WO2024001127A1 - 转轴组件、折叠壳体及电子设备 - Google Patents

转轴组件、折叠壳体及电子设备 Download PDF

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Publication number
WO2024001127A1
WO2024001127A1 PCT/CN2022/142747 CN2022142747W WO2024001127A1 WO 2024001127 A1 WO2024001127 A1 WO 2024001127A1 CN 2022142747 W CN2022142747 W CN 2022142747W WO 2024001127 A1 WO2024001127 A1 WO 2024001127A1
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WO
WIPO (PCT)
Prior art keywords
base
rotating
shaft assembly
spiral groove
rotating shaft
Prior art date
Application number
PCT/CN2022/142747
Other languages
English (en)
French (fr)
Inventor
廖彬材
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 WO2024001127A1 publication Critical patent/WO2024001127A1/zh

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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
    • F16C11/045—Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681—Details related solely to hinges
    • 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
    • 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
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H05K5/0226—Hinges

Definitions

  • the present application relates to the field of electronic equipment, and in particular, to a rotating shaft assembly that supports a flexible screen, a folding housing provided with the rotating shaft assembly, and an electronic device provided with the folding housing.
  • bendable and flexible displays With the development of display equipment, bendable and flexible displays have appeared. Folding screen devices equipped with bendable and flexible displays are becoming more and more popular due to their unique shapes and diverse functions. Current folding solutions for bendable flexible displays include inner folding and outer folding.
  • the bendable flexible displays of foldable screen devices in related technologies generally use hinge mechanisms for support.
  • existing hinge mechanisms generally use gear-to-gear meshing to achieve linkage, which has a complex structure, large volume, and takes up a large amount of internal space in the folding screen device.
  • the present application provides a rotating shaft assembly, a folding case provided with the rotating shaft assembly, and an electronic device provided with the folding case.
  • This application provides a rotating shaft assembly, which includes a base, a linkage member, a first rotating member and a second rotating member.
  • the linkage member is connected to the base and can slide relative to the base along a first direction.
  • the linkage part includes a first connecting part and a second connecting part, the first rotating part is rotationally connected to the base, and the first rotating part and the first connecting part are connected by a first screw
  • the groove is rotatably connected to the first transmission part, the first spiral groove is provided on one of the first rotating part and the first connecting part, the first transmission part is provided on the first The other one of the rotating member and the first connecting part; the second rotating member is rotationally connected to the base, and a second spiral groove is passed between the second rotating member and the second connecting shaft.
  • Rotatingly connected with the second transmission part the second spiral groove is provided on one of the second rotating member and the second connecting part, the second transmission part is provided on the second rotating part
  • the first spiral groove and the second spiral groove have opposite directions of rotation.
  • This application also provides a folding shell, which includes a rotating shaft assembly and two frames.
  • the rotating shaft assembly is located between the two frames.
  • the end of the first rotating member of the rotating shaft assembly away from the base is connected to In one of the frames, one end of the second rotating member of the rotating shaft assembly away from the base is connected to the other frame.
  • This application also provides an electronic device, which includes a flexible screen, two frames and a rotating shaft assembly.
  • the rotating shaft assembly is located between the two frames.
  • the first rotating member of the rotating shaft assembly is at one end away from the base.
  • the end of the second rotating member of the rotating shaft assembly away from the base is connected to the other frame, and the flexible screen is connected to the two frames and the rotating shaft assembly.
  • Figure 1 is a schematic three-dimensional structural diagram of an electronic device in the first embodiment of the present application
  • Figure 2 is an exploded schematic diagram of the three-dimensional structure of the foldable housing and flexible screen of the electronic device in Figure 1;
  • Figure 3 is an exploded schematic diagram of the three-dimensional structure of the folding shell in Figure 2;
  • Figure 4 is an enlarged view of the rotating shaft assembly in Figure 3;
  • Figure 5 is a schematic three-dimensional structural diagram of the rotating shaft assembly in Figure 4 from another perspective;
  • Figure 6 is an exploded schematic diagram of the three-dimensional structure of the rotating shaft assembly in Figure 4.
  • Figure 7 is a schematic three-dimensional structural diagram of the rotating shaft assembly in Figure 6 from another perspective;
  • Figure 8 is a further three-dimensional structural exploded view of the rotating shaft assembly in Figure 6;
  • Figure 9 is a schematic three-dimensional structural diagram of the rotating shaft assembly in Figure 7 from another perspective
  • Figure 10 is an exploded schematic diagram of the three-dimensional structure of the base and linkage components in Figure 8.
  • Figure 11 is an exploded schematic diagram of the three-dimensional structure of the base and linkage components in Figure 9;
  • Figure 12 is a further three-dimensional structural exploded view of the base seat and linkage assembly in Figure 10;
  • Figure 13 is a further three-dimensional structural exploded view of the base and linkage components in Figure 11;
  • Figure 14 is a partial perspective cross-sectional view of the rotating shaft assembly in Figure 4.
  • Figure 15 is a cross-sectional view of the rotating shaft assembly in Figure 14;
  • Figure 16 is another partial perspective cross-sectional view of the rotating shaft assembly in Figure 4.
  • Figure 17 is a cross-sectional view of the rotating shaft assembly in Figure 16.
  • Figure 18 is another partial perspective cross-sectional view of the rotating shaft assembly in Figure 4.
  • Figure 19 is a cross-sectional view of the rotating shaft assembly in Figure 18;
  • Figure 20 is another partial perspective cross-sectional view of the rotating shaft assembly in Figure 4.
  • Figure 21 is a cross-sectional view of the rotating shaft assembly in Figure 20;
  • Figure 22 is a schematic three-dimensional structural diagram of the electronic device in Figure 1 folded to a certain angle
  • Figure 23 is a schematic three-dimensional structural view of the rotating shaft assembly in Figure 21;
  • Figure 24 is a schematic three-dimensional structural diagram of the rotating shaft assembly in Figure 23 from another perspective;
  • Figure 25 is a partial perspective cross-sectional view of the rotating shaft assembly in Figure 23;
  • Figure 26 is a cross-sectional view of the rotating shaft assembly in Figure 25;
  • Figure 27 is another partial perspective cross-sectional view of the rotating shaft assembly in Figure 23;
  • Figure 28 is a cross-sectional view of the rotating shaft assembly in Figure 27;
  • Figure 29 is another partial perspective cross-sectional view of the rotating shaft assembly in Figure 23;
  • Figure 30 is a cross-sectional view of the rotating shaft assembly in Figure 29;
  • Figure 31 is another partial perspective cross-sectional view of the rotating shaft assembly in Figure 23;
  • Figure 32 is a cross-sectional view of the rotating shaft assembly in Figure 31;
  • Figure 33 is a schematic three-dimensional structural diagram of the electronic device in Figure 1 in a fully folded state
  • Figure 34 is a schematic three-dimensional structural view of the rotating shaft assembly in Figure 33;
  • Figure 35 is a schematic three-dimensional structural diagram of the rotating shaft assembly in Figure 34 from another perspective;
  • Figure 36 is a partial perspective cross-sectional view of the rotating shaft assembly in Figure 34;
  • Figure 37 is a cross-sectional view of the rotating shaft assembly in Figure 36;
  • Figure 38 is another partial perspective cross-sectional view of the rotating shaft assembly in Figure 34;
  • Figure 39 is a cross-sectional view of the rotating shaft assembly in Figure 38;
  • Figure 40 is another partial perspective cross-sectional view of the rotating shaft assembly in Figure 34;
  • Figure 41 is a cross-sectional view of the rotating shaft assembly in Figure 40;
  • Figure 42 is another partial perspective cross-sectional view of the rotating shaft assembly in Figure 34;
  • Figure 43 is a cross-sectional view of the rotating shaft assembly in Figure 42;
  • Figure 44 is a schematic three-dimensional structural diagram of the rotating shaft assembly in the second embodiment of the present application.
  • Figure 45 is an exploded schematic view of the three-dimensional structure of the rotating shaft assembly in Figure 44;
  • Figure 46 is a schematic three-dimensional structural diagram of the rotating shaft assembly in Figure 45 from another perspective;
  • Figure 47 is a further three-dimensional structural exploded view of the rotating shaft assembly in Figure 45;
  • Figure 48 is a schematic three-dimensional structural diagram of the rotating shaft assembly in Figure 47 from another perspective;
  • Figure 49 is a schematic three-dimensional structural diagram of the rotating shaft assembly in Figure 44 in a folded state
  • Figure 50 is an exploded schematic diagram of the three-dimensional structure of the rotating shaft assembly in Figure 49;
  • Figure 51 is a schematic three-dimensional structural diagram of the rotating shaft assembly in Figure 50 from another perspective;
  • Figure 52 is an exploded schematic diagram of the three-dimensional structure of the rotating shaft assembly in the third embodiment of the present application.
  • Figure 53 is a schematic three-dimensional structural diagram of the rotating shaft device in the fourth embodiment of the present application.
  • Figure 54 is an exploded schematic diagram of the three-dimensional structure of the rotating shaft assembly in Figure 53;
  • Figure 55 is a schematic three-dimensional structural diagram of the rotating shaft assembly in Figure 53 folded to a certain angle
  • Figure 56 is a schematic three-dimensional structural diagram of the rotating shaft assembly in Figure 53 in a fully folded state
  • Figure 57 is a schematic three-dimensional structural diagram of the rotating shaft assembly in the fifth embodiment of the present application.
  • Figure 58 is an exploded schematic diagram of the three-dimensional structure of the rotating shaft assembly in Figure 57;
  • Figure 59 is a schematic three-dimensional structural diagram of the rotating shaft assembly in Figure 57 folded to a certain angle;
  • Figure 60 is a schematic three-dimensional structural diagram of the rotating shaft assembly in Figure 57 in a fully folded state.
  • a rotating shaft assembly, the rotating shaft assembly includes:
  • a linkage member connected to the base and capable of sliding relative to the base along a first direction, the linkage member including a first connecting part and a second connecting part;
  • the first rotating part is rotatably connected to the base.
  • the first rotating part and the first connecting part are rotatably connected through the cooperation of the first spiral groove and the first transmission part.
  • the first spiral The groove is provided in one of the first rotating member and the first connecting part, and the first transmission part is provided in the other of the first rotating member and the first connecting part;
  • the second rotating member is rotatably connected to the base.
  • the second rotating member and the second connecting shaft are rotatably connected through the cooperation between the second spiral groove and the second transmission part.
  • the second spiral member is rotatably connected to the base.
  • the groove is provided in one of the second rotating part and the second connecting part, the second transmission part is provided in the other of the second rotating part and the second connecting part, and the The first spiral groove and the second spiral groove have opposite directions of rotation.
  • the first transmission part moves along the first spiral groove so that the linkage part slides in the first direction relative to the base.
  • the sliding of the base causes the second transmission part to move along the second spiral groove, thereby causing the second rotating member to rotate relative to the second connecting part.
  • the first rotation axis between the first rotation part and the first connection part is parallel to the first direction
  • the second rotation axis between the second rotation part and the two connection parts The line is parallel to the first direction
  • the first rotation axis center line and the second rotation axis center line are parallel to or coincident with each other.
  • the first connecting portion and the second connecting portion are respectively located on both sides of a center line of the linkage member, and the center line of the linkage member is parallel to the first direction.
  • the first spiral groove and the second spiral groove are symmetrical about the center line, or the first rotating member and the second rotating member are symmetrical about the center line.
  • the first connecting part and the second connecting part are arranged on the linkage piece at intervals along the first direction; the first spiral groove and the second spiral groove are offset from each other in the first direction. .
  • the outer peripheral wall of the first connecting part is provided with the first spiral groove, the first transmission part is rotatably accommodated in the first spiral groove, and the first transmission part includes two spiral first Pushing surfaces, the two first pushing surfaces respectively push against the two first inner surfaces opposite to the first spiral groove; the outer peripheral wall of the second connecting part is provided with the second spiral groove, so The second transmission part is rotatably accommodated in the second spiral groove, the second transmission part includes two spiral second pushing surfaces, and the two second pushing surfaces respectively push against the first Two opposite second inner surfaces of the two helical grooves.
  • the first spiral groove is provided on the first rotating member, the outer peripheral wall of the first connecting part is provided with a first transmission block, and the first transmission part is rotatably sleeved on the first connecting part, so The first transmission block is slidably accommodated in the first spiral groove; the second spiral groove is provided in the second rotating member, and a second transmission block is provided on the outer peripheral wall of the second connecting portion, so The second transmission part is rotatably sleeved on the second connecting part, and the second transmission block is slidably accommodated in the second spiral groove.
  • the outer peripheral wall of the first connecting part is provided with the first spiral groove
  • the first transmission part is provided with a first transmission block
  • the first transmission part is rotatably sleeved on the first connection part, so
  • the first transmission block is slidably accommodated in the first spiral groove
  • the outer peripheral wall of the second connecting part is provided with the second spiral groove
  • the second transmission part is rotatably sleeved on the first spiral groove.
  • Two connecting parts, the second transmission block is slidably accommodated in the second spiral groove.
  • the first transmission part includes a first arc plate, the axis line of the first arc plate is collinear with the first rotation axis line, the second transmission part includes a second arc plate, so The axis line of the second arc plate is collinear with the second rotation axis line; the base has a matching groove and stop portions located at opposite ends of the matching groove; the first transmission portion and /or the second transmission part is rotatably received in the matching groove, and the opposite ends of the first transmission part and/or the second transmission part respectively resist the stop part.
  • the first transmission part and the base are rotatably connected through the arc-shaped first limiting groove and the first limiting part to limit the movement of the first transmission part in the first direction. movement, the axis line of the first limiting groove is collinear with the first rotation axis line, and the first limiting groove is provided in one of the first transmission part and the base , the first limiting part is provided on the other one of the first transmission part and the base; an arc-shaped second limiting groove is between the second transmission part and the base.
  • the second limiting part Rotatingly connected with the second limiting part to limit the movement of the second transmission part in the first direction, the axis line of the second limiting groove and the second rotation axis line collinear, the second limiting groove is provided in one of the second transmission part and the base, the second limiting part is provided in one of the second transmission part and the base the other.
  • the linkage piece and the base are slidably connected through the cooperation of the guide slide groove and the guide slide part.
  • the guide slide groove extends along the first direction.
  • the guide slide groove is provided on the base and the guide slide part.
  • One of the linkage parts, the guide sliding part is provided on the base and the other of the linkage parts.
  • the rotating shaft assembly also includes a positioning mechanism, which includes a positioning member connected to the base; the linkage member also includes a limiting portion, when the linkage member slides relative to the base, the linkage member slides relative to the base. The cooperation between the limiting part and the positioning component limits the position of the linkage component relative to the base.
  • the limiting portion includes a first limiting section, a second limiting section and an intermediate limiting section arranged along the first direction.
  • the intermediate limiting section is located between the first limiting section and the second limiting section. between limit sections;
  • the positioning member when the positioning member is positioned at the first limiting section, the first rotating member and the second rotating member are in a completely flat state; when the positioning member is positioned at the second limiting section When the positioning member is positioned at the middle limiting section, the first rotating member and the second rotating member are in a fully folded state. Middle folded state.
  • One of the positioning part and the limiting part is provided with a rack, the teeth of the rack are arranged along the first direction, and the other of the positioning part and the limiting part is provided with There are teeth for matching with the rack;
  • first rotating member and the second rotating member are in a completely flat state; when the latch is positioned at the other end of the rack When, the first rotating member and the second rotating member are in a fully folded state; when the clamping teeth mesh with the teeth of the rack, the first rotating member and the second rotating member are in a fully folded state. Middle folded state.
  • the positioning member includes an elastic positioning portion; when the linkage member slides relative to the base, the limiting portion can push the positioning portion, causing the positioning portion to elastically deform to achieve the limiting portion. The cooperation between the positioning part and the positioning member.
  • the positioning mechanism further includes an elastic member disposed between the base and the positioning member for biasing the positioning member against the limiting portion of the linkage member.
  • the rotating shaft assembly also includes a support mechanism.
  • the support mechanism includes two side supports located on opposite sides of the base. Each side support is connected to the base through an arc-shaped adjustment groove and an adjustment groove.
  • the shafts are movably connected with each other, and the axis line of the adjustment shaft is parallel to the first rotation axis center line; one of the side support members is rotationally connected to the first rotation member, and the other side support member is rotationally connected to the first rotation member.
  • the first supporting member is rotatably connected to the second rotating member.
  • the side support member includes a side support plate and an adjustment arm located on the side of the side support plate close to the base, the adjustment groove is provided on the adjustment arm; the adjustment shaft is provided on the Base, the adjustment shaft is rotatably and slidably accommodated in the adjustment slot.
  • the adjustment groove includes a first positioning section and a second positioning section at its opposite ends.
  • the first positioning section is closer to the side support plate than the second positioning section; when the two side support plates When the two side supports are in a completely flat state, the adjustment shaft is positioned in the first positioning section; when the two side supports are in a fully folded state, the adjustment shaft is positioned in the second positioning section .
  • the support mechanism also includes a middle support member located between the two side supports, and an elastic member connected to the base and the middle support member for biasing the middle part.
  • the support members move closer to the base; when the two side support members are in a completely flat state, the end of the adjustment arm away from the side support plate presses against the back of the middle support member, so The front side of the side support member is coplanar with the front side of the middle support member.
  • the middle support member includes a middle support plate and a guide column located on the back of the middle support plate.
  • the base is provided with a guide hole, and the guide column is slidably inserted into the guide hole;
  • the support mechanism also includes a clamping member, the end of the guide column away from the middle support plate is clamped on the clamping member, and the elastic member is clamped by the clamping member and the base. .
  • the support mechanism also includes a middle support member located between the two side supports, and the linkage member is also provided with a position avoidance slot; when the first rotating member and the second rotating member are completely In the flattened state, the end of the first transmission part away from the corresponding side support and the end of the second transmission part away from the corresponding side support respectively pass through the escape channel and abut against the position.
  • the back side of the middle support piece when the first rotating member and the second rotating member are completely In the flattened state, the end of the first transmission part away from the corresponding side support and the end of the second transmission part away from the corresponding side support respectively pass through the escape channel and abut against the position.
  • a folding shell which includes a rotating shaft assembly and two frames.
  • the rotating shaft assembly includes a base, a linkage member, a first rotating member and a second rotating member.
  • the linking member is connected to the base and can move along the base. The first direction slides relative to the base, and the linkage member includes a first connecting part and a second connecting part; the first rotating member is rotationally connected to the base, and the first rotating member and the The first connecting parts are rotatably connected through the cooperation between the first spiral groove and the first transmission part.
  • the first spiral groove is provided in one of the first rotating member and the first connecting part.
  • the first transmission part is provided on the other one of the first rotating part and the first connecting part; the second rotating part is rotationally connected to the base, and the second rotating part is connected to the first connecting part.
  • the two connecting shafts are rotatably connected through the cooperation between the second spiral groove and the second transmission part.
  • the second spiral groove is provided on one of the second rotating member and the second connecting part.
  • Two transmission parts are provided on the other one of the second rotating member and the second connecting part, and the rotation directions of the first spiral groove and the second spiral groove are opposite; the rotating shaft assembly is located at two locations. Between the frames, the end of the first rotating member of the rotating shaft assembly away from the base is connected to one of the frames, and the end of the second rotating member of the rotating shaft assembly away from the base is connected to the other frame.
  • An electronic device includes a flexible screen, two frames and a rotating shaft assembly.
  • the rotating shaft assembly includes a base, a linkage member, a first rotating member and a second rotating member.
  • the linking member is connected to the base and Able to slide relative to the base in the first direction, the linkage member includes a first connecting part and a second connecting part; the first rotating member is rotationally connected to the base, and the first rotating member is connected to the base.
  • the first connecting parts are rotatably connected through the cooperation between the first spiral groove and the first transmission part, and the first spiral groove is provided in one of the first rotating member and the first connecting part,
  • the first transmission part is provided on the other one of the first rotating part and the first connecting part;
  • the second rotating part is rotationally connected to the base, and the second rotating part is connected to the first connecting part.
  • the second connecting shafts are rotatably connected through the cooperation between the second spiral groove and the second transmission part, and the second spiral groove is provided in one of the second rotating member and the second connecting part, so
  • the second transmission part is provided on the other one of the second rotating part and the second connecting part, the first spiral groove and the second spiral groove have opposite directions of rotation; the rotating shaft assembly is located on both sides.
  • the end of the first rotating member of the rotating shaft assembly away from the base is connected to one of the frames, and the end of the second rotating member of the rotating shaft assembly away from the base is connected to the other frame,
  • the flexible screen is connected to the two frames and the rotating shaft assembly.
  • the electronic device 100 includes a foldable housing 20 and a flexible screen 30 disposed on the foldable housing 20 .
  • the flexible screen 30 may be, but is not limited to, a flexible display screen, a flexible touch screen, a flexible touch display screen, and other flexible components with corresponding functions, or a flexible component fixedly attached to a flexible support plate, such as a flexible component attached to a flexible steel plate. Display screen, flexible touch screen, etc.
  • the flexible screen 30 can be bent or flattened along with the folding housing 20 .
  • the folding housing 20 includes two frames 21 and a rotating shaft assembly 22 connected between the two frames 21 . The opposite sides of the rotating shaft assembly 22 are connected to the two frames 21 respectively.
  • the two frames 21 pass through the rotating shaft assembly 22 Achieve folding or flattening.
  • the flexible screen 30 includes a bendable area 31 corresponding to the rotating shaft assembly 22 , and two non-bending areas 33 connected to opposite sides of the bendable area 31 .
  • the flexible screen 30 is connected to the two frames 21 and the rotating shaft assembly 22.
  • the flexible screen 30 is disposed on the front of the two frames 21 and the front of the rotating shaft assembly 22.
  • the two non-folding sides of the flexible screen 30 are The bendable areas 33 can be respectively fixed on the front surfaces of the two frames 21 , and the bendable areas 31 fit onto the front surfaces of the rotating shaft components 22 .
  • the bendable area 31 of the flexible screen 30 can be bent or flattened along with the rotating shaft assembly 22 .
  • the rotating shaft assembly 22 includes a base 23, a rotating assembly 25 and a supporting mechanism 27.
  • the rotating assembly 25 is connected between the base 23 and the supporting mechanism 27; the rotating assembly 25 includes a linkage 250, A rotating member 253 and a second rotating member 255.
  • the linking member 250 is slidably connected to the base 23 and can slide relative to the base 23 along the first direction.
  • the first rotating member 253 and the second rotating member 255 are respectively provided on the linking member.
  • the linkage member 250 includes a first connecting part 2501 and a second connecting part 2502, the first rotating member 253 and The first connecting parts 2501 are rotatably connected through the cooperation between the first spiral groove and the first transmission part.
  • the first spiral groove is provided in one of the first rotating member 253 and the first connecting part 2501.
  • the first transmission part The other one of the first rotating part 253 and the first connecting part 2501 is provided.
  • the second rotating member 255 and the second connecting part 2502 are rotationally connected through the cooperation between the second spiral groove and the first transmission part.
  • the second spiral groove is provided in one of the second rotating member 255 and the second connecting part 2502 .
  • the second transmission part is provided on the other one of the second rotating part 255 and the second connecting part 2502, and the first spiral groove and the second spiral groove have opposite directions of rotation.
  • the first rotating part 253 rotates relative to the first connecting part 2501
  • the first transmission part moves along the first spiral groove so that the linkage part 250 slides relative to the base 23.
  • the sliding of the base 23 causes the second transmission part to move along the first spiral groove.
  • the second spiral groove moves, thereby causing the second rotating member 255 to rotate synchronously relative to the second connecting part 2502; when the second rotating member 255 rotates relative to the second connecting part 2502, the second transmission part moves along the second spiral groove such that The linkage member 250 slides relative to the base 23.
  • the sliding of the base 23 causes the first transmission part to move along the first spiral groove, causing the first rotating member 253 to rotate synchronously relative to the first connecting part 2501; thereby realizing the first rotation.
  • a first connection part 2501 and a second connection part 2502 are respectively provided on opposite sides of the linkage 250 .
  • the first connection part 2501 and the second connection part 2502 There are two connecting shafts arranged at parallel intervals on the linkage piece 250 , that is, connecting shafts are respectively provided on opposite sides of the linkage piece 250 .
  • the axial center line interval of the first connecting part 2501 is parallel to the axial center line of the second connecting part 2502.
  • the outer peripheral wall of the first connecting part 2501 is provided with a first spiral groove 2503.
  • the outer peripheral wall of the second connecting part 2502 is provided with a second spiral groove.
  • one end of the first rotating member 253 is provided with a first transmission part 2531
  • one end of the second rotating member 255 is provided with a second transmission part 2551.
  • the first transmission part 2531 and the second transmission part 2551 are respectively rotatably accommodated in the third In a spiral groove 2503 and a second spiral groove 2504.
  • the first transmission part 2531 rotates relative to the first spiral groove 2503
  • the first transmission part 2531 pushes the linkage member 250 to slide relative to the base 23 in a direction parallel to the axis of the first connecting part 2501.
  • the linkage member The sliding of 250 relative to the base 23 drives the second transmission part 2551 to rotate along the second spiral groove 2504 relative to the second connecting part 2502, thereby achieving synchronous folding of the first rotating member 253 and the second rotating member 255 relative to the base 23 or Expand simultaneously.
  • the first spiral groove 2503 and the second spiral groove 2504 have the same elements except for opposite directions of rotation. If the first spiral groove 2503 is right-handed, then the second spiral groove 2504 is left-handed. ; If the first spiral groove 2503 is left-handed, the second spiral groove 2504 is right-handed.
  • the support mechanism 27 includes two side support members 271 located on opposite sides of the base 23 and a middle support member 273 located between the two side support members 271 , wherein the side support member 271 is rotatably connected to the first rotary support member 271 . member 253, and the other side support member 271 is rotatably connected to the second rotating member 255; in this embodiment, one side of the side support member 271 is movably connected to the base 23, and the side support member 271 is movably connected to the base 23.
  • the other side of 271 away from the base 23 is rotationally connected to the end of the first rotating member 253 away from the base 23; one side of the other side support member 271 is movably connected to the base 23, and the other side support member 271 is movably connected to the base 23.
  • the other side of 271 away from the base 23 is rotationally connected to the end of the second rotating member 255 away from the base 23 .
  • first rotating member 253 and the second rotating member 255 of the rotating assembly 25 rotate synchronously relative to the first connecting part 2501 and the second connecting part 2502 respectively and move closer to each other, the first rotating member 253 and the corresponding side support member 271 They rotate with each other, and at the same time, the first rotating member 253 drives the side support member 271 to rotate and slide relative to the base 23; the second rotating member 255 and the corresponding side support member 271 rotate with each other, and at the same time, the second rotating member 255
  • the side support members 271 are driven to rotate and slide relative to the base 23 to achieve synchronous folding of the two side support members 271 with each other.
  • the two frames 21 are folded to each other synchronously with the first rotating member 253 and the second rotating member 255 relative to the base 23 respectively, and the bendable area 31 of the flexible screen 30 is bent along with the folding of the rotating shaft assembly 22; when the support mechanism When the flexible screen 27 is in a fully folded state, the two side supports 271 and the middle support 273 form a drop-shaped space to accommodate the bendable area 31 of the flexible screen 30 .
  • first rotating member 253 and the second rotating member 255 of the rotating assembly 25 respectively rotate synchronously relative to the first connecting part 2501 and the second connecting part 2502 and move away from each other, the first rotating member 253 and the corresponding side support member 271 They rotate with each other, and at the same time, the first rotating member 253 drives the side support member 271 to rotate and slide relative to the base 23; the second rotating member 255 and the corresponding side support member 271 rotate with each other, and at the same time, the second rotating member 255 drives the side support member 271 to rotate and slide relative to the base 23. 255 drives the side support 271 to rotate and slide relative to the base 23 to realize the synchronous mutual expansion of the two side supports 271.
  • the two frames 21 face each other with the first rotating member 253 and the second rotating member 255 respectively.
  • the bendable area 31 of the flexible screen 30 is flattened as the rotating shaft assembly 22 is unfolded.
  • the front faces of the two side supports 271 and the front face of the middle support 273 are coplanar, so that the flexible screen 30 can fit between the two side supports 271 and 273 .
  • the front surface refers to the surface facing the same direction as the light exit surface of the flexible screen 30
  • the back surface refers to the surface facing away from the light exit surface of the flexible screen 30 .
  • the electronic device 100 is, for example, but is not limited to a mobile phone, a tablet computer, a monitor, a liquid crystal panel, an OLED panel, a TV, a smart watch, a VR head-mounted display, a vehicle-mounted display, or any other product and component with a display function.
  • Connection in the description of the embodiment of the present invention includes both direct connection and indirect connection.
  • the connection between A and B includes the direct connection between A and B or the connection through a third element C or more other elements. Connection also includes two situations: integrated connection and non-integrated connection. Integrated connection means that A and B are integrated and connected, and non-integrated connection means that A and B are not integrated and connected.
  • the linkage member 250 of the rotating shaft assembly 22 of the present invention is slidably provided on the base 23.
  • the first rotating member 253 is rotatably connected to the first connecting part 2501 through the cooperation of the first transmission part 2531 and the first spiral groove 2503.
  • the member 255 is rotatably connected to the second connecting shaft 2503 through the cooperation between the second transmission part 2551 and the second spiral groove 2504; only the first transmission part 2531 rotates relative to the first spiral groove 2503 or the second transmission part 2551 rotates relative to the first spiral groove 2503.
  • the first rotating member 253 and the second rotating member 255 can be folded or unfolded synchronously relative to the base 23 , thereby realizing the synchronous folding or unfolding of the two side supports 271 .
  • the rotating shaft assembly 22 of the present application omits gears, gear mounting brackets and other components, which not only reduces components, simplifies the structure, reduces manufacturing costs, and reduces
  • the volume of the rotating shaft assembly 22 is reduced, thereby reducing the internal space occupied by the rotating shaft assembly 22 of the folding case 20 , which is beneficial to the layout of other components such as the motherboard or battery in the electronic device 100 and is conducive to the development of miniaturization; in addition, the rotation of the rotating shaft assembly 22
  • the component 25 and the base 23 are small in size, thus occupying the space of the rotating shaft assembly 22, so that the rotating shaft assembly 22 has a large amount of space for accommodating other components, such as a thermal conductive member located under the support mechanism 27, with the opposite ends of the thermal conductive member Connected to the two frames 21 respectively, the heat generated by the motherboard, battery and other components of the electronic device 100 when working is conducted to the two frames 21 through the heat conductive member, which is beneficial to the heat
  • the frame 21 includes a front 211, a back, two opposite side surfaces 214 and two end surfaces 215.
  • the rotating shaft assembly 22 is connected between the two adjacent end surfaces 215 of the two frames 21.
  • the flexible screen The bendable area 31 of the flexible screen 30 is attached to the front surface of the rotating shaft assembly 22 , and the non-bendable area 33 of the flexible screen 30 is connected to the front surface 211 of the frame 21 .
  • the front surface 211 of each frame 21 is provided with a mounting groove 216 at one end close to the rotating shaft assembly 22.
  • the mounting groove 216 passes through the front surface 211 of the frame 21.
  • the opposite ends of the mounting groove 216 extend to the two opposite side surfaces 214 of the frame 21 respectively. .
  • Opposite sides of the rotating shaft assembly 22 are respectively accommodated in the mounting grooves 216 of the two frames 21 , and the first rotating member 253 and the second rotating member 255 are respectively fixedly connected to the corresponding frames 21 .
  • a number of receiving spaces are provided on the back of the frame 21, and the receiving spaces are used for installing circuit boards, batteries and other electronic devices.
  • the first rotation axis L1 between the first rotating part 253 and the first connecting part 2501 is parallel to the first direction
  • the second rotating part between the second rotating part 255 and the second connecting part 2502 The axis L2 is parallel to the first direction
  • the first rotation axis L1 and the second rotation axis L2 are parallel or coincident with each other, and the linkage 250 slides relative to the base 23 along the first direction.
  • the center line O of the linkage 250 is located in the middle between the first rotation axis center line L1 and the second rotation axis center line L2, and the center line O is parallel to the first rotation axis center line L1; that is, the first rotation axis
  • the center line L1 and the second rotation axis center line L2 are symmetrical about the center line O.
  • the center line O, the first rotation axis L1 and the second rotation axis L2 all extend along the Y-axis direction in the three-dimensional coordinate system.
  • the first rotation axis L1 and the second rotation axis The plane where the line L2 is located is parallel to the XY plane, and the linkage 250 slides in a direction parallel to the Y axis.
  • the first connection part 2501 and the second connection part 2502 are respectively located on both sides of the center line O of the linkage part 250, and the center line O of the linkage part 250 is parallel to the first direction; preferably, the first connection part 2501 and the second connection part 2502 is set symmetrically about the center line O.
  • the first rotating member 253 and the second rotating member 255 are arranged symmetrically about the center line O.
  • the first connecting part 2501 and the second connecting part 2502 are arranged symmetrically about the center line O, and the first rotating member 253 and the second rotating member 255 may also be disposed offset in a direction parallel to the central line O.
  • the first spiral groove 2503 and the second spiral groove 2504 are symmetrical about the center line O of the linkage 250, that is, the first spiral groove 2503 and the second spiral groove 2504 are along the direction parallel to the center line O. have the same width, and the two orthographic projections of the first spiral groove 2503 and the second spiral groove 2504 on the same YZ plane overlap.
  • the first transmission part 2531 and the second transmission part 2551 are accommodated in the first spiral groove 2503 and the second spiral groove 2504 respectively, the first transmission part 2531 and the second transmission part 2551 are symmetrical about the center line O of the linkage 250 .
  • the linkage 250 also includes a connecting part 2505 and a limiting part 2506.
  • the first connecting part 2501 and the second connecting part 2502 are respectively connected to opposite sides of the connecting part 2505.
  • the limiting part 2506 is connected to one end of the connecting part 2505.
  • the connecting part 2502 may be, but is not limited to, a rectangular plate, a strip plate, etc.; both the first connecting part 2501 and the second connecting part 2502 may be, but is not limited to, a semicircular column or a semicircular arc column, etc.; the limiting part 2506 may be But not limited to rectangular boards, strip boards, etc.
  • the connecting part 2505 is a rectangular plate, the first connecting part 2501 and the second connecting part 2502 are both semi-circular arc columns, and the two semi-circular arc columns are respectively arranged on opposite sides of the rectangular block.
  • the axis lines of the arc columns coincide with the first rotation axis line L1 and the second rotation axis line L2 respectively, that is, the axis lines of the two semi-circle arc columns are spaced parallel to each other.
  • the limiting part 2506 is a strip-shaped plate, and the limiting part 2506 is provided at one end of the connecting part 2505, that is, the limiting part 2506 extends in the direction of the center line O.
  • the outer peripheral wall of the first connecting part 2501 is provided with a first spiral groove 2503, and the outer peripheral wall of the second connecting part 2502 is provided with a second spiral groove 2504; in this embodiment, the length of the first spiral groove 2503 extending along its axial direction is equal to The lengths of the second spiral grooves 2504 extending along the axial direction are equal; specifically, the first spiral groove 2503 is provided in the middle of the first connecting part 2501, the second spiral groove 2504 is provided in the middle of the second connecting part 2502, and the first spiral groove 2504 is provided in the middle of the second connecting part 2502.
  • the groove 2503 includes an arc-shaped first outer peripheral surface 2503a and two first inner side surfaces 2503b located on opposite sides of the first outer peripheral surface 2503a.
  • the first inner side surface 2503b is a spiral surface; the second spiral groove 2504 includes an arc.
  • the second inner side surface 2504b is a spiral surface; the rotation direction of the first inner side surface 2503b is consistent with the second inner side surface.
  • 2504b has the opposite direction of rotation.
  • the first inner side 2503a and the second inner side 2504a are arranged symmetrically along the center line O, and the first inner side 2503b and the second inner side 2504b at the same end are arranged symmetrically about the center line O.
  • first spiral groove 2503 of the first connecting part 2501 and the second spiral groove 2504 of the second connecting part 2502 are offset from each other in the first direction, that is, the first spiral groove 2503 and the second spiral groove 2504 are in They are mutually misaligned in the direction parallel to the center line O, that is, the two orthographic projections of the first spiral groove 2503 and the second spiral groove 2504 are misaligned on the same YZ plane.
  • the misalignment includes the first spiral groove 2503 and the second spiral groove. 2504Two orthographic projections on the same YZ plane are spaced apart or intersect.
  • first transmission part 2531 and the second transmission part 2551 are respectively accommodated in the first spiral groove 2503 and the second spiral groove 2504, the first transmission part 2531 and the second transmission part 2551 move in a direction parallel to the center line O. misaligned with each other.
  • the orthographic projection area of the first spiral groove 2503 on the YZ plane is located on the YZ plane of the second spiral groove 2504
  • One end of the orthographic projection area on the YZ plane that is, the orthographic projection area of the first outer peripheral surface 2503a on the YZ plane is located at one end of the orthographic projection area of the second outer peripheral surface 2504a on the YZ plane, and the two first inner side surfaces 2503b are on
  • the orthographic projection on the YZ plane is located at one end of the orthographic projection of the two second inner side surfaces 2504b on the YZ plane; or the orthographic projection area of the first spiral groove 2503 on the YZ plane and the second spiral groove 2504 on the YZ plane
  • the orthographic projection area on the YZ plane intersects, that is, the orthographic projection area of the first outer peripheral surface 2503a on the YZ plane intersects with the
  • the widths of the first spiral groove 2503 and the second spiral groove 2504 in the direction parallel to the center line O may be different, and the widths of the first transmission part 2531 and the second transmission part 2551 in the direction parallel to the center line O may be different. It can also be the same, if it is required that the first transmission part 2531 is rotatably accommodated in the first spiral groove 2503, and the two first pushing surfaces 2532 of the first transmission part 2531 respectively slide against both sides of the first spiral groove 2503. a first inner side 2503b; the second transmission part 2551 is rotatably accommodated in the second spiral groove 2504, and the two second pushing surfaces 2552 of the second transmission part 2551 respectively slide against the second spiral groove 2504. Two second medial sides 2504b.
  • the orthographic projection area of the first spiral groove 2503 on the YZ plane may be located within the orthographic projection area of the second spiral groove 2504 on the YZ plane, that is, the orthographic projection area of the first outer peripheral surface 2503a on the YZ plane.
  • the orthographic projections of the two first inner side surfaces 2503b on the YZ plane are located between the orthographic projections of the two second inner side surfaces 2504b on the YZ plane.
  • the orthographic projection area of the second spiral groove 2504 on the YZ plane can be located within the orthographic projection area of the first spiral groove 2503 on the YZ plane, that is, the orthographic projection area of the second outer peripheral surface 2504a on the YZ plane is located In the orthographic projection area of the first outer peripheral surface 2503a on the YZ plane, the orthographic projections of the two second inner side surfaces 2504b on the YZ plane are located between the orthographic projections of the two first inner side surfaces 2503b on the YZ plane.
  • first connecting part 2501 and the second connecting part 2502 may also be provided on the linkage 250 at intervals along the first direction, and the axis line of the first connecting part 2501 and the axis line of the second connecting part 2502 Overlapping, the first spiral groove 2503 on the first connecting part 2501 and the second spiral groove 2504 on the second connecting part 2502 have opposite rotation directions, and the first rotating axis between the first rotating member 253 and the first connecting part 2501
  • the center line L1 coincides with the second rotation axis center line L2 between the second rotation member 255 and the second connection part 2502; because the first connection part 2501 and the second connection part 2502 are spaced apart along the first direction on the linkage part 250 , therefore, the width of the linkage 250 is reduced, so that the width of the rotating shaft assembly is reduced, thereby reducing the rotating shaft assembly occupying the internal space of the folding case 20, which is beneficial to the layout of other components such as the motherboard or battery in the electronic device 100, and has Conducive to miniaturization development
  • the two first pushing surfaces 2532 respectively resist the two opposite first inner sides 2503b of the first spiral groove 2503; when the first transmission part 2531 faces each other
  • the base 23 part 2501 rotates, the first pushing surface 2532 slides against the corresponding first inner side surface 2503b so that the linkage member 250 slides relative to the base 23 .
  • the two second pushing surfaces 2552 respectively resist the two opposite second inner sides 2504b of the second spiral groove 2504; when the second transmission part 2551 faces each other
  • the second pushing surface 2552 slides against the corresponding second inner surface 2504b to make the linkage 250 slide relative to the base 23 .
  • the first transmission part 2531 is a first arc plate provided at one end of the first rotating member 253, and the two first pushing surfaces 2532 are respectively provided on opposite sides of the first arc plate.
  • the inner circumferential surface of the first arc plate and the first outer circumferential surface 2503a of the first connecting part 2501 are rotatably coupled;
  • the second transmission part 2551 is a second circular arc provided at one end of the second rotating member 255 Arc plate, two second pushing surfaces 2552 are respectively provided on opposite sides of the second arc plate, and there is a gap between the inner circumferential surface of the second arc plate and the second outer circumferential surface 2504a of the second connecting part 2502. Fits rotationally.
  • the length of the first spiral groove 2503 and the second spiral groove 2504 spirally extending in the direction parallel to the sliding direction of the linkage member 250 is proportional to the sliding length of the linkage member 250 relative to the base 23 . That is, the longer the length of the first spiral groove 2503 and the second spiral groove 2504 spirally extending in the direction parallel to the center line O, the longer the length of the linkage 250 sliding relative to the base 23; the first spiral groove 2503 and the second spiral groove 2503 The shorter the spiral extension length of the two spiral grooves 2504 in the direction parallel to the center line O, the shorter the sliding length of the linkage 250 relative to the base 23 .
  • the rotation directions of the first inner side 2503b and the second inner side 2504b are opposite, and the angle between the first inner side 2503b and the axis of the first connecting part 2501 is equal to the angle between the second inner side 2504b and the second connecting part 2502.
  • the angle between the axis lines, the length of the first inner side 2503b extending in the direction of the axis of the first connecting part 2501 is equal to the length of the second inner side 2504b extending in the direction of the axis of the second connecting part 2502 ;
  • the connecting part 2505 is provided with an escape slot 2505a, which is used to deflect the first transmission part 2531 and the second transmission part 2551; when the first rotating member 253 and the second rotating member 255 are relative to the linkage member 250
  • the end of the first transmission part 2531 away from the corresponding side support 271 and the end of the second transmission part 2551 away from the corresponding side support 271 respectively pass through the escape passage 2505a and abut against the
  • the back side of the middle support member 273 enables the middle support member 273 to stably support the flexible screen 30 .
  • the limiting portion 2506 includes a first limiting section 2506a, a second limiting section 2506b and a middle limiting section 2506c arranged along the first direction.
  • the first limiting section 2506a is further away from the first limiting section 2506b than the second limiting section 2506b.
  • the rotating member 253, that is, the first limiting section 2506a is further away from the connecting portion 2505 than the second limiting section 2506b, and the middle limiting section 2506c is located between the first limiting section 2506a and the second limiting section 2506b.
  • the length of the first spiral groove 2503 and the second spiral groove 2504 spirally extending in the direction parallel to the sliding direction of the linkage 250 is proportional to the length of the middle limiting section 2506c moving in the direction parallel to the center line O. That is, the longer the length of the first spiral groove 2503 and the second spiral groove 2504 spirally extending in the direction parallel to the center line O, the longer the length of the middle limiting section 2506c moves in the direction parallel to the center line O; the first spiral The shorter the spiral extension length of the groove 2503 and the second spiral groove 2504 in the direction parallel to the center line O, the shorter the length of the middle limiting section 2506c moving in the direction parallel to the center line O.
  • the displacement of the linkage 250 in the direction of the center line O can be increased, thereby achieving a hovering effect of the electronic device 100 at a larger angle.
  • the first transmission part 2531 and the base 23 are rotatably connected through the arc-shaped first limiting groove and the first limiting part, so as to limit the first transmission part 2531 in the Movement in the first direction, that is, the first transmission part 2531 cannot move in the direction of the first rotation axis L1.
  • the axis line of the first limiting groove is collinear with the first rotation axis L1.
  • a limiting groove is provided in one of the first transmission part 2531 and the base 23, and the first limiting part is provided in the other of the first transmission part 2531 and the base 23; the second transmission part 2552 and the base
  • the seats 23 are rotatably connected through the arc-shaped second limiting groove and the second limiting part to limit the movement of the second transmission part 2551 in the first direction, that is, the second transmission part 2251 cannot move in the first direction. Movement in the direction of the second rotation axis line L2.
  • the axis center line of the second limiting groove is collinear with the second rotation axis center line L2.
  • the second limiting groove is provided in the second transmission part 2551 and the base 23.
  • the second limiting part is provided on the other one of the second transmission part 2551 and the base 23 .
  • the base 23 is provided with a first limiting groove 230 and a second limiting groove 231 on two opposite sides of the front, and a first limiting portion 2533 is provided on the outer circumferential surface of the first transmission part 2531, that is, A limiting portion 2533 is a first protrusion provided on the outer peripheral surface of the first transmission portion 2531. The first protrusion is slidably received in the first limiting groove 230.
  • the first protrusion can be It is not limited to cylinders, spheres, rectangular columns, etc.; the second limiting part 2553 is provided on the outer peripheral surface of the second transmission part 2551, that is, the second limiting part 2553 is a second limiting part 2553 provided on the outer peripheral surface of the second transmission part 2551.
  • the second protrusion is slidably received in the second limiting groove 231.
  • the second protrusion can be but is not limited to a cylinder, a sphere, a rectangular column, etc.
  • the front surface of the base 23 is provided with two parallel matching grooves 232 corresponding to the first connecting portion 2501 and the second connecting portion 2502 of the linkage 250.
  • the outer peripheral surface of the first transmission portion 2531 and the outer periphery of the second transmission portion 2551 The surfaces are rotatably received in two matching grooves 232 respectively.
  • each matching groove 232 is an arc-shaped groove.
  • the axis line of one arc-shaped groove is collinear with the first rotation axis line L1, and the axis line of the other arc-shaped groove is collinear with the second rotation axis line L1.
  • the rotation axis L2 is collinear; the outer peripheral surface of the first transmission part 2531 and the second transmission part 2551 are rotatably fitted to the inner peripheral surfaces of the two matching grooves 232 respectively.
  • the inner peripheral surfaces of the two matching grooves 232 are respectively provided with a first limiting groove 230 and a second limiting groove 231 .
  • the first limiting groove 230 and the second limiting groove 231 are arranged symmetrically with respect to the center line O. In other embodiments, the first limiting groove 230 and the second limiting groove 231 are offset from each other in the direction along the center line O.
  • a first limiting groove is provided on the outer peripheral surface of the first transmission part 2531, and the axis line of the first limiting groove is collinear with the first rotation axis line L1;
  • a second limiting groove is provided on the outer peripheral surface, and the axis line of the second limiting groove is collinear with the second rotation axis line L2;
  • the front surface of the base 23 is provided with the first limiting groove and the second limiting groove respectively.
  • There is a first limiting part and a second limiting part. The first limiting part and the second limiting part are slidably received in the first limiting groove and the second limiting groove respectively to limit the first rotation.
  • the member 253 and the second rotating member 255 move in the direction of the center line O relative to the base 23 .
  • the first limiting part and the second limiting part are first protrusions and second protrusions respectively provided on the inner peripheral surfaces of the two matching grooves 232 of the base 23.
  • the first protrusions and the second protrusions are It can be but is not limited to cylinder, sphere, rectangular column, etc.
  • the linkage member 250 and the base 23 are slidingly connected through the cooperation of the guide slide groove and the guide slide part.
  • the guide slide groove extends along the first direction so that the linkage member 250 can move along the first direction.
  • the guide slide groove is provided with The guide sliding portion is provided on one of the base 23 and the linkage member 250 , and is provided on the other one of the base 23 and the linkage member 250 .
  • the linkage 250 is provided with a guide portion 2507
  • the base 23 is provided with a guide groove 234.
  • the guide groove 234 extends in a direction parallel to the center line O; specifically, the outer periphery of the first connecting portion 2501
  • the wall of the first spiral groove 2503 is provided with guide sliding portions 2507 at both opposite ends.
  • the outer peripheral wall of the second connecting portion 2502 is respectively provided with guide sliding portions 2507 at the two opposite ends of the second spiral groove 2504.
  • the front surface of the positioning seat 32 is Two guide slide grooves 234 corresponding to the two guide slide parts 2507 of the first connection part 2501 are provided on one side, and two guide slide grooves 234 corresponding to the two guide slide parts 2507 of the second connection part 2502 are provided on the other side of the front of the positioning base 32 A guide chute 234.
  • the guide part 2507 is an inverted T-shaped guide block.
  • the guide groove 234 includes an insertion opening 234a and a guide section 234b communicating with the insertion opening 234a.
  • the guide section 234b extends in a direction parallel to the center line O, and each guide section 234b extends in a direction parallel to the center line O.
  • the guide slide block can slide along the guide slide section 234b after being inserted into the corresponding insertion opening 234a.
  • guide slide grooves 234 are respectively provided at two opposite ends of the inner peripheral surface of each fitting groove 232 .
  • the outer peripheral wall of the first connecting part 2501 is provided with guide grooves at two opposite ends of the first spiral groove 2503, and each guide groove extends along the axial direction of the first connecting part 2501; and/or
  • the outer peripheral wall of the second connecting part 2502 is respectively provided with guide slide grooves at two opposite ends of the second spiral groove 2504, and each guide slide groove extends along the axial direction of the second connection part 2502.
  • a guide slide portion is provided on the front of the base 23 corresponding to the guide slide groove of the first connection portion 2501 and/or the guide slide groove of the second connection portion 2502, and each guide slide portion can slide along the corresponding guide slide groove.
  • the inner peripheral surface of the fitting groove 232 is provided with a guide slide block corresponding to the guide slide groove, and the guide slide block is slidably accommodated in the corresponding guide slide groove.
  • the side of one side support member 271 away from the base 23 is rotatably connected to the first rotating member 253 through the cooperation of the arc groove and the arc rail, and the other side support
  • the side of the member 271 away from the base 23 is rotatably connected to the second rotating member 255 through the cooperation between the arc groove and the arc rail.
  • the axis line of the arc groove is parallel to the first rotation axis line L1.
  • the first rotating member 253 is provided with a first arc groove 2535 at one end away from the first transmission part 2531
  • the second rotating member 255 is provided with a second arc groove 2555 at one end away from the second transmission part 2551.
  • Arc rails 2711 are respectively provided on the sides of the side supports 271 away from the base 23.
  • the two arc rails 2711 are rotatably received in the first arc groove 2535 and the second arc groove 2555 respectively.
  • the first rotating member 253 also includes a first connecting rod 2536, the first transmission part 253 is connected to one end of the first connecting rod 2536, and the first arc groove 2535 is provided at the opposite end of the first connecting rod 2536; preferably Ground, the first connecting rod 2536 is a rectangular plate, the first transmission part 2531 is connected to the end of the rectangular plate, the end of the rectangular plate away from the first transmission part 2531 is provided with a bump, and the first arc groove 2535 is provided on the first The side surface of a connecting rod 2536, that is, the first arc groove 2535 is provided on the side surface of the bump.
  • the second rotating member 255 also includes a second connecting rod 2556.
  • the second transmission part 255 is connected to one end of the second connecting rod 2556.
  • the second arc groove 2555 is provided at the opposite end of the second connecting rod 2556; preferably, the second connecting rod 2556 is connected to the second connecting rod 2556.
  • the second connecting rod 2556 is a rectangular plate.
  • the second transmission part 2551 is connected to the end of the rectangular plate.
  • the end of the rectangular plate away from the second transmission part 2551 is provided with a bump.
  • the second arc groove 2555 is provided on the second connecting rod. 2556, that is, the second arc groove 2555 is provided on the side of the bump.
  • the fully flat state means that the front surface of the first link 2536 and the front surface of the second link 2556 are coplanar, that is, the angle between the front surface of the first link 2536 and the front surface of the second link 2556 is 180 degrees.
  • the front of the side supports 271 and the front of the middle support 273 are coplanar; the fully folded state means that the front of the first link 2536 and the front of the second link 2556 are parallel to each other, that is, the front of the first link 2536 is parallel to the front of the second link 2556.
  • the angle between the front faces of the second link 2556 is 0 degrees, and the front faces of the two side supports 271 and the front face of the middle support member 273 form a drop-shaped space; the middle folded state refers to the front face of the first link 2536
  • the angle between the front face of the second link 2556 is greater than 0 degrees and less than 180 degrees, and the front faces of the two side supports 271 and the front face of the middle support 273 form any folded state except for coplanar and teardrop-shaped spaces. , that is, the folded state of the electronic device 100 when the angle between the two frames 21 is in the range of greater than 0 degrees and less than 180 degrees.
  • an end of the first rotating member 253 away from the first transmission part 2531 is provided with a first arc rail
  • an end of the second rotating member 255 away from the second transmission part 2551 is provided with a second arc rail.
  • Two The sides of the side supports 271 away from the base 23 are respectively provided with arcuate grooves, and the first arcuate rail and the second arcuate rail are respectively rotatably accommodated in the two arcuate grooves.
  • the end of the first connecting rod 2536 away from the first transmission part 2531 is provided with a first arc rail
  • the end of the second connecting rod 2556 away from the second transmission part 2551 is provided with a second arc rail.
  • Arc grooves are respectively provided on the side of the supporting member 271 away from the base 23 .
  • each side support 271 and the base 23 are movably connected through the cooperation of the arc-shaped adjustment groove and the adjustment shaft, that is, the adjustment shaft slides and rotates in the corresponding adjustment groove;
  • the axis of the adjustment shaft is parallel to the first rotation axis L1.
  • each side support member 271 is provided with an adjustment groove 2713 on one side close to the base 23, and adjustment shafts 235 are provided on opposite sides of the base 23; when the two side support members 271 are When the base 23 is synchronously folded or synchronously unfolded, the adjustment shaft 235 slides and rotates in the corresponding adjustment groove 2713.
  • one end of the front surface of the base 23 is provided with a relief groove 2351, and the front surface of the base 23 is provided with a pair of lugs 2353 at two opposite ends of the relief groove 2351.
  • Each pair of lugs 2353 is spaced apart from each other in the relief groove. 2451 on opposite sides; each adjustment shaft 235 is located between a corresponding pair of lugs 2353, and the opposite ends of the adjustment shaft 235 are respectively rotatably connected to the ends of the corresponding pair of lugs 2353 away from the front of the base 23 .
  • the side support 271 includes a side support plate 2710 and an adjustment arm 2714 located on the side of the side support plate 2710 close to the base 23.
  • the adjustment arm 2714 extends from the side support plate 2710 to one side of the base 23, and is an arc.
  • the rail 2711 is provided on the back side of the side support plate 2710 away from the adjustment arm 2714.
  • the adjustment groove 2713 is provided on the adjustment arm 2714.
  • the adjustment shaft 235 is rotatably and slidably received in the adjustment groove 2713 on the corresponding adjustment arm 2714.
  • the adjusting arm 2714 is an arc-shaped bar, and the middle part of the arc-shaped bar is closer to the base 23 than the opposite ends. That is, the middle part of the adjusting arm 2714 is bent toward one side of the base 23, and the adjusting groove 2713 is closer to the base 23.
  • One end of the adjusting arm 2714 extends along the adjusting arm 2714 to near the other opposite end, that is, the middle part of the adjusting groove 2713 is bent toward the side close to the base 23 .
  • the adjustment groove 2713 includes a first positioning section 2713a and a second positioning section 2713b located at its opposite ends.
  • the first positioning section 2713a is closer to the side support plate 2710 than the second positioning section 2713b; when the two side supports 271 When in a completely flat state, the adjustment shaft 235 is positioned at the first positioning section 2713a, and the end of the adjustment arm 2714 away from the side support plate 2710 is pressed against the back of the middle support member 273, so that the two side support members 271
  • the front surface and the front surface of the middle support member 273 are coplanar, so that the middle support member 273 and the side support members 271 can stably support the flexible screen to prevent the flexible screen from sinking and being damaged.
  • the adjustment shaft 235 is positioned at the second positioning section 2713b, and the end of the adjustment arm 2714 away from the side support plate 2710 is away from the back of the middle support 273, so that the two sides
  • the front side of the bottom support member 271 and the front side of the middle support member 273 form a drop-shaped storage space to facilitate storage of the bendable area of the flexible screen.
  • the end surface of the adjustment arm 2714 away from the side support plate 2710 is set as an arc surface to facilitate folding or unfolding of the side support member 271 .
  • the side support plate 2710 is provided with an escape opening 2716 on a side close to the base 23.
  • the escape opening 2716 is used to escape the corresponding first rotating member 253 and the second rotating member 255.
  • the first rotating member 253 and the second rotating member 255 are respectively accommodated in the corresponding escape openings 2716.
  • the escape opening 2716 is provided close to the corresponding arc rail 2711.
  • the middle support member 273 includes a middle support plate 2731, and a guide column 2733 and a stopper column 2735 located on the back of the middle support plate 2731.
  • the guide column 2733 and the stopper column 2735 are both along the axis perpendicular to the first rotation axis L1. direction extension.
  • the front side of the base 23 is provided with a guide hole 2361 and a through hole 2363 corresponding to the guide column 2733 and the stopper column 2735.
  • the guide column 2733 and the stopper column 2735 are slidably inserted into the guide hole 2361 and the through hole 2363 respectively.
  • one end of the back of the middle support plate 2731 is provided with a stop post 2735 and two guide slide posts 2733.
  • the stop post 2735 is located between the two guide slide posts 2733; the front of the base 23 is close to the escape groove 2351.
  • the support mechanism 27 also includes an elastic member 275 .
  • the elastic member 275 is connected to the base 23 and the middle support member 273 .
  • the elastic member 275 is used to bias the middle support member 273 toward the base 23 .
  • the number of elastic members 275 is two.
  • the two elastic members 275 are respectively connected between the two guide columns 2733 and the base 23.
  • the two elastic members 275 together bias the middle support member 273 toward the base.
  • Seat 23 moves closer.
  • the elastic member 275 may be, but is not limited to, a spring, elastic rubber, spring plastic, etc.
  • the support mechanism 27 also includes a clamping member 276. The end of the guide column 2733 away from the middle support plate 2731 is connected to the clamping member 276.
  • the elastic member 275 is clamped by the clamping member 276 and the base 23, and the elastic member 275 is elastically biased.
  • the middle support plate 2731 moves closer to the base 23 .
  • the clamping member 276 is a strip-shaped clamping plate.
  • the two opposite ends of the clamping member 276 are respectively provided with clamping holes 2762.
  • the middle part of the clamping member 276 is opened into a blocking portion 2764.
  • the two guide sliding columns 2733 are respectively connected to the two clamping holes 2762 of the clamping member 276.
  • the end surface of the stop column 2735 away from the middle support plate 2731 is stopped by the stopper 2764; the back of the base 23 is provided with a clamping connection.
  • the snap-in groove 2365 is suitable for the snap-in member 276, that is, the snap-in member 276 can be accommodated in the snap-in slot 2365.
  • the shape of the snap-in slot 2365 is the same as the shape of the snap-in member 276.
  • the snap-in groove 2365 communicates with the two guide sliding holes 2361 and the through hole 2363. Specifically, the opposite ends of the snap-in slot 2365 communicate with the two guide slide holes 2361 respectively, and the middle part of the snap-in slot 2365 communicates with the through hole 2363.
  • the elastic member 275 is a spring that is sleeved on the guide column 2733. The opposite ends of the spring resist the clamping member 276 and the base 23 respectively. The elastic member 275 biases the middle support member 273 toward the base. The pre-elastic force of seat 23 movement.
  • the rotating shaft assembly 22 also includes a back cover 28 , and the back cover 28 of the base 23 is accommodated.
  • the back cover 28 is a strip frame.
  • the back cover 28 has a receiving groove 280 .
  • the base 23 is received in the receiving groove 280 and is fixedly connected to the back cover 28 .
  • the inner surface of the receiving groove 280 of the back cover 28 is provided with a connecting column 281.
  • the connecting column 281 is provided with a locking hole 283 along the axial direction.
  • the locking member passes through the through hole of the base 23 and is locked to the corresponding lock. Fixing holes 283 are provided so that the base 23 is fixedly connected to the back cover 28 .
  • the back cover 28 is provided with a glue layer on the inner surface of the receiving groove 280 , and the base 23 is connected to the base 23 through the glue layer. In other embodiments, the back cover 28 can also be snapped onto the back cover 28 .
  • the rotating shaft assembly 22 also includes a positioning mechanism 26 .
  • the positioning mechanism 26 includes a positioning member 261 connected to the base 23 .
  • the limiting portion 2506 is in contact with the positioning member 261 .
  • the cooperation between the pieces 261 positions the linkage 250 relative to the base 23 .
  • the end of the limiting portion 2506 away from the connecting portion 2505 can slide against the positioning member 261.
  • the frictional resistance between the limiting portion 2506 and the positioning member 261 can position the linkage member 250 relative to the base 23, thereby achieving
  • the first rotating member 253 and the second rotating member 255 are positioned relative to the base 23 to achieve hovering of the electronic device 100 .
  • the positioning member 261 when the positioning member 261 is positioned at the first limiting section 2506a, the first rotating member 253 and the second rotating member 255 are in a completely flat state, so that the two side supporting members 271 and the middle supporting member 273 remain completely flat.
  • the flattened state makes the electronic device 100 in a completely flattened state; when the positioning member 261 is positioned at the second limiting section 2506b, the first rotating member 253 and the second rotating member 255 are in a completely folded state, so that the two side parts
  • the support member 271 and the middle support member 273 maintain a water drop-shaped fully folded state, so that the electronic device 100 is in a fully folded state; when the positioning member 261 is positioned at the middle limiting section 2506c, the first rotating member 253 and the second rotating member 255 It is in a middle folded state, so that the two side supports 271 can be kept in any folded state except the fully flattened state and the fully folded state, so that the electronic device 100 can be in any hovering state.
  • the positioning member 261 includes a fixing part 2612 and an elastic positioning part 2614.
  • the fixing part 2612 is connected to the positioning part 2614.
  • the limiting portion 2506 can push against the positioning portion 2614 , causing the positioning portion 2614 to elastically deform to realize the cooperation between the limiting portion 2506 and the positioning member 261 .
  • the positioning portion 2614 can be selectively positioned at the first limiting section 2506a, the middle limiting section 2506c, or the second limiting section 2506b, so that the rotating shaft assembly 22 is in a fully flattened state, a middle folded state, or a completely folded state.
  • the positioning part 2614 includes an elastic strip 2614a connected to the fixing part 2612 and a protrusion 2614b provided on the elastic strip 2614a. Through the elastic deformation of the elastic strip 2614a, the protrusion 2614b can be selectively positioned at the first limiting section 2506a and the third limiting section 2506a.
  • the fixing part 2612 is in the form of a fixing plate.
  • Positioning parts 2614 are provided on opposite sides of the fixing plate.
  • a receiving groove 2616 extending along the sliding direction of the linkage 250 is formed between the two positioning parts 2614.
  • the limiting part 2506 is slidable.
  • the elastic strip 2614a is generally L-shaped, and one end of the elastic strip 2614a is connected to the fixed part 2612, and the other end of the elastic strip 2614a is parallel to the sliding direction of the linkage 250. , two elastic strips 2614a surround the receiving groove 2616, and the protrusion 2614b is provided on the side of the elastic strip 2614a facing the receiving groove 2616.
  • a first limiting section 2506a, a second limiting section 2506b and a middle limiting section 2506c are respectively provided on opposite sides of the end of the limiting part 2506 away from the connecting part 2505.
  • the first rotating member 253 and the second rotating member 255 are in a completely flat state; when the positioning member 261 When the two protrusions 2614b are respectively positioned at the second limiting section 2506b of the limiting portion 2506, the first rotating member 253 and the second rotating member 255 are in a completely folded state; when the two protruding pieces 2614b of the positioning member 261 are respectively positioned at When the two middle limiting sections 2506c of the limiting portion 2506 are closed, the first rotating member 253 and the second rotating member 255 are in a middle folded state.
  • the fixed portion 2612 and the base 23 can be fixedly connected through, but not limited to, screw connection, snap connection, glue connection, etc.
  • the positioning mechanism 26 includes a locking member 263, and the positioning member 261 is fixedly connected to the base 23 through the locking member 263; specifically, the fixing part 2612 is provided with a through hole 2613, and one end of the base 23 is provided with a mounting part 237. , a mounting hole 2372 is opened in the mounting part 237, and the locking member 263 passes through the through hole 2613 and is connected to the mounting hole 2372, so that the positioning member 261 is fixedly connected to the base 23.
  • the positioning member 261 can be replaced by an elastic piece.
  • One end of the elastic piece is connected to the base 23.
  • the limiting portion 2506 slides against the elastic piece as the linkage 250 moves, so that the elastic piece can be selected.
  • the first limiting section 2506a, the middle limiting section 2506c or the second limiting section 2506b is positioned at the limiting portion 2506, so that the first rotating member 253 and the second rotating member 255 are in a completely flat state and a middle folded state. or fully folded.
  • the first transmission part 2531 and the second transmission part 2551 are accommodated in the first spiral groove 2503 and the second spiral groove 2504 respectively, so that the first transmission part
  • the inner peripheral surface of 2531 is slidably attached to the first outer peripheral surface 2503a of the first connecting part 2501, and the two first pushing surfaces 2532 of the first transmission part 2531 are respectively slidably attached to the first connecting part 2501.
  • the two first inner surfaces 2503b, the inner peripheral surface of the second transmission part 2551 are slidably attached to the second outer peripheral surface 2504a of the second connection part 2502, and the two second pushing surfaces 2552 of the second transmission part 2551 They are respectively slidably attached to the two second inner surfaces 2504b of the second connecting part 2502.
  • the first transmission part 2531 and the second transmission part 2551 are respectively clamped by the base 23 and the linkage 250.
  • the first transmission part 2531 and the second transmission part 2551 are respectively accommodated in two parts of the base 23.
  • the first limiting part 2533 of the first transmission part 2531 is slidably inserted into the first limiting groove 230
  • the second limiting part 2553 of the second transmission part 2551 is slidably inserted into the second limiting groove 232.
  • the two side supports 271 are placed on opposite sides of the front of the base 23 respectively.
  • the adjustment arm 2714 of the side support 271 is movably sleeved on the corresponding adjustment shaft 235, that is, the adjustment shaft 235 slides and rotates.
  • the first connecting rod 2536 is The escape opening 2716 of one side support member 271; the adjustment arm 2714 of the other side support member 271 is movably sleeved on the corresponding adjustment shaft 235, that is, the adjustment shaft 235 slides and rotates through the adjustment arm. 2714 of the adjustment groove 2713, and the arc rail 2711 of the side support member 271 is rotatably inserted into the second arc groove 2555 of the second rotating member 255, and the second connecting rod 2556 is supporting the other side.
  • the stopper post 2735 and the guide slide post 2733 are respectively extended into the snap-in groove 2365; the two elastic members 275 are respectively sleeved on the two guide slide posts 2733 from the snap-in groove 2365, and the clip is
  • the connector 276 is accommodated in the clamping groove 2365, so that the ends of the two guide columns 2733 away from the middle support plate 2731 are respectively clamped in the two clamping holes 2762 of the clamping member 276, and the elastic member 275 is clamped.
  • the connector 276 is clamped to the base 23 , and the elastic member 275 has an elastic force that biases the middle support member 273 to move toward the base 23 .
  • the base 23 is received in the receiving groove 280 of the back cover 28, and the base 23 and the back cover 28 are fixedly connected.
  • the two adjustment shafts 235 are respectively positioned at the first positioning sections 2713a of the two side supports 271, and the ends of the two adjustment arms 2714 respectively bear against the middle support.
  • the elastic member 275 is extruded and elastically deformed, and the end of the first transmission part 2531 away from the first link 2536 passes through the escape slot 2505a of the linkage 250 and then presses against the back of the middle support plate 2731.
  • the end of the second transmission part 2551 away from the second link 2556 passes through the escape slot 2505a of the linkage 250 and then touches the back of the middle support plate 2731, between the back of the middle support plate 2731 and the front of the base 23 The distance between them is the largest, and the front surface of the middle support member 273 is coplanar with the front surfaces of the two side support members 271 .
  • the protrusions 2614b of the two positioning parts 2614 are respectively positioned on the two first limiting sections 2506a of the limiting part 2506 to limit the sliding of the linkage 250 relative to the base 23 and keep the rotating shaft assembly 22 in a stable and completely flat state.
  • the two adjustment shafts 235 are respectively positioned at the second positioning sections 2713b of the two side supports 271 , and the ends of the two adjustment arms 2714 are respectively away from the middle support plate 2731
  • the elastic reset of the elastic member 275 drives the middle support member 273 to move toward the base 23, and the end of the first transmission part 2531 away from the first link 2536 and the end of the second transmission part 2551 away from the second link 2556 are respectively Accommodated in the two matching grooves 232 of the base 23, the distance between the back of the middle support plate 2731 and the front of the base 23 is the smallest, and the front of the middle support 273 is surrounded by the front of the two side supports 271.
  • the teardrop-shaped space; the bumps 2614b of the two positioning parts 2614 are respectively positioned on the two second limiting sections 2506b of the limiting part 2506 to limit the sliding of the linkage 250 relative to the base 23, so that the rotating shaft assembly 22 remains stable and complete. folded state.
  • the guide slide portion 2507 of the linkage 250 slides in the corresponding guide slide groove 234, and the limit portion 2506 slides against the two bumps 2614b so that the positioning portion 2614 elastically deforms, and the bumps 2614b are separated from the corresponding first limit section. 2506a and then slide relative to the corresponding middle limiting section 2506c until the two protrusions 2614b are respectively positioned on the two second limiting sections 2506b.
  • the sliding energy of the linkage 250 drives the second transmission part 2551 in the second spiral groove 2504 to rotate relative to the second connecting part 2502, and the second limiting part 2553 on the second transmission part 2551 moves along the second part of the base 23
  • the limiting groove 231 slides, so that the second transmission part 2551 can only rotate around the second rotation axis L2 but cannot slide in the direction of the second rotation axis L2. Therefore, the first connecting rod of the first rotating member 253 2536 moves closer to each other as the first transmission part 2531 rotates relative to the first connecting part 2501 and the second connecting rod 2556 of the second rotating member 255 as the second transmission part 2551 rotates relative to the second connecting part 2502.
  • the first rotating member 253 rotates relative to the first connecting part 2501 and the second rotating member 255 rotates relative to the second connecting part 2502
  • the first rotating member 253 and the corresponding side support member 271 pass through the arc track.
  • 2711 and the first arc groove 2535 rotate with each other
  • the second rotating member 255 and the corresponding side support member 271 rotate with each other through the cooperation of the arc rail 2711 with the second arc groove 2555, so that the two side supports
  • the adjusting arms 2714 of 271 are respectively connected to the two adjusting shafts 235 in a rotational and sliding manner.
  • each adjustment shaft 235 rotates and slides in the corresponding adjustment groove 2713, so that the side supports 271 on opposite sides of the base 23 move closer to each other until the adjustment shaft 235 is limited to the second positioning section 2713b, and the two bumps 2614b Positioned at the two second limiting sections 2506b respectively, the adjustment arm 2714 gradually releases the resistance against the middle support plate 2731, and the elastic member 275 biases the middle support member 273 to move toward the base 23 until the two side supports 271
  • the front face and the front face of the middle support member 273 form a water drop shape in cross section.
  • the second rotating member 255 can be rotated around the second connecting portion 2502 relative to the base 23 toward the first rotating member 253, and the second limiting portion 2553 of the second rotating member 255 is at the second limiting position.
  • Slide in the slot 231 so that the second transmission part 2551 rotates around the second rotation axis L2 and cannot move in the direction of the second rotation axis L2.
  • the two second pushing surfaces 2552 slide against the two second inner surfaces 2504b of the second connecting portion 2502 respectively, so that the linkage 250 slides along the center line O.
  • the guide slide portion 2507 of the linkage 250 slides in the corresponding guide slide groove 234, and the limit portion 2506 slides against the two bumps 2614b so that the positioning portion 2614 elastically deforms, and the bumps 2614b are separated from the corresponding first limit section. 2506a and then slide relative to the corresponding middle limiting section 2506c until the two protrusions 2614b are respectively positioned on the two second limiting sections 2506b.
  • the sliding energy of the linkage 250 drives the first transmission part 2531 in the first spiral groove 2503 to rotate relative to the first connecting part 2501, and the first limiting part 2533 on the first transmission part 2531 moves along the first edge of the base 23
  • the limiting groove 230 slides, so that the first transmission part 2531 can only rotate around the first rotation axis L1 but cannot slide in the direction of the first rotation axis L1. Therefore, the second connecting rod 2556 of the second rotating member 255 As the second transmission part 2551 rotates relative to the second connecting part 2502 and the first connecting rod 2536 of the first rotating member 253 moves closer to each other as the first transmission part 2531 rotates relative to the first connecting part 2501.
  • the first rotating member 253 rotates relative to the first connecting part 2501 and the second rotating member 255 is in contact with the second connecting part 2502
  • the first rotating member 253 and the corresponding side support member 271 pass through the arc.
  • the rail 2711 and the first arc groove 2535 rotate with each other
  • the second rotating member 255 and the corresponding side support member 271 rotate with each other through the cooperation of the arc rail 2711 with the second arc groove 2555, so that the two side supports
  • the adjusting arms 2714 of the member 271 are respectively connected to the two adjusting shafts 235 in a rotational and sliding manner.
  • each adjustment shaft 235 rotates and slides in the corresponding adjustment groove 2713, so that the side supports 271 on opposite sides of the base 23 move closer to each other until the adjustment shaft 235 is limited to the second positioning section 2713b, and the two bumps 2614b Positioned at the two second limiting sections 2506b respectively, the adjustment arm 2714 gradually releases the resistance against the middle support plate 2731, and the elastic member 275 biases the middle support member 273 to move toward the base 23 until the two side supports 271
  • the front face and the front face of the middle support member 273 form a water drop shape in cross section.
  • first rotating member 253 and the second rotating member 255 can be rotated together around the first connecting portion 2501 and the second connecting portion 2502 in opposite directions relative to the base 23 at the same time.
  • the support member 271 rotates relative to the first rotating member 253 and the second rotating member 255 respectively, and the two side supporting members 271 move relative to the base 23 respectively, that is, the two adjusting shafts 235 rotate in the two adjusting grooves 2713 respectively.
  • the first pushing surface 2532 and the second transmission part 2551 of the first transmission part 2531 The second pushing surfaces 2552 simultaneously push the first inner side 2503b and the second inner side 2504b respectively, so that the linkage 250 slides relative to the base 23 along the direction of the center line O until the two protrusions 2614b are respectively positioned on Two second limiting sections 2506b; the adjusting arm 2714 gradually releases the resistance against the middle support plate 2731, and the elastic member 275 biases the middle support member 273 to move toward the base 23 until the front and middle sides of the two side support members 271
  • the front surface of the support member 273 is formed into a drop-shaped cross section.
  • the arc rails 2711 on the two side supports 271 simultaneously rotate in the first arc groove 2535 and the second rotation of the first rotating member 253 respectively. Rotate in the second arc groove 2555 of the member 255.
  • the two adjustment shafts 235 rotate and slide in the two adjustment grooves 2713 respectively. Specifically, the adjustment shaft 235 is displaced from the first positioning section 2713a to the second positioning section.
  • the two adjusting arms 2714 gradually release the pressure on the middle support plate 2731, and the elastic member 275 elastically returns to drive the middle support plate 2730 to gradually move toward the base 23; at the same time, the first transmission part 2531 and the second transmission part 2551 respectively Rotating synchronously in the first spiral groove 2503 and the second spiral groove 2504, the first pushing surface 2532 and the second pushing surface 2552 slide against the first inner side 2503b and the second inner side 2504b respectively, so that the linkage 250 Gradually move toward the positioning member 261 in the direction of the center line O.
  • the limiting portion 2506 slides against the convex block 2614b to elastically deform the elastic strip 2614a.
  • the convex block 2614b breaks away from the first limiting section 2506a, it moves relative to the middle limiting section. 2506c slides until the bump 2614b is positioned at the second limiting section 2506b.
  • the first rotating part 253 rotates around the first connecting part 2501 to drive the linkage part 250 to slide relative to the base 23, and the linking part 250 synchronously drives the second rotating part 255 to rotate around the second connecting part 2502, thereby realizing the first rotating part 253 and Synchronous folding of the second rotating member 255; or the second rotating member 255 rotates around the second connecting part 2502 to drive the linking member 250 to slide relative to the base 23, and the linking member 250 synchronously drives the first rotating member 253 around the first connecting part 2501 rotates to achieve synchronous folding of the first rotating member 253 and the second rotating member 255.
  • the linkage mechanism of the rotating shaft assembly 22 does not need to be realized by the meshing of gears, so that the rotating shaft assembly 22 has a simple structure and low manufacturing cost, and the overall volume of the rotating shaft assembly 22 is reduced, which is conducive to the development of product miniaturization; secondly, in the convex When the block 2614b slides relative to the middle limiting section 2506c, the frictional resistance between the positioning member 261 and the limiting portion 2506 positions the linkage member 250 relative to the base 23, so that the first rotating member 253 is positioned at 0 relative to the base 23.
  • Any angle between 0 and 90 degrees and the second rotating member 255 is positioned at any angle between 0 and 90 degrees relative to the base 23; at the same time, the side support 271 is positioned at 0 degrees relative to the base 23 Any angle between 0 and 120 degrees, that is, the angle between the front of the side support 271 and the front of the base 23 ranges from 0 to 120 degrees, so that the electronic device 100 can hover at a larger angle. .
  • the back of the flexible screen 30 is connected to the front 211 of the two frames 21 and the front of the rotating shaft assembly 22; specifically, the bendable area 31 is attached to the front and middle supports of the two side supports 271 of the rotating shaft assembly 22. 273, the two non-bending areas 33 are respectively attached to the front surfaces 211 of the two frames 21. Since the rotating shaft assembly 22 can realize synchronous flattening or synchronous folding only through the cooperation of the base 23, the linkage member 250, the first rotating member 253 and the second rotating member 255, the rotating shaft assembly 22 not only has fewer components, but also has a simple structure. The manufacturing cost is low and the internal space occupied by the back cover 28 is small, which helps the back cover 28 leave enough space for placing heat dissipation materials, flexible cables or other components.
  • the overall volume of the rotating shaft assembly 22 is small. Therefore, the internal space occupied by the rotating shaft assembly 22 of the housing 20 is reduced, which is beneficial to the layout of other components such as the motherboard or battery, and is beneficial to miniaturization and thinning of the electronic device 100 .
  • the other side of the support member 271 away from the base 23 rotates relative to the second rotating member 255, and
  • the other side support 271 is connected to the base 23 through the adjustment shaft 235 and the adjustment groove 2713 in a rotational and sliding manner to achieve synchronous folding of the rotating shaft assembly 22.
  • the bendable area 31 of the flexible screen 30 follows the rotating shaft. Component 22 is bent. Specifically, if a bending force is applied to the frame 21 connected to the first rotating member 253, the frame 21 drives the first rotating member 253 to surround the first connecting part 2501 relative to the base 23 and move closer to the flexible screen 30. Side rotation, the first transmission part 2531 rotates in the first spiral groove 2503 and the push linkage 250 slides along the center line O toward the positioning member 261.
  • the sliding of the linkage 250 drives the second linkage in the second spiral groove 2504.
  • the transmission part 2551 rotates synchronously relative to the base 23 around the second connecting part 2502, causing the second rotating member 255 to rotate toward the side close to the flexible screen 30, thereby realizing the first rotating member 253 and the second rotating member 255 relative to the base. 23 rotate synchronously and move closer to each other.
  • the first rotating member 253 and the side support member 271 rotate through the cooperation between the arc rail 2711 and the first arc groove 2535.
  • the adjustment shaft 235 on the base 23 is in the adjustment groove 2713 of the corresponding adjustment arm 2714.
  • the support member 273 moves to the side away from the flexible screen 30 , and the front faces of the two side supports 271 and the front face of the middle support member 273 form a water drop shape in cross section; the bendable area 31 of the flexible screen 30 moves along with the rotating shaft assembly 22 Bend until the bendable area 31 is bent into a drop shape, thereby realizing the folding of the electronic device 100 .
  • the middle support member 273 moves closer to the base 23 , so that the drop-shaped space enclosed by the front of the middle support 273 and the fronts of the two side supports 271 is larger, which is convenient for the flexible screen 30
  • the bendable area 31 is bent into a teardrop shape, thereby reducing the duty cycle of the bendable area 31 after bending, thereby reducing the overall thickness of the electronic device 100 .
  • an unfolding force is applied to at least one of the two frames 21 of the electronic device 100, so that the first rotating member 253 and the second rotating member 255 connected to the two frames 21 are relative to each other.
  • the base 23 rotates in a direction away from each other.
  • the side of the one side support member 271 away from the base 23 rotates relative to the first rotating member 253 , and there is a gap between the one side support member 271 and the base 23 .
  • Through the adjusting shaft 235 and the adjusting groove 2713 they are rotationally and slidingly connected.
  • the side of the other side support member 271 away from the base 23 rotates relative to the second rotating member 255, and the other side support member 271 is connected with the base 271 .
  • the seats 23 are connected in a rotational and sliding manner through the cooperation of the adjusting shaft 235 and the adjusting groove 2713 to realize the unfolding of the rotating shaft assembly 22 , and the bendable area 31 of the flexible screen 30 is flattened along with the rotating shaft assembly 22 .
  • the frame 21 drives the first rotating member 253 to surround the first connecting part 2501 relative to the base 23 to the side away from the flexible screen 30 Rotation, the rotation of the first transmission part 2531 in the first spiral groove 2503 pushes the linkage member 250 to slide along the center line O away from the positioning member 261.
  • the sliding of the linkage member 250 drives the third linkage member 250 in the second spiral groove 2504.
  • the two transmission parts 2551 rotate synchronously relative to the base 23 around the second connecting part 2502, so that the second rotating member 255 synchronously rotates to the side away from the flexible screen 30, thereby realizing the first rotating member 253 and the second rotating member 255 relative to each other.
  • the base 23 rotates synchronously and moves away from each other; at the same time, the first rotating member 253 and the side support member 271 rotate through the cooperation of the arc rail 2711 and the first arc groove 2535, and the adjusting shaft 235 on the base 23 rotates accordingly.
  • the adjustment shaft 235 slides and rotates from the second positioning section 2713b of the adjustment groove 2713 to the first positioning section 2713a; the second rotating member 255 and the side support 271
  • the adjustment shaft 235 on the base 23 slides and rotates in the adjustment groove 2713 of the corresponding adjustment arm 2714, that is, the adjustment shaft 235 moves from the adjustment groove 2713.
  • the second positioning section 2713b slides and rotates to the first positioning section 2713a, so that the side supports 271 on opposite sides of the base 23 move away from each other until the adjustment shaft 235 is limited to the first positioning section 2713a and the positioning member 261 is positioned
  • the middle support member 273 moves toward the side close to the flexible screen 30, so that the side supports 271 on opposite sides of the base 23 spread out from each other until the two side supports 271 are in contact with the base.
  • 23 is in a flat shape, and the bendable area 31 of the flexible screen 30 is unfolded along with the rotating shaft assembly 22 until the flexible screen 30 is completely flattened, thereby realizing the flattening of the electronic device 100 .
  • the middle support member 273 moves away from the base 23, so that the middle support member 273 supports the bendable area 31 of the flexible screen 30, so that the front side of the side support plate 271 is in contact with the middle support member 273.
  • the front surfaces are kept coplanar, so that the side support plates can stably support the flexible screen 30 and prevent the flexible screen 30 from sinking and being damaged.
  • the rotating shaft assembly 22 of the electronic device 100 of the present invention realizes synchronous bending or synchronous unfolding through the rotating assembly 25, which is easy to operate; because the rotating assembly 25 only includes the linkage member 250 slidably provided on the base 23, and the linkage members 250 are respectively rotatably connected to the linkage member 250.
  • the adjustment shaft 235 is limited to the second positioning section 2713b and the positioning member 261 is positioned to the second positioning section 2713b of the limiting portion 2506. Therefore, the components are not easily moved when the electronic device 100 falls. position to avoid damaging the flexible screen 30; when the electronic device 100 is in a completely flat state, the adjustment shaft 235 is limited to the first positioning section 2713a and the positioning member 261 is positioned to the first limiting section 2506a of the limiting part 2506. Therefore, the electronic device 100 is in a completely flat state. When the device 100 falls, each component is not easily displaced to avoid damaging the flexible screen 30 .
  • the rotating shaft assembly 22 realizes the limitation of the linkage 250 relative to the base 23 through the cooperation of the limiting portion 2506 and the positioning member 261. Specifically, the frictional resistance between the bump 2614b and the middle limiting section 2506c makes the flexible screen 30 foldable.
  • the bending area 31 is positioned at any bending angle, so that the two frames 21 can be freely adjusted in the unfolded state, the folded state and the intermediate folding state, that is, the electronic device 100 can be positioned in the unfolded state, the folded state and any intermediate folding state. This enables the electronic device 100 to have a hovering function from 0 degrees to 180 degrees between the two frames 21, and the hovering angle range is large.
  • the structure of the rotating shaft assembly 22a in the second embodiment of the present application is similar to the structure of the rotating shaft assembly 22 in the first embodiment. The difference is that in the second embodiment, the first rotation
  • the first transmission part 2531 of the member 253a is provided with a first spiral groove 2503, and the outer peripheral wall of the first connection part 2501 is provided with a first transmission block 2508.
  • the first transmission part 2531 is rotatably sleeved on the first connection part 2501.
  • a transmission block 2508 is slidably accommodated in the first spiral groove 2503; the second transmission part 2551 of the second rotating member 255a is provided with a second spiral groove 2504, and the outer peripheral wall of the second connecting part 2502 is provided with a second transmission block 2509, the second transmission part 2551 is rotatably sleeved on the second connecting part 2502, and the second transmission block 2509 is slidably accommodated in the second spiral groove 2504; the first spiral groove 2503 and the second spiral groove 2504 have opposite directions of rotation. .
  • the first transmission part 2531 rotates relative to the first connection part 2501 or the second transmission part 2551 rotates relative to the second connection part 2502
  • the first transmission part 2531 only rotates around the first connection part 2501 and in the first connection part 2501 axial limit, that is, the first transmission part 2531 cannot be axially displaced in the first connection part 2501
  • the second transmission part 2551 only rotates around the second connection part 2502 and is axially limited in the second connection part 2502 , that is, the second transmission part 2551 cannot be displaced in the axial direction of the second connection part 2502
  • the first transmission block 2508 slides along the first spiral groove 2503 to push the linkage
  • the member 250a moves in the axial direction parallel to the first connecting part 2501.
  • the movement of the linkage member 250a drives the second transmission block 2509 to slide along the second spiral groove 2504, so that the second transmission part 2551 rotates around the second connecting part 2502, thereby achieving The first transmission part 2531 and the second transmission part 2551 rotate synchronously.
  • the linkage member 250a and the base 23a are connected slidingly through the cooperation between the guide slide portion 2507 and the guide slide groove 234.
  • the length of the first spiral groove 2503 and the second spiral groove 2504 extending spirally in the direction parallel to the sliding direction of the linkage member 250a is equal to
  • the length of the linkage 250a sliding relative to the base 23a is proportional to the length.
  • both the first connecting part 2501 and the second connecting part 2502 may be, but are limited to, a cylinder, a semi-cylinder, a semi-arc cylinder, etc.
  • the first connecting part 2501 and the second connecting part 2502 are both Semi-cylinder, the first connecting part 2501 and the second connecting part 2502 are symmetrically arranged about the center line O; the first rotation axis line L1 between the first transmission part 2531 and the first connecting part 2501 and the first connecting part 2501 The axis center lines are collinear, and the second rotation axis center line L2 between the second transmission part 2551 and the second connection part 2502 is collinear with the axis center line of the first connection part 2501.
  • the first transmission part 2531 and the second transmission part 2551 on opposite sides of the linkage 250a can be arranged symmetrically with respect to the center line O.
  • the first spiral groove 2503 and the second spiral groove 2504 can be arranged symmetrically with respect to the center line O.
  • the second transmission block 2509 can be arranged symmetrically with respect to the center line O.
  • the first transmission part 2531 and the second transmission part 2551 on opposite sides of the linkage 250a can also be misaligned with each other along the center line O, and the first spiral groove 2503 and the second spiral groove 2504 can also be misaligned with each other along the center line O.
  • the block 2508 and the second transmission block 2509 can also be offset from each other along the center line O.
  • the first transmission part 2531 and the second transmission part 2551 are symmetrical about the center line O
  • the first spiral groove 2503 and the second spiral groove 2504 are symmetrical about the center line O
  • the first transmission block 2508 and the second transmission block 2509 Symmetrical about the center line O; specifically, the orthographic projection area of the first transmission part 2531 on the YZ plane coincides with the orthographic projection area of the second transmission part 2551 on the YZ plane, and the first spiral groove 2503 is on the YZ plane.
  • the orthographic projection area of the second spiral groove 2504 on the YZ plane coincides with the orthographic projection area of the first transmission block 2508 on the YZ plane and the orthographic projection area of the second transmission block 2509 on the YZ plane.
  • the first transmission block 2508 and the second transmission block 2509 are slidably accommodated in the first spiral groove 2503 and the second spiral groove 2504 respectively.
  • the first transmission block 2508 can be, but is not limited to, a rectangular block, a gear block, a sphere, etc.
  • the two opposite surfaces of the first transmission block 2508 respectively slide against the two opposite inner sides of the first spiral groove 2503;
  • the second transmission block 2509 It may be, but is not limited to, a rectangular block, a gear block, a sphere, etc.
  • the two opposite surfaces of the second transmission block 2509 slide against the two opposite inner surfaces of the second spiral groove 2504 respectively.
  • the first transmission block 2508 and the second transmission block 2509 are both rectangular blocks, and the two opposite sides of the first transmission block 2508 slide against the two opposite inner sides of the first spiral groove 2503 respectively.
  • the two side surfaces are spaced apart in the direction of the first rotation axis L1; the two opposite side surfaces of the second transmission block 2509 respectively slide against the two opposite inner side surfaces of the second spiral groove 2504, and the two side surfaces rotate during the second rotation. They are arranged at intervals in the direction of the axis line L2.
  • first transmission part 2531 and the second transmission part 2551 are offset from each other in the direction along the center line O
  • first spiral groove 2503 and the second spiral groove 2504 are offset from each other in the direction along the center line O
  • the first transmission block 2508 and the second transmission block 2509 are mutually offset in the direction along the center line O; the first transmission block 2508 and the second transmission block 2509 are slidably accommodated in the first spiral groove 2503 and the second spiral groove 2504 respectively. middle.
  • the orthographic projection area of the first transmission part 2531 on the YZ plane is located at one end of the orthographic projection area of the second transmission part 2551 on the YZ plane, and the orthographic projection area of the first spiral groove 2503 on the YZ plane is located at the third
  • the two spiral grooves 2504 are at one end of the orthographic projection area on the YZ plane.
  • the orthographic projection area of the first transmission block 2508 on the YZ plane is located at one end of the orthographic projection area of the second transmission block 2509 on the YZ plane.
  • the first The transmission block 2508 and the second transmission block 2509 are slidably accommodated in the first spiral groove 2503 and the second spiral groove 2504 respectively; or, the orthographic projection area of the first transmission part 2531 on the YZ plane and the second transmission part 2551 are in The orthographic projection area on the YZ plane intersects.
  • the orthographic projection area of the first spiral groove 2503 on the YZ plane intersects with the orthographic projection area of the second spiral groove 2504 on the YZ plane.
  • the first transmission block 2508 intersects on the YZ plane.
  • the orthographic projection area on the YZ plane intersects the orthographic projection area of the second transmission block 2509 on the YZ plane.
  • the first transmission block 2508 and the second transmission block 2509 are slidably accommodated in the first spiral groove 2503 and the second spiral groove 2504 respectively. middle.
  • first transmission part 2531 and the second transmission part 2551 on opposite sides of the linkage 250a are arranged symmetrically about the center line O, and the first spiral groove 2503 and the second spiral groove 2504 are in the direction along the center line O.
  • first transmission block 2508 and the second transmission block 2509 are misaligned with each other in the direction along the center line O.
  • the orthographic projection area of the first transmission part 2531 on the YZ plane coincides with the orthographic projection area of the second transmission part 2551 on the YZ plane; the orthographic projection area of the first spiral groove 2503 on the YZ plane is located in the second One end of the orthographic projection area of the spiral groove 2504 on the YZ plane, or the orthographic projection area of the first spiral groove 2503 on the YZ plane intersects the orthographic projection area of the second spiral groove 2504 on the YZ plane; the first transmission The orthographic projection area of the block 2508 on the YZ plane is located at one end of the orthographic projection area of the second transmission block 2509 on the YZ plane, or the orthographic projection area of the first transmission block 2508 on the YZ plane is in line with the second transmission block 2509 The orthographic projection areas on the YZ plane intersect, and the first transmission block 2508 and the second transmission block 2509 are slidably accommodated in the first spiral groove 2503 and the second spiral groove 2504 respectively.
  • the first rotating member 253a and the second rotating member 255a on opposite sides of the linkage member 250a may be symmetrical or asymmetrical about the center line O; in this embodiment, the first rotating member 253a and the second rotating member 255a are about the center line O. symmetry.
  • the length of the first transmission part 2531 extending along the first rotation axis L1 and the length of the second transmission part 2551 extending along the second rotation axis L2 may be the same or different; in this embodiment, the first transmission part The length of 2531 extending along the first rotation axis L1 is equal to the length of the second transmission part 2551 extending along the second rotation axis L2.
  • the first transmission part 2531 is a first arc plate.
  • the inner circumferential surface of the first arc plate is rotatably attached to the outer circumferential surface of the first connecting part 2501.
  • the axis of the first arc plate is The center line is collinear with the first rotation axis center line L1.
  • the first spiral groove 2503 is provided on the first rotating member 253a.
  • the first spiral groove 2503 is provided on the inner peripheral surface of the first transmission part 2531.
  • the first transmission block 2508 is provided on the outer peripheral wall of the first connecting part 2501.
  • the second transmission part 2551 is a second arc plate.
  • the inner circumferential surface of the second arc plate is rotatably attached to the outer circumferential wall of the second connecting part 2502.
  • the axis center line of the second arc plate is in contact with the second arc plate.
  • the rotation axis L2 is collinear, and the second spiral groove 2504 is provided on the second rotating member 255a.
  • the second spiral groove 2504 is provided on the inner peripheral surface of the second transmission part 2551, and the second transmission block 2509 is provided on the second transmission part 2551.
  • the second transmission block 2509 is slidably accommodated in the second spiral groove 2504.
  • the base 23 has a mating groove 232 and stop portions 238 provided at opposite ends of the mating groove 232.
  • the first transmission portion 2531 and/or the second transmission portion 2551 are rotatably accommodated in the mating groove 232.
  • the first transmission portion 2531 and /Or the two opposite ends of the second transmission part 2551 respectively resist the stopper 238 .
  • the front of the base 23a is provided with two matching grooves 232 corresponding to the first connecting part 2501 and the second connecting part 2502.
  • the base 23a is respectively provided with stopper parts 238 at two opposite ends of each matching groove 232.
  • the first transmission part 2531 and the second transmission part 2551 are respectively rotatably received in the two matching grooves 232; the opposite ends of the first transmission part 2531 respectively abut the stopper part 238 to limit the first transmission part 2531 from surrounding the first When the connecting part 2501 rotates, it moves in the direction of the axis of the first connecting part 2501; the opposite ends of the second transmission part 2551 respectively resist the stopper part 238 to restrict the second transmission part 2551 from rotating around the second connecting part 2502 when moving in the direction of the axis of the second connecting portion 2502.
  • the fitting groove 232 is an arc groove
  • the axis line of one fitting groove 232 is collinear with the first rotation axis line L1
  • the axis line of the other fitting groove 232 is collinear with the second rotation axis line L2.
  • the stopper 238 may be, but is not limited to, an arc bar, a rectangular block, etc. provided at the end of the fitting groove 232 .
  • the matching groove 232 can be recessed in the front surface of the positioning seat, that is, the front surface of the matching groove 232 and the front surface of the positioning seat are not coplanar, so that a step surface is formed between the front surface of the positioning seat and the front surface of the matching groove 232 ;
  • the first transmission part 2531 and the second transmission part 2551 are respectively rotatably accommodated in the two matching grooves 232.
  • the end surfaces of the opposite ends of the first transmission part 2531 respectively slide against the two opposite step surfaces of the corresponding matching grooves 232.
  • the end surfaces of the opposite ends of the second transmission part 2551 slide against the corresponding mating grooves 232 to oppose each other.
  • the first transmission part 2531 of the first rotating member 253a and the base 23a are rotatably connected through the arc-shaped first limiting groove and the first limiting part.
  • the axis line of the groove is collinear with the first rotation axis line L1.
  • the first limiting groove is provided in one of the first transmission part 2531 and the base 23a.
  • the first limiting part is provided in the first transmission part. 2531 and the other one of the base 23a; when the first transmission part 2531 rotates around the first connection part 2501, the limiting part slides in the limiting groove to limit the first transmission part 2531 from the first connection part 2501 Move in the direction of the axis.
  • the second transmission part 2551 of the second rotating member 255a and the base 23a are rotatably connected through the arc-shaped second limiting groove and the second limiting part.
  • the axis line of the second limiting groove is in line with the second limiting groove.
  • the second rotation axis L1 is collinear.
  • the second limiting groove is provided in one of the second transmission part 2551 and the base 23a.
  • the second limiting part is provided in the second transmission part 2551 and the base 23a. the other; when the second transmission part 2551 rotates around the second connection part 2502, the second limiting part slides in the second limiting groove to limit the second transmission part 2551 at the axis center of the second connection part 2502 Move upward in the line direction.
  • the assembly method of the rotating shaft assembly 22a in the second embodiment of the present application is the same as the assembly method of the rotating shaft assembly 22 in the first embodiment, and will not be described again.
  • the structure of the rotating shaft assembly 22b in the third embodiment of the present application is similar to the structure of the rotating shaft assembly 22a in the second embodiment. The difference is that in the third embodiment, the outer peripheral wall of the first connecting portion 2501 A first spiral groove 2503 is provided.
  • the first transmission part 2531 is provided with a first transmission block 2508.
  • the first transmission part 2531 is rotatably sleeved on the first connecting part 2501.
  • the first transmission block 2508 is slidably accommodated in the first spiral groove.
  • the second transmission part 2551 is rotatably sleeved on the second connection part 2502, and the second transmission block 2509 is slidably accommodated in the second spiral groove. 2504; the first spiral groove 2503 and the second spiral groove 2504 have opposite directions of rotation.
  • the first transmission part 2531 and the second transmission part 2551 can rotate relative to the first connection part 2501 and the second connection part 2502 respectively.
  • the first transmission part 2531 rotates relative to the first connection part 2501 or the second transmission part 2551 rotates relative to the second connection part 2501 .
  • the first transmission part 2531 only rotates around the first connection part 2501 and is limited in the axial direction of the first connection part 2501, that is, the first transmission part 2531 cannot be displaced in the axial direction of the first connection part 2501.
  • the second transmission part 2551 only rotates around the second connection part 2502 and is limited in the axial direction of the second connection part 2502, that is, the second transmission part 2551 cannot be displaced in the axial direction of the second connection part 2502; in the first transmission
  • the first transmission block 2508 slides along the first spiral groove 2503 to push the linkage member 250a to move in the axial direction parallel to the first connection portion 2501, and the movement of the linkage member 250a drives the third linkage member 250a.
  • the second transmission block 2509 slides along the second spiral groove 2504, causing the second transmission part 2551 to rotate around the second connecting part 2502, thereby achieving synchronous rotation of the first transmission part 2531 and the second transmission part 2551.
  • the structure of the rotating shaft assembly 22c in the fourth embodiment of the present application is similar to the structure of the rotating shaft assembly 22 in the first embodiment. The difference is that in the fourth embodiment, the positioning member 261a It is slidably connected to the limiting portion 2506 through the cooperation of the rack and the latching teeth.
  • the teeth of the rack are arranged along the first direction, that is, the teeth are arranged along the direction parallel to the first rotation axis line L1.
  • the bar is provided on one of the positioning member 261a and the limiting part 2506, and the latch is provided on the other of the positioning member 261a and the limiting part 2506; when the latch is positioned on the rack close to the first rotating member 253
  • the first rotating member 253 and the second rotating member 255 are positioned at one end of the rack away from the first rotating member 253, the first rotating member 253 and the second rotating member 255 are in a completely flat state.
  • 255 is in a fully folded state; when the teeth of the rack are engaged with the teeth of the rack, the first rotating member 253 and the second rotating member 255 are in an intermediate folded state.
  • the positioning member 261a is provided with a rack 2617
  • the limiting portion 2506 is provided with a latch 2506d.
  • the limiting portion 2506 slides along the center line O with the linkage 250c, so that the latch 2506d can be selectively positioned on the tooth.
  • the end of the bar 2617 close to the first rotating member 253, the teeth of the rack 2617 and the end away from the first rotating member 253 make the first rotating member 253 and the second rotating member 255 in a completely flat state, a middle folded state and a completely folded state.
  • a rack may be provided on the limiting part 2506, and the teeth of the rack may be arranged along the extending direction of the limiting part 2506; the positioning member 261a may be provided with latch teeth, and the latch teeth may be provided on the bump. 2614b.
  • the latch can be selectively positioned at the end of the rack close to the first rotating member 253, the teeth of the rack, and the end away from the first rotating member 253. , so that the first rotating member 253 and the second rotating member 255 are in a fully flattened state, an intermediate folded state and a fully folded state.
  • the two opposing protrusions 2614b of the positioning member 261 are provided with a rack 2617 on the side facing the receiving groove 2616.
  • the teeth of the rack 2617 are parallel to the end surface of the rack 2617 from the end surface close to the first rotating member 253.
  • the direction of the center line O is aligned to the end surface away from the first rotating member 253; the limiting portion 2506 is provided with teeth 2506d on opposite sides of the end away from the first rotating member 253.
  • the angle between the rotating member 253 and the second rotating member 255 is 180 degrees; when the two latch teeth 2506d are respectively positioned at the ends of the two racks 2617 away from the first rotating member 253, the first rotating member 253 and the second rotating member 255
  • the two rotating parts 255 are in a completely folded state, that is, the first rotating part 253 and the second rotating part 255 are parallel (the included angle is 0 degrees); when the two latch teeth 2506d are respectively positioned on the teeth of the two racks 2617, the The first rotating member 253 and the second rotating member 255 are in an intermediate folded state, that is, the angle between the first rotating member 253 and the second rotating member 255 is greater than 0 degrees and less than 180 degrees.
  • the length of the first spiral groove 2503 and the second spiral groove 2504 extending spirally in the direction parallel to the sliding direction of the linkage 250c is proportional to the length of the teeth of the rack 2617 arranged in the direction parallel to the center line O. That is to say, the longer the length of the first spiral groove 2503 and the second spiral groove 2504 extending spirally in the direction parallel to the center line O, the longer the length of the teeth of the rack 2617 arranged in the direction parallel to the center line O; the first spiral The shorter the spiral extension length of the groove 2503 and the second spiral groove 2504 in the direction parallel to the center line O, the shorter the length of the teeth of the rack 2617 arranged in the direction parallel to the center line O.
  • the assembly of the rotating shaft assembly 22c in the fourth embodiment of the present application is the same as the assembly of the rotating shaft assembly 22 in the first embodiment, and will not be described again.
  • the rotating shaft assembly 22c achieves folding and positioning through the cooperation of the rack 2617 and the latch 2506d, so that the folding and positioning of the rotating shaft assembly 22c is more stable.
  • the fourth embodiment of the present application also includes a folding case and an electronic device provided with the above-mentioned rotating shaft assembly 22c.
  • the rotating shaft assembly 22c of the electronic device achieves folding positioning through the cooperation of the rack 2617 and the latch 2506d.
  • the electronic device When the electronic device is in a completely flat state, when the latch 2506d is positioned close to the rack 2617, When one end of the rotating member 253 is turned, the electronic device can maintain a stable and completely flat state.
  • the components When the electronic device falls, the components are not easily displaced to avoid damage to the flexible screen; when the electronic device is in a fully folded state, the latch 2506d is positioned At the end of the rack 2617 away from the first rotating member 253, the components of the electronic device are not easily displaced when the electronic device falls, so as to avoid damaging the flexible screen; when the clamping teeth 2506d engage with the teeth of the rack 2617, the electronic device can be positioned at any position.
  • the bending angle that is, the bendable area 31 of the flexible screen 30 is positioned at any bending angle, so that the electronic device can be positioned in the fully flattened state, the intermediate folded state and the fully folded state, so that the electronic device can be positioned between the two frames of the electronic device. It has a hovering function from 0 degrees to 180 degrees, with a wide range of hovering angles; and it can improve the user's folding feel.
  • the structure of the rotating shaft assembly 22d in the fifth embodiment of the present application is similar to the structure of the rotating shaft assembly 22 in the first embodiment.
  • the difference is that in the fourth embodiment, the positioning mechanism 26b
  • the positioning mechanism 26b includes a positioning member 261b and an elastic member 265.
  • the elastic member 265 is provided between the base 23 and the positioning member 261b for biasing the positioning member 261b.
  • the elastic member 265 has pre-elastic force.
  • the elastic member 265 is connected to the positioning member 261b and the base 23.
  • the elastic member 265 elastically pushes the positioning member 261b to be positioned at the first limiting section 2506a and the second limiting section 2506 of the limiting portion 2506.
  • the section 2506b or the middle limiting section 2506c makes the first rotating member 253 and the second rotating member 255 assume a fully flattened state, a fully folded state or an intermediate folded state.
  • the sliding direction of the elastic member 265 elastically pushes against the positioning member 261 b is perpendicular to the sliding direction of the linkage member 250 .
  • the sliding direction of the elastic member 265 against the positioning member 261b and the sliding direction of the linkage member 250 may not be perpendicular.
  • the front surface of the base 23 is provided with positioning mechanisms 26b on opposite sides of the limiting portion 2506.
  • the positioning members 261b of the two positioning mechanisms 26b can be respectively positioned at the first limiting positions on the opposite sides of the limiting portion 2506. section 2506a, the second limiting section 2506b or the middle limiting section 2506c.
  • the front of the base 23 is provided with support frames 266 on opposite sides of the limiting portion 2506, and the two positioning mechanisms 26b are respectively provided on the two support frames 266;
  • the support frame 266 includes a support plate 2662 connected to the front of the base 23 and a connection Regarding the support column 2664 of the support plate 2662, the axis line of the support column 2664 is perpendicular to the sliding direction of the linkage 250.
  • the positioning member 261b includes a U-shaped sliding part 2614d and a bump 2614b provided on the sliding part 2614d;
  • the elastic member 265 is a spring set on the support column 2664, and the opposite ends of the spring elastically resist the support plate 2662 and the sliding part respectively. 2614d, so that the bumps 2614b can be respectively positioned at the first limiting section 2506a, the second limiting section 2506b or the middle limiting section 2506c of the limiting part 2506.

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Abstract

一种转轴组件（22），其包括基座（23）、联动件（250）、第一转动件（253）及第二转动件（255），联动件（250）连接于基座（23）并能沿第一方向相对于基座（23）滑动，联动件（250）包括第一连接部（2501）和第二连接部（2502），第一转动件（253）转动地连接于基座（23），第一转动件（253）与第一连接部（2501）之间通过第一螺旋槽（2503）与第一传动部（2531）的配合转动地连接，第一螺旋槽（2503）设于第一转动件（253）和第一连接部（2501）中的一者，第一传动部（2531）设于第一转动件（253）和第一连接部（2501）中的另一者；第二转动件（255）转动地连接于基座（23），第二转动件（255）与第二连接部（2502）之间通过第二螺旋槽（2504）与第二传动部（2551）的配合转动地连接，第二螺旋槽（2504）设于第二转动件（255）和第二连接部（2502）中的一者，第二传动部（2551）设于第二转动件（255）和第二连接部（2502）中的另一者，第一螺旋槽（2503）与第二螺旋槽（2504）的旋向相反。

Description

转轴组件、折叠壳体及电子设备
本申请要求于2022年06月30日提交中国专利局、申请号为202210761273.2、申请名称为“转轴组件、折叠壳体及电子设备”的申请专利的优先权，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领域，尤其涉及一种支撑柔性屏的转轴组件、设置有所述转轴组件的折叠壳体，以及设置有所述折叠壳体的电子设备。
背景技术
随着显示器材的发展，现已出现了可弯折柔性显示屏，搭载了可弯折柔性显示屏的折叠屏设备因其独特的造型和多样化的功能也越来越受到人们的喜爱。目前可弯折柔性显示屏的折叠方案包括内折叠以及外折叠，相关技术中的折叠屏设备的可弯折柔性显示屏一般采用铰链机构进行支撑。然而，现有的铰链机构一般采用齿轮与齿轮的啮合实现联动，结构复杂，体积较大，占用折叠屏设备的内部空间较大。
发明内容
本申请提供一种转轴组件、设置有所述转轴组件的折叠壳体，以及设有所述折叠壳体的电子设备。
本申请提供的一种转轴组件，其包括基座、联动件、第一转动件及第二转动件，所述联动件连接于所述基座并能沿第一方向相对于所述基座滑动，所述联动件包括第一连接部和第二连接部，所述第一转动件转动地连接于所述基座，所述第一转动件与所述第一连接部之间通过第一螺旋槽与第一传动部的配合转动地连接，所述第一螺旋槽设于所述第一转动件和所述第一连接部中的一者，所述第一传动部设于所述第一转动件和所述第一连接部中的另一者；所述第二转动件转动地连接于所述基座，所述第二转动件与所述第二连接轴之间通过第二螺旋槽与第二传动部的配合转动地连接，所述第二螺旋槽设于所述第二转动件和所述第二连接部中的一者，所述第二传动部设于所述第二转动件和所述第二连接部中的另一者，所述第一螺旋槽与所述第二螺旋槽的旋向相反。
本申请还提供一种折叠壳体，其包括转轴组件及两个框体，所述转轴组件位于两个所述框体之间，所述转轴组件的第一转动件远离基座的一端连接于其中一个框体，所述转轴组件的第二转动件远离基座的一端连接于另一个框体。
本申请还提供一种电子设备，其包括柔性屏、两个框体及转轴组件，所述转轴组件位于两个所述框体之间，所述转轴组件的第一转动件远离基座的一端连接于其中一个框体，所述转轴组件的第二转动件远离所述基座的一端连接于另一个框体，所述柔性屏连接于两个所述框体及所述转轴组件。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对实施方式中所需要使用的附图作简单地介 绍，显而易见地，下面描述中的附图是本申请一些实施方式，对于本领域普通技术人员来讲，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是本申请第一实施例中的电子设备的立体结构示意图；
图2是图1中的电子设备的折叠壳体及柔性屏的立体结构分解示意图；
图3是图2中的折叠壳体的立体结构分解示意图；
图4是图3中的转轴组件的放大图；
图5是图4中的转轴组件的另一视角的立体结构示意图；
图6是图4中的转轴组件的立体结构分解示意图；
图7是图6中的转轴组件的另一视角的立体结构示意图；
图8是图6中的转轴组件进一步的立体结构分解示意图；
图9是图7中的转轴组件的另一视角的立体结构示意图；
图10是图8中的基座和联动组件的立体结构分解示意图；
图11是图9中的基座和联动组件的立体结构分解示意图；
图12是图10中的基位座和联动组件进一步的立体结构分解示意图；
图13是图11中的基座和联动组件进一步的立体结构分解示意图；
图14是图4中的转轴组件的局部立体剖视图；
图15是图14中的转轴组件的剖面视图；
图16是图4中的转轴组件的另一局部立体剖视图；
图17是图16中的转轴组件的剖面视图；
图18是图4中的转轴组件的另一局部立体剖视图；
图19是图18中的转轴组件的剖面视图；
图20是图4中的转轴组件的另一局部立体剖视图；
图21是图20中的转轴组件的剖面视图；
图22是图1中的电子设备折叠至某一角度的立体结构示意图；
图23是图21中的转轴组件的立体结构示意图；
图24是图23中的转轴组件的另一视角的立体结构示意图；
图25是图23中的转轴组件的局部立体剖视图；
图26是图25中的转轴组件的剖面视图；
图27是图23中的转轴组件的另一局部立体剖视图；
图28是图27中的转轴组件的剖面视图；
图29是图23中的转轴组件的另一局部立体剖视图；
图30是图29中的转轴组件的剖面视图；
图31是图23中的转轴组件的另一局部立体剖视图；
图32是图31中的转轴组件的剖面视图；
图33是图1中的电子设备处于完全折叠状态的立体结构示意图；
图34是图33中的转轴组件的立体结构示意图；
图35是图34中的转轴组件的另一视角的立体结构示意图；
图36是图34中的转轴组件的局部立体剖视图；
图37是图36中的转轴组件的剖面视图；
图38是图34中的转轴组件的另一局部立体剖视图；
图39是图38中的转轴组件的剖面视图；
图40是图34中的转轴组件的另一局部立体剖视图；
图41是图40中的转轴组件的剖面视图；
图42是图34中的转轴组件的另一局部立体剖视图；
图43是图42中的转轴组件的剖面视图；
图44是本申请第二实施例中的转轴组件的立体结构示意图；
图45是图44中的转轴组件的立体结构分解示意图；
图46是图45中的转轴组件的另一视角的立体结构示意图；
图47是图45中的转轴组件的进一步的立体结构分解示意图；
图48是图47中的转轴组件的另一视角的立体结构示意图；
图49是图44中的转轴组件处于折叠状态的立体结构示意图；
图50是图49中的转轴组件的立体结构分解示意图；
图51是图50中的转轴组件的另一视角的立体结构示意图；
图52是本申请第三实施例中的转轴组件的立体结构分解示意图；
图53是本申请第四实施例中的转轴装置的立体结构示意图；
图54是图53中的转轴组件的立体结构分解示意图；
图55是图53中的转轴组件折叠至某一角度的立体结构示意图；
图56是图53中的转轴组件处于完全折叠状态的立体结构示意图；
图57是本申请第五实施例中的转轴组件的立体结构示意图；
图58是图57中的转轴组件的立体结构分解示意图；
图59是图57中的转轴组件折叠至某一角度的立体结构示意图；
图60是图57中的转轴组件处于完全折叠状态的立体结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，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，本领域普通技术人员在没有付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。
此外，以下各实施例的说明是参考附加的图示，用以例示本申请可用以实施的特定实施例。本申请中所提到的方向用语，例如，“上”、“下”、“前”、“后”、“左”、“右”、“内”、“外”、“侧面”等，仅是参考附加图式的方向，因此，使用的方向用语是为了更好、更清楚地说明及理解本申请，而不是指示或暗指所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。用语“自然状态”是指，装置或元件在不受外部力的状态，外部力例如拉力或压力等。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“设置在……上”应做广义理解，例如，可以是固定连接，也可以是可拆卸地连接，或者一体地连接；可以是机械连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
一种转轴组件，所述转轴组件包括：
基座；
联动件，连接于所述基座并能沿第一方向相对于所述基座滑动，所述联动件包括第一连接部和第二连接部；
第一转动件，转动地连接于所述基座，所述第一转动件与所述第一连接部之间通过第一螺旋槽与第一传动部的配合转动地连接，所述第一螺旋槽设于所述第一转动件和所述第一连接部中的一者，所述第一传动部设于所述第一转动件和所述第一连接部中的另一者；以及
第二转动件，转动地连接于所述基座，所述第二转动件与所述第二连接轴之间通过第二螺旋槽与第二传动部的配合转动地连接，所述第二螺旋槽设于所述第二转动件和所述第二连接部中的一者，所述第二传动部设于所述第二转动件和所述第二连接部中的另一者，所述第一螺旋槽与所述第二螺旋槽的旋向相反。
当所述第一转动件相对于所述第一连接部转动时，所述第一传动部沿所述第一螺旋槽移动使得所述联动件相对于所述基座沿所述第一方向滑动，所述基座的滑动使所述第二传动部沿所述第二螺旋槽移动，进而使所述第二转动件相对于所述第二连接部转动。
所述第一转动件与所述第一连接部之间的第一转动轴心线平行于所述第一方向，所述第二转动件与所述二连接部之间的第二转动轴心线平行于所述第一方向，并且所述第一转动轴心线与第二转动轴心线彼此平行或重合。
所述第一连接部及所述第二连接部分别位于所述联动件的中心线的两侧，所述联动件的中心线平行于所述第一方向。
所述第一螺旋槽与所述第二螺旋槽关于所述中心线对称，或者所述第一转动件与所述第二转动件关于所述中心线对称。
所述第一连接部及所述第二连接部沿所述第一方向间隔地设置于所述联动件；所述第一螺旋槽与所述第二螺旋槽在所述第一方向上相互错位。
所述第一连接部的外周壁设有所述第一螺旋槽，所述第一传动部转动地容置于所述第一螺旋槽，所述第一传动部包括螺旋形的两个第一抵推面，两个所述第一抵推面分别抵顶所述第一螺旋槽相对的两个第一内侧面；所述第二连接部的外周壁设有所述第二螺旋槽，所述第二传动部转动地容置于所述第二螺旋槽，所述第二传动部包括螺旋形的两个第二抵推面，两个所述第二抵推面分别抵顶所述第二螺旋槽相对的两个第二内侧面。
所述第一螺旋槽设于所述第一转动件，所述第一连接部的外周壁设有第一传动块，所述第一传动部转动地套设于所述第一连接部，所述第一传动块滑动地容置于所述第一螺旋槽中；所述第二螺旋槽设于所述第二转动件，所述第二连接部的外周壁设有第二传动块，所述第二传动部转动地套设于所述第二连接部，所述第二传动块滑动地容置于所述第二螺旋槽中。
所述第一连接部的外周壁设有所述第一螺旋槽，所述第一传动部设有第一传动块，所述第一传动部转动地套设于所述第一连接部，所述第一传动块滑动地容置于所述第一螺旋槽中；所述第二连接部的外周壁设有所述第二螺旋槽，所述第二传动部转动地套设于所述第二连接部，所述第二传动块滑动地容置于所述第二螺旋槽中。
所述第一传动部包括第一圆弧板，所述第一圆弧板的轴心线与所述第一转动轴心线共线，所述第二传动部包括第二圆弧板，所述第二圆弧板的轴心线与所述第二转动轴心线共线；所述基座具有配合槽和设于所述配合槽相对两端的止挡部，所述第一传动部和/或所述第二传动部转动地容置于所述配合槽中，所述第一传动部和/或所述第二传动部相对的两端分别抵顶所述止挡部。
所述第一传动部与所述基座之间通过圆弧形的第一限位槽与第一限位部的配合转动地连接，以限制所述第一传动部在所述第一方向上的移动，所述第一限位槽的轴心线与所述第一转动轴心线共线，所述第一限位槽设于所述第一传动部和所述基座中的一者，所述第一限位部设于所述第一传动部和所述基座中的另一者；所述第二传动部与所述基座之间通过圆弧形的第二限位槽与第二限位部的配合转动地连接，以限制所述第二传动部在所述第一方向上的移动，所述第二限位槽的轴心线与所述第二转动轴心线共线，所述第二限位槽设于所述第二传动部和所述基座中的一者，所述第二限位部设于所述第二传动部和所述基座中的另一者。
所述联动件与所述基座之间通过导滑槽与导滑部的配合滑动地连接，所述导滑槽沿所述第一方向延伸，所述导滑槽设于所述基座和所述联动件中的一者，所述导滑部设于所述基座和所述联动件中的另一者。
所述转轴组件还包括定位机构，所述定位机构包括连接于所述基座的定位件；所述联动件还包括限位部，当所述联动件相对于所述基座滑动时，所述限位部与所述定位件之间的配合使所述联动件相对于所述基座限位。
所述限位部包括沿所述第一方向设置的第一限位段、第二限位段及中间限位段，所述中间限位段位于所述第一限位段与所述第二限位段之间；
其中，当所述定位件定位于所述第一限位段时，所述第一转动件和所述第二转动件呈完全展平状态；当所述定位件定位于所述第二限位段时，所述第一转动件和所述第二转动件呈完全折叠状态；当所述定位件定位于所述中间限位段时，所述第一转动件和所述第二转动件呈中间折叠状态。
所述定位件和所述限位部中的一者设置有齿条，所述齿条的齿牙沿所述第一方向排列，所述定位件和所述限位部中的另一者设置有卡齿以用于与所述齿条相配合；
其中，当所述卡齿定位于所述齿条的一端时，所述第一转动件和所述第二转动件呈完全展平状态；当所述卡齿定位于所述齿条的另一端时，所述第一转动件和所述第二转动件呈完全折叠状态；当所述卡齿与所述齿条的齿牙啮合时，所述第一转动件和所述第二转动件呈中间折叠状态。
所述定位件包括弹性的定位部；当所述联动件相对于所述基座滑动时，所述限位部能够抵推所述定位部，使所述定位部发生弹性变形从而实现所述限位部与所述定位件之间的配合。
所述定位机构还包括弹性构件，所述弹性构件设于所述基座与所述定位件之间，用于偏压所述定位件以抵顶所述联动件的限位部。
所述转轴组件还包括支撑机构，所述支撑机构包括位于所述基座相对两侧的两个侧部支撑件，每一 侧部支撑件与所述基座之间通过弧形调节槽与调节轴的配合活动地连接，所述调节轴的轴心线平行于所述第一转动轴心线；其中一个所述侧部支撑件转动地连接于所述第一转动件，另一个所述侧部支撑件转动地连接于所述第二转动件。
所述侧部支撑件包括侧部支撑板及设于所述侧部支撑板靠近所述基座一侧的调节臂，所述调节槽设于所述调节臂；所述调节轴设于所述基座，所述调节轴转动并滑动地容置于所述调节槽。
所述调节槽包括位于其相对两端的第一定位段及第二定位段，所述第一定位段相较于所述第二定位段更靠近所述侧部支撑板；当两个所述侧部支撑件呈完全展平状态时，所述调节轴定位于所述第一定位段；当两个所述侧部支撑件呈完全折叠状态时，所述调节轴定位于所述第二定位段。
所述支撑机构还包括位于两个所述侧部支撑件之间的中部支撑件、以及弹性件，所述弹性件连接于所述基座和所述中部支撑件以用于偏压所述中部支撑件向所述基座靠拢；当两个所述侧部支撑件呈完全展平状态时，所述调节臂远离所述侧部支撑板的端部抵顶所述中部支撑件的背面，所述侧部支撑件的正面与所述中部支撑件的正面共面。
所述中部支撑件包括中部支撑板及设于所述中部支撑板背面的导滑柱，所述基座设有导滑孔，所述导滑柱滑动地穿设于所述导滑孔中；所述支撑机构还包括卡接件，所述导滑柱远离所述中部支撑板的端部卡接于所述卡接件，所述弹性件被所述卡接件与所述基座夹持。
所述支撑机构还包括位于两个所述侧部支撑件之间的中部支撑件，所述联动件还设有避位通槽；当所述第一转动件和所述第二转动件呈完全展平状态时，所述第一传动部远离对应的侧部支撑件的端部和所述第二传动部远离对应的侧部支撑件的端部分别穿过所述避位通槽抵顶所述中部支撑件的背面。
一种折叠壳体，其包括转轴组件及两个框体，所述转轴组件包括基座、联动件、第一转动件及第二转动件，所述联动件连接于所述基座并能沿第一方向相对于所述基座滑动，所述联动件包括第一连接部和第二连接部；所述第一转动件转动地连接于所述基座，所述第一转动件与所述第一连接部之间通过第一螺旋槽与第一传动部的配合转动地连接，所述第一螺旋槽设于所述第一转动件和所述第一连接部中的一者，所述第一传动部设于所述第一转动件和所述第一连接部中的另一者；所述第二转动件转动地连接于所述基座，所述第二转动件与所述第二连接轴之间通过第二螺旋槽与第二传动部的配合转动地连接，所述第二螺旋槽设于所述第二转动件和所述第二连接部中的一者，所述第二传动部设于所述第二转动件和所述第二连接部中的另一者，所述第一螺旋槽与所述第二螺旋槽的旋向相反；所述转轴组件位于两个所述框体之间，所述转轴组件的第一转动件远离基座的一端连接于其中一个框体，所述转轴组件的第二转动件远离基座的一端连接于另一个框体。
一种电子设备，其包括柔性屏、两个框体及转轴组件，所述转轴组件包括基座、联动件、第一转动件及第二转动件，所述联动件连接于所述基座并能沿第一方向相对于所述基座滑动，所述联动件包括第一连接部和第二连接部；所述第一转动件转动地连接于所述基座，所述第一转动件与所述第一连接部之间通过第一螺旋槽与第一传动部的配合转动地连接，所述第一螺旋槽设于所述第一转动件和所述第一连接部中的一者，所述第一传动部设于所述第一转动件和所述第一连接部中的另一者；所述第二转动件转动地连接于所述基座，所述第二转动件与所述第二连接轴之间通过第二螺旋槽与第二传动部的配合转动地连接，所述第二螺旋槽设于所述第二转动件和所述第二连接部中的一者，所述第二传动部设于所述第二转动件和所述第二连接部中的另一者，所述第一螺旋槽与所述第二螺旋槽的旋向相反；所述转轴组件 位于两个所述框体之间，所述转轴组件的第一转动件远离基座的一端连接于其中一个框体，所述转轴组件的第二转动件远离基座的一端连接于另一个框体，所述柔性屏连接于两个所述框体及所述转轴组件。
请一并参阅图1至图3，本发明第一实施例中的电子设备100包括折叠壳体20及设置于折叠壳体20上的柔性屏30。柔性屏30可以是但不限于柔性显示屏、柔性触摸屏、柔性触摸显示屏等各种具备相应功能的柔性部件，或者为固定贴合有柔性支撑板的柔性部件，如贴合有柔性钢板的柔性显示屏、柔性触摸屏等。柔性屏30能随折叠壳体20折弯或展平。折叠壳体20包括两个框体21及连接于两个框体21之间的转轴组件22，转轴组件22相对的两侧分别连接于两个框体21，两个框体21通过转轴组件22实现折叠或展平。柔性屏30包括对应转轴组件22的可折弯区域31，以及连接于可折弯区域31相对的两侧的两个非折弯区域33。柔性屏30连接于两个框体21及转轴组件22，本实施例中，柔性屏30设置于两个框体21的正面及转轴组件22的正面，具体地，柔性屏30的两个非折弯区域33可分别固定在两个框体21的正面，可折弯区域31贴合于转轴组件22的正面。柔性屏30的可折弯区域31能随转轴组件22折弯或展平。
请一并参阅图4-图9，转轴组件22包括基座23、转动组件25及支撑机构27，转动组件25连接于基座23与支撑机构27之间；转动组件25包括联动件250、第一转动件253及第二转动件255，联动件250滑动地连接于基座23并能沿第一方向相对于基座23滑动，第一转动件253及第二转动件255分别设于联动件250与基座23之间，第一转动件253和第二转动件255分别转动地连接于基座23；联动件250包括第一连接部2501和第二连接部2502，第一转动件253与第一连接部2501之间通过第一螺旋槽与第一传动部的配合转动地连接，该第一螺旋槽设于第一转动件253和第一连接部2501中的一者，该第一传动部设于第一转动件253和第一连接部2501中的另一者。第二转动件255与第二连接部2502之间通过第二螺旋槽与第一传动部的配合转动地连接，该第二螺旋槽设于第二转动件255和第二连接部2502中的一者，该第二传动部设于第二转动件255和第二连接部2502中的另一者，该第一螺旋槽与该第二螺旋槽的旋向相反。当第一转动件253相对于第一连接部2501转动时，第一传动部沿第一螺旋槽移动使得联动件250相对于基座23滑动，同时，基座23的滑动使第二传动部沿第二螺旋槽移动，进而使得第二转动件255相对于第二连接部2502同步转动；当第二转动件255相对于第二连接部2502转动时，第二传动部沿第二螺旋槽移动使得联动件250相对于基座23滑动，同时，基座23的滑动使第一传动部沿第一螺旋槽移动，使得第一转动件253相对于第一连接部2501同步转动；从而实现第一转动件253和第二转动件255的同步折叠或同步展开。
如图8-图13所示，本实施例中，联动件250相对的两侧分别设有第一连接部2501与第二连接部2502，具体地，第一连接部2501及第二连接部2502是设于联动件250间隔平行的两个连接轴，即联动件250相对两侧分别设有连接轴。第一连接部2501的轴心线间隔平行于第二连接部2502的轴心线，第一连接部2501的外周壁设有第一螺旋槽2503，第二连接部2502的外周壁设有第二螺旋槽2504，第一转动件253一端设有第一传动部2531，第二转动件255一端设有第二传动部2551，第一传动部2531及第二传动部2551分别转动地容置于第一螺旋槽2503及第二螺旋槽2504中。当第一传动部2531相对于第一螺旋槽2503转动时，第一传动部2531抵推联动件250相对于基座23沿平行于第一连接部2501的轴心线方向滑动，同时，联动件250相对于基座23的滑动带动第二传动部2551沿第二螺旋槽2504相对于第二连接部2502转动，从而实现第一转动件253和第二转动件255相对于基座23同步折叠或同步 展开。需要说明的是：本实施例中，第一螺旋槽2503与第二螺旋槽2504除旋向相反外其他要素都相同，若第一螺旋槽2503为右旋时，则第二螺旋槽2504为左旋；若第一螺旋槽2503为左旋，则第二螺旋槽2504为右旋。
支撑机构27包括位于基座23相对两侧的两个侧部支撑件271及位于两个侧部支撑件271之间的中部支撑件273，其中一侧部支撑件271转动地连接于第一转动件253，另一侧部支撑件271转动地连接于第二转动件255；本实施例中，其中一侧部支撑件271的一侧与基座23活动地连接，该其中一侧部支撑件271远离基座23的另一侧与第一转动件253远离基座23的一端转动地连接；另一侧部支撑件271的一侧与基座23活动地连接，该另一侧部支撑件271远离基座23的另一侧与第二转动件255远离基座23的一端转动地连接。当转动组件25的第一转动件253及第二转动件255分别相对于第一连接部2501及第二连接部2502同步转动而相互靠拢时，第一转动件253与对应的侧部支撑件271之间相互转动，同时第一转动件253带动侧部支撑件271相对于基座23转动并滑动；第二转动件255与对应的侧部支撑件271之间相互转动，同时第二转动件255带动侧部支撑件271相对于基座23转动并滑动，以实现两个侧部支撑件271的同步相互折叠。两个框体21分别随第一转动件253及第二转动件255相对于基座23同步相互折叠，柔性屏30的可折弯区域31随所述转轴组件22的折叠而弯曲；当支撑机构27呈完全折叠状态时，两个侧部支撑件271和中部支撑件273围成水滴形空间以收容柔性屏30的可折弯区域31。当转动组件25的第一转动件253及第二转动件255分别相对于第一连接部2501及第二连接部2502同步转动而相互远离时，第一转动件253与对应的侧部支撑件271之间相互转动，同时第一转动件253带动该侧部支撑件271相对于基座23转动并滑动；第二转动件255与对应的侧部支撑件271之间相互转动，同时第二转动件255带动该侧部支撑件271相对于基座23转动并滑动，以实现两个侧部支撑件271的同步相互展开，两个框体21分别随第一转动件253及第二转动件255相对于基座23同步相互展开，柔性屏30的可折弯区域31随所述转轴组件22的展开而展平。当两个侧部支撑件271呈完全展平状态时，两个侧部支撑件271的正面和中部支撑件273的正面共面，以便于柔性屏30贴合于两个侧部支撑件271和中部支撑件273的正面。
本实施例中，正面指与柔性屏30的出光面朝向相同的面，背面指与柔性屏30的出光面朝向背离的面。电子设备100例如是，但不局限于手机、平板电脑、显示器、液晶面板、OLED面板、电视、智慧手表、VR头戴显示器、车载显示器等其它任何具有显示功能的产品和部件。本发明实施例的描述中的“连接”是包括直接连接和间接连接两种情况，比如A和B连接包括A和B直接连接或者通过第三个元件C或更多的其他元件连接。连接还包括一体化连接和非一体化连接两种情况，一体化连接是指A和B是一体形成并连接，非一体化连接是指A和B是非一体化形成并连接。
本发明转轴组件22的联动件250滑动地设于基座23上，第一转动件253通过第一传动部2531与第一螺旋槽2503的配合转动地连接于第一连接部2501，第二转动件255通过第二传动部2551与第二螺旋槽2504的配合转动地连接于第二连接轴2503；只需第一传动部2531相对于第一螺旋槽2503转动或第二传动部2551相对于第二螺旋槽2504转动，就能实现第一转动件253和第二转动件255相对于基座23的同步折叠或同步展开，从而实现两个侧部支撑件271的同步折叠或同步展开。相较于现有技术中需通过齿轮与齿轮的啮合才能实现联动，本申请转轴组件22省略了齿轮、齿轮安装架等元件，不仅减少了元件，简化了结构，降低了制造成本，且减小了转轴组件22的体积，从而减小转轴组件22占用折叠 壳体20的内部空间，有利于电子设备100中主板或电池等其他元件的布局，有利于小型化发展；另外，转轴组件22的转动组件25及基座23体积较小，从而占用转轴组件22的空间，使得转轴组件22具有大量的空间用于收容其他元件，如设于支撑机构27下方的导热件，该导热件相对的两端分别连接于两个框体21，电子设备100的主板、电池等元件工作时产生的热量经该导热件传导至两个框体21上，有利于电子设备100的散热。
如图2及图3所示，框体21包括正面211、背面、相对的两侧面214及两端面215，转轴组件22连接于两个框体21相邻的两个端面215之间，柔性屏30的可折弯区域31贴附于转轴组件22的正面，柔性屏30的非折弯区域33连接于框体21的正面211。每一框体21的正面211靠近转轴组件22的一端设有安装槽216，安装槽216穿通框体21的正面211，安装槽216相对的两端分别延伸至靠近框体21相对的两侧面214。转轴组件22相对的两侧分别容置于两个框体21的安装槽216中，且第一转动件253及第二转动件255分别与对应的框体21固定连接。框体21的背面设有若干收容空间(图中未示)，收容空间用于安装电路板、电池等电子器件。
如图8所示，第一转动件253与第一连接部2501之间的第一转动轴心线L1平行于第一方向，第二转动件255与第二连接部2502之间的第二转动轴心线L2平行于第一方向，并且第一转动轴心线L1与第二转动轴心线L2彼此平行或重合，联动件250沿第一方向相对于基座23滑动。进一步地，联动件250的中心线O位于第一转动轴心线L1与第二转动轴心线L2之间的中部，且中心线O平行于第一转动轴心线L1；即第一转动轴心线L1与第二转动轴心线L2关于中心线O对称。如图8所示，中心线O、第一转动轴心线L1及第二转动轴心线L2均沿立体坐标系中的Y轴方向延伸，第一转动轴心线L1和第二转动轴心线L2所在的平面平行于XY平面，联动件250沿平行于Y轴方向滑动。第一连接部2501及第二连接部2502分别位于联动件250的中心线O的两侧，联动件250的中心线O平行于第一方向；优选地，第一连接部2501与第二连接部2502关于中心线O对称设置。本实施例中，第一转动件253与第二转动件255关于中心线O对称设置。在其他实施例中，第一连接部2501与第二连接部2502关于中心线O对称设置，第一转动件253与第二转动件255也可以在沿平行于中心线O的方向上错位设置。
请一并参阅图10-图13，第一螺旋槽2503与第二螺旋槽2504关于联动件250的中心线O对称，即第一螺旋槽2503及第二螺旋槽2504沿平行于中心线O方向的宽度相同，第一螺旋槽2503及第二螺旋槽2504在同一YZ平面上的两个正投影重合。当第一传动部2531及第二传动部2551分别容置于第一螺旋槽2503及第二螺旋槽2504中时，第一传动部2531与第二传动部2551关于联动件250的中心线O对称。联动件250还包括连接部2505及限位部2506，第一连接部2501和第二连接部2502分别连接于连接部2505相对的两侧，限位部2506连接于连接部2505的其中一端。连接部2502可以是但不限于矩形板、条形板等；第一连接部2501和第二连接部2502均可以是但不限于半圆形柱或半圆弧柱等；限位部2506可以是但不限于矩形板、条形板等。本实施例中，连接部2505为矩形板，第一连接部2501和第二连接部2502均为半圆弧柱，两个半圆弧柱分别设置于该矩形块相对的两侧，两个半圆弧柱的轴心线分别与第一转动轴心线L1及第二转动轴心线L2重合，即两个半圆弧柱的轴心线相互间隔平行。限位部2506为条形板，限位部2506设置于连接部2505的一端，即限位部2506沿中心线O的方向延伸。第一连接部2501的外周壁设有第一螺旋槽2503，第二连接部2502的外周壁设有第二螺旋槽2504；本实施例中，第一螺旋槽2503沿其轴向延伸的长度等于第二螺旋槽2504沿其轴向延伸的长度相等；具体地， 第一螺旋槽2503设于第一连接部2501的中部，第二螺旋槽2504设于第二连接部2502的中部，第一螺旋槽2503包括圆弧形的第一外周面2503a及设于第一外周面2503a相对两侧的两个第一内侧面2503b，第一内侧面2503b为螺旋形面；第二螺旋槽2504包括圆弧形的第二外周面2504a及设于第二外周面2504a相对两侧的两个第二内侧面2504b，第二内侧面2504b为螺旋形面；第一内侧面2503b的旋向与第二内侧面2504b的旋向相反。本实施例中，第一内侧面2503a与第二内侧面2504a沿中心线O对称设置，同端的第一内侧面2503b与第二内侧面2504b关于中心线O对称设置。
在其他实施例中，第一连接部2501的第一螺旋槽2503与第二连接部2502的第二螺旋槽2504在第一方向上相互错位，即第一螺旋槽2503与第二螺旋槽2504在平行于中心线O的方向上相互错位，也就是第一螺旋槽2503及第二螺旋槽2504在同一YZ平面上的两个正投影错位，所述错位包括第一螺旋槽2503及第二螺旋槽2504在同一YZ平面上的两个正投影间隔或相交。当第一传动部2531及第二传动部2551分别容置于第一螺旋槽2503及第二螺旋槽2504中时，第一传动部2531与第二传动部2551在沿平行于中心线O的方向上相互错位。具体地，若第一螺旋槽2503及第二螺旋槽2504沿平行于中心线O方向的宽度相同时，第一螺旋槽2503在YZ平面上的正投影区域位于第二螺旋槽2504在该YZ平面上的正投影区域的一端，也就是第一外周面2503a在该YZ平面上的正投影区域位于第二外周面2504a在该YZ平面上的正投影区域的一端，两个第一内侧面2503b在该YZ平面上的正投影位于两个第二内侧面2504b在该YZ平面上的正投影的一端；或者第一螺旋槽2503在YZ平面上的正投影区域与第二螺旋槽2504在该YZ平面上的正投影区域相交，也就是第一外周面2503a在该YZ平面上的正投影区域与第二外周面2504a在该YZ平面上的正投影区域相交，两个第一内侧面2503b在该YZ平面上的正投影与两个第二内侧面2504b在该YZ平面上的正投影在沿中心线O的方向上相互错位。
在其他实施例中，第一螺旋槽2503及第二螺旋槽2504沿平行于中心线O方向的宽度可以不相同，第一传动部2531及第二传动部2551沿平行于中心线O方向的宽度也可以相同，需要满足第一传动部2531转动地容置于第一螺旋槽2503中，且第一传动部2531的两个第一抵推面2532分别滑动地抵推第一螺旋槽2503的两个第一内侧面2503b；第二传动部2551转动地容置于第二螺旋槽2504中，且第二传动部2551的两个第二抵推面2552分别滑动地抵推第二螺旋槽2504的两个第二内侧面2504b。具体地，第一螺旋槽2503在YZ平面上的正投影区域可以位于第二螺旋槽2504在该YZ平面上的正投影区域内，也就是第一外周面2503a在该YZ平面上的正投影区域位于第二外周面2504a在该YZ平面上的正投影区域中，两个第一内侧面2503b在该YZ平面上的正投影位于两个第二内侧面2504b在该YZ平面上的正投影之间；或者第二螺旋槽2504在YZ平面上的正投影区域可以位于第一螺旋槽2503在该YZ平面上的正投影区域内，也就是第二外周面2504a在该YZ平面上的正投影区域位于第一外周面2503a在该YZ平面上的正投影区域中，两个第二内侧面2504b在该YZ平面上的正投影位于两个第一内侧面2503b在该YZ平面上的正投影之间。
在其他实施例中，第一连接部2501及第二连接部2502也可以沿第一方向间隔地设置于联动件250，第一连接部2501的轴心线与第二连接部2502的轴心线重合，第一连接部2501上的第一螺旋槽2503与第二连接部2502上的第二螺旋槽2504除旋向相反，第一转动件253与第一连接部2501之间的第一转动轴心线L1与第二转动件255与第二连接部2502之间的第二转动轴心线L2重合；由于第一连接部2501及第二连接部2502在联动件250上沿第一方向间隔排列，因此，减小了联动件250的宽度，使得转轴 组件的宽度减小，从而减少了转轴组件占用折叠壳体20的内部空间，有利于电子设备100中主板或电池等其他元件的布局，有利于小型化发展。
当第一传动部2531容置于第一螺旋槽2503中时，两个第一抵推面2532分别抵顶第一螺旋槽2503相对的两个第一内侧面2503b；当第一传动部2531相对于基座23部2501转动时，第一抵推面2532滑动地抵推对应的第一内侧面2503b以使联动件250相对于基座23滑动。当第二传动部2551容置于第二螺旋槽2504中时，两个第二抵推面2552分别抵顶第二螺旋槽2504相对的两个第二内侧面2504b；当第二传动部2551相对于基座23转动时，第二抵推面2552滑动地抵推对应的第二内侧面2504b以使联动件250相对于基座23滑动。本实施例中，第一传动部2531是设于第一转动件253其中一端部的第一圆弧板，两个第一抵推面2532分别设于该第一圆弧板相对的两侧，该第一圆弧板的内周面与第一连接部2501的第一外周面2503a之间可转动地贴合；第二传动部2551是设于第二转动件255其中一端部的第二圆弧板，两个第二抵推面2552分别设于该第二圆弧板相对的两侧，该第二圆弧板的内周面与第二连接部2502的第二外周面2504a之间可转动地贴合。
第一螺旋槽2503及第二螺旋槽2504在沿平行于联动件250滑动方向上螺旋延伸的长度与联动件250相对于基座23滑动的长度成正比。也就是第一螺旋槽2503及第二螺旋槽2504在沿平行于中心线O方向上螺旋延伸的长度越长，联动件250相对于基座23滑动的长度越长；第一螺旋槽2503及第二螺旋槽2504在沿平行于中心线O方向上螺旋延伸的长度越短，联动件250相对于基座23滑动的长度越短。具体地，第一内侧面2503b与第二内侧面2504b的旋向相反，第一内侧面2503b与第一连接部2501的轴心线的夹角等于第二内侧面2504b与第二连接部2502的轴心线的夹角，第一内侧面2503b在沿第一连接部2501的轴心线方向上延伸的长度等于第二内侧面2504b在沿第二连接部2502的轴心线方向上延伸的长度；当第一内侧面2503b及第二内侧面2504b在沿平行于中心线O方向上延伸的长度越长，联动件250相对于基座23滑动的长度越长；第一内侧面2503b及第二内侧面2504b在沿平行于中心线O方向上延伸的长度越短，联动件250相对于基座23滑动的长度越短。
连接部2505的设有避位通槽2505a，避位通槽2505a用于避位第一传动部2531及第二传动部2551；当第一转动件253和第二转动件255相对于联动件250呈展平状态时，第一传动部2531远离对应的侧部支撑件271的端部和第二传动部2551远离对应的侧部支撑件271的端部分别穿过避位通槽2505a抵顶于中部支撑件273的背面，使得中部支撑件273稳定地支撑柔性屏30。
限位部2506包括沿第一方向设置的第一限位段2506a、第二限位段2506b及中间限位段2506c，第一限位段2506a相较于第二限位段2506b更远离第一转动件253，即第一限位段2506a相较于第二限位段2506b更远离连接部2505，中间限位段2506c位于第一限位段2506a与第二限位段2506b之间。第一螺旋槽2503及第二螺旋槽2504在沿平行于联动件250滑动方向上螺旋延伸的长度与中间限位段2506c沿平行于中心线O方向移动的长度成正比。也就是第一螺旋槽2503及第二螺旋槽2504在沿平行于中心线O方向上螺旋延伸的长度越长，中间限位段2506c沿平行于中心线O方向移动的长度越长；第一螺旋槽2503及第二螺旋槽2504在沿平行于中心线O方向上螺旋延伸的长度越短，中间限位段2506c沿平行于中心线O方向移动的长度越短。通过调节螺旋槽沿平行于中心线O方向上的长度，能增大联动件250沿中心线O方向移动的位移量，从而实现电子设备100更大角度的悬停效果。
如图10-图13所示，第一传动部2531与基座23之间通过圆弧形的第一限位槽与第一限位部的配合 转动地连接，以限制第一传动部2531在第一方向上的移动，即第一传动部2531不能在第一转动轴心线L1方向上的移动，该第一限位槽的轴心线与第一转动轴心线L1共线，该第一限位槽设于第一传动部2531和基座23中的一者，该第一限位部设于第一传动部2531和基座23中的另一者；第二传动部2552与基座23之间通过圆弧形的第二限位槽与第二限位部的配合转动地连接，以限制第二传动部2551在第一方向上的移动，即第二传动部2251不能在第二转动轴心线L2方向上的移动，该第二限位槽的轴心线与第二转动轴心线L2共线，该第二限位槽设于第二传动部2551和基座23中的一者，该第二限位部设于第二传动部2551和基座23中的另一者。本实施例中，基座23正面相对的两侧分别设有第一限位槽230及第二限位槽231，第一传动部2531的外周面上设有第一限位部2533，即第一限位部2533为设于第一传动部2531外周面的第一凸起，该第一凸起滑动地容置于第一限位槽230中，优选地，该第一凸起可以是但不限于圆柱、球体、矩状柱等；第二传动部2551的外周面上设有第二限位部2553，即第二限位部2553为设于第二传动部2551外周面上的第二凸起，该第二凸起滑动地容置于第二限位槽231中，优选地，该第二凸起可以是但不限于圆柱、球体、矩状柱等。
优选地，基座23正面对应联动件250的第一连接部2501及第二连接部2502设有间隔平行的两个配合槽232，第一传动部2531的外周面及第二传动部2551的外周面分别可转动地容置于两个配合槽232中。本实施例中，每一配合槽232为圆弧形槽，其中一圆弧形槽的轴心线与第一转动轴心线L1共线，另一圆弧形槽的轴心线与第二转动轴心线L2共线；第一传动部2531的外周面及第二传动部2551的外周面分别与两个配合槽232的内周面可转动地贴合。两个配合槽232的内周面分别设有第一限位槽230及第二限位槽231，第一限位槽230与第二限位槽231关于中心线O对称设置。在其他实施例中，第一限位槽230与第二限位槽231在沿中心线O的方向上相互错位。
在其他实施例中，第一传动部2531的外周面上设有第一限位槽，该第一限位槽的轴心线与第一转动轴心线L1共线；第二传动部2551的外周面上设有第二限位槽，该第二限位槽的轴心线与第二转动轴心线L2共线；基座23正面对应第一限位槽及第二限位槽分别设有第一限位部及第二限位部，该第一限位部及第二限位部分别可滑动地容置于第一限位槽及第二限位槽中，以限制第一转动件253及第二转动件255相对于基座23沿中心线O的方向移动。优选地，第一限位部及第二限位部是分别设于基座23的两个配合槽232内周面的第一凸起及第二凸起，该第一凸起和第二凸起可以是但不限于圆柱、球体、矩状柱等。
联动件250与基座23之间通过导滑槽与导滑部的配合滑动地连接，该导滑槽沿第一方向延伸，以使联动件250能沿第一方向移动，该导滑槽设于基座23和联动件250中的一者，该导滑部设于基座23和联动件250中的另一者。本实施例中，联动件250上设有导滑部2507，基座23上设有导滑槽234，导滑槽234沿平行于中心线O方向延伸；具体地，第一连接部2501的外周壁于第一螺旋槽2503相对的两端分别设有导滑部2507，第二连接部2502的外周壁于第二螺旋槽2504相对的两端分别设有导滑部2507，定位座32正面的一侧设有对应第一连接部2501的两个导滑部2507的两个导滑槽234，定位座32正面的另一侧设有对应第二连接部2502的两个导滑部2507的两个导滑槽234。具体地，导滑部2507为倒T形的导滑块，导滑槽234包括插入口234a及连通插入口234a的导滑段234b，导滑段234b沿平行于中心线O方向延伸，每一导滑块插入对应的插入口234a后能沿导滑段234b滑动。优选地，每一配合槽232的内周面相对的两端分别设有导滑槽234。
在其他实施例中，第一连接部2501的外周壁于第一螺旋槽2503相对的两端分别设有导滑槽，每一导滑槽沿第一连接部2501的轴向延伸；和/或第二连接部2502的外周壁于第二螺旋槽2504相对的两端分别设有导滑槽，每一导滑槽沿第二连接部2502的轴向延伸。基座23的正面对应第一连接部2501的导滑槽和/或第二连接部2502的导滑槽设有导滑部，每一导滑部能沿对应的导滑槽滑动。优选地，配合槽232的内周面对应导滑槽设有导滑块，该导滑块滑动地容置于对应的导滑槽中。
如图8-图13所示，其中一侧部支撑件271远离基座23的一侧与第一转动件253之间通过圆弧槽与圆弧轨的配合转动地连接，另一侧部支撑件271远离基座23的一侧与第二转动件255之间通过圆弧槽与圆弧轨的配合转动地连接，该圆弧槽的轴心线平行于第一转动轴心线L1。本实施例中，第一转动件253远离第一传动部2531的一端设有第一圆弧槽2535，第二转动件255远离第二传动部2551的一端设有第二圆弧槽2555，两个侧部支撑件271远离基座23的一侧分别设有圆弧轨2711，两个圆弧轨2711分别可转动地容置于第一圆弧槽2535及第二圆弧槽2555中。具体地，第一转动件253还包括第一连杆2536，第一传动部253连接于第一连杆2536的一端，第一圆弧槽2535设于第一连杆2536相对的另一端；优选地，第一连杆2536为矩形板，第一传动部2531连接于该矩形板的端部，该矩形板远离第一传动部2531的一端设有凸块，第一圆弧槽2535设于第一连杆2536的侧面，即第一圆弧槽2535设于该凸块的侧面。第二转动件255还包括第二连杆2556，第二传动部255连接于第二连杆2556的一端，第二圆弧槽2555设于第二连杆2556相对的另一端；优选地，第二连杆2556为矩形板，第二传动部2551连接于该矩形板的端部，该矩形板远离第二传动部2551的一端设有凸块，第二圆弧槽2555设于第二连杆2556的侧面，即第二圆弧槽2555设于该凸块的侧面。完全展平状态是指第一连杆2536的正面与第二连杆2556的正面共平面，即第一连杆2536的正面与第二连杆2556的正面之间的夹角为180度，两个侧部支撑件271的正面和中部支撑件273的正面共面；完全折叠状态是指第一连杆2536的正面与第二连杆2556的正面相互平行，即第一连杆2536的正面与第二连杆2556的正面之间的夹角为0度，两个侧部支撑件271的正面和中部支撑件273的正面围成水滴形空间；中间折叠状态是指第一连杆2536的正面与第二连杆2556的正面之间的夹角大于0度小于180度，两个侧部支撑件271的正面和中部支撑件273的正面围成除共面和水滴形空间外的任意折叠状态，也就是两个框体21之间的夹角在大于0度小于180度范围内的电子设备100的折叠状态。
在其他实施例中，第一转动件253远离第一传动部2531的一端设有第一圆弧轨，第二转动件255远离第二传动部2551的一端设有第二圆弧轨，两个侧部支撑件271远离基座23的一侧分别设有圆弧槽，第一圆弧轨及第二圆弧轨分别可转动地容置于两个圆弧槽中。具体地，第一连杆2536远离第一传动部2531的端部设有第一圆弧轨，第二连杆2556远离第二传动部2551的端部设有第二圆弧轨，两个侧部支撑件271远离基座23的一侧分别设有圆弧槽。
如图4-图9所示，每一侧部支撑件271与基座23之间通过弧形调节槽与调节轴的配合活动地连接，即该调节轴在对应的调节槽中滑动并转动；该调节轴的轴心线平行于第一转动轴心线L1。本实旋例中，每一侧部支撑件271靠近基座23的一侧设有调节槽2713，基座23相对的两侧分别设有调节轴235；当两个侧部支撑件271相对于基座23同步折叠或同步展平时，调节轴235在对应的调节槽2713中滑动并转动。具体地，基座23正面的一端设有避位槽2351，基座23正面于避位槽2351相对的两端分别设有一对凸耳2353，每一对凸耳2353相互间隔地位于避位槽2451相对的两侧；每一调节轴235位于对应的 一对凸耳2353之间，且调节轴235相对的两端分别转动地连接于对应的一对凸耳2353远离基座23正面的端部。侧部支撑件271包括侧部支撑板2710及设于侧部支撑板2710靠近基座23一侧的调节臂2714，调节臂2714自侧部支撑板2710向基座23的一侧延伸，圆弧轨2711设于侧部支撑板2710的背面远离调节臂2714的一侧，调节槽2713设于调节臂2714，调节轴235转动并滑动地容置于对应的调节臂2714上的调节槽2713中。
优选地，调节臂2714为弧形条，该弧形条的中部相较于相对的两端更靠近基座23，即调节臂2714的中部向基座23的一侧弯曲，调节槽2713从靠近调节臂2714的一端处沿该调节臂2714延伸至靠近相对的另一端，也就是调节槽2713的中部向靠近基座23的一侧弯曲。调节槽2713包括位于其相对两端的第一定位段2713a及第二定位段2713b，第一定位段2713a相较于第二定位段2713b更靠近侧部支撑板2710；当两个侧部支撑件271呈完全展平状态时，调节轴235定位于第一定位段2713a，调节臂2714远离侧部支撑板2710的端部抵顶于中部支撑件273的背面，以使两个侧部支撑件271的正面与中部支撑件273的正面共面，使得中部支撑件273和侧部支撑件271能稳定地支撑柔性屏，以防止柔性屏内陷而损坏。当两个侧部支撑件271呈完全折叠状态时，调节轴235定位于第二定位段2713b，调节臂2714远离侧部支撑板2710的端部远离中部支撑件273的背面，以使两个侧部支撑件271的正面与中部支撑件273的正面围成水滴形的收纳空间，以方便收纳柔性屏的可折弯区域。进一步地，调节臂2714远离侧部支撑板2710的端面设为圆弧面，以方便侧部支撑件271的折叠或展开。侧部支撑板2710靠近基座23的一侧设有避位口2716，避位口2716用于避位对应的第一转动件253及第二转动件255，在第一转动件253及第二转动件255相对于基座23转动时，第一转动件253及第二转动件255分别容置于对应的避位口2716中。优选地，避位口2716靠近对应的圆弧轨2711设置。
中部支撑件273包括中部支撑板2731，以及设于中部支撑板2731背面的导滑柱2733和止挡柱2735，导滑柱2733及止挡柱2735均沿垂直于第一转动轴心线L1的方向延伸。基座23的正面对应导滑柱2733及止挡柱2735设有导滑孔2361及通孔2363，导滑柱2733及止挡柱2735分别滑动地穿设于导滑孔2361及通孔2363中。本实施例中，中部支撑板2731背面的一端设有一个止挡柱2735及两个导滑柱2733，止挡柱2735位于两个导滑柱2733之间；基座23正面靠近避位槽2351处设有一个通孔2363及两个导滑孔2361，通孔2363位于两个导滑孔2361之间；止挡柱2735可滑动地穿设于通孔2363中，两个导滑柱2733分别可滑动地穿设于两个导滑孔2361中。
支撑机构27还包括弹性件275，弹性件275连接于基座23与中部支撑件273，弹性件275用于偏压中部支撑件273向基座23靠拢。本实施例中，弹性件275的数量为两个，两个弹性件275分别连接于两个导滑柱2733与基座23之间，两个弹性件275一并偏压中部支撑件273向基座23靠拢。弹性件275可以是但不限于弹簧、弹性橡胶或弹簧塑料等。支撑机构27还包括卡接件276，导滑柱2733远离中部支撑板2731的端部连接于卡接件276，弹性件275被卡接件276及基座23夹持，弹性件275弹性偏压中部支撑板2731向基座23靠拢。具体地，卡接件276为条形的卡接板，卡接件276相对的两端分别设有卡接孔2762，卡接件276的中部开成挡止部2764。两个导滑柱2733分别连接于卡接件276的两个卡接孔2762中，止挡柱2735远离中部支撑板2731的端面止挡于挡止部2764；基座23的背面设有卡接槽2365，卡接槽2365与卡接件276相适合，即卡接件276能容置于卡接槽2365中，优选地，卡接槽2365的形状与卡接件276的形状相同。卡接槽2365连通两个导滑孔2361及通孔2363，具体地，卡接 槽2365相对的两端分别连通两个导滑孔2361，卡接槽2365的中部与通孔2363连通。本实施例中，弹性件275为套设于导滑柱2733上的弹簧，该弹簧相对的两端分别抵顶卡接件276和基座23，弹性件275具有偏压中部支撑件273向基座23移动的预弹力。
如图6-图9所示，转轴组件22还包括背盖28，基座23的背部容置于背盖28。具体地，背盖28为条形框，背盖28具有收容槽280，基座23容置于收容槽280中并固定连接于背盖28。本实施例中，背盖28的收容槽280的内表面设有连接柱281，连接柱281沿轴向设有锁固孔283，锁固件穿过基座23的通孔锁固于对应的锁固孔283，以使基座23固定连接于背盖28。在其他实施例中，背盖28于收容槽280的内表面上设有胶层，基座23通过该胶层连接于基座23。在其他实施例中，背盖28也可以卡接于背盖28。
如图8-图11所示，转轴组件22还包括定位机构26，定位机构26包括连接于基座23的定位件261，当联动件250相对于基座23滑动时，限位部2506与定位件261之间的配合使联动件250相对于基座23定位。限位部2506远离连接部2505的端部与定位件261之间可滑动地抵顶，限位部2506与定位件261之间的摩擦阻力能使联动件250相对于基座23定位，从而实现第一转动件253及第二转动件255相对于基座23进行定位，以实现电子设备100的悬停。具体地，当定位件261定位于第一限位段2506a时，第一转动件253和第二转动件255呈完全展平状态，以使两个侧部支撑件271和中部支撑件273保持完全展平状态，使得电子设备100呈完全展平状态；当定位件261定位于第二限位段2506b时，第一转动件253和第二转动件255呈完全折叠状态，以使两个侧部支撑件271与中部支撑件273保持呈水滴状的完全折叠状态，使得电子设备100呈完全折叠状态；当定位件261定位于中间限位段2506c时，第一转动件253和第二转动件255呈中间折叠状态，以使两个侧部支撑件271能保持在除完全展平状态和完全折叠状态外的任意一折叠状态，使得电子设备100呈任意一悬停状态。
本实施例中，定位件261包括固定部2612及具有弹性的定位部2614，固定部2612连接于定位部2614。当联动件250相对于基座23滑动时，限位部2506能够抵推定位部2614，使定位部2614发生弹性变形而实现限位部2506与定位件261的配合。定位部2614可选择地定位于第一限位段2506a、中间限位段2506c或第二限位段2506b，从而使得转轴组件22呈完全展平状态、中间折叠状态或完全折叠状态。定位部2614包括连接于固定部2612的弹性条2614a及设于弹性条2614a上的凸块2614b，通过弹性条2614a的弹性变形能使凸块2614b可选择地定位于第一限位段2506a、第二限位段2506b或中间限位段2506c。具体地，固定部2612呈固定板，该固定板相对两侧分别设有定位部2614，两个定位部2614之间形成沿联动件250的滑动方向延伸的收容槽2616，限位部2506可滑动地穿设于收容槽2616中并抵顶凸块2614b；弹性条2614a概呈L形条，弹性条2614a的其中一端连接于固定部2612，弹性条2614a的另一端平行于联动件250的滑动方向，两个弹性条2614a围成收容槽2616，凸块2614b设于弹性条2614a面朝收容槽2616的侧面。限位部2506远离连接部2505的端部相对两侧分别设有第一限位段2506a、第二限位段2506b及中间限位段2506c，限位部2506同一侧的第一限位段2506a相较于第二限位段2506b更远离连接部2505，中间限位段2506c位于第一限位段2506a与第二限位段2506b之间。当定位件261的两个凸块2614b分别定位于限位部2506的两个第一限位段2506a时，第一转动件253和第二转动件255呈完全展平状态；当定位件261的两个凸块2614b分别定位于限位部2506的第二限位段2506b时，第一转动件253和第二转动件255呈完全折叠状态；当定位件261的两个凸块2614b分别 定位于限位部2506的两个中间限位段2506c时，第一转动件253和第二转动件255呈中间折叠状态。
进一步地，固定部2612与基座23之间可以通过但不限于螺接、卡接、胶接等方式固定连接。本实施例中，定位机构26包括锁固件263，定位件261通过锁固件263固定连接于基座23；具体地，固定部2612上设有通孔2613，基座23的一端设有安装部237，安装部237上开设安装孔2372，锁固件263穿过通孔2613连接于安装孔2372，以使定位件261固定连接于基座23。
在其他实施例中，定位件261可以采用弹性片取代，该弹性片的一端连接于基座23，限位部2506随联动件250移动而滑动地抵顶该弹性片，使得该弹性片可选择地定位于限位部2506的第一限位段2506a、中间限位段2506c或第二限位段2506b，以使第一转动件253和第二转动件255呈完全展平状态、中间折叠状态或完全折叠状态。
请一并参阅图4-图21，组装转轴组件22时，将第一传动部2531及第二传动部2551分别容置于第一螺旋槽2503及第二螺旋槽2504中，使得第一传动部2531的内周面可滑动地贴合于第一连接部2501的第一外周面2503a，且第一传动部2531的两个第一抵推面2532分别滑动地贴合于第一连接部2501的两个第一内侧面2503b，第二传动部2551的内周面可滑动地贴合于第二连接部2502的第二外周面2504a，且第二传动部2551的两个第二抵推面2552分别滑动地贴合于第二连接部2502的两个第二内侧面2504b。将联动件250、第一转动件253及第二转动件255一并置于基座23的正面，使联动件250的导滑部2507分别插入对应的插入口234a，并滑入对应的导滑段234b，第一传动部2531及第二传动部2551分别被基座23和联动件250夹持，具体地，第一传动部2531及第二传动部2551分别容置于基座23的两个配合槽232中，第一传动部2531的第一限位部2533可滑动地插设于第一限位槽230，第二传动部2551的第二限位部2553可滑动地插设于第二限位槽231。将定位件261安装至基座23，具体地，将固定部2612放置于安装部237上，使限位部2506容置于定位件261的两个定位部2614之间的收容槽2616中，且定位件261的通孔2613正对安装孔2372，锁固件263穿过通孔2613锁固于安装孔2372中。将两个侧部支撑件271分别置于基座23正面相对的两侧，其中一侧部支撑件271的调节臂2714活动地套设于对应的调节轴235，即调节轴235滑动并转动地穿设于调节臂2714的调节槽2713中，且该侧部支撑件271的圆弧轨2711可转动地插设于第一转动件253的第一圆弧槽2535中，第一连杆2536正对该其中一侧部支撑件271的避位口2716；另一侧部支撑件271的调节臂2714活动地套设于对应的调节轴235，即调节轴235滑动并转动地穿设于调节臂2714的调节槽2713，且该侧部支撑件271的圆弧轨2711可转动地插设于第二转动件255的第二圆弧槽2555，第二连杆2556正对该另一侧部支撑件271的避位口2716。将中部支撑件273放置于基座23正面并位于两个侧部支撑件271之间，使中部支撑件273的止挡柱2735及导滑柱2733分别穿设于基座23的通孔2363及导滑孔2361中，使止挡柱2735及导滑柱2733分别延伸至卡接槽2365中；将两个弹性件275自卡接槽2365分别套设于两个导滑柱2733上，将卡接件276容置于卡接槽2365中，使两个导滑柱2733远离中部支撑板2731的端部分别卡接于该卡接件276的两个卡接孔2762中，弹性件275被卡接件276和基座23夹持，弹性件275具有偏压中部支撑件273向基座23移动的弹力。将基座23容置于背盖28的收容槽280中，并使基座23与背盖28固定连接。
当两个侧部支撑件271呈完全展平状态时，两个调节轴235分别定位于两个侧部支撑件271的第一定位段2713a，两个调节臂2714的端部分别抵顶中部支撑板2731的背面，弹性件275被挤压而弹性变 形，且第一传动部2531远离第一连杆2536的端部穿过联动件250的避位通槽2505a后抵顶中部支撑板2731的背面，及第二传动部2551远离第二连杆2556的端部穿过联动件250的避位通槽2505a后抵顶中部支撑板2731的背面，中部支撑板2731的背面与基座23的正面之间的间距最大，中部支撑件273的正面与两个侧部支撑件271的正面共面。两个定位部2614的凸块2614b分别定位于限位部2506的两个第一限位段2506a，以限制联动件250相对于基座23滑动，使转轴组件22保持稳定的完全展平状态。当两个侧部支撑件271呈完全折叠状态时，两个调节轴235分别定位于两个侧部支撑件271的第二定位段2713b，两个调节臂2714的端部分别远离中部支撑板2731的背面，弹性件275弹性复位带动中部支撑件273向基座23移动，且第一传动部2531远离第一连杆2536的端部及第二传动部2551远离第二连杆2556的端部分别容置于基座23的两个配合槽232中，中部支撑板2731的背面与基座23的正面之间的间距最小，中部支撑件273的正面与两个侧部支撑件271的正面围成水滴形空间；两个定位部2614的凸块2614b分别定位于限位部2506的两个第二限位段2506b，以限制联动件250相对于基座23滑动，使转轴组件22保持稳定的完全折叠状态。
如图14-图21、图23-图32及图34-图43所示，将转轴组件22由展平状态进行弯折时，将第一转动件253绕第一连接部2501相对于基座23向第二转动件255转动，第一转动件253的第一限位部2533在第一限位槽230中滑动，以使第一传动部2531绕第一转动轴心线L1转动且无法沿第一转动轴心线L1方向移动，第一传动部2531在第一螺旋槽2503中转动时，两个第一抵推面2532分别滑动地抵推第一连接部2501的两个第一内侧面2503b，使联动件250沿中心线O向靠近定位件261滑动。联动件250的导滑部2507在对应的导滑槽234中滑动，限位部2506滑动地抵推两个凸块2614b使得定位部2614弹性变形，凸块2614b脱离与对应的第一限位段2506a后相对于对应的中间限位段2506c滑动，直至两个凸块2614b分别定位于两个第二限位段2506b。同时，联动件250的滑动能带动第二螺旋槽2504中的第二传动部2551相对于第二连接部2502转动，第二传动部2551上的第二限位部2553沿基座23的第二限位槽231滑动，使得第二传动部2551仅能围绕第二转动轴心线L2转动而无法沿第二转动轴心线L2的方向滑动，因此，使得第一转动件253的第一连杆2536随第一传动部2531相对于第一连接部2501转动及第二转动件255的第二连杆2556随第二传动部2551相对于第二连接部2502转动而相互靠拢。同时，第一转动件253相对于第一连接部2501转动及第二转动件255相对于第二连接部2502转动的过程中，第一转动件253与对应的侧部支撑件271通过圆弧轨2711与第一圆弧槽2535的配合相互转动，第二转动件255与对应的侧部支撑件271通过圆弧轨2711与第二圆弧槽2555的配合相互转动，使得两个侧部支撑件271的调节臂2714分别与两个调节轴235之间转动并滑动地连接。即每一调节轴235在对应的调节槽2713中转动并滑动，使基座23相对两侧的侧部支撑件271相互靠拢，直至调节轴235限位于第二定位段2713b，两个凸块2614b分别定位于两个第二限位段2506b，调节臂2714逐渐解除对中部支撑板2731的抵顶，弹性件275偏压中部支撑件273向基座23移动，直至两个侧部支撑件271的正面与中部支撑件273的正面围成横截面成水滴状。
在其他的弯折方式中，可以将第二转动件255绕第二连接部2502相对于基座23向第一转动件253转动，第二转动件255的第二限位部2553在第二限位槽231中滑动，以使第二传动部2551围绕第二转动轴心线L2转动且无法沿第二转动轴心线L2方向移动，第二传动部2551在第二螺旋槽2504中转动时，两个第二抵推面2552分别滑动地抵推第二连接部2502的两个第二内侧面2504b，使联动件250沿中心 线O滑动。联动件250的导滑部2507在对应的导滑槽234中滑动，限位部2506滑动地抵推两个凸块2614b使得定位部2614弹性变形，凸块2614b脱离与对应的第一限位段2506a后相对于对应的中间限位段2506c滑动，直至两个凸块2614b分别定位于两个第二限位段2506b。同时，联动件250的滑动能带动第一螺旋槽2503中的第一传动部2531相对于第一连接部2501转动，第一传动部2531上的第一限位部2533沿基座23的第一限位槽230滑动，使得第一传动部2531仅能围绕第一转动轴心线L1转动而无法沿第一转动轴心线L1的方向滑动，因此使得第二转动件255的第二连杆2556随第二传动部2551相对于第二连接部2502转动及第一转动件253的第一连杆2536随第一传动部2531相对于第一连接部2501转动而相互靠拢。同时，在第一转动件253相对于第一连接部2501转动及第二转动件255相地于第二连接部2502的过程中，第一转动件253与对应的侧部支撑件271通过圆弧轨2711与第一圆弧槽2535的配合相互转动，第二转动件255与对应的侧部支撑件271通过圆弧轨2711与第二圆弧槽2555的配合相互转动，使得两个侧部支撑件271的调节臂2714分别与两个调节轴235之间转动并滑动地连接。即每一调节轴235在对应的调节槽2713中转动并滑动，使基座23相对两侧的侧部支撑件271相互靠拢，直至调节轴235限位于第二定位段2713b，两个凸块2614b分别定位于两个第二限位段2506b，调节臂2714逐渐解除对中部支撑板2731的抵顶，弹性件275偏压中部支撑件273向基座23移动，直至两个侧部支撑件271的正面与中部支撑件273的正面围成横截面成水滴状。
在其他的弯折方式中，可以同时将第一转动件253及第二转动件255分别绕第一连接部2501及第二连接部2502相对于基座23朝相向方向一同转动，两个侧部支撑件271分别相对于第一转动件253及第二转动件255转动，且两个侧部支撑件271分别相对于基座23活动，即两个调节轴235分别在两个调节槽2713中转动并滑动，使得两个侧部支撑件271相互靠拢，直至每一调节轴235限位于对应的第二定位段2713b；同时，第一传动部2531的第一抵推面2532及第二传动部2551的第二抵推面2552同步分别抵推第一内侧面2503b及第二内侧面2504b，以使联动件250沿中心线O的方向相对于基座23滑动，直至两个凸块2614b分别定位于两个第二限位段2506b；调节臂2714逐渐解除对中部支撑板2731的抵顶，弹性件275偏压中部支撑件273向基座23移动，直至两个侧部支撑件271的正面与中部支撑件273的正面围成横截面成水滴状。
在两个侧部支撑件271相对于基座23折弯过程中，两个侧部支撑件271上的圆弧轨2711同时分别在第一转动件253的第一圆弧槽2535及第二转动件255的第二圆弧槽2555中转动，同时，两个调节轴235同时分别在两个调节槽2713中转动并滑动，具体地，调节轴235从第一定位段2713a位移至第二定位段2713b，两个调节臂2714逐渐解除对中部支撑板2731的抵顶，弹性件275弹性复位而带动中部支撑板2730逐渐向基座23移动；同时，第一传动部2531及第二传动部2551分别在第一螺旋槽2503及第二螺旋槽2504中同步转动，第一抵推面2532及第二抵推面2552分别滑动地抵推第一内侧面2503b及第二内侧面2504b，使得联动件250沿中心线O的方向逐渐向定位件261移动，限位部2506滑动地抵推凸块2614b以使弹性条2614a发生弹性变形，凸块2614b脱离第一限位段2506a后相对于中间限位段2506c滑动，直至凸块2614b定位于第二限位段2506b。通过第一转动件253围绕第一连接部2501转动以带动联动件250相对于基座23滑动，联动件250同步带动第二转动件255围绕第二连接部2502转动，实现第一转动件253和第二转动件255的同步折叠；或者通过第二转动件255围绕第二连接部2502转动以带动联动件250相对于基座23滑动，联动件250同步带动第一转动件253围绕第一连接部2501 转动，实现第一转动件253和第二转动件255的同步折叠。因此，转轴组件22的联动机构无需采用齿轮与齿轮的啮合实现，使得转轴组件22的结构简易，制造成本低，且转轴组件22的整体体积减小，有利于产品小型化发展；其次，在凸块2614b相对于中间限位段2506c滑动时，定位件261与限位部2506之间的摩擦阻力使联动件250相对于基座23定位，使得第一转动件253相对于基座23定位在0度至90度之间的任意角度及第二转动件255相对于基座23定位在0度至90度之间的任意角度；同时，使得侧部支撑件271相对于基座23定位在0度至120度之间的任意角度，即侧部支撑件271的正面与基座23的正面之间的夹角范围在0度至120度之间，使得电子设备100能实现更大角度的悬停。
将转轴组件22由完全折叠状态进行展平时，各构件的运动过程与将转轴组件22由展平状态进行弯折时相逆，文中不再赘述。
请一并参阅图1-图4，将安装完成的转轴组件22置于两个框体21之间，并使转轴组件22相对的两侧分别与两个框体21固定连接。具体地，将背盖28相对两侧的侧部支撑件271分别容置于两个框体21的安装槽216中，并将第一转动件253远离基座23的一端连接于其中一框体21，第二转动件255远离基座23的一端连接于另一框体21。此时，两个框体21的正面211、两个侧部支撑件271的正面及中部支撑件273的正面2311共面。柔性屏30的背面连接于两个框体21的正面211及转轴组件22的正面；具体地，可折弯区域31贴合于转轴组件22的两个侧部支撑件271的正面和中部支撑件273的正面，两个非折弯区域33分别贴合于两个框体21的正面211。由于转轴组件22仅通过基座23、联动件250及第一转动件253和第二转动件255的配合就能实现同步展平或同步折叠，因此，转轴组件22不仅元件较少，结构简单，制造成本低，且占用背盖28的内部空间较小，有利于背盖28留有足够的空间用于放置散热材料、柔性排线或其他元件等。其次，转轴组件22的整体体积较小，因此，降低了转轴组件22占用壳体20的内部空间，有利于主板或电池等其他元件的布局，有利于电子设备100的小型化及薄型化。
请一并参阅图22-图43，弯折电子设备100时，对电子设备100的两个框体21中的至少其中一个施加折弯的力，使连接于两个框体21的第一转动件253及第二转动件255相对于基座23转动而朝相互靠拢的方向转动，其中一侧部支撑件271远离基座23的一侧相对于第一转动件253转动，且该其中一侧部支撑件271与基座23之间通过调节轴235与调节槽2713的配合转动并滑动地连接，另一侧部支撑件271远离基座23的一侧相对于第二转动件255转动，且该另一侧部支撑件271与基座23之间通过调节轴235与调节槽2713的配合转动并滑动地连接，以实现转轴组件22的同步折叠，柔性屏30的可折弯区域31随转轴组件22弯折。具体地，若对连接于第一转动件253的框体21施加折弯的力，该框体21带动第一转动件253围绕第一连接部2501相对于基座23向靠近柔性屏30的一侧转动，第一传动部2531在第一螺旋槽2503中转动而抵推联动件250沿中心线O向靠近定位件261滑动，同时，联动件250的滑动带动第二螺旋槽2504中的第二传动部2551围绕第二连接部2502相对于基座23同步转动，使得第二转动件255向靠近柔性屏30的一侧转动，从而实现第一转动件253和第二转动件255相对于基座23同步转动而相互靠拢。同时，第一转动件253与侧部支撑件271之间通过圆弧轨2711与第一圆弧槽2535的配合转动，基座23上的调节轴235在对应的调节臂2714的调节槽2713中滑动并转动，即调节轴235从调节槽2713的第一定位段2713a滑动并转动地移至第二定位段2713b；第二转动件255与侧部支撑件271之间通过圆弧轨2711与第二圆弧槽2555的配合转动，基座23上的调节轴235在对应的调 节臂2714的调节槽2713中滑动并转动，即调节轴235从调节槽2713的第一定位段2713a滑动并转动地移至第二定位段2713b，使基座23相对两侧的侧部支撑件271相互靠拢，直至调节轴235限位于第二定位段2713b，且定位件261定位于第二限位段2506b，中部支撑件273向远离柔性屏30的一侧移动，两个侧部支撑件271的正面与中部支撑件273的正面围成横截面成水滴状；柔性屏30的可折弯区域31随转轴组件22弯折，直至可折弯区域31弯折成水滴状，从而实现电子设备100的折叠。
在弯折电子设备100的过程中，中部支撑件273向基座23靠拢，使得中部支撑件273的正面与两个侧部支撑件271的正面围成的水滴形空间较大，便于柔性屏30的可折弯区域31弯折围成水滴形，减少弯折后的可折弯区域31的占空比，从而能减小电子设备100的整体厚度。
在展平电子设备100时，对电子设备100的两个框体21中的至少其中一个施加展开的力，使连接于两个框体21的第一转动件253及第二转动件255相对于基座23转动而朝相互远离的方向转动，其中一侧部支撑件271远离基座23的一侧相对于第一转动件253转动，且该其中一侧部支撑件271与基座23之间通过调节轴235与调节槽2713的配合转动并滑动地连接，另一侧部支撑件271远离基座23的一侧相对于第二转动件255转动，且该另一侧部支撑件271与基座23之间通过调节轴235与调节槽2713的配合转动并滑动地连接，以实现转轴组件22的展开，柔性屏30的可折弯区域31随转轴组件22展平。具体地，若对连接于第一转动件253的框体21施加展开的力，该框体21带动第一转动件253围绕第一连接部2501相对于基座23向远离柔性屏30的一侧转动，第一传动部2531在第一螺旋槽2503中的转动而抵推联动件250沿中心线O向远离定位件261滑动，同时，联动件250的滑动以带动第二螺旋槽2504中的第二传动部2551围绕第二连接部2502相对于基座23同步转动，使得第二转动件255向远离柔性屏30的一侧同步转动，从而实现第一转动件253和第二转动件255相对于基座23同步转动而相互远离；同时，第一转动件253与侧部支撑件271之间通过圆弧轨2711与第一圆弧槽2535的配合转动，基座23上的调节轴235在对应的调节臂2714的调节槽2713中滑动并转动，即调节轴235从调节槽2713的第二定位段2713b滑动并转动地移至第一定位段2713a；第二转动件255与侧部支撑件271之间通过圆弧轨2711与第二圆弧槽2555的配合转动，基座23上的调节轴235在对应的调节臂2714的调节槽2713中滑动并转动，即调节轴235从调节槽2713的第二定位段2713b滑动并转动地移至第一定位段2713a，使基座23相对两侧的侧部支撑件271相互远离，直至调节轴235限位于第一定位段2713a，且定位件261定位于第一限位段2506a，中部支撑件273向靠近柔性屏30的一侧移动，以使基座23相对两侧的侧部支撑件271相互展开，直至两个侧部支撑件271与基座23呈展平状，柔性屏30的可折弯区域31随转轴组件22展开，直至柔性屏30完全展平，从而实现电子设备100的展平。
在弯折电子设备100的过程中，中部支撑件273远离基座23，使得中部支撑件273对柔性屏30的可折弯区域31进行支撑，使侧部支撑板271的正面与中部支撑件273的正面保持共面，能实现侧部支撑板对柔性屏30进行稳定的支撑，防止柔性屏30下陷而损坏。
本发明的电子设备100的转轴组件22通过转动组件25实现同步折弯或同步展开，操作方便；由于转动组件25仅包括滑动地设于基座23的联动件250，以及分别转动地连接于联动件250的第一连接部2501和第二连接部2502上的第一转动件253和第二转动件255，因此，转轴组件22的元件较少，结构简单，制造成本低，且降低转轴组件22占用壳体20的内部空间，有利于主板或电池等其他元件的布局。其次，在电子设备100处于完全折叠状态时，调节轴235限位于第二定位段2713b且定位件261定位于 限位部2506的第二定位段2713b，因此，电子设备100跌落时各元件不易移位，避免损坏柔性屏30；在电子设备100处于完全展平状态时，调节轴235限位于第一定位段2713a且定位件261定位于限位部2506的第一限位段2506a，因此，电子设备100跌落时各元件不易移位，避免损坏柔性屏30。转轴组件22通过限位部2506与定位件261的配合实现联动件250相对于基座23限位，具体地，凸块2614b与中间限位段2506c之间的摩擦阻力使得柔性屏30的可折弯区域31定位于任意一弯曲角度，从而使两个框体21能在展开状态、折叠状态及中间折叠状态自由调整，即电子设备100可以定位在展开状态、折叠状态及任意一中间折叠状态，使得电子设备100的两个框体21之间具有0度至180度的悬停功能，悬停角度范围大。
请一并参阅图44-图51，本申请第二实施例中转轴组件22a的结构与第一实施例中转轴组件22的结构相似，不同之处在于：在第二实施例中，第一转动件253a的第一传动部2531上设有第一螺旋槽2503，第一连接部2501的外周壁设有第一传动块2508，第一传动部2531转动地套设于第一连接部2501，第一传动块2508可滑动地容置于第一螺旋槽2503；第二转动件255a的第二传动部2551上设有第二螺旋槽2504，第二连接部2502的外周壁设有第二传动块2509，第二传动部2551转动地套设于第二连接部2502，第二传动块2509可滑动地容置于第二螺旋槽2504；第一螺旋槽2503与第二螺旋槽2504的旋向相反。
当第一传动部2531相对于第一连接部2501转动或第二传动部2551相对于第二连接部2502转动时，第一传动部2531仅围绕第一连接部2501转动而在第一连接部2501的轴向限位，即第一传动部2531无法在第一连接部2501的轴向位移，且第二传动部2551仅围绕第二连接部2502转动而在第二连接部2502的轴向限位，即第二传动部2551无法在第二连接部2502的轴向位移；在第一传动部2531绕第一连接部2501转动时，第一传动块2508沿第一螺旋槽2503滑动以抵推联动件250a沿平行于第一连接部2501的轴向移动，联动件250a的移动带动第二传动块2509沿第二螺旋槽2504滑动，使得第二传动部2551围绕第二连接部2502转动，从而实现第一传动部2531和第二传动部2551的同步转动。
联动件250a与基座23a之间通过导滑部2507与导滑槽234的配合滑动连接，第一螺旋槽2503及第二螺旋槽2504在沿平行于联动件250a滑动方向上螺旋延伸的长度与联动件250a相对于基座23a滑动的长度成正比。也就是第一螺旋槽2503及第二螺旋槽2504在沿平行于中心线O方向上螺旋延伸的长度越长，联动件250a相对于基座23a滑动的长度越长；第一螺旋槽2503及第二螺旋槽2504在沿平行于中心线O方向上螺旋延伸的长度越短，联动件250a相对于基座23a滑动的长度越短。
具体地，第一连接部2501和第二连接部2502均可以是但限于圆柱体、半圆柱体或半圆弧柱等，本实施例中，第一连接部2501和第二连接部2502均为半圆柱体，第一连接部2501与第二连接部2502关于中心线O对称设置；第一传动部2531与第一连接部2501之间的第一转动轴心线L1与第一连接部2501的轴心线共线，第二传动部2551与第二连接部2502之间的第二转动轴心线L2与第一连接部2501的轴心线共线。联动件250a相对两侧的第一传动部2531与第二传动部2551可以关于中心线O对称设置，第一螺旋槽2503与第二螺旋槽2504可以关于中心线O对称设置，第一传动块2508与第二传动块2509可以关于中心线O对称设置。联动件250a相对两侧的第一传动部2531与第二传动部2551也可以沿中心线O相互错位，第一螺旋槽2503与第二螺旋槽2504也可以沿中心线O相互错位，第一传动块2508与第二传动块2509也可以沿中心线O相互错位。本实施例中，第一传动部2531与第二传动部2551关 于中心线O对称，第一螺旋槽2503与第二螺旋槽2504关于中心线O对称，第一传动块2508与第二传动块2509关于中心线O对称；具体地，第一传动部2531在YZ平面上的正投影区域与第二传动部2551在该YZ平面上的正投影区域重合，第一螺旋槽2503在该YZ平面上的正投影区域与第二螺旋槽2504在该YZ平面上的正投影区域重合，第一传动块2508在该YZ平面上的正投影区域与第二传动块2509在该YZ平面上的正投影区域重合，第一传动块2508及第二传动块2509分别滑动地容置于第一螺旋槽2503及第二螺旋槽2504中。
第一传动块2508可以是但不限于矩形块、档形块、球体等，第一传动块2508相对的两表面分别滑动地抵顶第一螺旋槽2503相对的两内侧面；第二传动块2509可以是但不限于矩形块、档形块、球体等，第二传动块2509相对的两表面分别滑动地抵顶第二螺旋槽2504相对的两内侧面。本实施例中，第一传动块2508及第二传动块2509均为矩形块，第一传动块2508相对的两个侧面分别滑动地抵顶第一螺旋槽2503相对的两个内侧面，该两个侧面在第一转动轴心线L1方向上间隔设置；第二传动块2509相对的两个侧面分别滑动地抵顶第二螺旋槽2504相对的两个内侧面，该两个侧面在第二转动轴心线L2方向上间隔设置。
在其他实施方式中，第一传动部2531与第二传动部2551在沿中心线O的方向上相互错位，第一螺旋槽2503与第二螺旋槽2504在沿中心线O的方向上相互错位，第一传动块2508与第二传动块2509在沿中心线O的方向上相互错位；第一传动块2508及第二传动块2509分别滑动地容置于第一螺旋槽2503及第二螺旋槽2504中。具体地，第一传动部2531在YZ平面上的正投影区域位于第二传动部2551在该YZ平面上的正投影区域的一端，第一螺旋槽2503在该YZ平面上的正投影区域位于第二螺旋槽2504在该YZ平面上的正投影区域的一端，第一传动块2508在该YZ平面上的正投影区域位于第二传动块2509在该YZ平面上的正投影区域的一端，第一传动块2508及第二传动块2509分别滑动地容置于第一螺旋槽2503及第二螺旋槽2504中；或者，第一传动部2531在YZ平面上的正投影区域与第二传动部2551在该YZ平面上的正投影区域相交，第一螺旋槽2503在该YZ平面上的正投影区域与第二螺旋槽2504在该YZ平面上的正投影区域相交，第一传动块2508在该YZ平面上的正投影区域与第二传动块2509在该YZ平面上的正投影区域相交，第一传动块2508及第二传动块2509分别滑动地容置于第一螺旋槽2503及第二螺旋槽2504中。
在其他实施例中，联动件250a相对两侧的第一传动部2531与第二传动部2551关于中心线O对称设置，第一螺旋槽2503与第二螺旋槽2504在沿中心线O的方向上相互错位，第一传动块2508与第二传动块2509在沿中心线O的方向上相互错位。具体地，第一传动部2531在YZ平面上的正投影区域与第二传动部2551在该YZ平面上的正投影区域重合；第一螺旋槽2503在该YZ平面上的正投影区域位于第二螺旋槽2504在该YZ平面上的正投影区域的一端，或者第一螺旋槽2503在该YZ平面上的正投影区域与第二螺旋槽2504在该YZ平面上的正投影区域相交；第一传动块2508在该YZ平面上的正投影区域位于第二传动块2509在该YZ平面上的正投影区域的一端，或者第一传动块2508在该YZ平面上的正投影区域与第二传动块2509在该YZ平面上的正投影区域相交，第一传动块2508及第二传动块2509分别滑动地容置于第一螺旋槽2503及第二螺旋槽2504中。
联动件250a相对两侧的第一转动件253a与第二转动件255a可以关于中心线O对称，也可以不对称；本实施例中，第一转动件253a与第二转动件255a关于中心线O对称。第一传动部2531沿第一转 动轴心线L1延伸的长度与第二传动部2551沿第二转动轴心线L2延伸的长度可以相同，也可以不相同；本实施例中，第一传动部2531沿第一转动轴心线L1延伸的长度等于第二传动部2551沿第二转动轴心线L2延伸的长度。
本实施例中，第一传动部2531是第一圆弧板，该第一圆弧板的内周面可转动地贴合于第一连接部2501的外周面，该第一圆弧板的轴心线与第一转动轴心线L1共线，第一螺旋槽2503设于第一转动件253a，具体地，第一螺旋槽2503设于第一传动部2531的内周面，第一传动块2508设于第一连接部2501的外周壁，当第一传动部2531转动地套设于第一连接部2501时，第一传动块2508滑动地容置于第一螺旋槽2503中。第二传动部2551是第二圆弧板，该第二圆弧板的内周面可转动地贴合于第二连接部2502的外周壁，该第二圆弧板的轴心线与第二转动轴心线L2共线，第二螺旋槽2504设于第二转动件255a，具体地，第二螺旋槽2504设于第二传动部2551的内周面，第二传动块2509设于第二连接部2502的外周壁，当第二传动部2551转动地套设于第二连接部2502时，第二传动块2509滑动地容置于第二螺旋槽2504。
基座23具有配合槽232和设于配合槽232相对两端的止挡部238，第一传动部2531和/或第二传动部2551转动地容置于配合槽232中，第一传动部2531和/或第二传动部2551相对的两端分别抵顶止挡部238。具体地，基座23a正面对应第一连接部2501及第二连接部2502分别设有两个配合槽232，基座23a于每一配合槽232相对的两端分别设有止挡部238，第一传动部2531及第二传动部2551分别转动地容置于两个配合槽232中；第一传动部2531相对的两端分别抵顶止挡部238，以限制第一传动部2531围绕第一连接部2501转动时在第一连接部2501的轴心线方向上移动；第二传动部2551相对的两端分别抵顶止挡部238，以限制第二传动部2551围绕第二连接部2502转动时在第二连接部2502的轴心线方向上移动。具体地，配合槽232为圆弧槽，其中一配合槽232的轴心线与第一转动轴心线L1共线，另一配合槽232的轴心线与第二转动轴心线L2共线，止挡部238可以是但不限于设于配合槽232端部的圆弧条、矩形块等。
在其他实施例中，配合槽232可以在定位座的正面内陷，也就是配合槽232的正面与定位座的正面不共面，使得定位座的正面与配合槽232的正面之间形成台阶面；第一传动部2531及第二传动部2551分别转动地容置于两个配合槽232中，第一传动部2531相对两端的端面分别滑动地抵顶对应的配合槽232相对的两个台阶面，以限制第一传动部2531围绕第一连接部2501转动时在第一连接部2501的轴心线方向上移动；第二传动部2551相对两端的端面分别滑动地抵顶对应的配合槽232相对的两个台阶面，以限制第二传动部2551围绕第二连接部2502转动时在第二连接部2502的轴心线方向上移动。
在其他实施例中，第一转动件253a的第一传动部2531与基座23a之间通过圆弧形的第一限位槽与第一限位部的配合转动地连接，该第一限位槽的轴心线与第一转动轴心线L1共线，该第一限位槽设于第一传动部2531和基座23a中的一者，该第一限位部设于第一传动部2531和基座23a中的另一者；当第一传动部2531围绕第一连接部2501转动时，限位部在限位槽中滑动，以限制第一传动部2531在第一连接部2501的轴心线方向上移动。第二转动件255a的第二传动部2551与基座23a之间通过圆弧形的第二限位槽与第二限位部的配合转动地连接，该第二限位槽的轴心线与第二转动轴心线L1共线，该第二限位槽设于第二传动部2551和基座23a中的一者，该第二限位部设于第二传动部2551和基座23a中的另一者；当第二传动部2551围绕第二连接部2502转动时，第二限位部在第二限位槽中滑动，以限 制第二传动部2551在第二连接部2502的轴心线方向上移动。
本申请第二实施例中的转轴组件22a的组装方法与第一实施例中的转轴组件22的组装方法相同，在此不再描述。
请参阅图52，本申请第三实施例中转轴组件22b的结构与第二实施例中转轴组件22a的结构相似，不同之处在于：在第三实施例中，第一连接部2501的外周壁设有第一螺旋槽2503，第一传动部2531设有第一传动块2508，第一传动部2531转动地套设于第一连接部2501，第一传动块2508滑动地容置于第一螺旋槽2503中；第二连接部2502的外周壁设有第二螺旋槽2504，第二传动部2551转动地套设于第二连接部2502，第二传动块2509滑动地容置于第二螺旋槽2504中；第一螺旋槽2503与第二螺旋槽2504的旋向相反。第一传动部2531及第二传动部2551能分别相对于第一连接部2501及第二连接部2502转动，第一传动部2531相对于第一连接部2501转动或第二传动部2551相对于第二连接部2502转动时，第一传动部2531仅围绕第一连接部2501转动而在第一连接部2501的轴向限位，即第一传动部2531无法在第一连接部2501的轴向位移，且第二传动部2551仅围绕第二连接部2502转动而在第二连接部2502的轴向限位，即第二传动部2551无法在第二连接部2502的轴向位移；在第一传动部2531绕第一连接部2501转动时，第一传动块2508沿第一螺旋槽2503滑动以抵推联动件250a沿平行于第一连接部2501的轴向移动，联动件250a的移动以带动第二传动块2509沿第二螺旋槽2504滑动，使得第二传动部2551围绕第二连接部2502转动，从而实现第一传动部2531和第二传动部2551的同步转动。
请一并参阅图53-图54，本申请第四实施例中转轴组件22c的结构与第一实施例中转轴组件22的结构相似，不同之处在于：在第四实施例中，定位件261a与限位部2506之间通过齿条与卡齿的配合滑动地连接，该齿条的齿牙沿第一方向排列，即齿牙沿平行于第一转动轴心线L1的方向排列，该齿条设于定位件261a和限位部2506中的一者，该卡齿设于定位件261a和限位部2506中的另一者；当该卡齿定位于该齿条靠近第一转动件253的一端时，第一转动件253和第二转动件255呈完全展平状态；当该卡齿定位于该齿条远离第一转动件253的一端时，第一转动件253和第二转动件255呈完全折叠状态；当该卡齿与该齿条的齿牙啮合时，第一转动件253和第二转动件255呈中间折叠状态。本实施例中，定位件261a上设有齿条2617，限位部2506上设有卡齿2506d，限位部2506随联动件250c沿中心线O滑动，使得卡齿2506d可选择地定位于齿条2617靠近第一转动件253的一端、齿条2617的齿牙及背离第一转动件253的一端，使得第一转动件253和第二转动件255呈完全展平状态、中间折叠状态及完全折叠状态。
在其他实施例中，可以在限位部2506上设有齿条，该齿条的齿牙沿限位部2506的延伸方向排列；定位件261a上设有卡齿，该卡齿设于凸块2614b。当限位部2506随联动件沿中心线O滑动时，使得该卡齿可选择地定位于该齿条靠近第一转动件253的一端、齿条的齿牙及背离第一转动件253的一端，使得第一转动件253和第二转动件255呈完全展平状态、中间折叠状态及完全折叠状态。
如图53-图56所示，定位件261相对的两个凸块2614b面朝收容槽2616的侧面设有齿条2617，齿条2617的齿牙从靠近第一转动件253的端面沿平行于中心线O的方向排列至背离第一转动件253的端面；限位部2506远离第一转动件253的端部相对两侧分别设有卡齿2506d。当限位部2506的两个卡齿2506d分别定位于两个齿条2617靠近第一转动件253的端部时，第一转动件253和第二转动件255呈完全展平状态，即第一转动件253与第二转动件255之间的夹角为180度；当两个卡齿2506d分别定位于 两个齿条2617背离第一转动件253的端部时，第一转动件253和第二转动件255呈完全折叠状态，即第一转动件253与第二转动件255平行(夹角为0度)；当两个卡齿2506d分别定位于两个齿条2617的齿上时，第一转动件253和第二转动件255呈中间折叠状态，即第一转动件253与第二转动件255之间的夹角大于0度小于180度。
第一螺旋槽2503及第二螺旋槽2504在沿平行于联动件250c滑动方向上螺旋延伸的长度与齿条2617沿平行于中心线O方向排列齿牙的长度成正比。也就是第一螺旋槽2503及第二螺旋槽2504在沿平行于中心线O方向上螺旋延伸的长度越长，齿条2617沿平行于中心线O方向排列齿牙的长度越长；第一螺旋槽2503及第二螺旋槽2504在沿平行于中心线O方向上螺旋延伸的长度越短，齿条2617沿平行于中心线O方向排列齿牙的长度越短。
本申请第四实施例中的转轴组件22c的组装与第一实施例中的转轴组件22的组装相同，在此不再描述。本实施例中的转轴组件22c通过齿条2617与卡齿2506d的配合实现折叠定位，使得转轴组件22c的折叠定位更加稳定。
本申请第四实施例还包括设有上述转轴组件22c的折叠壳体及电子设备。本发明的第四实施例中电子设备的转轴组件22c通过齿条2617与卡齿2506d的配合实现折叠定位，在该电子设备处于完全展平状态时，当卡齿2506d定位于齿条2617靠近第一转动件253的一端时，使电子设备能保持稳定的完全展平状态，该电子设备跌落时各元件不易移位，避免损坏柔性屏；在该电子设备处于完全折叠状态时，卡齿2506d定位于齿条2617背离第一转动件253的一端，该电子设备跌落时各元件不易移位，避免损坏柔性屏；当卡齿2506d与齿条2617的齿牙啮合时，电子设备能定位在任意一弯曲角度，即柔性屏30的可折弯区域31定位于任意一弯曲角度，从而使电子设备能定位在完全展平状态、中间折叠状态及完全折叠状态，使得电子设备的两个框体之间具有0度至180度的悬停功能，悬停角度范围大；且能提升用户折叠手感。
请一并参阅图57-图60，本申请第五实施例中转轴组件22d的结构与第一实施例中转轴组件22的结构相似，不同之处在于：在第四实施例中定位机构26b的结构与第一实施例中的定位机构26不同，具体地，定位机构26b包括定位件261b及弹性构件265，弹性构件265设于基座23与定位件261b之间，用于偏压定位件261b以抵顶联动件250的限位部2506。具体地，弹性构件265具有预弹力，弹性构件265连接于定位件261b与基座23，弹性构件265弹性抵推定位件261b定位于限位部2506的第一限位段2506a、第二限位段2506b或中间限位段2506c，使得第一转动件253和第二转动件255呈完全展平状态、完全折叠状态或中间折叠状态。本实施例中，弹性构件265弹性抵推定位件261b的滑动方向垂直于联动件250的滑动方向。在其他实施例中，弹性构件265弹性抵推定位件261b的滑动方向与联动件250的滑动方向也可以不垂直。
本实施例中，基座23的正面于限位部2506相对两侧分别设有定位机构26b，两个定位机构26b的定位件261b能分别定位于限位部2506相对两侧的第一限位段2506a、第二限位段2506b或中间限位段2506c。基座23的正面于限位部2506相对两侧设有支撑框266，两个定位机构26b分别设于两个支撑框266上；支撑框266包括连接于基座23正面的支撑板2662及连接于支撑板2662的支撑柱2664，支撑柱2664的轴心线垂直于联动件250的滑动方向。定位件261b包括U形的滑动部2614d及设于滑动部2614d的凸块2614b；弹性构件265为套设于支撑柱2664上的弹簧，该弹簧相对两端分别弹性抵顶支撑 板2662及滑动部2614d，使得凸块2614b能分别定位于限位部2506的第一限位段2506a、第二限位段2506b或中间限位段2506c。
以上是本申请实施例的实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请实施例原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本申请的保护范围。

Claims (25)

  1. 一种转轴组件，其特征在于，所述转轴组件包括：
    基座；
    联动件，连接于所述基座并能沿第一方向相对于所述基座滑动，所述联动件包括第一连接部和第二连接部；
    第一转动件，转动地连接于所述基座，所述第一转动件与所述第一连接部之间通过第一螺旋槽与第一传动部的配合转动地连接，所述第一螺旋槽设于所述第一转动件和所述第一连接部中的一者，所述第一传动部设于所述第一转动件和所述第一连接部中的另一者；以及
    第二转动件，转动地连接于所述基座，所述第二转动件与所述第二连接轴之间通过第二螺旋槽与第二传动部的配合转动地连接，所述第二螺旋槽设于所述第二转动件和所述第二连接部中的一者，所述第二传动部设于所述第二转动件和所述第二连接部中的另一者，所述第一螺旋槽与所述第二螺旋槽的旋向相反。
  2. 根据权利要求1所述的转轴组件，其特征在于，当所述第一转动件相对于所述第一连接部转动时，所述第一传动部沿所述第一螺旋槽移动使得所述联动件相对于所述基座沿所述第一方向滑动，所述基座的滑动使所述第二传动部沿所述第二螺旋槽移动，进而使所述第二转动件相对于所述第二连接部转动。
  3. 根据权利要求1所述的转轴组件，其特征在于，所述第一转动件与所述第一连接部之间的第一转动轴心线平行于所述第一方向，所述第二转动件与所述二连接部之间的第二转动轴心线平行于所述第一方向，并且所述第一转动轴心线与第二转动轴心线彼此平行或重合。
  4. 根据权利要求3所述的转轴组件，其特征在于，所述第一连接部及所述第二连接部分别位于所述联动件的中心线的两侧，所述联动件的中心线平行于所述第一方向。
  5. 根据权利要求4所述的转轴组件，其特征在于，所述第一螺旋槽与所述第二螺旋槽关于所述中心线对称，或者所述第一转动件与所述第二转动件关于所述中心线对称。
  6. 根据权利要求3所述的转轴组件，其特征在于，所述第一连接部及所述第二连接部沿所述第一方向间隔地设置于所述联动件；所述第一螺旋槽与所述第二螺旋槽在所述第一方向上相互错位。
  7. 根据权利要求3所述的转轴组件，其特征在于，所述第一连接部的外周壁设有所述第一螺旋槽，所述第一传动部转动地容置于所述第一螺旋槽，所述第一传动部包括螺旋形的两个第一抵推面，两个所述第一抵推面分别抵顶所述第一螺旋槽相对的两个第一内侧面；所述第二连接部的外周壁设有所述第二螺旋槽，所述第二传动部转动地容置于所述第二螺旋槽，所述第二传动部包括螺旋形的两个第二抵推面，两个所述第二抵推面分别抵顶所述第二螺旋槽相对的两个第二内侧面。
  8. 根据权利要求3所述的转轴组件，其特征在于，所述第一螺旋槽设于所述第一转动件，所述第一连接部的外周壁设有第一传动块，所述第一传动部转动地套设于所述第一连接部，所述第一传动块滑动地容置于所述第一螺旋槽中；所述第二螺旋槽设于所述第二转动件，所述第二连接部的外周壁设有第二传动块，所述第二传动部转动地套设于所述第二连接部，所述第二传动块滑动地容置于所述第二螺旋槽中。
  9. 根据权利要求3所述的转轴组件，其特征在于，所述第一连接部的外周壁设有所述第一螺旋槽，所述第一传动部设有第一传动块，所述第一传动部转动地套设于所述第一连接部，所述第一传动块滑动 地容置于所述第一螺旋槽中；所述第二连接部的外周壁设有所述第二螺旋槽，所述第二传动部转动地套设于所述第二连接部，所述第二传动块滑动地容置于所述第二螺旋槽中。
  10. 根据权利要求8或9所述的转轴组件，其特征在于，所述第一传动部包括第一圆弧板，所述第一圆弧板的轴心线与所述第一转动轴心线共线，所述第二传动部包括第二圆弧板，所述第二圆弧板的轴心线与所述第二转动轴心线共线；所述基座具有配合槽和设于所述配合槽相对两端的止挡部，所述第一传动部和/或所述第二传动部转动地容置于所述配合槽中，所述第一传动部和/或所述第二传动部相对的两端分别抵顶所述止挡部。
  11. 根据权利要求3所述的转轴组件，其特征在于，所述第一传动部与所述基座之间通过圆弧形的第一限位槽与第一限位部的配合转动地连接，以限制所述第一传动部在所述第一方向上的移动，所述第一限位槽的轴心线与所述第一转动轴心线共线，所述第一限位槽设于所述第一传动部和所述基座中的一者，所述第一限位部设于所述第一传动部和所述基座中的另一者；所述第二传动部与所述基座之间通过圆弧形的第二限位槽与第二限位部的配合转动地连接，以限制所述第二传动部在所述第一方向上的移动，所述第二限位槽的轴心线与所述第二转动轴心线共线，所述第二限位槽设于所述第二传动部和所述基座中的一者，所述第二限位部设于所述第二传动部和所述基座中的另一者。
  12. 根据权利要求3所述的转轴组件，其特征在于，所述联动件与所述基座之间通过导滑槽与导滑部的配合滑动地连接，所述导滑槽沿所述第一方向延伸，所述导滑槽设于所述基座和所述联动件中的一者，所述导滑部设于所述基座和所述联动件中的另一者。
  13. 根据权利要求3所述的转轴组件，其特征在于，所述转轴组件还包括定位机构，所述定位机构包括连接于所述基座的定位件；所述联动件还包括限位部，当所述联动件相对于所述基座滑动时，所述限位部与所述定位件之间的配合使所述联动件相对于所述基座限位。
  14. 根据权利要求13所述的转轴组件，其特征在于，所述限位部包括沿所述第一方向设置的第一限位段、第二限位段及中间限位段，所述中间限位段位于所述第一限位段与所述第二限位段之间；
    其中，当所述定位件定位于所述第一限位段时，所述第一转动件和所述第二转动件呈完全展平状态；当所述定位件定位于所述第二限位段时，所述第一转动件和所述第二转动件呈完全折叠状态；当所述定位件定位于所述中间限位段时，所述第一转动件和所述第二转动件呈中间折叠状态。
  15. 根据权利要求13所述的转轴组件，其特征在于，所述定位件和所述限位部中的一者设置有齿条，所述齿条的齿牙沿所述第一方向排列，所述定位件和所述限位部中的另一者设置有卡齿以用于与所述齿条相配合；
    其中，当所述卡齿定位于所述齿条的一端时，所述第一转动件和所述第二转动件呈完全展平状态；当所述卡齿定位于所述齿条的另一端时，所述第一转动件和所述第二转动件呈完全折叠状态；当所述卡齿与所述齿条的齿牙啮合时，所述第一转动件和所述第二转动件呈中间折叠状态。
  16. 根据权利要求13至15中任一项所述的转轴组件，其特征在于，所述定位件包括弹性的定位部；当所述联动件相对于所述基座滑动时，所述限位部能够抵推所述定位部，使所述定位部发生弹性变形从而实现所述限位部与所述定位件之间的配合。
  17. 根据权利要求13至15中任一项所述的转轴组件，其特征在于，所述定位机构还包括弹性构件，所述弹性构件设于所述基座与所述定位件之间，用于偏压所述定位件以抵顶所述联动件的限位部。
  18. 根据权利要求3所述的转轴组件，其特征在于，所述转轴组件还包括支撑机构，所述支撑机构包括位于所述基座相对两侧的两个侧部支撑件，每一侧部支撑件与所述基座之间通过弧形调节槽与调节轴的配合活动地连接，所述调节轴的轴心线平行于所述第一转动轴心线；其中一个所述侧部支撑件转动地连接于所述第一转动件，另一个所述侧部支撑件转动地连接于所述第二转动件。
  19. 根据权利要求18所述的转轴组件，其特征在于，所述侧部支撑件包括侧部支撑板及设于所述侧部支撑板靠近所述基座一侧的调节臂，所述调节槽设于所述调节臂；所述调节轴设于所述基座，所述调节轴转动并滑动地容置于所述调节槽。
  20. 根据权利要求19所述的转轴组件，其特征在于，所述调节槽包括位于其相对两端的第一定位段及第二定位段，所述第一定位段相较于所述第二定位段更靠近所述侧部支撑板；当两个所述侧部支撑件呈完全展平状态时，所述调节轴定位于所述第一定位段；当两个所述侧部支撑件呈完全折叠状态时，所述调节轴定位于所述第二定位段。
  21. 根据权利要求19所述的转轴组件，其特征在于，所述支撑机构还包括位于两个所述侧部支撑件之间的中部支撑件、以及弹性件，所述弹性件连接于所述基座和所述中部支撑件以用于偏压所述中部支撑件向所述基座靠拢；当两个所述侧部支撑件呈完全展平状态时，所述调节臂远离所述侧部支撑板的端部抵顶所述中部支撑件的背面，所述侧部支撑件的正面与所述中部支撑件的正面共面。
  22. 根据权利要求21所述的转轴组件，其特征在于，所述中部支撑件包括中部支撑板及设于所述中部支撑板背面的导滑柱，所述基座设有导滑孔，所述导滑柱滑动地穿设于所述导滑孔中；所述支撑机构还包括卡接件，所述导滑柱远离所述中部支撑板的端部卡接于所述卡接件，所述弹性件被所述卡接件与所述基座夹持。
  23. 根据权利要求19所述的转轴组件，其特征在于，所述支撑机构还包括位于两个所述侧部支撑件之间的中部支撑件，所述联动件还设有避位通槽；当所述第一转动件和所述第二转动件呈完全展平状态时，所述第一传动部远离对应的侧部支撑件的端部和所述第二传动部远离对应的侧部支撑件的端部分别穿过所述避位通槽抵顶所述中部支撑件的背面。
  24. 一种折叠壳体，其特征在于，所述折叠壳体包括转轴组件及两个框体，所述转轴组件包括基座、联动件、第一转动件及第二转动件，所述联动件连接于所述基座并能沿第一方向相对于所述基座滑动，所述联动件包括第一连接部和第二连接部；所述第一转动件转动地连接于所述基座，所述第一转动件与所述第一连接部之间通过第一螺旋槽与第一传动部的配合转动地连接，所述第一螺旋槽设于所述第一转动件和所述第一连接部中的一者，所述第一传动部设于所述第一转动件和所述第一连接部中的另一者；所述第二转动件转动地连接于所述基座，所述第二转动件与所述第二连接轴之间通过第二螺旋槽与第二传动部的配合转动地连接，所述第二螺旋槽设于所述第二转动件和所述第二连接部中的一者，所述第二传动部设于所述第二转动件和所述第二连接部中的另一者，所述第一螺旋槽与所述第二螺旋槽的旋向相反；所述转轴组件位于两个所述框体之间，所述转轴组件的第一转动件远离基座的一端连接于其中一个框体，所述转轴组件的第二转动件远离基座的一端连接于另一个框体。
  25. 一种电子设备，其特征在于，所述电子设备包括柔性屏、两个框体及转轴组件，所述转轴组件包括基座、联动件、第一转动件及第二转动件，所述联动件连接于所述基座并能沿第一方向相对于所述基座滑动，所述联动件包括第一连接部和第二连接部；所述第一转动件转动地连接于所述基座，所述第 一转动件与所述第一连接部之间通过第一螺旋槽与第一传动部的配合转动地连接，所述第一螺旋槽设于所述第一转动件和所述第一连接部中的一者，所述第一传动部设于所述第一转动件和所述第一连接部中的另一者；所述第二转动件转动地连接于所述基座，所述第二转动件与所述第二连接轴之间通过第二螺旋槽与第二传动部的配合转动地连接，所述第二螺旋槽设于所述第二转动件和所述第二连接部中的一者，所述第二传动部设于所述第二转动件和所述第二连接部中的另一者，所述第一螺旋槽与所述第二螺旋槽的旋向相反；所述转轴组件位于两个所述框体之间，所述转轴组件的第一转动件远离基座的一端连接于其中一个框体，所述转轴组件的第二转动件远离基座的一端连接于另一个框体，所述柔性屏连接于两个所述框体及所述转轴组件。
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