CN115076216B - 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
CN115076216B
CN115076216B CN202210761273.2A CN202210761273A CN115076216B CN 115076216 B CN115076216 B CN 115076216B CN 202210761273 A CN202210761273 A CN 202210761273A CN 115076216 B CN115076216 B CN 115076216B
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China
Prior art keywords
base
rotating
piece
transmission
spiral groove
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Active
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CN202210761273.2A
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Chinese (zh)
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CN115076216A (en
Inventor
廖彬材
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to CN202210761273.2A priority Critical patent/CN115076216B/en
Priority to CN202310341859.8A priority patent/CN117329223A/en
Publication of CN115076216A publication Critical patent/CN115076216A/en
Priority to PCT/CN2022/142747 priority patent/WO2024001127A1/en
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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)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Human Computer Interaction (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 linkage piece comprises a first connecting part and a second connecting part, the first rotating piece is rotationally connected to the base, the first rotating piece and the first connecting part are rotationally connected through the cooperation of a first spiral groove and a first transmission part, the first spiral groove is arranged on one of the first rotating piece and the first connecting part, and the first transmission part is arranged on the other of the first rotating piece and the first connecting part; the second rotating piece is rotationally connected to the base, the second rotating piece is rotationally connected with the second connecting shaft through the cooperation of second spiral groove and second transmission part, the second spiral groove is arranged on one of the second rotating piece and the second connecting part, the second transmission part is arranged on the other of the second rotating piece and the second connecting part, and the rotation directions of the first spiral groove and the second spiral groove are opposite. The invention also provides a folding shell and 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
With the development of display equipment, a bendable flexible display screen is developed, and folding screen equipment with the bendable flexible display screen is increasingly popular with people due to the unique modeling and diversified functions of the folding screen equipment. The folding scheme of the flexible display screen of the present disclosure includes inner folding and outer folding, and the flexible display screen of the folding screen device in the related art is generally supported by a hinge mechanism. However, the existing hinge mechanism generally adopts the meshing of gears to realize linkage, has a complex structure and a large volume, and occupies a large 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 utility model provides a pivot subassembly, it includes base, linkage piece, first rotation piece and second rotation piece, the linkage piece connect in the base and can follow the first direction for the base slides, the linkage piece includes first connecting portion and second connecting portion, first rotation piece rotationally connect in the base, first rotation piece with connect between the first connecting portion rotationally through the cooperation of first helicla flute with first transmission portion, first helicla flute is located first rotation piece with one of first connecting portion, first transmission portion is located first rotation piece with the other of first connecting portion; the second rotating piece is rotationally connected to the base, the second rotating piece is rotationally connected with the second connecting shaft through the cooperation of a second spiral groove and a second transmission part, the second spiral groove is formed in one of the second rotating piece and the second connecting part, the second transmission part is formed in the other of the second rotating piece and the second connecting part, and the rotation directions of the first spiral groove and the second spiral groove are opposite.
The application also provides a folding casing, it includes pivot subassembly and two framework, 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 one end that the base was kept away from to the second rotation piece of pivot subassembly is connected in another framework.
The application also provides electronic equipment, 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 rotating member of pivot subassembly is connected in one of them framework, the second rotating member 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 slidingly arranged on the base, the first rotating piece is rotationally connected to the first connecting shaft through the cooperation of the first transmission part and the first spiral groove, and the second rotating piece is rotationally connected to the second connecting shaft through the cooperation of the second transmission part and the second spiral groove, wherein the rotation directions of the first spiral groove and the second spiral groove are opposite. Therefore, only the first transmission part rotates relative to the first spiral groove or the second transmission part rotates relative to the second spiral groove, so that the first rotation piece and the second rotation piece can be synchronously folded or unfolded relative to the base, and the two side support pieces can be synchronously folded or unfolded. Compared with the prior art that the linkage is realized through the meshing of the gear and the gear, the rotating shaft assembly omits elements such as the gear and the gear mounting frame, 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 the miniaturized development of the electronic equipment.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are of some embodiments of the invention and that other drawings may be derived from these drawings without undue 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 a folding housing and a 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 schematic perspective view of another view of the spindle assembly of FIG. 4;
FIG. 6 is an exploded perspective view of the spindle assembly of FIG. 4;
FIG. 7 is a schematic perspective view of another view of the spindle assembly of FIG. 6;
FIG. 8 is a further exploded perspective view of the spindle assembly of FIG. 6;
FIG. 9 is a schematic perspective view of another view of the spindle assembly of FIG. 7;
FIG. 10 is an exploded perspective 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 cross-sectional 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 cross-sectional 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 cross-sectional 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 cross-sectional 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 of FIG. 1 folded to an angle;
FIG. 23 is a schematic perspective view of the spindle assembly of FIG. 21;
FIG. 24 is a schematic perspective view of another view of the spindle 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 spindle 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 schematic perspective view of the electronic device of FIG. 1 in a fully collapsed state;
FIG. 34 is a schematic perspective view of the spindle assembly of FIG. 33;
FIG. 35 is a schematic perspective view of another view of the spindle assembly of FIG. 34;
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 spindle assembly of FIG. 36;
FIG. 38 is another partial perspective cross-sectional 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 cross-sectional 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 schematic perspective view of a spindle assembly according to a second embodiment of the present application;
FIG. 45 is an exploded perspective view of the spindle assembly of FIG. 44;
FIG. 46 is a schematic perspective view of the spindle 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 schematic perspective view of the spindle assembly of FIG. 47 from another perspective;
FIG. 49 is a schematic perspective view of the spindle assembly of FIG. 44 in a folded condition;
FIG. 50 is an exploded perspective view of the spindle assembly of FIG. 49;
FIG. 51 is a schematic perspective view of another view of the spindle assembly of FIG. 50;
FIG. 52 is an exploded perspective view of a spindle assembly according to a third embodiment of the present application;
fig. 53 is a schematic perspective view of a spindle 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 schematic perspective view of the hinge assembly of FIG. 53 folded to an angle;
FIG. 56 is a schematic perspective view of the spindle assembly of FIG. 53 in a fully collapsed condition;
FIG. 57 is a schematic perspective view of a spindle assembly according to 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 schematic perspective view of the spindle assembly of FIG. 57 folded to an angle;
fig. 60 is a schematic perspective view of the spindle assembly of fig. 57 in a fully folded state.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
Furthermore, the following description of the embodiments refers to the accompanying drawings, which illustrate specific embodiments that can be used to practice the present application. Directional terms referred to in this application, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "side", etc., are merely directions referring to the attached drawings, and thus, directional terms are used for better, more clear description and understanding of the present application, rather than indicating or implying that the apparatus or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "disposed on … …" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
Referring to fig. 1 to 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 is not limited to, flexible display screens, flexible touch display screens, and other flexible components with corresponding functions, or flexible components fixedly attached with a flexible support plate, such as flexible display screens attached with flexible steel plates, flexible touch screens, and the like. The flexible screen 30 can bend or flatten with the folded housing 20. The folding housing 20 includes two frames 21 and a rotating shaft assembly 22 connected between the two frames 21, wherein 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 flattened by the rotating shaft assembly 22. The flexible screen 30 includes a bendable region 31 corresponding to the shaft assembly 22, and two non-bendable regions 33 connected to 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 sides of the two frames 21 and the front side of the rotating shaft assembly 22, specifically, two non-bending areas 33 of the flexible screen 30 can be fixed on the front sides of the two frames 21 respectively, and the bendable areas 31 are attached to the front sides of the rotating shaft assembly 22. The bendable region 31 of the flexible screen 30 can bend or flatten with the spindle 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, wherein 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 linkage 250 includes a first connection portion 2501 and a second connection portion 2502, and the first rotation member 253 and the first connection portion 2501 are rotatably connected by a first spiral groove provided in one of the first rotation member 253 and the first connection portion 2501 and engaged with a first transmission portion provided in the other of the first rotation member 253 and the first connection portion 2501. The second rotating member 255 is rotatably connected to the second connecting portion 2502 by a second spiral groove provided in one of the second rotating member 255 and the second connecting portion 2502, and the second connecting portion 2502 is provided in the other of the second rotating member 255 and the second connecting portion 2502, and the first spiral groove is opposite to the second spiral groove in rotation direction. When the first rotating member 253 rotates relative to the first connecting portion 2501, the first transmitting portion moves along the first spiral groove so that the linkage member 250 slides relative to the base 23, and at the same time, the sliding of the base 23 moves the second transmitting portion 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 transmitting portion moves along the second spiral groove such that the linkage member 250 slides relative to the base 23, and at the same time, the sliding of the base 23 moves the first transmitting portion along the first spiral groove such that the first rotating member 253 rotates synchronously relative to the first connecting portion 2501; thereby achieving synchronous folding or synchronous unfolding of the first rotating member 253 and the second rotating member 255.
As shown in fig. 8-13, in the present embodiment, the opposite sides of the linkage member 250 are respectively provided with a first connection portion 2501 and a second connection portion 2502, and specifically, the first connection portion 2501 and the second connection portion 2502 are two connection shafts disposed in parallel with each other at intervals of the linkage member 250, that is, the opposite sides of the linkage member 250 are respectively provided with a connection shaft. The axial line interval of the first connecting portion 2501 is parallel to the axial line of the second connecting portion 2502, a first spiral groove 2503 is formed in the outer peripheral wall of the first connecting portion 2501, a second spiral groove 2504 is formed in the outer peripheral wall of the second connecting portion 2502, a first transmission portion 2531 is arranged at one end of the first rotating member 253, a second transmission portion 2551 is arranged at one end of the second rotating member 255, and 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 in a rotating mode. When the first transmission portion 2531 rotates relative to the first spiral groove 2503, the first transmission portion 2531 pushes the linkage member 250 to slide relative to the base 23 along a direction parallel to the axis of the first connection portion 2501, and meanwhile, the sliding of the linkage member 250 relative to the base 23 drives the second transmission portion 2551 to rotate relative to the second connection portion 2502 along the second spiral groove 2504, so that the first rotation member 253 and the second rotation member 255 can be folded or unfolded synchronously relative to the base 23. It should be noted that: in this embodiment, the first spiral groove 2503 and the second spiral groove 2504 are identical except for the fact that the directions of rotation are opposite, and if the first spiral groove 2503 is right-handed, the second spiral groove 2504 is left-handed; if the first spiral groove 2503 is left-handed, the second spiral groove 2504 is right-handed.
The supporting mechanism 27 includes two side supporting members 271 located at opposite sides of the base 23 and a middle supporting member 273 located between the two side supporting members 271, wherein one side supporting member 271 is rotatably connected to the first rotating member 253 and the other side supporting member 271 is rotatably connected to the second rotating member 255; in this embodiment, one side of one side supporting member 271 is movably connected with the base 23, and the other side of the one side supporting member 271 away from the base 23 is rotatably connected with one end of the first rotating member 253 away from the base 23; one side of the other side support 271 is movably connected with the base 23, and the other side of the other side support 271 remote from the base 23 is rotatably connected with one end of the second rotation member 255 remote from the base 23. When the first rotating member 253 and the second rotating member 255 of the rotating assembly 25 synchronously rotate relative to the first connecting portion 2501 and the second connecting portion 2502 to be close to 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 rotates with the corresponding side supporting member 271, and the second rotating member 255 drives the side supporting member 271 to rotate and slide with respect to the base 23, so as to realize synchronous mutual folding of the two side supporting members 271. The two frames 21 are respectively folded synchronously 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 along 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 droplet-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 synchronously rotate relative to the first connecting portion 2501 and the second connecting portion 2502 to be 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 synchronous mutual unfolding of the two side supporting members 271, and the two frames 21 are synchronously unfolded with the first rotating member 253 and the second rotating member 255 relative to the base 23, respectively, and the bendable region 31 of the flexible screen 30 is flattened along with unfolding of the rotating shaft assembly 22. When the two side supports 271 are in the 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 fits against the front faces of the two side supports 271 and the middle support 273.
In this embodiment, the front surface refers to the surface facing the light emitting surface of the flexible screen 30, and the back surface refers to the 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 product or component having a display function. "connected" in the description of the embodiments of the present invention is intended to include both direct connection and indirect connection, such as where the a and B connections include direct connection of a and B or other connection through a third element C or more. The connection also comprises two cases of integrated connection and non-integrated connection, wherein the integrated connection means that A and B are integrally formed and connected, and the non-integrated connection means that A and B are non-integrally formed and connected.
The linkage piece 250 of the rotating shaft assembly 22 is slidingly arranged on the base 23, the first rotating piece 253 is rotationally connected to the first connecting part 2501 through the cooperation of the first transmission part 2531 and the first spiral groove 2503, and the second rotating piece 255 is rotationally connected to the second connecting shaft 2503 through the cooperation of the second transmission part 2551 and the second spiral groove 2504; only the rotation of the first transmission portion 2531 with respect to the first spiral groove 2503 or the rotation of the second transmission portion 2551 with respect to the second spiral groove 2504 is required to achieve the synchronous folding or synchronous unfolding of the first rotation member 253 and the second rotation member 255 with respect to the base 23, thereby achieving the synchronous folding or synchronous unfolding of the two side support members 271. Compared with the prior art that the linkage can be realized only through the meshing of the gears, the rotating shaft assembly 22 omits the gears, the gear mounting frame and other elements, so that the elements are reduced, the structure is simplified, the manufacturing cost is reduced, the volume of the rotating shaft assembly 22 is reduced, the internal space of the folding shell 20 occupied by the rotating shaft assembly 22 is reduced, the layout of other elements such as a main board or a battery in the electronic equipment 100 is facilitated, and the miniaturization development is facilitated; in addition, the rotating component 25 and the base 23 of the rotating component 22 have smaller volumes, so that the rotating component 22 occupies a space of the rotating component 22, so that the rotating component 22 has a large amount of space for accommodating other components, such as a heat conducting member disposed below the supporting mechanism 27, two opposite ends of the heat conducting member are respectively connected to the two frames 21, and heat generated when the components such as a motherboard and a battery of the electronic device 100 work is conducted to the two frames 21 through the heat conducting member, thereby facilitating heat dissipation of the electronic device 100.
As shown in fig. 2 and 3, the frame 21 includes a front 211, a back, opposite side 214 and two end 215, the hinge assembly 22 is connected between two adjacent end 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. The front 211 of each frame 21 is provided with a mounting groove 216 near one end of the rotating shaft assembly 22, the mounting groove 216 penetrates through the front 211 of the frame 21, and two opposite ends of the mounting groove 216 extend to two opposite side surfaces 214 near the frame 21 respectively. Opposite sides of the rotating shaft assembly 22 are respectively accommodated in the mounting grooves 216 of the two frames 21, and the first rotating member 253 and the second rotating member 255 are respectively fixedly connected with the corresponding frames 21. The back of the frame 21 is provided with a plurality of accommodating spaces (not shown) for mounting electronic devices such as a circuit board and a battery.
As shown in fig. 8, a first rotational axis L1 between the first rotational member 253 and the first connection portion 2501 is parallel to the first direction, a second rotational axis L2 between the second rotational member 255 and the second connection portion 2502 is parallel to the first direction, and the first rotational axis L1 and the second rotational axis L2 are parallel to or coincide with each other, and the link 250 slides in the first direction with respect to the base 23. Further, a center line O of the linkage 250 is located at a middle portion 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 rotation axis L1 and the second rotation axis L2 are symmetrical about 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 along 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 lie is parallel to the XY plane, and the linkage 250 slides along the direction parallel to the Y-axis. The first connection portion 2501 and the second connection portion 2502 are respectively located at two sides of a center line O of the linkage member 250, and the center line O of the linkage member 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 connection portion 2501 and the second connection 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 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 linkage 250, i.e. the widths of the first spiral groove 2503 and the second spiral groove 2504 along 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 respectively accommodated in the first spiral groove 2503 and the second spiral groove 2504, the first transmission portion 2531 and the second transmission portion 2551 are symmetrical about the center line O of the linkage 250. The linkage 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 connection 2502 may be, but is not limited to, a rectangular plate, a bar plate, etc.; the first connection portion 2501 and the second connection portion 2502 may each be, but are not limited to, a semicircular column, a semicircular arc column, or the like; the stop 2506 may be, but is not limited to, a rectangular plate, a bar plate, etc. In this embodiment, the connection portion 2505 is a rectangular plate, the first connection portion 2501 and the second connection portion 2502 are both semi-circular arc columns, the two semi-circular arc columns are respectively disposed on two opposite sides of the rectangular block, and the axes of the two semi-circular arc columns are respectively coincident with the first rotation axis L1 and the second rotation axis L2, i.e. the axes of the two semi-circular arc columns are mutually spaced and parallel. The limiting portion 2506 is a strip-shaped plate, and the limiting portion 2506 is disposed at one end of the connecting portion 2505, that is, the limiting portion 2506 extends along the direction of the center line O. The outer peripheral wall of the first connection portion 2501 is provided with a first spiral groove 2503, and the outer peripheral wall of the second connection portion 2502 is provided with a second spiral groove 2504; in this embodiment, the length of the first spiral groove 2503 extending in the axial direction thereof is equal to the length of the second spiral groove 2504 extending in the axial direction thereof; specifically, the first spiral groove 2503 is disposed in the middle of the first connection portion 2501, the second spiral groove 2504 is disposed in the middle of the second connection portion 2502, the first spiral groove 2503 includes a circular arc-shaped first outer circumferential surface 2503a and two first inner side surfaces 2503b disposed on opposite sides of the first outer circumferential surface 2503a, and the first inner side surfaces 2503b are spiral surfaces; the second spiral groove 2504 includes a circular arc-shaped second outer circumferential surface 2504a and two second inner side surfaces 2504b provided on opposite sides of the second outer circumferential surface 2504a, the second inner side surfaces 2504b being spiral surfaces; the first inner side 2503b rotates in the opposite direction to the second inner side 2504 b. In this embodiment, the first inner side 2503a and the second inner side 2504a are symmetrically disposed along the center line O, and the first inner side 2503b and the second inner side 2504b at the same end are symmetrically disposed about the center line O.
In other embodiments, the first spiral groove 2503 of the first connection portion 2501 and the second spiral groove 2504 of the second connection portion 2502 are offset from each other in the first direction, i.e., 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, i.e., two orthographic projections of the first spiral groove 2503 and the second spiral groove 2504 on the same YZ plane are offset, which includes two orthographic projections of the first spiral groove 2503 and the second spiral groove 2504 on the same YZ plane being spaced or intersecting. When the first and second transmission portions 2531 and 2551 are respectively accommodated in the first and second spiral grooves 2503 and 2504, the first and second transmission portions 2531 and 2551 are offset 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 circumferential surface 2503a on the YZ plane is located at one end of the orthographic projection area of the second outer circumferential 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 circumferential surface 2503a on the YZ plane intersects the orthographic projection area of the second outer circumferential surface 2504a on the YZ plane, 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 offset 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, the widths of the first transmission portion 2531 and the second transmission portion 2551 along the direction parallel to the center line O may be the same, and it is required to satisfy that the first transmission portion 2531 is rotatably accommodated in the first spiral groove 2503, and the two first pushing surfaces 2532 of the first transmission portion 2531 slidably push the two first inner side surfaces 2503b of the first spiral groove 2503 respectively; the second transmission portion 2551 is rotatably accommodated in the second spiral groove 2504, and two second pushing surfaces 2552 of the second transmission portion 2551 slidably push 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 circumferential surface 2503a on the YZ plane is located within the orthographic projection area of the second outer circumferential 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; alternatively, 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 circumferential surface 2504a on the YZ plane is located within the orthographic projection area of the first outer circumferential 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 other embodiments, the first connection portion 2501 and the second connection portion 2502 may be disposed on the linkage 250 at intervals along the first direction, the axis of the first connection portion 2501 and the axis of the second connection portion 2502 overlap, the first spiral groove 2503 on the first connection portion 2501 and the second spiral groove 2504 on the second connection portion 2502 are opposite in rotation direction, and the first rotation axis L1 between the first rotation member 253 and the first connection portion 2501 and the second rotation axis L2 between the second rotation member 255 and the second connection portion 2502 overlap; since the first connection portion 2501 and the second connection 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 space occupied by the rotating shaft assembly in the folding housing 20 is reduced, the layout of other components such as a motherboard 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 pushing surfaces 2532 respectively push against two first inner side surfaces 2503b opposite to the first spiral groove 2503; when the first transmission portion 2531 rotates relative to the base 23 portion 2501, the first pushing surface 2532 slidably pushes the corresponding first inner side surface 2503b to slide the linkage member 250 relative to the base 23. When the second transmission portion 2551 is accommodated in the second spiral groove 2504, the two second pushing surfaces 2552 respectively push against two second inner side surfaces 2504b opposite to the second spiral groove 2504; when the second transmission portion 2551 rotates relative to the base 23, the second pushing surface 2552 slidably pushes the corresponding second inner side 2504b to slide the linkage member 250 relative to the base 23. In this embodiment, the first transmission portion 2531 is a first circular arc plate disposed at one end of the first rotating member 253, two first pushing surfaces 2532 are respectively disposed on two opposite sides of the first circular arc plate, and an inner peripheral surface of the first circular arc plate is rotatably attached to the first outer peripheral surface 2503a of the first connecting portion 2501; the second transmission portion 2551 is a second circular arc plate provided at one end of the second rotating member 255, and the two second pushing surfaces 2552 are respectively provided at two opposite sides of the second circular arc plate, and an inner circumferential surface of the second circular arc plate is rotatably attached to a second outer circumferential surface 2504a of the second connecting portion 2502.
The length of the first and second spiral grooves 2503 and 2504 extending spirally in a direction parallel to the sliding direction of the linkage member 250 is proportional to the length of the sliding of the linkage member 250 with respect to the base 23. That is, the longer the first and second spiral grooves 2503 and 2504 spirally extend in a direction parallel to the center line O, the longer the linkage 250 slides with respect to the base 23; the shorter the first and second spiral grooves 2503 and 2504 spirally extend 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 rotation directions of the first inner side surface 2503b and the second inner side surface 2504b are opposite, the angle between the first inner side surface 2503b and the axis of the first connecting portion 2501 is equal to the angle between the second inner side surface 2504b and the axis of the second connecting portion 2502, and the length of the first inner side surface 2503b extending in the direction along the axis of the first connecting portion 2501 is equal to the length of the second inner side surface 2504b extending in the direction along the axis of the second connecting portion 2502; the longer the first inner side 2503b and the second inner side 2504b extend in a direction parallel to the center line O, the longer the linkage 250 slides relative to the base 23; the shorter the first inner side 2503b and the second inner side 2504b extend in the direction parallel to the center line O, the shorter the length of the link 250 sliding with respect to the base 23.
The connecting portion 2505 is provided with a avoidance slot 2505a, and the avoidance slot 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 linkage member 250, the end portion of the first transmission portion 2531 away from the corresponding side support member 271 and the end portion of the second transmission portion 2551 away from the corresponding side support member 271 respectively pass through the avoidance position through groove 2505a to abut against the back surface of the middle support member 273, so that the middle support member 273 stably supports the flexible screen 30.
The limiting portion 2506 includes a first limiting segment 2506a, a second limiting segment 2506b and an intermediate limiting segment 2506c disposed along the first direction, the first limiting segment 2506a is further away from the first rotating member 253 than the second limiting segment 2506b, i.e., the first limiting segment 2506a is further away from the connecting portion 2505 than the second limiting segment 2506b, and the intermediate limiting segment 2506c is disposed between the first limiting segment 2506a and the second limiting segment 2506 b. The length of the first and second spiral grooves 2503 and 2504 extending spirally in a direction parallel to the sliding direction of the linkage 250 is proportional to the length of the intermediate stopper 2506c moving in a direction parallel to the center line O. That is, the longer the first spiral groove 2503 and the second spiral groove 2504 spirally extend in the direction parallel to the center line O, the longer the intermediate stopper 2506c moves in the direction parallel to the center line O; the shorter the first spiral groove 2503 and the second spiral groove 2504 spirally extend 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 helical groove in a direction parallel to the center line O, the amount of displacement of the linkage 250 moving in the direction of the center line O can be increased, thereby achieving a greater-angle hover effect of the electronic device 100.
As shown in fig. 10-13, the first transmission portion 2531 is rotatably connected with the base 23 through a circular arc-shaped first limiting groove in cooperation with the first limiting portion, so as to limit the movement of the first transmission portion 2531 in the first direction, that is, the first transmission portion 2531 cannot move in the direction of the first rotation axis L1, the axis line of the first limiting groove is collinear with the first rotation axis L1, the first limiting groove is arranged on one of the first transmission portion 2531 and the base 23, and the first limiting portion is arranged on the other one of the first transmission portion 2531 and the base 23; the second transmission portion 2552 is rotationally connected with the base 23 through a circular arc-shaped second limiting groove in a matching manner with the second limiting portion, so as to limit the movement of the second transmission portion 2551 in the first direction, that is, the second transmission portion 2251 cannot move in the direction of the second rotation axis L2, the axis of the second limiting groove is collinear with the second rotation axis L2, the second limiting groove is arranged on one of the second transmission portion 2551 and the base 23, and the second limiting portion is arranged on the other of the second transmission portion 2551 and the base 23. In this embodiment, the 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, and 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 provided on the outer peripheral surface of the first transmission portion 2531, and the first protrusion is slidingly accommodated in the first limiting groove 230, 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 limiting portion 2553 on an outer peripheral surface thereof, that is, the second limiting portion 2553 is a second protrusion provided on the outer peripheral surface of the second transmission portion 2551, and the second protrusion is slidingly accommodated in the second limiting groove 231, preferably, the second protrusion may be, but not limited to, a cylinder, a sphere, a rectangular column, etc.
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 linkage member 250, and the outer circumferential surface of the first transmission portion 2531 and the outer circumferential surface of the second transmission portion 2551 are rotatably accommodated in the two engaging grooves 232, respectively. In this embodiment, each of the matching grooves 232 is an arc-shaped groove, wherein the axis of one arc-shaped groove is collinear with the first rotation axis L1, and the axis of the other arc-shaped groove is collinear with the second rotation 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 fitted to the inner peripheral surfaces of the two fitting grooves 232, respectively. The inner peripheral surfaces of the two matching grooves 232 are respectively provided with a first limit groove 230 and a second limit groove 231, and the first limit groove 230 and the second limit groove 231 are symmetrically arranged about a central line O. In other embodiments, the first and second limit grooves 230, 231 are offset from each other in a direction along the centerline O.
In other embodiments, the outer peripheral surface of the first transmission portion 2531 is provided with a first limiting groove, and the axial line of the first limiting groove is collinear with the first rotation axial line L1; the outer peripheral surface of the second transmission part 2551 is provided with a second limiting groove, and the axial lead of the second limiting groove is collinear with the second rotation axial lead 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, and the first limiting portion and the second limiting portion are respectively slidably accommodated in the first limiting groove and the second limiting groove, so as to limit the first rotating member 253 and the second rotating member 255 to move along the direction of the central line O relative to the base 23. Preferably, the first and second limiting portions are first and second protrusions respectively provided on the inner peripheral surfaces of the two mating grooves 232 of the base 23, and the first and second protrusions may be, but not limited to, cylinders, spheres, rectangular columns, and the like.
The linkage 250 is slidably connected to the base 23 through a sliding guide groove extending in the first direction so that the linkage 250 can move in the first direction, the sliding guide groove being provided on one of the base 23 and the linkage 250, and the sliding guide portion being provided on the other of the base 23 and the linkage 250. In this embodiment, the linkage member 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 along a direction parallel to the center line O; specifically, the outer peripheral wall of the first connecting portion 2501 is provided with a sliding guide portion 2507 at two opposite ends of the first spiral groove 2503, the outer peripheral wall of the second connecting portion 2502 is provided with a sliding guide portion 2507 at two opposite ends of the second spiral groove 2504, one side of the front surface of the positioning seat 32 is provided with two sliding guide grooves 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 grooves 234 corresponding to the two sliding guide portions 2507 of the second connecting portion 2502. Specifically, the sliding guide portion 2507 is an inverted T-shaped sliding guide, and the sliding guide 234 includes an insertion opening 234a and a sliding guide section 234b communicating with the insertion opening 234a, wherein the sliding guide section 234b extends along a direction parallel to the center line O, and each sliding guide can slide along the sliding guide section 234b after being inserted into the corresponding insertion opening 234 a. Preferably, the inner circumferential surface of each of the fitting grooves 232 is provided at opposite ends thereof with guide grooves 234, respectively.
In other embodiments, the outer peripheral wall of the first connecting portion 2501 is provided with guide grooves at opposite ends of the first spiral groove 2503, and each guide groove extends along the axial direction of the first connecting portion 2501; and/or the outer peripheral wall of the second connecting portion 2502 is provided with guide sliding grooves at two opposite ends of the second spiral groove 2504, respectively, and each guide sliding groove extends along the axial direction of the second connecting portion 2502. The front surface of the base 23 is provided with sliding guide portions corresponding to the sliding guide grooves of the first connection portion 2501 and/or the sliding guide grooves of the second connection portion 2502, and each sliding guide portion can slide along the corresponding sliding guide groove. Preferably, the inner circumferential surface of the mating groove 232 is provided with a guide slider corresponding to the guide chute, and the guide slider is slidingly accommodated in the corresponding guide chute.
As shown in fig. 8 to 13, one side supporting member 271 is rotatably connected with the first rotating member 253 through a circular arc groove, and the other side supporting member 271 is rotatably connected with the second rotating member 255 through a circular arc groove, the axis of which is parallel to the first rotating axis L1. In this embodiment, a first circular arc groove 2535 is disposed at an end of the first rotating member 253 away from the first transmission portion 2531, a second circular arc groove 2555 is disposed at an end of the second rotating member 255 away from the second transmission portion 2551, circular arc rails 2711 are disposed at sides of the two side supporting members 271 away from the base 23, and the two circular arc rails 2711 are rotatably accommodated in the first circular arc groove 2535 and the second circular arc groove 2555. 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 circular arc groove 2535 is disposed at the other end opposite to the first link 2536; preferably, the first connecting rod 2536 is a rectangular plate, the first transmission portion 2531 is connected to an end of the rectangular plate, a bump is disposed at an end of the rectangular plate away from the first transmission portion 2531, and the first circular arc groove 2535 is disposed on a side surface of the first connecting rod 2536, that is, the first circular arc groove 2535 is disposed on a side surface of the bump. 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 circular arc groove 2555 is disposed at the other end opposite to 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 bump is disposed at an end of the rectangular plate away from the second transmission portion 2551, and the second circular arc groove 2555 is disposed on a side surface of the second connecting rod 2556, that is, the second circular arc groove 2555 is disposed on a side surface of the bump. The fully flattened state refers to the front face of the first link 2536 being coplanar with the front face of the second link 2556, i.e., the angle between the front face of the first link 2536 and the front face of the second link 2556 is 180 degrees, the front faces of the two side supports 271 and the front face of the middle support 273 are coplanar; the fully folded state means that the front surfaces of the first and second links 2536 and 2556 are parallel to each other, that is, the angle between the front surfaces of the first and second links 2536 and 2556 is 0 degrees, and the front surfaces of the two side supporting members 271 and 273 enclose a droplet-shaped space; the middle folded state refers to an arbitrary folded state in which the front surfaces of the two side supports 271 and the front surface of the middle support 273 enclose an angle between the front surface of the first link 2536 and the front surface of the second link 2556 greater than 0 degrees and less than 180 degrees, except for a coplanar and drop-shaped space, that is, a folded state of the electronic device 100 in which the angle between the two frames 21 is within a range of greater than 0 degrees and less than 180 degrees.
In other embodiments, a first circular arc rail is disposed at an end of the first rotating member 253 away from the first transmission portion 2531, a second circular arc rail is disposed at an end of the second rotating member 255 away from the second transmission portion 2551, circular arc grooves are disposed at sides of the two side supporting members 271 away from the base 23, and the first circular arc rail and the second circular arc rail are rotatably accommodated in the two circular arc grooves. Specifically, the end of the first connecting rod 2536 away from the first transmission portion 2531 is provided with a first circular arc rail, the end of the second connecting rod 2556 away from the second transmission portion 2551 is provided with a second circular arc rail, and the sides of the two side supporting pieces 271 away from the base 23 are respectively provided with a circular arc groove.
As shown in fig. 4 to 9, each side support 271 is movably coupled with the base 23 by the engagement of the arc-shaped adjustment groove with 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 provided on one side of each side supporting member 271 near the base 23, and adjusting shafts 235 are provided on opposite sides of the base 23; when the two side supports 271 are synchronously folded or unfolded with respect to the base 23, the adjustment shaft 235 slides and rotates in the corresponding adjustment slot 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, opposite to the clearance groove 2351, are respectively provided with a pair of lugs 2353, and each pair of lugs 2353 are positioned at two opposite sides of the clearance groove 2451 at intervals; each adjustment shaft 235 is located between a corresponding pair of lugs 2353, and opposite ends of the adjustment shaft 235 are respectively rotatably connected to ends of the corresponding pair of lugs 2353 away from the front surface of the base 23. The side support 271 includes a side support plate 2710 and an adjustment arm 2714 provided on a side of the side support plate 2710 near the base 23, the adjustment arm 2714 extending from the side support plate 2710 to a side of the base 23, a circular arc rail 2711 provided on a side of a back surface of the side support plate 2710 remote from the adjustment arm 2714, an adjustment slot 2713 provided on the adjustment arm 2714, and an adjustment shaft 235 rotatably and slidably received in the adjustment slot 2713 on the corresponding adjustment arm 2714.
Preferably, the adjustment arm 2714 is an arcuate strip having a middle portion that is closer to the base 23 than opposite ends, i.e., the middle portion of the adjustment arm 2714 is curved to one side of the base 23, and the adjustment slot 2713 extends along the adjustment arm 2714 from near one end of the adjustment arm 2714 to near the opposite end, i.e., the middle portion of the adjustment slot 2713 is curved to one side near the base 23. The adjustment groove 2713 includes a first positioning segment 2713a and a second positioning segment 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 supports 271 are in the fully flattened state, the adjustment shaft 235 is positioned at the first positioning segment 2713a, and the ends of the adjustment arms 2714 remote from the side support plates 2710 are abutted against the back surfaces of the middle support 273 so that the front surfaces of the two side supports 271 are coplanar with the front surfaces of the middle support 273, so that the middle support 273 and the side supports 271 can stably support the flexible screen to prevent the flexible screen from sagging to be damaged. When the two side supporting members 271 are in the fully folded state, the adjusting shaft 235 is positioned at the second positioning section 2713b, and the end portion of the adjusting arm 2714, which is 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 water drop-shaped accommodating space, thereby facilitating accommodating the bendable region of the flexible screen. Further, an end surface of the adjusting arm 2714 remote from the side supporting plate 2710 is provided as an arc surface to facilitate folding or unfolding of the side supporting piece 271. The side support plate 2710 is provided with a avoidance port 2716 on a side near the base 23, the avoidance port 2716 is used for avoiding the corresponding first rotating piece 253 and second rotating piece 255, and when the first rotating piece 253 and the second rotating piece 255 rotate relative to the base 23, the first rotating piece 253 and the second rotating piece 255 are respectively accommodated in the corresponding avoidance port 2716. Preferably, the clearance ports 2716 are disposed adjacent to the corresponding arcuate rails 2711.
The middle support 273 includes a middle support plate 2731, and a guide post 2733 and a stopper post 2735 provided on the back of the middle support plate 2731, both of the guide post 2733 and the stopper post 2735 extending in a direction perpendicular to the first rotation axis L1. The front surface of the base 23 is provided with a slide guiding hole 2361 and a through hole 2363 corresponding to the slide guiding post 2733 and the stop post 2735, and the slide guiding post 2733 and the stop post 2735 are respectively slidably inserted into the slide guiding hole 2361 and the through hole 2363. In this embodiment, one end of the back of the middle support plate 2731 is provided with a stop post 2735 and two slide guiding posts 2733, and the stop post 2735 is located between the two slide guiding posts 2733; the front surface of the base 23 is provided with a through hole 2363 and two slide guiding holes 2361 near the position of the clearance groove 2351, and the through hole 2363 is positioned between the two slide guiding holes 2361; the stop posts 2735 slidably penetrate through the through holes 2363, and the two slide guide posts 2733 slidably penetrate through the two slide guide holes 2361 respectively.
The support mechanism 27 further includes a resilient member 275, the resilient member 275 being coupled to the base 23 and the central support 273, the resilient member 275 being configured to bias the central support 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, among others. The support mechanism 27 further includes a clamping member 276, an end portion of the sliding guide post 2733 away from the middle support plate 2731 is connected to the clamping member 276, the elastic member 275 is clamped by the clamping member 276 and the base 23, and the elastic member 275 elastically biases the middle support plate 2731 toward the base 23. Specifically, the clamping member 276 is a bar-shaped clamping plate, two opposite ends of the clamping member 276 are respectively provided with a clamping hole 2762, and the middle part of the clamping member 276 is opened into a blocking part 2764. The two sliding guide posts 2733 are respectively connected to the two clamping holes 2762 of the clamping piece 276, and the end surface of the stop post 2735, which is far away from the middle support plate 2731, is stopped at the stop part 2764; the back of the base 23 is provided with a clamping groove 2365, the clamping groove 2365 is matched with the clamping piece 276, that is, 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 the shape of the clamping piece 276. The clamping groove 2365 is communicated with the two sliding guide holes 2361 and the through hole 2363, specifically, two opposite ends of the clamping groove 2365 are respectively communicated with the two sliding guide holes 2361, and the middle part of the clamping groove 2365 is communicated with the through hole 2363. In this embodiment, the elastic member 275 is a spring sleeved on the sliding guide post 2733, and 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 for biasing the middle supporting member 273 to move toward the base 23.
As shown in fig. 6-9, the spindle assembly 22 further includes a back cover 28, and the back of the base 23 is accommodated in the back cover 28. Specifically, the back cover 28 is a bar frame, the back cover 28 has a receiving groove 280, and the base 23 is received in the receiving groove 280 and fixedly connected to the back cover 28. In this embodiment, the inner surface of the receiving slot 280 of the back cover 28 is provided with a connecting post 281, the connecting post 281 is provided with a locking hole 283 along the axial direction, and the locking member is locked in the corresponding locking hole 283 through the through hole of the base 23, 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 groove 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 clamped to the back cover 28.
As shown in fig. 8-11, the spindle assembly 22 further includes a positioning mechanism 26, the positioning mechanism 26 including a positioning member 261 coupled to the base 23, and when the linkage member 250 slides relative to the base 23, the cooperation between the limiting portion 2506 and the positioning member 261 positions the linkage member 250 relative to the base 23. The end of the limiting part 2506 away from the connecting part 2505 is slidably abutted against the positioning piece 261, and the friction resistance between the limiting part 2506 and the positioning piece 261 can enable the linkage piece 250 to be positioned relative to the base 23, so that the first rotating piece 253 and the second rotating piece 255 are positioned relative to the base 23, and hovering of the electronic device 100 is achieved. Specifically, when the positioning member 261 is positioned at the first stopper segment 2506a, the first and second rotation members 253 and 255 are in the fully flattened state, so that the two side and middle support members 271 and 273 are maintained in the fully flattened state, so that the electronic apparatus 100 is in the fully flattened state; when the positioning member 261 is positioned at the second limiting section 2506b, the first rotating member 253 and the second rotating member 255 are in a fully folded state, so that the two side supporting members 271 and the middle supporting member 273 are kept in a fully folded state in a water-drop shape, so that the electronic device 100 is in a fully folded state; when the positioning member 261 is positioned at the intermediate limiting section 2506c, the first and second rotation members 253 and 255 assume an intermediate folded state, so that the two side support members 271 can be maintained in any folded state other than the fully flattened state and the fully folded state, so that the electronic device 100 assumes any hovering state.
In the present embodiment, the positioning member 261 includes a fixed portion 2612 and a positioning portion 2614 having elasticity, and the fixed portion 2612 is connected to the positioning portion 2614. When the link 250 slides with respect to the base 23, the stopper 2506 can abut against the positioning portion 2614, and the positioning portion 2614 is elastically deformed to engage the stopper 2506 with 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, such that the spindle 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 bump 2614b provided on the elastic strip 2614a, and the bump 2614b can be selectively positioned in the first limiting segment 2506a, the second limiting segment 2506b or the intermediate limiting segment 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, a receiving 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 into the receiving groove 2616 and abuts against the protruding block 2614b; the elastic strip 2614a is 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 250, two elastic strips 2614a enclose a containing groove 2616, and the protruding block 2614b is arranged on the side surface of the elastic strip 2614a facing the containing groove 2616. The opposite sides of the end of the limiting portion 2506 far away from the connecting portion 2505 are respectively provided with a first limiting segment 2506a, a second limiting segment 2506b and an intermediate limiting segment 2506c, the first limiting segment 2506a on the same side of the limiting portion 2506 is farther away from the connecting portion 2505 than the second limiting segment 2506b, and the intermediate limiting segment 2506c is located between the first limiting segment 2506a and the second limiting segment 2506 b. When the two protruding blocks 2614b of the positioning member 261 are respectively positioned on the two first limiting sections 2506a of the limiting portion 2506, the first rotating member 253 and the second rotating member 255 are in a completely flattened state; when the two protruding blocks 2614b of the positioning member 261 are respectively positioned on the second limiting section 2506b of the limiting portion 2506, the first rotating member 253 and the second rotating member 255 are in a fully folded state; when the two protrusions 2614b of the positioning member 261 are respectively positioned at the two middle limiting sections 2506c of the limiting portion 2506, the first rotating member 253 and the second rotating member 255 are in a middle folded state.
Further, the fixing portion 2612 and the base 23 may be fixedly connected by, but not limited to, screwing, clamping, gluing, or the like. In the present 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 to be 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 the elastic sheet is connected to the base 23, and the limiting portion 2506 slides against the elastic sheet along with the movement of the linkage member 250, so that the elastic sheet can be selectively positioned on the first limiting segment 2506a, the middle limiting segment 2506c or the second limiting segment 2506b of the limiting portion 2506, so that the first rotating member 253 and the second rotating member 255 can be in a completely flattened state, a middle 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 an inner circumferential surface of the first transmission portion 2531 is slidably attached to the first outer circumferential surface 2503a of the first connection portion 2501, two first pushing surfaces 2532 of the first transmission portion 2531 are slidably attached to the two first inner side surfaces 2503b of the first connection portion 2501, an inner circumferential surface of the second transmission portion 2551 is slidably attached to the second outer circumferential surface 2504a of the second connection portion 2502, and two second pushing surfaces 2552 of the second transmission portion 2551 are slidably attached to the two second inner side surfaces 2504b of the second connection portion 2502. The linkage member 250, the first rotating member 253 and the second rotating member 255 are disposed on the front surface of the base 23, so that the sliding guide portions 2507 of the linkage member 250 are respectively inserted into the corresponding insertion openings 234a and slide into the corresponding sliding guide segments 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 accommodated 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 to the base 23, specifically, the fixing portion 2612 is placed on the mounting portion 237 such that the stopper portion 2506 is accommodated in the accommodation groove 2616 between the two positioning portions 2614 of the positioning member 261, and the through hole 2613 of the positioning member 261 faces the mounting hole 2372, and the locking member 263 is locked in the mounting hole 2372 through the through hole 2613. Two side support pieces 271 are respectively arranged on two opposite sides of the front surface of the base 23, wherein the adjusting arm 2714 of one side support piece 271 is movably sleeved on the corresponding adjusting shaft 235, namely the adjusting shaft 235 slides and rotationally penetrates through the adjusting groove 2713 of the adjusting arm 2714, the circular arc rail 2711 of the side support piece 271 is rotatably inserted into the first circular arc groove 2535 of the first rotating piece 253, and the first connecting rod 2536 is opposite to the avoidance port 2716 of one side support piece 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 slides and rotationally passes through the adjusting groove 2713 of the adjusting arm 2714, the circular arc rail 2711 of the side supporting member 271 is rotatably inserted into the second circular arc groove 2555 of the second rotating member 255, and the second connecting rod 2556 is opposite to the position avoiding opening 2716 of the other side supporting member 271. The middle supporting member 273 is placed on the front surface of the base 23 and between the two side supporting members 271, so that the stop post 2735 and the slide guiding post 2733 of the middle supporting member 273 respectively penetrate through the through hole 2363 and the slide guiding hole 2361 of the base 23, and the stop post 2735 and the slide guiding post 2733 respectively extend into the clamping groove 2365; the two elastic members 275 are respectively sleeved on the two sliding guide posts 2733 from the clamping grooves 2365, the clamping members 276 are accommodated in the clamping grooves 2365, the end parts of the two sliding guide posts 2733 far away from the middle supporting plate 2731 are respectively clamped in the two clamping holes 2762 of the clamping members 276, the elastic members 275 are clamped by the clamping members 276 and the base 23, and the elastic members 275 have elastic force for biasing the middle supporting member 273 to move towards the base 23. The base 23 is accommodated in the accommodating groove 280 of the back cover 28, and the base 23 is fixedly connected with the back cover 28.
When the two side supporting members 271 are in the completely flattened state, the two adjusting shafts 235 are respectively positioned at the first positioning sections 2713a of the two side supporting members 271, the ends of the two adjusting arms 2714 respectively abut against the back surfaces of the middle supporting plates 2731, the elastic members 275 are pressed to elastically deform, the end of the first transmission portion 2531 away from the first connecting rod 2536 passes through the position avoiding through groove 2505a of the linkage member 250 and abuts against the back surfaces of the middle supporting plates 2731, the end of the second transmission portion 2551 away from the second connecting rod 2556 passes through the position avoiding through groove 2505a of the linkage member 250 and abuts against the back surfaces of the middle supporting plates 2731, the distance between the back surfaces of the middle supporting plates 2731 and the front surfaces of the bases 23 is the largest, and the front surfaces of the middle supporting members 273 are coplanar with the front surfaces of the two side supporting members 271. The protruding blocks 2614b of the two positioning portions 2614 are respectively positioned on the two first limiting sections 2506a of the limiting portion 2506 to limit the sliding of the linkage member 250 relative to the base 23, so that the rotating shaft assembly 22 maintains a stable and completely flattened state. When the two side supporting members 271 are in a fully folded state, the two adjusting shafts 235 are respectively positioned on the second positioning sections 2713b of the two side supporting members 271, the ends of the two adjusting arms 2714 are respectively far away from the back surfaces of the middle supporting plates 2731, the elastic members 275 elastically reset to drive the middle supporting members 273 to move towards the base 23, the ends of the first transmission parts 2531 far away from the first connecting rods 2536 and the ends of the second transmission parts 2551 far away from the second connecting rods 2556 are respectively accommodated in the two matching grooves 232 of the base 23, the distance between the back surfaces of the middle supporting plates 2731 and the front surfaces of the base 23 is minimum, and the front surfaces of the middle supporting members 273 and the front surfaces of the two side supporting members 271 enclose a water drop-shaped space; the protruding blocks 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 movement of the linkage member 250 relative to the base 23, so that the rotating shaft assembly 22 maintains a stable fully folded state.
As shown in fig. 14 to 21, 23 to 32 and 34 to 43, when the rotating shaft assembly 22 is folded from the flattened state, the first rotating member 253 is rotated about the first connecting portion 2501 toward the second rotating member 255 relative to the base 23, and the first limiting portion 2533 of the first rotating member 253 slides in the first limiting groove 230, so that the first transmitting portion 2531 rotates about the first rotational axis L1 and cannot move along the first rotational axis L1, and when the first transmitting portion 2531 rotates in the first spiral groove 2503, the two first pushing surfaces 2532 slidably push the two first inner side surfaces 2503b of the first connecting portion 2501, respectively, so that the linking member 250 slides along the center line O toward the positioning member 261. The sliding guide portion 2507 of the linkage member 250 slides in the corresponding sliding guide groove 234, and the limiting portion 2506 slidably pushes against the two protruding blocks 2614b so that the positioning portion 2614 is elastically deformed, and the protruding blocks 2614b slide relative to the corresponding middle limiting segment 2506c after being separated from the corresponding first limiting segment 2506a until the two protruding blocks 2614b are respectively positioned on the two second limiting segments 2506b. Meanwhile, the sliding movement of the linkage member 250 drives 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 connecting rod 2536 of the first rotation member 253 rotates relative to the first connection portion 2501 along with the first transmission portion 2531 and the second connecting rod 2556 of the second rotation member 255 approaches each other along with the second transmission portion 2551 rotating relative to the second connection portion 2502. Meanwhile, in the process that the first rotating member 253 rotates relative to the first connection portion 2501 and the second rotating member 255 rotates relative to the second connection portion 2502, the first rotating member 253 and the corresponding side supporting member 271 rotate relative to each other through the cooperation of 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 relative to each other through the cooperation of 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 groove 2713, so that the side supporting members 271 on opposite sides of the base 23 are close to each other until the adjusting shaft 235 is limited to the second positioning segment 2713b, the two protruding blocks 2614b are respectively positioned on the two second limiting segments 2506b, the adjusting arms 2714 gradually release the supporting of the middle supporting plate 2731, and the elastic member 275 biases the middle supporting member 273 to move toward 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 water drop shape in cross section.
In another bending manner, the second rotating member 255 may be rotated about the second connection portion 2502 toward the first rotating member 253 with respect to the base 23, and the second limiting portion 2553 of the second rotating member 255 slides in the second limiting 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 pushing surfaces 2552 slidably push the two second inner side surfaces 2504b of the second connection portion 2502, respectively, so that the linkage member 250 slides along the center line O. The sliding guide portion 2507 of the linkage member 250 slides in the corresponding sliding guide groove 234, and the limiting portion 2506 slidably pushes against the two protruding blocks 2614b so that the positioning portion 2614 is elastically deformed, and the protruding blocks 2614b slide relative to the corresponding middle limiting segment 2506c after being separated from the corresponding first limiting segment 2506a until the two protruding blocks 2614b are respectively positioned on the two second limiting segments 2506b. Meanwhile, the sliding movement of the linkage member 250 drives 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 therefore the second connecting rod 2556 of the second rotation member 255 rotates relative to the second connection portion 2502 along with the second transmission portion 2551 and the first connecting rod 2536 of the first rotation member 253 approaches each other along with the rotation of the first transmission portion 2531 relative to the first connection portion 2501. Meanwhile, in the process that the first rotating member 253 rotates relative to the first connection portion 2501 and the second rotating member 255 is correspondingly positioned at the second connection portion 2502, the first rotating member 253 and the corresponding side supporting member 271 rotate relative to each other through the cooperation of 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 relative to each other through the cooperation of 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 groove 2713, so that the side supporting members 271 on opposite sides of the base 23 are close to each other until the adjusting shaft 235 is limited to the second positioning segment 2713b, the two protruding blocks 2614b are respectively positioned on the two second limiting segments 2506b, the adjusting arms 2714 gradually release the supporting of the middle supporting plate 2731, and the elastic member 275 biases the middle supporting member 273 to move toward 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 water drop shape in cross section.
In other bending modes, the first rotating member 253 and the second rotating member 255 can be simultaneously rotated together in opposite directions relative to the base 23 around the first connecting portion 2501 and the second connecting portion 2502, the two side supporting members 271 rotate relative to the first rotating member 253 and the second rotating member 255, and the two side supporting members 271 move relative to the base 23, that is, the two adjusting shafts 235 rotate and slide in the two adjusting grooves 2713, so that the two side supporting members 271 are close to each other until each adjusting shaft 235 is limited on the corresponding second positioning segment 2713b; meanwhile, the first pushing surface 2532 of the first transmission portion 2531 and the second pushing surface 2552 of the second transmission portion 2551 synchronously push the first inner side surface 2503b and the second inner side surface 2504b respectively, so that the linkage 250 slides relative to the base 23 along the direction of the center line O until the two protruding blocks 2614b are positioned at the two second limiting segments 2506b respectively; the regulating arm 2714 gradually releases the abutment of the center support plate 2731, and the elastic member 275 biases the center support 273 to move toward the base 23 until the front faces of the two side support members 271 and the front face of the center support 273 enclose a cross section in the shape of a drop.
In the bending process of 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, meanwhile, 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 section 2713a to the second positioning section 2713b, the two adjusting arms 2714 gradually release the abutting of the middle supporting plate 2731, and the elastic piece 275 elastically resets to drive the middle supporting plate 2730 to gradually move towards the base 23; simultaneously, 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 pushing surface 2532 and the second pushing surface 2552 slidably push the first inner side surface 2503b and the second inner side surface 2504b respectively, so that the linkage piece 250 gradually moves towards the positioning piece 261 along the direction of the central line O, the limiting portion 2506 slidably pushes the protruding block 2614b to elastically deform the elastic strip 2614a, and the protruding block 2614b slides relative to the middle limiting section 2506c after being separated from the first limiting section 2506a until the protruding block 2614b is positioned at the second limiting section 2506b. The first rotating member 253 rotates around the first connecting portion 2501 to drive the linkage member 250 to slide relative to the base 23, and the linkage member 250 synchronously drives the second rotating member 255 to rotate around the second connecting portion 2502, so that synchronous folding of the first rotating member 253 and the second rotating member 255 is realized; or the second rotating member 255 rotates around the second connecting portion 2502 to drive the linkage member 250 to slide relative to the base 23, and the linkage member 250 synchronously drives the first rotating member 253 to rotate around the first connecting portion 2501, so that synchronous folding of the first rotating member 253 and the second rotating member 255 is realized. 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 whole volume of the rotating shaft assembly 22 is reduced, and the miniaturization development of products is facilitated; next, as the boss 2614b slides relative to the intermediate limit segment 2506c, the frictional resistance between the positioning member 261 and the limit portion 2506 positions the linkage member 250 relative to the base 23 such that the first rotational member 253 is positioned at any angle between 0 and 90 degrees relative to the base 23 and the second rotational member 255 is positioned at any angle between 0 and 90 degrees relative to the base 23; at the same time, positioning the side support 271 at any angle between 0 degrees and 120 degrees with respect to the base 23, i.e., the included angle between the front face of the side support 271 and the front face of the base 23 ranges between 0 degrees and 120 degrees, enables the electronic device 100 to achieve a larger-angle hover.
When the rotating shaft assembly 22 is unfolded from the completely folded state, the movement process of each component is opposite to that when the rotating shaft assembly 22 is folded 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 with the two frames 21 respectively. Specifically, the side supporting members 271 on opposite sides of the back cover 28 are respectively accommodated in the mounting grooves 216 of the two frames 21, and one end of the first rotating member 253 remote from the base 23 is connected to one of the frames 21, and one end of the second rotating member 255 remote from the base 23 is connected to the other frame 21. At this time, the front faces 211 of the two frames 21, the front faces of the two side supports 271, and the front face 2311 of the middle support 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 regions 31 are attached to the front surfaces of the two side supporting members 271 and the front surface of the middle supporting member 273 of the rotating shaft 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 realize synchronous flattening or synchronous folding only through the cooperation of the base 23, the linkage member 250, the first rotating member 253 and the second rotating member 255, the rotating shaft assembly 22 has fewer elements, simple structure and low manufacturing cost, occupies smaller 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. Secondly, the overall size of the rotating shaft assembly 22 is smaller, so that the space occupied by the rotating shaft assembly 22 in the housing 20 is reduced, which is beneficial to the layout of other components such as a motherboard or a battery, and is beneficial to the miniaturization and the thinning of the electronic device 100.
Referring to fig. 22-43, when bending the electronic device 100, a bending force is applied to at least one of the two frames 21 of the electronic device 100, so that the first rotating member 253 and the second rotating member 255 connected to the two frames 21 rotate relative to the base 23 and towards each other, wherein one side supporting member 271 far away from the base 23 rotates relative to the first rotating member 253, one side supporting member 271 and the base 23 are connected in a rotating and sliding manner by the cooperation of the adjusting shaft 235 and the adjusting slot 2713, one side supporting member 271 far away from the base 23 rotates relative to the second rotating member 255, and the other side supporting member 271 and the base 23 are connected in a rotating and sliding manner by the cooperation of the adjusting shaft 235 and the adjusting slot 2713, so as to realize synchronous folding of the rotating shaft assembly 22, and the bendable region 31 of the flexible screen 30 is bent along with the rotating shaft assembly 22. Specifically, if a bending force is applied to the frame 21 connected to the first rotating member 253, the frame 21 drives the first rotating member 253 to rotate around the first connecting portion 2501 to the side close to the flexible screen 30 with respect to the base 23, the first transmitting portion 2531 rotates in the first spiral groove 2503 to push the linking member 250 to slide along the center line O towards the positioning member 261, and at the same time, the sliding of the linking member 250 drives the second transmitting portion 2551 in the second spiral groove 2504 to synchronously rotate around the second connecting portion 2502 with respect to the base 23, so that the second rotating member 255 rotates to the side close to the flexible screen 30, thereby realizing that the first rotating member 253 and the second rotating member 255 synchronously rotate with respect to the base 23 to be close to each other. Meanwhile, the first rotating member 253 and the side supporting member 271 are rotated by 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 adjusting groove 2713 of the corresponding adjusting arm 2714, that is, the adjusting shaft 235 slides and rotationally moves from the first positioning segment 2713a of the adjusting groove 2713 to the second positioning segment 2713b; the second rotating member 255 and the side supporting member 271 rotate through the cooperation 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 section 2713a of the adjusting groove 2713 and rotationally moves to the second positioning section 2713b, so that the side supporting members 271 on two opposite sides of the base 23 are close to each other until the adjusting shaft 235 is limited to the second positioning section 2713b, the positioning member 261 is positioned on the second limiting section 2506b, the middle supporting member 273 moves to the side far away from the flexible screen 30, and the front faces of the two side supporting members 271 and the front face of the middle supporting member 273 enclose a cross section to form a drop shape; the bendable region 31 of the flexible screen 30 is bent along with the rotating shaft assembly 22 until the bendable region 31 is bent into a water droplet shape, thereby realizing the folding of the electronic device 100.
In the process of bending the electronic device 100, the middle supporting part 273 is close to the base 23, so that a water drop-shaped space surrounded by the front surface of the middle supporting part 273 and the front surfaces of the two side supporting parts 271 is larger, the bendable region 31 of the flexible screen 30 is convenient to bend and enclose 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 apparatus 100 is flattened, a deployment force is applied to at least one of the two frames 21 of the electronic apparatus 100, the first rotating member 253 and the second rotating member 255 connected to the two frames 21 are rotated in a direction away from each other with respect to the base 23, one side of the side support member 271 away from the base 23 is rotated with respect to the first rotating member 253, the side of the side support member 271 and the base 23 are rotatably and slidably connected with each other by the engagement of the adjustment shaft 235 with the adjustment groove 2713, the side of the other side support member 271 away from the base 23 is rotated with respect to the second rotating member 255, and the side of the other side support member 271 and the base 23 are rotatably and slidably connected with each other by the engagement of the adjustment shaft 235 with the adjustment groove 2713 to achieve the deployment of the rotating shaft assembly 22, and the bendable region 31 of the flexible screen 30 is flattened with the rotating shaft assembly 22. Specifically, if a deployment force is applied to the frame 21 connected to the first rotating member 253, the frame 21 drives the first rotating member 253 to rotate around the first connecting portion 2501 to a side away from the flexible screen 30 relative to the base 23, the first transmitting portion 2531 rotates in the first spiral groove 2503 to push the linkage member 250 to slide along the center line O away from the positioning member 261, and simultaneously, the sliding of the linkage member 250 drives the second transmitting 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, thereby realizing that the first rotating member 253 and the second rotating member 255 synchronously rotate to move away from each other relative to the base 23; meanwhile, the first rotating member 253 and the side supporting member 271 are rotated by 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 adjusting groove 2713 of the corresponding 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 2713a; the second rotating member 255 and the side supporting member 271 are rotated by the cooperation 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 second positioning section 2713b of the adjusting groove 2713 and rotationally moves to the first positioning section 2713a, so that the side supporting members 271 on two opposite sides of the base 23 are far away from each other until the adjusting shaft 235 is limited to the first positioning section 2713a, the positioning member 261 is positioned to the first limiting section 2506a, the middle supporting member 273 moves to the side close to the flexible screen 30, so that the side supporting members 271 on two opposite sides of the base 23 are mutually unfolded until the two side supporting members 271 and the base 23 are flattened, 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 flattened, and thus flattening of the electronic device 100 is achieved.
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, stable support of the side supporting plate on the flexible screen 30 can be realized, and the flexible screen 30 is prevented from sinking to be damaged.
The rotating shaft assembly 22 of the electronic equipment 100 realizes synchronous bending or synchronous unfolding through the rotating assembly 25, and is convenient to operate; because the rotating assembly 25 only includes the linkage member 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 linkage member 250, the rotating assembly 22 has fewer components, simple structure and low manufacturing cost, and the rotating assembly 22 occupies the internal space of the housing 20, which is beneficial to the layout of other components such as a motherboard or a battery. Secondly, when the electronic device 100 is in the fully folded state, the adjusting shaft 235 is limited to the second positioning segment 2713b and the positioning piece 261 is positioned to the second positioning segment 2713b of the limiting portion 2506, so that each element is not easy to shift when the electronic device 100 falls down, and the flexible screen 30 is prevented from being damaged; when the electronic device 100 is in the completely flattened state, the adjusting shaft 235 is limited to the first positioning segment 2713a and the positioning piece 261 is positioned on 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 down, and damage to the flexible screen 30 is avoided. The rotation shaft assembly 22 realizes that the linkage member 250 is limited relative to the base 23 through the cooperation of the limiting part 2506 and the positioning member 261, specifically, the friction resistance between the protruding block 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 frames 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 a hovering function of 0-180 degrees is provided between the two frames 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, a first spiral groove 2503 is formed on the first transmission portion 2531 of the first rotating member 253a, a first transmission block 2508 is formed on the outer circumferential wall of the first connection portion 2501, the first transmission portion 2531 is rotatably sleeved on the first connection portion 2501, and the first transmission block 2508 is slidably accommodated in the first spiral groove 2503; the second transmission portion 2551 of the second rotating member 255a is provided with a second spiral groove 2504, the outer peripheral wall of the second connection portion 2502 is provided with a second transmission block 2509, the second transmission portion 2551 is rotationally sleeved on the second connection portion 2502, and the second transmission block 2509 is slidably accommodated in the second spiral groove 2504; the first spiral groove 2503 is of opposite sense to the second spiral groove 2504.
When the first transmission portion 2531 rotates relative to the first connection portion 2501 or the second transmission portion 2551 rotates relative to the second connection portion 2502, the first transmission portion 2531 rotates only around the first connection portion 2501 and is limited in the axial direction of the first connection portion 2501, i.e., the first transmission portion 2531 cannot be displaced in the axial direction of the first connection portion 2501, and the second transmission portion 2551 rotates only around the second connection portion 2502 and is limited in the axial direction of the second connection portion 2502, i.e., the second transmission portion 2551 cannot be displaced in the axial direction of the second connection portion 2502; when the first transmission portion 2531 rotates around the first connection portion 2501, the first transmission block 2508 slides along the first spiral groove 2503 to push the linkage piece 250a to move along the axial direction parallel to the first connection portion 2501, and the movement of the linkage piece 250a drives the second transmission block 2509 to slide along the second spiral groove 2504, so that the second transmission portion 2551 rotates around the second connection portion 2502, and synchronous rotation of the first transmission portion 2531 and the second transmission portion 2551 is achieved.
The linkage 250a and the base 23a are slidably connected by the sliding guide portion 2507 and the sliding guide groove 234, and the length of the first spiral groove 2503 and the second spiral groove 2504 extending spirally in the sliding direction parallel to the linkage 250a is proportional to the sliding length of the linkage 250a relative to the base 23 a. That is, the longer the first and second spiral grooves 2503 and 2504 extend helically in a direction parallel to the center line O, the longer the linkage 250a slides relative to the base 23 a; the shorter the first and second spiral grooves 2503 and 2504 spirally extend in the direction parallel to the center line O, the shorter the length of the link 250a sliding with respect to 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-circular arc, or the like, and 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; the first rotation axis L1 between the first transmission portion 2531 and the first connection portion 2501 is collinear with the axis of the first connection portion 2501, and the second rotation axis L2 between the second transmission portion 2551 and the second connection portion 2502 is collinear with the axis of the first connection portion 2501. The first and second transmission portions 2531 and 2551 on opposite sides of the linkage 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 and second transmission portions 2531 and 2551 on opposite sides of the linkage 250a may be offset from each other along the center line O, the first and second spiral grooves 2503 and 2504 may be offset from each other along the center line O, and the first and second transmission blocks 2508 and 2509 may be offset 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 forward projection area of the first transmission portion 2531 on the YZ plane coincides with the forward projection area of the second transmission portion 2551 on the YZ plane, the forward projection area of the first spiral groove 2503 on the YZ plane coincides with the forward projection area of the second spiral groove 2504 on the YZ plane, the forward projection area of the first transmission block 2508 on the YZ plane coincides with the forward 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 is not limited to, a rectangular block, a stop block, a sphere, etc., and two opposite surfaces of the first transmission block 2508 slidably abut two opposite inner sides of the first spiral groove 2503, respectively; the second transmission block 2509 may be, but is not limited to, a rectangular block, a stop block, a sphere, etc., and opposite surfaces of the second transmission block 2509 slidably abut opposite inner sides of the second helical groove 2504, respectively. In this embodiment, the first transmission block 2508 and the second transmission block 2509 are rectangular blocks, two opposite sides of the first transmission block 2508 respectively slide against two opposite inner sides of the first spiral groove 2503, and the two sides are arranged at intervals in the direction of the first rotation axis L1; two opposite side surfaces of the second transmission block 2509 slidably abut against two opposite inner side surfaces of the second spiral groove 2504, respectively, which are disposed at an interval in the second rotation axis L2 direction.
In other embodiments, the first and second transmission portions 2531 and 2551 are offset from each other in the direction along the center line O, the first and second spiral grooves 2503 and 2504 are offset from each other in the direction along the center line O, and the first and second transmission blocks 2508 and 2509 are offset from each other in the direction along the center line O; the first gear 2508 and the second gear 2509 are slidably received in the first spiral groove 2503 and the second spiral groove 2504, respectively. Specifically, the forward projection area of the first transmission portion 2531 on the YZ plane is located at one end of the forward projection area of the second transmission portion 2551 on the YZ plane, the forward projection area of the first spiral groove 2503 on the YZ plane is located at one end of the forward projection area of the second spiral groove 2504 on the YZ plane, the forward projection area of the first transmission block 2508 on the YZ plane is located at one end of the forward 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 accommodated in the first spiral groove 2503 and the second spiral groove 2504; alternatively, the forward projection area of the first transmission portion 2531 on the YZ plane intersects the forward projection area of the second transmission portion 2551 on the YZ plane, the forward projection area of the first spiral groove 2503 on the YZ plane intersects the forward projection area of the second spiral groove 2504 on the YZ plane, the forward projection area of the first transmission block 2508 on the YZ plane intersects the forward 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.
In other embodiments, the first and second transmission portions 2531 and 2551 on opposite sides of the linkage 250a are symmetrically disposed about the center line O, the first and second spiral grooves 2503 and 2504 are offset from each other in the direction along the center line O, and the first and second transmission blocks 2508 and 2509 are offset from each other in the direction along 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 forward projection area of the first spiral groove 2503 on the YZ plane is located at one end of the forward projection area of the second spiral groove 2504 on the YZ plane, or the forward projection area of the first spiral groove 2503 on the YZ plane intersects the forward projection area of the second spiral groove 2504 on the YZ plane; the forward projection area of the first transmission block 2508 on the YZ plane is located at one end of the forward projection area of the second transmission block 2509 on the YZ plane, or the forward projection area of the first transmission block 2508 on the YZ plane intersects the forward 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 accommodated in the first spiral groove 2503 and the second spiral groove 2504 in a sliding manner.
The first rotating member 253a and the second rotating member 255a on opposite sides of the linkage member 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 about the center line O. The length of the first transmission portion 2531 extending along the first rotation axis L1 may be the same as or different from the length of the second transmission portion 2551 extending along the second rotation axis L2; in this embodiment, the length of the first transmission portion 2531 extending along the first rotation axis L1 is equal to the length of the second transmission portion 2551 extending along the second rotation axis L2.
In this embodiment, the first transmission portion 2531 is a first circular arc plate, the inner circumferential surface of which is rotatably attached to the outer circumferential surface of the first connection portion 2501, the axis line of the first circular arc plate is collinear with the first rotation axis line L1, the first spiral groove 2503 is provided on the first rotation member 253a, specifically, the first spiral groove 2503 is provided on the inner circumferential surface of the first transmission portion 2531, the first transmission block 2508 is provided on the outer circumferential wall of the first connection portion 2501, and when the first transmission portion 2531 is rotatably sleeved on the first connection portion 2501, the first transmission block 2508 is slidingly accommodated in the first spiral groove 2503. The second transmission portion 2551 is a second circular arc plate, an inner circumferential surface of which is rotatably attached to an outer circumferential wall of the second connection portion 2502, an axial line of which is collinear with the second rotation axial line L2, the second spiral groove 2504 is provided on the second rotation member 255a, specifically, the second spiral groove 2504 is provided on the inner circumferential surface of the second transmission portion 2551, the second transmission block 2509 is provided 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 slidingly accommodated in the second spiral groove 2504.
The base 23 has a mating groove 232 and stop portions 238 disposed at opposite ends of the mating groove 232, and the first transmission portion 2531 and/or the second transmission portion 2551 are rotatably accommodated in the mating groove 232, and opposite ends of the first transmission portion 2531 and/or the second transmission portion 2551 respectively abut against the stop portions 238. Specifically, the front surface of the base 23a is provided with two mating grooves 232 corresponding to the first connection portion 2501 and the second connection portion 2502, the opposite ends of the base 23a corresponding to each mating groove 232 are respectively provided with a stop portion 238, and the first transmission portion 2531 and the second transmission portion 2551 are respectively rotatably accommodated in the two mating grooves 232; opposite ends of the first transmission portion 2531 respectively abut against the stop portions 238 to limit the movement of the first transmission portion 2531 in the axial line direction of the first connection portion 2501 when the first transmission portion 2501 rotates around the first connection portion 2501; opposite ends of the second transmission portion 2551 respectively abut against the stop portions 238 to limit movement of the second transmission portion 2551 in the axial direction of the second connection portion 2502 when the second transmission portion 25051 rotates around the second connection portion 2502. Specifically, the mating grooves 232 are circular arc grooves, wherein the axis of one mating groove 232 is collinear with the first rotation axis L1, the axis of the other mating groove 232 is collinear with the second rotation axis L2, and the stop portion 238 may be, but is not limited to, a circular arc bar, a rectangular block, etc. disposed at the end of the mating groove 232.
In other embodiments, the mating groove 232 may be recessed in the front face of the nest, i.e., the front face of the mating groove 232 is not coplanar with the front face of the nest, such that a stepped surface is formed between the front face of the nest and the front face of the mating groove 232; the first transmission portion 2531 and the second transmission portion 2551 are respectively rotatably accommodated in the two matching grooves 232, and end surfaces of opposite ends of the first transmission portion 2531 respectively slidably abut against two opposite step surfaces of the corresponding matching groove 232, so as to limit the first transmission portion 2531 to move in the axial line direction of the first connection portion 2501 when rotating around the first connection portion 2501; the end surfaces of the opposite ends of the second transmission portion 2551 slidably abut against the opposite two step surfaces of the corresponding mating groove 232, respectively, so as to limit the movement of the second transmission portion 2551 in the axial line direction of the second connection portion 2502 when the second transmission portion 25051 rotates around the second connection portion 2502.
In other embodiments, the first transmission portion 2531 of the first rotating member 253a is rotationally connected with the base 23a through a circular arc-shaped first limiting groove, the axial line of the first limiting groove is collinear with the first rotation axis L1, the first limiting groove is arranged on one of the first transmission portion 2531 and the base 23a, and the first limiting portion is arranged 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 limiting portion slides in the limiting groove to limit the movement of the first transmission portion 2531 in the axial line direction of the first connection portion 2501. The second transmission part 2551 of the second rotating member 255a is rotationally connected with the base 23a through the cooperation of a circular arc-shaped second limiting groove and a second limiting part, the axial lead of the second limiting groove is collinear with the second rotation axial lead 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 movement of the second transmission portion 2551 in the axial line direction of the second connection portion 2502.
The assembly method of the spindle assembly 22a in the second embodiment of the present application is the same as the assembly method of the spindle 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 rotationally sleeved on the first connection portion 2501, and the first transmission block 2508 is slidingly accommodated in the first spiral groove 2503; the outer peripheral wall of the second connecting part 2502 is provided with a second spiral groove 2504, the second transmission part 2551 is rotationally sleeved on the second connecting part 2502, and the second transmission block 2509 is slidingly accommodated in the second spiral groove 2504; the first spiral groove 2503 is of opposite sense to the second spiral groove 2504. The first transmission portion 2531 and the second transmission portion 2551 can rotate relative to the first connection portion 2501 and the second connection portion 2502, respectively, when the first transmission portion 2531 rotates relative to the first connection portion 2501 or the second transmission portion 2551 rotates relative to the second connection portion 2502, the first transmission portion 2531 only rotates around 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 displace in the axial direction of the first connection portion 2501, and the second transmission portion 2551 only rotates around 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 displace in the axial direction of the second connection portion 2502; when the first transmission portion 2531 rotates around the first connection portion 2501, the first transmission block 2508 slides along the first spiral groove 2503 to push the linkage piece 250a to move along the axial direction parallel to the first connection portion 2501, and the movement of the linkage piece 250a drives the second transmission block 2509 to slide along the second spiral groove 2504, so that the second transmission portion 2551 rotates around the second connection portion 2502, and synchronous rotation of the first transmission portion 2531 and the second transmission portion 2551 is achieved.
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 stopper 2506 are slidably connected by the engagement of a rack having teeth arranged in the first direction, that is, teeth arranged in a direction parallel to the first rotation axis L1, and a latch provided to one of the positioning member 261a and the stopper 2506 and the other of the positioning member 261a and the stopper 2506; when the latch is positioned at one end of the rack adjacent to the first rotating member 253, the first rotating member 253 and the second rotating member 255 are in a completely flattened state; when the latch is positioned at an end of the rack away from the first rotating member 253, the first and second rotating members 253 and 255 are in a fully folded state; when the latch is engaged with the teeth of the rack, the first and second rotating members 253 and 255 are in an intermediate folded state. 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 center line O along with the linkage member 250c, so that the latch 2506d can be selectively positioned at one end of the rack 2617 near the first rotating member 253, one end of the rack 2617 opposite to the first rotating member 253, and the first rotating member 253 and the second rotating member 255 are in a fully flattened state, an intermediate folded state, and a fully folded state.
In other embodiments, racks may be provided on the stopper 2506, the teeth of the racks being aligned along the extending direction of the stopper 2506; the positioning member 261a is provided with a latch, and the latch is disposed on the protruding block 2614b. When the limiting portion 2506 slides along the center line O along with the linkage, the latch is selectively positioned at one end of the rack adjacent to the first rotating member 253, the tooth of the rack, and one end facing away from the first rotating member 253, so that the first rotating member 253 and the second rotating member 255 are in the completely flattened state, the middle folded state, and the completely folded state.
As shown in fig. 53 to 56, the opposite two projections 2614b of the positioning member 261 are provided with racks 2617 on the sides facing the receiving groove 2616, and teeth of the racks 2617 are arranged from the end face near the first rotating member 253 to the end face away from the first rotating member 253 in a direction parallel to the center line O; opposite sides of the end of the limiting portion 2506 away from the first rotating member 253 are respectively provided with a latch 2506d. When the two latches 2506d of the limiting portion 2506 are respectively positioned at the ends of the two racks 2617 close to the first rotating member 253, the first rotating member 253 and the second rotating member 255 are in a completely flattened state, that is, an included angle between the first rotating member 253 and the second rotating member 255 is 180 degrees; when the two latches 2506d are positioned at the ends of the two racks 2617 facing away from the first rotating member 253, respectively, the first and second rotating members 253 and 255 are in a fully folded state, i.e., the first and second rotating members 253 and 255 are parallel (at an angle of 0 °); when the two latches 2506d are positioned on the teeth of the two racks 2617, respectively, the first rotating member 253 and the second rotating member 255 are in an intermediate folded state, i.e., the included angle between the first rotating member 253 and the second rotating member 255 is greater than 0 degrees and less than 180 degrees.
The length of the first and second spiral grooves 2503 and 2504 extending spirally in the sliding direction parallel to the linkage 250c is proportional to the length of the teeth of the rack 2617 aligned in the direction parallel to the center line O. That is, the longer the first spiral groove 2503 and the second spiral groove 2504 spirally extend in a direction parallel to the center line O, the longer the rack 2617 is for arranging teeth in a direction parallel to the center line O; the shorter the first spiral groove 2503 and the second spiral groove 2504 spirally extend in a direction parallel to the center line O, the shorter the length of the teeth of the rack 2617 aligned in the direction parallel to the center line O.
The assembly of the spindle assembly 22c in the fourth embodiment of the present application is the same as the assembly of the spindle assembly 22 in the first embodiment and will not be described here. The folding positioning of the rotating shaft assembly 22c in the embodiment is realized by 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 rotating shaft assembly 22c, and an electronic device. In the fourth embodiment of the present invention, the hinge assembly 22c of the electronic device is folded and positioned by the cooperation of the rack 2617 and the latch 2506d, when the electronic device is in a completely flattened state, and the latch 2506d is positioned at one end of the rack 2617 close to the first rotating member 253, the electronic device can maintain a stable completely flattened state, and when the electronic device falls down, each element is not easy to shift, so as to avoid damaging the flexible screen; when the electronic device is in the fully folded state, the latch 2506d is positioned at one end of the rack 2617 away from the first rotating member 253, and each element is not easy to shift when the electronic device falls down, 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, namely, the bendable region 31 of the flexible screen 30 is positioned at any bending angle, so that the electronic device can be positioned in a complete flattening state, a middle folding state and a complete folding 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 can promote user's folding feel.
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 positioning mechanism 26b in the fourth embodiment is different from the positioning mechanism 26 in the first embodiment, specifically, the positioning mechanism 26b includes a positioning element 261b and an elastic member 265, where the elastic member 265 is disposed between the base 23 and the positioning element 261b, and is used to bias the positioning element 261b to abut against the 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 segment 2506a, the second limiting segment 2506b or the middle limiting segment 2506c of the limiting portion 2506, so that the first rotating element 253 and the second rotating element 255 are in a completely flattened state, a completely folded state or a middle folded state. In this embodiment, the elastic member 265 elastically pushes the sliding direction of the positioning element 261b perpendicular to the sliding direction of the linkage 250. In other embodiments, the sliding direction of the elastic member 265 elastically pushing the positioning element 261b and the sliding direction of the linkage 250 may not be perpendicular.
In this embodiment, the front surface of the base 23 is provided with positioning mechanisms 26b on two opposite sides of the limiting portion 2506, and the positioning members 261b of the two positioning mechanisms 26b can be positioned on the first limiting segment 2506a, the second limiting segment 2506b or the middle limiting segment 2506c on two opposite sides of the limiting portion 2506. The front surface of the base 23 is provided with supporting frames 266 on two opposite sides of the limiting part 2506, and two positioning mechanisms 26b are respectively arranged on the two supporting frames 266; the support frame 266 includes a support plate 2662 connected to the front surface of the base 23 and a support post 2664 connected to the support plate 2662, and an axis of the support post 2664 is perpendicular to the sliding direction of the linkage 250. The positioning member 261b includes a U-shaped sliding portion 2614d and a protrusion 2614b provided on the sliding portion 2614 d; the elastic member 265 is a spring sleeved on the supporting column 2664, and opposite ends of the spring respectively elastically support against the supporting plate 2662 and the sliding portion 2614d, so that the protruding block 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 a description of embodiments of the present invention, and it should be noted that, for those skilled in the art, modifications and variations can be made without departing from the principles of the embodiments of the present invention, and such modifications and variations are also considered to be within the scope of the present invention.

Claims (23)

1. A spindle assembly, the 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 the linkage piece comprises a first connecting part and a second connecting part;
the first rotating piece is rotationally connected to the base, the first rotating piece is rotationally connected with the first connecting part through the cooperation of a first spiral groove and a first transmission part, the first spiral groove is formed in the peripheral wall of the first connecting part, the first transmission part is rotationally accommodated in the first spiral groove, the first transmission part comprises two spiral first pushing surfaces, and the two first pushing surfaces respectively push against two opposite first inner side surfaces of the first spiral groove; and
the second rotating part is rotationally connected to the base, the second rotating part is rotationally connected with the second connecting part through the cooperation of a second spiral groove and a second transmission part, the second spiral groove is formed in the peripheral wall of the second connecting part, the second transmission part is rotationally accommodated in the second spiral groove, the second transmission part comprises two spiral second pushing surfaces, and the two second pushing surfaces respectively push against two opposite second inner side surfaces of the second spiral groove;
Wherein the first spiral groove and the second spiral groove are opposite in rotation direction, a first rotation axis line between the first rotation member and the first connection portion is parallel to the first direction, a second rotation axis line between the second rotation member and the second connection portion is parallel to the first direction, and the first rotation axis line and the second rotation axis line are parallel to or coincide with each other.
2. The spindle assembly of claim 1, wherein when the first rotating member rotates relative to the first connecting portion, the first transmitting portion moves along the first helical groove such that the linkage member slides in the first direction relative to the base, and wherein sliding of the base moves the second transmitting portion along the second helical groove such that the second rotating member rotates relative to the second connecting portion.
3. The spindle assembly of claim 1, wherein the first and second connection portions are located on opposite sides of a centerline of the linkage, respectively, the centerline of the linkage being parallel to the first direction.
4. A spindle assembly according to claim 3, wherein the first and second helical grooves are symmetrical about the centerline or the first and second rotating members are symmetrical about the centerline.
5. The spindle assembly of claim 1, wherein the first and second connection portions are disposed at intervals along the first direction on the linkage; the first spiral groove and the second spiral groove are offset from each other in the first direction.
6. The rotating shaft assembly according to claim 1, wherein the first spiral groove is formed in the first rotating member, a first transmission block is arranged on the outer circumferential wall of the first connecting portion, the first transmission portion is rotationally sleeved on the first connecting portion, and the first transmission block is slidingly accommodated in the first spiral groove; the second spiral groove is formed in the second rotating piece, a second transmission block is arranged on the outer peripheral wall of the second connecting portion, the second transmission portion is rotationally sleeved on the second connecting portion, and the second transmission block is slidingly accommodated in the second spiral groove.
7. The rotating shaft assembly according to claim 1, wherein the first spiral groove is formed in the outer peripheral wall of the first connecting portion, the first transmission portion is provided with a first transmission block, the first transmission portion is rotationally sleeved on the first connecting portion, and the first transmission block is slidingly accommodated in the first spiral groove; the periphery wall of second connecting portion is equipped with the second helicla flute, the periphery wall of second drive portion is equipped with the second transmission piece, second drive portion rotationally overlaps to be located the second connecting portion, the second transmission piece sliding accommodation in the second helicla flute.
8. The spindle assembly of claim 6 or 7, wherein the first drive includes a first arcuate plate having an axis collinear with the first axis of rotation, and the second drive includes a second arcuate plate having an axis collinear with the second axis of rotation; the base is provided with a matching groove and stop parts arranged at two opposite ends of the matching groove, the first transmission part and/or the second transmission part are 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 stop parts.
9. The spindle assembly of claim 1, wherein the first transmission portion is rotatably coupled to the base by a circular arc-shaped first limit groove in cooperation with a first limit portion to limit movement of the first transmission portion in the first direction, an axis line of the first limit groove is collinear with the first rotational axis line, the first limit groove is provided in one of the first transmission portion and the base, and the first limit portion is provided in the other of the first transmission portion and the base; the second transmission part is rotationally connected with the base through the matching of the circular arc-shaped second limit groove and the second limit part, so that the movement of the second transmission part in the first direction is limited, the axial lead of the second limit groove is collinear with the second rotation axial lead, the second limit groove is arranged on one of the second transmission part and the base, and the second limit part is arranged on the other of the second transmission part and the base.
10. The spindle assembly of claim 1, wherein the linkage is slidably coupled to the base by a mating of a slide guide channel extending in the first direction, the slide guide channel being provided in one of the base and the linkage, and the slide guide being provided in the other of the base and the linkage.
11. The spindle assembly of claim 1, further comprising a positioning mechanism including a positioning member coupled 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 due to the cooperation between the limiting part and the positioning piece.
12. The spindle assembly of claim 11, wherein the spacing portion includes a first spacing segment, a second spacing segment, and an intermediate spacing segment disposed along the first direction, the intermediate spacing segment being located between the first and second spacing segments;
when the positioning piece is positioned at the first limiting section, the first rotating piece and the second rotating piece are in a complete flattening 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 positioning piece is positioned at the middle limiting section, the first rotating piece and the second rotating piece are in a middle folding state.
13. The spindle assembly of claim 11, wherein one of the positioning member and the spacing portion is provided with a rack, teeth of the rack being aligned in the first direction, and the other of the positioning member and the spacing portion is provided with a latch for mating with the rack;
when the latch is positioned at one end of the rack, the first rotating piece and the second rotating piece are in a complete flattening 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 completely folded state; when the latch is engaged with the teeth of the rack, the first rotating member and the second rotating member are in an intermediate folded state.
14. A spindle assembly according to any one of claims 11 to 13, wherein the locating member includes a resilient locating portion; when the linkage piece slides relative to the base, the limiting part can push the positioning part, so that the positioning part is elastically deformed, and the cooperation between the limiting part and the positioning piece is realized.
15. A spindle assembly according to any one of claims 11 to 13, wherein the positioning mechanism further comprises a resilient member disposed between the base and the positioning member for biasing the positioning member against a stop of the linkage.
16. The spindle assembly of claim 1 further comprising a support mechanism including two side supports on opposite sides of the base, each side support being movably coupled to the base by an arcuate adjustment slot in cooperation with an adjustment shaft having an axis parallel to the first axis of rotation; one of the side support members is rotatably connected to the first rotating member, and the other side support member is rotatably connected to the second rotating member.
17. The spindle assembly of claim 16 wherein the side support includes a side support plate and an adjustment arm disposed on a side of the side support plate adjacent the base, the adjustment slot being disposed in the adjustment arm; the adjusting shaft is arranged on the base, and is rotatably and slidingly accommodated in the adjusting groove.
18. The spindle assembly of claim 17 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 support pieces are in the completely flattened state, the adjusting shafts are positioned at the first positioning sections; the adjustment shaft is positioned at the second positioning section when the two side supports are in the fully folded state.
19. The spindle assembly of claim 17 wherein the support mechanism further comprises a middle support member positioned between the two side support members, and a resilient member coupled to the base and the middle support member for biasing the middle support member toward the base; when the two side support pieces are in a complete flattening state, the end parts, away from the side support plates, of the adjusting arms are abutted against the back surface of the middle support piece, and the front surface of the side support piece is coplanar with the front surface of the middle support piece.
20. The spindle assembly of claim 19, wherein the central support comprises a central support plate and a guide strut disposed on a back surface of the central support plate, the base having a guide strut aperture, the guide strut slidably disposed through the guide strut aperture; the supporting mechanism further comprises a clamping piece, the end part, far away from the middle supporting plate, of the sliding guide column is clamped to the clamping piece, and the elastic piece is clamped by the clamping piece and the base.
21. The spindle assembly of claim 17 wherein said support mechanism further comprises a middle support member positioned between two of said side support members, said linkage member further having a clearance channel; when the first rotating piece and the second rotating piece are in a complete flattening 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 avoidance through groove to abut against the back surface of the middle supporting piece.
22. A folding casing, characterized in that the folding casing comprises a rotating shaft assembly and two frames according to any one of claims 1-21, the rotating shaft assembly is located between the two frames, one end of a first rotating member of the rotating shaft assembly, which is far away from a base, is connected to one of the frames, and one end of a second rotating member of the rotating shaft assembly, which is far away from the base, is connected to the other frame.
23. An electronic device, comprising a flexible screen, two frames and a rotating shaft assembly according to any one of claims 1-21, wherein the rotating shaft assembly is located between the two frames, one end of a first rotating member of the rotating shaft assembly, which is far away from a base, is connected to one of the frames, one end of a second rotating member of the rotating shaft assembly, which is far 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
PCT/CN2022/142747 WO2024001127A1 (en) 2022-06-30 2022-12-28 Rotation shaft assembly, folding housing, and electronic apparatus

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CN115076216B (en) * 2022-06-30 2023-05-02 Oppo广东移动通信有限公司 Rotating shaft assembly, folding shell and electronic equipment
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CN118057036A (en) * 2022-11-21 2024-05-21 Oppo广东移动通信有限公司 Rotating shaft device, folding shell and electronic equipment
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