WO2024159902A1 - 折叠机构及电子设备 - Google Patents

折叠机构及电子设备 Download PDF

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Publication number
WO2024159902A1
WO2024159902A1 PCT/CN2023/135608 CN2023135608W WO2024159902A1 WO 2024159902 A1 WO2024159902 A1 WO 2024159902A1 CN 2023135608 W CN2023135608 W CN 2023135608W WO 2024159902 A1 WO2024159902 A1 WO 2024159902A1
Authority
WO
WIPO (PCT)
Prior art keywords
connecting rod
rotating gear
facing
spindle assembly
assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/135608
Other languages
English (en)
French (fr)
Inventor
王雪婵
沈贺文
廖立
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP23919466.5A priority Critical patent/EP4560432A4/en
Publication of WO2024159902A1 publication Critical patent/WO2024159902A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/10—Arrangements for locking
    • F16C11/103—Arrangements for locking frictionally clamped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/12—Pivotal connections incorporating flexible connections, e.g. leaf springs
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681—Details related solely to hinges
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
    • H04M1/022—The hinge comprising two parallel pivoting axes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel

Definitions

  • the present application relates to the field of terminal technology, and in particular to a folding mechanism and an electronic device.
  • the existing folding mechanism generates torque through the contact between the rotating moving cam and the fixed cam.
  • the cam provides rotation resistance when it rotates uphill and provides rotation power when it rotates downhill, so that the whole machine has the function of self-expansion and closing.
  • the hovering function only relies on the damping force generated by the top surface of the concave cam to match the interval, which is not enough to overcome the rebound force of the screen and cannot achieve free hovering.
  • the present application provides a folding mechanism and an electronic device, which can realize free hovering of a screen.
  • the present application provides a folding mechanism, comprising a first spindle assembly, a first push rod mechanism and a second push rod mechanism, wherein the first push rod mechanism and the second push rod mechanism are located on the same side of the first spindle assembly, and the first push rod mechanism and the second push rod mechanism are respectively connected to opposite ends of the first spindle assembly.
  • the first push rod mechanism comprises a first connecting rod, one end of which is rotatably connected to the first spindle assembly.
  • the first spindle assembly is provided with a plurality of circumferentially distributed first recessed portions at one end facing the first connecting rod, the surface of the first recessed portion facing the first connecting rod is an inclined surface, and the first connecting rod is provided with a first protrusion corresponding to the first recessed portion on one side facing the first spindle assembly, each first protrusion is located in the corresponding first recessed portion, the surface of the first protrusion facing the first recessed portion is in contact with the surface of the first recessed portion facing the first protrusion, and each first protrusion can move relative to the first recessed portion along the extension direction of the corresponding first recessed portion.
  • the second push rod mechanism comprises a second connecting rod, one end of which is rotatably connected to the first spindle assembly.
  • One end of the first spindle assembly facing the second connecting rod is provided with a plurality of circumferentially distributed second recessed portions, the surface of the second recessed portion facing the second connecting rod is an inclined surface, and the side of the second connecting rod facing the first spindle assembly is provided with second protrusions corresponding to the second recessed portions one by one, each second protrusion is located in the corresponding second recessed portion, the surface of the second protrusion facing the second recessed portion is in contact with the surface of the second recessed portion facing the second protrusion, and each second protrusion can move relative to the second recessed portion along the extension direction of the corresponding second recessed portion.
  • the folding mechanism provided by the present application the first connecting rod and the second connecting rod are respectively connected to the first spindle assembly for rotation, the first spindle assembly is provided with a plurality of first recessed parts at one end of the first connecting rod, the first connecting rod is provided with a first protrusion corresponding to the plurality of first recessed parts one by one, the first spindle assembly is provided with a plurality of second recessed parts at one end of the second connecting rod, and the second connecting rod is provided with a second protrusion corresponding to the plurality of second recessed parts one by one.
  • the surface of the first protrusion fits the surface of the first recessed part, and since the surface of the first recessed part is an inclined surface, that is, the cross-sectional shape of the first recessed part is a triangle, it can provide a large friction force, and the first protrusion can move along the extension direction of the first recessed part, and when the first connecting rod rotates relative to the first spindle assembly, it can ensure that the first protrusion is always in contact with the first recessed part.
  • the second protrusion can also move along the extension direction of the second recessed part, and when the second connecting rod rotates relative to the first spindle assembly, it can ensure that the second protrusion is always in contact with the second recessed part.
  • the folding mechanism in the present application further includes a second spindle assembly, a third push rod mechanism and a fourth push rod mechanism, the second spindle assembly and the first spindle assembly are arranged oppositely, the third push rod mechanism and the fourth push rod mechanism are located on the side of the second spindle assembly facing the first spindle assembly, and the third push rod mechanism and the fourth push rod mechanism are respectively connected to the opposite ends of the second spindle assembly.
  • the third push rod mechanism includes a third connecting rod, and one end of the third connecting rod is rotatably connected to the second spindle assembly.
  • the second spindle assembly is provided with a plurality of circumferentially distributed third recessed parts at one end facing the third connecting rod, and the surface of the third recessed part facing the third connecting rod is an inclined surface, and the third connecting rod is provided with a third protrusion corresponding to the third recessed part on one side facing the second spindle assembly, each third protrusion is located in the corresponding third recessed part, the surface of the third protrusion facing the third recessed part is fitted with the surface of the third recessed part facing the third protrusion, and each third protrusion can move relative to the third recessed part along the extension direction of the corresponding third recessed part.
  • the fourth push rod mechanism includes a fourth connecting rod, and one end of the fourth connecting rod is rotatably connected to the second spindle assembly.
  • the end of the second spindle assembly facing the fourth connecting rod is provided with a plurality of circumferentially distributed fourth recessed portions, and the surface of the fourth recessed portion facing the fourth connecting rod is inclined.
  • a fourth protrusion corresponding to the fourth recess is disposed on the side of the fourth connecting rod facing the second spindle assembly, each fourth protrusion is located in the corresponding fourth recess, the surface of the fourth protrusion facing the fourth recess is in contact with the surface of the fourth recess facing the fourth protrusion, and each fourth protrusion can move relative to the fourth recess along the extension direction of the corresponding fourth recess.
  • the third folding mechanism and the fourth folding mechanism are symmetrically arranged with the first folding mechanism and the second folding mechanism, that is, the folding mechanism includes two groups of folding mechanisms, which can provide better folding performance while realizing a compact folding mechanism structure, and provide greater friction, thereby better realizing the hovering function.
  • the folding mechanism in the present application is further provided with a first pin shaft, which passes through the first spindle assembly, the first connecting rod, the third connecting rod and the second spindle assembly in sequence.
  • the first pin shaft is fixed to the first spindle assembly and to the second spindle assembly, the first connecting rod can rotate relative to the first pin shaft around the axial direction of the first pin shaft, and the third connecting rod can rotate relative to the first pin shaft around the axial direction of the first pin shaft.
  • the folding mechanism in the present application is further provided with a second pin, which passes through the first spindle assembly, the second connecting rod, the fourth connecting rod and the second spindle assembly in sequence.
  • the second pin is fixed to the first spindle assembly and the second spindle assembly, the second connecting rod can rotate relative to the second pin around the axial direction of the second pin, and the fourth connecting rod can rotate relative to the second pin around the axial direction of the second pin.
  • the folding mechanism in the present application is also provided with a first synchronization mechanism, which includes a first rotating gear, a second rotating gear, and a first synchronization gear assembly located between the first rotating gear and the second rotating gear and meshing with the first rotating gear and the second rotating gear.
  • the first rotating gear is fixedly connected to the first connecting rod
  • the second rotating gear is fixedly connected to the second connecting rod
  • the first rotating gear can rotate relative to the first main shaft assembly
  • the first synchronization gear assembly rotates synchronously with the first rotating gear to achieve synchronous reverse movement of the first rotating gear and the second rotating gear.
  • the first synchronization mechanism by providing the first synchronization mechanism, the synchronous reverse rotation of the first connecting rod and the second connecting rod can be achieved, thereby better realizing the folding function of the folding mechanism.
  • the first rotating gear is fixed to the side of the first connecting rod facing the second connecting rod
  • the second rotating gear is fixed to the side of the second connecting rod facing the first connecting rod
  • the first synchronous gear assembly is located between the first connecting rod and the second connecting rod.
  • the folding mechanism in the present application is further provided with a second synchronization mechanism
  • the second synchronization mechanism includes a third rotating gear, a fourth rotating gear, and a second synchronization gear located between the third rotating gear and the fourth rotating gear and meshing with the third rotating gear and the fourth rotating gear.
  • the third rotating gear is fixedly connected to the third connecting rod
  • the fourth rotating gear is fixedly connected to the fourth connecting rod
  • the third rotating gear can rotate relative to the first main shaft assembly
  • the second synchronization gear assembly rotates synchronously with the second rotating gear to realize the synchronous reverse movement of the third rotating gear and the fourth rotating gear.
  • the synchronous reverse rotation of the third connecting rod and the fourth connecting rod can be realized, thereby better realizing the folding function of the folding mechanism.
  • the third rotating gear is fixed to a side of the third connecting rod facing the fourth connecting rod
  • the fourth rotating gear is fixed to a side of the fourth connecting rod facing the third connecting rod
  • the second synchronous gear assembly is located between the third connecting rod and the fourth connecting rod.
  • the folding mechanism in the present application is further provided with a snap ring, which is relatively fixed to the first spindle assembly and the second spindle assembly.
  • the snap ring can position the first pin and the second pin, thereby stabilizing the overall structure of the folding mechanism and improving the reliability of the electronic device.
  • the present application provides an electronic device, comprising a first housing, a second housing, a flexible screen, and a folding mechanism as in any possible implementation of the first aspect, wherein the folding mechanism connects the first housing and the second housing so that the first housing and the second housing can be relatively folded and unfolded.
  • the flexible screen can be laid on the first housing, the second housing, and the folding mechanism, and the flexible screen is fixedly connected to the first housing and the second housing.
  • the electronic device in the present application is provided with a folding mechanism with a hovering function, so that the hovering function of the electronic device can be realized, thereby improving the practicality of the electronic device.
  • FIG. 1a is an exploded view of an electronic device provided by an embodiment of the present application.
  • FIG1b is a back view of an electronic device provided by an embodiment of the present application.
  • FIG2 is a schematic diagram of the structure of an electronic device provided by an embodiment of the present application when it is in a flattened state;
  • 3a and 3b are schematic structural diagrams of an electronic device provided by an embodiment of the present application when it is in an intermediate state
  • FIG4 is a schematic diagram of the structure of an electronic device provided by an embodiment of the present application when it is in a closed state;
  • FIG5 is a schematic diagram of an exploded structure of a folding mechanism in an embodiment of the present application.
  • FIG6 is a schematic structural diagram of a folding mechanism in an embodiment of the present application.
  • FIG7 is an exploded schematic diagram of a partial structure of a folding mechanism in an embodiment of the present application.
  • FIG8 is an exploded schematic diagram of the folding mechanism in FIG6 ;
  • FIG9 is a schematic structural diagram of the first spindle assembly in FIG6 ;
  • FIG10 is a schematic structural diagram of the first push rod mechanism in FIG6 ;
  • FIG11 is a schematic diagram of a cross-sectional structure of a first recessed portion
  • FIG. 12 is a schematic diagram of the cross-sectional structure of the first rotating groove.
  • references to "one embodiment” or “some embodiments” etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application.
  • the phrases “in one embodiment”, “in some embodiments”, “in some other embodiments”, “in some other embodiments”, etc. appearing in different places in this specification do not necessarily all refer to the same embodiment, but mean “one or more but not all embodiments", unless otherwise specifically emphasized in other ways.
  • the terms “including”, “comprising”, “having” and their variations all mean “including but not limited to”, unless otherwise specifically emphasized in other ways.
  • the embodiments of the present application can provide a folding mechanism and an electronic device, which can reduce the crease of the screen when the screen of the electronic device is flattened.
  • the folding mechanism and the electronic device will be described in detail below in conjunction with specific embodiments.
  • the electronic device in the present application may be a foldable mobile phone, a foldable tablet, a foldable computer, etc., and the embodiments of the present application are not limited to this.
  • Figure 1a is a structural schematic diagram of a folded electronic device in an embodiment of the present application
  • Figure 2 is a structural schematic diagram of a flattened electronic device in Figure 1a.
  • the electronic device 1 may include a first shell 10, a second shell 20, a flexible screen 30 and a folding mechanism 100.
  • the first shell 10 and the second shell 20 are arranged on both sides of the folding mechanism 100 and are respectively connected to the folding mechanism 100, and the folding mechanism 100 can move so that the first shell 10 and the second shell 20 are relatively folded or relatively unfolded.
  • the first shell 10 and the second shell 20 can specifically be the middle frame of the electronic device, or they can be the overall collective term for the middle frame and the outer shell of the electronic device.
  • Figure 1b is a schematic diagram of the back structure of an electronic device provided in an embodiment of the present application.
  • the first housing 10 has a first surface 11 and a second surface 12 disposed opposite to the first surface 11, and the second housing 20 has a third surface 21 and a fourth surface 22 disposed opposite to the third surface 21.
  • the flexible screen 30 is laid on the first surface of the first housing 10. 11 , the third surface 21 of the second shell 20 and the folding mechanism 100 , the first shell 10 and the second shell 20 can be used together to support the flexible screen 30 .
  • the folding mechanism 100 may include a main shaft assembly 110, a first folding assembly 101 and a second folding assembly 102, wherein the first folding assembly 101 and the second folding assembly 102 are respectively connected to opposite sides of the main shaft assembly 110, and the first folding assembly 101 and the second folding assembly 102 can rotate relative to the main shaft assembly 110 to achieve the folding and unfolding functions of the folding mechanism 100.
  • the first folding assembly 101 is disposed on one side of the first housing 10
  • the second folding assembly 102 is disposed on one side of the second housing 20.
  • Fig. 2 is a schematic diagram of the structure of the electronic device in which the first housing 10 and the second housing 20 are relatively unfolded to a flat state.
  • the first surface 11 of the first housing 10 and the third surface 21 of the second housing 20 are in the same plane, and at this time, the angle between the first surface 11 and the third surface 21 can be approximately 180° (a certain angle tolerance is also allowed, and the angle between the first surface 11 and the third surface 21 is, for example, 165°, 177° or 185°).
  • Figure 3a shows a schematic diagram of the structure of an electronic device in which the first shell 10 and the second shell 20 are relatively rotated (unfolded or folded) to an intermediate state.
  • Figure 3b shows a side view of an electronic device in which the first shell 10 and the second shell 20 are relatively rotated (unfolded or folded) to an intermediate state.
  • the flexible screen 30 is omitted in Figure 3a to facilitate the display of the shapes of the two shells in the intermediate state.
  • the electronic device can be in any state between the flattened state and the closed state.
  • the angle between the first surface 11 of the first shell 10 and the third surface 21 of the second shell 20 can be, for example, 130° to 150°.
  • FIG. 4 is a schematic diagram of the structure of the electronic device in which the first housing 10 and the second housing 20 are folded relative to each other to a closed state.
  • the first surface 11 of the first housing 10 and the third surface 21 of the second housing 20 face each other or depart from each other (specifically related to the folding method), and at this time, there may be a small angle between the first surface 11 of the first housing 10 and the third surface 21 of the second housing 20 or they may be parallel to each other so that the two housings can be completely closed (a certain angle tolerance is also allowed).
  • the flexible screen 30 continuously covers the first surface 11 of the first shell 10 of the electronic device 1, the folding mechanism 100 and the third surface 21 of the second shell 20.
  • the flexible screen 30 can be divided into continuous areas A, B, C, D and E, wherein areas B, C, and D include the bent parts when folded.
  • Area A corresponds to the first surface 11 of the first shell 10, and it can be fixedly connected to the first surface 11 of the first shell 10
  • area E corresponds to the third surface 21 of the second shell 20, and it can be fixedly connected to the third surface 21 of the second shell 20.
  • the dividing lines of the three areas B, C, and D shown in the figure are only exemplary, and the dividing lines of the areas B, C, and D can be adjusted according to the design of the specific folding mechanism 100.
  • FIG. 5 is a schematic diagram of an exploded structure of a folding mechanism in an embodiment of the present application.
  • the first folding assembly 101 may include a first support plate 1011, a first housing fixing frame 1012, and a first push rod mechanism 120, the first housing fixing frame 1012 may be fixedly connected to the first housing 10, the first support plate 1011 is rotatably connected to the first housing fixing frame 1012, and the first push rod mechanism 120 is slidably connected to the first housing fixing frame 1012.
  • the second folding assembly may include a second support plate 1021, a second housing fixing frame 1022, and a second push rod mechanism 130, the second housing fixing frame 1022 is fixedly connected to the second housing 20, the second support plate 1021 is rotatably connected to the second housing fixing frame 1022, and the second push rod mechanism 130 is slidably connected to the second housing fixing frame 1022.
  • the side of the first support plate 1011 away from the first housing fixing frame 1012 and the side of the second support plate 1021 away from the second housing fixing frame 1022 can be used to support the flexible screen 30.
  • the first shell fixing frame 1012 When the first shell 10 is folded from the flat state relative to the spindle assembly 110, the first shell fixing frame 1012 can be driven to rotate, and the first support plate 1011 can rotate relative to the first shell fixing frame 1012 to drive the flexible screen 30 to rotate synchronously with the first shell 10, and the first push rod mechanism 120 can move relative to the first shell fixing frame 1012 along the arrangement direction of the first shell fixing frame 1012 and the first push rod mechanism 120.
  • the second support plate 1021 can drive the flexible screen 30 to rotate synchronously with the second shell 20
  • the second push rod mechanism 130 can move relative to the second shell fixing frame 1022 along the arrangement direction of the second shell fixing frame 1022 and the second push rod mechanism 130.
  • the first support plate 1011 can rotate relative to the first housing 10, and the second support plate 1021 can rotate relative to the second housing 20, when the electronic device 1 is in a folded state, the first support plate 1011 and the second support plate 1021 can reach a specified position to cooperate to form a water drop-shaped structure. That is, the distance between the first support plate 1011 and the second support plate 1021 at the position close to the spindle assembly 110 is greater than the distance between the first support plate 1011 and the second support plate 1021 at the position far from the spindle assembly 110, so that the first support plate 1011 and the second support plate 1021 at the position close to the spindle assembly 110 can accommodate the accommodation space of the regions B, C, and D of the flexible screen 30.
  • the folding mode of the electronic device 1 in this embodiment is inward folding.
  • FIG. 5 of the present application is only a schematic diagram of a folding mechanism, and the folding mechanism in the embodiment of the present application may also be other
  • the folding mechanism may further include a third folding component and a fourth folding component.
  • the folding mechanism When it is applied to an electronic device, it only needs to be able to realize the folding and unfolding of the electronic device.
  • Fig. 6 is a structural schematic diagram of a folding mechanism in an embodiment of the present application
  • Fig. 7 is an exploded schematic diagram of a part of the structure of the folding mechanism in an embodiment of the present application.
  • the folding mechanism 200 in this embodiment includes a first spindle assembly 210, a second spindle assembly 220, a first push rod mechanism 230, a second push rod mechanism 240, a third push rod mechanism 250 and a fourth push rod mechanism 260.
  • the first spindle assembly 210 and the second spindle assembly 220 are arranged relative to each other, the first push rod mechanism 230 and the second push rod mechanism 240 are located on the side of the first spindle assembly 210 facing the second spindle assembly 220, and the first push rod mechanism 230 and the second push rod mechanism 240 are respectively located on the opposite sides of the first spindle assembly 210.
  • the third push rod mechanism 250 and the fourth push rod mechanism 260 are located on the side of the second spindle assembly 220 facing the first spindle assembly 210, and the third push rod mechanism 250 and the fourth push rod mechanism 260 are respectively located on the opposite sides of the second spindle assembly 220.
  • the first push rod mechanism 230 and the second push rod mechanism 240 are both rotatably connected to the first main shaft assembly 210, and a first synchronization mechanism 270 is provided between the first push rod mechanism 230 and the second push rod mechanism 240 so that the first push rod mechanism 230 and the second push rod mechanism 240 can rotate synchronously.
  • the third push rod mechanism 250 and the fourth push rod mechanism 260 are both rotatably connected to the second main shaft assembly 220, and a second synchronization mechanism 280 is provided between the third push rod mechanism 250 and the fourth push rod mechanism 260 so that the third push rod mechanism 250 and the fourth push rod mechanism 260 can rotate synchronously.
  • the first synchronization mechanism 270 and the second synchronization mechanism 280 brackets can also be provided with a damping assembly 290, which can be used to make the first synchronization mechanism 270 and the second synchronization mechanism 280 work simultaneously, so that each push rod mechanism works simultaneously.
  • FIG. 8 is an exploded schematic diagram of the folding mechanism in FIG. 6,
  • FIG. 9 is a structural schematic diagram of the first spindle assembly in FIG. 6
  • FIG. 10 is a structural schematic diagram of the first push rod mechanism in FIG. 6,
  • FIG. 11 is a cross-sectional structural schematic diagram of the first recessed portion.
  • the first push rod mechanism 230 includes a first connecting rod 231, and the first connecting rod 231 is rotatably connected to the first spindle assembly 210.
  • the first spindle assembly 210 is provided with a plurality of circumferentially distributed first recessed portions 211 at one end facing the first connecting rod 231, and the surface of the first recessed portion 211 facing the first connecting rod 231 is an inclined surface, that is, along the extension direction of the first recessed portion 211, the height from one end to the other end of the first recessed portion 211 gradually decreases, so that the cross section of the first recessed portion 211 is a triangular structure.
  • One end of the first connecting rod 231 facing the first spindle assembly 210 is provided with a first protrusion 2311 corresponding to the plurality of first recesses 211, and each first protrusion 2311 is located in the corresponding first recess 211.
  • each first protrusion 2311 facing the first recess 211 is an inclined surface, and the inclined surface is exactly opposite to the inclined surface shape of the first recess 211. It can be understood that in the clockwise direction, the height of the inclined surface of the first recess 211 is from high to low, and the height of the inclined surface of the first protrusion 2311 is from low to high, so that the surface of the first protrusion 2311 can be fitted with the surface of the first recess 211.
  • the dimension of the first recessed portion 211 in the extension direction is greater than the dimension of the first protruding portion 2311 in the extension direction.
  • the first protruding portion 2311 can also rotate relative to the corresponding first recessed portion 211 along the extension direction of the first recessed portion 211.
  • the first protruding portion 2311 is always in close contact with the surface of the first recessed portion 211, and the end of the first recessed portion 211 can also limit the first protruding portion 2311. This can provide sufficient hovering force for the folding mechanism 200, thereby ensuring the long-term stable hovering ability of the folding mechanism 200.
  • the second push rod mechanism 240 includes a second connecting rod 241, which is rotatably connected to the first spindle assembly 210.
  • the first spindle assembly 210 is provided with a plurality of circumferentially distributed second recessed portions 212 at one end facing the second connecting rod 241, and the surface of the second recessed portion 212 facing the second connecting rod 241 is an inclined surface, that is, the cross section of the second recessed portion 212 is a triangular structure.
  • the second connecting rod 241 is provided with a second protruding portion 2411 corresponding to the plurality of second recessed portions 212 at one end facing the first spindle assembly 210, and each second protruding portion 2411 is located in the corresponding second recessed portion 212.
  • each second protrusion 2411 facing the second recessed portion 212 is a slope, and the slope is exactly opposite to the slope of the second recessed portion 212. It can be understood that along the clockwise direction, the height of the slope of the second recessed portion 212 is from high to low, and the height of the slope of the second protrusion 2411 is from low to high, so that the surface of the second protrusion 2411 can fit the surface of the second recessed portion 212. In addition, the dimension of the second recessed portion 212 in the extension direction is greater than the dimension of the second protruding portion 2411 in the extension direction.
  • the second protruding portion 2411 can also rotate relative to the corresponding second recessed portion 212 along the extension direction of the second recessed portion 212.
  • the second protruding portion 2411 is always in close contact with the surface of the second recessed portion 212, and the end of the second recessed portion 212 can also limit the second protruding portion 2411. This can provide sufficient hovering force for the folding mechanism 200, thereby ensuring the long-term stable hovering capability of the folding mechanism 200.
  • the third push rod mechanism 250 is located on the same side as the first push rod mechanism 230.
  • the third push rod mechanism 250 includes a third connecting rod 251.
  • the third connecting rod 251 is rotatably connected to the second spindle assembly 220.
  • the second spindle assembly 220 is provided with a plurality of circumferentially distributed third recessed portions 221 at one end facing the third connecting rod 251.
  • the surface of the third recessed portion 221 facing the third connecting rod 251 is an inclined surface, that is, the cross section of the third recessed portion 221 is a triangular shape. Angle structure.
  • the end of the third connecting rod 251 facing the second spindle assembly 220 is provided with a third protrusion 2511 corresponding to the plurality of third recesses 221, and each third protrusion 2511 is located in the corresponding third recess 221.
  • the surface of each third protrusion 2511 facing the third recess 221 is an inclined surface, and the inclined surface is exactly opposite to the inclined surface shape of the third recess 221. It can be understood that in the clockwise direction, the height of the inclined surface of the third recess 221 is from high to low, and the height of the inclined surface of the third protrusion 2511 is from low to high, so that the surface of the third protrusion 2511 can be fitted with the surface of the third recess 221.
  • the dimension of the third recessed portion 221 in the extension direction is greater than the dimension of the third protruding portion 2511 in the extension direction.
  • the third connecting rod 251 rotates relative to the second spindle assembly 220
  • the third protruding portion 2511 can also rotate relative to the corresponding third recessed portion 221 along the extension direction of the third recessed portion 221.
  • the third protruding portion 2511 is always in close contact with the surface of the third recessed portion 221, and the end of the third recessed portion 221 can also limit the third protruding portion 2511. This can provide sufficient hovering force for the folding mechanism 200, thereby ensuring the long-term stable hovering ability of the folding mechanism 200.
  • the fourth push rod mechanism 260 is located on the same side as the second push rod mechanism 240.
  • the fourth push rod mechanism 260 includes a fourth connecting rod 261, which is rotatably connected to the second spindle assembly 220.
  • the second spindle assembly 220 is provided with a plurality of circumferentially distributed fourth recessed portions 222 at one end facing the fourth connecting rod 261.
  • the surface of the fourth recessed portion 222 facing the fourth connecting rod 261 is an inclined surface, that is, the cross section of the fourth recessed portion 222 is a triangular structure.
  • the fourth connecting rod 261 is provided with a fourth protrusion 2611 corresponding to the plurality of fourth recessed portions 222 at one end facing the second spindle assembly 220, and each fourth protrusion 2611 is located in the corresponding fourth recessed portion 222.
  • the surface of each fourth protrusion 2611 facing the fourth recessed portion 222 is a slope, and the slope is exactly opposite to the slope of the fourth recessed portion 222. It can be understood that along the clockwise direction, the height of the slope of the fourth recessed portion 222 is from high to low, and the height of the slope of the fourth protrusion 2611 is from low to high, so that the surface of the fourth protrusion 2611 can fit the surface of the fourth recessed portion 222.
  • the dimension of the fourth recessed portion 222 in the extension direction is greater than the dimension of the fourth protruding portion 2611 in the extension direction.
  • the fourth protruding portion 2611 can also rotate relative to the corresponding fourth recessed portion 222 along the extension direction of the fourth recessed portion 222.
  • the fourth protruding portion 2611 is always in close contact with the surface of the fourth recessed portion 222, and the end of the fourth recessed portion 222 can also limit the fourth protruding portion 2611. This can provide sufficient hovering force for the folding mechanism 200, thereby ensuring the long-term stable hovering capability of the folding mechanism 200.
  • first spindle assembly 210 the first push rod mechanism 230 and the second push rod mechanism 240 is symmetrical to the overall structure of the second spindle assembly 220, the third push rod mechanism 250 and the fourth push rod mechanism 260, and by providing two sets of push rod mechanisms, the stability of the folding mechanism 200 can be improved.
  • multiple push rod mechanisms can also provide greater hovering friction for the folding mechanism 200, thereby better achieving stable hovering.
  • the folding mechanism 200 may also be provided with a first pin shaft 201 and a second pin shaft 202, and the first pin shaft 201 and the second pin shaft 202 are arranged in parallel.
  • the first pin shaft 201 is sequentially inserted through the first spindle assembly 210, the first connecting rod 231, the third connecting rod 251 and the second spindle assembly 220
  • the second pin shaft 202 is sequentially inserted through the first spindle assembly 210, the second connecting rod 241, the fourth connecting rod 261 and the second spindle assembly 220.
  • FIG. 12 is a schematic diagram of the cross-sectional structure of the first rotating groove.
  • the first synchronization mechanism 270 includes a first rotating gear 271, a second rotating gear 272 and a first synchronization gear assembly, and the first synchronization gear assembly may include a first synchronization gear 273 and a second synchronization gear 274.
  • the first rotation gear 271 is fixedly connected to the side of the first connecting rod 231 facing the second connecting rod 241, and the second rotation gear 272 is fixedly connected to the side of the second connecting rod 241 facing the first connecting rod 231.
  • the first synchronization gear assembly is located between the first rotation gear 271 and the second rotation gear 272.
  • the first synchronization gear 273 is meshed with the first rotation gear 271 and the second synchronization gear 274, and the second synchronization gear 274 is meshed with the second rotation gear 272 and the first synchronization gear 273.
  • the first rotation gear 271 can be used to receive an external force and rotate by the force, thereby driving the first push rod mechanism 230 to rotate.
  • the second rotating gear 272 can also receive an external force and rotate by the force, thereby driving the second push rod mechanism 240 to rotate.
  • the first rotating gear 271 rotates clockwise
  • the first synchronous gear 273 rotates counterclockwise
  • the second synchronous gear 274 rotates clockwise
  • the second rotating gear 272 can rotate counterclockwise.
  • the first rotating gear 271 and the second rotating gear 272 can rotate synchronously in the opposite direction, thereby driving the first push rod mechanism 230 and the second push rod mechanism 240 to rotate synchronously in the opposite direction, making it more convenient to fold the screen.
  • the second synchronization mechanism 280 includes a third rotating gear 281, a fourth rotating gear 282 and a second synchronization gear assembly
  • the second synchronization gear assembly may include a third synchronization gear 283 and a fourth synchronization gear 284.
  • the third rotating gear 281 is fixedly connected to the side of the third connecting rod 251 facing the fourth connecting rod 261
  • the fourth rotating gear 282 is fixedly connected to the side of the fourth connecting rod 261 facing the third connecting rod 251
  • the second synchronization gear assembly is located between the third rotating gear 281 and the fourth rotating gear 282.
  • the third synchronization gear 283 is meshed with the third rotating gear 281 and the fourth synchronization gear 284, and the fourth synchronization gear 284 is meshed with the fourth rotating gear 282 and the third synchronization gear 283.
  • the third rotating gear 281 can be used to receive an external force, and rotate by the force, thereby driving the third push rod mechanism 250 to rotate.
  • the fourth rotating gear 282 can also receive an external force, and rotate by the force, thereby driving The fourth push rod mechanism 260 rotates.
  • the third rotating gear 281 rotates clockwise
  • the third synchronous gear 283 rotates counterclockwise
  • the fourth synchronous gear 284 rotates clockwise
  • the fourth rotating gear 282 can rotate counterclockwise.
  • the third rotating gear 281 and the fourth rotating gear 282 can rotate synchronously in the opposite direction, thereby driving the third push rod mechanism 250 and the third push rod mechanism 250 to rotate synchronously in the opposite direction, making it more convenient to fold the screen.
  • the damping assembly 290 includes a third pin shaft 293, a fourth pin shaft 294, a first cam 291, a second cam 292, and a plurality of elastic members 295.
  • the third pin shaft 293 and the fourth pin shaft 294 are located between the first pin shaft 201 and the second pin shaft 202, and are arranged parallel to the third pin shaft 293 and the fourth pin shaft 294 and the first pin shaft 201.
  • One end of the third pin shaft 293 is fixed to the first spindle assembly 210, and the other end is fixed to the second spindle assembly 220.
  • the first synchronous gear 273 is sleeved on one end of the first pin shaft 201 close to the first spindle assembly 210
  • the third synchronous gear 283 is sleeved on one end of the first pin shaft 201 close to the second spindle assembly 220, and both the first synchronous gear 273 and the third synchronous gear 283 can rotate around the axis of the first pin shaft 201.
  • One end of the fourth pin shaft 294 is fixed to the first main shaft assembly 210, and the other end is fixed to the second main shaft assembly 220.
  • the second synchronous gear 274 is sleeved on one end of the fourth pin shaft 294 close to the first main shaft
  • the fourth synchronous gear 284 is sleeved on one end of the fourth pin shaft 294 close to the second main shaft
  • the second synchronous gear 274 and the fourth synchronous gear 284 can both rotate around the axis of the second pin shaft 202.
  • the first cam 291 and the second cam 292 are arranged opposite to each other.
  • the first cam 291 is located on the side of the first connecting rod 231 facing the third connecting rod 251
  • the second cam 292 is located on the side of the third connecting rod 251 facing the first connecting rod 231.
  • the first cam 291 is penetrated by four pins
  • the second cam 292 is penetrated by four pins.
  • a plurality of circumferentially arranged first rotating grooves 2312 are provided on the side of the first connecting rod 231 facing the first cam 291.
  • the first rotating grooves 2312 may be in a "V" shape or a trapezoidal structure.
  • a first rotating portion 2911 corresponding to the plurality of first rotating grooves 2312 is provided on the side of the first cam 291 facing the first connecting rod 231.
  • the shape of the first rotating portion 2911 is similar to that of the first rotating groove 2312, and each first rotating portion 2911 may extend into the corresponding first rotating groove 2312.
  • the second connecting rod 241 is provided with a plurality of circumferentially arranged second rotating grooves 2412 on the side facing the first cam 291.
  • the second rotating grooves 2412 may be in a "V" shape or a trapezoidal structure.
  • the first cam 291 is provided with a second rotating portion 2912 corresponding to the plurality of second rotating grooves 2412 on the side facing the second connecting rod 241.
  • the shape of the second rotating portion 2912 is similar to that of the second rotating grooves 2412, and each second rotating portion 2912 may extend into the corresponding second rotating groove 2412.
  • the third connecting rod 251 is provided with a plurality of circumferentially arranged third rotating grooves 2512 on the side facing the second cam 292.
  • the third rotating grooves 2512 may be in a "V" shape or a trapezoidal structure.
  • the second cam 292 is provided with a third rotating portion 2921 corresponding to the plurality of third rotating grooves 2512 on the side facing the third connecting rod 251.
  • the shape of the third rotating portion 2921 is similar to that of the third rotating grooves 2512, and each third rotating portion 2921 may extend into the corresponding third rotating groove 2512.
  • a plurality of circumferentially arranged fourth rotating grooves 2612 are provided on the side of the fourth connecting rod 261 facing the second cam 292.
  • the fourth rotating grooves 2612 may be in a "V" shape or a trapezoidal structure.
  • a fourth rotating portion 2922 corresponding to the plurality of fourth rotating grooves 2612 is provided on the side of the second cam 292 facing the fourth connecting rod 261.
  • the shape of the fourth rotating portion 2922 is similar to that of the fourth rotating groove 2612, and each fourth rotating portion 2922 may extend into the corresponding fourth rotating groove 2612.
  • each elastic member 295 is located between the first cam 291 and the second cam 292, and each of which is respectively sleeved on the surface of the first pin 201, the second pin 202, the third pin 293, and the fourth pin 294.
  • One end of each elastic member 295 is fixed to the side of the first cam 291 away from the first spindle assembly 210, and the other end is fixed to the side of the second cam 292 away from the second spindle assembly 220.
  • the type of the elastic member 295 is not limited, and for example, the elastic member 295 can be a spring.
  • the first connecting rod 231 when the first rotating gear 271 rotates relative to the first main shaft assembly 210 under external force, the first connecting rod 231 can be driven to rotate relative to the first cam 291 toward the end face of the first cam 291. At this time, under the action of the first rotating groove 2312 and the first rotating portion 2911, the first connecting rod 231 generates a force on the first cam 291 that causes the first cam 291 to move away from the first connecting rod 231, thereby driving the first cam 291 to move away from the first main shaft assembly 210 along the axial direction of the first pin shaft 201.
  • the elastic member 295 sleeved on the first pin shaft 201 can be compressed, so that the elastic member 295 is deformed to generate an elastic restoring force.
  • the elastic member 295 transmits the elastic restoring force to the first cam 291.
  • the elastic restoring force of the elastic member 295 is converted into a force driving the first connecting rod 231 to rotate.
  • the first connecting rod 231 rotates around the axis of the first pin shaft 201 and drives the first push rod mechanism 230 to rotate.
  • a suspension function structure and a damping structure are respectively provided at opposite ends of the first connecting rod 231, so that both the free suspension of the folding mechanism 200 and the synchronous folding function of the folding mechanism 200 are realized.
  • the modules on both sides are independent of each other, which not only improves the life of the damping assembly 290, but also does not affect the structural performance of the other side when the structure on one side is worn or fails, thereby improving the reliability and durability of the electronic device.
  • the second spindle assembly 220 is provided with a retaining ring 203 on the side away from the first spindle assembly 210, and the retaining ring 203 is connected to the first spindle assembly 210.
  • the main shaft assembly 210 and the second main shaft assembly 220 are relatively fixed.
  • the snap ring 203 can position the first pin shaft 201 and the second pin shaft 202, so that the overall structure of the folding mechanism 200 is stable, thereby improving the reliability of the electronic device.
  • the electronic device in the present application can not only realize the hovering function of the folding product, but also has good durability and is not easy to wear.

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Abstract

本申请涉及终端技术领域，公开了一种折叠机构及电子设备。折叠机构包括第一主轴组件、第一推杆机构和第二推杆机构，第一推杆机构和第二推杆机构分别连接于第一主轴组件相对的两端。第一推杆机构包括第一连杆，第一连杆的一端转动连接于第一主轴组件。第一主轴组件设有多个周向分布的第一凹陷部，第一连杆设有与第一凹陷部一一对应的第一凸起部，各第一凸起部位于对应的第一凹陷部内。第二推杆机构包括第二连杆，第二连杆的一端转动连接于第一主轴组件。第一主轴组件设有多个周向分布的第二凹陷部，第二连杆设有与第二凹陷部一一对应的第二凸起部，各第二凸起部位于对应的第二凹陷部内。本申请公开的折叠机构，可实现悬停功能。

Description

折叠机构及电子设备
相关申请的交叉引用
本申请要求在2023年01月31日提交中国专利局、申请号为202310121288.7、申请名称为“折叠机构及电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及终端技术领域，特别涉及一种折叠机构及电子设备。
背景技术
随着柔性折叠屏技术日趋成熟，折叠终端产品因其屏幕可在不同使用场景下灵活变化大小而受到广泛关注。现有的折叠机构通过旋转的动凸轮与定凸轮相互接触，产生扭力，凸轮转动爬坡时提供转动阻力，凸轮转动下坡时提供转动动力，使整机具备自展闭功能，而悬停功能仅靠凹凸轮顶面配合区间产生阻尼力，不足以克服屏幕反弹力，无法实现自由悬停。
发明内容
本申请提供一种折叠机构及电子设备，可实现屏幕的自由悬停。
第一方面，本申请提供一种折叠机构，包括第一主轴组件、第一推杆机构和第二推杆机构，第一推杆机构和第二推杆机构位于第一主轴组件的同一侧，且第一推杆机构和第二推杆机构分别连接于第一主轴组件相对的两端。第一推杆机构包括第一连杆，第一连杆的一端转动连接于第一主轴组件。第一主轴组件朝向第一连杆的一端设有多个周向分布的第一凹陷部，第一凹陷部朝向第一连杆的表面为斜面，第一连杆朝向第一主轴组件的一侧设有与第一凹陷部一一对应的第一凸起部，各第一凸起部位于对应的第一凹陷部内，第一凸起部朝向第一凹陷部的表面与第一凹陷部朝向第一凸起部的表面贴合，且各第一凸起部可相对第一凹陷部沿对应的第一凹陷部的延伸方向移动。第二推杆机构包括第二连杆，第二连杆的一端转动连接于第一主轴组件。第一主轴组件朝向第二连杆的一端设有多个周向分布的第二凹陷部，第二凹陷部朝向第二连杆的表面为斜面，第二连杆朝向第一主轴组件的一侧设有与第二凹陷部一一对应的第二凸起部，各第二凸起部位于对应的第二凹陷部内，第二凸起部朝向第二凹陷部的表面与第二凹陷部朝向第二凸起部的表面贴合，且各第二凸起部可相对第二凹陷部沿对应的第二凹陷部的延伸方向移动。
本申请提供的折叠机构，第一连杆和第二连杆分别与第一主轴组件转动连接，第一主轴组件朝向第一连杆的一端设有多个第一凹陷部，第一连杆设有与多个第一凹陷部一一对应的第一凸起部，第一主轴组件朝向第二连杆的一端设有多个第二凹陷部，第二连杆设有与多个第二凹陷部一一对应的第二凸起部。第一凸起部的表面与第一凹陷部的表面贴合，由于第一凹陷部的表面为斜面，也即第一凹陷部的截面形状为三角形，能够提供较大的摩擦力，第一凸起部可沿第一凹陷部的延伸方向移动，当第一连杆相对第一主轴组件转动时，可保证第一凸起部始终与第一凹陷部贴合。同样地，第二凸起部也可沿第二凹陷部的延伸方向移动，当第二连杆相对第一主轴组件转动时，可保证第二凸起部始终与第二凹陷部贴合。由此，当折叠机构展开或折叠时，均可实现稳定悬停。
在一些可能的实施方案中，本申请中的折叠机构还包括第二主轴组件、第三推杆机构和第四推杆机构，第二主轴组件和第一主轴组件相对设置，第三推杆机构和第四推杆机构位于第二主轴组件朝向第一主轴组件的一侧，且第三推杆机构和第四推杆机构分别连接于第二主轴组件相对的两端。第三推杆机构包括第三连杆，第三连杆的一端转动连接于第二主轴组件。第二主轴组件朝向第三连杆的一端设有多个周向分布的第三凹陷部，第三凹陷部朝向第三连杆的表面为斜面，第三连杆朝向第二主轴组件的一侧设有与第三凹陷部一一对应的第三凸起部，各第三凸起部位于对应的第三凹陷部内，第三凸起部朝向第三凹陷部的表面与第三凹陷部朝向第三凸起部的表面贴合，且各第三凸起部可相对第三凹陷部沿对应的第三凹陷部的延伸方向移动。第四推杆机构包括第四连杆，第四连杆的一端转动连接于第二主轴组件。第二主轴组件朝向第四连杆的一端设有多个周向分布的第四凹陷部，第四凹陷部朝向第四连杆的表面为斜 面，第四连杆朝向第二主轴组件的一侧设有与第四凹陷部一一对应的第四凸起部，各第四凸起部位于对应的第四凹陷部内，第四凸起部朝向第四凹陷部的表面与第四凹陷部朝向第四凸起部的表面贴合，且各第四凸起部可相对第四凹陷部沿对应的第四凹陷部的延伸方向移动。本实施方案中的通过设置第三折叠机构和第四折叠机构，第三折叠机构和第四折叠机构与第一折叠机构和第二折叠机构对称设置，也即折叠机构包括两组折叠机构，可在实现折叠机构结构紧凑的同时提供更好的折叠性能，并且提供更大的摩擦力，从而更好地实现悬停功能。
在一些可能的实施方案中，本申请中的折叠机构还设置有第一销轴，第一销轴依次穿过第一主轴组件、第一连杆、第三连杆以及第二主轴组件。第一销轴与第一主轴组件固定，且与第二主轴组件固定，第一连杆可相对第一销轴绕第一销轴的轴向转动，第三连杆可相对第一销轴绕第一销轴的轴向转动。通过设置第一销轴，将两侧的折叠机构进行连接，从而保证折叠机构的稳定性。
在一些可能的实施方案中，本申请中的折叠机构还设置有第二销轴，第二销轴依次穿过第一主轴组件、第二连杆、第四连杆以及第二主轴组件。第二销轴与第一主轴组件固定，且与第二主轴组件固定，第二连杆可相对第二销轴绕第二销轴的轴向转动，第四连杆可相对第二销轴绕第二销轴的轴向转动。通过设置第二销轴，将两侧的折叠机构进行连接，从而保证折叠机构的稳定性。
在一些可能的实施方案中，本申请中的折叠机构还设置有第一同步机构，第一同步机构包括第一转动齿轮、第二转动齿轮以及位于第一转动齿轮和第二转动齿轮之间、且与第一转动齿轮和第二转动齿轮啮合的第一同步齿轮组件。第一转动齿轮固定连接于第一连杆，第二转动齿轮固定连接于第二连杆，且第一转动齿轮可相对第一主轴组件转动，第一同步齿轮组件与第一转动齿轮同步转动，以实现第一转动齿轮和第二转动齿轮的同步反向运动。本实施方案中通过设置第一同步机构，可实现第一连杆和第二连杆的同步反向转动，从而更好地实现折叠机构的折叠功能。
在一些可能的实施方案中，第一转动齿轮固定于第一连杆朝向第二连杆的一侧，第二转动齿轮固定于第二连杆朝向第一连杆的一侧，第一同步齿轮组件位于第一连杆和第二连杆之间。通过将第一同步齿轮组件设置在第一连杆和第二连杆之间，可提高折叠机构整体结构的紧凑型，有利于实现电子设备的轻薄化设计。
在一些可能的实施方案中，本申请中的折叠机构还设置有第二同步机构，第二同步机构包括第三转动齿轮、第四转动齿轮以及位于第三转动齿轮和第四转动齿轮之间、且与第三转动齿轮和第四转动齿轮啮合的第二同步齿轮。第三转动齿轮固定连接于第三连杆，第四转动齿轮固定连接于第四连杆，且第三转动齿轮可相对第一主轴组件转动，第二同步齿轮组件与第二转动齿轮同步转动，以实现第三转动齿轮和第四转动齿轮的同步反向运动。本实施方案中通过设置第二同步机构，可实现第三连杆和第四连杆的同步反向转动，从而更好地实现折叠机构的折叠功能。
在一些可能的实施方案中，第三转动齿轮固定于第三连杆朝向第四连杆的一侧，第四转动齿轮固定于第四连杆朝向第三连杆的一侧，第二同步齿轮组件位于第三连杆与第四连杆之间。通过将第二同步齿轮组件设置在第三连杆和第四连杆之间，可提高折叠机构整体结构的紧凑型，有利于实现电子设备的轻薄化设计。
在一些可能的实施方案中，本申请中的折叠机构还设有卡环，卡环与第一主轴组件以及第二主轴组件之间相对固定。卡环可对第一销轴和第二销轴起到定位的作用，从而使得折叠机构的整体结构稳定，进而提高电子设备的可靠性。
第二方面，本申请提供一种电子设备，包括第一壳体、第二壳体、柔性屏和如上述第一方面中任一可能的实施方案中的折叠机构，折叠机构连接所述第一壳体和所述第二壳体，以使所述第一壳体和所述第二壳体相对折叠和展开。柔性屏可铺设于第一壳体、第二壳体以及折叠机构上，且柔性屏与第一壳体固定和第二壳体固定连接。
本申请中的电子设备，通过设置了具有悬停功能的折叠机构，能够实现电子设备的悬停功能，从而提升了电子设备的实用性。
附图说明
图1a为本申请一种实施例提供的电子设备的爆炸图；
图1b为本申请一种实施例提供的电子设备的背部视图；
图2为本申请一种实施例提供的电子设备处于展平状态时的结构示意图；
图3a和图3b为本申请一种实施例提供的电子设备处于中间状态时的结构示意图；
图4为本申请一种实施例提供的电子设备处于闭合状态时的结构示意图；
图5为本申请实施例中折叠机构的一种爆炸结构示意图；
图6为本申请实施例中折叠机构的一种结构示意图；
图7为本申请实施例中折叠机构的部分结构爆炸示意图；
图8为图6中折叠机构的一种爆炸示意图；
图9为图6中第一主轴组件的一种结构示意图；
图10为图6中第一推杆机构的一种结构示意图；
图11为第一凹陷部的截面展开结构示意图；
图12为第一转动槽的截面展开结构示意图。
附图标记：
1-电子设备；10-第一壳体；11-第一表面；12-第二表面；20-第二壳体；21-第三表面；22-第四表面；
30-柔性屏；100-折叠机构；101-第一折叠组件；1011-第一支撑板；1012-第一壳体固定架；102-第二折叠组件；1021-第二支撑板；1022-第二壳体固定架；110-主轴组件；120-第一推杆机构；130-第二推杆机构；200-折叠机构；201-第一销轴；202-第二销轴；203-卡环；210-第一主轴组件；211-第一凹陷部；212-第二凹陷部；220-第二主轴组件；221-第三凹陷部；222-第四凹陷部；230-第一推杆机构；231-第一连杆；2311-第一凸起部；2312-第一转动槽；240-第二推杆机构；241-第二连杆；2411-第二凸起部；2412-第二转动槽；250-第三推杆机构；251-第三连杆；2511-第三凸起部；2512-第三转动槽；260-第四推杆机构；261-第四连杆；2611-第四凸起部；2612-第四转动槽；270-第一同步机构；271-第一转动齿轮；272-第二转动齿轮；273-第一同步齿轮；274-第二同步齿轮；280-第二同步机构；281-第三转动齿轮；282-第四转动齿轮；283-第三同步齿轮；284-第四同步齿轮；290-阻尼组件；291-第一凸轮；2911-第一转动部；2912-第二转动部；292-第二凸轮；2921-第三转动部；2922-第四转动部；293-第三销轴；294-第四销轴；295-弹性件。
具体实施方式
以下实施例中所使用的术语只是为了描述特定实施例的目的，而并非旨在作为对本申请的限制。如在本申请的说明书和所附权利要求书中所使用的那样，单数表达形式“一个”、“一种”、“所述”、“上述”、“该”和“这一”旨在也包括例如“一个或多个”这种表达形式，除非其上下文中明确地有相反指示。
在本说明书中描述的参考“一个实施例”或“一些实施例”等意味着在本申请的一个或多个实施例中包括结合该实施例描述的特定特征、结构或特点。由此，在本说明书中的不同之处出现的语句“在一个实施例中”、“在一些实施例中”、“在其他一些实施例中”、“在另外一些实施例中”等不是必然都参考相同的实施例，而是意味着“一个或多个但不是所有的实施例”，除非是以其他方式另外特别强调。术语“包括”、“包含”、“具有”及它们的变形都意味着“包括但不限于”，除非是以其他方式另外特别强调。
折叠终端产品在使用时，需要反复折叠打开，在反复折叠打开的过程中，屏幕出现微小变形。当产品处于展平状态时，由于对应于转轴区域的屏幕部分悬空，屏幕表面受力不均，从而出现屏幕不平整、屏幕表面有折痕等问题。尤其是产品在长期使用的情况下，弯折次数增多，屏幕的拉扯变形量积累，从而导致屏幕折痕问题更加显著。
基于此，本申请实施例可提供一种折叠机构及电子设备，当电子设备屏幕在展平时，可减弱屏幕的折痕。以下将结合具体的实施例对上述折叠机构及电子设备进行详细说明。
本申请中的电子设备可以是折叠手机、折叠平板、折叠电脑，等等，本申请实施例对此不作限定。
参考图1a和图2，图1a为本申请实施例中电子设备折叠的一种结构示意图，图2为图1a中电子设备展平的一种结构示意图。电子设备1可包括第一壳体10、第二壳体20、柔性屏30和折叠机构100。其中，第一壳体10和第二壳体20设置于折叠机构100的两侧并分别与折叠机构100连接，折叠机构100能够运动，以使第一壳体10与第二壳体20相对折叠或相对展开。其中，第一壳体10和第二壳体20具体可以为电子设备的中框，也可以是电子设备的中框和外壳的整体统称。
参照图1a和图1b，图1b为本申请一实施例提供的电子设备的背部结构示意图。在本申请实施例中，第一壳体10具有第一表面11以及与第一表面11相背设置的第二表面12，第二壳体20具有第三表面21以及与第三表面21相背设置的第四表面22。其中，柔性屏30铺设于第一壳体10的第一表面 11、第二壳体20的第三表面21以及折叠机构100，第一壳体10和第二壳体20可共同用于支撑柔性屏30。
折叠机构100可包括主轴组件110、第一折叠组件101和第二折叠组件102，第一折叠组件101和第二折叠组件102分别连接于主轴组件110相对的两侧，并且，第一折叠组件101和第二折叠组件102可分别相对主轴组件110转动，以实现折叠机构100的折叠和展开功能。具体地，第一折叠组件101设置于第一壳体10的一侧，第二折叠组件102设置于第二壳体20的一侧。
参照图2，图2为第一壳体10与第二壳体20相对展开至展平状态的电子设备的结构示意图。在本申请实施例中，第一壳体10与第二壳体20处于展平状态时，一并参照图1a和图2，第一壳体10的第一表面11和第二壳体20的第三表面21处于同一平面，此时第一表面11和第三表面21之间的夹角可以大致呈180°(也允许存在一定角度的公差，第一表面11和第三表面21之间的夹角例如为165°、177°或者185°)。
一并参照图3a和图3b，图3a展示的是第一壳体10与第二壳体20相对转动(展开或折叠)至中间状态的电子设备的结构示意图。图3b展示的是第一壳体10与第二壳体20相对转动(展开或折叠)至中间状态的电子设备的侧视图。在图3a中省略了柔性屏30，以便于展示中间状态时两个壳体的形态。此时电子设备可以处于展平状态与闭合状态之间的任意状态，示例性的，第一壳体10的第一表面11与第二壳体20的第三表面21之间的夹角例如可为130°～150°。
又参照图4，图4为第一壳体10与第二壳体20相对折叠至闭合状态的电子设备的结构示意图。可一并参照图1a和图4，第一壳体10与第二壳体20处于闭合状态时，第一壳体10的第一表面11与第二壳体20的第三表面21彼此面对或彼此背离(具体与折叠方式有关)，此时第一壳体10的第一表面11与第二壳体20的第三表面21之间可存在微小的夹角或相互平行以使两壳体能完全合拢(也允许存在一定角度的公差)。
进一步参照图1a和图2，柔性屏30连续地覆盖于电子设备1的第一壳体10的第一表面11、折叠机构100以及第二壳体20的第三表面21上。其中，柔性屏30可以分为连续的区域A、B、C、D和E，其中，区域B、C、D包括被折叠时的弯折部分。区域A与第一壳体10的第一表面11对应，其可固定连接于第一壳体10的第一表面11，区域E与第二壳体20的第三表面21对应，其可固定连接于第二壳体20的第三表面21。需要说明的是，图中示出的区域B、C、D三者的分界线仅为示例性的，可以根据具体的折叠机构100的设计调整区域B、C、D的分界线。
一并参考图1a和图5，图5为本申请实施例中折叠机构的一种爆炸结构示意图。第一折叠组件101可包括第一支撑板1011、第一壳体固定架1012以及第一推杆机构120，第一壳体固定架1012可与第一壳体10固定连接，第一支撑板1011与第一壳体固定架1012转动连接，第一推杆机构120与第一壳体固定架1012滑动连接。类似地，第二折叠组件可包括第二支撑板1021、第二壳体固定架1022以及第二推杆机构130，第二壳体固定架1022与第二壳体20固定连接，第二支撑板1021与第二壳体固定架1022转动连接，第二推杆机构130与第二壳体固定架1022滑动连接。第一支撑板1011背离第一壳体固定架1012的一侧以及第二支撑板1021背离第二壳体固定架1022的一侧可用于支撑柔性屏30。当第一壳体10由展平状态相对主轴组件110折叠时，可带动第一壳体固定架1012转动，第一支撑板1011相对于第一壳体固定架1012转动，以带动柔性屏30与第一壳体10同步转动，第一推杆机构120可相对第一壳体固定架1012沿第一壳体固定架1012与第一推杆机构120的排列方向移动。类似地，当第二壳体20由展平状态相对主轴组件110折叠时，第二支撑板1021可带动柔性屏30与第二壳体20同步转动，第二推杆机构130可相对第二壳体固定架1022沿第二壳体固定架1022与第二推杆机构130的排列方向移动。
由于第一支撑板1011可相对第一壳体10转动，第二支撑板1021可相对第二壳体20转动，当电子设备1处于折叠状态时，第一支撑板1011和第二支撑板1021可达到指定位置，以配合形成类似水滴状的结构。也即第一支撑板1011和第二支撑板1021之间在靠近主轴组件110的部位的距离大于二者远离主轴组件110的部位的距离，以使得第一支撑板1011和第二支撑板1021在靠近主轴组件110的部位容纳柔性屏30的区域B、C、D的容纳空间。
本实施例中的电子设备1在折叠的过程中，第一壳体的10的第一表面11和第二壳体20的第三表面21逐渐靠近，也就是说，本实施例中的电子设备1的折叠方式为内折。
需要说明的是，本申请图5中仅为折叠机构的一种示意，本申请实施例中的折叠机构还可以是其它 的结构形式，例如，折叠机构还可包括第三折叠组件和第四折叠组件，当其应用于电子设备时，只要能够实现电子设备的折叠和展开即可。
参考图6和图7，图6为本申请实施例中折叠机构的一种结构示意图，图7为本申请实施例中折叠机构的部分结构爆炸示意图。本实施例中的折叠机构200包括第一主轴组件210、第二主轴组件220、第一推杆机构230、第二推杆机构240、第三推杆机构250以及第四推杆机构260，第一主轴组件210和第二主轴组件220相对设置，第一推杆机构230和第二推杆机构240位于第一主轴组件210朝向第二主轴组件220的一侧，并且第一推杆机构230和第二推杆机构240分别位于第一主轴组件210相对的两侧。第三推杆机构250和第四推杆机构260位于第二主轴组件220朝向第一主轴组件210的一侧，并且第三推杆机构250和第四推杆机构260分别位于第二主轴组件220相对的两侧。第一推杆机构230和第二推杆机构240均转动连接于第一主轴组件210，并且，第一推杆机构230和第二推杆机构240之间设有第一同步机构270，以使第一推杆机构230和第二推杆机构240可同步转动。第三推杆机构250和第四推杆机构260均转动连接于第二主轴组件220，并且，第三推杆机构250和第四推杆机构260之间设有第二同步机构280，以使得第三推杆机构250和第四推杆机构260可同步转动。第一同步机构270和第二同步机构280支架还可设置阻尼组件290，该阻尼组件290可用于使得第一同步机构270和第二同步机构280同时工作，从而使得各推杆机构同时工作。
相较于只有第一推杆机构和第二推杆机构的折叠机构，本申请实施例中，如图7所示，当设置第三推杆机构250和第四推杆机构260时，第一壳体固定架1012和第二壳体固定架1022上设置相应的滑动结构即可。
一并参考图8、图9和图10和图11，图8为图6中折叠机构的一种爆炸示意图，图9为图6中第一主轴组件的一种结构示意图，图10为图6中第一推杆机构的一种结构示意图，图11为第一凹陷部的截面展开结构示意图。第一推杆机构230包括第一连杆231，第一连杆231转动连接于第一主轴组件210。第一主轴组件210朝向第一连杆231的一端设有多个周向分布的第一凹陷部211，第一凹陷部211朝向第一连杆231的表面为斜面，也就是说，沿第一凹陷部211的延伸方向，第一凹陷部211的一端至另一端的高度逐渐下降，这样，第一凹陷部211的截面呈三角形结构。第一连杆231朝向第一主轴组件210的一端设有与多个第一凹陷部211一一对应的第一凸起部2311，各第一凸起部2311位于对应的第一凹陷部211内。每一个第一凸起部2311朝向第一凹陷部211的表面为斜面，该斜面与第一凹陷部211的斜面形状正好相反，可以理解的，沿顺时针方向，第一凹陷部211的斜面高度由高到低，则第一凸起部2311的斜面高度由低到高，这样可使得第一凸起部2311的表面与第一凹陷部211的表面贴合。并且，第一凹陷部211的延伸方向的尺寸大于第一凸起部2311的延伸方向的尺寸，当第一连杆231相对第一主轴组件210转动时，第一凸起部2311还可相对于对应的第一凹陷部211沿第一凹陷部211的延伸方向转动，由于在此过程中，第一凸起部2311始终与第一凹陷部211的表面紧贴，且第一凹陷部211的端部还可对第一凸起部2311起到限位的作用，这样可对折叠机构200提供足够的悬停力，从而保证折叠机构200的长期稳定悬停能力。
类似地，第二推杆机构240包括第二连杆241，第二连杆241转动连接于第一主轴组件210。第一主轴组件210朝向第二连杆241的一端设有多个周向分布的第二凹陷部212，第二凹陷部212朝向第二连杆241的表面为斜面，也即，第二凹陷部212的截面呈三角形结构。第二连杆241朝向第一主轴组件210的一端设有与多个第二凹陷部212一一对应的第二凸起部2411，各第二凸起部2411位于对应的第二凹陷部212内。每一个第二凸起部2411朝向第二凹陷部212的表面为斜面，该斜面与第二凹陷部212的斜面形状正好相反，可以理解的，沿顺时针方向，第二凹陷部212的斜面高度由高到低，则第二凸起部2411的斜面高度由低到高，这样可使得第二凸起部2411的表面与第二凹陷部212的表面贴合。并且，第二凹陷部212的延伸方向的尺寸大于第二凸起部2411的延伸方向的尺寸，当第二连杆241相对第一主轴组件210转动时，第二凸起部2411还可相对于对应的第二凹陷部212沿第二凹陷部212的延伸方向转动，由于在此过程中，第二凸起部2411始终与第二凹陷部212的表面紧贴，且第二凹陷部212的端部还可对第二凸起部2411起到限位的作用，这样可对折叠机构200提供足够的悬停力，从而保证折叠机构200的长期稳定悬停能力。
第三推杆机构250与第一推杆机构230位于同一侧，第三推杆机构250包括第三连杆251，第三连杆251转动连接于第二主轴组件220。第二主轴组件220朝向第三连杆251的一端设有多个周向分布的第三凹陷部221，第三凹陷部221朝向第三连杆251的表面为斜面，也即，第三凹陷部221的截面呈三 角形结构。第三连杆251朝向第二主轴组件220的一端设有与多个第三凹陷部221一一对应的第三凸起部2511，各第三凸起部2511位于对应的第三凹陷部221内。每一个第三凸起部2511朝向第三凹陷部221的表面为斜面，该斜面与第三凹陷部221的斜面形状正好相反，可以理解的，沿顺时针方向，第三凹陷部221的斜面高度由高到低，则第三凸起部2511的斜面高度由低到高，这样可使得第三凸起部2511的表面与第三凹陷部221的表面贴合。并且，第三凹陷部221的延伸方向的尺寸大于第三凸起部2511的延伸方向的尺寸，当第三连杆251相对第二主轴组件220转动时，第三凸起部2511还可相对于对应的第三凹陷部221沿第三凹陷部221的延伸方向转动，由于在此过程中，第三凸起部2511始终与第三凹陷部221的表面紧贴，且第三凹陷部221的端部还可对第三凸起部2511起到限位的作用，这样可对折叠机构200提供足够的悬停力，从而保证折叠机构200的长期稳定悬停能力。
第四推杆机构260与第二推杆机构240位于同一侧，第四推杆机构260包括第四连杆261，第四连杆261转动连接于第二主轴组件220。第二主轴组件220朝向第四连杆261的一端设有多个周向分布的第四凹陷部222，第四凹陷部222朝向第四连杆261的表面为斜面，也即，第四凹陷部222的截面呈三角形结构。第四连杆261朝向第二主轴组件220的一端设有与多个第四凹陷部222一一对应的第四凸起部2611，各第四凸起部2611位于对应的第四凹陷部222内。每一个第四凸起部2611朝向第四凹陷部222的表面为斜面，该斜面与第四凹陷部222的斜面形状正好相反，可以理解的，沿顺时针方向，第四凹陷部222的斜面高度由高到低，则第四凸起部2611的斜面高度由低到高，这样可使得第四凸起部2611的表面与第四凹陷部222的表面贴合。并且，第四凹陷部222的延伸方向的尺寸大于第四凸起部2611的延伸方向的尺寸，当第四连杆261相对第二主轴组件220转动时，第四凸起部2611还可相对于对应的第四凹陷部222沿第四凹陷部222的延伸方向转动，由于在此过程中，第四凸起部2611始终与第四凹陷部222的表面紧贴，且第四凹陷部222的端部还可对第四凸起部2611起到限位的作用，这样可对折叠机构200提供足够的悬停力，从而保证折叠机构200的长期稳定悬停能力。
可以理解的，第一主轴组件210、第一推杆机构230和第二推杆机构240的整体结构与第二主轴组件220、第三推杆机构250和第四推杆机构260的整体之间为对称设置，并且，通过设置两组推杆机构，可提升折叠机构200的稳定性。并且，多个推杆机构还可为折叠机构200提供更大的悬停摩擦力，从而更好地实现稳定悬停。
继续参考图6和图8，折叠机构200还可设置第一销轴201和第二销轴202，第一销轴201和第二销轴202平行设置。第一销轴201依次穿设于第一主轴组件210、第一连杆231、第三连杆251以及第二主轴组件220，第二销轴202依次穿设于第一主轴组件210、第二连杆241、第四连杆261以及第二主轴组件220，通过利用第一销轴201和第二销轴202可将折叠机构200的各结构之间进行组装，从而保证折叠机构200的结构稳定以及结构紧凑。
一并参考图6、图8和图12，图12为第一转动槽的截面展开结构示意图。第一同步机构270包括第一转动齿轮271、第二转动齿轮272以及第一同步齿轮组件，第一同步齿轮组件可包括第一同步齿轮273和第二同步齿轮274。第一转动齿轮271固定连接于第一连杆231朝向第二连杆241的一侧，第二转动齿轮272固定连接于第二连杆241朝向第一连杆231的一侧，第一同步齿轮组件位于第一转动齿轮271和第二转动齿轮272之间。第一同步齿轮273与第一转动齿轮271啮合，且与第二同步齿轮274啮合，第二同步齿轮274与第二转动齿轮272啮合，且与第一同步齿轮273啮合。第一转动齿轮271可用于接收来自外部的作用力，并通过作用力转动，从而带动第一推杆机构230转动。同样地，第二转动齿轮272也可接收来自外部的作用力，并通过作用力转动，从而带动第二推杆机构240转动。示例性地，当第一转动齿轮271顺时针转动时，第一同步齿轮273逆时针转动，而第二同步齿轮274顺时针转动，第二转动齿轮272可逆时针转动。这样，当折叠电子设备时，可使得第一转动齿轮271和第二转动齿轮272同步反向转动，从而带动第一推杆机构230和第二推杆机构240同步反向转动，更方便折叠屏幕。
类似地，第二同步机构280包括第三转动齿轮281、第四转动齿轮282以及第二同步齿轮组件，第二同步齿轮组件可包括第三同步齿轮283和第四同步齿轮284。第三转动齿轮281固定连接于第三连杆251朝向第四连杆261的一侧，第四转动齿轮282固定连接于第四连杆261朝向第三连杆251的一侧，第二同步齿轮组件位于第三转动齿轮281和第四转动齿轮282之间。第三同步齿轮283与第三转动齿轮281啮合，且与第四同步齿轮284啮合，第四同步齿轮284与第四转动齿轮282啮合，且与第三同步齿轮283啮合。第三转动齿轮281可用于接收来自外部的作用力，并通过作用力转动，从而带动第三推杆机构250转动。同样地，第四转动齿轮282也可接收来自外部的作用力，并通过作用力转动，从而带动 第四推杆机构260转动。示例性地，当第三转动齿轮281顺时针转动时，第三同步齿轮283逆时针转动，而第四同步齿轮284顺时针转动，第四转动齿轮282可逆时针转动。这样，当折叠电子设备时，可使得第三转动齿轮281和第四转动齿轮282同步反向转动，从而带动第三推杆机构250和第三推杆机构250同步反向转动，更方便折叠屏幕。
继续参考图6和图7，阻尼组件290包括第三销轴293、第四销轴294、第一凸轮291、第二凸轮292以及多个弹性件295。第三销轴293和第四销轴294位于第一销轴201与第二销轴202之间，并且第三销轴293和第四销轴294以及第一销轴201之间平行设置。第三销轴293的一端固定于第一主轴组件210，另一端固定于第二主轴组件220，第一同步齿轮273套设于第一销轴201靠近第一主轴组件210的一端，第三同步齿轮283套设于第一销轴201靠近第二主轴组件220的一端，且第一同步齿轮273和第三同步齿轮283均可绕第一销轴201的轴线转动。第四销轴294的一端固定于第一主轴组件210，另一端固定于第二主轴组件220，第二同步齿轮274套设于第四销轴294靠近第一主轴的一端，第四同步齿轮284套设于第四销轴294靠近第二主轴的一端，且第二同步齿轮274和第四同步齿轮284均可绕第二销轴202的轴线转动。
第一凸轮291和第二凸轮292相对设置，第一凸轮291位于第一连杆231朝向第三连杆251的一侧，第二凸轮292位于第三连杆251朝向第一连杆231的一侧。第一凸轮291穿设于四个销轴，且第二凸轮292穿设于四个销轴。第一连杆231朝向第一凸轮291的一侧设有多个周向设置的第一转动槽2312，第一转动槽2312可呈“V”字型或者梯形结构，第一凸轮291朝向第一连杆231的一侧设有与多个第一转动槽2312一一对应的第一转动部2911，第一转动部2911的形状与第一转动槽2312的形状类似，且各第一转动部2911可伸入至对应的第一转动槽2312内。第二连杆241朝向第一凸轮291的一侧设有多个周向设置的第二转动槽2412，第二转动槽2412可呈“V”字型或者梯形结构，第一凸轮291朝向第二连杆241的一侧设有与多个第二转动槽2412一一对应的第二转动部2912，第二转动部2912的形状与第二转动槽2412的形状类似，且各第二转动部2912可伸入至对应的第二转动槽2412内。第三连杆251朝向第二凸轮292的一侧设有多个周向设置的第三转动槽2512，第三转动槽2512可呈“V”字型或者梯形结构，第二凸轮292朝向第三连杆251的一侧设有与多个第三转动槽2512一一对应的第三转动部2921，第三转动部2921的形状与第三转动槽2512的形状类似，且各第三转动部2921可伸入至对应的第三转动槽2512内。第四连杆261朝向第二凸轮292的一侧设有多个周向设置的第四转动槽2612，第四转动槽2612可呈“V”字型或者梯形结构，第二凸轮292朝向第四连杆261的一侧设有与多个第四转动槽2612一一对应的第四转动部2922，第四转动部2922的形状与第四转动槽2612的形状类似，且各第四转动部2922可伸入至对应的第四转动槽2612内。
弹性件295的数量为四个，各弹性件295均位于第一凸轮291与第二凸轮292之间，且各弹性件295分别套设于第一销轴201、第二销轴202、第三销轴293以及第四销轴294的表面。每一个弹性件295的一端固定于第一凸轮291背离第一主轴组件210的一侧，另一端固定于第二凸轮292上背离第二主轴组件220的一侧。弹性件295的类型不限，示例性地，弹性件295可以是弹簧。
以第一连杆231为例，当第一转动齿轮271在外部作用力下相对第一主轴组件210转动时，可带动第一连杆231朝向第一凸轮291的端面相对第一凸轮291转动，这时，在第一转动槽2312和第一转动部2911的作用下，第一连杆231对第一凸轮291产生使得第一凸轮291远离第一连杆231的作用力，从而驱动第一凸轮291沿第一销轴201的轴线方向远离第一主轴组件210移动。当第一凸轮291远离第一主轴组件210移动时，可压缩套设于第一销轴201上的弹性件295，从而使得弹性件295发生形变而产生弹性复位力，弹性件295将弹性复位力传递给第一凸轮291，在第一转动槽2312和第一转动部2911的配合下，将弹性件295的弹性复位力转化为驱动第一连杆231转动的作用力，这时，第一连杆231绕第一销轴201的轴线转动，并带动第一推杆机构230转动。
第二转动齿轮272、第三转动齿轮281以及第四转动齿轮282的工作原理与上述第一转动齿轮271的工作原理相同，这里不再叙述。
在本实施例中，以第一连杆231为例，在第一连杆231相对的两端分别设置了悬停功能结构和阻尼结构，既实现了折叠机构200的自由悬停，还实现了折叠机构200的同步折叠功能。并且，两侧的模块之间相互独立，不仅提高了阻尼组件290的寿命，当某一侧的结构磨损或失效时，不会影响另一侧的结构性能，这样可提高电子设备的可靠性和耐用性。
继续参考图8，第二主轴组件220远离第一主轴组件210的一侧设有卡环203，该卡环203与第一 主轴组件210以及第二主轴组件220之间相对固定。卡环203可对第一销轴201和第二销轴202起到定位的作用，从而使得折叠机构200的整体结构稳定，进而提高电子设备的可靠性。
相较于现有的折叠电子设备，本申请中的电子设备不仅能够实现折叠机产品的悬停功能，且耐用性好，不易磨损。
以上，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (10)

  1. 一种折叠机构，其特征在于，包括第一主轴组件、第一推杆机构和第二推杆机构，所述第一推杆机构和所述第二推杆机构位于所述第一主轴组件的同一侧，且所述第一推杆机构和所述第二推杆机构分别连接于所述第一主轴组件相对的两端；
    所述第一推杆机构包括第一连杆，所述第一连杆的一端转动连接于所述第一主轴组件；
    所述第一主轴组件朝向所述第一连杆的一端设有多个周向分布的第一凹陷部，所述第一凹陷部朝向所述第一连杆的表面为斜面，所述第一连杆朝向所述第一主轴组件的一侧设有与所述第一凹陷部一一对应的第一凸起部，各所述第一凸起部位于对应的所述第一凹陷部内，所述第一凸起部朝向所述第一凹陷部的表面与所述第一凹陷部朝向所述第一凸起部的表面贴合，且各所述第一凸起部可相对所述第一凹陷部沿对应的所述第一凹陷部的延伸方向移动；
    所述第二推杆机构包括第二连杆，所述第二连杆的一端转动连接于所述第一主轴组件；
    所述第一主轴组件朝向所述第二连杆的一端设有多个周向分布的第二凹陷部，所述第二凹陷部朝向所述第二连杆的表面为斜面，所述第二连杆朝向所述第一主轴组件的一侧设有与所述第二凹陷部一一对应的第二凸起部，各所述第二凸起部位于对应的所述第二凹陷部内，所述第二凸起部朝向所述第二凹陷部的表面与所述第二凹陷部朝向所述第二凸起部的表面贴合，且各所述第二凸起部可相对所述第二凹陷部沿对应的所述第二凹陷部的延伸方向移动。
  2. 根据权利要求1所述的折叠机构，其特征在于，还包括第二主轴组件、第三推杆机构和第四推杆机构，所述第二主轴组件和所述第一主轴组件相对设置，所述第三推杆机构和所述第四推杆机构位于所述第二主轴组件朝向所述第一主轴组件的一侧，且所述第三推杆机构和所述第四推杆机构分别连接于所述第二主轴组件相对的两端；
    所述第三推杆机构包括第三连杆，所述第三连杆的一端转动连接于所述第二主轴组件；
    所述第二主轴组件朝向所述第三连杆的一端设有多个周向分布的第三凹陷部，所述第三凹陷部朝向所述第三连杆的表面为斜面，所述第三连杆朝向所述第二主轴组件的一侧设有与所述第三凹陷部一一对应的第三凸起部，各所述第三凸起部位于对应的所述第三凹陷部内，所述第三凸起部朝向所述第三凹陷部的表面与所述第三凹陷部朝向所述第三凸起部的表面贴合，且各所述第三凸起部可相对所述第三凹陷部沿对应的所述第三凹陷部的延伸方向移动；
    所述第四推杆机构包括第四连杆，所述第四连杆的一端转动连接于所述第二主轴组件；
    所述第二主轴组件朝向所述第四连杆的一端设有多个周向分布的第四凹陷部，所述第四凹陷部朝向所述第四连杆的表面为斜面，所述第四连杆朝向所述第二主轴组件的一侧设有与所述第四凹陷部一一对应的第四凸起部，各所述第四凸起部位于对应的所述第四凹陷部内，所述第四凸起部朝向所述第四凹陷部的表面与所述第四凹陷部朝向所述第四凸起部的表面贴合，且各所述第四凸起部可相对所述第四凹陷部沿对应的所述第四凹陷部的延伸方向移动。
  3. 根据权利要求2所述的折叠机构，其特征在于，还包括第一销轴，所述第一销轴依次穿过所述第一主轴组件、所述第一连杆、所述第三连杆以及所述第二主轴组件，所述第一销轴与所述第一主轴组件固定，且与所述第二主轴组件固定，所述第一连杆可相对所述第一销轴绕所述第一销轴的轴向转动，所述第三连杆可相对所述第一销轴绕所述第一销轴的轴向转动。
  4. 根据权利要求2或3所述的折叠机构，其特征在于，还包括第二销轴，所述第二销轴依次穿过所述第一主轴组件、所述第二连杆、所述第四连杆以及所述第二主轴组件，所述第二销轴与所述第一主轴组件固定，且与所述第二主轴组件固定，所述第二连杆可相对所述第二销轴绕所述第二销轴的轴向转动，所述第四连杆可相对所述第二销轴绕所述第二销轴的轴向转动。
  5. 根据权利要求1～4任一项所述的折叠机构，其特征在于，还包括第一同步机构，所述第一同步机构包括第一转动齿轮、第二转动齿轮以及位于所述第一转动齿轮和所述第二转动齿轮之间、且与所述第一转动齿轮和所述第二转动齿轮啮合的第一同步齿轮组件；
    所述第一转动齿轮固定连接于所述第一连杆，所述第二转动齿轮固定连接于所述第二连杆，且所述第一转动齿轮可相对所述第一主轴组件转动，所述第一同步齿轮组件与所述第一转动齿轮同步转动，以实现所述第一转动齿轮和所述第二转动齿轮的同步反向运动。
  6. 根据权利要求5所述的折叠机构，其特征在于，所述第一转动齿轮固定于所述第一连杆朝向所述 第二连杆的一侧，所述第二转动齿轮固定于所述第二连杆朝向所述第一连杆的一侧，所述第一同步齿轮组件位于所述第一连杆和所述第二连杆之间。
  7. 根据权利要求2～6任一项所述的折叠机构，其特征在于，还包括第二同步机构，所述第二同步机构包括第三转动齿轮、第四转动齿轮以及位于所述第三转动齿轮和所述第四转动齿轮之间、且与所述第三转动齿轮和所述第四转动齿轮啮合的第二同步齿轮；
    所述第三转动齿轮固定连接于所述第三连杆，所述第四转动齿轮固定连接于所述第四连杆，且所述第三转动齿轮可相对所述第一主轴组件转动，所述第二同步齿轮组件与所述第二转动齿轮同步转动，以实现所述第三转动齿轮和所述第四转动齿轮的同步反向运动。
  8. 根据权利要求7所述的折叠机构，其特征在于，所述第三转动齿轮固定于所述第三连杆朝向所述第四连杆的一侧，所述第四转动齿轮固定于所述第四连杆朝向所述第三连杆的一侧，所述第二同步齿轮组件位于所述第三连杆与所述第四连杆之间。
  9. 根据权利要求1～8任一项所述的折叠机构，其特征在于，还包括卡环，所述卡环位于所述第一主轴组件的一侧，且所述卡环与所述第一主轴组件之间相对固定。
  10. 一种电子设备，其特征在于，包括第一壳体、第二壳体、柔性屏以及如权利要求1～9中任一项所述的折叠机构，所述折叠结构连接所述第一壳体和所述第二壳体，以使所述第一壳体和所述第二壳体相对折叠和展开；
    所述柔性屏铺设于所述第一壳体、所述第二壳体和所述折叠机构上，且所述柔性屏与所述第一壳体和所述第二壳体固定连接。
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