WO2023151422A1 - 转轴装置、折叠壳体及电子设备 - Google Patents

转轴装置、折叠壳体及电子设备 Download PDF

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Publication number
WO2023151422A1
WO2023151422A1 PCT/CN2022/143990 CN2022143990W WO2023151422A1 WO 2023151422 A1 WO2023151422 A1 WO 2023151422A1 CN 2022143990 W CN2022143990 W CN 2022143990W WO 2023151422 A1 WO2023151422 A1 WO 2023151422A1
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WO
WIPO (PCT)
Prior art keywords
linkage
rotating
arc
rotating shaft
positioning seat
Prior art date
Application number
PCT/CN2022/143990
Other languages
English (en)
French (fr)
Inventor
郑泽宽
张颜斌
张大鹏
彭翊
梁子豪
张前
范桃桃
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 WO2023151422A1 publication Critical patent/WO2023151422A1/zh

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    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/10—Arrangements for locking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/10—Arrangements for locking
    • F16C11/103—Arrangements for locking frictionally clamped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/12—Pivotal connections incorporating flexible connections, e.g. leaf springs
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
    • F16D23/02—Arrangements for synchronisation, also for power-operated clutches
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • the present application relates to the field of supporting flexible parts, and in particular to a rotating shaft device for supporting flexible parts, a foldable casing provided with the rotating shaft device, and an electronic device provided with the foldable casing.
  • bendable flexible display screens With the development of display equipment, bendable flexible display screens have appeared.
  • the folding schemes of bendable flexible display screens include inner folding and outer folding, and folding screens are becoming more and more popular among people.
  • Folding screens in the related art are generally supported by a hinge mechanism.
  • most of the hinge structures at present are relatively complicated and do not meet the requirements of mass production.
  • a rotating shaft device provided by the present application includes a supporting mechanism, a rotating assembly and a linkage assembly.
  • the supporting mechanism includes a side support; the rotating assembly includes a positioning seat and a rotating mechanism arranged on opposite sides of the positioning seat.
  • the rotating The mechanism includes a rotating part and a connecting part.
  • the linkage mechanism of the linkage seat includes linkage pieces that are rotatably connected to the opposite sides of the linkage base, and the first arc-shaped slot is passed between the end of the linkage piece away from the linkage base and the corresponding rotating piece Cooperative connection with the first guide shaft, the end of the linkage member far away from the linkage seat and the corresponding connection piece are connected through the second arc-shaped groove and the second guide shaft, and the side support Rotationally connected with the corresponding connecting piece, the side support is slidably connected with the corresponding rotating piece; the rotating mechanism rotates relative to the positioning seat to drive the linkage to rotate relative to the linkage seat and drive the side
  • the upper supporting part rotates and slides relative to the positioning seat, so that the two side supporting parts are mutually bent or unfolded synchronously.
  • the present application also provides a foldable casing, which includes a rotating shaft device and two frames, the rotating shaft device is located between the two frames, and the two frames are respectively connected to two ends of the rotating shaft device.
  • the connecting part of the rotating mechanism, the frame body drives the rotating mechanism to rotate relative to the positioning seat, and the supporting mechanism is bent or unfolded synchronously with the rotating mechanism and the linkage mechanism.
  • the present application also provides an electronic device, the electronic device includes a flexible part and a folding case, the flexible part is arranged on the folding case, and the flexible part is bent or flattened along with the folding case.
  • FIG. 1 is a schematic diagram of a three-dimensional structure of an electronic device in one embodiment of the present application
  • FIG. 2 is an exploded perspective view of the three-dimensional structure of the foldable housing and flexible parts of the electronic device in FIG. 1;
  • Fig. 3 is an exploded perspective view of the three-dimensional structure of the foldable casing in Fig. 2;
  • Fig. 4 is a schematic perspective view of the three-dimensional structure of the foldable casing in Fig. 3;
  • Fig. 5 is an exploded perspective view of the three-dimensional structure of the rotating shaft device in Fig. 3;
  • Fig. 6 is a schematic perspective view of the three-dimensional structure of the rotating shaft device in Fig. 5 from another perspective;
  • Fig. 7 is an exploded perspective view of the three-dimensional structure of the supporting mechanism, the rotating assembly and the folding-assisting assembly of the rotating shaft device in Fig. 5;
  • Fig. 8 is a schematic perspective view of the three-dimensional structure of the rotating shaft device in Fig. 7 from another perspective;
  • Fig. 9 is an exploded perspective view of the three-dimensional structure of the rotating assembly and the folding-assisting assembly in Fig. 7;
  • Fig. 10 is a schematic perspective view of the three-dimensional structure of the rotating assembly and the folding-assisting assembly in Fig. 9;
  • Fig. 11 is an enlarged view of the three-dimensional structure of the rotating shaft device in Fig. 3;
  • FIG. 12-17 are three-dimensional cross-sectional views of different parts of the rotating shaft device in FIG. 11;
  • Fig. 18 is a three-dimensional schematic diagram of the electronic device in Fig. 1 bent into one of the angles;
  • Fig. 19 is an enlarged view of the three-dimensional structure of the rotating shaft device in Fig. 18;
  • Fig. 20 is an exploded perspective view of the three-dimensional structure of the rotating shaft device in Fig. 19;
  • 21-26 are cross-sectional views of different parts of the rotating shaft device in FIG. 19;
  • FIG. 27 is a schematic perspective view of the three-dimensional structure of the electronic device in FIG. 1 in a fully bent state
  • Fig. 28 is an enlarged view of the three-dimensional structure of the rotating shaft device in Fig. 27;
  • Fig. 29 is a schematic perspective view of the three-dimensional structure of the rotating shaft device in Fig. 28;
  • 30-35 are cross-sectional views of different parts of the electronic device in FIG. 27 .
  • a rotating shaft device the rotating shaft device includes: a support mechanism, the support mechanism includes a side support;
  • a rotating assembly the rotating assembly includes a positioning seat and a rotating mechanism arranged on opposite sides of the positioning seat, the rotating mechanism includes a rotating member and a connecting member, one end of the rotating member is rotatably connected to the positioning seat, the The opposite end of the rotating member is rotationally connected to the connecting member; and
  • a linkage assembly the linkage assembly includes a linkage base and a linkage mechanism
  • the linkage mechanism includes linkage pieces that are rotatably connected to the opposite sides of the linkage base, and the end of the linkage piece away from the linkage base is connected to the corresponding rotating piece
  • the connection between the first arc-shaped groove and the first guide shaft, the end of the linkage member away from the linkage seat and the corresponding connecting piece through the cooperation between the second arc-shaped groove and the second guide shaft connected, the side supports are rotationally connected to the corresponding connecting parts, and the side supports are slidingly connected to the corresponding rotating parts;
  • the rotating mechanism rotates relative to the positioning seat to drive the linkage Rotate relative to the linkage seat and drive the side support to rotate and slide relative to the positioning seat, so that the two side supports are bent or unfolded synchronously.
  • the first arc-shaped groove is bent toward a side away from the side support, the second arc-shaped groove is bent toward a side close to the side support, and when the rotating shaft device is in a flattened state, The first arc-shaped slot is closer to the side support than the second arc-shaped slot.
  • the support mechanism also includes a middle support, two side supports are arranged on opposite sides of the middle support, the middle support and the side supports are used to support the flexible member, the During the synchronous mutual bending process of the side supports, the first guide shaft slides from the end of the first arc-shaped groove close to the middle support to the end far away from the middle support, and the second guide The sliding shaft slides from an end of the second arc-shaped slot away from the middle support to an end close to the middle support.
  • the first arc-shaped groove is arranged on the side of the linkage member facing the rotating member, and the first guide shaft is fixed on the rotating member; or the first arc-shaped groove is arranged on the rotating member Facing the side of the linkage, the first guide shaft is fixed to the linkage, and the first guide shaft is slidably and rotatably inserted in the first arc-shaped groove.
  • the connecting part is protrudingly provided with a sliding guide part close to the linkage part, the second arc-shaped groove is arranged on the guide slide part, and the second guide sliding shaft is fixed to the linkage part; or the second The arc-shaped groove is arranged on the linkage member, and the second guide-slide shaft is fixed on the guide-slide portion; the second guide-slide shaft is slidably and rotatably inserted in the second arc-shaped groove.
  • the axis of the first guide shaft is parallel to the axis of the second guide shaft.
  • the side of the side support away from the middle support and the connecting piece are connected through the cooperation between the first arc groove and the first arc rail, and the axis line of the first arc groove is in line with
  • the axis of rotation between the side support piece and the connecting piece is collinear; the side of the side support piece close to the middle support piece and the rotation piece passes through a slide groove and a guide column the mating connection.
  • the chute extends obliquely to a side away from the middle support member, and the axis line of the guide sliding post is parallel to the axis line of the first arc groove.
  • the positioning seat and the rotating member are connected through the cooperation between the second arc groove and the second arc track, and the axis line of the second arc track is connected to the center line between the rotating member and the positioning seat.
  • the axes of rotation are collinear.
  • the end of the rotating part away from the connecting part is arranged between the middle support part and the positioning seat, and the middle support part is provided with an arc guide surface corresponding to the second arc track.
  • the rotation axis between the rotating member and the positioning seat is parallel to the rotation axis between the linkage member and the linkage seat.
  • the linkage mechanism also includes two rotating shafts and a gear combination located between the linkage parts, the two linkage parts are respectively connected to the two rotation shafts, and the linkage seat is parallel to the rotation shaft.
  • the rotating shaft device also includes a limit mechanism, the limit mechanism includes a push piece, a support piece and an elastic piece arranged on the linkage piece, and the elastic piece provides the support between the support piece and the push piece.
  • the elastic force against each other, the rotating mechanism rotates relative to the positioning seat through the linkage mechanism, the pushing member rotates relative to the resisting member, and the elastic member is elastically deformed by elastic extrusion , the frictional resistance between the resisting member and the resisting member positions the linkage member relative to the linkage seat, so as to realize the positioning of the side support member at a specific angle relative to the middle support member.
  • the resisting member includes a first cam, the resisting member includes a second cam, the first cam and the second cam rotatably resist each other, and the elastic member elastically resists the resisting member.
  • the friction torque between the first cam and the second cam is greater than the rebound force of the flexible member, so that the two side support members are positioned at a specific angle.
  • the resisting member and the elastic member are sheathed on the rotating shaft, and the limit mechanism further includes a positioning member disposed on the end of the rotating shaft away from the resisting member, and the resisting member is located on the Between the resisting member and the elastic member, the end of the elastic member away from the resisting member elastically abuts against the positioning member.
  • Each linkage is connected with the push piece, and each push piece includes a first cam; the support piece includes two second cams, and the two second cams are slidably sleeved on the two sides respectively.
  • the rotating shaft, and the linkage member rotates along with the rotating member along the rotating shaft to drive the first cam to rotate relative to the second cam.
  • the end of the rotating shaft away from the elastic member is connected to the positioning seat.
  • a folding casing the folding casing includes a rotating shaft device and two frames
  • the rotating shaft device includes a supporting mechanism, a rotating assembly and a linkage assembly
  • the supporting mechanism includes a side support
  • the rotating assembly includes a positioning Seat and a rotating mechanism arranged on opposite sides of the positioning seat
  • the rotating mechanism includes a rotating part and a connecting part, one end of the rotating part is connected to the positioning seat in a rotational manner, and the opposite end of the rotating part is connected in a rotating manner
  • the linkage assembly includes a linkage seat and a linkage mechanism
  • the linkage mechanism includes linkage pieces that are rotatably connected to the opposite sides of the linkage seat, and the end of the linkage piece away from the linkage seat is connected to the corresponding
  • the rotating parts are connected through the first arc groove and the first guide shaft, and the end of the linkage member away from the linkage seat and the corresponding connecting piece are connected through the second arc groove and the second guide shaft.
  • the matching connection of the shaft, the side support is rotationally connected with the corresponding connecting piece, and the side support is slidingly connected with the corresponding rotating piece;
  • the rotating shaft device is located between the two frames, and the two The two frames are respectively connected to the connectors of the two rotating mechanisms of the rotating shaft device, and the frames drive the rotating mechanism to rotate relative to the positioning seat, and the rotating mechanism is relatively to the positioning seat Rotate to drive the linkage to rotate relative to the linkage seat and to drive the side support to rotate and slide relative to the positioning seat, so that the support mechanism can be bent or unfolded synchronously with the rotation mechanism and the linkage mechanism.
  • An electronic device the electronic device includes a flexible part and a foldable casing
  • the rotating shaft device includes a supporting mechanism, a rotating assembly and a linkage assembly
  • the supporting mechanism includes a side support
  • the rotating assembly includes a positioning seat and a The rotating mechanism on the opposite sides of the positioning seat
  • the rotating mechanism includes a rotating member and a connecting member, one end of the rotating member is rotatably connected to the positioning seat, and the opposite end of the rotating member is rotatably connected to the connecting member
  • the linkage assembly includes a linkage seat and a linkage mechanism
  • the linkage mechanism includes a linkage piece that is rotatably connected to the opposite sides of the linkage seat, and the end of the linkage piece away from the linkage seat is between the corresponding rotating piece
  • An electronic device 100 in one embodiment of the present invention includes a foldable casing 20 and a flexible member 30 disposed on the foldable casing 20 .
  • the flexible part 30 can be various flexible parts with corresponding functions such as a flexible display screen, a flexible touch screen, and a flexible touch screen, or a flexible part fixedly attached to a flexible support plate, such as a flexible display screen attached to a flexible steel plate, Flexible touch screen, etc.
  • the flexible member 30 is bent or flattened along with the foldable casing 2 .
  • the folding case 20 includes two frames 21 and a hinge device 22 connected between the two frames 21 .
  • the flexible member 30 includes a bendable area 31 corresponding to the hinge device 22 , and two non-bendable areas 33 connected to opposite sides of the bendable area 31 .
  • the two non-bending regions 33 of the flexible member 30 can be respectively fixed on the front surfaces of the two frame bodies 21 , and the bendable region 31 is attached to the front surface of the rotating shaft device 22 .
  • the bendable area 31 of the flexible member 30 is bent or flattened along with the shaft device 22 .
  • the rotating shaft device 22 includes a supporting mechanism 23 , a rotating assembly 25 , a linkage assembly 26 and a limiting mechanism 27 , the linkage assembly 26 is connected to the rotating assembly 25 , and the limiting mechanism 27 is connected to the linkage assembly 26 .
  • the support mechanism 23 includes a middle support 231 and side supports 233 disposed on two opposite sides of the middle support 231 .
  • the flexible member 30 is attached to the middle support 231 and the side supports 233 .
  • the rotating assembly 25 includes a positioning seat 251 and a rotating mechanism 253 located on opposite sides of the positioning seat 251.
  • the rotating mechanism 253 includes a rotating member 254 and a connecting member 256.
  • One end of the rotating member 254 is rotatably connected to the positioning seat 251, and the rotating member 254 is opposite.
  • the linkage assembly 26 includes a linkage seat 261 and a linkage mechanism 263 located on the linkage seat 261.
  • the linkage mechanism 263 includes linkage pieces 264 which are rotatably arranged on opposite sides of the linkage base 261. 254 through the first arc-shaped groove 2640 and the first guide sliding shaft 2540; between the end of the linkage 264 away from the linkage seat 261 and the corresponding connecting piece 256 through the second arc-shaped groove 2561 and the second guide shaft 2540; The matching connection of the sliding shaft 2641, the rotation connection between the side support 233 and the corresponding connecting piece 256, and the sliding connection between the side support 233 and the corresponding rotation piece 254; the rotation mechanism 253 rotates relative to the positioning seat 251 to drive the corresponding
  • the linkage member 264 rotates relative to the linkage seat 261 and drives the side support member 233 to rotate and slide relative to the positioning seat 251, so that the two side support members 233 are bent or unfolded synchronously relative to the middle support member 231.
  • the two frame bodies 21 of the electronic device 100 are respectively connected to the two connecting pieces 256 of the rotating shaft device 22, the frame body 21 drives the rotating piece 254 to rotate relative to the positioning seat 251 through the connecting piece 256, and the connecting piece 256 and the rotating piece 254 drive the linkage
  • the member 264 rotates relative to the linkage seat 261, so that the supporting mechanism 23 is bent or unfolded synchronously with the rotating mechanism 253 and the linkage mechanism 263, the flexible member 30 is bent or flattened with the supporting mechanism 23, and the bendable area 31 can be bent Form a U-shape or a tear-drop shape or whatever. In this embodiment, the bendable region 31 can be bent into a drop shape.
  • the front side refers to a surface facing the same direction as the light emitting surface of the flexible member 30
  • the back side refers to a surface facing away from the light emitting surface of the flexible member 30 .
  • the electronic device 100 is, for example, but not limited to a mobile phone, a tablet computer, a display, a liquid crystal panel, an OLED panel, a TV, a smart watch, a VR head-mounted display, a vehicle display, and any other products and components with display functions.
  • the "connection" in the description of the embodiments of the present invention includes direct connection and indirect connection, for example, 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.
  • the connection also includes two cases of integrated connection and non-integrated connection.
  • the integrated connection means that A and B are formed and connected in one piece, and the non-integrated connection means that A and B are formed and connected in a non-integrated manner.
  • the rotating shaft device 22 of the electronic equipment 100 of the present invention includes a support mechanism 23, a rotating assembly 25 and a linkage assembly 26.
  • One end of the rotating member 254 of the rotating assembly 25 is rotatably connected to the positioning seat 251, and the opposite end of the rotating member 254 is rotatably connected.
  • On the connecting piece 256; the linkage piece 264 of the linkage assembly 26 is connected between the end of the linkage piece 264 away from the linkage seat 261 and the rotating piece 254 through the cooperation between the first arc-shaped groove 2640 and the first guide shaft 2540, and the linkage piece 264 is away from the linkage seat 261.
  • One end and the connecting piece 256 are connected through the second arc-shaped groove 2561 and the second guide shaft 2641, the side supporting piece 233 is connected to the connecting piece 256 in rotation, and the side supporting piece 233 is slidably connected to the rotating piece 254 .
  • the connecting piece 256 drives the rotating piece 254 to rotate relative to the positioning seat 251, and the connecting piece 256 and the rotating piece 254 drive the two linkage pieces 264 to rotate synchronously relative to the linkage seat 261. , so as to drive the two side support members 233 to fold or unfold mutually, so as to realize the folding or unfolding of the flexible member 30 .
  • the rotating shaft device 22 can realize synchronous folding or synchronous flattening through the support mechanism 23, the rotating assembly 25 and the linkage assembly 26, compared with the prior art that uses a hinge mechanism to support the flexible member, the rotating shaft device 22 of the present application has a simple structure and is easy to manufacture. The cost is low, and the connection reliability between the various parts is high, and the strength of the whole machine is improved; secondly, the first arc-shaped groove 2640 on the rotating part 254 or the linkage part 264 of the present application, and the The second arc-shaped groove 2561 is made by mold opening. Compared with the linear movement method between the linkage and the rotating part in the current technology, that is, the CNC lathe is used to set up a linear chute on the connecting rod or the rotating part.
  • the manufacturing control cost and processing cost of the rotating shaft device 22 of the present application are reduced; in addition, in the present application, an arc-shaped groove and The cooperation of the guide shaft replaces the cooperation of the linear chute and the slide rail in the prior art, which reduces the overall width of the rotating shaft device 22, thereby reducing the internal space of the housing 20 occupied by the rotating shaft device 22, which is beneficial to the main board or battery, etc. Layout of other elements.
  • the rotating shaft device 22 in this embodiment includes a rotating assembly 25, a linkage assembly 26 and a limit mechanism 27.
  • the rotation assembly 25, the linkage assembly 26 and the limit mechanism 27 form an integral structure, and the integral structure is arranged on the supporting mechanism. 23 back.
  • the rotating shaft device 22 may also include two rotating assemblies 25, two linkage assemblies 26 and two limit mechanisms 27, the two rotating assemblies 25 are respectively arranged at opposite ends of the back of the support mechanism 23, and the two The linkage assembly 26 is respectively connected to the two rotating assemblies 25 , and the two limit mechanisms 27 are respectively connected to the two linkage assemblies 26 .
  • the rotating shaft device 22 may also only include three or more rotating assemblies 25, three or more linkage assemblies 26 and three or more limiting mechanisms 27, three or more More than three rotating assemblies 25 are arranged on the back side of the supporting mechanism 23 and are arranged at intervals along the length direction of the supporting mechanism 23.
  • Three or more linkage assemblies 26 are connected to three or more rotating assemblies 25 respectively.
  • One or more limit mechanisms 27 are respectively connected to three or more linkage assemblies 26 .
  • the rotating mechanisms 253 on opposite sides of the rotating shaft device 22 are respectively fixedly connected to the two frame bodies 21, specifically, the connectors 256 of the two rotating mechanisms 253 are respectively fixedly connected to the two frame bodies 21
  • One of the frame bodies 21 is folded or flattened relative to the other frame body 21, which can drive the corresponding rotating mechanism 253 to rotate relative to the positioning seat 251, and the rotating mechanism 253 drives the two side supports 233 relative to the positioning through the linkage assembly 26
  • the seat 251 rotates and slides synchronously until the two side supports 233 and the middle support 231 are synchronously bent into a water drop shape or are synchronously unfolded into a horizontal shape, and the bendable area 31 of the flexible member 30 is folded into a shape along with the bendable area 31 . Droplets or spread out horizontally.
  • the frame body 21 includes a front face 211, a back face 213, opposite side faces 214 and two end faces 215, and the rotating shaft device 22 is connected between the two end faces 215 of the two frame bodies 21,
  • the non-bending area 33 of the flexible member 30 is connected to the front 211 of the frame body 21; each frame body 21 is provided with a receiving groove 216 towards the end face 215 of the rotating shaft device 22, and the receiving groove 216 passes through the front face 211 of the frame body 21, and the receiving groove 216
  • the two opposite ends extend close to the two opposite sides 214 of the frame body 21 .
  • each connecting piece 256 is fixedly connected with the corresponding frame body 21 .
  • the back side 213 of the frame body 21 is provided with a plurality of receiving spaces (not shown in the figure), and the receiving spaces are used for installing electronic devices such as circuit boards and batteries.
  • the middle supporting part 231 is a rectangular plate shape, and the middle supporting part 231 comprises a front side 2311 and a back side 2312 facing away from the front side 2311.
  • a guide slider 2313 is provided, and the surface of the guide slider 2313 facing away from the front surface 2311 forms an arc guide surface 2314 .
  • the middle supporting member 231 defines two spaced-apart escape holes 2315 between the two guide sliders 2313 , and each arc guide surface 2314 is coplanar with the corresponding side surface of the escape holes 2315 .
  • the back 2312 of the middle support 231 is provided with several connecting cylinders 2316 around the two guide sliders 2313, and each connecting cylinder 2316 is provided with internal threads along its axial direction; A connecting cylinder 2316 protrudes from four corners of each guide slider 2313. Two spaced first escape openings 2317 are respectively provided on opposite sides of the central part of the central support member 231 .
  • the side support 233 is in the shape of a rectangular plate, and the side of the side support 233 away from the middle support 231 is connected to the connecting piece 256 through the cooperation of the first arc groove and the first arc rail.
  • the side support 233 includes a front 2331 and a back 2332 facing away from the front 2331, the side support 233 is provided with a guide slider 2333, the guide slider 2333 is provided with a first arc groove 2334, and the connector 256 is provided with a slidable ground.
  • the first circular arc rail 2562 inserted in the first circular arc groove 2334 , the axis of the first circular arc groove 2334 is collinear with the rotation axis between the side support 233 and the connecting member 256 .
  • the back side 2332 of the side support 233 is away from the opposite ends of the side of the middle support 231, and guide sliders 2333 protrude respectively.
  • Each guide slider 2333 is an arc-shaped block, and the first arc groove 2334 is opened on the guide slider The side of 2333.
  • One end of the first arc groove 2334 runs through the surface of the guide slider 2333 facing away from the middle support member 231, and the opposite end of the first arc groove 2334 extends to the back surface 2332 of the side support member 233, and the first arc groove 2334 faces away from One side of the back surface 2332 is curved, specifically, the middle part of the first arc groove 2334 is curved to a side away from the back surface 2332 .
  • the surface of the guide slider 2333 facing away from the middle support member 231 is coplanar with the side surface of the side support member 233 away from the side support member 231, and the two sides facing the two guide sliders 2333 are respectively provided with first
  • the arc grooves 2334 and the axis lines of the two first arc grooves 2334 are collinear, and one end of the first arc grooves 2334 runs through the surface of the guide slider 2333 facing away from the middle support member 231 .
  • the two sides of the two guide sliders 2333 facing away from each other are respectively provided with a first arc groove 2334, the axes of the two first arc grooves 2334 are collinear, and one end of the first arc groove 2334
  • the first arc groove 2334 is bent to the side away from the back surface 2332 , that is, the middle of the first arc groove 2334 is bent to the side away from the back surface 2332 .
  • a first arc groove 2334 is provided on one of the opposite side surfaces of one guide slider 2333, and a first arc groove is provided on one of the opposite two sides of the other guide slider 2333.
  • the axis lines of the two first arc grooves 2334 are collinear.
  • a sliding guide block 2335 protrudes from the back side 2332 of the side support member 233 near the middle support member 231 , and the sliding guide block 2335 defines a sliding groove 2336 , and the sliding groove 2336 runs through two opposite sides of the sliding guiding block 2335 .
  • the chute 2336 extends obliquely to the side away from the middle support member 231, that is, the first end of the chute 2336 is close to the back 2332, the opposite second end of the chute 2336 is away from the back 2332, and the chute 2336 is from the first end to The second end is formed by extending obliquely.
  • the side of the side support 233 close to the middle support 231 is provided with three second spaced-out openings 2337, and the three second escape openings 2337 are connected with the guide slider 2313 and the two sides of the middle support 231 respectively. There is a one-to-one correspondence between the first escape openings 2317.
  • one end of the rotating member 254 away from the connecting member 256 is rotatably connected to the positioning seat 251, and the side of the side support 233 away from the middle supporting member 231 is rotatably connected to the connecting member 256; the linkage assembly 26 is connected Between the positioning seat 251 and the connecting piece 256 .
  • the side support 233 and the connecting piece 256 are rotatably connected through the cooperation between the first arc groove 2334 and the first arc rail 2562;
  • the cooperation of the two circular arc rails 2541 is rotatably connected.
  • the connecting piece 256 is provided with a first arcuate rail 2562 corresponding to the first arcuate groove 2334 of the side support member 233, and the first arcuate rail 2562 is rotatably inserted in the first arcuate groove 2334,
  • the axis line of the first arc groove 2334 is collinear with the axis line of the first arc track 2562, and the first circle
  • the axis of the arc track 2562 is collinear with the axis of rotation between the side support member 233 and the connecting member 256 .
  • the positioning seat 251 is provided with a second circular arc groove 2511
  • the rotating member 254 is provided with a second circular arc rail 2541 corresponding to the second circular arc groove 2511, so that the connecting piece 256 and the positioning seat 251 are arranged along the second circular arc groove 2511.
  • the axis line of the second arc groove 2511 is collinear with the axis line of the second arc track 2541, and the axis line between the axis line of the second arc track 2541 and the rotation axis between the rotating member 254 and the positioning seat 251
  • the heart lines are collinear.
  • the positioning seat 251 is a rectangular block, which includes a back side with an arc-shaped cross section and a front side 2510 facing away from the back side, and the opposite sides of the middle part of the front side 2510 of the positioning seat 251 are respectively provided with second arc grooves. 2511.
  • the opposite side walls of the positioning seat 251 are respectively provided with avoiding grooves 2513 , the avoiding grooves 2513 run through the front surface 2510 of the positioning seat 251 , and the two avoiding grooves 2513 pass through the two second circular arc grooves 2511 respectively.
  • the front of the positioning seat 251 is provided with a plurality of through holes 2514 around the two second arc grooves 2511 .
  • the front of the positioning seat 251 is respectively provided with through holes 2514 at the four corners of the second arc groove 2511 .
  • One end surface of the positioning base 251 defines two positioning holes 2516 at intervals.
  • the rotating member 254 includes a second arc rail 2541, a connecting portion 2542, and a support portion 2543 connected between the second arc rail 2541 and the connecting portion 2542.
  • the second arc rail 2541 is used to rotatably connect to the positioning seat 251
  • the connection part 2542 is used for connecting the connection part 256 , the linkage part 264 and the side support part 233 .
  • the second arc-shaped track 2541 is an arc-shaped block, and the back of the arc-shaped block is used to slidably attach to the inner surface of the second arc-shaped groove 2511 .
  • An end of the connecting portion 2542 away from the second arc track 2541 is provided with a shaft hole 2544 along a direction parallel to the axis of the second arc track 2541 .
  • a first extension block 2545 protrudes from the side of the connecting portion 2542 facing the linkage 264 , and a first fixing hole 2546 is formed on the side of the first extension block 2545 facing away from the connecting portion 2542 away from the shaft hole 2544 .
  • a second fixing hole 2547 is formed on the side of the connecting portion 2542 facing away from the first extension block 2545 and close to the supporting portion 2543 ; the second fixing hole 2547 is located between the shaft hole 2544 and the first fixing hole 2546 .
  • the rotating part 254 also includes a first guide shaft 2540 and a guide post 2548, the first guide shaft 2540 is fixed on the rotating part 254, and the axis line of the first guide shaft 2540 is parallel to the axis of the first arc groove 2334 Wire.
  • one end of the first guide shaft 2540 is fixedly connected to the first fixing hole 2546
  • one end of the guide post 2548 is fixedly connected to the second fixing hole 2547 .
  • the first guide shaft 2540 can also be integrally formed on the rotating member 254 .
  • the supporting portion 2543 is an inclined bar, and opposite ends of the supporting portion 2543 are respectively connected to one end of the second circular arc rail 2541 and one end of the connecting portion 2542 .
  • the end surface of the connecting portion 2542 away from the second arc track 2541 forms an arc surface.
  • the second arc groove 2511 on the positioning seat 251 and the second arc rail 2541 on the rotating member 254 can be interchanged; for example, an arc groove can be provided on the second arc rail 2541,
  • the positioning seat 251 is provided with an arc rail corresponding to the arc groove, the arc rail is rotatably inserted in the arc groove, the axis line of the arc groove, the arc rail
  • the axis line, and the rotation axis line between the rotating member 254 and the positioning seat 251 are collinear.
  • the positioning seat 251 is provided with an arc groove on the side of the second arc groove 2511 , and the side of the second arc track 2541 of the rotating member 254 is protruded with an arc track corresponding to the arc slot.
  • a pair of arc grooves are provided on the opposite sides of the second arc groove 2511, and a pair of arc rails are protruded from the opposite sides of the second arc rail 2541 corresponding to the pair of arc grooves.
  • the arc rail 2541 When the arc rail 2541 is inserted into the second arc groove 2511, a pair of the arc rails are respectively inserted into a pair of the arc grooves; or one side of the second arc groove 2511 is provided with an arc groove, The second arc rail 2541 protrudes from the side of the arc groove corresponding to the arc rail. When the second arc rail 2541 is inserted into the second arc groove 2511 , the arc rail is inserted into the arc groove.
  • the connecting piece 256 is strip-shaped. Specifically, the connecting piece 256 includes a rectangular connecting plate 2560 , and first circular arc rails 2562 are respectively provided at opposite ends of the connecting plate 2560 . Support plates 2563 protrude from opposite ends of the connecting plate 2560 facing the surface of the side support member 233 , and the first circular arc rail 2562 protrudes from an end of the supporting plate 2563 away from the connecting plate 2560 . In this embodiment, first circular arc rails 2562 protrude from the two side surfaces of the two supporting plates 2563 facing away from each other. Inserted in the first circular arc slot 2334 of the side support member 233 .
  • first circular arc rails 2562 protrude from opposite side surfaces of the two support plates 2563 respectively, and the axis lines of the two first circular arc rails 2562 are collinear, and the two first circular arc rails 2562 can respectively The two first arc grooves 2334 are rotatably accommodated.
  • a first arc track 2562 is provided on one of the opposite side surfaces of one support plate 2563, and a first arc track 2562 is provided on one of the opposite two sides of the other support plate 2563,
  • the axes of the two first arc rails 2562 are collinear, and the two first arc rails 2562 are respectively rotatably accommodated in the two first arc grooves 2334 .
  • the side support 233 is provided with a first arc track
  • the connecting piece 256 is provided with a first arc groove corresponding to the first arc track; specifically, the guide slide of the side support 233
  • the block 2333 is protruded with a first arc track
  • the support plate 2563 of the connector 256 is provided with a first arc groove corresponding to the first arc track, and the first arc track is rotatably accommodated in the in the first arc groove.
  • a sliding guide part 2565 protrudes from the connecting part 256 close to the linkage part 264 , and the second arc-shaped groove 2561 is disposed on the sliding guide part 2565 .
  • one end of the connecting plate 2560 facing the surface of the side support member 233 protrudes from a guide sliding portion 2565 , and the other end protrudes from two lugs 2566 spaced apart from each other.
  • the sliding guide part 2565 is a sliding guide block extending from the connecting plate 2560 to one side of the rotating member 254 , and the second arc-shaped groove 2561 runs through two opposite sides of the sliding guide block.
  • the second arc-shaped groove 2561 includes a first positioning section 2561a away from the positioning seat 251, a second positioning section 2561b close to the positioning seat 251, and a sliding guide section 2561c between the first positioning section 2561a and the second positioning section 2561b;
  • the first positioning section 2561a, the sliding guide section 2561c and the second positioning section 2561b communicate with each other.
  • the sliding guide section 2561c of the second arc-shaped groove 2561 is bent toward the side close to the side support 233, that is, the middle part of the slide guide section 2561c of the second arc-shaped groove 2561 is bent towards the side of the side support 233. Curved on one side.
  • connection plate 2560 The ends of the two lugs 2566 away from the connection plate 2560 form an arc surface, a first connection opening 2566a is formed between the two lugs 2566 , and a connection hole 2566b is formed along the length direction of the connection plate 2560 on the two lugs 2566 .
  • a second connection opening 2565 a is formed between the sliding guide part 2565 and its adjacent lug 2566 , and a third connection opening 2563 a is formed between the sliding guide part 2565 and its adjacent support plate 2563 .
  • the connecting piece 256 also includes a connecting shaft 2567, which is used to be plugged into the connecting hole 2566b.
  • the linkage assembly 26 further includes a gear assembly 265 located between the two linkages 264 and two rotating shafts 266 .
  • the two linkages 264 are respectively rotatably connected to the two rotating shafts 266 .
  • the linkage base 261 is provided with a connecting shaft 2611 along the direction parallel to the rotation axis 266 , the gear assembly 265 is disposed on the connecting shaft 2611 , and the end of each linkage member 264 away from the connecting member 256 is provided with a first gear 2645 meshing with the gear assembly 265 .
  • the linkage seat 261 includes a fixing bar 2610 and two connecting shafts 2611 disposed on the fixing bar 2610 and spaced apart from each other.
  • the fixing bar 2610 includes a first fixing block 2612 in the center and two second fixing blocks 2613 at two opposite ends of the first fixing block 2612 .
  • the first fixing block 2612 is provided with two connecting holes perpendicular to the length direction of the fixing bar 2610 at intervals, and the middle parts of the two connecting shafts 2611 are respectively fixedly inserted into the two connecting holes of the first fixing block 2612 .
  • a central portion of the second fixing block 2613 defines a shaft hole 2615 along a direction parallel to the axis of the connecting shaft 2611 .
  • the linkage 264 includes a first sleeve 2642 and a connecting rod 2643 connected to the outer peripheral wall of the first sleeve 2642.
  • the outer peripheral wall of the first sleeve 2642 is provided with a first gear 2645 engaged with the gear assembly 265.
  • the connecting rod 2643 is used for The rotating part 254 and the connecting part 256 are connected.
  • the rotation angle range of the teeth of the first gear 2645 along the circumferential direction of the first sleeve 2642 is greater than 90 degrees and less than 180 degrees, that is, the first sleeve 2642 is greater than 1/4 and less than half
  • a first gear 2645 is provided on the outer peripheral wall.
  • the second guide shaft 2641 is fixed on the linkage 264.
  • the end of the connecting rod 2643 away from the first sleeve 2642 is provided with a fixing hole 2646 along the direction parallel to the axis of the first gear 2645.
  • the second guide shaft One end of the shaft 2641 is fixed in the fixing hole 2646 .
  • the first arc-shaped groove 2640 is provided on the side of the linkage 264 facing the rotating member 254; in this embodiment, the side of the connecting rod 2643 facing the rotating member 254 protrudes from the second extending block 2647, and the second extending block 2647 is away from the connecting rod
  • the side of 2643 is provided with a first arc-shaped groove 2640 .
  • the first arc groove 2640 includes a first positioning section 2640a close to the first sleeve 2642, a second positioning section 2640b away from the first sleeve 2642, and a guide between the first positioning section 2640a and the second positioning section 2640b.
  • the sliding section 2640c; the first positioning section 2640a, the guide sliding section 2640c and the second positioning section 2640b communicate with each other.
  • the sliding guide section 2640c of the first arc-shaped groove 2640 is bent toward the side away from the side support 233 , that is, the middle part of the slide guide section 2640c of the first arc-shaped groove 2640 is bent away from the side of the side support 233 . Curved on one side.
  • Each linkage member 264 is connected with a push member 271 , specifically, the push member 271 is a sleeve connected to an end of the first sleeve 2642 away from the linkage seat 261 .
  • the resisting member 271 includes a first cam 2710 , and the first cam 2710 is disposed on the end surface of the sleeve away from the linkage seat 261 .
  • the first cam 2710 is sleeved on the rotating shaft 266, the axis of the first cam 2710 is coaxial with the first sleeve 2642, the axis of the first gear 2645 is collinear with the axis of the first sleeve 2642 .
  • the first cam 2710 includes a concavo-convex surface located at one end of the sleeve, the concavo-convex surface includes a first protrusion 2712 and a first depression 2714, and the first protrusion 2712 and the first depression 2714 extend along the sleeve.
  • the cylinders are arranged at intervals in sequence in the circumferential direction.
  • the quantity of the first protruding part 2714 and the quantity of the first recessed part 2715 can be set according to needs, as the first cam 2710 can comprise a first protruding part 2714 and a first recessed part 2715, two first protruding parts 2714 and two first recesses 2715, three first protrusions 2714 and three first recesses 2715, or four first protrusions 2714 and four first recesses 2715, etc.
  • the first cam 2710 includes three first protrusions 2712 and three first depressions 2714 arranged at intervals along the circumference of the sleeve.
  • the gear combination 265 includes two second gears 2652 meshing with each other.
  • the first gears 2645 of the two linkages 264 mesh with the two second gears 2652 respectively.
  • the diameter of the pitch circle of the second gear 2652 is smaller than that of the first gear 2645.
  • the diameter of the pitch circle, and the number of teeth surrounding the second gear 2652 is less than the number of teeth surrounding the first gear 2645 .
  • the linkage assembly 26 further includes two pairs of linkage elements and two gear assemblies 265 , and a gear assembly 265 is disposed between each pair of linkage elements; It should be noted that one pair of linkages 264 and the corresponding gear combination 265 and the other pair of linkages 264a and the corresponding gear combination 265 are respectively arranged on opposite sides of the linkage seat 261, wherein the structure of the linkage 264a is the same as that of the linkage 264 is similar in structure, the difference is that the linkage 264a omits the second extension block 2647 and the first arc-shaped groove 2640 on the basis of the linkage 264 .
  • the linkage assembly 26 may also only include a pair of linkage elements 264 and a gear assembly 265 disposed between the pair of linkage elements 264 .
  • the rotating shaft 266 includes a shaft body 2660 and a positioning cover 2662 located at one end of the shaft body 2660 .
  • the end of the shaft body 2660 away from the positioning cover 2662 is provided with a slot 2663 .
  • the locking groove 2663 is located on the outer peripheral wall of the shaft body 2660 and forms a circle along the circumference of the shaft body 2660 .
  • the limiting mechanism 27 includes the resisting member 271, the resisting member 273 and the elastic member 274 which are arranged on the linkage members 264, 264a, and the elastic member 274 provides the resisting member 273 and the resisting member 271
  • the rotating mechanism 253 rotates relative to the positioning seat 251 through the linkage mechanism 26
  • the resisting member 271 rotates relative to the resisting member 273
  • the elastic member 274 is elastically deformed by elastic extrusion
  • the frictional resistance between the resisting pieces 273 makes the linking pieces 264 , 264 a positioned relative to the linking seat 261 , so that the side supporting piece 233 is positioned at a specific angle relative to the middle supporting piece 231 .
  • the range of the specific angle is that the included angle between the two side supports 233 is 70°-130°, specifically, when the two side supports 233 of the rotating shaft device 22 interact with each other through the rotating assembly 25 and the linkage assembly 26 When they are unfolded synchronously or folded synchronously to equal to or greater than 70 degrees and less than or equal to 130 degrees, the friction between the push piece 271 and the support piece 273 will help the two side support pieces 233 to be positioned, that is, in the absence of external force The lower two side supports 233 do not rotate relative to each other.
  • the resisting member 273 includes a second cam 2730 , the first cam 2710 and the second cam 2730 are rotatably resisted by each other, and the elastic member 274 elastically resists the resisting member 273 .
  • the first cam 2710 rotates relative to the second cam 2730
  • the first cam 2710 rotationally resists the sliding of the second cam 2730 away from or close to the linkage seat 261
  • the elastic member 274 is squeezed, and the first cam 2710 and
  • the frictional resistance between the second cams 2730 can limit the resisting member 271 to a specific angle relative to the resisting member 273 .
  • the diameter of the pitch circle of the first gear 2645 is increased through the two second gears 2652 arranged between the two rotating shafts 266, thereby increasing
  • the larger outer diameter of the first cam 2710 provides greater friction torque between the first cam 2710 and the second cam 2730 , and reduces fatigue wear of the first cam 2710 , thus prolonging the service life of the first cam 2710 .
  • a central portion of the second gear 2652 defines a shaft hole 2654 along its axial direction.
  • the resisting member 273 includes a connecting portion 2732 and two second cams 2730 disposed at opposite ends of the connecting portion 2732, that is, the two second cams 2730 are located at opposite ends of the connecting portion 2732, and the two second cams 2730 is respectively sleeved on the two rotating shafts 266 slidably.
  • the ends of the two linkages 264 away from the first cam 2710 are respectively connected to the two connecting pieces 256 and the two rotating pieces 254, and the ends of the two linkages 264a away from the first cam 2710 are respectively connected to the two connecting pieces 256; 264, 264a rotate with the connecting piece 256 and the rotating piece 254 along the rotating shaft 266 relative to the linkage seat 261 to drive the first cam 2710 to rotate relative to the second cam 2730, and the resisting member 273 can slide along the axial direction of the rotating shaft 266 .
  • the second cam 2730 includes a circular sleeve and a concave-convex surface provided at one end of the sleeve, the concave-convex surface includes a second protrusion 2734 and a second depression 2735, the second protrusion 2734 and The second recesses 2735 are arranged at intervals along the circumference of the sleeve;
  • the number of 2715 and the number of the first protrusions 2714 are consistent, so that the first protrusions 2714 cooperate with the second recesses 2735 , and the second protrusions 2734 cooperate with the first recesses 2715 .
  • the connecting portion 2732 is provided with two spaced guide sliding holes 2737 along the axial direction of the sleeve of the second cam 2730 .
  • the limit mechanism 27 includes two resisting pieces 273 and two elastic pieces 274, wherein the two second cams 2730 of the resisting pieces 273 are respectively connected with the first cams 2710 on the two linkage pieces 264.
  • the two second cams 2730 of the other abutting member 273 cooperate with the first cams 2710 on the two linkage members 264 respectively.
  • the elastic member 2731 is a spring sheathed on the rotating shaft 266 .
  • the limit mechanism 27 also includes a positioning piece 275 and a washer 277 located at the end of the rotating shaft 266 away from the push piece 271.
  • the positioning piece 275 is used to position the elastic piece 2731 on the rotating shaft 266.
  • the washer 277 is sleeved on the rotating shaft 266 and located between the positioning member 275 and the elastic member 2731 .
  • the positioning piece 275 includes a positioning piece 2751 and two buckles 2755 disposed at opposite ends of the positioning piece 2751.
  • the opposite ends of the positioning piece 2751 are formed as arc surfaces, and the buckles 2755 are C-shaped snap rings.
  • the opposite end surfaces of the gasket 277 are formed as circular arc surfaces, and the opposite ends of the gasket 277 are respectively provided with through holes 2772 .
  • the rotating shaft device 22 further includes a back cover 28 , and the positioning seat 251 and the linkage seat 261 are connected to the back cover 28 .
  • the back cover 28 is a bar-shaped frame, and the back cover 28 has a receiving slot 280 , the positioning seat 251 and the linkage seat 261 are accommodated in the receiving slot 280 and fixedly connected to the back cover 28 .
  • the back cover 28 is provided with a first installation part (not shown in the figure) and a second installation part (not shown in the figure) on the inner surface of the receiving groove 280, and the positioning seat 251 is connected to the first installation part,
  • the linkage seat 261 is connected to the second installation portion.
  • the connection between the positioning seat 251 and the first installation part and the connection between the linkage seat 261 and the second installation part can be through but not limited to screw connection, clip connection or glue connection.
  • each rotating member 254 is aligned with the corresponding connecting hole 2566b, and the first extension block 2545 of each rotating member 254 is close to the guide slide portion 2565 of the connecting member 256;
  • the connecting shaft 2567 is inserted into the shaft In the hole 2544 and the connecting hole 2566b, the rotating member 254 is rotatably connected to the connecting member 256 along the connecting shaft 2567;
  • one end of the two first guide shafts 2540 is respectively inserted into the first fixing holes of the two rotating members 254 2546, make the other end of the first guide shaft 2540 protrude from the rotating part 254; insert one end of the two guide posts 2548 into the second fixing holes 2547 of the two rotating parts 254 respectively, so that the other end of the guide post 2548
  • the turning member 254 protrudes.
  • the two gear combinations 265 are respectively assembled on the opposite sides of the linkage seat 261, specifically, the two gear combinations 265 are respectively placed on the opposite sides of the linkage seat 261, and the second gear 2652 of each gear combination 265 sets Connected to the connecting shaft 2611, that is, each connecting shaft 2611 is inserted into the shaft hole 2654 of the corresponding second gear 2652; a pair of linkages 264 are placed on opposite sides of one of the gear combinations 265, and the first linkage of the linkage 264 A gear 2645 meshes with the second gear 2652; another pair of linkages 264a is placed on the opposite sides of another gear combination 265, and the first gear 2645 of the linkage 264a meshes with the second gear 2652; at this time, each The lumen of the first sleeve 2642 is aligned with the corresponding shaft hole 2615 .
  • the two abutting pieces 273 are respectively matched with two pairs of linkages, specifically, the two second cams 2730 of one of the abutting pieces 273 are respectively matched with the first cams 2710 of a pair of linkages 264, and the other abutment
  • the two second cams 2730 of the holder 273 respectively cooperate with the first cams 2710 of the other pair of linkages 264a.
  • the first protruding part 2714 is accommodated in the second concave part 2735
  • the second protruding part 2734 is accommodated in the second concave part 2735.
  • the connecting shaft 2611 is inserted into the corresponding sliding hole 2737 .
  • the two elastic members 274 are respectively sleeved on the ends of the two rotating shafts 266 away from the positioning cover 2662; The ends of the positioning cover 2662 are respectively inserted into the two through holes 2772 of the spacer 277 .
  • the two buckles 2755 are engaged with the slots 2663 of the two rotating shafts 266 respectively.
  • the two buckles 2755 respectively push against the washer 277, the resisting member 273 and the elastic member 274 are sleeved on the rotating shaft 266, the resisting member 273 is located between the resisting member 271 and the elastic member 274, and the elastic member 274 is away from One end of the resisting member 273 elastically abuts against the positioning member 275, and the elastic member 274 is in a squeezed state, that is, the elastic member 274 has a pre-elastic force.
  • the second circular arc rails 2541 of the two rotating mechanisms 253 are respectively placed in the two second circular arc grooves 2511 of the positioning seat 251, the linkage assembly 26 is placed between the two connecting pieces 256 of the rotating assembly 25, and the rotating shaft 266 is connected to the positioning seat 251 at the end far away from the elastic member 274, that is, the positioning covers 2662 of the two rotating shafts 266 of the linkage assembly 26 are respectively inserted into the two positioning holes 2516 of the positioning seat 251, and the two first guide sliding shafts 2540
  • the ends away from the rotating part 254 are respectively inserted into the first arc-shaped grooves 2640 of a pair of linkage parts 264;
  • the ends of the connecting rod 2643 of the other pair of linkages 264a away from the first sleeve 2642 are respectively accommodated in the third connecting ports 2563a of the two connecting parts 256;
  • the two guide shafts 2641 pass through the second arc-shaped grooves 2561 of the two connecting members 256 respectively, and the
  • one of the arc surfaces of the second arc rail 2541 is rotatably attached to the inner surface of the second arc groove 2511, and the second arc rail 2541 passes through the second arc rail 2541
  • the relative positioning seat 251 can rotate; the two pairs of linkages 264 are respectively facing the first avoidance opening 2317 of the middle support 231 . Then place the two side supports 233 on opposite sides of the middle support 231, and the two first circular arc rails 2562 of each connector 256 are respectively inserted into the two first circular arcs of the corresponding side supports 233.
  • the side support 233 and the middle support 231 are in a flattened state, the side support 233 and the middle support 231 are arranged side by side, and the first circular arc rail 2562 is rotatably accommodated in the corresponding first circular arc groove 2334 Among them, the guide sliding column 2548 is located at the second end of the slide groove 2336, the first guide sliding shaft 2540 is located at the first positioning section 2640a of the first arc-shaped groove 2640, and the second guide sliding shaft 2641 is located at the first positioning section 2640a of the second arc-shaped groove 2561. A positioning segment 2561a.
  • the first arc-shaped groove 2640 bends to the side away from the side support 233, that is, the guide section 2640c of the first arc-shaped groove 2640 bends to the side away from the side support 233;
  • the second arc-shaped groove 2561 is bent to the side close to the side support 233, that is, the guide section 2561c of the second arc-shaped groove 2561 is bent to the side away from the side support 233;
  • the first arc-shaped groove 2640 is compared with the second arc-shaped The slot 2561 is closer to the side support 233 .
  • the axis of rotation between the rotating member 254 and the positioning seat 251 is parallel to the axis of rotation between the side support 233 and the connecting member 256; the axis of rotation between the rotating member 254 and the positioning seat 251 is parallel to the linkage The axis of rotation between piece 264 and linkage seat 261;
  • the axis line is closer to the support mechanism 23 than the axis line of the rotating shaft 266; the axis line of the first guide shaft 2540, the axis line of the guide column 2548, the axis line of the connecting shaft 2567, the second guide shaft
  • the axis of the shaft 2641 and the axis of the rotating shaft 266 are parallel to each other.
  • the connecting part 256 drives the rotating part 254 to rotate relative to the positioning seat 251
  • the linkage parts 264, 264a rotate relative to the linkage seat 261
  • the rotating mechanism 253 drives the side support part 233 to rotate and slide relative to the positioning seat 251, so that the side support The part 233 and the middle supporting part 231 are bent or unfolded synchronously.
  • the rotating member 254 rotates relative to the positioning seat 251 through the second arc rail 2541 and the second arc groove 2511; the linkage member 264 rotates along the corresponding rotation axis 266 with the rotation mechanism 253, so that the linkage members 264, 264a
  • the first gear 2645 of the first gear 2645 is rotatably meshed with the corresponding second gear 2652 to realize the synchronous rotation of the two pairs of linkages of the limit mechanism 27.
  • the first guide shaft 2540 slides and rotates in the first arc-shaped groove 2640, and the second The guide shaft 2641 slides and rotates in the second arc groove 2561; the first arc rail 2562 of the connector 256 is rotationally connected to the corresponding first arc groove 2334, and the guide post 2548 slides in the slide groove 2336 and rotates. Rotate to realize the mutual bending or mutual unfolding of the side support 233 and the middle support 231 .
  • the rotation of the linkages 264, 264a drives the corresponding first gear 2645 to rotate, and the gear combination 265 drives the corresponding two first gears 2645 to rotate synchronously, and the synchronously rotating first gear 2645 drives the corresponding two linkages 264 to move closer to each other synchronously
  • the connecting piece 256 drives the first circular arc rail 2562 to be rotationally connected to the corresponding first circular arc groove 2334, and the guide column 2548 on the rotating piece 254 slides and rotates from the second end in the corresponding chute 2336 to the first end; at the same time, the linkage members on opposite sides of the linkage seat 261 rotate synchronously with respect to the linkage seat 261 and move closer to each other, so as to drive the two side support members 233 to move closer to each other synchronously until the two side support members 233 and the middle part
  • the support member 231 encloses a water drop shape in cross section.
  • the first guide shaft 2540 approaches the end of the middle support member 231 from the first arc-shaped groove 2640 (that is, the second end of the first guide shaft 2540 A positioning section 2640a) slides to the end away from the middle support 231 (that is, the second positioning section 2640b of the first guide shaft 2540), and the second guide shaft 2641 is away from the end of the middle support 231 from the second arc-shaped groove 2561 (that is, the first positioning section 2561 a of the second guide shaft 2641 ) slides to one end close to the middle support member 231 (the second positioning section 2561 b of the second guide shaft 2641 ).
  • the guide column 2548 slides from the end of the sliding groove 2336 far away from the middle supporting member 231 (that is, the second end of the sliding groove) to the end close to the middle supporting member 231 (that is, the first end of the sliding groove).
  • the axial force between the first cam 2710 and the corresponding second cam 2730 on each rotating shaft 266 is equal to the elastic force of the elastic member 274; the frictional resistance between the first cam 2710 and the second cam 2730 can make both sides
  • the upper support member 233 is limited to a specific angle between 70 degrees and 130 degrees.
  • the two connecting pieces 256 can be rotated together in the opposite direction, and each connecting piece 256 is opposite to the corresponding second circular arc groove 2511 of the positioning seat 251 through the second circular arc track 2541 of the corresponding rotating piece 254 Rotate to drive the linkages 264, 264a of the limit mechanism 27 to rotate along the corresponding rotating shaft 266; at the same time, the two connecting parts 256 synchronously drive the first circular arc rail 2562 to be rotationally connected to the corresponding first side support 233 In the arc groove 2334, the guide column 2548 on the rotating member 254 slides and rotates in the sliding groove 2336 of the corresponding side support member 233, and the first guide shaft 2540 on the rotating member 254 is in the corresponding first arc shape.
  • one of the connecting parts 256 is unfolded away from the other connecting part 256 relative to the positioning seat 251, and the one of the connecting parts 256 drives the second circular arc track of the rotating part 254 2541 rotates in the second arc groove 2511 of the positioning seat 251, the first guide shaft 2540 of the rotating member 254 slides and rotates in the corresponding first arc groove 2640, and the first guide shaft 2540 moves from the second positioning
  • the segment 2640b moves to the first positioning segment 2640a; the second guide shaft 2641 on the linkage 264 rotates and slides in the corresponding second arc-shaped groove 2561, and the second guide shaft 2641 moves from the second positioning segment 2561b to
  • the first positioning section 2561 a is used to drive the corresponding linkage members 264 , 264 a to rotate along the rotation axis 266 .
  • the connecting piece 256 drives the first circular arc rail 2562 to be rotatably connected to the corresponding first circular arc groove 2334, and the guide post 2548 on the rotating piece 254 slides from the first end in the corresponding chute 2336 and rotates to
  • the rotating mechanism 253 on the opposite side of the limit mechanism 27 rotates synchronously with respect to the positioning seat 251 and moves away from each other, so as to drive the two side support members 233 to start mutually synchronously until the two side support members 233 It is flattened with the middle supporting member 231 .
  • the first guide shaft 2540 is away from the end of the middle support 231 from the first arc-shaped groove 2640 (that is, the second end of the first guide shaft 2540).
  • the second positioning section 2640b slides to an end close to the middle support member 231 (that is, the first positioning section 2640a of the first guide shaft 2540), and the second guide slide shaft 2641 approaches the end of the middle support member 231 from the second arc groove 2561 (the second positioning section 2561b of the second guide shaft 2641) slides to the end away from the middle support member 231 (that is, the first positioning section 2561a of the second guide shaft 2641); the guide post 2548 is supported from the chute 2336 near the middle One end of the member 231 (that is, the first end of the chute) slides to the end (that is, the second end of the chute) away from the middle supporting member 231 .
  • the axial force on the first cam 2710 and the second cam 2730 on each rotating shaft 266 is equal to the elastic force of the elastic member 274; the frictional resistance between the first cam 2710 and the second cam 2730 can make the two side supports 233 is limited to a specific angle between 130 degrees and 70 degrees.
  • the two connecting pieces 256 can be rotated together in a direction away from each other, and each connecting piece 256 drives the second arc track 2541 of the rotating piece 254 to face along the second arc groove 2511 of the positioning seat 251 Rotate, the first guide shaft 2540 of the rotating member 254 slides and rotates in the corresponding first arc-shaped groove 2640, and the first guide shaft 2540 moves from the second positioning section 2640b to the first positioning section 2640a; the linkage 264 The second guide shaft 2641 on the top rotates and slides in the corresponding second arc-shaped groove 2561, and the second guide shaft 2641 moves from the second positioning section 2561b to the first positioning section 2561a to drive the corresponding linkage 264 , 264a rotate along the rotating shaft 266; at the same time, the connecting piece 256 drives the first circular arc rail 2562 to be rotationally connected to the corresponding first circular arc groove 2334, and the guide sliding post 2548 on the rotating piece 254 is in the corresponding sliding groove 2336 Slide from
  • the first guide shaft 2540 on the rotating member 254 and the first arc-shaped groove 2640 on the linkage member 264 can be interchanged, that is, the first arc-shaped groove 2640 can be set on the rotating member 254 facing the linkage
  • the first guide shaft 2540 can be fixed to the linkage member 264 on the side of the member 264 , and the first guide shaft 2540 is inserted in the first arc-shaped groove 2640 to slide and rotate.
  • a first arc-shaped groove is provided on the side of the connecting piece 256 facing the linkage piece 264, and a first guide shaft that can be movably inserted in the first arc-shaped groove is provided on the linkage piece 264, During the bending or unfolding process of the rotating shaft device 22, the first guide shaft slides and rotates in the first arc-shaped groove.
  • the second guide shaft 2641 on the linkage 264 and the second arc-shaped groove 2561 on the connecting piece 256 can be interchanged, that is, the second arc-shaped groove 2561 can be set on the linkage 264, and the second The guide shaft 2641 can be fixed on the guide part 2565 , and the second guide shaft 2641 is slidably and rotatably inserted in the second arc-shaped groove 2561 .
  • a second arc-shaped groove is provided on the side of the linkage 264 facing the guide slide portion 2565, and a second guide slide that can be movably inserted in the second arc-shaped groove is provided on the connecting piece 256.
  • the sliding guide column 2548 on the rotating member 254 and the slide groove 2336 on the side support member 233 can be interchanged.
  • Fig. 1-Fig. 4 Please refer to Fig. 1-Fig. 4 together, place the installed rotating shaft device 22 between the two frame bodies 21, and accommodate the connectors 256 on opposite sides of the back cover 28 into the receiving grooves of the two frame bodies 21 respectively. 216, and the two connecting pieces 256 are fixedly connected to the two frame bodies 21 respectively. At this time, the fronts 211 of the two frames 21 , the fronts of the two side supports 233 and the front 2311 of the middle support 231 are in the same plane.
  • the back of the flexible member 30 is connected to the front 2331 of the two frames 21 and the front 2311 of the support mechanism 23, the bendable area 31 is facing the support mechanism 23, and the two non-bending areas 33 are respectively facing the sides of the two frames 21. front.
  • the middle support member 231 is flush with the two side support members 233, and the first cam 2710 and the second cam 2730 are attached to each other to limit the support mechanism 23 to maintain the flattened state;
  • the front of the support mechanism 23 is a complete surface, therefore, the flexible part 30 will not be impacted by the step difference when it is flattened, and the flexible part 30 will not have bad problems such as colored spots and bright spots, so as to ensure the reliability of the flexible part 30.
  • the rotating part 254 and the linkage part 264 are connected through the first arc groove and the first guide shaft, and the linkage part 264 and the connecting part 256 are connected through the first
  • the two arc-shaped grooves are mated with the second guide shaft, and the bending direction of the first arc-shaped groove is opposite to that of the second arc-shaped groove. Therefore, the connection between the components in the rotating shaft device 22 can be made more compact, thereby reducing
  • the overall width of the rotating shaft device 22 is reduced to reduce the occupied internal space of the housing 20, which is beneficial to the layout of other components such as the main board or battery.
  • FIGS. 29-35 Please refer to FIGS. 29-35 together.
  • a bending force is applied to at least one of the two frames 21 of the electronic device 100, so that the rotating mechanisms 253 connected to the two frames 21 move toward each other.
  • the bending of the rotating shaft device 22 is realized through the linkage assembly 26 , and the bendable area 31 of the flexible member 30 bends along with the supporting mechanism 23 .
  • the one of the frame bodies 21 drives the corresponding rotating member 254 to rotate to the side close to the flexible member 30 relative to the positioning seat 251, and the second of the rotating member 254
  • the arc rail 2541 rotates relative to the second arc groove 2511 of the positioning seat 251
  • the first guide shaft 2540 slides and rotates in the corresponding first arc groove 2640
  • the first guide shaft 2540 moves from the first positioning section 2640a moves to the second positioning section 2640b
  • the second guide sliding shaft 2641 rotates and slides in the corresponding second arc-shaped groove 2561
  • the second guiding sliding shaft 2641 moves from the first positioning section 2561a to the second positioning section 2561b
  • the first gear 2645 drives the corresponding two linkages 264 to approach each other synchronously.
  • the connecting piece 256 drives the first circular arc rail 2562 to be rotatably connected to the corresponding first circular arc groove 2334, and the guide slide column 2548 slides in the corresponding chute 2336 and rotates from the second end to the first end;
  • the rotating mechanism 253 on the opposite side of the limit mechanism 27 rotates synchronously with respect to the positioning seat 251 and moves closer to each other, so as to drive the two side support members 233 to move closer to each other synchronously, so that the rotating shaft device 22 is in a bent state;
  • the flexible member 30 can The bending area 31 is bent along with the shaft device 22 until the front surfaces of the two non-bending areas 33 of the flexible member 30 are attached to each other, and the bendable area 31 is bent into a drop shape, thereby realizing seamless folding of the electronic device 100 .
  • the friction torque between the first cam 2710 and the second cam 2730 on each rotating shaft 266 is greater than the rebound force of the flexible member 30, so that the two side support members 233 are relatively positioned at a specific angle. , so that the two frames 21 can be limited to a specific angle between 70 degrees and 130 degrees.
  • the bendable region 31 of the flexible member 30 is bent to form a drop shape, which reduces the duty cycle of the bendable region 31 after bending, thereby reducing the overall thickness of the electronic device 100 .
  • a bending force can also be applied to the two frame bodies 21 at the same time, and the two frame bodies 21 respectively drive the two rotating mechanisms 253 to rotate to the side close to the flexible member 30, and The bending of the electronic device 100 is realized through the rotating shaft device 22 .
  • one of the frame bodies 21 is pulled outward, so that the two rotating mechanisms 253 connected to the two frame bodies 21 are rotated away from each other.
  • a force of pulling outward is applied to one of the frame bodies 21 of the electronic device 100, and the one of the frame bodies 21 drives the corresponding rotating member 254 to rotate relative to the positioning seat 251 to the side away from the flexible member 30, and the rotating
  • the second arc track 2541 of the member 254 rotates relatively along the second arc groove 2511 of the positioning seat 251, the first guide shaft 2540 of the rotating member 254 slides and rotates in the corresponding first arc groove 2640, and the first The guide slide shaft 2540 moves from the second positioning section 2640b to the first positioning section 2640a; the second guide slide shaft 2641 on the linkage 264 rotates and slides in the corresponding second arc-shaped groove 2561, and the second guide slide shaft 2641 Move from the second positioning section 2561b to the first positioning section 2561a; to drive the corresponding linkage
  • the sum of the friction torque between the first cam 2710 and the second cam 2730 on each rotating shaft 266 is greater than the rebound force of the flexible member 30, so that the two side support members 233 are relatively positioned at The specific angle can limit the two frames 21 to a specific angle between 130 degrees and 70 degrees.
  • the two frames 21 can also be simultaneously applied with a force of pulling outwards, and the two frames 21 respectively drive the two rotating mechanisms 253 to move away from the flexible member 30.
  • the electronic device 100 can be unfolded through the rotating shaft device 22 and rotated sideways.
  • the rotating shaft device 22 of the electronic device 100 of the present invention realizes synchronous bending or unfolding through the rotating assembly 25 and the linkage assembly 26, since both the rotation piece 254 and the linkage piece 264 and between the linkage piece 264 and the connecting piece 256 pass through arc-shaped grooves Cooperate with the guide shaft, therefore, the connection between the components in the shaft device 22 can be made more compact, thereby reducing the overall width of the shaft device 22, reducing the internal space occupied by the housing 20, which is beneficial to other components such as the main board or battery secondly, because the elastic member 274 of the limit mechanism 27 can provide a larger axial force, so that there is a larger frictional torque between the first cam 2710 and the second cam 2730; therefore, by the first cam
  • the total frictional torque of the rotating shaft device 22 formed by the frictional torque between 2710 and the second cam 2730 is large enough to realize the bending limit of the electronic device 100 at a specific angle between 70 degrees and 130 degrees, and realize the complete machine.
  • the linkage assembly 26 of the shaft device 22 and the rotation assembly 25 are fixedly connected to the positioning hole 2516 of the positioning seat 251 through the rotation shaft 266, and the rotation member 254 and the linkage member 264 are axially connected through the first guide slide 2540.
  • 264 and the connecting piece 256 are connected through the second guide shaft 2641, the side support 233 and the rotating member 254 are connected through the guide column 2548, and the opposite ends of the side of the side support 233 away from the middle support 231 They are respectively connected with the connecting parts 256 , so that the structure of the rotating shaft device 22 is firm, and the overall strength of the electronic device 100 is improved.

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Abstract

一种转轴装置（22）、设有转轴装置（22）的折叠壳体（20）及电子设备（100），转轴装置（22）包括支撑机构（23）、转动组件（25）及联动组件（26），支撑机构（23）包括侧部支撑件（233）；转动组件（25）包括定位座（251）及转动机构（253），转动机构（253）包括转动件（254）及连接件（256），转动件（254）的一端转动地连接于定位座（251），转动件（254）相对的另一端转动地连接于连接件（256）；联动组件（26）包括联动座（261）及联动机构（263），联动机构（263）包括连接于联动座（261）相对两侧的联动件（264），联动件（264）的一端与对应的转动件（254）之间通过第一弧形槽（2640）与第一导滑轴（2540）的配合连接，联动件（264）的一端与对应的连接件（256）之间通过第二弧形槽（2561）与第二导滑轴（2641）的配合连接，侧部支撑件（233）与对应的连接件（256）之间转动连接，侧部支撑件（233）与对应的转动件（254）滑动连接；转动机构（253）相对于定位座（251）转动。

Description

转轴装置、折叠壳体及电子设备
本申请要求于2022年02月28日提交中国专利局、申请号为202210118640.7、申请名称为“转轴装置、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
本申请涉及柔性件支撑领域，尤其涉及一种支撑柔性件的转轴装置、设置有所述转轴装置的折叠壳体，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，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，折叠屏也越来越受到人们的喜爱。相关技术中的折叠屏一般均采用铰链机构支撑，然而目前大部分的铰链结构较为复杂，不满足量产需求。
发明内容
本申请提供的一种转轴装置，其包括支撑机构、转动组件及联动组件，支撑机构包括侧部支撑件；转动组件包括定位座及设于所述定位座相对两侧的转动机构，所述转动机构包括转动件及连接件，所述转动件的一端转动地连接于定位座，所述转动件相对的另一端转动地连接于所述连接件；所述联动组件包括联动座及设于所述联动座的联动机构，所述联动机构包括转动地连接于所述联动座相对两侧的联动件，所述联动件远离所述联动座的一端与对应的转动件之间通过第一弧形槽与第一导滑轴的配合连接，所述联动件远离所述联动座的一端与对应的连接件之间通过第二弧形槽与第二导滑轴的配合连接，所述侧部支撑件与对应的连接件之间转动连接，所述侧部支撑件与对应的转动件滑动连接；所述转动机构相对于所述定位座转动，以带动所述联动件相对于联动座转动以及带动侧部支撑件相对于所述定位座转动并滑动，以使两个所述侧部支撑件同步相互折弯或同步相互展开。
本申请还提供一种折叠壳体，其包括转轴装置及两个框体，所述转轴装置位于两个所述框体之间，两个所述框体分别连接于所述转轴装置的两个所述转动机构的连接件，所述框体带动所述转动机构相对于所述定位座转动，所述支撑机构随所述转动机构及联动机构实现同步折弯或展开。
本申请还提供一种电子设备，所述电子设备包括柔性件及折叠壳体，所述柔性件设置于所述折叠壳体上，所述柔性件随所述折叠壳体折弯或屏平。
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是本申请其中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件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中的折叠壳体的另一视角的立体结构示意图；
图5是图3中的转轴装置的立体结构分解示意图；
图6是图5中的转轴装置的另一视角的立体结构示意图；
图7是图5中的转轴装置的支撑机构、转动组件及助折组件的立体结构分解示意图；
图8是图7中的转轴装置的另一视角的立体结构示意图；
图9是图7中的转动组件和助折组件的立体结构分解示意图；
图10是图9中的转动组件和助折组件的另一视角的立体结构示意图；
图11是图3中的转轴装置的立体结构放大图；
图12-图17是图11中的转轴装置不同部分的立体剖视图；
图18是图1中的电子设备弯折成其中一角度的立体结构示意图；
图19是图18中的转轴装置的立体结构放大图；
图20是图19中的转轴装置的立体结构分解示意图；
图21-图26是图19中的转轴装置不同部分的剖视图；
图27是图1中的电子设备完全弯折状态的立体结构示意图；
图28是图27中的转轴装置的立体结构放大图；
图29是图28中的转轴装置的另一视角的立体结构示意图；
图30-图35是图27中的电子设备不同部分的剖视图。
具体实施方式
一种转轴装置，所述转轴装置包括：支撑机构，所述支撑机构包括侧部支撑件；
转动组件，所述转动组件包括定位座及设于所述定位座相对两侧的转动机构，所述转动机构包括转动件及连接件，所述转动件的一端转动地连接于定位座，所述转动件相对的另一端转动地连接于所述连接件；以及
联动组件，所述联动组件包括联动座及联动机构，所述联动机构包括转动地连接于所述联动座相对两侧的联动件，所述联动件远离所述联动座的一端与对应的转动件之间通过第一弧形槽与第一导滑轴的配合连接，所述联动件远离所述联动座的一端与对应的连接件之间通过第二弧形槽与第二导滑轴的配合连接，所述侧部支撑件与对应的连接件之间转动连接，所述侧部支撑件与对应的转动件滑动连接；所述转动机构相对于所述定位座转动，以带动所述联动件相对于联动座转动以及带动侧部支撑件相对于所述定位座转动并滑动，以使两个所述侧部支撑件同步相互折弯或同步相互展开。
所述第一弧形槽向远离所述侧部支撑件的一侧弯曲，所述第二弧形槽向靠近所述侧部支撑件的一侧弯曲，所述转轴装置在展平状态时，所述第一弧形槽相较于所述第二弧形槽更靠近所述侧部支撑件。
所述支撑机构还包括中部支撑件，两个所述侧部支撑件设于所述中部支撑件相对的两侧，所述中部支撑件及所述侧部支撑件用于支撑柔性件，所述侧部支撑件同步相互折弯过程中，所述第一导滑轴自所述第一弧形槽靠近所述中部支撑件的一端滑动至远离所述中部支撑件的一端，所述第二导滑轴自所述第二弧形槽远离所述中部支撑件的一端滑动至靠近所述中部支撑件的一端。
所述第一弧形槽设于所述联动件面朝所述转动件的侧面，所述第一导滑轴固定于所述转动件；或者所述第一弧形槽设于所述转动件面朝所述联动件的侧面，所述第一导滑轴固定于所述联动件，所述第一导滑轴滑动并转动地插设于所述第一弧形槽。
所述连接件靠近所述联动件处凸设导滑部，所述第二弧形槽设于所述导滑部，所述第二导滑轴固定于所述联动件；或者所述第二弧形槽设于所述联动件，所述第二导滑轴固定于所述导滑部；所述第二导滑轴滑动并转动地插设于所述第二弧形槽。
所述第一导滑轴的轴心线平行于所述第二导滑轴的轴心线。
所述侧部支撑件远离所述中部支撑件的一侧与所述连接件之间通过第一圆弧槽与第一圆弧轨的配合连接，所述第一圆弧槽的轴心线与所述侧部支撑件与所述连接件之间的转动轴心线共线；所述侧部支撑件靠近所述中部支撑件的一侧与所述转动件之间通过滑槽与导滑柱的配合连接。
所述滑槽向远离所述中部支撑件的一侧倾斜延伸，所述导滑柱的轴心线平行于所述第一圆弧槽的轴心线。
所述定位座与所述转动件之间通过第二圆弧槽与第二圆弧轨的配合连接，所述第二圆弧轨的轴心线与所述转动件与所述定位座之间的转动轴心线共线。
所述转动件远离所述连接件的一端设于所述中部支撑件与所述定位座之间，所述中部支撑件设有对应所述第二圆弧轨的圆弧导面。
所述转动件与所述定位座之间的转动轴心线平行于所述联动件与所述联动座之间的转动轴心线。
所述联动机构还包括两个转动轴及位于所述联动件之间的齿轮组合，两个所述联动件分别连接于两个所述转动轴，所述联动座沿平行于所述转动轴的方向设有连接轴，所述齿轮组合设置于所述连接轴，每一联动件远离所述连接件的端部设有啮合所述齿轮组合的第一齿轮。
所述转轴装置还包括限位机构，所述限位机构包括设于所述联动件的抵推件、抵持件及弹性件，所述弹性件提供所述抵持件与所述抵推件之间相互抵顶的弹力，所述转动机构通过所述联动机构相对于所述定位座转动，所述抵推件相对于所述抵持件转动，所述弹性件被弹性挤压发生弹性变形，所述抵推件与所述抵持件之间的摩擦阻力使所述联动件相对于所述联动座定位，以实现所述侧部支撑件相对于所述中部支撑件定位在特定角度。
所述抵推件包括第一凸轮，所述抵持件包括第二凸轮，所述第一凸轮与所述第二凸轮相互可转动抵持，所述弹性件弹性抵推所述抵持件。
所述第一凸轮与所述第二凸轮之间的摩擦扭力大于所述柔性件的反弹力，以使两个所述侧部支撑件之间定位在特定角度。
所述抵持件及所述弹性件套设于所述转动轴，所述限位机构还包括设于所述转动轴远离所述抵推件一端的定位件，所述抵持件位于所述抵推件与所述弹性件之间，所述弹性件远离所述抵持件的一端弹性抵顶所述定位件。
每一联动件连接有所述抵推件，每一所述抵推件包括第一凸轮；所述抵持件包括两个第二凸轮，两个所述第二凸轮分别滑动地套设于两个所述转动轴，所述联动件随所述转动件沿所述转动轴转动以带动 所述第一凸轮相对于所述第二凸轮转动。
所述转动轴远离所述弹性件的端部连接于所述定位座。
一种折叠壳体，所述折叠壳体包括转轴装置及两个框体，所述转轴装置包括支撑机构、转动组件及联动组件，所述支撑机构包括侧部支撑件，所述转动组件包括定位座及设于所述定位座相对两侧的转动机构，所述转动机构包括转动件及连接件，所述转动件的一端转动地连接于定位座，所述转动件相对的另一端转动地连接于所述连接件；所述联动组件包括联动座及联动机构，所述联动机构包括转动地连接于所述联动座相对两侧的联动件，所述联动件远离所述联动座的一端与对应的转动件之间通过第一弧形槽与第一导滑轴的配合连接，所述联动件远离所述联动座的一端与对应的连接件之间通过第二弧形槽与第二导滑轴的配合连接，所述侧部支撑件与对应的连接件之间转动连接，所述侧部支撑件与对应的转动件滑动连接；所述转轴装置位于两个所述框体之间，两个所述框体分别连接于所述转轴装置的两个所述转动机构的连接件，所述框体带动所述转动机构相对于所述定位座转动，所述转动机构相对于所述定位座转动，以带动所述联动件相对于联动座转动以及带动侧部支撑件相对于所述定位座转动并滑动，以使所述支撑机构随所述转动机构及联动机构实现同步折弯或展开。
一种电子设备，所述电子设备包括柔性件及折叠壳体，转轴装置包括支撑机构、转动组件及联动组件，所述支撑机构包括侧部支撑件，所述转动组件包括定位座及设于所述定位座相对两侧的转动机构，所述转动机构包括转动件及连接件，所述转动件的一端转动地连接于定位座，所述转动件相对的另一端转动地连接于所述连接件；所述联动组件包括联动座及联动机构，所述联动机构包括转动地连接于所述联动座相对两侧的联动件，所述联动件远离所述联动座的一端与对应的转动件之间通过第一弧形槽与第一导滑轴的配合连接，所述联动件远离所述联动座的一端与对应的连接件之间通过第二弧形槽与第二导滑轴的配合连接，所述侧部支撑件与对应的连接件之间转动连接，所述侧部支撑件与对应的转动件滑动连接；所述转动机构相对于所述定位座转动，以带动所述联动件相对于联动座转动以及带动侧部支撑件相对于所述定位座转动并滑动，以使两个所述侧部支撑件同步相互折弯或同步相互展开；所述柔性件设置于所述折叠壳体上，所述柔性件随所述折叠壳体折弯或展平。
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。
请一并参阅图1至图8，本发明其中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上的柔性件30。柔性件30可为柔性显示屏、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。柔性件30随折叠壳体2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之间的转轴装置22。柔性件30包括对应转轴装置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。柔性件30的两个非折弯区域33可分别固定在两个框体21的正面上，可折弯区域31贴合于转轴装置22的正面上。柔性件30的可折弯区域31随转轴装置22折弯或展平。转轴装置22包括支撑机构23、转动组件25、联动组件26及限位机构27，联动组件26连接于转动组件25，限位机构27连接于联动组件26。支撑机构23包括中部支撑件231及设于中部支撑件231相对两侧的侧部支撑件233，柔性件30贴合于中部支撑件231和侧部支撑件233上。转动组件25包括定位座251及设于定位座251相对两侧的转动机构253，转动机构253包括转动件254及连接件256，转动件254的一端转动地连接于定位座251，转动件254相对的另一端转动地连接于连接件256。联动组件26包括联动座261及设于联动座261的联动机构263，联动机构263包括转动地设于联动座261相对两侧的联动件264，联动件264远离联动座261的一端与对应的转动件254之间通过第一弧形槽2640与第一导滑轴2540的配合连接；联动件264远离联动座261的一端与对应的连接件256之间通过第二弧形槽2561与第二导滑轴2641的配合连接，侧部支撑件233与对应的连接件256之间转动连接，侧部支撑件233与对应的转动件254滑动连接；转动机构253相对于定位座251转动，以带动对应的联动件264相对于联动座261转动及带动侧部支撑件233相对于定位座251转动并滑动，以使两个侧部支撑件233相对于中部支撑件231同步相互折弯或同步相互展开。
电子设备100的两个框体21分别连接于转轴装置22的两个连接件256，框体21通过连接件256带动转动件254相对于定位座251转动，且连接件256和转动件254带动联动件264相对于联动座261转动，以使得支撑机构23随转动机构253及联动机构263实现同步折弯或展开，柔性件30随支撑机构23折弯或展平，可折弯区域31可以弯折形成U形或水滴形或者其他形状。本实施例中，可折弯区域31 能弯折成水滴形。
本实施例中，所述正面指与柔性件30的出光面朝向相同的面，背面指与柔性件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。
本发明的电子设备100的转轴装置22包括支撑机构23、转动组件25及联动组件26，转动组件25的转动件254的一端转动地连接于定位座251，转动件254相对的另一端转动地连接于连接件256；联动组件26的联动件264远离联动座261的一端与转动件254之间通过第一弧形槽2640与第一导滑轴2540的配合连接，联动件264远离联动座261的一端与连接件256之间通过第二弧形槽2561与第二导滑轴2641的配合连接，侧部支撑件233与连接件256之间转动连接，侧部支撑件233与转动件254滑动连接。在两个框体21相互靠近或相互远离过程中，连接件256带动转动件254相对于定位座251转动，且连接件256和转动件254带动两个联动件264同步相对于联动座261转劝，以带动两个侧部支撑件233相互折叠或相互展开，从而实现柔性件30的折叠或展平。由于转轴装置22通过支撑机构23、转动组件25及联动组件26就能实现同步折叠或同步展平，相较现有技术中通过铰链机构支撑柔性件，本申请的转轴装置22的结构简单，制造成本较低，且各部件之间的连接可靠性高，整机强度提升；其次，本申请的转动件254或联动件264上的第一弧形槽2640，以及联动件264或连接件256上的第二弧形槽2561均采用开模成型制成，相较于现在技术中的联动件与转动件之间采用直线移动方式，即采用数控车床在连接杆或转动件上开设直线滑槽，使得开设所述直线滑槽的管控成本及加工成本增加，因此，本申请转轴装置22的制造管控成本及加工成本降低；另外，本申请中转动件254与联动件264之间采用弧形槽与导滑轴的配合来替代现有技术中的直线滑槽与滑轨的配合，减少了转轴装置22的整体宽度，从而减小转轴装置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。
本实施例中的转轴装置22包括一个转动组件25、一个联动组件26及一个限位机构27，转动组件25、联动组件26及限位机构27构成一个整体结构，所述整体结构设置于支撑机构23的背面。
在一些实施例中，转轴装置22也可以包括两个转动组件25、两个联动组件26及两个限位机构27，两个转动组件25分别设置于支撑机构23背面相对的两端，两个联动组件26分别连接于两个转动组件25，两个限位机构27分别连接于两个联动组件26。
在一些实施例中，转轴装置22也可以只包括三个或三个以上的转动组件25、三个或三个以上的联动组件26及三个或三个以上的限位机构27，三个或三个以上的转动组件25设置于支撑机构23的背面且沿支撑机构23的长度方向间隔排列，三个或三个以上的联动组件26分别连接于三个或三个以上的转动组件25，三个或三个以上的限位机构27分别连接于三个或三个以上的联动组件26。
如图1至图4所示，转轴装置22相对两侧的转动机构253分别固定连接于两个框体21，具体地，两个转动机构253的连接件256分别固定连接于两个框体21；其中一框体21相对于另一框体21折叠或展平，能带动对应的转动机构253相对于定位座251转动，转动机构253通过联动组件26带动两个侧部支撑件233相对于定位座251同步转动并滑动，直至两个侧部支撑件233与中部支撑件231同步折弯成水滴状或者同步展开成水平状，柔性件30的可折弯区域31随可折弯区域31折叠成水滴状或展开成水平状。
如图3及图4所示，具体地，框体21包括正面211、背面213、相对的两侧面214及两端面215，转轴装置22连接于两个框体21的两个端面215之间，柔性件30的非折弯区域33连接于框体21的正面211；每一框体21朝向转轴装置22的端面215设有收容槽216，收容槽216穿通框体21的正面211，收容槽216相对的两端延伸至靠近框体21相对的两侧面214。转轴装置22相对的两侧分别容置于两个框体21的收容槽216中，且每一连接件256与对应的框体21固定连接。框体21的背面213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。
请一并参阅图5及图8，中部支撑件231为矩形板状，中部支撑件231包括正面2311及背朝正面2311的背面2312，中部支撑件231的背面2312的一端相对的两侧分别凸设导滑块2313，导滑块2313背离正面2311的表面形成圆弧导面2314。中部支撑件231于两个导滑块2313之间开设相互间隔的两个避位孔2315，每一圆弧导面2314与对应的避位孔2315的侧面共面。中部支撑件231的背面2312于两个导滑块2313的四周设有若干连接筒2316，每一连接筒2316沿其轴向开设内螺纹；本实施例中，中部支撑件231的背面2312于两个导滑块2313的四角处分别凸设一个连接筒2316。中部支撑件231的中部相对的两侧分别设有两个间隔的第一避位口2317。
侧部支撑件233为矩形板状，侧部支撑件233远离中部支撑件231的一侧与连接件256之间通过第一圆弧槽与第一圆弧轨的配合连接。侧部支撑件233包括正面2331及背朝正面2331的背面2332，侧部支撑件233设有导滑块2333，导滑块2333设有第一圆弧槽2334，连接件256设有能滑动地插设于第一圆弧槽2334中的第一圆弧轨2562，第一圆弧槽2334的轴心线与侧部支撑件233与连接件256之间的转动轴心线共线。侧部支撑件233的背面2332远离中部支撑件231的一侧相对的两端分别凸设导滑块2333，每一导滑块2333为弧形块，第一圆弧槽2334开设于导滑块2333的侧面。第一圆弧槽2334的一端贯穿导滑块2333背离中部支撑件231的表面，第一圆弧槽2334相对的另一端延伸至侧部支撑件233 的背面2332，第一圆弧槽2334向远离背面2332的一侧弯曲，具体地，第一圆弧槽2334的中部向远离背面2332的一侧弯曲。本实施例中，导滑块2333背离中部支撑件231的表面与侧部支撑件233背离侧部支撑件231的侧面共面，两个导滑块2333面对的两个侧面分别设有第一圆弧槽2334，两个第一圆弧槽2334的轴心线共线，第一圆弧槽2334的一端贯穿导滑块2333背离中部支撑件231的表面。在一些实施例，两个导滑块2333相背离的两个侧面分别设有第一圆弧槽2334，两个第一圆弧槽2334的轴心线共线，第一圆弧槽2334的一端贯穿导滑块2333背离中部支撑件231的表面，第一圆弧槽2334向远离背面2332的一侧弯曲，即第一圆弧槽2334的中部向远离背面2332的一侧弯曲。在另一些实施例中，其中一导滑块2333相对的两侧面其中之一上设有第一圆弧槽2334，另一导滑块2333相对的两侧面其中之一上设有第一圆弧槽2334，两个第一圆弧槽2334的轴心线共线。
侧部支撑件233靠近中部支撑件231的一侧与转动件254之间通过滑槽与导滑柱的配合连接。本实施例中，侧部支撑件233的背面2332靠近中部支撑件231的一侧凸设导滑块2335，导滑块2335开设滑槽2336，滑槽2336贯穿导滑块2335相对的两侧面。滑槽2336向远离中部支撑件231的一侧倾斜延伸，也就是滑槽2336的第一端靠近背面2332，滑槽2336相对的第二端远离背面2332，滑槽2336自所述第一端向所述第二端倾斜延伸形成。侧部支撑件233靠近中部支撑件231的一侧设有相互间隔的三个第二避位口2337，三个第二避位口2337分别与中部支撑件231一侧的导滑块2313及两个第一避位口2317一一对应。
请一并参阅图5-图10，转动件254远离连接件256的一端转动连接于定位座251，侧部支撑件233远离中部支撑件231的一侧转动连接于连接件256；联动组件26连接于定位座251与连接件256之间。侧部支撑件233与连接件256之间通过第一圆弧槽2334与第一圆弧轨2562的配合可转动地连接；定位座251与转动件254之间通过第二圆弧槽2511与第二圆弧轨2541的配合可转动地连接。本实施例中，连接件256对应侧部支撑件233的第一圆弧槽2334设有第一圆弧轨2562，第一圆弧轨2562可转动地插设于第一圆弧槽2334内，以使连接件256与侧部支撑件233之间沿第一圆弧槽2334相对转动，第一圆弧槽2334的轴心线与第一圆弧轨2562的轴心线共线，第一圆弧轨2562的轴心线与侧部支撑件233和连接件256之间的转动轴心线共线。定位座251设有第二圆弧槽2511，转动件254设有对应第二圆弧槽2511的第二圆弧轨2541，以使连接件256与定位座251之间沿第二圆弧槽2511相对转动，第二圆弧槽2511的轴心线与第二圆弧轨2541的轴心线共线，第二圆弧轨2541的轴心线与转动件254和定位座251之间的转动轴心线共线。
具体地，定位座251呈矩形块，其包括横截面呈圆弧形的背面及背朝所述背面的正面2510，定位座251的正面2510的中部相对的两侧分别设有第二圆弧槽2511。定位座251相对的两侧壁分别设有避位槽2513，避位槽2513贯穿定位座251的正面2510，两个避位槽2513分别穿通两个第二圆弧槽2511。定位座251的正面于两个第二圆弧槽2511的四周设有若干通孔2514。本实施例中，定位座251的正面于第二圆弧槽2511的四角处分别设有通孔2514。定位座251的其中一端面设有间隔的两个定位孔2516。
转动件254包括第二圆弧轨2541、连接部2542及连接于第二圆弧轨2541与连接部2542之间的支撑部2543，第二圆弧轨2541用于转动地连接于定位座251，连接部2542用于连接所述连接件256、联动件264及侧部支撑件233。第二圆弧轨2541为圆弧形块，所述圆弧形块的背面用于滑动地贴合于第二圆弧槽2511的内表面。连接部2542远离第二圆弧轨2541的一端沿平行于第二圆弧轨2541的轴心线方向设有轴孔2544。连接部2542面朝联动件264的侧面凸设第一延伸块2545，第一延伸块2545背离连接部2542的侧面远离轴孔2544的一端设有第一固定孔2546。连接部2542背离第一延伸块2545的侧面靠近支撑部2543的一端设有第二固定孔2547；第二固定孔2547位于轴孔2544与第一固定孔2546之间。转动件254还包括第一导滑轴2540及导滑柱2548，第一导滑轴2540固定于转动件254，第一导滑轴2540的轴心线平行于第一圆弧槽2334的轴心线。本实施例中，第一导滑轴2540的一端固定连接于第一固定孔2546，导滑柱2548的一端固定连接于第二固定孔2547。在一些实施例中，第一导滑轴2540也可以一体成型于转动件254。本实施例中，支撑部2543为倾斜条，支撑部2543相对的两端分别连接于第二圆弧轨2541的一端部及连接部2542的一端部。优选地，连接部2542背离第二圆弧轨2541的端面形成圆弧面。
在一些实施例中，定位座251上的第二圆弧槽2511与转动件254上的第二圆弧轨2541可以互换；如：可以在第二圆弧轨2541上设有圆弧槽，在定位座251设有对应所述圆弧槽的圆弧轨，所述圆弧轨可转动地插设于所述圆弧槽中，所述圆弧槽的轴心线、所述圆弧轨的轴心线，以及转动件254与定位座251之间的转动轴心线共线。
在一些实施例中，定位座251在第二圆弧槽2511的侧面上设有圆弧槽，转动件254的第二圆弧轨2541的侧面凸设对应所述圆弧槽的圆弧轨。具体地，第二圆弧槽2511相对的两侧面设有一对圆弧槽，第二圆弧轨2541相对的两侧面对应所述一对圆弧槽凸设一对圆弧轨，当第二圆弧轨2541插入第二圆弧槽2511内时，一对所述圆弧轨分别插入一对所述圆弧槽中；或者第二圆弧槽2511的其中一侧面上设有一个圆弧槽，第二圆弧轨2541对应所述圆弧槽的侧面凸设圆弧轨，当第二圆弧轨2541插入第二圆弧槽2511内时，所述圆弧轨插入所述圆弧槽中。
连接件256呈条状，具体地，连接件256包括矩形的连接板2560，连接板2560相对的两端分别设有第一圆弧轨2562。连接板2560面朝侧部支撑件233的表面相对的两端分别凸设支撑板2563，第一圆弧轨2562凸设于支撑板2563远离连接板2560的一端。本实施例中，两个支撑板2563相互背离的两侧 面分别凸设第一圆弧轨2562，两个第一圆弧轨2562的轴心线共线，第一圆弧轨2562用于转动地插设于侧部支撑件233的第一圆弧槽2334中。
在一些实施例中，两个支撑板2563相对的两侧面分别凸设第一圆弧轨2562，两个第一圆弧轨2562的轴心线共线，两个第一圆弧轨2562分别可转动地容置于两个第一圆弧槽2334中。
在一些实施例中，其中一支撑板2563相对的两侧面其中之一上设有第一圆弧轨2562，另一支撑板2563相对的两侧面其中之一上设有第一圆弧轨2562，两个第一圆弧轨2562的轴心线共线，两个第一圆弧轨2562分别可转动地容置于两个第一圆弧槽2334中。
在一些实施例中，侧部支撑件233设有第一圆弧轨，连接件256设有对应所述第一圆弧轨的第一圆弧槽；具体地，侧部支撑件233的导滑块2333上凸设第一圆弧轨，连接件256的支撑板2563上设有对应所述第一圆弧轨的第一圆弧槽，所述第一圆弧轨可转动地容置于所述第一圆弧槽中。
连接件256靠近联动件264处凸设导滑部2565，第二弧形槽2561设于导滑部2565。具体地，连接板2560面朝侧部支撑件233表面的一端凸设有导滑部2565，另一端凸设有相互间隔的两个凸耳2566。导滑部2565为自连接板2560向转动件254一侧延伸的导滑块，第二弧形槽2561贯穿所述导滑块相对的两侧面。第二弧形槽2561包括远离定位座251的第一定位段2561a、靠近定位座251的第二定位段2561b，以及位于第一定位段2561a和第二定位段2561b之间的导滑段2561c；第一定位段2561a、导滑段2561c及第二定位段2561b相互连通。本实施例中，第二弧形槽2561的导滑段2561c向靠近侧部支撑件233的一侧弯曲，即第二弧形槽2561的导滑段2561c的中部向靠近侧部支撑件233的一侧弯曲。两个凸耳2566远离连接板2560的端面形成圆弧面，两个凸耳2566之间形成第一连接口2566a，两个凸耳2566沿连接板2560的长度方向设有连接孔2566b。导滑部2565与其相邻的凸耳2566之间形成第二连接口2565a，导滑部2565与其相邻的支撑板2563之间形成第三连接口2563a。连接件256还包括连接轴2567，连接轴2567用于插接在连接孔2566b中。
请一并参阅图7-图10，联动组件26还包括位于两个联动件264之间的齿轮组合265及两个转动轴266，两个联动件264分别转动地连接于两个转动轴266。联动座261沿平行于转动轴266的方向设有连接轴2611，齿轮组合265设置于连接轴2611，每一联动件264远离连接件256的端部设有啮合齿轮组合265的第一齿轮2645。联动座261包括固定条2610及设于固定条2610上的相互间隔的两个连接轴2611。固定条2610包括位于其中部的第一固定块2612及位于第一固定块2612相对两端的两个第二固定块2613，第二固定块2613背离第一固定块2612的端面设为圆弧面。第一固定块2612沿垂直于固定条2610的长度方向设有间隔的两个连接孔，两个连接轴2611的中部分别固定插接于第一固定块2612的两个连接孔中。第二固定块2613的中部沿平行于连接轴2611的轴心线方向设有轴孔2615。
联动件264包括第一套筒2642及连接于第一套筒2642外周壁的连杆2643，第一套筒2642的外周壁设有啮合于齿轮组合265的第一齿轮2645，连杆2643用于连接转动件254和连接件256。本实施例中，第一齿轮2645的齿牙沿第一套筒2642的周向排列的转动角度范围为大于90度小于180度，即第一套筒2642大于四分之一且小于二分之一的外周壁上设有第一齿轮2645。第二导滑轴2641固定于联动件264，本实施例中，连杆2643远离第一套筒2642的一端沿平行于第一齿轮2645的轴心线方向设有固定孔2646，第二导滑轴2641的一端固定于固定孔2646中。第一弧形槽2640设于联动件264面朝转动件254的侧面；本实施例中，连杆2643面朝转动件254的侧面凸设第二延伸块2647，第二延伸块2647背离连杆2643的侧面设有第一弧形槽2640。第一弧形槽2640包括靠近第一套筒2642的第一定位段2640a、远离第一套筒2642的第二定位段2640b，以及位于第一定位段2640a和第二定位段2640b之间的导滑段2640c；第一定位段2640a、导滑段2640c及第二定位段2640b相互连通。本实施例中，第一弧形槽2640的导滑段2640c向远离侧部支撑件233的一侧弯曲，即第一弧形槽2640的导滑段2640c的中部向远离侧部支撑件233的一侧弯曲。
每一联动件264连接有抵推件271，具体地，抵推件271为连接于第一套筒2642背离联动座261一端的套筒。抵推件271包括第一凸轮2710，第一凸轮2710设于所述套筒背离联动座261的端面。第一凸轮2710套设于转动轴266，第一凸轮2710的轴心线与第一套筒2642共轴心线，第一齿轮2645的轴心线与第一套筒2642的轴心线共线。第一凸轮2710包括设于所述套筒一端的凹凸面，所述凹凸面包括第一凸出部2712及第一凹陷部2714，第一凸出部2712及第一凹陷部2714沿所述套筒的周向依次间隔排列。第一凸出部2714的数量及第一凹陷部2715的数量可以根据需要进行设置，如第一凸轮2710可以包括一个第一凸出部2714及一个第一凹陷部2715、两个第一凸出部2714及两个第一凹陷部2715、三个第一凸出部2714及三个第一凹陷部2715，或者四个第一凸出部2714及四个第一凹陷部2715等。本实施例中，第一凸轮2710包括沿所述套筒的周向间隔排列的三个第一凸出部2712和三个第一凹陷部2714。
齿轮组合265包括两个相互啮合的第二齿轮2652，两个联动件264的第一齿轮2645分别与两个第二齿轮2652啮合，第二齿轮2652的分度圆的直径小于第一齿轮2645的分度圆的直径，且第二齿轮2652围设一圈的齿牙数量少于第一齿轮2645围设一圈的齿牙数量。
本实施例中，联动组件26还包括两对联动件及两个齿轮组合265，每一对联动件之间设有一个齿轮组合265；两对联动件分别设置于联动座261相对的两侧。需要说明的是：其中一对联动件264及对应的齿轮组合265和另一对联动件264a及对应的齿轮组合265分别设置于联动座261相对的两侧，其中联动件264a的结构与联动件264的结构相似，不同之处在于：联动件264a是在联动件264的基础上省 略了第二延伸块2647及第一弧形槽2640。
在一些实施例中，联动组件26也可以只包括一对联动件264及设于一对联动件264之间的齿轮组合265。
如图9及图10所示，转动轴266包括轴体2660及位于轴体2660一端的定位盖2662，轴体2660远离定位盖2662的端部设有卡槽2663。卡槽2663位于轴体2660的外周壁并沿轴体2660的周向围设一圈。
请一并参阅图5-图10，限位机构27包括设于联动件264、264a的抵推件271、抵持件273及弹性件274，弹性件274提供抵持件273与抵推件271之间相互抵顶的弹力，转动机构253通过联动机构26相对于定位座251转动，抵推件271相对于抵持件273转动，弹性件274被弹性挤压发生弹性变形，抵推件271与抵持件273之间的摩擦阻力使联动件264、264a相对于联动座261定位，以实现侧部支撑件233相对于中部支撑件231定位在特定角度。所述特定角度的范围为两个侧部支撑件233之间的夹角在70度-130度，具体地，当转轴装置22的两个侧部支撑件233通过转动组件25及联动组件26相互同步展开或相互同步折叠至等于或大于70度且小于或等于130度时，抵推件271与抵持件273之间的摩擦助力使两个侧部支撑件233定位，即在没有外力的情况下两个侧部支撑件233不相互转动。具体地，抵持件273包括第二凸轮2730，第一凸轮2710与第二凸轮2730相互可转动抵持，弹性件274弹性抵推抵持件273。当第一凸轮2710相对于第二凸轮2730转动时，第一凸轮2710转动地抵推第二凸轮2730向远离或靠近所述联动座261的滑动，弹性件274被挤压，第一凸轮2710与第二凸轮2730之间的摩擦阻力能使抵推件271相对于抵持件273限位至特定角度。
本申请中在两个转动轴266一定宽度和高度空间下，通过设置在两个转动轴266之间的两个第二齿轮2652来增大第一齿轮2645的分度圆的直径，从而能增大第一凸轮2710的外径，使得第一凸轮2710与第二凸轮2730之间能提供较大的摩擦扭力，且能减少第一凸轮2710的疲劳磨损，从而延长第一凸轮2710的使用寿命。第二齿轮2652的中部沿其轴向开设轴孔2654。
本实施例中，抵持件273包括连接部2732及设于连接部2732相对两端的两个第二凸轮2730，即两个第二凸轮2730位于连接部2732相对的两端，两个第二凸轮2730分别滑动地套设于两个转动轴266。两个联动件264远离第一凸轮2710的一端分别连接于两个连接件256及两个转动件254，两个联动件264a远离第一凸轮2710的一端分别连接于两个连接件256；联动件264、264a随连接件256及转动件254沿转动轴266相对于联动座261转动以带动第一凸轮2710相对于所述第二凸轮2730转动，抵持件273能沿转动轴266的轴向滑动。具体地，第二凸轮2730包括圆形的套筒及设于所述套筒一端的凹凸面，所述凹凸面包括第二凸出部2734及第二凹陷部2735，第二凸出部2734及第二凹陷部2735沿所述套筒的周向依次间隔排列；第二凸轮2730上的第二凸出部2734的数量及第二凹陷部2735的数量与第一凸轮2710上的第一凹陷部2715的数量及第一凸出部2714的数量一致，使得第一凸出部2714与第二凹陷部2735配合，第二凸出部2734与第一凹陷部2715配合。连接部2732沿第二凸轮2730的套筒的轴向设有间隔的两个导滑孔2737。
本实施例中，限位机构27包括两个抵持件273及两个弹性件274，其中一一抵持件273的两个第二凸轮2730分别与两个联动件264上的第一凸轮2710配合，另一抵持件273的两个第二凸轮2730分别与两个联动件264上的第一凸轮2710配合。弹性件2731为套设于转动轴266上的弹簧。
如图9及图10所示，限位机构27还包括设于转动轴266远离抵推件271一端的定位件275及垫片277，定位件275用于将弹性件2731定位于转动轴266上，垫片277套设于转动轴266上并位于定位件275与弹性件2731之间。定位件275包括定位片2751及设于定位件2751相对两端的两个卡扣2755，定位片2751相对的两端面形成为圆弧面，卡扣2755为C型卡环。垫片277相对的两端面形成为圆弧面,垫片277相对的两端分别设有通孔2772。
如图3-图6所示，转轴装置22还包括背盖28，定位座251及联动座261连接于背盖28。具体地，背盖28为条形框，背盖28具有收容槽280，定位座251及联动座261容置于收容槽280中并固定连接于背盖28。优选地，背盖28于收容槽280的内表面上设有第一安装部(图中未示)及第二安装部(图中未示)，定位座251连接于所述第一安装部，联动座261连接于所述第二安装部。定位座251与所述第一安装部之间的连接以及联动座261与所述第二安装部之间的连接可以通过但不限于螺接、卡接或胶接等方式。
请一并参阅图3-图18，组装转轴装置时，将两个转动件254的连接部2542远离第二圆弧轨2541的端部分别容置于两个连接件256的第一连接口2566a中，使每一转动件254的轴孔2544与对应的连接孔2566b对齐，且每一转动件254的第一延伸块2545靠近连接件256的导滑部2565；将连接轴2567插接于轴孔2544及连接孔2566b中，使转动件254沿连接轴2567可转动地连接于连接件256；将两个第一导滑轴2540的一端分别插接于两个转动件254的第一固定孔2546，使第一导滑轴2540的另一端突出转动件254；将两个导滑柱2548的一端分别插接于两个转动件254的第二固定孔2547，使导滑柱2548的另一端突出转动件254。
将两个齿轮组合265分别组装于联动座261相对的两侧，具体地，将两个齿轮组合265分别置于联动座261相对的两侧，并使每一齿轮组合265的第二齿轮2652套接于连接轴2611上，即每一连接轴2611插入对应的第二齿轮2652的轴孔2654中；将一对联动件264置于其中一个齿轮组合265相对的两侧，且联动件264的第一齿轮2645与第二齿轮2652啮合；将另一对联动件264a置于另一个齿轮组合265 相对的两侧，且联动件264a的第一齿轮2645与第二齿轮2652啮合；此时，每一第一套筒2642的内腔与对应的轴孔2615对齐。将两个抵持件273分别与两对联动件配合，具体地，将其中一抵持件273的两个第二凸轮2730分别与一对联动件264的第一凸轮2710配合，将另一抵持件273的两个第二凸轮2730分别与另一对联动件264a的第一凸轮2710配合，此时第一凸出部2714容置于第二凹陷部2735，第二凸出部2734容置于第一凹陷部2715，连接轴2611插入对应的导滑孔2737中。将两个转动轴266远离定位盖2662的端部分别插入与一对联动件264配合的抵持件273的两个第二凸轮2730的套筒中，使转动轴266依次穿过联动件264的第一套筒2642、联动座261的轴孔2615、联动件264a的第一套筒2642，以及另一抵持件273的第二凸轮2730的套筒，直至抵持件273止挡于转动轴266的定位盖2662。将两个弹性件274分别套接于两个转动轴266远离定位盖2662的端部；将垫片277套接于两个转动轴266远离定位盖2662的端部，即两个转动轴266远离定位盖2662的端部分别插入垫片277的两个通孔2772中。将两个卡扣2755分别卡接于两个转动轴266的卡槽2663。此时，两个卡扣2755分别抵顶垫片277，抵持件273及弹性件274套设于转动轴266，抵持件273位于抵推件271与弹性件274之间，弹性件274远离抵持件273的一端弹性抵顶定位件275，弹性件274处于被挤压状态，即弹性件274具有预弹力，若弹性件2731具有预弹力F0，每一第一凸轮2710可转动抵持于对应的第二凸轮2730，每一转动轴266上的第一凸轮2710及第二凸轮及2720上的轴向力F等于弹性件274的预弹力F0，即F＝F0。
将两个转动机构253的第二圆弧轨2541分别放置于定位座251的两个第二圆弧槽2511中，将联动组件26放置于转动组件25的两个连接件256之间，转动轴266远离弹性件274的端部连接于定位座251，也就是联动组件26的两个转动轴266的定位盖2662分别插入定位座251的两个定位孔2516中，两个第一导滑轴2540远离转动件254的端部分别插入一对联动件264的第一弧形槽2640中；将一对联动件264的连杆2643远离第一套筒2642的端部分别容置于两个连接件256的第二连接口2565a中，将另一对联动件264a的连杆2643远离第一套筒2642的端部分别容置于两个连接件256的第三连接口2563a中；将两个第二导滑轴2641分别穿设于两个连接件256的第二弧形槽2561，且第二导滑轴2641相对的两端分别插接于两个连杆2643的固定孔2646中。将中部支撑件231覆盖于定位座251及联动座261上，使中部支撑件231的四个连接筒2316的内腔分别正对定位座251的通孔2514，四个螺丝钉分别穿过通孔2514后锁固于对应的连接筒2316的内螺纹，此时，转动件254远离连接件256的一端设于中部支撑件231与定位座251之间，即两个第二圆弧轨2541被定位座251和中部支撑件231夹持，第二圆弧轨2541的其中一圆弧面可转动地贴合于第二圆弧槽2511的内表面，第二圆弧轨2541通过第二圆弧轨2541能相对的定位座251转动；两对联动件264分别正对中部支撑件231的第一避位口2317。再将两个侧部支撑件233置于中部支撑件231相对的两侧，每一连接件256的两个第一圆弧轨2562分别插入对应的侧部支撑件233的两个第一圆弧槽2334中，并将转动件254的第一导滑轴2540可滑动地插入侧部支撑件233的滑槽2336中，侧部支撑件233的三个第二避位口2337分别正对转动件254、联动件264及联动件264a。当侧部支撑件233与中部支撑件231呈展平状态时，使侧部支撑件233和中部支撑件231并排，第一圆弧轨2562可转动地容置于对应的第一圆弧槽2334中，导滑柱2548位于滑槽2336的第二端，第一导滑轴2540位于第一弧形槽2640的第一定位段2640a，第二导滑轴2641位于第二弧形槽2561的第一定位段2561a。
此时，第一弧形槽2640向远离侧部支撑件233的一侧弯曲，即第一弧形槽2640的导滑段2640c向远离侧部支撑件233的一侧弯曲；第二弧形槽2561向靠近侧部支撑件233的一侧弯曲，即第二弧形槽2561的导滑段2561c向远离侧部支撑件233的一侧弯曲；第一弧形槽2640相较于第二弧形槽2561更靠近侧部支撑件233。转动件254与定位座251之间的转动轴心线平行于侧部支撑件233与连接件256之间的转动轴心线；转动件254与定位座251之间的转动轴心线平行于联动件264与联动座261之间的转动轴心线；转动件254与定位座251之间的转动轴心线平行于转动轴266的轴心线，且转动件254与定位座251之间的转动轴心线相较转动轴266的轴心线更靠近支撑机构23；第一导滑轴2540的轴心线、导滑柱2548的轴心线、连接轴2567的轴心线、第二导滑轴2641的轴心线及转动轴266的轴心线相互平行。
当连接件256带动转动件254相对于定位座251转动，联动件264、264a相对于联动座261转动，转动机构253带动侧部支撑件233相对于定位座251转动并滑动，以使侧部支撑件233与中部支撑件231同步相互折弯或同步相互展开。具体地，转动件254相对于定位座251通过第二圆弧轨2541与第二圆弧槽2511相对转动；联动件264随转动机构253沿对应的转动轴266转动，以使联动件264、264a的第一齿轮2645转动地啮合于对应的第二齿轮2652，实现限位机构27的两对联动件的同步转动，第一导滑轴2540在第一弧形槽2640中滑动并转动，第二导滑轴2641在第二弧形槽2561中滑动并转动；连接件256的第一圆弧轨2562转动地连接于对应的第一圆弧槽2334，导滑柱2548在滑槽2336中滑动并转动，以实现侧部支撑件233与中部支撑件231的相互折弯或相互展开。
如图19-图32，将转轴装置22由展平状态进行弯折时，将其中一连接件256相对于定位座251向另一连接件256弯折，所述其中一连接件256带动转动件254的第二圆弧轨2541在定位座251的第二圆弧槽2511中转动，转动件254上的第一导滑轴2540在对应的第一弧形槽2640中滑动并转动，且第一导滑轴2540从第一定位段2640a移动至第二定位段2640b，联动件264上的第二导滑轴2641在对应的第二弧形槽2561中转动并滑动，且第二导滑轴2641从第一定位段2561a移动至第二定位段2561b，以带动对应的联动件264、264a沿转动轴266转动。联动件264、264a的转动带动对应的第一齿轮2645 转动，通过齿轮组合265带动对应的两个第一齿轮2645同步转动，同步转动的第一齿轮2645带动对应的两个联动件264同步相互靠拢；同时，连接件256带动第一圆弧轨2562转动地连接于对应的第一圆弧槽2334中，转动件254上的导滑柱2548在对应的滑槽2336中从第二端滑动并转动至第一端；同时，联动座261相对两侧的联动件相对于联动座261同步转动而相互靠拢，以带动两个侧部支撑件233同步相互靠拢，直至两个侧部支撑件233与中部支撑件231围成横截面成水滴状。
上述过程中，侧部支撑件233相对于中部支撑件231折弯过程中，第一导滑轴2540自第一弧形槽2640靠近中部支撑件231的一端(就是第一导滑轴2540的第一定位段2640a)滑动至远离中部支撑件231的一端(就是第一导滑轴2540的第二定位段2640b)，第二导滑轴2641自第二弧形槽2561远离中部支撑件231的一端(就是第二导滑轴2641的第一定位段2561a)滑动至靠近中部支撑件231的一端(第二导滑轴2641的第二定位段2561b)。导滑柱2548自滑槽2336远离中部支撑件231的一端(就是滑槽的第二端)滑动到靠近中部支撑件231的一端(就是滑槽的第一端)。每一转动轴266上的第一凸轮2710与对应的第二凸轮2730之间的轴向力等于弹性件274的弹力；第一凸轮2710与第二凸轮2730之间的摩擦阻力能使两个侧部支撑件233限位在70度至130度之间的特定角度。
在其他的使用方式中，可以将两个连接件256朝相向方向一同转动，每一连接件256通过对应的转动件254第二圆弧轨2541与定位座251对应的第二圆弧槽2511相对转动，以带动限位机构27的联动件264、264a沿对应的转动轴266转动；同时，两个连接件256同步带动第一圆弧轨2562转动地连接于侧部支撑件233对应的第一圆弧槽2334中，转动件254上的导滑柱2548在对应的侧部支撑件233的滑槽2336中滑动并转动，转动件254上的第一导滑轴2540在对应的第一弧形槽2640中滑动并转动，使第一导滑轴2540从第一定位段2640a移动至第二定位段2640b；联动件264的转动带动对应的第一齿轮2645转动，通过齿轮组合265带动对应的两个第一齿轮2645同步转动，同步转动的第一齿轮2645带动对应的联动件264、264a同步相互靠拢，联动件264上的第二导滑轴2641在对应的第二弧形槽2561中转动并滑动，且第二导滑轴2641从第一定位段2561a移动至第二定位段2561b；同时，限位机构27相对两侧的转动机构253相对于定位座251同步转动而相互靠拢，以带动两个侧部支撑件233同步相互靠拢，直至两个侧部支撑件233与中部支撑件231围成横截面成水滴状。
将转轴装置22由完全弯折状态进行展开时，将其中一连接件256相对于定位座251朝远离另一连接件256展开，所述其中一连接件256带动转动件254的第二圆弧轨2541在定位座251的第二圆弧槽2511内转动，转动件254的第一导滑轴2540在对应的第一弧形槽2640中滑动并转动，且第一导滑轴2540从第二定位段2640b移动至第一定位段2640a；联动件264上的第二导滑轴2641在对应的第二弧形槽2561中转动并滑动，且第二导滑轴2641从第二定位段2561b移动至第一定位段2561a，以带动对应的联动件264、264a沿转动轴266转动。同时，连接件256带动第一圆弧轨2562转动地连接于对应的第一圆弧槽2334中，转动件254上的导滑柱2548在对应的滑槽2336中从第一端滑动并转动至第二端；联动件264、264a的转动带动对应的第一齿轮2645转动，通过齿轮组合265带动对应的两个第一齿轮2645同步转动，同步转动的第一齿轮2645带动对应的两个联动件264同步相互远离；同时，限位机构27相对两侧的转动机构253相对于定位座251同步转动而相互远离，以带动两个侧部支撑件233同步相互展开，直至两个侧部支撑件233与中部支撑件231呈展平状。
上述过程中，侧部支撑件233相对于中部支撑件231展平过程中，第一导滑轴2540自第一弧形槽2640远离中部支撑件231的一端(就是第一导滑轴2540的第二定位段2640b)滑动至靠近中部支撑件231的一端(就是第一导滑轴2540的第一定位段2640a)，第二导滑轴2641自第二弧形槽2561靠近中部支撑件231的一端(第二导滑轴2641的第二定位段2561b)滑动至远离中部支撑件231的一端(就是第二导滑轴2641的第一定位段2561a)；导滑柱2548自滑槽2336靠近中部支撑件231的一端(就是滑槽的第一端)滑动到远离中部支撑件231的一端(就是滑槽的第二端)。每一转动轴266上的第一凸轮2710及第二凸轮2730上的轴向力等于弹性件274的弹力；第一凸轮2710与第二凸轮2730之间的摩擦阻力能使两个侧部支撑件233限位在130度至70度之间的特定角度。
在其他的使用方式中，可以将两个连接件256朝相互远离的方向一同转动，每一连接件256带动转动件254的第二圆弧轨2541沿定位座251的第二圆弧槽2511相对转动，转动件254的第一导滑轴2540在对应的第一弧形槽2640中滑动并转动，且第一导滑轴2540从第二定位段2640b移动至第一定位段2640a；联动件264上的第二导滑轴2641在对应的第二弧形槽2561中转动并滑动，且第二导滑轴2641从第二定位段2561b移动至第一定位段2561a，以带动对应的联动件264、264a沿转动轴266转动；同时，连接件256带动第一圆弧轨2562转动地连接于对应的第一圆弧槽2334中，转动件254上的导滑柱2548在对应的滑槽2336中从第一端滑动并转动至第二端；联动件264、264a的转动带动对应的第一齿轮2645转动，通过齿轮组合265带动对应的两个第一齿轮2645同步转动，同步转动的第一齿轮2645带动对应的联动件264同步相互远离；同时，限位机构27相对两侧的转动机构253相对于定位座251同步转动而相互远离，以带动两个侧部支撑件233同步相互远离，直至两个侧部支撑件233与中部支撑件231齐平。
在一些实施例中，转动件254上的第一导滑轴2540与联动件264上的第一弧形槽2640可以互换，也就是第一弧形槽2640可以设于转动件254面朝联动件264的侧面，第一导滑轴2540可以固定于联动件264，第一导滑轴2540滑动并转动地插设于第一弧形槽2640。具体地，在连接件256面朝联动件264的侧面设有第一弧形槽，在联动件264上设有能活动地插设于所述第一弧形槽中的第一导滑轴，在转轴 装置22弯折或展开的过程中，所述第一导滑轴在所述第一弧形槽中滑动并转动。
在一些实施例中，联动件264上的第二导滑轴2641与连接件256上的第二弧形槽2561可以互换，也就是第二弧形槽2561可以设于联动件264，第二导滑轴2641可以固定于导滑部2565，第二导滑轴2641滑动并转动地插设于第二弧形槽2561。具体地，在联动件264面朝导滑部2565的侧面上设有第二弧形槽，在连接件256上设有能活动地插设于所述第二弧形槽中的第二导滑轴，在转轴装置20弯折或展开的过程中，所述第二导滑轴在所述第二弧形槽中滑动并转动。
在一些实施例中，转动件254上的导滑柱2548与侧部支撑件233上的滑槽2336可以互换，具体地，在转动件254的连接部2542面朝导滑块2335的侧面设有滑槽，在侧部支撑件233上设有能活动地插设于所述滑槽中的导滑柱，在转轴装置20弯折或展开的过程中，所述导滑柱在所述滑槽中滑动并转动。
请一并参阅图1-图4，将安装完成的转轴装置22置于两个框体21之间，将背盖28相对两侧的连接件256分别容置于两个框体21的收容槽216中，并将两个连接件256分别固定连接于两个框体21。此时，两个框体21的正面211、两个侧部支撑件233的正面及中部支撑件231的正面2311共面。柔性件30的背面连接于两个框体21的正面2331及支撑机构23的正面2311，可折弯区域31正对支撑机构23，两个非折弯区域33分别正对两个框体21的正面。当柔性件30处在展平状态时，中部支撑件231与两个侧部支撑件233齐平，第一凸轮2710与第二凸轮2730相互贴合，以限定支撑机构23保持展平状态；由于支撑机构23的正面为完整面，因此，柔性件30在展平时不会受到段差处的冲击，柔性件30不会出现彩点、亮点等不良问题，保证柔性件30的可靠性，同时，也提升柔性件30的触摸手感，提高用户使用体验；另外，转动件254与联动件264之间通过第一弧形槽和第一导滑轴配合连接，联动件264与连接件256之间通过第二弧形槽和第二导滑轴配合连接，第一弧形槽的弯曲方向与第二弧形槽的弯曲方向相反，因此，能使转轴装置22中各元件间的连接更紧凑，从而减小转轴装置22的整体宽度，降低占用壳体20的内部空间，有利于主板或电池等其他元件的布局。
请一并参阅图29-图35，弯折电子设备100时，对电子设备100的两个框体21至少其中一个施加折弯的力，使连接于两个框体21的转动机构253朝相互邻近的方向转动，通过联动组件26实现转轴装置22的折弯，柔性件30的可折弯区域31随支撑机构23弯折。具体地，如对其中一框体21施加折弯的力，所述其中一框体21带动对应的转动件254相对于定位座251向靠近柔性件30的一侧转动，转动件254的第二圆弧轨2541与定位座251的第二圆弧槽2511相对转动，第一导滑轴2540在对应的第一弧形槽2640中滑动并转动，且第一导滑轴2540从第一定位段2640a移动至第二定位段2640b，第二导滑轴2641在对应的第二弧形槽2561中转动并滑动，且第二导滑轴2641从第一定位段2561a移动至第二定位段2561b，以带动对应的联动件264、264a沿转动轴266转动，联动件264、264a的转动带动对应的第一齿轮2645转动，通过齿轮组合265带动对应的两个第一齿轮2645同步转动，同步转动的第一齿轮2645带动对应的两个联动件264同步相互靠拢。同时，连接件256带动第一圆弧轨2562转动地连接于对应的第一圆弧槽2334中，导滑柱2548在对应的滑槽2336中从第二端滑动并转动至第一端；同时，限位机构27相对两侧的转动机构253相对于定位座251同步转动而相互靠拢，以带动两个侧部支撑件233同步相互靠拢，使得转轴装置22呈折弯状态；柔性件30的可折弯区域31随转轴装置22弯折，直至柔性件30的两个非折弯区域33的正面相互贴合，可折弯区域31弯折成水滴状，从而实现电子设备100的无缝折叠。
在上述过程中，每一转动轴266上的第一凸轮2710与第二凸轮2730之间的摩擦扭力大于柔性件30的反弹力，以使两个侧部支撑件233之间相对定位在特定角度，能使两个框体21限位在70度至130度之间的特定角度。柔性件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。
在对电子设备100的其他折弯方式中，还可以同时对两个框体21施加折弯的力，两个框体21分别带动两个转动机构253向靠近柔性件30的一侧转动，并通过转轴装置22以实现电子设备100的折弯。
当需要展平电子设备100时，向外拉开其中一框体21，使连接于两个框体21上的两个转动机构253朝相互远离的方向转动。具体地，对电子设备100的其中一框体21施加向外拉开的力，所述其中一框体21带动对应的转动件254相对于定位座251向远离柔性件30的一侧转动，转动件254的第二圆弧轨2541沿定位座251的第二圆弧槽2511相对转动，转动件254的第一导滑轴2540在对应的第一弧形槽2640中滑动并转动，且第一导滑轴2540从第二定位段2640b移动至第一定位段2640a；联动件264上的第二导滑轴2641在对应的第二弧形槽2561中转动并滑动，且第二导滑轴2641从第二定位段2561b移动至第一定位段2561a；以带动对应的联动件264264、264a沿转动轴266转动；同时，连接件256带动第一圆弧轨2562转动地连接于对应的第一圆弧槽2334中，转动件254上的导滑柱2548在对应的滑槽2336中从第一端滑动并转动至第二端；联动件264的转动带动对应的第一齿轮2645转动，通过齿轮组合265带动对应的两个第一齿轮2645同步转动，同步转动的第一齿轮2645带动对应的两个联动件264同步相互远离；同时，限位机构27相对两侧的转动机构253相对于定位座251同步转动而相互远离，以带动两个侧部支撑件233同步相互远离而展平，使得转轴装置22展开，柔性件30的可折弯区域31随转轴装置22展开，直至柔性件30展平。
在上述过程中，每一转动轴266上的第一凸轮2710与第二凸轮2730之间的摩擦扭力之和大于柔性件30的反弹力，以使两个侧部支撑件233之间相对定位在特定角度，能使两个框体21限位在130度至70度之间的特定角度。
在对电子设备100的其他折弯方式中，还可以同时对两个框体21施加向外拉开的力，两个框体21分别带动两个转动机构253相对于向远离柔性件30的一侧转动，并通过转轴装置22以实现电子设备100的展开。
本发明的电子设备100的转轴装置22通过转动组件25及联动组件26实现同步折弯或展开，由于转动件254与联动件264之间及联动件264与连接件256之间均通过弧形槽和导滑轴配合连接，因此，能使转轴装置22中各元件间的连接更紧凑，从而减小转轴装置22的整体宽度，降低占用壳体20的内部空间，有利于主板或电池等其他元件的布局；其次，由于限位机构27的弹性件274能提供较大的轴向力，使得第一凸轮2710与所述第二凸轮2730之间具有较大的摩擦扭力；因此，由第一凸轮2710与所述第二凸轮2730之间的摩擦扭力形成的转轴装置22的总摩擦扭力足够大，能实现电子设备100弯折限位在70度-130度之间的特定角度，实现整机的悬停功能。另外，转轴装置22的联动组件26与转动组件25之间通过转动轴266与定位座251的定位孔2516固定连接、转动件254与联动件264之间通过第一导滑2540轴连接，联动件264与连接件256之间通过第二导滑轴2641连接，侧部支撑件233与转动件254通过导滑柱2548连接，以及侧部支撑件233远离中部支撑件231的一侧相对的两端分别与连接件256连接，从而使转轴装置22的结构牢固，提升电子设备100的整机强度。
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 (20)

  1. 一种转轴装置，其特征在于，所述转轴装置包括：
    支撑机构，所述支撑机构包括侧部支撑件；
    转动组件，所述转动组件包括定位座及设于所述定位座相对两侧的转动机构，所述转动机构包括转动件及连接件，所述转动件的一端转动地连接于定位座，所述转动件相对的另一端转动地连接于所述连接件；以及
    联动组件，所述联动组件包括联动座及联动机构，所述联动机构包括转动地连接于所述联动座相对两侧的联动件，所述联动件远离所述联动座的一端与对应的转动件之间通过第一弧形槽与第一导滑轴的配合连接，所述联动件远离所述联动座的一端与对应的连接件之间通过第二弧形槽与第二导滑轴的配合连接，所述侧部支撑件与对应的连接件之间转动连接，所述侧部支撑件与对应的转动件滑动连接；所述转动机构相对于所述定位座转动，以带动所述联动件相对于联动座转动以及带动侧部支撑件相对于所述定位座转动并滑动，以使两个所述侧部支撑件同步相互折弯或同步相互展开。
  2. 根据权利要求1所述的转轴装置，其特征在于，所述第一弧形槽向远离所述侧部支撑件的一侧弯曲，所述第二弧形槽向靠近所述侧部支撑件的一侧弯曲，所述转轴装置在展平状态时，所述第一弧形槽相较于所述第二弧形槽更靠近所述侧部支撑件。
  3. 根据权利要求1所述的转轴装置，其特征在于，所述支撑机构还包括中部支撑件，两个所述侧部支撑件设于所述中部支撑件相对的两侧，所述中部支撑件及所述侧部支撑件用于支撑柔性件，所述侧部支撑件同步相互折弯过程中，所述第一导滑轴自所述第一弧形槽靠近所述中部支撑件的一端滑动至远离所述中部支撑件的一端，所述第二导滑轴自所述第二弧形槽远离所述中部支撑件的一端滑动至靠近所述中部支撑件的一端。
  4. 根据权利要求1所述的转轴装置，其特征在于，所述第一弧形槽设于所述联动件面朝所述转动件的侧面，所述第一导滑轴固定于所述转动件；或者所述第一弧形槽设于所述转动件面朝所述联动件的侧面，所述第一导滑轴固定于所述联动件，所述第一导滑轴滑动并转动地插设于所述第一弧形槽。
  5. 根据权利要求1所述的转轴装置，其特征在于，所述连接件靠近所述联动件处凸设导滑部，所述第二弧形槽设于所述导滑部，所述第二导滑轴固定于所述联动件；或者所述第二弧形槽设于所述联动件，所述第二导滑轴固定于所述导滑部；所述第二导滑轴滑动并转动地插设于所述第二弧形槽。
  6. 根据权利要求1所述的转轴装置，其特征在于，所述第一导滑轴的轴心线平行于所述第二导滑轴的轴心线。
  7. 根据权利要求3所述的转轴装置，其特征在于，所述侧部支撑件远离所述中部支撑件的一侧与所述连接件之间通过第一圆弧槽与第一圆弧轨的配合连接，所述第一圆弧槽的轴心线与所述侧部支撑件与所述连接件之间的转动轴心线共线；所述侧部支撑件靠近所述中部支撑件的一侧与所述转动件之间通过滑槽与导滑柱的配合连接。
  8. 根据权利要求7所述的转轴装置，其特征在于，所述滑槽向远离所述中部支撑件的一侧倾斜延伸，所述导滑柱的轴心线平行于所述第一圆弧槽的轴心线。
  9. 根据权利要求3所述的转轴装置，其特征在于，所述定位座与所述转动件之间通过第二圆弧槽与第二圆弧轨的配合连接，所述第二圆弧轨的轴心线与所述转动件与所述定位座之间的转动轴心线共线。
  10. 根据权利要求9所述的转轴装置，其特征在于，所述转动件远离所述连接件的一端设于所述中部支撑件与所述定位座之间，所述中部支撑件设有对应所述第二圆弧轨的圆弧导面。
  11. 根据权利要求1所述的转轴装置，其特征在于，所述转动件与所述定位座之间的转动轴心线平行于所述联动件与所述联动座之间的转动轴心线。
  12. 根据权利要求3所述的转轴装置，其特征在于，所述联动机构还包括两个转动轴及位于所述联动件之间的齿轮组合，两个所述联动件分别连接于两个所述转动轴，所述联动座沿平行于所述转动轴的方向设有连接轴，所述齿轮组合设置于所述连接轴，每一联动件远离所述连接件的端部设有啮合所述齿轮组合的第一齿轮。
  13. 根据权利要求12所述的转轴装置，其特征在于，所述转轴装置还包括限位机构，所述限位机构包括设于所述联动件的抵推件、抵持件及弹性件，所述弹性件提供所述抵持件与所述抵推件之间相互抵顶的弹力，所述转动机构通过所述联动机构相对于所述定位座转动，所述抵推件相对于所述抵持件转动，所述弹性件被弹性挤压发生弹性变形，所述抵推件与所述抵持件之间的摩擦阻力使所述联动件相对于所述联动座定位，以实现所述侧部支撑件相对于所述中部支撑件定位在特定角度。
  14. 根据权利要求13所述的转轴装置，其特征在于，所述抵推件包括第一凸轮，所述抵持件包括第二凸轮，所述第一凸轮与所述第二凸轮相互可转动抵持，所述弹性件弹性抵推所述抵持件。
  15. 根据权利要求14所述的转轴装置，其特征在于，所述第一凸轮与所述第二凸轮之间的摩擦扭力大于所述柔性件的反弹力，以使两个所述侧部支撑件之间定位在特定角度。
  16. 根据权利要求13所述的转轴装置，其特征在于，所述抵持件及所述弹性件套设于所述转动轴，所述限位机构还包括设于所述转动轴远离所述抵推件一端的定位件，所述抵持件位于所述抵推件与所述弹性件之间，所述弹性件远离所述抵持件的一端弹性抵顶所述定位件。
  17. 根据权利要求13所述的转轴装置，其特征在于，每一联动件连接有所述抵推件，每一所述抵推件包括第一凸轮；所述抵持件包括两个第二凸轮，两个所述第二凸轮分别滑动地套设于两个所述转动轴，所述联动件随所述转动件沿所述转动轴转动以带动所述第一凸轮相对于所述第二凸轮转动。
  18. 根据权利要求13所述的转轴装置，其特征在于，所述转动轴远离所述弹性件的端部连接于所述定位座。
  19. 一种折叠壳体，其特征在于，所述折叠壳体包括转轴装置及两个框体，所述转轴装置包括支撑机构、转动组件及联动组件，所述支撑机构包括侧部支撑件，所述转动组件包括定位座及设于所述定位座相对两侧的转动机构，所述转动机构包括转动件及连接件，所述转动件的一端转动地连接于定位座，所述转动件相对的另一端转动地连接于所述连接件；所述联动组件包括联动座及联动机构，所述联动机构包括转动地连接于所述联动座相对两侧的联动件，所述联动件远离所述联动座的一端与对应的转动件之间通过第一弧形槽与第一导滑轴的配合连接，所述联动件远离所述联动座的一端与对应的连接件之间通过第二弧形槽与第二导滑轴的配合连接，所述侧部支撑件与对应的连接件之间转动连接，所述侧部支撑件与对应的转动件滑动连接；所述转轴装置位于两个所述框体之间，两个所述框体分别连接于所述转轴装置的两个所述转动机构的连接件，所述框体带动所述转动机构相对于所述定位座转动，所述转动机构相对于所述定位座转动，以带动所述联动件相对于联动座转动以及带动侧部支撑件相对于所述定位座转动并滑动，以使所述支撑机构随所述转动机构及联动机构实现同步折弯或展开。
  20. 一种电子设备，其特征在于，所述电子设备包括柔性件及折叠壳体，转轴装置包括支撑机构、转动组件及联动组件，所述支撑机构包括侧部支撑件，所述转动组件包括定位座及设于所述定位座相对两侧的转动机构，所述转动机构包括转动件及连接件，所述转动件的一端转动地连接于定位座，所述转动件相对的另一端转动地连接于所述连接件；所述联动组件包括联动座及联动机构，所述联动机构包括转动地连接于所述联动座相对两侧的联动件，所述联动件远离所述联动座的一端与对应的转动件之间通过第一弧形槽与第一导滑轴的配合连接，所述联动件远离所述联动座的一端与对应的连接件之间通过第二弧形槽与第二导滑轴的配合连接，所述侧部支撑件与对应的连接件之间转动连接，所述侧部支撑件与对应的转动件滑动连接；所述转动机构相对于所述定位座转动，以带动所述联动件相对于联动座转动以及带动侧部支撑件相对于所述定位座转动并滑动，以使两个所述侧部支撑件同步相互折弯或同步相互展开；所述柔性件设置于所述折叠壳体上，所述柔性件随所述折叠壳体折弯或展平。
PCT/CN2022/143990 2022-02-08 2022-12-30 转轴装置、折叠壳体及电子设备 WO2023151422A1 (zh)

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