轴盖转动连接，两个柔顺件的柔顺摆臂的另一端分别与连接件滑动转动连接；柔性单元包括连接杆和柔性梁，柔顺摆臂与连接杆固定连接；当柔顺摆臂的另一端与连接件滑动转动时，带动连接杆移动，柔性梁压缩，以产生阻尼力。
外折折叠式终端中的多个阻尼机构包括凸凹轮阻尼机构和/或柔顺阻尼机构，可以增加阻尼机构的阻尼力，且该阻尼机构不仅可以提供展平力，还可以提供闭合力，调整转轴结构的开合手感，有利于用户体验。且当多个阻尼机构为多个凸凹轮阻尼机构机构时，可以避免当为单个阻尼机构时凸轮面压力较大，磨损严重的问题，当多个阻尼机构包括柔顺阻尼机构时，有助于转轴结构的悬停、展开、闭合状态的保持。且阻尼机构的结构简单，成本低。
在一些可能实现的方式中，多个阻尼机构还包括侧向阻尼机构；侧向阻尼机构包括两个侧向件，侧向件包括侧向摆臂和侧向转动部，侧向转动部与轴盖转动连接，两个侧向件的侧向摆臂分别与两个连接件滑动连接；侧向摆臂内设有支撑件和与支撑件转动连接的滚轮，支撑件上套设有至少一个第二弹簧，第二弹簧相对的两端分别与支撑件和滚轮固定连接；当两个连接件所在平面的角度位于预设角度范围内时，滚轮与轴盖的侧壁接触，所述轴盖对所述滚轮产生挤压，所述第二弹簧压缩，以产生阻尼力。
侧向阻尼机构的设置，使得转轴结构处于展开态时，通过滚轮与轴盖之间的作用力，提高转轴结构的展开保持力，有利于用户体验，且与凸凹轮阻尼机构和/或柔顺阻尼机构，进一步提升开合手感。
示例性的，预设角度范围例如可以为90°-180°、120°-180°或150°-180°等。
在一些可能实现的方式中，转动机构包括主摆臂组；主摆臂组包括分设于轴盖两侧的两个主摆臂；主摆臂包括固定连接的第一主摆件和第二主摆件，连接件上开设有与第二主摆件适配的第一连接滑槽，主摆臂通过第二主摆件与连接件转动连接，轴盖上开设有与第一主摆件适配的第一轴盖滑槽，主摆臂通过第一主摆件与轴盖转动连接，轴盖的位置不变，主摆臂组中的两个主摆臂的第一主摆件相对与轴盖转动，以通过主摆臂组中的两个主摆臂的第二主摆件带动两个连接件转动。
本申请提供的主摆臂的结构简单，降低制备难度，且成本较低。
在一些可能实现的方式中，在上述主摆臂包括固定连接的第一主摆件和第二主摆件的基础上，第一主摆件和第二主摆件的截面形状均呈弧形，提升整机弯折的可靠性。
在一些可能实现的方式中，转动机构还包括副摆臂组；副摆臂组包括分设于轴盖两侧的两个副摆臂，副摆臂包括摆臂转动件和滑动件；摆臂转动件固定于滑动件的侧壁上，滑动件上设置有第一凸块，第一凸块与滑动件之间形成至少一个摆臂滑槽；连接件上开设有与滑动件适配的第二连接滑槽，且第二连接滑槽的侧壁上形成有与摆臂滑槽适配的第一凸形条，副摆臂通过摆臂滑槽与连接件的滑动连接，轴盖上开设有与摆臂转动件适配的第二轴盖滑槽，副摆臂通过摆臂转动件与轴盖转动连接，轴盖的位置不变，副摆臂组中的两个副摆臂的摆臂转动件相对与轴盖转动，以通过副摆臂组中的两个副摆臂的滑动件带动两个连接件转动。
本申请提供的副摆臂的结构简单，降低制备难度，且成本较低。
在一些可能实现的方式中，同步机构包括两个同步件，同步件包括同步摆臂和齿轮，两个同步件的齿轮相互啮合，两个同步件的同步摆臂分设与相互啮合的两个齿轮的两侧；齿轮通过齿轮轴与轴盖转动连接，同步摆臂远离齿轮的一端的两侧壁上设有第一凸柱；连接件上开设有与同步摆臂适配的第三连接滑槽，且第三连接滑槽的侧壁局部凹陷形成与第一凸柱适配的第一凹槽，第一凸柱在第一凹槽内滑动转动，以使同步机构与连接件滑动转动连接。
本申请提供的同步机构的结构简单，降低制备难度，且成本较低，且保证整机弯折时同步的可靠性。
在一些可能实现的方式中，折叠式终端还包括柔性屏，位于第一机身、转轴结构和第二机身的一侧；转轴结构还包括支撑门板，与转动机构固定连接，并跟随转动机构的转动而转动，支撑门板用于在对柔性屏进行支撑。
支撑门板的连接方式简单，且通过支撑门板对柔性屏进行支撑，减小屏幕应力，防止柔性屏的弯折区出现塌陷或跌落损坏等问题。
在一些可能实现的方式中，在上述转轴结构还包括支撑门板的基础上，当主摆臂包括第一主摆件和第二主摆件时，第一主摆件和第二主摆件均设有固定柱，主摆臂通过固定柱与支撑门板连接。即通过固定柱即可实现支撑门板的连接，固定方式简单，且无需改变其他结构，有利于其他结构的设置。
在一些可能实现的方式中，在上述转轴结构还包括支撑门板的基础上，支撑门板的材料包括超强高分子材料，支撑门板一体成型。
这样设置，提高支撑门板加工可靠性和加工经济性，且形成的支撑门板较平整，提升支撑门板对柔性屏的承载能力，改善屏幕折痕等问题。
在一些可能实现的方式中，转轴结构还包括装饰门板，与转动机构固定连接，并跟随转动机构的转动而转动，装饰门板用于在对转动机构、同步机构和/或阻尼机构进行遮挡，以对转动机构、同步机构和/或阻尼机构进行保护，防止转动机构、同步机构和/或阻尼机构与终端内的其他结构有干涉。
在一些可能实现的方式中，在上述转轴结构还包括装饰门板的基础上，当副摆臂包括摆臂转动件和滑动件时，装饰门板与滑动件背离第一凸块的一侧固定连接，以使装饰门板与副摆臂固定连接；装饰门板相对的两端部分弯折，装饰门板弯折的部分与装饰门板未弯折的部分之间形成装饰滑槽，连接件相对的两端处设置有第二凸块，第二凸块位于装饰滑槽内，装饰门板通过装饰滑槽与连接件滑动连接。即通过副摆臂即可实现装饰门板的连接，固定方式简单，且无需改变其他结构，有利于其他结构的设置。
在一些可能实现的方式中，在上述转轴结构还包括装饰门板的基础上，装饰门板的材料包括超强高分子材料，装饰门板一体成型。
这样设置，提高装饰门板加工可靠性和加工经济性，且形成的装饰门板较平整，当该转轴结构设置于折叠式终端内时，方便终端内其他结构的设置。
在一些可能实现的方式中，销轴、凹轮和第一弹簧的数量均为两个，阻尼摆臂的数量为四个；两个销轴沿第一方向并排设置，且销轴沿第二方向延伸，凹轮具有两个凹轮孔，两个凹轮孔沿第一方向并排设置，凹轮通过两个凹轮孔分别套设于两个销轴上，且两个凹轮之间具有间隙，两个第一弹簧分别套设于两个销轴上，且分别位于两个凹轮之间的间隙处，其中两个阻尼摆臂的转动凸轮与其中一个凹轮紧邻设置，且沿第二方向，位于凹轮背离第一弹簧的一侧，另两个阻尼摆臂的转动凸轮与另一个凹轮紧邻设置，且沿第二方向，位于凹轮背离第一弹簧的一侧；摆动件远离转动凸轮的一端的两侧壁上设有第二凸柱，连接件上开设有与阻尼摆臂适配的第五连接滑槽，且第五连接滑槽的侧壁局部凹陷形成与第二凸柱适配的第二凹槽，第二凸柱在第二凹槽内滑动转动，以使阻尼机构与连接件滑动转动连接；其中，第一方向为第一机身指向第二机身的方向，第二方向为转轴结构的轴向方向。
本申请提供的阻尼机构的结构简单，降低制备难度，且成本较低，且提供的阻尼力较大。
示例性的，第一方向为实施例中的X轴方向，第二方向为实施例中的Y轴方向。
在一些可能实现的方式中，在上述销轴、凹轮和第一弹簧的数量均为两个，阻尼摆臂的数量为四个的基础上，位于同一销轴上的两个阻尼摆臂之间设置有连接部，连接部的两端分别与两个阻尼摆臂固定连接。以保证位于同一销轴上的两个阻尼摆臂的同步性，保证整机弯折时的可靠性。
在一些可能实现的方式中，柔顺摆臂包括转动轴和位于转动轴一侧的滑动部，滑动部上设置有限位块，且滑动部远离转动轴的一端的两侧壁上均设有第三凸柱；柔性梁位于连接杆的两侧，连接杆上开设有限位孔；轴盖上设置有与转动轴适配的转动孔，以使柔顺摆臂与轴盖转动连接；连接件上开设有第四连接滑槽，且第四连接滑槽的侧壁局部凹陷形成与第三凸柱适配的第三凹槽，第三凸柱在第三凹槽内滑动转动，以使柔顺摆臂与连接件滑动转动连接；位于连接杆两侧的柔性梁分别固定于第四连接滑槽未凹陷的侧壁上，柔顺摆臂的限位块卡接在连接杆的限位孔中，以使柔顺摆臂和连接杆固定连接。
本申请提供的阻尼机构的结构简单，降低制备难度，且成本较低，且提供的阻尼力较大。
在一些可能实现的方式中，在上述多个阻尼机构还包括侧向阻尼机构时，侧向摆臂的两侧壁上设有第二凸形条，连接件上开设有第五连接滑槽，且第五连接滑槽的侧壁局部凹陷形成与第二凸形条适配的第四凹槽，第二凸形条在第四凹槽内滑动，以使侧向摆 臂与连接件滑动连接；轴盖上开设有与侧向转动部适配的第三轴盖滑槽，侧向件通过侧向转动部与轴盖转动连接；侧向转动部的数量为两个，两个侧向转动部间隔设置；侧向摆臂为具有开口的环形结构，两个侧向转动部分别侧向摆臂固定连接，且位于开口的两侧；支撑件位于环形结构内，滚轮位于两个侧向转动部的间隙处。
本申请提供的阻尼机构的结构简单，降低制备难度，且成本较低，且提供的阻尼力较大。
在一些可能实现的方式中，阻尼机构的数量为三个。当阻尼机构的数量为三个时，既不会因为数量阻尼机构的数量过多而增加成本，也不会因为阻尼机构的数量过少而减小阻尼力，影响开合手感。
在一些可能实现的方式中，三个阻尼机构均为凸凹轮阻尼机构；或者，三个阻尼机构均为柔顺阻尼机构；或者，三个阻尼机构中至少一个为凸凹轮阻尼机构，至少一个为柔顺阻尼机构。当然，三个阻尼机构的组合方式并不限于此。
在一些可能实现的方式中，阻尼机构的数量为三个；三个阻尼机构中至少一个为凸凹轮阻尼机构，至少一个为侧向阻尼机构；或者，三个阻尼机构中至少一个为柔顺阻尼机构，至少一个为侧向阻尼机构。当然，三个阻尼机构的组合方式并不限于此。
第二方面，本申请实施例提供一种折叠式终端，该折叠式终端为外折折叠式终端，所述外折折叠式终端包括第一方面的转轴结构，具有与第一方面相同的有益效果。
附图说明
图1为本申请实施例提供的一种折叠式终端的结构示意图；
图2为本申请实施例提供的折叠式手机折叠时的示意图；
图3为本申请实施例提供的一种转轴结构的正面结构示意图；
图4为本申请实施例提供的一种转轴结构的背面结构示意图；
图5为图3所示转轴结构的爆炸图；
图6为图4所示转轴结构的爆炸图；
图7为本申请实施例提供的一种主摆臂的结构示意图；
图8为本申请实施例提供的一种连接件的局部结构示意图；
图9为本申请实施例提供的主摆臂和连接件、轴盖的位置关系图；
图10为本申请实施例提供的一种副摆臂组的结构示意图；
图11为本申请实施例提供的一种连接件的局部结构示意图；
图12为本申请实施例提供的一种同步机构的结构示意图；
图13为本申请实施例提供的一种连接件的局部结构示意图；
图14为本申请实施例提供的一种阻尼机构的俯视图；
图15为本申请实施例提供的一种阻尼机构的立体图；
图16为本申请实施例提供的一种连接件的局部结构示意图；
图17为图3中QQ区域的放大图；
图18为图17沿OO’方向的剖面图；
图19为本申请实施例提供的转轴结构的局部结构示意图；
图20为本申请实施例提供的当折叠式终端处于折叠态时支撑门板的位置关系图；
图21为本申请实施例提供的转轴结构的局部结构示意图；
图22为图21沿PP’方向的剖视图；
图23为本申请实施例提供的连接件的局部结构示意图；
图24为本申请实施例提供的装饰门板的局部结构示意图；
图25为本申请实施例提供的又一种转轴结构的正面结构示意图；
图26为本申请实施例提供的又一种转轴结构的背面结构示意图；
图27为图25所示转轴结构的爆炸图；
图28为图26所示转轴结构的爆炸图；
图29为图25中WW区域的放大图；
图30为图27中RR区域的放大图；
图31为图29沿SS’方向的剖面图；
图32为本申请实施例提供的又一种转轴结构的正面结构示意图；
图33为本申请实施例提供的又一种转轴结构的背面结构示意图；
图34为图32所示转轴结构的爆炸图；
图35为图33所示转轴结构的爆炸图；
图36为本申请实施例提供的第二阻尼机构与轴盖的位置关系局部图；
图37为图36沿TT’方向的剖面图；
图38为本申请实施例提供的第二阻尼机构的俯视图；
图39为本申请实施例提供的第二阻尼机构的立体图。
附图标记：
10-第一显示单元；20-第一机身；30-第二机身；40-转轴结构；100-折叠式手机；
21-第一外壳；22-第一中框；221-第一外观件；
31-第二外壳；32-第二中框；321-第二外观件；
41-轴盖；411-第一轴盖滑槽；
42-转动机构；421-主摆臂；4211-第一主摆件；4212-第二主摆件；4213-固定柱；
422-副摆臂；4221-摆臂转动件；4222-滑动件；42221-第一滑动面；42222-第二滑动面；42223-侧滑动面；4223-第一凸块；42231-第一凸形部；42232-第二凸形部；4224-摆臂滑槽；423-连接件；4230-连接孔；4231-第一连接件；4232-第二连接件；4233-第一连接滑槽；4234-第二连接滑槽；4235-第一凸形条；4236-结构件；4237-第三连接滑槽；4238-第一凹槽；4239-第五连接滑槽；4240-第二凹槽；4241-第二凸块；4242-第四连接滑槽；4243-第三凹槽；
43-同步机构；431-同步件；4311-同步摆臂；43111-第一凸柱；4312-齿轮；43121-
齿轮部；43122-齿轮转动部；
44-阻尼机构；44a-第一阻尼机构；44b-第二阻尼机构；44b1-第一柔顺件；44b2-第
二柔顺件；44b3-第一侧向件；44b3-第二侧向件；44c-第三阻尼机构；441-销轴；442-凹轮；4421-凹轮孔；443-弹簧；444-阻尼摆臂；4441-环形转动凸轮；4442-摆动件；4443-第二凸柱；445-连接部；446-柔顺摆臂；4461-转动轴；4462-滑动部；4463-限位块；4464-第三凸柱；447-柔性单元；4471-连接杆；44711-限位孔；4472-柔性梁；448-侧向摆臂；4481-第二凸形条；4482-开口；4483-端部；4484-支撑件；4485-滚轮；449-侧向转动部；4486-第二弹簧；4487-底面；
45-支撑门板；451-第一支撑门板；452-第二支撑门板；
46-装饰门板；461-第一装饰门板；462-第二装饰门板；463-装饰滑槽。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。
本申请实施例的说明书和权利要求书中的术语“第一”和“第二”等是用于区别不同的对象，而不是用于描述对象的特定顺序。例如，第一目标对象和第二目标对象等是用于区别不同的目标对象，而不是用于描述目标对象的特定顺序。
在本申请实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
在本申请实施例的描述中，除非另有说明，“多个”的含义是指两个或两个以上。例如，多个处理单元是指两个或两个以上的处理单元；多个系统是指两个或两个以上的系统。
本申请实施例提供一种折叠式终端，本申请实施例提供的折叠式终端可以是手机、平板电脑、个人数字助理(personal digital assistant，简称PDA)、车载电脑、电视、智能穿戴式设备、智能家居设备等，本申请实施例对上述折叠式终端的具体形式不作特殊限定。以下为了方便说明，以折叠式终端是折叠式手机为例进行说明。
参见图1，图1为本申请实施例提供的一种折叠式终端的结构示意图。如图1所示，折叠式手机100包括第一显示单元(也称为折叠屏或柔性屏)10。
第一显示单元10例如为具有柔性的显示屏。第一显示单元10例如包括有机发光二极管(Organic Light Emitting Diode，OLED)显示屏。OLED显示屏无需背光模组，且OLED显示屏中的衬底基板例如可以采用柔性树脂材料，例如为聚对苯二甲酸乙二醇酯(Polyethylene terephthalate，PET)，使得OLED显示屏具有可弯折的特性。当然，第一 显示单元10的类型包括但不限于OLED显示屏，只要可以实现弯折的显示屏均在本申请的保护范围内，例如还可以为液晶显示(Liquid Crystal Display，LCD)屏、LED显示屏(例如包括Micro-LED显示屏、Mini-LED显示屏)等。
需要说明的是，为了便于清楚描述后续各结构特征及结构特征的位置关系，以X轴方向、Y轴方向及Z轴方向来规定折叠式手机100内各结构的位置关系。其中，X轴方向为折叠式手机100展开后的宽度方向，Y轴方向为折叠式手机100展开后的长度方向，Z轴方向为折叠式手机100展开后的厚度方向。
继续参见图1，折叠式手机100还包括结构组件。结构组件包括第一机身20、第二机身30和转轴结构40，沿X轴方向，第一机身20和第二机身30位于转轴结构40的两侧，转轴结构40分别与第一机身20和第二机身30相连接。第一机身20、转轴结构40、第二机身30可以用于承载第一显示单元10。第一机身20、第二机身30可以分别绕转轴结构40的轴线S0(平行于Y轴方向)进行旋转，实现第一显示单元10的折叠或展开等状态，即实现折叠式手机100的折叠或展开等状态。
需要说明的是，该折叠式手机100可以在多个位置处发生折叠，相应的，结构组件可以包括多个转轴结构40和多个机身。例如可以包括两个转轴结构40和三个机身，相邻的两个机身之间通过一个转轴结构40相连，这样一来，该折叠式手机100具有两个折叠位置。可见，结构组件包括至少一个转轴结构40和至少两个机身，相邻两个机身通过一个转轴结构40相连。为了方便说明，本申请实施例均以结构组件包括一个转轴结构40和两个机身(即第一机身20和第二机身30)为例进行说明。
图1示出的是折叠式手机展开后的示意图。图2示出的是折叠式手机折叠时的示意图。图2中，当折叠式手机100折叠时，其可以朝背离第一显示单元10的出光方向(图2中箭头所指)折叠，即第一机身分部20、第二机身分部30绕转轴结构40进行旋转的方向与柔性屏10的出光方向相反，亦即，当折叠式手机100处于折叠态时，第一显示单元10裸露于外侧，在此情况下，折叠式手机100也可称为外折折叠式手机。
继续参见图1，第一机身20包括第一外壳21和第一中框22。第二机身30包括第二外壳31和第二中框32。
第一外壳21可以为折叠式手机100的后盖(也称为电池盖)；也可以为用于显示的显示单元，本申请实施例对此不作限定。第二外壳31可以为折叠式手机的后盖(也称为电池盖)；也可以为用于显示的显示单元，本申请实施例对此也不作限定。本申请实施例均以第一外壳21为后盖，第二外壳31为显示单元(也称为第二显示单元或显示屏，以区分上述第一显示单元10)为例进行说明。
第二显示单元31类型例如包括LCD显示屏、OLED显示屏和LED显示屏等类型的显示屏。
继续参见图1，第一中框22包括第一外观件221和位于第一显示单元10和后盖21之间的第一支撑件(图1中未示出)。第二中框32包括第二外观件321和位于第一显示单元10和第二外壳31之间的第二支撑件(图1中未示出)。
第一显示单元10、后盖21、第一外观件221、第二显示单元31和第二外观件321围成容纳腔体。容纳腔体内设置有印刷电路板、柔性电路板、功能器件等结构(图1和 图2未示出)，其中，功能器件例如包括显示驱动模块、摄像头和电池等。通过第一中框22的第一支撑件和第二中框32的第二支撑件对容纳腔体内的结构进行支撑。
转轴结构40包括轴盖、转动结构、同步机构、阻尼机构和门板等。然而，现有转轴结构40中的各结构，零件数较多，加工复杂，且成本高，且现有的阻尼机构存在阻尼力小、开合手感差等问题。
基于此，本申请实施例提供一种转轴结构，该转轴结构零件数量，简化组装，减少整机重量，以及降低成本，提高转轴结构的阻尼力，实现开合手感。此外，还可以改善屏幕折痕等问题。
下面对本申请实施例提供的转轴结构的具体结构进行介绍。
一种示例中，参见图3、图4、图5和图6，图3为本申请实施例提供的一种转轴结构的正面结构示意图，图4为本申请实施例提供的一种转轴结构的背面结构示意图，图5为图3所示转轴结构的爆炸图，图6为图4所示转轴结构的爆炸图。如图3、图4、图5和图6所示，转轴结构40包括轴盖41、转动机构42、同步机构43、阻尼机构44、两个支撑门板45和两个装饰门板46，其中，两个支撑门板45分别为第一支撑门板451和第二支撑门板452，两个装饰门板46分别为第一装饰门板461和第二装饰门板462。沿X轴方向，第一支撑门板451和第二支撑门板452分列在轴盖41的两侧，第一装饰门板461和第二装饰门板462分列在轴盖41的两侧。
需要说明的是，为了清楚的展示转轴结构40的轴盖41、转动机构42、同步机构43、阻尼机构44等结构，图3未示出装饰门板46(会对轴盖41、转动机构42、同步机构43、阻尼机构44造成遮挡)。
转动机构42包括主摆臂组和副摆臂组，其中，主摆臂组包括沿X轴方向分设于轴盖41两侧的两个主摆臂421，副摆臂组包括沿X轴方向分设于轴盖41两侧的两个副摆臂422。主摆臂组和副摆臂组的数量例如为多个，多个主摆臂组和多个副摆臂组均匀的分设于轴盖41上，示例性的，主摆臂组和副摆臂组的数量为三组，且均匀的分设于轴盖41上。
转轴结构40还包括沿X轴方向分设于轴盖41两侧的两个连接件423，两个连接件423分别为第一连接件4231和第二连接件4232，第一连接件4231和第二连接件4232上均开设有至少一个连接孔4230，第一连接件4231通过其上的连接孔4230与第一机身20固定连接，例如，第一连接件4231通过其上的连接孔4230与第一中框22的第一支撑件固定连接，以实现与第一机身20的固定连接；第二连接件4232通过其上的连接孔4230与第二机身30固定连接，例如，第二连接件4232通过其上的连接孔4230与第二中框32的第一支撑件固定连接，以实现与第二机身30的固定连接，即转轴结构40通过两个连接件423实现与第一机身20和第二机身30的连接，以通过转轴结构40实现第一机身20和第二机身30的折叠或展开。
参见图7、图8和图9，图7为本申请实施例提供的一种主摆臂的结构示意图，图8为本申请实施例提供的一种连接件的局部结构示意图，图9为主摆臂和连接件、轴盖的 位置关系图。如图7、图8和图9所示，主摆臂421包括固定连接的第一主摆件4211和第二主摆件4212，第一主摆件4211和第二主摆件4212的截面形状例如均呈弧形或近似弧形，即第一主摆件4211和第二主摆件4212在X轴和Z轴组成的平面上的投影均呈弧形或近似弧形。连接件423上开设有与第二主摆件4212适配的第一连接滑槽4233，第二主摆件4212的至少部分位于第一连接滑槽4233，以通过第一连接滑槽4233与连接件423转动连接。轴盖41上开设有与第一主摆件4211适配的第一轴盖滑槽411，第一主摆件4211的至少部分位于第一轴盖滑槽411，以通过第一轴盖滑槽411与轴盖41转动连接，从而使得在轴盖41位置不变的情况下，连接件423能够相对轴盖41转动，实现第一机身20和第二机身30开合。
需要说明的是，在X轴和Z轴组成的平面上的投影，是指折叠式手机100处于展开态时，X轴和Y轴组成的平面，下述示例相同，下述示例不再赘述。
参见图10，图10为本申请实施例提供的一种副摆臂组的结构示意图。如图10所示，副摆臂422包括摆臂转动件4221和与摆臂转动件4221一体形成的滑动件4222，摆臂转动件4221的截面形状例如呈弧形或近似弧形，即摆臂转动件4221在X轴和Z轴组成的平面上的投影呈弧形或近似弧形。滑动件4222例如为平板状。滑动件4222包括沿Z轴方向相对设置的第一滑动面42221和第二滑动面42222，还包括连接第一滑动面42221和第二滑动面42222的侧滑动面42223，摆臂转动件4221固定于侧滑动面42223，以实现与滑动件4222的固定连接。滑动件4222的第一表面42221上设置有第一凸块4223，第一凸块4223包括沿Z轴方向依次设置的第一凸形部42231和第二凸形部42232，第一凸形部42231在Y轴方向的尺寸小于第二凸形部42232在Y轴方向的尺寸，以使第二凸形部42232与第一表面42221形成至少一个摆臂滑槽4224，其中，图10以第二凸形部42232与第一表面42221形成两个摆臂滑槽4224，且沿Y轴方向两个摆臂滑槽4224相背为例进行的说明。
需要说明的是，本申请实施例以摆臂转动件4221和滑动件4222一体成型为例进行的说明，但不构成对本申请的限定，例如还可以分开成型，并通过焊接或粘合等方式固定连接在一起。
参见图11，图11为本申请实施例提供的一种连接件的局部结构示意图。如图11所示，连接件423上开设有与滑动件4222适配的第二连接滑槽4234，且第二连接滑槽4234的侧壁上形成有与摆臂滑槽4224适配的第一凸形条4235，第一凸形条4235在摆臂滑槽4224内滑动，以实现副摆臂422与连接件423的滑动连接。
轴盖41上开设有与摆臂转动件4221适配的第二轴盖滑槽(图中未示出)，摆臂转动件4221的至少部分位于第二轴盖滑槽，以通过第二轴盖滑槽与轴盖41转动连接，从而使得在轴盖41位置不变的情况下，连接件423能够相对轴盖41转动，实现第一机身20和第二机身30开合。
由上述内容可知，主摆臂421分别与连接件423、轴盖41转动连接，副摆臂422与连接件423滑动连接，与轴盖41转动连接，主摆臂421、副摆臂422、连接件423以及轴盖41四者构成连杆机构，控制连接件423的运动，实现转轴结构40的转动运动，进而可以使得第一机身20和第二机身30展开或折叠，即实现折叠式手机100的展开或折 叠。
需要说明的是，本申请实施例对同步机构43的数量和设置位置不作限定，本领域技术人员可以根据实际情况选择同步机构43的数量和设置位置。本申请实施例以同步机构43的数量为两个，且均匀的分设于轴盖41上为例进行说明。
参见图12，图12为本申请实施例提供的一种同步机构的结构示意图。如图12所示，同步机构43包括沿X轴方向并排设置的两个同步件431，同步件431包括同步摆臂4311和齿轮4312。两个同步件431的齿轮4312相互啮合，沿X轴方向两个同步件431的同步摆臂4311分设与相互啮合的两个齿轮4312的两侧。
继续参见图12，齿轮4312包括齿轮部43121和沿Y轴方向位于齿轮部43121两侧的两个齿轮转动部(也称为齿轮轴)43122，两个齿轮4312通过齿轮部43121相互啮合。轴盖41上设置有与齿轮转动部43122适配的转动孔(图中未示出)，两个齿轮4312的齿轮转动部43122一一对应插入转动孔中，以实现同步机构43与轴盖41转动连接。同步摆臂4311远离齿轮4312的一端的两侧壁上设有沿Y轴方向相背设置的两个第一凸柱43111，其中，两个第一凸柱43111的延伸方向相反。
参见图13，图13为本申请实施例提供的一种连接件的局部结构示意图。如图13所示，连接件423上开设有与同步摆臂4311适配的第三连接滑槽4237，且第三连接滑槽4237的侧壁局部凹陷形成与两个第一凸柱43111适配的第一凹槽4238，第一凸柱43111在第一凹槽4238内滑动转动，以实现同步机构43与连接件423的滑动转动连接。其中，该凹槽4238具有坡度，以便同步件431的滑动。
由上述内容可知，同步机构43通过凸柱43111与连接件423滑动转动配合，通过齿轮4312啮合实现第一连接件4231和第二连接件4232同步转动，保证第一连接件4231和第二连接件4232的同步性，进而保证第一机身20和第二机身30的同步性。
阻尼机构44提供阻尼力，折叠式手机100在开合过程中，可以实现开合手感。本申请实施例对阻尼机构44的数量不作限定，本领域技术人员可以根据实际情况进行设置，图1-图4以阻尼机构44的数量为三个，且三个阻尼机构44均匀的分设于轴盖41上为例进行的说明。当阻尼机构44的数量为三个时，既不会因为数量阻尼机构44的数量过多而增加成本，也不会因为阻尼机构44的数量过少而减小阻尼力，影响开合手感。
参见图14和图15，图14为本申请实施例提供的一种阻尼机构的俯视图，图15为本申请实施例提供的一种阻尼机构的立体图。如图14和图15所示，阻尼机构44包括两个销轴441、两个凹轮442、两个第一弹簧443和四个阻尼摆臂444，其中，为了区分下述示例中的阻尼机构，该示例中的阻尼机构44也可称为凸凹轮阻尼机构。两个销轴441沿X轴方向并排设置，且每个销轴441沿Y轴方向延伸。每个凹轮442具有两个沿X轴方向并排设置的两个凹轮孔4421，凹轮442通过两个凹轮孔4421套设于销轴441上，且两个凹轮442之间具有间隙。两个第一弹簧443分别套设于两个销轴441上，且分别位于两个凹轮442之间的间隙处。
阻尼摆臂444包括环形转动凸轮4441和位于环形转动凸轮4441一侧，且与转动凸轮4441固定连接的摆动件4442，摆动件4442远离转动凸轮4441的一端的两侧壁上设 有沿Y轴方向延伸的两个第二凸柱4443，其中，两个第二凸柱4443的延伸方向相反。沿Y轴方向，其中两个阻尼摆臂444分别通过各自的环形转动凸轮4441套设于其中一个销轴441上，且两个环形转动凸轮4441分别与一个凹轮442紧邻设置，且均位于凹轮442背离第一弹簧443的一侧，另两个阻尼摆臂444分别通过各自的环形转动凸轮4441套设于另一个销轴441上，且两个环形转动凸轮4441分别与一个凹轮442紧邻设置，且均位于凹轮442背离第一弹簧443的一侧。
参见图16，图16为本申请实施例提供的一种连接件的局部结构示意图。如图16所示，连接件423上开设有与阻尼摆臂444适配的第五连接滑槽4239，且第五连接滑槽4239的侧壁局部凹陷形成与两个第二凸柱4443适配的第二凹槽4240。结合图17和图18，图17为图3中QQ区域的放大图，图18为图17沿OO’方向的剖面图。如图15-图18所示，当凹轮442、第一弹簧443以及阻尼摆臂444套设于销轴441上，露出销轴441的两端，通过销轴441露出的部分与轴盖41实现固定连接，即阻尼机构44通过销轴441与轴盖41固定连接。第二凸柱4443在第二凹槽4240内滑动转动，实现阻尼机构44与连接件423的滑动转动连接。
为了保证位于同一销轴441上的两个阻尼摆臂444的同步性，两个阻尼摆臂444之间设置有连接部445，用于连接两个阻尼摆臂444。
具体的，当阻尼摆臂444与连接件423滑动转动连接，通过凸轮面(凹轮442与环形转动凸轮4441的接触面)将连接件423的转动转换成第一弹簧443的直线运动(在销轴441上沿Y轴方向移动)，从而压缩第一弹簧443，产生阻尼力。
由上述内容可知，转轴结构40采用3组阻尼机构44，三组阻尼机构44均匀的分布于轴盖41上。通过三组凸凹轮形成的阻尼机构44，提高转轴结构40阻尼力，在展开或折叠的过程中实现开合手感，且每组阻尼机构44凸轮面上的压力均匀分布，避免凸轮面压力较大，凸轮面易磨损，寿命不足等问题。此外，本示例中，阻尼机构44的结构简单，加工简单，成本低。
参见图19，图19为本申请实施例提供的转轴结构的局部结构示意图，其中，为了清楚的展示支撑门板45的位置，图19中未示出装饰门板。如图7、图9和图19所示，主摆臂421的第一主摆件4211和第二主摆件4212上均设有固定柱4213，固定柱4213的延伸方向与第一主摆件4211和第二主摆件4212弯曲的方向相反，主摆臂组中的其中一个主摆臂421的第一主摆件4211和第二主摆件4212通过固定柱4213与其中一个支撑门板45固定连接，例如与第一支撑门板451固定连接，主摆臂组中的另一个主摆臂421的第一主摆件4211和第二主摆件4212通过固定柱4213与另一个支撑门板45固定连接，例如与第二支撑门板452固定连接，以使两个支撑门板45沿X轴方向分设于轴盖41的两侧。也就是说，支撑门板45与主摆臂421固定连接，由主摆臂421的运动控制支撑门板45运动。通过第一支撑门板451和第二支撑门板452对第一显示单元10进行支撑，在展开态时，支撑第一显示单元10，防止第一显示单元10按压塌陷，在折叠态(如图20所示)时，支撑第一显示单元10的弯折区域，防止第一显示单元10塌陷。
对于支撑门板45的材料，本申请实施例对支撑门板45的材料不进行限定，本领域技术人员可以根据实际情况选择。示例性的，支撑门板45的材料包括超强高分子材料 等，当支撑门板45的材料为超强高分子材料时，支撑门板45可以一体化成型，这样，可以提高支撑门板45对第一显示单元10的承载能力，且提高对第一显示单元10支撑的可靠性，且还可以提高支撑门板45加工的可靠性和经济性。
参见图21和图22，图21为本申请实施例提供的转轴结构的局部结构示意图，图22为图21沿PP’方向的剖视图。如图21和图22所示，第一装饰门板461与副摆臂组中的其中一个副摆臂422的滑动件4222固定连接，第二装饰门板462与副摆臂组中的另一个副摆臂422的滑动件4222固定连接，副摆臂422的运动控制装饰门板46运动。
参见图23和图24，图23为本申请实施例提供的连接件的局部结构示意图，图24为本申请实施例提供的装饰门板的局部结构示意图。结合图23和图24，沿Y轴方向，装饰门板46相对的两端部分弯折，弯折的部分与未弯折的部分之间形成装饰滑槽463，相应的，沿Y轴方向，连接件423相对的两端处设置有第二凸块4241，第二凸块4241位于装饰滑槽463内。当副摆臂422的运动控制装饰门板46运动时，第二凸块4241在装饰滑槽463内滑动。第一装饰门板461和第二装饰门板462可以遮挡转动机构42、同步机构43、阻尼机构44的至少部分，以保护上述各结构。
通过对上述各个结构的具体说明可知，本申请实施例提供的转轴结构40，可以增加阻尼机构的阻尼力，且该阻尼机构不仅可以提供展平力，还可以提供闭合力，调整转轴结构40的开合手感，有利于用户体验，当应用于外折折叠式终端时，可以提升转轴结构40的寿命，避免当为单个阻尼机构44时凸轮面压力较大，磨损严重的问题，且阻尼机构44的结构简单，成本低。此外，由于支撑门板45较平整，且一体成型，提高加工可靠性和加工经济性，以及提升支撑门板45对第一显示单元10的承载能力，改善屏幕折痕等问题。此外，主摆臂421、副摆臂422以及同步机构43的结构简单，且相互配合，保证整机弯折可靠性，且减少整机重量，以及降低成本。
又一种示例中，参见图25、图26、图27和图28，图25为本申请实施例提供的又一种转轴结构的正面结构示意图，图26为本申请实施例提供的又一种转轴结构的背面结构示意图，图27为图25所示转轴结构的爆炸图，图28为图26所示转轴结构的爆炸图，需要说明的是，图25、图26、图27和图28均未示出装饰门板46，可以理解的是，在实际设置时，本申请实施例的转轴结构可以包括装饰门板46。如图25、图26、图27和图28所示，与上述示例不同的是，三个阻尼机构44中，其中一个阻尼机构44不同于另外两个阻尼机构44。具体的，三个阻尼机构44包括第一阻尼机构44a、第二阻尼机构44b和第三阻尼机构44c。沿Y轴方向，第一阻尼机构44a、第二阻尼机构44b和第三阻尼机构44c依次设置，第二阻尼机构44b位于第一阻尼机构44a和第三阻尼机构44c之间，第一阻尼机构44a和第三阻尼机构44c例如为上述示例中的凸凹轮阻尼机构，该阻尼机构的具体结构可以参考上述示例中的内容，此处不再赘述。下面对第二阻尼机构44b的具体结构进行介绍。
结合图29和图30，图29为图25中WW区域的放大图，图30为图27中RR区域的放大图。如图29和图30所示，第二阻尼机构44b包括结构相同的两个柔顺件，两个柔顺件分别为第一柔顺件44b1和第二柔顺件44b2，为了区分，该示例中的第二阻尼机 构44b也称为柔顺阻尼机构。
柔顺件包括柔顺摆臂446和柔性单元447。柔顺摆臂446包括转动轴4461和位于转动轴4461一侧的滑动部4462，滑动部4462的上表面上设置有限位块4463，且滑动部4462远离转动轴4461的一端的两侧壁上均设有沿Y轴方向延伸的两个第三凸柱4464，其中，两个第三凸柱4464的延伸方向相反(即一个向+Y方向延伸，一个向-Y方向延伸)。柔性单元447包括连接杆4471和位于连接杆4471两侧的柔性梁4472，连接杆4471上开设有限位孔44711。
轴盖41上设置有与转动轴4461适配的转动孔(图中未示出)，柔顺摆臂446的转动轴4461插入轴盖41的转动孔中，以实现第二阻尼机构44b与轴盖41转动连接。
结合图31，图31为图29沿SS’方向的剖面图，连接件423上开设有第四连接滑槽4242，且第四连接滑槽4242的侧壁局部凹陷形成与两个第三凸柱4464适配的第三凹槽4243，第三凸柱4464位于第三凹槽4243内。位于连接杆4471两侧的柔性梁4472分别固定于第四连接滑槽4242的侧壁上，即侧壁未凹陷的区域，以实现柔性单元447与连接件423的固定。此外，柔顺摆臂446的限位块4463卡接在柔性单元447的限位孔44711中，实现柔顺摆臂446和柔性单元447的固定连接。当连接件423随着第一机身20和第二机身30展开或折叠时，第三凸柱4464在第三凹槽4243内滑动转动，以实现阻尼机构44与连接件423的滑动转动连接。
具体的，在转轴结构40展开或折叠的过程中，连接件423带动柔顺摆臂446的滑动部4462滑动，使得滑动部4462驱动连接杆4471上下(垂直于Y轴方向)移动，以压缩柔性梁4472，产生阻尼力。在不同的展开或闭合角度下，第二阻尼机构44b达到稳定状态，有助于转轴结构40悬停、展开、闭合状态的保持。
示例性的，在第一机身20和第二机身30由折叠态到展开态的过程中，当第一机身20所在的平面和第二机身30所在的平面之间的夹角在预设角度之前时，柔性梁4472发生屈曲，进入闭合力区间，产生闭合力，第二阻尼机构44b达到第一个稳态，此时，如果松手，第一机身20和第二机身30就会回到期初的位置，即处于折叠态。但是，当第一机身20所在的平面和第二机身30所在的平面之间的夹角在预设角度时，柔性梁4472在闭合力区间和展开力区间之间，第二阻尼机构44b达到平衡稳态，此时，如果松手，第一机身20和第二机身30保持该位置，即第一机身20所在的平面和第二机身30所在的平面之间的夹角仍为预设角度。当第一机身20所在的平面和第二机身30所在的平面之间的夹角在预设角度之后，柔性梁4472继续发生屈曲，进入展开力区间，产生展开力，第二阻尼机构44b达到第二个稳态，实现连接件423与第二阻尼机构44b之间的相对滑动，有利于第一机身20和第二机身30的展开。
需要说明的是，本示例以转轴结构40包括三个阻尼机构44，且三个阻尼机构44包括两个凸凹轮阻尼机构和一个柔顺阻尼机构，且柔顺阻尼机构位于两个凸凹轮阻尼机构之间为例进行的说明，但不构成对本申请的限定，本领域技术人员可以根据实际情况设置。在本申请的其他可选实施例中，转轴结构40还可以包括三个柔顺阻尼机构，或者，包括两个柔顺阻尼机构和一个凸凹轮阻尼机构等，具体设置位置和连接关系，与上述各示例相同，此处不再赘述，具体可以参见上述两个示例相对应的内容。
通过对上述各个结构的具体说明可知，本申请实施例提供的转轴结构40，可以增加阻尼机构的阻尼力，且第二阻尼机构的设置，有助于转轴结构40的悬停、展开、闭合状态的保持，调整转轴结构40的开合手感，有利于用户体验。此外，当该转轴结构40应用于外折折叠式终端时，可以提升转轴结构40的寿命，避免当为单个阻尼机构44时凸轮面压力较大，磨损严重的问题，且阻尼机构44的结构简单，成本低。此外，由于支撑门板45较平整，且一体成型，提高加工可靠性和加工经济性，以及提升支撑门板45对第一显示单元10的承载能力，改善屏幕折痕等问题。此外，主摆臂421、副摆臂422以及同步机构43的结构简单，且相互配合，保证整机弯折可靠性，且减少整机重量，以及降低成本。
再一种示例中，参见图32、图33、图34和图35，图32为本申请实施例提供的又一种转轴结构的正面结构示意图，图33为本申请实施例提供的又一种转轴结构的背面结构示意图，图34为图32所示转轴结构的爆炸图，图35为图33所示转轴结构的爆炸图，需要说明的是，图32、图33、图34和图35均未示出装饰门板46，可以理解的是，在实际设置时，本申请实施例的转轴结构40可以包括装饰门板46。如图32、图33、图34和图35所示，与第一个示例不同的是，三个阻尼机构44中，其中一个阻尼机构44不同于另外两个阻尼机构44。具体的，三个阻尼机构44包括第一阻尼机构44a、第二阻尼机构44b和第三阻尼机构44c。沿Y轴方向，第一阻尼机构44a、第二阻尼机构44b和第三阻尼机构44c依次设置，第二阻尼机构44b位于第一阻尼机构44a和第三阻尼机构44c之间，第一阻尼机构44a和第三阻尼机构44c例如为上述示例中的凸凹轮阻尼机构，该阻尼机构的具体结构可以参考上述示例中的内容，此处不再赘述。下面对第二阻尼机构44b的具体结构进行介绍。
参见图36和图37，图36为本申请实施例提供的第二阻尼机构与轴盖的位置关系局部图，图37为图36沿TT’方向的剖面图。如图36和图37所示，第二阻尼机构44b包括结构相同的两个侧向件，两个侧向件分别为第一侧向件44b3和第二侧向件44b3，为了区分，该示例中的第二阻尼机构44b也称为侧向阻尼机构。
结合图38和图39，图38为本申请实施例提供的第二阻尼机构的俯视图，图39为本申请实施例提供的第二阻尼机构的立体图。如图38和图39所示，侧向件包括侧向摆臂448和侧向转动部449。侧向转动部449的截面形状例如呈弧形或近似弧形，即侧向转动部449在X轴和Y轴组成的平面上的投影呈弧形或近似弧形。
沿Y轴方向，侧向摆臂448的两侧壁上均设有第二凸形条4481，连接件423上开设有第五连接滑槽(图中未示出)，且第五连接滑槽的侧壁局部凹陷形成与两个第二凸形条4481适配的第四凹槽(图中未示出)，第二凸形条4481位于第四凹槽内。当连接件423随着第一机身20和第二机身30展开或折叠时，第二凸形条4481在第四凹槽内滑动，以实现第二阻尼机构44与连接件423的滑动连接。
轴盖41上开设有与侧向转动部449适配的第三轴盖滑槽(图中未示出)，侧向转动部449位于第三轴盖滑槽，以实现第二阻尼机构44b与轴盖41转动连接，从而使得在轴盖41位置不变的情况下，侧向摆臂448能够相对轴盖41转动。
示例性的，侧向件包括间隔设置的两个侧向转动部449，侧向摆臂448为非封闭的环形结构，即侧向摆臂448具有开口4482，开口4482设置使得侧向摆臂448具有间隔设置的两个端部4483，两个侧向转动部449分别与侧向摆臂448的两个端部4483连接，轴盖41的部分区域位于两个侧向转动部449的间隙处。
环形的侧向摆臂448内设置有支撑件4484和与支撑件4484转动连接的滚轮4485，支撑件4484上套设有至少一个第二弹簧4486，第二弹簧4486相对的两端分别与支撑件4484以及滚轮4485固定连接。位于两个侧向转动部449的间隙处的轴盖41的侧壁与滚轮4485接触。
可选的，为了更好的对第二弹簧4486进行支撑和保护，侧向摆臂448与第二弹簧4486相对的地方设置有底面4487，即在展开态时，第二弹簧4486在X轴和Y轴组成的平面上的投影位于底面4487在X轴和Y轴组成的平面上的投影。
具体的，当连接件423随着第一机身20和第二机身30展开或折叠时，连接件423带动侧向摆臂448相对于轴盖41转动，滚轮4485绕轴盖41的侧壁移动，轴盖41对滚轮4485产生挤压，进而滚轮4485压缩第二弹簧4486，相应的，滚轮4485受到载荷F，产生阻尼力。
也就是说，本申请实施例提供的三个阻尼机构中，通过凸凹轮阻尼机构提供开合手感力，通过侧向阻尼机构中的滚轮与轴盖之间的力的作用，避免仅由侧向阻尼机构仅具有展平力，无法产生闭合力的问题，提高转轴结构的展开保持力，使得折叠式终端在展开或折叠的过程的手感较好，有利于用户体验。
需要说明的是，本示例以转轴结构40包括三个阻尼机构44，且三个阻尼机构44包括两个凸凹轮阻尼机构和一个侧向阻尼机构，且侧向阻尼机构位于两个凸凹轮阻尼机构之间为例进行的说明，但不构成对本申请的限定，本领域技术人员可以根据实际情况设置。在本申请的其他可选实施例中，转轴结构40还可以包括两个侧向阻尼机构和一个凸凹轮阻尼机构，或者，一个柔顺阻尼机构和两个侧向阻尼机构，或者，两个柔顺阻尼机构和一个侧向阻尼机构，或者，一个柔顺阻尼机构、一个凸凹轮阻尼机构和一个侧向阻尼机构等，具体设置位置和连接关系，与上述各示例相同，此处不再赘述，具体可以参见上述两个示例相对应的内容。
需要说明的是，上述各示例中，为了方便连接件423的制备，连接件423可以一体成型(如第一个示例和第二个示例中的连接件423)，连接件423也可以由多个结构件组合而成(如第三个示例中的多个结构件4236)。
通过对上述各个结构的具体说明可知，本申请实施例提供的转轴结构40，可以增加阻尼机构的阻尼力，该阻尼机构既可产生展平力，也可以产生闭合力，凸凹轮阻尼机构提供转轴结构40的开合手感，侧向阻尼机构在转轴结构40处于展开态时，通过滚轮4485与轴盖41之间的作用力，提高转轴结构40的展开保持力，有利于用户体验。当该转轴结构40应用于外折折叠式终端时，可以提升转轴结构40的寿命，避免当为单个阻尼机构44时凸轮面压力较大，磨损严重的问题，且还可以避免当仅为侧向阻尼机构时，无法产生闭合力的问题。此外，由于支撑门板45较平整，且一体成型，提高加工可靠性和加工经济性，以及提升支撑门板45对第一显示单元10的承载能力，改善屏幕 折痕等问题。此外，主摆臂421、副摆臂422以及同步机构43的结构简单，且相互配合，保证整机弯折可靠性，且减少整机重量，以及降低成本。
综上，本申请实施例提供的转轴结构40，通过三组凸凹轮阻尼机构44，或者，三组柔顺阻尼机构44，或者，凸凹轮阻尼机构44和柔顺阻尼机构44的组合，或者，侧向阻尼机构44与凸凹轮阻尼机构44的组合，或者，侧向阻尼机构44与柔顺阻尼机构44的组合，增加阻尼机构的阻尼力，调整转轴结构40的开合手感，有利于用户体验。此外，由于支撑门板45较平整，且一体成型，提高加工可靠性和加工经济性，以及提升支撑门板45对第一显示单元10的承载能力，改善屏幕折痕等问题。此外，主摆臂421、副摆臂422以及同步机构43的结构简单，且相互配合，保证整机弯折可靠性，且减少整机重量，以及降低成本。
以上所述，以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (20)

  1. 一种转轴结构，其特征在于，应用于外折折叠式终端，所述外折折叠式终端包括第一机身和第二机身，以及连接所述第一机身和所述第二机身的所述转轴结构，所述转轴结构包括：
    轴盖；
    两个连接件，位于轴盖的两侧，用于分别与所述第一机身和所述第二机身连接；
    转动机构，与所述轴盖转动连接以及与所述连接件滑动和转动连接，用于控制所述连接件的运动；
    同步机构，与所述轴盖转动连接以及与所述连接件滑动和转动连接，用于同步所述两个连接件的转动；
    多个阻尼机构，所述多个阻尼机构包括凸凹轮阻尼机构和/或柔顺阻尼机构；
    所述凸凹轮阻尼机构包括销轴、凹轮、第一弹簧和至少两个阻尼摆臂，所述销轴与所述轴盖固定连接，所述凹轮和所述第一弹簧均套设于所述销轴上；所述阻尼摆臂包括套设于所述销轴上，且与所述凹轮相邻并接触的转动凸轮和位于所述转动凸轮一侧的摆动件，两个所述阻尼摆臂的所述摆动件分别与两个所述连接件滑动转动连接；当摆动件与所述连接件滑动转动时，所述第一弹簧压缩，并产生轴向的挤压力，作用于所述凹轮与所述转动凸轮之间，以产生阻尼力；
    所述柔顺阻尼机构包括两个柔顺件，所述柔顺件包括柔顺摆臂和柔性单元，两个所述柔顺件的柔性单元分别固定于两个所述连接件上，所述柔顺摆臂的一端与所述轴盖转动连接，两个所述柔顺件的柔顺摆臂的另一端分别与所述连接件滑动转动连接；所述柔性单元包括连接杆和柔性梁，所述柔顺摆臂与所述连接杆固定连接；当柔顺摆臂的另一端与所述连接件滑动转动时，带动所述连接杆移动，所述柔性梁压缩，以产生阻尼力。
  2. 根据权利要求1所述的转轴结构，其特征在于，多个所述阻尼机构还包括侧向阻尼机构；所述侧向阻尼机构包括两个侧向件，所述侧向件包括侧向摆臂和侧向转动部，所述侧向转动部与所述轴盖转动连接，两个所述侧向件的侧向摆臂分别与两个所述连接件滑动连接；
    所述侧向摆臂内设有支撑件和与所述支撑件转动连接的滚轮，所述支撑件上套设有至少一个第二弹簧，所述第二弹簧相对的两端分别与所述支撑件和所述滚轮固定连接；当两个连接件所在平面的角度位于预设角度范围内时，所述滚轮与所述轴盖的侧壁接触，所述轴盖对所述滚轮产生挤压，所述第二弹簧压缩，以产生阻尼力。
  3. 根据权利要求1所述的转轴结构，其特征在于，所述转动机构包括主摆臂组；所述主摆臂组包括分设于所述轴盖两侧的两个主摆臂；
    所述主摆臂包括固定连接的第一主摆件和第二主摆件，所述连接件上开设有与所述第二主摆件适配的第一连接滑槽，所述主摆臂通过所述第二主摆件与所述连接件转动连接，所述轴盖上开设有与所述第一主摆件适配的第一轴盖滑槽，所述主摆臂通过所述第 一主摆件与所述轴盖转动连接，所述轴盖的位置不变，所述主摆臂组中的两个主摆臂的所述第一主摆件相对与所述轴盖转动，以通过所述主摆臂组中的两个主摆臂的所述第二主摆件带动两个所述连接件转动。
  4. 根据权利要求3所述的转轴结构，其特征在于，所述第一主摆件和所述第二主摆件的截面形状均呈弧形。
  5. 根据权利要求3所述的转轴结构，其特征在于，所述转动机构还包括副摆臂组；所述副摆臂组包括分设于所述轴盖两侧的两个副摆臂，所述副摆臂包括摆臂转动件和滑动件；所述摆臂转动件固定于所述滑动件的侧壁上，所述滑动件上设置有第一凸块，所述第一凸块与所述滑动件之间形成至少一个摆臂滑槽；
    所述连接件上开设有与所述滑动件适配的第二连接滑槽，且所述第二连接滑槽的侧壁上形成有与所述摆臂滑槽适配的第一凸形条，所述副摆臂通过所述摆臂滑槽与所述连接件的滑动连接，所述轴盖上开设有与所述摆臂转动件适配的第二轴盖滑槽，所述副摆臂通过所述摆臂转动件与所述轴盖转动连接，所述轴盖的位置不变，所述副摆臂组中的两个副摆臂的所述摆臂转动件相对与所述轴盖转动，以通过所述副摆臂组中的两个副摆臂的所述滑动件带动两个所述连接件转动。
  6. 根据权利要求1所述的转轴结构，其特征在于，所述同步机构包括两个同步件，所述同步件包括同步摆臂和齿轮，两个所述同步件的齿轮相互啮合，两个所述同步件的同步摆臂分设与相互啮合的两个所述齿轮的两侧；
    所述齿轮通过齿轮轴与所述轴盖转动连接，所述同步摆臂远离所述齿轮的一端的两侧壁上设有第一凸柱；
    所述连接件上开设有与所述同步摆臂适配的第三连接滑槽，且所述第三连接滑槽的侧壁局部凹陷形成与所述第一凸柱适配的第一凹槽，所述第一凸柱在所述第一凹槽内滑动转动，以使所述同步机构与所述连接件滑动转动连接。
  7. 根据权利要求1-6任一项所述的转轴结构，其特征在于，所述折叠式终端还包括柔性屏，位于所述第一机身、所述转轴结构和所述第二机身的一侧；
    所述转轴结构还包括支撑门板，与所述转动机构固定连接，并跟随转动机构的转动而转动，所述支撑门板用于在对所述柔性屏进行支撑。
  8. 根据权利要求7所述的转轴结构，其特征在于，当所述主摆臂包括第一主摆件和第二主摆件时，所述第一主摆件和所述第二主摆件均设有固定柱，所述主摆臂通过所述固定柱与所述支撑门板连接。
  9. 根据权利要求7所述的转轴结构，其特征在于，所述支撑门板的材料包括超强高分子材料，所述支撑门板一体成型。
  10. 根据权利要求1-6任一项所述的转轴结构，其特征在于，所述转轴结构还包括装饰门板，与所述转动机构固定连接，并跟随转动机构的转动而转动，所述装饰门板用于在对所述转动机构、所述同步机构和/或所述阻尼机构进行遮挡。
  11. 根据权利要求10所述的转轴结构，其特征在于，当所述副摆臂包括摆臂转动件和滑动件时，所述装饰门板与所述滑动件背离所述第一凸块的一侧固定连接，以使所述装饰门板与所述副摆臂固定连接；
    所述装饰门板相对的两端部分弯折，所述装饰门板弯折的部分与所述装饰门板未弯折的部分之间形成装饰滑槽，所述连接件相对的两端处设置有第二凸块，所述第二凸块位于所述装饰滑槽内，所述装饰门板通过所述装饰滑槽与所述连接件滑动连接。
  12. 根据权利要求10所述的转轴结构，其特征在于，所述装饰门板的材料包括超强高分子材料，所述装饰门板一体成型。
  13. 根据权利要求1所述的转轴结构，其特征在于，所述销轴、所述凹轮和所述第一弹簧的数量均为两个，所述阻尼摆臂的数量为四个；
    两个所述销轴沿第一方向并排设置，且所述销轴沿第二方向延伸，所述凹轮具有两个凹轮孔，两个所述凹轮孔沿所述第一方向并排设置，所述凹轮通过两个所述凹轮孔分别套设于两个所述销轴上，且两个所述凹轮之间具有间隙，两个所述第一弹簧分别套设于两个所述销轴上，且分别位于两个所述凹轮之间的间隙处，其中两个所述阻尼摆臂的转动凸轮与其中一个凹轮紧邻设置，且沿所述第二方向，位于所述凹轮背离所述第一弹簧的一侧，另两个所述阻尼摆臂的转动凸轮与另一个凹轮紧邻设置，且沿所述第二方向，位于所述凹轮背离所述第一弹簧的一侧；
    所述摆动件远离所述转动凸轮的一端的两侧壁上设有第二凸柱，所述连接件上开设有与所述阻尼摆臂适配的第五连接滑槽，且所述第五连接滑槽的侧壁局部凹陷形成与所述第二凸柱适配的第二凹槽，所述第二凸柱在所述第二凹槽内滑动转动，以使所述阻尼机构与所述连接件滑动转动连接；
    其中，所述第一方向为所述第一机身指向所述第二机身的方向，第二方向为转轴结构的轴向方向。
  14. 根据权利要求13所述的转轴结构，其特征在于，位于同一所述销轴上的两个阻尼摆臂之间设置有连接部，所述连接部的两端分别与两个所述阻尼摆臂固定连接。
  15. 根据权利要求1所述的转轴结构，其特征在于，所述柔顺摆臂包括转动轴和位于所述转动轴一侧的滑动部，所述滑动部上设置有限位块，且所述滑动部远离所述转动轴的一端的两侧壁上均设有第三凸柱；
    所述柔性梁位于所述连接杆的两侧，所述连接杆上开设有限位孔；
    所述轴盖上设置有与所述转动轴适配的转动孔，以使所述柔顺摆臂与所述轴盖转动连接；所述连接件上开设有第四连接滑槽，且所述第四连接滑槽的侧壁局部凹陷形成与所述第三凸柱适配的第三凹槽，所述第三凸柱在所述第三凹槽内滑动转动，以使所述柔顺摆臂与所述连接件滑动转动连接；
    位于所述连接杆两侧的所述柔性梁分别固定于所述第四连接滑槽未凹陷的侧壁上，所述柔顺摆臂的限位块卡接在所述连接杆的限位孔中，以使所述柔顺摆臂和所述连接杆固定连接。
  16. 根据权利要求2所述的转轴结构，其特征在于，所述侧向摆臂的两侧壁上设有第二凸形条，所述连接件上开设有第五连接滑槽，且所述第五连接滑槽的侧壁局部凹陷形成与所述第二凸形条适配的第四凹槽，所述第二凸形条在所述第四凹槽内滑动，以使所述侧向摆臂与所述连接件滑动连接；
    所述轴盖上开设有与所述侧向转动部适配的第三轴盖滑槽，所述侧向件通过所述侧向转动部与所述轴盖转动连接；
    所述侧向转动部的数量为两个，两个所述侧向转动部间隔设置；
    所述侧向摆臂为具有开口的环形结构，两个所述侧向转动部分别所述侧向摆臂固定连接，且位于所述开口的两侧；
    所述支撑件位于所述环形结构内，所述滚轮位于两个侧向转动部的间隙处。
  17. 根据权利要求1所述的转轴结构，其特征在于，所述阻尼机构的数量为三个。
  18. 根据权利要求17所述的转轴结构，其特征在于，三个所述阻尼机构均为所述凸凹轮阻尼机构；或者，三个所述阻尼机构均为所述柔顺阻尼机构；或者，三个所述阻尼机构中至少一个为所述凸凹轮阻尼机构，至少一个为所述柔顺阻尼机构。
  19. 根据权利要求2所述的转轴结构，其特征在于，所述阻尼机构的数量为三个；
    三个所述阻尼机构中至少一个为所述凸凹轮阻尼机构，至少一个为所述侧向阻尼机构；或者，
    三个所述阻尼机构中至少一个为所述柔顺阻尼机构，至少一个为所述侧向阻尼机构。
  20. 一种折叠式终端，其特征在于，所述折叠式终端为外折折叠式终端，所述外折折叠式终端包括权利要求1-19任一项所述的转轴结构。
PCT/CN2023/132197 2023-02-16 2023-11-17 转轴结构及折叠式终端 Ceased WO2024169288A1 (zh)

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