CN115076216A - Rotating shaft assembly, folding shell and electronic equipment - Google Patents

Rotating shaft assembly, folding shell and electronic equipment Download PDF

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Publication number
CN115076216A
CN115076216A CN202210761273.2A CN202210761273A CN115076216A CN 115076216 A CN115076216 A CN 115076216A CN 202210761273 A CN202210761273 A CN 202210761273A CN 115076216 A CN115076216 A CN 115076216A
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CN
China
Prior art keywords
base
rotating
transmission
piece
groove
Prior art date
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Granted
Application number
CN202210761273.2A
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Chinese (zh)
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CN115076216B (en
Inventor
廖彬材
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to CN202310341859.8A priority Critical patent/CN117329223A/en
Priority to CN202210761273.2A priority patent/CN115076216B/en
Publication of CN115076216A publication Critical patent/CN115076216A/en
Priority to PCT/CN2022/142747 priority patent/WO2024001127A1/en
Application granted granted Critical
Publication of CN115076216B publication Critical patent/CN115076216B/en
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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
    • F16C11/045—Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681—Details related solely to hinges
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H05K5/0226—Hinges

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Engineering (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

The invention provides a rotating shaft assembly, which comprises a base, a linkage piece, a first rotating piece and a second rotating piece, wherein the linkage piece is connected to the base and can slide relative to the base along a first direction; the second rotating part is rotatably connected to the base, the second rotating part is rotatably connected with the second connecting shaft through a second spiral groove in a matched mode, the second spiral groove is formed in one of the second rotating part and the second connecting part, the second transmitting part is formed in the other of the second rotating part and the second connecting part, and the rotating directions of the first spiral groove and the second spiral groove are opposite. The invention also provides the folding shell and the electronic equipment.

Description

Rotating shaft assembly, folding shell and electronic equipment
Technical Field
The invention relates to the field of electronic equipment, in particular to a rotating shaft assembly for supporting a flexible screen, a folding shell provided with the rotating shaft assembly and electronic equipment provided with the folding shell.
Background
Along with the development of display equipment, flexible display screen that can buckle has appeared now, and the folding screen equipment that has carried on flexible display screen that can buckle also receives more and more liking of people because of its unique molding and diversified function. The folding scheme of the flexible display screen that can buckle at present includes interior folding and outer folding, and the flexible display screen that can buckle of folding screen equipment among the relevant art generally adopts the hinge mechanism to support. However, the existing hinge mechanism generally adopts the meshing of gears to realize linkage, has complex structure and larger volume, and occupies larger internal space of the folding screen device.
Disclosure of Invention
The application provides a pivot subassembly, be provided with pivot subassembly's folding casing, and be equipped with folding casing's electronic equipment.
The application provides a rotating shaft assembly, which comprises a base, a linkage piece, a first rotating piece and a second rotating piece, wherein the linkage piece is connected to the base and can slide relative to the base along a first direction, the linkage piece comprises a first connecting portion and a second connecting portion, the first rotating piece is rotationally connected to the base, the first rotating piece and the first connecting portion are rotationally connected through a first spiral groove in a matched mode with a first rotating portion, the first spiral groove is formed in one of the first rotating piece and the first connecting portion, and the first rotating portion is arranged in the other of the first rotating piece and the first connecting portion; the second rotates the piece and rotationally connect in the base, the second rotate the piece with be connected through the cooperation rotation of second helicla flute and second transmission portion between the second connecting axle, the second helicla flute is located the second rotate the piece with one in the second connecting portion, second transmission portion locates the second rotate the piece with another in the second connecting portion, first helicla flute with the rotation of second helicla flute is to opposite.
The application still provides a folding shell, and it includes pivot subassembly and two frameworks, the pivot subassembly is located two between the framework, the one end that the base was kept away from to the first rotation piece of pivot subassembly is connected in one of them framework, the second rotation piece of pivot subassembly is kept away from the one end of base and is connected in another framework.
The application still provides an electronic equipment, and it includes flexible screen, two frameworks and pivot subassembly, the pivot subassembly is located two between the framework, the one end that the base was kept away from to the first rotation piece of pivot subassembly is connected in one of them framework, the second rotation piece of pivot subassembly is kept away from the one end of base is connected in another framework, flexible screen connect in two the framework reaches the pivot subassembly.
In the rotating shaft assembly, the linkage piece is arranged on the base in a sliding mode, the first rotating piece is connected to the first connecting shaft in a rotating mode through the matching of the first transmission part and the first spiral groove, the second rotating piece is connected to the second connecting shaft in a rotating mode through the matching of the second transmission part and the second spiral groove, and the rotating directions of the first spiral groove and the second spiral groove are opposite. Therefore, the first rotating part and the second rotating part can be synchronously folded or synchronously unfolded relative to the base only by rotating the first transmission part relative to the first spiral groove or rotating the second transmission part relative to the second spiral groove, so that the two side supporting pieces can be synchronously folded or synchronously unfolded. Compared with the prior art in which the linkage is realized through the meshing of the gear and the gear, the rotating shaft assembly omits the gear, the gear mounting frame and other elements, reduces the elements, simplifies the structure, reduces the manufacturing cost, and reduces the volume of the rotating shaft assembly, thereby reducing the internal space of the folding shell occupied by the rotating shaft assembly, being beneficial to the layout of other elements such as a main board or a battery in the electronic equipment, and being beneficial to the miniaturization development of the electronic equipment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic perspective view of an electronic device in a first embodiment of the present application;
FIG. 2 is an exploded perspective view of the folding housing and flexible screen of the electronic device of FIG. 1;
FIG. 3 is an exploded perspective view of the folding housing of FIG. 2;
FIG. 4 is an enlarged view of the spindle assembly of FIG. 3;
FIG. 5 is a perspective view of the pivot assembly of FIG. 4 from another perspective;
FIG. 6 is an exploded perspective view of the spindle assembly of FIG. 4;
FIG. 7 is a perspective view of the pivot assembly of FIG. 6 from another perspective;
FIG. 8 is a further exploded perspective view of the spindle assembly of FIG. 6;
FIG. 9 is a perspective view of the pivot assembly of FIG. 7 from another perspective;
FIG. 10 is an exploded isometric view of the base and linkage assembly of FIG. 8;
FIG. 11 is an exploded perspective view of the base and linkage assembly of FIG. 9;
FIG. 12 is a further exploded perspective view of the base and linkage assembly of FIG. 10;
FIG. 13 is a further exploded perspective view of the base and linkage assembly of FIG. 11
FIG. 14 is a partial perspective cut-away view of the spindle assembly of FIG. 4;
FIG. 15 is a cross-sectional view of the spindle assembly of FIG. 14;
FIG. 16 is another partial perspective cut-away view of the spindle assembly of FIG. 4;
FIG. 17 is a cross-sectional view of the spindle assembly of FIG. 16;
FIG. 18 is another partial perspective cut-away view of the spindle assembly of FIG. 4;
FIG. 19 is a cross-sectional view of the spindle assembly of FIG. 18;
FIG. 20 is another partial perspective cut-away view of the spindle assembly of FIG. 4;
FIG. 21 is a cross-sectional view of the spindle assembly of FIG. 20;
fig. 22 is a schematic perspective view of the electronic device in fig. 1 folded to a certain angle;
fig. 23 is a perspective view of the rotary shaft assembly of fig. 21;
fig. 24 is a perspective view of another perspective of the rotary shaft assembly of fig. 23;
fig. 25 is a partial perspective cross-sectional view of the spindle assembly of fig. 23;
FIG. 26 is a cross-sectional view of the spindle assembly of FIG. 25;
fig. 27 is another partial perspective cross-sectional view of the spindle assembly of fig. 23;
FIG. 28 is a cross-sectional view of the spindle assembly of FIG. 27;
fig. 29 is another partial perspective cross-sectional view of the spindle assembly of fig. 23;
fig. 30 is a cross-sectional view of the rotary shaft assembly of fig. 29;
fig. 31 is another partial perspective cross-sectional view of the spindle assembly of fig. 23;
FIG. 32 is a cross-sectional view of the spindle assembly of FIG. 31;
fig. 33 is a perspective view of the electronic device of fig. 1 in a fully folded state;
fig. 34 is a perspective view of the rotary shaft assembly of fig. 33;
fig. 35 is a perspective view of the spindle assembly of fig. 34 from another perspective;
fig. 36 is a partial perspective cross-sectional view of the spindle assembly of fig. 34;
fig. 37 is a cross-sectional view of the rotary shaft assembly of fig. 36;
FIG. 38 is another partial perspective cut-away view of the spindle assembly of FIG. 34;
FIG. 39 is a cross-sectional view of the spindle assembly of FIG. 38;
FIG. 40 is another partial perspective cut-away view of the spindle assembly of FIG. 34;
FIG. 41 is a cross-sectional view of the spindle assembly of FIG. 40;
FIG. 42 is another partial perspective cross-sectional view of the spindle assembly of FIG. 34;
FIG. 43 is a cross-sectional view of the spindle assembly of FIG. 42;
fig. 44 is a perspective view of a rotary shaft assembly in the second embodiment of the present application;
FIG. 45 is an exploded perspective view of the spindle assembly of FIG. 44;
FIG. 46 is a perspective view of the pivot assembly of FIG. 45 from another perspective;
FIG. 47 is a further exploded perspective view of the spindle assembly of FIG. 45;
FIG. 48 is a perspective view of the pivot assembly of FIG. 47 from another perspective;
FIG. 49 is a perspective view of the pivot assembly of FIG. 44 in a collapsed position;
FIG. 50 is an exploded perspective view of the spindle assembly of FIG. 49;
FIG. 51 is a perspective view of the pivot assembly of FIG. 50 from another perspective;
fig. 52 is an exploded perspective view of a rotary shaft assembly in a third embodiment of the present application;
fig. 53 is a schematic perspective view of a rotating shaft device in a fourth embodiment of the present application;
FIG. 54 is an exploded perspective view of the spindle assembly of FIG. 53;
FIG. 55 is a perspective view of the pivot assembly of FIG. 53 folded to an angle;
FIG. 56 is a perspective view of the pivot assembly of FIG. 53 in a fully collapsed condition;
fig. 57 is a perspective view of a rotary shaft assembly in a fifth embodiment of the present application;
FIG. 58 is an exploded perspective view of the spindle assembly of FIG. 57;
FIG. 59 is a perspective view of the pivot assembly of FIG. 57 folded to an angle;
fig. 60 is a perspective view of the pivot assembly of fig. 57 in a fully collapsed state.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the following description of the various embodiments refers to the accompanying drawings, which illustrate specific embodiments in which the application may be practiced. Directional phrases used in this application, such as, for example, "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "side," and the like, refer only to the orientation of the appended drawings and are, therefore, used herein for better and clearer illustration and understanding of the application and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the application.
In the description of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed at … …" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1 to fig. 3, an electronic device 100 according to a first embodiment of the invention includes a foldable housing 20 and a flexible screen 30 disposed on the foldable housing 20. The flexible screen 30 may be, but not limited to, various flexible components having corresponding functions, such as a flexible display screen, a flexible touch screen, and a flexible touch display screen, or a flexible component fixedly attached with a flexible support plate, such as a flexible display screen attached with a flexible steel plate, a flexible touch screen, and the like. The flexible screen 30 can be bent or flattened with the folding housing 20. The folding shell 20 includes two frames 21 and a rotating shaft assembly 22 connected between the two frames 21, two opposite sides of the rotating shaft assembly 22 are respectively connected to the two frames 21, and the two frames 21 are folded or unfolded through the rotating shaft assembly 22. The flexible screen 30 includes a bendable region 31 corresponding to the pivot assembly 22 and two non-bendable regions 33 connected on opposite sides of the bendable region 31. The flexible screen 30 is connected to the two frames 21 and the rotating shaft assembly 22, in this embodiment, the flexible screen 30 is disposed on the front surfaces of the two frames 21 and the front surface of the rotating shaft assembly 22, specifically, the two non-bending regions 33 of the flexible screen 30 can be respectively fixed on the front surfaces of the two frames 21, and the bending region 31 is attached to the front surface of the rotating shaft assembly 22. The bendable region 31 of the flexible screen 30 can bend or flatten with the pivot assembly 22.
Referring to fig. 4-9, the rotating shaft assembly 22 includes a base 23, a rotating assembly 25 and a supporting mechanism 27, wherein the rotating assembly 25 is connected between the base 23 and the supporting mechanism 27; the rotating assembly 25 includes a linkage 250, a first rotating member 253 and a second rotating member 255, the linkage 250 is slidably connected to the base 23 and can slide relative to the base 23 along a first direction, the first rotating member 253 and the second rotating member 255 are respectively disposed between the linkage 250 and the base 23, and the first rotating member 253 and the second rotating member 255 are respectively rotatably connected to the base 23; the link 250 includes a first connection portion 2501 and a second connection portion 2502, the first rotating member 253 is rotatably connected with the first connection portion 2501 through a first spiral groove, the first spiral groove is provided on one of the first rotating member 253 and the first connection portion 2501, and the first transmission portion is provided on the other of the first rotating member 253 and the first connection portion 2501. The second rotating member 255 and the second connecting portion 2502 are rotatably connected to each other through a second spiral groove formed in one of the second rotating member 255 and the second connecting portion 2502, and a first transmission portion formed in the other of the second rotating member 255 and the second connecting portion 2502, wherein the first spiral groove and the second spiral groove have opposite rotation directions. When the first rotating member 253 rotates relative to the first connecting portion 2501, the first transmission part moves along the first spiral groove so that the linkage member 250 slides relative to the base 23, and simultaneously, the sliding of the base 23 moves the second transmission part along the second spiral groove so that the second rotating member 255 synchronously rotates relative to the second connecting portion 2502; when the second rotating member 255 rotates relative to the second connecting portion 2502, the second transmission portion moves along the second spiral groove so that the link member 250 slides relative to the base 23, and at the same time, the sliding of the base 23 moves the first transmission portion along the first spiral groove so that the first rotating member 253 synchronously rotates relative to the first connecting portion 2501; thereby achieving the simultaneous folding or simultaneous unfolding of the first rotating member 253 and the second rotating member 255.
As shown in fig. 8-13, in the present embodiment, the first connecting portion 2501 and the second connecting portion 2502 are respectively disposed on two opposite sides of the linking member 250, specifically, the first connecting portion 2501 and the second connecting portion 2502 are disposed on two connecting shafts spaced apart from and parallel to the linking member 250, that is, the connecting shafts are respectively disposed on two opposite sides of the linking member 250. The axial line of the first connecting portion 2501 is parallel to the axial line of the second connecting portion 2502 at intervals, a first spiral groove 2503 is formed on the outer peripheral wall of the first connecting portion 2501, a second spiral groove 2504 is formed on the outer peripheral wall of the second connecting portion 2502, a first transmission portion 2531 is formed at one end of the first rotating member 253, a second transmission portion 2551 is formed at one end of the second rotating member 255, and the first transmission portion 2531 and the second transmission portion 2551 are rotatably received in the first spiral groove 2503 and the second spiral groove 2504 respectively. When the first transmission part 2531 rotates relative to the first spiral groove 2503, the first transmission part 2531 pushes the linkage 250 to slide relative to the base 23 along a direction parallel to the axis of the first connection part 2501, and meanwhile, the sliding of the linkage 250 relative to the base 23 drives the second transmission part 2551 to rotate relative to the second connection part 2502 along the second spiral groove 2504, so that the first rotation part 253 and the second rotation part 255 can be synchronously folded or synchronously unfolded relative to the base 23. It should be noted that: in this embodiment, the first spiral groove 2503 and the second spiral groove 2504 have the same elements except that the rotation directions are opposite, and if the first spiral groove 2503 is rotated in the right direction, the second spiral groove 2504 is rotated in the left direction; if the first spiral groove 2503 is left-handed, the second spiral groove 2504 is right-handed.
The supporting mechanism 27 includes two side supporting pieces 271 positioned at opposite sides of the base 23 and a middle supporting piece 273 positioned between the two side supporting pieces 271, wherein one side supporting piece 271 is rotatably connected to the first rotating piece 253 and the other side supporting piece 271 is rotatably connected to the second rotating piece 255; in this embodiment, one side of one of the side supporting members 271 is movably connected to the base 23, and the other side of the one of the side supporting members 271 away from the base 23 is rotatably connected to one end of the first rotating member 253 away from the base 23; one side of the other side supporting member 271 is movably connected to the base 23, and the other side of the other side supporting member 271 away from the base 23 is rotatably connected to one end of the second rotating member 255 away from the base 23. When the first rotating part 253 and the second rotating part 255 of the rotating assembly 25 synchronously rotate relative to the first connecting part 2501 and the second connecting part 2502 respectively and approach each other, the first rotating part 253 and the corresponding side supporting piece 271 rotate relative to each other, and simultaneously the first rotating part 253 drives the side supporting piece 271 to rotate and slide relative to the base 23; the second rotating member 255 and the corresponding side supporting member 271 rotate with each other, and at the same time, the second rotating member 255 drives the side supporting member 271 to rotate and slide relative to the base 23, so as to realize the synchronous mutual folding of the two side supporting members 271. The two frame bodies 21 are synchronously folded with the first rotating piece 253 and the second rotating piece 255 relative to the base 23, and the bendable region 31 of the flexible screen 30 is bent with the folding of the rotating shaft assembly 22; when the support mechanism 27 is in the fully folded state, the two side supports 271 and the middle support 273 enclose a drop-shaped space to accommodate the bendable region 31 of the flexible screen 30. When the first rotating member 253 and the second rotating member 255 of the rotating assembly 25 rotate synchronously relative to the first connecting portion 2501 and the second connecting portion 2502 and move away from each other, the first rotating member 253 and the corresponding side supporting member 271 rotate relative to each other, and the first rotating member 253 drives the side supporting member 271 to rotate and slide relative to the base 23; the second rotating member 255 and the corresponding side supporting member 271 rotate with each other, and at the same time, the second rotating member 255 drives the side supporting member 271 to rotate and slide relative to the base 23, so as to realize the synchronous mutual expansion of the two side supporting members 271, the two frame bodies 21 are synchronously mutually expanded relative to the base 23 along with the first rotating member 253 and the second rotating member 255, respectively, and the bendable region 31 of the flexible screen 30 is unfolded along with the expansion of the rotating shaft assembly 22. When the two side supports 271 are in a fully flattened state, the front faces of the two side supports 271 and the front face of the middle support 273 are coplanar, so that the flexible screen 30 is attached to the front faces of the two side supports 271 and the middle support 273.
In this embodiment, the front surface refers to a surface facing the same direction as the light emitting surface of the flexible screen 30, and the back surface refers to a surface facing away from the light emitting surface of the flexible screen 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 television, a smart watch, a VR head-mounted display, a vehicle-mounted display, and any other products and components with display functions. "connected" in the description of the embodiments of the present invention includes both direct connection and indirect connection, for example, a connection of a and B includes a connection of a and B directly or through a third element C or more other elements. The connection also includes both the case of integral connection and the case of non-integral connection, the integral connection means that A and B are integrally formed and connected, and the non-integral connection means that A and B are non-integrally formed and connected.
The link 250 of the rotating shaft assembly 22 of the present invention is slidably disposed on the base 23, the first rotating member 253 is rotatably connected to the first connecting portion 2501 through the engagement between the first transmission portion 2531 and the first spiral groove 2503, and the second rotating member 255 is rotatably connected to the second connecting shaft 2503 through the engagement between the second transmission portion 2551 and the second spiral groove 2504; synchronous folding or unfolding of the first rotating member 253 and the second rotating member 255 relative to the base 23, and thus synchronous folding or unfolding of the two side supports 271, can be achieved only by rotating the first transmission portion 2531 relative to the first spiral groove 2503 or rotating the second transmission portion 2551 relative to the second spiral groove 2504. Compared with the prior art that linkage can be realized only by meshing of gears and gears, the rotating shaft assembly 22 omits the gears, the gear mounting rack and other elements, thereby reducing the elements, simplifying the structure, reducing the manufacturing cost, and reducing the volume of the rotating shaft assembly 22, so that the rotating shaft assembly 22 occupies the inner space of the folding shell 20, and is beneficial to layout of other elements such as a mainboard or a battery in the electronic equipment 100 and miniaturization development; in addition, the rotating assembly 25 and the base 23 of the rotating shaft assembly 22 occupy a small space of the rotating shaft assembly 22, so that the rotating shaft assembly 22 has a large space for accommodating other components, such as a heat conducting member disposed below the supporting mechanism 27, opposite ends of the heat conducting member are respectively connected to the two frames 21, and heat generated by components such as a main board and a battery of the electronic device 100 during operation is conducted to the two frames 21 through the heat conducting member, which is beneficial to heat dissipation of the electronic device 100.
As shown in fig. 2 and 3, the frame 21 includes a front 211, a back, two opposite side surfaces 214 and two end surfaces 215, the hinge assembly 22 is connected between the two adjacent end surfaces 215 of the two frames 21, the bendable region 31 of the flexible screen 30 is attached to the front of the hinge assembly 22, and the non-bendable region 33 of the flexible screen 30 is connected to the front 211 of the frame 21. One end of the front 211 of each frame 21 close to the rotating shaft assembly 22 is provided with a mounting groove 216, the mounting groove 216 penetrates through the front 211 of the frame 21, and two opposite ends of the mounting groove 216 respectively extend to two opposite side surfaces 214 close to the frame 21. The two opposite sides of the rotating shaft assembly 22 are respectively accommodated in the mounting grooves 216 of the two frame bodies 21, and the first rotating member 253 and the second rotating member 255 are respectively fixedly connected with the corresponding frame bodies 21. The rear surface of the frame 21 is provided with a plurality of receiving spaces (not shown) for mounting electronic components such as circuit boards and batteries.
As shown in fig. 8, the first rotation axis L1 between the first rotating member 253 and the first connecting portion 2501 is parallel to the first direction, the second rotation axis L2 between the second rotating member 255 and the second connecting portion 2502 is parallel to the first direction, and the first rotation axis L1 and the second rotation axis L2 are parallel to or coincide with each other, and the linking member 250 slides relative to the base 23 in the first direction. Further, the center line O of the link 250 is located in the middle between the first rotation axis L1 and the second rotation axis L2, and the center line O is parallel to the first rotation axis L1; namely, the first rotating axis L1 and the second rotating axis L2 are symmetrical with respect to the center line O. As shown in fig. 8, the center line O, the first rotation axis L1, and the second rotation axis L2 all extend in the Y-axis direction in the three-dimensional coordinate system, the plane on which the first rotation axis L1 and the second rotation axis L2 are located is parallel to the XY-plane, and the link 250 slides in the direction parallel to the Y-axis. The first connecting portion 2501 and the second connecting portion 2502 are respectively located on two sides of a center line O of the linkage piece 250, and the center line O of the linkage piece 250 is parallel to the first direction; preferably, the first connection portion 2501 and the second connection portion 2502 are symmetrically disposed about the center line O. In this embodiment, the first rotating member 253 and the second rotating member 255 are symmetrically disposed about the center line O. In other embodiments, the first connecting portion 2501 and the second connecting portion 2502 are symmetrically disposed about the center line O, and the first rotating member 253 and the second rotating member 255 may be disposed in a staggered manner along a direction parallel to the center line O.
Referring to fig. 10-13, the first spiral groove 2503 and the second spiral groove 2504 are symmetrical about the center line O of the link 250, i.e. the widths of the first spiral groove 2503 and the second spiral groove 2504 in the direction parallel to the center line O are the same, and two orthographic projections of the first spiral groove 2503 and the second spiral groove 2504 on the same YZ plane coincide. When the first transmission portion 2531 and the second transmission portion 2551 are received in the first spiral groove 2503 and the second spiral groove 2504, respectively, the first transmission portion 2531 and the second transmission portion 2551 are symmetrical about the center line O of the link 250. The link 250 further includes a connecting portion 2505 and a limiting portion 2506, the first connecting portion 2501 and the second connecting portion 2502 are respectively connected to two opposite sides of the connecting portion 2505, and the limiting portion 2506 is connected to one end of the connecting portion 2505. The connecting portion 2502 may be, but is not limited to, a rectangular plate, a strip-shaped plate, or the like; each of the first connection portion 2501 and the second connection portion 2502 may be, but is not limited to, a semicircular column, a semicircular arc column, or the like; the stopper 2506 may be, but is not limited to, a rectangular plate, a strip-shaped plate, or the like. In this embodiment, the connecting portion 2505 is a rectangular plate, the first connecting portion 2501 and the second connecting portion 2502 are semicircular arc columns, the two semicircular arc columns are respectively disposed on two opposite sides of the rectangular block, and the axial leads of the two semicircular arc columns are respectively overlapped with the first rotating axial lead L1 and the second rotating axial lead L2, that is, the axial leads of the two semicircular arc columns are parallel to each other at intervals. The stopper portion 2506 is a strip-shaped plate, and the stopper portion 2506 is provided at one end of the connecting portion 2505, that is, the stopper portion 2506 extends in the direction of the center line O. The outer peripheral wall of the first connecting portion 2501 is provided with a first spiral groove 2503, and the outer peripheral wall of the second connecting portion 2502 is provided with a second spiral groove 2504; in the present embodiment, the length along which the first spiral groove 2503 extends in the axial direction thereof is equal to the length along which the second spiral groove 2504 extends in the axial direction thereof; specifically, the first spiral groove 2503 is provided in the middle of the first connecting portion 2501, the second spiral groove 2504 is provided in the middle of the second connecting portion 2502, the first spiral groove 2503 includes a circular arc-shaped first outer peripheral surface 2503a and two first inner side surfaces 2503b provided on opposite sides of the first outer peripheral surface 2503a, and the first inner side surfaces 2503b are helical surfaces; the second spiral groove 2504 includes a circular arc-shaped second outer circumferential surface 2504a and two second inner side surfaces 2504b arranged on two opposite sides of the second outer circumferential surface 2504a, and the second inner side surfaces 2504b are spiral surfaces; first inner side surface 2503b has a rotational direction opposite to the rotational direction of second inner side surface 2504 b. In this embodiment, first medial side 2503a and second medial side 2504a are symmetrically disposed along centerline O, and first medial side 2503b and second medial side 2504b on the same side are symmetrically disposed about centerline O.
In other embodiments, the first spiral groove 2503 of the first connecting portion 2501 and the second spiral groove 2504 of the second connecting portion 2502 are offset from each other in a first direction, that is, the first spiral groove 2503 and the second spiral groove 2504 are offset from each other in a direction parallel to the center line O, that is, two orthographic projections of the first spiral groove 2503 and the second spiral groove 2504 on the same YZ plane are offset, and the offset includes two orthographic projections of the first spiral groove 2503 and the second spiral groove 2504 on the same YZ plane. When the first transmission part 2531 and the second transmission part 2551 are respectively received in the first spiral groove 2503 and the second spiral groove 2504, the first transmission part 2531 and the second transmission part 2551 are displaced from each other in a direction parallel to the center line O. Specifically, if the widths of the first spiral groove 2503 and the second spiral groove 2504 in the direction parallel to the center line O are the same, the orthographic projection area of the first spiral groove 2503 on the YZ plane is located at one end of the orthographic projection area of the second spiral groove 2504 on the YZ plane, that is, the orthographic projection area of the first outer peripheral surface 2503a on the YZ plane is located at one end of the orthographic projection area of the second outer peripheral surface 2504a on the YZ plane, and the orthographic projections of the two first inner side surfaces 2503b on the YZ plane are located at one end of the orthographic projections of the two second inner side surfaces 2504b on the YZ plane; or the orthographic projection area of the first spiral groove 2503 on the YZ plane intersects the orthographic projection area of the second spiral groove 2504 on the YZ plane, that is, the orthographic projection area of the first outer peripheral surface 2503a on the YZ plane intersects the orthographic projection area of the second outer peripheral surface 2504a on the YZ plane, and the orthographic projections of the two first inner side surfaces 2503b on the YZ plane and the orthographic projections of the two second inner side surfaces 2504b on the YZ plane are displaced from each other in the direction along the center line O.
In other embodiments, the widths of the first spiral groove 2503 and the second spiral groove 2504 along the direction parallel to the center line O may be different, and the widths of the first transmission portion 2531 and the second transmission portion 2551 along the direction parallel to the center line O may also be the same, so that the first transmission portion 2531 is rotatably accommodated in the first spiral groove 2503, and the two first abutting surfaces 2532 of the first transmission portion 2531 respectively slidably abut against the two first inner side surfaces 2503b of the first spiral groove 2503; the second transmission portion 2551 is rotatably received in the second spiral groove 2504, and the two second abutting surfaces 2552 of the second transmission portion 2551 slidably abut against the two second inner side surfaces 2504b of the second spiral groove 2504, respectively. Specifically, the orthographic projection area of the first spiral groove 2503 on the YZ plane may be located within the orthographic projection area of the second spiral groove 2504 on the YZ plane, that is, the orthographic projection area of the first outer peripheral surface 2503a on the YZ plane is located in the orthographic projection area of the second outer peripheral surface 2504a on the YZ plane, and the orthographic projections of the two first inner side surfaces 2503b on the YZ plane are located between the orthographic projections of the two second inner side surfaces 2504b on the YZ plane; or the orthographic projection area of the second spiral groove 2504 on the YZ plane may be located within the orthographic projection area of the first spiral groove 2503 on the YZ plane, that is, the orthographic projection area of the second outer peripheral surface 2504a on the YZ plane is located in the orthographic projection area of the first outer peripheral surface 2503a on the YZ plane, and the orthographic projections of the two second inner side surfaces 2504b on the YZ plane are located between the orthographic projections of the two first inner side surfaces 2503b on the YZ plane.
In another embodiment, the first connection portions 2501 and the second connection portions 2502 may be disposed at intervals in the link 250 along the first direction, the axis of the first connection portions 2501 overlaps with the axis of the second connection portions 2502, the first spiral groove 2503 of the first connection portion 2501 and the second spiral groove 2504 of the second connection portion 2502 are opposite except for the rotation direction, and the first rotation axis L1 between the first rotating element 253 and the first connection portion 2501 overlaps with the second rotation axis L2 between the second rotating element 255 and the second connection portion 2502; because the first connecting portion 2501 and the second connecting portion 2502 are arranged on the linkage member 250 at intervals along the first direction, the width of the linkage member 250 is reduced, so that the width of the rotating shaft assembly is reduced, the internal space of the folding housing 20 occupied by the rotating shaft assembly is reduced, the layout of other elements such as a main board or a battery in the electronic device 100 is facilitated, and the miniaturization development is facilitated.
When the first transmission portion 2531 is accommodated in the first spiral groove 2503, the two first abutting surfaces 2532 abut against two first inner side surfaces 2503b opposite to the first spiral groove 2503 respectively; when the first transmission portion 2531 rotates relative to the base portion 2501, the first abutting surface 2532 slidably abuts against the corresponding first inner side surface 2503b so as to slide the linkage 250 relative to the base 23. When the second transmission portion 2551 is accommodated in the second spiral groove 2504, the two second abutting surfaces 2552 abut against two second inner side surfaces 2504b of the second spiral groove 2504; when the second transmission portion 2551 rotates relative to the base 23, the second abutting surface 2552 slidably abuts against the corresponding second inner side surface 2504b to slide the linkage 250 relative to the base 23. In this embodiment, the first transmission portion 2531 is a first arc plate disposed at one end of the first rotating member 253, the two first abutting surfaces 2532 are disposed at two opposite sides of the first arc plate, and an inner circumferential surface of the first arc plate is rotatably attached to the first outer circumferential surface 2503a of the first connecting portion 2501; the second transmission portion 2551 is a second arc plate disposed at one end of the second rotating member 255, the two second pushing surfaces 2552 are disposed at two opposite sides of the second arc plate, and an inner circumferential surface of the second arc plate is rotatably attached to the second outer circumferential surface 2504a of the second connecting portion 2502.
The length of the first and second spiral grooves 2503 and 2504 spirally extending in a direction parallel to the sliding direction of the link 250 is proportional to the length of the link 250 sliding with respect to the base 23. That is, the longer the length of the first and second spiral grooves 2503 and 2504 spirally extending in the direction parallel to the center line O, the longer the length of the link 250 sliding with respect to the base 23; the shorter the length of the first spiral groove 2503 and the second spiral groove 2504 spirally extending in the direction parallel to the center line O, the shorter the length of the link 250 sliding with respect to the base 23. Specifically, the turning directions of first inner side surface 2503b and second inner side surface 2504b are opposite, the angle between first inner side surface 2503b and the axis of first connecting portion 2501 is equal to the angle between second inner side surface 2504b and the axis of second connecting portion 2502, and the length of first inner side surface 2503b extending in the direction along the axis of first connecting portion 2501 is equal to the length of second inner side surface 2504b extending in the direction along the axis of second connecting portion 2502; the longer first inner side surface 2503b and second inner side surface 2504b extend in a direction parallel to centerline O, the longer linkage 250 slides relative to base 23; the shorter the length of first inner side surface 2503b and second inner side surface 2504b extending in the direction parallel to center line O, the shorter the length of link 250 sliding with respect to base 23.
The connecting portion 2505 is provided with a space-avoiding through groove 2505a, and the space-avoiding through groove 2505a is used for avoiding the first transmission portion 2531 and the second transmission portion 2551; when the first rotating member 253 and the second rotating member 255 are in a flattened state relative to the link member 250, an end portion of the first transmission portion 2531 far away from the corresponding side supporting member 271 and an end portion of the second transmission portion 2551 far away from the corresponding side supporting member 271 respectively pass through the avoiding through slot 2505a and abut against the back surface of the middle supporting member 273, so that the middle supporting member 273 stably supports the flexible screen 30.
The position-limiting portion 2506 includes a first position-limiting section 2506a, a second position-limiting section 2506b and a middle position-limiting section 2506c arranged along the first direction, the first position-limiting section 2506a is farther away from the first rotating member 253 than the second position-limiting section 2506b, that is, the first position-limiting section 2506a is farther away from the connecting portion 2505 than the second position-limiting section 2506b, and the middle position-limiting section 2506c is located between the first position-limiting section 2506a and the second position-limiting section 2506 b. The length of the first spiral groove 2503 and the second spiral groove 2504 extending spirally in the direction parallel to the sliding direction of the link 250 is proportional to the length of the middle stopper 2506c moving in the direction parallel to the center line O. That is, the longer the first spiral groove 2503 and the second spiral groove 2504 extend spirally in the direction parallel to the center line O, the longer the middle stopper 2506c moves in the direction parallel to the center line O; the shorter the length of the first spiral groove 2503 and the second spiral groove 2504 extending spirally in the direction parallel to the center line O, the shorter the length of the intermediate stopper 2506c moving in the direction parallel to the center line O. By adjusting the length of the spiral groove in the direction parallel to the center line O, the displacement of the link 250 in the direction of the center line O can be increased, thereby achieving a hovering effect of the electronic device 100 at a larger angle.
As shown in fig. 10-13, the first transmission portion 2531 and the base 23 are rotatably connected by the first circular arc-shaped limiting groove and the first limiting portion, so as to limit the movement of the first transmission portion 2531 in the first direction, that is, the movement of the first transmission portion 2531 in the direction of the first rotation axis L1, the axis of the first limiting groove is collinear with the first rotation axis L1, the first limiting groove is disposed in one of the first transmission portion 2531 and the base 23, and the first limiting portion is disposed in the other of the first transmission portion 2531 and the base 23; the second transmitting portion 2552 is rotatably connected to the base 23 through a circular arc-shaped second limiting groove and the second limiting portion, so as to limit the movement of the second transmitting portion 2551 in the first direction, i.e., the second transmitting portion 2251 cannot move in the direction of the second rotating axis L2, the axis of the second limiting groove is collinear with the second rotating axis L2, the second limiting groove is disposed in one of the second transmitting portion 2551 and the base 23, and the second limiting portion is disposed in the other of the second transmitting portion 2551 and the base 23. In this embodiment, the two opposite sides of the front surface of the base 23 are respectively provided with a first limiting groove 230 and a second limiting groove 231, the outer peripheral surface of the first transmission portion 2531 is provided with a first limiting portion 2533, that is, the first limiting portion 2533 is a first protrusion disposed on the outer peripheral surface of the first transmission portion 2531, the first protrusion is slidably received in the first limiting groove 230, and preferably, the first protrusion may be, but not limited to, a cylinder, a sphere, a rectangular column, etc.; the second transmission portion 2551 is provided with a second position-limiting portion 2553 on the outer peripheral surface thereof, i.e., the second position-limiting portion 2553 is a second protrusion disposed on the outer peripheral surface of the second transmission portion 2551, and the second protrusion is slidably received in the second position-limiting groove 231.
Preferably, the front surface of the base 23 is provided with two parallel engaging grooves 232 corresponding to the first connecting portion 2501 and the second connecting portion 2502 of the link 250, and the outer peripheral surface of the first transmission portion 2531 and the outer peripheral surface of the second transmission portion 2551 are rotatably received in the two engaging grooves 232, respectively. In this embodiment, each of the fitting grooves 232 is an arc groove, wherein the axis of one arc groove is collinear with the first rotating axis L1, and the axis of the other arc groove is collinear with the second rotating axis L2; the outer peripheral surface of the first transmission portion 2531 and the outer peripheral surface of the second transmission portion 2551 are rotatably attached to the inner peripheral surfaces of the two engagement grooves 232, respectively. The inner peripheral surfaces of the two fitting grooves 232 are respectively provided with a first limiting groove 230 and a second limiting groove 231, and the first limiting groove 230 and the second limiting groove 231 are symmetrically arranged around the central line O. In other embodiments, the first position-limiting groove 230 and the second position-limiting groove 231 are offset from each other along the center line O.
In other embodiments, the outer peripheral surface of the first transmission portion 2531 is provided with a first limit groove, and the axis of the first limit groove is collinear with the first rotation axis L1; a second limiting groove is arranged on the outer peripheral surface of the second transmission part 2551, and the axis of the second limiting groove is collinear with the second rotating axis L2; the front surface of the base 23 is provided with a first limiting portion and a second limiting portion corresponding to the first limiting groove and the second limiting groove, respectively, and the first limiting portion and the second limiting portion are slidably received in the first limiting groove and the second limiting groove, respectively, so as to limit the first rotating member 253 and the second rotating member 255 from moving along the direction of the central line O relative to the base 23. Preferably, the first and second position-limiting portions are first and second protrusions respectively disposed on the inner peripheral surfaces of the two engaging grooves 232 of the base 23, and the first and second protrusions may be, but are not limited to, cylinders, spheres, rectangular columns, etc.
The link 250 is slidably connected to the base 23 through a guide groove extending in the first direction to allow the link 250 to move in the first direction, the guide groove being provided in one of the base 23 and the link 250, and a guide sliding portion provided in the other of the base 23 and the link 250. In this embodiment, the linkage 250 is provided with a sliding guide portion 2507, the base 23 is provided with a sliding guide groove 234, and the sliding guide groove 234 extends in a direction parallel to the central line O; specifically, the two opposite ends of the first spiral groove 2503 of the peripheral wall of the first connecting portion 2501 are respectively provided with a sliding guide portion 2507, the two opposite ends of the second spiral groove 2504 of the peripheral wall of the second connecting portion 2502 are respectively provided with a sliding guide portion 2507, one side of the front surface of the positioning seat 32 is provided with two sliding guide slots 234 corresponding to the two sliding guide portions 2507 of the first connecting portion 2501, and the other side of the front surface of the positioning seat 32 is provided with two sliding guide slots 234 corresponding to the two sliding guide portions 2507 of the second connecting portion 2502. Specifically, the slide guide portion 2507 is an inverted T-shaped slide guide block, the slide guide groove 234 includes an insertion opening 234a and a slide guide section 234b communicated with the insertion opening 234a, the slide guide section 234b extends along a direction parallel to the central line O, and each slide guide block can slide along the slide guide section 234b after being inserted into the corresponding insertion opening 234 a. Preferably, the opposite ends of the inner circumferential surface of each fitting groove 232 are respectively provided with a slide guide groove 234.
In other embodiments, the outer peripheral wall of the first connection portion 2501 is provided with guide sliding grooves at two opposite ends of the first spiral groove 2503, and each guide sliding groove extends along the axial direction of the first connection portion 2501; and/or the two opposite ends of the outer peripheral wall of the second connecting portion 2502 in the second spiral groove 2504 are respectively provided with a guide slot, and each guide slot extends along the axial direction of the second connecting portion 2502. The front surface of the base 23 is provided with a slide guide portion corresponding to the slide guide slot of the first connecting portion 2501 and/or the slide guide slot of the second connecting portion 2502, and each slide guide portion can slide along the corresponding slide guide slot. Preferably, the inner circumferential surface of the fitting groove 232 is provided with a guide slider corresponding to the guide sliding groove, and the guide slider is slidably received in the corresponding guide sliding groove.
As shown in fig. 8-13, one side of the side supporting member 271 away from the base 23 is rotatably connected to the first rotating member 253 through the engagement of the arc groove and the arc rail, and the other side of the side supporting member 271 away from the base 23 is rotatably connected to the second rotating member 255 through the engagement of the arc groove and the arc rail, and the axis of the arc groove is parallel to the first rotating axis L1. In this embodiment, a first arc groove 2535 is disposed at an end of the first rotating member 253 away from the first transmission portion 2531, a second arc groove 2555 is disposed at an end of the second rotating member 255 away from the second transmission portion 2551, arc rails 2711 are disposed at sides of the two side supporting members 271 away from the base 23, and the two arc rails 2711 are rotatably received in the first arc groove 2535 and the second arc groove 2555, respectively. Specifically, the first rotating member 253 further includes a first link 2536, the first transmission portion 253 is connected to one end of the first link 2536, and the first arc groove 2535 is disposed at the opposite end of the first link 2536; preferably, the first link 2536 is a rectangular plate, the first transmission portion 2531 is connected to an end of the rectangular plate, a protrusion is disposed at an end of the rectangular plate away from the first transmission portion 2531, and the first arc groove 2535 is disposed at a side surface of the first link 2536, that is, the first arc groove 2535 is disposed at a side surface of the protrusion. The second rotating member 255 further includes a second connecting rod 2556, the second transmission portion 255 is connected to one end of the second connecting rod 2556, and the second arc groove 2555 is disposed at the opposite end of the second connecting rod 2556; preferably, the second connecting rod 2556 is a rectangular plate, the second transmission portion 2551 is connected to an end of the rectangular plate, a protrusion is disposed at an end of the rectangular plate away from the second transmission portion 2551, and the second arc groove 2555 is disposed at a side surface of the second connecting rod 2556, that is, the second arc groove 2555 is disposed at a side surface of the protrusion. The fully flattened state means that the front surface of the first link 2536 is coplanar with the front surface of the second link 2556, i.e., the included angle between the front surface of the first link 2536 and the front surface of the second link 2556 is 180 degrees, and the front surfaces of the two side supports 271 and the front surface of the middle support 273 are coplanar; the completely folded state means that the front surface of the first connecting rod 2536 and the front surface of the second connecting rod 2556 are parallel to each other, that is, an included angle between the front surface of the first connecting rod 2536 and the front surface of the second connecting rod 2556 is 0 degree, and the front surfaces of the two side supporting pieces 271 and the front surface of the middle supporting piece 273 enclose a water drop-shaped space; the intermediate folding state is a folding state of the electronic device 100 in which the angle between the front surface of the first link 2536 and the front surface of the second link 2556 is greater than 0 degrees and less than 180 degrees, and the front surfaces of the two side supporting members 271 and the front surface of the middle supporting member 273 enclose a coplanar and droplet-shaped space, that is, the angle between the two frames 21 is in a range of greater than 0 degrees and less than 180 degrees.
In other embodiments, a first arc rail is disposed at an end of the first rotating member 253 far away from the first transmission portion 2531, a second arc rail is disposed at an end of the second rotating member 255 far away from the second transmission portion 2551, arc grooves are disposed at sides of the two side supporting members 271 far away from the base 23, and the first arc rail and the second arc rail are rotatably received in the arc grooves. Specifically, a first arc rail is disposed at an end of the first connecting rod 2536 far away from the first transmission portion 2531, a second arc rail is disposed at an end of the second connecting rod 2556 far away from the second transmission portion 2551, and arc grooves are disposed at one sides of the two side supporting members 271 far away from the base 23.
As shown in fig. 4-9, each side support 271 is movably connected to the base 23 through the arc-shaped adjustment groove and the adjustment shaft, i.e. the adjustment shaft slides and rotates in the corresponding adjustment groove; the axis of the adjusting shaft is parallel to the first rotational axis L1. In this embodiment, an adjusting groove 2713 is disposed on one side of each side supporting member 271 close to the base 23, and adjusting shafts 235 are disposed on two opposite sides of the base 23; when the two side supports 271 are folded or unfolded synchronously with respect to the base 23, the adjustment shafts 235 slide and rotate in the corresponding adjustment grooves 2713. Specifically, one end of the front surface of the base 23 is provided with a clearance groove 2351, two opposite ends of the front surface of the base 23, which are opposite to the clearance groove 2351, are respectively provided with a pair of lugs 2353, and each pair of lugs 2353 are mutually spaced and positioned at two opposite sides of the clearance groove 2451; each adjustment shaft 235 is located between a corresponding pair of tabs 2353, and opposite ends of the adjustment shaft 235 are respectively rotatably connected to ends of the corresponding pair of tabs 2353 away from the front surface of the base 23. The side support 271 includes a side support plate 2710 and an adjusting arm 2714 disposed on one side of the side support plate 2710 close to the base 23, the adjusting arm 2714 extends from the side support plate 2710 to one side of the base 23, the circular arc rail 2711 is disposed on one side of the back surface of the side support plate 2710 far from the adjusting arm 2714, the adjusting slot 2713 is disposed on the adjusting arm 2714, and the adjusting shaft 235 is rotatably and slidably received in the adjusting slot 2713 on the corresponding adjusting arm 2714.
Preferably, the adjustment arm 2714 is an arc-shaped strip, the middle of which is closer to the base 23 than the opposite ends, i.e., the middle of the adjustment arm 2714 is curved to one side of the base 23, and the adjustment slot 2713 extends from one end near the adjustment arm 2714 along the adjustment arm 2714 to the other end, i.e., the middle of the adjustment slot 2713 is curved to one side near the base 23. The adjustment slot 2713 includes first and second positioning segments 2713a and 2713b at opposite ends thereof, the first positioning segment 2713a being closer to the side support plate 2710 than the second positioning segment 2713 b; when the two side supporting pieces 271 are in the completely flattened state, the adjusting shaft 235 is positioned at the first positioning segment 2713a, and the end of the adjusting arm 2714 far away from the side supporting plate 2710 abuts against the back surface of the middle supporting piece 273, so that the front surfaces of the two side supporting pieces 271 and the front surface of the middle supporting piece 273 are coplanar, and the middle supporting piece 273 and the side supporting pieces 271 can stably support the flexible screen to prevent the flexible screen from being damaged due to invagination. When the two side supporting members 271 are in the fully folded state, the adjusting shaft 235 is positioned at the second positioning segment 2713b, and the end of the adjusting arm 2714 far away from the side supporting plate 2710 is far away from the back surface of the middle supporting member 273, so that the front surfaces of the two side supporting members 271 and the front surface of the middle supporting member 273 enclose a drop-shaped accommodating space to conveniently accommodate the bendable region of the flexible screen. Further, the end surface of the adjusting arm 2714 away from the side support plate 2710 is provided with a circular arc surface to facilitate folding or unfolding of the side support 271. The side supporting plate 2710 is provided with a space avoiding opening 2716 at one side close to the base 23, the space avoiding opening 2716 is used for avoiding the corresponding first rotating member 253 and the second rotating member 255, and when the first rotating member 253 and the second rotating member 255 rotate relative to the base 23, the first rotating member 253 and the second rotating member 255 are respectively accommodated in the corresponding space avoiding opening 2716. Preferably, the clearance ports 2716 are disposed adjacent to the corresponding circular arc rails 2711.
The middle support 273 includes a middle support plate 2731, and a sliding guide post 2733 and a stopping post 2735 disposed on the back of the middle support plate 2731, wherein the sliding guide post 2733 and the stopping post 2735 both extend in a direction perpendicular to the first rotation axis L1. The front surface of the base 23 is provided with a sliding guide hole 2361 and a through hole 2363 corresponding to the sliding guide post 2733 and the stopping post 2735, and the sliding guide post 2733 and the stopping post 2735 are slidably disposed through the sliding guide hole 2361 and the through hole 2363, respectively. In this embodiment, one end of the back of the middle support plate 2731 is provided with a stop post 2735 and two guide posts 2733, and the stop post 2735 is located between the two guide posts 2733; a through hole 2363 and two guide sliding holes 2361 are arranged on the front surface of the base 23 near the clearance groove 2351, and the through hole 2363 is positioned between the two guide sliding holes 2361; the stopping posts 2735 are slidably disposed through the through holes 2363, and the two sliding guide posts 2733 are slidably disposed through the two sliding guide holes 2361, respectively.
The support mechanism 27 further comprises a resilient member 275, the resilient member 275 being connected to the base 23 and the intermediate support member 273, the resilient member 275 being adapted to bias the intermediate support member 273 toward the base 23. In this embodiment, the number of the elastic members 275 is two, the two elastic members 275 are respectively connected between the two sliding guide posts 2733 and the base 23, and the two elastic members 275 bias the middle supporting member 273 toward the base 23. The resilient member 275 may be, but is not limited to, a spring, resilient rubber, or spring plastic, etc. The supporting mechanism 27 further includes a clamping member 276, an end portion of the slide guiding column 2733 far from the middle supporting plate 2731 is connected to the clamping member 276, the elastic member 275 is clamped by the clamping member 276 and the base 23, and the elastic member 275 elastically biases the middle supporting plate 2731 to move toward the base 23. Specifically, the clamping member 276 is a strip-shaped clamping plate, clamping holes 2762 are respectively formed at two opposite ends of the clamping member 276, and a stop portion 2764 is formed in the middle of the clamping member 276. The two slide guiding posts 2733 are respectively connected to the two clamping holes 2762 of the clamping member 276, and the end surface of the stopping post 2735 away from the middle supporting plate 2731 is stopped at the stopping portion 2764; the back of the base 23 is provided with a clamping groove 2365, the clamping groove 2365 is suitable for the clamping piece 276, namely the clamping piece 276 can be accommodated in the clamping groove 2365, and preferably, the shape of the clamping groove 2365 is the same as that of the clamping piece 276. The joint groove 2365 communicates two and leads slide hole 2361 and through-hole 2363, specifically, the relative both ends of joint groove 2365 communicate two respectively and lead slide hole 2361, and the middle part and the through-hole 2363 intercommunication of joint groove 2365. In this embodiment, the elastic member 275 is a spring sleeved on the sliding guide post 2733, opposite ends of the spring respectively abut against the clamping member 276 and the base 23, and the elastic member 275 has a pre-elastic force biasing the middle supporting member 273 to move toward the base 23.
As shown in fig. 6 to 9, the shaft assembly 22 further includes a back cover 28, and a back portion of the base 23 is received in the back cover 28. Specifically, the back cover 28 is a strip frame, the back cover 28 has a receiving slot 280, and the base 23 is received in the receiving slot 280 and fixedly connected to the back cover 28. In this embodiment, the inner surface of the receiving groove 280 of the back cover 28 is provided with a connecting column 281, the connecting column 281 is provided with a locking hole 283 along the axial direction, and the locking member passes through the through hole of the base 23 and is locked with the corresponding locking hole 283, so that the base 23 is fixedly connected to the back cover 28. In other embodiments, the back cover 28 is provided with a glue layer on the inner surface of the receiving slot 280, and the base 23 is connected to the base 23 through the glue layer. In other embodiments, the back cover 28 may also be snap-fit to the back cover 28.
As shown in fig. 8 to 11, the rotating shaft assembly 22 further includes a positioning mechanism 26, and the positioning mechanism 26 includes a positioning member 261 connected to the base 23, and when the linkage member 250 slides relative to the base 23, the linkage member 250 is positioned relative to the base 23 by the engagement between the limiting portion 2506 and the positioning member 261. The end of the limiting portion 2506 away from the connecting portion 2505 slidably abuts against the positioning member 261, and frictional resistance between the limiting portion 2506 and the positioning member 261 enables the linkage member 250 to be positioned relative to the base 23, so that the first rotating member 253 and the second rotating member 255 are positioned relative to the base 23, and hovering of the electronic device 100 is achieved. Specifically, when the positioning piece 261 is positioned at the first position-limiting section 2506a, the first rotating piece 253 and the second rotating piece 255 are in a fully-unfolded state, so that the two side supporting pieces 271 and the middle supporting piece 273 are kept in the fully-unfolded state, and the electronic device 100 is in the fully-unfolded state; when the positioning member 261 is positioned at the second position-limiting segment 2506b, the first rotating member 253 and the second rotating member 255 are in a fully folded state, so that the two side supporting members 271 and the middle supporting member 273 are kept in a droplet-shaped fully folded state, and the electronic device 100 is in a fully folded state; when the positioning member 261 is positioned at the middle position-limiting section 2506c, the first rotating member 253 and the second rotating member 255 are in the middle folding state, so that the two side supporting members 271 can be maintained in any folding state except the fully unfolded state and the fully folded state, and the electronic device 100 is in any hovering state.
In this embodiment, the positioning member 261 includes a fixing portion 2612 and a positioning portion 2614 having elasticity, and the fixing portion 2612 is connected to the positioning portion 2614. When the linkage 250 slides relative to the base 23, the stopper 2506 can push against the positioning portion 2614, so that the positioning portion 2614 is elastically deformed to realize the matching between the stopper 2506 and the positioning member 261. The positioning portion 2614 can be selectively positioned at the first limiting segment 2506a, the middle limiting segment 2506c or the second limiting segment 2506b, so that the rotating shaft assembly 22 is in a fully flattened state, a middle folded state or a fully folded state. The positioning portion 2614 includes an elastic strip 2614a connected to the fixing portion 2612 and a protrusion 2614b disposed on the elastic strip 2614a, and the protrusion 2614b can be selectively positioned on the first limiting section 2506a, the second limiting section 2506b or the middle limiting section 2506c by elastic deformation of the elastic strip 2614 a. Specifically, the fixing portion 2612 is a fixing plate, two opposite sides of the fixing plate are respectively provided with a positioning portion 2614, an accommodating groove 2616 extending along the sliding direction of the linkage member 250 is formed between the two positioning portions 2614, and the limiting portion 2506 slidably penetrates through the accommodating groove 2616 and abuts against the protrusion 2614 b; the elastic strip 2614a is generally an L-shaped strip, one end of the elastic strip 2614a is connected to the fixing portion 2612, the other end of the elastic strip 2614a is parallel to the sliding direction of the linkage member 250, the two elastic strips 2614a surround the accommodating groove 2616, and the protrusion 2614b is arranged on the side surface of the elastic strip 2614a facing the accommodating groove 2616. The two opposite sides of the end of the limiting portion 2506 away from the connecting portion 2505 are respectively provided with a first limiting section 2506a, a second limiting section 2506b and a middle limiting section 2506c, the first limiting section 2506a on the same side of the limiting portion 2506 is farther away from the connecting portion 2505 than the second limiting section 2506b, and the middle limiting section 2506c is located between the first limiting section 2506a and the second limiting section 2506 b. When the two protrusions 2614b of the positioning element 261 are respectively positioned at the two first limiting segments 2506a of the limiting portion 2506, the first rotating element 253 and the second rotating element 255 are in a completely unfolded state; when the two protrusions 2614b of the positioning element 261 are respectively positioned on the second position-limiting section 2506b of the position-limiting portion 2506, the first rotating element 253 and the second rotating element 255 are in a fully folded state; when the two protrusions 2614b of the positioning element 261 are respectively positioned at the two middle position-limiting sections 2506c of the position-limiting portion 2506, the first rotating element 253 and the second rotating element 255 are folded.
Further, the fixing portion 2612 and the base 23 can be fixedly connected by, but not limited to, screwing, clipping, gluing, and the like. In this embodiment, the positioning mechanism 26 includes a locking member 263, and the positioning member 261 is fixedly connected to the base 23 through the locking member 263; specifically, the fixing portion 2612 is provided with a through hole 2613, one end of the base 23 is provided with a mounting portion 237, the mounting portion 237 is provided with a mounting hole 2372, and the locking member 263 passes through the through hole 2613 and is connected to the mounting hole 2372, so that the positioning member 261 is fixedly connected to the base 23.
In other embodiments, the positioning member 261 may be replaced by an elastic sheet, one end of which is connected to the base 23, and the limiting portion 2506 slidably abuts against the elastic sheet as the link member 250 moves, so that the elastic sheet is selectively positioned on the first limiting section 2506a, the middle limiting section 2506c or the second limiting section 2506b of the limiting portion 2506, so as to enable the first rotating member 253 and the second rotating member 255 to be in a completely unfolded state, a completely folded state or a completely folded state.
Referring to fig. 4-21, when the rotating shaft assembly 22 is assembled, the first transmission portion 2531 and the second transmission portion 2551 are respectively accommodated in the first spiral groove 2503 and the second spiral groove 2504, such that the inner circumferential surface of the first transmission portion 2531 is slidably attached to the first outer circumferential surface 2503a of the first connecting portion 2501, the two first abutting surfaces 2532 of the first transmission portion 2531 are respectively slidably attached to the two first inner side surfaces 2503b of the first connecting portion 2501, the inner circumferential surface of the second transmission portion 2551 is slidably attached to the second outer circumferential surface 2504a of the second connecting portion 2502, and the two second abutting surfaces 2552 of the second transmission portion 2551 are respectively slidably attached to the two second inner side surfaces 2504b of the second connecting portion 2502. The linkage member 250, the first rotating member 253 and the second rotating member 255 are collectively disposed on the front surface of the base 23, such that the sliding guide portions 2507 of the linkage member 250 are respectively inserted into the corresponding insertion holes 234a and slide into the corresponding sliding guide sections 234b, the first transmission portion 2531 and the second transmission portion 2551 are respectively clamped by the base 23 and the linkage member 250, specifically, the first transmission portion 2531 and the second transmission portion 2551 are respectively received in the two matching grooves 232 of the base 23, the first limiting portion 2533 of the first transmission portion 2531 is slidably inserted into the first limiting groove 230, and the second limiting portion 2553 of the second transmission portion 2551 is slidably inserted into the second limiting groove 231. The positioning member 261 is mounted on the base 23, specifically, the fixing portion 2612 is placed on the mounting portion 237, so that the limiting portion 2506 is accommodated in the accommodating groove 2616 between the two positioning portions 2614 of the positioning member 261, the through hole 2613 of the positioning member 261 is opposite to the mounting hole 2372, and the locking member 263 passes through the through hole 2613 and is locked in the mounting hole 2372. The two side supporting members 271 are respectively disposed on two opposite sides of the front surface of the base 23, wherein the adjusting arm 2714 of one side supporting member 271 is movably sleeved on the corresponding adjusting shaft 235, that is, the adjusting shaft 235 is slidably and rotatably inserted into the adjusting groove 2713 of the adjusting arm 2714, the arc rail 2711 of the side supporting member 271 is rotatably inserted into the first arc groove 2535 of the first rotating member 253, and the first connecting rod 2536 is opposite to the avoiding opening 2716 of the one side supporting member 271; the adjusting arm 2714 of the other side supporting member 271 is movably sleeved on the corresponding adjusting shaft 235, that is, the adjusting shaft 235 is slidably and rotatably inserted into the adjusting groove 2713 of the adjusting arm 2714, the arc rail 2711 of the side supporting member 271 is rotatably inserted into the second arc groove 2555 of the second rotating member 255, and the second connecting rod 2556 is opposite to the avoiding opening 2716 of the other side supporting member 271. Placing the middle supporting piece 273 on the front surface of the base 23 and between the two side supporting pieces 271, so that the stopping post 2735 and the sliding guiding post 2733 of the middle supporting piece 273 are respectively inserted into the through hole 2363 and the sliding guiding hole 2361 of the base 23, and the stopping post 2735 and the sliding guiding post 2733 are respectively extended into the clamping groove 2365; two elastic pieces 275 are respectively sleeved on the two sliding guide posts 2733 from the clamping grooves 2365, the clamping pieces 276 are accommodated in the clamping grooves 2365, the end parts, far away from the middle support plate 2731, of the two sliding guide posts 2733 are respectively clamped in the two clamping holes 2762 of the clamping pieces 276, the elastic pieces 275 are clamped by the clamping pieces 276 and the base 23, and the elastic pieces 275 have elastic force for biasing the middle support piece 273 to move towards the base 23. The base 23 is received in the receiving groove 280 of the back cover 28, and the base 23 is fixedly connected to the back cover 28.
When the two side supporting members 271 are in a completely flattened state, the two adjusting shafts 235 are respectively positioned at the first positioning segments 2713a of the two side supporting members 271, the end portions of the two adjusting arms 2714 respectively abut against the back surface of the middle supporting plate 2731, the elastic member 275 is pressed to be elastically deformed, the end portion of the first transmission portion 2531 far away from the first connecting rod 2536 penetrates through the avoiding through groove 2505a of the linking member 250 and abuts against the back surface of the middle supporting plate 2731, the end portion of the second transmission portion 2551 far away from the second connecting rod 2556 penetrates through the avoiding through groove 2505a of the linking member 250 and abuts against the back surface of the middle supporting plate 2731, the distance between the back surface of the middle supporting plate 2731 and the front surface of the base 23 is the largest, and the front surface of the middle supporting member 273 is coplanar with the front surfaces of the two side supporting members 271. The protrusions 2614b of the two positioning portions 2614 are respectively positioned at the two first limiting sections 2506a of the limiting portion 2506 to limit the sliding of the link member 250 relative to the base 23, so that the rotating shaft assembly 22 is kept in a stable and completely flattened state. When the two side supporting pieces 271 are in a completely folded state, the two adjusting shafts 235 are respectively positioned at the second positioning segments 2713b of the two side supporting pieces 271, the end portions of the two adjusting arms 2714 are respectively far away from the back surface of the middle supporting plate 2731, the elastic piece 275 elastically resets to drive the middle supporting piece 273 to move towards the base 23, the end portion of the first transmission portion 2531 far away from the first connecting rod 2536 and the end portion of the second transmission portion 2551 far away from the second connecting rod 2556 are respectively accommodated in the two matching grooves 232 of the base 23, the distance between the back surface of the middle supporting plate 2731 and the front surface of the base 23 is minimum, and the front surface of the middle supporting piece 273 and the front surfaces of the two side supporting pieces 271 enclose a water droplet-shaped space; the protrusions 2614b of the two positioning portions 2614 are respectively positioned at the two second limiting sections 2506b of the limiting portion 2506 to limit the sliding of the link member 250 relative to the base 23, so that the rotating shaft assembly 22 is kept in a stable and fully folded state.
As shown in fig. 14-21, 23-32, and 34-43, when the rotating shaft assembly 22 is bent from the flat state, the first rotating member 253 rotates around the first connecting portion 2501 relative to the base 23 toward the second rotating member 255, the first stopper portion 2533 of the first rotating member 253 slides in the first stopper groove 230, so that the first transmitting portion 2531 rotates around the first rotating axis L1 and cannot move along the first rotating axis L1, and when the first transmitting portion 2531 rotates in the first spiral groove 2503, the two first abutting surfaces 2532 respectively slidably abut against the two first inner side surfaces 2503b of the first connecting portion 2501, so that the linking member 250 slides along the center line O toward the positioning member 261. The guide sliding portions 2507 of the link members 250 slide in the corresponding guide sliding grooves 234, the limiting portions 2506 slidably push the two protrusions 2614b to elastically deform the positioning portions 2614, and the protrusions 2614b slide relative to the corresponding middle limiting sections 2506c after being separated from the corresponding first limiting sections 2506a until the two protrusions 2614b are respectively positioned at the two second limiting sections 2506 b. Meanwhile, the sliding of the link 250 can drive the second transmission portion 2551 in the second spiral groove 2504 to rotate relative to the second connection portion 2502, and the second limiting portion 2553 on the second transmission portion 2551 slides along the second limiting groove 231 of the base 23, so that the second transmission portion 2551 can only rotate around the second rotation axis L2 and cannot slide along the direction of the second rotation axis L2, and therefore, the first link 2536 of the first rotation piece 253 rotates relative to the first connection portion 2501 along with the first transmission portion 2531, and the second link 2556 of the second rotation piece 255 moves close to each other along with the second transmission portion 2551 rotates relative to the second connection portion 2502. Meanwhile, during the rotation of the first rotating member 253 relative to the first connecting portion 2501 and the rotation of the second rotating member 255 relative to the second connecting portion 2502, the first rotating member 253 and the corresponding side supporting member 271 rotate with each other through the engagement between the circular arc rail 2711 and the first circular arc groove 2535, and the second rotating member 255 and the corresponding side supporting member 271 rotate with each other through the engagement between the circular arc rail 2711 and the second circular arc groove 2555, so that the adjusting arms 2714 of the two side supporting members 271 are respectively connected with the two adjusting shafts 235 in a rotating and sliding manner. That is, each adjusting shaft 235 rotates and slides in the corresponding adjusting slot 2713, so that the side supporting members 271 on the two opposite sides of the base 23 are close to each other until the adjusting shaft 235 is limited by the second positioning segment 2713b, the two protrusions 2614b are respectively positioned at the two second limiting segments 2506b, the adjusting arm 2714 gradually releases the propping of the middle supporting plate 2731, and the elastic member 275 biases the middle supporting member 273 to move towards the base 23 until the front surfaces of the two side supporting members 271 and the front surface of the middle supporting member 273 enclose a cross section forming a water droplet shape.
In another bending manner, the second rotating member 255 can rotate relative to the base 23 about the second connecting portion 2502 toward the first rotating member 253, the second stopper portion 2553 of the second rotating member 255 slides in the second stopper groove 231, so that the second transmission portion 2551 rotates about the second rotation axis L2 and cannot move along the second rotation axis L2, and when the second transmission portion 2551 rotates in the second spiral groove 2504, the two second abutting surfaces 2552 respectively slidably abut against the two second inner side surfaces 2504b of the second connecting portion 2502, so that the linkage member 250 slides along the center line O. The guide sliding portions 2507 of the link members 250 slide in the corresponding guide sliding grooves 234, the limiting portions 2506 slidably push the two protrusions 2614b to elastically deform the positioning portions 2614, and the protrusions 2614b slide relative to the corresponding middle limiting sections 2506c after being separated from the corresponding first limiting sections 2506a until the two protrusions 2614b are respectively positioned at the two second limiting sections 2506 b. Meanwhile, the sliding of the link 250 can drive the first transmission portion 2531 in the first spiral groove 2503 to rotate relative to the first connection portion 2501, and the first limiting portion 2533 on the first transmission portion 2531 slides along the first limiting groove 230 of the base 23, so that the first transmission portion 2531 can only rotate around the first rotation axis L1 and cannot slide along the direction of the first rotation axis L1, and thus the second link 2556 of the second rotation member 255 can move close to each other as the second transmission portion 2551 rotates relative to the second connection portion 2502 and the first link 2536 of the first rotation member 253 rotates relative to the first connection portion 2501. Meanwhile, in the process that the first rotating piece 253 rotates relative to the first connecting portion 2501 and the second rotating piece 255 is opposite to the second connecting portion 2502, the first rotating piece 253 and the corresponding side supporting piece 271 rotate with each other through the matching of the circular arc rail 2711 and the first circular arc groove 2535, and the second rotating piece 255 and the corresponding side supporting piece 271 rotate with each other through the matching of the circular arc rail 2711 and the second circular arc groove 2555, so that the adjusting arms 2714 of the two side supporting pieces 271 are respectively connected with the two adjusting shafts 235 in a rotating and sliding manner. That is, each adjusting shaft 235 rotates and slides in the corresponding adjusting slot 2713, so that the side supporting members 271 on the two opposite sides of the base 23 are close to each other until the adjusting shaft 235 is limited by the second positioning segment 2713b, the two protrusions 2614b are respectively positioned at the two second limiting segments 2506b, the adjusting arm 2714 gradually releases the propping of the middle supporting plate 2731, and the elastic member 275 biases the middle supporting member 273 to move towards the base 23 until the front surfaces of the two side supporting members 271 and the front surface of the middle supporting member 273 enclose a cross section forming a water droplet shape.
In another bending manner, the first rotating member 253 and the second rotating member 255 can simultaneously rotate around the first connecting portion 2501 and the second connecting portion 2502 in opposite directions relative to the base 23, the two side supporting members 271 respectively rotate relative to the first rotating member 253 and the second rotating member 255, and the two side supporting members 271 respectively move relative to the base 23, that is, the two adjusting shafts 235 respectively rotate and slide in the two adjusting slots 2713, so that the two side supporting members 271 are drawn close to each other until each adjusting shaft 235 is limited to the corresponding second positioning segment 2713 b; meanwhile, the first abutting surface 2532 of the first transmission portion 2531 and the second abutting surface 2552 of the second transmission portion 2551 synchronously abut against the first inner side surface 2503b and the second inner side surface 2504b respectively, so that the linkage member 250 slides relative to the base 23 along the direction of the central line O until the two protrusions 2614b are positioned at the two second limiting sections 2506b respectively; the adjustment arm 2714 gradually releases the center support plate 2731 from abutment, and the resilient member 275 biases the center support 273 toward the base 23 until the front surfaces of the two side supports 271 and the front surface of the center support 273 enclose a cross-section in the form of a drop.
In the process of bending the two side supporting pieces 271 relative to the base 23, the circular arc rails 2711 on the two side supporting pieces 271 simultaneously rotate in the first circular arc groove 2535 of the first rotating piece 253 and the second circular arc groove 2555 of the second rotating piece 255 respectively, and simultaneously, the two adjusting shafts 235 simultaneously rotate and slide in the two adjusting grooves 2713 respectively, specifically, the adjusting shafts 235 are displaced from the first positioning segment 2713a to the second positioning segment 2713b, the two adjusting arms 2714 gradually release the middle supporting plate 2731 from abutting, and the elastic piece 275 is elastically reset to drive the middle supporting plate 2730 to gradually move towards the base 23; meanwhile, the first transmission portion 2531 and the second transmission portion 2551 rotate synchronously in the first spiral groove 2503 and the second spiral groove 2504, respectively, the first abutting surface 2532 and the second abutting surface 2552 slidably abut against the first inner side surface 2503b and the second inner side surface 2504b, respectively, so that the link member 250 gradually moves toward the positioning member 261 along the direction of the central line O, the limiting portion 2506 slidably abuts against the protrusion 2614b to elastically deform the elastic strip 2614a, and the protrusion 2614b separates from the first limiting section 2506a and then slides relative to the middle limiting section 2506c until the protrusion 2614b is positioned at the second limiting section 2506 b. By rotating the first rotating part 253 around the first connecting part 2501 to drive the linkage part 250 to slide relative to the base 23, the linkage part 250 synchronously drives the second rotating part 255 to rotate around the second connecting part 2502, so that the first rotating part 253 and the second rotating part 255 are synchronously folded; or the second rotating part 255 rotates around the second connecting part 2502 to drive the linkage 250 to slide relative to the base 23, and the linkage 250 synchronously drives the first rotating part 253 to rotate around the first connecting part 2501, so that the first rotating part 253 and the second rotating part 255 are synchronously folded. Therefore, the linkage mechanism of the rotating shaft assembly 22 is realized without adopting the meshing of gears, so that the structure of the rotating shaft assembly 22 is simple, the manufacturing cost is low, the integral volume of the rotating shaft assembly 22 is reduced, and the miniaturization development of products is facilitated; secondly, when the projection 2614b slides relative to the middle limiting section 2506c, the frictional resistance between the positioning piece 261 and the limiting part 2506 positions the linkage piece 250 relative to the base 23, so that the first rotating piece 253 is positioned at any angle between 0 degrees and 90 degrees relative to the base 23 and the second rotating piece 255 is positioned at any angle between 0 degrees and 90 degrees relative to the base 23; meanwhile, the side support 271 is positioned at any angle between 0 and 120 degrees relative to the base 23, that is, the included angle between the front surface of the side support 271 and the front surface of the base 23 ranges between 0 and 120 degrees, so that the electronic device 100 can realize hovering at a larger angle.
When the rotating shaft assembly 22 is unfolded from the fully folded state, the movement process of each component is the reverse of that when the rotating shaft assembly 22 is bent from the unfolded state, and the description is omitted.
Referring to fig. 1-4, the installed rotating shaft assembly 22 is disposed between the two frames 21, and two opposite sides of the rotating shaft assembly 22 are fixedly connected to the two frames 21, respectively. Specifically, the side supporting members 271 on the two opposite sides of the back cover 28 are respectively received in the mounting grooves 216 of the two frame bodies 21, and one end of the first rotating member 253 away from the base 23 is connected to one of the frame bodies 21, and one end of the second rotating member 255 away from the base 23 is connected to the other frame body 21. At this time, the front faces 211 of the two frames 21, the front faces of the two side supporters 271, and the front face 2311 of the middle supporter 273 are coplanar. The back of the flexible screen 30 is connected to the front 211 of the two frames 21 and the front of the rotating shaft assembly 22; specifically, the bendable region 31 is attached to the front surfaces of the two side supporters 271 and the front surface of the middle supporter 273 of the pivot assembly 22, and the two non-bendable regions 33 are attached to the front surfaces 211 of the two frames 21, respectively. Because the rotating shaft assembly 22 can be synchronously flattened or folded only by matching the base 23, the linkage member 250, the first rotating member 253 and the second rotating member 255, the rotating shaft assembly 22 has fewer elements, simple structure and low manufacturing cost, occupies a small internal space of the back cover 28, and is beneficial to leaving enough space for placing heat dissipation materials, flexible flat cables or other elements and the like in the back cover 28. Next, since the entire volume of the rotating shaft assembly 22 is small, the internal space occupied by the rotating shaft assembly 22 in the housing 20 is reduced, which is advantageous for layout of other elements such as a main board and a battery, and is advantageous for miniaturization and thinning of the electronic apparatus 100.
Referring to fig. 22-43, when the electronic device 100 is bent, a bending force is applied to at least one of the two frame bodies 21 of the electronic device 100, so that the first rotating member 253 and the second rotating member 255 connected to the two frame bodies 21 rotate relative to the base 23 and rotate in a direction of approaching each other, one side of the side supporting member 271 away from the base 23 rotates relative to the first rotating member 253, and one of the side supporting pieces 271 is connected with the base 23 in a sliding manner by the matching rotation of the adjusting shaft 235 and the adjusting groove 2713, and the side of the other side supporting piece 271 away from the base 23 rotates relative to the second rotating piece 255, and the other side support 271 is connected with the base 23 in a rotating and sliding manner through the matching of the adjusting shaft 235 and the adjusting groove 2713, to achieve simultaneous folding of the hinge assembly 22, the bendable region 31 of the flexible screen 30 bends with the hinge assembly 22. Specifically, when a bending force is applied to the frame body 21 connected to the first rotating member 253, the frame body 21 drives the first rotating member 253 to rotate around the first connecting portion 2501 to a side close to the flexible screen 30 relative to the base 23, the first transmission portion 2531 rotates in the first spiral groove 2503 to push the link 250 to slide along the center line O to the positioning member 261, and meanwhile, the sliding of the link 250 drives the second transmission portion 2551 in the second spiral groove 2504 to synchronously rotate around the second connecting portion 2502 relative to the base 23, so that the second rotating member 255 rotates to a side close to the flexible screen 30, and therefore the first rotating member 253 and the second rotating member 255 synchronously rotate relative to the base 23 to approach each other. Meanwhile, the first rotating member 253 and the side supporting member 271 rotate through the cooperation of the circular arc rail 2711 and the first circular arc groove 2535, and the adjusting shaft 235 on the base 23 slides and rotates in the corresponding adjusting groove 2713 of the adjusting arm 2714, i.e. the adjusting shaft 235 slides from the first positioning segment 2713a of the adjusting groove 2713 and rotationally moves to the second positioning segment 2713 b; the second rotating piece 255 and the side supporting pieces 271 rotate through the matching of the circular arc rail 2711 and the second circular arc groove 2555, the adjusting shaft 235 on the base 23 slides and rotates in the adjusting groove 2713 of the corresponding adjusting arm 2714, that is, the adjusting shaft 235 slides from the first positioning segment 2713a of the adjusting groove 2713 and rotationally moves to the second positioning segment 2713b, so that the side supporting pieces 271 on two opposite sides of the base 23 are mutually closed until the adjusting shaft 235 is limited at the second positioning segment 2713b, the positioning piece 261 is positioned at the second limiting segment 2506b, the middle supporting piece 273 moves to one side far away from the flexible screen 30, and the front surfaces of the two side supporting pieces 271 and the front surface of the middle supporting piece 273 enclose a cross section in a water drop shape; the bendable region 31 of the flexible screen 30 bends with the hinge assembly 22 until the bendable region 31 bends into a drop shape, thereby enabling the folding of the electronic device 100.
In the process of bending the electronic device 100, the middle supporting member 273 is drawn close to the base 23, so that a water drop-shaped space enclosed by the front surface of the middle supporting member 273 and the front surfaces of the two side supporting members 271 is large, the bendable region 31 of the flexible screen 30 is conveniently bent to form a water drop shape, the duty ratio of the bendable region 31 after bending is reduced, and the overall thickness of the electronic device 100 can be reduced.
When the electronic device 100 is unfolded, a spreading force is applied to at least one of the two frame bodies 21 of the electronic device 100, so that the first rotating member 253 and the second rotating member 255 connected to the two frame bodies 21 rotate relative to the base 23 and rotate in a direction away from each other, one side of the side supporting member 271 away from the base 23 rotates relative to the first rotating member 253, the side supporting member 271 and the base 23 are rotatably and slidably connected through the matching of the adjusting shaft 235 and the adjusting groove 2713, the side of the other side supporting member 271 away from the base 23 rotates relative to the second rotating member 255, the other side supporting member 271 and the base 23 are rotatably and slidably connected through the matching of the adjusting shaft 235 and the adjusting groove 2713, so that the rotating shaft assembly 22 is spread, and the bendable region 31 of the flexible screen 30 is flattened along with the rotating shaft assembly 22. Specifically, if an unfolding force is applied to the frame body 21 connected to the first rotating member 253, the frame body 21 drives the first rotating member 253 to rotate around the first connecting portion 2501 relative to the base 23 to a side away from the flexible screen 30, the rotation of the first transmission portion 2531 in the first spiral groove 2503 pushes the linkage 250 to slide along the center line O away from the positioning member 261, and meanwhile, the sliding of the linkage 250 drives the second transmission portion 2551 in the second spiral groove 2504 to synchronously rotate around the second connecting portion 2502 relative to the base 23, so that the second rotating member 255 synchronously rotates to a side away from the flexible screen 30, and therefore the first rotating member 253 and the second rotating member 255 synchronously rotate relative to the base 23 and are away from each other; meanwhile, the first rotating member 253 and the side supporting member 271 rotate through the cooperation of the circular arc rail 2711 and the first circular arc groove 2535, and the adjusting shaft 235 on the base 23 slides and rotates in the corresponding adjusting groove 2713 of the adjusting arm 2714, i.e. the adjusting shaft 235 slides and rotationally moves from the second positioning segment 2713b of the adjusting groove 2713 to the first positioning segment 2713 a; the second rotating member 255 and the side supporting members 271 rotate together through the circular arc rail 2711 and the second circular arc groove 2555, the adjusting shaft 235 on the base 23 slides and rotates in the adjusting groove 2713 of the corresponding adjusting arm 2714, that is, the adjusting shaft 235 slides from the second positioning segment 2713b of the adjusting groove 2713 and rotationally moves to the first positioning segment 2713a, so that the side supporting members 271 on the two opposite sides of the base 23 are separated from each other until the adjusting shaft 235 is limited at the first positioning segment 2713a, the positioning member 261 is positioned at the first limiting segment 2506a, the middle supporting member 273 moves to one side close to the flexible screen 30, so that the side supporting members on the two opposite sides of the base 23 are unfolded until the two side supporting members 271 and the base 23 are unfolded, and the bendable region 31 of the flexible screen 30 is unfolded along with the rotating shaft assembly 22 until the flexible screen 30 is completely unfolded, thereby realizing the flattening of the electronic device 100.
In the process of bending the electronic device 100, the middle supporting member 273 is far away from the base 23, so that the middle supporting member 273 supports the bendable region 31 of the flexible screen 30, the front surface of the side supporting plate 271 and the front surface of the middle supporting member 273 are kept coplanar, the side supporting plates can stably support the flexible screen 30, and the flexible screen 30 is prevented from sinking and being damaged.
The rotating shaft assembly 22 of the electronic device 100 of the invention realizes synchronous bending or synchronous unfolding through the rotating assembly 25, and is convenient to operate; since the rotating assembly 25 only includes the link 250 slidably disposed on the base 23, and the first rotating member 253 and the second rotating member 255 rotatably connected to the first connecting portion 2501 and the second connecting portion 2502 of the link 250, respectively, the number of components of the rotating shaft assembly 22 is small, the structure is simple, the manufacturing cost is low, the internal space occupied by the rotating shaft assembly 22 in the housing 20 is reduced, and the layout of other components such as a motherboard or a battery is facilitated. Secondly, when the electronic device 100 is in a fully folded state, the adjusting shaft 235 is limited by the second positioning segment 2713b and the positioning element 261 is positioned by the second positioning segment 2713b of the limiting part 2506, so that each element is not easy to shift when the electronic device 100 falls, and the flexible screen 30 is prevented from being damaged; when the electronic device 100 is in the completely unfolded state, the adjusting shaft 235 is limited by the first positioning segment 2713a, and the positioning element 261 is positioned by the first limiting segment 2506a of the limiting portion 2506, so that each element is not easy to shift when the electronic device 100 falls, and the flexible screen 30 is prevented from being damaged. The rotating shaft assembly 22 realizes the limitation of the linkage 250 relative to the base 23 through the matching of the limiting portion 2506 and the positioning member 261, specifically, the friction resistance between the protrusion 2614b and the middle limiting section 2506c enables the bendable region 31 of the flexible screen 30 to be positioned at any bending angle, so that the two frame bodies 21 can be freely adjusted in the unfolding state, the folding state and the middle folding state, that is, the electronic device 100 can be positioned in the unfolding state, the folding state and any middle folding state, so that the hovering function of 0-180 degrees is provided between the two frame bodies 21 of the electronic device 100, and the hovering angle range is large.
Referring to fig. 44-51, the structure of the rotating shaft assembly 22a in the second embodiment of the present application is similar to that of the rotating shaft assembly 22 in the first embodiment, except that: in the second embodiment, the first transmission portion 2531 of the first rotating member 253a is provided with a first spiral groove 2503, the outer circumferential wall of the first connection portion 2501 is provided with a first transmission block 2508, the first transmission portion 2531 is rotatably sleeved on the first connection portion 2501, and the first transmission block 2508 is slidably received in the first spiral groove 2503; a second spiral groove 2504 is formed on the second transmission portion 2551 of the second rotating element 255a, a second transmission block 2509 is formed on the outer peripheral wall of the second connecting portion 2502, the second transmission portion 2551 is rotatably sleeved on the second connecting portion 2502, and the second transmission block 2509 is slidably accommodated in the second spiral groove 2504; the first spiral groove 2503 is opposite in rotation to the second spiral groove 2504.
When the first transmission part 2531 rotates relative to the first connection part 2501 or the second transmission part 2551 rotates relative to the second connection part 2502, the first transmission part 2531 rotates only around the first connection part 2501 to be limited in the axial direction of the first connection part 2501, that is, the first transmission part 2531 cannot be displaced in the axial direction of the first connection part 2501, and the second transmission part 2551 rotates only around the second connection part 2502 to be limited in the axial direction of the second connection part 2502, that is, the second transmission part 2551 cannot be displaced in the axial direction of the second connection part 2502; when the first transmission part 2531 rotates around the first connection part 2501, the first transmission block 2508 slides along the first spiral groove 2503 to push the linkage 250a to move along an axial direction parallel to the first connection part 2501, and the movement of the linkage 250a drives the second transmission block 2509 to slide along the second spiral groove 2504, so that the second transmission part 2551 rotates around the second connection part 2502, thereby realizing synchronous rotation of the first transmission part 2531 and the second transmission part 2551.
The link 250a and the base 23a are slidably connected by the guide portion 2507 and the guide groove 234, and the length of the first spiral groove 2503 and the second spiral groove 2504 spirally extending in the direction parallel to the sliding direction of the link 250a is proportional to the sliding length of the link 250a relative to the base 23 a. That is, the longer the length of the first and second spiral grooves 2503 and 2504 spirally extending in the direction parallel to the center line O, the longer the length of the link 250a sliding with respect to the base 23 a; the shorter the length of the first spiral groove 2503 and the second spiral groove 2504 spirally extending in the direction parallel to the center line O, the shorter the length of the link 250a sliding on the base 23 a.
Specifically, each of the first connection portion 2501 and the second connection portion 2502 may be, but is not limited to, a cylinder, a semi-arc cylinder, etc., in this embodiment, each of the first connection portion 2501 and the second connection portion 2502 is a semi-cylinder, and the first connection portion 2501 and the second connection portion 2502 are symmetrically disposed about the center line O; a first rotation axis L1 between the first transmission unit 2531 and the first connection unit 2501 is collinear with the axis of the first connection unit 2501, and a second rotation axis L2 between the second transmission unit 2551 and the second connection unit 2502 is collinear with the axis of the first connection unit 2501. The first and second transmission portions 2531 and 2551 at opposite sides of the link 250a may be symmetrically disposed about the center line O, the first and second spiral grooves 2503 and 2504 may be symmetrically disposed about the center line O, and the first and second transmission blocks 2508 and 2509 may be symmetrically disposed about the center line O. The first transmission portion 2531 and the second transmission portion 2551 on opposite sides of the link 250a may be displaced from each other along the center line O, the first spiral groove 2503 and the second spiral groove 2504 may be displaced from each other along the center line O, and the first transmission block 2508 and the second transmission block 2509 may be displaced from each other along the center line O. In this embodiment, the first transmission portion 2531 and the second transmission portion 2551 are symmetrical about the center line O, the first spiral groove 2503 and the second spiral groove 2504 are symmetrical about the center line O, and the first transmission block 2508 and the second transmission block 2509 are symmetrical about the center line O; specifically, the orthographic projection area of the first transmission portion 2531 on the YZ plane coincides with the orthographic projection area of the second transmission portion 2551 on the YZ plane, the orthographic projection area of the first spiral groove 2503 on the YZ plane coincides with the orthographic projection area of the second spiral groove 2504 on the YZ plane, the orthographic projection area of the first transmission block 2508 on the YZ plane coincides with the orthographic projection area of the second transmission block 2509 on the YZ plane, and the first transmission block 2508 and the second transmission block 2509 are slidably accommodated in the first spiral groove 2503 and the second spiral groove 2504, respectively.
The first transmission block 2508 may be, but not limited to, a rectangular block, a stop block, a sphere, etc., and two opposite surfaces of the first transmission block 2508 respectively slidably abut against two opposite inner side surfaces of the first spiral groove 2503; the second transmission block 2509 may be, but not limited to, a rectangular block, a stop block, a sphere, etc., and two opposite surfaces of the second transmission block 2509 slidably abut against two opposite inner sides of the second spiral groove 2504, respectively. In this embodiment, the first transmission block 2508 and the second transmission block 2509 are rectangular blocks, two opposite side surfaces of the first transmission block 2508 respectively slidably abut against two opposite inner side surfaces of the first spiral groove 2503, and the two side surfaces are arranged at intervals in the direction of the first rotation axis L1; two opposite side surfaces of the second transmission block 2509 respectively abut against two opposite inner side surfaces of the second spiral groove 2504 in a sliding manner, and the two side surfaces are arranged at intervals in the direction of the second rotation axis L2.
In other embodiments, the first transmission portion 2531 and the second transmission portion 2551 are offset from each other in the direction along the center line O, the first spiral groove 2503 and the second spiral groove 2504 are offset from each other in the direction along the center line O, and the first transmission block 2508 and the second transmission block 2509 are offset from each other in the direction along the center line O; the first transmission block 2508 and the second transmission block 2509 are slidably received in the first spiral groove 2503 and the second spiral groove 2504, respectively. Specifically, the orthographic projection area of the first transmission part 2531 on the YZ plane is located at one end of the orthographic projection area of the second transmission part 2551 on the YZ plane, the orthographic projection area of the first spiral groove 2503 on the YZ plane is located at one end of the orthographic projection area of the second spiral groove 2504 on the YZ plane, the orthographic projection area of the first transmission block 2508 on the YZ plane is located at one end of the orthographic projection area of the second transmission block 2509 on the YZ plane, and the first transmission block 2508 and the second transmission block 2509 are respectively slidably received in the first spiral groove 2503 and the second spiral groove 2504; alternatively, the orthographic projection area of the first transmission portion 2531 on the YZ plane intersects the orthographic projection area of the second transmission portion 2551 on the YZ plane, the orthographic projection area of the first spiral groove 2503 on the YZ plane intersects the orthographic projection area of the second spiral groove 2504 on the YZ plane, the orthographic projection area of the first transmission block 2508 on the YZ plane intersects the orthographic projection area of the second transmission block 2509 on the YZ plane, and the first transmission block 2508 and the second transmission block 2509 are slidably received in the first spiral groove 2503 and the second spiral groove 2504, respectively.
In other embodiments, the first and second transmission portions 2531 and 2551 on opposite sides of the link 250a are symmetrically disposed about the center line O, the first and second spiral grooves 2503 and 2504 are offset from each other along the center line O, and the first and second transmission blocks 2508 and 2509 are offset from each other along the center line O. Specifically, an orthographic projection area of the first transmission portion 2531 on the YZ plane coincides with an orthographic projection area of the second transmission portion 2551 on the YZ plane; an orthogonal projection area of the first spiral groove 2503 on the YZ plane is located at one end of an orthogonal projection area of the second spiral groove 2504 on the YZ plane, or an orthogonal projection area of the first spiral groove 2503 on the YZ plane intersects an orthogonal projection area of the second spiral groove 2504 on the YZ plane; the orthographic projection area of the first transmission block 2508 on the YZ plane is located at one end of the orthographic projection area of the second transmission block 2509 on the YZ plane, or the orthographic projection area of the first transmission block 2508 on the YZ plane is intersected with the orthographic projection area of the second transmission block 2509 on the YZ plane, and the first transmission block 2508 and the second transmission block 2509 are respectively and slidably accommodated in the first spiral groove 2503 and the second spiral groove 2504.
The first rotating part 253a and the second rotating part 255a on opposite sides of the linking part 250a may be symmetrical or asymmetrical with respect to the center line O; in this embodiment, the first rotating member 253a and the second rotating member 255a are symmetrical with respect to the center line O. The length of the first transmission part 2531 extending along the first rotation axis L1 and the length of the second transmission part 2551 extending along the second rotation axis L2 may be the same or different; in this embodiment, the first transmission portion 2531 extends along the first rotation axis L1 for a length equal to the second transmission portion 2551 extends along the second rotation axis L2.
In this embodiment, the first transmission portion 2531 is a first circular arc plate, an inner peripheral surface of the first circular arc plate is rotatably attached to an outer peripheral surface of the first connection portion 2501, an axial line of the first circular arc plate is collinear with the first rotation axis L1, the first spiral groove 2503 is provided in the first rotation member 253a, specifically, the first spiral groove 2503 is provided in the inner peripheral surface of the first transmission portion 2531, the first transmission block 2508 is provided in an outer peripheral wall of the first connection portion 2501, and when the first transmission portion 2531 is rotatably fitted to the first connection portion 2501, the first transmission block 2508 is slidably received in the first spiral groove 2503. The second transmission portion 2551 is a second circular arc plate, an inner circumferential surface of the second circular arc plate is rotatably attached to an outer circumferential wall of the second connection portion 2502, an axis of the second circular arc plate is collinear with the second rotation axis L2, the second spiral groove 2504 is disposed on the second rotation member 255a, specifically, the second spiral groove 2504 is disposed on the inner circumferential surface of the second transmission portion 2551, the second transmission block 2509 is disposed on the outer circumferential wall of the second connection portion 2502, and when the second transmission portion 2551 is rotatably sleeved on the second connection portion 2502, the second transmission block 2509 is slidably received in the second spiral groove 2504.
The base 23 has a fitting groove 232 and stopping portions 238 disposed at two opposite ends of the fitting groove 232, the first transmission portion 2531 and/or the second transmission portion 2551 are rotatably received in the fitting groove 232, and two opposite ends of the first transmission portion 2531 and/or the second transmission portion 2551 respectively abut against the stopping portions 238. Specifically, the front surface of the base 23a is provided with two mating grooves 232 corresponding to the first connecting portion 2501 and the second connecting portion 2502, the two opposite ends of each mating groove 232 of the base 23a are provided with a stop portion 238, and the first transmission portion 2531 and the second transmission portion 2551 are rotatably received in the two mating grooves 232 respectively; two opposite ends of the first transmission portion 2531 respectively abut against the stop portions 238 to limit the first transmission portion 2531 from moving in the axial direction of the first connection portion 2501 when rotating around the first connection portion 2501; opposite ends of the second transmission portion 2551 respectively abut against the stopping portions 238 to limit the second transmission portion 2551 from moving in the axial direction of the second connection portion 2502 when rotating around the second connection portion 2502. Specifically, the engaging grooves 232 are circular arc grooves, wherein the axis of one engaging groove 232 is collinear with the first rotating axis L1, the axis of the other engaging groove 232 is collinear with the second rotating axis L2, and the stopping portion 238 can be, but is not limited to, a circular arc strip, a rectangular block, etc. disposed at the end of the engaging groove 232.
In other embodiments, the fitting groove 232 may be recessed in the front surface of the positioning seat, that is, the front surface of the fitting groove 232 and the front surface of the positioning seat are not coplanar, so that a step surface is formed between the front surface of the positioning seat and the front surface of the fitting groove 232; the first transmission part 2531 and the second transmission part 2551 are respectively rotatably accommodated in the two fitting grooves 232, and end surfaces of two opposite ends of the first transmission part 2531 respectively slidably abut against two opposite step surfaces of the corresponding fitting groove 232, so as to limit the first transmission part 2531 to move in the axial line direction of the first connection part 2501 when rotating around the first connection part 2501; the end surfaces of the two opposite ends of the second transmission portion 2551 respectively and slidably abut against the two opposite step surfaces of the corresponding matching groove 232, so as to limit the second transmission portion 2551 to move in the axial direction of the second connection portion 2502 when rotating around the second connection portion 2502.
In other embodiments, the first transmission portion 2531 of the first rotating member 253a is rotatably connected with the base 23a through the engagement of a circular arc-shaped first limit groove and a first limit portion, the axis of the first limit groove is collinear with the first rotation axis L1, the first limit groove is disposed on one of the first transmission portion 2531 and the base 23a, and the first limit portion is disposed on the other of the first transmission portion 2531 and the base 23 a; when the first transmission portion 2531 rotates around the first connection portion 2501, the stopper portion slides in the stopper groove to restrict the first transmission portion 2531 from moving in the axial line direction of the first connection portion 2501. The second transmission part 2551 of the second rotating part 255a is rotatably connected with the base 23a through the matching of a circular arc-shaped second limiting groove and the second limiting part, the axis of the second limiting groove is collinear with the second rotating axis L1, the second limiting groove is arranged on one of the second transmission part 2551 and the base 23a, and the second limiting part is arranged on the other of the second transmission part 2551 and the base 23 a; when the second transmission portion 2551 rotates around the second connection portion 2502, the second limiting portion slides in the second limiting groove to limit the second transmission portion 2551 from moving in the direction of the axis of the second connection portion 2502.
The assembly method of the rotary shaft assembly 22a in the second embodiment of the present application is the same as that of the rotary shaft assembly 22 in the first embodiment, and will not be described here.
Referring to fig. 52, the structure of the rotating shaft assembly 22b in the third embodiment of the present application is similar to that of the rotating shaft assembly 22a in the second embodiment, except that: in the third embodiment, the outer peripheral wall of the first connection portion 2501 is provided with a first spiral groove 2503, the first transmission portion 2531 is provided with a first transmission block 2508, the first transmission portion 2531 is rotatably sleeved on the first connection portion 2501, and the first transmission block 2508 is slidably received in the first spiral groove 2503; the outer peripheral wall of the second connecting portion 2502 is provided with a second spiral groove 2504, the second transmission portion 2551 is rotatably sleeved on the second connecting portion 2502, and the second transmission block 2509 is slidably received in the second spiral groove 2504; the first spiral groove 2503 is opposite in rotation to the second spiral groove 2504. When the first transmission portion 2531 and the second transmission portion 2551 are rotatable relative to the first connection portion 2501 and the second connection portion 2502, respectively, and the first transmission portion 2531 is rotatable relative to the first connection portion 2501 or the second transmission portion 2551 is rotatable relative to the second connection portion 2502, the first transmission portion 2531 is only rotatable about the first connection portion 2501 and is limited in the axial direction of the first connection portion 2501, that is, the first transmission portion 2531 cannot be displaced in the axial direction of the first connection portion 2501, and the second transmission portion 2551 is only rotatable about the second connection portion 2502 and is limited in the axial direction of the second connection portion 2502, that is, the second transmission portion 2551 cannot be displaced in the axial direction of the second connection portion 2502; when the first transmission part 2531 rotates around the first connection part 2501, the first transmission block 2508 slides along the first spiral groove 2503 to push the linkage 250a to move along an axial direction parallel to the first connection part 2501, and the movement of the linkage 250a drives the second transmission block 2509 to slide along the second spiral groove 2504, so that the second transmission part 2551 rotates around the second connection part 2502, thereby realizing synchronous rotation of the first transmission part 2531 and the second transmission part 2551.
Referring to fig. 53-54, the structure of the rotating shaft assembly 22c in the fourth embodiment of the present application is similar to that of the rotating shaft assembly 22 in the first embodiment, except that: in the fourth embodiment, the positioning member 261a and the position-limiting portion 2506 are slidably connected through the engagement of a rack and a latch, teeth of the rack are arranged in a first direction, that is, teeth are arranged in a direction parallel to the first rotation axis L1, the rack is provided on one of the positioning member 261a and the position-limiting portion 2506, and the latch is provided on the other of the positioning member 261a and the position-limiting portion 2506; when the latch is positioned at an end of the rack close to the first rotating member 253, the first rotating member 253 and the second rotating member 255 are in a fully-unfolded state; when the latch is located at an end of the rack away from the first rotating member 253, the first rotating member 253 and the second rotating member 255 are in a fully folded state; when the latch is engaged with the teeth of the rack, the first rotating member 253 and the second rotating member 255 are folded. In this embodiment, the positioning member 261a is provided with a rack 2617, the limiting portion 2506 is provided with a latch 2506d, and the limiting portion 2506 slides along the central line O along with the link 250c, so that the latch 2506d can be selectively positioned at one end of the rack 2617 close to the first rotating member 253, at teeth of the rack 2617 and at one end far away from the first rotating member 253, so that the first rotating member 253 and the second rotating member 255 are in a fully-unfolded state, an intermediate folded state and a fully-folded state.
In other embodiments, a rack may be provided on the stopper portion 2506, and teeth of the rack are arranged along the extending direction of the stopper portion 2506; the positioning member 261a is provided with a latch, and the latch is disposed on the protrusion 2614 b. When the limiting portion 2506 slides along the central line O along with the link, the latch can be selectively positioned at one end of the rack close to the first rotating member 253, the teeth of the rack and the end away from the first rotating member 253, so that the first rotating member 253 and the second rotating member 255 can be in a fully unfolded state, an intermediate folded state and a fully folded state.
As shown in fig. 53-56, two opposite protrusions 2614b of the positioning member 261 are provided with racks 2617 facing the side surfaces of the receiving slot 2616, and teeth of the racks 2617 are arranged from the end surface close to the first rotating member 253 to the end surface away from the first rotating member 253 along the direction parallel to the center line O; the two opposite sides of the end of the limiting portion 2506 away from the first rotating member 253 are respectively provided with a latch 2506 d. When the two latches 2506d of the limiting portion 2506 are respectively positioned at the end portions of the two racks 2617 close to the first rotating piece 253, the first rotating piece 253 and the second rotating piece 255 are in a completely unfolded state, that is, an included angle between the first rotating piece 253 and the second rotating piece 255 is 180 degrees; when the two latches 2506d are respectively positioned at the end portions of the two racks 2617 facing away from the first rotating member 253, the first rotating member 253 and the second rotating member 255 are in a fully folded state, that is, the first rotating member 253 is parallel to the second rotating member 255 (the included angle is 0 °); when the two latches 2506d are respectively positioned on the teeth of the two racks 2617, the first rotating member 253 and the second rotating member 255 are in an intermediate folded state, that is, an included angle between the first rotating member 253 and the second rotating member 255 is greater than 0 degree and smaller than 180 degrees.
The length of the first and second spiral grooves 2503 and 2504 extending spirally in the direction parallel to the sliding direction of the link 250c is proportional to the length of the teeth of the rack 2617 arranged in the direction parallel to the center line O. That is, the longer the first and second spiral grooves 2503 and 2504 extend helically in the direction parallel to the center line O, the longer the rack 2617 has teeth arranged in the direction parallel to the center line O; the shorter the length of the first and second spiral grooves 2503 and 2504 extending spirally in the direction parallel to the center line O, the shorter the length of the teeth of the rack 2617 arranged in the direction parallel to the center line O.
The assembly of the rotary shaft assembly 22c in the fourth embodiment of the present application is the same as that of the rotary shaft assembly 22 in the first embodiment, and will not be described here. The rotating shaft assembly 22c in this embodiment realizes folding positioning through the cooperation of the rack 2617 and the latch 2506d, so that the folding positioning of the rotating shaft assembly 22c is more stable.
The fourth embodiment of the present application further includes a folding housing provided with the above-described rotary shaft assembly 22c, and an electronic device. In the fourth embodiment of the present invention, the rotating shaft assembly 22c of the electronic device realizes folding positioning through the cooperation of the rack 2617 and the latch 2506d, when the electronic device is in the completely flattened state, and when the latch 2506d is positioned at one end of the rack 2617 close to the first rotating member 253, the electronic device can be kept in the stable completely flattened state, and when the electronic device falls, each element is not easily displaced, thereby avoiding damage to the flexible screen; when the electronic device is in a fully folded state, the latch 2506d is positioned at one end of the rack 2617 facing away from the first rotating member 253, and when the electronic device falls, all elements are not easy to shift, so that the flexible screen is prevented from being damaged; when the latch 2506d is engaged with the teeth of the rack 2617, the electronic device can be positioned at any bending angle, that is, the bendable region 31 of the flexible screen 30 is positioned at any bending angle, so that the electronic device can be positioned at a completely flattened state, an intermediate folded state and a completely folded state, a hovering function of 0-180 degrees is provided between two frames of the electronic device, and the hovering angle range is large; and the folding hand feeling of the user can be improved.
Referring to fig. 57-60, the structure of the rotating shaft assembly 22d in the fifth embodiment of the present application is similar to that of the rotating shaft assembly 22 in the first embodiment, except that: the structure of the positioning mechanism 26b in the fourth embodiment is different from the positioning mechanism 26 in the first embodiment, and specifically, the positioning mechanism 26b includes a positioning member 261b and an elastic member 265, and the elastic member 265 is disposed between the base 23 and the positioning member 261b and is used for biasing the positioning member 261b to abut against the position-limiting portion 2506 of the linkage 250. Specifically, the elastic member 265 has a pre-elastic force, the elastic member 265 is connected to the positioning element 261b and the base 23, and the elastic member 265 elastically pushes the positioning element 261b to be positioned on the first limiting section 2506a, the second limiting section 2506b or the middle limiting section 2506c of the limiting portion 2506, so that the first rotating element 253 and the second rotating element 255 are in a fully unfolded state, a fully folded state or a middle folded state. In this embodiment, the sliding direction of the elastic member 265 elastically pushing the positioning element 261b is perpendicular to the sliding direction of the linkage 250. In other embodiments, the sliding direction of the elastic member 265 elastically pushing the positioning part 261b may not be perpendicular to the sliding direction of the linkage 250.
In this embodiment, the positioning mechanisms 26b are respectively disposed on two opposite sides of the limiting portion 2506 on the front surface of the base 23, and the positioning members 261b of the two positioning mechanisms 26b can be respectively positioned on the first limiting section 2506a, the second limiting section 2506b or the middle limiting section 2506c on two opposite sides of the limiting portion 2506. The front surface of the base 23 is provided with support frames 266 at two opposite sides of the limit portion 2506, and the two positioning mechanisms 26b are respectively arranged on the two support frames 266; the supporting frame 266 includes a supporting plate 2662 connected to the front surface of the base 23 and a supporting post 2664 connected to the supporting plate 2662, wherein the axis of the supporting post 2664 is perpendicular to the sliding direction of the linking member 250. The positioning member 261b includes a U-shaped sliding portion 2614d and a protrusion 2614b disposed on the sliding portion 2614 d; the elastic member 265 is a spring sleeved on the supporting post 2664, and opposite ends of the spring respectively elastically abut against the supporting plate 2662 and the sliding portion 2614d, so that the protrusion 2614b can be respectively positioned on the first limiting section 2506a, the second limiting section 2506b or the middle limiting section 2506c of the limiting portion 2506.
The foregoing is illustrative of embodiments of the present invention, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the embodiments of the present invention and are intended to be within the scope of the present invention.

Claims (25)

1. A spindle assembly, comprising:
a base;
the linkage piece is connected to the base and can slide relative to the base along a first direction, and comprises a first connecting part and a second connecting part;
the first rotating part is rotationally connected with the base, the first rotating part is rotationally connected with the first connecting part through a first spiral groove in a matched mode, the first spiral groove is formed in one of the first rotating part and the first connecting part, and the first transmission part is formed in the other one of the first rotating part and the first connecting part; and
the second rotates the piece, rotationally connect in the base, the second rotate the piece with be connected through the cooperation rotation of second helicla flute and second transmission portion between the second connecting axle, the second helicla flute is located the second rotates the piece with one in the second connecting portion, second transmission portion locates the second rotates the piece with another in the second connecting portion, first helicla flute with the rotation of second helicla flute is opposite.
2. The pivot assembly of claim 1 wherein when the first rotating member rotates relative to the first connecting portion, the first transmission portion moves along the first helical groove such that the linkage slides relative to the base in the first direction, and wherein sliding the base moves the second transmission portion along the second helical groove such that the second rotating member rotates relative to the second connecting portion.
3. The rotary shaft assembly according to claim 1, wherein a first rotary shaft axis between the first rotary member and the first connecting portion is parallel to the first direction, a second rotary shaft axis between the second rotary member and the second connecting portion is parallel to the first direction, and the first rotary shaft axis and the second rotary shaft axis are parallel to or coincide with each other.
4. The pivot assembly of claim 3 wherein the first and second connecting portions are located on opposite sides of a centerline of the linkage, the centerline of the linkage being parallel to the first direction.
5. The spindle assembly of claim 4, wherein the first and second helical grooves are symmetrical about the centerline, or the first and second rotating members are symmetrical about the centerline.
6. The rotary shaft assembly according to claim 3, wherein the first connecting portion and the second connecting portion are provided at intervals in the link member along the first direction; the first helical groove and the second helical groove are staggered in the first direction.
7. The rotating shaft assembly according to claim 3, wherein the first spiral groove is formed in the peripheral wall of the first connecting portion, the first transmission portion is rotatably accommodated in the first spiral groove, the first transmission portion comprises two spiral first abutting surfaces, and the two first abutting surfaces respectively abut against two first inner side surfaces opposite to the first spiral groove; the peripheral wall of the second connecting part is provided with the second spiral groove, the second transmission part is rotatably accommodated in the second spiral groove and comprises two spiral second abutting surfaces which respectively abut against two opposite inner side surfaces of the second spiral groove.
8. The rotating shaft assembly according to claim 3, wherein the first spiral groove is formed in the first rotating member, a first transmission block is arranged on the outer peripheral wall of the first connecting portion, the first transmission portion is rotatably sleeved on the first connecting portion, and the first transmission block is slidably received in the first spiral groove; the second spiral groove is formed in the second rotating part, a second transmission block is arranged on the outer peripheral wall of the second connecting part, the second transmission part is rotatably sleeved on the second connecting part, and the second transmission block is slidably accommodated in the second spiral groove.
9. The rotating shaft assembly according to claim 3, wherein the first spiral groove is formed in the peripheral wall of the first connecting portion, the first transmission portion is provided with a first transmission block, the first transmission portion is rotatably sleeved on the first connecting portion, and the first transmission block is slidably received in the first spiral groove; the peripheral wall of the second connecting part is provided with the second spiral groove, the second transmission part is rotatably sleeved on the second connecting part, and the second transmission block is slidably accommodated in the second spiral groove.
10. The rotary shaft assembly of claim 8 or 9, wherein the first transmission portion comprises a first circular arc plate, an axis of the first circular arc plate is collinear with the first rotary axis, and the second transmission portion comprises a second circular arc plate, an axis of the second circular arc plate is collinear with the second rotary axis; the base is provided with a matching groove and stopping parts arranged at two opposite ends of the matching groove, the first transmission part and/or the second transmission part are/is rotatably accommodated in the matching groove, and two opposite ends of the first transmission part and/or the second transmission part respectively abut against the stopping parts.
11. The rotary shaft assembly according to claim 3, wherein the first transmission part is rotatably connected to the base through a first limiting groove having a circular arc shape and matching with the first limiting part to limit the movement of the first transmission part in the first direction, an axial line of the first limiting groove is collinear with the first rotary shaft axial line, the first limiting groove is provided on one of the first transmission part and the base, and the first limiting part is provided on the other of the first transmission part and the base; the second transmission part is connected with the base in a rotating mode through the matching of a circular-arc-shaped second limiting groove and the second limiting part so as to limit the second transmission part to move in the first direction, the axis of the second limiting groove is collinear with the second rotating axis, the second limiting groove is formed in one of the second transmission part and the base, and the second limiting part is formed in the other of the second transmission part and the base.
12. The pivot assembly of claim 3 wherein the linkage and the base are slidably connected by engagement of a guide slot extending in the first direction with a guide runner in one of the base and the linkage, the guide runner in the other of the base and the linkage.
13. The rotary shaft assembly of claim 3 further comprising a positioning mechanism including a positioning member connected to the base; the linkage piece further comprises a limiting part, and when the linkage piece slides relative to the base, the linkage piece is limited relative to the base through the matching between the limiting part and the positioning piece.
14. The rotary shaft assembly according to claim 13, wherein the limiting portion comprises a first limiting section, a second limiting section and a middle limiting section arranged along the first direction, and the middle limiting section is located between the first limiting section and the second limiting section;
when the positioning piece is positioned at the first limiting section, the first rotating piece and the second rotating piece are in a completely-unfolded state; when the positioning piece is positioned at the second limiting section, the first rotating piece and the second rotating piece are in a completely folded state; when the locating element is positioned in the middle limiting section, the first rotating piece and the second rotating piece are in a middle folding state.
15. The rotary shaft assembly according to claim 13, wherein one of the positioning member and the limiting portion is provided with a rack, teeth of the rack are arranged in the first direction, and the other of the positioning member and the limiting portion is provided with a latch for mating with the rack;
when the clamping teeth are positioned at one end of the rack, the first rotating piece and the second rotating piece are in a completely flattened state; when the latch is positioned at the other end of the rack, the first rotating piece and the second rotating piece are in a fully folded state; when the latch is engaged with the teeth of the rack, the first rotating member and the second rotating member are folded in the middle.
16. A spindle assembly according to any one of claims 13 to 15 in which the locating member comprises a resilient locating portion; when the linkage piece slides relative to the base, the limiting part can be abutted against and pushed against the positioning part, so that the positioning part is elastically deformed to realize the matching between the limiting part and the positioning part.
17. The rotary shaft assembly according to any one of claims 13 to 15, wherein the positioning mechanism further comprises an elastic member, the elastic member is disposed between the base and the positioning member, and is used for biasing the positioning member to abut against the limiting portion of the linkage member.
18. The rotary shaft assembly of claim 3, further comprising a support mechanism, the support mechanism comprising two side support members located at two opposite sides of the base, each side support member being movably connected to the base through an arc-shaped adjustment slot in cooperation with an adjustment shaft, the axis of the adjustment shaft being parallel to the first axis of rotation; one of the side supporting pieces is rotatably connected to the first rotating member, and the other of the side supporting pieces is rotatably connected to the second rotating member.
19. The pivot assembly of claim 18 wherein the lateral support member includes a lateral support plate and an adjustment arm disposed on a side of the lateral support plate adjacent to the base, the adjustment slot being disposed in the adjustment arm; the adjusting shaft is arranged on the base, and the adjusting shaft is rotatably and slidably accommodated in the adjusting groove.
20. The pivot assembly of claim 19 wherein the adjustment slot includes first and second locating sections at opposite ends thereof, the first locating section being closer to the side support plate than the second locating section; when the two side supporting pieces are in a completely unfolded state, the adjusting shaft is positioned at the first positioning section; when two of the side supports are in a fully folded state, the adjustment shaft is positioned at the second positioning section.
21. The pivot assembly of claim 19 wherein the support mechanism further includes a middle support member positioned between the two side support members, and a resilient member connected to the base and the middle support member for biasing the middle support member toward the base; when the two side supporting pieces are in a completely-unfolded state, the end part, far away from the side supporting plate, of the adjusting arm abuts against the back face of the middle supporting piece, and the front faces of the side supporting pieces and the front face of the middle supporting piece are coplanar.
22. The rotary shaft assembly of claim 21, wherein the middle support member comprises a middle support plate and a slide guide post disposed on a back surface of the middle support plate, the base has a slide guide hole, and the slide guide post slidably penetrates the slide guide hole; the supporting mechanism further comprises a clamping piece, the guide sliding column is far away from the end portion of the middle supporting plate, the clamping piece is clamped at the end portion of the middle supporting plate, and the elastic piece is clamped with the base.
23. The pivot assembly of claim 19 wherein the support mechanism further includes a middle support member between the two side support members, the linkage further including a clearance channel; when the first rotating piece and the second rotating piece are in a completely-unfolded state, the end part of the first transmission part far away from the corresponding side supporting piece and the end part of the second transmission part far away from the corresponding side supporting piece respectively penetrate through the avoiding through groove to abut against the back surface of the middle supporting piece.
24. A folding case comprising a hinge assembly according to any one of claims 1 to 23 and two frames, the hinge assembly being located between the two frames, a first hinge member of the hinge assembly being connected to one of the frames at an end remote from the base, and a second hinge member of the hinge assembly being connected to the other frame at an end remote from the base.
25. An electronic device, comprising a flexible screen, two frames, and the rotating shaft assembly of any one of claims 1-23, wherein the rotating shaft assembly is located between the two frames, one end of the first rotating member of the rotating shaft assembly, which is away from the base, is connected to one of the frames, one end of the second rotating member of the rotating shaft assembly, which is away from the base, is connected to the other frame, and the flexible screen is connected to the two frames and the rotating shaft assembly.
CN202210761273.2A 2022-06-30 2022-06-30 Rotating shaft assembly, folding shell and electronic equipment Active CN115076216B (en)

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CN202310341859.8A CN117329223A (en) 2022-06-30 2022-06-30 Rotating shaft assembly, folding shell and electronic equipment
CN202210761273.2A CN115076216B (en) 2022-06-30 2022-06-30 Rotating shaft assembly, folding shell and electronic equipment
PCT/CN2022/142747 WO2024001127A1 (en) 2022-06-30 2022-12-28 Rotation shaft assembly, folding housing, and electronic apparatus

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