WO2022222653A1 - 折叠机构、壳体组件以及内折叠式电子设备 - Google Patents

折叠机构、壳体组件以及内折叠式电子设备 Download PDF

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Publication number
WO2022222653A1
WO2022222653A1 PCT/CN2022/081285 CN2022081285W WO2022222653A1 WO 2022222653 A1 WO2022222653 A1 WO 2022222653A1 CN 2022081285 W CN2022081285 W CN 2022081285W WO 2022222653 A1 WO2022222653 A1 WO 2022222653A1
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WO
WIPO (PCT)
Prior art keywords
gear
group
casing
housing
guide
Prior art date
Application number
PCT/CN2022/081285
Other languages
English (en)
French (fr)
Inventor
许少鹏
王亚峰
刘泰洋
谭江洪
田竞
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2022222653A1 publication Critical patent/WO2022222653A1/zh

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    • 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
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel

Definitions

  • the present application relates to the technical field of electronic devices, and in particular, to a folding mechanism, a housing assembly, and an inner-foldable electronic device.
  • foldable electronic devices such as foldable mobile phones
  • foldable mobile phones usually include an inner foldable mobile phone and an outer foldable mobile phone.
  • the traditional inner foldable mobile phone usually includes a first casing, a second casing and a folding mechanism pivotally connected between the first casing and the second casing, and the first casing, the folding mechanism and the second casing are covered.
  • the embodiments of the present application provide a folding mechanism, a housing assembly, and an inner folding electronic device.
  • an embodiment of the present application provides a folding mechanism, which is applied to an internally foldable electronic device.
  • the internally foldable electronic device includes a housing assembly and a flexible screen module.
  • the flexible screen module is arranged on the housing assembly, and the housing assembly It includes a relatively rotatable first shell and a second shell.
  • the folding mechanism includes a bracket, a first bearing group, a second bearing group, a transmission assembly and a linkage assembly. The bracket is suitable for connecting the first shell and the second shell.
  • At least one of the first carrying group is suitable for being rotatably connected to the first housing
  • the second carrying group is suitable for being rotatably connected to the second housing
  • the transmission component is arranged on the bracket
  • the linkage component is connected to the transmission component and the between the first bearing group and connected between the transmission assembly and the second bearing group
  • the transmission assembly is configured to drive the first bearing group and the second bearing group to rotate relative to each other through the linkage assembly when the external force acts, so that the first bearing group
  • the group and the second carrying group are selectively in a parallel flat state or a mutually angled retracted state. In the retracted state, the first carrying group and the second carrying group are jointly defined and formed for partially accommodating the flexible screen mold. Set of empty positions.
  • an embodiment of the present application provides a casing assembly, the casing assembly includes a first casing, a second casing and the above-mentioned folding mechanism, the first bearing group is rotatably connected to the first casing, the second casing The carrying group is rotatably connected to the second casing, and the bracket is rotatably connected between the first casing and the second casing, and is opposite to the first carrying group and the second carrying group.
  • embodiments of the present application further provide an internally foldable electronic device, including the above-mentioned housing assembly and a flexible screen module, wherein the flexible screen module is disposed on the first housing, the folding mechanism and the second housing.
  • FIG. 1 is a schematic diagram of an electronic device provided by an embodiment of the present application when it is unfolded at a certain angle.
  • FIG. 2 is a corresponding schematic diagram when the electronic device shown in FIG. 1 is substantially flattened.
  • FIG. 3 is a corresponding schematic diagram when the housing assembly of the electronic device shown in FIG. 1 is substantially flattened.
  • FIG. 4 is a partial cross-sectional schematic diagram of the flexible screen module of the electronic device shown in FIG. 1 .
  • FIG. 5 is a schematic side projection diagram corresponding to when the electronic device shown in FIG. 1 is in a stacked shape.
  • FIG. 6 is an enlarged schematic diagram of a partial structure of the electronic device of FIG. 2 .
  • FIG. 7 is a schematic structural diagram of the bracket, the first gear, the second gear, the intermediate gear set and the damping member in a disassembled state in the housing assembly of the electronic device shown in FIG. 6 .
  • FIG. 8 is a schematic partial structural diagram corresponding to when the damping member in the housing assembly shown in FIG. 7 is assembled on the rotating shaft of the bracket.
  • FIG. 9 is a schematic partial structural diagram corresponding to the assembled first gear, the rotating shaft and the damping member of the electronic device shown in FIG. 7 .
  • FIG. 10 is a partial structural schematic diagram of the housing assembly of the electronic device shown in FIG. 1 .
  • FIG. 11 is a schematic structural diagram of the first guide rack and the first elastic member in the housing assembly shown in FIG. 10 after assembly.
  • FIG. 12 is a schematic structural diagram of the second guide rack and the second elastic member in the housing assembly shown in FIG. 10 after assembly.
  • FIG. 13 is a partial schematic view of the electronic device shown in FIG. 2 in a substantially flattened shape.
  • FIG. 14 is a partial schematic view of the electronic device shown in FIG. 1 when it is unfolded at a certain angle.
  • FIG. 15 is a partial schematic diagram of a side projection when the electronic device shown in FIG. 4 is unfolded at a certain angle.
  • “electronic equipment” includes, but is not limited to, is set to be connected via wired lines (eg, via a public switched telephone network (PSTN), digital Subscriber Line (DSL), digital cable, direct cable connection, and/or another data connection/network) and/or via (eg, for cellular networks, wireless local area networks (WLAN), digital television networks such as DVB-H networks, A satellite network, an AM-FM broadcast transmitter, and/or another communication terminal's) wireless interface to receive/transmit communication signals.
  • PSTN public switched telephone network
  • DSL digital Subscriber Line
  • WLAN wireless local area networks
  • DVB-H networks digital television networks
  • a satellite network an AM-FM broadcast transmitter, and/or another communication terminal's
  • a communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", a “wireless terminal” and/or a “mobile terminal”.
  • mobile terminals electronic devices include, but are not limited to, satellite or cellular telephones; Personal Communication System (PCS) terminals that may combine cellular radio telephones with data processing, facsimile, and data communication capabilities; may include radio telephones, pagers, Internet/Intranet PDAs with networking access, web browser, memo pad, calendar, and/or global positioning system (GPS) receiver; and conventional laptop and/or palm receivers or other electronic devices including radiotelephone transceivers.
  • PCS Personal Communication System
  • GPS global positioning system
  • an embodiment of the present application provides an internally foldable electronic device 500 .
  • the electronic device 500 may be, but is not limited to, electronic devices such as mobile phones, tablet computers, and smart watches.
  • the electronic device 500 of the present embodiment will be described by taking a mobile phone as an example.
  • the inner foldable electronic device 500 includes a casing assembly 400 and a flexible screen module 300 .
  • the flexible screen module 300 is disposed in the casing assembly 400
  • the casing assembly 400 includes a first casing 110 , a second casing 120 and a folding mechanism 200 .
  • the folding mechanism 200 is connected between the first casing 110 and the second casing 120 .
  • “internally foldable” means that during the folding process of the casing assembly 400, the flexible screen modules 300 located on the same side of the first casing 110 and the second casing 120 can be close to each other, and the flexible screen modules 300 can be more It is hidden between the first casing 110 and the second casing 120 .
  • the flexible screen module 300 is disposed on the first casing 110 , the folding mechanism 200 and the second casing 120 .
  • the flexible screen module 300 can be relatively bent or unfolded through the housing assembly 400 and the folding mechanism 200 .
  • the flexible screen module 300 may include a display function layer 311 and a buffer layer 312, the display function layer 311 has the function of bending deformation, the display function layer 311 has the display function, or It has both display and touch functions.
  • the buffer layer 312 is disposed between the folding mechanism 200 and the display function layer 311 . Further, the buffer layer 312 may be continuously laid on the first casing 110 , the folding mechanism 200 and the second casing 120 .
  • the buffer layer 312 can be made of a material with deformation function, such as foam, silicone, adhesive layer or elastic rubber, etc.
  • the buffer layer 312 is used to release the bending area of the display function layer 311 during the bending process of the display function layer 311 This reduces the risk of creases in the display function layer 311 and prevents the folding mechanism 200 from pulling or squeezing the bending area of the display function layer 311 , thereby effectively extending the service life of the flexible screen module 300 .
  • the flexible screen module 300 may further include a support layer 313 , the support layer 313 may be disposed between the display function layer 311 and the buffer layer 312 , and the support layer 313 may be composed of high toughness and
  • the support layer 313 is made of a material with a lower elastic modulus, such as polyethylene terephthalate (PET or PETP) or other polymer materials, and the support layer 313 can provide relatively hard support for the display function layer 311 .
  • PET or PETP polyethylene terephthalate
  • the ability to resist puncture is improved, and structures such as burrs or protrusions of structures below the flexible screen module 300 (eg, the surface of the casing or electronic devices in the casing) are prevented from piercing the display functional layer 311 .
  • the flexible screen module 300 may further include a protective layer 314, the protective layer 314 is disposed on the surface of the display function layer 311 away from the buffer layer 312, and the protective layer 314 may be made of a flexible material, For example, flexible plastic or flexible glass.
  • the protective layer 314 By providing the protective layer 314, the surface of the display function layer 311 can be prevented from being scratched.
  • the flexible screen module 300 can be hidden between the first casing 110 and the second casing 120 to protect the flexible screen module 300 .
  • the first casing 110 may be a substantially rectangular casing.
  • the first casing 110 includes a first supporting surface 113 for supporting the flexible screen module 300 .
  • a support surface 113 may include a flat surface structure, so that one end of the flexible screen module 300 can be flatly laid on the first support surface 113 .
  • the structure and size of the second casing 120 and the first casing 110 may be substantially the same, and the second casing 120 may also be a substantially rectangular casing.
  • the first casing 110 and the second casing 120 It can be a hard shell or a soft shell.
  • the first shell 110 and the second shell 120 can be made of metal material, plastic material, or made of metal material and plastic material.
  • both the second casing 120 and the first casing 110 may be rigid casings, so that the first casing 110 and the second casing 120 provide certain rigid support and protection for the flexible screen module 300 .
  • Each of the second case 120 and the first case 110 may include a long side 111 and a short side 112 , and the long side 111 and the short side 112 may be substantially perpendicular, wherein the length of the long side 111 is greater than that of the short side 111 Regarding the length of the side 112 , the short side 112 of the second casing 120 and the short side 112 of the first casing 110 may be substantially flush, that is, the short side 112 of the second casing 120 and the first casing 110
  • the short side 112 of the electronic device 500 is generally located on the same plane as the end surface of the electronic device 500 .
  • the second housing 120 includes a second support surface 121 for supporting the flexible screen module 300 , and the second support surface 121 may include a flat surface structure, so that the flexible screen module The other end of the 300 can be laid flat on the second support surface 121 , and the first support surface 113 and the second support surface 121 respectively support the two ends of the flexible screen module 300 .
  • the included angle between the first supporting surface 113 and the second supporting surface 121 is greater than 0° and less than 180°. Therefore, when the first casing 110 and the second casing 120 are in a semi-expanded state, the angle formed between the first supporting surface 113 and the second supporting surface 121 is approximately 90°, at this time, the electronic device 500 can be used as a notebook When using a computer, the electronic device 500 can be stably placed on the desktop.
  • the first supporting surface 113 and the second supporting surface 121 can be substantially flush, that is, both are located substantially at the same level
  • the angle formed between the first support surface 113 and the second support surface 121 is approximately 180°
  • the flexible screen module 300 laid on the first support surface 113 and the second support surface 113 can be at a larger angle.
  • the flexible screen module 300 can be displayed in full screen at 180°.
  • the electronic device 500 can be used as a tablet computer.
  • the included angle between the first supporting surface 113 and the second supporting surface 121 may be approximately 0°, or the first The opening that may form an angle between the support surface 113 and the second support surface 121 may face the bending area between the first shell 110 and the second shell 120 .
  • the first support surface 113 and the second support surface The included angle between 121 may be less than 0°.
  • first casing 110 and the second casing 120 can be rotated to different deployment angles, and the electronic device 500 can realize the function of 0-180° graded adjustment.
  • the first casing 110 and the second casing 120 The folding mechanism 200 may be hinged respectively, or the folding mechanism 200 may be a flexible structure or a foldable structure, so that the first housing 110 and the second housing 120 can be rotated.
  • the folding mechanism 200 is disposed between the first casing 110 and the second casing 120 , and the folding mechanism 200 can be flattened or folded with the rotation of the first casing 110 or the second casing 120 ,
  • the folding mechanism 200 can provide effective support for the part of the supporting flexible screen module 300 located between the two ends.
  • the opposite sides of the folding mechanism 200 are respectively connected to the first casing 110 and the second casing 120 .
  • the folding mechanism 200 utilizes its own rotatable characteristics, so that the first casing 110 can be turned over relative to the second casing 120, so that the first casing 110 is in a superimposed shape, or in an angle shape, or in a relative to the second casing 120. Expanded, or flattened.
  • the folding mechanism 200 may include a first carrying group 210 , a second carrying group 220 , a transmission assembly 230 , a linkage assembly 240 and a bracket 250 , and the bracket 250 is suitable for connecting the first casing 110 and the second casing
  • the first bearing group 210 is adapted to be rotatably connected to the first housing 110
  • the second bearing set 220 is adapted to be rotatably connected to the second housing 120
  • the transmission assembly 230 is connected to the linkage assembly 240 forms a transmission relationship with the first bearing group 210 and the second bearing group 220 respectively, so as to drive the first bearing group 210 and the second bearing group 220 to rotate relative to each other under the action of an external force.
  • the bracket 250 can be connected between the first casing 110 and the second casing 120 , so that the first casing 110 and the second casing 120 can be selectively folded or unfolded with each other.
  • the bracket 250 can provide support and protection for the transmission assembly 230 and the linkage assembly 240 .
  • the bracket 250 can also play a role of protecting and covering the internal components and circuits of the electronic device 500 .
  • the bracket 250 may be a rigid shell, and two ends of the bracket 250 are pivotally connected to the first shell 110 and the second shell 120 respectively, so that the first shell 110 and the second shell 120 can be respectively It rotates relative to the bracket 250 around a rotation axis, so that the first casing 110 and the second casing 120 can be selectively flattened or overlapped with each other.
  • the bracket 250 may be a flexible shell, and the bracket 250 has the property of being bendable and deformable. Two ends of the bracket 250 are respectively connected to the first shell 110 and the second shell 120 .
  • the bracket 250 and the first shell The body 110 and the second shell 120 can be integrally formed. Under the action of external force, the bracket 250 can be bent and deformed. The mutual folding or unfolding of the first casing 110 and the second casing 120 is realized.
  • the bracket 250 may include a rigid portion and two flexible portions, the two flexible portions may be located at two ends of the rigid portion, respectively, and the rigid portion may provide support for structures such as the transmission assembly 230 and the linkage assembly 240,
  • the first shell 110 and the second shell 120 are respectively connected with two flexible parts. Under the action of external force, the first shell 110 and the second shell 120 can be rotated relative to the hard part through the flexible parts to selectively fold or unfold each other.
  • the bracket 250 may include a rigid part and two foldable parts
  • the foldable part may include a plurality of foldable units connected in sequence
  • two adjacent foldable units may be unfolded or folded with each other
  • the two folded parts may be connected respectively At both ends of the hard part, the first shell 110 and the second shell 120 are respectively connected with the two foldable parts.
  • the two casings 120 can respectively drive the two folded parts to bend relative to the rigid part, so that the first casing 110 and the second casing 120 are flattened or overlapped with each other.
  • the first bearing group 210 is rotatably connected to the first casing 110
  • the second bearing group 220 is rotatably connected to the second casing 120
  • the bracket 250 is connected to the first casing 110 .
  • a carrying group 210 and a second carrying group 220 are substantially opposite to each other, so as to form an installation space 251 between the first carrying group 210 and the second carrying group 220 and the bracket 250 , and the installation space 251 can be used to install the linkage assembly 240 and the transmission assembly 230
  • the installation space 251 can also provide installation space for the flexible circuit board or the circuit.
  • the transmission assembly 230 drives the first bearing group 210 and the second bearing group 220 to rotate relative to each other through the linkage assembly 240 when the external force acts, so that the first bearing group 210 and the second bearing group 220 can be selectively placed in a side-by-side flattened state (eg, Figure 3) or the folded state at an angle to each other (as shown in Figure 4).
  • the first support surface 113 , the surface of the first bearing group 210 , the surface of the second bearing group 220 , and the second support surface 121 may all be substantially in the same plane, so as to jointly form a pair of flexible screen modules 300 Provide a flat support, so that the display surface of the flexible screen module 300 can be unfolded into a plane.
  • the flexible screen module 300 is in a large full-screen working state, and the surfaces of the first carrying group 210 and the second carrying group 220 can A flat and effective support is formed for the bending area of the flexible screen module 300 (referring to the area where the flexible screen module 300 is bent when folded), so that the bending area of the flattened flexible screen module 300 can be maintained. Flattening, avoiding the occurrence of lodging or creases in the bending area, and improving the user experience.
  • the first casing 110 and the second casing 120 when the first casing 110 and the second casing 120 are in a superimposed shape, the first casing 110 and the second casing 120 can be fastened together.
  • the two carrying groups 220 When the two carrying groups 220 are in an angularly folded state, the first carrying group 210 and the second carrying group 220 together define an empty compartment 212 for partially accommodating the flexible screen module 300 .
  • the ends of the first carrying group 210 and the second carrying group 220 that are close to each other are all facing the side away from the flexible screen module 300 . Therefore, a partial space is vacated on one side of the first carrying group 210 and the second carrying group 220 adjacent to the flexible display module 300 to form an empty space 212, and the shape of the empty space 212 can match the bending of the flexible screen module 300.
  • the shape formed by the folded portion is adapted, and the first carrying group 210 and the second carrying group 220 can support the bending area of the flexible screen module 300 at the same time.
  • the flexible screen module 300 can be in a state where the curling angle is ⁇ 0°.
  • An angle is formed between the surfaces of the sides, wherein the opening direction of the angle faces the bending area of the flexible screen module 300 .
  • the first carrying group 210 includes a plurality of first carrying units 211 that are rotatably connected in sequence, and the first carrying units 211 may be rectangular sheet structures.
  • the length of the first bearing unit 211 may be substantially the same as the length of the long side 111 .
  • two adjacent first bearing units 211 are rotatably connected, and when two adjacent first bearing units 211 are driven to rotate mutually by an external force, the connection between the two adjacent first bearing units 211 may face
  • an included angle of less than 180° is formed between two adjacent first bearing units 211 , so that the shape jointly formed by the plurality of first bearing units 211 can match the outer contour formed by the bending area of the flexible screen module 300 .
  • the plurality of first bearing units 211 can fit the outer contour of the flexible screen module 300, so that the plurality of first bearing units 211 can not only support the outer contour of the flexible screen module 300, but also avoid the flexible screen module 300.
  • the bending area of the group 300 is over-folded, and the flexible screen module 300 can be prevented from being squeezed.
  • the two end surfaces of the first carrying unit 211 can be kept flush with the short side edge 112 of the first housing 110, so as to prevent the two end surfaces of the first carrying unit 211 from protruding from the short side edge 112. , the damage to the first bearing unit 211 due to the impact of the ground is effectively avoided.
  • the length of the first bearing unit 211 may also be smaller than the length of the long side 111 .
  • first bearing units 211 can be hinged by connecting parts such as pins, and each first bearing unit 211 includes a first bearing plane 2111, which is used to support the flexible screen mold In the bending area of the group 300, the plurality of first bearing units 211 can be selectively placed in a parallel flattened state (as shown in FIG. 3) or an angled collapsed state (as shown in FIG. 4) under the driving of the linkage assembly 240. shown).
  • first bearing units 211 when a plurality of first bearing units 211 are in a parallel flat state, two adjacent first bearing planes 2111 can be in a flush state, that is, the two are substantially located on the same plane;
  • a carrying unit 211 is in an angled folded state, the included angle formed between two adjacent first carrying units 211 is less than 180°.
  • the structure of the second carrying group 220 may be substantially the same as that of the first carrying group 210 , and the second carrying group 220 includes a plurality of The carrying unit 221 and the second carrying unit 221 may be a rectangular sheet structure, and the second carrying unit 221 may extend substantially parallel to the long side 111 and may be approximately the same length as the long side 111 .
  • the connection between the two adjacent second bearing groups 220 can face the bracket 250 moves, and an included angle of less than 180° is formed between two adjacent second bearing groups 220, so that the shape jointly formed by the plurality of second bearing groups 220 can match the outer contour formed by the bending area of the flexible screen module 300.
  • the plurality of second carrying groups 220 can fit the outer contour of the flexible screen module 300, so that the plurality of second carrying groups 220 can not only support the outer contour of the flexible screen module 300, but also avoid the flexible screen module.
  • the bending area of 300 is over-folded, and the flexible screen module 300 can be prevented from being squeezed.
  • the length of the second carrying unit 221 may be approximately the same as the length of the long side 111, and the two end surfaces of each second carrying unit 221 may be flush with the short side 112 of the second housing 120, so that The second bearing unit 221 is prevented from protruding outward from the short side 112 , and when falling, the second bearing unit 221 is effectively prevented from being damaged by the impact of the ground.
  • Two adjacent second bearing units 221 can be hinged by connecting parts such as pins, each second bearing unit 221 includes a second bearing plane 2211 , and a plurality of second bearing units 221 can be selectively driven by the linkage assembly 240
  • the ground is in a parallel flat state (as shown in Figure 3) or an angled collapsed state (as shown in Figure 4).
  • the number of the first bearing units 211 may be the same as the number of the second bearing units 221 , and the first bearing group 210 and the second bearing group 220 are about a symmetrical plane 260 (eg 3) are symmetrically distributed, and the symmetrical plane 260 may be a plane jointly defined by the symmetrical centerline of the folding mechanism 200 and the symmetrical centerline between the first carrying group 210 and the first carrying group 220.
  • a symmetrical plane 260 eg 3
  • the symmetrical plane 260 may be a plane jointly defined by the symmetrical centerline of the folding mechanism 200 and the symmetrical centerline between the first carrying group 210 and the first carrying group 220.
  • the first carrying group 210 and the second carrying group 220 can rotate symmetrically with respect to the symmetrical plane 260 and move closer to each other, and at the same time, the first casing 110 and the second casing 120 can also rotate symmetrically about the symmetrical plane 260 .
  • the end face of the first casing 110 away from the second casing 120 and the end face of the second casing 120 away from the first casing 110 may be substantially flush, so that the end face of the first casing 110 away from the first casing 110
  • the flexible screen module 300 on the same side of the first shell 110 and the second shell 120 can basically be completely hidden between the first shell 110 and the second shell 120 to prevent the flexible screen module 300 from being exposed and effectively prevent the flexible screen module 300 from being exposed. It is protected to reduce or avoid the impact and wear on the flexible screen module 300 from the outside world.
  • the number of the first bearing units 211 and the second bearing units 221 may be odd or even, for example, the numbers of the first bearing units 211 and the second bearing units 221 may be 1, 3, 5, or 7 Or an odd number such as 9, or an even number such as 2, 4, 6, 8, or 10.
  • the number of the first bearing unit 211 and the number of the second bearing unit 221 is not specifically limited here, and may be adjusted according to actual needs.
  • the number of the first bearing units 211 and the number of the second bearing units 221 may be different.
  • the number of the first bearing units 211 may be more than the number of the second bearing units 221 , or may be less than the number of the second bearing units 221 .
  • the number of the second carrying units 221 may be different.
  • the first supporting surface 113 , the plurality of first bearing planes 2111 , the plurality of second bearing planes 2211 and the second supporting plane 121 may all be located on the same plane , so as to provide a flat and effective support for the flexible screen module 300, so that the flexible screen module 300 can be flattened on the same plane more smoothly.
  • the bending area of the flexible screen module 300 is bent to form an arc surface, and the plurality of first bearing planes 2111 and the plurality of The second bearing plane 2211 roughly forms an arc-shaped support surface that matches the arc surface, so as to effectively support and protect the bending area of the flexible screen module 300 .
  • an included angle of less than 180° is formed between two adjacent first bearing planes 2111 and two adjacent second bearing planes 2211 .
  • An included angle of less than 180° is also formed between the bearing plane 2111 and its adjacent second bearing plane 2211 , and the plurality of first bearing planes 2111 and the plurality of second bearing planes 2211 can substantially enclose a U-shaped empty bin 212 .
  • the first bearing plane 2111 and the plurality of second bearing planes 2211 can surround the outer side of the bending area of the flexible screen module 300 and form an effective support for it, so as to prevent the flexible screen module 300 from failing due to over-folding in the bending area In this case, the tensile/compressive stress on the bending area is reduced or avoided, so that the flexible screen module 300 can be effectively protected.
  • one of the plurality of first bearing units 211 is pivotally connected to the first housing 110
  • one of the plurality of second bearing units 221 is pivotally connected to the second In the housing 120
  • one of the plurality of first bearing units 211 that is far away from the first housing 110 may abut with the adjacent second bearing unit 221, or be connected in a pivotal manner.
  • the transmission assembly 230 is located in the installation space 251 , the transmission assembly 230 is disposed on the bracket 250 , and the transmission assembly 230 is configured to drive the first bearing through the linkage assembly 240 when an external force acts
  • the group 210 and the second carrying group 220 are rotated relative to each other, so that the first carrying group 210 and the second carrying group 220 are selectively in a parallel flattened state or a mutually angled collapsed state.
  • the transmission assembly 230 forms a transmission with the plurality of first bearing units 211 and the plurality of second bearing units 221 through the linkage assembly 240 .
  • the transmission assembly 230 may include a first transmission group 231 and a second transmission group 232 , the first transmission group 231 and the second transmission group 232 are both disposed in the installation space 251 , the first transmission group 231 and the second transmission group 232
  • the transmission group 232 is in driving cooperation with the first bearing group 210 and the second bearing group 220 respectively.
  • the first transmission group 231 and the second transmission group 232 drive the first bearing group 210 and the second bearing group 220 to rotate, respectively. So that the first bearing group 210 and the second bearing group 220 are selectively in a side-by-side flattened state or a mutually angled collapsed state.
  • the first transmission group 231 includes a first gear 2311 , the first gear 2311 is rotatably connected to the bracket 250 , the second transmission group 232 includes a second gear 2321 , and the second gear 2321 is rotatably connected to the bracket 250 , wherein the rotation axis of the second gear 2321 may be substantially parallel to the rotation axis of the first gear 2311 .
  • the first gear 2311 and the second gear 2321 rotate when the external force acts, so as to drive the linkage assembly 240 to rotate with the first bearing group 210 and the second bearing group 220, thereby driving the first bearing group 210 and the second bearing group 220 to be in the extended state. flat or collapsed state.
  • the linkage assembly 240 is connected between the transmission assembly 230 and the first bearing group 210 , and between the transmission assembly 230 and the second bearing group 220 , the linkage assembly 240 It may include a first connecting rod group 241 and a second connecting rod group 242, the first connecting rod group 241 is connected between the first transmission group 231 and the first bearing group 210, and the second connecting rod group 242 is connected with the second transmission group Between 232 and the second bearing group 220, the first transmission group 231 and the second transmission group 232 drive the first link group 241 and the second link group 242 to rotate respectively when the external force acts.
  • the first link group 241 may include a first linkage rod 2411 and a first support rod 2412, the first linkage rod 2411 is rotatably connected to the first gear 2311, and the first support rod 2412 is connected to the first Between the linkage rod 2411 and the first bearing group 210 .
  • one end of the first linkage rod 2411 can be connected to the eccentric hole of the first gear 2311 through a pin, so as to form a rotating pair with the first gear 2311.
  • the first gear 2311 rotates, it can provide the first linkage rod 2411 with The rotational power is used to make the first linkage rod 2411 rotate along a preset trajectory.
  • the number of the first support rods 2412 can be adjusted according to the number of the first bearing units 211 .
  • the number of the first support rods 2412 and the number of the first bearing units 211 may be the same, there are multiple first support rods 2412, and each first support rod 2412 is connected to the corresponding first bearing unit 211 and the first support rod 2412.
  • a linkage rod 2411 two adjacent first bearing units 211 can rotate under the driving of the first gear 2311, and two adjacent first bearing units 211 can selectively be in a parallel flat state or The collapsed state at an angle to each other.
  • each first support rod 2412 can be hinged to the first linkage rod 2411 , the other end can be hinged to the first bearing unit 211 , and can be adjacent to the hinge of two adjacent first bearing units 211 .
  • the extension direction of the first linkage rod 2411 may be substantially perpendicular to the rotation axis of the first gear 2311, and may be offset from the center of the first gear 2311. Specifically, when the first linkage rod 2411 and the first gear 2311 are connected, the A linkage rod 2411 is connected to the end face of the first gear 2311 instead of the gear shaft of the first gear 2311 .
  • the first linkage rod 2411 may be inclined relative to the symmetry plane 260.
  • the angle between the first linkage rod 2411 and the symmetry plane 260 may be greater than 0° and less than 90°.
  • the included angle between a support rod 2412 and the first linkage rod 2411 may be less than 90°.
  • the first transmission group 231 may further include a third gear 2312 adapted to be rotatably connected to the first housing 110 , and the first linkage rod 2411 to be rotatably connected between the first gear 2311 and the third gear 2312 .
  • the third gear 2312 is hinged to the first housing 110, the rotation axis of the third gear 2312 may be substantially parallel to the rotation axis of the first gear 2311, and both ends of the first linkage rod 2411 are respectively hinged to the first gear 2311 and the second gear 2321, specifically, the two ends of the first linkage rod 2411 are respectively connected to the end faces of the first gear 2311 and the second gear 2321, and deviate from the gear shafts of the first gear 2311 and the second gear 2321, wherein, The extending direction of the first linkage rod 2411 may be substantially parallel to the line connecting the center of the first gear 2311 and the center of the third gear 2312 . When the first gear 2311 and the third gear 2312 rotate in the same direction, the first linkage rod 2411 rotates according to a predetermined trajectory.
  • the third gear 2312 may be hinged to the bracket 250 and may be disposed adjacent to the first housing 110 , and there may be a distance difference between the third gear 2312 and the first gear 2311 along a direction perpendicular to the bottom surface of the bracket 250 , the first gear 2311 is adjacent to the bottom surface of the bracket 250 compared to the third gear 2312 .
  • the first gear 2311 may be omitted, and the first transmission group 231 may include a drive link, wherein one end of the drive link is hinged to the bracket 250, and the first link rod 2411 is hinged to the other end of the drive link to connect with the drive link.
  • the drive link forms a rotating pair.
  • other structures may also be adopted, as long as the first linkage rod 2411 can move according to a predetermined trajectory.
  • the structure of the second connecting rod group 242 may be substantially the same as that of the first connecting rod group 241 , and the second connecting rod group 242 and the first connecting rod group 241 may be Symmetrically disposed with respect to the symmetry plane 260, the second link group 242 may include a second linkage rod 2421 and a second support rod 2422, the second linkage rod 2421 is connected to the second gear 2321 to form a rotation pair with the second gear 2321, When the second gear 2321 rotates, it can provide rotational power to the second linkage rod 2421, so that the second linkage rod 2421 rotates along a preset trajectory, and the second support rod 2422 is connected to the second linkage rod 2421 and the second bearing Between groups of 220.
  • the number of the first support rods 2412 can be adjusted according to the number of the first bearing units 211 .
  • the number of the second support rods 2422 and the number of the second bearing units 221 may be the same, the number of the second support rods 2422 may be multiple, and each second support rod 2422 is connected to the corresponding second bearing unit 221 and Between the second linkage rods 2421, under the driving of the second gear 2321, the two adjacent second bearing units 221 can rotate, and the two adjacent second bearing units 221 can selectively be in a parallel flat state when rotating. Or the collapsed state at an angle to each other.
  • the extension direction of the second linkage rod 2421 can be substantially perpendicular to the rotation axis of the second gear 2321, and is offset from the center of the second gear 2321.
  • the first A linkage rod 2411 is connected to the second gear 2321 instead of the gear shaft of the second gear 2321 .
  • the second linkage rod 2421 may be inclined relative to the symmetry plane 260.
  • the angle between the second linkage rod 2421 and the symmetry plane 260 may be greater than 0° and less than 90°, and the angle between the second linkage rod 2421 and the symmetry plane 260 may be greater than 0° and less than 90°.
  • the linkage rods 2411 may be symmetrically arranged with respect to the symmetry plane 260 .
  • the second transmission group 232 includes a fourth gear 2322 that is adapted to be rotatably connected to the second housing 120 , and the rotation axes of the third gear 2312 and the fourth gear 2322 may be the same as those of the first gear 2311 .
  • the rotation axes are substantially parallel, and the second linkage rod 2421 is rotatably connected between the second gear 2321 and the fourth gear 2322 .
  • the fourth gear 2322 may be disposed on the second housing 120 , and both ends of the second linkage rod 2421 are hinged to the second gear 2321 and the fourth gear 2322 respectively.
  • both ends of the second linkage rod 2421 Connected to the end faces of the second gear 2321 and the fourth gear 2322, respectively, and offset from the gear shafts of the second gear 2321 and the fourth gear 2322, the extension direction of the second linkage rod 2421 can be substantially parallel to the center of the second gear 2321 and the first gear.
  • the center line of the four gears 2322 When the first gear 2311 and the third gear 2312 rotate in the same direction, the first linkage rod 2411 can rotate according to a predetermined trajectory.
  • the fourth gear 2322 may be disposed on the bracket 250 and may be disposed adjacent to the second housing 120 , and there may be a distance difference between the fourth gear 2322 and the second gear 2321 along a direction perpendicular to the bottom surface of the bracket 250 , the second gear 2321 is adjacent to the bottom surface of the bracket 250 compared to the fourth gear 2322 .
  • the second gear 2321 may not be provided, and the second transmission group 232 may include a drive link, wherein one end of the drive link is hinged to the bracket 250, and the second link rod 2421 is hinged to the other end of the drive link To form a rotating pair with the drive link.
  • the second linkage rod 2421 can move according to a predetermined trajectory.
  • the first gear 2311 and the third gear 2312 may be arranged symmetrically with respect to the symmetry plane 260
  • the second gear 2321 and the fourth gear 2322 may also be arranged symmetrically with respect to the symmetry plane 260 .
  • the first transmission group 231 and the second transmission group 232 can respectively drive the first connecting rod group 241 and the second connecting rod group 242 to perform symmetrical movement about the symmetry plane 260, so as to realize the first shell Symmetrical movement of the body 110 and the second housing 120 .
  • the bracket 250 can remain stationary relative to the symmetrical plane 260 , so as to avoid the problem of the third gear 2312 being rotated or disengaged relative to the first gear 2311 , and to avoid the fourth gear 2312 .
  • the gear 2322 is rotated or disengaged relative to the second gear 2321 to ensure that when the first housing 110 and the second housing 120 are in a stacked state, the end face of the first housing 110 away from the second housing 120 and the second housing 120 The end faces of the two casings 120 away from the first casing 110 are substantially flush, so that the flexible screen module 300 can be basically completely hidden between the first casing 110 and the second casing 120 .
  • the transmission assembly 230 may further include an intermediate gear set 233.
  • the intermediate gear set 233 includes a first intermediate gear 2331 and a second intermediate gear 2332 that mesh with each other.
  • the two intermediate gears 2332 are disposed between the first gear 2311 and the second gear 2321 , the first intermediate gear 2331 meshes with the first gear 2311 , and the second intermediate gear 2332 meshes with the second gear 2321 .
  • the rotation axes of the first intermediate gear 2331 and the second intermediate gear 2332 may be substantially parallel, and both the first intermediate gear 2331 and the second intermediate gear 2332 may be rotatably connected to the bracket 250 and may be symmetrically disposed about the symmetry plane 260 .
  • the transmission ratio between the first intermediate gear 2331 and the first gear 2311 can be the same as the transmission ratio between the second intermediate gear 2332 and the second gear 2321, and the first intermediate gear 2331 and the second intermediate gear 2332 can rotate around their respective The axis rotates freely.
  • the bracket 250 may be provided with a rotating shaft 252 , and the first gear 2311 is rotatably connected to the rotating shaft 252 .
  • the folding mechanism 200 may further include a damping member 270 , which is disposed on the rotating shaft 252 and is connected to the rotating shaft 252 .
  • the predetermined rotational damping force Fz is formed against the first gear 2311, and the predetermined rotational damping force is used to keep the first gear 2311 in the rotated position.
  • the first gear 2311 rotates relative to the shaft 252; when the rotational force F ⁇ Fz received by the first gear 2311, the first gear 2311 does not rotate, that is, the first gear 2311 is in a static state, so that the entire folding mechanism 200 is in a stable state, and the unfolded state between the first housing 110 and the second housing 120 remains unchanged.
  • the first gear 2311 includes an inner peripheral wall 2313
  • the inner peripheral wall 2313 can enclose a rotation hole 2314
  • the rotation shaft 252 is accommodated in the rotation hole 2314
  • the rotation shaft 252 can partially extend into the rotation hole 2314.
  • the damping member 270 may include a fixed portion 271 and an elastic deformation portion 272 .
  • the fixed portion 271 is fixed to the rotating shaft 252
  • the elastic deformation portion 272 is bent relative to the fixed portion 271 and is spaced from the rotating shaft 252 .
  • the damping member 270 may be made of an elastic material, for example, the damping member 270 may be an elastic sheet body made of metal or composite material, and the damping member 270 has better friction resistance performance.
  • the elastically deformable portion 272 may be approximately an arc-shaped elastic sheet, one end of the elastically deformable portion 272 is connected to the fixing portion 271 , and the other end is spaced from the rotating shaft 252 and can be free from external force. In the free state, the elastic deformation portion 272 is bent in a direction away from the rotating shaft 252 relative to the fixing portion 271 to form a protrusion 2721 .
  • the inner peripheral wall 2313 is provided with a matching portion 2315 for matching with the elastic deformation portion 272 , and the matching portion 2315 may be a groove matching with the protrusion 2721 .
  • the damping member 270 When the protrusion 2721 is embedded in the groove, the damping member 270 generates a predetermined rotational damping force Fz to the first gear 2311 .
  • the rotational force F>Fz received by the first gear 2311 the first gear 2311 starts to rotate relative to the damping sheet, and the elastic deformation part 272 and the first gear 2311 rotate relative to each other, so that the protrusion 2721 of the elastic deformation part 272 is disengaged groove.
  • the number of damping members 270 may be multiple, and the multiple damping members 270 may be fixed on the rotating shaft 252 at approximately equal intervals in a certain arrangement, for example, multiple damping members 270
  • the damping members 270 may be disposed at intervals around the outer circumference of the rotating shaft 252 , and the number of the damping members 270 and the number of the matching portions 2315 may be the same.
  • the elastic deformation portion 272 is bent relative to the fixing portion 271 toward the rotation shaft 252 to form a concave portion, and the fitting portion 2315 may be a protrusion 2721 that matches with the concave portion.
  • the second gear 2321 may also be disposed on the other rotating shaft 252 of the bracket 250, and the damping member 270 may provide a preset rotational damping force to the second gear 2321 in the same manner as described above.
  • the damping member 270 provides a preset damping force to the first gear 2311 and the second gear 2321, so that the first casing 110 and the second casing 120 can be kept relatively stable within the preset damping force range, so that the first casing can be kept relatively stable.
  • 110 and the second shell 120 are stably maintained at a certain deployment angle, which increases the shape and usage scenarios of the product.
  • the bending force is greater than the preset damping force, the gap between the first shell 110 and the second shell 120 can be increased. Continue to rotate until the first casing 110 and the second casing 120 are in a flattened or overlapped state.
  • the damping member 270 may also be a locking structure, such as an electromagnetic locking structure or an automatic clamping structure.
  • the electromagnetic locking can electromagnetically lock the first gear 2311.
  • the automatic clamping structure can include a driving part and a clamping part, the clamping part can be clamped on the gear shaft of the first gear 2311, and the driving part can drive the clamping part to selectively clamp the first gear 2311 to keep it still.
  • the folding mechanism 200 further includes a first guide rack 281 adapted to be connected with the first housing 110 and a second guide rack 282 adapted to be connected with the second housing 120 ,
  • the first guide rack 281 meshes with the first gear 2311 ;
  • the second guide rack 282 meshes with the second gear 2321 .
  • the first housing 110 or the second housing 120 rotates relatively, the first housing 110 cooperates with the first gear 2311 through the first guide rack 281 , and the second housing 120 connects with the second guide rack 282
  • the first guide rack 281 and the second guide rack 282 can move symmetrically with respect to the bracket 250.
  • the first guide rack 281 and the second guide rack 282 drive the first gear 2311 and the second guide rack 282 respectively.
  • the second gear 2321 rotates.
  • the first guide rack 281 may include a first guide portion 2811 and a first driving portion 2812 .
  • the first guide portion 2811 is adapted to be slidably connected to the first housing 110 , and defines a first movement direction X1 of the first guide rack 281 relative to the first housing 110 ;
  • the axes of rotation intersect (or are out of plane).
  • the first guide part 2811 is connected with the first driving part 2812 , and the first guide part 2811 can be slidably connected to the first housing 110 and can move along the first movement direction X1 is telescopically arranged relative to 110.
  • the first guide portion 2811 can be slidably arranged on the chute structure of the first housing 110, or the first guide portion 2811 can be provided with a guide hole, and the first housing 110 is provided with a guide The guide strut structure with hole matching.
  • the first guide portion 2811 includes a first guide surface 2815.
  • the first guide surface 2815 extends along the first movement direction X.
  • the number of the first guide surfaces 2815 can be two.
  • the first driving part 2812 has a first curved surface 2814 away from the first guiding part 2811 , the first curved surface 2814 is an arc surface, the first rack 2813 is disposed on the first curved surface 2814 , and the curvature of the first curved surface 2814 defines the first shell The motion trajectory of the body 110 .
  • the first movement direction X1 may be substantially perpendicular (or out of plane) to the rotation axis of the first gear 2311 .
  • the first guide rack 281 When the first housing 110 rotates relative to the bracket 250 , for example, when the user turns over the first housing 110 , the first guide rack 281 is rotated under the driving of the first housing 110 , and the first guide rack 281 on the first curved surface 2814 rotates. A rack 2813 drives the first gear 2311 to rotate, so that the first gear 2311 can be directly driven to rotate by manpower without consuming energy such as electricity.
  • the first guide rack 281 can move along the first movement direction X1 Telescoping to adjust the stroke of the first movement direction X1 to prevent the first housing 110 from restricting movement due to structural interference during the rotation process.
  • the first guide rack 281 may be provided with a first limiting portion 2816 , and the first limiting portion 2816 is suitable for the first housing 110 to limit and fit, and is used to limit the sliding movement of the first guide rack 281
  • the first limiting portion 2816 can be a boss structure, and the first limiting portion 2816 can be provided at the end of the first guide portion 2811 away from the first driving portion 2812.
  • the first limiting portion 2816 can be protruded from the The side of the first guide surface 2815 away from the first driving part 2812 prevents the first guide rack 281 from sliding away from the first housing 110 and ensures the reliability of the guide stroke.
  • first limiting portion 2816 may be a limiting slot, and the limiting slot may extend substantially along the first movement direction X1, and the first housing 110 may be provided with a limiting column matched with the limiting slot. Embedded in the limit groove.
  • the structures of the second guide rack 282 and the first guide rack 281 may be substantially the same, and the second guide rack 282 may include a second guide portion 2821 and a second guide rack 282 .
  • the driving part 2822, the second driving part 2822 is provided with a second rack 2823 that meshes with the second gear 2321; In the second movement direction X2 of the second housing 120 ; the second movement direction X2 intersects with the rotation axis of the first gear 2311 .
  • the second guide portion 2821 may be slidably connected to the second housing 120 and be telescopically disposed along the second movement direction X2, the second guide portion 2821 is connected with the second driving portion 2822, and the second driving portion 2822 There is a second curved surface 2824 away from the second guide portion 2821 , the second curved surface 2824 is an arc surface, the second rack 2823 is disposed on the second curved surface 2824 , and the curvature of the curved surface of the second curved surface 2824 defines the movement track of the second casing 120 .
  • the second guide portion 2821 includes second guide surfaces 2825.
  • the number of the second guide surfaces 2825 can be two.
  • the two second guide surfaces 2825 are respectively disposed on opposite sides of the second guide portion 2821.
  • the 2825 can cooperate with the guide structure (eg, guide groove) of the second housing 120 to define the movement direction of the second guide rack 282 .
  • the second guide portion 2821 may be slidably disposed on the chute structure of the second housing 120, or the second guide portion 2821 may be provided with a guide hole, and the second housing 120 may be provided with a guide post structure matched with the guide hole.
  • the second movement direction X2 may be out of plane and perpendicular to the rotation axis of the second gear 2321 .
  • the second guide rack 282 rotates under the driving of the second casing 120, and the rack on the second curved surface 2824 drives the second rack to rotate.
  • the second guide rack 282 can expand and contract along the second movement direction X2 to adjust the stroke along the second movement direction X2.
  • the second guide rack 282 may be provided with a second limiting portion 2826 , and the second limiting portion 2826 may be provided at an end of the second guide portion 2821 away from the second driving portion 2822 for limiting the second limiting portion 2826 .
  • the second limiting portion 2826 can be a boss structure, and the second limiting portion 2826 can be protruded on the side of the second guide surface 2825 away from the second driving portion 2822 to prevent the second guide teeth
  • the strip 282 slides away from the second housing 120 to ensure the reliability of the guide stroke.
  • the second limiting portion 2826 may be a limiting slot, and the limiting slot may extend substantially along the second movement direction X2, and the second housing 120 may be provided with a limiting column matched with the limiting slot. Embedded in the limit groove.
  • the first guide rack 281 can rotate along with the first housing 110 and provide rotational force to the first gear 2311 , and the second guide rack 282
  • the second housing 120 can be rotated and a rotational force can be provided to the second gear 2321, so that the first carrying group 210 and the second carrying group 220 can selectively be flexible screen molds as the state of the housing assembly 400 is switched.
  • the group 300 provides support or forms a void 212 that accommodates part of the flexible screen module 300 .
  • the folding mechanism 200 may further include a first elastic member 291 and a second elastic member 292 , and the first elastic member 291 is configured to be disposed between the first housing 110 and the first guide teeth between the bars 281 to provide the first guide rack 281 with a restoring force for movement.
  • the second elastic member 292 is used to be disposed between the second guide rack 282 and the second housing 120 to provide a restoring force for movement of the second guide rack 282 .
  • the first elastic member 291 may be fixed to the end surface of the first guide portion 2811 away from the first driving portion 2812
  • the second elastic member 192 may be fixed to the end surface of the second guiding portion 2821 away from the second driving portion 2822 .
  • the first elastic member 291 When the first guide rack 281 rotates with the first housing 110, the first elastic member 291 is used to apply a supporting force to the first guide rack 281, so that the first guide rack 281 can adjust the edge during the rotation
  • the stroke in the first movement direction X1 prevents the first guide rack 281 from interfering with other structures and restricting the movement.
  • the second guide rack 282 when the second guide rack 282 rotates with the second housing 120, the second guide rack 282 can be used by the second elastic member 292 to apply a supporting force to the second guide rack 282, so that the second guide rack 282 can be guided
  • the stroke of the rack 282 along the second movement direction X2 can be adjusted during the rotation process, so as to prevent the movement of the second guide rack 282 from being restricted due to interference with other structures.
  • the first casing 110 and the second casing 120 can rotate symmetrically relative to the bracket 250 along the set trajectory, which is beneficial to the folding electronic
  • the device 500 is more smoothly folded or unfolded, and at the same time, the flexible screen module 300 can be smoothly deformed.
  • the foldable electronic device 500 is folded
  • the three first bearing units 211 are named as the first unit 213 , the second unit 214 and the third unit 215 respectively, and the three second bearing units 221 They are named as the fourth unit 222, the fifth unit 223 and the sixth unit 224, and the specific working principles are as follows:
  • the electronic device 500 is in a flattened state.
  • the first unit 213 , the second unit 214 , the third unit 215 , the fourth unit 222 , the fifth unit 223 , and the sixth unit 224 are flattened side by side state, when the user bends the electronic device 500 in a flattened shape, for example, when the user turns over the first housing 110 and the second housing 120 at the same time, as shown in FIG. 13 and FIG.
  • the first housing The body 110 and the second casing 120 rotate along the first circumferential direction A and the second circumferential direction B respectively, wherein the first circumferential direction A is opposite to the second circumferential direction B, and the first guide rack connected with the first casing 110 281
  • the first guide rack 281 drives the first gear 2311 to rotate along the second circumferential direction B.
  • the first gear 2311 When the first gear 2311 rotates, it drives the first linkage rod 2411 and its The connected end rotates along the second circumferential direction B, the first linkage rod 2411 drives the first support rod 2412 to pull the third unit 215 connected to it to move toward the bracket 250, and the first linkage rod 2411 connected with the first gear 2311 moves along the first The center line direction of the gear 2311 and the third gear 2312 translates and drives the third gear 2312 to rotate along the second circumferential direction B.
  • the second unit 214 is pulled by the first support rod 2412 connected to it and starts to move, and the second unit 214 starts to move.
  • the first support rod 2412 connected with the third gear 2312 pulls the first unit 213 to rotate relative to the first housing 110 along the first circumferential direction A, the first A certain angle is also formed between the unit 213 and the second unit 214 .
  • the second guide rack 282 connected with the second housing 120 rotates along the second circumferential direction B along with the second housing 120, and the second guide rack 282 drives the second gear 2321 to rotate along the first circumferential direction A , the second gear 2321 drives the end of the second linkage rod 2421 to rotate along the first circumferential direction A, and the second linkage rod 2421 drives the sixth unit 224, the fifth unit 223 and the fourth unit through the three second support rods 2422 in turn.
  • the unit 222 moves toward the bracket 250 , the sixth unit 224 and the fifth unit 223 rotate relatively and form an included angle, and the fifth unit 223 and the fourth unit 222 relatively rotate and form an included angle.
  • the bending area of the flexible screen module 300 forms an arc surface, and the flexible screen module 300 is bent.
  • the first unit 213 , the second unit 214 , the third unit 215 , the fourth unit 222 , the fifth unit 223 and the sixth unit 224 together form an approximately arc-shaped supporting surface that matches the arc surface. , so that the bending area of the flexible screen module 300 can be effectively supported and protected, and the flexible screen module 300 can be smoothly deformed.
  • the first shell 110 and the second shell 120 can make flexible
  • the screen module 300 can also maintain a relatively stable state in the unfolded state.
  • the first unit 213 , the second unit 214 , the third unit 215 , the fourth unit 222 , and the fifth unit 223 and the sixth unit 224 together form an empty warehouse 212
  • the first unit 213, the second unit 214, the third unit 215, the fourth unit 222, the fifth unit 223 and the sixth unit 224 together form an approximately U-shaped support surface
  • the end of the first unit 213 connected to the first housing 110 and the end of the fourth unit 222 connected to the second housing 120 are close to each other and spaced apart from each other.
  • each structure in the folding mechanism 200 provides effective support for the flexible screen module 300 during the folding process through the set motion trajectory, and prevents the flexible screen module 300 from failing due to over-folding, so as to realize the flexible screen module Smooth deformation of group 300 .
  • the first guide rack 281 rotates along the second circumferential direction B along with the first casing 110
  • the second guide rack 282 rotates along the first circumferential direction B along with the second casing 120.
  • the circumferential direction A rotates to drive the first gear 2311 to rotate along the first circumferential direction A and the second gear 2321 to rotate along the second circumferential direction B.
  • the first gear 2311 drives the first linkage rod 2411 to drive the first support rod 2412 to rotate along the Moving in the opposite direction
  • the second gear 2321 drives the second linkage rod 2421 to drive the second support rod 2421 to move in the opposite direction, so that the first unit 213 , the second unit 214 , the third unit 215 , and the fourth unit 222 , the fifth unit 223 and the sixth unit 224 are rotated to a state of being flat side by side.
  • the flexible screen module 300 is in a full-screen 180° working state
  • the first casing 110 and the second casing 120 can maintain a stable flat state under the support of the folding mechanism 200 , and the display surface of the flexible screen module 300 Under the support of the folding mechanism 200, it unfolds into a plane.
  • the linkage assembly 240 drives the first bearing group 210 and the second bearing group 220 to rotate relative to each other through the transmission assembly 230.
  • the first carrying group 210 and the second carrying group 220 are in a parallel flat state, and support the bending area of the flexible screen module 300 to keep the bending area flat.
  • the first bearing group 210 and the second bearing group 220 form an angle with each other, so that the first bearing group 210 and the second bearing group 220 together define an empty compartment 212.
  • the empty compartment 212 is convenient for accommodating the bending area formed when the flexible screen module 300 is bent.
  • the bending area is hidden in the cavity.
  • the first carrying group 210 and the second carrying group 220 can be flexible screens.
  • the module 300 provides effective support, does not squeeze or pull the flexible screen module 300, and at the same time meets the minimum bending radius requirements of the flexible screen module 300, preventing the bending area of the flexible screen module 300 from being over-folded and causing flexibility
  • the screen module 300 fails.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Abstract

本申请提供一种折叠机构，应用于内折叠式电子设备，内折叠式电子设备包括壳体组件以及柔性屏模组，壳体组件包括可相对转动的第一壳体和第二壳体，折叠机构包括支架、第一承载组、第二承载组、传动组件和联动组件，传动组件设置于支架，联动组件连接于传动组件与第一承载组之间，并连接于传动组件与第二承载组之间。第一承载组与第二承载组能够选择性地处于并列的展平状态，以对柔性屏模组的弯折区形成支撑以使弯折区保持平整，第一承载组与第二承载组处于收合状态时，两者共同限定形成用于部分地收容柔性屏模组的空仓，这样不会对柔性屏模组产生挤压或拉力，防止柔性屏模组过折而失效。此外，本申请还提供一种壳体组件和电子设备。

Description

折叠机构、壳体组件以及内折叠式电子设备
相关申请的交叉引用
本申请要求于2021年04月20日提交中国专利局的申请号为CN 202110433897.7、名称为“折叠机构、壳体组件以及内折叠式电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电子设备技术领域，尤其涉及一种折叠机构、壳体组件以及内折叠式电子设备。
背景技术
目前可折叠电子设备，如可折叠手机，通常包括内折叠式手机以及外折叠式手机，通过将手机的显示屏进行对折，实现将手机小型化，以方便用户携带。传统的内折叠式手机通常包括第一壳体、第二壳体以及枢接于第一壳体与第二壳体之间的折叠机构，以及覆盖在第一壳体、折叠机构以及第二壳体一侧的柔性显示屏。第一壳体与第二壳体能够翻转至呈叠合状，此时，柔性显示屏呈对折状态。然而，现有多数的内折叠式手机呈展开状时，内折叠手机中柔性显示屏的弯折区的刚性往往不足，从而易产生弯折现象而降低用户的体验甚至正常使用；当内折叠式手机呈叠合状时，柔性显示屏的弯折区容易受到挤压或拉力，甚至会导弯折区过折而使其失效。
发明内容
本申请实施例提出了一种折叠机构、壳体组件以及内折叠式电子设备。
第一方面，本申请实施例提供一种折叠机构，应用于内折叠式电子设备，内折叠式电子设备包括壳体组件以及柔性屏模组，柔性屏模组设于壳体组件，壳体组件包括可相对转动的第一壳体和第二壳体，折叠机构包括支架、第一承载组、第二承载组、传动组件以及联动组件，支架适于连接第一壳体与第二壳体中的至少一者，第一承载组适于可转动地连接于第一壳体，第二承载组适于可转动地连接于第二壳体，传动组件设置于支架，联动组件连接于传动组件与第一承载组之间，并连接于传动组件与第二承载组之间，传动组件被配置为在外力作用时经由联动组件带动第一承载组以及第二承载组相对转动，以使第一承载组与第二承载组选择性地处于并列的展平状态或者互成角度的收合状态，在收合状态时，第一承载组与第二承载组共同限定形成用于部分地收容柔性屏模组的空仓。
第二方面，本申请实施例提供一种壳体组件，壳体组件包括第一壳体、第二壳体以及上述的折叠机构，第一承载组可转动地连接于第一壳体，第二承载组可转动地连接于第二壳体，支架可转动地连接于第一壳体与第二壳体之间，并与第一承载组以及第二承载组相对。
第三方面，本申请实施例还提供一种内折叠式电子设备，包括上述的壳体组件以及柔性屏模组，柔性屏模组设置于第一壳体、折叠机构以及第二壳体。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请实施例提供的电子设备呈一定角度展开时的示意图。
图2是图1所示电子设备呈大致展平状时对应的示意图。
图3是图1所示电子设备的壳体组件呈大致展平状时对应的示意图。
图4是图1所示电子设备的柔性屏模组的局部剖面示意图。
图5是图1所示电子设备呈叠合状时对应的侧面投影示意图。
图6是图2电子设备的局部结构放大示意图。
图7是图6所示电子设备的壳体组件中的支架、第一齿轮、第二齿轮、中间齿轮组以及阻尼件在拆分状态下的结构示意图。
图8是图7所示壳体组件中的阻尼件装配于支架的转轴时对应的局部结构示意图。
图9是图7所示电子设备的第一齿轮、转轴以及阻尼件在组装后对应的局部结构示意图。
图10是图1所示电子设备的壳体组件的局部结构示意图。
图11是图10所示的壳体组件中的第一导向齿条以及第一弹性件在组装后的结构示意图。
图12是图10所示的壳体组件中第二导向齿条以及第二弹性件在组装后的结构示意图。
图13是图2所示的电子设备呈大致展平状时的局部示意图。
图14是图1所示的电子设备呈一定角度展开时的局部示意图。
图15是图4所示的电子设备呈一定角度展开时侧面投影的局部示意图。
具体实施方式
为了使本技术领域的人员更好地理解本申请方案，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，所描述的实施例仅仅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，本领域技术人员在没有做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。
作为在本申请实施例中使用的“通信终端”(或简称为“终端”)、“电子设备”包括，但不限于被设置成经由有线线路连接(如经由公共交换电话网络(PSTN)、数字用户线路(DSL)、数字电缆、直接电缆连接，以及/或另一数据连接/网络)和/或经由(例如，针对蜂窝网络、无线局域网(WLAN)、诸如DVB-H网络的数字电视网络、卫星网络、AM-FM广播发送器，以及/或另一通信终端的)无线接口接收/发送通信信号的装置。被设置成通过无线接口通信的通信终端可以被称为“无线通信终端”、“无线终端”以及/或“移动终端”。移动终端、电子设备的示例包括，但不限于卫星或蜂窝电话；可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(PCS)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(GPS)接收器的PDA；以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。
请参阅图1和图2，本申请实施方式提供一种内折叠式电子设备500，电子设备500可以为但不限于为手机、平板电脑、智能手表等电子装置。本实施方式的电子设备500以手机为例进行说明。
内折叠式电子设备500包括壳体组件400以及柔性屏模组300，柔性屏模组300设置于壳体组件400，壳体组件400包括第一壳体110、第二壳体120以及折叠机构200，折叠机构200连接于第一壳体110与第二壳体120之间。
其中，“内折叠式”是指壳体组件400在折叠过程中，位于第一壳体110与第二壳体120同一侧的柔性屏模组300能够相互靠拢，柔性屏模组300能够更多地隐藏于第一壳体110与第二壳体120之间。
请参阅图3和图4，在本实施例中，柔性屏模组300设置于第一壳体110、折叠机构200以及第二壳体120。柔性屏模组300能够通过壳体组件400以及折叠机构200相对弯折或展开。
请继续参阅图3和图4，在本实施例中，柔性屏模组300可以包括显示功能层311以及缓冲层312，显示功能层311具有弯曲形变的功能，显示功能层311具有显示功能，或者同时具备显示和触控功能。缓冲层312设置于折叠机构200与显示功能层311之间。进一步地，缓冲层312可以连续地铺设于第一壳体110、折叠机构200以及第二壳体120上。缓冲层312可以由具有形变功能的材料制成，例如泡棉、硅胶、胶层或弹性橡胶等，缓冲层312用于在显示功能层311弯折的过程中能够释放显示功能层311弯折区的应力，降低显示功能层311产生折痕的风险，同时避免折叠机构200对显示功能层311的弯折区产生拉扯或者挤压力，有效地延长柔性屏模组300的使用寿命。
在一些实施方式中，如图4所示，柔性屏模组300还可以包括支撑层313，支撑层313可以设于显示功能层311与缓冲层312之间，支撑层313可以由韧性较高以及弹性模量较低的材料制成，例如， 聚对苯二甲酸类塑料(Polyethylene Terephthalate，简称PET或PETP)或其他高分子材料，支撑层313可以为显示功能层311提供相对较硬的支撑，提高抗刺穿的能力，避免柔性屏模组300下方的结构(如壳体的表面或壳体内的电子器件)的毛刺或凸起等结构刺破显示功能层311。
在一些实施方式中，如图4所示，柔性屏模组300还可以包括保护层314，保护层314设置于显示功能层311远离缓冲层312的表面，保护层314可以由柔性材料制成，例如，柔性塑胶或柔性玻璃。通过设置保护层314可以防止显示功能层311的表面被刮花。
如图5所示，当壳体组件400处于叠合状态时，柔性屏模组300能够隐藏于第一壳体110与第二壳体120之间，以对柔性屏模组300进行保护。
请同时参阅图2和图3，在本实施例中，第一壳体110可以大致为矩形状壳体，第一壳体110包括用于支撑柔性屏模组300的第一支撑面113，第一支撑面113可以包括平整的表面结构，以使柔性屏模组300的一端可以平整地铺设于第一支撑面113。
在本实施例中，第二壳体120与第一壳体110的结构和尺寸可以大致相同，第二壳体120也可以大致为矩形状壳体，第一壳体110与第二壳体120可以是硬质壳体或软质壳体，例如，第一壳体110与第二壳体120可以由金属材质、塑胶材质制成，或者由金属材质以及塑胶材质制成。作为一种实施方式，第二壳体120与第一壳体110均可以为硬质壳体，这样第一壳体110和第二壳体120为柔性屏模组300提供一定的硬性支撑和保护。第二壳体120和第一壳体110中的每个可以包括长侧边111以及短侧边112，长侧边111与短侧边112可以大致垂直，其中，长侧边111的长度大于短侧边112的长度，第二壳体120的短侧边112与第一壳体110的短侧边112可以大致齐平，也即第二壳体120的短侧边112以及第一壳体110的短侧边112作为电子设备500的端面，大致位于同一个平面。
请参阅图3，在本实施例中，第二壳体120包括用于支撑柔性屏模组300的第二支撑面121，第二支撑面121可以包括平整的表面结构，以使柔性屏模组300的另一端可以平整地铺设于第二支撑面121，第一支撑面113与第二支撑面121分别支撑柔性屏模组300的两端。
当第一壳体110与第二壳体120呈夹角状时(如图1所示)，第一支撑面113与第二支撑面121之间的夹角大于0°小于180°，示例性地，第一壳体110与第二壳体120呈半展开状态时，第一支撑面113与第二支撑面121之间形成的夹角大致为90°，此时，电子设备500可以作为笔记本电脑使用，电子设备500能够平稳地摆放在桌面。
当第一壳体110与第二壳体120呈展平状时(如图2所示)，第一支撑面113与第二支撑面121可以大致保持齐平，也即两者均大致位于同一平面，此时，第一支撑面113与第二支撑面121之间形成的夹角大致为180°，铺设于第一支撑面113以及第二支撑面113的柔性屏模组300能够处于较大的全屏工作状态，从而实现柔性屏模组300的180°全屏显示，此时，电子设备500可以作为平板电脑使用。
当第一壳体110与第二壳体120呈叠合状时(如图4所示)，第一支撑面113可以与第二支撑面121之间的夹角大致为0°，或者第一支撑面113可以与第二支撑面121之间形成夹角的开口可以朝向第一壳体110与第二壳体120之间的弯折区，此时，第一支撑面113与第二支撑面121之间的夹角可以小于0°。当第一壳体110与第二壳体120呈叠合状时，电子设备500具有较小的体积，便于用户携带。
在本实施例中，第一壳体110与第二壳体120能够转动至不同的展开角度，电子设备500能够实现0～180°分级调节的功能，第一壳体110与第二壳体120可以分别与折叠机构200铰接，或者折叠机构200为柔性结构或可折叠结构，以使第一壳体110与第二壳体120能够转动。
请参阅图5，折叠机构200设置于第一壳体110以及第二壳体120之间，折叠机构200可以随着第一壳体110或第二壳体120的转动进行展平或收合，折叠机构200能够对支撑柔性屏模组300位于两端之间的部分提供有效的支撑。
折叠机构200相对的两侧边分别连接于第一壳体110和第二壳体120。折叠机构200利用自身可转动的特性，使得第一壳体110可相对第二壳体120翻转，使得第一壳体110相对第二壳体120呈叠合状、或呈夹角状，或呈展开状，或呈展平状。
请参阅图5和图6，折叠机构200可以包括第一承载组210、第二承载组220、传动组件230、联动组件240以及支架250，支架250适于连接第一壳体110与第二壳体120中的至少一者，第一承载组210适于可转动地连接于第一壳体110，第二承载组220适于可转动地连接于第二壳体120，传动组件230通过联动组件240分别与第一承载组210以及第二承载组220形成传动关系，以在外力作用下驱使第一承载组210和第二承载组220相对转动。
在本实施例中，支架250可以连接于第一壳体110与第二壳体120之间，以使第一壳体110与第二壳体120可选择性地相互折叠或展开。支架250可以为传动组件230以及联动组件240提供支撑和保护，此外，支架250还可以起到保护并遮盖电子设备500内部元器件和线路的作用。
作为一种示例，支架250可以是硬质壳体，支架250的两端分别枢接于第一壳体110以及第二壳体120，以使第一壳体110与第二壳体120可以各自围绕一转动轴线相对于支架250进行转动，从而使得第一壳体110与第二壳体120可以选择性地相互展平或叠合。
作为另外一种示例，支架250可以是柔性壳体，支架250具有可弯折变形的特性，支架250的两端分别连接于第一壳体110以及第二壳体120，支架250与第一壳体110以及第二壳体120可一体成型，在外力作用下，支架250可以发生弯折变形，支架250与第一壳体110以及第二壳体120连接的两端可以相互展开或折叠，从而实现第一壳体110与第二壳体120的相互折叠或展开。
作为又一种示例，支架250可以包括硬质部分和两个柔性部分，两个柔性部分可以分别位于硬质部分的两端，硬质部分可以为传动组件230以及联动组件240等结构提供支撑，第一壳体110以及第二壳体120分别与两个柔性部分连接，在外力作用下，第一壳体110以及第二壳体120可以通过柔性部分相对于硬质部分进行转动，以选择性地相互折叠或展开。
作为再一种示例，支架250可以包括硬质部分和两个折叠部分，折叠部分可以包括多个依次连接的折叠单元，相邻两个折叠单元可以相互展开或收拢，两个折叠部分可以分别连接于硬质部分的两端，第一壳体110以及第二壳体120分别与两个折叠部分连接，第一壳体110以及第二壳体120在外力作用下，第一壳体110以及第二壳体120可以分别带动两个折叠部分相对于硬质部分弯折，从而使得第一壳体110与第二壳体120之间相互展平或叠合。
请参阅图5和图6，在本实施例中，第一承载组210可转动地连接于第一壳体110，第二承载组220可转动地连接于第二壳体120，支架250与第一承载组210以及第二承载组220大致相对设置，以在第一承载组210以及第二承载组220与支架250之间形成安装空间251，安装空间251可用于安装联动组件240以及传动组件230等部件的至少部分结构或者全部结构，此外，安装空间251还可以为柔性电路板或线路提供安装空间。
传动组件230在外力作用时经由联动组件240带动第一承载组210以及第二承载组220相对转动，使得第一承载组210与第二承载组220可选择性地处于并排的展平状态(如图3所示)或者互呈角度的收合状态(如图4所示)。
在展平状态时，第一支撑面113、第一承载组210的表面、第二承载组220的表面以及第二支撑面121均可以大致地处于同一平面，以共同形成对柔性屏模组300提供平整的支撑，使得柔性屏模组300的显示面能够展开为一平面，此时，柔性屏模组300处于较大的全屏工作状态，第一承载组210与第二承载组220的表面能够对柔性屏模组300的弯折区(是指柔性屏模组300在折叠时发生弯曲的区域)形成平整且有效的支撑，以使展平后的柔性屏模组300的弯折区能够保持平整，避免弯折区出现下榻或者产生折痕，提高用户体验。
如图5所示，当第一壳体110与第二壳体120呈叠合状时，第一壳体110与第二壳体120可以相互扣合，此时，第一承载组210与第二承载组220处于互呈角度的收合状态时，第一承载组210与第二承载组220共同限定形成用于部分地收容柔性屏模组300的空仓212。
在本实施例中，第一壳体110与第二壳体120呈叠合状时，第一承载组210与第二承载组220相互靠近的端部均朝向远离柔性屏模组300的一侧凸出，因而，在第一承载组210以及第二承载组220邻近柔性显示屏模组300的一侧腾出局部空间，以形成空仓212，空仓212的形状可以与柔性屏模组300的弯折部分形成的形状相适配，第一承载组210与第二承载组220能够同时对柔性屏模组300的 弯折区进行支撑。
当第一壳体110与第二壳体120呈叠合状时，柔性屏模组300可以处于卷曲角度≤0°的状态，“卷曲角度”是指柔性屏模组300的位于弯折区两侧的表面之间形成夹角，其中夹角的开口方向朝向柔性屏模组300的弯折区。通过在折叠机构200形成空仓212，满足柔性屏模组300最小弯曲半径要求，使得柔性屏模组300的弯折区不会过折而导致失效。
请参阅图5和图6，在本实施例中，第一承载组210包括多个依次可转动地连接的第一承载单元211，第一承载单元211可以是矩形片体结构，第一承载单元211可以大致平行于长侧边111的方向延伸，其中，第一承载单元211的长度可以与长侧边111的长度大致相同。
在本实施例中，相邻两个第一承载单元211可转动连接，当相邻两个第一承载单元211受到外力驱使相互转动时，相邻两个第一承载单元211的连接处可以朝向支架250移动，相邻两个第一承载单元211之间形成小于180°的夹角，使得多个第一承载单元211共同形成的形状可以与柔性屏模组300的弯折区形成的外轮廓相适配，多个第一承载单元211能够贴合着柔性屏模组300的外轮廓，这样多个第一承载单元211不仅可以对柔性屏模组300的外轮廓进行支撑，避免柔性屏模组300的弯折区过折，而且可以避免挤压到柔性屏模组300。
进一步地，第一承载单元211的两个端面可与第一壳体110的短侧边112保持齐平，这样可以避免第一承载单元211的两个端面外凸于短侧边112，在跌落时，有效地避免第一承载单元211受到地面的撞击而受到损坏。此外，第一承载单元211的长度也可以小于长侧边111的长度。
在本实施例中，相邻两个第一承载单元211可以通过销轴等连接件进行铰接，每个第一承载单元211包括第一承载平面2111，第一承载平面2111用于支撑柔性屏模组300的弯折区，多个第一承载单元211在联动组件240的驱使下可选择性地处于并列的展平状态(如图3所示)或者互成角度的收合状态(如图4所示)。
如图6所示，当多个第一承载单元211处于并列的展平状态时，相邻两个第一承载平面2111能够处于齐平状态，也即两者大致位于同一平面；当多个第一承载单元211处于互成角度的收合状态时，相邻两个第一承载单元211之间形成的夹角小于180°。
请继续参阅图5和图6，在本实施例中，第二承载组220的结构与第一承载组210的结构可以大致相同，第二承载组220包括多个依次可转动地连接于第二承载单元221，第二承载单元221可以是矩形片体结构，第二承载单元221可以大致沿平行于长侧边111的方向延伸，并可以与长侧边111的长度大致相同。
相应地，通过将相邻两个第二承载组220可转动连接，当相邻两个第二承载组220受到外力驱使相互转动时，相邻两个第二承载组220的连接处可以朝向支架250移动，相邻两个第二承载组220之间形成小于180°的夹角，使得多个第二承载组220共同形成的形状可以与柔性屏模组300的弯折区形成的外轮廓相适配，多个第二承载组220能够贴合着柔性屏模组300的外轮廓，这样多个第二承载组220不仅可以对柔性屏模组300的外轮廓进行支撑，避免柔性屏模组300的弯折区过折，而且可以避免挤压到柔性屏模组300。
进一步地，第二承载单元221的长度可以与长侧边111的长度大致相同，每个第二承载单元221的两个端面可与第二壳体120的短侧边112保持齐平，这样可以避免第二承载单元221外凸于短侧边112，在跌落时，有效地避免第二承载单元221受到地面的撞击而受到损坏。相邻两个第二承载单元221可以通过销轴等连接件进行铰接，每个第二承载单元221包括第二承载平面2211，多个第二承载单元221在联动组件240的驱使下可选择性地处于并列的展平状态(如图3所示)或者互成角度的收合状态(如图4所示)。
如图4和图5所示，当多个第二承载单元221处于并列的展平状态时，相邻两个第二承载平面2211处于齐平状态，也即两者大致位于同一平面；当多个第二承载单元221处于互成角度的收合状态时，相邻两个第二承载单元221之间形成的夹角小于180°，多个第二承载单元221与多个第一承载单元211相互收合。
请参阅图5和图6，在本实施例中，第一承载单元211的数量可以与第二承载单元221的数量相 同，第一承载组210与第二承载组220关于一对称面260(如图3所示)呈对称分布，对称面260可以是折叠机构200的对称中心线以及第一承载组210与第一承载组220之间的对称中心线所共同限定的平面。
在折叠过程中，第一承载组210与第二承载组220可以相对于对称面260对称转动并相互靠拢，同时，第一壳体110与第二壳体120也能够关于对称面260对称转动，当折叠式电子设备500处于叠合状态时，第一壳体110远离第二壳体120的端面与第二壳体120远离第一壳体110的端面可以大致齐平，使得位于第一壳体110和第二壳体120同一侧的柔性屏模组300基本可以全部隐藏在第一壳体110与第二壳体120之间，避免柔性屏模组300外露，有效地对柔性屏模组300进行保护，降低或避免外界对柔性屏模组300的撞击以及磨损等影响。
第一承载单元211以及第二承载单元221的数量可以为奇数个或偶数个，例如，第一承载单元211以及第二承载单元221的数量均可以为1个、3个、5个、7个或9个等奇数个，或者2个、4个、6个、8个或10个等偶数个。在此对第一承载单元211以及第二承载单元221的数量不作具体限定，具体可以根据实际需求调整。
在一些实施方式中，第一承载单元211的数量与第二承载单元221的数量可以不同，例如，第一承载单元211的数量可以多于第二承载单元221的数量，或者，也可以少于第二承载单元221的数量。
当第一壳体110与第二壳体120呈展平状时，第一支撑面113、多个第一承载平面2111、多个第二承载平面2211以及第二支撑面121均可以位于同一平面，以为柔性屏模组300提供平整且有效的支撑，使得柔性屏模组300更加平整地展平在同一平面上。
当第一壳体110与第二壳体120呈夹角状时，例如，半展开状态时，柔性屏模组300的弯折区弯曲并形成弧面，多个第一承载平面2111与多个第二承载平面2211大致形成与弧面相适配的弧形支撑面，从而进行柔性屏模组300的弯折区形成有效支撑和保护。
当第一壳体110与第二壳体120呈叠合状时，相邻两个第一承载平面2111以及相邻两个第二承载平面2211之间均形成小于180°的夹角，第一承载平面2111与其相邻的第二承载平面2211之间也形成小于180°的夹角，多个第一承载平面2111与多个第二承载平面2211能够大致围成U型状空仓212，多个第一承载平面2111以及多个第二承载平面2211可以围绕在柔性屏模组300的弯折区的外侧并对其形成有效的支撑，避免弯折区出现过折而导致柔性屏模组300失效的情况，减少或避免对弯折区产生拉/压应力作用，使得柔性屏模组300可以得到有效的保护。
请参阅图5和图6，在本实施例中，多个第一承载单元211中的一者枢接于第一壳体110，多个第二承载单元221中的一者枢接于第二壳体120，多个第一承载单元211中远离第一壳体110的一者可以与相邻的第二承载单元221相抵接，或者以枢接的方式进行连接。
请继续参阅图5和图6，在本实施例中，传动组件230位于安装空间251内，传动组件230设置于支架250，传动组件230被配置为在外力作用时经由联动组件240带动第一承载组210以及第二承载组220相对转动，以使第一承载组210与第二承载组220选择性地处于并列的展平状态或者互成角度的收合状态。传动组件230通过联动组件240与多个第一承载单元211以及多个第二承载单元221形成传动。
在本实施例中，传动组件230可以包括第一传动组231和第二传动组232，第一传动组231和第二传动组232均设于安装空间251内，第一传动组231以及第二传动组232分别与第一承载组210以及第二承载组220传动配合，在外力作用时，第一传动组231以及第二传动组232分别驱使第一承载组210以及第二承载组220转动，以使第一承载组210以及第二承载组220选择性地处于并排的展平状态或互成角度的收合状态。
在本实施例中，第一传动组231包括第一齿轮2311，第一齿轮2311可转动连接于支架250，第二传动组232包括第二齿轮2321，第二齿轮2321可转动地连接于支架250，其中，第二齿轮2321的转动轴线可以与第一齿轮2311的转动轴线大致平行。第一齿轮2311以及第二齿轮2321在外力作用时发生转动，以驱使联动组件240带第一承载组210以及第二承载组220转动，从而驱使第一承载组210以及第二承载组220处于展平或收合状态。
请继续参阅图5和图6，在本实施例中，联动组件240连接于传动组件230与第一承载组210之间，并连接于传动组件230与第二承载组220之间，联动组件240可以包括第一连杆组241和第二连杆组242，第一连杆组241连接于第一传动组231与第一承载组210之间，第二连杆组242连接于第二传动组232与第二承载组220之间，第一传动组231以及第二传动组232在外力作用时分别带动第一连杆组241以及第二连杆组242转动。
在本实施例中，第一连杆组241可以包括第一联动杆2411和第一支撑杆2412，第一联动杆2411可转动地连接于第一齿轮2311，第一支撑杆2412连接于第一联动杆2411以及第一承载组210之间。具体地，第一联动杆2411的一端可以通过销轴连接于第一齿轮2311的偏心孔，以与第一齿轮2311形成旋转副，当第一齿轮2311在转动时可以向第一联动杆2411提供旋转动力，以使第一联动杆2411进行沿预设轨迹进行转动。
第一支撑杆2412的数量可以根据第一承载单元211的数量进行调整。作为一种示例，第一支撑杆2412的数量与第一承载单元211的数量可以相同，第一支撑杆2412为多个，每个第一支撑杆2412连接于对应的第一承载单元211以及第一联动杆2411之间，在第一齿轮2311的驱使下相邻两个第一承载单元211能够转动，相邻两个第一承载单元211在转动时可以选择性地处于并列的展平状态或者互成角度的收合状态。每个第一支撑杆2412的一端可以铰接于第一联动杆2411，另一端铰接于第一承载单元211，并可以邻近于相邻两个第一承载单元211的铰接处。第一联动杆2411的延伸方向可以与第一齿轮2311的转动轴线大致垂直，并偏离于第一齿轮2311的中心设置，具体地，第一联动杆2411和第一齿轮2311相连接的时候，第一联动杆2411连接在第一齿轮2311的端面而非第一齿轮2311的齿轮轴。第一联动杆2411可以相对于对称面260倾斜设置，折叠式电子设备500在展平状态时，第一联动杆2411与对称面260之间的夹角可以大于0°小于90°，每个第一支撑杆2412与第一联动杆2411的夹角可以小于90°。
请继续参阅图5和图6，在本实施例中，第一传动组231还可以包括适于可转动地连接于第一壳体110的第三齿轮2312，第一联动杆2411可转动地连接于第一齿轮2311与第三齿轮2312之间。作为一种示例，第三齿轮2312铰接于第一壳体110，第三齿轮2312的转动轴线可以与第一齿轮2311的转动轴线大致平行，第一联动杆2411的两端分别铰接于第一齿轮2311以及第二齿轮2321，具体地，第一联动杆2411的两端分别连接在第一齿轮2311以及第二齿轮2321的端面，并偏离第一齿轮2311以及第二齿轮2321的齿轮轴，其中，第一联动杆2411的延伸方向可以大致平行于第一齿轮2311的中心与第三齿轮2312的中心连线。当第一齿轮2311与第三齿轮2312朝相同方向转动时，第一联动杆2411按照预定的轨迹进行转动。
在一些实施方式中，第三齿轮2312可以铰接于支架250并可以邻近于第一壳体110设置，第三齿轮2312与第一齿轮2311沿垂直于支架250的底面方向可以之间可以具距离差，第一齿轮2311相较于第三齿轮2312邻近于支架250的底面。
在一些实施方式中，第一齿轮2311可以省略，第一传动组231可以包括驱动连杆，其中驱动连杆的一端铰接于支架250，第一联动杆2411铰接于驱动连杆的另一端以与驱动连杆形成旋转副。或者也可以采用其它的结构，只需第一联动杆2411能够按照预定的轨迹运动即可。
请继续参阅图5和图6，在本实施例中，第二连杆组242的结构可以与第一连杆组241的结构大致相同，第二连杆组242与第一连杆组241可以关于对称面260呈对称设置，第二连杆组242可以包括第二联动杆2421以及第二支撑杆2422，第二联动杆2421连接于第二齿轮2321，以与第二齿轮2321形成旋转副，当第二齿轮2321在转动时可以向第二联动杆2421提供旋转动力，以使第二联动杆2421进行沿预设轨迹进行转动，第二支撑杆2422连接于第二联动杆2421以及第二承载组220之间。第一支撑杆2412的数量可以根据第一承载单元211的数量进行调整。
作为一种示例，第二支撑杆2422的数量与第二承载单元221的数量可以相同，第二支撑杆2422可以为多个，每个第二支撑杆2422连接于对应的第二承载单元221以及第二联动杆2421之间，在第 二齿轮2321的驱使下相邻两个第二承载单元221能够转动，相邻两个第二承载单元221在转动时可以选择性地处于并列的展平状态或者互成角度的收合状态。第二联动杆2421的延伸方向可以与第二齿轮2321的转动轴线大致垂直，并偏离于第二齿轮2321的中心设置，具体地，第二联动杆2421和第二齿轮2321相连接的时候，第一联动杆2411连接在第二齿轮2321而非第二齿轮2321的齿轮轴。第二联动杆2421可以相对于对称面260倾斜设置，折叠式电子设备500在展开状态时，第二联动杆2421与对称面260之间的夹角可以大于0°小于90°，并与第一联动杆2411可以关于对称面260呈对称设置。
在本实施例中，第二传动组232包括适于可转动地连接于第二壳体120的第四齿轮2322，第三齿轮2312以及第四齿轮2322的转动轴线均可以与第一齿轮2311的转动轴线大致平行，第二联动杆2421可转动地连接于第二齿轮2321与第四齿轮2322之间。
作为一种示例，第四齿轮2322可以设置于第二壳体120，第二联动杆2421的两端分别铰接于第二齿轮2321以及第四齿轮2322，具体地，第二联动杆2421的两端分别连接在第二齿轮2321以及第四齿轮2322的端面，并偏离第二齿轮2321以及第四齿轮2322的齿轮轴，第二联动杆2421的延伸方向可以大致平行于第二齿轮2321的中心与第四齿轮2322的中心连线。当第一齿轮2311与第三齿轮2312朝相同方向转动时，第一联动杆2411能够按照预定的轨迹进行转动。
在一些实施方式中，第四齿轮2322可以设置于支架250并可以邻近于第二壳体120设置，第四齿轮2322与第二齿轮2321沿垂直于支架250的底面方向可以之间可以具距离差，第二齿轮2321相较于第四齿轮2322邻近于支架250的底面。
在一些实施方式中，也可以不用设置第二齿轮2321，第二传动组232可以包括驱动连杆，其中驱动连杆的一端铰接于支架250，第二联动杆2421铰接于驱动连杆的另一端以与驱动连杆形成旋转副。或者也可以采用其它的结构，只需第二联动杆2421能够按照预定的轨迹运动即可。
在一些实施方式中，第一齿轮2311与第三齿轮2312可以关于对称面260呈对称设置，第二齿轮2321与第四齿轮2322也可以关于对称面260呈对称设置，当第一传动组231和第二传动组232在外力作用下，第一传动组231和第二传动组232能够分别驱使第一连杆组241以及第二连杆组242关于对称面260进行对称运动，从而实现第一壳体110与第二壳体120的对称运动。
当第一壳体110与第二壳体120在展开时，支架250能够相对对称面260不动，避免第三齿轮2312相对于第一齿轮2311发生偏位转动或脱离等问题，并避免第四齿轮2322相对于第二齿轮2321发生偏位转动或脱离等问题，保证第一壳体110与第二壳体120在叠置状态时，第一壳体110远离第二壳体120的端面与第二壳体120远离第一壳体110的端面大致齐平，以使柔性屏模组300基本可以全部隐藏于第一壳体110与第二壳体120之间。
在一些实施方式中，如图6所示，传动组件230还可以包括中间齿轮组233，中间齿轮组233包括彼此啮合的第一中间齿轮2331和第二中间齿轮2332，第一中间齿轮2331与第二中间齿轮2332均设于第一齿轮2311与第二齿轮2321之间，第一中间齿轮2331与第一齿轮2311啮合，第二中间齿轮2332与第二齿轮2321啮合。作为一种示例，第一中间齿轮2331与第二中间齿轮2332的转动轴线可以大致平行，第一中间齿轮2331和第二中间齿轮2332均可转动连接于支架250，并可以关于对称面260对称设置。第一中间齿轮2331与第一齿轮2311的之间传动比可以与第二中间齿轮2332与第二齿轮2321的之间传动比相同，第一中间齿轮2331以及第二中间齿轮2332可以围绕各自的转动轴线自由旋转。
请参阅图6和图7，在一些实施方式中，支架250可以设有转轴252，第一齿轮2311转动连接于转轴252，折叠机构200还可以包括阻尼件270，阻尼件270设置于转轴252并与第一齿轮2311相抵以形成预设转动阻尼力Fz，预设转动阻尼力用于使第一齿轮2311保持在转动后的位置。当第一齿轮2311受到的旋转力F>Fz，第一齿轮2311相对于转轴252转动；当第一齿轮2311受到的旋转力F≤Fz时，第一齿轮2311不发生转动，也即第一齿轮2311处于静止状态，从而使得整个折叠机构200处于 稳固状态，第一壳体110与第二壳体120之间展开的状态保持不变。
请参阅图7和图8，在一些实施方式中，第一齿轮2311包括内周壁2313，内周壁2313可以围成转动孔2314，转轴252容置于转动孔2314，转轴252可以部分地伸入转动孔2314内，或者穿设于整个转动孔2314，阻尼件270可以包括固定部271以及弹性形变部272，固定部271固定于转轴252，弹性形变部272相对固定部271弯曲并与转轴252相间隔。阻尼件270可以由弹性材料制成，例如，阻尼件270可以是金属或复合材料制成弹性片体，阻尼件270具有较好的耐摩擦性能。
作为一种示例，如图8和图9所示，弹性形变部272可以大致为弧形弹片，弹性形变部272的一端连接于固定部271，另一端与转轴252间隔并在无外力作用下可处于自由态，弹性形变部272相对于固定部271朝向远离转轴252的方向弯曲形成凸起2721。内周壁2313设有用于与弹性形变部272相配合的配合部2315,配合部2315可以为与凸起2721相配合的凹槽。当凸起2721嵌设于凹槽内时，阻尼件270对第一齿轮2311产生预设转动阻尼力Fz。当第一齿轮2311受到的旋转力F>Fz时，第一齿轮2311相对于阻尼片开始转动，弹性形变部272与第一齿轮2311之间相对转动，从而使得弹性形变部272的凸起2721脱离凹槽。
在一些实施方式中，如图8和图9所示，阻尼件270的数量可以为多个，多个阻尼件270可以呈一定排列方式,大致等间距地固定在转轴252上，例如，多个阻尼件270可以围绕转轴252的外周间隔设置，阻尼件270的数量与配合部2315的数量可以相同。在一些实施方式中，弹性形变部272相对于固定部271朝向转轴252的方向弯曲形成凹部，配合部2315可以为与凹部相配合的凸起2721结构。
在一些实施方式中，第二齿轮2321也可以设于支架250的另一个转轴252，阻尼件270可以采用上述相同的方式对第二齿轮2321提供预设转动阻尼力。
通过阻尼件270向第一齿轮2311以及第二齿轮2321提供预设阻尼力，能够让第一壳体110与第二壳体120在预设阻尼力范围内保持相对稳定，从而使得第一壳体110与第二壳体120稳固地保持在一定的展开角度，增加了产品的形态和使用场景，当弯折力大于预设阻尼力时，第一壳体110与第二壳体120之间可以继续转动，直至第一壳体110与第二壳体120呈展平或叠合状态。
此外，在一些实施方式中，阻尼件270也可以是锁定结构，例如可以是电磁锁定或者自动卡紧结构，当第一齿轮2311转动至不同的角度时，电磁锁定可以对第一齿轮2311进行电磁锁定，此外，自动卡紧结构可以包括驱动部和卡紧部，卡紧部可以卡设在第一齿轮2311的齿轮轴上，驱动部可以驱使卡紧部选择性地卡紧第一齿轮2311以使其保持静止。
请参阅图10，在一些实施方式中，折叠机构200还包括适于与第一壳体110连接的第一导向齿条281和适于与第二壳体120连接的第二导向齿条282，第一导向齿条281与第一齿轮2311啮合；第二导向齿条282与第二齿轮2321啮合。当第一壳体110或第二壳体120相对转动时，第一壳体110通过第一导向齿条281与第一齿轮2311的配合，以及第二壳体120通过第二导向齿条282与第二齿轮2321的配合，第一导向齿条281与第二导向齿条282能够相对于支架250进行对称运动，第一导向齿条281和第二导向齿条282分别驱使第一齿轮2311以及第二齿轮2321转动。
在一些实施方式中，如图10和图11所示，第一导向齿条281可以包括第一导向部2811以及第一驱动部2812，第一驱动部2812设有与第一齿轮2311啮合的第一齿条2813。第一导向部2811适于与第一壳体110可滑动连接，并限定第一导向齿条281相对于第一壳体110的第一运动方向X1；第一运动方向X1与第一齿轮2311的转动轴线相交(或者异面)。
作为一种示例，如图10和图11所示，第一导向部2811与第一驱动部2812相连接，第一导向部2811可以滑动连接于第一壳体110，并可沿第一运动方向X1相对110可伸缩地设置，例如，第一导向部2811可以滑动设置于第一壳体110的滑槽结构，或者第一导向部2811可以设置有导向孔，第一壳体110设有与导向孔配合的导滑柱结构。第一导向部2811包括第一导向面2815，第一导向面2815沿第一运动方向X延伸设置，第一导向面2815的数量可以为两个，两个第一导向面2815分别设于第一 导向部2811的相对两侧，两个第一导向面2815与第一壳体110的导向结构配合，以限定第一导向齿条281的运动方向。第一驱动部2812具有远离第一导向部2811的第一曲面2814，第一曲面2814为弧面，第一齿条2813设置于第一曲面2814，第一曲面2814的曲面弧度限定了第一壳体110的运动轨迹。第一运动方向X1可以与第一齿轮2311的转动轴线大致垂直(或者异面)。
当第一壳体110相对于支架250转动时，例如，当用户翻转第一壳体110时，第一导向齿条281在第一壳体110的带动下进行转动，第一曲面2814上的第一齿条2813驱使第一齿轮2311转动，这样可以不需要消耗电量等能量，直接通过人力方式驱使第一齿轮2311进行转动，在转动过程中，第一导向齿条281可以沿第一运动方向X1伸缩以调整第一运动方向X1的行程，以防止第一壳体110在转动过程中由于结构干涉而限制运动。
在一些实施方式中，第一导向齿条281可以设有第一限位部2816，第一限位部2816适于第一壳体110限位配合，并用于限定第一导向齿条281的滑动行程，第一限位部2816可以是凸台结构，第一限位部2816可以设于第一导向部2811远离第一驱动部2812的一端，具体地，第一限位部2816可以凸设于第一导向面2815远离第一驱动部2812的一侧，防止第一导向齿条281滑离第一壳体110，保证导向行程的可靠。此外，第一限位部2816可以为限位槽，限位槽可以大致沿第一运动方向X1延伸设置，第一壳体110可以设有与限位槽相配合的限位柱，限位柱嵌设于限位槽内。
在一些实施方式中，如图10和图11所示，第二导向齿条282与第一导向齿条281的结构可以大致相同，第二导向齿条282可以包括第二导向部2821以及第二驱动部2822，第二驱动部2822设有与第二齿轮2321啮合的第二齿条2823；第二导向部2821适于与第二壳体120可滑动连接，并限定第二导向齿条282相对于第二壳体120的第二运动方向X2；第二运动方向X2与第一齿轮2311的转动轴线相交。
作为一种示例，第二导向部2821可以滑动连接于第二壳体120并沿第二运动方向X2可伸缩地设置，第二导向部2821与第二驱动部2822相连接，第二驱动部2822具有远离第二导向部2821的第二曲面2824，第二曲面2824为弧面，第二齿条2823设置于第二曲面2824，第二曲面2824的曲面弧度限定了第二壳体120的运动轨迹。第二导向部2821包括第二导向面2825，第二导向面2825的数量可以为两个，两个第二导向面2825分别设于第二导向部2821的相对两侧，两个第二导向面2825可以与第二壳体120的导向结构(例如导槽)进行配合，以限定第二导向齿条282的运动方向。第二导向部2821可以滑动设置于第二壳体120的滑槽结构，或者第二导向部2821可以设置有导向孔，第二壳体120设有与导向孔配合的导滑柱结构。
第二运动方向X2可以与第二齿轮2321的转动轴线异面垂直。当第二壳体120相对于支架250转动时，第二导向齿条282在第二壳体120的带动下进行转动，第二曲面2824上的齿条带动第二齿条进行转动，在转动过程中，第二导向齿条282可以沿第二运动方向X2伸缩以调整沿第二运动方向X2的行程。
在一些实施方式中，第二导向齿条282可以设有第二限位部2826，第二限位部2826可以设于第二导向部2821远离第二驱动部2822的一端，并用于限止第二导向齿条282的滑动行程，第二限位部2826可以为凸台结构，第二限位部2826可以凸设于第二导向面2825远离第二驱动部2822的一侧，防止第二导向齿条282滑离第二壳体120，保证导向行程的可靠。此外，第二限位部2826可以为限位槽，限位槽可以大致沿第二运动方向X2延伸设置，第二壳体120可以设有与限位槽相配合的限位柱，限位柱嵌设于限位槽内。
当用户转动第一壳体110和/或第二壳体120时，第一导向齿条281可以随着第一壳体110进行转动并向第一齿轮2311供旋转力，第二导向齿条282可以随着第二壳体120进行转动并向第二齿轮2321提供旋转力，以使第一承载组210以及第二承载组220随着壳体组件400的状态切换而选择性地为柔性屏模组300提供支撑或形成收容部分柔性屏模组300的空仓212。
在一些实施方式中，如图11和图12，折叠机构200还可以包括第一弹性件291和第二弹性件292，第一弹性件291用于设置在第一壳体110与第一导向齿条281之间，以向第一导向齿条281提供运动的复位回复力。第二弹性件292用于设置在第二导向齿条282与第二壳体120之间以向第二导向齿条282提供运动的复位回复力。第一弹性件291可以固定于第一导向部2811远离第一驱动部2812的端面，第二弹性件192可以固定于第二导向部2821远离第二驱动部2822的端面。
当第一导向齿条281随着第一壳体110转动时，第一弹性件291用于向第一导向齿条281施加支持力，以使第一导向齿条281在转动过程中能够调整沿第一运动方向X1的行程，避免第一导向齿条281与其它结构发生干涉而被限制运动。相应地，当第二导向齿条282随着第二壳体120转动时，第二导向齿条282能够第二弹性件292用于向第二导向齿条282施加支持力，以使第二导向齿条282在转动过程中能够调整沿第二运动方向X2的行程，避免第二导向齿条282与其它结构发生干涉而被限制运动。第一壳体110以及第二壳体120分别在第一导向齿条281和第二导向齿条282的作用下，沿着设定轨迹能够相对于支架250进行对称旋转运动，有利于折叠式电子设备500在折叠或展开的过程中更加顺畅，同时实现柔性屏模组300的平顺形变。
以下结合上述的结构，并请同时参阅图13、图14以及图15，以下将以第一承载单元211以及第二承载单元221的数量均为三个为例，对折叠式电子设备500在折叠/展开的运动过程中的工作原理进行阐述，为了便于后续的说明，三个第一承载单元211分别命名为第一单元213、第二单元214以及第三单元215，三个第二承载单元221分别命名为第四单元222、第五单元223以及第六单元224，具体工作原理如下：
由展平状态切换至叠合状态时的工作原理：
如图13所示，电子设备500处于展平状态，此时，第一单元213、第二单元214、第三单元215、第四单元222、第五单元223以及第六单元224处于并排展平的状态，当用户将处于展平状的电子设备500进行弯折时，例如，当用户同时翻转第一壳体110和第二壳体120时，如图13和图14所示，第一壳体110以及第二壳体120分别沿第一周向A和第二周向B转动，其中第一周向A与第二周向B相反，与第一壳体110连接的第一导向齿条281随着第一壳体110沿第一周向A转动，第一导向齿条281驱动第一齿轮2311沿第二周向B转动，第一齿轮2311在转动时，带动第一联动杆2411与其连接的一端沿第二周向B转动，第一联动杆2411带动第一支撑杆2412拉动与其连接的第三单元215朝向支架250移动，与第一齿轮2311连接的第一联动杆2411沿第一齿轮2311以及第三齿轮2312的中心连线方向平移，并驱使第三齿轮2312沿第二周向B转动，第二单元214受到与其连接的第一支撑杆2412拉动力开始移动，且第二单元214与第三单元215之间相对转动并形成一定夹角，与第三齿轮2312连接的第一支撑杆2412拉动第一单元213相对于第一壳体110沿第一周向A转动，第一单元213与第二单元214之间也形成一定的夹角。
相应地，与第二壳体120连接的第二导向齿条282随着第二壳体120沿第二周向B转动，第二导向齿条282驱使第二齿轮2321沿第一周向A转动，第二齿轮2321带动第二联动杆2421与其连接的一端沿第一周向A转动，第二联动杆2421通过三个第二支撑杆2422依次带动第六单元224、第五单元223以及第四单元222朝向支架250移动，第六单元224与第五单元223相对转动并形成夹角，第五单元223与第四单元222相对转动并形成夹角。
当第一壳体110与第二壳体120相对转动至互成夹角状时，例如，半展开状态时，柔性屏模组300的弯折区形成弧面，柔性屏模组300的弯折区弯曲并形成弧面，第一单元213、第二单元214、第三单元215、第四单元222、第五单元223以及第六单元224共同形成与弧面相适配的近似弧形的支撑面，从而进行柔性屏模组300的弯折区形成有效支撑和保护，实现柔性屏模组300的平顺形变，第一壳体110与第二壳体120在阻尼件270的作用下，可使柔性屏模组300在展开状时也能够维持较为稳固的状态。
如图15所示，当第一壳体110与第二壳体120继续相对转动至叠合状时，第一单元213、第二单元214、第三单元215、第四单元222、第五单元223以及第六单元224共同围成空仓212，第一单元 213、第二单元214、第三单元215、第四单元222、第五单元223以及第六单元224共同形成近似U型的支撑面，第一单元213与第一壳体110连接的端部与第四单元222与第二壳体120连接的端部相互靠拢并间隔，U型的支撑面能够对柔性屏模组300弯折区的外侧进行有效的支撑，折叠机构200中的各结构通过设定的运动轨迹在折叠过程中为柔性屏模组300提供有效支撑，且防止柔性屏模组300因过折而失效，实现柔性屏模组300的平顺形变。
由叠合状态切换至展平状态时的工作原理：
当用户将叠合的电子设备500进行展平时，第一导向齿条281随着第一壳体110沿第二周向B转动，第二导向齿条282随着第二壳体120沿第一周向A转动，以分别驱使第一齿轮2311沿第一周向A转动以及第二齿轮2321沿第二周向B转动，第一齿轮2311驱使第一联动杆2411带动第一支撑杆2412沿与上述相反的方向移动，第二齿轮2321驱使第二联动杆2421带动第二支撑杆2421沿与上述相反的方向移动，从而使得第一单元213、第二单元214、第三单元215、第四单元222、第五单元223以及第六单元224转动至并排展平的状态。当柔性屏模组300处于全屏180°工作状态时，第一壳体110与第二壳体120在折叠机构200的支撑作用下，可以保持稳固的展平状态，柔性屏模组300的显示面在折叠机构200的支撑作用下展开为一平面。
本申请实施例提供的折叠机构200、壳体组件400以及内折叠式电子设备500，柔性屏模组300设置于第一壳体110、折叠机构200以及第二壳体120时，第一壳体110与第二壳体120在外力作用时相对展开时，联动组件240借由传动组件230驱使第一承载组210以及第二承载组220相对转动，当第一壳体110与第二壳体120呈展开状时，第一承载组210与第二承载组220处于并列的展平状态，并对柔性屏模组300的弯折区形成支撑以使弯折区保持平整。
进一步地，当第一壳体110与第二壳体120在外力作用下相互折叠过程中，第一承载组210与第二承载组220互呈角度，使得第一承载组210与第二承载组220共同限定形成空仓212，空仓212便于容纳柔性屏模组300在弯折时形成的弯折区，弯折区隐藏在空腔内，第一承载组210以及第二承载组220能够为柔性屏模组300提供有效的支撑，不会对柔性屏模组300产生挤压或拉力，同时满足柔性屏模组300的最小弯曲半径要求，防止柔性屏模组300的弯折区过折而导致柔性屏模组300失效。
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精神和范围，均应包含在本申请的保护范围之内。

Claims (20)

  1. 一种折叠机构，其特征在于，应用于内折叠式电子设备，所述内折叠式电子设备包括壳体组件以及柔性屏模组，所述柔性屏模组设于所述壳体组件，所述壳体组件包括可相对转动的第一壳体和第二壳体，所述折叠机构包括：
    支架，适于连接所述第一壳体与所述第二壳体中的至少一者；
    第一承载组和第二承载组，所述第一承载组适于可转动地连接于所述第一壳体，所述第二承载组适于可转动地连接于所述第二壳体；
    传动组件，设置于所述支架；
    联动组件，连接于所述传动组件与所述第一承载组之间，并连接于所述传动组件与所述第二承载组之间，所述传动组件被配置为在外力作用时经由所述联动组件带动所述第一承载组以及所述第二承载组相对转动，以使所述第一承载组与所述第二承载组选择性地处于并列的展平状态或者互成角度的收合状态，在所述收合状态时，所述第一承载组与所述第二承载组共同限定形成用于部分地收容所述柔性屏模组的空仓。
  2. 根据权利要求1所述的折叠机构，其特征在于，所述支架与所述第一承载组以及所述第二承载组相对设置，所述第一承载组以及所述第二承载组与所述支架之间形成安装空间，所述联动组件和所述传动组件的至少部分结构设置于所述安装空间内。
  3. 根据权利要求1-2中任一项所述的折叠机构，其特征在于，所述联动组件包括第一连杆组和第二连杆组，所述传动组件包括第一传动组和第二传动组，所述第一连杆组连接于所述第一传动组与所述第一承载组之间，所述第二连杆组连接于所述第二传动组与所述第二承载组之间，所述第一传动组以及所述第二传动组在外力作用时分别带动所述第一连杆组以及所述第二连杆组转动。
  4. 根据权利要求3所述的折叠机构，其特征在于，所述第一传动组包括第一齿轮，所述第一齿轮可转动地连接于所述支架；所述第一连杆组包括第一联动杆和第一支撑杆，所述第一联动杆可转动地连接于所述第一齿轮，所述第一支撑杆连接于所述第一联动杆以及所述第一承载组之间。
  5. 根据权利要求4所述的折叠机构，其特征在于，所述第二传动组包括第二齿轮，所述第二齿轮可转动地连接于所述支架，且所述第二齿轮的转动轴线与所述第一齿轮的转动轴线平行；所述第二连杆组件包括第二联动杆以及第二支撑杆，所述第二联动杆可转动地连接于所述第二齿轮，所述第二支撑杆连接于所述第二联动杆以及所述第二承载组之间。
  6. 根据权利要求5所述的折叠机构，其特征在于，所述第一承载组包括多个依次枢接的第一承载单元，所述第一支撑杆为多个，每个所述第一支撑杆连接于对应的第一承载单元以及第一联动杆之间，在所述第一齿轮的驱使下相邻两个所述第一承载单元能够相对转动；
    所述第二承载组包括多个依次枢接的第二承载单元，所述第二支撑杆为多个，每个所述第二支撑杆连接于对应的第二承载单元以及第二联动杆之间，在所述第二齿轮的驱使下相邻两个所述第二承载单元能够相对转动。
  7. 根据权利要求6所述的折叠机构，其特征在于，所述第一传动组包括适于可转动地连接于所述 第一壳体的第三齿轮，所述第二传动组包括适于可转动地连接于所述第二壳体的第四齿轮，所述第三齿轮以及所述第四齿轮的转动轴线均与所述第一齿轮的转动轴线平行，所述第一联动杆可转动地连接于所述第一齿轮与所述第三齿轮之间，所述第二联动杆可转动地连接于所述第二齿轮与所述第四齿轮之间。
  8. 根据权利要求7所述的折叠机构，其特征在于，所述传动组件还包括中间齿轮组，所述中间齿轮组包括彼此啮合的第一中间齿轮和第二中间齿轮，所述第一中间齿轮与所述第二中间齿轮均设于所述第一齿轮与所述第二齿轮之间，所述第一中间齿轮与所述第一齿轮啮合，所述第二中间齿轮与所述第二齿轮啮合。
  9. 根据权利要求5-8中任一项所述的折叠机构，其特征在于，所述折叠机构还包括适于与所述第一壳体连接的第一导向齿条和适于与所述第二壳体连接的第二导向齿条，所述第一导向齿条与所述第一齿轮啮合；所述第二导向齿条与所述第二齿轮啮合。
  10. 根据权利要求9所述的折叠机构，其特征在于，所述第一导向齿条包括第一导向部以及第一驱动部，所述第一驱动部设有与所述第一齿轮啮合的齿条；所述第一导向部适于与所述第一壳体可滑动连接，并限定所述第一导向齿条相对于所述第一壳体的第一运动方向；所述第一运动方向与第一齿轮的转动轴线相交；
    所述第二导向齿条包括第二导向部以及第二驱动部，所述第二驱动部设有与所述第二齿轮啮合的齿条；所述第二导向部适于与所述第二壳体可滑动连接，并限定所述第二导向齿条相对于所述第二壳体的第二运动方向；所述第二运动方向与第一齿轮的转动轴线相交。
  11. 根据权利要求10所述的折叠机构，其特征在于，所述第一导向部包括第一导向面，所述第一导向面与所述第一壳体的导向结构配合，以限定所述第一导向齿条的运动方向；所述第二导向部包括第二导向面，所述第二导向面与所述第二壳体的导向结构配合，以限定所述第二导向齿条的运动方向。
  12. 根据权利要求9-10中任一项所述的折叠机构，其特征在于，所述第一驱动部具有远离所述第一导向部的第一曲面，所述第一齿条设置于所述第一曲面，所述第一曲面的曲面弧度限定所述第一壳体的运动轨迹；所述第二驱动部具有远离所述第二导向部的第二曲面，所述第二齿条设置于所述第二曲面，所述第二曲面的曲面弧度限定所述第二壳体的运动轨迹。
  13. 根据权利要求9所述的折叠机构，其特征在于，所述折叠机构还包括第一弹性件和第二弹性件，所述第一弹性件用于设置在所述第一壳体与所述第一导向齿条之间以向所述第一导向齿条提供运动的复位回复力；所述第二弹性件用于设置在所述第二导向齿条与所述第二壳体之间以向对所述第二导向齿条提供运动的复位回复力。
  14. 根据权利要求10所述的折叠机构，其特征在于，所述第一导向齿条设有第一限位部，所述第一限位部设于第一导向部远离第一驱动部的一端，所述第一限位部适于与所述第一壳体限位配合，并用于限定所述第一导向齿条的滑动行程；所述第二导向齿条设有第二限位部，所述第二限位部设于所述第二导向部远离所述第二驱动部的一端，所述第二限位部适于与所述第二壳体限位配合，并用于限 定所述第二导向齿条的滑动行程。
  15. 根据权利要求4-8中任一项所述的折叠机构，其特征在于，所述支架设有转轴，所述第一齿轮转动连接于所述转轴，所述折叠机构还包括阻尼件，所述阻尼件设置于所述转轴并与所述第一齿轮相抵以形成预设转动阻尼力。
  16. 根据权利要求15所述的折叠机构，其特征在于，所述第一齿轮包括内周壁，所述内周壁围成转动孔，所述转轴容置于所述转动孔，所述阻尼件包括固定部以及弹性形变部，所述固定部固定于所述转轴，所述弹性形变部相对所述固定部弯曲并与所述转轴相间隔，所述内周壁设有用于与所述弹性形变部相配合的配合部。
  17. 根据权利要求1-8中任一项所述的折叠机构，其特征在于，所述第一承载组包括多个依次枢接的第一承载单元，所述第二承载组包括多个依次枢接的第二承载单元，所述第一承载单元的数量与所述第二承载单元的数量相同，且所述第一承载组与所述第二承载组关于一对称面呈对称分布。
  18. 一种壳体组件，其特征在于，包括第一壳体、第二壳体以及如权利要求1-17任一项所述的折叠机构，所述第一承载组可转动地连接于所述第一壳体，所述第二承载组可转动地连接于所述第二壳体，所述支架连接于所述第一壳体与所述第二壳体之间，以使所述第一壳体与所述第二壳体可选择性地相互折叠或展开，所述支架与所述第一承载组以及所述第二承载组相对。
  19. 一种内折叠式电子设备，其特征在于，包括如权利要求18所述的壳体组件以及柔性屏模组，所述柔性屏模组设置于所述第一壳体、所述折叠机构以及所述第二壳体。
  20. 根据权利要求19所述的内折叠式电子设备，其特征在于，所述柔性屏模组包括显示功能层以及缓冲层，所述缓冲层设置于所述折叠机构与所述显示功能层之间。
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